PCD (Poly Crystal Diamond) multi-cutting-edge composite workpiece grooving cutter

Abstract

The utility model discloses a PCD (Poly Crystal Diamond) multi-edge composite workpiece grooving cutter, which relates to the field of PCD cutters and comprises a cutter body, split cutter holders are equidistantly arranged at the bottom of the cutter body, edge grooves are equidistantly arranged on the outer rings of the split cutter holders, blades are fixedly connected to one sides of the edge grooves through bolts, and the blades between two adjacent split cutter holders are mutually staggered. The top of each split tool apron extends upwards to form an embedding part, convex corners are arranged on the outer side of each embedding part at equal intervals, and embedding grooves are formed in the bottoms of the tool body and the split tool aprons. According to the cutter, the split tool aprons and the blades are arranged at equal intervals, and the blades are arranged in a staggered mode, a wider cutting face can be formed in the cutting process, and therefore the cutting efficiency is improved; and the cutting depth can be flexibly adjusted by adjusting the number of the split tool aprons, so that the tool can adapt to different workpieces and cutting requirements, and the cutting flexibility and applicability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCD cutter especially relates to a PCD multi-blade composite workpiece grooving cutter. BACKGROUND

[0002] As a kind of material with extremely high hardness and wear resistance, polycrystalline diamond (PCD) is widely used in the manufacture of cutting tools, and most of the existing PCD cutters adopt single-blade or fixed number of blade design, which leads to limited cutting area in the cutting process, and it is difficult to further improve the cutting efficiency, especially in the machining of large workpieces or occasions requiring large cutting amount, the cutting efficiency of the existing PCD cutter is not satisfactory.

[0003] The cutting depth of the existing PCD cutter is usually realized by replacing cutters of different sizes or adjusting cutting parameters, but this way is cumbersome to operate, and it is difficult to accurately control the cutting depth. In addition, replacing the cutter will also increase the production cost and time cost. SUMMARY

[0004] In order to make up for the shortcomings of the prior art, the purpose of the utility model is to provide a PCD multi-blade composite workpiece grooving cutter, and the technical problems to be solved are as follows: how to improve the cutting efficiency and flexibility to adapt to different cutting areas and cutting depths.

[0005] In order to solve the problems of the prior art, the technical scheme of the utility model is as follows:

[0006] A PCD multi-blade composite workpiece grooving cutter, comprising a cutter body, the bottom of the cutter body is provided with split tool holders at equal intervals, the outer circle of the split tool holder is provided with blade grooves at equal intervals, the blade grooves are fixedly connected with blades on one side through bolts, the blades are staggered with each other between the adjacent two split tool holders, the top of the split tool holder is upwardly extended with an embedding part, the outer side of the embedding part is provided with convex corners at equal intervals, the cutter body and the bottom of the split tool holder are provided with embedding grooves, the inner wall of the embedding groove is provided with concave corners at equal intervals, the embedding parts are respectively inserted in the corresponding embedding grooves, and the convex corners are respectively embedded in the corresponding concave corners.

[0007] Preferably, the bottom of the cutter body is provided with chip removal grooves at equal intervals, and the chip removal grooves of the cutter body are one-to-one aligned with the blade grooves of the adjacent split tool holders. In the cutting process, the chip removal grooves can timely discharge the generated chips from the cutting area, prevent the chips from accumulating to cause the cutting resistance to increase and the cutting temperature to rise, and thus protect the cutter and the workpiece from being damaged.

[0008] Preferably, the inner wall of the cutter body is provided with internal threads, and the center of the split tool holder is provided with a circular hole. The cooperation of the internal threads and the circular hole provides mounting space for threaded rods or other fasteners, so that the cutter body and the split tool holder can be firmly connected together to form an integral structure.

[0009] Preferably, the cutter body and the plurality of split tool holders are internally provided with threaded rods, one end of the threaded rods sequentially penetrates the plurality of split tool holders and is threadedly connected at the end inside the cutter body, the threaded rods tightly fix the cutter body and the split tool holders together through thread connection, and ensure that the cutter does not loosen due to vibration or impact during cutting.

[0010] Preferably, a groove is symmetrically formed at the top of the cutter body, which can facilitate the installation of other accessories.

[0011] Preferably, the convex corner of the embedded part at the top of the split tool holder is staggered with the concave corner of the embedded groove at the bottom, so that the blades on the upper and lower split tool holders can be naturally staggered after installation, avoiding the blades on the upper and lower split tool holders from interfering with each other.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model can form a wider cutting surface during cutting by the equidistant split tool holders and blades and the staggered blade layout, thereby improving the cutting efficiency. In addition, the depth of cutting can be flexibly adjusted by adjusting the number of split tool holders, so that the cutter can adapt to different workpieces and cutting requirements, and the flexibility and applicability of cutting are improved.

[0014] 2. The split tool holders of the utility model can be freely spliced, and the split tool holders and the cutter body can be firmly fixed together by corresponding length threaded rods to form a whole structure. This splicing method is not only simple and convenient, but also can ensure the overall rigidity and cutting accuracy of the cutter. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole structure schematic view of the utility model.

[0016] Fig. 2 It is a cutter body structure schematic view of the utility model.

[0017] Fig. 3 It is a split tool holder structure schematic view of the utility model.

[0018] The drawings are as follows: 1, cutter body; 2, split tool holder; 3, blade groove; 4, blade; 5, embedded part; 6, convex corner; 7, embedded groove; 8, concave corner; 9, chip removal groove; 10, internal thread; 11, groove; 12, threaded rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0020] PCD multi-blade composite workpiece grooving tool has a tool body 1;

[0021] like Figs. 1-3 As shown, the bottom of the cutter body 1 is provided with split tool holders 2 at equal intervals, and the outer ring of the split tool holders 2 is provided with cutting grooves 3 at equal intervals. A blade 4 is fixedly connected to one side of the cutting groove 3 by bolts. The blades 4 are staggered between two adjacent split tool holders 2, so that the tool can form a wider cutting surface during the cutting process and improve cutting efficiency.

[0022] The top of each split tool holder 2 has an insert portion 5 extending upwards. The outer side of the insert portion 5 is provided with convex corners 6 at equal intervals. The bottom of both the tool body 1 and the split tool holder 2 is provided with an insert groove 7. The inner wall of the insert groove 7 is provided with concave corners 8 at equal intervals. The insert portion 5 is slidably inserted into the corresponding insert groove 7, and the convex corners 6 are respectively embedded in the corresponding concave corners 8. This not only ensures the stable installation of the split tool holder 2 on the tool body 1, but also enables the tool to maintain high stability and rigidity when subjected to cutting force.

[0023] like Figs. 1-3 As shown, chip removal grooves 9 are equidistantly provided at the bottom of the cutter body 1. The chip removal grooves 9 of the cutter body 1 are aligned with the cutting grooves 3 of the adjacent split tool holder 2, which helps to remove the chips generated during the cutting process in a timely manner and prevent the accumulation of chips from having an adverse effect on the cutting effect and tool life.

[0024] like Figs. 1-3 As shown, the inner wall of the cutter body 1 is provided with an internal thread 10, and the center of the split cutter holder 2 is provided with a round hole. The cooperation between the internal thread 10 and the round hole provides installation space for the threaded rod 12 or other fasteners, so that the cutter body 1 and the split cutter holder 2 can be firmly connected together to form an integral structure.

[0025] like Figs. 1-3 As shown, the cutter body 1 and several separate cutter holders 2 are provided with threaded rods 12 inside. One end of the threaded rod 12 passes through several separate cutter holders 2 in sequence and is threaded to the inside of the cutter body 1 at the end. By passing through multiple separate cutter holders 2 in sequence and threaded to the inside of the cutter body 1, the cutter body 1 and the separate cutter holders 2 can be firmly fixed together to form an integral structure.

[0026] like Figs. 1-3 As shown, the top of the blade body 1 has symmetrical grooves 11, which can facilitate the installation of other accessories.

[0027] like Figs. 1-3 As shown, the convex corner 6 of the top embedding part 5 of the split blade holder 2 and the concave corner 8 of the bottom embedding groove 7 are offset from each other, so that the blades 4 on the upper and lower split blade holders 2 can be naturally offset after installation, avoiding the blades 4 on the upper and lower split blade holders 2 from obstructing each other.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCD multi-tip composite workpiece grooving tool comprising a tool body (1), characterized in that, The bottom of the cutter body (1) is provided with split knife seats (2) at equal intervals, the outer circle of the split knife seat (2) is provided with blade grooves (3) at equal intervals, the blade grooves (3) are fixedly connected with blades (4) on one side through bolts, the blades (4) are staggered with each other between the two adjacent split knife seats (2), the split knife seat (2) is provided with an embedded part (5) extending upward at the top, the embedded part (5) is provided with convex corners (6) at equal intervals on the outer side, the cutter body (1) and the split knife seat (2) are provided with embedded grooves (7) at the bottom, the embedded grooves (7) are provided with concave corners (8) at equal intervals on the inner wall, the embedded part (5) is respectively inserted in the corresponding embedded groove (7), and the convex corner (6) is respectively embedded in the corresponding concave corner (8).

2. The PCD multi-tip composite workpiece grooving cutter according to claim 1, wherein, The bottom of the cutter body (1) is provided with chip removal grooves (9) at equal intervals, and the chip removal grooves (9) of the cutter body (1) are one-to-one matched with the blade grooves (3) of the adjacent split knife seats (2).

3. The PCD multi-tip composite workpiece grooving cutter of claim 1, wherein, The inner wall of the cutter body (1) is provided with internal threads (10), and the split knife seat (2) is provided with a circular hole at the center.

4. The PCD multi-tip composite workpiece grooving cutter according to claim 3, wherein, The cutter body (1) and the split knife seat (2) are provided with threaded rods (12) inside, one end of the threaded rod (12) penetrates through the split knife seat (2) in sequence and is threadedly connected to the inside of the cutter body (1) at the terminal end.

5. The PCD multi-tip composite workpiece grooving cutter of claim 1, wherein, The top of the cutter body (1) is provided with a recess (11) symmetrically.

6. The PCD multi-tip composite workpiece grooving cutter of claim 1, wherein, The convex corner (6) of the embedded part (5) at the top of the split knife seat (2) is staggered with the concave corner (8) of the embedded groove (7) at the bottom.

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