JP4287938B2 - Mobile device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a moving device provided with an automatic grease supplying device for automatically supplying grease to a driving means for moving a moving body.
[0002]
[Prior art]
Conventionally, in order to supply grease to a carriage driving means (driving system) that moves a workpiece in one direction using, for example, a laser processing machine, the grease is manually supplied by a grease gun after the driving means is stopped. Alternatively, it is known to supply a grease to the driving means by attaching a fueling device driven by a commercially available electric / pneumatic means to the carriage and driving the oiling device.
[0003]
[Problems to be solved by the invention]
By the way, the above-described conventional means for supplying grease by human power has a problem that it takes time and maintenance tends to be negligible, and the drive means (drive system) is consumed quickly. Further, the means for attaching grease to the carriage and supplying grease is not suitable for high-speed movement because the oil supply device includes an oil supply motor or solenoid, and the moving object (carriage + oil supply device) becomes heavy. Even if the oil supply device is not placed on the carriage, it is difficult to process the piping to the oil supply port. In addition, a metal tube is impossible, and the resin tube has a problem that it bursts due to the pressure of grease.
[0004]
An object of the present invention is to provide an automatic grease supply device that automatically supplies grease to the drive means without using electricity and air, lightens the moving body, achieves high speed and high accuracy, and eliminates wiring and piping. To provide a moving device.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the moving device of the present invention according to claim 1 is provided with a moving body movable in one direction by a driving means on a fixed member, and an automatic grease supply device is provided on one end side of the moving body, The grease automatic oil supply device includes an oil supply pipe provided on the movable body side, a first oil supply chamber communicated with the oil supply pipe via a first check valve, and the first oil supply chamber and the second check valve. A second oil supply chamber communicated via the first oil supply chamber, a grease tank that is always energized and communicated with the second oil supply chamber by the first energizing means, and the oil supply pipe that is always connected to the first oil supply chamber by the second energizing means. It is comprised by the piston urged | biased on the opposite side, and the damper fixed on the said fixing member, It is characterized by the above-mentioned.
[0006]
Therefore, the movable body is reciprocated in one direction by the driving means on the fixed member. Whenever the movable body is moved to the positive end in one direction, for example, the piston hits the damper and is pushed against the urging force of the second urging means, so that the grease in the first oil supply chamber is reversed in the first direction. Grease is pushed out in the forward direction of the stop valve and flows into the oil supply pipe, and is then sent from the oil supply pipe to the drive means for oil supply.
[0007]
When the moving body moves, for example, to the minus side in one direction, the piston away from the damper moves to the damper side by the urging force of the second urging means, and the grease moves in the forward direction of the second check valve. At this time, the grease tank is pushed by the urging force of the first urging means so that the grease easily flows.
[0008]
Thus, automatic lubrication is performed in the grease automatic supply device without a driving source such as electricity or air, and the moving body is lightened, and high speed and high accuracy are achieved. Furthermore, wiring and piping are unnecessary.
[0009]
According to a second aspect of the present invention, there is provided a moving device according to the present invention, wherein a movable body movable in one direction by a driving means is provided on a fixed member, an oil supply pipe is fixed to one end side of the movable body, and 1 is provided with a check valve, a grease nipple is provided on one end of the oil supply pipe, a grease automatic oil supply device is provided on the fixing member, and a first biasing means is always provided in the grease automatic oil supply device toward the grease nipple side. And a grease tank that is always urged by the second urging means toward the grease nipple side, a piston that can be engaged with and disengaged from the grease nipple is provided in the oil supply chamber, and a grease tank in the grease automatic oil supply device; A second check valve is provided between the second urging means and the second urging means.
[0010]
Therefore, the movable body is reciprocated in one direction by the driving means on the fixed member. When the moving body is moved to the plus side in one direction, for example, the grease nipple engages with the piston of the automatic grease supply device, the piston is pushed in as it is, the second urging means contracts, and the grease in the grease tank is 2 Since the oil is fed to the oil supply chamber via the check valve, the oil flows from the oil supply chamber to the oil supply pipe via the first check valve, and is then sent from the oil supply pipe to the driving means for oil supply.
[0011]
For example, when the moving body moves to the minus side in one direction, the piston extends to the oil supply pipe side by the urging force of the second urging means, and the grease is fed from the grease tank to the oil supply chamber in the forward direction of the second check valve. It is. Also, the grease nipple is separated from the piston. At this time, the grease tank is pushed toward the oil supply chamber by the urging force of the first urging means so that the grease easily flows.
[0012]
Thus, automatic lubrication is performed in the grease automatic supply device without a drive source such as electricity or air, and the moving body is lightened, and high speed and high accuracy are achieved. Furthermore, wiring and piping are unnecessary.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
Referring to FIG. 3, the laser beam machine 1 includes an example table 3 as a fixed member that is fixed, and the Y-axis direction is substantially at the center of the table 3 in the X-axis direction (left-right direction in FIG. 3). For example, a rectangular processing groove 5 is formed by extending in the front-rear direction in FIG. A frame (not shown) is provided above the table 3, and a laser processing head 7 is provided on the frame above the processing groove 5 so as to be movable in the Y-axis direction.
[0015]
A linear guide 9 extending in the X-axis direction is laid on the rear portion of the table 3, and a carriage 13 as an example of a moving body is provided in the linear guide 9 via a plurality of guide members 11. It is provided to be movable. An X-axis drive motor 15 is provided at the left end of the rear end on the table 3, and one end of a ball screw 17 that extends in the X-axis direction is connected to the X-axis drive motor 15. In addition, the other end of the ball screw 17 is rotatably supported.
[0016]
A nut member 19 is screwed onto the ball screw 17 and the nut member 19 is integrated with the carriage 13. The carriage 13 is provided with a plurality of work clamps 20. With the above-described configuration, the carriage 13 is moved in the X-axis direction while the workpiece W is clamped on the workpiece clamp 20, and the laser machining is performed at a predetermined position of the workpiece W by moving the laser machining head 7 in the Y-axis direction. It will be.
[0017]
A grease automatic oil supply device 21 is fixed on the right side of the carriage 13 in FIG. A damper 23 is fixed to the right end at the rear end of the table 3. As shown in FIG. 1, the grease automatic oil supply device 21 includes an oil supply body 25, and an oil supply pipe 27 is provided on the carriage 13 side of the oil supply body 25. Are provided with a plurality of pipes 27A to 27D for supplying grease to the ball screw 17, the nut member 19, the linear guide 9 and the guide member 11, respectively.
[0018]
A first check valve 29 is provided in the base portion of the oil supply pipe 27, and a first oil supply chamber 31 is communicated with the oil supply pipe 27. A second oil supply chamber 35 is communicated with the first oil supply chamber 31 via a second check valve 33. A grease tank 39 that is constantly urged toward the second oil supply chamber 35 by a spring 37 as an example of first urging means is communicated with the second oil supply chamber 35.
[0019]
The first oil supply chamber 29 includes a left end portion 41L of the piston 41 in FIG. 1, and the other portions protrude rightward in FIG. In addition, an example spring 43 as a second urging means is interposed between the right end portion 41R of the piston 41 in FIG. 1 and the side wall of the fuel supply body 25, and the urging force of the spring 43 causes the piston in FIG. 41 is always urged to the right in FIG.
[0020]
With the above configuration, the carriage 13 as the moving body is reciprocated in one direction by the X-axis drive motor 15 on the table 3 as the fixed member. For example, whenever the carriage 13 is moved to the positive side end in one direction in FIG. 3, the right end portion 41 </ b> R of the piston 41 hits the damper 23 and is pushed against the urging force of the spring 43, thereby causing the first oil supply chamber 31. The grease is pushed out in the forward direction of the first check valve 29 and flows into the oil supply pipe 27, and then from the oil supply pipe 27 through the pipes 27A to 27D, the ball screw 17 of the driving means, the nut member 19, The oil is fed to the linear guide 9 and the guide member 11 and supplied with oil.
[0021]
3, for example, when the carriage 13 moves to the minus side in one direction, the piston 41 separated from the damper 23 moves to the damper 23 side by the urging force of the spring 43, and the second check valve 33 moves in the forward direction. The grease moves from the second oil supply chamber 35 to the first oil supply chamber 31. At this time, the grease tank 39 is pushed by the urging force of the spring 37 so that the grease easily flows, and the grease is automatically flowed from the grease tank 39 into the second oil supply chamber 35.
[0022]
By repeating the above operation, grease can be automatically supplied. When there is no grease in the grease tank 39, the extension of the spring 43 is detected by a limit switch, a strain gauge or the like, and a cleaning display may be made so that the grease is jammed or the grease tank 39 is replaced if it is a cartridge. Moreover, when the grease tank 39 is a cartridge, the grease can be easily replenished.
[0023]
Thus, the automatic grease supplying device 21 is automatically refueled without a driving source such as electricity or air, and the carriage 3 is lightened, so that high speed and high accuracy can be achieved.
[0024]
FIG. 2 shows another embodiment in place of FIG. In FIG. 2, an oil supply pipe 45 is fixed to the carriage 13, and an automatic grease supply device 47 is fixed to the table 3. The oil supply pipe 45 is provided with a plurality of pipes 45A to 45D for supplying oil to the ball screw 17, the nut member 19, the linear guide 9, and the guide member 11, respectively.
[0025]
A first check valve 49 is provided in the base of the oil supply pipe 27 and a grease nipple 51 is provided at the end of the base. The automatic grease supply device 47 includes an oil supply body 53, and the grease nipple 51 in the oil supply body 53 is constantly urged to the left in FIG. 2 by the urging force of an example spring 55 as second urging means. A piston 57 is provided in a first oil supply chamber 59 provided in the oil supply main body 53. A grease tank 63 is communicated with the first oil supply chamber 59 via a second check valve 61. The grease tank 63 is constantly urged to the left in FIG. 2 by the urging force of an example spring 65 as a first urging means.
[0026]
With the above configuration, the carriage 13 is reciprocated in one direction on the table 3 by the X-axis drive motor 15. For example, when the carriage 13 is moved to the plus side in one direction in FIG. 3, the grease nipple 51 is engaged with the piston 57 of the automatic grease supply device 47, and the piston 57 is pushed in as it is, so that the spring 55 is contracted to the right side. Since the grease in 63 is sent to the oil supply chamber 59 via the second check valve 61, it flows from the oil supply chamber 61 into the oil supply pipe 45 via the first check valve 49, and then this oil supply pipe. 45 is supplied to the ball screw 17, the nut member 19, the linear guide 9, and the guide member 11 of the driving means through the pipes 45 </ b> A to 45 </ b> D and supplied with oil.
[0027]
When the carriage 13 moves to, for example, the negative side in one direction in FIG. 3, the piston 57 extends to the oil supply pipe 45 side by the urging force of the spring 55, and grease is transferred from the grease tank 63 in the forward direction of the second check valve 61. It is fed into the fueling chamber 59. Further, the grease nipple 51 is separated from the piston 57. At this time, the grease tank 63 is pushed toward the oil supply chamber 59 by the urging force of the spring 65 so that the grease easily flows.
[0028]
Thus, the automatic grease supplying device 47 is automatically refueled without a driving source such as electricity or air, and the carriage 13 is lightened, so that high speed and high accuracy can be achieved. Furthermore, wiring and piping can be eliminated.
[0029]
In addition, this invention is not limited to embodiment of invention mentioned above, It can implement in another aspect by making an appropriate change. In FIG. 2, a check valve is provided in the piston 57 to further prevent grease from leaking.
[0030]
【The invention's effect】
As can be understood from the description of the embodiment of the invention as described above, according to the invention of claim 1, the moving body is reciprocated in one direction by the driving means on the fixed member. Whenever the movable body is moved to the positive end in one direction, for example, the piston hits the damper and is pushed against the urging force of the second urging means, so that the grease in the first oil supply chamber is reversed in the first direction. Grease is pushed out in the forward direction of the stop valve and flows into the oil supply pipe, and is then sent from the oil supply pipe to the drive means for oil supply.
[0031]
When the moving body moves, for example, to the minus side in one direction, the piston away from the damper moves to the damper side by the urging force of the second urging means, and the grease moves in the forward direction of the second check valve. At this time, the grease tank is pushed by the urging force of the first urging means so that the grease easily flows.
[0032]
Thus, the automatic grease supply apparatus can be automatically refueled without a driving source such as electricity or air, and the moving body can be lightened to achieve high speed and high accuracy. Furthermore, wiring and piping can be eliminated.
[0033]
According to the invention of claim 2, the moving body is reciprocated in one direction on the fixed member by the driving means. When the moving body is moved to the plus side in one direction, for example, the grease nipple engages with the piston of the automatic grease supply device, the piston is pushed in as it is, the second urging means contracts, and the grease in the grease tank is 2 Since the oil is fed to the oil supply chamber via the check valve, the oil flows from the oil supply chamber to the oil supply pipe via the first check valve, and is then sent from the oil supply pipe to the driving means for oil supply.
[0034]
For example, when the moving body moves to the minus side in one direction, the piston extends to the oil supply pipe side by the urging force of the second urging means, and the grease is fed from the grease tank to the oil supply chamber in the forward direction of the second check valve. It is. Also, the grease nipple is separated from the piston. At this time, the grease tank is pushed toward the oil supply chamber by the urging force of the first urging means so that the grease easily flows.
[0035]
Thus, the automatic grease supply apparatus can be automatically refueled without a driving source such as electricity or air, and the moving body can be lightened to achieve high speed and high accuracy. Furthermore, wiring and piping can be eliminated.
[Brief description of the drawings]
1 is an enlarged front cross-sectional view of the grease automatic supply device in FIG. 3;
FIG. 2 is a front sectional view of another embodiment instead of FIG.
FIG. 3 is a perspective view of an example of a laser processing machine.
[Explanation of symbols]
1 Laser processing machine 3 Table (fixing member)
9 Linear guide rail 11 Guide member 13 Carriage (moving body)
15 X axis drive motor (drive means)
17 Ball screw 19 Nut member 21 Automatic grease supply device 23 Damper 25 Oil supply body 27 Oil supply pipe 29 First check valve 31 First oil supply chamber 33 Second check valve 35 Second oil supply chamber 37 Spring (first biasing means) )
39 Grease tank 41 Piston 43 Spring (second biasing means)

Claims (2)

A movable body movable in one direction by a driving means is provided on the fixed member, and an automatic grease refueling device is provided on one end side of the movable body, the automatic lubrication device provided on the movable body side, A first oil supply chamber communicated with the oil supply pipe via the first check valve, a second oil supply chamber communicated with the first oil supply chamber via the second check valve, and a first oil supply chamber connected to the first oil supply chamber. Fixed on the fixed member, a grease tank that is always urged and communicated by the urging means, a piston that is always urged by the second urging means to the side opposite to the oil supply pipe by the second urging means. And a damper. A movable body that is movable in one direction by a driving means is provided on a fixed member, and an oil supply pipe is fixed to one end of the movable body, and a first check valve is provided in the oil supply pipe, and the oil supply pipe A grease nipple is provided at one end of the grease, a grease automatic oil supply device is provided on the fixed member, a grease tank that is always urged by the first urging means toward the grease nipple side is provided in the grease automatic oil supply device, and the grease is provided. The second urging means is always urged toward the nipple side, and a piston capable of being engaged with and disengaged from the grease nipple is provided in the oil supply chamber, and the second urging means is provided between the grease tank and the second urging means in the automatic grease supply device. A moving device comprising a check valve.

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