Auxiliary device for assembling valve collet of engine cylinder cover

Abstract

The utility model discloses an engine cylinder cover valve collet assembling auxiliary device which comprises a roller way, a cylinder cover positioning device installed on the roller way and a power mechanism 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 utility model relates to the technical field of engine assembly, in particular to an auxiliary device for assembling an engine cylinder cover valve lock clamp. Background Art

[0002] Currently, when assembling cylinder head valve lock clips on an assembly line, due to the presence of multiple models and varieties, press-fitting multiple cylinder head valve lock clips on the same equipment is extremely difficult. Therefore, it is urgent to design a structure and method for quickly replacing cylinder head valve lock clips to solve the problem of press-fitting multiple cylinder head valve lock clips on the same equipment.

[0003] Existing patent document CN117020618A discloses an assembly tooling assembly for an engine valve lock clamp, which includes two major categories: dual-valve press-fit plates and multi-valve press-fit plates. Each category includes a variety of specifications to meet the assembly requirements of multiple models and varieties of valve lock clamps. The cylinder head valve lock clamp press-fit plate uses an inserted card plate method. The left and right card slots of the right and left card plates have openings on one side, and are locked with only two bolts, making it easy to replace 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 both the double valve and multi-valve lock clamp press-fitting at the same time. The specified press-fit plate needs to be replaced, affecting 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 utility model. 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 this application. Utility Model Content

[0005] The utility model (mainly) aims to provide an auxiliary device and a use method thereof which can adapt to the press-fitting of different cylinder head valve lock clips without replacing a press-fitting plate.

[0006] To this end, the utility model provides an engine cylinder head valve lock clamp assembly auxiliary device.

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

[0008] An engine cylinder head valve lock clamp assembly auxiliary device includes a roller conveyor, a cylinder head positioning device mounted on the roller conveyor, and a power mechanism for driving a press plate to move up and down; the power mechanism includes a cylinder and a cylinder rod mounting plate, the cylinder rod mounting plate being mounted below the roller conveyor, the middle portion of the cylinder rod mounting plate being connected to the end of the cylinder rod of the cylinder, and guide rods being mounted and fixed at both ends; the upper ends of the guide rods are each mounted and fixed with a vertical frame; the press plate is located above the roller conveyor, and its two ends are connected to the vertical frame;

[0009] The press plate is further 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 vertical frame.

[0011] Furthermore, the longitudinal groove is perpendicular to the middle long groove; and 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 provided between the press-fit plate and the vertical frame, the upper end of the intermediate plate is fixedly connected to the vertical frame, and the lower end of the intermediate plate is connected to the press-fit plate.

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

[0015] Furthermore, 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 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, a locking bolt is provided on the vertical frame to limit the movement of the upper plate.

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

[0018] Compared with the prior art, the beneficial effects of the present invention include: by setting a 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, thereby improving 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 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

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a partial enlarged view of the present utility model.

[0021] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0022] Figure 4 It is a top view of the press-fit plate of the present utility model.

[0023] Figure 5 It is a cross-sectional view of the press-fit plate of the present utility model.

[0024] Description of main reference numerals:

[0025] 1- Press-fit plate. 2- Limit 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 clip, 14- Valve spring seat, 15- Valve spring, 16- Cylinder head, 17- Positioning device, 18- Roller, 19- Switch button, 20- Guide rod mounting plate, 21- Guide limit plate, 22- Cylinder, 23- Cylinder rod mounting plate. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0027] 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 specified.

[0028] 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 several 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, an intermediate plate 7, a side plate 8, a cross frame 9, a vertical 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.

[0029] Combine Figure 1 The cylinder rod mounting plate 23 is installed below the roller 18, and its middle part is connected to the end of the cylinder rod of the cylinder 22, and the guide rods 11 are respectively fixed at both ends; the upper ends of the guide rods 11 are respectively fixed with longitudinal frames 10, and fixed by guide rod locking nuts 3. The pressing plate 1 is located above the roller 18, and its two ends are fixed to the longitudinal frame 10 by bolts. In this way, when the cylinder rod is telescopically displaced, the force can be transmitted through the guide rods 11 to drive the pressing plate 1 to move up and down. Preferably, the pressing plate 1 is provided with a first long waist hole arranged along its length direction, and the bolt is 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 pressing plate can be adjusted laterally to adapt to the position of the valve lock clamp, thereby improving work efficiency.

[0030] In some embodiments, an intermediate plate 7 is provided between the press plate 1 and the vertical frame. The upper end of the intermediate plate 7 is fixedly connected to the vertical frame 10 via bolts, and the lower end is connected to the press plate 1. The press plate 1 is connected to the intermediate plate 7 via first long waist holes 27. In this embodiment, the intermediate plate 7 is used to separate the press plate 1 and the vertical frame 10.

[0031] Preferably, an upper plate is provided between the intermediate plate 7 and the longitudinal frame 10. One end of the upper plate 4 is fixedly connected to the upper end of the intermediate plate 7, and the other end is connected to the longitudinal frame 10. The longitudinal frame 10 has an assembly slot 101 on one side of the upper plate 4. The upper plate 4 is inserted into the assembly slot 101 and can move along the guide stroke of the assembly slot 101, thereby adjusting the longitudinal position of the press-fit plate 1 to accommodate the installation position of the valve lock clamp. Furthermore, a locking bolt 6 is provided on the longitudinal frame 10. Once the upper plate 4 is in place, the locking bolt 6 secures the upper plate 4, restricting its movement. The limit block is fixed to the lower side of the upper plate by the mounting bolt 5 and can be used to limit the assembly position of the upper plate 4, thereby improving assembly efficiency.

[0032] In order to improve the structure of the two vertical frames 10, a horizontal frame 9 is set on the same side of the two vertical frames 10, and the two ends of the horizontal frame 9 are respectively fixed to the two vertical frames 10. During assembly, the operator stands on the other side relative to the installation of the horizontal frame 9 to assemble the valve lock clip.

[0033] The press plate 1 is provided with a transverse middle long groove 25 extending along its length, 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 grooves 24 both pass through 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 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 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 deformation. Specifically, the transverse groove 26 and the first long waist hole 27 are arranged in parallel.

[0034] A method for using the above-mentioned engine cylinder head valve lock clamp assembly auxiliary device includes the following steps: using a crane to lift the cylinder head to be equipped with the valve lock clamp onto the cylinder head conveyor roller 18, assembling the valve oil seal and 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, four guide rods 11 and the vertical frame 10, horizontal frame 9, press plate assembly, etc. to rise, and after rising to the right position, the cylinder head is transferred to the middle position of the cylinder head valve lock clamp assembly auxiliary device press plate 1, 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 down button is activated, and the oil cylinder 22 drives the press-fitting assembly to press downward until the valve lock clamp portion 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 oil cylinder 22 is started again. The oil 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 oil cylinder 22 under the bottom of the cylinder head 16 descends, the positioning device 17 detaches from the cylinder head, and the cylinder head continues to flow downward along the roller 18.

[0035] Those skilled in the art will recognize that numerous variations to the foregoing description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0036] Although what are considered exemplary embodiments of the present invention have been described and illustrated, 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 a particular situation to the teachings of the present invention without departing from the central concept of the present invention as described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but rather may include all embodiments and their equivalents falling within the scope of the present invention.

Claims

1. An engine cylinder head valve lock clamp assembly auxiliary device, comprising a roller conveyor, a cylinder head positioning device mounted on the roller conveyor, and a power mechanism for driving a press plate to move up and down; the power mechanism comprises an oil cylinder, and is characterized in that: It also includes a cylinder rod mounting plate, which is installed below the roller conveyor, with its middle connected to the end of the cylinder rod of the oil cylinder, and guide rods fixedly mounted at both ends; the upper ends of the guide rods are each fixedly mounted with a vertical frame; the press plate is located above the roller conveyor, and its two ends are connected to the vertical frames; The press plate is further 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. The engine cylinder head valve lock clip assembly auxiliary device according to 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 vertical 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 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 provided between the press-fit plate and the vertical frame. The upper end of the intermediate plate is fixedly connected to the vertical frame, and the lower end of the intermediate plate is connected to the press-fit plate.

6. The engine cylinder head valve lock clip assembly auxiliary device according to claim 5, characterized in that: An upper plate is arranged between the middle plate and the vertical frame. One end of the upper plate is fixedly connected to the upper end of the middle plate, and the other end is connected to the vertical 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. Both ends of the press plate are slidably mounted in the assembly grooves and can move along the guide stroke of the assembly grooves to adjust the longitudinal position of the press plate to adapt to the installation position of the valve lock clamp.

8. The engine cylinder head valve lock clip assembly auxiliary device according to claim 7, characterized in that: The vertical frame is also provided with a locking bolt 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 both ends of the horizontal frame are respectively fixed to the two vertical frames.

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