Engine cylinder head valve lock clip assembly aid and method of use

Abstract

The application discloses an engine cylinder cover valve lock clamp assembling auxiliary device, which comprises a roller way, a cylinder cover positioning device installed on the roller way and a power mechanism for driving a pressing plate to move up and down, wherein the power mechanism comprises an oil cylinder, and the device is characterized in that an oil cylinder rod mounting plate is installed below the roller way, the middle part of the oil cylinder rod mounting plate is connected with the oil cylinder rod end of the oil cylinder, and guide rods are fixedly installed at the two ends of the oil cylinder rod mounting plate; the upper ends of the guide rods are fixedly installed with vertical frames respectively; the pressing plate is located above the roller way and is connected with the vertical frames at the two ends; a transverse middle long groove extending along the length direction of the pressing plate is formed in the pressing plate, a plurality of vertical grooves arranged in the vertical direction and intersecting with the middle long groove are formed in the pressing plate, and a plurality of transverse grooves are formed in the pressing plate. The application has the advantages of compact structure, high working efficiency and adaptability to various valve lock clamp installations without replacing the pressing plate.

Description

TECHNICAL FIELD

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

[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 multiple varieties, it is difficult to adapt to the pressing assembly of multiple models and multiple 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 simultaneously adapting to the pressing assembly of multiple models and multiple varieties of cylinder head valve lock clips on the same equipment.

[0003] The existing patent document CN117020618A discloses an engine valve lock clip assembly tool assembly, which comprises two types of double-valve pressing plates and multi-valve pressing plates, each type contains multiple specifications to adapt to the assembly requirements of multiple models and multiple varieties of valve lock clips. The cylinder head valve lock clip pressing plate uses an insertion clamping plate, the right and left clamping grooves on one side of the right and left clamping plates have openings, and only two bolts are needed to lock, which facilitates the replacement of different cylinder head valve lock clip pressing plates. It can be seen that the scheme provided by the patent document is mainly to prevent overpressure damage to the valve oil seal, and the pressing plate cannot simultaneously adapt to the pressing assembly of single-valve and multi-valve lock clips, and needs to replace the specified pressing plate, which affects the work efficiency.

[0004] The disclosure of the above background art content is only used to assist in understanding the concept and technical solutions of the present application, and it does not necessarily belong to the prior art of the present patent application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present patent application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. SUMMARY

[0005] The present application is mainly aimed at providing an auxiliary device and a use method which can adapt to the pressing assembly of different cylinder head valve lock clips without replacing the pressing plate.

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

[0007] Preferably, the present application can also have the following technical features:

[0008] An engine cylinder head valve lock clip assembly auxiliary device, comprising a roller way, and a cylinder head positioning device and a power mechanism for driving the up and down movement of a pressing plate installed on the roller way; the power mechanism comprises an oil cylinder, and further comprises an oil cylinder rod mounting plate installed below the roller way, with the middle part connected to the oil cylinder rod end, and two ends respectively fixed with guide rods; the upper ends of the guide rods are respectively fixed with longitudinal frames; the pressing plate is located above the roller way, and the two ends are connected to the longitudinal frames;

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

[0010] Further, the pressing plate is provided with a first long waist hole arranged along the length direction thereof, and a bolt is connected to the longitudinal frame after passing through the first long waist hole.

[0011] Further, 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 pressing plate.

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

[0013] Further, an intermediate plate is arranged between the pressing plate and the longitudinal frame, and the upper end of the intermediate plate is fixedly connected to the longitudinal frame, and the lower end is connected to the pressing plate.

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

[0015] Further, an assembly groove is formed on the side of the longitudinal frame facing the pressing plate, and the two ends of the pressing plate are respectively slidingly installed in the assembly groove and can move along the guide stroke of the assembly groove, thereby adjusting the longitudinal position of the pressing plate to adapt to the installation position of the valve lock clip.

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

[0017] Further, a transverse frame is further provided, and the two ends of the transverse frame are respectively fixed to the two longitudinal frames.

[0018] A use method of the engine cylinder head valve lock clip assembly auxiliary device as described above, comprising the following steps:

[0019] Use a crane to hoist the cylinder head with the valve lock clip to be assembled onto the cylinder head conveying roller way, and assemble the valve oil seal and valve according to the process;

[0020] Start the up button, the oil cylinder under the cylinder head bottom pulls the mounting plate up, drives the press-in plate up, and after rising to the position, the cylinder head is transferred to the middle of the press-in plate;

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

[0022] Start the down button, the oil cylinder drives the press-in plate down until the valve rod is exposed from the top of the cylinder head valve lock clamp pressing plate, and the cylinder head valve lock clamp is assembled by hand;

[0023] Then start the oil cylinder again, the oil cylinder drives the cylinder head valve lock clamp pressing 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 is lowered, the positioning device is separated from the cylinder head, and the cylinder head continues to flow down along the roller.

[0025] The beneficial effects of the present application compared with the prior art include: by setting the first long waist hole, the fixed position of the press-in plate can be adjusted horizontally to adapt to the position of the valve lock clamp, thereby improving the work efficiency; the engine valve lock clamp assembly disclosed in the prior patent document CN117020618A needs to prepare multiple types of press-in plates and frames to adapt to the assembly requirements of different types of cylinder head valve lock clamps, which has high manufacturing cost, and it is time-consuming and laborious to replace the press-in plate and frame, thereby affecting the work efficiency; by designing a new cylinder head valve lock clamp assembly, the structure of the press-in plate and the mechanism for driving the press-in plate are improved, the middle long groove of the press-in plate can adapt to the installation of all types of valve lock clamps of two-valve cylinder heads, and the 12 or more longitudinal grooves and transverse grooves can be compatible with the installation of cylinder head valve lock clamps of four-valve cylinder heads per cylinder. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0028] Figure 3 is a top view structural schematic diagram of the present application.

[0029] Figure 4 is a top view of the press-in plate of the present application.

[0030] Figure 5 is a sectional view of the press-in plate of the present application.

[0031] MAIN REFERENCE NUMERALS:

[0032] 1-Pressure plate; 2-Limit block; 3-Guide rod locking nut; 4-Upper plate; 5-Mounting bolt; 6-Locking bolt; 7-Intermediate plate; 8-Side plate; 9-Horizontal frame; 10-Longitudinal frame; 11-Guide rod; 12-Cylinder head valve head; 13-Valve lock clip; 14-Valve spring seat ring; 15-Valve spring; 16-Cylinder head; 17-Positioning device; 18-Roller conveyor; 19-Switch button; 20-Guide rod mounting plate; 21-Guide limit plate; 22-Hydraulic cylinder; 23-Hydraulic cylinder rod mounting plate. Detailed Implementation

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

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

[0035] like Figures 1-2 The illustrated engine cylinder head valve lock clamp assembly auxiliary device includes a power mechanism, a cylinder head positioning device, and a press-fit assembly. The power mechanism includes a hydraulic cylinder, hydraulic cylinder inlet and outlet oil pipes, and several control valves. The cylinder head positioning device includes a positioning plate and a positioning pin. The press-fit assembly includes a press-fit 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, an intermediate 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 conveyor 18, a switch button 19, a guide rod mounting plate 20, a guide limit plate 21, a hydraulic cylinder 22, and a hydraulic cylinder rod mounting plate 23.

[0036] Combination Figure 1 The cylinder rod mounting plate 23 is installed below the roller conveyor 18, with its middle section connected to the end of the cylinder rod of the cylinder 22, and guide rods 11 fixed at both ends. A longitudinal frame 10 is fixed to the upper end of each guide rod 11 and secured by a guide rod locking nut 3. The pressing plate 1 is located above the roller conveyor 18, and its two ends are fixed to the longitudinal frame 10 by bolts. Thus, when the cylinder rod extends or retracts, the guide rods 11 transmit force to move the pressing plate 1 up and down. Preferably, the pressing plate 1 has a first elongated hole 27 arranged along its length. Bolts pass through the first elongated hole 27 and connect to the longitudinal frame. By providing the first elongated hole 27, the fixed position of the pressing plate can be adjusted laterally to accommodate the position of the valve lock clamp, improving work efficiency.

[0037] In some embodiments, an intermediate plate 7 is arranged between the pressing plate 1 and the longitudinal frame, the upper end of the intermediate plate 7 is fixedly connected with the longitudinal frame 10 by bolts, the lower end is connected with the pressing plate 1, and the pressing plate 1 is connected with the intermediate plate 7 through the first long waist hole 27. In this embodiment, the intermediate plate 7 is used to pull apart the pressing plate 1 and the longitudinal frame 10.

[0038] Preferably, an upper plate is arranged between the intermediate plate 7 and the longitudinal frame 10, one end of the upper plate 4 is fixedly connected with the upper end of the intermediate plate 7, and the other end is connected with the longitudinal frame 10. The longitudinal frame 10 is provided with an assembly groove 101 on one side facing 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 pressing plate 1 to adapt to the installation position of the valve lock clamp. Meanwhile, the longitudinal frame 10 is also provided with a locking bolt 6, which is used to fix the upper plate 4 after the upper plate 4 is moved into position, thereby limiting the movement of the upper plate 4. The limiting 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, one transverse frame 9 is arranged on the same side of the two longitudinal frames 10, and the two ends of the transverse frame 9 are fixed with the two longitudinal frames 10. During assembly, the operator stands on the side opposite to the installation side of the transverse frame 9 to assemble the valve lock clamp.

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

[0041] A method for using the engine cylinder head valve lock clip assembly aid as described above, comprising the following steps: using a crane to hoist the cylinder head to be assembled with valve lock clip to the cylinder head conveying roller 18, assembling the valve oil seal and the valve in accordance with the process, starting the rising button, the oil cylinder 22 under the bottom of the cylinder head 16 pulls the installation plate 23 to rise, driving the guide rod installation plate 20, four guide rods 11, and the vertical frame 10, horizontal frame 9, and the pressing plate assembly to rise, after rising to the position, the cylinder head is transferred to the middle of the cylinder head valve lock clip assembly aid pressing plate 1, the cylinder head 16 is fixed by the cylinder head positioning device 17, the valve spring 15 and the valve spring retainer 14 are assembled, at this time, the down button is started, the oil cylinder 22 drives the pressing assembly to press down until the valve rod lock clip part is exposed above the cylinder head valve lock clip pressing plate 1, the cylinder head valve lock clip is assembled by hand, and then the oil cylinder 22 is started again, the oil cylinder 22 drives the cylinder head valve lock clip pressing plate 1 to rise, the valve spring rebounds, the cylinder head valve lock clip is firmly assembled on the valve spring seat, the oil cylinder 22 under the bottom of the cylinder head 16 is lowered, the positioning device 17 is separated from the cylinder head, and the cylinder head continues to flow down along the roller 18.

[0042] Those skilled in the art will recognize that numerous modifications can be made to the above description while still falling within the scope of the application. The embodiments and figures are merely used to describe one or more specific embodiments.

[0043] While the application has been described and illustrated with respect to what are presently considered to be the exemplary embodiments, it is to be understood that the application is not to be limited to the specific embodiments presented, and that the application includes all embodiments falling within the scope of the application.

Claims

1. An engine cylinder head valve-keeper assembly aid device, comprising a roller way, and a cylinder head positioning device and a power mechanism for driving the up-and-down movement of a press plate installed on the roller way; the power mechanism comprises an oil cylinder, characterized in that: It also comprises an oil cylinder rod mounting plate, which is installed below the roller bed, with the middle part connecting the oil cylinder rod end of the oil cylinder, and two ends respectively fixed with guide rods; the upper end of each guide rod is fixed with a vertical frame; the pressing plate is located above the roller bed, with both ends connected to the vertical frame; The pressing 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; The pressing plate is provided with a first long waist hole arranged along its length direction, and the bolt is connected to the vertical frame after passing through the first long waist hole; The intermediate plate is provided between the pressing plate and the vertical frame, and the upper end of the intermediate plate is fixedly connected to the vertical frame, and the lower end is connected to the pressing plate; The upper plate is provided between the intermediate plate and the vertical frame, and one end of the upper plate is fixedly connected to the upper end of the intermediate plate, and the other end is connected to the vertical frame; The vertical frame is provided with an assembly groove on one side facing the upper plate, and the upper plate is inserted into the assembly groove and can move along the guide stroke of the assembly groove, thereby adjusting the longitudinal position of the pressing plate to adapt to the installation position of the valve lock clamp; The vertical frame is also provided with a locking bolt for limiting the movement of the upper plate; It also comprises a horizontal frame, and both ends of the horizontal frame are fixed with two vertical frames.

2. An engine cylinder head valve-keeper assembly aid as defined in claim 1 wherein: The longitudinal groove is perpendicular to the middle long groove; the center line of the middle long groove coincides with the center line of the pressing plate.

3. An engine cylinder head valve-keeper assembly aid as in claim 1, wherein: The transverse groove is parallel to the middle long groove.

4. A method of using the engine cylinder head valve-keeper assembly aid of claim 1, characterized by: The method comprises the following steps: Use a crane to lift the cylinder head to be installed with a valve lock clamp onto a cylinder head conveying roller bed, and assemble the valve oil seal and valve according to the process; Start the rising button, and 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 position, the cylinder head is transferred to the position in the middle of the pressing plate; Fix the cylinder head, and install the valve spring and valve spring retainer; Start the down button, and the oil cylinder drives the pressing plate to press down until the valve rod part installed with the valve lock clamp is exposed above the cylinder head valve lock clamp pressing plate, and then manually assemble the cylinder head valve lock clamp; Then start the oil cylinder again, and the oil cylinder drives the cylinder head valve lock clamp pressing plate to rise, and the valve spring rebounds to firmly install the cylinder head valve lock clamp on the valve spring seat; The oil cylinder under the bottom of the cylinder head descends, the positioning device is separated from the cylinder head, and the cylinder head continues to flow down along the roller bed.

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