JP2537549Y2 - Slide cover mechanism of gear grinding device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a case where a spindle unit for holding a grinding wheel is turned in a gear grinding apparatus.
The present invention relates to a slide cover mechanism of a gear grinding device configured such that a slide cover is displaced in accordance with the operation and a mist-like grinding fluid including chips is not discharged to the outside of the device.

[0002]

2. Description of the Related Art In a gear grinding apparatus, a spindle unit holding a grindstone is turned by a turning table or the like, and the grindstone is positioned at a predetermined inclination angle with respect to a gear or the like positioned. By providing such a mechanism, gears of various shapes can be ground. Further, in the gear grinding device, in order to prevent a mist-like grinding fluid containing chips from being discharged to the outside of the device at the time of grinding and to prevent the working environment from deteriorating, the entire device is covered with a cover member. doing. Since the upper part of the spindle unit protrudes from the cover member, an opening is provided in the cover member so that the spindle unit can pivot. Therefore, an extensible slide cover member is provided in the opening so that the grinding fluid is not discharged out of the apparatus from the opening, and a tip end of the slide cover member is engaged with the spindle unit, and the turning operation is performed. The opening and closing of the slide cover member is closed by expanding and contracting the slide cover member.

[0003]

However, there is a possibility that mist-like grinding fluid containing cuttings generated in the grinding process adheres to the slide portion of the slide cover member, which hinders the smooth operation of the slide cover member. is there. As a result, when the slide cover member breaks down, the mist-like grinding fluid containing cuttings is discharged from the opening to the outside of the apparatus, which may deteriorate the working environment.

The present invention has been made to solve such a problem, and has as its object to provide a slide cover mechanism of a gear grinding device in which a slide cover member can be smoothly operated.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cover surrounding a gear grinding apparatus having a spindle unit pivotable in a vertical plane to adjust a grinding angle with respect to a workpiece. constitutes a part of the member, the slide cover mechanism which expands and contracts along with the turning of the spindle unit which projects from the cover member, wherein
Before protruding from the rectangular opening formed in the cover member
Surrounding the spindle unit and the spindle unit
The two sides parallel to the unit turning direction are the length of the opening.
Machine cover that slides on both wall surfaces extending in two directions
And the other two sides intersecting the two sides of the machine cover
Surface of the spindle unit,
A shutter mechanism for closing said opening and response, the sheet
Comprising a displacement means for driving the Yatta mechanism, wherein the finisher
The mechanism is connected to the other two sides of the machine cover.
It is provided along the longitudinal direction of the opening by touching
In a slidable multiple slides cover and mutually engage the ends, the provided on the slide cover, rollers which roll along the parallel disposed a guide rail in the turning direction of the spindle unit and, have, the strange
Positioning means, along the longitudinal direction of said opening via fluid pressure
A movable displacement member, and a displacement member provided on the displacement member,
A slide cover that contacts the other two sides of the machine cover.
An arm member engaged with the claw portion provided in the bar, the <br/> Rukoto that have a characterized.

[0006]

In the slide cover mechanism of the gear grinding device according to the present invention, the grindstone meshes with the gear at a predetermined angle by rotating the spindle unit in the gear grinding device. At this time, the slide cover is displaced by activating the displacement means to roll the rollers. Therefore, the slide cover smoothly expands and contracts via the roller by the displacement means, and ensures that the mist-like grinding fluid including cuttings is discharged to the outside from the gear grinding device regardless of the inclination angle of the spindle unit. To block.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a slide cover mechanism of a gear grinding device according to the present invention will be described below in detail with reference to the accompanying drawings.

First, the overall structure of the gear grinding device will be schematically described with reference to FIG. 1, and then the slide cover mechanism will be described.

As shown in FIG. 1, a gear grinding device 10 comprises:
A cutting table 12 is provided on the upper surface of the bed 11. The cutting table 12 is configured to be able to advance and retreat in the direction of arrow A under the rotation of the cutting motor 14. The cutting table 12
A traverse table 16 is further provided on the upper surface of the traverse motor 1.
8, it is configured to be able to advance and retreat in the direction of arrow B perpendicular to the direction of arrow A. A work holding mechanism 19 is provided on the traverse table 16, and a gear, that is, a work 20, and a work sensor 21 near the work 20 are provided.
Is arranged. The work 20 is rotated by a work spindle motor 22. The work sensor 21 counts the number of teeth of the work 20 rotated by the motor 22, for example,
A predetermined pulse is generated by optical detection. Thereby, it is determined whether the work 20 is a predetermined work. On the other hand, the moving direction of the cutting table 12 and the bed 1
1, a column 24 is provided, and a turning table 26 is held on the column 24. The turning table 26 is turned in the direction of arrow C by the turning motor 25. Note that an encoder 23 is provided to detect a turning angle of the turning table 26. Furthermore, on the front of the turning table 26,
The shift table 28 is fitted into a groove 27 provided integrally with the turning table 26. This shift table 28
It is moved in the direction of arrow D by the shift motor 30. A whetstone spindle unit 32 is engaged with the shift table 28. The grindstone spindle unit 32 includes a grindstone rotation drive motor 34, a grindstone spindle 36 rotated by the motor 34, and a grindstone 38 held at the tip of the grindstone spindle 36. Whetstone 38
A thread-like groove is formed on the periphery.

[0010] The gear grinding apparatus 1 schematically constructed as described above.
Reference numeral 0 indicates that the entire apparatus is covered with a cover member 50 as shown in FIGS. An opening 52 is formed in the cover member 50, and a tip end portion of the spindle unit 32 that pivots in the direction of arrow C from the opening 52 projects outside. The machine cover 54 is also covered at the tip of the spindle unit 32.

As shown in FIG. 3, shutter mechanisms 56 and 58 are formed on both sides of a machine cover 54 projecting from an opening 52 of the cover member 50. As shown in FIG. 4, the shutter mechanism 56 has slide members 60a to 60f. Slide members 60a to 6
0e has an L-shaped cross section, and has a substantially box-like shape having side walls provided on both side surfaces thereof and having hollow portions 62a to 62e. The slide members 60a to 60f are
The slide member 60b can be stored in the hollow portion 62a of the slide member 60a, and the slide member 60c can be sequentially stored in the hollow portion 62b of the slide member 60b. A wall 64a at one end (hereinafter, referred to as a forward end) of the slide member 60a includes a roller 68 that rolls on a guide rail 66 provided on the cover member 50 side at a lower portion thereof. On the other hand, the other end of the slide member 60a (hereinafter, referred to as the slide member 60a).
A locking portion 70a is mounted on the rear end.
The slide member 60b has substantially the same configuration, but further includes a projection 72b on the wall 64b at the forward end. The slide members 60c to 60e are configured similarly to the slide member 60b. The slide member 60a has a claw 74a formed substantially at the center of the upper surface on the forward end side (FIG. 3).
And FIG. 4). The sliding members 60g to 60g
k, the shutter mechanism 58
And the same components include
The same reference numerals are denoted by reference characters b, and description thereof is omitted (see FIG. 3).

On the other hand, as shown in FIG. 3, along the longitudinal direction of the opening 52, ie, along the direction of displacement of the shutter mechanisms 56 and 58, the rodless cylinder mechanisms 76a, 76
b are provided with guide pipes 78a and 78b. Fluid pressure is supplied to the guide pipe 78a, and a moving body having a magnet therein is displaced. The displacement member 80a fitted outside the guide pipe 78a by the displacement of the moving body is also configured to be displaced in conjunction with the magnetic force. Further, an arm member 82a is formed from the displacement member 80a toward the slide member 60a, and an engaging member 84a is attached to a tip portion of the arm member 82a (see FIGS. 3 and 4). The engagement member 84a
As shown in FIG. 4, the claw portion 74a of the uppermost slide member 60a is sandwiched between the displacement member 80a and the slide member 6a.
0a is linked. The length of the guide pipe 78a is configured to displace the slide members 60a to 60f up to the limit turning angle α of the spindle unit 32 (see FIG. 2). The rodless cylinder mechanism 76b has the same configuration as the rodless cylinder mechanism 76a, and the same components are denoted by the same reference numerals and are denoted by reference character b, and description thereof is omitted (see FIG. 3).

The gear grinding device 10 constructed as described above
Is operated as follows.

First, the work 20 is mounted on the work holding mechanism 19. Subsequently, the cutting motor 14 and the traverse motor 18 are driven, and the work holding mechanism 19 is displaced to predetermined positions in the arrow A direction and the arrow B direction via the cutting table 12 and the traverse table 16.

On the other hand, on the grindstone 38 side, first, the swivel table 26 is turned to incline the grindstone 38 at a predetermined angle (in the direction of arrow C) with respect to the work 20. Next, the shift table 28 provided on the turning table 26 is displaced.

As described above, the turning table 26 and the shift table 28 are displaced to the predetermined positions, so that the grindstone 38 attached to the tip of the grindstone spindle unit 32 fixed to the shift table 28 is moved to a predetermined position. Positioned in position.

At this time, when the turning table 26 is turned, for example, when the grindstone spindle unit 32 is turned in the direction of arrow C1 in FIGS. 1 and 4, the rodless cylinder mechanism 76a is energized. The displacement member 80a is displaced in the direction of arrow E. The displacement member 80a interlocks the slide member 60a in the direction of arrow E because the claw portion 74a of the uppermost slide member 60a is held by the engagement member 84a via the arm member 82a. The slide member 60a is smoothly displaced by the roller 68 rolling on the guide rail 66, and stores the slide member 60b in the hollow portion 62a. When the wall portion 64a of the slide member 60a comes into contact with the projection 72b of the slide member 60b, the slide member 60b also starts displacing in the direction of arrow E. In this way, the slide members 60a to 60e are sequentially displaced to contract the entire shutter mechanism 56. On the other hand, as shown in FIG. 3, when the displacement member 80b is displaced in the direction of arrow E by urging the rodless cylinder mechanism 76b, the slide member 60g is displaced similarly to the shutter mechanism 56, and this displacement The sliding members 60h to 60j follow the shutter mechanism 5
Extend 8 Thus, even if the turning table 26 turns and the spindle unit 32 turns, the shutter mechanisms 56 and 58 are displaced accordingly, and the opening 52
Can be closed without exposing. Moreover,
The respective slide members 60a to 60e and 60g
Each of the rollers 60j to 60j includes the roller 68, so that even if the mist-like grinding fluid including the cutting chips adheres to the guide rail 66, the displacement is smooth.

In this manner, the work 20 and the grindstone 3
After the positioning of No. 8, the initial phase adjustment between the grindstone 38 and the work 20 is performed. Subsequently, the grindstone rotation drive motor 34 of the grindstone spindle unit 32 and the work holding mechanism 19
The work 20 is ground by synchronously operating the work spindle motor 22.

According to the slide cover mechanism of the gear grinding device according to the present embodiment, the shutter mechanisms 56 and 58 are displaced by the rodless cylinder mechanisms 76a and 76b,
Since the guide is guided by the rollers 68, the shutter mechanisms 56 and 58 are smoothly displaced without being affected even if the mist-like grinding fluid containing the cuttings adheres to the shutter mechanisms 56 and 58. Therefore, the gear grinding device 10
It is also possible to reliably prevent the mist-like grinding fluid containing cuttings from being discharged from the inside through the opening 52.

[0020]

According to the slide cover mechanism of the gear grinding device according to the present invention, the following effects can be obtained.

That is, in the slide cover mechanism provided for the cover member of the gear grinding device, a roller is provided on the guide rail, and the slide cover mechanism is displaced by the displacement means. Even if the grinding fluid is attached, the slide cover mechanism is smoothly displaced by the displacement means and the roller. By configuring the slide cover mechanism in this way, it is possible to reliably prevent the mist-like grinding fluid containing cuttings from being discharged from the gear grinding device to the outside.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a gear grinding device including a slide cover mechanism according to the present invention.

FIG. 2 is an explanatory cross-sectional view of the entire configuration of the gear grinding device including the slide cover mechanism according to the present invention.

FIG. 3 is a perspective view illustrating a configuration of a slide cover mechanism of the gear grinding device according to the present invention.

FIG. 4 is a partially sectional explanatory view of a slide cover mechanism of the gear grinding device according to the present invention.

[Explanation of symbols]

 Reference Signs List 10: Gear grinding device 32: Grinding wheel spindle unit 56, 58 ... Shutter mechanism 60a-60k ... Slide member 68 ... Roller 76a, 76b ... Rodless cylinder mechanism

Claims (1)

(57) [Scope of request for utility model registration] 1. A spindle unit, comprising a cover member surrounding a gear grinding device having a spindle unit rotatable in a vertical plane for adjusting a grinding angle with respect to a workpiece, wherein the spindle unit projects from the cover member. in slide cover mechanism which expands and contracts along with the the pivot, projects from a rectangular opening formed in said cover member
Surrounding the spindle unit, and
The two sides parallel to the turning direction of the dollar unit are
A square machine that slides on both walls extending in the longitudinal direction
A bar and two other sides intersecting the two sides of the machine cover
Provided corresponding to the turning posture of the spindle unit.
A shutter mechanism for closing the opening Te, and a displacement means for driving the shutter mechanism, the shutter mechanism, the other two of said machine cover
Along the longitudinal direction of the opening in contact with the side surface
Rutotomoni, a plurality of slide cover ends are slidable in and mutually engage, is provided in the sliding cover, roll along the parallel disposed a guide rail in the turning direction of the spindle unit And a roller , wherein the displacement means is disposed in a longitudinal direction of the opening through a fluid pressure.
A displaceable member movable along the displacement member, and the other of the machine cover provided on the displaceable member.
It engages with the claw provided on the slide cover that contacts the two sides.
Sliding cover mechanism for a gear grinding apparatus according to claim Rukoto that Yusuke an arm member for engagement, the.