A double-sided composite structure PCBN blade

Abstract

The utility model discloses a double-sided composite structure PCBN blade, including a blade body, two clamping grooves are provided on the top of the blade body, wear-resistant blade bodies are arranged inside the two clamping grooves, a plurality of clamping convex strips are fixedly connected on both sides of the wear-resistant blade body, and an arc surface abutment groove is provided on the back of the wear-resistant blade body. The utility model slides and inserts the clamping convex strips into the sliding groove until the outside of the wear-resistant blade body abuts against the inner wall of the abutment groove, and then inserts the screw into the inside of the second screw hole groove and is threadedly connected to the screw hole at the bottom of the wear-resistant blade body to fix the position of the wear-resistant blade body, and then the blade is installed to the installation groove of the blade rod, and the blade is fixed by rotating the pressure plate to the top of the wear-resistant blade body. After that, when the wear-resistant blade body is worn and loosened after long-term use, personnel can directly disassemble the wear-resistant blade body for replacement without replacing the blade as a whole, which effectively improves the service life and use cost of the PCBN blade.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBN blades, in particular to a double-sided composite structure PCBN blade. Background Art

[0002] PCBN, or polycrystalline cubic boron nitride, is a new type of tool material synthesized by artificial methods and its hardness is second only to natural diamond. It is the most suitable tool material for high-speed cutting of iron-based metals. It is often used for precision turning of hardened steel with PCBN blades, machining of hard cast iron and gray cast iron, high-speed boring of casting holes, reaming of small holes in hardened steel or hard castings, and cutting of difficult-to-machine materials.

[0003] However, most existing PCBN blades are integrally formed. Even if the cutting heads of a few blades can be replaced, the blade body still needs to be replaced as a whole after long-term use and wear of the connecting parts fixed by the pressure plate, which inevitably causes waste of blade use.

[0004] Therefore, it is necessary to provide a double-sided composite structure PCBN blade to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a double-sided composite structure PCBN blade.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-sided composite structure PCBN blade, comprising a blade body, two clamping grooves are arranged on the top of the blade body, wear-resistant blade bodies are arranged inside the two clamping grooves, a plurality of clamping convex strips are fixedly connected to the two sides of the wear-resistant blade body, an arc surface abutment groove is arranged on the back of the wear-resistant blade body, an abutment groove is arranged on one side of the inner wall of the clamping groove, a plurality of sliding grooves are arranged on both sides of the inner wall of the clamping groove, a screw hole is arranged on the back of the wear-resistant blade body, the shape of the wear-resistant blade body corresponds to the clamping groove, the back position of the wear-resistant blade body abuts at the position of the abutment groove, and the The snap-fitting convex strip is snapped into the inside of the sliding groove, and the top of the wear-resistant blade body is made of rough frosted material. The snap-fitting convex strip is aligned with the sliding groove and slid into it until the outside of the wear-resistant blade body abuts against the inner wall of the abutting groove, and then the screw is inserted into the inside of the second screw hole groove and threadedly connected to the screw hole at the bottom of the wear-resistant blade body to fix the position of the wear-resistant blade body, and then the blade is installed to the mounting slot of the blade rod, and the blade is fixed to the top of the wear-resistant blade body by rotating the pressure plate. After that, when the wear-resistant blade body becomes worn and loose after long-term use, the personnel can directly disassemble the wear-resistant blade body for replacement without replacing the entire blade, which effectively improves the service life and use cost of the PCBN blade.

[0007] As a further description of the above technical solution:

[0008] A fixing groove is provided inside the blade body, and two screw hole grooves 1 are provided on the inner wall of the fixing groove. The screw hole grooves 1 are used for inserting screws to fix the cutter head, and the arc surface connecting groove corresponds to the arc of the fixing groove.

[0009] As a further description of the above technical solution:

[0010] The back side of the blade body is provided with two screw hole grooves 2, and the positions of the two screw hole grooves 2 correspond to the positions of the screw holes at the bottom of the wear-resistant blade body.

[0011] As a further description of the above technical solution:

[0012] The outside of the blade body is provided with two installation grooves, and the insides of the two installation grooves are provided with two positioning holes, and the two positioning holes are used for clamping the two positioning rods at the bottom of the cutter head.

[0013] As a further description of the above technical solution:

[0014] An insertion groove is provided inside the installation groove, and the insertion groove is located between the two positioning holes.

[0015] As a further description of the above technical solution:

[0016] A cutter head is installed inside the installation groove, and two positioning rods are fixedly connected to the back side of the cutter head.

[0017] As a further description of the above technical solution:

[0018] A threaded barrel is fixedly connected to the back of the cutter head, a screw hole groove three is opened at one end of the threaded barrel, the threaded barrel is located between two positioning rods, and the threaded barrel is located inside the insertion groove.

[0019] The utility model has the following beneficial effects:

[0020] Compared with the prior art, the double-sided composite structure PCBN blade is inserted by sliding the snap-fit ​​convex strip into the sliding groove until the outside of the wear-resistant blade body abuts against the inner wall of the abutting groove, and then the screw is inserted into the inside of the second screw hole groove and threadedly connected to the screw hole at the bottom of the wear-resistant blade body to fix the position of the wear-resistant blade body. The blade is then installed in the mounting slot of the tool rod, and the blade is fixed by rotating the pressure plate to the top of the wear-resistant blade body. After that, when the wear-resistant blade body becomes worn and loose after long-term use, personnel can directly disassemble the wear-resistant blade body for replacement without replacing the entire blade, which effectively improves the service life and use cost of the PCBN blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a three-dimensional diagram of the overall splitting of a double-sided composite structure PCBN blade proposed by the utility model;

[0022] Figure 2 A schematic diagram of the blade body structure of a double-sided composite structure PCBN blade proposed by the utility model;

[0023] Figure 3 A schematic diagram of the cutter head structure of a double-sided composite structure PCBN blade proposed by the utility model;

[0024] Figure 4 for Figure 1 A partial enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Blade body; 2. Arc surface butt groove; 3. Snap-on groove; 4. Wear-resistant blade body; 5. Snap-on convex strip; 6. Insertion groove; 7. Positioning hole; 8. Mounting groove; 9. Screw hole groove one; 10. Screw hole groove two; 11. Screw hole groove three; 12. Threaded barrel; 13. Positioning rod; 14. Blade head; 15. Abutment groove; 16. Sliding groove; 17. Fixing groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4 The utility model provides a double-sided composite structure PCBN blade: it includes a blade body 1, the top of the blade body 1 is provided with two clamping grooves 3, the inside of the two clamping grooves 3 are provided with a wear-resistant blade body 4, both sides of the wear-resistant blade body 4 are fixedly connected with a plurality of clamping convex strips 5, the back of the wear-resistant blade body 4 is provided with an arc surface butting groove 2, one side of the inner wall of the clamping groove 3 is provided with an abutting groove 15, both sides of the inner wall of the clamping groove 3 are provided with a plurality of sliding grooves 16, the back of the wear-resistant blade body 4 is provided with a screw hole, the shape of the wear-resistant blade body 4 corresponds to the clamping groove 3, the back position of the wear-resistant blade body 4 is abutted at the position of the abutting groove 15, the clamping convex strip 5 is clamped in the inside of the sliding groove 16, the top of the wear-resistant blade body 4 is made of rough frosted material to increase the connection stability between the pressure plate and the blade body, and some of the sliding grooves 16 are wave-shaped grooves.

[0029] A fixing groove 17 is provided inside the blade body 1 , and two screw hole grooves 9 are provided on the inner wall of the fixing groove 17 . The screw hole groove 9 is used for inserting screws to fix the cutter head 14 . The arc surface connecting groove 2 corresponds to the arc of the fixing groove 17 .

[0030] The back side of the blade body 1 is provided with two screw hole grooves 10 , and the positions of the two screw hole grooves 10 correspond to the positions of the screw holes at the bottom of the wear-resistant blade body 4 , and are used for screws to be inserted into and fix the position of the wear-resistant blade body 4 .

[0031] The blade body 1 has two mounting grooves 8 formed outside, and two positioning holes 7 formed inside the two mounting grooves 8 . The two positioning holes 7 are used to clamp the two positioning rods 13 at the bottom of the cutter head 14 to improve the stability of the cutter head 14 .

[0032] An insertion groove 6 is formed inside the installation groove 8 , and the insertion groove 6 is located between the two positioning holes 7 .

[0033] A cutter head 14 is installed inside the installation groove 8 , and two positioning rods 13 are fixedly connected to the back side of the cutter head 14 .

[0034] A threaded barrel 12 is fixedly connected to the back of the cutter head 14 , and a screw hole groove 3 11 is opened at one end of the threaded barrel 12 . The threaded barrel 12 is located between two positioning rods 13 , and the threaded barrel 12 is located inside the insertion groove 6 .

[0035] Working principle: When installing the PCBN blade, first align the two positioning rods 13 with the positioning holes 7 and insert them so that the cutter head 14 is installed inside the installation slot 8. At the same time, the threaded barrel 12 is inserted into the insertion slot 6. Then, the screw is inserted into the screw hole slot 1 9 and is threadedly connected to the screw hole slot 3 11 to fix the position of the cutter head 14.

[0036] Then, the wear-resistant blade body 4 is installed by aligning the snap-fitting convex strip 5 with the sliding groove 16 and slidingly inserting it until the outside of the wear-resistant blade body 4 abuts against the inner wall of the abutting groove 15, and then inserting a screw into the inside of the screw hole groove 10 and threading it into the screw hole at the bottom of the wear-resistant blade body 4 to fix the position of the wear-resistant blade body 4;

[0037] Then, the assembled blade is installed in the installation slot of the blade rod, and the blade is fixed by rotating the pressure plate to the top of the wear-resistant blade body 4.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-sided composite structure PCBN blade, comprising a blade body (1), characterized in that: The top of the blade body (1) is provided with two engaging grooves (3), the interiors of the two engaging grooves (3) are provided with a wear-resistant blade body (4), both sides of the wear-resistant blade body (4) are fixedly connected with a plurality of engaging convex strips (5), the back of the wear-resistant blade body (4) is provided with an arc surface contact groove (2), one side of the inner wall of the engaging groove (3) is provided with an abutment groove (15), and both sides of the inner wall of the engaging groove (3) are provided with a plurality of sliding grooves (16).

2. The double-sided composite structure PCBN insert according to claim 1, characterized in that: A fixing groove (17) is provided inside the blade body (1), and two screw hole grooves (9) are provided on the inner wall of the fixing groove (17).

3. The double-sided composite structure PCBN insert according to claim 1, characterized in that: The back side of the blade body (1) is provided with two screw hole slots 2 (10).

4. The double-sided composite structure PCBN insert according to claim 1, characterized in that: Two installation grooves (8) are provided on the outside of the blade body (1), and two positioning holes (7) are provided inside the two installation grooves (8).

5. The double-sided composite structure PCBN insert according to claim 4, characterized in that: An insertion groove (6) is provided inside the installation groove (8), and the insertion groove (6) is located between the two positioning holes (7).

6. The double-sided composite structure PCBN insert according to claim 4, characterized in that: A cutter head (14) is installed inside the installation groove (8), and two positioning rods (13) are fixedly connected to the back side of the cutter head (14).

7. The double-sided composite structure PCBN insert according to claim 6, characterized in that: The back of the cutter head (14) is fixedly connected with a threaded barrel (12), one end of the threaded barrel (12) is provided with a screw hole groove (11), and the threaded barrel (12) is located between two positioning rods (13).

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