A power head device for a milling and turning composite CNC machine tool

Abstract

This utility model provides a power head device for a milling-turning composite CNC machine tool, comprising: a power housing, a front cover on the surface of the power housing, a third sealing ring inside the front cover, a sealing device inside the power housing, a spindle inside the sealing device, a central water outlet inside the spindle, and a third oil seal fixedly installed on the surface of the spindle. This utility model provides a power head device for a milling-turning composite CNC machine tool. Through the central water outlet in conjunction with a circulating water circuit, a first water inlet, and a second water inlet, water flows into the interior of the power head. The water, under pressure, allows coolant to be directly transferred to the cutting tool tip through the spindle, increasing cutting speed and thus improving production efficiency. Simultaneously, the water effectively cools the cutting tool tip internally, improving tool durability and reducing the risk of tool wear and breakage.

Description

Technical Field

[0001] This utility model relates to the field of turning and milling, and in particular to a power head device for a turning and milling composite CNC machine tool. Background Technology

[0002] A milling-turning composite CNC machine tool is an advanced machining equipment that combines turning and milling. Through a highly integrated CNC system, it enables complex parts to be clamped in one operation and processed in multiple steps.

[0003] The power head of a machine tool, also known as a power tool holder, refers to a tool holder that is mounted on a power tool turret and can be driven by a servo motor. This type of tool holder is generally used on milling and turning machines, and a few can also be used on machining centers with power tool turrets.

[0004] Existing power heads spray cutting fluid and coolant on the outside of the parts. The sprayed liquid cannot directly enter the contact area between the tool and the workpiece, resulting in the high-temperature area not being effectively cooled. This may cause rapid tool wear, workpiece thermal deformation, and even affect machining accuracy.

[0005] Therefore, it is necessary to provide a power head device for milling and turning composite CNC machine tools to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a power head device for milling and turning composite CNC machine tools, which solves the problem that current power heads spray cutting fluid and coolant on the outside of parts, resulting in poor heat dissipation.

[0007] To solve the above-mentioned technical problems, this utility model provides a power head device for a turning-milling composite CNC machine tool, comprising:

[0008] A power housing, the surface of which is provided with a front cover, and the interior of which is provided with a third sealing ring;

[0009] The power housing is equipped with a sealing device inside, and a main shaft is installed inside the sealing device. A central water outlet is opened inside the main shaft. A third oil seal is fixedly installed on the surface of the main shaft. A needle roller bearing is installed on the surface of the main shaft. A first retaining ring is installed on the surface of the needle roller bearing. A second retaining ring is installed on the surface of the needle roller bearing.

[0010] The power housing has a first water inlet and a second water inlet inside.

[0011] The power housing has an internal circulating water channel;

[0012] A first bearing is fixedly installed inside the power housing, and a second bearing is fixedly installed inside the power housing.

[0013] Preferably, the sealing device includes an oil seal fixing block, a first sealing ring fixedly installed inside the oil seal fixing block, a second sealing ring fixedly installed inside the oil seal fixing block, a first oil seal disposed inside the oil seal fixing block, a fourth oil seal disposed inside the oil seal fixing block, and the sealing device further includes an oil seal rotating block, a fourth sealing ring fixedly installed inside the oil seal rotating block, and a fifth sealing ring fixedly installed inside the oil seal rotating block.

[0014] Preferably, the spindle surface is threaded with a nut, the spindle surface is provided with a first semi-circular cut, and the spindle surface is provided with a second semi-circular cut.

[0015] Preferably, the spindle has a pin inside.

[0016] Preferably, a seventh sealing ring is fixedly installed inside the first water inlet, and an eighth sealing ring is fixedly installed inside the second water inlet.

[0017] Preferably, the power housing is internally threaded with a first screw and the power housing is internally threaded with a second screw.

[0018] Preferably, the internal fixing device of the power housing has a first fixing block, a second fixing block, a third fixing block, and a fourth fixing block.

[0019] Compared with related technologies, the power head device for a turning-milling composite CNC machine tool provided by this utility model has the following beneficial effects:

[0020] This utility model provides a power head device for a milling and turning composite CNC machine tool. Through a central water outlet in conjunction with a circulating water circuit, a first water inlet, and a second water inlet, water flows into the interior of the power head. The water can be pressurized to allow coolant to be directly transferred to the cutting tool tip through the spindle, thereby increasing the cutting speed and improving production efficiency. At the same time, the water effectively cools the cutting tool tip internally, improving tool durability and reducing the risk of tool wear and breakage. Attached Figure Description

[0021] Figure 1 A schematic diagram of a preferred embodiment of a power head device for a milling and turning composite CNC machine tool provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows a front view of the power head device.

[0023] Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the power head device shown;

[0024] Figure 4 for Figure 1 The diagram shows the circulating water circuit structure of the power head device.

[0025] Numbered in the diagram: 1. Power housing, 2. Main shaft, 3. First sealing ring, 4. Oil seal fixing block, 5. Second sealing ring, 6. First oil seal, 7. First bearing, 8. First fixing block, 9. Nut, 10. First retaining ring, 11. Second oil seal, 12. First semi-circular cutter, 13. Pin, 14. Center outlet, 15. Third oil seal, 16. Front cover, 17. Second bearing, 18. Third sealing ring, 19. Fourth oil seal, 20. 21. Four sealing rings, oil seal rotating block, 22. Fifth sealing ring, 23. Second fixing block, 24. Sixth sealing ring, 25. Needle roller bearing, 26. Second retaining ring, 27. Second semi-circular cutter, 28. Seventh sealing ring, 29. Third fixing block, 30. Fourth fixing block, 31. Eighth sealing ring, 32. First screw, 33. Second screw, 34. Circulating water channel, 35. First water inlet, 36. Second water inlet, 37. Sealing device. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a power head device for a milling and turning composite CNC machine tool provided by this utility model; Figure 2 for Figure 1 The diagram shows a front view of the power head device. Figure 2 for Figure 1 A cross-sectional structural schematic diagram of the power head device shown; Figure 2 for Figure 1 The diagram shows a schematic of the circulating water circuit structure of the power head device. A power head device for a milling and turning composite CNC machine tool includes:

[0028] A power housing 1, the surface of which is provided with a front cover 12, and the interior of the front cover 12 is provided with a third sealing ring 18;

[0029] The power housing 1 is provided with a sealing device 37 inside, and a main shaft 2 is provided inside the sealing device. A central water outlet 14 is opened inside the main shaft 2. A third oil seal 15 is fixedly installed on the surface of the main shaft 2. A needle roller bearing 25 is provided on the surface of the main shaft 2. A first retaining ring 10 is provided on the surface of the needle roller bearing 25. A second retaining ring 26 is provided on the surface of the needle roller bearing 25.

[0030] The power housing 1 has a first water inlet 35 inside and a second water inlet 36 inside;

[0031] The power housing 1 has a circulating water channel 34 inside;

[0032] A first bearing 7 is fixedly installed inside the power housing 1, and a second bearing 17 is fixedly installed inside the power housing 1.

[0033] The noise from the center outlet 14 of the main shaft 2 is low because the movement of the liquid is very stable when it flows through the central axis, which reduces friction and vibration and makes the sound more balanced. Therefore, the mechanical equipment vibrates less during transmission and can achieve better mechanical effect.

[0034] Since the central water outlet 14 can effectively cool the tool and flush away broken chips and debris during machining, it reduces the frequency of tool replacement due to clogging or overheating.

[0035] In deep hole machining, the central outlet 14 spindle 2 can achieve the requirement of one-time through drilling without stepping, which solves the accuracy deviation or misalignment problem caused by drilling at both ends and improves the machining accuracy.

[0036] In areas requiring high hygiene standards, such as medical equipment and food processing equipment, the central outlet 14 method can meet the hygiene standards for liquid media.

[0037] The sealing device 37 includes an oil seal fixing block 4, inside which a first sealing ring 3 is fixedly installed, inside which a second sealing ring 5 is fixedly installed, inside which a first oil seal 6 is provided, inside which a fourth oil seal 19 is provided, and the sealing device 37 also includes an oil seal rotating block 21, inside which a fourth sealing ring 20 is fixedly installed, and inside which a fifth sealing ring 22 is fixedly installed.

[0038] Spindle 2 is used to hold the cutting tools. It rotates and has a water outlet in the middle. The water enters through the oil seal rotating block.

[0039] The oil seal fixing block 4 is used to fix the oil seal. It has three grooves on its outer surface. Two of them are for installing sealing rings, namely the first sealing ring 3 and the second sealing ring 5. The middle groove is for circulating water and has four water inlet holes. The inner hole has two steps, inner and outer, for installing oil seals, namely the first oil seal 6 and the fourth oil seal 19, to prevent water leakage.

[0040] The first bearing 7 and the second bearing 17 are fixed on the outer circle of the power head housing and on the inner circle of the main shaft 2, serving to fix them during high-speed rotation.

[0041] The first retaining ring 10 secures the inner circle of the needle roller bearing 25, while the second retaining ring 26 secures the outer circle of the needle roller bearing 25 to prevent the bearing from moving.

[0042] When the equipment rotates at high speed, nut 9 serves to fix the spindle 2 and the bearing.

[0043] When the main shaft 2 rotates at high speed, the second oil seal 11 prevents debris and water from entering from the rear, and the third oil seal 15 prevents debris and water from entering from the front.

[0044] When the equipment rotates at high speed, the first semicircular cutter 12 and the second semicircular cutter 28 serve a fixing function.

[0045] The oil seal rotating block 21 is fixed on the main shaft 2. The first oil seal 6 and the fourth oil seal 19 are installed on the outer circle of the oil seal fixing block 4. When the main shaft 2 rotates at high speed, it prevents water from leaking out. The inner circle of the oil seal fixing block 4 has two grooves for installing the fourth sealing ring 20 and the fifth sealing ring 22. When the main shaft 2 and the oil seal fixing block 4 are connected, it prevents leakage. The outer circle of the oil seal fixing block 4 has four water inlets. Water enters from the oil seal fixing block and then enters the main shaft 2 through the oil seal rotating block.

[0046] The surface of the spindle 2 is threaded with a nut 9, the surface of the spindle 2 is provided with a first semi-circular cut 12, and the surface of the spindle 2 is provided with a second semi-circular cut 28.

[0047] The spindle 2 has a pin 13 inside.

[0048] One end of the spindle 2 is connected to the turret via a coupling, which rotates the spindle 2 and the tool turret. It is fixed by a semi-circular cutter and a C-shaped cutter pin 13.

[0049] A seventh sealing ring 28 is fixedly installed inside the first water inlet 35, and an eighth sealing ring 31 is fixedly installed inside the second water inlet 36.

[0050] The power housing 1 is internally threaded with a first screw 32 and a second screw 33.

[0051] The first screw 32 and the second screw 33 are sealing screws for the power housing.

[0052] The internal fixing device of the power housing 1 has a first fixing block 8, a second fixing block 23, a third fixing block 29, and a fourth fixing block 30.

[0053] Multiple fixing blocks are used to install the power housing 1.

[0054] Compared with related technologies, the power head device for a turning-milling composite CNC machine tool provided by this utility model has the following beneficial effects:

[0055] This utility model provides a power head device for a milling and turning composite CNC machine tool. Through the central water outlet 14, in conjunction with the circulating water channel 34, the first water inlet 35, and the second water inlet 36, water flows into the interior of the power head. The water can be pressurized to allow coolant to be directly transferred to the tool tip through the spindle 2, thereby increasing the cutting speed and improving production efficiency. At the same time, the water effectively cools the tool tip internally, improving tool durability and reducing the risk of tool wear and breakage.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A power head device for a turning-milling combined numerical control machine tool, characterized by, include: A power housing, the surface of which is provided with a front cover, and the interior of which is provided with a third sealing ring; The power housing is equipped with a sealing device inside, and a main shaft is installed inside the sealing device. A central water outlet is opened inside the main shaft. A third oil seal is fixedly installed on the surface of the main shaft. A needle roller bearing is installed on the surface of the main shaft. A first retaining ring is installed on the surface of the needle roller bearing. A second retaining ring is installed on the surface of the needle roller bearing. The power housing has a first water inlet and a second water inlet inside. The power housing has an internal circulating water channel; A first bearing is fixedly installed inside the power housing, and a second bearing is fixedly installed inside the power housing.

2. The power head device for a milling-turning composite CNC machine tool according to claim 1, characterized in that, The sealing device includes an oil seal fixing block, inside which a first sealing ring is fixedly installed, inside which a second sealing ring is fixedly installed, inside which a first oil seal is provided, inside which a fourth oil seal is provided, and the sealing device also includes an oil seal rotating block, inside which a fourth sealing ring is fixedly installed, and inside which a fifth sealing ring is fixedly installed.

3. The power head device for a milling-turning composite CNC machine tool according to claim 1, characterized in that, The spindle surface is threaded with a nut, the spindle surface is provided with a first semi-circular cut, and the spindle surface is provided with a second semi-circular cut.

4. A power head device for a milling-turning composite CNC machine tool according to claim 3, characterized in that, The spindle has a pin inside.

5. A power head device for a milling-turning composite CNC machine tool according to claim 1, characterized in that, A seventh sealing ring is fixedly installed inside the first water inlet, and an eighth sealing ring is fixedly installed inside the second water inlet.

6. A power head device for a milling-turning composite CNC machine tool according to claim 1, characterized in that, The power housing is internally threaded with a first screw, and the power housing is internally threaded with a second screw.

7. A power head device for a milling-turning composite CNC machine tool according to claim 6, characterized in that, The internal fixing device of the power housing has a first fixing block, a second fixing block, a third fixing block, and a fourth fixing block.

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