An installation device for machining engine valves

Abstract

The application discloses a mounting device for machining engine valves and relates to the technical field of engine valve assembly, which comprises a main body frame, the surface of the main body frame is provided with a workbench, the upper portion of the workbench is provided with a pressing module, the inside of the main body frame is provided with an outer positioning assembly, the outer positioning assembly is in motion cooperation with the pressing module, is used for positioning the engine cylinder cover on the workbench, the surface of the outer positioning assembly is provided with an inner positioning assembly, the inner positioning assembly is used for positioning the valve on the engine cylinder cover, through meshing transmission with the symmetrical linkage rack, all the connecting bases can be synchronously driven to move to the direction of the engine cylinder cover, the guiding constraint of the bearing support plate is matched, meanwhile, the frame is in motion cooperation with the pressing module, the control logic of the device is simplified, the smoothness of process connection is improved, the positioning process of the engine cylinder cover is more efficient and more reliable.

Description

Technical Field

[0001] This invention relates to the field of engine valve assembly technology, specifically to an installation device for processing engine valves. Background Technology

[0002] Engine valve installation equipment is a core specialized device used in the production of power equipment such as automobiles and construction machinery to precisely assemble valve bodies onto engine cylinder heads. Its core function is to provide stable pressure through a press-fitting mechanism to precisely fit and fix the valve to the valve mounting holes in the cylinder head. This directly determines the valve's movement accuracy, sealing performance, and the engine's overall power output and energy consumption control. It is widely used in engine assembly lines and is suitable for mass production scenarios of various engines such as passenger cars, commercial vehicles, and agricultural machinery. As engine manufacturing develops towards higher precision and higher efficiency, the market has increasingly stringent requirements for the coaxiality and consistency of valve installation depth. Positioning accuracy, as the core guarantee of press-fitting quality, has become a key indicator for measuring the performance of this type of equipment, and is also driving the equipment to evolve towards "precise positioning and convenient operation".

[0003] Currently, in the field of engine valve installation equipment, existing products still face significant positioning technology bottlenecks. Some traditional equipment focuses solely on positioning the cylinder head, limiting cylinder head displacement through conveyor line stops and positioning pins, but fails to specifically position the valve body. When workers manually place the valves, issues such as valve tilting and axis misalignment inevitably occur, leading to misalignment between the valve and mounting hole during press-fitting, resulting in valve sealing defects and accelerated wear. Another type of equipment attempts to position the valves, but often uses independent positioning mechanisms, requiring an additional positioning process after cylinder head positioning. This not only increases process time but also lacks linkage between the positioning and pressing mechanisms, making inaccurate positioning prone to interference or timing errors, thus failing to meet the demands of efficient assembly line production. Therefore, developing engine valve installation equipment that achieves precise positioning of both the cylinder head and valves and is efficiently linked with the pressing process has become a critical technical challenge urgently needing to be overcome in this field.

[0004] The existing technology still has the following drawbacks in practical applications:

[0005] Single positioning and insufficient precision: Traditional equipment only positions the cylinder head, ignoring the posture correction after valve placement. Problems such as valve tilting and offset caused by manual placement cannot be corrected. During press-fitting, the valve and the mounting hole axis are prone to deviation, affecting assembly accuracy and sealing performance. Even if some equipment has a valve positioning structure, it is mostly fixed and cannot adapt to the positioning requirements of different valve specifications, resulting in poor versatility.

[0006] Poor coordination between positioning and pressing: Existing valve positioning is mostly an independent process, which requires starting the positioning operation separately after cylinder head positioning and valve placement. This not only prolongs the assembly cycle of a single product and reduces production efficiency, but also when switching to the pressing process after positioning, the valve may shift again due to factors such as mechanism reset and vibration, resulting in unstable positioning effect.

[0007] High operational dependence: To compensate for the lack of positioning, the existing equipment requires a high level of operator proficiency. The valve position needs to be manually adjusted repeatedly to ensure approximate alignment. This not only increases the labor intensity of manual labor, but also leads to poor consistency in installation accuracy between different batches of products due to human error, making it difficult to effectively control the failure rate.

[0008] Insufficient positioning stability: The positioning structure of some equipment adopts a rigid contact design, which lacks buffering and adaptive adjustment capabilities. During positioning, it is easy to cause indentations on the cylinder head surface, or impurities such as oil stains and iron filings on the valve surface may affect the positioning fit, further reducing the reliability of positioning accuracy.

[0009] Therefore, in view of this, the present invention proposes an installation device for processing engine valves to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0010] To solve the above-mentioned technical problems, the present invention provides an installation device for processing engine valves, thereby solving the technical problems mentioned in the background art.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an installation device for processing engine valves, used to install valve components onto an engine cylinder head, comprising a main frame, a worktable surface provided on the surface of the main frame, a pressing module mounted above the worktable surface, an external positioning component provided inside the main frame, the external positioning component maintaining a moving fit with the pressing module, used to position the engine cylinder head on the worktable surface, an internal positioning component provided on the surface of the external positioning component, the internal positioning component used to position the valve components on the engine cylinder head, and through the double locking fit of the external positioning component and the internal positioning component, stable positioning of the engine cylinder head and valve components is achieved before pressing.

[0012] Furthermore, the worktable is used to support the engine cylinder head, and the surface of the engine cylinder head is provided with a mounting groove adapted to the valve component. The valve component is correspondingly assembled inside the groove, and after positioning, the pressing is completed by the pressing module.

[0013] Furthermore, the pressing module is used to provide pressing driving force to the valve component. When the pressing module moves downward, the outer positioning component moves in the opposite direction to achieve positioning of the engine cylinder head. As the pressing module continues to move downward, the inner positioning component is activated and positions the shaft part of the valve component.

[0014] Furthermore, the external positioning component includes a drive gear assembled inside the main frame. The outer wall of the drive gear is meshed with a linkage rack. The linkage rack is generally L-shaped. In the initial state, the short side of the linkage rack is attached to the outside of the drive gear. The outer wall of the linkage rack is fixedly connected to a connecting base. The connecting base is slidably connected to a bearing plate. The bearing plate is fixedly connected to the inner wall of the main frame.

[0015] Furthermore, when the drive gear continues to rotate, the connecting base moves along the surface of the bearing support plate through the meshing transmission of the external linkage rack, which drives the bonding conductor to move closer to the engine cylinder head, and the outer wall of the bonding conductor is fixedly connected with rubber pads.

[0016] Furthermore, the upper surface of the connecting base is symmetrically equipped with bonding conductors, and the connecting base is provided with a sliding groove at the position corresponding to the bonding conductor. A connecting spring is installed inside the sliding groove, and the two ends of the connecting spring are respectively fixed to the bonding conductor and the connecting base.

[0017] Furthermore, in the initial state, the connecting spring is in a compressed state. When the contact conductor comes into contact with the side wall of the engine cylinder head, the connecting spring can buffer the contact impact force through elastic deformation. At the same time, depending on the flatness of the side wall of the engine cylinder head, the contact conductor can be kept in close contact with the engine cylinder head.

[0018] Furthermore, the internal positioning component includes a micro motor installed inside the main frame. The output end of the micro motor is fixedly connected to a connecting shaft. The outer wall of the connecting shaft has multiple bidirectional threads, and each bidirectional thread is threaded with a nut collar.

[0019] Furthermore, each of the outer walls of the nut collar is fixedly connected with an adjusting pad, and every two adjusting pads form a group. A support pad is installed between each group of adjusting pads. The support pad is rotatably connected to the outer wall of the connecting shaft. The connecting shaft is externally fitted with a bearing frame, and the bearing frame is fixedly connected to the connecting base in the external positioning assembly.

[0020] Furthermore, after the micro motor is started, it drives the connecting shaft to rotate. Through the threaded engagement of the bidirectional thread with the nut collar, it drives the nut collar to move in opposite directions along the axial direction of the connecting shaft. When the adjusting pad moves in opposite directions with the nut collar, it can fit the shaft part of the valve component. Through the cooperation with the intermediate adjusting pad, it can adapt to the shaft size of valve components of different specifications.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) The external positioning component of this device adopts a linkage integral frame design. The frame uses the drive gear as the core power source. Through the meshing transmission with the symmetrical linkage rack, it can synchronously drive all the connecting bases to move towards the engine cylinder head. With the guidance constraint of the bearing support plate, it ensures that the action rhythm of each positioning component is completely consistent, avoiding the problem of action delay and positioning asynchrony that is easy to occur in the traditional decentralized positioning structure. At the same time, the frame maintains motion coordination with the pressing module, which simplifies the control logic of the equipment and improves the smoothness of process connection, making the positioning process of the engine cylinder head more efficient and reliable.

[0023] In practical applications, the L-shaped linkage rack combines the advantages of transmission stability and space utilization efficiency. Its short side, designed to fit snugly against the outer wall of the drive gear, increases the meshing contact area between the rack and gear, improving the uniformity of force distribution during transmission, reducing tooth wear, and extending component lifespan. The long side provides a stable mounting platform for the connecting base, allowing it to be installed closer to the engine cylinder head, shortening the travel of the positioning component, and improving positioning response speed. Simultaneously, the L-shaped structure adapts to the internal space layout of the main frame, achieving efficient power transmission within limited frame space, avoiding interference between the rack and other components, and making the overall structure of the external positioning assembly more compact and rational.

[0024] When the contact conductor contacts the cylinder head sidewall, the connecting spring, initially compressed within the connecting base groove, elastically relaxes. This design achieves "flexible adaptation" in the positioning process. The spring's relaxation not only buffers the instantaneous impact force when the contact conductor contacts the cylinder head, preventing scratches, deformation, and other damage to the cylinder head sidewall caused by rigid contact, but also ensures a tight fit between the contact conductor and the cylinder head sidewall through the spring's rebound force. Even with slight unevenness or dimensional deviations in the cylinder head sidewall, the spring's elastic deformation can adaptively adjust the position of the contact conductor, ensuring effective contact between each contact conductor and the cylinder head sidewall. This achieves a circumferentially uniform force distribution positioning effect, improving the adaptability and reliability of the positioning.

[0025] (2) The internal positioning component adopts an integral frame with a micro motor as the power source and a bidirectional thread as the transmission core. The frame drives the connecting shaft to rotate through the micro motor. By utilizing the threaded engagement of the bidirectional thread and the nut collar, multiple sets of adjusting pads can be moved in opposite directions simultaneously, realizing the simultaneous positioning of multiple valve components. This avoids the cumbersome operation required by traditional single positioning structures. At the same time, the frame is fixedly connected to the connecting base of the external positioning component, and can move closer to the valve component synchronously with the movement of the external positioning component, shortening the action distance of the internal positioning component and improving the positioning efficiency. Moreover, the modular design of the frame facilitates later maintenance and replacement, reducing the maintenance cost of the equipment.

[0026] The support pads between each set of adjusting pads are rotatably connected to the outer wall of the connecting shaft. Their own support significantly improves the adaptability and stability of the internal positioning assembly. The support pads can adaptively adjust their angle as the adjusting pads move. They can provide auxiliary support when the adjusting pads are in contact with the valve shaft, enhancing the tightness of the fit between the adjusting pads and the shaft. They can also adapt to valve shafts of different diameters through their own elastic structure. When the shaft diameter is large, the support pads will be compressed to fit the size; when the shaft diameter is small, the support pads will expand to fill the gap, ensuring that the adjusting pads always maintain effective contact with the shaft. This design allows the equipment to adapt to various specifications of valves without changing the positioning components, improving the versatility of the equipment. At the same time, it avoids the problem of shaft deformation caused by excessive positioning, ensuring the processing quality of the valves. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the initial state of the main three-dimensional structure of the present invention;

[0028] Figure 2 This is a front-view three-dimensional structural diagram of the present invention in its working state;

[0029] Figure 3 This is a three-dimensional structural diagram illustrating the positional relationship between the engine cylinder head and the engine valves according to the present invention.

[0030] Figure 4 This is a three-dimensional structural diagram of the external positioning component of the present invention;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting base of the present invention;

[0032] Figure 6 This is a schematic diagram of the planar structure showing the positional relationship of the internal positioning components of the present invention;

[0033] Figure 7 This is a three-dimensional structural diagram of the internal positioning component of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the drive gear of the present invention;

[0035] Figure 9 For the present invention Figure 8 A magnified three-dimensional structural diagram of part A in the middle;

[0036] Figure 10 This is a schematic diagram of the three-dimensional structure of the connecting shaft of the present invention.

[0037] The components in the diagram are labeled as follows: 1. Main frame; 11. Worktable; 12. Engine cylinder head; 13. Valve components; 2. Pressing module; 3. External positioning assembly; 31. Drive gear; 32. Linkage rack; 33. Connecting base; 34. Bearing support plate; 35. Contact conductor; 36. Connecting spring; 4. Internal positioning assembly; 41. Micro motor; 42. Connecting shaft; 43. Bidirectional thread; 44. Nut collar; 45. Adjusting pad; 46. Support pad; 47. Bearing frame. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that the main frame 1, worktable 11, engine cylinder head 12, valve components 13, and pressing module 2 in this equipment are designed only according to existing technical functions: the main frame 1 provides overall installation and load-bearing function, and realizes the fixed assembly of each component through a frame structure, providing stable support for equipment operation; the worktable 11 provides component placement and operation function, and supports the engine cylinder head 12, valve components 13, and other processed parts through a planar structure, providing an operating area for the pressing assembly process; the engine cylinder head 12 provides valve installation and adaptation function, and realizes the corresponding assembly of valve components 13 through preset valve installation holes; the valve components 13 provide engine valve distribution function, and realize the control of engine intake and exhaust through their own structure and cooperation with the engine cylinder head 12; the pressing module 2 provides pressing assembly function, and presses the valve components 13 into the corresponding installation holes of the engine cylinder head 12 through the output pressure of the drive structure, completing the assembly and fixation of the two.

[0040] The conventional functions of the aforementioned components, such as the load-bearing and support characteristics of the main frame 1, the operation and placement characteristics of the worktable 11, the valve adaptation characteristics of the engine cylinder head 12, the valve distribution control characteristics of the valve component 13, and the pressing and assembly characteristics of the pressing module 2; as well as the specific structures, such as the frame shape and size parameters of the main frame 1, the planar specifications and installation method of the worktable 11, the hole layout and matching models of the engine cylinder head 12, the structural form and specification parameters of the valve component 13, and the driving method and pressure output range of the pressing module 2, are all existing technologies. Given the universality of these structures and the fact that no separate improvements are needed, they will not be described in detail here. Example

[0041] Please refer to Figure 1 - Figure 6 As shown, an installation device for processing engine valves is used to install valve components 13 onto an engine cylinder head 12. It includes a main frame 1, a worktable 11 on the surface of the main frame 1, a pressing module 2 mounted above the worktable 11, an external positioning component 3 inside the main frame 1, which moves in coordination with the pressing module 2 to position the engine cylinder head 12 on the worktable 11, and an internal positioning component 4 on the surface of the external positioning component 3 to position the valve components 13 on the engine cylinder head 12. Through the double locking engagement of the external positioning component 3 and the internal positioning component 4, stable positioning of the engine cylinder head 12 and valve components 13 is achieved before pressing.

[0042] It should be noted that the worktable 11 is used to support the engine cylinder head 12. The surface of the engine cylinder head 12 is provided with a mounting groove that is compatible with the valve component 13. The valve component 13 is correspondingly assembled inside the groove. After positioning, the pressing module 2 is used to complete the pressing. The pressing module 2 is used to provide pressing driving force to the valve component 13. When the pressing module 2 moves downward, the outer positioning component 3 moves in the opposite direction to realize the positioning of the engine cylinder head 12. As the pressing module 2 continues to move downward, the inner positioning component 4 is activated and positions the shaft part of the valve component 13.

[0043] Please refer to Figure 4 - Figure 9As shown, the external positioning assembly 3 includes a drive gear 31 assembled inside the main frame 1. A linkage rack 32 is meshed with the outer wall of the drive gear 31. The linkage rack 32 is L-shaped. In the initial state, the short side of the linkage rack 32 is attached to the outside of the drive gear 31. A connecting base 33 is fixedly connected to the outer wall of the linkage rack 32. A bearing support plate 34 is slidably connected inside the connecting base 33. The bearing support plate 34 is fixedly connected to the inner wall of the main frame 1. When the drive gear 31 rotates, the meshing transmission of the external linkage rack 32 drives the connecting base 33 to move along the surface of the bearing support plate 34, thereby driving the contact conductor 35 towards the engine cylinder head 12. The outer walls of the contact conductors 35 are fixedly connected with rubber pads, and the contact conductors 35 are symmetrically installed on the upper surface of the connecting base 33. The connecting base 33 has a groove at the position corresponding to the contact conductor 35. The groove is equipped with a connecting spring 36, and the two ends of the connecting spring 36 are fixed to the contact conductor 35 and the connecting base 33 respectively. In the initial state, the connecting spring 36 is in a compressed state. When the contact conductor 35 contacts the side wall of the engine cylinder head 12, the connecting spring 36 can buffer the contact impact force through elastic deformation. At the same time, it can keep the contact conductor 35 and the engine cylinder head 12 in close contact according to the flatness of the side wall of the engine cylinder head 12.

[0044] Please refer to Figure 6 - Figure 10 As shown, the internal positioning component 4 includes a micro motor 41 installed inside the main frame 1. The output end of the micro motor 41 is fixedly connected to a connecting shaft 42. The outer wall of the connecting shaft 42 has multiple bidirectional threads 43. Each bidirectional thread 43 is threaded with a nut collar 44. Each nut collar 44 has an adjusting pad 45 fixedly connected to its outer wall. Every two adjusting pads 45 form a group. A support pad 46 is installed between each group of adjusting pads 45. The support pad 46 is rotatably connected to the outer wall of the connecting shaft 42. The external assembly of 42 is fitted with a support frame 47, which is fixedly connected to the connecting base 33 in the external positioning assembly 3. After the micro motor 41 is started, it drives the connecting shaft 42 to rotate. Through the threaded engagement of the bidirectional thread 43 and the nut collar 44, the nut collar 44 is driven to move in opposite directions along the axial direction of the connecting shaft 42. When the adjusting pad 45 moves in opposite directions with the nut collar 44, it can fit the shaft part of the valve component 13. Through the cooperation with the intermediate adjusting pad 45, it can adapt to the shaft size of valve components 13 of different specifications.

[0045] Specifically, the engine cylinder head 12 is first transported to the worktable 11 on the surface of the main frame 1, ensuring that the bottom surface of the engine cylinder head 12 is completely flush with the plane of the worktable 11, while aligning the pre-set valve mounting grooves on its surface upwards with the action path of the subsequent pressing module 2; then, the valve pieces 13 are placed one by one into the mounting grooves of the engine cylinder head 12, so that the bottom of the valve pieces 13 is initially embedded in the grooves, completing the pre-assembly before pressing. The planar structure of the worktable 11 can stably support the weight of the engine cylinder head 12, preventing it from tilting in subsequent processes, and can also reduce wear on the bottom of the cylinder head through the flat contact surface.

[0046] When the equipment enters the pressing stage, the pressing module 2 begins to move downwards along a preset vertical path. During the pressing process, the external positioning component 3 operates in conjunction: the drive mechanism inside the main frame 1 drives the drive gear 31 to rotate. Since the drive gear 31 meshes with the L-shaped linkage rack 32, the rotational force of the drive gear 31 is converted into the linear driving force of the linkage rack 32, causing the linkage rack 32 to move along its own extension direction. This, in turn, drives the connecting base 33 fixed on its outer wall to slide along the surface of the bearing support plate 34. The bearing support plate 34 is fixed on... The inner wall of the main frame 1 provides a stable sliding guide for the connecting base 33. As the connecting base 33 moves closer to the engine cylinder head 12, the contact conductor 35 installed on the upper surface of the connecting base 33 also gradually approaches the side wall of the engine cylinder head 12. When the contact conductor 35 contacts the side wall of the cylinder head, the connecting spring 36, which is initially compressed in the groove of the connecting base 33, will elastically relax. This not only buffers the impact force when the contact conductor 35 contacts the cylinder head, preventing scratches or deformation on the side wall of the cylinder head, but also allows the contact conductor 35 to fit tightly against the side wall of the cylinder head through the spring's rebound force.

[0047] Even if there is slight unevenness on the side wall of the engine cylinder head 12, the deformation of the connecting spring 36 can adaptively adjust the position of the contact conductor 35 to ensure that all contact conductors 35 maintain effective contact with the side wall of the cylinder head, and finally complete the external positioning of the engine cylinder head 12. During this process, the meshing transmission of the drive gear 31 and the linkage rack 32 ensures the synchronicity of the movement of multiple connecting bases 33, so that the circumferential force of the engine cylinder head 12 is uniform, further improving the stability of positioning.

[0048] As the pressing module 2 continues to move downward to the preset trigger position, the internal positioning component 4 will start running synchronously: the micro motor 41 inside the main frame 1 receives the signal and starts to rotate, and its output end drives the connecting shaft 42 to rotate at a stable speed. Since the outer wall of the connecting shaft 42 has multiple bidirectional threads 43, and the bidirectional threads 43 and the nut collar 44 form a ball screw structure, the rotation of the connecting shaft 42 will be converted into the axial movement force of the nut collar 44, so that the two nut collars 44 on the same set of bidirectional threads 43 move in opposite directions along the connecting shaft 42.

[0049] As the nut collar 44 moves, the adjusting pad 45 fixed on its outer wall will gradually approach the shaft of the valve piece 13, eventually fitting against the shaft surface below the valve piece 13. At the same time, the support pad 46 between each set of adjusting pads 45 is rotatably connected to the outer wall of the connecting shaft 42. Through its own support, it will adapt to the shaft diameter of different valve pieces 13 in conjunction with the adjusting pad 45. When the shaft of the valve piece 13 is thicker, the adjusting pad 45 will compress the elastic structure of the support pad 46, so that the support pad 46 fits the shaft size, ensuring that the adjusting pad 45 is always tightly fitted to the shaft, thus completing the internal positioning of the valve piece 13.

[0050] At this time, the circumferential constraint of the outer positioning component 3 on the engine cylinder head 12 and the radial constraint of the inner positioning component 4 on the valve member 13 shaft form a double lock, completely fixing the relative position of the engine cylinder head 12 and the valve member 13. Then, the pressing module 2 continues to output a stable pressing driving force downward, and presses the valve member 13 stably into the mounting groove of the engine cylinder head 12, completing the entire valve installation process. The bidirectional thread 43 of the inner positioning component 4 cooperates with the adjusting shim 45, which not only achieves accurate positioning of the valve member 13, but also allows the equipment to adapt to valve members 13 of different specifications, improving the versatility of the equipment.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation device for processing engine valves, for installing valve components (13) onto an engine cylinder head (12), comprising a main frame (1), wherein a worktable (11) is provided on the surface of the main frame (1), and a pressing module (2) is mounted above the worktable (11), characterized in that: The main frame (1) is provided with an external positioning component (3) inside. The external positioning component (3) is in motion cooperation with the pressing module (2) and is used to position the engine cylinder head (12) on the worktable (11). The surface of the external positioning component (3) is provided with an internal positioning component (4). The internal positioning component (4) is used to position the valve component (13) on the engine cylinder head (12). Through the double locking cooperation of the external positioning component (3) and the internal positioning component (4), the engine cylinder head (12) and the valve component (13) are stably positioned before pressing. The external positioning component (3) includes a drive gear (31) assembled inside the main frame (1). The outer wall of the drive gear (31) is meshed with a linkage rack (32). The linkage rack (32) is L-shaped. In the initial state, the short side of the linkage rack (32) is attached to the outside of the drive gear (31). The outer wall of the linkage rack (32) is fixedly connected to a connecting base (33). The connecting base (33) is slidably connected to a bearing support plate (34). The bearing support plate (34) is fixedly connected to the inner wall of the main frame (1). The upper surface of the connecting base (33) is symmetrically equipped with a bonding conductor (35). The connecting base (33) is provided with a sliding groove at the position corresponding to the bonding conductor (35). A connecting spring (36) is installed inside the sliding groove, and the two ends of the connecting spring (36) are fixed to the bonding conductor (35) and the connecting base (33) respectively. The internal positioning component (4) includes a micro motor (41) installed inside the main frame (1). The output end of the micro motor (41) is fixedly connected to a connecting shaft (42). The outer wall of the connecting shaft (42) is provided with multiple bidirectional threads (43). The outer side of each bidirectional thread (43) is threaded with a nut collar (44), and the bidirectional thread (43) and the nut collar (44) form a ball screw structure. Adjusting pads (45) are fixedly connected to the outer wall of each nut collar (44). Each pair of adjusting pads (45) forms a group. A support pad (46) is installed between each group of adjusting pads (45). The support pad (46) is rotatably connected to the outer wall of the connecting shaft (42). A bearing frame (47) is assembled on the outside of the connecting shaft (42). The bearing frame (47) is fixedly connected to the connecting base (33) in the external positioning assembly (3).

2. The mounting equipment for processing engine valves according to claim 1, characterized in that: The worktable (11) is used to support the engine cylinder head (12). The surface of the engine cylinder head (12) is provided with an installation groove that is compatible with the valve component (13). The valve component (13) is installed in the groove. After positioning, the pressing is completed by the pressing module (2).

3. The mounting equipment for processing engine valves according to claim 1, characterized in that: The pressing module (2) is used to provide pressing driving force to the valve (13). When the pressing module (2) moves downward, the outer positioning component (3) moves in the opposite direction to achieve positioning of the engine cylinder head (12). As the pressing module (2) continues to move downward, the inner positioning component (4) is activated and positions the shaft part of the valve (13).

4. The mounting equipment for processing engine valves according to claim 1, characterized in that: When the drive gear (31) is rotating, the connecting base (33) is driven to move along the surface of the bearing support plate (34) through the meshing transmission of the external linkage rack (32), which is used to drive the bonding conductor (35) to move closer to the engine cylinder head (12), and the outer wall of the bonding conductor (35) is fixedly connected with rubber pads.

5. The mounting device for processing engine valves according to claim 1, characterized in that: In the initial state, the connecting spring (36) is in a compressed state. When the contact conductor (35) contacts the side wall of the engine cylinder head (12), the connecting spring (36) can buffer the contact impact force through elastic deformation. At the same time, according to the flatness of the side wall of the engine cylinder head (12), the contact conductor (35) can keep the engine cylinder head (12) in close contact.

6. The mounting device for machining engine valves according to claim 1, characterized in that: After the micro motor (41) is started, it drives the connecting shaft (42) to rotate. Through the threaded engagement of the bidirectional thread (43) and the nut collar (44), the nut collar (44) is driven to move in opposite directions along the axial direction of the connecting shaft (42). When the adjusting pad (45) moves in opposite directions with the nut collar (44), it can fit the shaft part of the valve component (13). Through the cooperation with the support pad (46), it can be adapted to the shaft size of valve components (13) of different specifications.

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