Roll changing robot for metallurgical plants

Abstract

The utility model discloses a metallurgical equipment roll changing manipulator relates to roll changing equipment field, and this kind of metallurgical equipment roll changing manipulator includes lifting appliance, the both ends of lifting appliance bottom surface are fixed with clamp component, and clamp component is composed of first clamping strip, second clamping strip and opening and closing subassembly, and first clamping strip and second clamping strip are oppositely arranged, and first clamping strip and second clamping strip are all with the bottom surface sliding connection of lifting appliance, this kind of metallurgical equipment roll changing roll changing equipment can connect first clamping strip and second clamping strip lower end after first clamping strip and second clamping strip close, thereby when the thread slip phenomenon of screw rod metal fatigue, first clamping strip and second clamping strip also will not suddenly open, thereby greatly improved the security of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of roll changing equipment, and in particular to a roll changing robot for metallurgical equipment. Background Technology

[0002] In the metallurgical industry, hot-rolled strip steel is pressed and formed by rolling mill equipment. Depending on the pressing requirements, the shape of the rolls is also different. When changing the rolls, because the rolls are heavy and bulky, a gantry crane is needed. A clamp is installed at the lifting end of the lifting device to hold the rolls and complete the replacement and placement of the rolls.

[0003] In existing technologies, the clamps used for roll replacement typically employ a screw-driven mechanism to bring two clamping plates together to clamp and lift the roll. No locking structure is installed on the clamping plates. This means that during the roll lifting process, the screw's threaded engagement is used to resist any lateral thrust on the roll. This arrangement causes significant damage to the screw's threads, leading to metal fatigue. This can result in the clamping plates failing to open and close properly, or even, in severe cases, the clamping plates suddenly opening during lifting, causing a several-ton roll to fall, posing a significant safety hazard. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a rolling mill changing robot for metallurgical equipment. During the process of closing the first and second clamping bars to hold and lift the rolling mill roll, the lower ends of the first and second clamping bars are connected, thereby completely preventing the first and second clamping bars from suddenly opening.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A metallurgical equipment roller changing robot includes a lifting device. Both ends of the bottom surface of the lifting device are fixed with clamping assemblies. The clamping assemblies consist of a first clamping bar, a second clamping bar, and an opening and closing assembly. The first clamping bar and the second clamping bar are arranged opposite to each other and are slidably connected to the bottom surface of the lifting device. The opening and closing assembly is installed on the bottom surface of the lifting device and is used to drive the first clamping bar and the second clamping bar to open and close. The two sets of clamping assemblies are arranged in a centrally symmetrical manner with respect to the center of the bottom surface of the lifting device.

[0007] A connecting component is provided between the lower ends of the first clamping bar and the second clamping bar, and the connecting component connects the lower ends of the first clamping bar and the second clamping bar when they are in the closed state.

[0008] Preferably, both the first and second clamping strips are L-shaped, with the horizontal portion of the first clamping strip and the horizontal portion of the opposite second clamping strip overlapping vertically.

[0009] Preferably, the connecting assembly comprises a longitudinal sliding slot formed in the middle of the transverse portion of the first clamping strip, the sliding slot is provided with a small diameter at both ends and a large diameter in the middle, a bolt is slidingly connected at the position of the axis of the sliding slot, the bolt is provided with a spring outside the middle position of the sliding slot, one end of the spring is in extrusion contact with an annular protrusion formed on the outer wall of the upper end of the bolt, and the other end of the spring is in extrusion contact with the inner wall of the sliding slot, a clamping groove is formed in the transverse portion of the second clamping strip at the position corresponding to the bolt, and the lower end of the bolt extends to the outside of the first clamping strip and is inserted into the clamping groove.

[0010] Preferably, the first clamping strip and the second clamping strip are both provided in an L shape, and the transverse portions of the first clamping strip and the second clamping strip are provided side by side.

[0011] Preferably, the connecting assembly comprises a telescopic electromagnet fixed to the side wall of the transverse portion of the first clamping strip away from the second clamping strip, the protruding end of the telescopic electromagnet penetrates through the transverse portion of the first clamping strip and extends to the transverse portion of the second clamping strip, a clamping groove is formed in the transverse portion of the second clamping strip at the position corresponding to the protruding end of the telescopic electromagnet, and the protruding end of the telescopic electromagnet is clamped with the clamping groove.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses through being connected with the first clamping strip and the second clamping strip lower end after the first clamping strip and the second clamping strip close, so when the screw thread slips phenomenon occurs when the metal fatigue of screw rod, the first clamping strip and the second clamping strip also do not suddenly open, thereby greatly improve the security of equipment operation.

[0014] The bolt provided by the utility model can automatically complete the locking connection effect of the first clamping strip and the second clamping strip by using the gravity of the roller during hoisting, and the structure is ingenious and reasonable, and the investment of the power unit is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the clamping groove position schematic view of the utility model.

[0017] Figure 3 It is the sliding slot position schematic view of the utility model.

[0018] Figure 4 It is the electromagnet telescopic iron structure schematic view of the utility model.

[0019] Figure 5 It is the clamping groove position schematic view of the utility model.

[0020] Reference numeral: 1, lifting appliance; 2, clamp assembly; 3, first clamping strip; 4, second clamping strip; 5, opening and closing assembly; 6, horizontal part; 7, vertical part; 8, sliding groove; 9, bolt; 10, spring; 11, clamping groove; 12, telescopic electromagnet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Embodiment one, please refer to Figures 1 to 3 The embodiment provides a metallurgical equipment roll changing manipulator, which comprises a lifting appliance 1, two clamp assemblies 2 are fixed to the bottom surface of the lifting appliance 1 at both ends, the two clamp assemblies 2 are arranged in central symmetry with the center of the bottom surface of the lifting appliance 1, the clamp assembly 2 is composed of a first clamping strip 3, a second clamping strip 4 and an opening and closing assembly 5, the first clamping strip 3 and the second clamping strip 4 are oppositely arranged, two sliding rods are symmetrically and slidably connected between the upper ends of the first clamping strip 3 and the second clamping strip 4 through sliding holes, the two ends of the two sliding rods are fixed to the bottom surface of the lifting appliance 1, the first clamping strip 3 and the second clamping strip 4 are both arranged in L shape, the first clamping strip 3 and the second clamping strip 4 both comprise a vertical part 7 arranged in a vertical direction and a horizontal part 6 arranged in a horizontal direction, the horizontal part 6 of the first clamping strip 3 and the horizontal part 6 of the second clamping strip 4 are arranged in an upper-lower overlapping mode;

[0023] The opening and closing assembly 5 comprises a bidirectional screw rod rotatably connected to the bottom surface of the lifting appliance 1 through a bearing, the upper end of the first clamping strip 3 and the upper end of the second clamping strip 4 are respectively threadedly connected to the two ends of the bidirectional screw rod through screw holes, one end of the bidirectional screw rod is connected to the output end of a motor, and the motor is fixed to the bottom surface of the lifting appliance 1;

[0024] When hoisting and clamping a roll, a gantry crane is operated, the lifting appliance 1 is operated to the roll, the two groups of first clamping strips 3 and second clamping strips 4 on the two sides are respectively located on the two sides of the roll, then a motor is driven to rotate, thereby driving the bidirectional screw rod to rotate, so that the first clamping strip 3 and the second clamping strip 4 are centered and close to each other, so that the horizontal part 6 of the first clamping strip 3 and the horizontal part 6 of the second clamping strip 4 are overlapped, then the lifting appliance 1 is lifted, the roll is abutted on the horizontal part 6 of the first clamping strip 3, and the two sides of the roll are respectively abutted on the outer walls of the vertical parts 7 of the first clamping strip 3 and the second clamping strip 4;

[0025] The middle part of the lifting appliance 1 is fixed with a vertical electric push rod, the extending end of the electric push rod extends through the lifting appliance 1 to below the lifting appliance 1 and is fixed with an abutting plate, after the roll is hoisted, the electric push rod is extended, the abutting plate is abutted against the outer wall of the roll, so that the roll is positioned and fixed, then the hoisting work of the roll is carried out;

[0026] The middle part of the transverse part 6 of the first clamping strip 3 is provided with a sliding groove 8 arranged in a longitudinal direction, the sliding groove 8 is provided with a small diameter at both ends and a large diameter in the middle part, a bolt 9 is slidably connected at the axis position of the sliding groove 8, the bolt 9 is provided with a spring 10 outside the middle part of the sliding groove 8, one end of the spring 10 is in extrusion contact with an annular protrusion formed on the outer wall of the upper end of the bolt 9, and the other end of the spring 10 is in extrusion contact with the inner wall of the sliding groove 8, the transverse part 6 of the second clamping strip 4 is provided with a clamping groove 11 at the position corresponding to the bolt 9, and the lower end of the bolt 9 extends to the outside of the first clamping strip 3 and is inserted into the clamping groove 11.

[0027] During the closing of the first clamping strip 3 and the second clamping strip 4 and the lifting of the lifting tool 1, the roller pushes the bolt 9 to slide downward compared with the transverse part 6 by abutting against the top surface of the bolt 9 and compressing the spring 10, and finally the roller abuts against the transverse part 6 of the first clamping strip 3, and the lower end of the bolt 9 is inserted into the clamping groove 11 to connect the lower ends of the first clamping strip 3 and the second clamping strip 4.

[0028] Embodiment two, please refer to Figure 4 and Figure 5 The first clamping strip 3 and the second clamping strip 4 are both arranged in an L shape, and the transverse part 6 of the first clamping strip 3 is arranged side by side with the transverse part 6 of the second clamping strip 4.

[0029] The transverse part 6 of the first clamping strip 3 is fixed with a telescopic electromagnet 12 on the side wall away from the second clamping strip 4, the extending end of the telescopic electromagnet 12 penetrates through the transverse part 6 of the first clamping strip 3 and extends to the transverse part 6 of the second clamping strip 4, the transverse part 6 of the second clamping strip 4 is provided with a clamping groove 11 at the position corresponding to the extending end of the telescopic electromagnet 12, and the extending end of the telescopic electromagnet 12 is clamped with the clamping groove 11.

[0030] After the first clamping strip 3 and the second clamping strip 4 are closed, the telescopic electromagnet 12 can be directly driven to extend, so that the extending end extends into the clamping groove 11 to connect the lower ends of the first clamping strip 3 and the second clamping strip 4.

[0031] In summary, after the first clamping strip 3 and the second clamping strip 4 are closed, the lower ends of the first clamping strip 3 and the second clamping strip 4 can be connected, so that when the screw rod appears metal fatigue and thread slippage phenomenon occurs, the first clamping strip 3 and the second clamping strip 4 will not suddenly open, thereby greatly improving the safety of the equipment operation.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A roll changing robot for metallurgical equipment comprising a hoist (1), characterized in that, The lifting appliance (1) bottom surface both ends are fixed with clamp assembly (2), clamp assembly (2) is by first clamping strip (3), second clamping strip (4) and open-close assembly (5) is formed, first clamping strip (3) and second clamping strip (4) are oppositely arranged, and first clamping strip (3) and second clamping strip (4) are all with the bottom surface sliding connection of lifting appliance (1), open-close assembly (5) is installed in the bottom surface of lifting appliance (1), is used to drive first clamping strip (3) and second clamping strip (4) open-close; The lower end between the first clamping strip (3) and the second clamping strip (4) is provided with a connecting assembly, and the connecting assembly connects the lower ends of the first clamping strip (3) and the second clamping strip (4) when the first clamping strip (3) and the second clamping strip (4) are closed.

2. The metallurgical plant roll changing robot of claim 1 wherein, The two groups of clamp assemblies (2) are arranged in a center-symmetric manner with the center of the bottom surface of the lifting appliance (1) as the center.

3. The metallurgical plant roll changing robot of claim 2 wherein, The first clamping strip (3) and the second clamping strip (4) are both arranged in an L shape, and the horizontal part (6) of the first clamping strip (3) and the horizontal part (6) of the second clamping strip (4) are arranged in an up-down overlapping manner.

4. The metallurgical plant roll changing robot of claim 3 wherein, The connecting assembly comprises a longitudinal sliding groove (8) formed in the middle of the horizontal part (6) of the first clamping strip (3), the sliding groove (8) is arranged with a small diameter at both ends and a large diameter in the middle, a latch (9) is slidably connected at the axial position of the sliding groove (8), a spring (10) is sleeved outside the latch (9) at the middle position of the sliding groove (8), one end of the spring (10) is in extrusion contact with the annular protrusion formed on the outer wall of the upper end of the latch (9), the other end of the spring (10) is in extrusion contact with the inner wall of the sliding groove (8), a clamping groove (11) is formed in the horizontal part (6) of the second clamping strip (4) corresponding to the position of the latch (9), the lower end of the latch (9) extends to the outside of the first clamping strip (3) and is inserted into the clamping groove (11), and the axial direction of the latch (9) is perpendicular to the opening and closing direction of the first clamping strip (3) and the second clamping strip (4).

5. The metallurgical plant roll changing robot of claim 2 wherein, The first clamping strip (3) and the second clamping strip (4) are both arranged in an L shape, and the horizontal part (6) of the first clamping strip (3) and the horizontal part (6) of the second clamping strip (4) are arranged side by side.

6. The metallurgical plant roll changing robot of claim 5 wherein, The connecting assembly comprises a telescopic electromagnet (12) fixed on the side wall of the horizontal part (6) of the first clamping strip (3) away from the second clamping strip (4), the extending end of the telescopic electromagnet (12) penetrates through the horizontal part (6) of the first clamping strip (3) and extends to the horizontal part (6) of the second clamping strip (4), a clamping groove (11) is formed in the horizontal part (6) of the second clamping strip (4) corresponding to the position of the extending end of the telescopic electromagnet (12), the extending end of the telescopic electromagnet (12) is clamped in the clamping groove (11), and the axial direction of the extending end of the telescopic electromagnet (12) is perpendicular to the opening and closing direction of the first clamping strip (3) and the second clamping strip (4).

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