JPH0711252U - Work processing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To easily replace the cutting tool without impairing the scattering prevention effect of cutting oil. [Structure] When the upper plate material 16'a of each shield plate 16 'is closed during the cutting work of the shaft portion 2a, the side and the upper part of the processed portion of the work 2 are covered, so that the cutting oil hits this shield plate 16'. , Its scattering is prevented. When the upper plate member 16'a of the shielding plate 16 'is opened, the upper parts of the cutting tools 14, 14' are widely opened, so that the cutting tools 14, 14 'can be easily replaced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a machining device for a work, and more particularly to a machining device for preventing scattering of cutting oil during machining of a shaft of a work.

[0002]

[Prior art]

 For example, when cutting a cotter groove in the shaft of an engine valve, in order to suppress the occurrence of work burning and to improve the surface roughness of the finished surface, supply cutting oil to that part. Work is being done.

2 to 3, (1) shows a conventional processing apparatus for the engine valve (2).

Each bearing (5) (5) provided in a pair of support stands (4) standing on the base stand (3) has a pulley (7) rotated by a belt (6). A rotary shaft (8), which is fixedly fitted with, is supported. A disc-shaped rotating body (9) that supports the umbrella portion (2b) of the engine valve (2) is integrally formed at one end (the right end in FIG. 2) of the rotating shaft (8). Reference numeral (10) denotes a cylinder body mounted on a fixed body (not shown), and a piston rod (10a) extending from the cylinder body (10) has a shaft portion (left side in FIG. A disk-shaped pressing member (loader head) (11) that supports and presses the end surface of 2a) is rotatably mounted via a bearing (not shown). (12) is lowered between the rotating body (9) and the pressing member (11) while holding the shaft portion (2a) of the engine valve (2), and then the rotating body (9) and the pressing member (11). 11) is a work finger that holds the engine valve (2) almost parallel to the upper surface of the base (3). On the upper surface of the base (3), there is provided a pair of tool rests (13) (13 ') that advance and retreat substantially at right angles to the shaft portion (2a) of the engine valve (2) that is clamped.

At the tip of one turret (13), a cutting tool (14) for roughing is first attached to the shaft portion (2a) for cutting, and the other turret (13 '). A bite (14 ') for finishing is attached to the tip of the shank (2a) for later cutting. Thus, by alternately feeding the turrets (13) (13 ') and pressing both bites (14) (14') alternately against the shaft (2a '), the cotter groove (annular groove) ( A) is formed. (15) is a supply nozzle that supplies cutting oil to the shaft portion (2a) during cutting.

In such a workpiece processing apparatus, if the cutting oil supplied to the cutting point during the workpiece processing is scattered around by the centrifugal force, the working environment is deteriorated, so the tool post (13) (13 ' ) Is equipped with a shielding plate to prevent scattering of cutting oil.

That is, (16) is a metal shielding plate for preventing scattering of cutting oil to the surroundings, and a rectangular plate member is bent inward in a substantially central portion, The lower half of the turret (13) (13 ') is bolted to the outer surface. When the tool post (13) (13 ') is advanced toward the workpiece during cutting of the shaft part (2a), the shaft part (2a) of the engine valve (2) is shown as shown by the imaginary line in FIG. The upper part of the machined part of is covered with both the shielding plates (16), and the cutting oil is prevented from scattering around. When the cutting of the shaft (2a) is completed, the tool rests (13) (13 ') move to both sides of the base (3), and then the work fingers (12) descend and the engine valve (2). The shaft part (2a) of () is gripped again, and the engine valve (2) is conveyed to the next step.

[0008]

[Problems to be solved by the device]

 However, since the conventional shield plate (16) described above is bolted to the tool rest (13) (13 ') with the tool (14) (14') always covered from above, the tool ( When trying to replace 14) and (14 '), the shield (16) becomes an obstacle. Therefore, it is necessary to loosen the bolts each time to attach and detach both shield plates (16), which makes the work of exchanging the bite cumbersome and lowers the productivity.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a machining device for a work, which enables easy exchange of the cutting tool and which is excellent in preventing cutting oil from splashing. To do.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a tool rest capable of advancing and retracting in a direction orthogonal to the axis on both sides of a rod-like work which is rotatably supported about a horizontal axis. Different types of cutting tools attached to the tip of the table are pressed against the shafts of the two types of work alternately, thereby cutting the outer peripheral surface of the shaft into a predetermined shape. In each of the turrets, a shielding position that can be opened and closed between a shielding position that covers the side and the upper side of the machining portion of the shaft portion and an open position that opens the upper side of the cutting tool by rotating outward. It features a board to solve the above problems.

[0011]

[Action]

 When both shield plates are closed to the shield position during the cutting work of the shaft, both sides and upper part of the machined part of the workpiece are covered, and it is possible to prevent the cutting oil from splashing around.

When the cover plate is opened to the open position, the upper part of the cutting tool is widely opened, so that the cutting tool can be easily replaced without disturbing its attachment and detachment.

[0013]

【Example】

 Next, an embodiment of the present invention will be described with reference to FIG. The same members as those described in the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 1, (16 ') shows a shielding plate mounted on the tool rests (13), (13'). The shielding plate (16 ') consists of a lower plate (16'b) fixed to the outer surface of the turret (13) (13') and an upper plate (16a) pivotally attached to its upper end with a hinge (17). ) And upper and lower rectangular plate materials. As shown by the solid line, each upper plate (16'a) is a shield that covers the upper part of the machined part when the two tool turrets (13) (13 ') advance toward the work, forming an inward shape. It is possible to relatively rotate about the hinge (17) between the position and an open position close to the outer surface of the lower plate (16'b) as shown by an imaginary line.

The inward angle of the upper plate member (16'a) is restricted by a restricting member (stopper piece) (18) fixed to the inner surface of the lower plate member (16'b).

With the above configuration, when the shaft portion (2a) of the engine valve (2) is cut and machined, the upper plate material (16'a) of the shield plate (16 ') is shown by the solid line in the shielding position. If you incline inward, the sides and top of the cutting part will be covered, preventing the cutting oil adhering to the work from splashing around, and avoiding the floor surface surrounding the processing equipment. There is no risk of soiling workers' clothes.

When the cutting tools (14) and (14 ') are to be replaced, the upper plate members (16'a) of the both shield plates (16) are outwardly moved to the open position as shown by the imaginary line. By turning, the upper parts of the cutting tools (14) and (14 ') are widely opened, so that the cutting tools (14) and (14') can be easily replaced.

When replacing the cutting tools (14) and (14 '), the upper plate members (16'a) of both shield plates (16') are outwardly moved to the open position as shown by imaginary lines. When the tool is turned to, the upper parts of the cutting tools (14) and (14 ') are widely opened, so that the cutting tools (14) and (14') can be easily replaced.

[0019]

[Effect of device]

 In the present invention, the shield plate can be opened and closed between the shield position that covers the machining part of the work shaft part and the open position that opens the upper part of the cutting tool, so that the cutting oil scattering prevention effect is not impaired and the cutting tool It can be replaced easily, improving the efficiency of the entire cutting work and increasing productivity.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.

FIG. 2 is a side view of a conventional workpiece processing apparatus.

FIG. 3 is a vertical sectional front view taken along line III-III of FIG.

[Explanation of reference symbols] (1) Work processing device (2) Engine valve (work) (2a) Shaft part (2b) Head part (3) Base (4) Support (5) Bearing (6) Belt (7) ) Pulley (8) Rotating shaft (9) Rotating body (10) Cylinder body (10a) Piston rod (11) Pressing member (12) Work finger (13) (13 ')
Turret (14) (14 ') Bit (15) Nozzle (16') Shroud (16'a) Upper plate (16'b) Lower plate (17) Hinges (18) Restriction bracket

Claims (1)

[Scope of utility model registration request] 1. A different type of tool mounted on a tip end of each of the two tool turrets, the tool turret being capable of advancing and retracting in a direction orthogonal to the axis of the rod-shaped work rotatably supported about a horizontal axis. A cutting tool for cutting the outer peripheral surface of the shaft into a predetermined shape by alternately press-contacting the cutting tool with the shafts of the two types of works. Of the work, which is provided with a shielding plate that can be opened and closed between a shielding position that covers the side and the upper side of the processing point of (3) and an open position that opens the upper side of the cutting tool by rotating outward. Processing equipment.