JPS634582Y2 - - Google Patents

Description

[Detailed description of the invention] A. Industrial application field This invention is a workpiece mounting device, for example, when polishing the back side of multiple types of bevel gears (workpieces), the bevel gears are quickly mounted on the rotating main shaft. The present invention relates to a mounting device that is fixed and allows quick setup changes when converting bevel gears.

B. Prior Art When polishing the back side of a bevel gear, devices shown in FIGS. 5 and 6 have conventionally been used. In the figure, 1 is a cylindrical rotating main shaft rotatably supported by a main body casing 2 via a roller bearing 3, 4 is a mounting board fixed to the rotating main shaft 1 via bolts 5, and 6 is the front surface of the board 4. An inwardly inclined conical protrusion is arranged around the center of the circular concave surface 4a at the center of the side, 7 is a positioning screw engaged with the mounting shaft 6a of each protrusion 6, 8 is the main shaft 1 A clamp rod is disposed on the axis of the main shaft through a cylinder 9 loaded therein, and has a tip shaft portion 8a penetrating the substrate 4 and projecting outward; 10 is at the tip of the tip shaft portion 8a of the clamp rod 8; The formed groove 8
11 is a sleeve interposed between the tip shaft portion 8a and the base plate 4 and fixed to the base plate 4 via bolts 12; 13 is a cylinder The ejector shaft 14, which penetrates the body 9 and the substrate 4 and projects outward, is fixed to the tips of the ejector shafts 13, 13 via bolts 15, 15, and is fitted onto the outer surface of the outwardly protruding portion of the sleeve 11. The ring-shaped protruding plates 16a and 16b are sliding rings. Therefore, both the clamp rod 8 and the ejector shaft 13 can be moved forward and backward in the axial direction by the cylinder mechanism, and when the clamp rod 8 moves forward, the clamp piece 10 moves toward the sleeve 1.
From a clamped position in which the pin 17 provided in the groove 11a of the sleeve contacts the sleeve 11 and both ends protrude outward from the sleeve 11 as shown by the solid line, to a non-clamped position in which the entire sleeve 11 is housed inside the outer periphery as shown in the dashed line. 90° rotational displacement.

The bevel gear 18 to be polished is fitted into the sleeve 11 with the clamp rod 8 advanced and the clamp piece 10 in the non-clamped position, and then inserted into the pin 17 of the sleeve 11 by retracting the clamp rod 8. The bevel gear 18 is attached to the substrate 4 via the clamp piece 10 which has been erected and is in a clamping position.
Attract to the side. As a result, the tooth space 1 of the bevel gear 18
The tip of the protrusion 6 is fitted into 8a, and the bevel gear 18 is fixed to the base plate 4 so that it cannot move in the axial direction or rotate in the circumferential direction. Thus, while driving the main shaft 1 in this fixed state and rotating the bevel gear 18 together with the base plate 4,
The tip of the grinding wheel 19 is brought into contact with the back surface 18b of the bevel gear 18 for polishing. After the machining is completed, the clamp rod 8 is advanced to house the clamp piece 10 in the sleeve 11, and then the ejector shaft 13 is The bevel gear 18 is moved forward by the ejecting plate 14.
is removed from the sleeve 11.

However, in the conventional configuration described above, when machining multiple types of bevel gears, it is necessary to match the outer diameter of the sleeve 11 and the position of the protrusions 6 to the bevel gear 18 to be machined. It is necessary to perform a setup change to replace the substrate 4 and sleeve 11 equipped with the same. However, when changing the lever setup, the clamp piece 10 and the sleeve 11 interfere,
In addition, since the ejector plate 14 interferes with the sleeve 11 and the board 4, after pulling out the pin 10a and removing the clamp piece 10, the bolts 15 are removed and the ejector plate 14 is removed, and then the bolt 5 is removed and the board 4 is removed. Then, a new board 4 and sleeve 11 were attached to the rotating main shaft 1 and the tip shaft portion 8a of the clamp rod 8, and thereafter the setup was changed by performing the reverse operation to the above. As described above, conventional methods have been extremely laborious and required work that requires a great deal of time and effort.

C. Purpose of the invention The purpose of this invention is to provide a mounting device that can save labor and time by reducing the number of steps required to change setups when changing gear types when polishing multiple types of bevel gears. It is said that

D. Structure of the invention This invention is divided into a cylindrical rotating main shaft rotatably supported by a casing, a rear board and the board corresponding to the workpiece, and the rear board is attached to the front of the rotating main shaft, and the front A mounting board having a board removably attached to the front surface of the rear board, a clamp rod that is arranged concentrically within the rotational main shaft and that is movable in an axial direction that penetrates the mounting board, and an inner part that can be separated from each other. It consists of a cylinder and an outer cylinder that corresponds to the workpiece, and is interposed between the base plate and the clamp rod.The rear end of the inner cylinder is attached to the rear base plate, and the rear end of the outer cylinder is attached to the front base plate. A sleeve to which a workpiece is mounted on the outer circumferential surface of the sleeve, and a pivoting rod provided at the tip of the clamp rod. When clamped, it stands up and both ends protrude outward from the sleeve's outer cylinder, and when not clamped, it falls down and closes the sleeve's inner cylinder. and a clamp piece housed within the mounting device.

When changing the setup, the above mounting device advances the clamp rod to knock down the clamp piece, stores the clamp piece in the inner cylinder of the sleeve, then removes the outer cylinder of the sleeve and the front board of the mounting board, and then The setup change is completed by attaching a new front board and outer cylinder to the rear board and inner cylinder, respectively, and attaching the front board to the rear board.

E. Example Hereinafter, an example of this invention will be described based on FIGS. 1 to 4. Incidentally, in this embodiment, the same reference numerals are given to the same parts as in the conventional structure shown in the fifth and sixth illustrations, and the explanation thereof will be omitted.

As shown in the figure, the base plate 4 has a rear base plate 21 fixed to the rotation main shaft 1 via bolts 20 . Board 2
A front board 24 is detachably attached to 1.
It is divided into two parts. However, Tsuko 6...
is attached to the front board 24.

On the other hand, the sleeve 11 includes an inner cylinder 26 fixed to the rear board 21 via bolts 25, and bolts 25.
The outer tube 28 is fixed to the front base plate 24 via the outer tube 7 and has a closed outer end. Thus, the outer cylinder 28 can be separated by sliding outward in the axial direction with respect to the inner cylinder 26. Also, clamp piece 10
The pin 17 for rotationally displacing the clamp piece 1 is provided on the inner cylinder 26 side, and the outer shape of the inner cylinder 26 is as shown by the dashed line in FIG.
0 is set to a diameter that does not protrude from the outer peripheral surface.

Furthermore, the ejector shafts 13, 13 and the ejector plate 14
means the protruding pieces 14a, 1 on both sides of the protruding plate 14.
4a is provided with notched grooves 29, 29 that are open on one side in the circumferential direction, and the bolts 15, 1 are inserted through the grooves 29, 29.
5 into the ejector shafts 13, 13. Therefore, both 13 and 14 can be separated by rotating the ejector plate 14 while loosening the bolt 15 without removing it.
Note that the ejector shafts 13, 13 and the protruding plate 14 do not necessarily have to be provided.

In the above configuration, in order to polish the bevel gear 18, the bevel gear 18 is fitted into the tip recess 30a of the loader 30 as shown in FIG. The operation is the same as in the conventional case described above. For example, when switching to polishing bevel gears 31 of different sizes, as shown by the dashed line in the first figure, the setup change is performed by moving the clamp rod 8 forward, knocking down the clamp piece 10, and inserting the clamp piece 10 into the inner cylinder 26 of the sleeve 11. Then, after loosening the bolts 15, 15 provided on the ejector shaft 13 and removing the ejector plate 14, the clamp piece 1 is removed.
0, in the unclamped position, pull out the bolts 23 that connect the front board 24 and the rear board 21, and remove the front board 24 and the outer cylinder 28 from the rear board 21 and the inner cylinder 26 while keeping them together. Next, the front board 24 and outer cylinder 28 corresponding to the bevel gear 31 are attached to the rear board 21 and the inner cylinder 26, and the bolts 23 are tightened to attach the front board 24 to the rear board 21. In other words, due to changes in inner thickness corresponding to each gear type,
A large number of front boards 24 with different outer diameters and different arrangements of protrusions 6, 6, etc. are prepared, and setup is changed by converting these.
1 and the inner cylinder 26 are commonly used for polishing different types of gears without being removed.

In the above embodiment, the rear board 21 and the front board 2
4 are fitted together through the annular taper part 22, so it is extremely easy to attach and detach the front board 24, and when it is attached, it is guided by the annular taper part 22 and precise centering is automatically performed. It has the advantage of being On the other hand, since the fitting part 1a between the substrate 4 and the rotating main shaft 1 is generally not tapered, when attaching and detaching the two at the fitting part 1a as in the past, it is very difficult to attach and detach the two, and It is not easy to center the time.

F. Effect of the invention In the mounting device according to this invention, the mounting board for fixing the bevel gear is divided into a rear board on the rotating main shaft side and a front board that is detachable from the rear board, and the bevel gear is externally fitted. The sleeve to be inserted has a double structure, consisting of an inner cylinder fixed to the rear board and an outer cylinder fixed to the front board, which can be separated from each other. It can be carried by the substrate and the outer cylinder. Therefore, when changing the gear type to be machined, only the front board and the outer cylinder need to be replaced, and both can be attached and detached as a single unit, and the clamp piece is housed in the inner tube during this attachment and detachment. Since the clamp piece does not interfere with the outer cylinder or the front board, there is no need to remove the clamp piece, so the number of setup change operations is reduced, and the labor and time required for this operation can be greatly reduced.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view showing an embodiment of a mounting device for polishing a bevel gear according to this invention, Fig. 2 is a front view of the main part of the embodiment, and Fig. 3 is a bevel gear for a sleeve in the embodiment. A cross-sectional side view showing the gear fitting operation, FIG. 4 is a cross-sectional view taken along the - line in FIG. 3,
FIG. 5 is a cross-sectional side view of a conventional example of a polishing mounting device, and FIG. 6 is a front view of essential parts of the conventional device. DESCRIPTION OF SYMBOLS 1... Rotating main shaft, 4... Mounting board, 6... Protrusion, 8... Clamp rod, 10... Clamp piece, 11... Sleeve, 13... Ejector shaft,
14... Ejector plate (ejector), 18... Bevel gear, 18a... Tooth groove, 18b... Back part, 21
...Rear board, 24...Front board, 26...Inner cylinder, 28...Outer cylinder.

Claims (1)

[Scope of utility model registration request] It is divided into a cylindrical rotating main shaft rotatably supported by a casing, a rear board and a front board that corresponds to the workpiece.The rear board is attached to the front of the rotating main shaft, and the front board is attached to the front of the rear board. a mounting board removably attached to the rotating main shaft; a clamp rod that is arranged concentrically within the rotating main shaft and is movable in an axial direction that penetrates the mounting board; and a clamp rod that is slidably fitted to the tip of the clamp rod. equipped inner cylinder,
It consists of an outer cylinder that is separably fitted into the inner cylinder, and the rear end of the inner cylinder is attached to the rear board, and the rear end of the outer cylinder is attached to the front board, and the workpiece is attached to the outer circumferential surface of the outer cylinder. It is swingably provided at the tip of the sleeve to be attached and the clamp rod, and when clamped, it stands up and both ends protrude outward from the sleeve's outer cylinder, and when it is not clamped, it falls down and is accommodated in the sleeve's inner cylinder. A workpiece mounting device characterized by comprising a clamp piece.