CN113146321A - Numerical control machine tool angle head slewing mechanism - Google Patents
Numerical control machine tool angle head slewing mechanism Download PDFInfo
- Publication number
- CN113146321A CN113146321A CN202110532172.3A CN202110532172A CN113146321A CN 113146321 A CN113146321 A CN 113146321A CN 202110532172 A CN202110532172 A CN 202110532172A CN 113146321 A CN113146321 A CN 113146321A
- Authority
- CN
- China
- Prior art keywords
- oil
- main shaft
- oil guide
- column
- numerical control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
- B23Q11/122—Lubricant supply devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to the technical field of numerical control machines and discloses a numerical control machine angle head slewing mechanism which comprises a numerical control host, wherein a guide hole is formed in the numerical control host, a main shaft is arranged in the guide hole, and oil supplementing devices are symmetrically arranged in the guide hole; the oil supplementing device comprises an oil storage cavity, the oil storage cavity is arranged in the numerical control main machine, lubricating oil is arranged in the oil storage cavity, an oil guide pipe is embedded on the wall, close to the main shaft, of the oil storage cavity, the oil guide pipe is close to the wall, close to the bottom of the oil storage cavity, of the cavity, an oil guide column is connected into the oil guide pipe through a sealing assembly in a sliding mode, the two ends of the oil guide column penetrate through the oil guide pipe and extend outwards, and a supporting assembly is arranged at one end, close to the main shaft, of the oil guide column. This digit control machine tool angle head rotation mechanism, along with the rotation of main shaft, the indirectness nature of oil storage intracavity is to the guide hole in replenishing, lubricates the main shaft, and lubricating oil consumes less, and lubricating oil existence time is longer, and disposable replenishment can lubricate for a long time, has improved the life of main shaft.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to an angle head slewing mechanism of a numerical control machine.
Background
The numerical control machine tool can realize five-surface processing of mechanical parts by configuring various accessory angle heads, and can finish all or most of processing procedures of the mechanical parts by one-time clamping, thereby greatly improving the production efficiency. Meanwhile, multiple clamping is avoided, so that errors caused by multiple clamping are eliminated, and the machining precision is improved and ensured. And the numerical control machine tool needs to automatically finish the five-surface machining of the workpiece, and the angle head can directly cut multiple surfaces of the workpiece by turning.
The retrieval publication (announcement) number CN206883281U discloses a pentahedral numerical control machine tool angle head slewing mechanism, which is simple, compact and reasonable in structure, low in cost and beneficial to expansion of a processing range on the premise of ensuring that the angle head realizes slewing when in use; the scheme still has the following technical defects:
the main shaft rotates for a long time, abrasion is easily caused between the main shaft and a machine tool due to long-time rotation friction, and the lubricating state cannot be kept for a long time by singly adding lubricating oil every time, so that the service life of the main shaft is shortened.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a numerical control machine tool angle head slewing mechanism which has the advantage of prolonging the service life of a main shaft and solves the problems that the existing main shaft rotates for a long time, the abrasion is easily caused between the main shaft and a machine tool due to long-time rotation friction, and the lubricating state cannot be kept for a long time due to single addition of lubricating oil every time, so that the service life of the main shaft is shortened.
(II) technical scheme
In order to realize the purpose of prolonging the service life of the main shaft, the invention provides the following technical scheme: a numerical control machine tool angle head slewing mechanism comprises a numerical control host, wherein a guide hole is formed in the numerical control host, a main shaft is installed in the guide hole, and oil supplementing devices are symmetrically arranged in the guide hole;
the oil supplementing device comprises an oil storage cavity, the oil storage cavity is arranged in the numerical control main machine, lubricating oil is arranged in the oil storage cavity, an oil guide pipe is inlaid on the wall of the oil storage cavity close to the main shaft, the oil guide pipe is close to the wall of the oil storage cavity close to the bottom of the oil storage cavity, an oil guide column is connected in the oil guide pipe in a sliding mode through a sealing assembly, two ends of the oil guide column penetrate through the oil guide pipe and extend outwards, a supporting assembly is arranged at one end, close to the main shaft, of the oil guide column, an L-shaped oil guide hole is formed in the oil guide column, the oil inlet end of the oil guide hole is arranged on the sealing assembly, the oil outlet end of the oil guide hole is arranged at one end, close to the main shaft, an arc-shaped top block is fixedly connected to the shaft wall of the main shaft, the top block and the two supporting assemblies are located on the same horizontal straight line, a spring is fixedly connected to one end, far away from the main shaft, and a U-shaped supporting frame is fixedly connected to the other end of the spring, the support frame is fixedly connected to the wall of the oil storage cavity.
Preferably, the seal assembly includes an annular seal groove, the seal groove is opened on the inner pipe wall of the oil guide pipe, the seal groove is internally and fixedly connected with a seal ring made of rubber, the inner ring wall of the seal ring passes through the notch of the seal groove and is arranged on the column wall of the oil guide column, the oil guide column is in sliding connection with the inner ring wall of the seal ring, and the oil inlet end of the oil guide hole is arranged on the inner ring wall of the seal ring.
Preferably, the supporting assembly comprises a supporting groove, the supporting groove is formed in one end, far away from the spring, of the oil guide column, rolling balls are arranged in the supporting groove, and the balls penetrate through a notch of the supporting groove.
Preferably, the cavity top of oil storage chamber is opened and is equipped with the oil supply hole, sliding connection has the graduated tube in the oil supply hole, and the both ends of graduated tube pass the oil supply hole and outwards extend, fixed the cup jointing has the kickboard on the pipe wall that the graduated tube is close to lower extreme position, and the kickboard sets up on the oil level of lubricating oil.
Preferably, lead the one end center department fixedly connected with gag lever post that the main shaft was kept away from to the oil column, the one end center department that the main shaft was kept away from to the support frame has seted up spacing hole corresponding gag lever post position, the one end that the oil column was kept away from to the gag lever post passes spring and spacing hole in proper order and outwards extends.
Preferably, the ball has a ball diameter larger than a groove diameter of the support groove opening.
Preferably, a pipe cover is installed on the upper end pipe orifice of the graduated pipe.
(III) advantageous effects
Compared with the prior art, the invention provides a numerical control machine tool angle head slewing mechanism, which has the following beneficial effects:
this digit control machine tool angle head rotation mechanism, through setting up the oil supplementing device, when the main shaft rotates, the main shaft drives the kicking block and rotates in step, when the kicking block contacts with supporting component, promote and lead oil column compression spring and at the seal assembly internal motion of leading oil pipe, when the inlet end of leading the oilhole enters into the oil storage intracavity, the lubricating oil of oil storage intracavity gets into and leads in the oilhole, along with the rotation of main shaft, the indirect guide hole internal replenishment of lubricating oil in the oil storage intracavity, lubricate the main shaft, lubricating oil consumption still less, lubricating oil existence time is longer, disposable replenishment can lubricate for a long time, the life of main shaft has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a turning mechanism of an angle head of a numerically-controlled machine tool according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is an enlarged view of a portion C in fig. 2.
In the figure: 1. a numerical control host; 2. a guide hole; 3. a main shaft; 4. an oil storage chamber; 5. lubricating oil; 6. an oil guide pipe; 7. an oil guide column; 8. an oil guide hole; 9. a top block; 10. a spring; 11. a support frame; 12. a sealing groove; 13. a seal ring; 14. a support groove; 15. a ball bearing; 16. an oil supplement hole; 17. a graduated tube; 18. a floating plate; 19. a limiting rod; 20. and a limiting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a numerical control machine tool angle head swing mechanism includes a numerical control main machine 1, a guide hole 2 is provided in the numerical control main machine 1, a main shaft 3 is installed in the guide hole 2, and oil supplementing devices are symmetrically provided in the guide hole 2;
the oil supplementing device comprises an oil storage cavity 4, the oil storage cavity 4 is arranged in the numerical control main machine 1, lubricating oil 5 is arranged in the oil storage cavity 4, an oil guide pipe 6 is embedded on the cavity wall of the oil storage cavity 4 close to the main shaft 3, the oil guide pipe 6 is close to the cavity wall of the oil storage cavity 4 close to the cavity bottom, an oil guide column 7 is connected in the oil guide pipe 6 in a sliding mode through a sealing assembly, two ends of the oil guide column 7 penetrate through the oil guide pipe 6 and extend outwards, a supporting assembly is arranged at one end, close to the main shaft 3, of the oil guide column 7, an L-shaped oil guide hole 8 is formed in the oil guide column 7, the oil inlet end of the oil guide hole 8 is arranged on the sealing assembly, the oil outlet end of the oil guide hole 8 is arranged at one end, close to the main shaft 3, of the oil guide column 7, an arc-shaped top block 9 is fixedly connected to the shaft wall of the main shaft 3, the top block 9 and the two supporting assemblies are located on the same horizontal straight line, a spring 10 is fixedly connected to one end, far away from the main shaft 3, of the oil guide column 7, the other end of the spring 10 is fixedly connected with a U-shaped supporting frame 11, the supporting frame 11 is fixedly connected on the cavity wall of the oil storage cavity 4, when the main shaft 3 rotates, the main shaft 3 drives the top block 9 to synchronously rotate, when the top block 9 is contacted with the supporting assembly, the oil guide column 7 is pushed to compress the spring 10 and move in the sealing assembly of the oil guide pipe 6, when the oil inlet end of the oil guide hole 8 enters the oil storage cavity 4, the lubricating oil in the oil storage cavity 4 enters the oil guide hole 8 and flows into the guide hole 2 through the oil outlet end of the oil guide hole 8 to lubricate the main shaft 3, when the top block 9 is separated from the supporting assembly, the compressed spring 10 pushes the oil guide column 7 to reset, when the oil inlet end of the oil guide hole 8 on the oil guide column 7 resets into the sealing assembly, the lubricating oil 5 in the oil storage cavity 4 stops supplementing to the guide hole 8, and along with the rotation of the main shaft 3, the lubricating oil 5 in the oil storage cavity 4 indirectly supplements to the guide hole 23, the main shaft 3 is lubricated, the consumption of the lubricating oil 5 is less, the existence time of the lubricating oil 5 is longer, the lubricating oil can be lubricated for a long time by one-time supplement, and the service life of the main shaft 3 is prolonged.
Seal assembly includes annular seal groove 12, seal groove 12 is seted up on leading oil pipe 6's inner tube wall, fixedly connected with rubber's sealing ring 13 in seal groove 12, the inner ring wall of sealing ring 13 passes the notch of seal groove 12 and sets up on leading oil column 7's column wall, lead oil column 7 and sealing ring 13's inner ring wall sliding connection, the oil feed end setting of leading oilhole 8 is on sealing ring 13's inner ring wall, the leakproofness between leading oil column 7 and leading oil pipe 6 has been improved through sealing ring 13.
The supporting component comprises a supporting groove 14, the supporting groove 14 is formed in one end, far away from the spring 10, of the oil guide column 7, a rolling ball 15 is arranged in the supporting groove 14, the ball 15 penetrates through a notch of the supporting groove 14, and along with rotation of the spindle 3, when the top block 9 is in contact with the ball 15, the oil guide column 7 compresses the spring 10, and friction force generated when the top block 9 is in contact with the oil guide column 7 is reduced.
The cavity of oil storage chamber 4 is backed up and is equipped with oil supply hole 16, sliding connection has graduated tube 17 in the oil supply hole 16, and the both ends of graduated tube 17 pass oil supply hole 16 and outwards extend, graduated tube 17 is close to fixed cover on the pipe wall of lower extreme position and has been connect floating plate 18, and floating plate 18 sets up on the oil level of lubricating oil 5, floating plate 18 floats on the oil level of lubricating oil 5, floating plate 18 drives graduated tube 17 synchronous motion in oil supply hole 16 along with the change of 5 oil levels of lubricating oil, through exposing the scale scope of graduated tube 17 in the oil supply hole 16, can audio-visually learn the surplus of lubricating oil 5 in the oil storage chamber 4, and can directly supply lubricating oil 5 in the oil storage chamber 4 through graduated tube 17.
The ball 15 has a larger spherical diameter than the groove diameter of the notch of the support groove 14, preventing the ball 15 from slipping out of the support groove 14.
The pipe cover is installed at the upper end pipe orifice of the graduated pipe 17, and dust is prevented from entering the lubricating oil 5 through the graduated pipe 17 through the pipe cover.
To sum up, in the angle head slewing mechanism of the numerical control machine, when the main shaft 3 rotates, the main shaft 3 drives the top block 9 to synchronously rotate, when the top block 9 contacts with the supporting component, the oil guide column 7 is pushed to compress the spring 10 and move in the sealing component of the oil guide pipe 6, when the oil inlet end of the oil guide hole 8 enters the oil storage cavity 4, the lubricating oil in the oil storage cavity 4 enters the oil guide hole 8 and flows into the guide hole 2 through the oil outlet end of the oil guide hole 8 to lubricate the main shaft 3, when the top block 9 is separated from the supporting component, the compressed spring 10 pushes the oil guide column 7 to reset, when the oil inlet end of the oil guide hole 8 on the oil guide column 7 resets into the sealing component, the lubricating oil 5 in the oil storage cavity 4 stops supplementing into the guide hole 8, along with the rotation of the main shaft 3, the lubricating oil 5 in the oil storage cavity 4 indirectly supplements into the guide hole 23 to lubricate the main shaft 3, the main shaft 5 is less consumed, the lubricating oil 5 has longer existence time, can lubricate for a long time by one-time supplement, and improves the service life of the main shaft 3.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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.
Claims (7)
1. The utility model provides a digit control machine tool angle head rotation mechanism, includes numerical control host (1), be equipped with guide hole (2) in numerical control host (1), install main shaft (3), its characterized in that in guide hole (2): oil supplementing devices are symmetrically arranged in the guide holes (2);
the oil supplementing device comprises an oil storage cavity (4), the oil storage cavity (4) is arranged in the numerical control host (1), lubricating oil (5) is arranged in the oil storage cavity (4), the oil storage cavity (4) is embedded with an oil guide pipe (6) on the wall of the cavity close to the main shaft (3), the oil guide pipe (6) is close to the wall of the cavity close to the bottom of the oil storage cavity (4), an oil guide column (7) is connected in the oil guide pipe (6) in a sliding mode through a sealing assembly, the two ends of the oil guide column (7) penetrate through the oil guide pipe (6) and extend outwards, one end, close to the main shaft (3), of the oil guide column (7) is provided with a support assembly, an oil guide hole (8) in an L shape is formed in the oil guide column (7), the oil inlet end of the oil guide hole (8) is arranged on the sealing assembly, the oil outlet end of the oil guide hole (8) is arranged at one end, close to the main shaft (3), of the oil guide column (7), arc-shaped ejector block (9) is fixedly connected to the shaft wall of main shaft (3), and ejector block (9) and two supporting components are located same horizontal straight line, lead one end fixedly connected with spring (10) that main shaft (3) were kept away from in oil column (7), the other end fixedly connected with of spring (10) is support frame (11) of "U" type, support frame (11) fixed connection is on the chamber wall of oil storage chamber (4).
2. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 1, wherein: the sealing assembly comprises an annular sealing groove (12), the sealing groove (12) is formed in the inner wall of the oil guide pipe (6), a sealing ring (13) made of rubber is fixedly connected into the sealing groove (12), the inner annular wall of the sealing ring (13) penetrates through a groove opening of the sealing groove (12) and is arranged on the column wall of the oil guide column (7), the oil guide column (7) is connected with the inner annular wall of the sealing ring (13) in a sliding mode, and the oil inlet end of the oil guide hole (8) is arranged on the inner annular wall of the sealing ring (13).
3. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 1, wherein: the supporting assembly comprises a supporting groove (14), the supporting groove (14) is formed in one end, far away from the spring (10), of the oil guide column (7), rolling balls (15) are arranged in the supporting groove (14), and the balls (15) penetrate through notches of the supporting groove (14).
4. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 1, wherein: the cavity of oil storage chamber (4) is backed down and is equipped with oil supply hole (16), sliding connection has graduated tube (17) in oil supply hole (16), and the both ends of graduated tube (17) pass oil supply hole (16) and outwards extend, fixed cover on the pipe wall that graduated tube (17) are close to the lower extreme position has been cup jointed kickboard (18), and kickboard (18) set up on the oil level of lubricating oil (5).
5. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 1, wherein: lead oil column (7) and keep away from one end center department fixedly connected with gag lever post (19) of main shaft (3), the one end center department that main shaft (3) were kept away from in support frame (11) has seted up spacing hole (20) corresponding the position of gag lever post (19), spring (10) and spacing hole (20) are passed in proper order and outwards extend to the one end that oil column (7) were kept away from in gag lever post (19).
6. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 3, wherein: the ball diameter of the ball (15) is larger than the groove diameter of the notch of the support groove (14).
7. The turning mechanism of angle head of numerically controlled machine tool as claimed in claim 4, wherein: and a pipe cover is arranged on the pipe orifice at the upper end of the graduated pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110532172.3A CN113146321A (en) | 2021-05-17 | 2021-05-17 | Numerical control machine tool angle head slewing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110532172.3A CN113146321A (en) | 2021-05-17 | 2021-05-17 | Numerical control machine tool angle head slewing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113146321A true CN113146321A (en) | 2021-07-23 |
Family
ID=76876054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110532172.3A Withdrawn CN113146321A (en) | 2021-05-17 | 2021-05-17 | Numerical control machine tool angle head slewing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113146321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029434A (en) * | 2021-12-24 | 2022-02-11 | 容德精机（江苏）机床有限公司 | Environment-friendly metal forming machine tool equipment with automatic lubricating function |
-
2021
- 2021-05-17 CN CN202110532172.3A patent/CN113146321A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029434A (en) * | 2021-12-24 | 2022-02-11 | 容德精机（江苏）机床有限公司 | Environment-friendly metal forming machine tool equipment with automatic lubricating function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113146321A (en) | Numerical control machine tool angle head slewing mechanism | |
| CN218935033U (en) | Numerical control machine tool linear guide rail pair capable of self-lubricating | |
| CN106123749A (en) | A kind of simple multifunctional circularity detection device | |
| CN112414350A (en) | Automatic detection equipment for inner diameter of bearing | |
| CN117091063B (en) | Bearing automatic lubrication regulation and control method, system and device | |
| CN210375698U (en) | Device for checking flexibility of bearing | |
| CN100368150C (en) | Processing method of ring kind part circumcircle and its device | |
| CN214623640U (en) | Rotary disc device for writing chip data | |
| CN213530791U (en) | Mechatronic lathe with fat liquoring structure | |
| CN212957925U (en) | Swing early warning device for high-voltage iron tower | |
| CN220870583U (en) | Vertical sliding bearing is with mending oily structure | |
| CN208205999U (en) | Inner race spherical curvature cubing | |
| CN207864430U (en) | A kind of high-accuracy linear track of machining center | |
| CN202846151U (en) | Rotating disc type multi-position pen point automatic machining tool | |
| CN113218347A (en) | Device for coaxially assembling and measuring rotating member | |
| CN202194849U (en) | Device utilizing oil groove to automatically lubricate vertical pump bearing | |
| CN113669186B (en) | Automatic adjusting structure for opening degree of guide vane of model water turbine | |
| CN221280660U (en) | Horizontal loading antifriction bearing life test experiment table | |
| CN213812009U (en) | Bearing physical parameter detection device | |
| CN214308658U (en) | Bearing precision detection device | |
| CN205465223U (en) | Worm gear driven air supporting revolving stage | |
| CN217530218U (en) | Tool deflection measuring device | |
| CN219026637U (en) | Machining center for smooth machining | |
| CN219521378U (en) | Tool magazine driving structure | |
| CN220816263U (en) | Guide rail slider with self-lubricating function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210723 |