A high-speed power head specially used for grinding head tools

Abstract

The present invention relates to a high-speed power head dedicated to a grinding head tool, comprising a power head housing, a driving gear, a first transmission gear and a mounting shaft are arranged in the power head housing; a servo motor is arranged on the power head housing; a second transmission gear coaxial with the first transmission gear is fixed on the mounting shaft; one or more first output gears are arranged in the power head housing; a first output shaft coaxially fixed with the first output gear is rotatably arranged on the power head housing; a first ER chuck for mounting a grinding head tool is arranged at one end of the first output shaft away from the first output gear; by adjusting the gear ratio of the driving gear and the first transmission gear, the input speed of the servo motor can be easily amplified to the required speed requirement of 8000r / min by adjusting the gear ratio, and at the same time, a two-layer transmission structure of a first transmission gear and a second transmission gear coaxially fixedly connected is adopted, so that the stability of the input and output is good, thereby ensuring the output speed and stability requirements of the grinding head tool.

Description

Technical Field

[0001] The present invention relates to the technical field of power heads for Swiss-type machine tools, and more particularly to a high-speed power head specially used for grinding head tools. Background Art

[0002] Automatic machine tools are generally divided into Swiss-type machine tools and tool-feeding machine tools. The main difference between them is that in Swiss-type machine tools, the spindle moves along the Z axis and the tool moves along the X axis during processing, while in tool-feeding CNC machine tools, the tool moves along the X and Z axes during processing.

[0003] For grinding head tools, the rated speed of the power head tool shaft required for processing is 8000r / min. However, the current power heads of domestic and foreign Swiss-type lathes currently have a rated speed of 4000r / min for the power rotation axis, and a maximum of 6000r / min. It is difficult to reach this speed and ensure stable processing. Therefore, there is an urgent need for a high-speed power head specifically for grinding head tools that can reach this speed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed power head dedicated to grinding head tools in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A high-speed power head specially designed for grinding head tools is constructed, which includes a power head housing, in which a driving gear, a first transmission gear meshing with the driving gear, and a mounting shaft for mounting the first transmission gear are arranged; a servo motor that drives the driving gear is arranged on the power head housing; a second transmission gear coaxial with the first transmission gear is fixed on the mounting shaft; one or more first output gears meshing with the second transmission gear are arranged in the power head housing; a first output shaft coaxially fixed with the first output gear is rotatably arranged on the power head housing; a first ER chuck for mounting a grinding head tool is provided at one end of the first output shaft away from the first output gear.

[0007] The high-speed power head specially designed for grinding head tools described in the present invention is characterized in that a transition gear and a third transmission gear engaged with the transition gear are rotatably provided in the power head housing; one or more second output shafts are rotatably provided on the power head housing, and a second output gear engaged with the third transmission gear is coaxially fixedly connected to the second output shaft.

[0008] The high-speed power head dedicated to the grinding head tool of the present invention is provided with a second ER chuck for mounting the grinding head tool at one end of the second output shaft away from the second output gear.

[0009] The high-speed power head dedicated to the grinding head tool described in the present invention, wherein one or more of the second output shafts are connected to a detachable rotating shaft, and the detachable rotating shaft is provided with a third ER chuck for mounting the grinding head tool.

[0010] The high-speed power head specially used for grinding head tools described in the present invention, wherein the transition gear and the third transmission gear meshing with it constitute a group of units, and multiple groups of units are arranged in sequence in the power head housing, and the transition gear of the rear unit is meshed with the third transmission gear of the front unit.

[0011] The high-speed power head specially used for grinding head tools described in the present invention, wherein the power head housing includes a housing and a cover body that are sealed and connected; a first accommodating cavity for accommodating the driving gear and the first transmission gear is formed on the cover body, and a second accommodating cavity for accommodating the second transmission gear, the first output gear, the transition gear and the third transmission gear is formed on the housing.

[0012] The high-speed power head specially used for grinding head tools described in the present invention is characterized in that the cover body is provided with a first opening for the input end of the servo motor to pass through, the servo motor is provided with an annular seal wound around the outside of its input end, and the first opening is provided with an installation step corresponding to the annular seal.

[0013] The high-speed power head dedicated to grinding head tools of the present invention is provided with a plurality of second openings on the housing for respectively extending the first output shaft and the second output shaft; and sealed bearings for sealing are provided in the second openings.

[0014] The high-speed power head dedicated to the grinding tool of the present invention is characterized in that the cover body is provided with a cooling oil nozzle assembly for oil cooling the space formed by the first accommodating cavity and the second accommodating cavity.

[0015] The high-speed power head dedicated to grinding head tools of the present invention is characterized in that a grease injection screw for injecting grease into the space formed by the first accommodating cavity and the second accommodating cavity is provided on the front side of the box body.

[0016] The beneficial effects of the present invention are that by adjusting the tooth ratio of the driving gear and the first transmission gear, the input speed of the servo motor can be easily amplified to the required speed requirement of 8000r / min by adjusting the tooth ratio. At the same time, a two-layer transmission structure of the first transmission gear and the second transmission gear coaxially fixedly connected is adopted, and the input and output stability are good, thereby ensuring the output speed and stability requirements of the grinding head tool, and the overall structural layout is reasonable and compact, with a small size, which is easy to assemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0018] Figure 1 This is an overall diagram of a high-speed power head dedicated to grinding tools according to a preferred embodiment of the present invention;

[0019] Figure 2 This is an exploded view of a high-speed power head dedicated to a grinding tool according to a preferred embodiment of the present invention;

[0020] Figure 3 This is an exploded view from another angle of the high-speed power head dedicated to the grinding tool of the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0022] The preferred embodiment of the present invention is a high-speed power head for grinding tool, such as Figure 1 See also Figure 2 and Figure 3 , including a power head housing 1, in which a driving gear 100, a first transmission gear 101 meshing with the driving gear 100, and a mounting shaft 102 for mounting the first transmission gear 101 are provided; a servo motor 2 for driving the driving gear is provided on the power head housing 1; a second transmission gear 103 coaxial with the first transmission gear 101 is fixed on the mounting shaft 102; one or more first output gears 104 meshing with the second transmission gear 103 are provided in the power head housing 1; a first output shaft 105 coaxially fixed with the first output gear 104 is rotatably provided on the power head housing 1; a first ER chuck 106 for mounting a grinding head tool is provided at one end of the first output shaft 105 away from the first output gear 104;

[0023] By adjusting the gear ratio of the driving gear 100 and the first transmission gear 101, the input speed of the servo motor 2 can be easily amplified to the required speed requirement of 8000r / min by adjusting the gear ratio. At the same time, a two-layer transmission structure of the first transmission gear 101 and the second transmission gear 103 which are coaxially fixedly connected is adopted. The input and output stability are good, which ensures the output speed and stability requirements of the grinding head tool. The overall structural layout is reasonable and compact, with a small size, which is easy to assemble and maintain.

[0024] Preferably, a transition gear 107 and a third transmission gear 108 engaged with the transition gear 107 are rotatably provided in the power head housing 1; one or more second output shafts 109 are rotatably provided on the power head housing 1, and a second output gear 110 engaged with the third transmission gear 108 is coaxially fixedly connected to the second output shaft 109; it is convenient for multi-axis output, and the structure is reasonable and compact. When outputting at the same time, the first output shaft and the second output shaft have the same rotation direction, which is convenient for the consistent input and output forward and reverse direction adjustment of the servo motor.

[0025] Preferably, a second ER chuck 112 for mounting a grinding head tool is provided at one end of the second output shaft 109 away from the second output gear 110 , so as to facilitate quick installation of the grinding head tool.

[0026] Preferably, one or more of the second output shafts 109 are connected to a detachable rotating shaft 111, and the detachable rotating shaft is provided with a third ER chuck 113 for mounting the grinding head tool; this facilitates rapid change of the number of output heads as needed, and also facilitates subsequent tool expansion connection.

[0027] Preferably, the transition gear 107 and the third transmission gear 108 meshing with it constitute a group of units, and multiple groups of units are arranged in the power head housing 1. The multiple groups of units are arranged in sequence and the transition gear of the rear unit is meshed with a third transmission gear of the front unit; it is convenient to perform synchronous and unidirectional output of more axes, and the structure is reasonable and compact.

[0028] Preferably, the power head housing 1 includes a housing 10 and a cover 11 that are sealed and connected; a first accommodating cavity 1100 for accommodating a driving gear and a first transmission gear is formed on the cover 11, and a second accommodating cavity 1000 for accommodating a second transmission gear, a first output gear, a transition gear and a third transmission gear is formed on the housing 10; the structure is reasonable and compact, easy to process, small in size and low in cost.

[0029] Preferably, the cover body 11 is provided with a first opening 1101 for the input end of the servo motor 2 to pass through, the servo motor 2 is provided with an annular seal 20 wrapped around the outside of its input end, and the first opening 1101 is provided with an installation step 1102 corresponding to the annular seal 20, so as to facilitate the sealed connection and installation of the servo motor 2.

[0030] Preferably, the housing 10 is provided with a plurality of second openings 1001 for the first output shaft and the second output shaft to extend out respectively; a sealing bearing 1002 for sealing is provided in the second openings, so as to facilitate the sealed rotation assembly of the first output shaft and the second output shaft.

[0031] Preferably, the cover body 11 is provided with a cooling oil nozzle assembly 1103 for oil cooling the space formed by the first accommodating cavity and the second accommodating cavity; this facilitates integrated oil cooling of the gear components and ensures operational stability.

[0032] Preferably, a grease injection screw 1003 for injecting grease into the space formed by the first accommodating cavity and the second accommodating cavity is provided on the front of the box body 10, so as to quickly solve the grease injection problem.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A high-speed power head for grinding tool, characterized in that: It comprises a power head housing, wherein a driving gear, a first transmission gear meshing with the driving gear and a mounting shaft for mounting the first transmission gear are arranged in the power head housing; a servo motor for driving the driving gear is arranged on the power head housing; a second transmission gear coaxial with the first transmission gear is fixed on the mounting shaft; one or more first output gears meshing with the second transmission gear are arranged in the power head housing; a first output shaft coaxially fixed with the first output gear is rotatably arranged on the power head housing; a first ER chuck for mounting a grinding head tool is arranged at one end of the first output shaft away from the first output gear; a transition gear and a third transmission gear meshing with the transition gear are rotatably arranged in the power head housing; one or more second output gears are rotatably arranged on the power head housing The gearbox comprises a first gear and a second gearbox which are connected coaxially with each other to form a circle, and a second gearbox which is meshed with the third transmission gear is connected to the first gearbox by a screw thread. The gearbox comprises a first gearbox and a second gearbox which are connected in a sealed manner. The first gearbox is provided with a first accommodating cavity for accommodating the driving gear and the first transmission gear, and the second gearbox is provided with a second accommodating cavity for accommodating the second transmission gear, the first output gear, the transition gear and the third transmission gear. The first gearbox is provided with a first opening for the input end of the servo motor to pass through, and the servo motor is provided with an annular seal wound around the outside of its input end, and the first opening is provided with an installation step corresponding to the annular seal. The housing is provided with a plurality of second openings for the first output shaft and the second output shaft to extend out respectively; a sealing bearing for sealing is provided in the second opening.

2. The high-speed power head for grinding tool according to claim 1, characterized in that: A second ER chuck for mounting a grinding tool is provided at one end of the second output shaft away from the second output gear.

3. The high-speed power head for grinding tool according to claim 1, characterized in that: One or more of the second output shafts are connected to a detachable rotating shaft, and the detachable rotating shaft is provided with a third ER chuck for mounting a grinding head tool.

4. The high-speed power head for grinding tool according to any one of claims 1 to 3, characterized in that: The transition gear and the third transmission gear meshing therewith constitute a unit, and multiple groups of the unit are arranged in the power head housing. The multiple groups of units are arranged in sequence and the transition gear of the rear unit is meshed with the third transmission gear of the front unit.

5. The high-speed power head for grinding tool according to claim 1, characterized in that: The cover body is provided with a cooling oil nozzle assembly for oil cooling the space formed by the first accommodating cavity and the second accommodating cavity.

6. The high-speed power head for grinding tool according to claim 1, characterized in that: A grease injection screw for injecting grease into the space formed by the first accommodating cavity and the second accommodating cavity is arranged on the front side of the box body.

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