JP3019759U - Stopper mounting structure for centerless grinding machine - Google Patents

Abstract

(57) [Summary] [Purpose] To enable fine adjustment of the stopper holder in the up / down, left / right, and front / rear directions. [Constitution] By rotating the up-down adjustment knob 8, the connecting plate 3
The horizontal support rod 9 is vertically moved up and down in front of the. Also,
By rotating the left-right adjustment knob 16, the vertical support rod 17 is moved in the left-right direction on the front surface of the horizontal support rod 9. Furthermore, by rotating the front-back adjusting knob 24, the holder 25 of the stopper supported on the rearward projecting portion 17a of the upper end of the vertical support rod 17 is moved in the front-back direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stopper mounting structure in a centerless grinding machine.

[0002]

[Prior art]

 In a centerless grinding machine, a stopper supports one side of the workpiece in the axial direction during grinding, but it is ideal that the stopper abut on the center of the end surface of the workpiece. As a result, the machining accuracy of the work, especially the roundness, can be kept uniform and highly accurate.

However, the conventional stopper has a problem in terms of processing accuracy because the holder for holding the stopper cannot be finely adjusted in the vertical, horizontal, and front-back directions. In particular, when the work is an extremely thin work such as a shaft having a diameter of 1 mm or less, it is impossible to machine with high precision.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and enables the holder to be finely adjusted in the vertical, horizontal, and front-back directions to maintain high precision even when processing an extremely fine work. The purpose is to provide a stopper mounting structure that is capable of

[0005]

[Means for Solving the Problems]

 Therefore, the gist of the present invention is to provide a support substrate that is fixed in a state in which it protrudes forward from a support table in a centerless grinding machine, and a front projecting portion at the upper part, and vertically shift the position of the front end of the support substrate. Connection plate that can be fixed by fixing, a screw shaft that is vertically supported on the front projection of the connection plate, and has a head as an up-down adjustment knob, and a female screw with which the screw shaft of the connection plate is screwed. And a horizontal protrusion provided at the end opposite to the connecting plate and provided on the front face of the connecting plate so as to be slidable in the vertical direction orthogonal to this, and the horizontal supporting rod. A horizontal shaft is horizontally supported on the front overhanging part of the, and a screw shaft with the head as a left and right adjusting knob and a female screw to which the screw shaft of the horizontal support rod engages are engraved. To the front of the upper end, A vertical support rod is provided on the front surface of the horizontal support rod so as to be slidable in the left-right direction so as to be orthogonal to it, and horizontally supported in the front-rear direction by the upward protrusion of the vertical support rod, and the head serves as a front-back adjustment knob. A female screw for engaging the screw shaft with the screw shaft of the vertical support rod is engraved, and a stopper is fixed to the tip end of the vertical support rod, and the horizontal support rod is provided on the protruding portion of the vertical support rod toward the rear side. It is a stopper mounting structure in a centerless grinding machine that is composed of a stopper holder that extends in parallel with and is slidable in the front-rear direction.

[0006]

[Action]

 Next, the operation of the present invention will be described. The setting on the support base is performed by projecting the support substrate in front of the support base and fixing it with screws. Then, after that, the connecting plate provided at the front end of the support substrate is vertically shifted to perform rough positioning.

This work is performed by loosening the adjusting screw that is screwed into the female screw engraved on the supporting substrate in a state where it is inserted into the longitudinal long hole of the connecting plate, and after appropriately positioning and tightening again.

On the other hand, the stopper is inserted into the stopper insertion hole provided in the holder, and is adjusted to an appropriate position in the front / rear direction and then fixed with the adjusting screw.

After the setting is completed, the position of the stopper can be finely adjusted as follows. First, the fine adjustment in the vertical direction will be described. This is performed by turning the vertical adjustment knob. That is, when the screw shaft vertically supported on the front projection of the connecting plate is rotated by turning the vertical adjustment knob of the head, a female screw with which the screw shaft is screwed is engraved. The horizontal support rod moves vertically.

Next, the fine adjustment in the left-right direction will be described. In this case, rotate the left and right adjustment knobs. That is, when the screw shaft horizontally supported in the left and right direction on the front projecting portion provided at the end of the horizontal support rod opposite to the connecting plate is rotated by rotating the left and right adjusting knob of the head, A vertical support rod on which a female screw with which the screw shaft is screwed is engraved moves in the left-right direction.

Finally, the fine adjustment in the front-rear direction will be described. In this case, turn the front and back adjustment knobs. That is, when the screw shaft horizontally supported in the front-rear direction on the upward projecting portion on the front surface of the upper end of the vertical support rod is rotated by rotating the front-rear adjustment knob of the head, the female screw with which the screw shaft engages The holder of the stopper engraved with is to move forward and backward.

[0012]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a front view of an embodiment of the present invention set in a centerless grinding machine, FIG. 2 is a left side view of the same, FIG. 3 is a plan view of the same, and FIG. 4 is a front view of an embodiment of the present invention. 5 is a left side view with a part omitted, FIG. 6 is a right side view with a part omitted, and FIG. 7 is a plan view.

In the figure, reference numeral 1 denotes a supporting substrate, which is fixed in a state in which the supporting substrate in the centerless grinding machine is projected forward. Incidentally, 2 is a screw for fixing the supporting substrate 1. Moreover, a female screw 1a is formed on the front end of the supporting substrate 1. Reference numeral 3 denotes a connecting plate provided on the front end of the supporting substrate 1 so as to be slidable in the vertical direction, and has a longitudinal elongated hole 4 formed therein. A front projecting portion 5 is provided on the upper portion of the connecting plate 3.

Reference numeral 6 denotes an adjusting screw which is inserted into the long hole 4 of the connecting plate 3 and which is screwed into the female screw 1 a engraved on the supporting substrate 1. Reference numeral 7 denotes a screw shaft that is vertically supported by the front projecting portion 5 of the connecting plate 3. Reference numeral 8 is a vertical adjustment knob of the head of the screw shaft 7.

Reference numeral 9 is a horizontal support rod having a U-shaped axial cross section, which is provided on the front surface of the connecting plate 3 so as to be orthogonal to the front surface of the connecting plate 3 so as to be vertically slidable. The horizontal supporting rod 9 is pressed against the connecting plate 3 with a proper pressure by using a screw 10 and a spring 11. Furthermore, the horizontal support rod 9 is engraved with a female screw 12 with which the screw shaft 7 is screwed, and a front projecting portion 13 is provided at the end opposite to the connecting plate 3. Further, the connecting plate 3 and the horizontal supporting rod 9 are provided with a guide hole 14 and a guide pin (not shown) fitted therein. Reference numeral 15 denotes a screw shaft horizontally supported in the leftward and rightward direction on the front projecting portion 13 of the horizontal support rod 9. Reference numeral 16 is a left and right adjusting knob of the head of the screw shaft 15.

Reference numeral 17 denotes a vertical support rod having a U-shaped axial cross section, which is provided on the front surface of the horizontal support rod 9 so as to be orthogonal to the horizontal support rod 9 so as to be slidable in the left-right direction. There is. The vertical support rod 17 is pressed against the horizontal support rod 9 with a proper pressure by a screw 18 and a spring 19. Further, the vertical support rod 17 is engraved with a female screw 20 with which the screw shaft 15 is screwed, and an upper projecting portion 21 is provided on the front surface of the upper end portion. Further, the horizontal support rod 9 and the vertical support rod 17 are provided with guide holes 22 and guide pins (not shown) fitted therein.

Reference numeral 23 denotes a screw shaft horizontally supported in the front-rear direction on the upper protruding portion 21 of the vertical support rod 17. Reference numeral 24 is a front-back adjusting knob for the head of the screw shaft 23. Reference numeral 25 denotes a holder having a U-shaped cross-section, which is provided so as to extend in parallel with the horizontal support rod 9 on the rearwardly projecting portion 17a of the upper end of the vertical support rod 17 and to be slidable in the front-rear direction. .

Further, the holder 25 is provided with a stopper insertion hole 26 penetrating in the front-rear direction at the tip end side thereof, and an adjusting screw 27 for adjusting and fixing the stopper in the front-rear direction. Further, the holder 25 is pressed by a screw 28 and a spring 29 to the rearward projecting portion 17a of the upper end of the vertical support rod 17 with appropriate pressure. Further, the holder 25 is engraved with a female screw 30 with which the screw shaft 23 is screwed. In addition, a guide hole 31 and a guide pin (not shown) fitted to the guide hole 31 are provided in the rear projection portion 17a of the upper end of the vertical support rod 17 and the holder 25.

Reference numeral 32 is a stopper which is inserted into the stopper insertion hole 26 of the holder 25. 33 is a support for the centerless grinding machine, 34 is an adjusting wheel, 35 is a rotary drive shaft of the adjusting wheel, 36 is a pulley fixed to the rotary drive shaft 35, 37 is a drive motor, and 38 is a rotation of the drive motor 37. A pulley fixed to the shaft and a belt 39 wound around the pulleys 36 and 37. 40 is a blade, 41 is a pressing roller, 42 is an arm of the pressing roller 41, and 43 is a support shaft of the arm 42. The grinding wheel is omitted in the figure.

[0020]

[Effect of device]

 Since the present invention has the structure and operation as described above, the holder of the stopper can be finely adjusted in the up / down, left / right, and front / rear directions. Therefore, it is particularly effective when machining a very fine work piece, and it is possible to machine this with high precision.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention set in a centerless grinding machine.

FIG. 2 is a left side view of an embodiment of the present invention set in a centerless grinding machine.

FIG. 3 is a plan view of an embodiment of the present invention set in a centerless grinding machine.

FIG. 4 is a front view of an embodiment of the present invention.

FIG. 5 is a left side view showing a partially omitted embodiment of the present invention.

FIG. 6 is a right side view showing an embodiment of the present invention with a part thereof omitted.

FIG. 7 is a plan view of an embodiment of the present invention.

[Explanation of symbols]

 1 Support Substrate 3 Connection Plate 4 Long Hole 5 Front Overhang 6 Adjusting Screw 7 Screw Shaft 8 Vertical Adjusting Knife 9 Horizontal Support Rod 12 Female Screw 13 Front Overhanging Part 15 Screw Shaft 16 Left / Right Adjusting Slide 17 Vertical Support Rod 17a Rear Side Overhanging part 20 Female screw 21 Upper overhanging part 23 Screw shaft 24 Front-rear adjustment knob 25 Holder 27 Adjusting screw 30 Female screw 32 Stopper

Claims (1)

[Scope of utility model registration request] 1. A support substrate in a centerless grinding machine, which is fixed in a state of overhanging forward from a support base, and a front overhanging portion provided at an upper portion, which is fixed to the front end of the support substrate by vertically shifting the position. A possible connecting plate, a screw shaft vertically supported on the front projecting portion of the connecting plate and having a head as a vertical adjustment knob, and a female screw with which the screw shaft of the connecting plate engages are engraved. A front projecting portion is provided at the end opposite to the connecting plate, and a horizontal supporting rod is provided on the front surface of the connecting plate so as to be slidable in the vertical direction orthogonal to the front projecting portion. Is horizontally supported, the head has left and right adjusting knobs, and a screw shaft with which the screw shaft of the horizontal support rod is screwed is engraved, and a protruding portion to the rear side is provided at the upper end. Together with an upper projecting portion on the front surface of the upper end, the front surface of the horizontal support rod A vertical support rod that is slidable in the left-right direction orthogonal to this, and a screw shaft that is horizontally supported in the front-rear direction on the upward projecting portion of the vertical support rod and whose head is a front-back adjustment knob; A female screw with which the screw shaft of the vertical support rod is screwed is engraved, and a stopper is fixed to the tip end of the vertical support rod so that it is parallel to the horizontal support rod on the rearwardly projecting portion of the vertical support rod. Stopper mounting structure in a centerless grinding machine consisting of a stopper holder that is extended and slidable in the front-back direction.