High-precision straight-shank Morse cone reamer

Abstract

The utility model relates to the technical field of conical reamers, in particular to a high-precision straight shank Morse conical reamer which comprises a straight shank, a reamer body and a positioning shaft, the reamer body is conical, a reamer groove and a chip groove are formed in the reamer body, a blade is arranged on the reamer groove, the cross section of the blade is in a parallelogram shape, and the positioning shaft is arranged on the straight shank. An inclined surface matched with the blade is arranged at the bottom of the cutter groove; a liquid inlet hole is formed in the side, close to the straight handle, of the cutter body, a liquid outlet hole is formed in the position, located in the chip discharging groove, of the cutter body, a liquid spraying hole is formed in the positioning shaft, and the liquid inlet hole is communicated with the liquid outlet hole and the liquid spraying hole. The liquid inlet hole, the liquid outlet hole and the liquid spraying hole are formed in the reamer body, cooling liquid is evenly and reliably thrown to the contact position of the blade and a workpiece by means of rotation of the reamer, cooling is carried out, the reamer is prevented from being locked, the machining reliability of the reamer is improved, and the reaming machining precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cone reamer, in particular to a high-precision straight-shank Morse cone reamer. Background Art

[0002] The Morse taper reamer is a cutting tool used for surface processing. It is widely used in the field of mechanical processing, especially for reaming of conical and cylindrical surfaces. It is mainly composed of a blade, a taper angle and a shank. The blade needs a good cooling environment when working. In the prior art, coolant needs to be added to reduce the temperature of the reamer to ensure stable processing and extend its service life. When processing larger holes, the coolant spraying range is limited, and it is impossible to ensure that the coolant is fully in contact with the reamer blade, which affects the cooling effect and causes unstable reamer processing. If it gets stuck, it is easy to cause the tool to be scrapped. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a high-precision straight-shank Morse taper reamer.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-precision straight-shank Morse taper reamer comprises a straight shank, a tool body and a positioning shaft, the tool body is in a conical shape, a tool groove and a chip groove are provided on the tool body, a blade is provided on the tool groove, the cross section of the blade is in a parallelogram shape, and an inclined surface adapted to the blade is provided at the bottom of the tool groove; a liquid inlet hole is provided on the side of the tool body close to the straight shank, a liquid outlet hole is provided on the tool body located in the chip groove, a liquid sprinkling hole is provided on the positioning shaft, and the liquid inlet hole is communicated with the liquid outlet hole and the liquid sprinkling hole respectively.

[0006] Preferably, the straight handle, the knife body and the positioning shaft are coaxially arranged and integrally formed.

[0007] Preferably, the tool grooves and chip grooves are provided in multiple groups and are evenly arranged on the conical surface of the tool body.

[0008] Preferably, the blade is detachably connected to the blade body via screws.

[0009] Preferably, expansion grooves are provided on the upper surface of the blade and the side curved surface of the blade body.

[0010] Preferably, the spray holes are provided in multiple groups and are evenly arranged on the side curved surface of the positioning shaft.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, the utility model has a liquid inlet hole, a liquid outlet hole and a liquid sprinkling hole on the cutter body. With the help of the rotation of the reamer, the coolant is evenly and reliably swung to the contact point between the blade and the workpiece to cool down the workpiece, avoid the reamer from locking, improve the processing reliability of the reamer, and ensure the processing accuracy of the reaming hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the three-dimensional structure of a high-precision straight-shank Morse taper reamer proposed by the utility model from a first-view perspective;

[0014] Figure 2 A schematic diagram of the three-dimensional structure from a second perspective of a high-precision straight-shank Morse taper reamer proposed by the utility model;

[0015] Figure 3 The utility model is a schematic diagram of the right side structure of a high-precision straight-shank Morse taper reamer.

[0016] In the figure: 1. straight handle; 2. tool body; 3. blade; 4. expansion groove; 5. liquid outlet; 6. positioning shaft; 7. liquid sprinkling hole; 8. tool groove; 9. chip removal groove; 10. liquid inlet hole. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-3 A high-precision straight-shank Morse taper reamer comprises a straight shank 1, a cutter body 2 and a positioning shaft 6. The straight shank 1, the cutter body 2 and the positioning shaft 6 are coaxially arranged and integrally formed to improve the overall strength. The cutter body 2 is conical in shape. A cutter groove 8 and a chip groove 9 are provided on the cutter body 2. The cutter groove 8 and the chip groove 9 are provided in multiple groups and are evenly and alternately arranged on the conical surface of the cutter body 2. A blade 3 is provided on the cutter groove 8. The blade 3 and the cutter body 2 are detachably connected by screws, which is convenient for replacing the blade 3 and improving the service life of the reamer. The cross section of the blade 3 is in the shape of a parallelogram. The bottom of the cutter groove 8 is provided with an inclined surface adapted to the blade 3 to ensure that the blade 3 is stably and reliably installed and is sufficient to bear a large impact force. An expansion groove 4 is provided on the upper surface of the blade 3 and the side curved surface of the cutter body 2. The expansion groove 4 prevents the blade 3 from being deformed too much by heat, causing jamming, affecting the reaming process, and improving the processing reliability and stability.

[0019] A liquid inlet hole 10 is provided on one side of the cutter body 2 close to the straight handle 1, a liquid outlet hole 5 is provided in the cutter body 2 located in the chip groove 9, a liquid sprinkling hole 7 is provided on the positioning shaft 6, the liquid inlet hole 10 is communicated with the liquid outlet hole 5 and the liquid sprinkling hole 7 respectively, a plurality of liquid sprinkling holes 7 are provided and are evenly arranged on the side curved surface of the positioning shaft 6 to facilitate even spraying of coolant.

[0020] Working principle:

[0021] The straight handle 1 is installed on the machine shaft, the shaft controls the movement of the straight handle 1, the positioning shaft 6 is aligned with the hole to be processed, the reamer is rotated and pressed down, and at the same time, the coolant is sprayed on the cutter body 2 of the reamer. The coolant enters the liquid inlet hole 10, is sprayed through the liquid outlet hole 5 and the liquid spray hole 7, and is sprayed on the inner wall of the hole to be processed, thereby improving the metal cutting stability and ensuring the reliability of the reaming process. The coolant is fully in contact with the blade 3, ensuring stable processing and effectively improving the processing accuracy.

[0022] 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. A high-precision straight-shank Morse taper reamer, comprising a straight shank (1), a cutter body (2) and a positioning shaft (6), characterized in that: The cutter body (2) is in a conical shape, and is provided with a cutter groove (8) and a chip removal groove (9). A blade (3) is provided on the cutter groove (8), and the cross section of the blade (3) is in a parallelogram shape. The bottom of the cutter groove (8) is provided with an inclined surface adapted to the blade (3); The cutter body (2) is provided with a liquid inlet hole (10) on one side close to the straight handle (1), the cutter body (2) is provided with a liquid outlet hole (5) in the chip removal groove (9), the positioning shaft (6) is provided with a liquid dripping hole (7), and the liquid inlet hole (10) is respectively in communication with the liquid outlet hole (5) and the liquid dripping hole (7).

2. A high-precision straight-shank Morse taper reamer according to claim 1, characterized in that: The straight handle (1), the knife body (2) and the positioning shaft (6) are coaxially arranged and integrally formed.

3. The high-precision straight-shank Morse taper reamer according to claim 1, characterized in that: The tool grooves (8) and chip removal grooves (9) are provided in multiple groups and are evenly arranged on the conical surface of the tool body (2).

4. The high-precision straight-shank Morse taper reamer according to claim 1, characterized in that: The blade (3) and the blade body (2) are detachably connected via screws.

5. The high-precision straight-shank Morse taper reamer according to claim 1, characterized in that: An expansion groove (4) is provided on the upper surface of the blade (3) and the side curved surface of the blade body (2).

6. The high-precision straight-shank Morse taper reamer according to claim 1, characterized in that: The spray holes (7) are provided in multiple groups and are evenly arranged on the side curved surface of the positioning shaft (6).

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