JP2500376Y2 - Machine tool protection device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool protection device in which a reciprocating cover device is covered above a machine tool guide surface, a ball screw, a feedback scale and the like.

[0002]

2. Description of the Related Art Generally, a cutting device and a dust are attached to a guide surface, a ball screw, a feedback scale, etc. of a machine tool.

An example of this type of cover device is shown in FIG.
The following are known. In the figure, reference numeral 101 is an apparatus main body such as a head of a machine tool.
Has a guide surface 102.

A movable body 103 such as a table is reciprocally mounted on the guide surface 102 of the apparatus main body 101, and a cover 104 formed of a single plate covering the guide surface 102 is provided on both sides of the movable body 103. , 104 are fixedly attached.

A telescopic type cover device is known as shown in FIG. In the figure, reference numeral 20
Reference numeral 1 denotes an apparatus body, and the apparatus body 201 has a guide surface 202.

A moving body 203 is reciprocally mounted on a guide surface 202 of the apparatus main body 201, and cover devices 204 and 204 are provided on both sides of the moving body 203, respectively.
The cover device 204 includes a first cover 205 fixedly attached to the moving body 203 and a second cover 206 slidably provided on the first cover 205. Stoppers 207 and 208 are attached in order to reduce the impact with the moving body 203, the apparatus main body 201, or the cover support bracket 209.

Therefore, as shown in FIG. 10, the cover device 204 moves along with the movement of the moving body 203.
The second covers 205, 206 are extended and the left first and second covers
The expansion / contraction state is changed between the state in which the covers 205 and 206 are contracted and the state in which the covers 205 and 206 are opposite to each other.
And expand and contract. That is, when the one cover device 204 is extended, the second cover 206 is moved in association with the first cover 205 so that the second cover 206 is horizontal and almost straight, and the other cover device 204 is in the contracted state. . When contracted, the second cover 206 overlaps the first cover 205 in the horizontal state.

When the cover device 204 is expanded or contracted,
Since the first cover 205 slides on the second cover 206, a guide shoe is provided at the free end of the first cover 205.

[0009]

However, while the former cover device 104 of the conventional example has a simple structure and is inexpensive, the cover 104 composed of one plate is not the guide surface 102 of the device body 101. When extended to the opposite side, one cover 104 needs to be as long as one cover, which has a drawback of taking up space.

Also, in the latter conventional cover device 204, although the space is small, since the first cover 205 slides on the second cover 206, the guide shoe mechanism and the stoppers 207 and 208 for expansion and contraction are mounted. Are required, which makes the structure complicated and expensive. When the cover device 204 reciprocates on the guide surface 202, the guide surface 202 may be damaged, or a sliding sound generated when the guide surface 202 is slid or a collision sound during expansion and contraction may be generated. Particularly, in recent high-speed machine tools, generation of sliding noises and collision noises due to changes in the postures of the covers 205 and 206 is a problem.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to reduce the required space and prevent the generation of sliding noise and collision noise due to the change of the posture of the cover. It is to provide a protection device for a machine tool.

[0012]

SUMMARY OF THE INVENTION The present invention is a machine tool in which a movable body is reciprocally provided on a guide surface of an apparatus body, and a cover device for covering the upper side of the guide surface is mounted on at least one side of the movable body. In the protection device, the first cover fixedly attached to the moving body, the second cover having one end pin-coupled to the free end of the first cover, and the second cover One end is pin-coupled to the other end,
It is characterized in that the other end is composed of a link member pivotally attached to the apparatus main body.

[0013]

In the present invention, when the moving body reciprocates, the cover device changes its bending posture between the extended state and the contracted state, following the reciprocating movement of the moving body.

When the cover device is extended, the first cover and the second cover are substantially horizontal and in a straight line state, and the link member is substantially vertical to the second cover in the substantially horizontal state. .

When the cover device at the time of extension moves by a predetermined distance as the movable body moves, it contracts. When contracted, the second cover is in a substantially vertical state with respect to the first cover in a substantially horizontal state, and the link member is in a horizontal state with respect to the second cover in a substantially vertical state. That is, the first cover in the substantially horizontal state, the second cover in the substantially vertical state, and the link member in the substantially horizontal state form a U-shape.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to 8 show a protector for a machine tool according to an embodiment of the present invention, FIGS. 1 and 2 show the entire device, FIGS. 3 and 4 show a cover device, and FIG. 5 shows a right side portion of the cover device. FIG. 6 shows the left side portion, and the protection device for the machine tool is entirely constructed by combining FIGS. 5 and 6. 7 and 8 are front views of the cover device.

In the figure, reference numeral 1 is an apparatus body, and the apparatus body 1 has a guide surface 2. A movable body 3 is mounted on the guide surface 2 of the apparatus body 1 so as to be reciprocable in the left-right direction in FIGS. 1 and 2, and cover devices 4 and 5 are provided on both sides of the movable body 3, respectively.

The cover devices 4 and 5 are composed of a first cover 6, a second cover 7 and a link member 8. The first cover 6 is configured by a panel having a cross-section gate type and is in a horizontal state, and its fixed end 6A is fixedly attached to the moving body 3.

A second cover 7 is provided at the free end of the upper surface of the first cover 6 by pin-connecting one end 7A through a pair of first hinges 9 and 9, and the second cover 7 has the shape of the first cover 6. It is composed of a panel having a cross-section gate shape that conforms to, and is rotatable about one end 7A thereof. The link member 8 is
One end 8A is pin-connected to the other end 7B of the second cover 7 via the second hinge 10, and the other end 8B is pivotally attached to the bracket 1A provided on the apparatus body 1. Link member 8
Is rotatable about the other end 8B.

In this embodiment, however, the movable body 3 reciprocates on the guide surface 2 of the apparatus main body 1, but the cover device 4, which is integrally attached to the movable body 3, as the movable body 3 reciprocates.
In No. 5, the folded posture changes following the moving body 3 between the extended state and the contracted state. When the cover devices 4 and 5 are in the folded posture, the side plate 7C of the second cover 7 is superposed on the outside of the side 6C of the first cover 6.

The cover devices 4 and 5 reciprocate in the left-right direction of FIG. 1 and take the state of FIGS. 1 and 2 or a state between them, but when the cover device 4 is in the extended state, the cover device 5 contracts. 1 and is shown in solid lines in FIGS. 5 and 6. Further, when the cover device 4 is in the contracted state, the cover device 5 is in the extended state, which is shown by a chain double-dashed line in FIGS. 2 and 5 and 6. When one of the cover devices 4 and 5 extends, the other of the other cover devices 4 and 5 contracts.

When the cover devices 4 and 5 are extended,
The first cover 6 and the second cover 7 are horizontal and in a straight line state, and the link member 8 is in a substantially vertical state with respect to the second cover 7 in the horizontal state.

When one of the cover devices 4 and 5 at the time of extension moves by a predetermined distance as the moving body 3 moves, the link member 8 rotates about the other end 8B to become horizontal, 2 The cover 7 is in a substantially vertical state. That is, it is in a contracted state as a whole. When contracted, the second cover 7 is in a substantially vertical state with respect to the first cover 6 in a horizontal state, and the link member 8 is in a horizontal state with respect to the second cover 7 in a substantially vertical state. That is, the first cover 6 in the horizontal state and the second cover 2 in the substantially vertical state
The cover 7 and the horizontal link member 8 form a U-shape. In the figure, 11 is a motor.

According to the above configuration, the cover devices 4 and 5 change their bending postures following the moving body 3 between the extended state and the contracted state as the moving body 3 moves.
The second cover 7 rotates with respect to the first cover 6 and the link member 8 rotates with respect to the second cover 7. That is, since the folding mechanism in which the second cover 7 and the link member 8 are rotatably incorporated is adopted, the structure can be made compact, and the space between the first cover 6 and the second cover 7 and between the second cover 7 and Since there is no sliding between the link members 8, it is possible to prevent collision noise and sliding noise of these parts and ensure durability.

In this embodiment, cover devices 4 and 5 are provided on both sides of the moving body 3, respectively.
The cover devices 4 and 5 are applied if they are provided on at least one side of the moving body 3.

In the present embodiment, the case where the first cover 6 and the second cover 7 are in the horizontal state has been described, but it is needless to say that the present invention can be applied to the case where the first cover 6 and the second cover 7 are slightly inclined from the horizontal state. Is.

[0027]

As described above, according to the present invention, the cover device has a structure in which the second cover rotates with respect to the first cover and the link member rotates with respect to the second cover. ing. That is, since the folding mechanism in which the second cover and the link member are rotatably incorporated is adopted, the structure can be made compact, and the sliding between the first cover and the second cover and between the second cover and the link member can be achieved. Since there is no movement, therefore, collision noise and sliding noise of these parts can be prevented from occurring, and durability can be ensured.

[Brief description of drawings]

FIG. 1 is a schematic skeleton diagram of a cover device according to an embodiment of the present invention.

FIG. 2 is a schematic skeleton diagram showing an operating state of the cover device according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a state when the cover device is contracted.

FIG. 4 is a perspective view showing a state when the cover device is extended.

FIG. 5 is a side view showing a right side portion of the cover device.

FIG. 6 is a side view showing a left side portion of the cover device.

FIG. 7 is a left front view of the cover device.

FIG. 8 is a right front view of the cover device.

FIG. 9 is a side view showing a conventional first cover device.

FIG. 10 is a side view showing a second conventional cover device.

[Explanation of symbols]

 1 Device Main Body 2 Guide Surface 3 Moving Object 4 Cover Device 5 Cover Device 6 First Cover 7 Second Cover 8 Link Member

Claims (1)

(57) [Scope of utility model registration request] 1. A protector for a machine tool comprising a movable body reciprocally provided on a guide surface of a main body of the apparatus, and a cover device covering at least one side of the movable body covering the upper side of the guide surface. A first cover fixedly attached to the moving body, a second cover provided with one end pin-coupled to the free end of the first cover, and one end pin-coupled to the other end of the second cover. A protective device for a machine tool, characterized in that it is provided with a link member, the other end of which is attached to the main body of the device.