JPH04102753U - Swivel table protector - Google Patents

Abstract

(57) [Summary] [Purpose] A protection device for the rotating table that prevents the sliding surface of the rotating table installed on the table base and instruments such as sensors installed in the vicinity from intrusion of foreign matter such as fine chips. I will provide a. [Configuration] The top surface of the table base 11 of the machine tool is an inclined surface.
11B, and a mounting portion 11E consisting of a groove 11A horizontally crossing the slope 11B and a mounting surface 11C is formed on the slope 11B. A table 12 is rotatably provided on such a table base 11. The table 12 has a circumferential groove 12A formed on its lower surface. A cover member 1 made of a metal plate, such as stainless steel, is attached at its upper end to the circumferential groove 12A, half at its lower end to the groove 11A, and the other half to the mounting surface, and fixed with bolts 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a protection device for a rotating table, and in particular, the present invention relates to a protection device for a rotating table. It can be used for machine tools that have a turning table that is rotatable through the turning table.

0002

[Background technology]

Machine tools such as horizontal boring machines and machining centers that have a rotating table There are things to do. Sensors installed on or near the sliding surface of such a rotating table The devices shown in Figures 4 and 5 are suitable for protecting instruments such as sanitary equipment. Common. That is, according to FIG. 4, a support member 14 is provided on the table base 11 side, and this support The protective cover 15 made of rubber material supported by the member 14 is attached to the supporting member 14 and the table 12. It is provided across the groove 16 formed on the lower surface, and is provided between the table 12 and the table base 11. It protects the slope surface 13 and instruments 5 such as sensors.

0003 Further, according to FIG. 5, a protrusion 17 is formed on the table base 11, and this protrusion 17 The cable 12 is inserted into a recess 18 formed on the lower surface of the cable 12. And this protrusion 17 In the gap between the recess 18 and the support member 19, a protective cover 20 made of a rubber material is installed. It is provided. Note that the support member 19 is attached to the table 12 with bolts 21. It is. Such a protective cover 20 protects the table 12 and the table base 11. The sliding surface 13 and instruments 5 such as sensors are protected.

0004

[Problem that the idea aims to solve]

However, since the conventional protective covers 15 and 20 are made of rubber-based materials, Rubber deteriorates due to long-term use, and rubber corrodes due to chemical changes with cutting agents. Protective covers 15, 20 and table 12 may become damaged due to rubber wear caused by rotation of table 12. A gap may occur between the covers 15 and 20, or a gap may also occur at the joint between the covers 15 and 20. So If this happens, foreign matter, especially fine chips from air blowing, may enter through the gaps. Furthermore, it also invaded the sensors and other instruments 5 and the sliding surface 13, causing the problem of poor dustproofness. there were. As a result, sensors and other instruments 5 do not work properly, causing troubles. In some cases, the sensor etc. 5 needed to be replaced. In addition, it is protected to improve dust resistance. Increasing the pressing force of the cover increases the frictional resistance, which puts a strain on the drive motor. This may result in poor stopping accuracy or motor failure.

[0005] Here, the purpose of the present invention is to provide a machine tool with a rotating table. Check the sliding surface of the slider or sensors and other instruments installed near it to avoid any foreign particles such as fine chips. Our goal is to provide a highly dust-proof protection device for rotating tables that protects them from intrusion. Ru.

[0006]

[Means to solve the problem]

In this invention, the turning table rotates on the table base of the machine tool via the sliding surface. A rotating table that is rotatable and has a cover member that protects the sliding surface. In the protection device, the upper end of the cover member is inserted into the lower surface of the table. A circumferential groove is formed on the table base, and the lower end of the cover member is attached to the table base. A mounting portion is formed between the circumferential groove and the mounting portion, and a band-shaped metal plate cover is provided between the circumferential groove and the mounting portion. A member was inserted to create a protection device for the rotating table.

[0007]

[Effect]

In this invention, the top end of the cover member made of a band-shaped metal plate is located under the table. It is inserted into the groove around the entire circumference of the table base, and its lower end is attached to the mounting part on the top surface of the table base. It is attached between the table and the table base. Therefore, hermeticity Since the cover member is made of metal, there is less wear and chemical resistance with cutting agents. There is no corrosion due to changes. As a result, it becomes a highly dust-proof protection device for rotating tables. It was.

[0008]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. 1 and 2 show a machine tool to which the rotating table protection device 30 of the present invention is applied. An overall view of the machine near the table and a cross-sectional plan view are shown. To describe the overall outline in these figures, the machine tool is placed on the table base 11. is provided with a table 12, which is equipped with a worm mechanism (not shown) or a spur gear. The mechanism allows rotation along the sliding surface 13. Work W is this table 12, and predetermined processing is performed.

[0009] The lower surface of the table 12 has a predetermined width and depth, as shown in detail in FIG. A groove 12A is formed around the entire circumference.

0010 Further, in this embodiment, the table base 11 has an inclined surface 11B. Furthermore, a mounting portion 11E is formed on this inclined surface 11B. This mounting part 11E consists of a groove part 11A and a mounting surface 11C, and the groove part 11A is formed by the inclined surface 11B. It is formed only on the half side, on the left side from the center 3 in FIG. In other words, this groove The section 11A extends from the intersection of the center 3 of the table base 11 and the inclined surface 11B to the inclined surface 11B. an inclined surface 11B that is formed horizontally across the plane and is therefore lower than this horizontal plane; In other words, the groove 11A is formed on the upper surface of the right side of the table base 11 in FIG. not present. However, a horizontal protruding surface 11D is formed, and the Furthermore, a mounting surface 11C on which the cover member 1 is mounted is formed. This mounting surface 11C is Together with the groove portion 11A, it constitutes a mounting portion 11E.

[0011] The cover member 1 is provided between such a table base 11 and the table 12. It will be done. That is, the cover member 1 is a strip-shaped metal plate, particularly a stainless steel thin plate strip in the embodiment. steel is used. The upper end of such a cover member 1 is connected to the tape. It is designed to be inserted into the circumferential groove 12A of the ring 12. Further, half of the lower end portion of the cover member 1 is located within the groove portion 11A of the table base 11. and the other half is attached to the mounting surface 11C. On this occasion , the cover member 1 is attached to the attachment surface 11C with bolts 2. Here, the cover member 1, the circumferential groove 12A, the mounting part 11, etc. are used to connect the swivel table. A protective cover 30 is configured.

0012 A table base 11 and a table 12 configured with the cover member 1 attached thereto. The space between the Instruments 5 such as sensors are provided to measure the following.

[0013] Next, the operation of this embodiment will be explained. A table is mounted on a table base 11 to which sensors and other instruments 5 are attached. 12 is rotatably installed, first, cover member 1 is attached to the table 12 at its upper end. Insert it into the entire circumference groove 12A on the side, and insert its lower end into the mounting part 11E on the table base 11 side. Insert into. At this time, the cover member 1 is inserted into the groove 11A and the circumferential groove 12A. By doing so, the winding will be wrapped around the left side in Figure 1, that is, the groove 11A on the table base 11 side. It will be tight, so wrap the other half around mounting surface 11C and secure with bolt 2.

[0014] In this way, the cover member 1 allows the table 12 and the table base 11 to be completely connected. Since the area near the sliding surface 13 is completely sealed, there is no possibility of sensors installed on the sliding surface 13 or its vicinity. The instruments 5 are protected from intrusion of foreign matter such as fine chips.

[0015] According to this embodiment as described above, the following effects are achieved. That is, since the cover member 1 of the protective device 30 is made of stainless steel, It will not deteriorate even after long-term use. In addition, it is not attacked by cutting fluids, and There is little wear on the cover member 1 due to the rotation of the cable 12, and therefore the dustproof effect is extremely high. This is a protection device 30 for a rotating table that is taller and has a longer lifespan. As a result, Fine chips may be present in the sliding surface 13 between the instruments 5 and the table 12 and the table base 11. This reduces the chance of foreign objects entering into the instruments 5, such as sensors. This eliminates troubles such as motor failure due to foreign objects entering the sliding surface 13. became. In addition, the sliding resistance due to the cover member 1 is due to the contact between surface-treated metals. Therefore, sliding resistance can be reduced.

[0016] Further, the cover member 1 is made of a thin plate of stainless steel. The bar member 1 is attached to a mounting portion 11E consisting of a circumferential groove 12A, a groove portion 11A, and a mounting surface 11C. However, it only needs to be fixed with bolt 2, making it easy to manufacture and also easy to attach and detach. Ru.

[0017] Furthermore, since the upper surface of the table base 11 of this embodiment is an inclined surface 11B, Chips generated by cutting, coolant, etc. are easily discharged.

[0018] Note that the machine tool equipped with the rotary table protection device 30 of this example has dustproof properties. As a result of the experiment, even after more than two years, fine chips remained on the sliding surface 13 and instruments 5 such as sensors. There have been no problems or motor failures caused by foreign objects such as It has been proven that the rotary table protection device 30 has a high dustproof effect for the first time.

[0019] Note that the present invention is not limited to the above-mentioned embodiments, and may be modified as shown below. etc. That is, in the embodiment described above, a single cover member 1 of the protective device 30 is used. However, it is not limited to this, for example, it can be divided into two parts, etc. In this case, attach the mounting surface 11C on the table base 11 side as appropriate, including the split part. Just bolt it on. In short, it is better if the sliding surface 13 and the instrument storage part 4 are sealed. stomach.

[0020] Further, in the above embodiment, the cover member 1 was made of a thin stainless steel plate, but it is not limited to this. However, any belt-shaped metal plate with wear resistance, corrosion resistance, etc., such as a brass plate, may be used.

[0021] Furthermore, in the embodiment described above, the groove portion 11A of the table base 11 is formed horizontally. However, it does not necessarily have to be horizontal, and may be along the slope 11B or on another slope. It may also be a diagonal groove. According to this, chips and coolant have entered the groove 11A. etc. are also easily discharged.

[0022] Further, the protection device 30 for the rotating table of this embodiment is such that the upper surface of the table base 11 is A machine tool that has a table base with a horizontal surface instead of the inclined surface 11B as in the embodiment It can also be applied to

[0023] In addition, the specific structure, shape, etc. when implementing the present invention will achieve the purpose of the present invention. Other structures may be used as long as they can be achieved.

[0024]

[Effect of the idea]

As explained above, according to the rotating table protection device of the present invention, the rotating table Installed on or near the sliding surface of the rotating table in machine tools with a It is possible to protect instruments such as sensors that have been removed from the intrusion of foreign substances such as fine chips.

[Brief explanation of drawings]

FIG. 1 is an overall view of the vicinity of a revolving table to which a revolving table protection device according to the present invention is attached.

FIG. 2 is a sectional view taken along line II-II in FIG. 1.

FIG. 3 is a detailed view of the main parts near the turning table.

FIG. 4 is an example diagram showing a conventional protection device for a rotating table.

FIG. 5 is an example diagram showing another type of conventional protection device for a rotating table.

[Explanation of symbols]

1 Cover member 2 bolts 5 Sensors and other instruments 11 Table base 11A Groove 11B Slope 11C Mounting surface 11E Mounting part 12 table 12A full circumference groove 13 Slip surface 30 Protection device for rotating table

Claims (1)

[Scope of utility model registration request] 1. A protection device for a rotating table, wherein a rotating table is rotatably provided on a table base of a machine tool via a sliding surface, and has a cover member for protecting the sliding surface, wherein the lower surface of the table has a A circumferential groove into which the upper end of the cover member is inserted is formed, a mounting portion into which the lower end of the cover member is attached is formed on the table base, and a strip-shaped groove is formed between the circumferential groove and the mounting portion. A protection device for a rotating table, characterized in that a cover member made of a metal plate is interposed.