阅读说明：本技术 一种双向角度头 (Bidirectional angle head ) 是由 程振涛 汤丽君 张翰乾 汤秀清 于 2020-06-22 设计创作，主要内容包括：本发明公开了一种双向角度头,包括：角轴箱,具有输入轴孔和输出轴孔；输入轴,设在输入轴孔中,输入轴上设有第一伞齿轮；输出轴组件,包括输出轴、轴承座组件和第二伞齿轮,输出轴、轴承座组件和第二伞齿轮装配为一个整体,输出轴组件由输出轴孔的一端装入角轴箱,第二伞齿轮与第一伞齿轮啮合,输出轴在输出轴孔的两端形成第一输出端和第二输出端。在装配时,先将输出轴、轴承座组件和第二伞齿轮装配为一个整体,再将输出轴组件由输出轴孔的一端装入角轴箱,进而形成两个输出端,进行双向输出,双头结构可同时加工,极大增加了一倍的加工效率。其中,采用输出轴组件的结构形式进行整体拆装,拆装、维修、伞齿轮的组合间隙调节也更加方便。(The invention discloses a bidirectional angle head, comprising: an angle shaft housing having an input shaft hole and an output shaft hole; the input shaft is arranged in the input shaft hole, and a first bevel gear is arranged on the input shaft; the output shaft assembly comprises an output shaft, a bearing seat assembly and a second bevel gear, the output shaft, the bearing seat assembly and the second bevel gear are assembled into a whole, the output shaft assembly is installed into the angle shaft box from one end of the output shaft hole, the second bevel gear is meshed with the first bevel gear, and the output shaft forms a first output end and a second output end at two ends of the output shaft hole. When the assembly, assemble output shaft, bearing frame subassembly and second bevel gear as a whole earlier, adorn the angle axle box with the output shaft subassembly again by the one end in output shaft hole, and then form two output, carry out two-way output, but double-end structure simultaneous processing has greatly increased the machining efficiency of one time. Wherein, the structural style of adopting the output shaft subassembly carries out whole dismouting, and the combination clearance of dismouting, maintenance, bevel gear is adjusted also more conveniently.)

1. A bi-directional angle head, comprising:

an angle shaft housing having an input shaft hole and an output shaft hole;

the input shaft is arranged in the input shaft hole, and a first bevel gear is arranged on the input shaft;

the output shaft assembly comprises an output shaft, a bearing seat assembly and a second bevel gear, the output shaft, the bearing seat assembly and the second bevel gear are assembled into a whole, the output shaft assembly is installed at one end of the output shaft hole of the angle shaft box, the second bevel gear is meshed with the first bevel gear, and the output shaft is arranged at two ends of the output shaft hole to form a first output end and a second output end.

2. The bi-directional angle head of claim 1, wherein the output shaft is an integrally formed unitary shaft.

3. The bi-directional angle head of claim 2, wherein the angle housing is provided with a bearing seat assembly cavity at one side of the output shaft hole, the diameter of the first output end is larger than the diameter of the second output end, the diameter of the output shaft decreases from the first output end to the second output end in sequence, the output shaft includes a bearing seat connecting portion, a bevel gear connecting portion and a journal along the axial direction, the bearing seat assembly is assembled to the bearing seat connecting portion, after the output shaft assembly is assembled to the angle housing, the bearing seat assembly is embedded into the bearing seat assembly cavity, the second bevel gear is assembled to the bevel gear connecting portion, the journal passes through the output shaft hole, and a rotation support is provided between the journal and the output shaft hole.

4. The bi-directional angle head of claim 3, wherein the bearing housing assembly comprises a bearing housing and a first bearing, the bearing housing is sleeved outside the bearing housing connection portion of the output shaft and is connected with the angle shaft housing, the first bearing is assembled between the bearing housing and the output shaft, the bearing housing has a limit flange, and an adjustment gauge block is arranged between the end surface of the angle shaft housing and the limit flange.

5. The bi-directional angle head of claim 4, wherein a second bearing is disposed between the input shaft and the input shaft hole, a labyrinth seal structure is disposed between the input shaft and the angle shaft housing outside the second bearing, a labyrinth seal structure is disposed between the output shaft and the angle shaft housing outside the first bearing, and a labyrinth seal structure is disposed between the output shaft and the angle shaft housing outside the rotary support body.

6. The bi-directional angle head of claim 5, wherein an air flow passage is provided in the corner housing and bearing housing, said air flow passage opening into each of said labyrinth seals.

7. The bi-directional angle head of claim 6, wherein the angle housing has a locating pin, the locating pin having a quick-insertion air pipe interface, the air flow channel being connected to the quick-insertion air pipe interface.

8. The bi-directional angle head of claim 1, wherein both ends of the output shaft are provided with a tapered bore and a lock nut.

9. The bi-directional angle head of claim 1, wherein said first bevel gear is smaller than said second bevel gear, and wherein said first bevel gear and said second bevel gear are both grinding bevel gears.

10. The bi-directional angle head of claim 1, wherein the input shaft has a shank cone, an end of the shank cone being attached to a blind rivet.

Technical Field

The invention is used in the field of machining, and particularly relates to a bidirectional angle head.

Background

The angle head that the existing market is general includes one-way angle head and two-way angle head, and one-way angle head can't satisfy the requirement that requires multiaspect processing in the work. The design of the bidirectional angle head can reduce repeated clamping of the tool and improve the machining efficiency, and meanwhile, the structure of the machine tool does not need to be changed, so that the machining range and the adaptability of the machine tool are improved. However, the existing bidirectional angle head has at least the following disadvantages: 1. the output shaft adopts a split shaft, the structural rigidity is crossed, and the axial rigidity of bidirectional processing is difficult to maintain; 2. the two output ends of the output shaft are basically consistent in size, and the processing ductility is not good; 3. the disassembly, adjustment and maintenance of the output shaft in the machine body are complicated.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art, and provides a bidirectional angle head which is integrally disassembled and assembled by adopting the structural form of an output shaft assembly, so that the disassembly, the assembly, the adjustment and the maintenance are more convenient.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a bi-directional angle head, comprising:

an angle shaft housing having an input shaft hole and an output shaft hole;

the input shaft is arranged in the input shaft hole, and a first bevel gear is arranged on the input shaft;

the output shaft assembly comprises an output shaft, a bearing seat assembly and a second bevel gear, the output shaft, the bearing seat assembly and the second bevel gear are assembled into a whole, the output shaft assembly is installed at one end of the output shaft hole of the angle shaft box, the second bevel gear is meshed with the first bevel gear, and the output shaft is arranged at two ends of the output shaft hole to form a first output end and a second output end.

In some embodiments, the output shaft is an integrally formed, unitary shaft.

In some embodiments, the axle box is provided with a bearing seat assembly cavity on one side of the output shaft hole, the diameter of the first output end is greater than that of the second output end, the diameter of the output shaft is gradually decreased from the first output end to the second output end, the output shaft comprises a bearing seat connecting part, a bevel gear connecting part and a journal along the axis direction, the bearing seat assembly is assembled on the bearing seat connecting part, after the output shaft assembly is assembled in the axle box, the bearing seat assembly is embedded into the bearing seat assembly cavity, the second bevel gear is assembled on the bevel gear connecting part, the journal penetrates through the output shaft hole, and a rotary support body is arranged between the journal and the output shaft hole.

In some embodiments, the bearing seat assembly includes a bearing seat and a first bearing, the bearing seat is sleeved outside the bearing seat connecting portion of the output shaft and is connected with the angle shaft box, the first bearing is assembled between the bearing seat and the output shaft, the bearing seat has a limit flange, and an adjusting gauge block is arranged between the end surface of the angle shaft box and the limit flange.

In some embodiments, a second bearing is disposed between the input shaft and the input shaft hole, a labyrinth seal structure is disposed between the input shaft and the corner shaft box outside the second bearing, a labyrinth seal structure is disposed between the output shaft and the corner shaft box outside the first bearing, and a labyrinth seal structure is disposed between the output shaft and the corner shaft box outside the rotary support.

In some embodiments, an air flow passage is provided in the corner housing and bearing housing, the air flow passage opening into each of the labyrinth seals.

In some embodiments, a positioning pin is arranged on the corner shaft box, the positioning pin is provided with a fast-insertion air pipe interface, and the air flow channel is connected with the fast-insertion air pipe interface.

In some embodiments, both ends of the output shaft are provided with a taper hole and a lock nut.

In some embodiments, the first bevel gear is smaller than the second bevel gear, and both the first bevel gear and the second bevel gear are ground bevel gears.

In some embodiments, the input shaft has a shank cone with a blind rivet attached to an end of the shank cone.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when the output shaft assembly is assembled, the output shaft, the bearing seat assembly and the second bevel gear are assembled into a whole, then the output shaft assembly is assembled into the angle shaft box from one end of the output shaft hole, two output ends are formed, two-way output is carried out, the double-end structure can be processed simultaneously, and the processing efficiency is greatly doubled. Wherein, the structural style of adopting the output shaft subassembly carries out whole dismouting, and the combination clearance of dismouting, maintenance, bevel gear is adjusted also more conveniently.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of the output shaft assembly of one embodiment shown in FIG. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1, an embodiment of the present invention provides a bi-directional angle head including an angle housing 1, an input shaft 2, and an output shaft assembly 3. The corner housing 1 supports the input shaft 2 and the output shaft assembly 3 and forms a structural protection, and the corner housing 1 may be one member or a plurality of members assembled together. The corner housing 1 has an input shaft opening and an output shaft opening which are at an angle to each other, for example 90 °. The input shaft 2 is provided in and rotatable in an input shaft hole, the input shaft 2 is adapted to be connected to a drive structure such as a high-speed electric spindle, and the input shaft 2 is provided with a first bevel gear 21 adapted to engage with a second bevel gear 32 of the output shaft 31 to change the shaft output direction.

Referring to fig. 1 and 2, the output shaft assembly 3 includes an output shaft 31, a bearing block assembly and a second bevel gear 32, the output shaft 31, the bearing block assembly and the second bevel gear 32 are assembled into a whole, the output shaft assembly 3 is installed into the angle shaft housing 1 from one end of a hole of the output shaft 31, the second bevel gear 32 is engaged with the first bevel gear 21, the output shaft 31 forms a first output end 33 and a second output end 34 at both ends of the output shaft hole, and the first output end 33 and the second output end 34 can be connected with the same or different machining tools. The angle shaft box 1 is in a static state, the input shaft 2 is matched with the second bevel gear 32 through the first bevel gear 21 to operate, the output shaft 31 is connected and driven to operate at a high speed, and the output shaft 31 outputs and provides cutting torque.

In the embodiment of the invention, when the output shaft assembly 3 is assembled, the output shaft 31, the bearing seat assembly and the second bevel gear 32 are assembled into a whole, and then the output shaft assembly 3 is installed into the angle shaft box 1 from one end of the output shaft hole, so that two output ends are formed for bidirectional output, and the double-head structure can be simultaneously processed, thereby greatly increasing the processing efficiency by one time. Wherein, the structural style of the output shaft component 3 is adopted to carry out the integral disassembly and assembly, and the disassembly, the maintenance and the combination clearance adjustment of the bevel gear are more convenient.

The output shaft 31 is integrally formed or separately formed and then connected as a whole, for example, in some embodiments shown in fig. 2, the output shaft 31 is an integrally formed whole shaft, and is designed as a whole shaft to ensure structural rigidity and maintain axial rigidity of the shaft for bidirectional processing.

Referring to fig. 2, the diameter of the first output end 33 of the output shaft 31 is larger than that of the second output end 34, that is, two large and small output ends are formed, wherein the first output end 33 with the larger diameter can be provided with a disc milling cutter for grinding, and can also be provided with a vertical drilling and milling cutter for milling grooves, and the small end processing can be used for working conditions such as drilling, and the ductility of the processing procedure is expanded.

Referring to fig. 1 and 2, a bearing seat assembly cavity 11 is formed in one side of an output shaft hole of an angle shaft housing 1, the size of the bearing seat assembly cavity 11 is larger than that of the output shaft hole 12, the diameter of an output shaft 31 is gradually decreased from a first output end 33 to a second output end 34, the output shaft 31 includes a bearing seat connecting portion 35, a bevel gear connecting portion 36 and a journal 37 along an axial direction, the bearing seat assembly is assembled on the bearing seat connecting portion 35, after the output shaft assembly 3 is assembled in the angle shaft housing 1, the bearing seat assembly is embedded in the bearing seat assembly cavity 11, a second bevel gear 32 is assembled on the bevel gear connecting portion 36 and is meshed with a first bevel gear 21, the journal 37 penetrates through the output shaft hole 12, a rotation support body 38 is arranged between the journal 37 and the output shaft hole 12, and the. The appearance of the output shaft assembly 3 is set to be a gradually decreasing structure, so that the whole output shaft assembly 3 can be assembled and installed from one end of the angle shaft box 1, and meanwhile, the torque transmission is also ensured by the selected design.

Referring to fig. 1 and 2, the bearing housing assembly includes a bearing housing 39 and a first bearing 310, the bearing housing 39 is fitted over the outside of the bearing housing coupling portion 35 of the output shaft 31 and coupled to the corner axlebox 1, the first bearing 310 is fitted between the bearing housing 39 and the output shaft 31, and the first bearing 310 supports the output shaft 31 for high-speed operation. The bearing housing 39 has a limit flange 311, and an adjustment gauge 312 is provided between the end surface of the corner shaft housing 1 and the limit flange 311. The gap between the first bevel gear 21 and the second bevel gear 32 is plugged between the end surface of the angular shaft box 1 and the end surface of the bearing seat 39 through an adjusting gauge block 312, wherein the adjusting gauge block 312 is in a symmetrical half crescent shape at two sides, and can be directly put in and taken out from the outer periphery, so that the repeated assembly and disassembly times of parts are avoided, the combined gap between the first bevel gear 21 and the second bevel gear 32 is further adjusted, the gear combination distance tolerance range of the shaft core corresponding to the use rotating speed is reached, and finally, the end nut of the second output end 34 of the output shaft 31 is locked. By using the adjusting method, the output shaft assembly 3 can be directly assembled outside, and meanwhile, the adjusting gauge block 312 can integrally move when adjusting the gear combination distance, so that the gear combination gap can be finally and effectively adjusted, the adjustment is simple and easy, and the assembly and disassembly are particularly convenient and quick.

Referring to fig. 1, a second bearing 22 is disposed between the input shaft 2 and the input shaft hole, the second bearing 22 supports the input shaft 2 to rotate at a high speed, a labyrinth seal structure 4 is disposed between the input shaft 2 and the angular shaft housing 1 on the outer side of the second bearing 22, a labyrinth seal structure 4 is disposed between the output shaft 31 and the angular shaft housing 1 on the outer side of the first bearing 310, and a labyrinth seal structure 4 is disposed between the output shaft 31 and the angular shaft housing 1 on the outer side of the rotation support body 38. In other words, the three shaft holes of the angular shaft box 1, the input shaft 2 and the output shaft 31 are sealed by the labyrinth seal structure 4 formed by the mutual matching of the annular boss and the annular groove, so that the sealing requirement and the working requirement of high-speed rotation are met.

Further, referring to fig. 1, the angle shaft housing 1 and the bearing housing 39 are provided with an air flow channel 12, the air flow channel 12 is communicated with each labyrinth seal structure 4, the air flow channel 12 is externally connected with an air source and then enters the angle shaft housing 1 and the bearing housing 39, the end part of the angle shaft housing 1 is respectively provided with the labyrinth seal structures 4, and air flows overflow through the labyrinth seal structures 4 to achieve a dust blowing effect, so as to ensure the relative sealing of the operation environment inside the housing of the first bearing 310, the second bearing 22 and the rotary support body 38; meanwhile, an air pipe channel is arranged in the corner shaft box 1, so that the optimization effects of reducing heat, reducing noise and the like are achieved.

In some embodiments, referring to fig. 1, the corner shaft housing 1 is provided with a positioning pin 5, and in the whole structure, the corner shaft housing 1 is kept in a static state and is matched with an inner hole of a high-speed spindle end cover through the positioning pin 5, and the positioning pin 5 is directly connected with an end face of the spindle end cover, so that absolute static of the corner shaft housing 1 and high-speed stable rotation of a rotating shaft are ensured. The contact surface of the positioning pin 5 is in a conical structure, the inner hole of the end face of the main shaft is in a straight hole structure, and the conical surface and the straight surface are in matched contact, so that the matched contact surface is reduced, the contact load is reduced, and the positioning mechanism is stable and stable in positioning function. It can be understood that the positioning pin 5 can also be positioned by matching a straight pin with a straight hole, so that the positioning of the angle head is firmer and more accurate.

Further, referring to fig. 1, the positioning pin 5 is provided with a fast-insertion air pipe interface 51, the fast-insertion air pipe interface 51 can be directly connected with a high-pressure air pipe, the air flow channel 12 is connected with the fast-insertion air pipe interface 51, and air introduced by the fast-insertion air pipe interface 51 is distributed to each labyrinth sealing structure 4 through the air flow channel 12. The quick air pipe insertion port 51 is provided in the positioning pin 5, so that the design of the air flow passage 12 of the corner axle box 1 can be simplified, and the manufacturing cost can be greatly reduced.

Referring to fig. 1, the output shaft 31 is provided with a taper hole and a lock nut 313 at both ends, the lock nut 313 is, for example, ER16 and ER32 collet chucks, of course, the structure is not limited to these two types of collet chucks, and the both ends of the output shaft 31 can be connected to the output shaft 31 by the taper hole and the lock nut 313. It is understood that the two ends of the output shaft 31 may also be connected to the tool on the output shaft 31 by a threaded connection, an interference fit, or the like.

In some embodiments, referring to fig. 1, first bevel gear 21 is smaller than second bevel gear 32, and both first bevel gear 21 and second bevel gear 32 are grinding bevel gears. The first bevel gear 21 and the second bevel gear 32 are precisely matched to ensure the perpendicularity of the rotating input shaft 2 and the rotating output shaft 31, and the rotating speed of the input shaft 2 to the rotating speed of the output shaft 31 is reduced, so that the output torque of the rotating output shaft 31 is increased.

Referring to fig. 1, the input shaft 2 is provided with a shank cone 23, the end part of the shank cone 23 is connected with a blind rivet 6, and the blind rivet 6 is a connecting mechanism of a machine tool spindle and the shank. The connecting end of the input shaft 2 is a 7:24 or 1:10 knife handle cone 23, and is perfectly attached to the taper hole of the high-speed electric spindle (the contact rate of the cone surface is more than or equal to 85%). Under the high-speed rotation of the electric spindle, the tool shank cone 23 and the spindle cone can still be tightly attached, and the vibration and cutting instability of the angle head under the high-speed rotation are avoided. As shown in the attached drawing 1, the tool shank cone 23 is completely attached to the high-speed electric spindle taper hole, the tool shank cone 23 is tightly attached to the spindle taper hole by means of the pulling force of the pull nail 6 and the spindle broach system product, and the spindle torque is effectively transmitted to the rotary input shaft 2 through conical surface contact. Of course, the tool shank interface of the input shaft 2 can be in threaded connection, the processing is convenient, and the torque is large.

In the embodiment of the invention, the input shaft 2 is connected with the main shaft unit to rotate at a high speed, the rotating shaft and the static angle shaft box 1 are assembled and installed through the high-precision second bearing 22, the assembling process is strictly assembled according to the assembling operation method of the second bearing 22 so as to ensure that the input shaft 2 keeps stable in a high-speed rotating state, the end surface of the input shaft 2 is precisely matched and assembled with the first bevel gear 21 and is transmitted through the torque of the second bevel gear 32 in sequence, and the transmission of the rotating speed in the whole direction keeps the matching precision of all parts in a high-speed machining state through the comprehensive fit of the gear surface. Therefore, the internal design of the structure, the machining precision of parts and the precision matching of assembly enable the output at the end face of the output shaft 31 to still maintain high combination precision, and therefore the machining precision and the machining efficiency of products are improved.

In the whole machine structure, the angle shaft box 1 keeps a static state and is matched with an inner hole of an end cover of a high-speed spindle through a positioning pin 5, a contact surface of the positioning pin 5 is of a conical structure, an inner hole of an end face of the spindle is of a straight hole structure, and the conical and straight surfaces are matched and contacted, so that the matching contact surface is reduced, the contact load is reduced, and the positioning mechanism is stable and stable in positioning function. The input shaft 2 end component and the output shaft 31 end component respectively and integrally remove residual unbalance according to the dynamic balance grade G1, the input shaft 2 and the output shaft 31 are assembled and operated by using a grinding bevel gear set, the gear selection condition is a one-to-one pairing mode, the consistency of curved surface matching is completely ensured in the assembly condition, and therefore the stable output operation of the shafts is ensured in the integrity.

In summary, the following steps: the invention has the characteristics of ensuring high stability in a high-speed cutting state under different working conditions of drilling, milling and the like, ensures the conditions of large material milling by outputting a large head end by the characteristics of axial output and radial double-head processing, can be used for working conditions of drilling and the like by processing a small head, directly ensures the high output stability of a product, and has the characteristics of high precision, high glossiness, good rust resistance, long service life and high reliability.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.