JPH05340U - Machine tool splash guard - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Opening and closing movement composed of multiple sheets that are guided by a track installed above the opening of the splash guard that surrounds the machining area of the machine tool and suspended by this track. During the opening / closing operation of the door, prevent mutual collision and swing of these moving doors. [Structure] An opening for loading and unloading a workpiece of a splash guard that surrounds a machining area of a machine tool, a fixed cover formed around the opening, and movable to open and close so as to cover the opening. Attached to the first moving door or the second moving door, and is always in sliding contact with the first moving door or the second moving door to provide the first moving door. Is configured so as to follow the second moving door when the first moving door is moved, and only the first moving door is moved when the second moving door reaches the moving end.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is arranged so as to be movable with respect to a fixed portion of a splash guard in order to shield an opening provided in a splash guard surrounding a machining area of a machine tool, and prevents a shock generated when a plurality of moving doors collide with each other. A splash guard for a machine tool having a function.

[0002]

[Prior Art]

 When machining a work piece with a machine tool, etc., chips and cutting agents may scatter during processing, contaminating the area around the machine tool and causing danger to the operator. The processing area is surrounded by a splash guard. However, since the splash guard needs an opening for loading and unloading the workpiece, it is shielded by a movable door that can be opened and closed during processing, and such a movable door is installed on the track installed above. It is movably supported by an upper roller that rolls and a lower roller that rolls in a lower guide groove. Also, the larger the opening, the better the workability. Although the moving door for blocking the large opening will also be large, the splash guard should be small in order to save the installation area of the working machine. Therefore, if a single moving door is used, the moving door protrudes from the splash guard body when the opening is open.Therefore, a moving door with multiple moving doors is used. Is configured to be stored on one fixed cover side of the splash guard. However, when such a moving door is composed of a plurality of moving doors when opening and closing, when one moving door is moved, the other moving door contacts one moving door and moves following one moving door. Most of them have a configuration.

[0003]

[Problems to be solved by the device]

 However, when moving a two-door moving door, the other moving door is moved by abutting the contact part formed on one moving door and the other moving door and moving one moving door. Are moving. Therefore, when one of the moving doors was moved fast, the one moving door and the other moving door collided with each other, and a collision sound was generated. Since the other moving door is in a free state except that it abuts at the abutting part, repeated contact between the end of the moving door guide part and the abutting part of one door near the open / close end. However, there was a problem that the opening / closing operation was not smooth. This invention solves such a problem and provides a splash guard capable of smoothing the opening and closing by eliminating the noise caused by the collision of the abutting portions of two movable movable doors.

[0004]

[Means for Solving the Problems]

 The above object of the present invention can be achieved by the following configurations. The configuration of the present invention is a splash guard which is provided so as to surround the machining area of a machine tool and which prevents scattering of cutting chips and cutting agents during machining, is formed on one surface of this splash guard, and carries in and out workpieces. Opening, a fixed cover formed around the opening, a first movable door movably provided to open and close so as to cover the opening, and the first movable door. And a second moving door that is provided so as to be openable and closable in the moving direction of the first moving door and covers the opening in cooperation with the first moving door, and the second moving door or the second moving door. It is attached to the first moving door and is always in sliding contact with the first moving door or the second moving door, and when the first moving door is moved, the second moving door is made to follow and move, and When the moving door of 2 reached the moving end A splash guard of a machine tool comprising a sliding member that moves only the first moving door.

[0005]

[Action]

 When loading and unloading a work piece into and from the machining area of a machine tool, a two-piece movable door that closes the opening of the splash guard is opened and closed. When blocking the opening, the first moving door that moves a long stroke is moved. A sliding contact member is attached to the second moving door, and its tip is in sliding contact with the first moving door. Therefore, the second moving door also moves following the first moving door due to the frictional force between the sliding contact member and the first moving door. When the second moving door reaches the moving end, slippage occurs between the first moving door and the sliding member, and only the first moving door moves, and when the second moving door reaches the moving end, two openings move. Shielded by the door.

[0006]

【Example】

 1 is a front view of a splash guard according to the present invention, FIG. 2 is a sectional view taken along the line II--II of FIG. 1, and FIG. 3 is an enlarged explanatory view of a main part of a moving door according to the present invention. Reference numeral 1 is a splash guard that surrounds the machining area of a machine tool, and has an opening through which a worker can carry in and out a workpiece, and the upper portions of fixed covers 2a and 2b provided on both sides of this opening. A track 3 is laid across the space. A first moving door 4 having an upper roller 6 rolling on the track 3 is disposed on the upper side, and an upper roller rolling on the track 3 is provided inside the first moving door 4. A second moving door 5 with 7 on top is arranged. Lower rollers 4b and 5b are attached to the lower end edges of the first moving door 4 and the second moving door 5 and are slidably inserted into a guide groove 10 formed in a splash guard fixing portion. The first moving door 4 and the second moving door 5 are movable by the upper rollers 6 and 7 and the lower rollers 4b and 5b. The opening is formed so as to be blocked by the movement of the first moving door 4 and the second moving door 5. The first moving door 4 has bent portions 4a, 4a formed by bending both ends of the side portion. Reference numeral 8 is a sliding contact member, which is fixed to the contact portion 5a of the second moving door 5 at two upper and lower positions with bolts 9, 9. The tip of the sliding contact member 8 is in sliding contact with the inner surface of the first moving door 4, and when the first moving door 4 is moved, due to the frictional force between the sliding contact member 8 and the first moving door 4, , The second moving door 5 is moved following the first moving door 4. When the second moving door 5 reaches the moving end, it slides between the sliding contact member 8 and the inner surface of the first moving door 4, and only the first moving door 4 moves. The sliding contact member 8 may be a leaf spring made of an elastic metal body, but may be made of another material having elasticity. Reference numeral 11 denotes a drive cylinder in which the tip of the rod 12 is fixed to a fixed portion 13 fixed to the upper portion of the first moving door 4, and is installed on the fixed cover 2b. This is an automatic opening / closing drive mechanism for the first movable door 4. Reference numeral 14 is a handle provided on the first moving door 4 for manual opening and closing.

The opening / closing operation of the moving door of the splash guard according to the present invention will be described below. After the work piece is carried into the processing area from the opened opening, the work piece is fixed to the work attachment jig, the drive cylinder 11 is operated, and the first cover stored on the fixed cover 2a side is fixed. When the movable door 4 is moved, the upper roller 6 provided on the upper portion of the first movable door 4 rolls on the track 3 provided between the fixed cover 2a and the fixed cover 2b and is guided to move. At the same time, the lower roller 4b of the first moving door 4 also rolls in the guide groove 10 so that the first moving door 4 moves. By the frictional force between the sliding contact member 8 and the second moving door 5, the second moving door 5 follows the first moving door 4 and is guided to roll on the upper roller 7 on the track 3. On the other hand, the lower roller 5b rolls and moves in the guide groove 10. At this time, the tips of the sliding contact members 8, 8 arranged at the upper and lower positions on the inner side of the first moving door 4 and the second moving door 5 are the inner sides of the first moving door 4 by the elastic force of the sliding contact material. It is pressed against and causes frictional force.

Since the second moving door 5 has a shorter moving stroke, it reaches the moving end first and is stopped at the moving end. The first moving door 4 further moves while sliding at the contact portion between the sliding contact members 8, 8 and the first moving door 4, and eventually the first moving door 4 also reaches the moving end, and the driving cylinder 11 moves. Driving also stops. That is, the opening is shielded by the first moving door 4 and the second moving door 5. When opening the opening, the drive cylinder 11 may be operated in the opposite direction to move the first moving door 4 in the opening direction. When the second moving door 5 is moved to the moving end by the sliding contact members 8 and 8, a slip occurs between the sliding contact members 8 and 8 and the first moving door 4, and only the first moving door 4 is moved. Move to open the opening. In this way, since the first moving door 4 and the second moving door 5 do not collide with each other, no bumping sound is generated. Further, since the second moving door 5 is not in the free state, it is possible to prevent the contact between the moving end and the first moving door 4 in the vicinity of the open / close end from being repeatedly moved many times. Allows smooth opening and closing of the moving door. In this embodiment, the sliding contact member is mounted on the second moving door side, but it may be mounted on the first moving door side and slidably contact the other second moving door. In addition, although the example of the movable door that is automatically opened and closed by the drive cylinder has been described, it goes without saying that the movable door may be a manually opened and closed movable door.

[0009]

[Effect of the device]

 As described above, in the splash guard according to the present invention, the sliding contact member is arranged between the two moving doors that are opened and closed to prevent collision between the moving doors. It has the effect of being able to move smoothly without hitting any sound.

[Brief description of drawings]

FIG. 1 is a front view of a splash guard according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged explanatory view showing a main part of the moving door of the present invention.

[Explanation of symbols]

 1 ... Splash guard 2 ... Fixed cover 3 ... Track 4 ... First moving door 5 ... Second moving door 6 ... Upper roller 7 ... Upper roller 8 ... Sliding contact member 9 ... Bolt 10 ... Guide groove 11 ... Drive cylinder

Claims (1)

[Claims for utility model registration] [Claim 1] A splash guard which is provided so as to surround a machining area of a machine tool and which prevents scattering of chips and cutting agents during machining, is formed on one surface of the splash guard. An opening for carrying in and out a workpiece, a fixed cover formed around the opening, and a first movable door movably provided to open and close so as to cover the opening, A second moving door which is provided adjacent to the first moving door so as to be openable and closable in the moving direction of the first moving door and which cooperates with the first moving door to cover the opening;
Attached to the first moving door or the first moving door, and is always in sliding contact with the first moving door or the second moving door to cause the second moving door to follow when the first moving door is moved. A splash guard for a machine tool, comprising a sliding contact member that moves and moves only the first moving door when the second moving door reaches the moving end.