An extended tool holder

Abstract

The utility model provides a kind of lengthened tool holder, belong to tool turret tool holder technical field.It solves the existing tool holder length shorter, after installing tool, when the inner hole of processing barrel type part, there is tool easy to shake sword, cannot satisfy the processing quality problem.This lengthened tool holder includes body, body is L-shaped, the short side of body is blocky, the short side of body is used to be fixed with tool turret, the long side of body is cuboid, the length of long side is greater than the length of short side, the outer end of long side has the embedding slot for installing tool, embedding slot side slot wall middle interval is provided with several through and for fastener to set the fixing hole.This lengthened tool holder has the advantage that tool can process the inner hole of barrel type part.

Description

Technical Field

[0001] This utility model belongs to the field of turret tool holder technology, and relates to an extended tool holder. Background Technology

[0002] The turret is used to mount the tool holder, which in turn holds the cutting tool. Existing tool holders are typically block-shaped and relatively short, placing the cutting tool close to the turret. When machining the inner bore of cylindrical parts on a vertical lathe, the tool tip often needs to be fixed to the tool holder, keeping the tool head away from the holder. This results in a longer tool overhang, reducing tool stability and causing vibration, which compromises machining quality. Furthermore, when the inner bore of the part has steps, reverse turning is required, and tools with this structure cannot traverse large steps, making machining impossible. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing an extended tool holder, which solves the technical problem of how to enable the tool to process the inner hole of cylindrical parts.

[0004] The objective of this utility model can be achieved through the following technical solution: an extended tool holder, comprising a body, characterized in that the body is L-shaped, the short side of the body is block-shaped, the short side of the body is used to be fixedly connected to the tool turret, the long side of the body is cuboid-shaped, the length of the long side is greater than the length of the short side, the outer end of the long side has an embedding groove for mounting the tool, and a plurality of through fixing holes for fasteners to pass through are provided at intervals in the groove wall on one side of the embedding groove.

[0005] The short side of this extended tool holder is fixedly connected to the tool turret, and the tool portion is embedded in the insertion groove at the outer end of the long side. Fasteners such as bolts are inserted into the fixing holes and abut against the tool, thus securing the tool to the extended tool holder. This allows for quick tool changes and adaptability to various machining conditions. The body is L-shaped, with the long side longer than the short side, effectively extending the tool length. This allows for proper tool installation and insertion into the inner bore of cylindrical parts, improving tool stability, reducing tool vibration, and enabling reverse turning even when the inner bore of the part has steps, meeting machining needs and improving machining quality. The short side is block-shaped, and the long side is cuboid, providing sufficient strength for the extended tool holder while maintaining a simple structure and low cost.

[0006] In the aforementioned extended tool holder, the insert groove is eccentrically positioned, and the distance between the insert groove and the outer wall of one side of the long side is greater than the distance between the insert groove and the outer wall of the other side of the long side. With this structure, when the tool is embedded and fixed in the insert groove, the tool tip is positioned at the center of the long side, facilitating tool setting and improving machining quality.

[0007] In one of the extended tool holders described above, the outer wall on the other side of the long side protrudes outward. This structure compensates for the thinness of the other side of the long side, thereby improving the strength of the extended tool holder.

[0008] In one of the extended tool holders described above, the length of the longer side is 1.5 to 3 times the length of the shorter side. This structure ensures that the extended tool holder has sufficient strength while maximizing its length.

[0009] In one of the extended tool holders described above, the outer wall of the connection between the long side and the short side has an inclined connecting surface, which is inclined outward along the direction from the long side to the short side. This structure can enhance the strength of the connection, thereby increasing the length of the extended tool holder.

[0010] In one of the extended tool holders described above, a recessed clearance groove is provided at the middle of the short side corner, through which a fastener passes. The fastener can be rotated at the clearance groove using a wrench to secure the extended tool holder to the turret.

[0011] Compared with the prior art, the extended tool holder provided by this utility model has the following advantages:

[0012] 1. The body of this extended tool holder is L-shaped, with the length of the long side being greater than the length of the short side. This is equivalent to extending the length of the tool, allowing the tool to be inserted into the inner hole of cylindrical parts for machining. It is less prone to tool vibration and can be used for reverse turning when there are steps in the inner hole of the part, thus meeting machining needs and improving machining quality.

[0013] 2. The eccentric setting of the embedding groove of this extended tool holder ensures that when the tool is embedded and fixed in the embedding groove, the tool tip is located at the center of the long side, which facilitates tool setting and improves machining quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the extended tool holder after the tool is installed.

[0015] Figure 2 This is a schematic diagram of the overall structure of the extended tool holder and an enlarged view of the embedded groove.

[0016] In the figure, 1 is the body; 11 is the short side; 12 is the long side; 2 is the embedding groove; 3 is the fixing hole; 4 is the connecting surface; 5 is the clearance groove; and 6 is the cutting tool. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1As shown, this extended tool holder includes a body 1, which is L-shaped.

[0019] The short side 11 of the body 1 is block-shaped. The short side 11 of the body 1 is used to be fixedly connected to the turret. The turret is existing technology, and its specific structure will not be described in detail. There is a recessed relief groove 5 at the middle of the corner of the short side 11. The relief groove 5 allows fasteners such as bolts to pass through.

[0020] The long side 12 of the main body 1 is rectangular, such as Figure 2 As shown, the outer end of the long side 12 has an embedding groove 2 for mounting the tool 6. The embedding groove 2 is eccentrically positioned, and the distance between the embedding groove 2 and the outer wall of one side of the long side 12 is greater than the distance between the embedding groove 2 and the outer wall of the other side of the long side 12. The outer wall of the other side of the outer end of the long side 12 protrudes outward. In this embodiment, four through fixing holes 3 for fasteners such as bolts are provided at intervals in the groove wall on one side of the embedding groove 2. In actual production, the number of fixing holes 3 can be three or six.

[0021] In this embodiment, the length of the long side 12 is 2.25 times the length of the short side 11. In actual production, the length of the long side 12 is 1.5 times or 3 times the length of the short side 11. The outer wall of the connection between the long side 12 and the short side 11 has an inclined connecting surface 4, which is inclined outward along the direction from the long side 12 toward the short side 11.

[0022] During installation, the extended tool holder is fixed to the tool turret via the short side 11, and then the tool 6 is inserted into the insertion groove 2 and locked with fasteners such as bolts.

[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0024] Although this document frequently uses terms such as body 1, short side 11, long side 12, embedding groove 2, fixing hole 3, connecting surface 4, clearance groove 5, and cutting tool 6, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. An extended tool holder, comprising a body (1), characterized in that, The body (1) is L-shaped, the short side (11) of the body (1) is block-shaped, the short side (11) of the body (1) is used to be fixedly connected to the turret, the long side (12) of the body (1) is cuboid-shaped, the length of the long side (12) is greater than the length of the short side (11), the outer end of the long side (12) has an embedding groove (2) for installing the cutting tool (6), and a number of through fixing holes (3) for fasteners to pass through are provided at intervals on one side of the groove wall of the embedding groove (2).

2. The extended tool holder according to claim 1, characterized in that, The embedding groove (2) is eccentrically positioned, and the distance between the embedding groove (2) and the outer wall on one side of the long side (12) is greater than the distance between the embedding groove (2) and the outer wall on the other side of the long side (12).

3. An extended tool holder according to claim 2, characterized in that, The outer side wall on the other side of the long side (12) protrudes outward.

4. An extended tool holder according to claim 1, 2, or 3, characterized in that, The length of the long side (12) is 1.5 to 3 times the length of the short side (11).

5. An extended tool holder according to claim 1, 2, or 3, characterized in that, The outer wall of the connection between the long side (12) and the short side (11) has an inclined connection surface (4), which is inclined outward along the direction of the long side (12) toward the short side (11).

6. An extended tool holder according to claim 1, 2, or 3, characterized in that, The short side (11) has a recessed clearance groove (5) at the middle of the corner, through which fasteners pass.

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