External rotation hydraulic tool

Abstract

The utility model relates to the field of gear hobbing machines, in particular to an external rotating hydraulic tool which comprises a shell, a shaft hole is formed in the center of the outer wall of the top of the shell, a piston cavity is formed in the position, located at the bottom end of the shaft hole, of the shell, a rotating structure is slidably connected into the shaft hole, and a hydraulic cavity is formed in the outer wall of the bottom of the shell. The shell is provided with a jacking structure on the outer wall of the hydraulic cavity; the jacking structure comprises two oil tanks, a backflow pipe connected to the outer wall of the bottom of the oil tank, a first oil pipe connected to the outer wall of the bottom of the other oil tank and a filter cylinder connected to the other end of the first oil pipe. The rotating structure comprises a main shaft, a rotating cylinder installed on the outer wall of the top end of the main shaft, a rotating motor installed in the center of the inner wall of the rotating cylinder and a rotating disc installed on an output shaft of the rotating motor. After the rotating motor in the rotating cylinder is started, the rotating disc is driven to rotate, auxiliary operation is facilitated, and auxiliary feeding and discharging work of the gear hobbing machine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing machines, in particular to an external rotating hydraulic tooling. Background Art

[0002] Gear hobbing machine is the most widely used type of gear processing machine tool. It can cut spur and helical cylindrical gears, and can also process worm wheels, sprockets, etc. Gear processing machine tools that use hobs to process spur, helical and herringbone cylindrical gears and worm wheels according to the development method;

[0003] The traditional gear hobbing machine has a small space under the workbench, and it is impossible to install a rotary cylinder for automatic loading and unloading operations, which makes it impossible to install the automatic loading and unloading device, affecting the working efficiency of the gear hobbing machine. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems and shortcomings and to propose an external rotating hydraulic tooling: the overall structure is compact, easy to install below the workbench of the gear hobbing machine, easy to assist in automatic loading and unloading operations, easy to install, and easy to assist in loading and unloading operations.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An external rotating hydraulic tooling comprises a shell, an axial hole is opened at the center of the top outer wall of the shell, and a piston cavity is opened at the bottom end of the axial hole of the shell, a rotating structure is slidably connected in the axial hole, and a hydraulic cavity is opened on the bottom outer wall of the shell, and a jacking structure is installed on the outer wall of the hydraulic cavity of the shell; the jacking structure comprises two oil tanks, a return pipe connected to the bottom outer wall of the oil tank, an oil pipe connected to the bottom outer wall of the other oil tank, and a filter cylinder connected to the other end of the oil pipe; the rotating structure comprises a main shaft, a rotating cylinder installed on the top outer wall of the main shaft, a rotating motor installed at the center of the inner wall of the rotating cylinder, a piston disk installed on the bottom outer wall of the main shaft, and a rotating disk installed on the output shaft of the rotating motor.

[0007] Preferably, a connecting pipe is connected between the bottom outer walls of the oil tank, and a valve is installed on the outer wall of one end of the return pipe, and the other end of the return pipe is connected to the piston cavity;

[0008] According to the above scheme: start the valve on the reflux pipe, the oil in the piston cavity re-enters the oil tank from the reflux pipe under the squeezing of the auxiliary spring for storage, and the oil is used for lifting operations, which is convenient for auxiliary automatic loading and unloading operations.

[0009] Preferably, the top outer wall of the filter cartridge is connected to oil pipe 2, and an oil filter is slidably installed on the outer wall of one side of the filter cartridge, the other end of oil pipe 2 is connected to an oil pump, the output end of the oil pump is connected to a delivery pipe, and the other end of the delivery pipe is connected to the piston cavity.

[0010] Preferably, a mounting frame is installed on the outer wall of the oil tank, and the mounting frame is installed on the outer wall of the hydraulic cavity, and an addition pipe is connected to the outer wall on the top side of the oil tank, and a one-way valve is installed in the addition pipe.

[0011] Preferably, the outer wall of the main shaft and the outer wall of the piston disc are both provided with sealing grooves, and the main shaft is provided with a sealing ring installed in the sealing groove, and the piston disc is provided with a piston ring installed in the sealing groove.

[0012] Preferably, an auxiliary spring is installed on the top outer wall of the piston disc, and the other end of the auxiliary spring is installed on the top inner wall of the piston cavity.

[0013] Preferably, the outer wall of the rotating cylinder and the shell are provided with heat dissipation holes distributed at equal distances at the hydraulic cavity;

[0014] According to the above scheme: after the rotating motor inside the rotating drum is started, it drives the rotating disk to rotate, which is convenient for auxiliary operations and auxiliary loading and unloading of the gear hobbing machine.

[0015] Preferably, the oil pump, the valve and the rotary motor are connected to a switch via wires, and the switch is connected to a power source via wires.

[0016] The beneficial effects of the utility model are:

[0017] 1. Start the valve on the return pipe. The oil in the piston cavity re-enters the oil tank from the return pipe under the pressure of the auxiliary spring. The oil is used for lifting and lowering operations, which is convenient for auxiliary automatic loading and unloading operations;

[0018] 2. After the rotating motor inside the rotating drum is started, it drives the rotating disk to rotate, which is convenient for auxiliary operations and auxiliary loading and unloading of the gear hobbing machine;

[0019] 3. The overall structure is compact, which is convenient for installation under the workbench of the gear hobbing machine, and is convenient for assisting automatic loading and unloading operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic cross-sectional structure diagram of an external rotating hydraulic tooling proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a shell of an external rotating hydraulic tooling proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the unfolded structure of a jacking structure of an external rotating hydraulic tooling proposed by the utility model;

[0023] Figure 4This is a schematic diagram of the main shaft expansion structure of an external rotating hydraulic tooling proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the main shaft top structure of an external rotating hydraulic tooling proposed by the utility model;

[0025] Figure 6 The utility model is a schematic diagram of the overall surface structure of an external rotating hydraulic tooling.

[0026] In the figure: 1 housing, 2 shaft hole, 3 piston cavity, 4 rotating structure, 5 hydraulic cavity, 6 lifting structure, 7 mounting frame, 8 oil tank, 9 connecting pipe, 10 return pipe, 11 valve, 12 delivery pipe, 13 oil pump, 14 filter cylinder, 15 oil filter, 16 main shaft, 17 rotating cylinder, 18 rotating motor, 19 rotating disk, 20 heat dissipation hole, 21 piston disk, 22 piston ring, 23 sealing ring, 24 auxiliary spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1:

[0029] Reference Figure 1-6 An external rotating hydraulic tooling comprises a shell 1, an axial hole 2 is opened at the center of the top outer wall of the shell 1, and a piston cavity 3 is opened at the bottom end of the axial hole 2 of the shell 1, a rotating structure 4 is slidably connected in the axial hole 2, and a hydraulic cavity 5 is opened on the bottom outer wall of the shell 1, and a lifting structure 6 is installed on the outer wall of the hydraulic cavity 5 of the shell 1. The overall structure is compact and can be easily installed under the workbench of the gear hobbing machine to assist in automatic loading and unloading operations.

[0030] The rotating structure 4 includes a main shaft 16, a rotating cylinder 17 installed on the outer wall of the top end of the main shaft 16, a rotating motor 18 installed at the center of the inner wall of the rotating cylinder 17, a piston disc 21 installed on the outer wall of the bottom end of the main shaft 16, and a rotating disc 19 installed on the output shaft of the rotating motor 18. After the rotating motor 18 is started, it drives the rotating disc 19 to rotate, which is convenient for auxiliary operations and auxiliary loading and unloading of the gear hobbing machine;

[0031] The outer wall of the main shaft 16 and the outer wall of the piston plate 21 are both provided with sealing grooves, and the main shaft 16 is provided with a sealing ring 23 in the sealing groove, and the piston plate 21 is provided with a piston ring 22 in the sealing groove. The sealing ring 23 on the main shaft 16 and the piston ring 22 on the piston plate 21 are both sealed to prevent the pressure leakage of the oil;

[0032] An auxiliary spring 24 is installed on the top outer wall of the piston disc 21, and the other end of the auxiliary spring 24 is installed on the top inner wall of the piston cavity 3;

[0033] The outer wall of the rotating cylinder 17 and the housing 1 are provided with heat dissipation holes 20 at equal distances at the hydraulic cavity 5. When the rotating motor 18 is started, the heat dissipation holes 20 at the outer wall of the rotating cylinder 17 and the housing 1 allow air to enter the rotating cylinder 17 and be discharged, so as to dissipate heat for the rotating motor 18.

[0034] The oil pump 13, the valve 11 and the rotary motor 18 are connected to a switch through wires, and the switch is connected to a power source through wires.

[0035] Embodiment 2:

[0036] Reference Figure 1-5 The lifting structure 6 includes two oil tanks 8, a return pipe 10 connected to the outer wall of the bottom of the oil tank 8, an oil pipe 1 connected to the outer wall of the bottom of the other oil tank 8, and a filter cartridge 14 connected to the other end of the oil pipe 1. When the oil tank 8 extracts oil through the oil pipe 1 and the oil pipe 2, the oil filter 15 in the filter cartridge 14 filters and intercepts the oil to prevent impurities in the oil from entering the oil pump 13, thereby ensuring the normal service life of the oil pump 13.

[0037] A connecting pipe 9 is connected between the bottom outer walls of the oil tank 8, and a valve 11 is installed on the outer wall of one end of the return pipe 10, and the other end of the return pipe 10 is connected to the piston cavity 3. The tank bodies 8 are connected through the connecting pipe 9, and the used oil enters one tank body 8. The impurities generated by the use will be precipitated at the bottom of the tank body 8, so as to prevent a large amount of impurities from entering another tank body 8 through the connecting pipe 9;

[0038] The top outer wall of the filter cartridge 14 is connected with an oil pipe 2, and an oil filter 15 is slidably mounted on one side outer wall of the filter cartridge 14. The other end of the oil pipe 2 is connected with an oil pump 13. The output end of the oil pump 13 is connected with a delivery pipe 12. The other end of the delivery pipe 12 is connected with the piston cavity 3. The oil filter 15 on the filter cartridge 14 is regularly removed from the filter cartridge 14 for easy replacement.

[0039] The outer wall of the oil tank 8 is installed with a mounting frame 7, and the mounting frame 7 is installed on the outer wall of the hydraulic cavity 5. The outer wall on one side of the top of the oil tank 8 is connected with an addition pipe, and a one-way valve is installed in the addition pipe.

[0040] Working principle: When in use, the structure required for automatic loading and unloading is installed on the top outer wall of the rotating disk 19, and hydraulic oil is added to the oil tank 8 through the adding pipe and the one-way valve. After the preparation work is completed, the oil pump 13 is started. The oil pump 13 extracts the oil in the oil tank 8 through the oil pipe 2 and the oil pipe 1 and transports it to the piston cavity 3 through the delivery pipe 12. The oil inside the piston cavity 3 pushes the piston disk 21 upward from the bottom to the top, and the piston disk 21 compresses the auxiliary spring 24 to move the main shaft 16 and the rotating disk 19 upward to increase the height of the equipment. The rotating motor 18 inside the rotating cylinder 17 at one end of the main shaft 16 drives the rotating disk 19 to rotate after starting, which is convenient for auxiliary operations and auxiliary loading and unloading of the gear hobbing machine. After the ascent is completed, the oil pump 13 is closed and the valve 11 on the return pipe 10 is started. The oil in the piston cavity 3 is squeezed by the auxiliary spring 24 and re-enters the oil tank 8 from the return pipe 10 for storage.

[0041] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. An external rotary hydraulic tooling, comprising a housing (1), characterized in that: An axial hole (2) is provided at the center of the top outer wall of the shell (1), and a piston cavity (3) is provided at the bottom end of the axial hole (2) of the shell (1), a rotating structure (4) is slidably connected in the axial hole (2), and a hydraulic cavity (5) is provided on the bottom outer wall of the shell (1), and a lifting structure (6) is installed on the outer wall of the hydraulic cavity (5) of the shell (1); The lifting structure (6) comprises two oil tanks (8), a return pipe (10) connected to the outer wall of the bottom of one oil tank (8), an oil pipe 1 connected to the outer wall of the bottom of another oil tank (8), and a filter cartridge (14) connected to the other end of the oil pipe 1; The rotating structure (4) comprises a main shaft (16), a rotating cylinder (17) mounted on the outer wall of the top end of the main shaft (16), a rotating motor (18) mounted at the center of the inner wall of the rotating cylinder (17), a piston disk (21) mounted on the outer wall of the bottom end of the main shaft (16), and a rotating disk (19) mounted on the output shaft of the rotating motor (18).

2. The external rotary hydraulic tooling according to claim 1, characterized in that: A connecting pipe (9) is connected between the bottom outer walls of the oil tank (8), and a valve (11) is installed on the outer wall of one end of the return pipe (10), and the other end of the return pipe (10) is connected to the piston cavity (3).

3. The external rotating hydraulic tooling according to claim 1, characterized in that: The top outer wall of the filter cylinder (14) is connected to an oil pipe 2, and an oil filter (15) is slidably mounted on the outer wall of one side of the filter cylinder (14). The other end of the oil pipe 2 is connected to an oil pump (13). The output end of the oil pump (13) is connected to a delivery pipe (12), and the other end of the delivery pipe (12) is in communication with the piston cavity (3).

4. The external rotating hydraulic tooling according to claim 1, characterized in that: The outer wall of the oil tank (8) is installed with a mounting frame (7), and the mounting frame (7) is installed on the outer wall of the hydraulic chamber (5). The outer wall on one side of the top end of the oil tank (8) is connected to an addition pipe, and a one-way valve is installed in the addition pipe.

5. The external rotating hydraulic tooling according to claim 1, characterized in that: The outer wall of the main shaft (16) and the outer wall of the piston disc (21) are both provided with sealing grooves, and the main shaft (16) is provided with a sealing ring (23) in the sealing groove, and the piston disc (21) is provided with a piston ring (22) in the sealing groove.

6. The external rotating hydraulic tooling according to claim 1, characterized in that: An auxiliary spring (24) is installed on the top outer wall of the piston disc (21), and the other end of the auxiliary spring (24) is installed on the top inner wall of the piston cavity (3).

7. The external rotating hydraulic tooling according to claim 1, characterized in that: The outer wall of the rotating cylinder (17) and the shell (1) are both provided with heat dissipation holes (20) distributed at equal distances at the hydraulic cavity (5).

8. The external rotating hydraulic tooling according to claim 3, characterized in that: The oil pump (13), the valve (11) and the rotating motor (18) are connected to a switch via a wire, and the switch is connected to a power source via a wire.

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