JPS634592Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Field of industrial use This invention relates to a grinding device, specifically a double-head surface grinding device that indexes a workpiece between rotating grindstones and uses both grindstones to simultaneously grind both sides of the workpiece. be.

B. Prior Art FIGS. 1 to 3 show conventional examples of the above-mentioned double-head surface grinding device. Grinding wheels 10 and 11 are respectively mounted on both grinding wheels 8 and 9 so that their grinding surfaces face each other, An index table 13 is provided with an index plate 12 that rotates intermittently or continuously between the two grinding wheels 10 and 11 in a plane perpendicular to the rotational axes 5 and 6 of the two grinding wheels 10 and 11, which is integrally formed at the lower front of the main body frame 7. The workpiece is supported and indexed by an index plate 12 between upper and lower grindstones 10 and 11 facing each other, and both surfaces of the workpiece are simultaneously ground by both grindstones 10 and 11.

By the way, in the above-mentioned double-headed surface grinding device,
In order to improve mechanical rigidity, the main frame 7 has a box-shaped structure with a space in the center of the front surface that is open only on the front side. However, at the lower front of the main body frame 7 there is an index table 13 that supports the index plate 12 and is equipped with a drive device and the like for driving the index plate 12.
Conventionally, the index table 13 has been integrally formed with the main body frame 7. Therefore, when replacing, repairing, inspecting, etc. the grindstones 5, 6 and their surrounding parts, the index plate 12 gets in the way and it is necessary to remove the index plate 12 from the index table 13 for maintenance. The drawback was that it was very troublesome.

C. Purpose of the invention This invention is useful for replacing, repairing, inspecting, etc. the grindstone of a double-head surface grinding machine and its surrounding parts.
The index plate and the index table are moved to a position where they do not interfere with the work, allowing the work to be carried out smoothly and maintenance to be facilitated.

D. Structure of the invention This invention is an index table equipped with an index plate, an index mechanism thereof, an oscillation mechanism, etc. in a double-head surface grinder having a box-shaped body frame with a space that opens only on the front side. One side is rotatably connected to one side of the index table at the lower front of the main body frame via a hinge, and the other side of the index table is connected to the other side of the index table at the lower front of the main body frame. This is removably connected to the other side corresponding to the side, and when the index table is rotated around the hinge, the index plate can be moved to a position where it does not interfere with the work. This makes it easier to replace, repair, and inspect the parts.

E. Embodiments The embodiments of this invention will be described below with reference to FIGS. 4 to 6. In the drawing,
Reference numeral 21 designates a main body frame, which has a space 22 in the center of the front surface of which only the front side is open.
6 are arranged with their ground surfaces facing each other. 27 and 28 are the grindstones 2 at opposing shaft ends.
5 and 26, respectively, are supported by the main body frame 21 and connected to electric motors 31 and 32 via respective transmission mechanisms 29 and 30, so that when the electric mechanisms 31 and 32 are driven, each The rotating shafts 27 and 28 are rotated via the transmission mechanisms 29 and 30, and the grindstones 25 and 26 are rotated. 33 is both whetstones 2
The rotating shaft 2 of both grinding wheels 25 and 26 is located between the wheels 5 and 26.
An index plate 34 rotates intermittently or continuously in a plane perpendicular to 7 and 28. Reference numeral 34 is an index table that supports the index plate 33 and has its index mechanism, oscillation mechanism, etc. built-in. The other side 34b is rotatably connected to the main body frame 21 via a hinge 35, and the other side 34b is detachably connected to the main body frame 21 via an attachment/detachment fitting 36.

In the above configuration, the index table 34
When the detachable fitting 36 connecting the other side 34b and the main body frame 21 is unlocked and the other side 34b side is pulled toward you, the index table 34 rotates about the hinge 35 as shown in the dashed line in FIG. 6. Along with this, the index plate 33 also rotates and escapes from the front side of the main body frame 21 to the side.

F. Effects of the invention In this invention, an index table 34 equipped with an index plate 33 and its index mechanism, oscillation mechanism, etc. is rotatably connected at one side 34a to the front surface of the main body frame 21 via a hinge 35, and the other side is 34b are removably connected via the attachment/detachment fitting 36, a space is formed where only the front side is open in order to improve mechanical rigidity, and the grinding wheels 25, 26 can be used even in a double-head surface grinder having a box-shaped body frame. When replacing, repairing, inspecting, etc. the index table 34 and its surrounding parts, the index table 34 can be rotated around one side 34a to move the index plate 33 out of the way of the work. can be carried out smoothly and maintenance can be improved.

[Brief explanation of the drawing]

1 to 3 are drawings showing a conventional example of a double-head surface grinding device, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. 4 to 6 are drawings showing an embodiment of the double-head surface grinding device of this invention, FIG. 4 is a front view, FIG. 5 is a side view thereof,
FIG. 6 is a plan view. 21...Main frame, 25, 26...Whetstone,
33... Index plate, 34... Index table, 35... Hinge, 36... Detachable fitting.

Claims (1)

[Claims for Utility Model Registration] The body frame has a box-shaped structure with a space that opens only on the front side, and a pair of grindstones are disposed vertically facing each other in the space of the body frame, and the space between the two grindstones is In a double-head surface grinding device that carries a workpiece into the workpiece using an index plate or a continuous rotating plate and simultaneously grinds both sides of the workpiece using both of the grindstones, the above-mentioned index plate or continuous rotating plate and its drive mechanism are provided. The table is separated from the main body frame, and the base end of the table is pivotally connected to the main body frame so that the table can rotate relative to the front surface of the main body frame in a direction orthogonal to the grinding wheel axis, and the other end is pivoted to the main body frame. A double-head surface grinding device characterized by being removably fixed to a frame.