Special tool for turning finished roll of Z steel

Abstract

This utility model discloses a special tool for machining finished Z-shaped steel rolls, including a tool head and a rotating assembly. The rotating assembly is located on the rear side of the outer wall of the tool head. The rotating assembly includes a mounting block, and a connecting rod is fixedly connected to the rear side of the outer wall of the mounting block. A tool holder is sleeved on the outer wall of the connecting rod, and a rotating sleeve is sleeved on the outer wall of the tool holder. This special tool for machining finished Z-shaped steel rolls, by setting up the rotating assembly, requires only two steps for installation: aligning the connecting rod and positioning block with the track groove and inserting them, then rotating the rotating sleeve to apply pressure and fix them. Repeated calibration is unnecessary. Disassembly is achieved by simply rotating the rotating sleeve in the opposite direction. This reduces the cumulative time spent changing tools for a single roll, making it suitable for efficient production of batch rolls. Traditional bolt fixing requires operators to master dial indicator calibration and torque control skills, while this solution achieves autonomous positioning through the positioning block and track groove, reducing the company's reliance on highly skilled personnel and alleviating the industry's labor shortage problem.

Description

Technical Field

[0001] This utility model relates to the field of roll processing technology, specifically to a special tool for turning finished Z-shaped steel rolls. Background Technology

[0002] Roll pass cutters (also known as mill pass systems) are core tools used in the steel and non-ferrous metal processing industries for turning roll passes. Their design, manufacturing, and application directly determine the dimensional accuracy, mechanical properties, and production efficiency of the products. Roll passes are the most important part of rolled profiles, and the shape and precision of the passes are key to the success of rolled products.

[0003] In the machining of Z-shaped steel finished rolls, the rolls are mostly made of high-hardness materials such as high-chromium cast iron and semi-steel, and complex grooves that match the Z-shaped steel cross-section need to be machined. This places extremely high demands on the positioning accuracy of the tool installation. Existing ordinary lathes and some CNC lathes still use the traditional fixing structure of bolts and pressure blocks, which has problems such as easy positioning misalignment, long installation time, and insufficient rigidity leading to loosening. There is an urgent need for a tool holder fixing technology that does not require modification of the existing tool holder, can automatically limit and prevent misalignment, is easy to install, and has controllable cost. Utility Model Content

[0004] The purpose of this utility model is to provide a special cutting tool for turning finished Z-shaped steel rolls, in order to solve the problem mentioned in the background art that in the turning of finished Z-shaped steel rolls, the roll material is mostly high-chromium cast iron, semi-steel and other high-hardness materials, and complex grooves that match the Z-shaped steel cross-section need to be machined. The positioning accuracy requirements for tool installation are extremely high. Existing ordinary lathes and some CNC lathes still use the traditional fixing structure of bolts and pressure blocks, which has the problems of easy positioning misalignment, long installation time, and insufficient rigidity that makes it easy to loosen. There is an urgent need for a tool holder fixing technology that is easy to install and cost-effective.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special cutting tool for turning Z-shaped steel finished rolls, including a cutting head and a rotating assembly. The rotating assembly is provided on the rear side of the outer wall of the cutting head. The rotating assembly includes a mounting block. A connecting rod is fixedly connected to the rear side of the outer wall of the mounting block. A tool holder is sleeved on the outer wall of the connecting rod. A rotating sleeve is sleeved on the outer wall of the tool holder. A limit ring is fixedly connected to the inner wall of the rotating sleeve. A limit block is fixedly connected to the inner wall of the tool holder. A telescopic groove is provided on the outer wall of the tool holder.

[0006] Preferably, a positioning block is fixedly connected to the outer wall of the connecting rod, and a track groove is opened on the inner wall of the tool holder at the position corresponding to the positioning block.

[0007] Preferably, the outer wall of the rotating sleeve has a through groove, and the tool holder is threadedly connected to the rotating sleeve.

[0008] Preferably, the outer wall of the tool holder and the inner wall of the rotating sleeve are provided with threaded grooves, and the connecting rod is slidably connected to the tool holder.

[0009] Preferably, the positioning block is slidably connected to the inner wall of the tool holder, and there are two positioning blocks.

[0010] Preferably, the two positioning blocks are evenly distributed on the outer wall of the connecting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a rotating component, the operator only needs to align the connecting rod and positioning block with the track groove and insert them, and then rotate the rotating sleeve to apply pressure and fix it. There is no need for repeated calibration. When disassembling, simply rotate the rotating sleeve in the opposite direction to loosen it. The cumulative time spent on changing the blade of a single roll is reduced, making it suitable for efficient production of batch roll processing. Traditional bolt fixing requires operators to master dial indicator calibration and torque control skills, while this solution achieves autonomous positioning through positioning blocks and track grooves, reducing the company's reliance on highly skilled personnel and alleviating the industry's labor shortage problem.

[0013] 2. The positioning block and the track groove on the inner wall of the tool holder form a concave-convex fit, which can limit the displacement of the tool head in the radial and circumferential directions and avoid the center high offset caused by uneven contact of the reference surface in traditional bolt fixing. The rotating sleeve applies annular pressure to the outer wall of the tool holder through the limiting ring, so that the connecting rod is in contact with the reference surface of the tool holder, and the clamping rigidity is improved. Attached Figure Description

[0014] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the separation structure of the tool holder and the rotating sleeve in this utility model;

[0017] Figure 4 This is a schematic diagram of the separation structure between the connecting rod and the tool holder in this utility model.

[0018] In the diagram: 1. Cutting head; 201. Mounting block; 202. Connecting rod; 203. Tool holder; 204. Rotating sleeve; 205. Limiting ring; 206. Limiting block; 207. Telescopic groove; 3. Positioning block; 4. Track groove; 5. Through groove; 6. Threaded groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 3 and Figure 4 This utility model provides a technical solution: a special tool for turning finished Z-shaped steel rolls, including a tool head 1 and a rotating assembly. The rotating assembly is provided on the rear side of the outer wall of the tool head 1. The rotating assembly includes a mounting block 201. A connecting rod 202 is fixedly connected to the rear side of the outer wall of the mounting block 201. A tool holder 203 is sleeved on the outer wall of the connecting rod 202. A rotating sleeve 204 is sleeved on the outer wall of the tool holder 203. A limit ring 205 is fixedly connected to the inner wall of the rotating sleeve 204. A limit block 206 is fixedly connected to the inner wall of the tool holder 203. A telescopic groove 207 is opened on the outer wall of the tool holder 203. By setting up a rotating component, when workers need to install the roll, they only need to align the connecting rod 202 and the positioning block 3 with the track groove 4 and insert them, and then rotate the rotating sleeve 204 to apply pressure and fix it. There is no need for repeated calibration. When disassembling, simply rotate the rotating sleeve 204 in the opposite direction to loosen it. The cumulative time spent on changing the cutter of a single roll is reduced, making it suitable for efficient production of batch roll processing. Traditional bolt fixing requires operators to master dial indicator calibration and torque control skills, while this solution achieves autonomous positioning through the positioning block 3 and the track groove 4, reducing the company's dependence on highly skilled personnel and alleviating the industry's labor shortage problem.

[0021] Please see Figure 2 , Figure 3 and Figure 4 A positioning block 3 is fixedly connected to the outer wall of the connecting rod 202. A track groove 4 is opened on the inner wall of the tool holder 203 corresponding to the positioning block 3. A through groove 5 is opened on the outer wall of the rotating sleeve 204. The tool holder 203 and the rotating sleeve 204 are threadedly connected. A threaded groove 6 is opened on the outer wall of the tool holder 203 corresponding to the inner wall of the rotating sleeve 204. The connecting rod 202 and the tool holder 203 are slidably connected. The positioning block 3 is slidably connected to the inner wall of the tool holder 203. There are two positioning blocks 3, which are evenly distributed on the outer wall of the connecting rod 202. The positioning block 3 and the track groove 4 on the inner wall of the tool holder 203 form a concave-convex fit, which can limit the displacement of the tool head 1 in the radial and circumferential directions and avoid the center height offset caused by uneven contact of the reference surface in traditional bolt fixing. The rotating sleeve 204 applies annular pressure to the outer wall of the tool holder 203 through the limiting ring 205, so that the connecting rod 202 and the reference surface of the tool holder 203 are in contact, and the clamping rigidity is improved.

[0022] Working principle: When the operator needs to install the cutter head 1, the connecting rod 202 is manually inserted into the cutter holder 203, and the positioning block 3 is inserted into the track groove 4. Then, the rotating sleeve 204 is manually rotated. At this time, the limiting ring 205 applies pressure to the outer wall of the cutter holder 203, the limiting block 206 applies pressure to the outer wall of the connecting rod 202, and the telescopic groove 207 retracts, thus completing the fixation of the cutter head 1. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special cutting tool for turning finished Z-shaped steel rolls, comprising a cutting head (1) and a rotating assembly, characterized in that: The blade head (1) has a rotating assembly on the rear side of its outer wall. The rotating assembly includes a mounting block (201). A connecting rod (202) is fixedly connected to the rear side of the outer wall of the mounting block (201). A blade holder (203) is sleeved on the outer wall of the connecting rod (202). A rotating sleeve (204) is sleeved on the outer wall of the blade holder (203). A limiting ring (205) is fixedly connected to the inner wall of the rotating sleeve (204). A limiting block (206) is fixedly connected to the inner wall of the blade holder (203). A telescopic groove (207) is opened on the outer wall of the blade holder (203).

2. The special cutting tool for turning Z-shaped steel finished rolls according to claim 1, characterized in that: The outer wall of the connecting rod (202) is fixedly connected to a positioning block (3), and the inner wall of the tool holder (203) is provided with a track groove (4) corresponding to the positioning block (3).

3. The special cutting tool for turning Z-shaped steel finished rolls according to claim 1, characterized in that: The outer wall of the rotating sleeve (204) is provided with a through groove (5), and the tool holder (203) is threadedly connected to the rotating sleeve (204).

4. The special cutting tool for turning Z-shaped steel finished rolls according to claim 3, characterized in that: The outer wall of the tool holder (203) and the inner wall of the rotating sleeve (204) are provided with threaded grooves (6), and the connecting rod (202) is slidably connected to the tool holder (203).

5. The special cutting tool for turning Z-shaped steel finished rolls according to claim 2, characterized in that: The positioning block (3) is slidably connected to the inner wall of the tool holder (203), and there are two positioning blocks (3).

6. The special cutting tool for turning Z-shaped steel finished rolls according to claim 5, characterized in that: The two positioning blocks (3) are evenly distributed on the outer wall of the connecting rod (202).

Images