Stable installation of non-standard slot cutter

Abstract

The utility model discloses non - standard groove cutter of stable installation, including the cutter bar and tool of interconnection, the front end of cutter bar is provided with tool mounting part, and the one side of tool mounting part is provided with the cutter groove for installing tool, the tool includes the center disc of integrated mould and the three groups of cutting edges of the circular array setting center disc brim, the cutter bar and tool pass through the countersunk screw fixed connection between, simultaneously, the cutter groove is provided with the limit countersunk hole, the hole of this limit countersunk hole is the threaded hole, and the countersunk of limit countersunk hole simultaneously is the cross section of triangle, simultaneously, the one side of center disc of tool extends outward and is provided with the limit post, and the cross section of this limit post is also triangle, and the limit post is inserted in the countersunk of limit countersunk hole, the utility model discloses through double -insurance mechanism can resist the torsional moment of cutting significantly, prevents the tool from rotating or loosening in the machining process, ensures the machining accuracy and operating safety.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, specifically a non-standard grooving tool with stable installation. Background Technology

[0002] In machining, it is common to encounter situations where the size and shape of the groove do not match standard grooving inserts, such as incorrect groove width or non-standard transition radii at the bottom of the groove. Using non-standard grooving inserts can precisely match these special requirements, ensuring machining accuracy and efficiency.

[0003] For example, our company's earlier patent application, authorized by publication number CN223011926U, discloses a non-standard grooving tool, including a tool shank with a groove; it also includes: a blade fitted inside the groove, the blade being L-shaped, and the outer end of the blade forming a locking mechanism with the groove; a locking pin penetrating through the middle of the blade, the top of the locking pin extending into the tool shank and into a positioning groove to form a locking mechanism, the positioning groove being located inside the tool shank; a pin slidably connected inside the pin, a slider fixed to the bottom of the pin, the outer end of the slider extending into a groove to form a locking mechanism, and the groove being located inside the pin; a protrusion slidably connected inside the slider, the outer end of the protrusion extending into a groove to form a locking mechanism.

[0004] The non-standard grooving cutter of the above patent is equipped with a blade. The blade is arranged in an "L" shape, which allows the blade to process special workpieces, thereby improving the convenience of processing. However, the disadvantage of the above patent is that in actual use, since the size of the grooving cutter is generally not very large, the size of the retaining pin is very small. This makes it difficult to process the space inside the retaining pin to install parts such as springs and pins, and the processing technology is complicated.

[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a non-standard grooving tool that can be installed stably, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A stable non-standard grooving tool includes a tool shank and a cutting tool connected to each other. The tool shank has a cutting tool mounting section at its front end, with a groove for mounting the cutting tool on one side. The cutting tool includes an integrally formed central disc and three sets of cutting edges arranged in a circular array along the edge of the central disc. The tool shank and the cutting tool are fixedly connected by countersunk screws. A limiting countersunk hole is provided in the groove; this limiting countersunk hole is a threaded hole with a triangular cross-section. A limiting post extends outward from one side of the central disc of the cutting tool; this limiting post also has a triangular cross-section and is inserted into the countersunk hole of the limiting countersunk hole, further preventing rotation of the cutting tool and guide rod. A fixing countersunk hole is provided on the other side of the central disc of the cutting tool; a countersunk screw passes through the fixing countersunk hole and is threadedly connected to the limiting countersunk hole.

[0009] Furthermore, the horizontal cross-section of the cutting edge is L-shaped.

[0010] Furthermore, the portion of the cutting edge adjacent to the blade is a first abutment portion; the edge of the blade groove is provided with a second abutment portion corresponding to the first abutment portion; when the blade is installed on the blade groove, the first abutment portion and the second abutment portion abut against each other.

[0011] Furthermore, the groove has a clearance portion corresponding to a set of cutting edges on the tool; during installation, the set of cutting edges on the tool is located within the clearance portion.

[0012] Furthermore, a gap is left between the inner wall of the relief portion and the cutting edge.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The first abutment part on the cutting tool and the second abutment part on the tool holder groove abut against each other, and together with the triangular cross-section limiting post and the corresponding limiting countersunk hole, an effective mechanical interlock is formed. This double insurance mechanism can significantly resist the torsional torque during cutting, prevent the tool from rotating or loosening during machining, and ensure machining accuracy and operational safety.

[0015] Using countersunk screws as the primary connection and fixing method, the structure is simple and easy to operate. When it is necessary to change the tool, simply use an Allen wrench to easily loosen the screws for replacement, greatly simplifying the maintenance process, improving work efficiency, and making it suitable for machining scenarios that require frequent tool changes;

[0016] The specially designed clearance on the tool groove provides a buffer gap for the cutting edge. This design can effectively prevent the cutting edge from directly hitting the inner wall of the tool groove due to vibration during grooving operations. It not only protects the cutting edge and reduces potential damage and chipping risk, but also helps to reduce machining noise and vibration and improve the smoothness of the cutting process. Attached Figure Description

[0017] Figure 1 A schematic diagram of a non-standard grooving tool for stable installation.

[0018] Figure 2 A front view of a non-standard grooving tool for stable installation.

[0019] Figure 3 Side view for installing a stable non-standard grooving tool.

[0020] Figure 4 Top view of a non-standard grooving tool for stable installation.

[0021] Figure 5 for Figure 2 Sectional view along the AA direction.

[0022] Figure 6 A schematic diagram of the tool mounting section in a non-standard grooving tool for stable installation.

[0023] Figure 7 Exploded view of a non-standard grooving tool for stable installation.

[0024] Figure 8 A schematic diagram of the tool structure for installing a stable non-standard grooving tool. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Please see Figure 1-8 A non-standard grooving tool with stable installation includes a tool bar 1 and a tool 3 connected to each other. The front end of the tool bar 1 is provided with a tool mounting part 101, and a tool groove 102 for mounting the tool 3 is opened on one side of the tool mounting part 101.

[0027] The cutting tool 3 includes an integrally formed central disk 301 and three sets of cutting edges 302 arranged in a circular array along the edge of the central disk 301; meanwhile, the horizontal cross-section of the cutting edges 302 is L-shaped.

[0028] In this design, the portion of the cutting tool 3 adjacent to the cutting edge 302 is the first abutment portion 303;

[0029] The edge of the cutter groove 102 is provided with a second abutment 103 corresponding to the first abutment 303; when the cutter 3 is installed on the cutter groove 102, the first abutment 303 and the second abutment 103 abut against each other; thereby preventing the cutter 3 and the guide rod from rotating.

[0030] Meanwhile, in this solution, a clearance portion 104 is provided on the groove 102 corresponding to a set of cutting edges 302 on the tool 3; during installation, a set of cutting edges 302 on the tool 3 is located in the clearance portion 104, and a gap is left between the inner wall of the clearance portion 104 and the cutting edges 302 to prevent the cutting edges 302 from hitting the inner wall of the groove 102 due to the vibration of the grooving tool during the grooving operation.

[0031] Similarly, in use, the tool holder 1 is fixed on the CNC machine tool, and then the workpiece rotates to cut with the tool 3, so that the tool 3 can process the workpiece and groove it.

[0032] Since the locking pin structure in the background technology is too complex, in this solution, the tool bar 1 and the tool 3 are fixedly connected by countersunk screws 2; at the same time, a limiting countersunk hole 105 is provided on the tool groove 102, the hole of the limiting countersunk hole 105 is a threaded hole, and the cross section of the countersunk head of the limiting countersunk hole 105 is triangular.

[0033] Meanwhile, a limiting post 304 is provided on one side of the central disk 301 of the tool 3, extending outward. The cross section of the limiting post 304 is also triangular, and the limiting post 304 is inserted into the countersunk head of the limiting countersunk head hole 105, thereby further preventing the tool 3 and the guide rod from rotating.

[0034] A countersunk hole 305 is provided on the other side of the central disc 301 of the cutting tool 3; the countersunk screw 2 passes through the countersunk hole 305 and is threaded into the hole 402 of the limiting countersunk hole 105.

[0035] When this utility model is working, the tool holder 1 is fixed on the machine tool, and then the workpiece will be rotated to cut with the tool 3. The tool 3 can make grooves in the workpiece. The tool 3 is limited by two sets of structures: the limiting post 304 and the limiting countersunk hole 105, the first abutment part 303 and the second abutment part 103. It is fixed by screws to ensure the stability of the tool 3.

[0036] When the tool needs to be replaced, simply loosen the countersunk screw 2 with an Allen wrench to perform the replacement.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A non-standard grooving tool with stable installation, comprising an interconnected tool holder and a cutting tool, characterized in that, The front end of the tool holder is provided with a tool mounting part, and a tool groove for mounting the tool is opened on one side of the tool mounting part; the tool includes an integrally formed central disk and three sets of cutting edges arranged in a circular array with the edge of the central disk; the tool holder and the tool are fixedly connected by countersunk screws; at the same time, a limiting countersunk hole is opened on the tool groove, the hole of the limiting countersunk hole is a threaded hole, and the cross-section of the countersunk of the limiting countersunk hole is triangular; at the same time, a limiting post is provided on one side of the central disk of the tool, which is also triangular in cross-section, and the limiting post is inserted into the countersunk of the limiting countersunk hole; a fixing countersunk hole is opened on the other side of the central disk of the tool; the countersunk screw passes through the fixing countersunk hole and is threadedly connected to the hole of the limiting countersunk hole.

2. The non-standard grooving tool with stable installation according to claim 1, characterized in that, The horizontal cross-section of the cutting edge is L-shaped.

3. The non-standard grooving tool with stable installation according to claim 1, characterized in that, The portion of the cutting edge adjacent to the blade is the first abutment portion; the edge of the blade groove is provided with a second abutment portion corresponding to the first abutment portion; when the blade is installed on the blade groove, the first abutment portion and the second abutment portion abut against each other.

4. The non-standard grooving tool with stable installation according to claim 1, characterized in that, The groove has a clearance portion corresponding to a set of cutting edges on the tool; during installation, the set of cutting edges on the tool is located within the clearance portion.

5. The non-standard grooving tool with stable installation according to claim 4, characterized in that, A gap is left between the inner wall of the relief part and the cutting edge.

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