Tool for trimming channels in castings
By providing a tool including a flexible shaft, a grinding head and a connector, the problem of difficulty in trimming the engine block passage is solved, and the trimming of the casting passage is achieved at any position to prevent the casting from scrapping.
Patent Information
- Application Number
- CN202420548040.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the casting process of the engine cylinder, the travel route of the channel is tortuous, making it difficult to get close to the defective position of the channel, and the effective dressing cannot be carried out, resulting in the scrapping of the castings.
A tool is provided, including a flexible shaft, a grinding head and a connector, through which arbitrary locations are approached to the passage of the casting and trimmed with a grinding head.
The tool is able to effectively approach and trim any location of the casting passage, prevent castings from scrapping and adapt to channels of various shapes and sizes.
Smart Images
Figure CN222696814U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a tool for trimming a channel of a casting. Background Art
[0002] For example, in the manufacturing process of an engine, it is usually necessary to form an engine block by casting. The engine block usually contains a plurality of channels, such as oil channels or water channels. The paths of these channels of the engine block are often not straight, but may include one or more bends.
[0003] During the casting process of the engine block, for example, due to the breakage of the core rod, the casting material flows into the core rod gap, which may cause casting defects at certain positions of the channel, especially causing the channel to be "blocked". Therefore, the channel needs to be "unblocked".
[0004] However, as mentioned above, since the path of the passage is tortuous, that is, irregular, it is often impossible to approach the location where the defect occurs in the passage, so that the passage cannot be repaired. This may cause the entire engine block to be scrapped.
[0005] For this reason, it is necessary to develop a tool that can access any position of the channel of the casting and trim the channel there, thereby preventing the casting (such as the engine block) from being scrapped. Utility Model Content
[0006] Therefore, an object of the present disclosure is to provide a tool for trimming a channel of a casting, which can access any position of the channel of the casting and trim the channel there, thereby preventing the casting (such as an engine block) from being scrapped.
[0007] Therefore, the present disclosure provides a tool for trimming a channel of a casting, characterized in that the tool comprises: a flexible shaft; a grinding head connected to one end of the flexible shaft; and a connector connected to the other end of the flexible shaft.
[0008] Therefore, by using the tool disclosed in the present invention, it is possible to use the flexible shaft to approach any position of the channel of the casting and use the grinding head to trim the channel there, thereby preventing the casting (such as the engine block) from being scrapped.
[0009] In some embodiments, the flexible shaft comprises a cardan-jointed flexible shaft or a wound-wire flexible shaft or a combination of the two. Thus, the flexible shaft can be realized simply and at low cost.
[0010] In some embodiments, the grinding head is detachably connected to the flexible shaft, so that a suitable grinding head can be selected for replacement as needed, and a new grinding head can be replaced when the grinding head is worn.
[0011] In some embodiments, the grinding head includes a spherical grinding head, and / or a cylindrical grinding head with a circular or polygonal cross section, and / or a hook-shaped grinding head, so that the grinding head can be adapted to channels of different positions, shapes and sizes.
[0012] In some embodiments, the material strength of the grinding head is greater than or equal to the material strength of the casting, so that the grinding head can easily grind the channel of the casting.
[0013] In some embodiments, the connector can be connected to a motor, so as to be driven to rotate by the motor, thereby being able to drive the tool to rotate quickly and with high power.
[0014] In some embodiments, the tool further comprises: a protector connected between the flexible shaft and the connector, the protector being able to abut against the entrance of the channel of the casting, thereby the surface around the entrance of the channel of the casting can be protected by the protector.
[0015] In some embodiments, the protector is made of rubber. Thus, the protector can be realized simply and cost-effectively.
[0016] In some embodiments, the protector comprises a conical plug section and / or a cylindrical plug section. Thus, protectors of different shapes can be used to protect the casting surface.
[0017] In some embodiments, the casting is an engine block. The tool disclosed herein is particularly suitable for an engine block having a channel extending in a tortuous shape.
[0018] It can be seen that the tool of the present invention is easy to operate and move, and can easily approach any position of the channel of the casting and trim the channel there, thereby preventing the casting from being scrapped. Moreover, the tool of the present invention can be adapted to various channels of various castings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only used for the purpose of illustrating preferred embodiments and are not considered to be limitations of the present disclosure. Moreover, in all the drawings, the same reference numerals are used to represent the same components. All drawings are not shown to scale and may even be exaggerated, and are only for illustrative purposes. In the drawings:
[0020] Figure 1 is a schematic diagram of a tool for trimming a channel of a casting according to an embodiment of the present disclosure;
[0021] Figure 2A yes Figure 1 A schematic diagram of an alternative embodiment of a grinding head of a tool;
[0022] Figure 2B yes Figure 1 Schematic diagram of another alternative embodiment of a grinding head for a tool. DETAILED DESCRIPTION
[0023] The following description sets forth specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.
[0024] The expression "and / or" is used in this article to mean that at least one of the components listed before and after the expression is included. Moreover, the expression "connected / coupled" is used to mean that it includes direct connection with another component or indirect connection through another component. The singular form in this article also includes the plural form unless specifically mentioned in the wording. Moreover, the components, steps, operations and elements involved in "including" or "comprising" used in this article mean that at least one other component, step, operation and element exists or is added.
[0025] In the description of the embodiments of the present disclosure, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0026] As mentioned at the beginning of this article, during the casting process of a casting having a channel, for example, due to a broken core rod, a casting defect may occur at certain positions of the channel, in particular, the channel may be "blocked", so that the channel needs to be "unblocked". When the channel extends in a tortuous shape, it is often difficult to approach the defective position of the channel, so that the defect of the channel cannot be eliminated.
[0027] In view of this, the present disclosure aims to provide a tool for trimming a channel of a casting, which comprises a flexible shaft and a grinding head, so that the flexible shaft can be used to approach any position of the channel of the casting and the grinding head can be used to trim the channel there.
[0028] A tool 10 for trimming a channel of a casting according to an embodiment of the present disclosure will be described below with reference to the accompanying drawings.
[0029] First refer to Figure 1A tool 10 for trimming a channel of a casting according to an embodiment of the present disclosure may include a flexible shaft 100 , a grinding head 200 connected at one end of the flexible shaft 100 , and a connector 300 connected at the other end of the flexible shaft 100 .
[0030] The flexible shaft 100, also called a soft shaft, can be used to transmit rotational motion between the grinding head 200 and the connector 300. The flexible shaft 100 is not only flexible, but also has a certain torsional rigidity. The flexible shaft 100 can transmit motion and power over a long distance, and it is easy to move. Therefore, the flexible shaft 100 can approach any position of a channel that extends in a zigzag shape. The flexible shaft 100 can be provided with a covering layer or without any covering as required. The length of the flexible shaft 100 can also be selected as required.
[0031] The grinding head 200 can be used to grind the channel of the casting, in particular by means of a rotational motion transmitted by the flexible shaft 100. The grinding head 200 can have any geometric shape and size as required, in particular according to the position, shape and size of the channel. In this regard, it is known that the blocked part of the channel can be detected, for example, by X-ray using an endoscope, and has a certain thickness and strength.
[0032] The connector 300 can be driven to rotate, for example manually or by means of a motor, so that it can be set in rotation. Thus, the entire tool 10 can be set in rotation.
[0033] When using the tool 10 to trim the channel of the casting, the defective part of the channel of the casting can be first determined by using an endoscope. Then the grinding head 200 can be moved to the defective part of the channel of the casting by using the flexible shaft 100. Then the connector 300 can be driven to rotate, thereby driving the grinding head 200 to rotate, so that the grinding head 200 can grind the defective part of the channel.
[0034] Therefore, with the tool 10 of the present disclosure, any position of a channel of a casting can be accessed and the channel can be trimmed there, thereby preventing the casting (eg, an engine block) from being scrapped.
[0035] According to some embodiments of the present disclosure, the flexible shaft 100 may include a universal joint type flexible shaft or a winding type flexible shaft or a combination of the two. The flexible shaft 100 may include a plurality of shaft joints. The flexible shaft 100 may also include a wound steel wire (or steel belt) shaft. Thus, the flexible shaft 100 can be realized simply and at low cost.
[0036] According to some embodiments of the present disclosure, the grinding head 200 can be detachably connected to the flexible shaft 100. Therefore, a suitable grinding head 200 can be selected for replacement as needed, and a new grinding head can be replaced when the grinding head 200 is worn.
[0037] In an advantageous embodiment, the grinding head 200 may include a spherical grinding head, and / or a cylindrical grinding head with a circular or polygonal cross section, and / or a hook-shaped grinding head.
[0038] Further references Figure 2A and Figure 2B , which shows different alternative embodiments of the grinding head 200. Figure 1 In the embodiment, the grinding head 200 is configured as a spherical grinding head. Figure 2A In the embodiment, the grinding head 200 includes two cylindrical grinding heads 201 with hexagonal cross sections. Therefore, the grinding head 200 can be welded by two hexagonal nuts, for example. Figure 2B In the embodiment, the grinding head 200 includes a cylindrical grinding head 202 with a hexagonal cross section and a hook-shaped grinding head 203. Thus, the grinding head 200 can be adapted to channels of different positions, shapes and sizes.
[0039] In an advantageous embodiment, the material strength of the grinding head 200 may be (slightly) greater than or equal to the material strength of the casting. Thus, the grinding head 200 can easily grind the channel of the casting. If the material strength of the grinding head 200 is less than the material strength of the casting, it is difficult for the grinding head 200 to grind the channel of the casting. If the material strength of the grinding head 200 is much greater than the material strength of the casting, the grinding head 200 may gradually wear through. In addition, it should be noted that the rotation speed of the grinding head 200 will also affect its grinding strength.
[0040] According to some embodiments of the present disclosure, the connector 300 can be connected to a motor, so that it can be driven to rotate by the motor. The motor can be an electric drilling tool, such as an electric drill, to provide power, thereby being able to drive the tool 10 to rotate quickly and with high power.
[0041] According to some embodiments of the present disclosure, the tool 10 may further include a protector 400 connected between the flexible shaft 100 and the connector 300, which can be abutted against the entrance of the channel of the casting. The protector 400 can thus be used to protect the surface around the entrance of the channel of the casting (e.g., the crankshaft surface).
[0042] In an advantageous embodiment, the protector 400 can be made of rubber. As a result, the protector 400 can be realized simply and cost-effectively.
[0043] In an advantageous embodiment, the protector 400 may include a conical plug section 410 and / or a cylindrical plug section 420. Thus, protectors of different shapes may be used to protect the surface of the casting.
[0044] According to some embodiments of the present disclosure, the casting is an engine block. The engine block has a channel extending in a zigzag shape. The tool of the present disclosure may be particularly suitable for such a casting having a channel extending in a zigzag shape.
[0045] The tool disclosed herein can be easily operated and moved, and can easily approach any position of the channel of the casting and trim the channel there, thereby preventing the casting (such as an engine block) from being scrapped. Moreover, the grinding head can be selected as needed, so the tool disclosed herein can be adapted to various channels of various castings. At present, no other similar tool can achieve the advantages brought by the tool disclosed herein.
[0046] Although the present disclosure has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present disclosure. Any technical personnel in this field can make possible changes and modifications to the technical solution of the present disclosure by using the methods and technical contents disclosed above without departing from the spirit and scope of the present disclosure. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure shall fall within the protection scope of the technical solution of the present disclosure.
[0047] The features disclosed in this document may be implemented not only individually but also in any combination. It should also be noted that the various drawings of the present disclosure are schematic and may not be shown to scale. In various embodiments, the number, configuration and / or arrangement of components are also not limited to the examples shown. The values listed in the specification are only reference values, and may exceed or be lower than the reference values when the dimensions are appropriately selected.
Claims
1. A tool for trimming a channel of a casting, characterized in that The tool (10) comprises: Flexible shaft (100); a grinding head (200) connected to one end of the flexible shaft (100); A connector (300) is connected to the other end of the flexible shaft (100).
2. The tool according to claim 1, characterized in that The flexible shaft (100) comprises a universal joint type flexible shaft or a winding type flexible shaft or a combination of the two.
3. The tool according to claim 1, characterized in that The grinding head (200) is detachably connected to the flexible shaft (100).
4. The tool according to claim 1, characterized in that The grinding head (200) comprises a spherical grinding head, and / or a cylindrical grinding head with a circular or polygonal cross section, and / or a hook-shaped grinding head.
5. The tool according to claim 1, characterized in that The material strength of the grinding head (200) is greater than or equal to the material strength of the casting.
6. The tool according to claim 1, characterized in that The connector (300) can be connected to a motor, so as to be driven by the motor to rotate.
7. The tool according to any one of claims 1 to 6, characterized in that The tool (10) further comprises: a protector (400) connected between the flexible shaft (100) and the connector (300), wherein the protector (400) is capable of abutting against the entrance of the channel of the casting.
8. The tool according to claim 7, characterized in that The protector (400) is made of rubber.
9. The tool according to claim 7, characterized in that The protector (400) includes a conical plug section (410) and / or a cylindrical plug section (420).
10. The tool according to any one of claims 1 to 6, characterized in that The casting is an engine block.