Replaceable polyhedral cutting edge PCBN blade

Abstract

The utility model relates to the field of PCBN blades, in particular to a replaceable polyhedral cutting edge PCBN blade which comprises a blade body. The mounting hole is formed in the blade main body and is used for mounting the blade main body; and a mounting groove. According to the replaceable PCBN blade with the multi-face cutting edges, due to the arrangement of the blade body, the mounting groove, the sliding grooves, the limiting grooves, the mounting plate, the hexagon bolts, the mounting block, the first tool bit, the second tool bit and the third tool bit, the cutting edges in the PCBN blade can be replaced, and the whole PCBN blade does not need to be replaced when the cutting edges are damaged; a mounting block on one side of a first tool bit is arranged in a mounting groove in a blade body, sliding blocks on the upper side and the lower side of the mounting block are limited in sliding grooves in the mounting groove, and therefore the stability when the mounting block and the first tool bit are replaced is enhanced, and then a mounting plate is placed in a limiting groove in the blade body; and the hexagonal bolts penetrate through the mounting blocks to fixedly connect the mounting blocks, so that a plurality of tool bits can be replaced, and the firmness during replacement is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of PCBN blades, in particular to a replaceable multi-edge PCBN blade. Background Technique

[0002] The PCBN blade is made of polycrystalline cubic boron nitride material and is mainly used for the cutting of ferrous metals, especially suitable for the cutting of difficult-to-machine materials such as hardened steel. In the automotive manufacturing industry, automated production lines, etc., the usage of PCBN blades occupies a very high proportion.

[0003] After retrieval, a utility model PCBN blade for hardened steel with the publication number CN207222970U includes a blade body, a chip breaker groove, a fixing groove, a reinforcing gasket, a cutting edge and a fixing hole. The chip breaker groove is located at the upper surface edge of the blade body and is parallel to the cutting edge; the chip breaker groove includes a rough machining chip breaker groove and a finish machining chip breaker groove; the fixing groove is located at the center of the blade body; the reinforcing gasket is located at the center of the blade body; the cutting edge is located at the edge of the blade body; the fixing hole is located at the center of the blade body. The settings of the chip breaker groove, fixing groove and reinforcing gasket in the present utility model have a simple structure, which is beneficial to prevent the blade from flying out and deflecting during cutting vibration, improving the safety during production and the surface machining quality of the workpiece, and facilitating market promotion and application.

[0004] The existing multi-edge PCBN blades usually have an integrated structure of the blade tip and the blade, and are all connected by welding. However, the service life of the blade tip of the PCBN blade is relatively low, and there is a risk of chipping. When the blade tip is damaged, the entire blade needs to be replaced, thereby increasing the usage cost. In the above comparative case, the PCBN blade also has an integrated structure of the blade tip and the blade. Therefore, when the blade tip is damaged, the blade tip cannot be directly replaced, and only the entire blade can be replaced, which is too wasteful of cost.

[0005] Therefore, it is very necessary to invent a replaceable multi-edge PCBN blade to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a replaceable multi-edge PCBN blade. The installation block on one side of the first blade tip is inserted into the installation groove in the blade body, and the sliders on the upper and lower sides of the installation block are limited in the sliding grooves in the installation groove, thereby strengthening the stability of the installation block and the first blade tip during replacement. Then, the installation plate is placed in the limiting groove on the blade body, and the hexagonal bolt passes through the installation block to fixedly connect it. Such a setting can not only replace multiple blade tips, but also strengthen the firmness during replacement, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A replaceable multi-edge PCBN blade, including a blade body;

[0008] Mounting holes are opened inside the blade body for mounting the blade body;

[0009] Mounting grooves are opened inside the periphery of the blade body for replacing the tool tips. Sliding grooves are opened on the upper and lower surfaces inside the mounting grooves. Limiting grooves are opened on the peripheral surface above the blade body. A mounting plate is installed inside the limiting grooves. A hexagonal bolt passes through the upper part of the mounting plate. A mounting block is movably connected inside the mounting groove. One end of the mounting block is fixedly installed with a first tool tip, a second tool tip and a third tool tip.

[0010] Preferably, a wear-resistant ring is arranged inside the mounting hole, and wear-resistant lines are arranged on the inner surface of the wear-resistant ring.

[0011] Preferably, the sliding grooves opened inside the mounting grooves are slidably connected with the sliding blocks fixedly installed on the upper and lower sides of the mounting block. The mounting block is trapezoid-shaped and has the same size as the mounting groove inside the blade body.

[0012] Preferably, limiting rods are fixedly installed on both sides below the mounting plate, and limiting holes are opened on both sides of the upper surface of the mounting block. The limiting rods pass through the blade body and the mounting block.

[0013] Preferably, a threaded groove is opened on the upper surface of the mounting block, and the hexagonal bolt passes through the mounting plate, the blade body and the mounting block.

[0014] Preferably, three groups of mounting grooves are opened on the periphery of the blade body, and the three groups of mounting grooves match the mounting blocks, the first tool tip, the second tool tip and the third tool tip.

[0015] In the above technical solutions, the technical effects and advantages provided by the present utility model are:

[0016] Through the settings of the blade body, the mounting grooves, the sliding grooves, the limiting grooves, the mounting plate, the hexagonal bolt, the mounting block, the first tool tip, the second tool tip and the third tool tip, the cutting edges in the PCBN blade can be replaced. There is no need to replace the entire PCBN blade when the cutting edge is damaged. The mounting block on one side of the first tool tip is taken out from the mounting groove in the blade body, and the sliding blocks on the upper and lower sides of the mounting block are limited in the sliding grooves in the mounting groove, thereby strengthening the stability when the mounting block and the first tool tip are replaced. Then, the mounting plate is placed in the limiting groove on the blade body, and the hexagonal bolt is used to penetrate the mounting block for fixed connection. Such a setting can not only replace multiple tool tips, but also strengthen the firmness during replacement;

[0017] Through the settings of the blade body, the installation groove, the mounting plate, the limiting rod, the mounting block, the limiting hole, the first cutter head, the second cutter head and the third cutter head, when the mounting block and the first cutter head are installed in the installation groove inside the blade body, the limiting rod under the mounting plate is inserted into the limiting holes on the blade body and the mounting block, so that during the installation process of replacing the first cutter head, the firmness of the entire replacement of the first cutter head is strengthened again, avoiding loosening during work. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the utility model;

[0020] Figure 2 Schematic diagram of the structure of the blade body and the first cutter head of the utility model;

[0021] Figure 3 Schematic diagram of the internal structure of the blade body of the utility model;

[0022] Figure 4 Schematic diagram of the structure of the first cutter head and the mounting block of the utility model;

[0023] Figure 5 For the utility model Figure 3 Schematic diagram of the enlarged view structure at A in

[0024] Description of the reference numerals:

[0025] 1. Blade body; 2. Mounting hole; 3. Wear-resistant ring; 4. Wear-resistant pattern; 5. Installation groove; 6. Sliding groove; 7. Limiting groove; 8. Mounting plate; 9. Hexagonal bolt; 10. Limiting rod; 11. Mounting block; 12. Slide block; 13. Limiting hole; 14. Thread groove; 15. First cutter head; 16. Second cutter head; 17. Third cutter head. Detailed implementation manners

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail with reference to the drawings.

[0027] The present utility model provides a replaceable multi-edge PCBN blade as Figures 1-5 shown, including a blade body 1;

[0028] The mounting hole 2 is opened inside the blade body 1 and is used for mounting the blade body 1;

[0029] The installation groove 5 is opened inside the periphery of the blade body 1 for replacing the tool bit. The upper and lower surfaces inside the installation groove 5 are provided with sliding grooves 6. The peripheral surface above the blade body 1 is provided with a limiting groove 7. An installation plate 8 is installed inside the limiting groove 7. A hexagonal bolt 9 penetrates through the upper part of the installation plate 8. An installation block 11 is movably connected inside the installation groove 5. One end of the installation block 11 is fixedly installed with a first tool bit 15, a second tool bit 16 and a third tool bit 17. The installation block 11 on one side of the first tool bit 15 is inserted into the installation groove 5 in the blade body 1, and the sliders 12 on the upper and lower sides of the installation block 11 are limited in the sliding grooves 6 in the installation groove 5, thereby strengthening the stability during the replacement of the installation block 11 and the first tool bit 15. Then, the installation plate 8 is placed in the limiting groove 7 on the blade body 1, and the hexagonal bolt 9 penetrates through the installation block 11 to fixedly connect it. Such a setting can not only replace multiple tool bits, but also strengthen the firmness during replacement.

[0030] As Figure 1 、 Figure 3 and Figure 5 shown, a wear-resistant ring 3 is arranged inside the installation hole 2, and wear-resistant lines 4 are arranged on the inner surface of the wear-resistant ring 3. After the installation bolt passes through the installation hole 2 and is fixed and tightened, when the blade body 1 is turning, friction will occur between the installation hole 2 and the installation bolt. At this time, the wear-resistant ring 3 and the wear-resistant lines 4 on the inner wall of the installation hole 2 will increase the wear-resistant effect of the installation hole 2, thereby reducing the wear degree between the installation bolt and the installation hole 2, avoiding the deformation of the caliber size of the installation hole 2, improving the service life of the installation hole 2, and also avoiding affecting the working stability of the blade body 1.

[0031] As Figure 2 、 Figure 3 and Figure 4 shown, the sliding groove 6 opened inside the installation groove 5 is slidably connected with the sliders 12 fixedly installed on the upper and lower sides of the installation block 11. The installation block 11 is trapezoidally arranged and has the same size as the installation groove 5 inside the blade body 1. The sliders 12 fixed on the upper and lower sides of the installation block 11 are inserted into the sliding grooves 6 in the installation groove 5, improving the firmness of the whole installation block 11 and the first tool bit 15 on one side.

[0032] As Figure 4 shown, limiting rods 10 are fixedly installed on both sides below the installation plate 8, and limiting holes 13 are opened on both sides of the upper surface of the installation block 11. The limiting rods 10 penetrate through the blade body 1 and the installation block 11. The limiting rods 10 below the installation plate 8 are inserted into the limiting holes 13 on the blade body 1 and the installation block 11. In this way, during the installation process of replacing the first tool bit 15, the firmness of the whole replacement of the first tool bit 15 is strengthened again, avoiding looseness during work.

[0033] AsFigure 4 As shown, a threaded groove 14 is provided on the upper surface of the mounting block 11. The hexagon bolt 9 passes through the mounting plate 8, the blade body 1 and the mounting block 11. By using the hexagon bolt 9 passing through the hexagon bolt 9 and the mounting block 11, the stability of the replacement of the first cutting head 15 is enhanced.

[0034] As Figure 1 , Figure 2 and Figure 4 As shown, there are three groups of mounting grooves 5 provided on the periphery of the blade body 1. The three groups of mounting grooves 5 are matched with the mounting block 11, the first cutting head 15, the second cutting head 16 and the third cutting head 17. The size of the mounting block 11 on one side of the first cutting head 15, the second cutting head 16 and the third cutting head 17 is consistent with the size inside the mounting groove 5. This not only facilitates the replacement and installation of the first cutting head 15, the second cutting head 16 and the third cutting head 17 on the blade body 1, but also enhances the connectivity and aesthetics between them.

[0035] The working principle of this utility model: First, insert the mounting block 11 on one side of the first cutting head 15, the second cutting head 16 and the third cutting head 17 into the blade body 1 from one side of the internally provided mounting groove 5. The limiting sliding between the sliding blocks 12 fixedly installed on the upper and lower sides of the mounting block 11 and the sliding grooves 6 in the mounting groove 5 improves the stability. Then, insert the limiting rod 10 below the mounting plate 8 into the limiting groove 7 above the blade body 1 and the limiting hole 13 on the mounting block 11 to enhance the firmness between them. After the mounting plate 8 is fixed in the limiting groove 7, use the hexagon bolt 9 to pass through the blade body 1 and the internal mounting block 11 for threaded connection. At this time, after the first cutting head 15, the second cutting head 16 and the third cutting head 17 are all installed and fixed, then place the blade body 1 on the tool, and fix it tightly by passing the mounting bolt through the mounting hole 2. When the blade body 1 is in the turning operation, friction will be generated between the mounting hole 2 and the mounting bolt. At this time, the wear-resistant ring 3 and the wear-resistant pattern 4 on the inner wall of the mounting hole 2 will increase the wear-resistant effect of the mounting hole 2, thereby reducing the wear degree between the mounting bolt and the mounting hole 2 and avoiding the deformation of the caliber size of the mounting hole 2. When the first cutting head 15, the second cutting head 16 and the third cutting head 17 are damaged, replace them through the above steps. Just like this, the use process of this replaceable multi-edge PCBN blade is completed.

[0036] Only some exemplary embodiments of the present utility model are described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A replaceable multi-faceted PCBN blade, characterized in that: It comprises a blade body (1); A mounting hole (2) is provided inside the blade body (1) and is used for mounting the blade body (1); The mounting groove (5) is provided inside the periphery of the blade body (1) and is used for replacing the cutter head. The upper and lower surfaces of the inner part of the mounting groove (5) are provided with a slide groove (6). The upper peripheral surface of the blade body (1) is provided with a limit groove (7). A mounting plate (8) is installed inside the limit groove (7). A hexagonal bolt (9) penetrates the upper part of the mounting plate (8). The inner part of the mounting groove (5) is movably connected with a mounting block (11). One end of the mounting block (11) is fixedly installed with a first cutter head (15), a second cutter head (16) and a third cutter head (17).

2. The replaceable multi-faceted PCBN blade according to claim 1, characterized in that: A wear-resistant ring (3) is provided inside the mounting hole (2), and the inner surface of the wear-resistant ring (3) is provided with wear-resistant patterns (4).

3. The replaceable multi-faceted PCBN blade according to claim 1, characterized in that: The sliding groove (6) provided inside the installation groove (5) is slidably connected to the sliding blocks (12) fixedly installed on the upper and lower sides of the installation block (11); the installation block (11) is trapezoidally arranged and has the same size as the installation groove (5) inside the blade body (1).

4. The replaceable multi-faceted PCBN blade according to claim 1, characterized in that: Limit rods (10) are fixedly mounted on both sides of the lower side of the mounting plate (8), and limit holes (13) are provided on both sides of the upper side of the mounting block (11). The limit rods (10) penetrate the blade body (1) and the mounting block (11).

5. The replaceable multi-faceted PCBN blade according to claim 1, characterized in that: A threaded groove (14) is provided on the upper surface of the mounting block (11), and the hexagonal bolt (9) penetrates the mounting plate (8), the blade body (1) and the mounting block (11).

6. The replaceable multi-faceted PCBN blade according to claim 1, characterized in that: Three groups of mounting grooves (5) are provided on the periphery of the blade body (1), and the three groups of mounting grooves (5) match the mounting block (11) and the first blade head (15), the second blade head (16), and the third blade head (17).

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