Double-station vehicle-mounted pipe blank laser head and tail double-centering device and centering method

Abstract

The invention discloses a double-station vehicle-mounted pipe blank laser head and tail double-centering device and a centering method.The double-station vehicle-mounted pipe blank laser head and tail double-centering device comprises a conveying roller, two sets of transferring assemblies, a material stirring assembly, a centering assembly and a puncher inlet table, and the two sets of transferring assemblies are arranged between the conveying roller and the puncher inlet table; the conveying assembly is used for alternately conveying pipe blanks to an inlet table of a perforating machine, the shifting assemblies are arranged in the middles of the upper end and the lower end of the conveying assembly and used for loading and unloading the pipe blanks, and the centering assemblies are arranged at the left end and the right end of the conveying assembly and used for detecting the center points of the two ends of the pipe blanks and punching centering holes. The punching quality and the uniformity of the wall thickness of the steel pipe are improved, and the probability of rolling jamming accidents is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of tube blank centering, and in particular relates to a double-station vehicle-mounted tube blank laser head-tail double centering device and a centering method. Background Art

[0002] At present, when rolling tube billets, in order to ensure the wall thickness quality of the rolled steel tube, a centering process is generally performed before piercing.

[0003] In the prior art, there are two methods for centering the tube blank: cold centering and hot centering. Cold centering is generally performed by drilling holes on a special centering lathe. The cold centering device has high centering quality, but relatively large investment and high energy consumption. The hot centering equipment is arranged on the process flow line, and generally a hydraulic plug is used to center the tube blank. However, the hydraulic type requires a long centering time, resulting in a large temperature drop in the tube blank, thereby affecting the start rolling temperature of the subsequent perforated rough tube, thereby increasing the rolling force and the consumption of tools and dies. Summary of the invention

[0004] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the present invention provides a double-station vehicle-mounted tube blank laser head and tail double centering device and a centering method.

[0005] The double-station vehicle-mounted tube blank laser head-tail double centering device of the present invention comprises a conveying roller, two groups of transfer assemblies, a material shifting assembly, a centering assembly and a punching machine entrance platform, wherein the two groups of the transfer assemblies are arranged between the conveying roller and the punching machine entrance platform, and are used to alternately convey the tube blanks to the punching machine entrance platform, the material shifting assembly is arranged in the middle of the upper and lower ends of the transfer assembly, and is used to load and unload the tube blanks, and the centering assembly is arranged at the left and right ends of the transfer assembly, and is used to detect the center points of the two ends of the tube blank and punch the centering holes, wherein:

[0006] The transfer assembly includes a transfer vehicle, a transfer vehicle driving device and a transfer vehicle track. The transfer vehicle track is symmetrically arranged between the conveying roller and the punching machine entrance platform. The transfer vehicle can be movably arranged on the transfer vehicle track. The transfer vehicle driving device is arranged in the middle of the transfer vehicle to provide driving force for the transfer vehicle.

[0007] Furthermore, in the above-mentioned double-station vehicle-mounted tube blank laser head and tail double centering device, the material shifting assembly includes a first material shifting plate and a second material shifting plate, the first material shifting plate is arranged at the top of the transfer vehicle track and is parallel to the conveying roller, and the second material shifting plate is arranged at the bottom of the transfer vehicle track and is parallel to the punching machine entrance platform.

[0008] Furthermore, in the above-mentioned double-station vehicle-mounted tube blank laser head and tail dual centering device, the centering assembly includes a head centering device and a tail centering device, and the head centering device and the tail centering device are symmetrically arranged at the left and right ends of the transfer vehicle.

[0009] Furthermore, in the above-mentioned double-station vehicle-mounted tube blank laser head and tail double centering device, the left and right ends of the transfer vehicle are conventionally through structures, and the centers of the head centering device and the tail centering device are coaxial.

[0010] The centering method of the present invention comprises:

[0011] After the tube billet is heated in the heating furnace and qualified, it is transported to one of the transfer components by the conveyor roller. After the transfer car is in place, the first material-dispensing plate will transfer the tube billet to the transfer car. The transfer car driving device drives the transfer car to move along the transfer car track to transport the tube billet to the entrance platform of the punching machine. While transporting, the transfer car fixes the tube billet. At this time, after the centering component detects the incoming material signal, the centering component reaches the ready state, finds the center according to the incoming material size, and the head centering device and the tail centering device simultaneously emit lasers to punch holes at the head and tail of the tube billet. The second material-dispensing plate will transfer the tube billet from the transfer car to the entrance platform of the punching machine, and then quickly return to the first material-dispensing plate to wait for material reception. At the same time, the conveyor roller transports the tube billet to another group of transfer components, repeats the above process, and transfers the tube billet to the entrance platform of the punching machine.

[0012] The dual-station vehicle-mounted tube blank laser head-tail dual centering device and centering method of the present invention have the following advantages and beneficial effects:

[0013] The invention has a simple structure and low cost, can realize the double-station alternate transfer of pipe blanks, reduce the material waiting time of the piercing machine, improve production efficiency, adopt head and tail double centering to ensure the stability of piercing, improve the piercing quality and the uniformity of steel pipe wall thickness, and reduce the probability of rolling accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 It is a structural schematic diagram of the double-station vehicle-mounted tube blank laser head and tail double centering device of the present invention.

[0016] Description of reference numerals:

[0017] 1: conveyor roller;

[0018] 2: transfer assembly, 21: transfer vehicle, 22: transfer vehicle driving device, 23: transfer vehicle track;

[0019] 3: material shifting assembly, 31: first material shifting plate, 32: second material shifting plate;

[0020] 4: centering assembly, 41: head centering device, 42: tail centering device;

[0021] 5: Punching machine entrance station. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, the double-station vehicle-mounted tube blank laser head-tail double centering device of the present invention comprises a conveying roller 1, two groups of transfer assemblies 2, a material shifting assembly 3, a centering assembly 4 and a punching machine entrance table 5, the two groups of transfer assemblies 2 are arranged between the conveying roller 1 and the punching machine entrance table 5, and are used to alternately convey the tube blanks to the punching machine entrance table 5, the material shifting assembly 3 is arranged in the middle of the upper and lower ends of the transfer assembly 2, and is used to load and unload the tube blanks, and the centering assembly 4 is arranged at the left and right ends of the transfer assembly 2, and is used to detect the center points of the two ends of the tube blank and punch the centering holes, wherein:

[0024] The transfer assembly 2 includes a transfer vehicle 21, a transfer vehicle driving device 22 and a transfer vehicle track 23. The transfer vehicle track 23 is symmetrically arranged between the conveying roller 1 and the punching machine entrance platform 5. The transfer vehicle 21 is movably arranged on the transfer vehicle track 23. The transfer vehicle driving device 22 is arranged in the middle of the transfer vehicle 21 to provide driving force for the transfer vehicle 21, so that the transfer vehicle 21 is driven by the transfer vehicle driving device 22 to move on the transfer vehicle track 23, and travel back and forth between the conveying roller 1 and the punching machine entrance platform 5 to continuously provide pipe blanks to the punching machine entrance platform 5.

[0025] Further, in the double-station vehicle-mounted tube blank laser head-tail double centering device of the present invention, the material-dividing assembly 3 includes a first material-dividing plate 31 and a second material-dividing plate 32, the first material-dividing plate 31 is arranged at the top of the transfer vehicle track 23 and is parallel to the conveying roller 1, and the second material-dividing plate 32 is arranged at the bottom of the transfer vehicle track 23 and is parallel to the punching machine entrance table 5, wherein the first material-dividing plate 31 and the second material-dividing plate 32 are both rotating cross-shaped structures, so that when the first material-dividing plate 31 rotates, the tube blank conveyed on the conveying roller 1 is dialed into the transfer vehicle 21, and when the second material-dividing plate 32 rotates, the tube blank in the transfer vehicle 21 is dialed into the punching machine entrance table 5;

[0026] The first material-diverting plate 31 and the second material-diverting plate 32 can be structures such as flaps, star wheels or material-diverting hooks.

[0027] Furthermore, in the double-station vehicle-mounted tube blank laser head and tail dual centering device of the present invention, the centering assembly 4 includes a head centering device 41 and a tail centering device 42, and the head centering device 41 and the tail centering device 42 are symmetrically arranged at the left and right ends of the transfer vehicle 21, and the head centering device 41 and the tail centering device 42 can be adjusted according to the length of the tube blank, wherein the head centering device 41 and the tail centering device 42 are both laser generating devices, and the size of the tube blank is measured by laser during centering, and the center point of the tube blank is determined, and the laser is emitted to punch the center point at the same time, thereby effectively improving the perforation stability of the tube blank, improving the uniformity of the wall thickness of the end of the tube blank, and improving the yield rate.

[0028] Furthermore, in the double-station vehicle-mounted tube blank laser head and tail double centering device of the present invention, the left and right ends of the transfer vehicle 21 are conventionally through structures, and the centers of the head centering device 41 and the tail centering device 42 are coaxial, so that after the tube blank enters the transfer vehicle 21, the two ends of the tube blank are centered at the same time during the movement of the tube blank, effectively avoiding the tube blank cooling caused by the excessively long centering operation;

[0029] A fixing device is also provided in the middle of the transfer vehicle 21 . When the tube blank enters the transfer vehicle 21 , the fixing device is self-locked to fix the tube blank. When the second material-moving plate 32 touches the fixing device, the fixing device is unlocked.

[0030] The centering method implemented by the dual-station vehicle-mounted tube blank laser head-tail dual centering device of the present invention comprises:

[0031] After the tube blank is heated in the heating furnace and qualified, it is transported to one of the transfer components 2 by the conveyor roller 1. After the transfer vehicle 21 is in place, the first material-selecting plate 31 selects the tube blank into the transfer vehicle 21, and the transfer vehicle driving device 22 drives the transfer vehicle 21 to move along the transfer vehicle track 23 to transport the tube blank to the punching machine entrance platform 5. While transporting, the transfer vehicle 21 fixes the tube blank. At this time, after the centering component 4 detects the incoming material signal, the centering component 4 reaches the ready state, finds the center according to the incoming material size, and the head centering device 41 and the tail centering device 42 simultaneously emit lasers to punch holes at the head and tail of the tube blank. The second material-selecting plate 32 selects the tube blank from the transfer vehicle 21 to the punching machine entrance platform 5, and then quickly returns to the first material-selecting plate 31 to wait for material reception. At the same time, the conveyor roller 1 transports the tube blank to another group of transfer components 2, repeats the above process, and transfers the tube blank to the punching machine entrance platform 5, so that the two groups of transfer components 2 alternately transfer the tube blanks, which effectively improves the work efficiency.

[0032] In summary, compared with the prior art, the dual-station vehicle-mounted tube blank laser head-tail dual centering device and centering method of the present invention have the following advantages and beneficial effects:

[0033] The present invention has a simple structure and low cost. Through the arrangement of two groups of transfer components, double-station alternate transfer of tube blanks can be realized, thereby reducing the waiting time of the punching machine and improving production efficiency. The head and tail double centering is adopted to ensure the stability of punching, improve the punching quality and uniformity of the wall thickness of the steel pipe, reduce the probability of rolling and jamming accidents, complete the centering of the tube blank while the tube blank is moving, and reduce the cooling of the tube blank.

[0034] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-station vehicle-mounted tube blank laser head and tail double centering device, characterized in that: The double-station vehicle-mounted tube blank laser head and tail double centering device comprises a conveying roller, two groups of transfer components, a material shifting component, a centering component and a punching machine entrance platform. The two groups of the transfer components are arranged between the conveying roller and the punching machine entrance platform, and are used to alternately convey the tube blank to the punching machine entrance platform. The material shifting component is arranged in the middle of the upper and lower ends of the transfer component, and is used to load and unload the tube blank. The centering component is arranged at the left and right ends of the transfer component, and is used to detect the center points of the two ends of the tube blank and punch the centering hole, wherein: The transfer assembly includes a transfer vehicle, a transfer vehicle driving device and a transfer vehicle track. The transfer vehicle track is symmetrically arranged between the conveying roller and the punching machine entrance platform. The transfer vehicle can be movably arranged on the transfer vehicle track. The transfer vehicle driving device is arranged in the middle of the transfer vehicle to provide driving force for the transfer vehicle.

2. The double-station vehicle-mounted tube blank laser head-tail double centering device according to claim 1 is characterized in that: The material stripping assembly includes a first material stripping plate and a second material stripping plate. The first material stripping plate is arranged at the top of the transfer vehicle track and is parallel to the conveying roller. The second material stripping plate is arranged at the bottom of the transfer vehicle track and is parallel to the punching machine entrance platform.

3. The double-station vehicle-mounted tube blank laser head and tail double centering device according to claim 1 is characterized in that: The centering assembly comprises a head centering device and a tail centering device, and the head centering device and the tail centering device are symmetrically arranged at the left and right ends of the transfer vehicle.

4. The double-station vehicle-mounted tube blank laser head-tail double centering device according to claim 3 is characterized in that: The left and right ends of the transfer vehicle are conventional through structures, and the centers of the head centering device and the tail centering device are coaxial.

5. A centering method using the double-station vehicle-mounted tube blank laser head-to-tail dual centering device according to any one of claims 1 to 4, characterized in that: The centering method includes: After the tube billet is heated in the heating furnace and qualified, it is transported to one of the transfer components by the conveyor roller. After the transfer car is in place, the first material-dispensing plate will transfer the tube billet to the transfer car. The transfer car driving device drives the transfer car to move along the transfer car track to transport the tube billet to the entrance platform of the punching machine. While transporting, the transfer car fixes the tube billet. At this time, after the centering component detects the incoming material signal, the centering component reaches the ready state, finds the center according to the incoming material size, and the head centering device and the tail centering device simultaneously emit lasers to punch holes at the head and tail of the tube billet. The second material-dispensing plate will transfer the tube billet from the transfer car to the entrance platform of the punching machine, and then quickly return to the first material-dispensing plate to wait for material reception. At the same time, the conveyor roller transports the tube billet to another group of transfer components, repeats the above process, and transfers the tube billet to the entrance platform of the punching machine.

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