Rapid blank centering device

Abstract

The utility model relates to a rapid blank centering device in the technical field of centering devices. The centering device comprises two centering assemblies used for centering the blank, the two centering assemblies are symmetrically arranged up and down, reciprocating lead screws used for controlling the centering assemblies to move up and down are installed at the two ends of the centering assemblies, and transmission rods used for controlling the reciprocating lead screws to rotate are installed at the upper ends of the reciprocating lead screws. After a second motor is started, a fourth bevel gear is matched with a third bevel gear to drive a transmission rod to rotate, so that a second bevel gear is matched with a first bevel gear to drive a reciprocating lead screw to rotate, when the reciprocating lead screw rotates, the reciprocating lead screw is matched with a second lead screw nut to drive a lifting plate to move up and down, and then the distance between the two centering assemblies is adjusted; and the two centering assemblies move synchronously, and the moving directions are opposite, so that the blanks with different pipe diameters can be centered conveniently.

Description

Technical Field

[0001] This utility model relates to the field of centering device technology, and in particular to a rapid centering device for blanks. Background Technology

[0002] A cold rolling mill is a process equipment that uses annular holes to cold roll rough tubes. The billet needs to be fed into the cold rolling mill through a centering device. For example, the rapid centering device for cold rolling mill billets disclosed in Chinese Patent Application No. CN201620514840.4 is as follows: the end of the guide groove near the clamping mechanism is a U-shaped guide groove, and the front end of the U-shaped guide groove is inserted into the clamping mechanism. The end of the guide groove near the feeding device is set at the top of the feeding device through a rotating shaft mechanism. The guide groove is an inclined groove, and the end of the guide groove near the feeding device gradually rises towards the end near the clamping mechanism. The billet enters the guide groove from the feeding device, climbs up the guide groove, and comes out of the U-shaped guide groove to dock with the mandrel. The billet enters from the feeding device, the guide groove is positioned by a cylinder, and then the billet enters one end of the guide groove. The billet climbs up the guide groove into the U-shaped guide groove, and then the billet drills out of the U-shaped guide groove to dock with the mandrel. However, it still has the following technical problems:

[0003] When feeding billets of different diameters to the cold rolling mill, it is necessary to adjust the height of the guide trough and use a cylinder to control the U-shaped guide trough to raise and lower it so that the billet and the cold rolling mill can be aligned. However, in actual use, the billet needs to be placed into the U-shaped guide trough before the cylinder can control the U-shaped guide trough to raise and lower it so that the billet and the mandrel can be connected. Therefore, the existing technology is quite cumbersome in the operation of aligning billets of different diameters. Utility Model Content

[0004] To address the problem mentioned in the background art that the alignment operation for blanks of different diameters is rather cumbersome, this utility model provides the following technical solution:

[0005] A rapid centering device for blanks includes a centering device;

[0006] The lower end of the centering device is equipped with a support device for supporting and limiting the centering device.

[0007] The centering device includes two centering components for centering the blank, and the two centering components are arranged symmetrically above and below each other. Reciprocating screws for controlling the up and down movement of the centering components are installed at both ends of the centering components, and a transmission rod for controlling the rotation of the reciprocating screws is installed at the upper end of the reciprocating screws.

[0008] Furthermore, the support device includes a column, an inspection door is installed on one side of the column, a base is installed at the bottom of the column, a top cover is installed at the top of the column, and a plurality of limiting holes for limiting the centering device are opened in the middle of the top cover.

[0009] Furthermore, the support device includes a column, an inspection door is installed on one side of the column, a base is installed at the bottom of the column, a top cover is installed at the top of the column, and a plurality of limiting holes for limiting the centering device are opened in the middle of the top cover.

[0010] Furthermore, a worm gear for controlling the rotation of the worm wheel is installed at the lower end of the column, and a motor for controlling the rotation of the worm gear is installed at one end of the worm gear.

[0011] Furthermore, the centering device includes a fixing block for limiting the centering component. A limiting rod is installed at the lower end of the fixing block for limiting the fixing block in conjunction with a limiting hole. A limiting plate is installed at the bottom of the limiting rod, and a lead screw nut is installed in the middle of the limiting plate for guiding the limiting plate in conjunction with a spiral groove.

[0012] Furthermore, a first bevel gear is installed at the top of the reciprocating screw, second bevel gears for meshing with the first bevel gear are installed at both ends of the transmission rod, and a third bevel gear is installed in the middle of the transmission rod.

[0013] Furthermore, a fourth bevel gear meshes with one end of the third bevel gear, and a second motor is installed at one end of the fourth bevel gear to cooperate with the fourth bevel gear in controlling the rotation of the third bevel gear.

[0014] Furthermore, the centering assembly includes a lifting plate, a trapezoidal block is installed at the upper end of the lifting plate, a slant is provided on one side of the trapezoidal block, connecting blocks are installed at both ends of the lifting plate, a connecting plate is installed at one end of the connecting block, and a screw nut is installed in the middle of the connecting plate for cooperating with the reciprocating screw to control the centering assembly to move up and down.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] After the second motor starts, the fourth bevel gear, in conjunction with the third bevel gear, drives the transmission rod to rotate, which in turn drives the second bevel gear, in conjunction with the first bevel gear, to rotate the reciprocating screw. When the reciprocating screw rotates, it works with the screw nut to move the lifting plate up and down, thereby adjusting the distance between the two centering components. This allows the two centering components to move synchronously in opposite directions, which is convenient for centering blanks of different diameters. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support device of this utility model;

[0019] Figure 3 This is a schematic diagram of the centering device of this utility model;

[0020] Figure 4 This is a schematic diagram of the centering component of this utility model.

[0021] The following is a list of component names represented by the various reference numerals in the attached figures:

[0022] 100-Support device, 110-Column, 111-Inspection door, 112-Base, 120-Top cover, 121-Limiting hole, 130-Rotating rod, 131-Helical groove, 132-Worm wheel, 140-Worm, 141-Gear motor 1;

[0023] 200-Alignment device, 210-Fixing block, 211-Limit rod one, 212-Limit rod two, 220-Limit plate, 221-Screw nut one, 230-Reciprocating screw, 231-First bevel gear, 240-Transmission rod, 241-Second bevel gear, 242-Third bevel gear, 250-Fourth bevel gear, 251-Reduction motor two, 260-Alignment assembly, 261-Lifting plate, 262-Trapezoidal block, 263-Hyperbend, 264-Connecting block, 265-Connecting plate, 266-Screw nut two. Detailed Implementation

[0024] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0025] Please see Figures 1-4 This utility model provides a rapid centering device for blanks, including a centering device 200, and a support device 100 for supporting and limiting the centering device 200 is installed at the lower end of the centering device 200. Through the support of the support device 100, the centering device 200 is stabilized at the upper end of the support device 100.

[0026] The support device 100 includes a column 110, with an inspection door 111 installed on one side of the column 110 to facilitate the inspection and maintenance of the internal components. A base 112 is fixedly installed at the bottom of the column 110, and a top cover 120 is installed at the top of the column 110. The top cover 120 is fixedly installed on the upper end of the column 110 by bolts. The top cover 120 has multiple limiting holes 121 in the middle for limiting the centering device 200, so that the centering device 200 can only move up and down at the upper end of the column 110.

[0027] A rotating rod 130 is movably installed inside the column 110. The upper end of the rotating rod 130 has a spiral groove 131 for controlling the lifting and lowering of the centering device 200. A worm gear 132 is fixedly installed at the bottom of the rotating rod 130. The column 110 has two chambers in its middle section, with the end of the rotating rod 130 with the spiral groove 131 located in the upper chamber and the end with the worm gear 132 located in the lower chamber. A worm 140 for controlling the rotation of the worm gear 132 is installed in the lower chamber of the column 110. A motor 141 for controlling the rotation of the worm 140 is installed at one end of the worm 140. The worm 140 is fixedly installed on the output shaft of the motor 141, so that when the motor 141 starts, it drives the worm 140 to rotate. The worm 140, in conjunction with the worm gear 132, drives the rotating rod 130 to rotate.

[0028] The centering device 200 includes two centering components 260 for centering the blank, and the two centering components 260 are arranged symmetrically above and below. Reciprocating screws 230 for controlling the vertical movement of the centering components 260 are installed at both ends of the centering components 260. The spiral grooves at the upper and lower ends of the reciprocating screws 230 have opposite rotation directions. A transmission rod 240 for controlling the rotation of the reciprocating screws 230 is installed at the upper end of the reciprocating screws 230.

[0029] A first bevel gear 231 is fixedly mounted on the top of the reciprocating screw 230. Second bevel gears 241, which mesh with the first bevel gear 231, are fixedly mounted at both ends of the transmission rod 240. A third bevel gear 242 is fixedly mounted in the middle of the transmission rod 240. A fourth bevel gear 250 meshes with one end of the third bevel gear 242. A second motor 251, which works with the fourth bevel gear 250 to control the rotation of the third bevel gear 242, is mounted on one end of the fourth bevel gear 250. The fourth bevel gear 250 is fixedly mounted on the output shaft of the second motor 251. When the second motor 251 starts, the fourth bevel gear 250, in conjunction with the third bevel gear 242, drives the transmission rod 240 to rotate. This causes the second bevel gear 241, in conjunction with the first bevel gear 231, to drive the reciprocating screw 230 to rotate, thereby controlling the two centering components 260 to move in opposite directions.

[0030] The centering device 200 includes a fixing block 210 for limiting the centering assembly 260. Multiple limiting rods 211 are fixedly installed at the lower end of the fixing block 210 to limit the fixing block 210 in conjunction with limiting holes 121. A limiting plate 220 is installed at the bottom of the limiting rods 211. A screw nut 221 is fixedly installed in the middle of the limiting plate 220 to guide the limiting plate 220 in conjunction with a spiral groove 131. When the rotating rod 130 rotates, the screw nut 221 moves up and down under the guidance of the spiral groove 131. When centering the billet is required, the rotating rod 130 rotates, and the screw nut 221 moves upward under the guidance of the spiral groove 131, so that the billet and the mandrel of the cold rolling mill are aligned. When centering billets of different diameters, it is only necessary to control the distance between the two centering assemblies 260 so that the billet is in the middle of the two centering assemblies 260.

[0031] The centering assembly 260 includes a lifting plate 261. Trapezoidal blocks 262 are symmetrically mounted on the upper end of the lifting plate 261. One side of each trapezoidal block 262 has a bevel 263 to facilitate the placement of the blank between the two trapezoidal blocks 262. Connecting blocks 264 are fixedly mounted at both ends of the lifting plate 261. A connecting plate 265 is fixedly mounted at one end of each connecting block 264. A screw nut 266 is fixedly mounted in the middle of the connecting plate 265 to cooperate with the reciprocating screw 230 to control the vertical movement of the centering assembly 260.

[0032] When the reciprocating screw 230 rotates, it works with the screw nut 266 to drive the lifting plate 261 to move up and down, thereby adjusting the distance between the two centering components 260, so that the two centering components 260 move synchronously and in opposite directions, so as to center the blanks of different diameters.

[0033] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A rapid centering device for blanks, comprising a centering device (200), characterized in that: The lower end of the centering device (200) is equipped with a support device (100) for supporting and limiting the centering device (200); The centering device (200) includes two centering components (260) for centering the blank, and the two centering components (260) are arranged symmetrically above and below. The two ends of the centering components (260) are equipped with reciprocating screws (230) for controlling the centering components (260) to move up and down. The upper end of the reciprocating screws (230) is equipped with a transmission rod (240) for controlling the rotation of the reciprocating screws (230).

2. The green log rapid centering device of claim 1, wherein: The support device (100) includes a column (110), an inspection door (111) is installed on one side of the column (110), a base (112) is installed at the bottom of the column (110), and a top cover (120) is installed at the top of the column (110). The top cover (120) has a plurality of limiting holes (121) in the middle for limiting the centering device (200).

3. A green log rapid centering device as defined in claim 2 wherein: The column (110) is equipped with a rotating rod (130) inside. The upper end of the rotating rod (130) is provided with a spiral groove (131) for controlling the centering device (200) to rise and fall. The bottom of the rotating rod (130) is equipped with a worm gear (132).

4. A green log rapid centering device as defined in claim 3 wherein: The lower end of the column (110) is equipped with a worm (140) for controlling the rotation of the worm gear (132), and one end of the worm (140) is equipped with a motor (141) for controlling the rotation of the worm (140).

5. The green log rapid centering device of claim 3, wherein: The centering device (200) includes a fixing block (210) for limiting the centering component (260). The lower end of the fixing block (210) is equipped with a limiting rod (211) for limiting the fixing block (210) in conjunction with the limiting hole (121). The bottom of the limiting rod (211) is equipped with a limiting plate (220). The middle part of the limiting plate (220) is equipped with a lead screw nut (221) for guiding the limiting plate (220) in conjunction with the spiral groove (131).

6. The green log rapid centering device of claim 1 wherein: The top of the reciprocating screw (230) is equipped with a first bevel gear (231), the two ends of the transmission rod (240) are equipped with second bevel gears (241) for meshing with the first bevel gear (231), and the middle part of the transmission rod (240) is equipped with a third bevel gear (242).

7. A green log rapid centering device as defined in claim 6 wherein: One end of the third bevel gear (242) is meshed with a fourth bevel gear (250), and one end of the fourth bevel gear (250) is equipped with a second motor (251) for cooperating with the fourth bevel gear (250) to control the rotation of the third bevel gear (242).

8. The green log rapid centering device of claim 1, wherein: The centering assembly (260) includes a lifting plate (261), a trapezoidal block (262) is installed at the upper end of the lifting plate (261), a slant (263) is provided on one side of the trapezoidal block (262), connecting blocks (264) are installed at both ends of the lifting plate (261), a connecting plate (265) is installed at one end of the connecting block (264), and a screw nut (266) is installed in the middle of the connecting plate (265) for cooperating with the reciprocating screw (230) to control the centering assembly (260) to move up and down.

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