Cutter sheath capable of adjusting machining range of damping cutter

Abstract

The utility model discloses a knife pouch capable of adjusting the machining range of a damping knife, which comprises a knife pouch body, the knife pouch body comprises an adjusting part used for being connected with a knife and a fixing part used for being connected with a knife holder, the adjusting part is provided with a placing hole used for placing the knife and is detachably connected with the knife, and the fixing part is connected with the knife holder. The center line of the containing hole and the center line of the cutter sleeve body are not collinear, so that the wall thickness of the adjusting part is different in the circumferential direction, and the highest point of the thinnest position of the wall thickness of the adjusting part is lower than a cutter point of a cutter. According to the cutter sleeve capable of enabling the machining range of the damping cutter to be adjustable, the machining range of the damping cutter can be effectively widened, and machining cost is saved while machining precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of deep hole machining equipment technology, and in particular to a tool holder that allows the machining range of a vibration damping tool to be adjusted. Background Technology

[0002] The difficulty of machining the inner hole of a part is closely related to its length-to-diameter ratio (L / D ratio). The larger the L / D ratio, the greater the machining difficulty and the harder it is to guarantee accuracy. Currently, the industry defines inner holes with an L / D ratio greater than 4 (i.e., the inner hole length is greater than 4 times its diameter) as slender holes. The most common problem in machining slender holes is tool vibration, which directly affects the hole's accuracy. To meet the machining requirements of slender holes, vibration-damping tools are usually used. Currently, Sandvik is a leading brand in vibration-damping tool technology in the industry. Taking this brand as an example, the standard tool specifications are 7, 10, and 14 times the diameter. The higher the diameter multiple, the higher the tool price. For example, for an 80mm diameter part, a 10 times diameter tool costs 72,000 RMB, while a 14 times diameter tool costs as much as 520,000 RMB, increasing the procurement cost by 622%. Assuming that the inner hole L / D ratio of a deep hole part is 11, if a 10 times diameter tool is selected, the machining accuracy cannot be met. If a 14 times diameter tool is selected, the machining cost will be further increased, further compressing the product's profit margin, which is not the optimal mass production method for enterprises.

[0003] Therefore, how to improve the machining range of the vibration damping tool is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a tool holder that allows the machining range of the vibration damping tool to be adjusted. It can effectively increase the machining range of the vibration damping tool, and save machining costs while ensuring machining accuracy.

[0005] The technical solution provided by this utility model is as follows:

[0006] A tool holder that allows for adjustable machining range of a vibration damping tool includes a tool holder body. The tool holder body includes an adjustment part for connecting with a cutting tool and a fixing part for connecting with a tool holder. The adjustment part has a placement hole for placing the cutting tool and is detachably connected to the cutting tool. The center line of the placement hole is not collinear with the center line of the tool holder body, resulting in different wall thicknesses of the adjustment part along the circumferential direction. The highest point of the thinnest part of the adjustment part is lower than the tip of the cutting tool.

[0007] Preferably, the adjusting part is provided with an adjusting groove along its length and communicating with the placement hole. The adjusting groove is located at the thickest part of the adjusting part wall. The adjusting part is also provided with a threaded hole that passes through the adjusting groove, and a screw is provided in the threaded hole.

[0008] Preferably, the adjusting part is provided with a countersunk platform, and the starting end of the threaded hole is located in the countersunk platform.

[0009] Preferably, the number of countersunk platforms is not less than two, and the number of threaded holes is the same as the number of countersunk platforms.

[0010] Preferably, the fixing part is provided with a through groove that matches the adjustment groove and a hole or groove that matches the placement hole.

[0011] Preferably, the fixing part is detachably connected to the tool holder.

[0012] Preferably, the fixing part extends into the fixing hole on the tool holder and is fixed by a locking screw.

[0013] Preferably, the fixing part and the tool holder are an integral structure.

[0014] This invention has the following advantages over the prior art:

[0015] The tool holder of this utility model, which allows for an adjustable machining range of the vibration damping tool, can be assembled with a standard tool holder and vibration damping tool purchased from the market through mechanical locking. Through the structural design of the adjustment part, the adjustment part can directly enter the inner hole of the part while clamping the tool. Without reducing the tool clamping length, the machining depth range of the tool is increased, thereby improving the machining capability of ordinary vibration damping tools and reducing the processing cost of mass production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the tool sleeve that allows the processing range of the shock-absorbing tool to be adjusted in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjusting part in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the pre-assembly of the tool holder, tool, and tool holder, which allows the machining range of the shock-absorbing tool to be adjusted, in an embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the tool holder, tool, and tool holder after assembly, which allows the processing range of the shock-absorbing tool to be adjusted, in an embodiment of this utility model.

[0021] Figure 5This is a schematic diagram of the structure of the tool holder, which allows the machining range of the vibration damping tool to be adjusted, when assembled with the tool and tool holder for turning in this embodiment of the present invention.

[0022] Figure label:

[0023] 1. Tool holder body; 11. Adjustment part; 111. Placement hole; 112. Adjustment groove; 113. Threaded hole; 114. Countersunk platform; 115. Screw; 12. Fixing part; 121. Through groove; 2. Tool; 3. Tool holder; 4. Locking screw. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0025] Example 1:

[0026] like Figure 1-5 As shown, this utility model embodiment provides a tool holder that allows the processing range of a vibration damping tool to be adjusted. It includes a tool holder body 1, which includes an adjustment part 11 for connecting with a tool 2 and a fixing part 12 for connecting with a tool holder 3. The adjustment part 11 is provided with a placement hole 111 for placing the tool 2 and is detachably connected to the tool 2. The center line of the placement hole 111 is not collinear with the center line of the tool holder body 1, and the wall thickness of the adjustment part is different along the circumferential direction. The highest point of the thinnest part of the adjustment part 11 is lower than the tip of the tool 2.

[0027] In this embodiment, the centerline of the placement hole 111 is not collinear with the centerline of the tool holder body 1 (an irregular design with an eccentric arc), resulting in a different wall thickness of the adjustment part 11 along the circumference. This design with different wall thicknesses ensures that, after the tool 2 is clamped, the highest point of the tool holder body 1 at the thinner wall is lower than the height of the tool tip after clamping. In this way, the tool holder body 1 will not affect the machining effect of the tool 2 due to its own wall thickness.

[0028] In this embodiment, the adjusting part 11 is provided with an adjusting groove 112 that runs along its length and communicates with the placement hole 111. The presence of the adjusting groove 112 allows the diameter of the placement hole 111 to be adjusted within a certain range, making it easier for the tool 2 to penetrate into the placement hole 111. The adjusting groove 112 is located at the thickest part of the wall of the adjusting part 11. The adjusting part 11 is also provided with a threaded hole 113 that passes through the adjusting groove 112. The adjusting part 11 is provided with a countersunk platform 114. The starting end of the threaded hole 113 is located in the countersunk platform 114. A screw 115 is provided in the threaded hole 113, and the tool 2 can be locked in the placement hole 111 by means of the screw 115.

[0029] In this embodiment, there are no fewer than two countersunk plates 114, and the number of threaded holes 113 is the same as the number of countersunk plates 114. The design of the countersunk plates 114 ensures that the head of the screw 115 is not higher than the outer surface of the adjustment part 11, thereby avoiding the influence of the presence of the screw 115 on the cutting operation of the tool 2.

[0030] In this embodiment, the fixing part 12 is provided with a through groove 121 that matches the adjustment groove 112 and a hole or groove that matches the placement hole 111. In order to better fix the tool 2, one end of the tool 2 can be inserted into the hole or groove in the fixing part 12.

[0031] In this embodiment, the fixing part 12 extends into the fixing hole on the tool holder 3 and is fixed by the locking screw 4.

[0032] In this embodiment, the material of the blade sheath body 1 can be alloy structural steel such as 35CrMo or 42CrMo. This type of material has high tensile strength and can ensure a certain rigidity, thereby ensuring the shock absorption effect of the blade sheath body 1.

[0033] In this embodiment, the adjustable tool holder for the vibration damping tool is used by inserting the fixing part 12 into the tool holder 3 and locking the fixing part 12 with the locking screw 4. The adjusting part 11 is placed outside the tool holder 3, and one end of the tool 2 is inserted into the placement hole 111 and fixed with the screw 115. Because the highest point of the thinnest part of the adjusting part 11 is lower than the tip of the tool 2, the adjusting part 11 can directly enter the inner hole of the part (e.g., ...) while clamping the tool 2. Figure 5 This increases the machining range of tool 2.

[0034] Example 2:

[0035] The difference between this embodiment and embodiment 1 is that the fixing part 12 and the tool holder 3 are an integral structure, while the rest is the same as in embodiment 1.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool holder that allows for adjustable machining range of a vibration damping tool, comprising a tool holder body, characterized in that, The tool holder body includes an adjustment part for connecting with a tool and a fixing part for connecting with a tool holder. The adjustment part is provided with a placement hole for placing the tool and is detachably connected to the tool. The center line of the placement hole is not collinear with the center line of the tool holder body, so the wall thickness of the adjustment part is different along the circumferential direction. The highest point of the thinnest part of the adjustment part is lower than the tip of the tool. The adjusting part is provided with an adjusting groove along its length and communicating with the placement hole. The adjusting groove is located at the thickest part of the adjusting part wall. The adjusting part is also provided with a threaded hole that passes through the adjusting groove, and a screw is provided in the threaded hole.

2. The tool holder according to claim 1, which allows for adjustable machining range of the vibration damping tool, is characterized in that, The adjusting part is provided with a countersunk platform, and the starting end of the threaded hole is set inside the countersunk platform.

3. The tool holder according to claim 2, which allows for adjustable machining range of the vibration-damping tool, is characterized in that... The number of countersunk platforms is no less than two, and the number of threaded holes is the same as the number of countersunk platforms.

4. The tool holder according to claim 1, which allows the machining range of the vibration damping tool to be adjustable, is characterized in that, The fixing part is provided with a through groove that matches the adjustment groove and a hole or groove that matches the placement hole.

5. The tool holder according to any one of claims 1-4, which allows the machining range of the vibration damping tool to be adjusted, characterized in that, The fixing part is detachably connected to the tool holder.

6. The tool holder according to claim 5, which allows for adjustable machining range of the vibration damping tool, is characterized in that, The fixing part extends into the fixing hole on the tool holder and is fixed by the locking screw.

7. The tool holder according to any one of claims 1-4, which allows the machining range of the vibration damping tool to be adjusted, is characterized in that, The fixing part and the tool holder are an integral structure.

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