JP2008172917A - Tip removal structure for linear motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tip removal structure for a linear motor in which tips higher in height than a marginal clearance in a stator are removed, a clearance between the stator and a needle is maintained, magnetic sensitivity between the stator and the needle is normally maintained, and the needle can normally move to the stator. <P>SOLUTION: The tips removal structure for the linear motor is characterized by including: the stator assembled to a pedestal; the movable unit slidably assembled to the stator and having the clearance which has a constant length between the end of the movable unit and the stator; and a working set whose one end is assembled to the end of the movable unit, and the other end is formed into an open angle having a slope, and in which there is the marginal clearance between the end of the open angle and the stator, and the open angle removes the tips along the sliding passage of the movable unit. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a chip removal structure, and more particularly to a linear motor chip removal structure.

As shown in FIG. 1, the conventional linear motor 10 includes a single stator 11, a single movable element 12, and two chip moving tools 13, and the stator 11 is assembled to a pedestal. Due to the magnetic sensitivity, the mover 12 moves corresponding to the stator 11, there is a gap A between the stator 11 and the mover 12, and the chip moving tool 13 is stripped. This is a resin protective cover 131 having a shape.

When the stator 11 and the mover 12 of the conventional linear motor 10 are installed in a processing environment full of chips, the protective cover 131 of the chip moving tool 13 in the linear motor 10 removes the chips.

However, since the protective cover 131 of the chip moving tool 13 is made of a resin material and has a strip shape, when the mover 12 moves with respect to the stator 11 at a high speed for a long time, the chip is cut. Since the moving tool 13 is easily worn and deformed, the gap A cannot be maintained at a limited length, and as a result, chips accumulate in the gap A between the mover 12 and the stator 11. Thus, the magnetic sensitivity of the mover 12 is hindered, and the movement path of the mover 12 relative to the stator 11 is obstructed, thereby affecting the smooth operation of the entire apparatus.

The main object of the present invention is that when the mover is sensed and moves with respect to the stator, the chip moving tool of the working set assembled to the mover makes the chips higher than the remaining gap in the stator. Is maintained, and the gap between the stator and the mover is maintained, so that the magnetic sensitivity between the stator and the mover is maintained normally, and the mover can move normally with respect to the stator. An object of the present invention is to provide a chip removal structure for a linear motor.

The invention of the present application, which has been made to achieve the above object, has a stator assembled to a pedestal, and is slidably assembled to the stator, and has a fixed length between its end and the stator. A movable element having a gap, and one end assembled to the end of the movable element and the other end formed into an open angle having a slope, and there is a remaining gap between the end of the open angle and the stator The opening angle includes a working set for removing chips along the sliding path of the mover.

In the invention of the present application, the working set includes a chip moving tool, one end of the chip moving tool is formed in a fixed portion according to an end of the mover, and the chip moving tool is formed by the fixed portion. Positioned at the end of the mover, the other end of the chip moving tool is formed with a presser according to the surface of the stator, and the presser is formed obliquely at an open angle with a slope, the presser The gist of the present invention is the chip eliminator for linear motor according to claim 1, wherein a gap is left between the end of the opening angle and the stator.

In the invention of the present application, a remaining gap between the end of the pressing portion of the chip moving tool and the stator is smaller than a gap between the mover and the stator. The gist of the present invention is the chip removal structure for a linear motor according to claim 2.

In the invention of the present application, the first inclined surface and the second inclined surface are formed on the holding portion of the working set, and the first inclined surface and the second inclined surface are formed at an open angle, 4. The linear motor chip removal structure according to claim 3, wherein the first slope is connected to one side of the second slope, and the opening angle is about 30 to 60 degrees. It is said.

In the invention of the present application, the first inclined surface and the second inclined surface are formed on the holding portion of the working set, and the first inclined surface and the second inclined surface are formed at an open angle, 3. The linear motor chip removal structure according to claim 2, wherein the first slope is connected to one side of the second slope, and the opening angle is about 30 to 60 degrees. It is said.

According to the chip removal structure for a linear motor of the present invention, when the mover is sensed and moves with respect to the stator, the chip moving tool of the working set assembled to the mover Chips higher than the remaining gap are eliminated, and the gap between the stator and the mover is maintained, so that the magnetic sensitivity between the stator and the mover is maintained normally, and the mover becomes the stator. Has the effect of being able to move normally.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

First, FIG. 2 and FIG. 3 will be referred to. The linear motor chip removal structure of the present invention includes a stator 20, a mover 30, and an operating set 40.

Each of the stators 20 is assembled on a pedestal of a machine tool, and the number of the stators 20 is appropriately set according to machining needs.

The mover 30 is installed between the stators 20 facing each other, and there is a gap A between the mover 30 and the mover 30 is magnetically sensitive to reciprocate with respect to the stator 20. It becomes moving.

The stator 20 and the mover 30 adopt a conventional structure of a linear motor with or without an iron core.

The working set 40 includes one positioning tool 41 and two chip moving tools 42.

The stator 20 is a rectangular plate and is assembled to each of two ends of the mover 30.

The chip moving tool 42 is made of a nonmagnetic metal material, has a bay-folded shape, and includes one fixing portion 421 and one pressing portion 422.

The fixing part 421 is formed at one end of the chip moving tool 42, and the fixing part 421 is detachably assembled to both sides of the positioning tool 41 with screws.

The pressing part 422 of the chip moving tool 42 has a block shape and is formed at the other end of the chip moving tool 42 at an appropriate angle of inclination. The pressing part 422 includes a first inclined surface 423 and a first inclined surface 423. Two slopes 424 are formed, and the first slope 423 and the second slope 424 are formed at an opening angle (θ is 45 degrees, θ ′ is 30 degrees, or θ ″ is 60 degrees). In addition, the first inclined surface 423 is connected to one side of the second inclined surface 424, but a preferable use angle of θ is 45 degrees, and the chip moving tool 42 is positioned in the fixed portion 421. In addition, there is a remaining gap B between the end of the opening angle (θ, θ ′, θ ″) of the presser portion 422 and the stator 20, whereby the opening angle (θ, θ ′, θ ″) removes chips along the movement path of the mover 30, that is, the first inclined surface 423 of the pressing portion 422. And the second inclined surface 424 eliminates chips on the stator 20, and the position of the fixed portion 421 of the chip moving tool 42 that is detachably assembled to the positioning tool 41 can be adjusted by a screw. The gap B can be adjusted.

Next, the operation method and effect of the present invention will be described in detail by taking the following two structures as examples.

In the case of the A structure, the remaining gap B between the end of the pressing portion 422 of the chip moving tool 42 and the stator 20 is smaller than the gap A between the mover 30 and the stator 20.

In the case of the B structure, the remaining gap B between the end portion of the pressing portion 422 of the chip moving tool 42 and the stator 20 is the same as the gap A between the mover 30 and the stator 20. .

First, the use state in the case of the A structure will be described. When the mover 30 is magnetically sensed and moves relative to the stator 11 at a high speed, the chips are removed by the inclined surface of the presser part 422 of the chip moving tool 42 of the working set 40, that is, the presser part 422 is moved. Chips on the stator 20 are eliminated by the first inclined surface 423 and the second inclined surface 424. Therefore, the gap A between the stator 20 and the mover 30 is maintained constant in the movement path, and the mover 30 The magnetic sensitivity becomes smooth and the machining efficiency of the machine tool is improved.

Next, the use state in the case of the B structure will be described. When the mover 30 is magnetically sensed and moves relative to the stator 11 at a high speed, the block shape of the pressing portion 422 of the chip moving tool 42 of the working set 40 and the presser of the chip moving tool 42 of the working set 40 are detected. Chips are eliminated when the portion 422 is made of a non-magnetic metal material. The pressing portion 422 of the chip moving tool 42 of the working set 40 has a thick block shape and strengthens the structure with a nonmagnetic metal material, so that the structural integrity of the chip moving tool 42 of the working set 40 is ensured. The wear life is reduced, the service life is longer, the frequency of replacing the chip moving tool 42 of the working set 40 is reduced, and the maintenance cost is lowered.

Here, it should be particularly emphasized that the mover 30 uses the chip moving tool 42 of the working set 40 to remove unnecessary chips from the stator 20, that is, to remove all chips from the stator 20. Instead, the remaining chips in the stator 20 do not adversely affect the magnetic sensitivity of the mover 30. In this state, the mover 30 can operate smoothly.

It is a side view which shows the deformation | transformation state of the conventional chip removal tool which is removing the chip. 1 is a schematic perspective view of the present invention. It is a top view which shows the state whose opening angle of the chip removal tool of this invention is 45 degree | times. It is the schematic which shows the use condition of the chip removal tool of this invention. It is a top view which shows the state whose opening angle of the chip removal tool of this invention is 30 degree | times. It is a top view which shows the state whose opening angle of the chip removal tool of this invention is 60 degree | times. It is the schematic which shows adjusting by moving the chip removal tool of this invention up and down.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Linear motor 11 Stator 12 Mover 13 Chip removal tool A Clearance 20 Stator 30 Mover 40 Actuator set 41 Positioning tool 42 Chip movement tool 421 Fixing part 422 Presser part 423 First slope 424 Second slope A Clearance B Remaining gaps θ, θ ′, θ ″ Open angle

Claims (5)

A stator assembled to the pedestal;
A mover that is slidably assembled to the stator and has a gap with a certain length between its end and the stator;
One end is assembled to the end of the mover, the other end is formed as an open angle having an inclined surface, and a gap is left between the end of the open angle and the stator, and the open angle is the mover And a working set for removing chips along the sliding path of the linear motor. The working set includes a chip moving tool, one end of the chip moving tool is formed in accordance with an end of the mover, and a fixed part is formed by the fixed part, and the chip moving tool is moved to the end of the mover by the fixed part. And the other end of the chip moving tool is formed with a pressing portion according to the surface of the stator, the pressing portion is formed obliquely with an opening angle having a slope, and the opening angle end of the pressing portion The chip removal structure for a linear motor according to claim 1, wherein there is a remaining gap between the portion and the stator. The remaining gap between the end of the pressing portion of the chip moving tool and the stator is smaller than the gap between the mover and the stator. Described structure for removing linear motor chips. A first slope and a second slope are formed on the pressing portion of the working set, and the first slope is formed so that the first slope and the second slope are formed at an open angle. The linear motor chip removal structure according to claim 3, wherein the linear motor is connected to one side of the second slope and the opening angle is about 30 to 60 degrees. A first slope and a second slope are formed on the pressing portion of the working set, and the first slope is formed so that the first slope and the second slope are formed at an open angle. The linear motor chip removal structure according to claim 2, wherein the linear motor is connected to one side of the second slope and the opening angle is about 30 to 60 degrees.