JPH0585541U - Vertical saddle vertical support device for surface grinder - Google Patents

Abstract

(57) [Abstract] [Purpose] With the spindle head of the grindstone fixed to the main machine column, the rotary support of the surface grinder is used to set the grinding dimension by the rotary lifting of the table on the lower surface of the grindstone. A bearing is placed on the shaft, and the support shaft and the bearing center are not easily maintained in the accuracy of squareness and parallelism in the bottom saddle and intermediate saddle that are attached respectively. [Structure] A support shaft (6), which serves as a fulcrum of rotation of the table (1) and the intermediate saddle (2), is attached to the V-groove shaft seat (7) at the end of the bottom saddle (4) with respect to the bottom saddle (4). Adjust the squareness and parallelism, fix it with the shaft cover (8), and project the shafts (9) on both sides of the support shaft (6) and two lateral sides provided at the end of the intermediate saddle (2). The bearing (11) is interposed between the bearing case (10) and the bearing case (1
0) is processed by adjusting the upper surface side and one side surface of the attachment to the intermediate saddle (2) and screwed so that the perpendicularity and parallelism of the table (1) and the intermediate saddle (2) with respect to the support shaft (6) are obtained. Characterized by the fact that

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a precision maintaining structure of a rotary fulcrum in a surface grinder in which a grinding dimension is set by a rotary elevation of a table when a grindstone spindle head is vertically fixed. ..

[0002]

[Prior Art]

 Overall appearance

[Fig. 1] In the table (1), the reciprocating operation of the feed screw (3) on the intermediate saddle (2) and the vertical movement adjusting screw (1) provided at one end of the bottom saddle (4) The vertical movement of the intermediate saddle (2) according to 5) determines the thickness of the workpiece to be ground on the table (1). The pivot point of the intermediate saddle (2) for vertical rotation is the bottom surface. The supporting shaft (6) provided at the end of the saddle (4) and the V-groove shaft seat (7) are joined together, and the V-groove sliding surface contact portion is adjusted to make a right angle and parallel to the related parts. It was designed to maintain the accuracy of degree.

[0003]

[Problems to be solved by the device]

 This had the following drawbacks. (A) The joint sliding method of the support shaft (6) and the V-groove shaft seat (7) makes it possible to accurately move the bottom saddle (4), the table (1) and the intermediate saddle (2) vertically. The adjustment of the angle and parallelism could be achieved easily by modifying the V-groove, but as the joint was used violently, the joint sliding contact area was narrow, resulting in uneven wear. As a result, the accuracy has to be corrected frequently. (B) Since the sliding part turns at an extremely slow speed, there was no lubrication reducing effect. The present invention has been made to eliminate these drawbacks.

[0004]

[Means for Solving the Problems]

 The support shaft (6), which serves as a pivoting support point of the table (1) and the intermediate saddle (2), is attached to the V-groove shaft seat (7) at the end of the bottom saddle (4) with respect to the bottom saddle (4). Two side bearings, which are fixed to the shaft cover (8) by adjusting the squareness and parallelism, and which are provided at both ends of the support shaft (6) and the intermediate saddle (2). The bearing (11) is interposed between the case (10), and the bearing case (10) is machined and adjusted on the upper surface side and one side surface for mounting to the intermediate saddle (2), and the table (1) and the intermediate The saddle (2) was screwed and assembled so as to obtain the perpendicularity and parallelism with respect to the support shaft (6). The present invention is an intermediate saddle vertical rotation support device having the above-described configuration.

[0005]

[Action]

 The table (1) is formed by rotating the feed screw (3) provided on the intermediate saddle (2) by the handle (12) protruding from the bottom saddle (4) and the universal joint (13). The reciprocating motion is performed on the lower surface of the upper grindstone shaft (15) by the female screw (14) provided on the lower surface of the center of the table (1) to perform the grinding operation of the workpiece on the table (1). .. Further, if the intermediate saddle (2) is lifted by the rotation of the adjusting handle (16) with the vertical movement adjusting screw (5), the table (1) will be centered on the spindle (6) together with the intermediate saddle (2). When the grinding wheel is moved downward, it rises as a grinding allowance of about 1/2 of the amount of movement of the vertical movement adjusting screw (5) on the lower surface of the grindstone. In this type of surface grinding machine, the spindle head (17) of the grindstone shaft (15) is fixed to the machine body, and the grinding allowance is as described above, even if the grinding allowance is a little worn. ， It is done only by the rotation of the table. The vertical movement of the spindle head (17) is adjusted up and down by the head up / down handle (18) only when the number of steps on the grinding surface exceeds the wear. Generally, such grinding of steps due to wear is not performed.

[0006]

【Example】

 Hereinafter, examples of the present invention will be described. (A) Mount the support shaft (6) on the V-groove seat (7) at the end of the bottom saddle (4) by adjusting the squareness and parallelism with respect to the bottom saddle (4). (B) A bearing (11) is interposed between the two double-sided bearing cases (10) provided at the ends of the intermediate saddle (2) and the both-side protruding shafts (9) of the support shaft (6). (C) When mounting the bearing case (10) on the upper and side surfaces of the bearing case (10), the squareness and parallelism of the ends of the table (1) and the intermediate saddle (2) with respect to the spindle (6) should be obtained. ， Perform accurate adjustment processing on the above two sides. According to the above structure, the present plan provides the grinding accuracy by the rotation corresponding to the grinding allowance of the table (1) and the intermediate saddle (2) centering on the both-side protruding shaft (9) of the support shaft (6). The center shaft of the spindle (6) is attached to the V-groove shaft seat (7) provided at the end of the bottom saddle (4) having a grinding parallel reference corresponding to the width of the workpiece so as to keep the work. , It was fixed by adjusting the squareness and parallelism.

[0007]

[Effect of the device]

 Generally, the grinding allowance of a surface grinder is less than one grind, and at present, a small amount of grinding in micron units and the roughness and undulation of the ground surface are minimized to save labor in lapping finish in the next process. Has come to be requested. Contrary to the dimension setting method by lowering the grindstone axis, this machine is fixed to the spindle head (17), so there is no lateral run-out like the conventional spindle head, and the weight of the table side is pushed up. By using the dimension setting method according to, the ascending rise of the cutting dimension adjustment handle (16) and the vibration damping effect for weighting the table side are extremely good for the ground surface. You can get Therefore, in order to maintain the accuracy of this machine, the middle saddle (2) and the bottom saddle (4) are connected, and the bearing state of the support shaft (6) is maintained at a good perpendicularity and parallelism. The protruding shaft (9) of the support shaft (6) is fitted with a bearing that has good accuracy and durability, and the other connecting parts are fixed by abrasion and without loosening.

[Brief description of drawings]

FIG. 1 is an overall view of machines embodying the present invention.

FIG. 2 is a detailed front view of the working portion of the machine embodying the present invention.

FIG. 3 is a partial oblique view of the main parts of the present invention.

FIG. 4 is a partial oblique view of the main parts of the present invention.

FIG. 5 is a partial side view of main parts of the present invention.

FIG. 6 is a partial side view of main parts of the present invention.

[Explanation of symbols]

1 table 2 intermediate saddle 3 feed screw 4 bottom saddle 5 vertical adjustment screw 6 spindle 7 V groove bearing 8 shaft cover 9 protruding shaft 10 bearing case 11 bearing 12 handle 13 universal joint 14 female screw 15 grindstone shaft 16 adjustment handle 17 spindle head 18 handle for head up and down

Claims (1)

[Scope of utility model registration request] 1. A table (1) and a support shaft (6), which serves as a fulcrum of rotation of an intermediate saddle (2), is attached to a V-groove seat (7) at the end of the bottom saddle (4). 4) The squareness and parallelism with respect to 4) are adjusted and fixed by the shaft cover (8), and both side protruding shafts (9) of the support shaft (6) and the intermediate saddle (2).
The bearing (11) is interposed between the two side bearing cases (10) provided at the ends of the bearings, and the bearing case (10) is mounted on the intermediate saddle (2) on the upper surface side and one side surface. Process and adjust the table (1) and intermediate saddle (2)
Saddle support device screwed so as to obtain the perpendicularity and parallelism with respect to the support shaft (6)