Engine cylinder cover casting machining tool

Abstract

The utility model belongs to the technical field of engine cylinder cover casting machining, and particularly relates to an engine cylinder cover casting machining tool which comprises an installation base, an expansion sleeve is vertically and fixedly installed below the installation base, the upper end of the expansion sleeve is connected with the installation base, and the lower end of the expansion sleeve is matched with a hoisting hole in an engine cylinder cover casting. A groove penetrating through the radial direction is formed in the lower end face of the expansion sleeve, a cavity is formed in the expansion sleeve and comprises a first cavity body and a second cavity body communicated with the first cavity body, the first cavity body is located above the second cavity body, the inner diameter of the second cavity body is gradually decreased from top to bottom, and the depth of the groove is matched with the length of the second cavity body. The guide rod is slidably connected in the cavity of the expansion sleeve and slides to change the outer diameter of the lower end of the expansion sleeve, that is, the expansion sleeve can be quickly attached to or separated from the inner wall of the mounting hole of the engine cylinder cover casting, and the efficiency of hoisting operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine cylinder cover casting processing technical field, specifically relates to an engine cylinder cover casting processing frock. BACKGROUND

[0002] The cylinder cover of the engine is one of the core parts of the engine, and in the production and processing process, due to the characteristics of large weight and large size, the cylinder cover is usually transported by hoisting equipment.

[0003] A variety of hoisting frock solutions for engine cylinder cover casting processing are provided in the prior art, most of which use threaded holes on the engine cylinder cover casting to install lifting rings, or use reserved lifting holes, and then use hooks to lift the engine cylinder cover casting. This hoisting solution requires manual assembly and disassembly of the hooks and lifting rings before and after each lifting operation, which is complicated and affects work efficiency. Therefore, it is necessary to design a frock that can quickly hoist the engine cylinder cover casting to improve the efficiency of hoisting operations. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a frock that can quickly hoist the engine cylinder cover casting to solve the problems raised in the background.

[0005] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0006] An engine cylinder cover casting processing frock includes a mounting seat, a expansion sleeve is vertically fixedly installed below the mounting seat, the upper end of the expansion sleeve is connected with the mounting seat, the lower end of the expansion sleeve is matched with a lifting hole on the engine cylinder cover casting, a radial recess is provided on the lower end face of the expansion sleeve, a cavity is provided in the expansion sleeve, the cavity includes a first cavity and a second cavity in communication with the first cavity, the first cavity is located above the second cavity, the inner diameter of the second cavity gradually decreases from top to bottom, the depth of the recess matches the length of the second cavity, and a guide rod is slidably connected in the cavity of the expansion sleeve.

[0007] As a further improvement, the lower end of the guide rod is an arc-shaped curved surface structure, and the outer diameter of the guide rod matches the outer diameter of the first cavity.

[0008] As a further improvement, a cylinder is fixedly provided on the mounting seat, an installation plate is fixedly connected to the output end of the cylinder, and the installation plate is fixedly connected with the upper end of the guide rod.

[0009] As a further improvement, a positioning column is vertically fixedly installed below the mounting seat, the length of the positioning column is greater than the length of the expansion sleeve, and the positioning column is matched with a through positioning hole on the engine cylinder cover casting.

[0010] As a further improvement, a through hole is provided on the mounting seat, and a buffer column is slidably provided in the through hole. Both ends of the buffer column are fixedly connected with nuts, and a buffer spring is sleeved on the side wall of the buffer column. One end of the buffer spring is against the lower surface of the mounting seat, and the other end of the buffer spring is against the nut at the lower end of the buffer column.

[0011] As a further improvement, a lifting ring is fixedly provided on the mounting seat, and the lifting ring is used in conjunction with the lifting equipment.

[0012] As a further improvement, a handle is hingedly connected to the mounting base.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model provides an engine cylinder head casting processing tool. By arranging multiple expansion sleeves and guide rods, the expansion sleeves can be quickly attached to or separated from the inner wall of the mounting hole of the engine cylinder head casting. The tool is used in conjunction with lifting equipment to perform lifting operations. There is no need to frequently assemble and disassemble the hooks and lifting rings, which can improve work efficiency and reduce the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0016] Figure 2 It is a cross-sectional view of the expansion sleeve and the guide rod of the utility model;

[0017] Figure 3 This is a structural diagram of the mounting base and mounting plate of the utility model;

[0018] Figure 4 It is a structural diagram of the buffer spring of the utility model.

[0019] Among them: 1-mounting seat, 2-expansion sleeve, 201-cavity, 2011-first cavity, 2012-second cavity, 3-guide rod, 4-cylinder, 5-mounting plate, 6-positioning column, 7-buffer column, 8-nut, 9-buffer spring, 10-lifting ring, 11-handle, 12-controller, 13-engine cylinder head casting. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic, not physical, representations. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0021] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] like Figures 1-4 As shown, a tool for processing an engine cylinder head casting includes a mounting base 1, an expansion sleeve 2 is vertically fixedly installed below the mounting base 1, the upper end of the expansion sleeve 2 is connected to the mounting base 1, and the lower end of the expansion sleeve 2 cooperates with the hoisting hole reserved on the engine cylinder head casting 13. A radial groove is provided on the lower end surface of the expansion sleeve 2. Specifically, a plurality of grooves can be evenly arranged. A cavity 201 is provided inside the expansion sleeve 2. The cavity 201 includes a first cavity 2011 and a second cavity 2012 connected to the first cavity 2011. The first cavity 2011 is located above the second cavity 2012, and the inner diameter of the second cavity 2012 gradually increases from top to bottom. The outer diameter of the expansion sleeve 2 is larger than the inner diameter of the second cavity 2012. When the guide rod 3 slides downward into the second cavity 2012, the outer diameter of the lower end of the expansion sleeve 2 becomes larger, and then the outer wall of the expansion sleeve 2 is tightly matched with the inner wall of the lifting hole on the engine cylinder head casting 13. When the mounting seat 1 rises, the engine cylinder head casting 13 rises accordingly under the action of friction. After the guide rod 3 slides upward to exit the second cavity 2012, the expansion sleeve 2 resumes its initial outer diameter, and the expansion sleeve 2 can be withdrawn from the lifting hole.

[0023] In this embodiment, the lower end of the guide rod 3 is an arc-shaped curved surface structure, which is conducive to the cooperation between the guide rod 3 and the cavity 201.

[0024] In this embodiment, a cylinder 4 is fixedly provided on the mounting base 1, and the output end of the cylinder 4 is fixedly connected to the mounting plate 5, which is fixedly connected to the upper end of the guide rod 3. The cylinder 4 extends and retracts, driving the mounting plate 5 and the guide rod 3 to move up and down.

[0025] In this embodiment, a positioning column 6 is fixedly installed under the mounting base 1. The length of the positioning column 6 is greater than the length of the expansion sleeve 2. The positioning column 6 cooperates with the through positioning hole on the engine cylinder head casting 13. During specific use, the positioning column 6 passes through the positioning hole of the engine cylinder head casting 13. When the engine cylinder head casting 13 is hoisted above the engine cylinder block, the engine cylinder head casting 13 and the engine cylinder block can be quickly aligned by simply aligning the lower end of the positioning column 6 with the corresponding positioning hole on the engine cylinder block.

[0026] In this embodiment, a through hole is provided on the mounting seat 1, and a buffer column 7 is slidably provided in the through hole. Nuts 8 are fixedly connected to both ends of the buffer column 7. A buffer spring 9 is sleeved on the side wall of the buffer column 7. One end of the buffer spring 9 is abutted against the lower surface of the mounting seat 1, and the other end of the buffer spring 9 is abutted against the nut 8 at the lower end of the buffer column 7. The buffer spring 9 can slow down the descending speed of the mounting seat 1 to prevent damage to the engine cylinder head casting 13.

[0027] In this embodiment, a lifting ring 10 is fixedly provided on the mounting base 1 , and the lifting ring 10 is used in conjunction with a lifting device.

[0028] In this embodiment, a handle 11 is hingedly connected to the mounting base 1 , and a controller 12 is mounted on the handle 11 for controlling the operation of the cylinder 4 .

[0029] When using this embodiment, the operator manually holds the handle 11 and extends the expansion sleeve 2 into the corresponding lifting hole of the engine cylinder head casting 13, and uses the controller 12 on the handle 11 to make the cylinder 4 drive the mounting plate 5 and the guide rod 3 to move downward, and the outer diameter of the lower end of the expansion sleeve 2 becomes larger. After the outer wall of the expansion sleeve 2 is tightly fitted with the inner wall of the lifting hole, the lifting equipment is started and drives the mounting seat 1 to rise as a whole. Under the action of friction, the engine cylinder head casting 13 is lifted; after reaching the appropriate position, the engine cylinder head casting 13 is slowly lowered. During this period, it is necessary to continuously observe and adjust the relative position of the engine cylinder head casting 13 and the engine cylinder body. When the positioning column 6 is aligned with the positioning hole on the engine cylinder body, the engine cylinder head casting 13 is completely lowered, and the cylinder 4 drives the mounting plate 5 and the cylinder 4 to move upward. The guide rod 3 withdraws from the second cavity 2012, and the outer diameter of the lower end of the expansion sleeve 2 returns to its initial size, and the expansion sleeve 2 can be easily withdrawn from the mounting hole.

[0030] The specific implementation of the utility model above does not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A tool for machining engine cylinder head castings, comprising a mounting seat, characterized in that: An expansion sleeve is vertically fixedly installed below the mounting seat, the upper end of the expansion sleeve is connected to the mounting seat, and the lower end of the expansion sleeve cooperates with the lifting hole on the engine cylinder head casting. A radial groove is provided on the lower end surface of the expansion sleeve, and a cavity is provided inside the expansion sleeve, which includes a first cavity and a second cavity connected to the first cavity. The first cavity is located above the second cavity, and the inner diameter of the second cavity gradually decreases from top to bottom. The depth of the groove matches the length of the second cavity, and a guide rod is slidably connected to the cavity of the expansion sleeve.

2. The engine cylinder head casting processing tool according to claim 1, characterized in that: The lower end of the guide rod is an arc-shaped curved surface structure, and the outer diameter of the guide rod matches the outer diameter of the first cavity.

3. The engine cylinder head casting processing tool according to claim 1, characterized in that: A cylinder is fixedly provided on the mounting seat, an output end of the cylinder is fixedly connected to a mounting plate, and the mounting plate is fixedly connected to the upper end of the guide rod.

4. The engine cylinder head casting processing tool according to claim 1, characterized in that: A positioning column is vertically fixedly installed below the mounting seat. The length of the positioning column is greater than the length of the expansion sleeve. The positioning column cooperates with a through positioning hole on the engine cylinder head casting.

5. The engine cylinder head casting processing tool according to claim 1, characterized in that: A through hole is provided on the mounting seat, a buffer column is slidably provided in the through hole, both ends of the buffer column are fixedly connected with nuts, a buffer spring is sleeved on the side wall of the buffer column, one end of the buffer spring is against the lower surface of the mounting seat, and the other end of the buffer spring is against the nut at the lower end of the buffer column.

6. The engine cylinder head casting processing tool according to claim 1, characterized in that: A lifting ring is fixedly provided on the mounting seat, and the lifting ring is used in conjunction with a lifting device.

7. The engine cylinder head casting processing tool according to claim 1, characterized in that: A handle is hingedly connected to the mounting base.

Images