High-speed cutting reamer

Abstract

The utility model belongs to the technical field of reamers, and particularly relates to a high-speed cutting reamer which comprises a heat conduction column, the surface of the heat conduction column is fixedly connected with a first hollow cutter bar, and the surface of the heat conduction column is fixedly connected with a second hollow cutter bar. Tool bits are fixedly connected to the left side of the heat conduction column and the left side of the first hollow tool bar, positioning grooves are formed in the right side of the first hollow tool bar and the left side of the second hollow tool bar, and cooling fins are arranged on the inner walls of the positioning grooves and the surface of the heat conduction column in an attached mode. According to the high-speed cutting reamer, heat of the reamer can be rapidly transferred into the cooling fins through the heat conduction column, meanwhile, when the reamer rotates at a high speed, high-speed airflow is blown out of the left side of the conical barrel through the fan blades, the heat in the cooling fins is blown away through the high-speed airflow, and therefore the generated heat can be rapidly dissipated when the reamer rotates at the high speed, and the service life of the reamer is prolonged. Therefore, the reamer is not prone to overheating in the using process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of reamer, specifically relates to a high -speed cutting reamer. BACKGROUND

[0002] In the machining process, reamer is used for the hole wall of the drilled hole finishing, to improve the size accuracy, shape accuracy and surface finish of the important tool of hole. With the continuous improvement of the processing efficiency requirement of modern manufacturing industry, high -speed cutting technology is widely applied. The existing high -speed cutting reamer is mainly combined by cutter head and cutter bar, for example, the high -speed reamer disclosed in the patent no. CN221134314U of China, however, due to the high -speed cutting tool and workpiece between the violent friction, and a large amount of heat, heat if not in time, will lead to the temperature of reamer cutting edge sharp rise, on the one hand, accelerate tool wear, shorten the service life of tool, on the other hand, the temperature is too high, the quality of workpiece processing surface may deteriorate, appear burn, deformation and other defects, seriously affect the machining accuracy and product quality. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a high -speed cutting reamer, solve the problem that the reamer is in high -speed cutting, because the heat can not be quickly removed, and lead to the tool wear speed accelerates, and makes the workpiece processing surface quality deteriorates.

[0004] The utility model adopts the technical scheme as follows:

[0005] A high -speed cutting reamer, including heat conduction column, the surface of heat conduction column is fixedly connected with first hollow cutter bar, the surface of heat conduction column is fixedly connected with second hollow cutter bar, the left side of heat conduction column and the left side of first hollow cutter bar are fixedly connected with cutter head, the right side of first hollow cutter bar and the left side of second hollow cutter bar are all set with positioning groove, the inner wall of positioning groove and the surface of heat conduction column are all set with radiating fin, the surface of radiating fin is set with fixed support, the right side of fixed support and the surface of second hollow cutter bar are all fixedly connected with air intake cover, the surface of air intake cover is set with air inlet, the left side of air intake cover is set with air outlet, the inner wall of air intake cover is fixedly connected with partition ring, the surface of second hollow cutter bar is fixedly connected with fan blade.

[0006] The utility model further sets up, the fixed support includes outer thread cylinder, conical cylinder, first rectangle hole, sliding block and nut, the right side of outer thread cylinder is fixedly connected with the left side of air inlet cover, the surface of outer thread cylinder and the surface of fin all are pasted with the inner wall of conical cylinder, first rectangle hole is set up on the surface of outer thread cylinder, the inner wall of conical cylinder is fixedly connected with the surface of sliding block, the surface of sliding block is pasted with the inner wall of first rectangle hole, the inner wall of nut is screw -threaded with the surface of outer thread cylinder, the left side of nut is pasted with the right side of conical cylinder.

[0007] The utility model further sets up, the fan blade is located in air inlet cover, the partition ring is located at the right side of fan blade, the air inlet hole is located at the right side of partition ring, the inner diameter of partition ring is greater than the diameter of second hollow cutter bar.

[0008] The utility model further sets up, the distance between air outlet and heat conduction column axis is less than the inner diameter of outer thread cylinder.

[0009] The utility model further sets up, the inside of heat conduction column and the upper and lower sides of second hollow cutter bar all are set up with through -hole, the upper and lower sides of outer thread cylinder are set up with second rectangle hole, the inner wall of outer thread cylinder is fixedly connected with first cylinder, the upper and lower sides of first cylinder inner wall all are set up with limit groove, the inner wall of through -hole is fixedly connected with second cylinder, the inner wall of second cylinder is fixedly connected with spring, the upper and lower sides of spring all are fixedly connected with limit block, the inner wall of second rectangle hole, the inner wall of limit groove and the right side of nut all are pasted with the surface of limit block.

[0010] The utility model further sets up, the inner wall of spring is fixedly connected with third cylinder, the inner wall of third cylinder is fixedly connected with stop rod.

[0011] The utility model discloses a kind of technical effects for being obtained:

[0012] The utility model discloses a kind of high-speed cutting reamer, which can quickly transfer the heat of the reamer to the heat sink through the heat conduction column. When the reamer rotates at high speed, the fan blade blows out high-speed airflow on the left side of the conical cylinder, which disperses the heat in the heat sink through high-speed airflow. Thus, the heat generated by the reamer during high-speed rotation can be quickly dissipated, preventing the reamer from overheating during use.

[0013] The utility model discloses a high -speed cutting reamer can make the taper cylinder and the fin contact or separate through the nut on the rotation fixed bolster, when the taper cylinder and the fin contact, through the taper cylinder, the fin is fixed on the heat conduction post, when the taper cylinder and the fin separate, the fin can directly separate with the heat conduction post, and then through the fixed bolster, the fin and the heat conduction post can be disassembled between, so that the user can replace the damaged fin, and simultaneously, after the taper cylinder and the fin contact, through the limiting block, the nut and the air intake cover can not reduce between, and then the taper cylinder and the nut are not easy to loosen between. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional schematic view of the utility model structure;

[0015] Figure 2 It is the plan view of the utility model structure;

[0016] Figure 3 It is Figure 2 the section view at A-A in it;

[0017] Figure 4 It is Figure 3 the enlarged view at B in it;

[0018] Figure 5 It is the plan view of the heat conduction post in the utility model;

[0019] Figure 6 It is the left view of the second hollow cutter bar in the utility model;

[0020] Figure 7 It is the plan view of the fixed bolster in the utility model;

[0021] Figure 8 It is Figure 7 the section view at C-C in it;

[0022] Figure 9 It is the front view of the air intake cover in the utility model;

[0023] Figure 10 It is the left view of the air intake cover in the utility model;

[0024] Figure 11 It is the right view of the first cylinder in the utility model;

[0025] Figure 12 It is the right view of the second cylinder in the utility model.

[0026] In the drawings, the component list represented by each mark is as follows:

[0027] 1. Heat-conducting column; 2. First hollow cutter bar; 3. Second hollow cutter bar; 4. Cutter head; 5. Positioning groove; 6. Heat sink; 7. Fixing bracket; 71. External threaded cylinder; 72. Conical cylinder; 73. First rectangular hole; 74. Slider; 75. Nut; 8. Air inlet cover; 9. Air inlet hole; 10. Air outlet hole; 11. Separator ring; 12. Fan blade; 13. Through hole; 14. Second rectangular hole; 15. First cylinder; 16. Limiting groove; 17. Second cylinder; 18. Spring; 19. Limiting block; 20. Third cylinder; 21. Stop bar. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 10 As shown, a high-speed cutting reamer includes a heat-conducting pillar 1, a first hollow tool shank 2 and a second hollow tool shank 3 fixedly connected to the surface of the heat-conducting pillar 1, and tool heads 4 fixedly connected to the left side of both the heat-conducting pillar 1 and the left side of the first hollow tool shank 2. Positioning grooves 5 are formed on the right side of the first hollow tool shank 2 and the left side of the second hollow tool shank 3. Heat sinks 6 are fitted into the inner wall of the positioning grooves 5 and the surface of the heat-conducting pillar 1, and fixing brackets 7 are fitted into the surface of the heat sinks 6. An air inlet shroud 8 is fixedly connected to the right side of the fixed bracket 7 and the surface of the second hollow cutter bar 3. An air inlet hole 9 is opened on the surface of the air inlet shroud 8, and an air outlet hole 10 is opened on the left side of the air inlet shroud 8. A partition ring 11 is fixedly connected to the inner wall of the air inlet shroud 8. A fan blade 12 is fixedly connected to the surface of the second hollow cutter bar 3. The fan blade 12 is located inside the air inlet shroud 8. The partition ring 11 is located to the right of the fan blade 12. The air inlet hole 9 is located to the right of the partition ring 11. The inner diameter of the partition ring 11 is larger than the diameter of the second hollow cutter bar 3.

[0031] The fixed support 7 comprises an outer threaded cylinder 71, a tapered cylinder 72, a first rectangular hole 73, a sliding block 74 and a nut 75, the right side of the outer threaded cylinder 71 is fixedly connected with the left side of the air inlet cover 8, the surface of the outer threaded cylinder 71 and the surface of the heat dissipation fin 6 are attached to the inner wall of the tapered cylinder 72, the first rectangular hole 73 is arranged on the surface of the outer threaded cylinder 71, the inner wall of the tapered cylinder 72 is fixedly connected with the surface of the sliding block 74, the surface of the sliding block 74 is attached to the inner wall of the first rectangular hole 73, the inner wall of the nut 75 is threadedly connected with the surface of the outer threaded cylinder 71, the left side of the nut 75 is attached to the right side of the tapered cylinder 72, and the distance between the air outlet hole 10 and the axis of the heat conduction column 1 is less than the inner diameter of the outer threaded cylinder 71.

[0032] It should be noted that the heat of the reamer can be quickly transferred to the heat dissipation fin 6 through the heat conduction column 1, the heat dissipation fin 6 is positioned by the positioning groove 5, when the reamer rotates, the fan blade 12 will suck the air outside the air inlet cover 8 into the air inlet cover 8 through the air inlet hole 9, and the air in the air inlet cover 8 is discharged through the air outlet hole 10, at this time, the left side of the tapered cylinder 72 will blow out high-speed airflow, and the heat in the heat dissipation fin 6 is blown away through the high-speed airflow.

[0033] Through the cooperation of the first rectangular hole 73 and the sliding block 74, the tapered cylinder 72 and the outer threaded cylinder 71 cannot be separated, when the distance between the nut 75 and the air inlet cover is the largest, the inner wall of the tapered cylinder 72 is in contact with the heat dissipation fin 6 through the nut 75, and the heat dissipation fin 6 is fixed on the heat conduction column 1 through the tapered cylinder 72, when the distance between the nut 75 and the air inlet cover is the smallest, the tapered cylinder 72 can be separated from the heat dissipation fin 6 by moving the tapered cylinder 72 to the right, and after the tapered cylinder 72 is separated from the heat dissipation fin 6, the heat dissipation fin 6 can be directly separated from the heat conduction column 1.

[0034] As shown in Figures 1 to 12 The inner part of the heat conduction column 1 and the upper and lower sides of the second hollow tool rod 3 are provided with through holes 13, the upper and lower sides of the outer threaded cylinder 71 are provided with second rectangular holes 14, the inner wall of the outer threaded cylinder 71 is fixedly connected with a first cylinder 15, the upper and lower sides of the inner wall of the first cylinder 15 are provided with limiting grooves 16, the inner wall of the through hole 13 is fixedly connected with a second cylinder 17, the inner wall of the second cylinder 17 is fixedly connected with a spring 18, the upper and lower sides of the spring 18 are fixedly connected with limiting blocks 19, and the inner wall of the second rectangular hole 14, the inner wall of the limiting groove 16 and the right side of the nut 75 are attached to the surface of the limiting block 19.

[0035] The inner wall of the spring 18 is fixedly connected with a third cylinder 20, and the inner wall of the third cylinder 20 is fixedly connected with a blocking rod 21.

[0036] When the distance between the nut 75 and the air inlet cover is maximum, the left side of the limiting block 19 can be in contact with the right side of the nut 75 through the spring 18, and the distance between the nut 75 and the air inlet cover 8 cannot be reduced through the limiting block 19, so that the tapered cylinder 72 and the nut 75 are not easy to loosen.

[0037] The working principle of the utility model is that: the heat of the reamer can be quickly transferred to the heat dissipation fin 6 through the heat conduction column 1, and when the reamer rotates at high speed, the fan blade 12 can suck the air outside the air inlet cover 8 into the air inlet cover 8 through the air inlet hole 9, and the air in the air inlet cover 8 is discharged through the air outlet hole 10, at this time, the left side of the tapered cylinder 72 blows out high-speed airflow, and the heat in the heat dissipation fin 6 is blown away through the high-speed airflow.

[0038] When the heat dissipation fin 6 needs to be replaced, the limiting block 19 is first pressed to separate the limiting block 19 from the nut 75, then the nut 75 is rotated to move the nut 75 to the left, and when the distance between the nut 75 and the air inlet cover reaches the minimum value, the tapered cylinder 72 is moved to the right to separate the tapered cylinder 72 from the heat dissipation fin 6, and when the tapered cylinder 72 is separated from the heat dissipation fin 6, the heat dissipation fin 6 can be directly separated from the heat conduction column 1.

[0039] When the heat dissipation fin 6 is fixed on the heat conduction column 1, the heat dissipation fin 6 is first inserted into the positioning groove 5, then the tapered cylinder 72 is moved to the left to make the inner wall of the tapered cylinder 72 in contact with the heat dissipation fin 6, and the nut 75 is rotated to make the distance between the nut 75 and the air inlet cover reach the maximum value, at this time, the tapered cylinder 72 cannot be moved through the nut 75, and the heat dissipation fin 6 is fixed on the heat conduction column 1 through the tapered cylinder 72.

[0040] At the same time, when the distance between the nut 75 and the air inlet cover is maximum, the left side of the limiting block 19 can be in contact with the right side of the nut 75 through the spring 18, and the distance between the nut 75 and the air inlet cover 8 cannot be reduced through the limiting block 19, so that the tapered cylinder 72 and the nut 75 are not easy to loosen.

[0041] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary technical personnel in the prior art, without departing from the principle of the utility model, a number of improvements and refinements can be made, which should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A high speed cutting reamer, characterized by: The utility model provides a heat conduction column (1), the surface fixed connection of heat conduction column (1) has first hollow cutter bar (2), the surface fixed connection of heat conduction column (1) has second hollow cutter bar (3), the left side of heat conduction column (1) and the left side of first hollow cutter bar (2) are all fixedly connected with tool bit (4), the right side of first hollow cutter bar (2) and the left side of second hollow cutter bar (3) are all seted up with positioning slot (5), the inner wall of positioning slot (5) and the surface of heat conduction column (1) are all set up with the surface of radiating fin (6) and fixed support (7) of paste, the right side of fixed support (7) and the surface of second hollow cutter bar (3) are all fixedly connected with air intake cover (8), the surface of air intake cover (8) is seted up with air inlet (9), the left side of air intake cover (8) is seted up with air outlet (10), the inner wall of air intake cover (8) is fixedly connected with the separation ring (11), the surface of second hollow cutter bar (3) is fixedly connected with fan blade (12).

2. A high speed cutting reamer according to claim 1, wherein: The fixed support (7) includes an outer threaded cylinder (71), a tapered cylinder (72), a first rectangular hole (73), a sliding block (74), and a nut (75). The right side of the outer threaded cylinder (71) is fixedly connected with the left side of the air intake cover (8). The surface of the outer threaded cylinder (71) and the surface of the radiating fin (6) are both in contact with the inner wall of the tapered cylinder (72). The first rectangular hole (73) is formed on the surface of the outer threaded cylinder (71). The inner wall of the tapered cylinder (72) is fixedly connected with the surface of the sliding block (74). The surface of the sliding block (74) is in contact with the inner wall of the first rectangular hole (73). The inner wall of the nut (75) is threadedly connected with the surface of the outer threaded cylinder (71). The left side of the nut (75) is in contact with the right side of the tapered cylinder (72).

3. A high speed cutting reamer according to claim 1, wherein: The fan blade (12) is located in the air intake cover (8). The separation ring (11) is located to the right of the fan blade (12). The air inlet (9) is located to the right of the separation ring (11). The inner diameter of the separation ring (11) is greater than the diameter of the second hollow cutter bar (3).

4. A high speed cutting reamer according to claim 2, wherein: The distance between the air outlet (10) and the axis of the heat conduction column (1) is less than the inner diameter of the outer threaded cylinder (71).

5. A high speed cutting reamer according to claim 2, wherein: The inner part of the heat conduction column (1) and the upper and lower sides of the second hollow cutter bar (3) are both provided with through holes (13). The upper and lower sides of the outer threaded cylinder (71) are both provided with second rectangular holes (14). The inner wall of the outer threaded cylinder (71) is fixedly connected with a first cylinder (15). The upper and lower sides of the inner wall of the first cylinder (15) are both provided with limiting grooves (16). The inner wall of the through hole (13) is fixedly connected with a second cylinder (17). The inner wall of the second cylinder (17) is fixedly connected with a spring (18). The upper and lower sides of the spring (18) are both fixedly connected with limiting blocks (19). The inner wall of the second rectangular hole (14), the inner wall of the limiting groove (16), and the right side of the nut (75) are all in contact with the surface of the limiting block (19).

6. A high speed cutting reamer according to claim 5, wherein: The inner wall of the spring (18) is fixedly connected with a third cylinder (20). The inner wall of the third cylinder (20) is fixedly connected with a blocking rod (21).

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