A three-axle reduction vehicle square power head

Abstract

The utility model discloses a three-axis reduction turning power head, including a power head housing, a cutter head shaft, a middle shaft, and a driving shaft. The driving shaft is on one side of the power head housing, and the cutter head shaft is on the other side of the power head housing. The middle shaft is located between the driving shaft and the cutter head shaft. The driving shaft provides power, and the cutter head shaft includes a turning cutter head. The beneficial effects of the utility model are: three-axis transmission, a motor directly connected to the driving shaft, turning function and drilling function, good vibration resistance, large torque output, high transmission accuracy, and can be used as a standardized module accessory for medium and large metal cutting machine tools, and applied to lathe technical transformation or CNC lathe to increase the turning function.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal cutting machine tools and relates to a three-axis reduction truck square power head. Background Art

[0002] By installing a turning power head on the CNC lathe and controlling the speed ratio between the spindle and the turning power head through the system, turning processing can be achieved.

[0003] CN 209050174 U A turning and milling compound power head comprises a power head housing, a driving motor and a cutter disc shaft. The driving motor is fixed to the rear end of the power head housing. The cutter disc shaft is rotatably arranged in the power head housing, one end of which is connected to the output shaft of the driving motor and the other end extends out of the power head housing and is equipped with a flying cutter disc.

[0004] The turning power head of the CN 209050174 U technical solution is directly connected to the motor for transmission. The output torque of the turning power head is equal to the motor torque. The torque is small and the vibration resistance is poor, which leads to serious vibration marks on the part processing surface and short tool life, seriously affecting the turning performance of the lathe, and failing to achieve the advantage of high turning efficiency. Utility Model Content

[0005] The utility model aims to provide a three-axle reduction truck square power head, which solves the problems existing in the prior art.

[0006] A three-axle reduction truck power head comprises a power head housing, a cutter head shaft, a middle shaft and a driving shaft.

[0007] The driving shaft is on one side of the power head housing, the cutter disc shaft is on the other side of the power head housing, the center shaft is located between the driving shaft and the cutter disc shaft, the driving shaft provides power for the power head, and the cutter disc shaft includes a turning cutter disc.

[0008] Furthermore, the power head housing includes a housing cover plate and a shaft end cover, and the power head housing protects the cutter shaft, the middle shaft, the gears and bearings on the driving shaft from being affected by flying chips generated during the machining process.

[0009] Furthermore, the cutter disc shaft includes a cutter disc shaft gear, a counterweight balance wheel, and a cutting disc.

[0010] Furthermore, a drilling device is added to the driving shaft to realize the drilling function.

[0011] The beneficial effects of the utility model are that the three-axis design reduces the influence of cutting vibration on the motor to the greatest extent. With sufficient space size, the counterweight balance wheel does not reduce the size, the motor can be directly connected to the driving shaft to improve the transmission accuracy. The power head has good vibration resistance, large torque output, and high transmission accuracy. It can be used as a standardized module accessory for medium and large metal cutting machine tools, and can be used in lathe technology transformation or CNC lathe to increase the turning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a power head in Embodiment 1 of the utility model;

[0013] Figure 2 It is an internal schematic diagram in an embodiment of the utility model.

[0014] In the figure:

[0015] 1. Power head box; 11. Box cover; 12. Shaft end cover;

[0016] 2. Cutter shaft; 21. Cutter head; 22. Cutter shaft gear; 23. Counterweight balance wheel;

[0017] 3. Middle shaft; 31. Middle shaft gear;

[0018] 4. driving shaft; 41. drilling shaft head; 42. driving shaft gear; 43. motor mounting seat; 44. motor. DETAILED DESCRIPTION

[0019] Embodiment 1:

[0020] The following is combined with Figure 1-2 The utility model is described in detail with specific implementation modes.

[0021] A three-axle reduction truck power head comprises a power head housing 1, a cutter head shaft, a middle shaft 3 and a driving shaft 4.

[0022] The driving shaft 4 is on one side of the power head housing 1 , and the cutter head shaft is on the other side of the power head housing 1 .

[0023] The power head housing 1 comprises a housing cover 11 and a shaft end cover 12. The power head housing 1 protects the cutter shaft, the middle shaft 3, the gears and bearings on the driving shaft 4 from being affected by flying chips generated during the machining process.

[0024] The cutter shaft includes a cutter shaft gear 22, a counterweight balance wheel 23, and a cutting disc 21.

[0025] The middle shaft 3 is provided with a middle shaft gear 31 .

[0026] The driving shaft 4 includes a driving shaft gear 42 , a motor mounting seat 43 , and a motor 44 .

[0027] The motor 44 is fixed on the motor mounting seat 43 and is directly connected to the driving shaft 4 through a coupling. The driving shaft 4 is connected to the middle shaft 3 through the driving shaft gear 42 meshing with the middle shaft gear 31.

[0028] The middle shaft 3 is connected to the cutter head shaft through the middle shaft gear 31 which meshes with the cutter head shaft gear 22 .

[0029] A counterweight balance wheel 23 is provided on one side of the cutter head shaft, and the other side is connected to the car cutter head 21.

[0030] The motor 44 can be controlled by a numerical control system to achieve matching with the spindle speed.

[0031] The center of the middle shaft gear 31 is not in a straight line with the centers of the driving shaft gear (42) and the cutter head shaft gear (22); the number of teeth of the middle shaft gear 31 is smaller than the number of teeth of the driving shaft gear (42) and the cutter head shaft gear (22), thereby reducing the occupied space of the power head.

[0032] In this embodiment, the number of teeth of the driving shaft gear 42 is smaller than that of the cutter shaft gear 22, which plays a role in reducing speed and increasing torque.

[0033] The middle shaft 3 has two functions: one is to reduce speed and increase torque, and the other is to increase system rigidity.

[0034] How it works

[0035] The motor 44 directly drives the driving shaft gear 42, and the driving shaft gear 42 and the middle shaft gear 31 are engaged to drive the middle shaft 3. The middle shaft 3 drives the turning cutter disc 21 on the cutter disc shaft to rotate through the engagement of the middle shaft gear 31 and the cutter disc shaft gear 22. The turning power head is installed on the lathe pallet, and the speed ratio of the main shaft and the turning power head, as well as the feed of the power head are controlled by the lathe system to complete the turning processing.

[0036] Embodiment 2: Below is combined with the attached Figure 2 On the basis of the first embodiment, a drilling shaft head 41 is added to the driving shaft 4 .

[0037] The working principle is that the driving shaft 4 drives the drilling shaft head 41 to rotate, thereby realizing drilling.

[0038] The above 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 substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-axle reduction truck square power head, characterized in that , comprising a power head housing (1), a cutter disc shaft, a central shaft (3), and a driving shaft (4), wherein the driving shaft (4) is on one side of the power head housing (1), and the cutter disc shaft is on the other side of the power head housing (1), and the central shaft (3) is located between the driving shaft (4) and the cutter disc shaft, and the driving shaft (4) provides power, and the cutter disc shaft comprises a turning cutter disc (21).

2. A three-axle reduction truck power head according to claim 1, characterized in that The cutter disc shaft comprises a cutter disc shaft gear (22), a counterweight balance wheel (23), and a cutting disc (21). One end of the cutter disc shaft is provided with the counterweight balance wheel (23), and the other end is connected to the cutting disc (21).

3. A three-axle reduction truck power head according to claim 1, characterized in that: The central shaft (3) is provided with a central shaft gear (31), and the central shaft gear (31) is connected to the cutter head shaft gear (22). One end of the driving shaft (4) is provided with a drilling shaft head (41), and the other end of the driving shaft (4) is provided with a driving shaft gear (42), a motor mounting seat (43), and a motor (44).

4. A three-axle reduction truck power head according to claim 3, characterized in that The motor (44) is fixed on the motor mounting seat (43) and is directly connected to the driving shaft (4) through a coupling. The driving shaft gear (42) meshes with the middle shaft gear (31), and the middle shaft gear (31) meshes with the cutter head shaft gear (22).

5. The three-axle reduction truck square power head according to claim 3 is characterized in that , the driving shaft (4) is provided with a drilling shaft head (41).

6. The three-axle reduction truck square power head according to claim 4 is characterized in that The number of teeth of the driving shaft gear (42) is smaller than the number of teeth of the cutter shaft gear (22), and the center of the middle shaft gear (31) is not in the same line as the center of the driving shaft gear (42) and the cutter shaft gear (22).

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