A submerged rotating single axis

Abstract

The present application provides a submerged rotating single axis, which relates to the technical field of electric spark forming machines, including: a main sealing cover is provided on one side of a box body; a driving mechanism is located inside the box body, and a harmonic reducer is installed at the output end; a transmission mechanism includes a rotating main shaft; a fixed seat and an air circuit adapter are respectively sleeved on the rotating main shaft; the fixed seat is connected to the air circuit adapter and the harmonic reducer; the air circuit adapter is connected to the fixed seat and the main sealing cover; a protection mechanism includes an air inlet pipe and an oil drain pipe; the air inlet pipe is respectively connected to the fixed seat and the air circuit adapter and communicates with the inner cavity of the box body; one end of the oil drain pipe extends to the bottom of the inner cavity of the box body, and a vacuum generator is installed at the other end; the fixed seat and the main sealing cover are connected through the air circuit adapter, and the connection between the fixed seat and the harmonic reducer is coordinated to form not only a shaft sleeve for the rotating main shaft, but also a sealing structure; the positive pressure protection of the box body seal and the positive pressure protection at the main sealing cover can be effectively realized.

Description

Technical Field

[0001] The present application relates to the technical field of electric spark forming machines, and in particular to a water-immersed rotating single axis. Background Art

[0002] The processing technology of EDM forming machine is oil immersion processing, so many forming machine equipment needs to be installed with high-precision oil-immersed rotating axes that can meet IP68 to meet the processing of workpieces.

[0003] Currently, the protection mechanism for leakage inside the submerged rotating shaft only has a sensor that senses the leakage level, and it will only respond when the leakage detects water accumulation. There are no countermeasures for preventing multiple leak-prone points or dealing with minor leaks; therefore, the above problems need to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a submerged rotating single shaft.

[0005] The present application provides a submerged rotating single shaft, comprising

[0006] A box body, one side of which is provided with a main sealing cover for mounting a chuck;

[0007] A driving mechanism, wherein the driving mechanism is located inside the box and a harmonic reducer is installed at the output end;

[0008] A transmission mechanism, the transmission mechanism comprising a rotating spindle for connecting the harmonic reducer and the chuck;

[0009] The rotating main shaft is respectively provided with a fixing seat and a gas path adapter seat;

[0010] One end of the fixing seat is connected to the gas path adapter seat, and the other end is connected to the harmonic reducer, so as to form a seal between the driving mechanism and the transmission mechanism;

[0011] One end of the gas path adapter is connected to the fixed seat, and the other end is connected to the main sealing cover, and is used to supply gas to the chuck;

[0012] A protection mechanism, the protection mechanism comprising an air intake pipe and an oil drain pipe;

[0013] The air inlet pipe includes three output ends, which are respectively connected to the fixing seat and the air path adapter seat, and communicated with the inner cavity of the box body to form positive pressure protection;

[0014] One end of the oil drain pipe extends to the bottom of the inner cavity of the box body, and one end is equipped with a vacuum generator.

[0015] Furthermore,

[0016] The air path adapter is provided with a docking port corresponding to the air inlet pipe;

[0017] The docking port is L-shaped, the input end is located on one side of the gas path adapter in the radial direction, and the output end is located at one end of the gas path adapter close to the main sealing cover.

[0018] Furthermore,

[0019] The outer wall of the gas path adapter is provided with a first gas supply port and a second gas supply port arranged along the axial direction, and the inner wall is provided with an annular groove;

[0020] The first air supply port and the second air supply port are through holes respectively, and the extending direction is parallel to the radial direction of the air path adapter;

[0021] The number of the annular grooves includes three, which are arranged alternately between the first air supply port and the second air supply port;

[0022] A sealing ring is also installed in the annular groove for abutting and sealing against the rotating main shaft.

[0023] Furthermore,

[0024] Independent flow channel holes are respectively provided inside the rotating main shaft corresponding to the first air supply port and the second air supply port;

[0025] The input end of the flow channel hole is located between two adjacent sealing rings, and the output end is located at one end of the rotating main shaft close to the chuck.

[0026] Furthermore,

[0027] The chuck is connected to the rotating spindle via a chuck connecting plate;

[0028] The chuck connecting plate is fixedly mounted on the end of the rotating main shaft and is rotatably connected to the main sealing cover;

[0029] One end of the main sealing cover away from the rotating main shaft is provided with a rotating lip sealing ring corresponding to the clamp connecting plate, which is used to form a seal with the clamp connecting plate.

[0030] Furthermore,

[0031] The chuck connecting plate is provided with matching connecting holes corresponding to the two flow channel holes;

[0032] The chuck is installed with the chuck connecting plate via a chuck mounting plate;

[0033] One end of the chuck mounting plate is fixedly connected to the chuck connecting plate, and the other end is fixedly connected to the chuck, and an air inlet hole for connecting the connecting hole and the chuck is provided inside.

[0034] Furthermore,

[0035] The rotating main shaft is a stepped shaft, the end close to the harmonic reducer has a relatively small diameter, and is connected to the fixed seat through a bearing;

[0036] The docking position between the fixing seat and the gas path adapter seat is located at the diameter change position of the rotating main shaft.

[0037] Furthermore,

[0038] A mounting frame is provided at one end of the harmonic reducer away from the rotating main shaft;

[0039] A motor is fixedly mounted on the mounting frame;

[0040] The motor is located below the harmonic reducer, and an output end is connected to the harmonic reducer through a synchronous belt.

[0041] Furthermore,

[0042] The side of the box body away from the main sealing cover is an open structure, and a rear sealing cover is detachably installed;

[0043] A sealing ring is embedded in the rear sealing cover to form a seal with the box body.

[0044] Furthermore,

[0045] The top of the box body is also provided with a through hole;

[0046] The through hole is located at a side of the box body away from the main sealing cover, and is used for the air intake pipe and the oil drain pipe to pass through.

[0047] The advantages and positive effects of this application are:

[0048] This technical solution connects the fixed seat and the main sealing cover through the air path adapter, and cooperates with the connection between the fixed seat and the harmonic reducer, which not only forms a sleeve for the rotating main shaft, but also forms a sealing structure; combined with the independent air supply of the intake pipe, it can effectively realize the positive pressure protection of the box seal and the positive pressure protection at the main sealing cover; at the same time, it can also use the positive pressure to accelerate the discharge of the leaked oil after the oil leak, so that the oil can be discharged immediately through the drain pipe for easy detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of the structure of a submerged rotating single shaft provided in an embodiment of the present application;

[0050] Figure 2 A schematic structural diagram of a cross-sectional view of a submerged rotating single axis provided in an embodiment of the present application;

[0051] Figure 3A schematic structural diagram of the air path adapter for a submerged rotating single axis provided in an embodiment of the present application.

[0052] The text markings in the figure are as follows: 100-housing; 110-main sealing cover; 120-chuck; 130-rear sealing cover; 200-harmonic reducer; 210-mounting frame; 220-motor; 230-synchronous belt; 300-rotating main shaft; 310-fixed seat; 320-air circuit adapter seat; 321-docking port; 322-first air supply port; 323-second air supply port; 330-chuck connecting plate; 340-rotating lip seal ring; 350-chuck mounting plate; 400-intake pipe; 410-oil drain pipe; 411-vacuum generator. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application.

[0054] Please refer to Figure 1-3 The present embodiment provides a submerged rotating single shaft, comprising a housing 100, a main sealing cover 110 is provided on one side of the housing 100 for mounting a chuck 120; a driving mechanism, the driving mechanism is located inside the housing 100, and a harmonic reducer 200 is installed at the output end; a transmission mechanism, the transmission mechanism comprises a rotating main shaft 300 for connecting the harmonic reducer 200 and the chuck 120; a fixing seat 310 and an air path adapter seat 320 are respectively sleeved on the rotating main shaft 300; one end of the fixing seat 310 is connected to the air path adapter seat 320, and the other end is connected to the harmonic reducer 2 00 is connected to form a seal between the driving mechanism and the transmission mechanism; one end of the air circuit adapter 320 is connected to the fixed seat 310, and the other end is connected to the main sealing cover 110, for supplying air to the chuck; a protection mechanism, the protection mechanism includes an air inlet pipe 400 and an oil drain pipe 410; the air inlet pipe 400 includes three output ends, which are respectively connected to the fixed seat 310 and the air circuit adapter 320, and are connected to the inner cavity of the box body 100, for forming positive pressure protection; one end of the oil drain pipe 410 extends to the bottom of the inner cavity of the box body 100, and a vacuum generator 411 is installed at one end.

[0055] In this embodiment, the chuck 120 is installed on the outside of the box body 100 through the rotating main shaft 300, and the joint with the box body 100 is sealed by the main sealing cover 110; the rotating main shaft 300 is connected to the box body 100 through the fixed seat 310, and the end away from the chuck 120 is driven and connected to the harmonic reducer 200.

[0056] In this embodiment, one end of the fixed seat 310 is fixed and sealed to the harmonic reducer 200 through a flange, and the other end is connected to the main sealing cover 110 through the air path adapter 320; the air path adapter 320 is sleeved on the rotating main shaft 300, one end is attached to and sealed with the main sealing cover 110, and the other end is abutted against the end of the fixed seat 310.

[0057] In this embodiment, the air inlet pipe 400 passes through the box body 100, the input end is connected to the high-pressure air source, and the output end is connected to the fixing seat 310, the air circuit adapter seat 320, and the inner cavity of the box body 100 through a three-way connection; wherein the connection with the inner cavity of the box body 100 can form a positive pressure inside the box body 100, so that the sealing ring on the box body offsets the external hydraulic pressure and improves the sealing effect; the connection with the air circuit adapter seat 320 can form a positive pressure at the connection between the main sealing cover 110 and the box body 100, thereby improving the sealing effect.

[0058] In this embodiment, a first oil drain hole is also provided at the bottom of the gas circuit adapter 320; one end of the first oil drain hole is connected to the positive pressure protection area between the gas circuit adapter 320 and the main sealing cover 110, and the other end is connected to the inner cavity of the box body 100, so as to maintain positive pressure protection and quickly discharge oil after leakage occurs; at the same time, a second oil drain hole is also provided at the bottom of the fixed seat 310. When the oil leakage between the gas circuit adapter 320 and the main sealing cover 110 cannot be discharged quickly, the oil will continue to flow into the fixed seat 310. At this time, the second oil drain hole can assist in oil drainage, thereby avoiding entering the harmonic reducer 200.

[0059] In this embodiment, an oil drain pipe 410 connecting the inside and the outside is further provided on the box body 100; the input end of the oil drain pipe 410 is located inside the box body 100 and extends to the bottom of the box body 100, and the output end is located outside the box body 100 and is installed with a vacuum generator 411. When oil leakage occurs inside the box body 100, it can be discharged to the outside immediately, so that workers can find it easily.

[0060] In this embodiment, a liquid level sensor is further provided inside the box body 100. The height detected by the liquid level sensor is relatively higher than the oil discharge height of the oil discharge pipe 410. When the oil leakage speed exceeds the oil discharge speed, the liquid level will rise, thereby triggering the alarm of the liquid level sensor.

[0061] In a preferred embodiment, a docking port 321 is provided on the gas circuit adapter 320 corresponding to the air inlet pipe 400; the docking port 321 is L-shaped, with the input end located on one side of the gas circuit adapter 320 along the radial direction, and the output end located at one end of the gas circuit adapter 320 close to the main sealing cover 110.

[0062] In a preferred embodiment, a first air supply port 322 and a second air supply port 323 arranged along the axial direction are provided on the outer wall of the air circuit adapter 320, and an annular groove is provided on the inner wall; the first air supply port 322 and the second air supply port 323 are respectively through holes, and the extension direction is parallel to the radial direction of the air circuit adapter 320; the number of the annular grooves includes three, which are alternately arranged between the first air supply port 322 and the second air supply port 323; a sealing ring is also installed in the annular groove for abutting and sealing with the rotating main shaft 300.

[0063] In this embodiment, the first air supply port 322 and the second air supply port 323 are respectively connected to an external high-pressure air source through a hose, so as to independently supply air for the switching and detection of the chuck 120 .

[0064] In a preferred embodiment, independent flow holes are respectively provided inside the rotating spindle 300 corresponding to the first air supply port 322 and the second air supply port 323; the input end of the flow hole is located between two adjacent sealing rings, and the output end is located at one end of the rotating spindle 300 close to the chuck 120.

[0065] In a preferred embodiment, the chuck 120 is connected to the rotating main shaft 300 via a chuck connecting plate 330; the chuck connecting plate 330 is fixedly installed at the end of the rotating main shaft 300 and is rotationally connected to the main sealing cover 110; a rotating lip sealing ring 340 is provided at one end of the main sealing cover 110 away from the rotating main shaft 300 corresponding to the chuck connecting plate 330, which is used to form a seal with the chuck connecting plate 330.

[0066] In a preferred embodiment, matching connection holes are respectively provided on the chuck connecting plate 330 corresponding to the two flow channel holes; the chuck 120 is installed on the chuck connecting plate 330 through the chuck mounting plate 350; one end of the chuck mounting plate 350 is fixedly connected to the chuck connecting plate 330, and the other end is fixedly connected to the chuck 120, and an air inlet hole is provided inside for connecting the connection hole and the chuck 120.

[0067] In a preferred embodiment, the rotating main shaft 300 is a stepped shaft, the end close to the harmonic reducer 200 has a relatively small diameter, and is connected to the fixed seat 310 through a bearing; the docking position between the fixed seat 310 and the air path adapter 320 is at the diameter change point of the rotating main shaft 300.

[0068] In this embodiment, the rotating main shaft 300 and the fixed seat 310 are connected via bearings. There are two bearings, which are respectively sleeved on the diameter-changing parts of the rotating main shaft 300 .

[0069] In a preferred embodiment, a mounting frame 210 is provided at one end of the harmonic reducer 200 away from the rotating main shaft 300; a motor 220 is fixedly mounted on the mounting frame 210; the motor 220 is located below the harmonic reducer 200, and the output end is connected to the harmonic reducer 200 through a synchronous belt 230.

[0070] In this embodiment, the extension direction of the mounting frame 210 is perpendicular to the axial direction of the rotating main shaft 300; the motor 220 is fixedly mounted on the mounting frame 210 and is located below the harmonic reducer 200, and is connected to the harmonic reducer 200 through a synchronous belt 230.

[0071] In a preferred embodiment, the side of the box body 100 away from the main sealing cover 110 is an open structure, and a rear sealing cover 130 is detachably installed; a sealing ring is embedded in the rear sealing cover 130 to form a seal with the box body 100.

[0072] In this embodiment, the rear sealing cover 130 is detachably connected to the box body 100 and fixed by bolts; matching threaded holes are provided at the four corners of the box body 100 corresponding to the bolts; and matching through holes are provided on the rear sealing cover 130 corresponding to the bolts.

[0073] In a preferred embodiment, a through hole is further provided on the top of the box body 100; the through hole is located at a side of the box body 100 away from the main sealing cover 110, and is used for the air intake pipe 400 and the oil drain pipe 410 to pass through.

[0074] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A submerged rotating single axis, characterized in that: include: A box body (100), wherein a main sealing cover (110) is provided on one side of the box body (100) for mounting a chuck (120); A driving mechanism, the driving mechanism being located inside the housing (100), and having a harmonic reducer (200) installed at the output end; A transmission mechanism, the transmission mechanism comprising a rotating main shaft (300) for connecting the harmonic reducer (200) and the chuck (120); The rotating main shaft (300) is respectively provided with a fixing seat (310) and a gas path adapter seat (320); One end of the fixing seat (310) is connected to the gas path adapter seat (320), and the other end is connected to the harmonic reducer (200), so as to form a seal between the driving mechanism and the transmission mechanism; One end of the air path adapter seat (320) is connected to the fixing seat (310), and the other end is connected to the main sealing cover (110), and is used to supply air to the chuck; A protection mechanism, the protection mechanism comprising an air intake pipe (400) and an oil drain pipe (410); The air inlet pipe (400) comprises three output ends, which are respectively connected to the fixing seat (310) and the air path adapter seat (320), and communicate with the inner cavity of the box body (100) to form positive pressure protection; One end of the oil drain pipe (410) extends to the bottom of the inner cavity of the box body (100), and one end is equipped with a vacuum generator (411); A liquid level sensor is also provided inside the box body (100); the detection height of the liquid level sensor is relatively higher than the height of the input end of the oil drain pipe (410).

2. The submerged rotating single shaft according to claim 1, characterized in that: The gas path adapter (320) is provided with a docking port (321) corresponding to the air inlet pipe (400); The docking port (321) is L-shaped, with an input end located on one side of the gas path adapter (320) in the radial direction, and an output end located on an end of the gas path adapter (320) close to the main sealing cover (110).

3. The submerged rotating single shaft according to claim 2, characterized in that: The outer wall of the gas path adapter (320) is provided with a first gas supply port (322) and a second gas supply port (323) arranged along the axial direction, and the inner wall is provided with an annular groove; The first air supply port (322) and the second air supply port (323) are respectively through holes, and the extending direction is parallel to the radial direction of the air path adapter (320); The number of the annular grooves includes three, which are arranged alternately between the first air supply port (322) and the second air supply port (323); A sealing ring is also installed in the annular groove, and is used for abutting and sealing with the rotating main shaft (300).

4. The submerged rotating single shaft according to claim 3, characterized in that: Independent flow channel holes are respectively provided inside the rotating main shaft (300) corresponding to the first air supply port (322) and the second air supply port (323); The input end of the flow channel hole is located between two adjacent sealing rings, and the output end is located at one end of the rotating main shaft (300) close to the chuck (120).

5. The submerged rotating single shaft according to claim 4, characterized in that: The chuck (120) and the rotating spindle (300) are connected via a chuck connecting plate (330); The chuck connecting plate (330) is fixedly mounted on the end of the rotating main shaft (300) and is rotatably connected to the main sealing cover (110); One end of the main sealing cover (110) away from the rotating main shaft (300) is provided with a rotating lip sealing ring (340) corresponding to the chuck connecting plate (330) for forming a seal with the chuck connecting plate (330).

6. The submerged rotating single shaft according to claim 5, characterized in that: Matching connection holes are respectively provided on the clamp connection plate (330) corresponding to the two flow channel holes; The chuck (120) is mounted on the chuck connecting plate (330) via a chuck mounting plate (350); One end of the chuck mounting plate (350) is fixedly connected to the chuck connecting plate (330), and one end is fixedly connected to the chuck (120), and an air inlet hole for connecting the connecting hole and the chuck (120) is provided inside.

7. The submerged rotating single shaft according to claim 1, characterized in that: The rotating main shaft (300) is a stepped shaft, the end close to the harmonic reducer (200) has a relatively small diameter, and is connected to the fixed seat (310) via a bearing; The docking position of the fixing seat (310) and the gas path adapter seat (320) is located at the diameter change position of the rotating main shaft (300).

8. The submerged rotating single shaft according to claim 1, characterized in that: A mounting frame (210) is provided at one end of the harmonic reducer (200) away from the rotating main shaft (300); A motor (220) is fixedly mounted on the mounting frame (210); The motor (220) is located below the harmonic reducer (200), and an output end is connected to the harmonic reducer (200) via a synchronous belt (230).

9. The submerged rotating single shaft according to claim 1, characterized in that: The side of the box body (100) away from the main sealing cover (110) is an open structure, and a rear sealing cover (130) is detachably installed thereon; A sealing ring is embedded in the rear sealing cover (130) and is used to form a seal with the box body (100).

10. The submerged rotating single shaft according to claim 1, characterized in that: The top of the box body (100) is also provided with a through hole; The through hole is located at a side of the box body (100) away from the main sealing cover (110), and is used for the air intake pipe (400) and the oil drain pipe (410) to pass through.

Images