A vertical lathe machining device for metallurgical rolls

Abstract

The application discloses a vertical lathe processing device for metallurgical rolls, which comprises a truss type support workbench, a slide rest tool rest, a roll support seat and a workbench support base. The roll support seat is driven by a driving device to rotate in the vertical direction as the rotating shaft and is used for vertically supporting the roll. The workbench support base is arranged around the roll support seat. The truss type support workbench has a central work area and a plurality of trusses. The trusses are arranged around the central work area and are fixedly connected with each other. A plurality of inverted L-shaped tool rest columns are arranged on the trusses. The inverted L-shaped tool rest column comprises a transverse arm and a longitudinal column. The longitudinal column is connected with the workbench support base through a vertical lifting mechanism. The slide rest tool rest for fixedly mounting a turning tool is arranged on the transverse arm to move in the radial direction. The transverse arms of the plurality of inverted L-shaped tool rest columns are arranged at different heights. The application enables the roll to be simultaneously processed and turned at multiple heights in the vertical posture, thereby improving the processing efficiency.

Description

Technical Field

[0001] This invention relates to a roll processing apparatus, and more particularly to a vertical lathe processing apparatus for metallurgical rolls. Background Technology

[0002] Large metallurgical rolls offer advantages such as higher hardness, better wear resistance, longer service life, and better economic benefits. Generally, large rolls operate under both hot and cold rolling conditions, with their working surfaces subjected to significant contact stress, shear stress, and cyclic bending stress. Uneven wear, fatigue cracks, peeling, indentation, and flaking are common surface defects. Severe damage can lead to shoulder chipping and large-scale spalling, seriously affecting production safety and product quality. Failure to repair in a timely manner can result in serious production accidents and roll scrapping. Therefore, large metallurgical rolls require regular surface grinding to ensure surface quality and performance. Furthermore, before welding or bushing repairs, the working surface diameter of large scrap rolls needs to be reduced to a certain size to achieve remanufacturing performance. Most rolls have a diameter greater than 1000mm, and the radial machining amount is generally greater than 150mm. Traditional horizontal lathes have long processing cycles, extremely low efficiency, and high processing costs.

[0003] Conventional turning machining primarily utilizes horizontal lathes, which not only occupy a large area and have low machining efficiency, but also involve cumbersome clamping work before and after machining due to the large size and weight of the rolls. Furthermore, the heavy rolls cause uneven stress on the lathe bearings and some deformation in the middle of the rolls, affecting the coaxiality and cylindricity of the roll body. Additionally, the complex structure of horizontal lathes and the large driving torque of the rolls result in significant vibration, which also negatively impacts machining accuracy. Finally, horizontal lathes often use a single tool, leading to low machining efficiency, long production cycles, and high machining costs. Moreover, the clamping and positioning method of horizontal lathes limits and affects the accuracy of the cylindricity, coaxiality, and surface roughness of the working surface. Summary of the Invention

[0004] In view of the above-mentioned defects in the prior art, the present invention aims to provide a vertical lathe machining device for metallurgical rolls, with the purpose of improving machining efficiency and ensuring machining accuracy.

[0005] The technical solution of this invention is as follows: A vertical lathe machining device for metallurgical rolls includes a truss-type support workbench, a slide tool post, a roll support seat, and a workbench support base. The roll support seat is driven by a drive device to rotate around a vertical axis. The top of the roll support seat is provided with a support boss for vertically supporting the roll. The workbench support base is arranged around the roll support seat. The truss-type support workbench has a central working area and several trusses. The central working area is a hollow space, and the trusses surround... The truss is arranged around the central working area and fixedly connected to each other. It is equipped with several inverted L-shaped tool holder columns, each including a transverse arm and a longitudinal column. The longitudinal column is connected to the work frame support base through a vertical lifting mechanism. The slide tool holder is arranged on the transverse arm. The sliding direction of the slide of the slide tool holder is arranged radially parallel to the rotation plane of the roll support. The slide of the slide tool holder is used to fix and install turning tools. The transverse arms of the multiple inverted L-shaped tool holder columns are arranged at different heights.

[0006] Furthermore, in order to improve the stability of the rolls during turning, the work stand support base and the inverted L-shaped tool post column are evenly distributed circumferentially on the roll support base.

[0007] Furthermore, both the workbench support base and the inverted L-shaped tool holder column are provided in threes.

[0008] Furthermore, the horizontal arms of the plurality of inverted L-shaped tool holder columns are spaced equally in the vertical direction.

[0009] Furthermore, the truss includes truss columns and truss beams, the truss columns are fixedly connected to the transverse arms of the inverted L-shaped knife holder column, and the truss beams are connected between the truss columns.

[0010] Furthermore, the truss beam has multiple layers, with the truss beams in each layer spaced apart.

[0011] Furthermore, the truss beams of each layer are set at the same height as the transverse arms of the inverted L-shaped knife holder columns.

[0012] Furthermore, the transverse arm of the inverted L-shaped tool holder column is hollow, and the slide tool holder is disposed inside the transverse arm and extends outward from the opening at the head end of the transverse arm.

[0013] Furthermore, the slide table tool holder is provided with a slide rail and a fixed frame. The slide table cooperates with the slide rail, the slide rail is fixedly installed on the fixed frame, the slide rail extends outward from the opening at the head end of the transverse arm and is fixed to the head end of the fixed frame through a tripod, and the fixed frame is fixed inside the transverse arm.

[0014] Furthermore, the support boss is provided with a central through hole, and a rubber positioning ring is embedded in the central through hole.

[0015] The advantages of this invention compared to the prior art are: (1) The present invention performs vertical processing of the rolls. By utilizing the workpiece's own weight, it is easier to position and clamp large workpieces on the vertical processing worktable. At the same time, it not only saves processing space, but also improves processing efficiency by using vertical multi-tools.

[0016] (2) Considering the large axial dimension of the large roll, if a traditional gantry truss is used, it may result in insufficient rigidity in the vertical direction, causing the tool holder to shake during processing and affecting the processing quality. However, the present invention is designed with a lifting structure through the roll body, which not only reduces the processing cost but also improves the structural stability of the overall device. The triangular support frame structure makes the cutting stable during the cutting process when the tool feeds in three directions. Attached Figure Description

[0017] Figure 1 This is a perspective view of a vertical lathe machining apparatus for metallurgical rolls, as shown in the embodiment.

[0018] Figure 2 This is a front view schematic diagram of a vertical lathe machining apparatus for metallurgical rolls, as shown in the embodiment.

[0019] Figure 3 This is a schematic diagram showing the connection between the inverted L-shaped tool holder column and the vertical lifting mechanism.

[0020] Figure 4 This is a schematic diagram of the structure of the roll support.

[0021] Figure 5 This is a schematic diagram of the structure of the rubber positioning ring.

[0022] Figure 6 This is a schematic diagram of the slide table tool holder.

[0023] Figure 7 A schematic diagram of the structure of a vertical lathe machining device for metallurgical rolls. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments, but these are not intended to limit the scope of the invention.

[0025] Please combine Figure 1 , Figure 2 As shown, this embodiment relates to a vertical lathe machining apparatus for metallurgical rolls, including a truss-type support workbench 1, a slide tool post 2, a roll support seat 3, and a workbench support base 4. Figure 4 , Figure 5As shown, the roll support 3 is bolted to the rotating worktable via the bottom positioning hole 301. The rotating worktable acts as a drive device to drive the roll support 3 to rotate around the vertical axis. The roll support 3 is used to vertically support the roll. The upper part of the roll support 3 is a tapered section 302. The top surface of the tapered section 302 is provided with a support boss 303 for contacting and supporting the end face of the roll 6. The support boss 303 has a central through hole in the middle. One end of the roll 6 is inserted into the central through hole. A rubber positioning ring 304 is embedded in the surface of the central through hole of the support. The top of the rubber positioning ring 304 has a flange surface 304a, which fits against the boss on the end face of the roll body of the roll 6, providing a certain buffering and protection function. The bottom opening slope of the rubber positioning ring 304 is slightly greater than the slope of the conical surface of the roll 6, so that when the roll 6 is inserted into the support boss 303, it squeezes the rubber positioning ring 304 to produce elastic deformation and increase the friction between the roll 6 and the roll support seat 3, thereby achieving the fastening of the roll 6 under the action of gravity and friction.

[0026] Please combine Figure 3 As shown, multiple workbench support bases 4 are arranged around the roll support base 3. The number of workbench support bases 4 is determined according to the number of inverted L-shaped tool holder columns 13 on the truss-type support workbench 1. To improve the stability of the overall device, three workbench support bases 4 are provided, distributed in three equal parts around the circumference of the roll support base 3, and fixedly installed on the ground around the roll support base 3. Each workbench support base 4 is connected to the inverted L-shaped tool holder column 13 of the truss-type support workbench 1 through a vertical lifting mechanism 5. The vertical lifting mechanism 5 drives the truss-type support workbench 1 to move up and down. In this embodiment, the vertical lifting mechanism 5 is a screw jack, which realizes the lifting and lowering movement of the truss-type support workbench 1. The truss-type support workbench 1 achieves vertical movement during turning.

[0027] The truss-type support work frame 1 has a central work area 11 and several trusses. The central work area 11 is a hollow space. During turning, the vertical rolls are located in the central work area 11. The trusses are arranged around the central work area 11 and fixedly connected to each other.

[0028] Specifically, the truss consists of truss columns 1201 and truss beams 1202. The number of truss columns 1201 is the same as that of the work frame support base 4, which is three. Truss beams 1202 of the same length are connected between the truss columns 1201 to form an equilateral triangle structure. The middle area of ​​the equilateral triangle formed by the truss beams 1202 is the aforementioned central working area 11.

[0029] The truss beams 1202 form a three-layered equilateral triangular structure with equal spacing between them. Three inverted L-shaped tool holder columns 13 are fixedly connected to the truss columns 1201. Each inverted L-shaped tool holder column 13 includes a transverse arm 1301 and a longitudinal column 1302, with triangular reinforcing ribs 1303 between the transverse arm 1301 and the longitudinal column 1302. The bottom of the longitudinal column 1302 is connected to a screw jack, which drives the longitudinal column 1302 to move up and down, thereby causing the entire truss-type support frame 1 to move up and down. The end of the transverse arm 1301 is fixed to the longitudinal column 1302, and the head of the transverse arm 1301 is fixed to the truss column 1201. At the same time, the transverse arm 1301 is at the same height as the truss beam 1202. Specifically, the transverse arms 1301 of the three inverted L-shaped tool holder columns 13 are at the same height as the three layers of truss beam 1202, so that the transverse arms 1301 also form three layers with the same spacing.

[0030] The hollow tube frame structure of the transverse arm 1301 of the inverted L-shaped tool holder column 13 has a sliding tool holder 2 installed inside the transverse arm 1301. For example... Figure 6 As shown, the slide table tool holder 2 is equipped with a slide rail 201 and a fixed frame 202. The slide table 203 cooperates with the slide rail 201, and the slide rail 201 is fixedly installed on the fixed frame 202. The fixed frame 202 is fixedly installed inside the transverse arm 1301. The slide rail 201 extends outward from the opening at the head end of the transverse arm 1301 and is fixed to the head end of the fixed frame 202 through a tripod 204. The extension direction of the slide rail 201 is in the same direction as the length direction of the transverse arm 1301. The three inverted L-shaped tool holder columns 13 are actually evenly distributed around the circumference of the roll support 3. The transverse arm 1301 of the inverted L-shaped tool holder columns 13 points to the vertical axis of rotation of the roll 6. The slide table 203 is driven by the electric screw 205 to move along the slide rail 201, that is, to move radially along the roll 6. A turning tool is fixedly installed on the slide table 203 of the slide table tool holder 2. The movement of the slide table 203 carries the turning tool to achieve radial feed. Each layer of transverse arm 1301 is equipped with the same slide table tool holder 2 and turning tools. The vertical spacing of the turning tools in different layers is also the same. In this way, when the truss support work frame 1 moves vertically by the distance between one transverse arm 1301, it can complete the processing of the roll 6, which is three times the length of that distance.

[0031] Please combine Figure 7As shown, the main working process of the vertical lathe machining device for metallurgical rolls is as follows: After the roll 6 is fixed to the roll support 3, the truss-type support workbench 1, which is connected to the workbench support base 4, is hoisted from above the roll 6, so that the roll 6 is located in the central working area 11, and the workbench support base 4 is located at the three circumferential divisions of the roll 6. After hoisting into place, the workbench support base 4 is fixedly installed on the ground. The worktable is started to rotate the roll 6, and at the same time, the vertical lifting mechanism 5 and the slide tool holder 2 cooperate to enable the turning tool to move the roll 6 axially and feed radially, thereby realizing the turning machining of the roll 6.

Claims

1. A vertical lathe machining apparatus for metallurgical rolls, characterized in that, The system includes a truss-type support work frame, a sliding tool holder, a roll support base, and a work frame support base. The roll support base is driven by a drive device to rotate around a vertical axis. The top of the roll support base has a support boss for vertically supporting the rolls. The work frame support base is arranged around the roll support base. The truss-type support work frame has a central working area and several trusses. The central working area is a hollow space. The trusses are arranged around the central working area and fixedly connected to each other. Several inverted L-shaped tool holder columns are provided on the trusses. Each inverted L-shaped tool holder column includes a transverse arm and a longitudinal column. The longitudinal column is connected to the work frame support base via a vertical lifting mechanism. The sliding tool holder is arranged on the transverse arm. The sliding direction of the sliding table of the sliding tool holder is radially parallel to the rotation plane of the roll support base. The slide of the slide tool holder is used to fix and install turning tools. The horizontal arms of the multiple inverted L-shaped tool holder columns are set at different heights. There are three worktable support bases and three inverted L-shaped tool holder columns, which are evenly distributed around the circumference of the roll support. The horizontal arms of the multiple inverted L-shaped tool holder columns are spaced at the same distance in the vertical direction. The truss includes truss columns and truss beams. The truss columns are fixedly connected to the horizontal arms of the inverted L-shaped tool holder columns. The truss beams are connected between the truss columns. The truss beams are multi-layered, with intervals between each layer of truss beams. Each layer of truss beams is set at the same height as the horizontal arms of the inverted L-shaped tool holder columns. The horizontal arms of the inverted L-shaped tool holder columns are hollow. The slide tool holder is set inside the horizontal arm and extends outward from the opening at the head end of the horizontal arm.

2. The vertical lathe machining apparatus for metallurgical rolls according to claim 1, characterized in that, The slide table tool holder is provided with a slide rail and a fixed frame. The slide table cooperates with the slide rail. The slide rail is fixedly installed on the fixed frame. The slide rail extends outward from the opening at the head end of the transverse arm and is fixed to the head end of the fixed frame through a tripod. The fixed frame is fixed inside the transverse arm.

3. The vertical lathe machining apparatus for metallurgical rolls according to claim 1, characterized in that, The support boss has a central through hole, and a rubber positioning ring is embedded in the central through hole.

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