CN206356970U - A kind of roll harness component - Google Patents

Abstract

The utility model discloses a roll fitting assembly, which belongs to the field of fittings and comprises a top cap, connecting bolts and inner and outer nuts. The central part of the cap is also provided with a through hole, and the connecting bolt runs through the through hole on the top cap and cooperates with the internal thread of the inner and outer screw nuts, and the inner and outer nuts are also provided with external threads that match the threaded section of the center hole of the roll. The utility model can meet the requirement of processing the roll with a large center hole without replacing the top of the machine tool.

Description

A roller assembly

technical field

The utility model relates to a fitting, in particular to a roll fitting assembly, which is used for fitting the top of a machine tool to mount the top of a roll on the machine tool.

Background technique

As shown in FIG. 1 , in order to facilitate the turning and fine grinding of the roll, and to facilitate the positioning of the roll and the main shaft on the rolling line, the two ends of the roll are usually provided with a center hole. The center hole is used as the reference hole in the roll processing process and the positioning hole and the fixing hole in the assembly process. Usually, the outermost end of the center hole is provided with a tapered section, and the innermost end is provided with a threaded section. Depending on the roll model, the cone angle at the tapered end also varies.

In the prior art, in the turning and fine grinding process of the roll, the chuck and thimble of the machine tool are usually used to install the roll on the machine tool. The size of the chuck is adjustable, but the size of the machine tool tip is indeed fixed. As the roll model increases, the machine tool tip must be replaced with a larger-sized tip. Under such circumstances, not only the cost of purchasing the top will cause a heavy burden to the enterprise, but also after the ordinary machine tool is replaced with a large-size center, the weight of the machine tool shaft will also increase, which will affect the machining accuracy of the roll. What's more serious is that for some ultra-large rolls, it is even impossible to find tops that can match the size in China, and special machine tools must be replaced to meet production needs.

Utility model content

The technical problem to be solved by the utility model is to provide a roll assembly to meet the requirement of processing rolls with large central holes in the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A roll fitting assembly, characterized in that it includes a top cap, connecting bolts and inner and outer nuts, the top cap is provided with a tapered inner wall that matches the top of the machine tool and a tapered outer wall that matches the center hole of the roll, and the center of the top cap is also provided with a There is a through hole, the connecting bolt runs through the through hole on the top cap and cooperates with the internal thread of the internal and external screw nuts, and the internal and external nuts are also provided with external threads that match the threaded section of the center hole of the roll.

The further improvement of the technical solution of the utility model lies in that: regular quadrilateral or regular hexagonal bosses are arranged on the outer end faces of the inner and outer nuts.

The further improvement of the technical solution of the utility model lies in that regular hexagonal pits are arranged on the outer end faces of the inner and outer nuts.

The further improvement of the technical solution of the utility model lies in that: the cone angle of the outer wall of the top cap is 60° or 75° or 90°.

The further improvement of the technical solution of the utility model lies in that: the inner side of the through hole of the top cap is provided with a bolt head to make room.

Owing to having adopted above-mentioned technical scheme, the technical progress that the utility model obtains is:

Utilizing the utility model can realize that the machine tool meets the requirement of processing rolls with large-sized center holes without replacing the top of the machine tool, which not only saves a large amount of investment required for replacing the top of the machine tool for the enterprise, but more importantly, avoids The accuracy of the machine tool is reduced due to the replacement of the large center.

The utility model is also a combined fitting, which is very convenient for installation and disassembly. At the same time, the outer wall of the tip cap in the utility model can be designed into various angles to meet the clamping requirements for different types of rolls.

The inner and outer wire nuts in the utility model are designed with various structural forms, which can be better adapted to the production site, facilitate installation and disassembly by workers with different tools, and further improve the versatility of the assembly.

Description of drawings

Fig. 1 is a structural sectional schematic diagram of a roll center hole;

Fig. 2 is a structural representation of the utility model in an assembled state;

Fig. 3 is the structural representation of internal and external wire mother in the utility model;

Wherein, 10, top cap, 11, connecting bolt, 12, inner and outer nuts, 121, boss, 20, top of machine tool, 30, roll, 31, tapered section, 32, thread section.

detailed description

Below in conjunction with embodiment the utility model is described in further detail:

As shown in Figure 2, the utility model is a roll mounting assembly, which is used to be pre-installed on the center holes at both ends of the roll 30, so that the roll 30 with a larger center hole can be installed in a smaller size by using the utility model. The top 20 of the machine tool.

The utility model comprises three components: a top cap 10, a connecting bolt 11 and an inner and outer nut 12. The tip cap 10 is provided with a tapered inner wall matched with the machine tool tip 20 and a tapered outer wall matched with the center hole of the roll 30 . A through hole is also provided in the center of the top cap 10 for passing through the connecting bolt 11 . In order to prevent the bolt head from interfering with the machine tool center 20 , the inside of the through hole of the center cap 10 is provided with a space for the bolt head.

After connecting bolt 11 passes through this through hole, utilize its screw thread to cooperate with the internal screw thread of internal and external screw nut 12, after tightening, top cap 10 can be fixed on the center hole of roll 30. The inner and outer screw nuts 12 are also provided with external threads that match the threaded section 32 of the central hole of the roll 30 .

As shown in FIG. 3 , in order to facilitate the installation of the inner and outer screw nuts 12 , a regular quadrilateral or regular hexagonal boss 121 is provided on the outer end surface of the inner and outer screw nuts 12 . When in use, a sleeve wrench or an ordinary wrench can be used to set the boss 121, and the inner and outer screw nuts 12 can be screwed in or out by turning the wrench.

In another embodiment of the utility model, regular hexagonal pits are arranged on the outer end surfaces of the inner and outer screw nuts 12, which facilitates the cooperation between the inner and outer screw nuts 12 and the outer hexagonal wrench.

Considering that different types of rollers 30 have different conical angles of the central holes, the conical angles of the outer wall of the top cap 10 in the utility model are designed with 60 ° or 75 ° or 90 ° multiple specifications, which further improves the utility model. A new kind of versatility.

During use, at first the inner and outer screw nuts 12 are screwed into the threaded section 32 of the center hole of the roll 30, and then the top cap 10 is fixed on the tapered section 31 of the center hole by using the connecting bolt 11 to complete the pre-installation of the utility model. Then, the roll 30 is installed on the machine tool by using a spreader such as a crown block.

Claims (5)

1. A roll fitting assembly, characterized in that it includes a top cap (10), connecting bolts (11) and inner and outer nuts (12), and the top cap (10) is provided with a tapered inner wall that matches the machine tool top (20) With the tapered outer wall matched with the tapered section (31) of the center hole of the roll (30), a through hole is also provided in the center of the top cap (10), and the connecting bolt (11) runs through the through hole on the top cap (10). Holes are also matched with the internal threads of the inner and outer screw nuts (12), and the inner and outer screw nuts (12) are also provided with external threads that match the threaded section (32) of the roll (30) center hole. 2. A roll mounting assembly according to claim 1, characterized in that: regular quadrilateral or regular hexagonal bosses (121) are provided on the outer end faces of the inner and outer nuts (12). 3. A roll mounting assembly according to claim 1, characterized in that regular hexagonal pits are provided on the outer end surfaces of the inner and outer nuts (12). 4. A roll mounting assembly according to any one of claims 2 or 3, characterized in that: the cone angle of the outer wall of the tip cap (10) is 60° or 75° or 90°. 5. A roll mounting assembly according to claim 4, characterized in that: the inside of the through hole of the top cap (10) is provided with a bolt head to make room.