An automatic press-fitting device and method for ducts in engine cylinder heads

Abstract

This application discloses an automatic pressing device and method for ducts in engine cylinder heads, relating to the field of engine cylinder head technology. The device includes a frame connected to a feeding mechanism, a positioning and injection mechanism, and a duct pressing mechanism. The feeding mechanism includes a material channel device, a sliding device, and a transmission device. The material channel device rotates the duct above a conveying hole. The sliding device is connected to a conveying clamp, which can slide relative to the frame to receive the duct falling from the conveying hole. The transmission device drives the duct in the conveying clamp to press upwards into a storage pipe, and subsequent ducts sequentially enter a curved conveying pipe from the storage pipe. The positioning and injection mechanism includes an injection cylinder capable of injecting oil into the cylinder head. The duct pressing mechanism includes a moving device, a duct receiving device, and a pressing head. The duct receiving device receives the duct output from the curved conveying pipe, and the pressing head moves above the duct via the moving device and inserts into the duct. After removing the duct, it is moved and installed into the pin hole of the cylinder head.

Description

Technical Field

[0001] This application belongs to the field of engine cylinder head technology, specifically relating to an automatic press-fitting device and method for engine cylinder head guide tubes. Background Technology

[0002] In the field of engine manufacturing, the cylinder head guides, as key guiding components of the engine valve assembly, directly determine the engine's valve sealing performance, power performance, and service life through their assembly quality with the cylinder head.

[0003] Traditional cylinder head guide press-fitting devices primarily use linear guide pipe conveying for press-fitting. This type of device requires a relatively high platform, occupying a large space above the device, resulting in a high overall footprint and height, thus increasing production costs. Furthermore, the linear guide pipe conveying method leads to reduced production efficiency and is difficult to adapt to high-cycle production demands. Because it typically uses a single-channel conveying structure, guide pipes must be conveyed one by one along a fixed linear track to the press-fitting station. During the conveying process, manual assistance is required for guide pipe posture adjustment and positioning calibration. After each guide pipe is conveyed and pressed, the system must wait for the track to reset or for the next guide pipe to arrive before starting the next process, resulting in significant process intervals and waiting times. Especially in multi-cylinder engine cylinder head production scenarios, multiple guide pipes need to be conveyed and pressed sequentially; the single-channel linear conveying method prolongs the overall press-fitting cycle time, failing to meet the high-efficiency operation requirements of engine production lines.

[0004] Secondly, the existing linear conveying guide tube method is difficult to control the pressing accuracy, which can easily lead to product quality fluctuations. This is because the linear conveying track is prone to wear and deformation during long-term use, causing the guide tube to deviate during the conveying process and fail to accurately reach the preset pressing position. This results in a misalignment of the guide tube and the cylinder head mounting hole during pressing, affecting the quality of the interference fit. Moreover, the linear conveying guide tube may tilt or overturn due to vibration, collision and other factors during the conveying process. The adjustment accuracy depends on the operator's experience, making it difficult to ensure consistency.

[0005] Furthermore, the cleanliness requirements for the linear conveyor track are extremely high. If there are impurities such as oil stains or iron filings on the track surface, they are very easy to adhere to the surface of the guide tube and enter the pressing station with the guide tube. This will not only scratch the surface of the guide tube and the cylinder head mounting hole, affecting the fitting accuracy, but may also cause jamming during the pressing process.

[0006] Furthermore, the linear guide tube delivery method cannot flexibly adapt to the pressing requirements of different models and sizes of cylinder heads, nor can it adjust the pressing depth of different guide tubes. When switching product models, the entire delivery track needs to be modified or replaced, which is not only costly and time-consuming, but also reduces the flexibility and scalability of the production line. Moreover, it lacks timely correction and warning when incorrect guide tube selection is made. In addition, the linear delivery track structure lacks an effective linkage mechanism for pre-processes such as cylinder head positioning and cleaning. After the guide tube is delivered, it must wait for the cylinder head to complete positioning and cleaning before pressing can begin. Even after the cylinder head is ready, it may still wait due to the guide tube not being delivered in time, resulting in poor inter-process coordination and preventing efficient and accurate guide tube delivery to adapt to different cylinder head pressing depths. Summary of the Invention

[0007] This application provides an automatic pressing device and method for engine cylinder head guide tubes to solve the above-mentioned technical problems. Traditional linear guide tube conveying devices and processes have the following drawbacks: they occupy a large space above the device, resulting in a large usable area and height of the entire device, which increases production costs; the guide tubes need to be conveyed one by one to the pressing station along a fixed linear track, and manual assistance is required for guide tube posture adjustment and positioning calibration during the conveying process; the linear conveying track is prone to wear and deformation during long-term use, causing the guide tubes to deviate during the conveying process and fail to accurately reach the preset pressing position; the linear guide tube conveying method cannot flexibly adapt to the pressing requirements of different models and sizes of cylinder heads, nor can it achieve the technical problem of adjusting the pressing depth of different guide tubes.

[0008] The technical solution adopted in this application is as follows:

[0009] This application relates to an automatic press-fitting device for conduits in an engine cylinder head, comprising:

[0010] The frame is connected to a feeding mechanism, a positioning and oil spraying mechanism, and a duct pressing mechanism;

[0011] The feeding mechanism includes a feeding channel device, a sliding device, and a transmission device. The feeding channel device is used to rotate the guide tube above the conveying hole. The sliding device is connected to a conveying clamp, which can slide relative to the frame to receive the guide tube falling from the conveying hole. The transmission device can drive the guide tube in the conveying clamp to be pressed upward into the storage tube. The rear guide tube enters the storage tube so that the front guide tube can enter the curved conveying tube from the storage tube in sequence. After passing through the feeding channel in the curved conveying tube, it rises to a preset height and then falls.

[0012] The positioning and injection mechanism, including the injection cylinder, is capable of positioning the cylinder head and injecting oil into the pin holes.

[0013] The conduit pressing mechanism includes a moving device, a conduit receiving device, and a pressing head; the conduit receiving device is used to receive the conduit output from the curved conveying pipe, and the pressing head is moved above the conduit by the moving device and inserted into the conduit, and after the conduit is lifted upward, it is moved and installed into the pin hole of the cylinder head.

[0014] The feeding mechanism of this application includes a feeding channel device, a sliding device, and a transmission device. The feeding channel device can rotate along the frame, and the guide tubes in multiple guide tube mounting positions within the feeding channel device can rotate to the top of the conveying hole, thereby enabling the corresponding guide tubes to be fed downwards into the conveying hole. The feeding channel device of this application enables multiple guide tubes to enter the conveying hole sequentially for directional transmission, ensuring that the guide tubes remain in a vertical state as they enter the sliding device below, thus facilitating the bottom end of the guide tubes to remain facing upwards. The sliding device is connected to a conveying clamp, which slides along the frame to move to the bottom of the conveying hole, so that the conveying clamp is directly opposite the conveying hole. When the guide tube falls from the conveying hole, it can enter the conveying clamp, thus keeping the guide tube in a vertical state, which is beneficial for subsequent precise pressing. The transmission device is located below the sliding device, and the sliding device can rotate along the frame. The device moves laterally and longitudinally. After the conveyor clamps the guide tube, it can move to the top of the transmission device. The transmission device drives the guide tube to move upward and place it in the storage tube. The storage tube is in a vertical state. A curved conveyor tube is connected to the top of the storage tube. The curved conveyor tube has a curved structure that can extend upward and bend downward. After the guide tubes enter the storage tube in sequence, the subsequent guide tube will push the previous guide tube to continue moving along the storage tube until it moves into the curved conveyor tube. Then it moves from the curved material channel of the curved conveyor tube and exits from the pipe opening of the curved conveyor tube. At this time, the guide tube is in a state with the bottom end facing down. The guide tube that exits from the curved conveyor tube can enter the guide tube receiving device. The moving device drives the pressing head to move to the top of the guide tube in the guide tube receiving device and can insert it downward into the guide tube. Then the guide tube is lifted and enters the top of the pin hole of the cylinder head, and then it is pressed downward into the pin hole.

[0015] The guide tube of this application can automatically complete the entire production line assembly, that is, fully automated assembly from transportation to pressing. It avoids phenomena such as tilted transportation, jamming in the material channel, or stacking of the guide tube. It enables the guide tube to slide against the inner wall of the material channel in the curved transmission path of the curved material channel by the driving force and the force of the guide tube below, without the rigid obstruction of the straight material channel. It can also fall naturally under its own weight, avoiding the stacking of multiple guide tubes, and achieving a horizontal end face and vertical axis when falling, which is conducive to achieving precise positioning and pressing. Moreover, it can save top space and avoid the high falling distance and falling length caused by the straight material channel. Therefore, there is no need for a high platform, saving factory space. In addition, the external driving force during the transportation of the guide tube is reduced, reducing the pressure, scratches and wear on the guide tube, and reducing energy consumption.

[0016] The material channel device includes a cylindrical annular material tray, a feed pipe, and a material transfer detection sensor;

[0017] A cylindrical annular material tray is rotatably connected to the frame, and the cylindrical annular material tray has multiple material dropping holes along its circumference; the top of the cylindrical annular material tray is connected to multiple feed pipes corresponding to the material dropping holes, and a guide tube is placed inside the feed pipe; a material transfer detection sensor is connected to the frame on one side of the cylindrical annular material tray.

[0018] In this application, a cylindrical annular material tray is rotatably connected to the frame. The tray has multiple circumferential dropping holes, and a feed pipe is connected to each dropping hole. The guide tubes are stored within the feed pipes, effectively enabling multi-station parallel storage. This allows for batch storage of guide tubes, reducing frequency and improving continuous production capacity. Rotating the cylindrical annular material tray one station causes the feed pipe to rotate above the dropping hole, with its inner cavity communicating with the dropping hole. When the lower conveying hole opens, the dropping hole connects with the conveying hole, allowing the guide tube to pass through the feeding pipe, dropping hole, and conveying hole into the lower conveying clamp. This avoids multiple guide tubes entering the material channel simultaneously, preventing blockage or stacking, and eliminates mutual squeezing and collision. Each guide tube falls vertically into the lower conveying clamp, ensuring it maintains its initial posture and preventing tilting that could lead to deviations in subsequent pressing. This improves the stable transport and accurate dropping of each guide tube.

[0019] The sliding device includes a material-blocking sliding component and a clamping transmission component;

[0020] The material blocking sliding assembly is located below the conveying hole. The material blocking sliding assembly includes a first driving member and a material blocking baffle. The first driving member can drive the material blocking baffle to open the conveying hole so that the guide tube falls through the discharge hole and the conveying hole.

[0021] The clamping transmission assembly is located below the material blocking sliding assembly. The clamping transmission assembly includes a second driving member and a conveying clamp. The second driving member can move laterally and longitudinally along the frame, so that the conveying clamp moves to below the conveying hole and clamps the guide tube falling from the conveying hole.

[0022] In this application, the first driving component of the sliding device can move along the frame to block the bottom of the conveying hole with a material blocking baffle, preventing the guide tube in the upper feed pipe from falling out of the conveying hole. Therefore, in the initial state, when no guide tube output is required, by driving the material blocking baffle to move below the conveying hole with the first driving component of the material blocking sliding component, the bottom of the conveying hole is blocked, and the guide tube above the conveying hole will not fall directly, which is conducive to the sequential transmission of the guide tube. The purpose of the second driving component in the clamping transmission component being able to move laterally and longitudinally along the frame is to drive the conveying clamp to move laterally or longitudinally relative to the conveying hole, thereby adjusting the corresponding position of the inner cavity of the conveying clamp relative to the conveying hole, so that the inner cavity of the conveying clamp can be directly facing the conveying hole, which is conducive to the guide tube falling in the conveying hole falling into the conveying clamp in the center and being successfully clamped by the conveying clamp.

[0023] The transmission device includes a drive unit, a push rod, a storage pipe, and a curved conveying pipe;

[0024] The drive unit is connected to the push rod, the storage pipe is connected to the frame, and the curved conveying pipe is connected above the storage pipe; the second drive unit can drive the conveying clamp to move above the push rod, and the drive unit drives the push rod to press the guide tube into the storage pipe.

[0025] In this application, a push rod is connected to the drive unit of the transmission device. The push rod corresponds to the lower part of the storage tube. When the sliding device transfers the guide tube on the conveyor clamp to the top of the push rod, the drive unit can drive the push rod to push the guide tube in the conveyor clamp upward and move it into the storage tube. This reciprocating movement allows multiple guide tubes to be sequentially fed into the storage tube. The subsequent storage tubes will push the preceding guide tubes to move upward along the storage tube in sequence. A curved conveying tube is connected to the top of the storage tube. The curved conveying tube can extend upward and then bend downward to form an arc-shaped curved material channel. Therefore, the guide tube can move from bottom to top along the vertically set storage tube. After being transported upwards, the material pipe enters the curved conveyor pipe. After being transported upwards for a certain height, it slowly falls downwards along the inner cavity of the curved conveyor pipe until it exits from the outlet of the curved conveyor pipe. The guide pipe, which was originally in a vertical state with its bottom end facing up and its top end facing down in the storage pipe, becomes an inclined state with its bottom end facing down and its top end facing up after passing through the curved conveyor pipe. Then, it is transported to the guide pipe pressing mechanism through the conveyor support described below, forming a vertical state with its bottom end facing down and its top end facing up. Both the bottom and top end faces are horizontal, and the entire guide pipe is in a vertical state, which is conducive to the subsequent precise lowering and pressing of the guide pipe into the pin hole of the cylinder head.

[0026] The positioning and injection mechanism includes an injection cylinder connected to the frame, a transport mechanism, and a lifting device; the transport mechanism is used to transport the cylinder head; the lifting device is used to insert the connected positioning pin into the positioning hole of the cylinder head to achieve cylinder head positioning; the injection cylinder is used to spray oil toward the surface of the cylinder head.

[0027] In the solution of this application, the injection cylinder of the positioning injection mechanism is connected to the frame, and the transport mechanism is connected to the frame. The transport mechanism can move linearly along the frame, which facilitates the cylinder head to move to the positioning position under the action of the transport mechanism. The lifting device can lift the cylinder head in the positioning position, so that the cylinder head is raised to the set height.

[0028] The conduit receiving device includes a conveyor support, a circular feeding sensor, a conduit storage box, a photographing device, a conduit receiving clamp, and a conduit placement column;

[0029] A circular feeding sensor is connected to the frame; a conveyor support is connected to a curved conveyor pipe; a conduit storage box is located below the conveyor support to receive the conduit falling from the conveyor support; a photographic device is connected to the frame to detect whether the conduit in the conduit storage box is placed upright; a conduit receiving clamp is located below the conduit storage box and can move relative to the frame; a conduit placement column is connected to the frame and has an installation cavity for receiving the conduit.

[0030] In this application, the circular feeding sensor can detect the conduit and open the conveyor support, allowing the conduit to continue moving downwards from the conveyor support until it reaches the conduit storage box below. At this point, the conduit in the conduit storage box should be in a vertical state with its bottom facing down and its top facing up. The conduit storage box has an opening, through which a photographic device can illuminate the conduit inside to identify whether the conduit is installed backwards. The conduit receiving clamp can be set below the conduit storage box. When the conduit needs to be dropped, the corresponding sensor drives the switch to open, allowing the conduit to fall from below the conduit storage box into the conduit receiving clamp. The conduit receiving clamp can move laterally and longitudinally relative to the frame, thereby moving the conduit to the top of the conduit placement column and placing the conduit in the mounting cavity of the conduit placement column, thus preparing a single conduit.

[0031] The conveyor support has a feeding groove, and a blocking cylinder is slidably connected in the feeding groove. The blocking cylinder can retract inward under the action of the circular feeding sensor to open the blocked feeding groove, so that the guide tube falling from the curved conveyor pipe enters the feeding groove and falls into the guide tube storage box.

[0032] In this application, a feeding groove is provided inside the conveyor support. The feeding groove has an inclined part that extends in the same direction as the curved conveyor pipe and a vertical part that extends vertically from the inclined part. A baffle cylinder is connected inside the feeding groove. The baffle cylinder is slidably connected inside the feeding groove and is vertically distributed to the bottom wall of the feeding groove. When the baffle cylinder extends into the feeding groove, it can isolate the path of the feeding groove and prevent the guide tube from continuing to fall along the feeding groove. When the guide tube needs to be output, the circular feeding sensor controls the baffle cylinder to retract according to the received signal, thereby opening the path of the feeding groove. This allows the guide tube to be output from the opening of the curved conveyor pipe and smoothly introduced into the inclined part. Under its own weight and the pushing action of the guide tube behind it, it continues to move forward to the vertical part and can move downward along the vertical part, sliding into the guide tube storage box below.

[0033] The conduit pressing mechanism also includes a transmission mechanism and a cylinder head lifting and positioning mechanism;

[0034] The transmission mechanism is connected to the frame and is used to transport the painted cylinder head; the cylinder head lifting and positioning mechanism includes a stop block, a lifting device, a lifting sensor, a stop block sensor collection box, and a cylinder head barcode scanning sensor;

[0035] The stop block is connected to the conveying mechanism to block the cylinder head; the lifting sensor is connected to the lifting mechanism to detect the cylinder head; the lifting mechanism is located inside the conveying mechanism and lifts the cylinder head to a preset height and inserts the pin into the positioning hole of the cylinder head; the cylinder head barcode sensor is connected to the frame to scan the cylinder head part number and upload it to the controller; the stop block sensor box is connected to the frame, and the stop block sensor box contains a depth stop block sensor and a depth stop block. The depth stop block is used to position the cylinder head above the pin hole to provide pressing depth for the guide tube.

[0036] In this application, the transmission mechanism can move along the frame, facilitating the movement of the cylinder head from the transport mechanism to the transmission mechanism. A stop block in the cylinder head lifting and positioning mechanism is located within the transmission mechanism. During the transmission of the cylinder head, the cylinder head abuts against the stop block and stops moving forward along the transmission mechanism, thus achieving initial positioning of the cylinder head. Then, the pin connected to the lifting mechanism can be inserted into the positioning hole of the cylinder head during the upward movement of the lifting mechanism, thereby achieving repositioning of the cylinder head and fixing it in the transmission mechanism. The cylinder head part number is scanned by a cylinder head barcode sensor, identifying the model and size information of the cylinder head, which is then uploaded to the controller. The controller comprehensively judges the required pressing depth of the conduit for the cylinder head based on all data, controls the corresponding depth stop block to move along the frame to above the pin hole of the cylinder head, places the depth stop block on the pin hole, and then transports the conduit above the pin hole through the pressing head. Under the obstruction of the depth stop block, the pressing of conduits with different pressing depths is achieved.

[0037] This application also relates to an automatic pressing method for conduits in an engine cylinder head, based on the aforementioned automatic pressing device for conduits in an engine cylinder head, the specific steps of which include:

[0038] S1: Place multiple guide tubes inside the material channel device, and rotate the material channel device so that the corresponding guide tubes rotate to the top of the conveying hole;

[0039] S2: The drive sliding device makes the conveyor clamp correspond to the lower part of the conveyor hole, so as to receive the conduit and move the conduit to the upper part of the transmission device;

[0040] S3: The drive transmission device presses the guide tube in the conveyor clamp upward into the storage tube on the frame, and places multiple guide tubes into the storage tube in sequence. The multiple guide tubes enter the curved conveyor tube in sequence along the storage tube, rise to a preset height along the material channel of the curved conveyor tube, and then fall until they are output from the tube opening.

[0041] S4: The cylinder head is transported to the positioning and injection mechanism by the transport mechanism, and oil is sprayed onto the surface of the cylinder head by the injection cylinder.

[0042] S5: The cylinder head is transported to the conduit pressing mechanism via the transport mechanism, and the conduit falls from the curved material conveying pipe into the conduit receiving device;

[0043] S6: The moving device can drive the pressing head to the top of the conduit receiving device and drive the pressing head downward to insert into the conduit so that the conduit is removed from the conduit receiving device, and then move to the top of the pin hole of the cylinder head and press it downward into the pin hole.

[0044] In step S2, the driving sliding device causes the conveying clamp to be positioned below the conveying hole, enabling it to receive the conduit and move the conduit above the transmission device. Specifically, this includes:

[0045] The material-blocking sliding component of the drive sliding device moves away from below the conveying hole, thereby opening the conveying hole;

[0046] The clamping transmission assembly of the driving sliding device is moved to below the transmission hole, so that the transmission clamp connected to the clamping transmission assembly can clamp the guide tube falling from the transmission hole.

[0047] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0048] 1. The feeding mechanism of this application includes a feeding channel device, a sliding device, and a transmission device. The feeding channel device can rotate along the frame, and the guide tubes in multiple guide tube mounting positions in the feeding channel device can rotate to the top of the conveying hole, thereby realizing the downward input of the corresponding guide tubes into the conveying hole. The feeding channel device of this application enables multiple guide tubes to enter the conveying hole sequentially for directional transmission, ensuring that the guide tubes remain in a vertical state from the feeding channel device into the sliding device below, thus facilitating the bottom end of the guide tube to remain in an upward state. The sliding device is connected to a conveying clamp, which can move along the frame to move to the bottom of the conveying hole, so that the conveying clamp is directly facing the conveying hole. When the guide tube falls from the conveying hole, it can enter the conveying clamp and be clamped, thus keeping the guide tube in a vertical state, which is conducive to subsequent precise pressing. The transmission device is located below the sliding device, and the sliding device can rotate along the frame. As the frame moves laterally and longitudinally, the conveyor clamps the guide tube and moves it to the top of the transmission device. The transmission device drives the guide tube upward and places it in the storage tube, which is vertical. A curved conveyor tube is connected above the storage tube. The curved conveyor tube has a curved structure that can extend upward and bend downward. As the guide tubes enter the storage tube one by one, the subsequent guide tubes will push the preceding guide tubes to continue moving along the storage tube until they move into the curved conveyor tube. Then, they move from the curved channel of the curved conveyor tube and exit from the pipe opening of the curved conveyor tube. At this time, the guide tube is in a state with its bottom end facing down. The guide tube that exits from the curved conveyor tube can enter the guide tube receiving device. The moving device drives the pressing head to move above the guide tube in the guide tube receiving device and can insert it downward into the guide tube. Then, the guide tube is lifted and enters the top of the pin hole of the cylinder head, and then pressed downward into the pin hole.

[0049] The guide tube of this application can automatically complete the fully automated assembly of the entire production line from transportation to pressing, and avoid phenomena such as tilted transportation, jamming in the material channel, and stacking of the guide tube. It can achieve the flexible transmission path of the curved material channel, relying on the driving force and the force of the guide tube below to slide against the inner wall of the material channel, without the rigid obstruction of the straight material channel. It can also fall naturally under its own weight, avoiding the stacking of multiple guide tubes, and achieving a horizontal end face and vertical axis when falling, which is conducive to achieving precise positioning and pressing. Moreover, it can save top space and avoid the high falling distance and falling length caused by the straight material channel. Therefore, there is no need for a high platform, saving factory space. In addition, the reduced external driving force during the transportation of the guide tube reduces the pressure, scratches and wear on the guide tube, and reduces energy consumption. Attached Figure Description

[0050] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0051] Figure 1 This is a schematic diagram of the feeding mechanism of an automatic press-fitting device for the conduit of an engine cylinder head according to one embodiment of this application;

[0052] Figure 2 This is a front view schematic diagram of the feeding mechanism of an automatic press-fitting device for the conduit of an engine cylinder head according to one embodiment of this application;

[0053] Figure 3 This is a schematic diagram of the positioning and injection mechanism of an automatic press-fitting device for the guide pipe of an engine cylinder head according to one embodiment of this application;

[0054] Figure 4 This is a front view schematic diagram of the positioning and injection mechanism of an automatic press-fitting device for the duct of an engine cylinder head according to one embodiment of this application.

[0055] Figure 5 This is a schematic diagram of the conduit pressing mechanism of an automatic conduit pressing device for an engine cylinder head according to one embodiment of this application, taken from a first angle.

[0056] Figure 6 This is a schematic diagram of the conduit pressing mechanism of an automatic conduit pressing device for an engine cylinder head according to one embodiment of this application, taken from a second angle.

[0057] Figure 7 This is a schematic diagram of the structure of an automatic press-fit device for the guide tube of an engine cylinder head according to one embodiment of this application, taken from a first angle.

[0058] Figure 8 This is a schematic diagram of the structure of an automatic press-fit device for the guide tube of an engine cylinder head according to one embodiment of this application, taken from a second angle.

[0059] Figure 9 This is a schematic diagram of the conduit receiving fixture of an automatic conduit pressing device for an engine cylinder head according to one embodiment of this application;

[0060] Figure 10 This is a schematic diagram of the baffle assembly of an automatic press-fitting device for the guide tube of an engine cylinder head according to one embodiment of this application;

[0061] Figure 11 This is a schematic diagram of the conveyor support of an automatic press-fitting device for an engine cylinder head guide tube according to one embodiment of this application;

[0062] Figure 12 This is a partial structural schematic diagram of the feeding mechanism of an automatic pressing device for a conduit in an engine cylinder head according to one embodiment of this application;

[0063] In the picture,

[0064] 1. Cylindrical annular material tray; 2. Servo motor; 3. Material transfer detection sensor; 4. Air valve; 5. First drive component; 6. Material blocking baffle; 7. Second drive component; 8. Sliding support; 9. Conveyor clamp; 10. Push rod; 11. Material storage pipe; 12. Material blocking sensor; 13. Unloading pipe; 14. Unloading box; 15. Curved conveying pipe; 16. Conveying mechanism; 17. Baffle plate; 18. Control motor; 19. Lifting device; 20. Cylinder body; 21. Positioning pin; 22. Oil injection cylinder; 23. Position detection sensor; 24. First drive motor; 25. Second drive motor; 26. First lead screw; 27. Second lead screw; 28. First tank chain; 29. ​​Second tank chain; 30. Feeding groove; 31. Stopping cylinder; 32. Circular feeding sensor; 33. Feeding control motor; 34. Small tank chain; 35. Imaging device; 36. Conduit storage box; 37. Conduit receiving fixture; 38. Conduit placement column; 39. Pressing head; 40. Depth stop; 41. Stop 42. Block sensor housing; 43. Material stop block; 44. Lifting sensor; 45. Lifting mechanism; 46. Cylinder head barcode scanner; 47. Transmission mechanism; 48. Unloading positioning tube; 49. Unloading positioning box; 50. Feeding base; 51. Oil injection base; 52. Pressing base; 53. Drive control mechanism; 54. Feed pipe; 55. Conveyor channel support; 56. Conduit receiving drive device; 57. Composite cylinder device; 58. Receiving clamp body; 59. First baffle assembly; 50. ... 60. Two-baffle assembly; 61. Positioning plate; 62. Connecting plate assembly; 63. Second connecting plate; 64. Third connecting plate; 65. Cylinder drive component; 66. Guide bracket; 67. Bottom baffle; 68. Bottom support claw; 69. First inlet channel; 70. Second inlet channel; 71. Third inlet channel; 72. Fourth inlet channel; 73. Corner; 74. Bend; 75. First guide surface; 76. Second guide surface; 77. Bottom inlet channel; 78. Conveying hole. Detailed Implementation

[0065] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0066] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0067] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 the present invention.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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 invention according to the specific circumstances.

[0069] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0070] Example 1

[0071] This application relates to an automatic press-fitting device for conduits in an engine cylinder head, such as... Figure 1-12 As shown, it includes:

[0072] The frame is connected to a feeding mechanism, a positioning and oil spraying mechanism, and a duct pressing mechanism;

[0073] The feeding mechanism includes a feeding channel device, a sliding device, and a transmission device. The feeding channel device is used to rotate the guide tube above the conveying hole. The sliding device is connected to a conveying clamp 9, which can slide relative to the frame so that the conveying clamp 9 can receive the guide tube falling from the conveying hole 75. The transmission device can drive the guide tube in the conveying clamp 9 to be pressed upward into the storage pipe 11. The rear guide tube enters the storage pipe 11 so that the front guide tube can enter the curved conveying pipe 15 from the storage pipe 11 in sequence. After passing through the feeding channel in the curved conveying pipe 15, it rises to a preset height and then falls.

[0074] The positioning and injection mechanism includes an injection cylinder 22, which is capable of positioning the cylinder head and injecting oil into the pin holes;

[0075] The conduit pressing mechanism includes a moving device, a conduit receiving device, and a pressing head 39. The conduit receiving device is used to receive the conduit output from the curved conveyor pipe 15. The pressing head 39 is moved above the conduit by the moving device and inserted into the conduit. After the conduit is lifted upward, it is moved and installed into the pin hole of the cylinder head.

[0076] The feeding mechanism of this application includes a feeding channel device, a sliding device, and a transmission device. The feeding channel device can rotate along the frame, and the guide tubes in multiple guide tube mounting positions in the feeding channel device can rotate to the top of the conveying hole 75, thereby realizing the downward input of the corresponding guide tubes into the conveying hole 75. The feeding channel device of this application can realize the sequential entry of multiple guide tubes into the conveying hole 75 for directional transmission, ensuring that the guide tubes remain in a vertical state from the feeding channel device into the sliding device below, thus facilitating the bottom end of the guide tubes to remain in an upward state. The sliding device is connected to a conveying clamp 9, which can move along the frame to the bottom of the conveying hole 75, so that the conveying clamp 9 is directly facing the conveying hole 75. When the guide tube falls from the conveying hole 75, it can enter the conveying clamp 9, thus keeping the guide tube in a vertical state, which is conducive to subsequent precise pressing. The transmission device is located below the sliding device, and the sliding device can move along the frame laterally and longitudinally. The conveyor clamp 9 moves the guide tube above the transmission device after clamping it. The transmission device drives the guide tube to move upward and place it in the storage tube 11. The storage tube 11 is vertical. A curved conveyor tube 15 is connected above the storage tube 11. The curved conveyor tube 15 has a curved structure and can extend upward and bend downward. After the guide tubes enter the storage tube 11 in sequence, the subsequent guide tubes will push the previous guide tubes to continue moving along the storage tube 11 until they move into the curved conveyor tube 15. Then, they move from the curved channel of the curved conveyor tube 15 and are output from the pipe opening of the curved conveyor tube 15. At this time, the guide tube is in a state with the bottom end facing down. The guide tube output from the curved conveyor tube 15 can enter the guide tube receiving device. The moving device drives the pressing head 39 to move above the guide tube in the guide tube receiving device and can insert it downward into the guide tube. Then, after lifting the guide tube, it enters the top of the pin hole of the cylinder head and is pressed downward into the pin hole.

[0077] The conduit of this application can automatically complete the assembly of the entire production line, that is, fully automated assembly from transportation to pressing. It avoids phenomena such as tilted transportation, jamming in the material channel, and stacking of the conduit. It enables the conduit to slide against the inner wall of the material channel in the curved transmission path of the curved material channel by the driving force and the force of the conduit below, without the rigid obstruction of the straight material channel. It can also fall naturally under its own weight, avoiding the stacking of multiple conduits, and achieving a horizontal end face and vertical axis when falling, which is conducive to achieving precise positioning and pressing. Moreover, it can save top space and avoid the high falling distance and falling length caused by the straight material channel. Therefore, there is no need for a high platform, saving factory space. In addition, the external driving force during the transportation of the conduit is reduced, reducing the pressure, scratches and wear on the conduit, and reducing energy consumption.

[0078] like Figure 7-8 As shown, the frame includes a feeding base 49, an oil spraying base 50, and a pressing base 51. Figure 7 In the indicated orientation, the loading base 49 is separately located on the left side, and the injection base 50 and the pressing base 51 are connected to form an integrated structure, which facilitates the transmission of the cylinder head from the transport mechanism 16 of the injection base 50 to the transmission mechanism 46 of the pressing base 51; a material channel device, a sliding device, and a transmission device are connected above the loading base 49, such as... Figure 1 As shown, the material channel device is connected to the left side of the feeding base 49, the sliding device is connected to the right side of the feeding base 49, and the transmission device is connected to the bottom of the feeding base 49, which corresponds to the storage pipe 11.

[0079] In a preferred embodiment, the material channel device includes a cylindrical annular material tray 1, a feed pipe 53, and a material transfer detection sensor 3; the cylindrical annular material tray 1 is rotatably connected to the frame, and the cylindrical annular material tray 1 has multiple material dropping holes along the circumferential direction; the top of the cylindrical annular material tray 1 is connected to multiple feed pipes 53 corresponding to the material dropping holes respectively, and a guide tube is placed inside the feed pipe 53; the material transfer detection sensor 3 is connected to the frame on one side of the cylindrical annular material tray 1.

[0080] A positioning plate is connected to the feeding base 49. The positioning plate has through holes corresponding to the material dropping holes. A cylindrical annular material plate 1 is rotatably connected to the top of the positioning plate via a rotary support bearing. When the cylindrical annular material plate 1 rotates, the material dropping holes on the cylindrical annular material plate 1 can be aligned with the through holes on the positioning plate below, thereby facilitating material dropping. Multiple feed pipes 53 perpendicular to the cylindrical annular material plate 1 are connected circumferentially to the cylindrical annular material plate 1. The feed pipes 53 extend vertically upward, and their height is higher than that of the guide tubes. The purpose is to accommodate guide tubes of different lengths and sizes, so that the guide tubes can be installed inside the feed pipes 53. When the cylindrical annular material plate 1 rotates relative to the positioning plate, it can drive multiple guide tubes to rotate along the positioning plate. A material transfer detection sensor 3 is connected to the positioning plate. When a single guide tube in the cylindrical annular material plate 1 is used up, the two oppositely installed material transfer detection sensors 3 receive signals from each other. At this time, the servo motor 2 drives the cylindrical annular material plate 1 to rotate counterclockwise, so that another guide tube is in the feeding state.

[0081] In this application, the cylindrical annular material tray 1 is rotatably connected to the frame. The cylindrical annular material tray 1 has multiple dropping holes along the circumference. A feed pipe 53 is connected to each dropping hole on the cylindrical annular material tray 1. The guide tube is stored in the feed pipe 53, which is equivalent to multi-station parallel storage. This enables batch storage of guide tubes, reduces frequency, and improves continuous production capacity. When the cylindrical annular material tray 1 rotates one station, the feed pipe 53 rotates to the position above the dropping hole. The inner cavity of the feed pipe 53 is connected to the dropping hole. When the lower conveying hole 75 is opened, the dropping hole and the conveying hole 75 are connected, so that the guide tube can enter the lower conveying clamp 9 from the feed pipe 53 through the dropping hole and the conveying hole 75. This avoids multiple conduits entering the material channel simultaneously, preventing blockages or stacking. Furthermore, without mutual squeezing or collision, each conduit can fall vertically into the lower conveyor clamp 9, ensuring that each conduit maintains its initial posture and preventing tilting that could lead to deviations in subsequent pressing. This improves the stable transport and accurate material dropping of each conduit.

[0082] In a preferred embodiment, the sliding device includes a material-blocking sliding assembly and a clamping transmission assembly. The material-blocking sliding assembly is disposed below the conveying hole 75 and includes a first driving member 5 and a material-blocking baffle 6. The first driving member 5 can drive the material-blocking baffle 6 to open the conveying hole 75, so that the guide tube falls through the drop hole and the conveying hole 75. The clamping transmission assembly is disposed below the material-blocking sliding assembly and includes a second driving member 7 and a conveying clamp 9. The second driving member 7 can move laterally and longitudinally along the frame, so that the conveying clamp 9 moves to below the conveying hole 75 and clamps the guide tube falling from the conveying hole 75.

[0083] like Figure 1-2As shown, the material-blocking sliding assembly includes a material-blocking sensor 12, a first driving member 5, and a material-blocking baffle 6. The material-blocking sensor 12 is connected to the first driving member 5, and the material-blocking baffle 6 is connected to the side of the first driving member 5 facing the cylindrical annular material tray 1. When the material is manually fed into the guide tube in the cylindrical annular material tray 1, the material-blocking sensor 12 can receive the material signal, thereby driving the first driving member 5 to move the material-blocking baffle 6 towards the cylindrical annular material tray 1. Since the material-blocking sliding assembly is located below the cylindrical annular material tray 1, when the material-blocking baffle 6 moves towards the cylindrical annular material tray 1, it can block the conveying hole 75 on the cylindrical annular material tray 1, thereby preventing the guide tube from falling out of the conveying hole 75. The clamping transmission assembly includes a sliding support 8, a second driving member 7, and a transmission... The sliding support 8 is connected to the second driving component 7. Preferably, the second driving component 7 is a cylinder, which is connected to a valve 4. Compressed air is transmitted to the cylinder through the valve 4. The cylinder can drive the sliding support 8 to move toward the cylindrical annular material tray 1. One end of the sliding support 8 facing the cylindrical annular material tray 1 is connected to a conveying clamp 9. The conveying clamp 9 is a long strip structure with a rectangular cross-section and has a cavity inside. Preferably, clamps can be set on both sides of the conveying clamp 9. The clamps can be adjusted to maintain the relative distance between them to hold different sizes of guide tubes falling from above. The second driving component 7 drives the conveying clamp 9 to move laterally or longitudinally along the frame, so that the guide tube can move to the top of the transmission device, which is beneficial for the subsequent conveying of the guide tube.

[0084] In this application, the first driving member 5 of the sliding device can move along the frame so that the material blocking baffle 6 can block the lower part of the conveying hole 75, preventing the guide tube in the upper feed pipe 53 from falling out of the conveying hole 75. Therefore, in the initial state, when no guide tube output is required, by driving the material blocking baffle 6 to move below the conveying hole 75 through the first driving member 5 of the material blocking sliding assembly, the lower part of the conveying hole 75 is blocked, and the guide tube above the conveying hole 75 will not fall directly, which is conducive to the sequential transmission of the guide tube. The purpose of the second driving member 7 in the clamping transmission assembly being able to move laterally and longitudinally along the frame is to drive the conveying clamp 9 to move laterally or longitudinally relative to the conveying hole 75, thereby adjusting the corresponding position of the inner cavity of the conveying clamp 9 relative to the conveying hole 75, so that the inner cavity of the conveying clamp 9 can be directly facing the conveying hole 75, which is conducive to the guide tube falling in the conveying hole 75 falling into the conveying clamp 9 and being successfully clamped by the conveying clamp 9.

[0085] In a preferred embodiment, the transmission device includes a drive device, a push rod 10, a storage pipe 11, and a curved conveying pipe 15. The drive device is connected to the push rod 10, the storage pipe 11 is connected to the frame, and the curved conveying pipe 15 is connected above the storage pipe 11. The second drive member 7 can drive the conveying clamp 9 to move above the push rod 10. The drive device drives the push rod 10 to press the guide tube into the storage pipe 11. The rear guide tube enters the storage pipe 11 so that the front guide tube can enter the curved conveying pipe 15 from the storage pipe 11 in sequence. After passing through the material channel in the curved conveying pipe 15, it rises to a preset height and then falls.

[0086] like Figure 1-2 As shown, the transmission device is located below the sliding device. The transmission device includes a drive unit connected to the frame, capable of moving vertically upward relative to the frame. The drive unit is a cylinder, which drives the push rod 10 upward, allowing the push rod 10 to push the guide tube in the conveying clamp 9 into the storage pipe 11 opposite to the push rod 10. The storage pipe 11 has a vertically distributed pipe structure, and a curved conveying pipe 15 is connected above the storage pipe 11. The structure of the curved conveying pipe 15 is as follows: Figure 1 As shown, it has a bent portion, a first extension portion and a second extension portion. The first extension portion is used to connect to the top of the storage tube 11. The bent portion is connected between the first extension portion and the second extension portion. The second extension portion can extend downward at an angle. The bent portion has an arc-shaped structure. Multiple conduits located in the storage tube 11 enter the curved conveying tube 15 in sequence. As the conduits continuously enter the storage tube 11, the conduits behind can continuously push the conduits in front to move forward in sequence. After the conduits move vertically from bottom to top through the storage tube 11, they then move from bottom to top through the curved conveying tube 15 and then slide downward. The initial state of the conduits in the storage tube 11 is a vertical state with the bottom end facing up and the top end facing down. After passing through the curved conveying tube 15, they form an inclined state with the bottom end facing down and the top end facing up. Then they are output to the conduit receiving device in the conduit pressing mechanism described below.

[0087] In this application, a push rod 10 is connected to the drive unit of the transmission device. The push rod 10 corresponds to the lower part of the storage tube 11. When the sliding device transmits the guide tube on the conveyor clamp 9 to the top of the push rod 10, the drive unit can drive the push rod 10 to push the guide tube in the conveyor clamp 9 upward and move it into the storage tube 11. This reciprocating movement allows multiple guide tubes to be sequentially fed into the storage tube 11. The subsequent storage tubes 11 will push the preceding guide tubes to move upward along the storage tube 11 in sequence. A curved conveying tube 15 is connected to the top of the storage tube 11. The curved conveying tube 15 can extend upward and then bend downward to form an arc-shaped curved material channel. Therefore, the guide tube can move from bottom to top along the channel. After being transported upwards through the vertically arranged storage pipe 11, the material enters the curved conveying pipe 15. After being transported upwards for a certain height, it slowly falls downwards along the inner cavity of the curved conveying pipe 15 until it is output from the outlet of the curved conveying pipe 15. Originally, the guide tube in the storage pipe 11 was in a vertical state with the bottom end facing up and the top end facing down. After passing through the curved conveying pipe 15, it becomes an inclined state with the bottom end facing down and the top end facing up. Then, it is transported to the guide tube pressing mechanism through the conveying channel support 54, forming a vertical state with the bottom end facing down and the top end facing up. Both the bottom and top end faces are horizontal, and the entire guide tube is in a vertical state, which is conducive to the subsequent accurate lowering and pressing of the guide tube into the pin hole of the cylinder head.

[0088] Furthermore, the feeding base 49 is also connected to an unloading mechanism, which includes an unloading pipe 13 and an unloading box 14. The unloading box 14 is connected below the unloading pipe 13, and the unloading pipe 13 is connected in the feeding base 49. When excess guide tubes do not need to be pressed, they can be transported into the unloading pipe 13 by a sliding device and fall down into the unloading box 14 for collection.

[0089] In a preferred embodiment, the positioning injection mechanism includes an injection cylinder 22 connected to the frame, a transport mechanism 16, and a lifting device 19; the transport mechanism 16 is used to transport the cylinder head; the lifting device 19 is used to extend the connected positioning pin 21 into the cylinder head positioning hole to achieve cylinder head positioning; the injection cylinder 22 is used to spray oil toward the cylinder head surface.

[0090] like Figure 3-4As shown, the positioning injection mechanism includes an injection base 50, on which a transport mechanism 16 is connected. The transport mechanism 16 uses rolling rollers to form a roller conveyor structure. The control motor 18 can control the start and stop of the roller conveyor. When the cylinder head moves from the roller conveyor to the baffle plate 17 in the roller conveyor, it can be initially positioned under the action of the baffle plate 17. In application, the injection base 50 in the positioning injection mechanism is also connected to a position detection sensor 23, which is used to detect the cylinder head and transmit the signal to the baffle plate 17. The baffle plate 17 blocks and limits the cylinder head, and then the control motor 18 controls the roller conveyor to stop rotating. A lifting device 19 is installed on the frame within the roller conveyor, corresponding to the initial positioning position of the cylinder head. The lifting device 19 is connected to a cylinder body 20, which drives the lifting device 19 upwards to pass through the roller conveyor. Since a positioning pin 21 is connected to the top of the lifting device 19, the upward movement of the lifting device 19 inserts the positioning pin 21 into the pin hole of the cylinder head, thereby positioning and connecting the cylinder head to the roller conveyor, preventing lateral movement, and achieving precise positioning of the cylinder head. After positioning, oil is sprayed onto the surface of the cylinder head through the oil injection cylinder 22 connected to the oil injection base 50, completing the oil injection operation.

[0091] In the solution of this application, the injection cylinder 22 of the positioning injection mechanism is connected to the frame, and the transport mechanism 16 is connected to the frame. The transport mechanism 16 can move linearly along the frame, so that the cylinder head moves to the positioning position under the action of the transport mechanism 16. The lifting device 19 can lift the cylinder head in the positioning position, so that the cylinder head is raised to the set height.

[0092] Furthermore, the moving device of the conduit pressing mechanism includes a first moving assembly, a second moving assembly, and a support. The first moving assembly is slidably connected to the upper part of the second moving assembly via the support. The first moving assembly includes a first base, a first drive motor 24, a first lead screw 26, and a first tank chain 28. The first base is slidably connected to the upper part of the support, and the bottom of the support is slidably connected to the upper part of the second base. The first drive motor 24 can control the rotation of the first lead screw 26, and the first lead screw 26 drives the first tank chain 28 to move back and forth, thereby realizing the back and forth movement of the first base relative to the support. The second moving assembly includes a second base, a second drive motor 25, a second lead screw 27, and a second tank chain 29. The second drive motor 25 can control the rotation of the first lead screw 26, and the first lead screw 26 drives the first tank chain 28 to move back and forth, thereby realizing the back and forth movement of the first base relative to the support. The second lead screw 27 is rotated, which drives the second tank chain 29 to move left and right, thereby moving the pressing head assembly under the first base. The pressing head assembly has a pressing bracket and a pressing head 39 connected to the bottom of the pressing bracket. The first base is also connected to a drive control mechanism 52, which can drive the pressing head 39 to move up and down. The bottom of the pressing head 39 has a rubber ring. When the pressing head 39 is moved to the top of the guide tube in the guide tube placement column 38 by the moving device, the rubber ring can be inserted into the inside of the guide tube and positioned and connected to the guide tube under the downward action of the pressing head 39. The moving device drives the pressing head 39 to move above the pin hole of the cylinder head and presses it down into the inside of the pin hole.

[0093] Furthermore, it should be noted that the stop sensor collection box 41 is connected to the frame. The stop sensor collection box 41 contains a depth stop sensor and a depth stop 40. The depth stop 40 is used to position the cylinder head above the pin hole and provide pressing depth for the guide tube. When the model of the depth stop 40 taken from the stop sensor collection box 41 does not match the cylinder head, the depth stop sensor can detect the model of the depth stop 40 taken. The depth stop sensor will upload a signal to the controller, and the controller will start an alarm program to provide a prompt. When replacing the guide tube with another model, the unloading program will be started. After the guide tube receiving clamp 37 receives the guide tube, it will not transport the guide tube to the guide tube placement column 38, but will directly convey it backward to the unloading positioning tube 47 connected to the pressing base 51. The guide tube receiving clamp 37 can release the clamp and let the guide tube fall through the unloading positioning tube 47 into the unloading positioning box 48 connected below the unloading positioning tube 47.

[0094] In a preferred embodiment, the conduit receiving device includes a conveyor support 54, a circular feeding sensor 32, a conduit storage box 36, a photographing device 35, a conduit receiving clamp 37, and a conduit placement column 38. The circular feeding sensor 32 is connected to the frame. The conveyor support 54 is connected to the curved conveyor pipe. The conduit storage box 36 is located below the conveyor support 54 and is used to receive the conduit falling from the conveyor support 54. The photographing device 35 is connected to the frame and is used to detect whether the conduit in the conduit storage box 36 is placed upright. The conduit receiving clamp 37 is located below the conduit storage box 36 and can move relative to the frame. The conduit placement column 38 is connected to the frame and has an installation cavity for receiving the conduit.

[0095] like Figure 5-6 As shown, the conduit receiving device of this application includes a pressing base 51, on which a conveying channel support 54, a circular feeding sensor 32, a conduit storage box 36, and a photographing device 35 are connected, as well as a conduit receiving clamp 37 and a conduit placement column 38. The feeding groove 30 in the conveying channel support 54 has an inclined portion, which can be connected to the curved conveying pipe 15 in the feeding mechanism, so that the conduit is smoothly guided from the curved conveying pipe 15 into the inclined portion, and then moves through the conveying channel support 54 to the conduit storage box 36 below. The circular feeding sensor 32 can control the baffle column 31 described below in the conveying channel support 54. By opening the baffle column 31, the feeding groove 30 of the conveying channel support 54 is unobstructed, so that the conduit can slide downward through the feeding groove 30. The conduit storage box 36 is connected to the lower part of the conveying channel support 54 and can be used to receive the conduit, so that the conduit can be smoothly guided from the curved conveying pipe 15 into the inclined portion, and then moved through the conveying channel support 54 to the conduit storage box 36 below. The tube can fall vertically into the conduit storage box 36. The photographing device 35 can take a picture of the conduit in the conduit storage box 36 and upload it to the controller to determine the orientation of the conduit. If the conduit is reversed, the device will display an error message. After the picture is taken, the conduit continues to slide down into the conduit receiving clamp 37. The conduit receiving clamp 37 can hold the conduit and move it laterally and longitudinally along the frame. The feeding control motor 33 drives the small tank chain 34 to transport the conduit in the conduit receiving clamp 37 to the conduit placement column 38, thereby moving the conduit above the conduit placement column 38. Then, the clamps in the conduit receiving clamp 37 are released, allowing the conduit to fall into the conduit placement column 38. At this time, the conduit will not fall out of the conduit placement column 38, but will be stably connected to the mounting cavity of the conduit placement column 38. A guide post can be set in the mounting cavity of the conduit placement column 38 so that the conduit can be inserted into the outside of the guide post for positioning.

[0096] Furthermore, the structure of the conveyor support is as follows: Figure 11As shown in the diagram, the conveyor support has four inlet channels from left to right. These four channels connect to the bottom inlet channel 74, through which the material enters the lower conduit storage box. Of the four inlet channels, the angle between the leftmost first inlet channel 66 and the bottom inlet channel 74 is between 125-130°, meaning the angle between the extension direction of the first inlet channel 66 and the vertical direction is 25-30°. The bottom inlet channel 74 has a corner section near the top for adjusting the vertical descent of the conduit. 70, the corner portion 70 has a corner of 140-150°, the corner portion 70 includes a first guide surface 72 disposed above the bottom inlet channel 74 and a second guide surface 73 disposed below the bottom inlet channel, the first guide surface 72 and the second guide surface 73 have a planar structure, and the first guide surface 72 and the second guide surface 73 have an arc transition surface to achieve a smooth transition; after the guide tube is output from the curved conveyor pipe to the first inlet channel 66, when it can continue to move downward from the first inlet channel 66 to the corner portion 70, after the corner portion 70 is adjusted, the guide tube is under the influence of gravity Under the action of the mechanism, it can be adjusted from an inclined state to a vertical falling state; similarly, the second inlet channel 67, located to the right of the first inlet channel 66, extends vertically downward. After passing through the second inlet channel 67, the guide tube passes through the lower area of ​​the first inlet channel 66 and enters the bottom inlet channel 74. After passing through the corner 70, it is adjusted to a vertical state and falls into the guide tube storage box; similarly, the third inlet channel 68, located to the right of the second inlet channel 67, extends vertically downward. The guide tube enters the fourth inlet channel 69 from the third inlet channel 68, passes through the fourth inlet channel 69... After entering the bottom inlet channel 74 in the lower area, the conduit passes through the corner section 70 and is adjusted to a vertical position before falling into the conduit storage box. The upper half of the fourth inlet channel 69, located to the right of the third inlet channel 68, is inclined to the right, while the lower half extends vertically downwards. A bend section 71 connects to the upper part of the lower half, and the bend section 71 has the same structure as the corner section 70. This allows the inclined conduit entering from the fourth inlet channel 69 to be adjusted to a vertical position after passing through the bend section 71 and falling into the conduit storage box. The purpose of setting up the first inlet channel 66, the second inlet channel 67, the third inlet channel 68, and the fourth inlet channel 69 is to facilitate the transportation of conduits of different sizes and to enable the installation of conduits adapted to different cylinder heads.

[0097] In this application, the circular feeding sensor 32 can detect the guide tube and control the rise and fall of the baffle cylinder 31, thereby closing or opening multiple inlet channels within the conveyor support 54. This allows the guide tube to continue moving downwards from within the conveyor support 54 until it reaches the guide tube storage box 36 below. At this point, the guide tube in the guide tube storage box 36 is in a vertical state with its bottom end facing down and its top end facing up. The guide tube receiving clamp 37 can be positioned below the guide tube storage box 36. When the guide tube needs to be dropped, the corresponding sensor drives the switch to open, allowing the guide tube to fall from below the guide tube storage box 36 into the guide tube receiving clamp 37. The guide tube receiving clamp 37 can move laterally and longitudinally relative to the frame, thereby moving the guide tube directly above the guide tube placement column 38 and placing the guide tube in the mounting cavity of the guide tube placement column 38, thus preparing a single guide tube.

[0098] Specifically, the structure of the catheter receiving clamp 37 is as follows: Figure 9 As shown, the device includes a conduit receiving drive device 55, a compound cylinder device 56, and a receiving clamp body 57. The conduit receiving drive device 55 includes a starter motor, a ball screw, and a flexible chain. The starter motor is connected to the ball screw via a gear transmission system to drive the ball screw to rotate, thereby causing a sliding block connected to the ball screw to move along the guide rail of the receiving clamp fixed plate. The sliding block is connected to a receiving clamp moving plate, thereby driving the receiving clamp moving plate to move along the guide rail. The compound cylinder device 56 is connected to the receiving clamp moving plate, and the driving end of the compound cylinder device 56 is connected to the receiving clamp body 57. The compound cylinder device 56 includes a motor and a cylinder. The machine is connected to a cylinder, and a first slider and a second slider are connected to the cylinder. The first slider and the second slider can move relative to each other by being driven by the cylinder. The first slider and the second slider are respectively connected to receiving clamps 57. The output shaft of the motor can drive the cylinder to rotate. The cylinder can drive the first slider and the second slider to generate relative movement, so that the receiving clamps 57 on both sides can rotate and generate relative opening and closing movement between the two receiving clamps 57. This enables the flipping and clamping of different types of conduits in different positive and negative states falling from the conduit storage box, so that the conduits are in a positive vertical state and then moved into the conduit placement column.

[0099] In a preferred embodiment, a feeding groove 30 is provided in the conveying channel support 54, and a blocking cylinder 31 is slidably connected in the feeding groove 30. The blocking cylinder 31 can retract inward under the action of the circular feeding sensor 32 to open the blocked feeding groove 30, so that the guide tube falling from the curved conveying pipe 15 enters the feeding groove 30 and falls into the guide tube storage box 36.

[0100] like Figure 5-6As shown, a feeding groove 30 is provided inside the conveying channel support 54. The feeding groove 30 has a Y-shaped structure. The inclined part of the feeding groove 30 is used to connect with the curved conveying pipe 15, so that the guide pipe can move through the inclined part of the feeding groove 30 to the vertical part below. Multiple baffle cylinders 31 are arranged at intervals inside the feeding groove 30. The baffle cylinders 31 can be controlled by a circular feeding sensor 32. The baffle cylinders 31 are similar to cylindrical structures and are vertically connected inside the feeding groove 30. When the circular feeding sensor 32 detects that the guide pipe needs to slide down, it can control the baffle cylinders 31 to retract inward, so that there is no longer an obstruction structure on the bottom wall of the feeding groove 30. The guide pipe can continue to move down along the feeding groove 30 until it slides into the guide pipe storage box 36 below.

[0101] In this application, a feeding groove 30 is provided inside the conveying channel support 54. The feeding groove 30 has an inclined part that extends in the same direction as the curved conveying pipe 15 and a vertical part that extends vertically from the inclined part. A baffle cylinder 31 is connected inside the feeding groove 30. The baffle cylinder 31 is slidably connected inside the feeding groove 30 and is vertically distributed to the bottom wall of the feeding groove 30. When the baffle cylinder 31 extends into the feeding groove 30, it can isolate the path of the feeding groove 30 and prevent the guide tube from continuing to fall down along the feeding groove 30. When the guide tube needs to be output, the circular feeding sensor 32 controls the baffle cylinder 31 to retract according to the received signal, thereby opening the path of the feeding groove 30. This allows the guide tube to be smoothly introduced into the inclined part after being output from the pipe opening of the curved conveying pipe 15. Under the push of its own weight and the guide tube behind it, it continues to move forward to the vertical part, moves down along the vertical part, and slides into the guide tube storage box 36 below.

[0102] In a preferred embodiment, the conduit pressing mechanism further includes a transmission mechanism 46 and a cylinder head lifting and positioning mechanism; the transmission mechanism 46 is connected to the frame and is used to transport the painted cylinder head; the cylinder head lifting and positioning mechanism includes a stop block 42, a lifting mechanism 44, a lifting sensor 43, a depth stop block 40, a stop block sensor collection box 41, and a cylinder head barcode sensor 45; the stop block 42 is connected to the transmission mechanism 46 and is used to block the cylinder head; the lifting sensor 43 is connected to the lifting mechanism 44 and is used to detect the cylinder head; the lifting mechanism 44 is disposed in the transport mechanism 16, and the cylinder head is lifted to a preset height by the lifting mechanism 44 and the pin is inserted into the positioning hole of the cylinder head; the cylinder head barcode sensor 45 is used to scan the cylinder head part number and upload it to the controller; the stop block sensor collection box 41 is connected to the frame, and the stop block sensor collection box 41 is connected to a depth stop block sensor and a depth stop block 40, the depth stop block 40 is used to position the cylinder head above the pin hole of the cylinder head and provide pressing depth for the conduit.

[0103] like Figure 5-6As shown, the conduit pressing mechanism includes a pressing base 51, on which a transmission mechanism 46 is provided. The transmission mechanism 46 uses rollers to form a roller conveyor structure. The cylinder head can be moved from the transport mechanism 16 to the transmission mechanism 46. A stop block 42 is connected in the transmission mechanism 46. The stop block 42 has the same function as the stop plate 17 in the transport mechanism 16, which limits the cylinder head and moves it to the positioning position. After the lifting sensor 43 connected to the lifting mechanism 44 detects that the cylinder head is in the positioning position, it controls the lifting mechanism 44 to lift the cylinder head to the set height. The pin connected to the lifting mechanism 44 is inserted into the positioning hole, so that the cylinder head is positioned in the transmission mechanism 46. Then, the cylinder head barcode sensor 45 connected to the pressing base 51 can scan and identify the cylinder head part number and upload the identification information. A stop block sensor is also connected to the pressing base 51. The block sensor collection box 41 has multiple depth block sensors and multiple depth blocks 40. The block sensor collection box 41 has a box structure with multiple small cylindrical holes inside. Multiple depth blocks 40 of different models and pressing heads 39 are installed in the small cylindrical holes. The block sensor collection box 41 is used to store different models of depth blocks 40 and pressing heads 39. When using depth blocks 40 and pressing heads 39 of different depths, the depth block sensors can upload the information of the corresponding cylinder head depth blocks 40 and pressing heads 39 to the controller. At this time, the depth blocks 40 in the block sensor collection box 41 can be transported to the baffle assembly by a robot or by hand. The baffle assembly transports the depth blocks 40 to the block mounting position above the pin hole of the cylinder head. The depth blocks 40 are driven to be placed on the four pin holes of the cylinder head, thereby realizing the pressing of guides of different depths.

[0104] Specifically, the baffle assembly includes a first baffle assembly 58, a second baffle assembly 59, and a positioning plate 60; the first baffle assembly 58 and the second baffle assembly 59 are symmetrically connected to both sides of the top of the positioning plate 60; the first baffle assembly 58 and the second baffle assembly 59 have the same structure, and the first baffle assembly 58 will be described in detail here as an example:

[0105] like Figure 10As shown, the first baffle assembly 58 includes a connecting plate assembly 61, a cylinder drive component 62, a guide bracket 63, a bottom baffle 64, and a bottom support claw 65. The connecting plate assembly 61 includes multiple connecting plates connected sequentially from top to bottom, labeled as a first connecting plate, a second connecting plate 611, and a third connecting plate 612. The first connecting plate is used to connect to the press-fit base, thereby positioning the entire first baffle assembly 58 on the press-fit base. The second connecting plate 611 is connected below the first connecting plate, and the third connecting plate 612 is connected below the second connecting plate 611. A guide bracket 63 connects the second connecting plate 611 and the third connecting plate 612. The guide bracket 63 includes multiple guide posts and a transverse bracket connected above the multiple guide posts. The bottom of the guide posts is connected to the third connecting plate 612, and the top of the guide posts is connected to the transverse bracket. The transverse bracket can connect to the top of the second connecting plate 611, thereby realizing the positioning connection between the second connecting plate 611 and the third connecting plate 612. A cylinder drive component 62 is connected to the third connecting plate 612. The cylinder body of the cylinder drive component 62 is fixedly connected to the top of the third connecting plate 612 by bolts. The cylinder rod of the cylinder drive component 62... The cylinder rod extends through the cylinder body, with its top and bottom extending beyond the cylinder body to connect with the bottom baffle 64. Two bottom support claws 65 are connected to the bottom baffle 64, each connecting to the front and rear ends of one side of the positioning plate 60. The cylinder rod is driven by the cylinder drive unit 62. Since the cylinder body is fixed to the press-fit base, the cylinder rod can move up and down along the cylinder body, thereby causing the bottom baffle 64, bottom support claws 65, and the positioning plate 60 on the bottom support claws 65 to move up and down. The positioning plate 60 has circular holes on its four periphery to form depth block mounting positions for installing positioning depth blocks. The depth blocks that match the cylinder head are picked up by a robot or manually and installed in the depth block mounting positions. Then, the positioning plate 60 is moved up and down by the first baffle assembly 58 and the second baffle assembly 59 respectively, so that the positioning plate 60 drives multiple depth blocks to be installed above the corresponding pin holes of the cylinder head. Then, the guide tube is pressed into the corresponding pin hole through the depth block, so as to match the depth blocks of different sizes with different types of cylinder heads and to press in guide tubes of different depths.

[0106] In this application, the transmission mechanism 46 can move along the frame, facilitating the movement of the cylinder head from the transport mechanism 16 to the transmission mechanism 46. The stop block 42 in the cylinder head lifting and positioning mechanism is located within the transmission mechanism 46. During the transmission of the cylinder head by the transmission mechanism 46, the cylinder head abuts against the stop block 42, stopping its forward movement along the transmission mechanism 46, thus achieving initial positioning of the cylinder head. Then, the pin connected to the lifting device 19 can be inserted into the positioning hole of the cylinder head during the upward movement of the lifting device 19, thereby achieving repositioning of the cylinder head. The cover is fixed in the transmission mechanism 46; the cylinder head part number on the cylinder head is scanned by the cylinder head barcode sensor 45, which can identify the model and size of the cylinder head and upload the information to the controller. The controller makes a comprehensive judgment based on all the data to determine the pressing depth of the guide tube required for the cylinder head, and controls the depth stop 40 of the corresponding depth to move along the frame to above the pin hole of the cylinder head. The depth stop 40 is placed on the pin hole of the cylinder head, and then the guide tube is transported to above the pin hole through the pressing head 39. Under the blocking action of the depth stop 40, the pressing of guide tubes with different pressing depths is achieved.

[0107] Example 2

[0108] This application also relates to an automatic pressing method for conduits in an engine cylinder head, based on the aforementioned automatic pressing device for conduits in an engine cylinder head, the specific steps of which include:

[0109] S1: Place multiple guide tubes inside the material channel device, and rotate the material channel device so that the corresponding guide tubes rotate to the top of the conveying hole 75;

[0110] Specifically, the material channel device includes a cylindrical annular material tray 1, a feed pipe 53, and a transfer detection sensor 3; the top of the cylindrical annular material tray 1 is connected to a plurality of feed pipes 53 arranged at equal intervals along the circumference; when the guide tubes are placed sequentially into the feed pipes 53 of the cylindrical annular material tray 1, the cylindrical annular material tray 1 is rotated so that the feed pipes 53 correspond to the conveying holes 75 below; when a single guide tube in the cylindrical annular material tray 1 is installed, the two oppositely installed transfer detection sensors 3 receive signals from each other, and at this time the servo motor 2 drives the cylindrical annular material tray 1 to rotate counterclockwise, so that the other guide tube is in the feeding state;

[0111] S2: The drive sliding device causes the conveyor clamp 9 to be positioned below the conveyor hole 75, so that it can receive the conduit and move the conduit to the top of the transmission device;

[0112] Specifically, the sliding device includes a material-blocking sliding assembly and a clamping transmission assembly; the material-blocking sliding assembly includes a material-blocking sensor 12, a first driving member 5, and a material-blocking baffle 6; when the manual feeding of the guide tube in the cylindrical annular material tray 1 is completed, the material-blocking sensor 12 can receive the material signal, thereby driving the first driving member 5 to move the material-blocking baffle 6 toward one side of the cylindrical annular material tray 1. When the material-blocking baffle 6 moves toward the cylindrical annular material tray 1, it can block the conveying hole 75 on the cylindrical annular material tray 1, thereby preventing the guide tube from falling from the conveying hole 75; when the guide tube needs to be output, by moving the material-blocking baffle 6 away from the cylindrical annular material tray 1, the conveying hole 75 on the cylindrical annular material tray 1 can be opened, allowing the guide tube to fall from the conveying hole 75; the sliding support 8 of the clamping transmission assembly moves toward the cylindrical annular material tray 1, and the second driving member 7 drives the conveying clamp 9 to move laterally or longitudinally along the frame, thereby allowing the guide tube to move above the transmission device.

[0113] S3: The drive transmission device presses the guide tube in the conveyor clamp 9 upward into the storage tube 11 on the frame, and places multiple guide tubes into the storage tube 11 in sequence. The multiple guide tubes enter the curved conveyor tube 15 along the storage tube 11 in sequence, rise to a preset height along the material channel of the curved conveyor tube 15 and then fall until they are output from the tube opening.

[0114] Specifically, the transmission device includes a drive device, a push rod 10, a storage tube 11, and a curved conveying tube 15; the second drive member 7 can drive the conveying clamp 9 to move above the push rod 10, and the drive device drives the push rod 10 to press the guide tube into the storage tube 11. The guide tube enters the storage tube 11 in sequence so that the guide tube can enter the curved conveying tube 15 from the storage tube 11. After passing through the material channel in the curved conveying tube 15, it rises to a preset height and then falls. The guide tube in the storage tube 11 is in a vertical state with the bottom end facing up and the top end facing down. After passing through the curved conveying tube 15, it forms an inclined state with the bottom end facing up and the top end facing up.

[0115] S4: The cylinder head is transported to the positioning and injection mechanism via the transport mechanism 16, and oil is sprayed onto the surface of the cylinder head via the injection cylinder 22.

[0116] Specifically, the positioning and injection mechanism includes an injection base 50, an injection cylinder 22, a transport mechanism 16, and a lifting device 19 connected to the injection base 50. The transport mechanism 16 uses rolling rollers to form a roller conveyor structure. The control motor 18 can control the start and stop of the roller conveyor. When the cylinder head moves from the roller conveyor to the baffle plate 17 in the roller conveyor, it can be initially positioned under the action of the baffle plate 17. The top of the lifting device 19 is connected to a positioning pin 21. The positioning pin 21 can be inserted into the pin hole of the cylinder head by the upward movement of the lifting device 19, thereby positioning the cylinder head. After positioning, the injection cylinder 22 connected to the injection base 50 sprays oil toward the surface of the cylinder head to complete the injection operation.

[0117] S5: The cylinder head is transported to the conduit pressing mechanism via the transport mechanism 16, and the conduit falls from the curved material conveying pipe 15 into the conduit receiving device;

[0118] Specifically, the conduit receiving device includes a conveyor support 54, a circular feeding sensor 32, a conduit storage box 36, a photographing device 35, a conduit receiving clamp 37, and a conduit placement column 38. The circular feeding sensor 32 can detect the conduit and control the retraction of the retaining column 31 to open multiple paths of the conveyor support 54, allowing the conduit to continue moving downwards from the conveyor support 54 until it reaches the conduit storage box 36 below. At this point, the conduit in the conduit storage box 36 is in a vertical state with its bottom facing down and its top facing up. The conduit receiving clamp 37 can be positioned... Below the conduit storage box 36, the photographing device 35 can take a picture of the conduit inside the conduit storage box 36 to determine whether the conduit is placed in the correct orientation. If the conduit is placed in the wrong orientation, an error message will be displayed. When the conduit is placed in the correct orientation and the conduit needs to be dropped, the bottom of the conduit storage box is opened by the corresponding sensor drive switch, so that the conduit can fall from below the conduit storage box 36 into the conduit receiving clamp 37. The conduit receiving clamp 37 can move horizontally and vertically relative to the frame, thereby moving the conduit to the top of the conduit placement column 38 and placing the conduit in the mounting cavity of the conduit placement column 38.

[0119] S6: The moving device can drive the pressing head 39 to the top of the conduit receiving device and drive the pressing head 39 downward to insert into the conduit so that the conduit is removed from the conduit receiving device and moved to the top of the pin hole of the cylinder head and pressed downward into the pin hole.

[0120] Specifically, the moving device includes a first moving component, a second moving component, and a support. The first moving component is slidably connected to the upper part of the second moving component via the support. The first moving component can drive the pressing head 39 to move back and forth, and the second moving component can drive the pressing head 39 to move left and right. The drive control mechanism 52 can drive the pressing head 39 to move up and down, thereby controlling the pressing head 39 to move above the guide tube placement post 38. The bottom of the pressing head 39 is connected to a rubber ring that can be inserted into the guide tube, lifting the guide tube from the guide tube placement post 38 and then moving it above the pin hole of the cylinder head. At the same time, the cylinder head is transported to the transmission mechanism 46, and the lifting mechanism 44 lifts the cylinder head to a preset height and inserts the pin into the positioning hole of the cylinder head. The cylinder head barcode sensor 45 is used for scanning. The cylinder head part number is encoded and uploaded to the controller. The controller can determine the model of the depth stop 40 based on the cylinder head model. When the depth stop 40 is taken out from the stop sensor collection box 41, if the size of the picked-up depth stop 40 matches the size of the cylinder head, the depth stop sensor will not issue an error warning. When an error occurs, the depth stop sensor will transmit a signal to the controller, which will then issue a warning through the alarm system. Alternatively, the depth stop 40 can be placed in the depth stop mounting position on the frame by a robotic arm, so that the depth stop 40 can be placed above the four pin holes of the cylinder head. Then, the pressing head 39 is driven to press the guide tube below the pressing head 39 into the pin hole through the depth stop 40, thereby limiting the installation depth of the guide tube and realizing the pressing of different depths for different guide tubes.

[0121] Further, in step S2, the driving sliding device causes the conveying clamp 9 to be positioned below the conveying hole 75, enabling it to receive the conduit and move the conduit above the transmission device, specifically including:

[0122] The material-blocking sliding component of the drive sliding device moves away from below the conveying hole 75, thereby opening the conveying hole 75;

[0123] The clamping transmission assembly of the driving sliding device is moved to below the transmission hole 75, so that the transmission clamp 9 connected to the clamping transmission assembly can clamp the conduit falling from the transmission hole 75.

[0124] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0125] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0126] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. An automatic press-fitting device for conduits in an engine cylinder head, characterized in that, include: The frame is connected to a feeding mechanism, a positioning and oil spraying mechanism, and a duct pressing mechanism; The feeding mechanism includes a feeding channel device, a sliding device, and a transmission device. The top of the cylindrical annular material tray (1) of the feeding channel device is connected to multiple feeding pipes (53) corresponding to the dropping holes of the cylindrical annular material tray (1). A guide tube is placed inside the feeding pipe (53). The cylindrical annular material tray (1) is used to rotate the guide tube to the top of the conveying hole. The sliding device is connected to a conveying clamp (9), which can slide relative to the frame so that the conveying clamp (9) can receive the guide tube falling from the conveying hole. The transmission device can drive the guide tube in the conveying clamp (9) to be pressed upward into the storage pipe (11). The rear guide tube enters the storage pipe (11) so that the front guide tube can enter the curved conveying pipe (15) from the storage pipe (11) in sequence. After passing through the material channel in the curved conveying pipe (15), it rises to a preset height and then falls. The positioning and injection mechanism includes an injection cylinder (22) which can position the cylinder head and inject oil into the pin hole; The conduit pressing mechanism includes a moving device, a conduit receiving device, and a pressing head (39); the conduit receiving device is used to receive the conduit output from the curved conveying pipe (15), and the pressing head (39) is moved above the conduit by the moving device and inserted into the conduit, and after the conduit is lifted upward, it is moved and installed into the pin hole of the cylinder head; the conduit receiving device includes a conveying channel support, the conveying channel support has multiple inlet channels of different sizes, the inlet channels are respectively connected to the bottom inlet channel below, the bottom inlet channel has a corner part for adjusting the conduit to a vertical falling state, and by adjusting the corner part, the conduit is adjusted from an inclined state to a vertical falling state.

2. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 1, characterized in that, The material channel device includes a cylindrical annular material tray (1), a feed pipe (53), and a material transfer detection sensor (3); The cylindrical annular material tray (1) is rotatably connected to the frame. The cylindrical annular material tray (1) has multiple material dropping holes along the circumferential direction. A material transfer detection sensor (3) is connected to the frame on one side of the cylindrical annular material tray (1).

3. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 2, characterized in that, The sliding device includes a material-blocking sliding component and a clamping transmission component; The material blocking sliding assembly is located below the conveying hole (75). The material blocking sliding assembly includes a first driving member (5) and a material blocking baffle (6). The first driving member (5) can drive the material blocking baffle (6) to open the conveying hole (75) so that the guide tube falls through the drop hole and the conveying hole (75). The clamping transmission assembly is located below the material blocking sliding assembly. The clamping transmission assembly includes a second drive member (7) and a conveying clamp (9). The second drive member (7) can move laterally and longitudinally along the frame, so that the conveying clamp (9) moves to below the conveying hole (75) and clamps the guide tube falling from the conveying hole (75).

4. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 1, characterized in that, The transmission device includes a drive device, a push rod (10), a storage pipe (11), and a curved conveying pipe (15). The drive unit is connected to the push rod (10), the storage pipe (11) is connected to the frame, and the curved conveying pipe (15) is connected above the storage pipe (11); the second drive unit (7) can drive the conveying clamp (9) to move above the push rod (10), and the drive unit drives the push rod (10) to press the conduit into the storage pipe (11).

5. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 1, characterized in that, The positioning and injection mechanism includes an injection cylinder (22), a transport mechanism (16), and a lifting device (19) connected to the frame; the transport mechanism (16) is used to transport the cylinder head; the lifting device (19) is used to extend the connected positioning pin (21) into the cylinder head positioning hole to achieve cylinder head positioning; the injection cylinder (22) is used to spray oil toward the cylinder head surface.

6. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 1, characterized in that, The conduit receiving device includes a conveyor support (54), a circular feeding sensor (32), a conduit storage box (36), a photographing device (35), a conduit receiving clamp (37), and a conduit placement column (38). A circular feeding sensor (32) is connected to the frame; a conveyor support (54) is connected to a curved conveyor pipe; a conduit storage box (36) is located below the conveyor support (54) to receive the conduit falling from the conveyor support (54); a photographing device (35) is connected to the frame to detect whether the conduit in the conduit storage box (36) is placed upright; a conduit receiving clamp (37) is located below the conduit storage box (36) and can move relative to the frame; a conduit placement column (38) is connected to the frame and has an installation cavity for receiving the conduit.

7. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 6, characterized in that, The conveyor support (54) has a feeding groove (30) inside. A blocking cylinder (31) is slidably connected inside the feeding groove (30). The blocking cylinder (31) can retract inward under the action of the circular feeding sensor (32) to open the blocked feeding groove (30), so that the guide tube falling from the curved conveyor pipe (15) enters the feeding groove (30) and falls into the guide tube storage box (36).

8. The automatic press-fitting device for the conduit of an engine cylinder head as described in claim 6, characterized in that, The conduit pressing mechanism also includes a transmission mechanism (46) and a cylinder head lifting and positioning mechanism; The transmission mechanism (46) is connected to the frame and is used to transport the cylinder head after spraying. The cylinder head lifting and positioning mechanism includes a stop block (42), a lifting mechanism (44), a lifting sensor (43), a stop block sensor collection box (41), and a cylinder head barcode scanning sensor (45). The stop block (42) is connected to the transmission mechanism (46) to block the cylinder head; the lifting sensor (43) is connected to the lifting mechanism (44) to detect the cylinder head; the lifting mechanism (44) is set in the transport mechanism (16) and lifts the cylinder head to a preset height and inserts the pin into the positioning hole of the cylinder head; the cylinder head barcode sensor (45) is connected to the frame to scan the cylinder head part number and upload it to the controller; the stop block sensor box (41) is connected to the frame and has a depth stop block sensor and a depth stop block (40) connected in the stop block sensor box (41). The depth stop block (40) is used to position the cylinder head above the pin hole and provide pressing depth for the guide tube.

9. An automatic pressing method for a conduit in an engine cylinder head, based on the automatic pressing device for a conduit in an engine cylinder head according to any one of claims 1-8, characterized in that, The specific steps include: S1: Place multiple guide tubes inside the material channel device, and rotate the material channel device so that the corresponding guide tubes rotate to the top of the conveying hole (75); S2: The drive sliding device causes the transfer clamp (9) to be positioned below the transfer hole (75), so that it can receive the conduit and move the conduit to the top of the transmission device; S3: The drive transmission device presses the guide tube in the conveyor clamp (9) upward into the storage tube (11) on the frame, and places multiple guide tubes into the storage tube (11) in sequence. The multiple guide tubes enter the curved conveyor tube (15) along the storage tube (11) in sequence, rise to a preset height along the curved material channel of the curved conveyor tube (15) and then fall until they are output from the tube opening. S4: The cylinder head is transported to the positioning and injection mechanism via the transport mechanism (16), and oil is sprayed onto the surface of the cylinder head via the injection cylinder (22); S5: The cylinder head is transported to the conduit pressing mechanism via the transport mechanism (16), and the conduit falls from the curved material conveying pipe (15) into the conduit receiving device; S6: The moving device can drive the pressing head (39) to the top of the conduit receiving device and drive the pressing head (39) to insert downward into the conduit so that the conduit is removed from the conduit receiving device and moved to the top of the pin hole of the cylinder head and pressed downward into the pin hole.

10. The automatic press-fitting method for the conduit in an engine cylinder head as described in claim 9, characterized in that, In S2, the driving sliding device causes the conveying clamp (9) to be positioned below the conveying hole (75), enabling it to receive the conduit and move the conduit above the transmission device. Specifically, this includes: The material-blocking sliding component of the drive sliding device moves away from below the conveying hole (75), thereby opening the conveying hole (75); The clamping transmission assembly of the drive sliding device is moved to below the transmission hole (75), so that the transmission clamp (9) connected to the clamping transmission assembly can clamp the conduit falling from the transmission hole (75).

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