Engine cylinder cover valve collet assembling auxiliary device and using method

Abstract

The invention discloses an auxiliary device for assembling an engine cylinder cover valve collet. The auxiliary device comprises a roller way, a cylinder cover positioning device installed on the roller way and a power mechanism for driving a press-fitting plate to move up and down. The power mechanism comprises an oil cylinder and is characterized by further comprising an oil cylinder rod mounting plate, the oil cylinder rod mounting plate is mounted below the roller way, the middle of the oil cylinder rod mounting plate is connected with the end of an oil cylinder rod of the oil cylinder, and guide rods are fixedly mounted at the two ends of the oil cylinder rod mounting plate respectively; longitudinal frames are fixedly mounted at the upper ends of the guide rods; the press-fitting plate is located above the roller way, and the two ends of the press-fitting plate are connected to the longitudinal frame. The press-fitting plate is further provided with a transverse middle long groove extending in the length direction of the press-fitting plate, a plurality of longitudinal grooves which are longitudinally arranged and intersect with the middle long groove, and a plurality of transverse grooves which are transversely arranged. The press-fitting device has the advantages of being compact in structure, high in working efficiency, capable of adapting to installation of various valve lock clamps without replacing the press-fitting plate and the like.

Description

Technical Field

[0001] The invention relates to the technical field of engine assembly, and in particular to an engine cylinder head valve lock clip assembly auxiliary device and a use method thereof. Background Art

[0002] At present, when the engine cylinder head valve lock clip is assembled on the assembly line, due to the existence of multiple models and varieties, it is extremely difficult to press-fit multiple models and varieties of cylinder head valve lock clips on the same equipment. It is difficult to adapt to the press-fitting of multiple models and varieties of cylinder head valve lock clips on the same equipment. Therefore, it is urgent to design a structure and method for quickly replacing the cylinder head valve lock clip to solve the problem of the same equipment adapting to the press-fitting of multiple models and varieties of cylinder head valve lock clips.

[0003] The existing patent document CN117020618A discloses an assembly tooling assembly for an engine valve lock clamp, which includes two categories: a dual-valve press-fit plate and a multi-valve press-fit plate. Each category includes a variety of specifications to meet the assembly requirements of valve lock clamps of multiple models and varieties. The cylinder head valve lock clamp press-fit plate uses an inserted card plate. The left and right card slots of the right card plate and the left card plate have openings on one side. Only two bolts are used to lock, which is convenient for replacing different cylinder head valve lock clamp press-fit plates. It can be seen that the solution provided by this patent document is mainly to prevent overpressure from damaging the valve oil seal, and the press-fit plate cannot adapt to the simultaneous installation of the valve and multi-valve lock clamps. The specified press-fit plate needs to be replaced, which affects work efficiency.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0005] The (main) purpose of the present invention is to provide an auxiliary device and a method for using the auxiliary device which can adapt to the press-fitting of different cylinder head valve lock clips without replacing the press-fitting plate.

[0006] To this end, the present invention provides an engine cylinder head valve lock clip assembly auxiliary device and a use method.

[0007] Preferably, the present invention may also have the following technical features:

[0008] An engine cylinder head valve lock clamp assembly auxiliary device comprises a roller table, a cylinder head positioning device mounted on the roller table, and a power mechanism for driving a press plate to move up and down; the power mechanism comprises an oil cylinder and an oil cylinder rod mounting plate, the oil cylinder rod mounting plate is mounted below the roller table, the middle of the oil cylinder rod end of the oil cylinder is connected, and guide rods are respectively mounted and fixed at both ends; the upper ends of the guide rods are respectively mounted and fixed with longitudinal frames; the press plate is located above the roller table, and the two ends of the press plate are connected to the longitudinal frames;

[0009] The press plate is also provided with a transverse middle long groove extending along its length direction, a plurality of longitudinal grooves arranged longitudinally and intersecting with the middle long groove, and a plurality of transverse grooves arranged transversely.

[0010] Furthermore, the press plate is provided with a first long waist hole arranged along the length direction thereof, and the bolt passes through the first long waist hole and is connected to the longitudinal frame.

[0011] Furthermore, the longitudinal long groove is perpendicular to the middle long groove; the center line of the middle long groove coincides with the center line of the press-fit plate.

[0012] Furthermore, the transverse groove is parallel to the middle long groove.

[0013] Furthermore, an intermediate plate is arranged between the press-fit plate and the longitudinal frame, the upper end of the intermediate plate is fixedly connected to the longitudinal frame, and the lower end of the intermediate plate is connected to the press-fit plate.

[0014] Furthermore, an upper plate is arranged between the middle plate and the longitudinal frame, one end of the upper plate is fixedly connected to the upper end of the middle plate, and the other end of the upper plate is connected to the longitudinal frame.

[0015] Furthermore, the longitudinal frame is provided with an assembly groove on one side of the press plate, and the two ends of the press plate are respectively slidably installed in the assembly groove and can move along the guide stroke of the assembly groove, thereby adjusting the longitudinal position of the press plate to adapt to the installation position of the valve lock clamp.

[0016] Furthermore, the longitudinal frame is also provided with a locking bolt for limiting the movement of the upper plate.

[0017] Furthermore, it also includes a horizontal frame, and two ends of the horizontal frame are respectively fixed to the two vertical frames.

[0018] A method for using the engine cylinder head valve lock clip assembly auxiliary device as described above comprises the following steps:

[0019] Use a crane to lift the cylinder head to be equipped with the valve lock clip onto the cylinder head conveyor roller, and assemble the valve oil seal and valve according to the process;

[0020] Start the lifting button, the oil cylinder under the bottom of the cylinder head pulls the mounting plate up, driving the pressing plate to rise, and after rising to the right position, the cylinder head is transferred to the middle of the pressing plate;

[0021] Fix the cylinder head and install the valve spring and valve spring seat;

[0022] Start the down button, the oil cylinder drives the press plate to press down until the valve lock clip installation part of the valve stem is exposed above the cylinder head valve lock clip pressure plate, and the cylinder head valve lock clip is assembled manually;

[0023] Then start the oil cylinder again, the oil cylinder drives the cylinder head valve lock clamp pressure plate to rise, the valve spring rebounds, and the cylinder head valve lock clamp is firmly installed on the valve spring seat;

[0024] The oil cylinder under the bottom of the cylinder head descends, the positioning device separates from the cylinder head, and the cylinder head continues to flow downward along the roller table.

[0025] Compared with the prior art, the beneficial effects of the present invention include: by setting the first long waist hole, the fixed position of the press plate can be adjusted laterally to adapt to the position of the valve lock clamp and improve work efficiency; the assembly tooling assembly of the engine valve lock clamp disclosed in the existing patent document CN117020618A replaces different cylinder head valve lock clamp press plates to adapt to the assembly requirements of different types of cylinder head valve lock clamps, and it is necessary to prepare multiple types of press plates and frames, which has high manufacturing costs, and replacing press plates and frames is time-consuming and labor-intensive, affecting work efficiency. The present invention designs a new cylinder head valve lock clamp installation device, improves the structure of the press plate and the mechanism for driving the press plate to move, and can adapt to the installation of valve lock clamps of all models of two-valve cylinder heads through the long groove in the middle of the press plate. The longitudinal 12 or more longitudinal grooves and transverse grooves are compatible with the installation of cylinder head valve lock clamps with 4 valves vertically distributed per cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a partial enlarged view of the present invention.

[0028] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0029] Figure 4 It is a top view of the press-fit plate of the present invention.

[0030] Figure 5 It is a cross-sectional view of the press-fit plate of the present invention.

[0031] Description of main reference numerals:

[0032] 1-pressing plate. 2-limiting block, 3-guide rod locking nut, 4-upper plate, 5-mounting bolt, 6-locking bolt, 7-middle plate, 8-side plate, 9-cross frame, 10-longitudinal frame, 11-guide rod, 12-cylinder head valve head, 13-valve locking clamp, 14-valve spring seat ring, 15-valve spring, 16-cylinder head, 17-positioning device, 18-roller, 19-switch button, 20-guide rod mounting plate, 21-guide limiting plate, 22-oil cylinder, 23-oil cylinder rod mounting plate. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0034] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically stated.

[0035] like Figures 1-2 The engine cylinder head valve lock clamp assembly auxiliary device shown in the figure includes a power mechanism, a cylinder head positioning device, and a press-fitting assembly. The power mechanism includes a cylinder, a cylinder inlet and outlet oil pipes, and a plurality of control valves; the cylinder head positioning device includes a positioning plate and a positioning pin; the press-fitting assembly includes a press-fitting plate 1, a limit block 2, a guide rod locking nut 3, an upper plate 4, a limit block mounting bolt 5, a locking bolt 6, a middle plate 7, a side plate 8, a cross frame 9, a longitudinal frame 10, a guide rod 11, a cylinder head positioning device 17, a roller 18, a switch button 19, a guide rod mounting plate 20, a guide limit plate 21, a cylinder 22, and a cylinder rod mounting plate 23.

[0036] Combination Figure 1 , the cylinder rod mounting plate 23 is installed below the roller 18, the middle of which is connected to the cylinder rod end of the cylinder 22, and the guide rods 11 are respectively installed and fixed at both ends; the upper ends of the guide rods 11 are respectively installed and fixed with longitudinal frames 10, and are fixed by guide rod locking nuts 3. The press plate 1 is located above the roller 18, and its two ends are fixed to the longitudinal frame 10 by bolt connection. In this way, when the cylinder rod is telescopically displaced, the guide rods 11 can transmit force to drive the press plate 1 to move up and down. Preferably, the press plate 1 is provided with a first long waist hole arranged along its length direction, and the bolts are connected to the longitudinal frame after passing through the first long waist hole 27. By setting the first long waist hole 27, the fixed position of the press plate can be adjusted laterally to adapt to the position of the valve lock clamp, thereby improving work efficiency.

[0037] In some embodiments, an intermediate plate 7 is provided between the press plate 1 and the longitudinal frame, the upper end of the intermediate plate 7 is fixedly connected to the longitudinal frame 10 by bolts, and the lower end is connected to the press plate 1, and the press plate 1 is connected to the intermediate plate 7 by the first long waist hole 27. In this embodiment, the intermediate plate 7 is used to increase the distance between the press plate 1 and the longitudinal frame 10.

[0038] Preferably, an upper plate is arranged between the middle plate 7 and the longitudinal frame 10, one end of the upper plate 4 is fixedly connected to the upper end of the middle plate 7, and the other end is connected to the longitudinal frame 10. The longitudinal frame 10 is provided with an assembly groove 101 on one side of the upper plate 4, the upper plate 4 is inserted into the assembly groove 101, and can move along the guide stroke of the assembly groove 101, thereby adjusting the longitudinal position of the press plate 1 to adapt to the installation position of the valve lock clamp. At the same time, a locking bolt 6 is also provided on the longitudinal frame 10. When the upper plate 4 is moved into place, the upper plate 4 is fixed by the locking bolt 6 to limit the movement of the upper plate 4. The limit block is fixed to the lower side of the upper plate by the mounting bolt 5, which can be used to limit the assembly position of the upper plate 4 and improve the assembly efficiency.

[0039] In order to improve the structure of the two longitudinal frames 10, a cross frame 9 is arranged on the same side of the two longitudinal frames 10, and the two ends of the cross frame 9 are respectively fixed to the two longitudinal frames 10. During assembly, the operator stands on the other side relative to the installation of the cross frame 9 to assemble the valve lock clip.

[0040] The press plate 1 is provided with a transverse middle long groove 25 extending along its length direction, and a plurality of longitudinal grooves 24 arranged longitudinally and intersecting with the middle long groove 25. The middle long groove 25 and the longitudinal groove 24 both penetrate the press plate 1. Preferably, the press plate 1 is also provided with a plurality of transverse grooves 26, and the transverse grooves 26 are parallel to the middle long groove 25. In this embodiment, the middle long groove 25 can adapt to all models of two-valve cylinder heads, and the longitudinal 12 or more longitudinal grooves 24 and transverse grooves 26 can be compatible with cylinder heads with 4 valves vertically distributed per cylinder. The two ends of the side plate 8 are respectively connected to two middle plates, and the lower side is connected to the press plate 1 by bolts. Preferably, the positions of the transverse groove and the side plate 8 correspond, and the bolts are passed through the transverse groove and then screwed into the lower part of the side plate 8. The structural strength of the press plate 1 is enhanced by the side plate 8 to prevent the press plate 1 from deforming. Specifically, the transverse groove 26 and the first long waist hole 27 are arranged in parallel.

[0041] A method for using the above-mentioned engine cylinder head valve lock clamp assembly auxiliary device comprises the following steps: using a crane to lift the cylinder head to be equipped with the valve lock clamp onto the cylinder head conveying roller 18, after assembling the valve oil seal and the valve according to the process, starting the lifting button, the oil cylinder 22 under the bottom of the cylinder head 16 pulls the mounting plate 23 to rise, driving the guide rod mounting plate 20, the four guide rods 11 and the longitudinal frame 10, the transverse frame 9, the pressing plate assembly, etc. to rise, and after rising to the right position, the cylinder head is transferred to the middle position of the pressing plate 1 of the cylinder head valve lock clamp assembly auxiliary device, and the cylinder head positioning device 17 is used to position the cylinder head The cover 16 is fixed, the valve spring 15 and the valve spring seat ring 14 are installed. At this time, the downward button is activated, and the cylinder 22 drives the press-fitting assembly to press downward until the valve lock clamp installation part of the valve stem is exposed above the cylinder head valve lock clamp pressure plate 1. The cylinder head valve lock clamp is assembled manually, and then the cylinder 22 is started again. The cylinder 22 drives the cylinder head valve lock clamp pressure plate 1 to rise, the valve spring rebounds, and the cylinder head valve lock clamp is firmly installed on the valve spring seat. The cylinder 22 under the bottom of the cylinder head 16 descends, the positioning device 17 is separated from the cylinder head, and the cylinder head continues to flow downward along the roller 18.

[0042] Those skilled in the art will appreciate that numerous variations to the above description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0043] Although what is considered as exemplary embodiments of the present invention has been described and described, it will be understood by those skilled in the art that various changes and substitutions may be made thereto without departing from the spirit of the present invention. In addition, many modifications may be made to adapt specific situations to the teachings of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but the present invention may also include all embodiments and their equivalents that fall within the scope of the present invention.

Claims

1. An engine cylinder head valve lock clamp assembly auxiliary device, comprising a roller table, a cylinder head positioning device mounted on the roller table, and a power mechanism for driving a press plate to move up and down; the power mechanism comprises an oil cylinder, characterized in that: It also includes a cylinder rod mounting plate, which is mounted below the roller, with the middle portion connected to the cylinder rod end of the oil cylinder, and guide rods are respectively mounted and fixed at both ends; the upper ends of the guide rods are respectively mounted and fixed with longitudinal frames; the press plate is located above the roller, and its two ends are connected to the longitudinal frames; The press plate is also provided with a transverse middle long groove extending along its length direction, a plurality of longitudinal grooves arranged longitudinally and intersecting with the middle long groove, and a plurality of transverse grooves arranged transversely.

2. An engine cylinder head valve lock clip assembly auxiliary device as claimed in claim 1, characterized in that: The press plate is provided with a first long waist hole arranged along the length direction thereof, and the bolt is connected to the longitudinal frame after passing through the first long waist hole.

3. The engine cylinder head valve lock clip assembly auxiliary device according to claim 1, characterized in that: The longitudinal long groove is perpendicular to the middle long groove; the center line of the middle long groove coincides with the center line of the press-fit plate.

4. The engine cylinder head valve lock clip assembly auxiliary device according to claim 1, characterized in that: The transverse groove is parallel to the middle long groove.

5. The engine cylinder head valve lock clip assembly auxiliary device according to claim 1, characterized in that: An intermediate plate is arranged between the press-fit plate and the longitudinal frame, the upper end of the intermediate plate is fixedly connected to the longitudinal frame, and the lower end of the intermediate plate is connected to the press-fit plate.

6. An engine cylinder head valve lock clip assembly auxiliary device as claimed in claim 5, characterized in that: An upper plate is arranged between the middle plate and the longitudinal frame, one end of the upper plate is fixedly connected to the upper end of the middle plate, and the other end of the upper plate is connected to the longitudinal frame.

7. The engine cylinder head valve lock clip assembly auxiliary device according to claim 1, characterized in that: The longitudinal frame is provided with an assembly groove on one side facing the press plate, and the two ends of the press plate are respectively slidably mounted in the assembly groove and can move along the guide stroke of the assembly groove, thereby adjusting the longitudinal position of the press plate to adapt to the installation position of the valve lock clamp.

8. An engine cylinder head valve lock clip assembly auxiliary device as claimed in claim 7, characterized in that: The longitudinal frame is also provided with locking bolts for limiting the movement of the upper plate.

9. The engine cylinder head valve lock clip assembly auxiliary device according to claim 1, characterized in that: It also includes a horizontal frame, and two ends of the horizontal frame are respectively fixed to the two vertical frames.

10. A method for using the engine cylinder head valve lock clip assembly auxiliary device as claimed in claim 1, characterized in that: The steps include: Use a crane to lift the cylinder head to be equipped with the valve lock clip onto the cylinder head conveyor roller, and assemble the valve oil seal and valve according to the process; Start the lifting button, the oil cylinder under the bottom of the cylinder head pulls the mounting plate up, driving the pressing plate to rise, and after rising to the right position, the cylinder head is transferred to the middle of the pressing plate; Fix the cylinder head and install the valve spring and valve spring seat; Start the down button, the oil cylinder drives the press plate to press down until the valve lock clip installation part of the valve stem is exposed above the cylinder head valve lock clip pressure plate, and the cylinder head valve lock clip is assembled manually; Then start the oil cylinder again, the oil cylinder drives the cylinder head valve lock clamp pressure plate to rise, the valve spring rebounds, and the cylinder head valve lock clamp is firmly installed on the valve spring seat; The oil cylinder under the bottom of the cylinder head descends, the positioning device separates from the cylinder head, and the cylinder head continues to flow downward along the roller table.

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