JPS61278652A - Advance suppressing apparatus for turning roll - Google Patents

Abstract

PURPOSE:To suppress the advance of a rotary body by installing a ball which turns with a driving shaft onto it and meshing the inner gear of a driving turn ing roll with the crowning gear of the ball and swinging the driving turning roll. CONSTITUTION:A ball 18 which turns with a driving shaft 4 is installed, onto said driving shaft 4, and the inner gear 19 of a driving turning roll 5 is engaged with a crowning gear 17 formed onto the surface of the ball. While, a turnable ring 21 is installed onto the side-surface boss part of the driving turning roll 5, and an advance/retreat member 22 contacts with the ring 21. If the driving turning roll 5 is swung by advancing and reatreating the advance/retreat mem ber 22, when a rotary body begins to advance, said advance of the rotary body in the axial direction can be suspended.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a turning roll that prevents a rotating body such as a cylinder or a circular object rotated by a turning roller from moving in the axial direction. This relates to a walking stop device.

[Conventional technology]

The turning roll supports a rotating body mounted on a driving turning roll on a driving base and a driven turning roll on a driven base, and while the rotating body is rotated by the drive of the driving turning roll, welding and cutting are performed on the rotating body. , plating, painting, etc.

[Problem that the invention seeks to solve]

If the rotating body moves in the axial direction, there is a problem that the rotating body is not machined to the desired position and the rotating body is damaged, and if the rotating body continues to rotate, accidents such as the rotating body falling from the turning roll may occur. Ta.

The axial movement of the rotating body mentioned above is caused by the fact that the axis of the rotating body is not horizontal, but even if the axis of the rotating body is horizontal, the driving turning roll on which the rotating body is placed It can also be caused by the driven turning roll being unbalanced. In addition, even if both turning rolls are balanced and the axes of the rotating body are parallel, problems such as welding on the rotating body, scratches on the rotating body, processing accuracy of the rotating body, etc. may cause the rotating body to become perfectly round. The shape of the rotating body also causes axial movement. Therefore, it is impossible to avoid axial movement of the rotating body.

[Means for solving problems]

In order to solve the above problems, the present invention provides a bow μ with a crowning gear that rotates together with the drive shaft on the outer periphery of the drive shaft of the drive stand, and connects the inner gear provided on the drive turning roll to the crowning gear. In addition, a driving turning roll is swingably provided on the outer periphery of the driven shaft of the driven table via a pole, and a freely rotating ring is provided at the end of the driving turning claw μl' slave 111 turning roll, and both rings move forward and backward. It is constructed by connecting the ends of the members.

[Effect]

When the rotating body moves in the axial direction, the reciprocating member moves back and forth to draw in or push out the ring, causing the driving turning roll and the driven turning roll to swing.

〔Example〕

As shown in FIGS. 1 and 2, a rotating body 3 such as a cylinder or a circular object is placed on a driving table 1 and a driven table 2, which are installed parallel to the floor or the like at a predetermined interval. ing.

On the drive stand 1, there is a pair of drive turning grooves with drive shafts 4, 4' parallel to the axis of the rotating body 3.
Also, on the driven table 2, there is a pair of driven turning rows with driven shafts 6, 6' parallel to the axis of the rotating body 3.
L'7t7' are provided respectively.

The drive shafts 4, 4' are driven by a motor 8 as shown in the figure.
A spline shaft 9 driven by a spline shaft 9, a worm gear 11 in which a central spline hole 10 is fitted into the spline shaft 9, and a worm wheel/l which is meshed with the worm gear 12 and fixed to the ends of the drive shafts 4 and 4'. '12, the motor 8Vc drives the spline shaft 9, and the worm gear 11 drives the worm wheel/L'.
Although rotation in the same direction is transmitted to the drive shafts 4, 4' through the drive shafts 12, other methods may be used.

As shown in the figure, a bearing 13 for the driving shaft 4° 4' is provided on the 7c drive stand 1, and a bearing 14 for the driven shaft 6° 6' is provided on the driven stand 2 so as to be slidable. A male thread 15 with a left-hand thread facing toward the direction and a right-hand thread facing toward the other end is supported by the above-mentioned bearings 13 and 14.
By screwing in 6, the bearings 13 and 14 are moved while rotating the male screw 15 according to the diameter of the rotating body 3, and the driving turning rows Lv4 and 4' and the driven turning row /L'7, The distance between 7 can be adjusted freely.

In addition, a crowning gear of 17 bows/L/18 is attached to the outer periphery of the drive shafts 4 and 4# and rotates together with the drive shaft 4°4'.
This crowning gear 17 meshes with an inner gear 19 of a drive turning row tvs*5' which swings using the spherical surface of the bow 1v18 as a guide.

Further, the driven turning row/L/7 e 7' can swing freely using the spherical surface of the bow (v20) provided on the outer periphery of the driven shafts 6, 6' as a guide.

In addition, a free rotating ring 2 is installed at the end of the driving turning row/l'5.5' and the driven turning row/I/7t7'.
1 is provided, and the end of a reciprocating member 22 is connected to each ring 21.

In the illustrated case, the reciprocating member 22 described above is formed by screwing the screw shaft 25 into the screw hole 24 of the bearing 13° 14 and connecting the end of the screw shaft 25 to the ring 21 via the universal joint 26, but other methods may be used. It may be moved forward or backward by.

In the figure, 27 is a member for preventing the ring 21 from slipping out.

The turning roll according to the present invention has the above configuration, and its operation will be explained next.

The rotating body 3 is placed on the driving table 1 and the driven table 2, and is supported by the driving turning row/L'515' and the driven turning roll 7.7'.

When the drive shafts 4 and 4I are driven, the turning row/L15#5' is driven from the rotating bow/L'1B through the crowning gear 17 and the inner gear 19.
Since the rotation is transmitted to , the rotating body 3 rotates.

At this time, the driven turning row /v7 t 7' is rotating due to contact with the rotating body 3.

Here, when the rotating body 3 moves in the axial direction, the advancing/retracting member 22
The silling 21 is pulled in or pushed out by the advancing and retracting operations, thereby swinging the driving turning row/I15°5' and the driven turning row/L/7*7'.

The above rocking is continued until the rotating body 3 stops moving.

Further, the rocking may be performed manually or automatically (not shown) in conjunction with a detection mechanism that operates as the rotating body 3 moves.

〔effect〕

As described above, according to the stopping device for a turning roll according to the present invention, when the rotating body moves in the axial direction, the ring is pulled or pushed out by the forward and backward movement of the advancing and retracting member, thereby moving the driving turning roll and the driven turning roll, respectively. Since the pole is used as a guide to swing and prevent the rotating body from moving, problems caused by misalignment of the rotating body can be eliminated when performing welding, cutting, etc. of the rotating body.

In addition, the drive shaft is provided with a pole that rotates with the drive shaft, and the crowning gear of this pole is engaged with the inner gear of the drive turning roll, so even if the drive turning roll is oscillated, there is no problem from the drive shaft to the drive turning roll. Rotation can be transmitted.

[Brief explanation of the drawing]

The drawings show an example of this invention, and FIG. 1 is a front view;
Figure 2 is a plan view of the same, Figure 3 is a side view of the drive base, Figure 5 is a side view of the driven base, Figure 5 is an enlarged vertical front view of the drive base, and Figure 6 is an enlarged vertical front view of the driven base. 7 are partially cutaway enlarged side views of the reciprocating member. 1... Drive stand, 2... Follower stand, 3... Rotating body, 4
゜4'... Drive shaft, s, s'... Drive turning roll, 6.6... Driven shaft, 7, 7'... Driven turning roll, 8... Motor, 9... Spline 111.10... Spline hole, 11... Worm gear, 12... Worm wheel, 13... Bearing, 14... Bearing, 15... Male thread, 16... Female thread, 17... Crowning gear, 18-... Paul, 19... Gear, 20... Paul, 21...
Ring, 22... Advance/retreat member, 24... Screw hole, 2S
...screw shaft, 26...joint, 27...retention member Fig. 3 Fig. 5 Fig. 7 Fig. 6 1 piece b 15

Claims (1)

[Claims] In a turning roll consisting of a drive stand provided with a pair of driving turning rolls rotationally driven by a drive motor, and a driven stand provided with a pair of driven turning rolls,
A ball with a crowning gear that rotates together with the drive shaft is provided on the outer periphery of the drive shaft of the drive base, and an inner gear provided on the drive turning roll is engaged with this crowning gear, and a ball is provided on the outer periphery of the driven shaft of the driven base. A turning roll characterized in that a driving turning roll is swingably provided, and a freely rotating ring is provided at the ends of the driving turning roll and the driven turning roll, and the ends of a reciprocating member are connected to both rings. A walking stop device.