Crankshaft machining cutter row with fine adjustment function

Abstract

The crankshaft machining cutter row with the fine adjustment function comprises a cutter holder, an installation face is arranged on the front portion of the cutter holder, and a row of cutter body installation positions are formed on the installation face. Each cutter body mounting position is composed of a first screw hole and a second screw hole which are formed front and back and is provided with a cutter body in a one-to-one correspondence manner; the virtual plane where the axes of the first screw holes are located is parallel to the virtual plane where the axes of the second screw holes are located. An adjusting bolt with the head in a circular truncated cone shape is connected into the second screw hole in a bolted mode. Kidney-shaped holes are formed in the middle of the cutter body, and cutter body bolts penetrate through the kidney-shaped holes in a one-to-one correspondence mode to be connected with the first screw holes so that the cutter body can be selectively fixed to the installation face. The lower portion of the cutter body is matched with the peripheral face of the head of the adjusting bolt and abuts against the peripheral face. A blade seat is arranged at the outer end of the cutter body in a concave mode, and a blade is assembled on the blade seat. The cutter has the advantages that when the adjusting bolt is screwed in / out, the front-back position of the cutter body on the cutter holder can be adjusted, and therefore accurate fine adjustment of the position of the blade is achieved.

Description

Technical Field

[0001] This utility model relates to auxiliary workpieces for crankshaft machining, and more particularly to a crankshaft machining tool rack with fine-tuning function. Background Technology

[0002] The crankshaft is an important component of the crankshaft of large marine diesel engines, and the machining efficiency of the crankshaft is directly related to the production capacity of large marine diesel engine crankshafts.

[0003] In the machinery industry, cutting tools are indispensable for machining mechanical parts. However, the selection of cutting tools requires consideration of numerous factors during the machining process. A common cutting tool mainly consists of a tool holder, a tool body, and inserts. The tool body is fixed to the tool holder by tightening bolts, and the inserts are fixed to the tool body, forming a complete cutting tool. However, when this type of cutting tool is used for machining large marine crankshafts, single-tool machining is time-consuming and inefficient. For these reasons, the industry currently commonly uses a tool bar system for machining large crankshafts. A tool bar system consists of a row of tool bodies mounted on a tool holder, with inserts mounted on each tool body. This structure allows multiple inserts to work simultaneously, greatly improving production efficiency. However, in the above-mentioned machining tool structure, the installation positions of the tool body and inserts are fixed. Theoretically, all insert tips should be on the same plane, but in actual use, due to factors such as precision and wear, the insert tips do not always remain on the same plane.

[0004] Therefore, it is necessary to improve existing technologies. Utility Model Content

[0005] The purpose of this utility model embodiment is to address the shortcomings of existing technology structures by proposing a crankshaft machining tool holder with fine-tuning function. By installing an adjusting bolt with a frustum-shaped head on the tool holder and setting a slope surface at the lower part of the tool body that matches the shape of the adjusting bolt head, the tool body can be adjusted to the front and rear position on the tool holder when the adjusting bolt is screwed in / out, thereby achieving precise fine-tuning of the blade position.

[0006] To achieve the aforementioned objectives of this utility model, the crankshaft machining tool rack with fine-tuning function proposed in this embodiment is implemented through the following technical solution:

[0007] A crankshaft machining tool holder with fine-tuning function includes a tool holder, characterized in that: the front part of the tool holder has a mounting surface, on which a row of tool body mounting positions are formed; each tool body mounting position is composed of a first screw hole and a second screw hole arranged front and rear, and a tool body is mounted thereon in a corresponding manner; the virtual plane containing the axes of the first screw holes and the virtual plane containing the axes of the second screw holes are parallel; an adjusting bolt with a frustum-shaped head is bolted into the second screw hole; a waist hole is provided in the middle of the tool body, and the tool body bolt passes through the waist hole and connects to the first screw hole in a corresponding manner to selectively fix the tool body on the mounting surface; the lower part of the tool body is adapted to and abuts against the outer peripheral surface of the head of the adjusting bolt; a blade holder is recessed at the outer end of the tool body, and a blade is mounted on the blade holder.

[0008] The front of the tool holder is provided with a step bounded by mutually perpendicular side walls and bottom walls. The side walls form the mounting surface, and the width of the bottom wall is adapted to the thickness of the tool body.

[0009] The outer end face of the head of the adjusting bolt forms the large circle of a frustum.

[0010] The lower part of the blade body is a sloped surface that matches the angle of the frustum head of the adjusting bolt.

[0011] The waist hole is a countersunk, elongated waist hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model proposes a crankshaft machining tool holder with fine adjustment function. By installing an adjusting bolt with a frustum-shaped head on the tool holder and setting a slope surface at the lower part of the tool body that matches the shape of the adjusting bolt head, the tool body can be adjusted to the front and rear position on the tool holder when the adjusting bolt is screwed in / out, thereby realizing precise fine adjustment of the blade position. Attached Figure Description

[0013] The above features and advantages of the present invention will become clearer and easier to understand from the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0014] Figure 1 This is a front view of a crankshaft machining tool rack with fine-tuning function according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 A sectional view along line AA. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] The terms "front," "rear," "left," "right," "inner," and "outer" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0018] In the description of the following embodiments, unless otherwise expressly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] See Figure 1-2 As shown in the figure, this utility model embodiment proposes a crankshaft machining tool holder with fine-tuning function, which includes a tool holder 1 constituting the main body of the tool. According to the machining direction of the tool, the tool holder 1 can be divided into two parts: a front part (tool head) and a rear part. The rear part of the tool holder 1 is used for assembly with the machine tool tool plate.

[0020] The front of the tool holder 1 is provided with a step, which is bounded by the side wall 11 and the bottom wall 12, which are perpendicular to each other. The side wall 11 forms the mounting surface, while the width of the bottom wall 12 is adapted to the thickness of the tool body 2 mounted on the step.

[0021] A row of tool mounting positions is formed on the side wall 11. Each tool mounting position consists of a first screw hole 13 and a second screw hole 14 arranged at the front and rear, and a tool 2 is installed in each position. The axes of the first screw holes 13 are located on the same virtual plane, and the axes of the second screw holes 14 are located on another virtual plane, and the two virtual planes are parallel.

[0022] An adjusting bolt 3 is bolted into the second screw hole 14. The head of the adjusting bolt 3 is shaped like a frustum. In a preferred embodiment, the outer end face of the head of the adjusting bolt 3 forms the larger circle of the frustum.

[0023] The cutter body 2 has a waist hole 21 in the middle, which is a countersunk long waist hole set along the front and back direction of the cutter holder 1. The cutter body bolts 4 pass through the waist hole 21 and connect to the first screw hole 13 to selectively fix the cutter body to the side wall 11. With this structure, the front and back position of the cutter body 2 on the cutter holder 1 can be adjusted.

[0024] The outer end of the blade body 2 is recessed with a blade holder, and the blade 5 is mounted on the blade holder.

[0025] The lower part of the cutter body 2 is adapted to the outer peripheral surface of the adjusting bolt head 3 and rests against the outer peripheral surface of the adjusting bolt head 3. In a preferred embodiment, the lower part of the cutter body 2 is a sloped surface that matches the frustum angle of the adjusting bolt head 4.

[0026] With the above structure, when the adjusting bolt 3 is screwed in / out, the frustum at its head can be considered to move up and down along the axis of the second screw hole 14. The blade body 2, which is in contact with it, moves back and forth on the tool holder accordingly. During adjustment, the blade body bolt 4 is first unscrewed a small section to loosen the blade body 2. Then, the adjusting bolt 3 is screwed in / out. When the blade body 2 is adjusted to the appropriate position, the blade body bolt 4 is tightened to fix the blade body 2 on the tool holder 1, thus achieving precise fine-tuning of the blade position.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model proposes a crankshaft machining tool holder with fine adjustment function. By installing an adjusting bolt with a frustum-shaped head on the tool holder and setting a slope surface at the lower part of the tool body that matches the shape of the adjusting bolt head, the tool body can be adjusted to the front and rear position on the tool holder when the adjusting bolt is screwed in / out, thereby realizing precise fine adjustment of the blade position.

[0028] The present invention has been described in detail above through embodiments. However, those skilled in the art will understand that the above embodiments are only one of the preferred embodiments of the present invention. Due to space limitations, not all embodiments can be listed here. Any implementation that can embody the technical solution of the claims of the present invention is within the protection scope of the present invention.

[0029] It should be noted that the above content is a further detailed description of the present utility model in conjunction with specific embodiments, and it should not be considered that the specific embodiments of the present utility model are limited to this. Under the guidance of the above embodiments, those skilled in the art can make various improvements and modifications based on the above embodiments, and these improvements or modifications fall within the protection scope of the present utility model.

Claims

1. A crankshaft machining tool row with fine-tuning function, including a tool holder, characterized in that: The front part of the knife seat has a mounting surface, and a row of knife body mounting positions are formed on the mounting surface; each knife body mounting position is composed of a first screw hole and a second screw hole arranged at the front and rear, and a knife body is mounted thereon in a one-to-one manner; the virtual plane where the axes of the first screw holes are located is parallel to the virtual plane where the axes of the second screw holes are located; an adjusting bolt with a truncated cone-shaped head is bolted into the second screw hole; a waist hole is provided in the middle part of the knife body, and the knife body bolts pass through the waist hole and are connected to the first screw hole in a one-to-one manner to selectively fix the knife body on the mounting surface; the lower part of the knife body is adapted to and abuts against the outer circumferential surface of the adjusting bolt head; a blade seat is recessed at the outer end of the knife body, and a blade is mounted on the blade seat.

2. The crankshaft machining tool row with fine-tuning function according to claim 1, characterized in that: The front part of the knife seat is provided with a step bounded by mutually perpendicular side walls and bottom walls, the side walls constitute the mounting surface, and the width of the bottom wall is adapted to the thickness of the knife body.

3. The crankshaft machining tool row with fine adjustment function according to claim 1, characterized in that: The outer end surface of the head of the adjusting bolt forms a large circle of the frustum.

4. A crankshaft machining tool row with fine-tuning function according to any one of claims 1 to 3, characterized in that: The lower part of the knife body is a slope surface that matches the angle of the frustum of the adjusting bolt head.

5. The crankshaft machining tool row with fine adjustment function according to claim 4, characterized in that: The waist hole is a countersunk long waist hole.

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