CN204321706U - Automatic tool change system and its power transmission device and reducer - Google Patents

Abstract

The utility model discloses an automatic tool changing system and power transmission and speed reducer thereof, wherein this speed reducer is including a casing, a power output shaft and an adjusting spindle. The power output shaft and the adjusting shaft are meshed with each other and rotatably arranged in the shell, wherein the power output shaft is driven by a mandrel of a motor to rotate, and then a cutter changing arm of a cutter changing mechanism can be driven to move. The adjusting shaft is provided with a driving end positioned outside the shell and can be combined with a tool to drive so as to achieve the purpose of troubleshooting or correction. The power transmission device comprises the speed reducer and is part of the automatic tool changing system.

Description

Automatic tool change system and its power transmission device and reducer

technical field

The utility model relates to an automatic tool changing structure of a processing machine; in particular, it refers to an automatic tool changing system, a power transmission device and a reducer.

Background technique

FIG. 1 shows an automatic tool change system of a known processing machine, which includes a servo motor 1 , a reducer 2 and a tool change mechanism 3 . The servo motor 1 has the advantages of precise and rapid speed control and high output power, so it is often selected for use in automatic tool change systems; the purpose of setting the reducer 2 is to reduce the output speed of the servo motor 1 for precise And stably control the tool changing arm 3a of the tool changing mechanism 3 to perform the tool changing switching action,

Referring to FIG. 2 again, the known reducer 2 includes a casing 2a, a helical gear 2b and a power output shaft 2c located in the casing 2a. Wherein a part of the helical gear 2b meshes with a spindle 1a of the servo motor 1, and another part meshes with a gear 2d on the power output shaft 2c, so that the power output shaft 2c can drive the tool change mechanism 3 Internal parts to achieve the purpose of the tool change switch. However, during the tool change process, if the tool change arm 3a collides for some reason and needs troubleshooting, the servo motor 1 must be removed and the reducer 2 must be disassembled, so that the tool can be used to drive the The power take-off shaft 2c in the casing 2a is used to achieve the purpose of troubleshooting or correction. But this will only increase the inconvenience of the operation, and after troubleshooting or calibration is completed and then reinstalled, it is easy to cause deviations in the sensing relative position of the encoder 4 arranged above the servo motor 1 . Therefore, the existing automatic tool change system still has some imperfections.

Utility model content

In view of this, the purpose of this utility model is to provide an automatic tool changing system and its power transmission device and reducer, the structure of which can be manually eliminated or corrected externally.

In order to achieve the above purpose, the utility model provides a speed reducer, which includes a casing, a power output shaft and an adjustment shaft. The power output shaft is rotatably arranged in the casing, and its body has a first tooth portion; the adjustment shaft is rotatably arranged in the casing, and its body has a second tooth portion and the The first tooth portion is engaged, and the adjustment shaft has a driving end located outside the casing.

Wherein the casing has a top plate and a bottom plate; the power output shaft is arranged parallel to the adjustment shaft, the power output shaft has an output end located outside the bottom plate of the casing, and the driving end of the adjustment shaft is located on the machine the outer side of the top plate of the shell.

The utility model also provides a power transmission device of an automatic tool change system, which includes a motor with a rotatable spindle, and a reducer connected with the motor, the reducer includes a casing, and is arranged on the casing A power output shaft and an adjustment shaft, wherein the power output shaft is driven by the spindle of the motor, the adjustment shaft and the power output shaft are mutually driven in a meshing manner, and the adjustment shaft has a a drive end.

Wherein the motor is a servo motor.

Wherein the power output shaft is arranged parallel to the adjustment shaft, and the body of the power output shaft has a first tooth portion, and the body portion of the adjustment shaft has a second tooth portion meshed with the first tooth portion.

Wherein the casing has a top plate and a bottom plate; the power output shaft has an output end located outside the bottom plate of the casing, and the driving end of the adjustment shaft is located outside the top plate of the casing.

The utility model further provides an automatic tool changing system, which includes a machine body, a tool changing mechanism and a power transmission device. Wherein the tool changing mechanism includes a cam and a main shaft arranged in the body, the rotation of the cam drives the main shaft to reciprocate along a straight line, one end of the main shaft is located outside the body, and is connected with a tool changing arm; the power transmission The device is arranged above the machine body and includes a motor and a reducer. The motor has a spindle for driving the rotation of a power output shaft of the reducer. The reducer also includes an adjustment shaft and the power output shaft in a meshing manner. mutual transmission, and the adjustment shaft has a driving end exposed outside the reducer.

Wherein the motor of the power transmission device is a servo motor.

Wherein the speed reducer of the power transmission device includes a casing, the casing has a top plate and a bottom plate; the power output shaft is arranged parallel to the adjustment shaft, and the body of the power output shaft has a first tooth portion, the adjustment The body of the shaft has a second tooth portion meshing with the first tooth portion, the power output shaft has an output end located outside the bottom plate of the casing, and the driving end of the adjustment shaft is located at the bottom plate of the casing. outside of the roof.

The utility model has the effect of using the exposed driving end of the adjustment shaft to facilitate the direct driving of the tool and drive the power output shaft to rotate, so as to achieve the purpose of quick troubleshooting or correction.

Description of drawings

Fig. 1 is a schematic diagram of a known automatic tool changing system.

Fig. 2 is an enlarged view of the servo motor and reducer of the automatic tool change system in Fig. 1 .

Fig. 3 is a schematic diagram of an automatic tool changing system in a preferred embodiment of the present invention.

Fig. 4 is an enlarged view of the servo motor and reducer of the automatic tool change system in Fig. 3 .

【Symbol Description】

100 automatic tool change system

10 body

20 tool change mechanism

22 Cam 24 Spindle 26 Tool changing arm

30 power transmission

32 Reducer 321 Chassis 321a Top Plate

321b bottom plate 322 power output shaft 322a output end

322b first gear 323 adjustment shaft 323a driving end

323b second gear 33 teeth 34 motor

34a mandrel 36 flange 38 helical gear

39 encoders

Detailed ways

In order to illustrate the utility model more clearly, a preferred embodiment is given hereafter and detailed description is given in conjunction with the drawings. Please refer to FIG. 3, which is an automatic tool changing system 100 of a preferred embodiment of the utility model, which includes There is a machine body 10 , a tool changing mechanism 20 and a power transmission device 30 . The power transmission device 30 further includes a speed reducer 32 and a motor 34 .

The tool changing mechanism 20 includes a cam 22 , a spindle 24 and a tool changing arm 26 . Wherein the cam 22 and the main shaft 24 are arranged in the body 10, the cam 22 is driven to rotate, and then drives the main shaft 24 to reciprocate up and down along the vertical direction; the main shaft 24 is also controlled to rotate, and its bottom is located Outside the machine body 10, the tool changing arm 26 is fixed, and the tool changing arm 26 swings along with the rotation of the main shaft 24 to complete the tool changing switching action.

Please refer to FIG. 4 , the speed reducer 32 of the power transmission device 30 includes a casing 321 , a power output shaft 322 and an adjustment shaft 323 . The casing 321 is fixed above the machine body 10 through a flange 36, and the casing 321 has a top plate 321a and a bottom plate 321b. The power output shaft 322 and the adjustment shaft 323 are respectively supported by bearings and are rotatably disposed in the casing 321 in parallel, wherein the power output shaft 322 has an output end 322a located on the bottom plate 321b of the casing 321 On the outside, the output end 322a passes through a gear 33 to drive the cam 22 of the tool changing mechanism 20; the adjustment shaft 323 has a drive end 323a located outside the top plate 321a of the casing 321, and the drive end 323a can be used for A tool (not shown) is directly connected to the outside of the speed reducer 32 to drive the adjusting shaft 323 . In addition, the body of the power output shaft 322 of the reducer 32 has a first tooth portion 322b, and the body of the adjustment shaft 323 has a second tooth portion 323b meshing with the first tooth portion 322b, so that the power output The shaft 322 and the adjustment shaft 323 can rotate synchronously.

The motor 34 of the power transmission device 30 is a servo motor widely used in position and speed control in this embodiment. The motor 34 is fixed on the casing 321 of the reducer 32 and has a rotatable The spindle 34a protrudes into the casing 321 for driving the power output shaft 322 . In this embodiment, the two ends of a helical gear 38 are used to mesh with the helical gear at the front end of the spindle 34a and the first tooth portion 322b respectively, so that the power output shaft 322 can be the spindle of the motor 34 34a, and then drives the cam 22 to control the lifting of the tool changing arm 26. However, it should be noted that the structure of the spindle 34 a of the motor 34 for driving the power output shaft 322 is not limited to the helical gear 38 , for example, a plurality of gears may be meshed for intermediate transmission.

In the above embodiment, since the adjustment shaft 323 of the speed reducer 32 can rotate synchronously with the power output shaft 322 , it will not interfere with the rotation of the power output shaft 322 , thereby ensuring a smooth tool changing operation. When the tool changing arm 26 collides for some reason and needs troubleshooting or correction, the operator does not need to take down the motor 34 and disassemble the speed reducer 32 in the state of stopping, and can use a The tool is directly combined with the driving end 323a of the adjustment shaft 323, and when the adjustment shaft 323 is driven to rotate, it can drive the power output shaft 322 to rotate, so that troubleshooting or correction can be quickly completed. Therefore, the structure of the present utility model can be eliminated or corrected manually by the outside, so as to have the effect of quick maintenance and improve the working efficiency. In addition, since the motor 34 does not need to be disassembled, there will be no deviation in the sensing relative position of an encoder 39 coupled to the motor 34, which can ensure the accuracy of the tool changing position.

The above descriptions are only the preferred feasible embodiments of the utility model, and any equivalent changes made by applying the specification and claims of the utility model should be included in the patent scope of the utility model.

Claims (9)

1. A speed reducer, characterized in that it comprises: a casing; a power take-off shaft is rotatably disposed in the casing, and its body has a first tooth portion; and An adjustment shaft is also rotatably arranged in the casing, and its body has a second tooth portion engaged with the first tooth portion, and the adjustment shaft has a driving end located outside the casing. 2. The speed reducer according to claim 1, wherein the casing has a top plate and a bottom plate; the power output shaft is arranged parallel to the adjustment shaft, and the power output shaft has an outer side of the bottom plate of the casing. An output end of the adjustment shaft, the driving end of the adjustment shaft is located outside the top plate of the casing. 3. A power transmission device of an automatic tool change system, characterized in that it comprises: a motor having a rotatable spindle; A speed reducer connected with the motor, the speed reducer includes a casing, and a power output shaft and an adjustment shaft arranged in the casing, wherein the power output shaft is driven by the spindle of the motor, the The adjustment shaft and the power output shaft are engaged with each other for transmission, and the adjustment shaft has a driving end located outside the casing. 4. The power transmission device of the automatic tool change system according to claim 3, wherein the motor is a servo motor. 5. The power transmission device of the automatic tool change system according to claim 4, wherein the power output shaft is arranged parallel to the adjustment shaft, and the body of the power output shaft has a first tooth portion, and the adjustment shaft The body has a second tooth meshing with the first tooth. 6. The power transmission device of the automatic tool change system according to claim 5, wherein the casing has a top plate and a bottom plate; the power output shaft has an output end located outside the bottom plate of the casing, the The driving end of the adjustment shaft is located outside the top plate of the casing. 7. An automatic tool change system, characterized in that it includes: a body; A tool changing mechanism, including a cam and a main shaft arranged in the body, the cam rotates to drive the main shaft to reciprocate along a straight line, one end of the main shaft is located outside the body, and is connected to a tool changing arm; and A power transmission device is arranged above the body and includes a motor and a reducer. The motor has a spindle for driving a power output shaft of the reducer to rotate. The reducer also includes an adjustment shaft and the drive output The shafts are mutually driven in a meshing manner, and the adjustment shaft has a driving end exposed outside the reducer. 8. The automatic tool changing system according to claim 7, wherein the motor of the power transmission device is a servo motor. 9. The automatic tool changing system according to claim 7, wherein the speed reducer of the power transmission device includes a casing, the casing has a top plate and a bottom plate; the power output shaft is arranged parallel to the adjustment shaft , the body of the power output shaft has a first tooth portion, the body of the adjustment shaft has a second tooth portion meshing with the first tooth portion, the power output shaft has a The output end, the driving end of the adjustment shaft is located outside the top plate of the casing.