JPH072547Y2 - Clamping device for automatic reversal of square stone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a holding device for automatic reversal of a rectangular stone material.

(Prior Art) In polishing a square stone material, in order to perform polishing from rough cutting to final finishing of each surface, it is necessary to sequentially rotate from one surface to another surface. For this purpose, a vise mechanism is exclusively used as the holding means, and the joint surface material of the holding arm is subjected to uneven processing.

(Problems to be solved by the invention) By the way, the stone surface is a flat edge at first glance, but it is said that it is necessarily cut into a strictly right-angled surface among the three members of length, width, and height. However, there is a problem that the stone material is slightly moved at the gripping portion during the rotating work to change the gripping portion or the stone material slides down.

(Means for Solving Problems) The present invention is intended to solve the above problems in the automatic reversing work, and the holding device of the present invention has the following configuration.

Is 1,1 ¹ In Figure 1 shall apply support shaft for clamping the masonry 2 from both sides, formed by bearing respectively is journalled Napishtim 3,3 ^1.

The shaft 1 is supported by a bearing means 4 in a bearing housing 3 so that the shaft 1 can be rotated in a clockwise direction or a counterclockwise direction by a rotation means provided by a motor provided at a position on the other end side. It has become. Then, the tip end opposite to the stone material is formed in the reduced diameter portion 1a protruding from the bearing housing 3 by a certain length, and the reduced diameter portion 1a has a joining surface member 5 for contacting the stone surface. Is installed.

The joint surface member 5 is composed of a main body 5a and a sub body 5b which are divided into two parts, and concave cavities 6a and 6b are formed in the center which is a mating surface of the two and a key is provided at the peripheral edge of each concave cavity 6a and 6b. The steps 7a and 7b are formed.

Then, the main body 5a moves from the tip edge of the shaft 1 to the shaft 1 via the key 8.
It is fitted so as to rotate integrally with and is fixed by a retaining ring 9 so as not to come out, and the sub body 5b is attached to the main body 5a.
The concaves 6a and 6b so that they face each other, and the sub-body 5b
It is fixed by using several bolts and screws 10 from the side. In the fastening, the elastic packing 11 is formed by forming a constant gap e on the inner surface of the bolt head of the sub body 5b.
And the key steps 7a and 7b have spherical seats.
12a, 12b are arranged so as to be in line contact with each other, and a slight movement in a free direction of the sub body 5b is allowed by a cushioning member 11 such as an elastic packing fitted on the lower surface of the head of the bolt screw 10. It is becoming like this.

Meanwhile, the shaft 1 ¹ will be supported directly on Bearing Napishtim 3 ^1, and its position Fukukarada 5b stone 2 of the shaft 1 side so as to be fixed at an arbitrary position in the drive means provided on the other side position It is designed to hold pressure between and. Reference numeral 13 is composed of a main body 13a and a sub body 13b which are divided into two by a joining surface member for the stone material 2, and a concave cavity 14a14b is formed in the center inside which is a mating surface of the two.
Moreover, key steps 15a and 15b are formed on the peripheral portions of the recesses 14a and 14b.

Thus, main 13a is bushing 1 to the distal end reduced diameter portion 1 ¹ a of the shaft 1 ¹
6 and is of being adapted to be pivotally mounted through a ball bearing 17, thisゝthe bush 16 is formed is convex stepped portion 16a on the rear side, of the shaft 1 ¹ tip reduced diameter portion 1 ¹ a
Such as elastic toward the tip side spring plate 18 is interposed bushing 16 itself between at reduced diameter portion stepped portion m in the convex stepped portion 16a and the shaft 1 ¹ upon is fitted is applied to the connexion Further, by engaging with the locking plate 20 fixed by the bolt screw 19 at the position of the tip end thereof, the protrusion thereof is always prevented while giving a certain elasticity.

Thus, main 13a is of being secured rotatably through a ball bearing 17 to the front side of the convex stepped portion 16a of the bushing 16 (reduced diameter portion 1 ¹ a front end side), in particular main 13a A convex step K is formed inside the middle of the
It is rotatably supported by a plurality of bearings 17 (17a, 17b and 17c in the illustrated example) at a position on the front side of the convex step portion 16a. In this case, the main body 13a is arranged such that a ball bearing (17a in the illustrated example) on the tip end side of the bush 16 is engaged with the peripheral edge of the locking plate 20 on the bush 16 so that the bush 16
Similarly, it is said that the jumping out is prevented.

Numerals 22 and 23 are spherical seats, and when the sub body 13b is fixed to the front surface of the main body 13a, the key steps 15a and 15b formed in the concave cavities 14a and 14b of both sides are used to be fitted in a mating state. Let me do it. twenty one
Are attached at several positions in the circumferential direction with bolts and screws for fixing the sub body 13b to the main body 13a having the above structure. Therefore, a cushioning member 24, such as an elastic packing, is interposed between the inner surface of the bolt head and a cushioning member 24, and the abutting surfaces of the spherical seats 22 and 23 make a line contact. Along with that, a slight movement in a free direction is allowed. In the drawing, 25 and 25 ¹ are O-rings which are interposed at the peripheral ends of the main body and the sub body having the above-described two-divided structure, and 26 and 26 ¹ are attached to the upper surfaces of the sub bodies 5b and 13b. It is a non-slip material.

(Embodiment) FIG. 2 shows an example in which the sandwiching device having the above-mentioned configuration is attached to a gate-type stone reversing machine, and 30 is a beam and columns 31 and 31.
^It is supported so that it can move vertically with respect to ¹ .

Reference numerals 32 and 32 ¹ denote sliders that can be moved left and right by using the beam 30 as a guide. The sliders 3 and 3 ¹ are provided at the lower portions of the sliders.
It will by supported the clamping device 5 and 13 through, whereas the upper portion is a positive motor 33 ¹ is attached with the rack-and-pinion teeth is incorporated in the beam 30 (not shown) on the slider side, rotating in the reverse drive The distance l between the sub-members 5b and 13b of the holding devices 5 and 13 can be appropriately changed by meshing with a worm gear (not shown) that is moved.

34 is the other beam installed between the columns 31 and 31 ¹ , and 35 is a motor for driving the beam 34 so that it can be moved up and down appropriately with respect to the cylinders 36 and 36 ¹ which support the beam 30 by its drive. ing. Incidentally, 37, 37 ¹ rail 38 is configured as the thickness該台vehicle Uenodai Release 38a in carriage loosen the set screw 38b while carrying the stone 2 a horizontal rotation becomes freely There is. (Used to change the opposite side of the stone material 2 at any time) The stone material 2 runs from a stone polishing machine (not shown),
It is stopped at the position of the gate-shaped stone reversing machine, and subsequently, the motor 35 and the same 33, 33 ¹ are driven to lower the beam 30, and the sliders 32, 32 ¹ are moved in the left-right direction to hold it. The distance between the devices 5 and 13 facing each other is narrowed, and the side bodies, which are approximately the center of gravity of the stone 2, are pressed and held by the sub-members 5b and 13b.

Next, the beam 30 is raised to a constant height position, and the holding device 5 is appropriately rotated so that the desired surface of the stone material 2 is upward, and in that state, the beam 30 is lowered again to place the stone material 2 on the carriage. Place it on. As a result, the reversing work is completed, but the stone material 2 reaches the stone material polishing machine by the traveling of the dolly, and the polishing work is performed, and the same is repeated thereafter.

(Effect of the Invention) According to the gripping device of the present invention, each of the sub-members 5a and 13b, which abut on the side surface of the stone material when the stone material 2 is held and automatically rotated, is allowed to move in a free direction. Since it is configured so that it is possible to grip along the shape of the side surface of the stone material that was gripped, and accordingly, when the stone material is pressed and held to be lifted, the gripping point moves during the rotation. It does not cause problems such as imbalance and stones falling off.

[Brief description of drawings]

FIG. 1 is a detailed partial enlarged cross-sectional view of a stone reversing and holding device according to the present invention, and FIG. 2 is an embodiment diagram attached to a gate type stone reversing machine for use. 1, 1 ¹ ... Support shaft, 2 ... Stone material 3, 3 ¹ ... Bearing, 5 ... Joining surface member 5a ... Main body, 5b ... Sub body 11 ... Buffer material, 12a, 12b ... Spherical seat 13 ... Joining surface member, 13a ... Main body 13b ... Sub body, 16 ... Bush 18 ... Spring plate, 20 ... Locking plate 22,23 ... Spherical seat, 30 ... Beam 31,31 ¹ ... Post, 32,32 ¹ ... Slider 38 ... Bogie

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A holding device for sandwiching and inverting the opposite sides of a square stone material, wherein each holding device is divided into a main body and a sub body, and one is driven by a motor. The main body is attached to the shaft end so as to rotate integrally with the key, and the sub body is attached to the main body with a spherical seat on the opposing surface of the main body and the head bottom surface of the fastening screw bolt. Forms a fixed interval, and a cushioning member such as an elastic packing is inserted in the interval to fix the same. On the other hand, a fixed distance is applied to the side of the sub body with respect to the shaft for freely rotating the sub body by spring force of the spring. Is rotatably arranged via a ball bearing between the bush and the bush mounted so as to be slidable, and a spherical body is interposed between the sub body and the main body, and a head for a fastening screw bolt of the sub body. Form a constant gap on the lower surface and Reversing clamping device of the square stone, characterized in that the cushioning member such as a resilient gasket is to fastened HamaIri.