Tool for removing broken cutter part in machining of deep oil way hole in top surface of cylinder body

Abstract

The utility model discloses a tool for removing a broken tool part in cylinder top surface deep oil way hole machining, and belongs to the technical field of engine cylinder production. The lower end of the impact body is connected with the impact head, and the side wall is connected with the holder. The lower end of the impact head is of a cone structure and is made of quenched and tempered W6Mo5Cr4V2 high-speed steel. A magnetic head is embedded in the outer end of the holder in an interference mode. The magnetic head outer end face and the holder outer end face are located on the same plane. One end of the air passage penetrates through the lower end part of the impact head, and the other end of the air passage penetrates through the side wall of the impact body and is connected with the air pipe quick-change connector. According to the device, the transfer cost is reduced, hole wall materials are prevented from being damaged by high temperature, macroscopic scraps and microcosmic scraps are removed step by step, rapid operation of a single person is achieved, the labor intensity is reduced, online efficient removal of the cylinder body deep hole broken tool parts is achieved, the production efficiency is improved, the machining quality is guaranteed, and remarkable economic benefits and technical progress are achieved.

Description

Technical Field

[0001] This utility model relates to a tooling for removing broken parts during the machining of deep oil passage holes on the top surface of a cylinder block, belonging to the field of engine cylinder block manufacturing technology. Background Technology

[0002] In the machining of deep oil passage holes for cylinder blocks, since cylinder blocks are often made of metals such as cast iron or aluminum alloys, the presence of hard spots during the casting process can cause a sudden change in cutting resistance during tool cutting. This can lead to the cutting torque exceeding the tool's tolerance threshold, resulting in tool breakage. Simultaneously, metal chips generated during deep hole machining are difficult to remove effectively. Unremoved chips exacerbate friction between the tool and the hole wall, significantly increasing tool wear. When the tool wears to a certain extent, the cutting resistance further increases, also leading to tool breakage.

[0003] Traditional processes for handling broken tool accidents require transferring the workpiece to electrical discharge machining (EDM) equipment. This method suffers from technical drawbacks such as low processing efficiency, the high temperatures generated during processing affecting the properties of the hole wall material, and high processing costs. These drawbacks severely restrict the production efficiency and processing quality of deep hole machining in cylinder blocks. Therefore, there is an urgent need to develop a high-efficiency and low-cost tooling for removing broken tool parts. Utility Model Content

[0004] To address the problems existing in the background technology, this utility model provides a tooling for removing broken parts during the machining of deep oil passage holes on the top surface of a cylinder block.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for removing broken parts during the machining of deep oil passage holes on the top surface of a cylinder block, comprising an impact body and an impact head; the lower end of the impact body is fixedly connected to the upper end of the vertically arranged impact head, and the lower end of the impact head has a conical structure.

[0006] The sidewall of the impactor is fixedly connected to the inner end of the horizontally arranged retainer.

[0007] The outer end of the cage has an interference fit with a magnetic head.

[0008] The outer end face of the magnetic head and the outer end face of the cage are located on the same plane.

[0009] The impact body and the impact head are provided with interconnected air passages. One end of the air passage passes through the lower end of the impact head, and the other end of the air passage passes through the side wall of the impact body. The other end of the air passage is fixedly connected to the quick-connect air pipe connector.

[0010] The impact head is made of quenched and tempered W6Mo5Cr4V2 high-speed steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention allows for direct on-line repair, eliminating the need for transfer and electrical discharge machining, reducing transportation costs and preventing high-temperature damage to the hole wall material. The impact head uses quenched and tempered W6Mo5Cr4V2 high-speed steel to break up hard alloy chips, combined with magnetic head adsorption and compressed air blowing to remove macroscopic and microscopic debris in stages. The modular design reduces manufacturing costs, and the interference fit magnetic head extends service life. The cage also functions as an operating handle, and the quick-change air hose allows for rapid single-person operation, reducing labor intensity. This invention enables efficient online removal of broken parts in deep holes of cylinders, improving production efficiency, ensuring processing quality, and demonstrating significant economic benefits and technological advancements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0015] A tooling for removing broken parts during machining of deep oil passage holes on the top surface of a cylinder block includes an impact body 1 and an impact head 5; the lower end of the impact body 1 is fixedly connected to the upper end of the vertically arranged impact head 5 by a threaded connection, and the lower end of the impact head 5 has a conical structure.

[0016] The side wall of the impactor 1 is bonded and fixedly connected to the inner end of the horizontally arranged retainer 2. The retainer 2 can act as a handle for easy operation.

[0017] The outer end of the cage 2 is interference-fitted with a magnetic head 3.

[0018] The outer end face of the magnetic head 3 and the outer end face of the cage 2 are located on the same plane to avoid wear and tear on the magnetic head 3 and extend its service life.

[0019] The impact body 1 and the impact head 5 are provided with interconnected air passages. One end of the air passage passes through the lower end of the impact head 5, and the other end of the air passage passes through the side wall of the impact body 1. The other end of the air passage is fixedly connected to the quick-connect air pipe connector 4 by threaded connection.

[0020] The impact head 5 is made of a material capable of breaking a cemented carbide blade to ensure its functionality, such as quenched and tempered W6Mo5Cr4V2 high-speed steel, which has good impact toughness.

[0021] The working process of this utility model is as follows:

[0022] S1: Insert the impact head 5 into the hole of the broken tool cylinder. The worker wears goggles and uses a hammer to strike the impact body 1. Under the action of the hammer, the impact head 5 rushes towards the broken carbide drill tip, causing the carbide drill tip to shatter.

[0023] S2: Pull out the tooling and rotate it 90°, insert the magnetic head 3 into the hole of the broken tool cylinder to adsorb the hard alloy chips;

[0024] S3: Repeat S1-S2 until macroscopic debris is removed;

[0025] S4: Tilt the cylinder body to make the broken knife cylinder body hole horizontal, insert the impact head 5 into the broken knife cylinder body hole again, and connect compressed air through the air pipe quick-change connector 4 to blow away the small debris.

[0026] S5: Use a probe to check the cleanliness of the hole to ensure there are no residual debris.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cylinder top surface deep oil passage hole processing broken tool piece removal tool, characterized by: It comprises an impact body (1) and an impact head (5); the lower end of the impact body (1) is fixedly connected with the upper end of the vertically arranged impact head (5), and the lower end of the impact head (5) is in a conical structure.

2. The tooling apparatus for removing a cutting insert from a deep pocket in the top surface of a cylinder as set forth in claim 1, wherein: The side wall of the impact body (1) is fixedly connected with the inner end of the horizontally arranged holder (2).

3. The tooling for removing broken parts during machining of deep oil passage holes on the top surface of a cylinder block according to claim 2, characterized in that: The outer end of the holder (2) is interference embedded with a magnetic head (3).

4. The tooling apparatus of claim 3, wherein: The outer end surface of the magnetic head (3) is located in the same plane with the outer end surface of the holder (2).

5. The tooling for removing broken parts during machining of deep oil passage holes on the top surface of a cylinder block according to claim 2, characterized in that: The inside of the impact body (1) and the impact head (5) is provided with a communication arranged air channel, one end of the air channel penetrates through the lower end of the impact head (5), the other end of the air channel penetrates through the side wall of the impact body (1), and the other end of the air channel is fixedly connected with an air tube quick change connector (4).

6. The tooling apparatus of claim 2, wherein: The material of the impact head (5) is quenched and tempered W6Mo5Cr4V2 high speed steel.

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