Guide pipe seat ring press-fitting equipment

Abstract

The utility model provides guide pipe seat ring press-fitting equipment which comprises a machine table, an air inlet side driving mechanism and an air outlet side driving mechanism are arranged on the machine table, an air inlet side sliding table horizontally moves on the air inlet side driving mechanism in a reciprocating mode, a plurality of air inlet material carrying tables are fixedly arranged on the air inlet side sliding table, and an air outlet side sliding table horizontally moves on the air outlet side driving mechanism in a reciprocating mode. A plurality of exhaust material carrying tables are fixedly arranged on the exhaust side sliding table, an air inlet side press-fitting mechanism is arranged on the portion, on the air inlet side driving mechanism, of the machine table, an exhaust side press-fitting mechanism is arranged on the portion, on the exhaust side driving mechanism, of the machine table, and the air inlet side press-fitting mechanism or the exhaust side press-fitting mechanism comprises a rack. The rack is provided with a downward pressing assembly located above the machine table and an upward ejecting assembly located below the machine table, the rack is further provided with a material pressing assembly located above the machine table, and the material pressing assembly and the air inlet material carrying table or the air exhaust material carrying table clamp products. The utility model not only solves a series of problems in the prior art, but also provides an efficient, reliable and high-precision press-fitting solution.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and relates to an automatic press-fitting machine, in particular to a catheter seat ring press-fitting device. Background Art

[0002] In modern industrial production, the design and manufacture of catheter seat ring press-fitting devices are key technical links, and their performance directly affects product quality and production efficiency. Although technology is constantly advancing, the existing technology still faces a series of challenges in many aspects, especially in terms of press-fitting accuracy, automation level, equipment adjustment and maintenance, adaptability and flexibility, and the durability of mechanical components. The existence of these problems limits the operating efficiency, precision, and reliability of the equipment, becoming a bottleneck restricting productivity improvement.

[0003] First of all, press-fitting accuracy and consistency are one of the most critical technical challenges. During continuous production, each catheter seat ring must be accurately press-fitted to a specified position to ensure the overall performance and quality of the product. However, traditional press-fitting devices often struggle to maintain long-term accuracy and consistency. Especially on high-speed production lines, the accumulation of tiny errors may lead to significant quality fluctuations. This lack of accuracy not only affects the reliability of the product but also may result in a decrease in production efficiency and an increase in the scrap rate.

[0004] Secondly, the limitation of the automation level is also a major challenge. Existing press-fitting devices often have limited functions in terms of automation integration, especially in precisely controlling the press-fitting force and position adjustment. This limitation not only reduces the convenience of operation but also affects the improvement of production efficiency. In the modern production environment, the requirements for the automation and intelligence of equipment are getting higher and higher, which requires more advanced technologies to achieve more precise control and more efficient production processes.

[0005] In addition, the complexity of equipment adjustment and maintenance is also an important problem faced by the existing technology. Frequent manual adjustments during tool change are not only time-consuming but also prone to errors, which to some extent increases production costs and maintenance costs. The complex maintenance and troubleshooting processes require professional skills, which limit the ability to quickly respond to production needs.

[0006] Finally, existing equipment is usually insufficient in terms of adaptability and flexibility and is difficult to adapt to diverse production needs. In modern industrial production, equipment that can flexibly handle various types and sizes of catheter seat rings is increasingly favored. In addition, the wear and aging of mechanical components during long-term use are also issues that cannot be ignored, which directly affect the stability and continuous operation ability of the equipment. Summary of the Utility Model

[0007] The purpose of the utility model is to propose a catheter seat ring press-fitting device in view of the above problems existing in the existing technology.

[0008] The object of the present utility model can be achieved by the following technical solutions: A catheter seat ring press-fitting device, including a machine table, an air inlet side driving mechanism and an air outlet side driving mechanism are arranged on the machine table, an air inlet side sliding table reciprocates horizontally on the air inlet side driving mechanism, several air inlet loading tables are fixedly arranged on the air inlet side sliding table, an air outlet side sliding table reciprocates horizontally on the air outlet side driving mechanism, several air outlet loading tables are fixedly arranged on the air outlet side sliding table, an air inlet side press-fitting mechanism is arranged on the machine table on the air inlet side driving mechanism, an air outlet side press-fitting mechanism is arranged on the machine table on the air outlet side driving mechanism, the air inlet side press-fitting mechanism or the air outlet side press-fitting mechanism includes a frame, a downward pressing component located above the machine table and an upward pushing component located below the machine table are arranged on the frame, a material pressing component located above the machine table is further arranged on the frame, and the material pressing component clamps the product with the air inlet loading table or the air outlet loading table.

[0009] Preferably, the air inlet side driving mechanism or the air outlet side driving mechanism includes a servo motor and a linear guide rail, the servo motor rotates a ball screw through a speed reducer and a coupling, the ball screw is arranged in parallel with the linear guide rail, a nut is sleeved on the ball screw, the nut is fixedly connected to the air inlet side sliding table or the air outlet side sliding table through a connecting block, and the bottom of the air inlet side sliding table or the air outlet side sliding table is clamped to the corresponding linear guide rail through a slider to form a sliding connection.

[0010] Preferably, the frame includes an upper support plate, a middle support plate and a lower support plate, the upper support plate, the middle support plate and the lower support plate are fixedly connected through several support columns, the upper support plate is located above the machine table, the middle support plate is fixedly arranged on the top surface of the machine table, the lower support plate is located below the machine table, and the support columns penetrate through the machine table.

[0011] Preferably, the downward pressing component includes a mounting plate 1 installed on the upper support plate, a catheter servo press is fixedly installed on the mounting plate 1, a self-centering device and a catheter pressing head are sequentially installed on the downward pressing rod of the catheter servo press, a clamping rod is arranged at the bottom end of the catheter pressing head, a clamping spring is installed in the clamping rod, the downward pressing rod is fixedly connected to an upper guide rail through a mounting block, an upper guide block is fixedly arranged on the upper support plate, and the upper guide rail is clamped to the upper guide block to form a sliding connection.

[0012] Preferably, the upward pushing component includes a mounting plate 2 installed on the lower support plate, a seat ring servo press is fixedly installed on the mounting plate 2, the upper pressing rod of the seat ring servo press is fixedly connected to a lower guide rail through a mounting block, a lower guide block is fixedly arranged on the lower support plate, the lower guide rail is clamped to the lower guide block to form a sliding connection, the top end of the lower guide rail is fixedly connected to a seat ring pressing head through a connecting seat, and the catheter pressing head and the seat ring pressing head are arranged in a confrontation up and down.

[0013] Preferably, on both sides of the conduit press head, the first mounting plate is oppositely provided with a pair of opposed fiber optics, and on both sides of the seat ring press head, the second mounting plate is oppositely provided with a pair of opposed fiber optics.

[0014] Preferably, the middle support plate includes two separated plate bodies on the left and right. An installation gap is formed between the two plate bodies. The linear guide rail and the air inlet side sliding table / the air exhaust side sliding table are arranged in the area of the installation gap. The machine table is located in the area of the installation gap and corresponds to the seat ring press head to open a pressing window.

[0015] Preferably, the blank holding assembly includes guide columns erected on the top surface of the separated plate bodies. A return spring is sleeved on the guide columns. A cylinder head pressing block is slidably sleeved on the two guide columns. The cylinder head pressing block is supported on two return springs to form an elastic support. A locking block is arranged at the top end of the guide column. Pressing cylinders are arranged on the outer sides of both ends of the cylinder head pressing block. The telescopic rod of the pressing cylinder is fixedly connected with a wedge-shaped plate. The pointed end of the wedge-shaped plate extends into the gap between the cylinder head pressing block and the locking block.

[0016] Preferably, the air inlet loading table has an air inlet side inclined table surface, and the air exhaust loading table has an air exhaust side inclined table surface. The inclination directions of the air inlet side inclined table surface and the air exhaust side inclined table surface are opposite; the inclination direction of the cylinder head pressing block of the air inlet side pressing mechanism matches the inclination direction of the air inlet side inclined table surface, and the inclination direction of the cylinder head pressing block of the air exhaust side pressing mechanism matches the inclination direction of the air exhaust side inclined table surface.

[0017] Compared with the prior art, the present conduit seat ring pressing equipment has the following beneficial effects:

[0018] 1. Improve pressing accuracy and consistency: The equipment integrates an advanced servo motor and a linear guide rail, combines a self-centering device and a precise press head design, ensuring the accuracy and repeatability in the pressing process. This helps to guarantee the quality standard of each product, reduce the rejection rate, and improve the overall production quality.

[0019] 2. Enhance automation and operation efficiency: The equipment uses a servo drive mechanism to achieve the automated sliding table movement, can precisely control the pressing force and position through programming, reduce human operation errors, and at the same time speed up the production speed and improve the overall working efficiency.

[0020] 3. Simplify equipment adjustment and improve adaptability: The adjustable pressing window and modular pressing components included in the design make it more convenient and quick for the equipment to replace different specifications of conduit seat rings. This design enhances the adaptability of the equipment and can quickly adapt to changing production requirements.

[0021] 4. Reduce maintenance costs and extend equipment life: By using wear-resistant materials and optimizing the mechanical structure design, such as reinforced support columns and mounting plates, the wear of mechanical components is reduced, the service life of the equipment is extended, and at the same time, the daily maintenance work is simplified.

[0022] 5. Improve equipment safety and stability: The structural design of the equipment takes into account stability and safety. For example, the elastic support system and locking block design of the blanking component can prevent accidental displacement or loosening during operation, ensuring the safety of operators.

[0023] 6. Increase production flexibility: The design of the equipment allows for quick configuration and switching of different pressing modes. Through integrated sensing technology (such as opposed fiber optics), the pressing state can be monitored in real time, enabling more flexible and responsive production adjustments.

[0024] Overall, the present utility model not only solves a series of problems in the prior art, but also provides an efficient, reliable and high-precision pressing solution, which is particularly suitable for high-standard and large-volume industrial production environments. Description of the Drawings

[0025] Figure 1 is the overall three-dimensional structure diagram of this catheter seat ring pressing equipment.

[0026] Figure 2 is the overall front view structure diagram of this catheter seat ring pressing equipment.

[0027] Figure 3 is the three-dimensional structure diagram of the machine table in this catheter seat ring pressing equipment.

[0028] Figure 4 is the three-dimensional structure diagram of the air intake side pressing mechanism in this catheter seat ring pressing equipment.

[0029] Figure 5 is the front view structure diagram of the lower pressing component in this catheter seat ring pressing equipment.

[0030] Figure 6 is the three-dimensional structure diagram of the lower pressing component in this catheter seat ring pressing equipment.

[0031] In the figure, 1 is the machine platform; 2 is the servo motor; 3 is the speed reducer; 4 is the coupling; 5 is the ball screw; 6 is the linear guide; 7 is the connecting block; 8 is the air inlet side sliding table; 9 is the air inlet side loading table; 10 is the air outlet side sliding table; 11 is the air outlet side loading table; 12 is the air inlet side pressing mechanism; 13 is the air outlet side pressing mechanism; 14 is the upper support plate; 15 is the middle support plate; 16 is the lower support plate; 17 is the support column; 18 is the catheter servo press; 19 is the self-centering device; 20 is the catheter pressing head; 21 is the clamping rod; 22 is the clamping spring; 23 is the upper guide rail; 24 is the seat ring servo press; 25 is the lower guide rail; 26 is the seat ring pressing head; 27 is the first opposed fiber optic; 28 is the second opposed fiber optic; 29 is the guide post; 30 is the return spring; 31 is the cylinder head pressing block; 32 is the locking block; 33 is the pressing cylinder; 34 is the wedge plate. Detailed implementation manners

[0032] The following further describes the detailed implementation manners of the present utility model in conjunction with the accompanying drawings and specific embodiments:

[0033] As Figures 1 to 2 shown, this catheter seat ring pressing device includes a machine platform 1. An air inlet side driving mechanism and an air outlet side driving mechanism are arranged on the machine platform 1. The air inlet side sliding table 8 reciprocates horizontally on the air inlet side driving mechanism. A plurality of air inlet side loading tables 9 are fixedly arranged on the air inlet side sliding table 8. The air outlet side sliding table 10 reciprocates horizontally on the air outlet side driving mechanism. A plurality of air outlet side loading tables 11 are fixedly arranged on the air outlet side sliding table 10. An air inlet side pressing mechanism 12 is arranged on the machine platform 1 on the air inlet side driving mechanism, and an air outlet side pressing mechanism 13 is arranged on the machine platform 1 on the air outlet side driving mechanism.

[0034] As Figure 3 shown, preferably, the air inlet side driving mechanism or the air outlet side driving mechanism includes a servo motor 2 and a linear guide 6. The servo motor 2 rotates the ball screw 5 through a speed reducer 3 and a coupling 4. The ball screw 5 is arranged in parallel with the linear guide 6. A nut is sleeved on the ball screw 5. The nut is fixedly connected to the air inlet side sliding table 8 or the air outlet side sliding table 10 through a connecting block 7. The bottom of the air inlet side sliding table 8 or the air outlet side sliding table 10 is connected to the corresponding linear guide 6 through a slider to form a sliding connection.

[0035] As Figure 4 shown, preferably, the machine frame includes an upper support plate 14, a middle support plate 15 and a lower support plate 16. The upper support plate 14, the middle support plate 15 and the lower support plate 16 are fixedly connected through a plurality of support columns 17. The upper support plate 14 is located above the machine platform 1. The middle support plate 15 is fixedly arranged on the top surface of the machine platform 1. The lower support plate 16 is located below the machine platform 1. The support columns 17 penetrate through the machine platform 1.

[0036] As Figure 5 and 6As shown, preferably, the downward pressing assembly includes a first mounting plate installed on the upper support plate 14. A catheter servo press 18 is fixedly installed on the first mounting plate. A self-centering device 19 and a catheter pressing head 20 are sequentially installed on the downward pressing rod of the catheter servo press 18. The bottom end of the catheter pressing head 20 has a clamping rod 21. A clamping spring 22 is installed inside the clamping rod 21. The downward pressing rod is fixedly connected to the upper guide rail 23 through a mounting block. An upper guide block is fixedly installed on the upper support plate 14. The upper guide rail 23 is clamped to the upper guide block to form a sliding connection.

[0037] As Figures 1 to 2 As shown, preferably, the upward pushing assembly includes a second mounting plate installed on the lower support plate 16. A seat ring servo press 24 is fixedly installed on the second mounting plate. The upward pressing rod of the seat ring servo press 24 is fixedly connected to the lower guide rail 25 through a mounting block. A lower guide block is fixedly installed on the lower support plate 16. The lower guide rail 25 is clamped to the lower guide block to form a sliding connection. The top end of the lower guide rail 25 is fixedly connected to the seat ring pressing head 26 through a connecting seat. The catheter pressing head 20 and the seat ring pressing head 26 are arranged in a confrontation up and down.

[0038] As Figure 4 As shown, preferably, on both sides of the catheter pressing head 20 on the first mounting plate, opposed optical fibers 27 are arranged relatively. On both sides of the seat ring pressing head 26 on the second mounting plate, opposed optical fibers 28 are arranged relatively. Whether the catheter is installed in place is sensed by a set of opposed optical fibers 27, and whether the seat ring is installed in place is sensed by a set of opposed optical fibers 28, so as to ensure accurate catheter seat ring pressing operation on the cylinder head.

[0039] As Figure 4 As shown, preferably, the middle support plate 15 includes two left and right separated plate bodies. An installation gap is formed between the two separated plate bodies. The linear guide rail 6 and the intake side sliding table 8 / exhaust side sliding table 10 are arranged in the area of the installation gap. The machine table 1 is located in the area of the installation gap and a pressing window is opened corresponding to the seat ring pressing head 26. The middle support plate 15 is designed into a separated structure to provide a sliding table displacement space and a pressing operation space.

[0040] As Figure 4 As shown, preferably, the blanking component includes guide columns 29 erected on the top surface of the separated plate body. A return spring 30 is sleeved on the guide columns 29. A cylinder head pressing block 31 is slidably sleeved on the two guide columns 29. The cylinder head pressing block 31 is placed on the two return springs 30 to form an elastic support. A locking block 32 is arranged at the top end of the guide column 29. Pressing cylinders 33 are arranged on the outer sides of both ends of the cylinder head pressing block 31. The telescopic rod of the pressing cylinder 33 is fixedly connected to a wedge-shaped plate 34. The pointed end of the wedge-shaped plate 34 extends into the gap between the cylinder head pressing block 31 and the locking block 32.

[0041] When the intake loading table 9 or the exhaust loading table 11 moves directly below the cylinder head pressing block 31, the pressing cylinders 33 on both sides simultaneously extend the telescopic rods, causing more parts of the wedge plate 34 to enter between the cylinder head pressing block 31 and the locking block 32. Due to the inclined structure of the wedge plate 34, the gap between them increases, thereby pressing down the cylinder head pressing block 31 to press the cylinder head on the intake loading table 9 or the exhaust loading table 11. After the pressing is completed, the pressing cylinders 33 on both sides simultaneously retract the telescopic rods, causing most of the wedge plate 34 to be withdrawn from the gap between the cylinder head pressing block 31 and the locking block 32, and lifting the cylinder head pressing block 31 by the elastic force of the two return springs 30 to release the cylinder head.

[0042] As Figure 1 shown, preferably, the intake loading table 9 has an intake-side inclined tabletop, and the exhaust loading table 11 has an exhaust-side inclined tabletop. The inclined directions of the intake-side inclined tabletop and the exhaust-side inclined tabletop are opposite; the cylinder head pressing block 31 of the intake-side pressing mechanism 12 matches the inclined direction of the intake-side inclined tabletop, and the cylinder head pressing block 31 of the exhaust-side pressing mechanism 13 matches the inclined direction of the exhaust-side inclined tabletop. Through the inclined cooperation in different directions, the catheter seat ring pressing operations are respectively carried out on the intake side 12 and the exhaust side 13 of the cylinder head.

[0043] The operation mode of this catheter seat ring pressing equipment is as follows:

[0044] 1. Place the cylinder head on the intake loading table 9 of the intake-side sliding table 8 through the truss loading device;

[0045] 2. The servo motor 2 of the intake-side driving mechanism moves the intake-side sliding table 8 to transport the first group of cylinder heads to the pressing station;

[0046] 3. The pressing cylinders 33 on both sides simultaneously extend the wedge plate 34 to lower the cylinder head pressing block 31 to press the cylinder head on the intake loading table 9;

[0047] 4. Start the catheter servo press 18 to extend the catheter pressing head 20 downward to press the clamped catheter onto the cylinder head; start the seat ring servo press 24 to extend the seat ring pressing head 26 upward to press the seat ring onto the cylinder head;

[0048] 5. After the pressing of the first group of cylinder heads is completed, the pressing cylinders 33 on both sides simultaneously retract the wedge plate 34 to release the first group of cylinder heads, and the servo motor 2 of the intake-side driving mechanism moves the intake-side sliding table 8 to transport the second group of cylinder heads to the pressing station;

[0049] 6. Repeat steps 3 - 5 until the pressing operation of the eighth group of cylinder heads is completed;

[0050] 7. After the cylinder head is completed with the intake-side pressing, the intake-side driving mechanism 2 transports the cylinder head to the truss transfer device, and the truss transfer device transports the cylinder head to the exhaust loading table 11 of the exhaust-side sliding table 10;

[0051] 8. Adopt the same method as the press-fitting principle on the intake side to complete the press-fitting operations of the ducts and valve seats for the eight groups of cylinder heads on the exhaust side;

[0052] 9. After the press-fitting on the exhaust side of the cylinder head is completed, the drive mechanism on the exhaust side transports the cylinder head to the truss blanking device, and the truss blanking device places the cylinder head on the conveying line body.

[0053] Of course, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present utility model should also fall within the protection scope of the present utility model.

[0054] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A catheter seat ring press-fitting device, comprising a machine platform, an intake side drive mechanism and an exhaust side drive mechanism are arranged on the machine platform, an intake side slide table is reciprocated on the intake side drive mechanism, a plurality of intake material loading tables are fixed on the intake side slide table, an exhaust side slide table is reciprocated on the exhaust side drive mechanism, a plurality of exhaust material loading tables are fixed on the exhaust side slide table, characterized in that: The machine is provided with an air intake side pressing mechanism on the air intake side driving mechanism, and the machine is provided with an exhaust side pressing mechanism on the exhaust side driving mechanism. The air intake side pressing mechanism or the exhaust side pressing mechanism comprises a frame, and a downward pressing component located above the machine and an upper lifting component located below the machine are provided on the frame. A pressing component located above the machine is also provided on the frame, and the pressing component and the air intake loading platform or the exhaust loading platform clamp the product.

2. The catheter seat ring press-fitting device according to claim 1, characterized in that: The intake side drive mechanism or the exhaust side drive mechanism includes a servo motor and a linear guide rail. The servo motor rotates a ball screw through a reducer and a coupling. The ball screw is arranged in parallel with the linear guide rail. A nut is sleeved on the ball screw. The nut is fixedly connected to the intake side slide or the exhaust side slide through a connecting block. The bottom of the intake side slide or the exhaust side slide is clamped with the corresponding linear guide rail through a slider to form a sliding connection.

3. The catheter seat ring press-fitting device according to claim 2, characterized in that: The frame includes an upper support plate, a middle support plate and a lower support plate, wherein the upper support plate, the middle support plate and the lower support plate are fixedly connected by a plurality of support columns, the upper support plate is located above the platform, the middle support plate is fixed on the top surface of the platform, the lower support plate is located below the platform, and the support columns pass through the platform.

4. The catheter seat ring press-fitting device according to claim 3, characterized in that: The down-pressing assembly includes a mounting plate 1 mounted on the upper support plate, a catheter servo press is fixedly mounted on the mounting plate 1, a self-centering device and a catheter pressure head are sequentially mounted on the down-pressing rod of the catheter servo press, a clamping rod is provided at the bottom end of the catheter pressure head, a clamping spring is mounted in the clamping rod, the down-pressing rod is fixedly connected to an upper guide rail via a mounting block, an upper guide block is fixedly mounted on the upper support plate, and the upper guide rail is clamped to the upper guide block to form a sliding connection.

5. The catheter seat ring press-fitting device according to claim 4, characterized in that: The upper top assembly includes a second mounting plate installed on the lower support plate, a seat ring servo press is fixedly mounted on the second mounting plate, an upper pressure rod of the seat ring servo press is fixedly connected to a lower guide rail via a mounting block, a lower guide block is fixedly arranged on the lower support plate, the lower guide rail is clamped with the lower guide block to form a sliding connection, the top end of the lower guide rail is fixedly connected to a seat ring pressure head via a connecting seat, and the guide tube pressure head and the seat ring pressure head are arranged to confront each other up and down.

6. The catheter seat ring press-fitting device according to claim 5, characterized in that: The mounting plate 1 is provided with a first radiating optical fiber on both sides of the catheter pressure head, and the mounting plate 2 is provided with a second radiating optical fiber on both sides of the seat ring pressure head.

7. The catheter seat ring press-fitting device according to claim 5, characterized in that: The middle support plate includes two left and right separation plate bodies, and an installation gap is formed between the two separation plate bodies. The linear guide rail and the intake side slide / the exhaust side slide are arranged in the area of ​​the installation gap. The machine is located in the area of ​​the installation gap and opens a pressing window corresponding to the seat ring press head.

8. The catheter seat ring press-fitting device according to claim 7, characterized in that: The pressing assembly includes a guide column erected on the top surface of the separation plate body, a return spring is sleeved on the guide column, and a cylinder head clamping block is slidably sleeved on the two guide columns. The cylinder head clamping block is placed on two return springs to form an elastic support. A locking block is arranged on the top of the guide column, and a clamping cylinder is arranged on the outer sides of both ends of the cylinder head clamping block. The telescopic rod of the clamping cylinder is fixedly connected to a wedge plate, and the pointed end of the wedge plate extends into the gap between the cylinder head clamping block and the locking block.

9. The catheter seat ring press-fitting device according to claim 8, characterized in that: The intake loading platform has an intake side inclined surface, and the exhaust loading platform has an exhaust side inclined surface, and the intake side inclined surface is inclined in the opposite direction to the exhaust side inclined surface; the cylinder head pressing block of the intake side pressing mechanism matches the inclination direction of the intake side inclined surface, and the cylinder head pressing block of the exhaust side pressing mechanism matches the inclination direction of the exhaust side inclined surface.

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