CN217800938U

CN217800938U - Distribution structure of numerical control machine tool

Info

Publication number: CN217800938U
Application number: CN202221386910.4U
Authority: CN
Inventors: 高令; 谭志强; 李叶明; 白全升
Original assignee: Shenzhen Xike Precision Technology Co ltd
Current assignee: Shenzhen Xike Precision Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-11-15
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a digit control machine tool distribution structure, it is including installing distribution module and the distribution module that is used for connecting air supply system and power supply system on rotatory transposition mechanism, the distribution module including run through install in rotatory transposition mechanism rotation center's cavity is given the trachea, set up in the cavity is given trachea upper end and at least corresponds the multichannel air flue joint board of connecting an execute component and with the mode that can rotate install in cavity is given the trachea lower extreme and is used for connecting air supply system's air supply air cock of air supply line. The hollow air supply pipe is arranged at the rotating center of the rotary transposition mechanism in a penetrating mode, so that the hollow air supply pipe can rotate coaxially with the rotary transposition mechanism, the air source air nozzle connected with the air supply pipeline is connected with the hollow air supply pipe in a rotating mode, the air source air nozzle can be kept still in the process that the hollow air supply pipe rotates coaxially with the rotary transposition mechanism, and the air supply pipeline is prevented from being wound on the indexing rotating disc.

Description

Distribution structure of numerical control machine tool

The technical field is as follows:

the utility model relates to an automatic processing production technical field refers in particular to a digit control machine tool distribution structure.

Background art:

traditional lathe distribution structure appears the pipeline winding together on solid of revolution workstation easily, and this not only can make production efficiency reduce, still can have very big potential safety hazard.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

an object of the utility model is to overcome prior art's not enough, provide a digit control machine tool distribution structure.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a digit control machine tool distribution structure, is including installing distribution module and the distribution module that is used for connecting air feed system and power supply system on rotatory transposition mechanism, the distribution module including run through install in the trachea is given to the cavity of rotatory transposition mechanism rotation center, set up in the cavity is given trachea upper end and is corresponded the multichannel air flue adapter plate of connecting an executive component at least and with the mode that can rotate install in the cavity is given trachea lower extreme and is used for connecting air feed system's air supply air cock.

Further, in the above technical solution, the multi-way air duct joint plate is provided with branch air nozzles corresponding to the number of the execution elements and connected through a pipeline.

Furthermore, in the above technical solution, the executing element is a bearing and positioning device, a rotating air distribution rotating shaft for supporting the workpiece and transmitting aerodynamic force is disposed in the bearing and positioning device, and a first air passage penetrating through the rotation center and connecting the branch air nozzle is disposed in the middle of the rotating air distribution rotating shaft.

Further, in the above technical solution, the rotating air distribution rotating shaft includes a hollow rotating inner shaft, an outer shaft sleeve sleeved on the periphery of the hollow rotating inner shaft, at least one air passage groove disposed between the outer shaft sleeve and the hollow rotating inner shaft, sealing ring sets disposed on two sides of the air passage groove, at least one first air passage disposed in the hollow rotating inner shaft and communicated with the air passage groove, at least one second air passage disposed in the outer shaft sleeve and communicated with the air passage groove to communicate with the first air passage, and a first bearing disposed between the outer shaft sleeve and the hollow rotating inner shaft, and each first air passage and each second air passage are communicated with one air passage groove as a group to form a second air passage.

Furthermore, in the above technical solution, the gas distribution module further includes a pressure gauge disposed on the connecting pipe between the branch gas nozzle and the first gas path and used for detecting the pressure in the pipe.

Furthermore, in the above technical solution, the power distribution module further includes a plurality of drivers installed on the rotary transposition mechanism and used for electrically connecting with the execution element, a multi-channel conductive slip ring installed at the upper end of the rotary transposition mechanism and used for connecting with the drivers, and a slip ring fixing seat installed on the central rotation axis of the rotary transposition mechanism and used for supporting the multi-channel conductive slip ring, the multi-channel conductive slip ring is respectively connected with the plurality of drivers through a plurality of groups of wire harnesses, and the wire harnesses pass through the middle of the slip ring fixing seat.

Further, in the above technical solution, the rotary indexing mechanism includes an index rotary disk rotatably mounted on the frame for mounting and fixing the actuating elements, and a first driving device for driving the index rotary disk to rotate, the air distribution module penetrates through a rotation center of the index rotary disk, a plurality of the actuating elements and the drivers are uniformly mounted on the index rotary disk around the index rotary disk, and the number of the actuating elements is equal to that of the drivers and the actuating elements are in one-to-one correspondence with each other; the multi-channel conductive slip ring is connected with the plurality of drivers through a plurality of groups of wire harnesses respectively, and the wire harnesses penetrate through the middle of the slip ring fixing seat.

Furthermore, in the above technical solution, a water receiving table sleeved on the periphery of the driver to isolate the actuator is installed on the indexing rotary disk, a plurality of water-stop notches for sleeving the periphery of the actuator are circumferentially arranged on the water receiving table,

furthermore, in the above technical solution, a water receiving tank for receiving coolant is further sleeved on the periphery of the indexing rotary disk, a rotary disk window plate covering the driver is installed on the water receiving table, the slip ring fixing seat is installed on the rotary disk window plate, and a plurality of transparent windows corresponding to the pressure gauges in the air distribution module and used for reading the pressure gauges are arranged on the rotary disk window plate.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect:

1. the utility model discloses in adopt cavity to run through for the trachea and install in the center of rotation of rotatory transposition mechanism for cavity gives the trachea can with rotatory transposition mechanism coaxial rotation, will connect the air supply air cock of gas supply line again and cavity to give the trachea and adopt being connected of enough rotatory mode, gives the trachea at cavity and can keep motionless along with the in-process air cock of rotatory transposition mechanism coaxial rotation, and then plays and prevent that the gas supply line winding is on the graduation rotary disk.

2. The utility model discloses in adopt the same and the driver of one-to-one with executive component quantity that sets up on rotatory transposition mechanism, by the work of executive component of every driver independent control, and through install multichannel conductive slip ring and main control circuit connection on the rotation center axis on rotatory transposition mechanism upper portion, utilize multichannel conductive slip ring to install and can effectively avoid the wire winding on the rotation center axis of rotatory transposition mechanism, thereby realize executive component and numerical control system's electric connection, and control every executive component matching a driver, can effectively reduce main control circuit and multichannel conductive slip ring's the connecting wire pencil, and then reduce the quantity of conducting ring in the multichannel conductive slip ring, reduce the size of multichannel conductive slip ring, make overall structure compacter, reduce the volume of burnishing machine, can also reduce multichannel conductive slip ring's preparation or purchase cost simultaneously, practice thrift enterprise manufacturing cost.

Description of the drawings:

fig. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is a first internal structure diagram of a first embodiment of the present invention;

FIG. 3 is a second internal structure diagram of the first embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a perspective view of a bearing and positioning device according to a first embodiment of the present invention;

fig. 6 is a first cross-sectional view of a first load-bearing positioning device according to a first embodiment of the present invention;

fig. 7 is a second cross-sectional view of the bearing and positioning device in the first embodiment of the present invention;

fig. 8 is a schematic structural view of the present invention;

fig. 9 is a perspective view of the middle air distribution module of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Referring to fig. 8 and 9, the gas distribution and power distribution structure of the numerical control machine tool includes a gas distribution module 4 and a power distribution module 5 which are installed on a rotary transposition mechanism 2 and used for connecting a gas supply system and a power supply system, wherein the gas distribution module 4 includes a hollow gas supply pipe 41 which is installed through a rotation center of the rotary transposition mechanism 2, a multi-channel gas channel joint plate 42 which is arranged at an upper end of the hollow gas supply pipe 41 and at least correspondingly connected with an execution element, and a gas source nozzle 43 which is installed at a lower end of the hollow gas supply pipe 41 in a rotatable manner and used for connecting a gas supply pipeline of the gas supply system. The hollow air supply pipe 41 is arranged in the rotating center of the rotating transposition mechanism 2 in a penetrating mode, so that the hollow air supply pipe 41 can rotate coaxially with the rotating transposition mechanism 2, the air source air nozzle 43 connected with the air supply pipeline is connected with the hollow air supply pipe 41 in a rotating mode, the air source air nozzle 43 can be kept still in the process that the hollow air supply pipe 41 rotates coaxially with the rotating transposition mechanism 2, and the air supply pipeline is prevented from being wound on the indexing rotating disc 21.

The multi-way air duct joint plate 42 is provided with branch air nozzles 44 which correspond to the number of the execution elements and are connected through pipelines. The multi-path air duct joint plate 42 at the upper end of the hollow air supply pipe 41 is connected with different execution elements on the rotary transposition mechanism 2 through the plurality of branch air nozzles 44, so that the winding of branch pipelines on the rotary transposition mechanism 2 is avoided, an excellent air distribution scheme is achieved, and the problem that pipelines are easy to wind in the conventional equipment adopting the rotary transposition scheme is solved

The actuating element is a bearing and positioning device 3, a rotary air distribution rotating shaft 32 for supporting a workpiece and transmitting pneumatic power is arranged in the bearing and positioning device 3, and a first air path 34 which penetrates through a rotating center and is used for connecting the branch air nozzles 44 is arranged in the middle of the rotary air distribution rotating shaft 32. The vacuum chuck is connected through the first air path 34 in the rotary air distribution rotating shaft 32, so that the workpiece is adsorbed, positioned and installed, the rotary air distribution rotating shaft 32 can also drive the workpiece to rotate through the rotary air distribution rotating shaft 32, so that the workpiece is machined in multiple shafts, and in the rotating process that the workpiece is driven by the rotary air distribution rotating shaft 32 through the bearing and positioning device 3, a pipeline connecting the air distribution module 4 and the first air path 34 cannot be wound all the time.

The rotating air distribution rotating shaft 32 includes a hollow rotating inner shaft 321, an outer shaft sleeve 322 sleeved on the periphery of the hollow rotating inner shaft 321, at least one air channel groove 323 arranged between the outer shaft sleeve 322 and the hollow rotating inner shaft 321, a sealing ring group 324 arranged on both sides of the air channel groove 323, at least one first air channel 325 arranged in the hollow rotating inner shaft 321 and communicated with the air channel groove 323, at least one second air channel 326 arranged in the outer shaft sleeve 322 and communicated with the air channel groove 323 to communicate the first air channel 325, and a first bearing 327 arranged between the outer shaft sleeve 322 and the hollow rotating inner shaft 321, wherein each first air channel 325 and each second air channel 326 and one air channel groove 323 are communicated as a group to form a second air channel.

The air channel groove 323 is arranged between the hollow rotating inner shaft 321 and the outer shaft sleeve 322, the first air channel 325 and the second air channel 326 connected with the air channel groove 323 are respectively arranged in the hollow rotating inner shaft 321 and the outer shaft sleeve 322 to form an air channel, and the air channel is sealed by the sealing ring groups 324 arranged at two sides of the air channel groove 323, so that in the process that the bearing positioning device 3 drives the hollow rotating inner shaft 321 to rotate, the first air channel 325 is always communicated with the second air channel 326 through the air channel groove 323, after the second air channel 326 is connected with the air distribution module 4 through a pipeline, the connecting pipeline cannot be wound in a rotating mode all the time, independent communication of multiple air channels can be achieved between the air distribution module 4 and the positioning clamp 33 through the rotating air distribution rotating shaft 32, and application of multiple air channels on the positioning clamp 33 in the bearing positioning device 3 is improved. For example: in an embodiment, two sets of second gas circuits are arranged in the rotary gas distribution rotating shaft 32, the cylinder can be additionally arranged on the positioning fixture 33 as a power device through the two sets of second gas circuits, a power source on the positioning fixture 33 can be increased, the workpiece can be adjusted according to the adoption of a linear cylinder or a rotary cylinder and the like, so that the multifunctional application of the bearing positioning device 3 is promoted, the universality of the bearing positioning device 3 is promoted, the multifunctional application of the bearing positioning device 3 can be further promoted through the number of the second gas circuits, and the universality of the bearing positioning device 3 can be increased through the adjustment of the power source. Secondly, the installation of different workpieces can also be achieved by replacing different positioning fixtures 33.

The gas distribution module 4 further includes a pressure gauge 45 disposed on a connecting pipeline between the branch gas nozzle 44 and the first gas path 34 and used for detecting pressure in the pipeline.

The power distribution module 5 is still including a plurality of install in on the rotatory transposition mechanism 2 and be used for with executive component electric connection's driver 51, set up in 2 upper ends of rotatory transposition mechanism are used for connecting the multichannel of driver 51 leads electrical slip ring 52 and install in on the 2 central rotation axis of rotatory transposition mechanism and be used for supporting the multichannel leads electrical slip ring 52's sliding ring fixing base 53, lead electrical slip ring 52 on the multichannel respectively with a plurality of through the multiunit pencil the driver 51 is connected, just the pencil in pass in the middle of the sliding ring fixing base 53. The drivers 51 which are the same as the number of the execution elements and correspond to the execution elements one by one are arranged on the rotary transposition mechanism 2, each driver 51 independently controls one execution element to work, the multi-channel conductive slip ring 52 is arranged on the rotary central axis at the upper part of the rotary transposition mechanism 2 and is connected with the main control circuit, and the multi-channel conductive slip ring 52 is arranged on the rotary central axis of the rotary transposition mechanism 2, so that the winding of a lead can be effectively avoided, the electric connection of the execution elements and a numerical control system is realized, each execution element is matched with one driver 51 to be controlled, the connecting wire harness between the main control circuit and the multi-channel conductive slip ring 52 can be effectively reduced, the number of the conductive rings in the multi-channel conductive slip ring 52 is further reduced, the size of the multi-channel conductive slip ring 52 is reduced, the overall structure is more compact, the size of the polishing machine is reduced, the manufacturing or purchasing cost of the multi-channel conductive slip ring 52 can be reduced, and the production cost of enterprises is saved.

The rotary indexing mechanism 2 comprises an indexing rotary disc 21 which is rotatably arranged on the frame 1 and is used for installing and fixing the actuating elements and a first driving device 22 for driving the indexing rotary disc 21 to rotate, the air distribution module 4 penetrates through the rotation center of the indexing rotary disc 21, a plurality of actuating elements and the drivers 51 are uniformly arranged on the indexing rotary disc 21 in the circumferential direction, and the number of the actuating elements is equal to that of the drivers 51 and corresponds to that of the drivers 51 one by one; the multi-channel conductive slip ring 52 is connected with the plurality of drivers 51 through a plurality of groups of wire harnesses, and the wire harnesses pass through the middle of the slip ring fixing seat 53. The first drive 22 is a second cam divider, which is a 110DF flange type divider, including a servo motor and a cam divider.

The indexing rotary disk 21 is provided with a water receiving table 71 which is sleeved on the periphery of the driver 51 to isolate the actuating element, a plurality of water stopping notches 73 which are sleeved on the periphery of the actuating element are circumferentially distributed on the water receiving table 71,

the periphery of the indexing rotary disk 21 is further sleeved with a water receiving groove 72 for receiving cooling liquid, the water receiving table 71 is provided with a rotary disk window plate 74 covered on the driver 51, the sliding ring fixing seat 53 is arranged on the rotary disk window plate 74, and the rotary disk window plate 74 is provided with a plurality of perspective windows 75 corresponding to the pressure gauge 45 in the gas distribution module 4 and used for reading the pressure gauge 45.

See fig. 1 to fig. 9, for the utility model discloses an embodiment one, a full-automatic intelligent polishing machine, it includes: the polishing machine comprises a frame 1, a rotary transposition mechanism 2 arranged in the middle of the frame 1 and used for switching stations, a plurality of bearing and positioning devices 3 which are circumferentially arranged on the rotary transposition mechanism 2 and used for fixing workpieces, a gas distribution module 4 and a power distribution module 5 which are arranged in the middle of the rotary transposition mechanism 2 and used for connecting the bearing and positioning devices 3 to supply power and gas, a plurality of polishing manipulators 6 which are arranged at the upper end of the frame 1 and used for processing the workpieces on the bearing and positioning devices 3, and a water separation device 7 which is arranged on the rotary transposition mechanism 2 and used for separating the gas distribution module 4 from the bearing and positioning devices 3 and separating the power distribution module 5 from the bearing and positioning devices 3, wherein the polishing manipulators 6 are positioned above the bearing and positioning devices 3, and the rotary transposition mechanism 2 drives the bearing and positioning devices 3 to switch between the polishing manipulators 6. The ring is equally arranged on the rotary transposition mechanism 2, a plurality of bearing and positioning devices 3 used for installing and positioning workpieces are arranged on the ring, a plurality of polishing manipulators 6 used for processing the workpieces are arranged above the rotary transposition mechanism 2, the rotary transposition mechanism 2 drives the bearing and positioning devices 3 to be switched among the polishing manipulators 6, the processing of different procedures on the workpieces is completed through different polishing manipulators 6, the workpieces or polishing discs do not need to be repeatedly disassembled and assembled, errors caused by clamping are reduced, and the processing precision is improved. Secondly, will bear positioner 3 and adopt the circumference evenly distributed, can make overall structure compacter, the equipment volume is littleer, reduces the place area occupied, and realizes the processing of a plurality of stations by an equipment, can reduce enterprise manufacturing cost by a wide margin, is favorable to enterprise transformation development.

The bearing and positioning device 3 comprises an R shaft module 31 which is arranged on the rotary transposition mechanism 2 and matched with the rotary transposition mechanism 2 and the polishing manipulator 6 to accurately position and process the workpiece, a rotary air distribution rotating shaft 32 which is arranged on the R shaft module 31 and used for transmitting air flow and torque, and a positioning clamp 33 which is arranged on the rotary air distribution rotating shaft 32 and used for fixing the workpiece, wherein a first air passage 34 which penetrates through a rotary center and is used for connecting the air distribution module 4 is arranged in the middle of the rotary air distribution rotating shaft 32. Through at R axle module 31 with set up rotatory distribution pivot 32 transmission power and the rotatory distribution pivot 32 of connecting distribution module 4 between the positioning fixture 33, the vacuum chuck on the positioning fixture 33 is connected by first gas circuit 34 in the rotatory distribution pivot 32, the realization is to the absorption location installation of work piece, and R axle module 31 also can drive positioning fixture 33 through rotatory distribution pivot 32 and drive the work piece rotatory, realize the multiaxis processing to the work piece with cooperation polishing machine hand 6, increase the machining capacity of burnishing machine, promote burnishing machine processing commonality, and in R axle module 31 through rotatory distribution pivot 32 drive positioning fixture 33 rotation process, the pipeline of connecting distribution module 4 and first gas circuit 34 can not twine all the time.

The rotating air distribution rotating shaft 32 includes a hollow rotating inner shaft 321 connecting the output shaft of the R-shaft module 31 and the positioning fixture 33, an outer shaft sleeve 322 installed on the outer shell of the R-shaft module 31 and sleeved on the periphery of the hollow rotating inner shaft 321, at least one air channel groove 323 arranged between the outer shaft sleeve 322 and the hollow rotating inner shaft 321, sealing ring sets 324 arranged on both sides of the air channel groove 323, at least one first air channel 325 arranged in the hollow rotating inner shaft 321 and communicated with the air channel groove 323, at least one second air channel 326 arranged in the outer shaft sleeve 322 and communicated with the air channel groove 323 to communicate with the first air channel 325, and a first bearing 327 arranged between the outer shaft sleeve 322 and the hollow rotating inner shaft 321, and each first air channel 325 and each second air channel 326 are communicated with one air channel groove 323 as a group to form a second air channel, wherein the first air channel 325 is arranged in the hollow rotating inner shaft 321 in the axial direction, and the second air channel 326 is arranged in the outer shaft sleeve 322 in the radial direction; the first air passage 34 passes through the output shaft of the R-axis module 31 and the hollow rotating inner shaft 321. When multiple sets of second gas paths are used, the sealing rings in the sealing ring set 32 can be shared between the two gas path grooves 323.

The air channel groove 323 is arranged between the hollow rotating inner shaft 321 and the outer shaft sleeve 322, the first air channel 325 and the second air channel 326 which are connected with the air channel groove 323 are respectively arranged in the hollow rotating inner shaft 321 and the outer shaft sleeve 322, so that an air channel is formed, and the air channel tightness is realized by the sealing ring groups 324 arranged on the two sides of the air channel groove 323, so that in the process that the R-shaft module 31 drives the hollow rotating inner shaft 321 to rotate, the first air channel 325 is always communicated with the second air channel 326 through the air channel groove 323, after the second air channel 326 is connected with the air distribution module 4 through a pipeline, the connecting pipeline cannot be wound in a rotating mode all the time, the independent communication of multiple air channels can be realized between the air distribution module 4 and the positioning fixture 33 through the rotating air distribution rotating shaft 32, and the multiple applications on the positioning fixture 33 in the bearing and positioning device 3 are improved. For example: in an embodiment, two sets of second gas circuits are arranged in the rotary gas distribution rotating shaft 32, the cylinder can be additionally arranged on the positioning fixture 33 as a power device through the two sets of second gas circuits, a power source on the positioning fixture 33 can be increased, the workpiece can be adjusted according to the adoption of a linear cylinder or a rotary cylinder and the like, so that the multifunctional application of the bearing positioning device 3 is promoted, the universality of the bearing positioning device 3 is promoted, the multifunctional application of the bearing positioning device 3 can be further promoted through the number of the second gas circuits, and the universality of the bearing positioning device 3 can be increased through the adjustment of the power source. Secondly, the installation of different workpieces can also be achieved by replacing different positioning fixtures 33.

The bearing and positioning device 3 is further provided with a silencing device 8, the silencing device 8 comprises a sponge body arranged at an exhaust port of the vacuum generator 340 and a sponge mounting cover 82 which is arranged outside the waterproof cover 36 and used for fixing the sponge body, and the vacuum generator 340 is connected with the first air path 34 and the air distribution module 4. The waterproof cover 36 is further provided with a first exhaust nozzle 83 for connecting with the exhaust port of the vacuum generator 340, and one end of the first exhaust nozzle 83 is pressed against the sponge body.

In this embodiment, the positioning fixture 33 is used for fixing a workpiece by vacuum chuck, therefore, it is necessary to set a vacuum generator 340 on the pipeline connecting the first air passage 34 and the air distribution module 4, and the grinding fluid and the cooling fluid are sucked into the pipeline in the process of generating negative pressure adsorption by the vacuum generator 340, and are discharged through the exhaust port of the vacuum generator 340, since the exhaust gas is doped with liquid, a large noise is generated at the exhaust port, the sponge is arranged at the first exhaust nozzle 83 connecting the exhaust port of the vacuum generator 340, and the noise is absorbed by the sponge, so as to reduce the noise, and the sponge is fixed outside the waterproof cover 36 by the sponge mounting cover 82, so that the sponge can be replaced quickly, and the noise reduction effect is prevented from being deteriorated due to the fact that the residues carried in the grinding fluid and the cooling fluid are sucked by the sponge. Secondly, because the sponge installation cover 82 is fixed on the outer side of the waterproof cover 36 by adopting screws, the assembly and disassembly are simple and quick, the price of the sponge body is low, and the replacement cost is low, so that the noise reduction cost can be greatly reduced while a good noise reduction effect is achieved.

The bottom of the bearing and positioning device 3 is provided with a first load cell 9 for detecting pressure. The first force measuring sensor 9 is additionally arranged at the bottom of the bearing and positioning device 3, the first force measuring sensor 9 senses and detects the loss and the offset of a workpiece on the bearing and positioning device 3 in the machining process, and then the polishing mechanical arm 6 is controlled by a numerical control system of the polishing machine to automatically correct and compensate according to data fed back by the first force measuring sensor 9, so that the machining error is further reduced, and the effect of improving the machining precision is achieved. Secondly, the first force sensor 9 can detect a clamping error after the workpiece is clamped by the positioning clamp 33, the clamping error is fed back to a numerical control system of the polishing machine, the numerical control system of the polishing machine controls the bearing positioning device 3 to adjust the position of the workpiece according to data fed back by the first force sensor 9, and controls the polishing manipulator 6 to automatically adjust the tool setting, so that the error generated in the clamping process is automatically corrected and compensated, and more accurate processing is realized. In addition, the first force measuring sensor 9 can sense and detect pressure change in the machining process, abrasion of a polishing disc on the polishing manipulator 6 can be judged by detecting the pressure change and combining a numerical control system, and then the feeding amount of the polishing manipulator 6 is adjusted to compensate the abrasion of the polishing disc, so that the effect of improving the machining precision is achieved.

In this embodiment, four polishing manipulators 6 symmetrically located at different positions of the rotary indexing mechanism 2 are disposed on the rack 1, and each polishing manipulator 6 includes an X-axis moving module mounted on the rack 1 and located above the rotary indexing mechanism 2, a Y-axis moving module mounted on the X-axis moving module, a Z-axis moving module vertically mounted on the Y-axis moving module, a polishing device mounted at a lower end of the Z-axis moving module and used for processing the workpiece, and a second force sensor disposed between the Z-axis moving module and the polishing device and used for detecting polishing pressure. And the polishing device is also provided with a spray pipe for spraying grinding fluid and cooling fluid.

Adopt to add the second force cell between Z axle removal module and the burnishing device, detect burnishing device's atress change and feed back to the numerical control system of burnishing machine in real time by the response of second force cell, the numerical control system of burnishing machine combines the more accurate wearing and tearing volume of judging out the polishing dish of data of first force cell 9 according to the second force cell, thereby the feed volume of more accurate adjustment burnishing machine manipulator 6, with the wearing and tearing of compensation polishing dish, further promote the effect of machining precision.

The rotary indexing mechanism 2 comprises an indexing rotary disk 21 which is rotatably mounted on the frame 1 and is used for mounting and fixing the bearing and positioning device 3 and a first driving device 22 for driving the indexing rotary disk 21 to rotate, the air distribution module 4 comprises a hollow air supply pipe 41 which is mounted in the rotation center of the indexing rotary disk 21 in a penetrating manner, a multi-path air passage joint plate 42 which is arranged at the upper end of the hollow air supply pipe 41 and is correspondingly connected with the bearing and positioning device 3, and an air source air tap 43 which is rotatably mounted at the lower end of the hollow air supply pipe 41 and is used for connecting an air supply pipeline, and the multi-path air passage joint plate 42 is provided with branch air taps 44 which correspond to the bearing and positioning device 3 in number and are connected through pipelines.

The hollow air supply pipe 41 is arranged in the rotation center of the indexing rotation disc 21 in a penetrating mode, so that the hollow air supply pipe 41 can rotate coaxially with the indexing rotation disc 21, the air supply air nozzle 43 connected with an air supply pipeline is connected with the hollow air supply pipe 41 in a rotating mode, the air supply air nozzle 43 can be kept still in the process that the hollow air supply pipe 41 rotates coaxially with the indexing rotation disc 21, the air supply pipeline is prevented from being wound on the indexing rotation disc 21, the multi-path air channel joint plate 42 at the upper end of the hollow air supply pipe 41 is connected with different bearing and positioning devices 3 on the indexing rotation disc 21 through the multiple branch air nozzles 44, winding of branch pipelines on the indexing rotation disc 21 is avoided, an excellent air distribution scheme is achieved, and the problem that pipelines are easy to wind in a rotary transposition scheme in traditional equipment is solved.

The first driving device 22 is a second cam divider, the indexing rotary disc 21 is mounted on an output shaft of the second cam divider, and the hollow air supply pipe 41 penetrates through the output shaft of the second cam divider; the power distribution module 5 further comprises a plurality of drivers 51 installed on the indexing rotary disk 21 and electrically connected with the bearing and positioning device 3, a multi-channel conductive slip ring 52 installed at the upper end of the rack 1 and connected with the drivers 51, and a slip ring fixing seat 53 installed on the central rotation axis of the rotary transposition mechanism 2 and used for supporting the multi-channel conductive slip ring 52. The second cam divider is a 110DF flange divider and comprises a servo motor and a cam divider.

The drivers 51 which are the same as the bearing positioning devices 3 in number and correspond to one another are arranged on the indexing rotary disk 21, each driver 51 independently controls the R-axis module 31 in one bearing positioning device 3 to work, the multichannel conductive sliding rings 52 are installed on the rotary central axis at the upper part of the rotary transposition mechanism 2 to be connected with a main control circuit, and the multichannel conductive sliding rings 52 are installed on the rotary central axis of the rotary transposition mechanism 2 to effectively avoid the winding of wires, so that the bearing positioning devices 3 are electrically connected with a numerical control system, each bearing positioning device 3 is controlled by matching one driver 51, the connecting wire harness of the main control circuit and the multichannel conductive sliding rings 52 can be effectively reduced, the number of the conductive sliding rings in the multichannel conductive sliding rings 52 is reduced, the size of the multichannel conductive sliding rings 52 is reduced, the overall structure is more compact, the size of a polishing machine is reduced, the manufacturing or purchasing cost of the multichannel conductive sliding rings 52 can be reduced, and the production cost of enterprises is saved.

The bearing and positioning device 3 further includes a flange 35 mounted on the upper end of the outer shaft sleeve 322, and a waterproof cover 36 mounted on the flange 35 and covering the R-axis module 31 and the rotating air distribution rotating shaft 32, where the R-axis module 31 includes a first cam divider 311 for mounting and supporting the rotating air distribution rotating shaft 32, and a first servo motor 312 connected to the power distribution module 5 and used for driving the first cam divider 311 to operate. The first air passage 34 penetrates the output shaft of the first cam divider 311. The first cam divider 311 is a conventional cam divider.

The rotary transposition mechanism 2 adopts the second cam divider as a driving device to drive the indexing rotary disc 21 to rotate and transpose, so that the workpieces are accurately switched between the polishing manipulators 6, an accurate replacement process is achieved, and meanwhile the R-axis module 31 is accurately adjusted in a mode that the first servo motor 312 drives the first cam divider 311, so that the workpieces are accurately positioned, and the processing accuracy of the workpieces is improved; and because the workpieces can be processed in a plurality of processes only by clamping once, and the R-axis module 31 can accurately return to the initial position and the angle after the workpieces are processed in all processes through the scheduling of the numerical control system, when the next workpiece is clamped, the positioning accuracy and the clamping error are consistent with those of the previous workpiece, therefore, the tool setting does not need to be corrected again, the processing accuracy deviation caused by different clamping errors of batch processed parts is reduced, and the processing accuracy of the whole batch of workpieces is ensured not to generate great difference. Secondly, the numerical control system of the polishing machine controls the R-axis module 31 to adjust the position of the workpiece by combining the clamping error detected by the first force sensor 9, so that the deviation of the clamping error is corrected, and the clamping error is further reduced.

Rotatory transposition mechanism 2 is gone up ring week evenly distributed and is provided with six

bear positioner

3, and 2 top symmetries of this rotatory transposition mechanism are provided with four and are located bear positioner 3 top burnishing machine tool hand 6, wherein, four bear positioner 3 can with four burnishing machine tool hand 6 is counterpointed in step, and all the other two symmetries are located and go up unloading station and reservation station.

The water separating device 7 comprises a water receiving table 71 which is mounted on the indexing rotary disk 21 and sleeved on the periphery of the driver 51 to isolate the bearing and positioning device 3, and a water receiving tank 72 which is sleeved on the periphery of the indexing rotary disk 21 and used for receiving cooling liquid, wherein a plurality of water-resisting notches 73 which are sleeved on the periphery of the bearing and positioning device 3 are circumferentially distributed on the water receiving table 71; the multi-channel conductive slip ring 52 is connected with the plurality of drivers 51 through a plurality of groups of wire harnesses, and the wire harnesses pass through the slip ring fixing seat 53. A feeding and discharging opening 10 for taking and discharging materials is arranged on one side of the frame 1, an extension cover is arranged on the inner side of the feeding and discharging opening 10 and is arranged on a dustproof face cover plate 11 above the bearing and positioning device 3, and a notch 721 which can rotate along with the rotary transposition mechanism 2 and corresponds to the feeding and discharging opening 10 so as to facilitate installation and disassembly of the workpiece is arranged on one side of the water receiving groove 72.

Adopt water receiving platform 71 cover to establish in the periphery of driver 51 to keep apart driver 51 and bear positioner 3, polishing manipulator 6 is carrying on the work piece on the positioner 3 to bear the weight of like this in the course of working lapping liquid and coolant liquid can not splash to driver 51, realize effective waterproof of distribution module 5, and not only collect the coolant liquid incasement with lapping liquid and coolant liquid through the water receiving tank 72 of cover establishing in indexing rotary disk 21 periphery, also can prevent that lapping liquid and coolant liquid from splashing other positions of frame 1, in order to guarantee the cleanness of frame 1.

Install on the water receiving platform 71 and cover and locate carousel window board 74 on the driver 51, sliding ring fixing base 53 install in on the carousel window board 74, carousel window board 74 inboard still be provided with install in be used for detecting the manometer 45 of this intraductal pressure on the pipeline, just be provided with on the carousel window board 74 and correspond manometer 45 is used for reading manometer 45's perspective window 75. The data of the pressure gauge 45 can be read in time through the perspective window 75 arranged on the inner side of the turntable window plate 74, so that a user can monitor the condition of the gas distribution module 4 according to the pressure gauge 45. The indexing rotary disk 21 is further provided with sets of first through holes 210 for the conduits and the wiring harnesses to extend from within the rotary disk window plate 74 into the carrier positioning means 3. One hole of the first through hole group 210 is positioned in the turntable window plate 74, the other hole is positioned in the bearing positioning device 3, and the pipelines and wiring harnesses of the air distribution module 4 and the power distribution module 5 pass through the first through hole group 210 from the lower end of the indexing rotary disk 21 to be connected with the bearing positioning device 3.

In summary, in the working process of the embodiment, a workpiece to be polished is manually installed on the positioning fixture 33 of the bearing and positioning device 3, the bearing and positioning device 3 is driven by the rotary transposition mechanism 2 to be sequentially transferred to the lower parts of different polishing manipulators 6, the workpiece on the bearing and positioning device 3 is polished by the polishing manipulator 6, and the workpiece is sequentially polished in different processes according to the polishing manipulators 6 at different positions, so that polishing in multiple processes is completed on one piece of equipment; further, after the rotary transposition mechanism 2 drives the bearing and positioning device 3 to rotate for one station, another workpiece to be polished is manually clamped on the next bearing and positioning device 3, the bearing and positioning device 3 is continuously driven to perform transposition along with the rotary transposition mechanism 2, a worker continuously clamps the workpiece to be polished on the bearing and positioning device 3 at the feeding hole and the discharging hole 10, after the workpiece is processed, the rotary transposition mechanism 2 drives the bearing and positioning device 3 to carry the workpiece to return to the feeding hole and the discharging hole 10, and after the workpiece which is processed is manually taken down from the bearing and positioning device 3, the workpiece to be polished is installed on the bearing and positioning device 3 to continuously perform polishing processing, so that continuous automatic feeding and discharging without stopping are realized, and the production efficiency is improved.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a digit control machine tool distribution structure, is including installing distribution module (4) and distribution module (5) that are used for connecting air feed system and power supply system on rotatory transposition mechanism (2), its characterized in that, distribution module (4) including run through install in rotatory transposition mechanism (2) rotation center's cavity gives trachea (41), set up in cavity is given trachea (41) upper end and at least corresponds multichannel air flue adapter plate (42) of connecting an executive component and with can rotatory mode install in cavity is given trachea (41) lower extreme and is used for connecting air feed system's air supply air cock (43) of air supply line.

2. The gas distribution and distribution structure of the numerical control machine tool according to claim 1, characterized in that: and branch air nozzles (44) which correspond to the actuating elements in number and are connected through pipelines are arranged on the multi-path air passage joint plate (42).

3. The gas distribution and distribution structure of the numerical control machine tool according to claim 2, characterized in that: the actuating element is a bearing and positioning device (3), a rotary air distribution rotating shaft (32) used for supporting a workpiece and transmitting aerodynamic force is arranged in the bearing and positioning device (3), and a first air passage (34) penetrating through a rotating center and used for being connected with the branch air nozzle (44) is arranged in the middle of the rotary air distribution rotating shaft (32).

4. The gas distribution and distribution structure of the numerical control machine tool according to claim 3, characterized in that: the rotary air distribution rotating shaft (32) comprises a hollow rotary inner shaft (321), an outer shaft sleeve (322) sleeved on the periphery of the hollow rotary inner shaft (321), at least one air channel groove (323) arranged between the outer shaft sleeve (322) and the hollow rotary inner shaft (321), sealing ring sets (324) arranged on two sides of the air channel groove (323), at least one first air channel (325) arranged in the hollow rotary inner shaft (321) and communicated with the air channel groove (323), at least one second air channel (326) arranged in the outer shaft sleeve (322) and communicated with the air channel groove (323) to communicate with the first air channel (325), and first bearings (327) arranged between the outer shaft sleeve (322) and the hollow rotary inner shaft (321), wherein each first air channel (325), each second air channel (326) and one air channel groove (323) are communicated to form a second air channel.

5. The gas distribution and distribution structure of the numerical control machine tool according to claim 4, characterized in that: the gas distribution module (4) further comprises a pressure gauge (45) which is arranged on a connecting pipeline between the branch gas nozzle (44) and the first gas circuit (34) and is used for detecting the pressure in the pipeline.

6. The gas distribution and distribution structure of the numerical control machine tool according to any one of claims 1 to 5, characterized in that: distribution module (5) still including a plurality of install in on rotatory transposition mechanism (2) and be used for with executive component electric connection's driver (51), set up in rotatory transposition mechanism (2) upper end is used for connecting slip ring (52) are led to multichannel of driver (51) and install in on the rotatory transposition mechanism (2) central rotation axis and be used for supporting slip ring fixing base (53) that the slip ring (52) were led to multichannel, lead on slip ring (52) through the multiunit pencil respectively with a plurality of driver (51) are connected, just the pencil in pass in the middle of slip ring fixing base (53).

7. The gas distribution and distribution structure of the numerical control machine tool according to claim 6, characterized in that: the rotary indexing mechanism (2) comprises an indexing rotary disk (21) which is rotatably arranged on the frame (1) and is used for installing and fixing the actuating elements and a first driving device (22) for driving the indexing rotary disk (21) to rotate, the air distribution module (4) penetrates through the rotation center of the indexing rotary disk (21), a plurality of actuating elements and drivers (51) are uniformly arranged on the indexing rotary disk (21) in the circumferential direction, and the actuating elements and the drivers (51) are equal in number and correspond to each other one by one; the multi-channel conductive slip ring (52) is respectively connected with the drivers (51) through a plurality of groups of wire harnesses, and the wire harnesses penetrate through the middle of the slip ring fixing seat (53).

8. The gas distribution and distribution structure of the numerical control machine tool according to claim 7, characterized in that: the indexing rotary disc (21) is provided with a water receiving table (71) which is sleeved on the periphery of the driver (51) to isolate the actuating element, and a plurality of water-resisting notches (73) which are sleeved on the periphery of the actuating element are circumferentially distributed on the water receiving table (71).

9. The gas distribution and distribution structure of the numerical control machine tool according to claim 8, characterized in that: the periphery of graduation rotary disk (21) still overlaps and is equipped with water receiving tank (72) that is used for accepting the coolant liquid, install on water receiving platform (71) and cover and locate carousel window board (74) on driver (51), slip ring fixing base (53) install in on carousel window board (74), be provided with a plurality of on carousel window board (74) and correspond pressure gauge (45) in distribution module (4) and be used for reading perspective window (75) of this pressure gauge (45).