Reaming type PCD (Polycrystalline Diamond) spiral guide reamer for oil-way valve plate

Abstract

The utility model relates to the field of machining tools, in particular to an oil way valve plate reaming type PCD spiral guide reamer which comprises a connecting tool handle and a PCD tool bit, the PCD tool bit is arranged at the bottom of the connecting tool handle, two chip grooves are symmetrically formed in the PCD tool bit, symmetrical cutting blocks are formed by the PCD tool bit through the chip grooves, spiral grooves are formed in the cutting blocks, and the PCD tool bit is connected with the PCD tool bit through the spiral grooves. And one side of the cutting block is a cutting edge, and the other side is provided with a metal ceramic blade. According to the PCD reamer, the overall durability and the cutting efficiency of the reamer are improved through the PCD reamer head, meanwhile, compared with a traditional reamer, the spiral groove, the chip groove, the cooling liquid outlet hole and the guide block are arranged in a matched mode, cooling liquid can drive chips to be discharged through the chip groove in time in the cutting process, and the service life of the reamer is prolonged. And the processing defect caused by residual chippings is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machining tools, in particular to an oil circuit valve plate reaming type PCD spiral guide reamer. Background Art

[0002] PCD tools, also known as polycrystalline diamond tools, have the characteristics of high hardness, high compressive strength, good thermal conductivity and good wear resistance, and can achieve high processing accuracy and processing efficiency in high-speed cutting. Reamers are tools used for hole expansion or hole repair in machining tools, while PCD reamer is a tool used for hole expansion or hole repair that uses polycrystalline diamond as a blade.

[0003] At present, most of the reaming processes of oil circuit valve plates and other components are done with reamers. However, some traditional reamers still have problems such as non-wear-resistant blades, inadequate chip removal, and easy formation of scales due to stretching and tearing of metal materials, resulting in low processing efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an oil circuit valve plate reaming type PCD spiral guide reamer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The oil circuit valve plate reaming type PCD spiral guide reamer comprises a connecting shank and a PCD cutter head. The bottom of the connecting shank is provided with a PCD cutter head. Two chip grooves are symmetrically opened on the PCD cutter head. The PCD cutter head forms a symmetrical cutting block through the chip grooves. The cutting block is provided with a spiral groove, and one side of the cutting block is a cutting edge, and the other side is equipped with a metal ceramic blade.

[0007] In addition, a preferred structure is that a coolant inlet hole is opened on the upper portion of the connecting tool handle, and the coolant inlet hole is connected to the inside of the connecting tool handle.

[0008] In addition, a preferred structure is that a plurality of coolant outlet holes are opened on the inner wall of the bottom thread of the spiral groove, the opening direction of the holes is the same as that of the spiral groove, and the coolant outlet holes are connected to the coolant inlet holes.

[0009] In addition, a preferred structure is that the inner angle of the chip removal groove is set as an inner rounded angle.

[0010] In addition, a preferred structure is that a guide block is provided at the connection between the tool handle and the PCD tool head, and the guide block is installed on the upper part of the chip groove.

[0011] In addition, a preferred structure is that one side of the cutting block forms a multi-section blade edge through a spiral groove, and the spiral groove is connected to the chip groove, wherein a mounting platform is opened on the other side of the cutting block, and a metal ceramic blade is fixedly installed on the mounting platform.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, the overall durability and cutting efficiency of the reamer are improved by the arrangement of the PCD cutter head. Meanwhile, compared with the traditional reamer, this mechanism, through the coordinated arrangement of the spiral groove, the chip groove, the coolant outlet hole and the guide block, enables the coolant to promptly drive the chips to be discharged through the chip groove during cutting, thereby avoiding processing defects caused by residual chips.

[0014] At the same time, by setting up PCD cutter heads and metal ceramic blades, the overall strength and cutting performance of the reamer can be further improved, effectively improving its processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the oil circuit valve plate reaming type PCD spiral guide reamer proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the bottom structure of the oil circuit valve plate reaming type PCD spiral guide reamer proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the guide block structure of the oil circuit valve plate reaming type PCD spiral guide reamer proposed by the utility model;

[0018] Figure 4 It is a schematic diagram of the coolant outlet structure of the oil circuit valve plate reaming type PCD spiral guide reamer proposed by the utility model.

[0019] In the figure: 1. Connecting tool handle; 101. Coolant inlet hole; 2. PCD tool head; 21. Mounting table; 22. Blade edge; 3. Spiral groove; 4. Metal ceramic blade; 5. Coolant outlet hole; 6. Chip groove; 7. Guide block; 8. Inner fillet; 9. Cutting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 The oil circuit valve plate reaming type PCD spiral guide reamer comprises a connecting handle 1 and a PCD cutter head 2. The PCD cutter head 2 is arranged at the bottom of the connecting handle 1. Two chip grooves 6 are symmetrically opened on the PCD cutter head 2. The PCD cutter head 2 forms a symmetrical cutting block 9 through the chip grooves 6. The cutting block 9 is provided with a spiral groove 3, and one side of the cutting block 9 is a cutting edge 22, and the other side is equipped with a metal ceramic blade 4.

[0022] Furthermore, a coolant inlet hole 101 is provided on the upper portion of the connecting tool handle 1 , and the coolant inlet hole 101 is communicated with the interior of the connecting tool handle 1 .

[0023] Furthermore, a plurality of coolant outlet holes 5 are opened on the inner wall of the bottom thread of the spiral groove 3 , and the opening direction thereof is the same as that of the spiral groove 3 , and the coolant outlet holes 5 are connected to the coolant inlet hole 101 .

[0024] Furthermore, the inner angle of the chip removal groove 6 is set to be an inner fillet 8, and the inner fillet 8 can effectively improve the chip removal efficiency and avoid chip accumulation or blockage.

[0025] Furthermore, a guide block 7 is provided at the connection between the tool handle 1 and the PCD tool head 2, and the guide block 7 is installed on the upper part of the chip removal groove 6. The guide block 7 provides a guiding performance during chip removal, thereby improving chip removal efficiency.

[0026] Furthermore, one side of the cutting block 9 forms a multi-segment blade edge 22 through the spiral groove 3, and the spiral groove 3 is connected to the chip groove 6, wherein a mounting platform 21 is opened on the other side of the cutting block 9, and a metal ceramic blade 4 is fixedly mounted on the mounting platform 21.

[0027] In this embodiment, the PCD cutter head 2 forms a symmetrical cutting block 9 by setting the chip grooves 6 on both sides. One side of the cutting block 9 is provided with a PCD blade edge 22 for cutting, and the other side is provided with a mounting platform 21. The metal ceramic blade 4 installed on the mounting platform 21 cooperates with the PCD blade edge 22 for cutting, which can improve the durability and cutting efficiency of the overall reamer, reduce cutting force and reduce wear. At the same time, in actual use, the PCD cutter head 2 performs cutting operations on the workpiece through the blade edge 22 and the metal ceramic blade 4, and the coolant is introduced into the cutting hole through the coolant inlet hole 101 and the coolant outlet hole 5. Since the coolant outlet hole 5 is in the same direction as the spiral direction of the spiral groove 3, the coolant drives the chips generated by the processing into the chip groove 6, and through the setting of the inner fillet 8 in the chip groove 6, the chips are effectively discharged, and the chip removal efficiency is guaranteed by the guide block 7 on the top. At the same time, due to the setting of the spiral groove 3, the reamer remains stable during the processing, improves the chip removal efficiency, prevents blockage during the cutting process, and further improves the processing efficiency.

[0028] In the utility model, the overall durability and cutting efficiency of the reamer are improved by the arrangement of the PCD tool head 2. At the same time, compared with the traditional reamer, this mechanism, through the coordinated arrangement of the spiral groove 3, the chip groove 6, the coolant outlet 5, and the guide block 7, can drive the coolant to promptly drive the chips to be discharged through the chip groove 6 during cutting, thereby avoiding processing defects caused by residual chips.

[0029] At the same time, by providing the PCD cutter head 2 and the metal ceramic blade 4, the overall strength and cutting performance of the reamer can be further improved, and its processing efficiency can be effectively improved.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil circuit valve plate reaming type PCD spiral guide reamer, comprising a connecting shank (1) and a PCD cutter head (2), characterized in that: A PCD cutter head (2) is arranged at the bottom of the connecting tool handle (1), two chip grooves (6) are symmetrically opened on the PCD cutter head (2), and the PCD cutter head (2) forms a symmetrical cutting block (9) through the chip grooves (6), and the cutting block (9) is provided with a spiral groove (3), and one side of the cutting block (9) is a cutting edge (22), and the other side is equipped with a metal ceramic blade (4).

2. The oil circuit valve plate reaming type PCD spiral guide reamer according to claim 1, characterized in that: A cooling liquid inlet hole (101) is provided on the upper portion of the connecting tool handle (1), and the cooling liquid inlet hole (101) is communicated with the interior of the connecting tool handle (1).

3. The oil circuit valve plate reaming type PCD spiral guide reamer according to claim 1, characterized in that: The bottom threaded inner wall of the spiral groove (3) is provided with a plurality of coolant outlet holes (5), the opening direction of which is the same as that of the spiral groove (3), and the coolant outlet holes (5) are connected to the coolant inlet hole (101).

4. The oil circuit valve plate reaming type PCD spiral guide reamer according to claim 1, characterized in that: The inner angle of the chip removal groove (6) is set as an inner fillet (8).

5. The oil circuit valve plate reaming type PCD spiral guide reamer according to claim 1, characterized in that: A guide block (7) is provided at the connection point between the tool handle (1) and the PCD tool head (2), and the guide block (7) is installed on the upper part of the chip removal groove (6).

6. The oil circuit valve plate reaming type PCD spiral guide reamer according to claim 1, characterized in that: One side of the cutting block (9) forms a multi-segment blade edge (22) through a spiral groove (3), and the spiral groove (3) is connected to a chip removal groove (6), wherein a mounting platform (21) is provided on the other side of the cutting block (9), and a metal ceramic blade (4) is fixedly mounted on the mounting platform (21).

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