JPH0314284Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a slide table moving device for a machine tool.

<Prior Art> A grinding wheel head of a grinding machine is slidably and fixedly provided on a movable base in order to perform inner diameter grinding and outer diameter grinding of a workpiece. Furthermore, it is also provided so as to be rotatable for taper grinding.

<Problems to be Solved by the Invention> Conventionally, when moving the above-mentioned grinding wheel head, the grinding wheel head gets stuck to the moving base due to oil, coolant dirt, etc., and a large force is required at the beginning of the movement.

<Means for Solving the Problems> The present invention solves the above-mentioned conventional problems, and its gist is that a guide plate is rotatably provided on a movable base, and a slide base is linearly slidable on the guide plate. A nut is fixed on the guide plate, and a screw shaft is attached to the nut so that the axis line is in the linear sliding direction of the slide base. A groove for positioning the slide base is recessed in the circumferential direction on this screw shaft, and a metal fitting that engages and disengages from the groove is pivotally attached to the slide base.

<Operation> The present invention moves the slide base back and forth by rotating the screw shaft forward and backward while the metal fitting is engaged with the groove, thereby releasing the bite from the movable base and engaging the metal fitting from the groove. The slide platform can be moved widely by releasing the slide.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. 1 is a bed, and 2 is a movable base slidably guided on the bed 1. Reference numeral 3 denotes a feed screw for the movable base 2, which is screwed into a nut 4 fixed to the lower surface of the movable base 2.

5 is the main body of the whetstone head. This grindstone head main body is placed on the moving base 2 so as to be slidable and pivotable in the axial direction of the speed screw 3, and is fixed to the moving base 2 by T bolts 12. The sliding and turning means for the grinding wheel head main body 5 is a structure in which a guide plate 6 is provided on the moving base 2 so as to be rotatable by a pivot 7, and a part of the grinding wheel head main body 5 is guided by the guide plate 6. . 13 is a reference scale engraved on the end of the guide plate 6, and 14 is a scale plate fixed on the movable base 2.

The present invention provides a nut 8 on the guide plate 6.
A screw shaft 9 is screwed into the nut 8 with its axis oriented in the sliding direction of the grindstone head 5. This screw shaft 9
Grooves 10a and 10b are formed in the circumferential direction of the grindstone head 5.
A metal fitting 11 that engages and disengages from the grooves 10a and 10b is pivotably mounted on the side. The grooves 10a and 10b provided on the screw shaft 9 correspond to the sliding position of the grindstone head 5, and when grinding the workpiece internally, one groove 10a is used to align the grindstone with the workpiece. The grooves 10b are positioned correspondingly, and when the outer diameter is to be ground, the grooves 10b are positioned in the other groove 10b.

Next, the operation of the present invention will be explained. In the illustration, the metal fitting 11 is engaged with the other groove 10b of the screw shaft 9. That is, the grindstone head 5 is positioned at a position for grinding the outer diameter of the workpiece. From this state, grindstone head 5
When pivoting to the inner diameter grinding position or for tapered surface grinding, first loosen the bolt 12. Thereafter, the screw shaft 9 is rotated in either the forward or reverse direction. By rotating this screw shaft 9, the screw shaft 9 moves forward or backward in the axial direction with respect to the fixed nut 8, and this forward or backward movement force is applied to the grinding wheel via the metal fitting 11 engaged with the groove 10b. The information is transmitted to the stand main body 5, and the grip of the grindstone stand main body 5 on the movable base 2 is released. After this biting is released, when the metal fitting 11 is disengaged from the groove 10b, the grindstone head main body 5 is free to both linearly slide and rotate via the guide plate 6, and when positioned at the inner diameter grinding position. slides in a large straight line until one of the grooves 10a corresponds to the metal fitting 11, engages the metal fitting 11 with the groove 10a, and tightens the bolt 12. In addition, the rotating movement of the grindstone head body 5 for grinding the tapered surface is controlled by the metal fitting 1.
1 is engaged with the groove 10b, the whetstone head main body 5 is rotated and the bolt 12 is tightened.

<Effects of the invention> As described above, according to the invention, the screw shaft can easily release the jamming of the slide table, which is placed on the movable base and guided by the guide plate so as to be able to slide linearly and pivotably. This has the effect of smoothing the linear sliding and turning movement of the slide base, and by disengaging and disengaging the metal fitting that engages with the screw shaft, the linear sliding motion of the slide base can be large and quick.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view of the main part of the present invention, and FIG. 2 is a view taken in the direction of the arrow in FIG. 2...Moving base, 5...Whetstone head, 6...Guide plate, 7...Pivot, 8...Nut, 9
...screw shaft, 10a, 10b...groove, 11...metal fitting.

Claims (1)

[Scope of utility model registration request] A guide plate is rotatably provided on a movable base, a slide base is guided so as to be linearly slidable on the guide plate, and is rotatably placed on the movable base via the guide plate, and a nut is mounted on the guide plate. A screw shaft is screwed into this nut with the axis facing the linear sliding direction of the slide base, a groove for positioning the slide base is recessed in the circumferential direction on the screw shaft, and a groove for positioning the slide base is recessed in the circumferential direction. A slide table moving device characterized in that a metal fitting that engages and disengages from a groove is pivotably mounted.