JPS60114431A - Frame for machine tool - Google Patents

Abstract

PURPOSE:To get easily a light and rigid frame for a machine tool, by constituting the frame with some pieces of board and some tubes, as using them combinationally. CONSTITUTION:A frame for a machine tool consists of a frame forming member, which is made by setting some tubes 5 between a pair of boards 4, parallel with each other, and fixing them with an adhesive material. The space which is divided with the tubes 5, between the pair of boards 4, is used as a flow route for a temperature controlling fluid. Consequently, a light and rigid frame for a machine tool can be got easily, by using generally mass-produced boards and tubes, combinationally, moreover, the frame for the machine tool can be cooled, or the temperature controlling of the frame can be performed, very easily, as it is not necessary to performe a processing for a flow route forming, in addition to the former process, because the space which is divided by the tubes is used as a flow route for a cooling fluid or a heating fluid, as it is.

Description

[Detailed description of the invention] The present invention relates to a frame for a machine tool.

is made of cast iron, pressed steel plate welding, etc., but there is a problem that the weight increases more than necessary. Also,
Some machine tools have frames that partially heat up during operation due to heat generation in the motorized parts and frictional heat in the working parts, and this partial temperature rise can cause thermal deformation of the frame. This will have an adverse effect on machining, such as reducing machining accuracy. Therefore, in such a machine tool, it is desirable that the frame has a cooling function or a temperature raising function to maintain a constant temperature distribution in addition to rigidity.

The present invention has been made in view of the above, and an object thereof is to provide a frame for a machine tool that has a simple structure, is lightweight, has high rigidity, and also has a temperature control function.

To achieve this object, the frame for a machine tool of the present invention is composed of a frame component in which a pair of plate members are arranged in parallel and fixed together with an adhesive, and a pipe is connected between the pair of plate members. It is characterized in that the partitioned space is used as a flow path for temperature control fluid.

According to the present invention, a lightweight and highly rigid machine tool frame can be easily obtained by combining generally mass-produced plate materials and tube materials, and the space partitioned by the tubes can be directly cooled or elevated. Since it is used as a flow path for hot fluid, cooling and temperature adjustment of the frame of the machine tool can be performed extremely easily without any special processing for forming the flow path.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the case where the present invention is applied to a bed for a lathe, where 1 represents the bed of the lathe and 2 represents a frame structural member constituting the bed.

The frame structure member 2, as illustrated in FIG.
Between a pair of plate members 4, 4 made of plates with high rigidity and high thermal conductivity, such as iron plates, a large number of tubes 5, 5, made of the same material as the plate members are installed. - By arranging Φ in parallel, those tubes 5, 5.
... and between the plate members 4, 4 and their tubes 5, 5. . . are fixed together with an adhesive 7 made of epoxy resin, phenol resin, urethane resin, etc., and the tubes 5, 5 . A tube 6 with closed ends is brought into contact with both ends of the tubes 5, 5, . It is also formed by adhering to the ends of...

The plurality of tubes 5,5. - and the tubes 6, 6 are also used as flow paths for cooling or heating fluid, and are made of tubes with a cylindrical or square cross section, and may be formed into a hexagonal or other polygonal cross section as necessary. However, as shown in the figure, if a tube with a square cross section is used around the four circumferences of the plate member, the shape around the frame structural member can be adjusted and at the same time the adhesive 7 can be used.
By increasing the bonding area, the seal can be ensured.

” 2nd chapter 5, 5. The tubes 6, 6 in contact with both ends of the container tubes 5, 6 are provided with inlets 8, 9 for temperature control fluid, respectively, and have openings 5a, 5a at both ends of the container tubes 5, 5 on the inside thereof.
Communication holes 10, 10. -・ is drilled. This communication hole +0.10. ... can be opened to an appropriate size in consideration of the flow rate, pressure, etc. of the temperature control fluid flowing into the corresponding pipes 5. Also,
The communication hole 10 is connected to the pipes 5, 5. . . can be opened not only at a position corresponding to the inside of the tubes, but also at a position corresponding to the space between the tubes, thereby opening the container tubes 5, 5.
The space outside of ... can also be used as a flow path for temperature control fluid. - The space partitioned by the pipe between the pair of plate members 4, 4 in this way is used as a flow path for the temperature control fluid, and the flow path from one temperature control fluid inlet 8 to the other temperature control fluid inlet 9 is formed. By forming a temperature control fluid such as air or oil between these inlets and inlets, the temperature of the frame structure member can be effectively controlled.

A large number of tubes arranged in parallel between the pair of plate members 4, 4 can be arranged alternately. In this case, since the rectangular tube has a larger joint area with the plate members 4.4, the adhesive force with the plate members 4, 4 can be increased.

In the above embodiment, for simplicity of explanation, a large number of tubes 5, 5 . Although the case where the plate members 4, 4 are arranged in parallel has been explained, if the area of the plate members 4, 4 is relatively large and external forces act on the frame constituent members constituted by them from partially different directions, the pipe 5,5.・You can also partially change the direction in which the fists are arranged. Furthermore, the frame component can be formed into a curved surface by appropriately curving it.

In addition, if the frame components do not require great strength, use a highly viscous adhesive as the adhesive 7 to suppress frame vibration and reduce machine tool noise and vibration. Can be done. Furthermore, the rigidity of the frame can be partially increased by using adhesives in areas that require rigidity and those that do not.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of a lathe bed using a frame for a machine tool according to the present invention, FIG. 2 is a partially cutaway perspective view of a frame component, and FIG. 3 is a frame component in a separate structure. FIG.

Claims (1)

[Claims] 1. It consists of a frame component in which pipes are arranged in parallel between a pair of plate members and fixed with adhesive, and the space defined by the pipes between the pair of plate members is used as a flow path for temperature control fluid. A machine tool frame characterized by: