阅读说明：本技术 一种悬臂式带谐波减速器的五轴摇臂回转装置 (Five rocking arm slewer of harmonic speed reducer ware are taken to cantilever type ) 是由 林正华 于 2019-11-18 设计创作，主要内容包括：本发明涉及一种悬臂式带谐波减速器的五轴摇臂回转装置,包括卧式安装座、旋转轴组件、摆臂轴组件、工作卡盘、产品夹具组件和夹具压紧螺丝,卧式安装座包括第一腔体、第二腔体以及连接部,连接部内开有走线孔,旋转轴组件安装于第一腔体内,摆臂轴组件与第二腔体连接,旋转轴组件的轴线与摆臂轴组件的轴线相互垂直,工作卡盘与旋转轴组件的输出端传动连接,工作卡盘上安装有用于装载产品的产品夹具组件,产品夹具组件上安装有夹具压紧螺丝,卧式安装座的侧壁上安装有对刀仪。本发明的优点在于：实现了去除尾座支撑结构的同时还能保持稳定的运行,在低转速时候提供大扭矩同时解决了安装空间局限性,降低了对刀的难度提高了工作效率。(The invention relates to a cantilever type five-axis rocker arm slewing device with a harmonic reducer, which comprises a horizontal mounting seat, a rotating shaft assembly, a rocker arm shaft assembly, a working chuck, a product clamp assembly and a clamp compression screw, wherein the horizontal mounting seat comprises a first cavity, a second cavity and a connecting part, a wire passing hole is formed in the connecting part, the rotating shaft assembly is mounted in the first cavity, the rocker arm shaft assembly is connected with the second cavity, the axis of the rotating shaft assembly is vertical to the axis of the rocker arm shaft assembly, the working chuck is in transmission connection with the output end of the rotating shaft assembly, the product clamp assembly for loading a product is mounted on the working chuck, the clamp compression screw is mounted on the product clamp assembly, and a tool setting gauge is mounted on the side wall. The invention has the advantages that: the tailstock support structure is removed, meanwhile, stable operation can be kept, large torque is provided in low rotating speed, limitation of installation space is solved, the difficulty of tool setting is reduced, and working efficiency is improved.)

1. The utility model provides a five rocking arm slewer of harmonic speed reducer ware is taken to cantilever type which characterized in that: comprises a horizontal mounting seat (1), a rotating shaft component (2), a swing arm shaft component (3), a working chuck (5), a product clamp component (6) and a clamp compression screw (7), wherein the horizontal mounting seat (1) comprises a first cavity (12), a second cavity (15) and a connecting part (13) for connecting the first cavity (12) and the second cavity (15), a wire passing hole (14) capable of communicating the first cavity (12) and the second cavity (15) is formed in the connecting part (13), the rotating shaft component (2) is arranged in the first cavity (12), the swing arm shaft component (3) is connected with the second cavity (15), the axis of the rotating shaft component (2) is vertical to the axis of the swing arm shaft component (3), the working chuck (5) is in transmission connection with the output end of the rotating shaft component (2), the product clamp component (6) for loading products (8) is arranged on the working chuck (5), and a clamp compression screw (7) for positioning a product (8) is installed on the product clamp assembly (6), and a tool setting gauge (4) is installed on the side wall of the horizontal mounting seat (1).

2. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 1, is characterized in that: rotation axis subassembly (2) include rotation axis servo motor (21) and rotation axis harmonic speed reducer ware (22), rotation axis servo motor (21) fixed mounting is in first cavity (12), the output of rotation axis servo motor (21) is connected with the input of rotation axis harmonic speed reducer ware (22), the output and the work chuck (5) transmission of rotation axis harmonic speed reducer ware (22) are connected.

3. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 2 is characterized in that: rotation axis harmonic reducer ware (22) are including rotation axis harmonic generator (221), rotation axis flexbile gear (222) and rotation axis rigid gear (223), rotation axis harmonic generator (221) is installed on the output of rotation axis servo motor (21), rotation axis harmonic generator (221) is connected lid (26) through rotation axis motor with the output of rotation axis servo motor (21) and is linked into an integrated entity, the inner wall of rotation axis flexbile gear (222) compresses tightly with the outer wall of rotation axis harmonic generator (221) and is connected, the inner wall of rotation axis rigid gear (223) is connected with the outer wall cooperation of rotation axis flexbile gear (222), the terminal surface fixed connection of work chuck (5) and rotation axis rigid gear (223).

4. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 3, is characterized in that: still install rotation axis bearing (23) between the outer wall of rotation axis rigid wheel (223) and horizontal mount pad (1), still be fixed with rotation axis bearing gland (24) on horizontal mount pad (1), rotation axis bearing gland (24) crimping is on the outer lane of rotation axis bearing (23), rotation axis bearing oil blanket (25) are still installed to the top of rotation axis bearing gland (24).

5. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 1, is characterized in that: swing arm axle subassembly (3) is including swing arm axle servo motor (31), swing arm axle harmonic speed reducer ware (32), swing arm axle mount pad (33), swing arm axle installation spool (34), swing arm axle bearing (35), the front end fixed mounting of swing arm axle installation spool (34) is in second cavity (15), install swing arm axle bearing (35) on swing arm axle installation spool (34) middle part outer wall, swing arm axle mount pad (33) coaxial suit is in the outside of swing arm axle installation spool (34), just the front end inner wall of swing arm axle mount pad (33) and the outer lane interference fit of swing arm axle bearing (35), swing arm axle servo motor (31) fixed mounting is at the rear end of swing arm axle mount pad (33), the output of swing arm axle servo motor (31) is connected with the input of swing arm axle harmonic speed reducer ware (32), the output of swing arm axle harmonic speed reducer ware (32) is connected with swing arm axle installation spool (34) transmission .

6. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 5, is characterized in that: the swing arm shaft harmonic reducer (32) comprises a swing arm shaft harmonic generator (321), a swing arm shaft flexible gear (322) and a swing arm shaft rigid gear (323), wherein the swing arm shaft harmonic generator (321) is installed at the output end of a swing arm shaft servo motor (31), the swing arm shaft harmonic generator (321) is connected with the output end of the swing arm shaft servo motor (31) into a whole through a swing arm shaft motor connecting cover (38), the inner wall of the swing arm shaft flexible gear (322) is in compression connection with the outer wall of the swing arm shaft harmonic generator (321), the inner wall of the swing arm shaft rigid gear (323) is in fit connection with the outer wall of the swing arm shaft flexible gear (322), and the swing arm shaft is fixedly connected with the end face of the swing arm shaft rigid gear (323) through a line shaft (34).

7. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 5, is characterized in that: the outer side cover of swing arm axle installation spool (34) is equipped with swing arm axle bearing gland (37), swing arm axle bearing gland (37) crimping is on the outer lane of swing arm axle bearing (35), still install swing arm axle bearing oil blanket (36) between the inner circle of swing arm axle bearing gland (37) and the outer wall of swing arm axle installation spool (34).

8. The five-shaft rocker arm slewing device with the harmonic reducer of claim 5 or 7, wherein: the swing arm shaft mounting threading shaft (34) is internally provided with a threading hole (341), and the threading hole (341) is communicated with the threading hole (14).

9. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 1, is characterized in that: the product clamp assembly (6) comprises a clamp base (61), an expansion shaft (62) integrally arranged at the top of the clamp base (61) and an expansion sleeve (63) sleeved outside the expansion shaft (62), the bottom of the clamp base (61) is fixed on the top surface of the working chuck (5), the side wall of the expansion shaft (62) is provided with an expansion shaft expansion seam (621) along the axial direction, the interior of the expansion shaft (62) is provided with a conical screw hole (622) with a big top and a small bottom along the axial direction, the side wall of the expansion sleeve (63) is provided with an expansion joint (631) of the expansion sleeve along the axial direction, the middle part of the outer wall of the expansion sleeve (63) is provided with an annular product mounting clamping position (632), the product (8) is clamped in the product mounting clamping position (632), the thread part of the clamp compression screw (7) is a threaded rod section with a large upper part and a small lower part, the thread part of the clamp compression screw (7) is in threaded connection with the conical screw hole (622).

10. The five-shaft rocker arm slewing device with the harmonic reducer in the cantilever type according to claim 1, is characterized in that: the bottom of the first cavity (12) is hermetically connected with a lower end cover (11).

Technical Field

The invention relates to the technical field of mechanical rotary tables, in particular to a five-axis rocker arm rotating device with a cantilever type harmonic reducer.

Background

With the increasing industrial requirements of the market at present, the corresponding automation level is also gradually increased. More and more four-axis five-axis equipment is used in factories. In the machining of the five-axis rocker arm turntable, an inclined shaft needs to be manually adjusted in angle and then is fixedly positioned; the single-angle machining of parts such as drilling, milling and turning can be met in one-time clamping, and the limitation is very large.

When a plurality of angles or curved surfaces need to be added for machining parts, the vertical installation cannot realize the angle swing of the rotary table, the five-axis rotary table needs to be changed, a large amount of time is needed for dismounting and replacing when the rotary table is replaced, and equipment needs to be debugged again after the proper size is matched for use.

The five-axis installation or the existing five-axis rocker arm installation is provided with a tailstock supporting mechanism, and the five-axis rocker arm mechanism with the tailstock increases the installation space due to the existence of the tailstock, so that the reserved installation size of the corresponding machine tool is increased, the cost of the machine is increased, and the machine has idle risk in use.

The existing tool setting gauge of the machine tool is basically installed in a tool magazine, so when a tool is damaged and needs to be replaced in machining, the machine needs to be stopped to return to the original place and then the tool is set in the tool magazine, and the machining time is greatly shortened. And then the tool setting gauge needs to be maintained and overhauled, and a tool magazine needs to be opened for maintenance every time maintenance is carried out or replacement is needed, so that the difficulty and the working time are increased. The existing tool setting gauge is basically installed on a tool reversing base, but when the tool setting gauge works, the tool reversing base needs to be extended out, the tool reversing base is in a suspended state, power of the tool reversing base is basically driven by an air cylinder, all the tool reversing base is accompanied by vibration in moving, so that repeated positioning accuracy of the tool setting gauge is reduced, and mechanical aging tool setting accuracy slides down more seriously along with the time.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a five-shaft rocker arm slewing device with a cantilever type harmonic reducer.

The purpose of the invention is realized by the following technical scheme:

a five-axis rocker arm slewing gear with a cantilever type harmonic reducer comprises a horizontal mounting seat, a rotating shaft assembly, a swing arm shaft assembly, a working chuck, a product clamp assembly and a clamp compression screw, the horizontal mounting seat comprises a first cavity, a second cavity and a connecting part for connecting the first cavity and the second cavity, the connecting part is internally provided with a wiring hole which can communicate the first cavity and the second cavity, the rotating shaft component is arranged in the first cavity, the swing arm shaft assembly is connected with the second cavity, the axis of the rotating shaft assembly is vertical to the axis of the swing arm shaft assembly, the working chuck is in transmission connection with the output end of the rotating shaft assembly, a product clamp assembly for loading products is arranged on the working chuck, and a clamp compression screw for positioning the product is arranged on the product clamp assembly, and a tool setting gauge is arranged on the side wall of the horizontal mounting seat.

Further, the rotation axis subassembly includes rotation axis servo motor and rotation axis harmonic speed reducer ware, rotation axis servo motor fixed mounting is in first cavity, rotation axis servo motor's output is connected with rotation axis harmonic speed reducer ware's input, rotation axis harmonic speed reducer ware's output and work chuck transmission are connected.

Further, the rotation axis harmonic speed reducer ware includes rotation axis harmonic generator, rotation axis flexbile gear and rotation axis rigid gear, rotation axis harmonic generator installs on rotation axis servo motor's output, rotation axis harmonic generator links into an integrated entity through rotation axis motor connecting cover with rotation axis servo motor's output, the inner wall of rotation axis flexbile gear compresses tightly with rotation axis harmonic generator's outer wall and is connected, the inner wall of rotation axis rigid gear is connected with the outer wall cooperation of rotation axis flexbile gear, the terminal surface fixed connection of work chuck and rotation axis rigid gear.

Further, a rotating shaft bearing is further installed between the outer wall of the rotating shaft rigid wheel and the horizontal installation seat, a rotating shaft bearing gland is further fixed on the horizontal installation seat, the rotating shaft bearing gland is in compression joint with the outer ring of the rotating shaft bearing, and a rotating shaft bearing oil seal is further installed above the rotating shaft bearing gland.

Further, the swing arm shaft assembly comprises a swing arm shaft servo motor, a swing arm shaft harmonic reducer, a swing arm shaft mounting seat, a swing arm shaft mounting wire shaft and a swing arm shaft bearing, the front end of the swing arm shaft mounting wire shaft is fixedly mounted in the second cavity, the swing arm shaft bearing is mounted on the outer wall of the middle of the swing arm shaft mounting wire shaft, the swing arm shaft mounting seat is coaxially sleeved on the outer side of the swing arm shaft mounting wire shaft, the inner wall of the front end of the swing arm shaft mounting seat is in interference fit with the outer ring of the swing arm shaft bearing, the swing arm shaft servo motor is fixedly mounted at the rear end of the swing arm shaft mounting seat, the output end of the swing arm shaft servo motor is connected with the input end of the swing arm shaft harmonic reducer, and the output end of the swing arm shaft harmonic reducer is in transmission connection with the swing arm shaft mounting wire shaft.

Further, the swing arm shaft harmonic reducer comprises a swing arm shaft harmonic generator, a swing arm shaft flexible wheel and a swing arm shaft rigid wheel, wherein the swing arm shaft harmonic generator is installed at the output end of a swing arm shaft servo motor, the swing arm shaft harmonic generator and the output end of the swing arm shaft servo motor are connected into a whole through a swing arm shaft motor connecting cover, the inner wall of the swing arm shaft flexible wheel is in compression connection with the outer wall of the swing arm shaft harmonic generator, the inner wall of the swing arm shaft rigid wheel is in matching connection with the outer wall of the swing arm shaft flexible wheel, and the swing arm shaft is installed on a line shaft and is fixedly connected with the end face of the swing arm shaft rigid wheel.

Furthermore, the outer side of the swing arm shaft installation wire passing shaft is sleeved with a swing arm shaft bearing gland, the swing arm shaft bearing gland is in compression joint with the outer ring of the swing arm shaft bearing, and a swing arm shaft bearing oil seal is further arranged between the inner ring of the swing arm shaft bearing gland and the outer wall of the swing arm shaft installation wire passing shaft.

Furthermore, a wire passing hole is formed in the swing arm shaft installation wire passing shaft and communicated with the wire passing hole.

Further, the product clamp assembly comprises a clamp base, an expansion shaft and an expansion sleeve, wherein the expansion shaft is integrally arranged at the top of the clamp base, the expansion sleeve is sleeved on the outer side of the expansion shaft, the bottom of the clamp base is fixed on the top surface of a working chuck, an expansion joint of the expansion shaft is formed in the side wall of the expansion shaft along the axial direction of the expansion shaft, a conical screw hole with the upper part larger than the lower part is formed in the expansion shaft along the axial direction of the expansion shaft, an expansion joint of the expansion sleeve is formed in the side wall of the expansion sleeve along the axial direction of the expansion sleeve, an annular product mounting clamping position is formed in the middle of the outer wall of the expansion sleeve, the product is clamped in the product mounting clamping position, the thread part of the clamp compression screw is divided into a threaded rod section with the upper part larger than the lower part.

Further, the bottom of the first cavity is hermetically connected with a lower end cover.

The invention has the following advantages:

1. the cantilever type structure removes a tailstock supporting structure, greatly reduces the installation space, saves the installation space reserved by the machine tool, and directly reduces the size, the space, the price and the like of the machine tool. Through the cooperation of the two crossed roller bearings arranged outside the rocker shaft installation thread shaft and the rocker shaft harmonic reducer, the vertical floating of the rocker shaft mechanism during rotation is greatly reduced, stable operation can be kept while a tailstock supporting structure is removed, the harmonic reducer is of a flat structure and is small in size, the harmonic reducer is connected with a servo motor for driving, and the limitation of installation space is solved while large torque is provided at low rotating speed.

2. The tool setting gauge is installed on the outer side of the horizontal mounting seat, and is directly operated on the rotary worktable during maintenance, overhaul and replacement, so that the difficulty is reduced, the working efficiency is improved, the vibration and shaking conditions of the tool setting gauge in the moving process are avoided, and the tool setting precision is effectively improved.

3. Use harmonic speed reducer ware and servo motor cooperation in rotation axis subassembly and rocking arm axle subassembly, solved the condition that needs bear axial and radial load simultaneously in the processing on the one hand, improved the stability and the precision of operation, on the other hand also installs, saves installation space easily relatively. The arrangement of the swing arm shaft bearing has the effect of balancing moment, so that redundant vibration during rotation is effectively eliminated, and the precision of the five-axis rocker arm machine is improved.

4. On the rotation axis subassembly, go on with the oil blanket and chuck and horizontal mount pad cooperation form a sealed workstation structure, carried out waterproof dustproof effectively, do not have the fluting moreover on the chuck, for example U-shaped groove, T-slot etc. just so can not appear the windrow phenomenon and also reduce the follow-up clearance degree of difficulty.

5. The zero back clearance harmonic reducer is connected with the servo motor, so that the defect of inaccurate angle caused by back clearance of common gear transmission in forward and reverse rotation is overcome.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic structural view of the product clamp assembly of the present invention;

FIG. 5 is a cross-sectional structural schematic view of the product clamp assembly of the present invention;

in the figure:

1-horizontal mounting seat, 11-lower end cover, 12-first cavity, 13-connecting part, 14-wiring hole, 15-second cavity, 2-rotating shaft component, 21-rotating shaft servo motor, 22-rotating shaft harmonic reducer, 221-rotating shaft harmonic generator, 222-rotating shaft flexible gear, 223-rotating shaft rigid gear, 23-rotating shaft bearing, 24-rotating shaft bearing gland, 25-rotating shaft bearing oil seal, 26-rotating shaft motor connecting cover, 3-swing arm shaft component, 31-swing arm shaft servo motor, 32-swing arm shaft harmonic reducer, 321-swing arm shaft harmonic generator, 322-swing arm shaft flexible gear, 323-swing arm shaft rigid gear, 33-swing arm shaft mounting seat, 34-swing arm shaft mounting wiring shaft, 341-wire passing hole, 35-swing arm shaft bearing, 36-swing arm shaft bearing oil seal, 37-swing arm shaft bearing gland, 38-swing arm shaft motor connecting cover, 4-tool setting gauge, 5-working chuck, 6-product clamp assembly, 61-clamp base, 62-expansion shaft, 621-expansion shaft expansion joint, 622-conical screw hole, 63-expansion sleeve, 631-expansion sleeve expansion joint, 632-product mounting clamp position, 7-clamp compression screw, 8-product and 9-machine tool mounting seat.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a five-axis rocker arm slewing device with a cantilever type harmonic reducer comprises a horizontal mounting base 1, a rotating shaft assembly 2, a swing arm shaft assembly 3, a work chuck 5, a product clamp assembly 6 and a clamp hold-down screw 7, wherein the horizontal mounting base 1 comprises a first cavity 12, a second cavity 15 and a connecting part 13 connecting the first cavity 12 and the second cavity 15, a wire passing hole 14 capable of communicating the first cavity 12 and the second cavity 15 is formed in the connecting part 13, the rotating shaft assembly 2 is mounted in the first cavity 12, the swing arm shaft assembly 3 is connected with the second cavity 15, the axis of the rotating shaft assembly 2 is perpendicular to the axis of the swing arm shaft assembly 3, the work chuck 5 is in transmission connection with the output end of the rotating shaft assembly 2, the work chuck 5 is provided with the product clamp assembly 6 for loading a product 8, install on the product anchor clamps subassembly 6 and be used for carrying out the anchor clamps housing screw 7 of fixing a position to product 8, install tool setting appearance 4 on the lateral wall of horizontal mount pad 1, rotation axis and swing arm axle linkage make and install tool setting appearance 4 at horizontal mount pad 1 side can carry out the angular rotation, just so can realize the cutter tool setting. During installation, the swing arm shaft assembly 3 is connected with the machine tool installation seat 9, and the rotating shaft, the swing arm shaft and the XYZ three-axis moving table are combined to form five-axis machining.

Further, as shown in fig. 3, the rotating shaft assembly 2 includes a rotating shaft servo motor 21 and a rotating shaft harmonic reducer 22, the rotating shaft servo motor 21 is fixedly installed in the first cavity 12, an output end of the rotating shaft servo motor 21 is connected with an input end of the rotating shaft harmonic reducer 22, and an output end of the rotating shaft harmonic reducer 22 is in transmission connection with the work chuck 5.

Further, as shown in fig. 3, the rotating shaft harmonic reducer 22 includes a rotating shaft harmonic generator 221, a rotating shaft flexible gear 222 and a rotating shaft rigid gear 223, the rotating shaft harmonic generator 221 is installed at an output end of the rotating shaft servo motor 21, the rotating shaft harmonic generator 221 and an output end of the rotating shaft servo motor 21 are connected into a whole through a rotating shaft motor connecting cover 26, an inner wall of the rotating shaft flexible gear 222 is connected with an outer wall of the rotating shaft harmonic generator 221 in a pressing manner, an inner wall of the rotating shaft rigid gear 223 is connected with an outer wall of the rotating shaft flexible gear 222 in a matching manner, and the work chuck 5 is fixedly connected with an end face of the rotating shaft rigid gear 223.

Further, as shown in fig. 3, a rotating shaft bearing 23 is further installed between the outer wall of the rotating shaft rigid wheel 223 and the horizontal mounting base 1, the rotating shaft bearing 23 is a crossed roller bearing, the interior of the crossed roller bearing adopts the structural characteristics that rollers are arranged in a 90-degree mutually perpendicular and crossed manner, and the like, so that the rotating shaft bearing has high rotating precision, is easy to install, saves installation space, and particularly can simultaneously bear axial and radial loads, and thus the stability of the harmonic reducer in operation can be ensured, a rotating shaft bearing gland 24 is further fixed on the horizontal mounting base 1, the rotating shaft bearing gland 24 is crimped on the outer ring of the rotating shaft bearing 23, a rotating shaft bearing oil seal 25 is further installed above the rotating shaft bearing gland 24, and the rotating shaft bearing oil seal 25 can play a role in dust prevention and water prevention.

Further, as shown in fig. 3, the swing arm shaft assembly 3 includes a swing arm shaft servo motor 31, a swing arm shaft harmonic reducer 32, a swing arm shaft mounting seat 33, a swing arm shaft mounting wire shaft 34, a swing arm shaft bearing 35, the front end of the swing arm shaft installation through shaft 34 is fixedly installed in the second cavity 15, the outer wall of the middle part of the swing arm shaft installation through shaft 34 is provided with a swing arm shaft bearing 35, the swing arm shaft bearing 35 is a crossed roller bearing, the swing arm shaft installation seat 33 is coaxially sleeved on the outer side of the swing arm shaft installation through shaft 34, and the inner wall of the front end of the swing arm shaft mounting seat 33 is in interference fit with the outer ring of the swing arm shaft bearing 35, the swing arm shaft servo motor 31 is fixedly arranged at the rear end of the swing arm shaft mounting seat 33, the output end of the swing arm shaft servo motor 31 is connected with the input end of the swing arm shaft harmonic reducer 32, the output end of the swing arm shaft harmonic reducer 32 is in transmission connection with a swing arm shaft mounting wire shaft 34.

Further, as shown in fig. 3, the swing arm shaft harmonic reducer 32 includes a swing arm shaft harmonic generator 321, a swing arm shaft flexible gear 322, and a swing arm shaft rigid gear 323, the swing arm shaft harmonic generator 321 is installed at an output end of the swing arm shaft servo motor 31, the swing arm shaft harmonic generator 321 and an output end of the swing arm shaft servo motor 31 are connected into a whole through a swing arm shaft motor connecting cover 38, an inner wall of the swing arm shaft flexible gear 322 is connected with an outer wall of the swing arm shaft harmonic generator 321 in a pressing manner, an inner wall of the swing arm shaft rigid gear 323 is connected with an outer wall of the swing arm shaft flexible gear 322 in a matching manner, and the swing arm shaft is installed on the line shaft 34 and fixedly connected with an end face of the swing arm shaft rigid gear 323.

Further, as shown in fig. 3, the outer side of the swing arm shaft mounting through shaft 34 is sleeved with a swing arm shaft bearing gland 37, the swing arm shaft bearing gland 37 is pressed on the outer ring of the swing arm shaft bearing 35, and a swing arm shaft bearing oil seal 36 is further installed between the inner ring of the swing arm shaft bearing gland 37 and the outer wall of the swing arm shaft mounting through shaft 34.

Further, as shown in fig. 3, a wire passing hole 341 is formed in the swing arm shaft mounting wire passing shaft 34, the wire passing hole 341 is communicated with the wire passing hole 14, and the swing arm shaft mounting wire passing shaft 34 forms a built-in wire, so that the mounting and using space is reduced, and the appearance is more attractive.

Further, as shown in fig. 4 and 5, the product clamp assembly 6 includes a clamp base 61, an expanding shaft 62 integrally disposed on the top of the clamp base 61, and an expanding sleeve 63 sleeved outside the expanding shaft 62, the bottom of the clamp base 61 is fixed on the top surface of the work chuck 5, an expanding shaft expanding slit 621 is axially opened on the side wall of the expanding shaft 62, a tapered screw hole 622 with a large top and a small bottom is axially opened inside the expanding shaft 62, an expanding sleeve expanding slit 631 is axially opened on the side wall of the expanding sleeve 63, an annular product mounting block 632 is opened in the middle of the outer wall of the expanding sleeve 63, the product 8 is clamped in the product mounting block 632, the screw thread portion of the clamp compression screw 7 is a threaded rod section with a large top and a small bottom, and the screw thread portion of the clamp compression screw 7 is screwed with the tapered screw hole 622. Before a product 8 is loaded, the clamp compression screw 7 is adjusted to be upper-limiting, the product 8 is sleeved into the product mounting clamping position 632, the clamp compression screw 7 is adjusted downwards, the expansion sleeve 63 is expanded through taper fit, so that the outer wall of the product mounting clamping position 632 is tightly matched with the product 8, and the product 8 is fixed.

Further, as shown in fig. 3, the bottom of the first cavity 12 is hermetically connected with a lower end cap 11, so that the first cavity 12 forms a closed cavity.

The working process of the invention is as follows:

the product clamp assembly 6 fixes a product 8 through a clamp compression screw 7, and the product clamp assembly 6 is driven to rotate through the working chuck 5, so that the product 8 is rotated. The rotating shaft assembly 2 provides stable power for the rotation of the work chuck 5.

The rotary shaft servo motor 21 of the rotary shaft assembly 2 is arranged in the first cavity 12 of the horizontal mounting seat 1, the output end of the rotary shaft servo motor 21 is connected with the rotary shaft harmonic reducer 22, the rotary shaft harmonic reducer 22 provides large torque at low rotating speed, which is convenient for processing the product 8, but due to the characteristic of harmonic reduction, the inside of the harmonic reducer can bear larger load in the processing process, but the whole harmonic reducer can be influenced by the impact of axial radial force and radial force, when processing at multiple angles, the axial and radial impact force can be inevitable, which causes the precision of the whole harmonic reducer to be seriously reduced or even damaged, so when processing at multiple angles of parts, and when receiving the axial force and radial force at the same time, the precision problem can be effectively solved by arranging a crossed roller bearing at the outer side of the rotary shaft harmonic reducer 22 to bear the axial force and radial force simultaneously brought by a machine in the multiple-angle processing, the crossed roller bearing has the structural characteristic that the rollers are vertically and crossly arranged at 90 degrees, so that the crossed roller bearing has high rotation precision, is easy to install, saves installation space, and particularly can bear axial and radial loads at the same time, thereby effectively improving the stability of the rotating shaft harmonic reducer 22 in the working process and improving the processing precision. The tool setting appearance 4 that sets up in the outside of horizontal mount pad 1 is convenient for later when maintaining and overhauing, changing tool setting appearance 4, directly operates on rotary worktable, has reduced the degree of difficulty and has also improved work efficiency. Meanwhile, the conditions of vibration and shaking of the tool setting gauge 4 in the moving process are avoided, and the tool setting precision is effectively improved.

The existing high-precision four-axis or five-axis rotary table is a rotary table with a tailstock, and the rotary table is large in size and installation space and cannot meet the requirement of miniaturization. The rocker shaft assembly 3 reduces the vibration during rocker arm by using the rocker shaft harmonic reducer 32, can provide large torque required by low rotating speed, effectively eliminates the up-and-down floating of the rocker shaft assembly 3 by arranging two crossed roller bearings on the outer side of the rocker shaft mounting line shaft 34 to be matched with the rocker shaft mounting seat 33, and further achieves the technical requirement of high precision without a tailstock.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.