An indexable double-sided groove cutting insert

Abstract

The utility model discloses an indexable double-sided groove cutting blade, comprising an upper blade, an upper cutting edge is provided on the top of the upper blade, a cutting groove is arranged on the top of the upper blade, a platform is provided in the middle of the upper surface of the upper blade, and an upper corner blade is provided at the bottom of the upper blade. When the upper blade and the lower blade are damaged, the upper blade can be rotated at a forty-five degree angle to expose the upper corner blade at the bottom end of the upper blade, and the lower corner blade at the top end of the lower blade is also exposed, and then the combination of the upper blade and the lower blade is installed on the tool body. Since the upper corner blade and the lower corner blade have the same structure, the workpiece can be rough-processed for many times. The workpiece rough-processed by the upper corner blade and the lower corner blade can be processed with a new blade, which can effectively reduce the wear degree of the new blade, and can make full use of the old blade, avoid wasting material resources, reduce financial consumption, and realize the flexibility and reliability of the blade.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to an indexable double-sided groove cutting blade. Background Art

[0002] Indexable double-sided grooved cutting inserts are commonly used cutting inserts. As users have higher requirements for the surface quality of workpieces, the accuracy and life requirements of indexable cutting inserts are getting higher and higher. In order to be sharp enough, the cutting part of existing tools is often relatively weak, which makes the risk of damage to the tool head and the overall scrapping of the tool higher. Therefore, drilling tools are usually designed to consist of a cutting part and a clamping tool body. The cutting part consists of a blade. During cutting, the chips and the surface of the tool body produce severe friction, thereby reducing the overall service life of the tool. It is often necessary to replace the blade many times. The replaced blade only has the damaged cutting surface. It is for this reason that a new blade needs to be replaced. The old blade is directly discarded, which is a waste of resources and financial resources. For this reason, an indexable double-sided grooved cutting insert is proposed. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted in this utility model is:

[0005] A reversible double-sided grooved cutting blade comprises an upper blade, an upper cutting edge is provided on the top of the upper blade, a cutting groove is arranged on the top of the upper blade, a platform is provided in the middle of the upper surface of the upper blade, an upper corner edge is provided on the bottom of the upper blade, a first inner platform is provided in the middle of the lower surface of the upper blade, a first inner cutting groove is provided on the bottom of the upper blade, an upper mounting hole is provided in the middle of the upper blade, a center sleeve is sleeved inside the upper mounting hole, a lower blade is attached to the bottom end of the upper blade, a lower corner edge is provided on the top of the lower blade, a second inner cutting groove is provided on the top of the lower blade, and a second inner platform is provided on the top of the lower blade.

[0006] Preferably, a circular arc convex surface is provided at the connection between the cutting groove and the platform, and the bottom of the lower blade is also provided with a cutting groove, a platform and a circular arc convex surface.

[0007] Preferably, the first inner platform and the second inner platform have the same structure, and the first inner platform and the second inner platform are in contact with each other.

[0008] Preferably, a lower cutting edge is provided at the bottom of the lower blade, and the lower cutting edge has the same structure as the upper cutting edge.

[0009] Preferably, the middle of the lower blade is fixedly mounted to the central sleeve, and a lower mounting hole is opened in the middle of the lower blade.

[0010] Preferably, the number of the upper cutting edges is four, the number of the upper corner edges is four, and the number of the lower corner edges matches the number of the upper corner edges.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] In the utility model, when the upper blade and the lower blade are damaged, the upper blade can be rotated at an angle of forty-five degrees to expose the upper corner edge at the bottom end of the upper blade, and the lower corner edge at the top end of the lower blade is also exposed, and then the combination of the upper blade and the lower blade is installed on the tool body. Since the upper corner edge and the lower corner edge have the same structure, the workpiece can be rough-processed for multiple times. The workpiece rough-processed by the upper corner edge and the lower corner edge can be processed with a new blade, which can effectively reduce the wear degree of the new blade, and can make full use of the old blade, avoid wasting material resources, reduce financial consumption, and realize the flexibility and reliability of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0014] Figure 2 A schematic cross-sectional view of an upper blade according to an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of an upper mounting hole in one embodiment of the utility model;

[0016] Figure 4 A schematic diagram of a lower corner blade of an embodiment of the utility model;

[0017] Figure 5 A schematic diagram of a second cutting groove according to an embodiment of the utility model

[0018] Reference numerals:

[0019] 1. Upper blade; 2. Upper cutting edge; 3. Cutting groove; 4. Platform; 5. Arc convex surface; 6. Upper corner blade; 7. First inner platform; 8. First inner cutting groove; 9. Upper mounting hole; 10. Center sleeve; 11. Lower blade; 12. Lower corner blade; 13. Second inner cutting groove; 14. Second inner platform; 15. Lower cutting edge; 16. Lower mounting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0021] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0022] Example:

[0023] Combination Figure 1-5 As shown, the utility model provides an indexable double-sided groove cutting blade, including an upper blade 1, the top of the upper blade 1 is provided with an upper cutting edge 2, the upper cutting edge 2 is a long strip-shaped blade, which has been sharpened and is used for cutting and milling a workpiece, and finishing. The four sides of the top of the upper blade 1 are all upper cutting edges 2. A plurality of upper cutting edges 2 are provided to fully utilize the blade and reduce consumption. A cutting groove 3 is provided on the top of the upper blade 1. When the workpiece is cut by the upper cutting edge 2, chips will be generated, and the cutting groove 3 has a certain width for quickly discharging the chips to avoid irreversible damage to the blade caused by long-term use. A platform 4 is provided in the middle of the upper surface of the upper blade 1, and an upper Corner blade 6, upper corner blade 6 can also cut and mill the workpiece. The functions of upper corner blade 6 and upper cutting blade 2 are the same, but the cutting and milling effects are different. Optional styles can be further added to meet different needs. A first inner platform 7 is provided in the middle of the lower surface of the upper blade 1, and a first inner cutting groove 8 is provided at the bottom of the upper blade 1. The first inner platform 7 and the first inner cutting groove 8 are provided to quickly discharge the chips generated by the cutting of the upper corner blade 6. An upper mounting hole 9 is provided in the middle of the upper blade 1. The blade needs to be fixed on the tool body. Generally, screws are used to pass through the upper mounting hole 9 to fix the blade on the tool body for processing. The inner part of the upper mounting hole 9 is sleeved with a center sleeve 10.

[0024] Among them, the bottom end of the upper blade 1 is attached to the lower blade 11, and the connection between the cutting groove 3 and the platform 4 is provided with an arc convex surface 5. The bottom of the lower blade 11 is also provided with a cutting groove 3, a platform 4, and an arc convex surface 5. Because the blade is indexable, it is provided to increase the utilization rate. Compared with the traditional single blade, the indexable cutting blade can reduce the consumption cost, and is therefore widely used. The top of the lower blade 11 is provided with a lower corner edge 12. The number of the upper cutting edges 2 is four, and the number of the upper corner edges 6 is four. The number of the lower corner edges 12 matches the upper corner edges 6, and the functions of the lower corner edges 12 and the upper corner edges 6 are the same. When the upper corner edge 6 at the top is consumed and worn to the point of being unusable, the lower corner edge 12 can be used by flipping the blade assembly, thereby successfully increasing the utilization rate of the blade. The top of the lower blade 11 is provided with A second inner cutting groove 13 is provided, and the first inner cutting groove 8 has the same function as the second inner cutting groove 13, and is used for chip removal. A second inner platform 14 is provided on the top of the lower blade 11, and the first inner platform 7 has the same structure as the second inner platform 14, and the first inner platform 7 and the second inner platform 14 are fitted together, and the connection between the second inner platform 14 and the lower blade 11 is set in an arc shape, which can smoothly discharge the chips, and has a function similar to the arc convex surface 5, which prevents the chips from breaking and breaking and affecting the processing. A lower cutting edge 15 is provided at the bottom of the lower blade 11, and the lower cutting edge 15 has the same structure as the upper cutting edge 2, and is used for cutting and milling. The middle of the lower blade 11 is fixedly installed with the center sleeve 10, and a lower mounting hole 16 is provided in the middle of the lower blade 11. When installing, you only need to put the screw into the center sleeve 10, and install the upper cutter body for use.

[0025] The working principle and use process of the utility model are as follows: first, when the upper cutting edge 2 and the lower cutting edge 15 of the blade group cannot be used for cutting and milling, the blade group is removed from the tool body, and the upper blade 1 is rotated forty-five degrees. At this time, the upper corner edge 6 at the bottom of the upper blade 1 is rotated and protruded, and the lower corner edge 12 at the top of the lower blade 11 is also exposed. At this time, the blade group is installed on the tool body again, and the lower corner edge 12 or the upper corner edge 6 faces the workpiece for rough cutting and milling. The chips generated after cutting and milling will be discharged under the action of the second inner cutting groove 13 and the second inner platform 14.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An indexable double-sided grooved cutting insert, comprising an upper insert (1), characterized in that: The top of the upper blade (1) is provided with an upper cutting edge (2), the top of the upper blade (1) is provided with a cutting groove (3), the middle of the upper surface of the upper blade (1) is provided with a platform (4), the bottom of the upper blade (1) is provided with an upper corner blade (6), the middle of the lower surface of the upper blade (1) is provided with a first inner platform (7), the bottom of the upper blade (1) is provided with a first inner cutting groove (8), the middle of the upper blade (1) is provided with an upper mounting hole (9), the interior of the upper mounting hole (9) is sleeved with a center sleeve (10), the bottom end of the upper blade (1) is fitted with a lower blade (11), the top of the lower blade (11) is provided with a lower corner blade (12), the top of the lower blade (11) is provided with a second inner cutting groove (13), and the top of the lower blade (11) is provided with a second inner platform (14).

2. The indexable double-sided grooved cutting insert according to claim 1, characterized in that: A circular arc convex surface (5) is provided at the connection between the cutting groove (3) and the platform (4), and a cutting groove (3), a platform (4) and a circular arc convex surface (5) are also provided at the bottom of the lower blade (11).

3. The indexable double-sided grooved cutting insert according to claim 1, characterized in that: The first inner platform (7) and the second inner platform (14) have the same structure, and the first inner platform (7) and the second inner platform (14) are in contact with each other.

4. The indexable double-sided grooved cutting insert according to claim 1, characterized in that: A lower cutting edge (15) is provided at the bottom of the lower blade (11), and the lower cutting edge (15) has the same structure as the upper cutting edge (2).

5. The indexable double-sided grooved cutting insert according to claim 1, characterized in that: The middle of the lower blade (11) is fixedly mounted to the central sleeve (10), and a lower mounting hole (16) is provided in the middle of the lower blade (11).

6. The indexable double-sided grooved cutting insert according to claim 1, characterized in that: The number of the upper cutting edges (2) is four, the number of the upper corner edges (6) is four, and the number of the lower corner edges (12) matches the number of the upper corner edges (6).

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