A power transmission structure for a twenty-roller rolling mill housing

Abstract

The utility model discloses a kind of power transmission structures for twenty-roller mill frame processing, including power transmission structure body, the one end of power transmission structure body is fixedly connected on high-precision boring bar, the other end of power transmission structure body is connected boring machine's power output shaft, so that boring machine gets power and is transmitted to twenty-roller mill frame processing fixture on power transmission structure.The power transmission device proposed in the utility model can connect the tooling composed of high-precision wallboard, high-precision hydraulic bearing seat and high-precision boring bar and boring machine, to efficiently process plum blossom cavity, can improve cutting speed, feed speed and other parameters in processing process, to speed up processing progress.

Description

Technical Field

[0001] This utility model relates to a power transmission structure, specifically a power transmission structure used in the processing of a 20-roll mill archway. Background Technology

[0002] Limitations of traditional processing methods for 20-roll mill arches:

[0003] High dependence on machine tool precision: Traditional machining methods typically use specialized machining tools on dedicated machine tools to machine the eight holes. However, this method is highly dependent on the precision of the machine tool, the cutting tools, and the machining environment. Furthermore, the fact that foreign countries possess the main technologies makes it difficult for China to acquire the relevant technologies and equipment.

[0004] 2. Problems during machining: When machining perforated holes on a vertical boring machine, the Z-axis of the machine is horizontally positioned. The axis of the perforated hole is parallel to the horizontal direction. During boring, the Z-axis and the spindle extension are quite long. Excessive spindle extension causes deflection due to gravity, affecting the parallelism of the machined hole. Furthermore, the accuracy of the worktable movement is difficult to guarantee for machining a 20t archway. Utility Model Content

[0005] The purpose of this utility model is to provide a power transmission structure for the processing of a 20-roll mill archway, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A power transmission structure for machining the 20-roll mill stand includes a power transmission structure body, one end of which is fixedly connected to a high-precision boring bar, and the other end of which is connected to the power output shaft of the boring machine, so that the boring machine can obtain power and transmit it to the machining fixture of the 20-roll mill stand through the power transmission structure.

[0008] The power transmission structure body includes a connector, a connecting seat, a pressure plate, and a buffer pad; the connector includes a flange, a connecting shaft, and limiters. One end of the connecting shaft is fixedly connected to the flange, and several limiters are connected to the surface of the connecting shaft near its other end. The limiters are equidistant and distributed around the axis of the connecting shaft; one end of the connecting seat has a groove for the other end of the connecting shaft and the limiters to engage, and the other end of the connecting shaft is engaged with the limiters in the groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The power transmission device proposed in this utility model can connect the tooling, which consists of high-precision wall panels, high-precision hydraulic bearing seats, and high-precision boring bars, to the boring machine to efficiently process the plum blossom cavity. It can improve parameters such as cutting speed and feed rate during the processing, thereby accelerating the processing progress.

[0011] Using a power transmission device to process the archway greatly reduces the precision requirements of the boring machine. The machining accuracy of the plum blossom cavity mainly depends on the tooling. At this time, the boring machine only serves as a power source for machining. The tooling breaks through the limitations of the boring machine and perfectly solves the machining accuracy requirements of the high-precision rolling mill for the archway. Attached Figure Description

[0012] Figure 1 A schematic diagram of the power transmission structure used for processing the archway of a 20-roll mill.

[0013] Figure 2 A three-dimensional schematic diagram of the power transmission structure used for the processing of the archway of a 20-roll mill.

[0014] Figure 3 A schematic diagram of the power transmission structure and tooling connection used for the processing of the archway of a 20-roll mill. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-3 In this embodiment of the utility model, a power transmission structure for processing the 20-roll mill stand includes a power transmission structure body 2. One end of the power transmission structure body 2 is fixedly connected to a high-precision boring bar 1, and the other end of the power transmission structure body 2 is connected to a boring machine, so that the power of the boring machine can be transmitted to the 20-roll mill stand processing fixture through the power transmission structure.

[0017] The power transmission structure body 2 includes a connector 21, a connecting seat 22, a pressure plate 23, and a buffer pad 24;

[0018] The connector 21 includes a flange 211, a connecting shaft 212, and limiting blocks 213. One end of the connecting shaft 212 is fixedly connected to the flange 211, and a plurality of limiting blocks 213 are connected to the surface of the connecting shaft 212 near its other end. The plurality of limiting blocks 213 are equidistant and distributed around the axis of the connecting shaft 212.

[0019] One end of the connecting seat 22 is provided with a slot for the other end of the connecting shaft 212 and the limiting fastener 213 to engage. The other end of the connecting shaft 212 is engaged with the limiting fastener 213 in the slot.

[0020] One end of the connecting seat 22 is also provided with a pressure plate 23. The pressure plate 23 can be composed of two C-shaped plates. The pressure plate 23 is fixedly connected to one end of the connecting seat 22 by bolts. The center of the pressure plate 23 has a circular hole and is coaxial with the connecting shaft 212. The pressure plate 23 is used to press the limit block 213 into the corresponding slot.

[0021] The main body of the connecting seat 22 is cylindrical, and several limiting grooves 221 are formed at one end of the connecting seat 22. The limiting grooves 221 are connected to the outer surface of the connecting seat 22. The tail of the fixing bolt is placed in the limiting groove 221, and the head of the fixing bolt passes through the corresponding mounting hole on the connecting seat 22. Figure 1 This is so that it can be connected to the boring machine.

[0022] A buffer pad 24 is provided between the limiting block 213 and the pressure plate 23, and a buffer pad 24 is also provided between the end face of the limiting block 213 and the slot. The buffer pad 24 can be made of plastic to improve the shock resistance of the connection.

[0023] The tooling, consisting of high-precision wall panels, high-precision hydraulic bearing seats, and high-precision boring bars, is installed on a boring machine in a suitable work area via a power transmission device. The tooling is securely fixed to the workpiece using bolts to ensure it does not loosen during machining. Simultaneously, the tooling's level is precisely adjusted using tools such as micrometers to ensure its installation accuracy meets preset requirements. The rolling mill archway blank is then hoisted to the tooling fixture position. The archway is positioned using the tooling's built-in positioning device, initially determining the relative position of the archway's plum blossom cavity machining area with the tooling cutting tool. After installation, a coordinate measuring machine is used to verify that the front and rear holes of the archway wall panel are at the same horizontal level.

[0024] High-precision tooling, composed of high-precision wall panels, high-precision hydraulic bearing seats, and high-precision boring bars, can reduce errors and rework during the machining process, thereby further improving machining efficiency.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power transmission structure for processing the archway of a 20-roll rolling mill, comprising a power transmission structure body (2), characterized in that, One end of the power transmission structure body (2) is fixedly connected to the high-precision boring bar (1), and the other end of the power transmission structure body (2) is connected to the power output shaft of the boring machine, so that the boring machine can obtain power and transmit it to the 20-roll mill stand processing fixture through the power transmission structure; the power transmission structure body (2) includes a connecting part (21), a connecting seat (22), a pressure plate (23) and a buffer pad (24); the connecting part (21) includes a flange (211), a connecting shaft (212) and a limit fastener. (213) One end of the connecting shaft (212) is fixedly connected to the flange (211). Several limiting blocks (213) are connected to the surface of the connecting shaft (212) near its other end. The several limiting blocks (213) are equidistant and distributed around the axis of the connecting shaft (212). One end of the connecting seat (22) is provided with a groove for the other end of the connecting shaft (212) and the limiting block (213) to cooperate. The other end of the connecting shaft (212) is engaged with the limiting block (213) in the groove.

2. The power transmission structure for processing the archway of a twenty-roll rolling mill according to claim 1, characterized in that, One end of the connecting seat (22) is also provided with a pressure plate (23). The pressure plate (23) can be composed of two C-shaped plates. The pressure plate (23) is fixedly connected to one end of the connecting seat (22) by bolts. The center of the pressure plate (23) has a circular hole and is coaxial with the connecting shaft (212). The pressure plate (23) is used to press the limit block (213) into the corresponding slot.

3. The power transmission structure for processing the archway of a twenty-roll mill according to claim 2, characterized in that, The main body of the connecting seat (22) is a cylinder and a number of limiting grooves (221) are opened at one end. The limiting grooves (221) are connected to the outer surface of the connecting seat (22). The tail of the fixing bolt is placed in the limiting groove (221) and the head of the fixing bolt passes through the corresponding mounting hole on the connecting seat (22).

4. The power transmission structure for processing the archway of a 20-roll mill according to claim 3, characterized in that, A buffer pad (24) is provided between the limiting block (213) and the pressure plate (23), and a buffer pad (24) is also provided between the end face of the limiting block (213) and the slot. The buffer pad (24) is made of plastic.

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