Seamless steel tube heat treatment transfer device

Abstract

The utility model relates to a seamless steel tube heat treatment transfer device. The device comprises a lifting seat and two sets of clamping modules arranged in a mirror image mode, each clamping module is composed of a positioning seat, an electric cylinder, a telescopic rod, a clamping plate and a plurality of plug pins, the length direction of the telescopic rod is parallel to the length direction of the lifting seat, and the electric cylinder can push the telescopic rod to stretch out and draw back in the axial direction; a horizontal bottom plate is arranged at the position, close to the inner side area, of the bottom of the lifting seat, the length direction of the bottom plate is perpendicular to the length direction of the telescopic rod, and a positioning clamping assembly is further arranged on the positioning seat and comprises two clamping positioning pieces capable of moving in the length direction of the bottom plate. The two clamping plates can automatically face the left end and the right end of the seamless steel tube set through the positioning function of the bottom plate and the positioning clamping assembly, so that the requirement for the precision of the placing position of each time of hoisting is not high, the hoisting efficiency can be obviously improved, and the transfer efficiency of the hoisting device is improved.

Description

Technical Field

[0001] This utility model relates to a transfer device, and more particularly to a heat treatment transfer device for seamless steel pipes. Background Technology

[0002] Seamless steel pipes are steel pipes formed by piercing a single round steel bar, with no weld seams on the surface. The production process of seamless steel pipes mainly includes the following steps: billet preparation, piercing, rolling, sizing and reducing, cooling, straightening, cutting, heat treatment, surface treatment, non-destructive testing, oiling, and packaging. Heat treatment involves annealing, normalizing, or quenching the steel pipe to improve its properties. A common heat treatment process for seamless steel pipes is fluidized bed quenching. After this quenching process, the seamless steel pipes are placed side-by-side on a feeding rack in a fluidized bed to cool naturally. These cooled seamless steel pipes need to be transferred to the surface treatment station using transfer equipment. Existing transfer equipment suffers from cumbersome loading and unloading, resulting in low overall transfer efficiency. Therefore, it is necessary to develop a transfer device with a large single-load capacity and high loading and unloading efficiency. Summary of the Invention

[0003] This invention provides a seamless steel pipe heat treatment transfer device, which solves the problem of low overall transfer efficiency caused by cumbersome loading and unloading in the prior art.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a seamless steel pipe heat treatment transfer device, including a lifting base and two sets of clamping modules arranged in mirror on the lifting base. The upper side of the lifting base is provided with at least two lifting lugs. The clamping module consists of a positioning base fixed on the lifting base, an electric cylinder provided on the positioning base, a telescopic rod horizontally slidably assembled relative to the positioning base, a clamping plate fixed to the inner end of the telescopic rod, and several pins fixed at equal intervals on the clamping plate. The length direction of the telescopic rod is parallel to the length direction of the lifting base, and the electric cylinder can push the telescopic rod to extend and retract axially. The bottom and inner area of ​​the lifting base are provided with a horizontal base plate. The length direction of the base plate is perpendicular to the length direction of the telescopic rod. The positioning base is also provided with a positioning clamping assembly, including two clamping positioning plates that can move along the length direction of the base plate.

[0005] This utility model is generally hoisted on a gantry crane, with the hoisting position being the lifting lug. This utility model is controlled manually or by an automated program, enabling it to be transferred between the fluidized bed and the surface treatment station. The loading and unloading process of this utility model is as follows: The gantry crane will transport the entire utility model above the seamless steel pipe assembly to be transported, and then slowly lower it until the left and right bottom plates are in contact with the upper surface of the seamless steel pipe assembly. At this time, the clamping plates and the seamless steel pipe assembly to be transported are positioned in the height direction. Then the positioning clamping assembly starts to move. The initial distance between the two clamping positioning plates is greater than the width of the seamless steel pipe assembly to be transported. As the two clamping positioning plates narrow, and finally close to the sides of the seamless steel pipe assembly, the two clamping plates and the seamless steel pipe assembly are also completely positioned in the horizontal width direction. The two clamping plates are directly opposite the left and right ends of the seamless steel pipe assembly, and each pin is directly opposite the inner hole of the seamless steel pipe. Then the electric cylinder starts to rotate, controlling the two telescopic rods to retract inward, so that the two clamping plates move closer to the left and right ends of the seamless steel pipe assembly until the pins are partially or completely inserted into the seamless steel pipe. At this time, the loading of the seamless steel pipe is completed, and the gantry crane can then transport this utility model. The unloading process is the reverse of the loading procedure.

[0006] Through the above technical solutions, the present invention does not require high precision in the placement position for each hoisting; it only needs to be roughly placed in the correct position. Then, through the positioning function of the base plate and the positioning clamping assembly, the two clamping plates can be automatically aligned with the left and right ends of the seamless steel pipe assembly. This can significantly improve the hoisting efficiency, thereby improving the transfer efficiency of the present invention. At the same time, the present invention can load multiple seamless steel pipes at one time, and its loading capacity is also excellent.

[0007] Furthermore, the lifting base has slots and several positioning holes on its two side walls along its length. The positioning base has two slidably fitted pieces on the slots, and positioning pins are inserted into the slids to engage with the positioning holes. When the positioning pins are removed, the positioning base can move laterally along the slots. By inserting the positioning pins into different positioning holes, the distance between the two positioning bases can be freely adjusted, thus allowing the invention to adapt to seamless steel pipes of different lengths.

[0008] Therefore, compared with the prior art, this utility model has the following characteristics: 1. Through the positioning function of the base plate and the positioning clamping assembly, the two clamping plates can be independently aligned with the left and right ends of the seamless steel pipe assembly, so that the positioning accuracy requirement of this utility model for each hoisting is not high, which can significantly improve the hoisting efficiency and thus improve the transfer efficiency of this utility model; 2. By inserting the positioning pin into different positioning holes, the distance between the two positioning seats of this utility model can be freely adjusted, so that this utility model can be adapted to seamless steel pipes of different lengths. Attached Figure Description

[0009] AppendixFigure 1 This is a schematic diagram of the structure of this utility model;

[0010] Appendix Figure 2 This is a bottom view of the clamping module;

[0011] Appendix Figure 3 This is a structural schematic diagram of the positioning and clamping assembly;

[0012] Appendix Figure 4 It is an assembly drawing of the lifting bracket and the positioning bracket. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] Example 1: See Figure 1 , Figure 2 and Figure 3A seamless steel pipe heat treatment transfer device includes a lifting base 100 and two sets of mirror-arranged clamping modules 200 mounted on the lifting base. The lifting base has two lifting lugs 101 on its upper side. Each clamping module consists of a positioning seat 210 fixed to the lifting base, an electric cylinder 220 mounted on the positioning seat, a telescopic rod 230 horizontally slidably mounted relative to the positioning seat, a clamping plate 240 fixed to the inner end of the telescopic rod, and 6 to 12 equally spaced pins 250 fixed to the clamping plate. The length direction of the telescopic rod is parallel to the length direction of the lifting base, and the electric cylinder can push the telescopic rod to extend and retract axially. A horizontal base plate 110 is provided at the bottom and inner area of ​​the lifting base, with its length direction perpendicular to the telescopic rod. Along the length direction, the positioning base is also provided with a positioning clamping assembly 300, including two clamping positioning plates 310 that can move along the length direction of the base plate, two side plates 320 fixed to the upper surface of the base plate, a bidirectional lead screw 330 horizontally rotated and assembled between the two side plates, a smooth rod 340 horizontally fixedly connected between the two side plates, and a servo motor 350 that drives the bidirectional lead screw to rotate. The bidirectional lead screw is provided with two sections of left-right mirror-distributed threads 331. The two clamping positioning plates are simultaneously assembled on the bidirectional lead screw and the smooth rod and are engaged with the threads. The clamping positioning plates are inverted "L" shape. The clamping positioning plates are provided with a lead screw nut 311 that engages with the bidirectional lead screw and a sliding sleeve 312 that engages with the smooth rod.

[0016] In this embodiment, the device is typically hoisted onto a gantry crane, with the hoisting position being the lifting lugs. The gantry crane is controlled manually or automatically, allowing the device to be transferred between the fluidized bed and the surface treatment station. The loading and unloading process is as follows: the gantry crane moves the entire device above the seamless steel pipe assembly 10 to be transported, and then slowly lowers it until the left and right bottom plates are in contact with the upper surface of the seamless steel pipe assembly. At this point, the clamping plates are positioned vertically with the seamless steel pipe assembly. Then, the positioning and clamping assembly begins to move. The servo motor drives the bidirectional lead screw to rotate, thereby narrowing the distance between the two clamping positioning plates. The initial distance between the two clamping positioning plates is greater than the width of the seamless steel pipe assembly to be transported. As the distance between the two clamping positioning plates narrows... Finally, the clamping plates are positioned close to both sides of the seamless steel pipe assembly. At this point, the two clamping plates and the seamless steel pipe assembly are fully positioned in the horizontal width direction. The two clamping plates are directly opposite the left and right ends of the seamless steel pipe assembly, and each pin is directly opposite the inner hole of the seamless steel pipe. Then, the electric cylinder starts to rotate, controlling the two telescopic rods to retract inward, so that the two clamping plates move closer to the left and right ends of the seamless steel pipe assembly until the pins are partially or completely inserted into the seamless steel pipe. At this point, the loading of the seamless steel pipe is completed, and the gantry crane can then transport the material in this embodiment. The unloading process is the reverse of the loading procedure.

[0017] Through the above technical solutions, this embodiment does not require high precision in the placement of each hoisting operation; it only needs to be roughly placed in the correct position. Then, through the positioning function of the base plate and the positioning clamping assembly, the two clamping plates can be automatically aligned with the left and right ends of the seamless steel pipe assembly. This can significantly improve the hoisting efficiency, thereby improving the transfer efficiency of this embodiment. At the same time, this embodiment can load multiple seamless steel pipes at once, and its loading capacity is also excellent.

[0018] See Figure 3 In this embodiment, a sensor base 360 ​​and a proximity sensor 361 are also installed on the upper surface of the base plate. The proximity sensor can monitor the position of the clamping positioning piece. When the clamping positioning piece is detected to be close, the servo motor stops working, and at this time the two clamping positioning pieces are clamped tightly with the seamless steel pipe assembly.

[0019] See Figure 4 The lifting seat has slots 120 and several positioning holes 130 on both sides along its length. Two slidable engaging plates 211 are provided on the positioning seat, and positioning pins 212 are inserted into the engaging plates for positioning with the positioning holes. When the positioning pins are removed, the positioning seat can move laterally along the slots. By inserting the positioning pins into different positioning holes, the distance between the two positioning seats in this embodiment can be freely adjusted, thus allowing this embodiment to adapt to seamless steel pipes of different lengths.

[0020] See Figure 2 The bottom of the positioning seat is also provided with four telescopic rod positioning seats 213. There are two telescopic rods, which slide through the two telescopic rod positioning seats at the same time. A connecting piece 231 is fixedly connected between the outer ends of the two telescopic rods. The telescopic rod of the electric cylinder is connected to the connecting piece.

[0021] See Figure 3 A plug-in seat 260 is fixedly connected between the inner ends of the two telescopic rods. The bottom of the plug-in seat is provided with a support part 261. Several vertical dovetail grooves 262 are provided on the side wall of the plug-in seat. The clamping plate is provided with plug-in blocks 241 that are adapted to the dovetail grooves, so that the clamping plate can be plugged into and fixed with the plug-in seat.

[0022] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A seamless steel pipe heat treatment transfer device, characterized by, The utility model provides a kind of lifting seat and two sets of mirror image setting clamping module arranged on the lifting seat, and the upper side of the lifting seat is provided with at least two lifting lugs, and the clamping module is composed of positioning seat fixed on the lifting seat, electric cylinder arranged on the positioning seat, telescopic rod horizontally slidingly assembled relative to the positioning seat, clamping plate fixed on the inner end of the telescopic rod and several equidistantly fixed on the clamping plate on the pin, the length direction of the telescopic rod is parallel to the length direction of the lifting seat, and the electric cylinder can push the telescopic rod axial telescopic;The bottom of the lifting seat and the inner side area are provided with horizontal bottom plate, and the length direction of the bottom plate is perpendicular to the length direction of the telescopic rod, and the positioning seat is further provided with positioning and clamping assembly, including two pieces of clamping positioning sheet movable along the length direction of the bottom plate.

2. The apparatus according to claim 1, wherein: The positioning and clamping assembly includes two side plates fixed on the upper surface of the bottom plate, a bidirectional screw rod horizontally rotatably assembled between the two side plates, a light rod horizontally fixedly connected between the two side plates and a servo motor driving the bidirectional screw rod to rotate, the bidirectional screw rod is provided with two sections of left and right mirror image distributed threads, the two clamping positioning sheets are simultaneously assembled on the bidirectional screw rod and the light rod, and cooperate with the threads, and the clamping positioning sheet is in inverted ''L'' type.

3. The apparatus according to claim 2, wherein: The upper surface of the bottom plate is further provided with sensor seat and proximity sensor.

4. The apparatus according to claim 1, wherein: The two side walls in the length direction of the lifting seat are provided with clamping groove and a plurality of positioning holes, the positioning seat is provided with two clamping pieces slidingly fitted in the clamping groove, and the clamping piece is inserted with a positioning pin which can be inserted and positioned with the positioning hole.

5. The apparatus according to claim 4, wherein: The bottom of the positioning seat is further provided with four telescopic rod positioning seats, the telescopic rod is provided with two, and simultaneously slidingly penetrates through two telescopic rod positioning seats, respectively, the outer ends of the two telescopic rods are fixedly connected with a connecting piece, and the telescopic rod of the electric cylinder is connected with the connecting piece.

6. The apparatus according to claim 5, wherein: The inner ends of the two telescopic rods are fixedly connected with an insertion seat, the bottom of the insertion seat is provided with a supporting part, the side wall of the insertion seat is provided with a plurality of vertical dovetail grooves, the clamping plate is provided with an insertion block matched with the dovetail groove, so that the clamping plate can be inserted and fixed with the insertion seat.

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