Power head center water outlet structure

Abstract

The utility model discloses a power head center water outlet structure, which relates to the technical field of power heads and comprises a power head, a spring chuck is rotatably connected in the power head, and a water passing gap is reserved between the power head and the spring chuck. A water injection waterway is arranged in the power head and sequentially communicated with the water guide base, the water guide connector, the flow guide base and the water passing gap. The spring chuck clamps the cutter, and a water outlet channel is formed in the cutter and connected with the water passing gap. During working, an external pipeline is connected with the water inlet connector to inject cooling liquid, the cooling liquid passes through the water inlet channel, the first water guide channel, the water guide pipe, the second water guide channel, the annular water guide channel, the water guide hole and the annular confluence cavity and finally flows into the water passing gap and the water outlet channel, and a cutting area is directly cooled from the interior of the cutter. According to the structure, cooling liquid can accurately reach the cutting part of the cutter, the cutter cooling effect is greatly improved through an internal cooling mode, the service life of the cutter is effectively prolonged, and the deep hole machining quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of power head technology, specifically a power head center water outlet structure. Background Technology

[0002] Deep hole drilling is a common and critical machining process. However, during deep hole drilling, the cutting tools face severe working conditions, among which tool overheating is particularly prominent. Due to the intense friction between the tool and the workpiece during deep hole drilling, and the relatively enclosed cutting zone, the heat generated by the tool is difficult to dissipate quickly, causing the tool temperature to rise sharply.

[0003] To reduce tool temperature, the common practice is to spray coolant externally onto the tool. While this method can cool the tool to some extent, its effectiveness is less than ideal for deep hole machining. Specifically, the externally sprayed coolant cannot penetrate deep into the hole and cannot directly act on the contact area between the tool and the workpiece, resulting in poor cooling. Therefore, we have improved the structure of the power head and proposed a water outlet structure that can supply coolant to the center of the tool through the power head. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power head center water outlet structure, which solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power head center water outlet structure, comprising:

[0006] The power head has a spring collet internally connected to it, and a water passage gap is reserved between the power head and the spring collet.

[0007] The power head has an internal water injection channel, and a water guide seat connected to the water injection channel is installed on the upper part of the power head. A water guide connector is installed on the end of the water guide seat away from the power head.

[0008] A guide seat is installed at the bottom of the power head, and the water injection channel is connected in sequence to the guide seat, the guide connector, the water channel reserved inside the guide seat, and the water passage gap.

[0009] The driven end of the spring collet is connected and fixed to the driving end of the power head. A cutting tool is clamped and fixed inside the spring collet, and a water outlet channel communicating with the water passage is opened through the inside of the cutting tool.

[0010] Furthermore, the water injection circuit includes a water inlet connector installed on the top of the power head and a water inlet channel opened on the inside of the top of the power head and connected to the water inlet connector.

[0011] Furthermore, the interior of the water guide seat is provided with a first water guide channel, which is connected to the water inlet channel.

[0012] Furthermore, the end of the water guide connector is connected to a water guide pipe, and a second water guide channel is opened inside the water guide connector. The water guide pipe is inserted into the first water guide channel and the two are connected. The water guide pipe is connected to the second water guide channel.

[0013] Furthermore, the guide seat has an annular water guiding channel and several water guiding holes inside, and an annular confluence cavity is formed on the inner surface of the guide seat. The annular water guiding channel is connected to the second water guiding channel, and the annular water guiding channel is connected to the annular confluence cavity through several water guiding holes.

[0014] Furthermore, the annular manifold is connected to the water passage gap.

[0015] This invention provides a center-outlet water structure for a power head. Compared with the prior art, it has the following advantages:

[0016] The central water outlet structure of this power head, with its designed water channels, precisely delivers coolant directly to the pre-drilled water outlet channels in the cutting tool, achieving direct cooling of the cutting area from within the tool. Compared to traditional external spraying of coolant, this internal cooling method significantly shortens the distance between the coolant and the cutting area of ​​the tool, reducing heat loss and resistance during coolant delivery. This allows the coolant to more quickly and effectively remove the large amount of heat generated by the tool during deep hole drilling, thus significantly improving tool cooling performance, effectively extending tool life, and enhancing the quality and efficiency of deep hole machining. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the power head structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the water guide connector in this utility model;

[0020] Figure 4 This is a schematic diagram of the flow guide seat in this utility model;

[0021] Figure 5 This is a half-section and water channel diagram of the assembled version of this utility model.

[0022] Figure 6 This is a schematic diagram of the spring collet slot in this utility model.

[0023] In the diagram: 1. Power head; 11. Water inlet connector; 12. Water inlet channel; 2. Water passage gap; 3. Spring collet; 4. Cutting tool; 41. Water outlet channel; 5. Water guide seat; 51. First water guide channel; 6. Water guide connector; 61. Water guide pipe; 62. Second water guide channel; 7. Flow guide seat; 71. Annular water guide channel; 72. Annular confluence cavity; 73. Water guide hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a power head center water outlet structure, including a power head 1, with a spring clamp 3 rotatably connected inside the power head 1. The specific structure and principle of the power head 1 and the spring clamp 3 are existing known technologies and will not be described in detail here. A water passage 2 is reserved between the power head 1 and the spring clamp 3. A water injection channel is set inside the power head 1, and a water guide seat 5 connected to the water injection channel is installed on the upper part of the power head 1. A water guide connector 6 is installed at the end of the water guide seat 5 away from the power head 1, and a flow guide seat 7 is installed at the bottom of the power head 1. The water injection channel is sequentially connected to the water channel reserved inside the water guide seat 5, the water guide connector 6, the flow guide seat 7, and the water passage 2.

[0026] The driven end of the spring collet 3 is connected and fixed to the driving end of the power head 1. The tool 4 is clamped and fixed inside the spring collet 3. A water outlet channel 41 is opened through the inside of the tool 4. The water outlet channel 41 is set along the axis of the tool 4 and is connected to the water passage gap 2. That is to say, when the power head 1 is in motion, it can drive the spring collet 3 and the tool 4 to rotate synchronously, thereby processing the workpiece. When the guide seat 7 is installed on the power head 1, the inner surface of the guide seat 7 squeezes the spring collet 3, causing the clamping end of the spring collet 3 to contract and clamp and fix the tool 4.

[0027] The water supply circuit includes a water inlet connector 11 installed on the top of the power head 1 and a water inlet channel 12 opened on the inner side of the top of the power head 1. The water inlet connector 11 and the water inlet channel 12 are connected.

[0028] The interior of the water guide seat 5 has a first water guide channel 51, which is connected to the water inlet channel 12.

[0029] The end of the water guide connector 6 is connected to the water guide pipe 61, and a second water guide channel 62 is opened inside the water guide connector 6. The water guide pipe 61 is inserted into the first water guide channel 51 and the two are connected. The water guide pipe 61 is connected to the second water guide channel 62.

[0030] The interior of the guide seat 7 is provided with an annular water guiding channel 71 and several water guiding holes 73, and the inner surface of the guide seat 7 is provided with an annular confluence cavity 72. The annular water guiding channel 71 is connected to the second water guiding channel 62, and the annular water guiding channel 71 is connected to the annular confluence cavity 72 through several water guiding holes 73. The annular confluence cavity 72 is connected to the water passage gap 2.

[0031] When the structure is in operation, the external pipeline is connected and fixed to the water inlet connector 11, and coolant is injected into the water inlet connector 11. The coolant then enters the water inlet channel 12 and is injected into the interior of the first water guide channel 51 through the water inlet channel 12. The first water guide channel 51 injects the coolant into the water guide pipe 61, and then into the interior of the second water guide channel 62. Next, it is injected into the interior of the annular water guide channel 71. The annular water guide channel 71 injects the coolant into the annular confluence cavity 72 through several water guide holes 73, and then flows from the annular confluence cavity 72 toward the interior of the water passage gap 2, and finally enters the water outlet channel 41. As the drill 4 drills deeper, the injected coolant is discharged from the outlet of the water outlet channel 41, which can cool the deep hole and the drill 4, and greatly improve the cooling effect of the drill 4 when drilling deep holes.

Claims

1. A power head central water outlet structure, characterized in that, The utility model relates to a power head (1) is internally rotatably connected with spring chuck (3), and the water gap (2) is reserved between power head (1) and spring chuck (3). The power head (1) is internally provided with a water injection channel, and the power head (1) is provided at the upper portion with a water guide base (5) in communication with the water injection channel, and the water guide base (5) is provided at the end away from the power head (1) with a water guide connector (6). The power head (1) is provided at the bottom with a water guide base (7), and the water injection channel is in communication with the water guide base (5), the water guide connector (6), the water channel in the water guide base (7) and the water gap (2) in sequence. The driven end of the spring chuck (3) is connected and fixed with the driving end of the power head (1), the spring chuck (3) is internally clamped and fixed with a cutter (4), and the cutter (4) is internally provided with a water outlet channel (41) in communication with the water gap (2). The water injection channel comprises a water inlet connector (11) mounted at the top of the power head (1) and a water inlet channel (12) provided at the inner side of the top of the power head (1) and in communication with the water inlet connector (11).

2. The center outlet structure of a power head according to claim 1, wherein The water guide base (5) is internally provided with a first water guide channel (51), and the first water guide channel (51) is in communication with the water inlet channel (12).

3. The center outlet structure of a power head according to claim 1, wherein The water guide connector (6) is connected at the end with a water guide pipe (61), the water guide connector (6) is internally provided with a second water guide channel (62), the water guide pipe (61) is inserted into the first water guide channel (51) and in communication with the second water guide channel (62), and the water guide pipe (61) is in communication with the second water guide channel (62).

4. The center outlet structure of a power head according to claim 1, wherein The water guide base (7) is internally provided with an annular water guide channel (71) and a plurality of water guide holes (73), and the inner surface of the water guide base (7) is provided with an annular converging cavity (72), the annular water guide channel (71) is in communication with the second water guide channel (62), and the annular water guide channel (71) is in communication with the annular converging cavity (72) through the plurality of water guide holes (73).

5. The center outlet structure of a power head according to claim 1, wherein The annular converging cavity (72) is in communication with the water gap (2).

6. The center outlet structure of a power head according to claim 5, wherein ​

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