A multi-station cutter head assembly

Abstract

The utility model discloses a kind of multi-station cutter head assemblies, belong to cutter head assembly technical field, including cutter head, multiple clamping arms are arranged on the outer edge of cutter head, blade is fixed on clamping arm, blade is independent, simultaneously usable cutter, different types, different parameters of blade can be correspondingly installed in each clamping arm, realize the collaborative work of multiple cutters, without frequent shutdown replacement entire cutter head, assembly hole is opened on cutter head, assembly hole is used to connect brake device, recess is opened in the center of cutter head, main cooling channel is arranged in cutter head recess, connecting pipe is extended from main cooling channel to each clamping arm around, shunt passage is arranged below each blade, one end of shunt passage is sealed butt joint by sealing ring with connecting pipe, another end of shunt passage extends to blade bottom, and an injection port is arranged at outlet, injection port is directly opposite blade, to spray coolant to cutting area, main cooling channel 7 inlet is connected with machine tool coolant system by swivel joint.

Description

Technical Field

[0001] This utility model relates to the technical field of milling cutter disc assemblies, and more specifically, to a multi-station milling cutter disc assembly. Background Technology

[0002] In the field of machining, multi-station milling cutter head assemblies have significantly improved machining flexibility and tool changing efficiency due to the advantages of on-demand cutter head replacement and convenient cutter head disassembly. They can quickly adapt to different working conditions such as planar milling and contour milling, and are widely used in high-precision machining scenarios such as automotive parts and mold manufacturing.

[0003] However, during high-speed cutting, the intense friction between the cutting head and the workpiece generates a large amount of heat, causing the cutting head temperature to rise sharply. Current cooling methods are clearly insufficient. Traditional pouring cooling is limited by the range and pressure of the cutting fluid spray, making it difficult to accurately cover the cutting area of ​​the high-speed rotating cutting head, and some heat still accumulates on the cutting head surface. Some integrated air-cooling structures have poor airflow efficiency due to unreasonable air duct design, which cannot quickly remove heat. Excessive temperature not only accelerates the wear of the cutting head and shortens its service life, but also affects the machining accuracy of the workpiece, resulting in excessive surface roughness, which cannot meet the requirements of high-precision machining. There is an urgent need to optimize the cooling structure design to improve the cooling effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-station milling cutter head assembly, which solves the problems mentioned in the background art by installing a coolant spraying device inside the cutter head to directly spray coolant onto the cutting tool.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the cutter head is circular, and multiple clamping arms are provided on the outer edge of the cutter head. The blades are fixed on the clamping arms. The cutter head is also provided with assembly holes for connecting the braking device. The cutter head has a groove in the center, and a main cooling channel is set in the groove. Connecting pipes extend from the main cooling channel to each of the surrounding clamping arms. A diversion channel is set inside the cutter head under each blade. One end of the diversion channel is sealed to the connecting pipe by a sealing ring to ensure that the coolant does not leak. The other end of the diversion channel extends to the bottom of the blade and has a nozzle at the outlet. The nozzle is directly facing the blade so that the coolant can be accurately sprayed onto the cutting area.

[0006] The main cooling channel inlet is connected to the machine tool coolant system via a rotary joint.

[0007] In a preferred embodiment, the cutter head is circular, the clamping arm and the cutter head are integral, the clamping arm has a fixing hole one and a fixing hole two, the blade is fixed on the clamping arm, the bottom of the blade has a fixing hole three, the fixing holes one, two and three are aligned, and the screw passes through the fixing holes one, two and three to fix the blade on the clamping arm.

[0008] In a preferred embodiment, the blades are independent and can be used simultaneously. Each clamping arm can be fitted with blades of different types and parameters, enabling multiple blades to work together and complete multiple feature machining in one pass without frequent machine stops to replace the entire cutter head.

[0009] In a preferred embodiment, the connecting pipe is a branch line that branches off from the main pipe and bends in an L-shape to lead to each clamping arm.

[0010] The technical effects and advantages of this utility model are as follows: the blades on the cutter head can be replaced, enabling multiple tools to work together and complete multiple feature machining in one pass, without the need for frequent machine stops to replace the entire cutter head. A coolant spraying device is installed inside the cutter head to spray coolant directly onto the blades, improving cooling efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the component disassembly structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the component disassembly structure of this utility model.

[0014] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0015] Figure 5 This is a schematic diagram of the rotary joint structure of this utility model.

[0016] The attached diagram is labeled as follows: 1. Cutter head; 2. Assembly hole; 3. Nozzle; 4. Screw; 5. Cutter arm; 6. Blade; 7. Main cooling channel; 8. Connecting pipe; 9. Fixing hole one; 10. Fixing hole two; 11. Fixing hole three; 12. Flow distribution channel; 13. Rotary joint. Detailed Implementation

[0017] 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.

[0018] As attached Figure 1 With appendix Figure 4 The multi-station milling cutter head assembly shown includes a cutter head 1, which is circular. Multiple clamping arms 5 are arranged on the outer edge of the cutter head 1. The clamping arms 5 and the cutter head 1 are an integral unit. The clamping arms 5 are provided with fixing holes 1-9 and 2-10. The cutting blades 6 are fixed on the clamping arms 5. The bottom of the cutting blades 6 is provided with fixing holes 3-11. The fixing holes 1-9, 2-10, and 3-11 are aligned. The screws 4 are used to fix the cutting blades 6 to the clamping arms 5 through the fixing holes 1-9, 2-10, and 3-11. The cutting blades 6 are independent and can be used simultaneously. Each clamping arm 5 can be equipped with cutting blades 6 of different types and parameters, realizing the collaborative work of multiple cutting tools. Multiple features can be processed in one pass without frequent machine stops to replace the entire cutter head 1. The cutter head 1 is also provided with mounting holes 2, which are used to connect a braking device to enable the cutter head 1 to rotate quickly.

[0019] In order to enable the blade 6 to cool down quickly when the cutter head 1 is working, a groove is made in the center of the cutter head 1. A main cooling channel 7 is set in the groove of the cutter head 1. The main cooling channel 7 is a cylindrical pipe extending outward from the center. The bottom of the main cooling channel 7 is integral with the cutter head 1. Connecting pipes 8 extend from the main cooling channel 7 to each clamping arm 5 around it. These connecting pipes 8 are branches that branch off from the main pipe and bend in an L shape to each clamping arm 5.

[0020] Each blade 6 has a flow channel 12 inside the cutter head 1. One end of the flow channel 12 is sealed to the connecting pipe 8 by a sealing ring to ensure that the coolant does not leak. The other end of the flow channel 12 extends to the bottom of the blade 6 and has a nozzle 3 at the outlet. The nozzle 3 is directly facing the blade 6 so that the coolant can be accurately sprayed onto the cutting area.

[0021] The inlet of the main cooling channel 7 is connected to the machine tool coolant system through a rotary joint 13, and a sealing ring is provided between the main cooling channel 7 and the rotary joint 13 to ensure that the coolant can continuously and stably flow into the main cooling channel 7 and the branch channel 12 inside the cutter head 1 without leakage when the cutter head 1 rotates.

[0022] When it is necessary to cut an object, replace the corresponding blade 6 according to the cutting requirements, fix the blade 6 on the clamping arm 5, then fix the cutter head 1 on the braking device through the mounting hole 2, then connect the inlet of the main cooling channel 7 to the machine tool coolant system through the rotary joint 13, and finally start the braking device. When the cutter head 1 cuts the object, the coolant flows from the main cooling channel 7 to the branch channel 12 through the connecting pipe 8, and then sprays the coolant directly onto the blade 6 through the nozzle 3 to achieve the cooling effect.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-station milling cutter head assembly, comprising a cutter head (1), characterized in that: The cutter head (1) is circular. Multiple clamping arms (5) are provided on the outer edge of the cutter head (1). The blade (6) is fixed on the clamping arms (5). The cutter head (1) is also provided with an assembly hole (2). The assembly hole (2) is used to connect the braking device. The cutter head (1) has a groove in the center and a main cooling channel (7) is provided in the groove. A connecting pipe (8) extends from the main cooling channel (7) to each clamping arm (5) around it. A diversion channel (12) is provided inside the cutter head (1) below each blade (6). One end of the diversion channel (12) is sealed to the connecting pipe (8) by a sealing ring to ensure that the coolant does not leak. The other end of the diversion channel (12) extends to the bottom of the blade (6) and a nozzle (3) is provided at the outlet. The nozzle (3) is directly facing the blade (6) so that the coolant can be accurately sprayed onto the cutting area. The inlet of the main cooling channel (7) is connected to the machine tool coolant system via a rotary joint (13).

2. The multi-station milling cutter head assembly according to claim 1, characterized in that: The cutter head (1) is circular. The clamping arm (5) and the cutter head (1) are a whole. The clamping arm (5) has a fixing hole 1 (9) and a fixing hole 2 (10). The blade (6) is fixed on the clamping arm (5). The bottom of the blade (6) has a fixing hole 3 (11). The fixing holes 1 (9), 2 (10) and 3 (11) are aligned. The screw (4) passes through the fixing holes 1 (9), 2 (10) and 3 (11) to fix the blade (6) on the clamping arm (5).

3. A multi-station milling cutter head assembly according to claim 2, characterized in that: The blade (6) is an independent tool that can be used simultaneously. Each clamping arm (5) can be fitted with blades (6) of different types and parameters to achieve multi-tool collaborative work, complete multiple feature processing in one pass, and eliminate the need for frequent machine stops to replace the entire cutter head (1).

4. A multi-station milling cutter head assembly according to claim 3, characterized in that: The connecting pipe (8) is a branch line that branches off from the main pipe and bends in an L-shape to each clamping arm (5).

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