Tool apron and tool

Abstract

The tool apron comprises a base body, a positioning pin and a pressing block, a groove is formed in one vertex of the base body, a blade is arranged in the groove, the groove comprises a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are both connected with the bottom wall, and the first side wall and the second side wall are connected with the pressing block. A first positioning groove and a second positioning groove are respectively formed in the first side wall and the second side wall; the positioning pin is inserted into the first positioning groove and the second positioning groove so that the side face of the positioning pin can abut against the blade, and gaps are formed between the blade and the first side wall and between the blade and the second side wall. The first end of the pressing block is fixedly connected with the base body, and the second end of the pressing block is used for abutting against the blade. On the basis, the positioning pin is inserted into the first positioning groove and the second positioning groove, so that the blade makes contact with the positioning pin instead of making contact with the first side wall or the second side wall, the direct contact area of the blade and the tool apron is reduced, friction and abrasion between the tool and the tool apron are reduced, and the shaking amplitude of the blade in the machining process is reduced; the machining precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing, and in particular to a tool holder and a tool. Background Art

[0002] During the machining process, a tool is needed to cut the workpiece. The tool includes a blade and a tool holder. The blade is clamped through the tool holder. In order to facilitate cutting, the hardness of the blade is relatively large. Therefore, the shaking of the blade during the machining process may scratch the tool holder. During long-term use, the tool holder is increasingly worn by the blade, which makes the clamping between the tool holder and the blade loose, causing the blade to shake during the machining process, resulting in a decrease in the tool machining accuracy.

[0003] At present, in order to improve the processing accuracy, the blade is usually fixed by multiple fixing methods. Among them, the patent with publication number CN208825579U proposes a multi-clamping combined turning blade, including a cutter head, an adapting groove is provided at the end of the cutter head, a blade is seated on the inner side of the adapting groove, a boss is integrally formed at the center of the upper and lower ends of the blade, a groove is provided on the upper surface of the adapting groove, and a slot is processed on the inner side of the end of the pressing sheet. The multi-clamping combined turning blade, through the cooperation of the slot, the boss and the side clamping groove, when the blade is placed in the adapting groove, the boss is seated in the groove, and a single clamping is performed, and the side clamping groove of the outer wall of the blade is attached to the side clamping platform, and a double clamping is performed to ensure the accuracy of the blade when working, the pressing sheet is buckled onto the boss on the top of the blade, and the blade is pressed, and the bolts are used to pass through the pressing blade and the cutter head in sequence for tightening, and the blade is fastened to the tool stand by triple clamping, so that the blade can be better fixed, thereby improving the processing accuracy.

[0004] However, in the above patent, although it has been tightened multiple times, the blade still has the possibility of causing damage to the base, so the processing accuracy is still poor after long-term use. Summary of the invention

[0005] The present application provides a tool holder and a tool, which improve the processing accuracy of the tool.

[0006] According to a first aspect of the present application, a knife seat is provided:

[0007] Optionally, the knife holder is fixedly connected to the blade, wherein the knife holder comprises:

[0008] A base body, the base body is a cube, a groove is formed at a vertex of the base body, the blade is placed in the groove, the groove comprises a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are both connected to the bottom wall, and the first side wall and the second side wall are respectively formed with a first positioning groove and a second positioning groove;

[0009] A positioning pin, the positioning pin is inserted into the first positioning groove and the second positioning groove respectively, so that the side surface of the positioning pin abuts against the blade, and a gap is formed between the blade and the first side wall and the second side wall;

[0010] A pressing block, wherein a first end of the pressing block is fixedly connected to the base body, and a second end of the pressing block is used for abutting against the blade.

[0011] Optionally, a through hole is formed at the first end of the pressing block, a connecting hole is formed at the base, and the fixing member passes through the through hole until the connecting hole is connected to the base, so that the second end of the pressing block abuts against the blade.

[0012] Optionally, the pressing block includes a mounting portion and a clamping portion, the clamping portion is connected to one end of the mounting portion, the clamping portion is cylindrical, and the clamping portion extends into the groove for abutting against the blade, the mounting portion is provided with a through hole, and the mounting portion is connected to the base.

[0013] Optionally, the clamping portion is smoothly arranged on a side away from the mounting portion.

[0014] Optionally, an abutment platform is provided at one end of the mounting portion away from the clamping portion, the abutment platform abuts against the base, and the distance between the abutment platform and the through hole is smaller than the distance between the abutment platform and the clamping portion.

[0015] Optionally, the first positioning groove and the second positioning groove are arranged vertically.

[0016] Optionally, the locating pin is a high speed steel locating pin.

[0017] According to a second aspect of the present application, an embodiment of the present application provides a tool, comprising:

[0018] A blade, the blade comprising a connecting portion and a plurality of cutting edges connected to the connecting portion, wherein the plurality of cutting edges are distributed in a circumferential array around the connecting portion;

[0019] In any one of the tool holders in the first aspect, the blade is installed in the groove, and the positioning pin and the pressure block are both in contact with the connecting portion.

[0020] Optionally, the connecting portion is provided with an abutment hole, and the pressing block is inserted into the abutment hole to abut against the connecting portion.

[0021] Optionally, the number of the cutting edges is two, the first side groove wall is provided with an accommodating groove, and a cutting edge is placed in the accommodating groove.

[0022] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0023] An embodiment of the present application provides a tool holder and a tool, the tool holder comprising: a base, a positioning pin and a pressure block, wherein the base is a cube, a groove is provided at a vertex of the base, the blade is placed in the groove, the groove comprises a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are both connected to the bottom wall, the first side wall and the second side wall are respectively provided with a first positioning groove and a second positioning groove; the positioning pins are respectively inserted into the first positioning groove and the second positioning groove so that the side of the positioning pin abuts against the blade, and a gap is formed between the blade and the first side wall and the second side wall; the first end of the pressure block is fixedly connected to the base, and the second end of the pressure block is used to abut against the blade. Based on this, the present application provides a first positioning groove and a second positioning groove on the first side wall and the second side wall respectively, inserts the positioning pin into the first positioning groove and the second positioning groove, so that the blade contacts the positioning pin instead of the first side wall or the second side wall, thereby forming a gap between the blade and the first side wall and the second side wall, reducing the area of ​​direct contact between the blade and the tool holder, reducing the friction and wear between the tool and the tool holder, thereby reducing the shaking amplitude of the blade during the processing, improving the processing accuracy, and also helping to extend the service life of the blade and the tool holder. At the same time, the positioning pin also allows the blade to be accurately positioned in the groove, improves the accuracy of the blade installation, and helps to maintain the stability of the blade during operation, and can also reduce the processing errors caused by shaking or misalignment.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0026] Figure 1 is a schematic structural diagram of a knife holder according to an exemplary embodiment;

[0027] Figure 2 is a schematic structural diagram of a blade according to an exemplary embodiment;

[0028] Figure 3 is a schematic structural diagram of a tool according to an exemplary embodiment.

[0029] Legend:

[0030] DETAILED DESCRIPTION

[0031] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature "on" or "under" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0034] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from the description; obviously, the embodiments in the specification are only some embodiments of the present disclosure, not all embodiments.

[0035] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] Based on this, the present application provides a knife holder and a knife. The knife holder provided in the embodiment of the present application is first introduced below.

[0037] Figure 1 A schematic structural diagram of a knife holder provided in one embodiment of the present application is shown.

[0038] Embodiment 1:

[0039] like Figure 1 As shown, the blade holder 100 and the blade 200 are fixedly connected, wherein the blade holder 100 may include the following structures:

[0040] The base body 110 is a cube, and a groove 111 is formed at a vertex of the base body 110. The blade 200 is placed in the groove 111. The groove 111 includes a bottom wall 112, a first side wall 113, and a second side wall 114. The first side wall 113 and the second side wall 114 are both connected to the bottom wall 112. The first side wall 113 and the second side wall 114 are respectively formed with a first positioning groove 115 and a second positioning groove 116;

[0041] A positioning pin 120, the positioning pin 120 is inserted into the first positioning groove 115 and the second positioning groove 116 respectively, so that the side surface of the positioning pin 120 abuts against the blade 200, and a gap is formed between the blade 200 and the first side wall 113 and the second side wall 114;

[0042] The pressing block 130 has a first end fixedly connected to the base 110 , and a second end of the pressing block 130 is used to abut against the blade 200 .

[0043] A groove 111 is formed at the first vertex of the base 110, wherein the groove 111 includes a bottom wall 112 and a first side wall 113 and a second side wall 114 arranged around the bottom wall 112, and a first positioning groove 115 and a second positioning groove 116 are formed on the first side wall 113 and the second side wall 114 respectively, so that the positioning pin 120 can be inserted into the first positioning groove 115 and the second positioning groove 116, and the first end of the pressing block 130 is connected to the base 110. When the blade 200 is placed in the groove 111, the second end of the pressing block 130 abuts against the blade 200, so that the blade 200 can be pressed tightly. The sheet 200 fits with the bottom wall 112 of the groove 111. At the same time, the blade 200 placed in the groove 111 does not fit with the first side wall 113 and the second side wall 114 of the groove 111, but fits with the positioning pins 120 placed in the first positioning groove 115 and the second positioning groove 116. Under the action of the positioning pins 120, a gap is formed between the blade 200 and the first side wall 113 and the second side wall 114. Under the joint action of the positioning pins 120 of the first side wall 113, the positioning pins 120 of the second side wall 114, the pressing block 130 and the bottom wall 112, the knife block placed in the groove 111 is fixed. Thus, the contact area between the tool 10 and the base is reduced, and the possibility of the base being scratched by the tool 10 is reduced, thereby reducing the occurrence of the blade 200 shaking in the groove 111 during the machining process, so that the blade 200 can be more stably fixed in the groove 111, improving the stability of the installation of the blade 200 and improving the processing accuracy, which also helps to extend the service life of the blade 200 and the tool holder 100. At the same time, the positioning pin 120 also allows the blade 200 to be accurately positioned in the groove 111, improving the accuracy of the installation of the blade 200, and also helping to maintain the stability of the blade 200 during operation, and can also reduce processing errors caused by shaking or misalignment.

[0044] In one example, a through hole is formed at the first end of the pressing block 130 , a connecting hole is formed at the base 110 , and the fixing member passes through the through hole until the connecting hole is connected to the base 110 , so that the second end of the pressing block 130 abuts against the blade 200 .

[0045] By setting a through hole on the pressing block 130, opening a connecting hole on the base 110, and using a fixing piece to pass through the through hole until the connecting hole, the fixing piece is connected to the base 110, so that the first end of the pressing block 130 can be fixed on the base 110, thereby allowing the second end of the pressing block 130 to abut against the blade 200 in the groove 111.

[0046] Optionally, the fixing member may be a bolt, and the connecting hole may be a threaded hole. By adjusting the depth of the bolt entering the connecting hole, the degree of pressure exerted by the pressure block 130 on the blade 200 can be adjusted, thereby adjusting the stability of the installation of the blade 200. In addition, the bolt connection also facilitates the separation of the pressure block 130 and the base 110, thereby facilitating the removal of the blade 200.

[0047] In one example, the pressing block 130 includes a mounting portion 131 and a clamping portion 132, wherein the clamping portion 132 is connected to one end of the mounting portion 131, the clamping portion 132 is cylindrical, and the clamping portion 132 extends into the groove 111 for abutting against the blade 200, the mounting portion 131 is provided with a through hole, and the mounting portion 131 is connected to the base 110. By setting the clamping portion 132 to be cylindrical, the clamping portion 132 can be extended into the groove 111, reducing the distance between the clamping portion 132 and the blade 200, thereby facilitating abutment with the blade 200 in the groove 111, and improving the stability of the abutment between the clamping portion 132 and the blade 200.

[0048] In one example, the abutment portion is smoothly arranged on one side away from the mounting portion 131, thereby reducing the possibility of scratches on the blade 200 caused by the abutment portion during the abutment process with the blade 200, thereby increasing the service life of the blade 200 and reducing the cost of use.

[0049] In one example, an abutment platform 133 is disposed at one end of the mounting portion 131 away from the clamping portion 132 . The abutment platform 133 abuts against the base 110 , and a distance between the abutment platform 133 and the through hole is smaller than a distance between the abutment platform 133 and the clamping portion 132 . By setting an abutment platform 133 at one end of the mounting portion 131 away from the clamping portion 132, the abutment platform 133 and the base 110 abut to form a fulcrum. When the fixing member passes through the through hole and is connected to the base 110 so that the first end of the pressing block 130 can be fixed on the base 110, the fixing member will give the pressing block 130 a first force. The length of the force arm of the first force is the distance between the through hole (fixing member) and the abutment platform 133, and the length of the force arm of the second force acting on the blade 200 by the pressing block 130 is the distance between the abutment portion and the abutment platform 133. The length of the force arm of the second force is greater than the length of the force arm of the first force, and the ratio of the force arm of the first force to the displacement is equal to the ratio of the force arm of the second force to the displacement. Therefore, a small displacement of the fixing member will be amplified at the abutment portion to become a large displacement.

[0050] Embodiment 2:

[0051] like Figure 1As shown, in one example, the first positioning groove 115 and the second positioning groove 116 are vertically arranged. By vertically arranging the first positioning groove 115 and the second positioning groove 116, the positioning pins 120 respectively arranged therein are also vertically arranged. In the two-dimensional space, the blade 200 has its own movement trajectory on the spatial coordinate axes X, Y, and Z. By arranging the two positioning pins 120 vertically, the free movement of the blade 200 in two vertical directions (such as the X-axis and the Y-axis, or understood as the horizontal direction and the vertical direction) can be in contact with the positioning pins 120, but not in contact with the first side wall 113 or the second side wall 114, thereby reducing the possibility of the blade 200 causing wear to the first side wall 113 or the second side wall 114, and effectively protecting the first side wall 113 and the second side wall 114.

[0052] More specifically, the first positioning groove 115 extends in the horizontal direction, and the second positioning groove 116 extends in the vertical direction.

[0053] In one example, the positioning pin 120 is a high-speed steel positioning pin 120. High-speed steel is an alloy steel with high hardness, high wear resistance and high thermal strength. Therefore, the high-speed steel positioning pin 120 has excellent wear resistance and hardness. This makes it difficult for the positioning pin 120 to wear or deform during long-term contact with the blade 200, and the blade 200 is placed in the groove 111 stably.

[0054] In the above-mentioned embodiment 2, each structure in the above-mentioned embodiment 1 is included, and each process in the above-mentioned embodiment 1 can be implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0055] The tool 10 provided in the embodiment of the present application is introduced below.

[0056] Figure 2 A schematic diagram of the structure of a blade provided by an embodiment of the present application is shown. Figure 3 A schematic structural diagram of a tool provided by an embodiment of the present application is shown.

[0057] Embodiment 3:

[0058] like Figure 2-Figure 3 As shown, in one example, the tool 10 includes: a blade 200, the blade 200 includes a connecting portion 210 and a plurality of cutting edges 220 connected to the connecting portion 210, and the plurality of cutting edges 220 are distributed in a circumferential array around the connecting portion 210;

[0059] According to the blade holder 100 of claim 1 , the blade 200 is installed in the groove 111 , and the positioning pin 120 and the pressing block 130 are both in contact with the connecting portion 210 .

[0060] The blade 200 is provided with a plurality of cutting edges 220, each of which can cut a workpiece, and the plurality of cutting edges 220 are distributed in a circular array around the connecting portion 210, so that when one of the cutting edges 220 is severely worn and the processing precision is not high, the connecting portion 210 can be rotated to replace another cutting edge 220 to process the workpiece, thereby extending the overall service life of the tool 10. Since there are a plurality of cutting edges 220 to choose from, the number of times the blade 200 needs to be frequently replaced due to the wear of the cutting edge 220 is reduced, thereby improving the cutting efficiency. In addition, since each cutting edge 220 is evenly distributed around the connecting portion 210, when different cutting edges 220 are used for cutting, relatively consistent cutting precision can be maintained, which is conducive to processing high-quality workpieces.

[0061] In one example, the connection portion 210 is provided with an abutment hole 211, and the pressing block 130 is inserted into the abutment hole 211 to abut against the connection portion 210. By providing the abutment hole 211 in the connection portion 210, the cylindrical abutment portion of the pressing block 130 can be inserted into the abutment hole 211, and the abutment between the pressing block 130 and the blade 200 is further transformed into a plug-in relationship, thereby improving the connection stability between the pressing block 130 and the blade 200.

[0062] In one example, there are two cutting edges 220, and a receiving groove 117 is provided on the first side groove wall, and one cutting edge 220 is placed in the receiving groove 117. There are two cutting edges 220, and in the process of using the blade 200 to process the workpiece, only one of the cutting edges 220 is used. In order to protect the other unused cutting edge 220, another receiving groove 117 can be provided on the first side groove wall. When the blade 200 is placed in the groove 111, the other cutting edge 220 is placed in the receiving groove 117 to protect the other unused cutting edge 220, thereby reducing the possibility of damage to the cutting edge 220 and ensuring the processing accuracy of the cutting edge 220.

[0063] Specifically, the shape of the receiving groove 117 and the shape of the cutting edge 220 are adapted to each other.

[0064] In the above-mentioned embodiment 3, each structure in the above-mentioned embodiment 1 and / or 2 is included, and each process in the above-mentioned embodiment 1 / or 2 can be implemented, and the same technical effect can be achieved. In order to avoid repetition, it will not be repeated here.

[0065] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A knife holder, characterized in that: The knife seat is fixedly connected to the blade, and the knife seat comprises: A base body, the base body is a cube, a groove is formed at a vertex of the base body, the blade is placed in the groove, the groove comprises a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are both connected to the bottom wall, and the first side wall and the second side wall are respectively formed with a first positioning groove and a second positioning groove; A positioning pin, the positioning pin being inserted into the first positioning slot and the second positioning slot respectively, so that a side surface of the positioning pin abuts against the blade, and a gap is formed between the blade and the first side wall and the second side wall; A pressing block, wherein a first end of the pressing block is connected to the base body, and a second end of the pressing block is used to abut against the blade.

2. The knife holder according to claim 1, characterized in that: A through hole is formed at the first end of the pressing block, a connecting hole is formed at the base, and a fixing member passes through the through hole until the connecting hole is connected to the base, so that the second end of the pressing block abuts against the blade.

3. The knife holder according to claim 2, characterized in that: The pressing block includes a mounting portion and a clamping portion, wherein the clamping portion is connected to one end of the mounting portion, the clamping portion is cylindrical, and the clamping portion extends into the groove for abutting against the blade, the mounting portion is provided with a through hole, and the mounting portion is connected to the base.

4. The knife holder according to claim 3, characterized in that: The clamping portion is smoothly arranged away from one side of the mounting portion.

5. The knife holder according to claim 3, characterized in that: An abutment platform is provided at one end of the mounting portion away from the clamping portion, the abutment platform abuts against the base, and a distance between the abutment platform and the through hole is smaller than a distance between the abutment platform and the clamping portion.

6. The knife holder according to any one of claims 1 to 5, characterized in that: The first positioning groove and the second positioning groove are vertically arranged.

7. The knife holder according to any one of claims 1 to 5, characterized in that: The positioning pin is a high-speed steel positioning pin.

8. A cutting tool, characterized in that: The tool comprises: a blade, the blade comprising a connecting portion and a plurality of cutting edges connected to the connecting portion, the plurality of cutting edges being distributed in a circumferential array around the connecting portion; According to the blade holder as described in any one of claims 1 to 7, the blade is installed in the groove, and the positioning pin and the pressure block are both in abutment with the connecting portion.

9. The tool according to claim 8, characterized in that The connecting portion is provided with an abutting hole, and the pressing block is inserted into the abutting hole to abut against the connecting portion.

10. The tool according to claim 8, characterized in that The number of the cutting edges is two, and the first side groove wall is provided with an accommodating groove, in which one of the cutting edges is placed.

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