JPH0744366Y2 - Lid mounting device for centrifugal casting mold - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a centrifugal casting mold lid attachment device for attaching a ring-shaped lid to the mouth of a centrifugal casting mold.

[Conventional technology]

Conventionally, when attaching a lid to a centrifugal casting mold,
There is only a crane for suspending the ring-shaped lid coated with the mold coating agent.For this reason, to attach this lid, suspend the lid with the crane and place it near the mouth of the centrifugal casting mold. After that, the lid was manually fitted from the lateral direction into the annular recess of the mouth of the centrifugal casting mold by hand. The lid fitted in the annular recess exerts a sealing function via a coating agent. Therefore, in order to prevent the molten metal from leaking due to scratches of the mold coating agent, it is necessary to perform these lid mounting operations carefully so as not to hit the lid with anything else.

[Problems to be solved by the device]

However, since the clearance between the edge of the mouth and the lid is very small, according to the above-mentioned conventional mounting means, it is not possible to suspend the
Accurately manually fitting a lid as heavy as 0 kg into the annular recess was very laborious and careful.
Moreover, when performing such delicate manual installation work, there is a high risk of putting the lid on the mouth, and the layer of the coating agent applied to the lid may be scratched to hinder the sealing function. there were.

The object of the present invention is to accurately and accurately handle even a heavy lid.
It is an object of the present invention to provide a centrifugal casting mold lid attachment device that can be easily fitted and attached to the mouth portion of a centrifugal casting die without requiring labor.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a characteristic structure of a centrifugal casting mold lid attachment device of the present invention is that a base is provided with a swivel base that can be driven and swiveled around a vertical axis, and its tip is vertically and laterally provided. Is provided on the swivel base, and a holding member for holding the lid is provided on the distal end side of the arm so as to be rotatable around a horizontal axis, and the holding member is provided on the horizontal axis. A drive device that rotates around is provided, and an engaging portion that engages with an opening portion of the lid and that suspends and supports the lid is provided on the holding member, and regulates relative movement of the lid with respect to the holding member. The means is provided in the holding member, and the action and effect thereof are as follows.

[Action]

According to the above characteristic structure, as shown in FIG. 1, the holding member (27) is driven by driving the swivel base (13) and the arm (9).
By the three-dimensional movement of the device and the rotation operation of the holding member (27) around the horizontal axis (28) with respect to the arm (9) by the drive device (29), the posture suitable for attachment to the mouth portion (7) is obtained. The lid (2) held by the holding member (27) in the lateral direction can be smoothly moved to the mouth portion (7) without being obstructed by the edge (7b) of the mouth portion (7).

Since the engaging portion (30) that supports the lid (2) engages with the opening (2b) and is not located on the outer periphery of the lid (2), the edges () of the lid (2) and the mouth (7) ( Even if the clearance (C) with 7b) is small, it does not hinder the installation. Moreover, the lid (2) is supported by the engaging portion (30) in a suspended state, and the lid (2) and the holding member (2) are held by the restricting means (31).
The position of the lid (2) can be accurately controlled in order to regulate the positional deviation between the lid (2) and (7).

〔effect〕

Thus, according to the present invention, even with a heavy lid,
Accurate and effortless and easy to fit and attach to the mouth of a centrifugal casting mold, and attach these without damaging the layer of coating agent applied to the lid. It has come to provide a lid mounting device for a centrifugal casting mold that can perform work.

〔Example〕

 Next, an embodiment will be described with reference to FIGS.

FIG. 1 shows a work site using the lid mounting device (1) for a centrifugal casting mold of the present invention. The ring-shaped lid (2) coated with the coating agent is conveyed by the conveyor (3) so that the lid (2) can be easily removed by the mounting device (1).
The tilting mechanism (4) as shown in FIG. 1, FIG. 2 and FIG. The tilting tool (5) of the tilting mechanism (4) is formed in a bifurcated fork shape having a lid transfer roller on its upper surface, and from the space between the bifurcated parts, an engaging portion (30) and a regulating means (31) described later are formed. ), The lid (2) can be picked up. The lid (2) picked up by the lid attaching device (1) has a mouth (7) of a centrifugal casting mold (6) as shown in FIGS. 1 and 3.
It is transferred to the vicinity and attached in a state of being fitted into the annular recess (7a) of the mouth (7). The clearance (C) between the lip (7b) of the mouth and the lid (2) is the lid (2) made of molten metal.
This is a measure against the thermal expansion of the above. For example, the lid (2) having a diameter of 950 mm has a very small value of about 10 mm. The close contact surface (2a) of the lid (2) coated with the mold coating agent (8) is brought into close contact with the close contact surface (7c) of the annular recess (7a) coated with the mold coating agent (8), whereby the molten metal is melted. Demonstrate the sealing function against.

As shown in FIG. 1, the attachment device (1) is capable of pivoting an arm (9) whose tip can be moved up and down and back and forth around a vertical axis (Y), as will be described later. It is provided in the configured turning mechanism (10). The lid holding portion (11) at the tip of the arm can be freely moved in the three-dimensional direction.

The swivel mechanism (10) has a base (12) fixed to the floor,
A swivel base (13) is rotatably connected around a vertical axis (Y), and a swivel base (13) is driven and rotated by a desired angle by a motor (14).

The arm (9) has first and second parallel quadruple links (15),
(16), a drive link (17) for driving these links, and first and second actuators (1) composed of a telescopic cylinder for swinging them up and down and front and back.
8) and (19) are provided.

In the mounting structure of the first and second parallel quadruple links (15) and (16), the fixed link member (20) forming a part of the first parallel quadruple link (15) is attached to the swivel base (13). Second parallel quadruple link (16) fixedly provided with a tip link member (21) on the tip side
Is connected to the free end side of the first parallel quadruple link (15) so that the tip link member (21) is always kept in the same posture.

In the drive link (17), one end of the first drive link member (23) is pivotally attached to an intermediate portion of the first lower link member (22) of the first parallel four-link (15), One end of the second drive link member (25) is pivotally attached to an intermediate portion of the second lower link member (24) in the two parallel four-link (16), and these first and second drive link members (23) are provided. , (25) have their other ends pivotally attached to each other to form a drive reference point (26),
The second lower link members (22) and (24) and the first and second drive link members (23) and (25) form a parallel four-link structure.

The first actuator (18) has its cylinder portion (18a) pivotally attached to the swivel base (13) and its piston portion (18b) pivotally attached to the drive reference point (26). The second actuator (19) has its cylinder portion (19a) pivotally attached to the fixed link member (20) and its piston portion (19b) pivotally attached to the drive reference point (26). . Then, the first and second actuators (1
By extending and retracting 8) and (19) to move the drive reference point (26), the drive link (17) is passed,
The first and second parallel quadruple links (15) and (16) are vertically swung to move the tip link member (21) vertically and forward and backward.

As shown in FIGS. 1 and 2, the lid holding portion (11)
Has a holding member (27) for holding the lid (2) rotatably connected to the tip link member (21) of the arm (9) about a wrist shaft (28) which is a horizontal axis. Then, in order to rotate the holding member (27) around the wrist shaft (28) with respect to the tip link member (21), a third actuator (29) consisting of a telescopic cylinder is provided with the tip link member (2).
A lid (2) which is provided and held between 1) and the holding member (27)
The posture is adjustable horizontally or vertically.

The holding member (27) is provided with a hanging hook (30), which is an engaging portion that engages with the opening (2b) of the lid (2) and suspends and supports the lid (2), on the upper portion of the holding member (27). Electromagnets (31) as restriction means for restricting the relative movement of the lid (2) with respect to the (27) by adsorption are provided at two places on the lower left and right. The hanging hook (30) has an L-shape when viewed from the side, and in the locked state with the lid (2), the hook tip (30a) applies a close contact surface (2a) with a mold coating agent (8). The length of the hook tip (30a) is set so that it will not be scratched.

[Another embodiment]

 Next, another embodiment will be listed.

(A) As shown in FIG. 5, the regulating means (31) of the lid holding portion (11) is provided with movable hooks (31a) at the tips thereof.
The rod (31b) of the book is pivotally supported by the hanging hook (30), and the movable hooks (31a) are driven and separated from each other in the opening (2b) of the lid (2) to be movable in the opening (2b). The hook (31a) may be engaged to restrict the relative movement of the lid (2) with respect to the holding member (27).

(B) In the configuration of (a) above, the movable hook (31
By providing an electromagnet similar to that of the above embodiment instead of a), the distance between the electromagnet and the hanging hook (30) can be adjusted, and even if the lid (2) is different in size, it is surely regulated. be able to.

(C) In the configurations of (a) and (b) above, the length of the rod body (31b) is adjusted so that the distance between the movable hook (31a) or the electromagnet and the hanging hook (30) can be adjusted. The configuration may be adjustable.

(D) The restricting means (31) of the lid holding part (11) has four link members (31b) and a telescopic cylinder (3) as shown in FIG.
2) is used to form a link mechanism, and the hanging hook (30) is attached to the first pivot portion (31c) located above the link mechanism.
The movable hook (31a) is provided on the second pivotal support portion (31d) located on the lower side, and the third pivotal support portion (31e) located on the tip end side of the link member (31b) and the holding portion. A retracting cylinder (32) provided between the member (27) may be contracted to separate the hanging hook (30) from the movable hook (31a) to hold the lid (2). Good.

In such a configuration, by disposing at least one of the hanging hook (30) and the movable hook (31a) having a large width, it is possible to effectively prevent the positional displacement due to the rotation of the lid (2). Therefore, the regulation means (31)
Need not be provided in two places on the left and right. As described above, various modifications can be made to the specific configuration of the regulating means (31).

(E) The arm (9) is not limited to the link mechanism, and a slide operation tool such as a ball screw may be used to drive the lid holding portion (11) at the tip of the arm (9) up and down and back and forth. Various modifications can be made to the specific configuration of the arm (9).

(F) The turning mechanism (10) fixes the base (12) to the ceiling,
The swivel base (13) and the arm (9) may be installed so as to be suspended.

In the claims for utility model registration, reference numerals are given for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the reference numerals.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a centrifugal casting mold lid attaching device showing a partial longitudinal section, FIG. 2 is a front view of an essential part, and FIG. 3 is a longitudinal sectional view of an essential part. , FIG. 4 is a plan view of the tilting mechanism, and FIGS. 5 and 6 show another embodiment of the main part,
FIG. 5 is a front view and FIG. 6 is a side view. (6) …… Centrifugal casting mold, (7) …… Mouth part, (2) ……
Lid, (12) …… base, (Y) …… upper and lower axis core, (13) ……
Swivel, (27) …… holding member, (9) …… arm, (2
8) ... horizontal axis, (29) ... drive device, (2b) ... opening, (30) ... engaging part, (31) ... restricting means.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B66C 23/68

Claims (1)

[Scope of utility model registration request] 1. A centrifugal casting mold lid attachment device for attaching a ring-shaped lid (2) to a mouth portion (7) of a centrifugal casting die (6), the device comprising: a base (12); A swivel base (13) that can be driven and swiveled around a vertical axis (Y) is provided, and an arm (9) whose tip can be driven and moved vertically and laterally is provided on the swivel base (13), and the lid ( A holding member (27) for holding 2) is attached to the end of the arm (9) on the horizontal axis (28).
A drive device (29) that is rotatably provided around the arm (9) for rotating the holding member (27) around the horizontal axis (28) is provided on the arm (9), and the opening of the lid (2) is provided. The holding member (27) is provided with an engaging portion (30) for suspending and supporting the lid (2) by engaging the portion (2b), and the relative movement of the lid (2) with respect to the holding member (27). A lid mounting device for a centrifugal casting mold, wherein a regulating means (31) for regulating is provided on the holding member (27).