Centering device for front table of phi 120mm Aselle pipe mill

Abstract

The utility model discloses a phi 120mm Aselle pipe mill foreground centering device, which is characterized in that a foreground positioning seat is detachably arranged in a front core rod circulating area of a limiting trolley, the foreground positioning seat is open, a centering mounting area is formed in the open area of the foreground positioning seat, a centering device is mounted in the centering mounting area, and a mandrel is mounted in the centering mounting area. The centering device comprises a plurality of longitudinal centering devices and a plurality of transverse centering devices, the longitudinal centering devices and the transverse centering devices are arranged along a core rod circulating area in front of the limiting trolley, the longitudinal centering devices are arranged in the vertical direction of the front table positioning seat, and the transverse centering devices are arranged in the horizontal direction of the front table positioning seat; the central line of the longitudinal centering device and the central line of the transverse centering device coincide with the center of the pipe mill, the longitudinal centering device comprises a base and a fixing part arranged on the base, clamping ends are arranged on the fixing part, and the clamping ends are symmetrically arranged and close to the central position of a hollow billet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of slope protection net weaving, specifically relates to a kind of φ120mm aseel pipe mill front desk centering device. BACKGROUND

[0002] At present, Pipe mill front desk has no centering device, mandrel shakes greatly, and the wall thickness of rolled seamless pipe cannot be guaranteed, the mandrel is clamped by the limiting trolley, and the mandrel shakes greatly, the mandrel is broken seriously, the mandrel is consumed greatly, and the pawl of limiting trolley is consumed greatly.

[0003] Prior art discloses the blank pipe as shown in Figure 1 The blank pipe is formed by three cylindrical centering rollers with parallel rolling axes and is in contact with the deformation principle of the cross-rolling pipe mill, and the deformation principle of the cross-rolling pipe mill is cross-rolling, and the blank pipe is tangent to stabilize, the structure of the above-mentioned prior art is complex, and multiple centering devices are needed when the mandrel and the blank pipe are clamped simultaneously during rolling, which leads to complex on-site installation.

[0004] In view of the above factors, a φ120mm aseel pipe mill front desk centering device is provided to ensure the quality of the pipe mill rolled seamless pipe, reduce the consumption of the mandrel, reduce the consumption of the limiting trolley block, and reduce the cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a φ120mm aseel pipe mill front desk centering device to solve the problems in the above background technology.

[0006] The utility model aims at providing a φ120mm aseel pipe mill front desk centering device to solve the problems in the above background technology.

[0007] The centering device includes longitudinal centering device and transverse centering device, and the longitudinal centering device and the transverse centering device are arranged in the limiting trolley front mandrel circulation area, the longitudinal centering device is arranged in the vertical direction of the front desk positioning seat, and the transverse centering device is arranged in the horizontal direction of the front desk positioning seat.

[0008] The center lines of the longitudinal centering device and the transverse centering device coincide with the center of the pipe mill.

[0009] Further, the longitudinal centering device includes a base and a fixed part arranged on the base, the fixed part is provided with a clamping end, the clamping end is symmetrically arranged, and the clamping end is close to the center position of the blank pipe.

[0010] Further, the bottom of the centering installation area is provided with symmetrical support columns which are inserted into the positioning holes in the bottom of the base.

[0011] Further, the base is provided with a centering part which is a cylinder structure, and the end position of the centering part is provided with a semicircular ball head structure.

[0012] The longitudinal axis of the centering part coincides with the center of the pipe mill.

[0013] Further, the bottom of the fixing part is slidably arranged in a slide channel in the base, the two sides of the fixing part are connected with the output ends of hydraulic cylinders which are arranged on the base, and the rear end of the hydraulic cylinder is connected with the front stage positioning seat.

[0014] Further, the end of the clamping end is a semispherical head structure, and the position of the clamping end is higher than the height of the horizontal center line of the pipe mill.

[0015] Further, the transverse centering device is arranged on the inner wall of the front stage positioning seat in a detachable manner.

[0016] Further, the transverse centering device and the front stage positioning seat are detachably connected through bolts.

[0017] The transverse centering device and the longitudinal centering device are the same in structure, the transverse centering device is provided with positioning plates on the upper and lower sides, and the positioning plates are connected with the front stage positioning seat through bolts.

[0018] Compared with the prior art, the centering device has the advantages that:

[0019] The centering device can conveniently clamp the mandrel and the blank pipe during the rolling process, and can be conveniently disassembled and replaced in a damaged state.

[0020] The centering device can prevent the mandrel from breaking and ensure the wall thickness of the rolled seamless pipe.

[0021] The longitudinal centering device and the transverse centering device ensure the quality of the rolled seamless pipe of the pipe mill, reduce the consumption of the mandrel, reduce the consumption of the limiting trolley clamping block, and reduce the cost. DRAWINGS

[0022] Figure 1 is a plan view of the connection of the front stage positioning seat and the centering device of the utility model;

[0023] Figure 2 is a plan view of the front stage positioning seat of the utility model;

[0024] Figure 3 is the longitudinal centering device and the pipe cooperation schematic view of the utility model;

[0025] Figure 4 is the longitudinal centering device schematic view of the utility model;

[0026] Figure 5 is the transverse centering device and the front desk positioning seat connection schematic view of the utility model. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0028] In the description of the utility model, it is necessary to explain that the terms "mounting", "connection" and "connection" should be understood in a broad sense unless there are explicit provisions and limitations, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be directly connected, or indirectly connected through an intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the description of the utility model, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] As shown in Figures 1-5 A φ120mm Asarel pipe mill front desk centering device, comprising a front desk positioning seat 1, the front desk positioning seat 1 is detachably arranged in the limit trolley front core rod circulation area, the front desk positioning seat 1 is arranged in an open manner, the open area on the front desk positioning seat 1 forms a centering installation area 2, and the centering installation area 2 is provided with a centering device;

[0031] The centering device comprises longitudinal centering devices 3 and transverse centering devices 4, which are arranged along the front mandrel circulation area of the limiting trolley, the longitudinal centering devices 3 are arranged in the vertical direction of the front platform positioning seat 1, and the transverse centering devices 4 are arranged in the horizontal direction of the front platform positioning seat 1.

[0032] The center lines of the longitudinal centering devices 3 and the transverse centering devices 4 coincide with the center of the pipe mill.

[0033] In order to facilitate centering and fixing at the front end by the longitudinal centering device 3 in the use state, the longitudinal centering device 3 comprises a base 3-1 and a fixing part 3-2 arranged on the base 3-1, a clamping end 3-3 is arranged on the fixing part 3-2, the clamping end 3-3 is symmetrically arranged, and the clamping end 3-3 is close to the center position of the tube.

[0034] In order to facilitate disassembly and replacement in the use state, symmetrically arranged supporting columns 5 are arranged at the bottom of the centering mounting area 2, and the supporting columns 5 are inserted and matched with the positioning holes arranged at the bottom of the base 3-1.

[0035] In order to facilitate centering operation from the bottom by the centering part 3-4 in the use state, the centering part 3-4 is arranged on the base 3-1, the centering part 3-4 is a cylinder structure, and the end position of the centering part 3-4 is arranged as a semispherical head structure.

[0036] The longitudinal axis of the centering part 3-4 coincides with the center of the pipe mill.

[0037] In the use state, the centering part 3-4 is arranged, the centering part 3-4 is a cylinder structure, can finely adjust the vertical rolling line, and can play a fixing role at the bottom.

[0038] In order to facilitate adjustment of the fixing part in the use state, the bottom of the fixing part 3-2 is slidably arranged in the slide arranged on the base 3-1, the two sides of the fixing part 3-2 are connected with the output ends of hydraulic cylinders, the hydraulic cylinders are arranged on the base 3-1, and the rear end of the hydraulic cylinder is connected with the front platform positioning seat 1.

[0039] The end of the clamping end 3-3 is a semispherical head structure, and the position of the clamping end 3-3 is higher than the height of the horizontal center line of the pipe mill.

[0040] In order to facilitate disassembly and replacement in the use state, the transverse centering device 4 is arranged in a detachable manner on the inner wall of the front platform positioning seat 1.

[0041] In order to facilitate fixing in the use state, the transverse centering device 4 and the front platform positioning seat 1 are detachably connected by bolts.

[0042] The transverse centering device 4 is provided with positioning plates 6 on the upper and lower sides, which are connected with the front stage positioning seat 1 by means of bolts.

[0043] The positioning plates 6 on the upper and lower sides of the transverse centering device 4 are connected with hydraulic cylinders respectively.

[0044] The center of the longitudinal centering device 3 and the transverse centering device 4 coincides with the center of the pipe mill, and the mandrel is used for rolling seamless pipes in the clamped condition, and the longitudinal centering device 3 and the transverse centering device 4 are used for centering the blank pipe and the mandrel respectively, and the centering of the longitudinal centering device 3 and the transverse centering device 4 ensures the perpendicularity of the mandrel, reduces the shaking of the mandrel, reduces the consumption of the mandrel, reduces the consumption of the limiting trolley clamping block, and ensures the quality of the rolled seamless pipes.

[0045] The longitudinal centering device 3 is used for centering the blank pipe, and two longitudinal centering devices 3 are arranged along the direction of the blank pipe, the transverse centering device 4 is used for centering the mandrel, a plurality of transverse centering devices 4 are arranged when centering the mandrel, and each transverse centering device 4 is arranged alternately on the two sides of the mandrel.

[0046] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

[0047] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A φ120mm Asar rolling mill front station centering device, comprising a front station positioning seat (1), the front station positioning seat (1) is detachably arranged in the front core rod circulation area of the limiting trolley, characterized in that: The front desk positioning seat (1) is provided in an open manner, and the open area of the front desk positioning seat (1) forms a centering installation area (2) in which a centering device is installed; The centering device includes longitudinal centering devices (3) and transverse centering devices (4), and a plurality of longitudinal centering devices (3) and transverse centering devices (4) are arranged along the front core rod circulation area of the limiting trolley, the longitudinal centering devices (3) are arranged in the vertical direction of the front desk positioning seat (1), and the transverse centering devices (4) are arranged in the horizontal direction of the front desk positioning seat (1). The center lines of the longitudinal centering devices (3) and the transverse centering devices (4) coincide with the center of the pipe mill.

2. A φ 120 mm Asar rolling mill front stage centering device according to claim 1, characterized in that: The longitudinal centering device (3) includes a base (3-1) and a fixed part (3-2) arranged on the base (3-1), the fixed part (3-2) is provided with clamping ends (3-3), the clamping ends (3-3) are symmetrically arranged, and the clamping ends (3-3) are close to the center position of the pipe.

3. A φ 120 mm mandrel mill front station centering device according to claim 2, characterized in that: The bottom of the centering installation area (2) is provided with symmetrical support columns (5), and the support columns (5) are inserted and matched with the positioning holes opened at the bottom of the base (3-1).

4. A φ 120 mm mandrel mill front station centering device according to claim 3, characterized in that: The base (3-1) is provided with a centering part (3-4), the centering part (3-4) is a gas cylinder structure, and the end position of the centering part (3-4) is provided with a semicircular ball head structure. The longitudinal axis of the centering part (3-4) coincides with the center of the pipe mill.

5. A φ 120 mm mandrel mill front station centering device according to claim 4, characterized in that: The bottom of the fixed part (3-2) is slidably arranged in the slide opening of the base (3-1), the two sides of the fixed part (3-2) are connected with the output ends of the hydraulic cylinders, the hydraulic cylinders are arranged on the base (3-1), and the rear end of the hydraulic cylinder is connected with the front desk positioning seat (1).

6. A φ 120 mm mandrel mill front station centering device according to claim 5, characterized in that: The end of the clamping end (3-3) is a semispherical head structure, and the position of the clamping end (3-3) is higher than the height of the horizontal center line of the pipe mill.

7. The front centering device for a φ120mm Assel tube mill according to claim 6, characterized in that: The transverse centering device (4) is detachably arranged on the inner wall of the front desk positioning seat (1).

8. A φ 120 mm mandrel mill front station centering device according to claim 7, characterized in that: The detachable connection between the transverse centering device (4) and the front desk positioning seat (1) is a bolt connection; The transverse centering device (4) and the longitudinal centering device (3) have the same structure, the transverse centering device (4) is provided with a positioning plate (6) above and below, and the positioning plate (6) is connected with the front desk positioning seat (1) by bolts.

Images