CN-121424044-B - Mounting equipment for machining engine valve

Abstract

The invention discloses a mounting device for processing an engine valve, which relates to the technical field of engine valve assembly and comprises a main body frame, wherein a working table surface is arranged on the surface of the main body frame, a pressing module is arranged above the working table surface, an outer positioning component is arranged in the main body frame and is in moving fit with the pressing module, the outer positioning component is used for positioning an engine cylinder cover on the working table surface, an inner positioning component is arranged on the surface of the outer positioning component, and the inner positioning component is used for positioning an air valve piece on the engine cylinder cover, and can synchronously drive all connecting bases to move towards the engine cylinder cover through meshing transmission with a symmetrical linkage rack to cooperate with guiding constraint of a bearing support plate.

Inventors

• LI ZHUOHANG
• XIA KEYONG

Assignees

• 贵州省湄潭县德隆气门制造有限公司

Dates

Publication Date

20260508

Application Date

20251229

Claims (6)

1. 1. The mounting equipment for processing the engine valve is used for mounting a valve element (13) on an engine cylinder cover (12), and comprises a main body frame (1), wherein a working table (11) is arranged on the surface of the main body frame (1), and a pressing module (2) is assembled above the working table (11), and the mounting equipment is characterized in that an outer positioning assembly (3) is arranged in the main body frame (1), the outer positioning assembly (3) is in moving fit with the pressing module (2) and is used for positioning the engine cylinder cover (12) on the working table (11), an inner positioning assembly (4) is arranged on the surface of the outer positioning assembly (3), the inner positioning assembly (4) is used for positioning the valve element (13) on the engine cylinder cover (12), and stable positioning of the engine cylinder cover (12) and the valve element (13) before pressing is realized through double locking fit of the outer positioning assembly (3) and the inner positioning assembly (4); The outer positioning assembly (3) comprises a driving gear (31) assembled in the main body frame (1), a linkage rack (32) is connected to the outer wall of the driving gear (31) in a meshed mode, the whole linkage rack (32) is L-shaped, the short sides of the linkage rack (32) are attached to the outer part of the driving gear (31) in an initial state, connecting bases (33) are fixedly connected to the outer wall of the linkage rack (32), a bearing support plate (34) is connected to the inner wall of the main body frame (1) in a sliding mode, and the bearing support plate (34) is fixedly connected to the inner wall of the main body frame (1); the upper surface of the connecting base (33) is symmetrically provided with attaching conductors (35), the positions of the connecting base (33) corresponding to the attaching conductors (35) are provided with sliding grooves, connecting springs (36) are assembled in the sliding grooves, and two ends of each connecting spring (36) are respectively kept in a fixed state with the attaching conductors (35) and the connecting base (33); The internal positioning assembly (4) comprises a miniature motor (41) arranged in the main body frame (1), the output end of the miniature motor (41) is fixedly connected with a connecting shaft body (42), a plurality of sections of bidirectional threads (43) are formed in the outer wall of the connecting shaft body (42), nut collars (44) are connected to the outer parts of the bidirectional threads (43) in a threaded manner, and a ball screw structure is formed between the bidirectional threads (43) and the nut collars (44); The outer wall of nut lantern ring (44) is equal fixedly connected with adjusting pad (45), every two adjusting pad (45) are a set of, every group all install supporting pad (46) between adjusting pad (45), supporting pad (46) rotate and connect in the outer wall of connecting axle body (42), just the outside of connecting axle body (42) is equipped with and bears frame (47), bear frame (47) and connecting base (33) in outer locating component (3) keep fixed connection.
2. 2. The mounting device for processing an engine valve according to claim 1, wherein the working table (11) is used for bearing an engine cylinder cover (12), a mounting groove body matched with a valve piece (13) is formed in the surface of the engine cylinder cover (12), the valve piece (13) is correspondingly assembled in the groove body, and after positioning is finished, press fitting is finished through the pressing module (2).
3. 3. A mounting apparatus for processing an engine valve according to claim 1, wherein the press-fit module (2) is configured to provide a press-fit driving force to the valve member (13), and the outer positioning assembly (3) moves in opposite directions when the press-fit module (2) moves downward to position the engine head (12), and the inner positioning assembly (4) is activated and positions the shaft portion of the valve member (13) as the press-fit module (2) continues to move downward.
4. 4. The mounting device for processing engine valves according to claim 1, wherein when the driving gear (31) keeps 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) for driving the attaching conductor (35) to approach the engine cylinder cover (12), and rubber cushions are fixedly connected to the outer walls of the attaching conductor (35).
5. 5. A mounting apparatus for processing an engine valve according to claim 1, wherein said connecting spring (36) is in a compressed state in an initial state, and said connecting spring (36) is capable of buffering the fitting impact force by elastic deformation when said fitting conductor (35) is in contact with the side wall of the engine cylinder head (12), and simultaneously capable of holding the fitting conductor (35) in close fitting contact with the engine cylinder head (12) in accordance with the flat state of the side wall of the engine cylinder head (12).
6. 6. The mounting device for processing engine valves according to claim 1, wherein the micro motor (41) is started to drive the connecting shaft body (42) to rotate, the nut collar (44) is driven to move oppositely along the axial direction of the connecting shaft body (42) through the threaded cooperation of the bidirectional threads (43) and the nut collar (44), and the adjusting pad (45) can be attached to the shaft body part of the valve piece (13) when moving oppositely along with the nut collar (44), and can be matched with the shaft body sizes of the valve pieces (13) with different specifications through the cooperation of the adjusting pad and the supporting pad (46).

Description

Mounting equipment for machining engine valve Technical Field The invention relates to the technical field of engine valve assembly, in particular to mounting equipment for processing an engine valve. Background The engine valve mounting equipment is used in the production field of power equipment such as automobiles, engineering machinery and the like, is core special equipment for accurately assembling a valve body to an engine cylinder cover, has the core functions of providing stable pressure through a press mounting mechanism, attaching and fixing a valve and a cylinder cover valve mounting Kong Jingzhun, directly determining valve movement precision, sealing performance, power output and energy consumption control of the whole engine, is widely applied to an engine assembly line, is suitable for mass production scenes of various engines such as passenger cars, commercial vehicles, agricultural machinery and the like, develops towards high-precision and high-efficiency directions along with engine manufacture, has increasingly strict requirements on coaxiality and mounting depth consistency of valve mounting in the market, has positioning precision as core guarantee of press mounting quality, becomes a key index for measuring the performance of the equipment, and also promotes equipment to evolve towards the direction of positioning precision and operation convenience. At present, in the technical field of engine valve installation equipment, the existing product still has obvious positioning technology bottleneck, part of traditional equipment only focuses on single positioning of a cylinder cover, the displacement of the cylinder cover is limited by stopping a conveying line, fixing a positioning pin and other modes, but the valve body is not positioned in a targeted mode, when a worker manually places the valve, the problems of inclination, axial deviation and the like of the valve are inevitably avoided, the coaxiality deviation of the valve and an installation hole is caused when the valve is pressed, and further faults such as loose valve sealing and aggravation of abrasion are caused, and the other equipment tries to position the valve, but adopts an independent positioning mechanism, and a positioning program is required to be additionally started after the cylinder cover is positioned, so that the working procedure time is prolonged, the positioning mechanism and the pressing mechanism are in lack of linkage, the positioning is inaccurate due to mechanism interference or time sequence error, and the efficient production requirement of the assembly line cannot be adapted. Therefore, developing engine valve mounting equipment which has dual accurate positioning of a cylinder cover and a valve and is efficiently linked with a press mounting process becomes a key technical problem to be broken through in the field. The prior art still has the following defects when being used specifically: the positioning is single and the precision is insufficient, the traditional equipment only positions the cylinder cover, the problems of inclination, offset and the like of the valve caused by manual placement are ignored, the valve and the axis of the mounting hole are easy to deviate during press mounting, the assembly precision and the sealing performance are affected, and even if part of equipment is provided with a valve positioning structure, the valve positioning structure is in a fixed form, the positioning requirement of valves with different specifications cannot be adapted, and the universality is poor. The positioning and press mounting cooperativity is poor, the existing valve positioning is mostly an independent process, the positioning operation is required to be independently started after the cylinder cover is positioned and the valve is placed, the assembly period of a single product is prolonged, the production efficiency is reduced, and when the valve is switched to the press mounting process after the positioning is finished, the valve is possibly offset again due to the factors of mechanism resetting, vibration and the like, and the positioning effect is unstable. The operation dependence is strong, in order to make up the defect of insufficient positioning, the operation proficiency requirement of the existing equipment on staff is extremely high, the valve position needs to be manually and repeatedly adjusted to ensure approximate alignment, the manual labor intensity is increased, the consistency of the installation precision of different batches of products is poor due to manual operation errors, and the reject ratio is difficult to effectively control. The positioning stability is not enough, the positioning structure of part of equipment adopts a rigid contact design, the buffering and self-adaptive adjusting capability is not available, the surface of a cylinder cover is easy to be pressed when the positioning structure is positioned, or the positioning laminating degree is influenc