A multi-layered sequential overlay build-up apparatus for build-up of a roll body surface

Abstract

The application discloses a kind of multilayer orderly surfacing equipment for roller body surface surfacing, it is related to roller body surfacing field, it includes welding torch head, arc frame, welding surface processing component, cooling area extension plate, U-shaped frame, carrier plate, first oil cylinder, L-shaped plate, second oil cylinder and pole frame.In the application, the displacement X in the shortest cooling time is used to determine the spacing between the two welding torch heads, and the two welding torch heads are arranged in a staggered manner to complement the joint welding structure, which can quickly perform the next layer of surfacing on the completely cooled part in the shortest time during the previous layer of surfacing, and perform re-surfacing of different thicknesses on the gap between the surfacing tracks of the previous layer of surfacing.Two welding torch heads are moved back by at least two horizontal displacements, so that both welding torch heads are located on the cleaned and cooled roller body surface to be welded to perform new layer surfacing, achieving orderly surfacing effect, greatly shortening the surfacing time and improving the efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of roller body surfacing, in particular to a multi-layer ordered surfacing device for roller body surface surfacing. BACKGROUND

[0002] Submerged arc welding is a welding method that uses the heat generated by the electric arc to melt the welding wire and flux. It is performed using automatic or semi-automatic welding equipment that can advance in a predetermined direction to complete the welding operation. In the process of surfacing large-diameter, long rollers, existing surfacing equipment has a single surfacing method and slow surfacing speed. The surfacing site cools for a long time, so that the surfacing implementation structure cannot be positioned in the first cooled section to perform surfacing, resulting in a long overall completion time and low efficiency. Therefore, a multi-layer ordered surfacing device for roller body surface surfacing is proposed to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a multi-layer ordered surfacing device for roller body surface surfacing to solve the above problems.

[0004] The present application achieves the above-mentioned purpose through the following technical solutions. A multi-layer ordered surfacing device for roller body surface surfacing includes welding gun heads, arc frames, welding surface processing assemblies, cooling zone extension plates, U-shaped frames, carrier plates, first oil cylinders, L-shaped plates, second oil cylinders, and rod frames. Two welding gun heads are respectively installed on two welding seats, and the distance between the two welding gun heads is determined by the displacement X of the already surfaced roller body in the shortest cooling time. One welding seat is fixedly installed at the bottom end of the U-shaped frame, and the top end of the U-shaped frame is connected to the output end of the first oil cylinder. The other welding seat is fixedly installed at one end of the cooling zone extension plate, and the two first guides on the cooling zone extension plate are interactively connected to the same first slide on the bottom of the carrier plate.

[0005] The welding surface processing assembly includes sanding discs and needle brush discs. A set of sanding discs and a set of needle brush discs are fixedly installed on the bottom rod of the same rod frame through staggered distribution. The middle position of the rod at the top of the rod frame is fixedly connected to the output end of the second oil cylinder through a bolt. The cylinder end of the second oil cylinder is fixedly connected to the bottom end of the L-shaped plate.

[0006] Preferably, the edge sand surface of the sanding disc is located in the gap of the welding layer track.

[0007] Preferably, the needle brush part of the needle brush disc contacts the surface where the welding layer track is located.

[0008] Preferably, the U-shaped frame partially passes through the strip-shaped hole on the cooling zone extension plate, and the cylinder part of the first oil cylinder is fixedly connected to the corresponding part of the carrier plate.

[0009] Preferably, the top end of the L-shaped plate is fixedly connected to one side of the carrier plate, and the side surface of the L-shaped plate is installed with the second sliding seat alternately.

[0010] Preferably, the second sliding seat is slidably connected with the corresponding second guide rail, and the surface of the L-shaped plate between the two second sliding seats is installed with a lead screw connecting hole seat.

[0011] Preferably, the first sliding seat is distributed with a threaded hole, and each threaded hole is installed with a positioning bolt, and the bottom end surface of the positioning bolt is in tight contact with the surface of the first guide rail in the first sliding seat.

[0012] Preferably, x in the displacement X is a part that can be subjected to secondary surfacing after complete cooling within at least 30 minutes.

[0013] Preferably, the two welding torch heads pass through the blanking holes in the middle of the two arc-shaped frames, and each arc-shaped frame is extended with one end of a welding material guide pipe, and the surfacing movement track of one welding torch head and the surfacing movement track of the other welding torch head form a gap welding structure through staggering.

[0014] The beneficial effects of the present application are: the interval between the two welding torch heads is determined by the displacement X in the shortest cooling time, and the two welding torch heads are staggered and arranged in the gap welding structure, which can quickly perform the surfacing of the next layer on the completely cooled part in the shortest time during the surfacing of the previous layer, and simultaneously perform the secondary surfacing of different thicknesses on the track gap of the surfacing layer of the previous layer; both welding torch heads are moved back by at least two horizontal displacements, so that both welding torch heads are located on the cleaned and cooled to-be-welded roller surface to perform the surfacing of a new layer, achieving the effect of orderly surfacing, greatly shortening the surfacing time and improving the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative labor.

[0016] Figure 1 It is a schematic diagram of the position distribution between the overall structure of the present application and the to-be-welded roller.

[0017] Figure 2 It is a perspective view of the overall structure of the present application.

[0018] Figure 3 It is a schematic diagram of the welding torch head connecting structure of the present application.

[0019] Figure 4 For Figure 1 The front view in the running state of the middle structure;

[0020] Figure 5 For Figure 2 The front view of the middle structure;

[0021] Figure 6 For Figure 1 The front view in the running state of the middle structure.

[0022] In the figure: 1, welding seat; 110, welding gun head; 120, welding material guide pipe; 2, arc-shaped frame; 210, blanking hole; 3, welding surface processing assembly; 310, sand disc; 320, needle brush disc; 4, cooling area extension plate; 410, strip-shaped hole; 420, first guide rail; 5, U-shaped frame; 6, carrier plate; 7, first sliding seat; 710, positioning bolt; 8, first oil cylinder; 9, L-shaped plate; 910, second guide rail; 920, second sliding seat; 930, screw connecting hole seat; 10, second oil cylinder; 11, rod frame; 12, to-be-welded roller body; 13, welding layer track. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The technical solutions of the present application will be further described below in combination with the drawings and through specific embodiments.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Please refer to Figures 1-6As shown, a multilayer ordered surfacing device for roller body surface surfacing includes a welding gun head 110, an arc-shaped frame 2, a welding surface treatment assembly 3, a cooling area extension plate 4, a U-shaped frame 5, a carrier plate 6, a first oil cylinder 8, an L-shaped plate 9, a second oil cylinder 10, and a rod frame 11. Two welding gun heads 110 are respectively installed on two welding seats 1, and the spacing between the two welding gun heads 110 is determined by the displacement X of the already surfacing surface on the roller body within the shortest cooling time. One welding seat 1 is fixedly installed at the bottom end of the U-shaped frame 5, and the top end of the U-shaped frame 5 is connected to the output end of the first oil cylinder 8. The other welding seat 1 is fixedly installed at one end of the cooling area extension plate 4, and two first guide rails 420 located on the cooling area extension plate 4 are interactively connected with the same first sliding seat 7 located at the bottom of the carrier plate 6.

[0027] Two welding gun heads 110 respectively pass through the blanking hole 210 located in the middle of the two arc-shaped frames 2, and one end of the welding material guide pipe 120 is inserted into each arc-shaped frame 2. The surfacing movement track of one welding gun head 110 and the surfacing movement track of the other welding gun head 110 form a gap welding structure through misalignment. The x in the displacement X is the part that can be implemented for secondary surfacing after complete cooling within at least 30 min. Since the roller body surface surfacing is different from the linear welding of metal plates, the surfacing track of the roller body surface is spiral, and the adjacent spacing between the already surfaced spiral part and the part being implemented in the running welding is small, which causes the cooling speed of the already surfaced spiral part to be affected by the high-temperature heat environment of the part being implemented in the running welding. At the same time, the large diameter and long roller body has a slow surfacing speed for each circle, which causes the cooling level area of the implemented welding to be extremely small, i.e., the displacement X is extremely small, so that the time required to reach the shortest implementable horizontal displacement X (cooling level area) is at least 30 min. Therefore, the horizontal displacement X (cooling level area) of one welding gun head 110 within 30 min is used as the spacing distance for position adjustment of the other welding gun head 110, so as to ensure that the other welding gun head 110 enters the part that can be implemented for secondary surfacing after complete cooling. In addition, the welding slag can be cleaned away within the x range of the displacement X by using the welding surface treatment assembly 3, so as to avoid the mixing of residues in the secondary surfacing layer welding and the implementation of repeated heating surfacing in the short time and short distance range of incomplete cooling or low-temperature parts, which causes the grain size of the welding heat affected zone to be coarse and the joint toughness to be reduced, thereby improving the welding connection strength between the surfacing layers.

[0028] When the other welding torch head 110 moves to the part where the second cladding can be implemented, that is, in the gap of the cladding track 13, due to the increase of the first layer cladding thickness, at this time the other welding torch head 110 is higher than the first welding torch head 110, and the cladding moving track of one of the welding torch heads 110 and the cladding moving track of the other welding torch head 110 are offset to form a gap cladding structure, so that the gap between the cladding tracks 13 of the last layer can be cladded again with different thicknesses;

[0029] When one of the welding torch heads 110 moves out of the horizontal displacement X from the other end of the to-be-welded roller body 12, and the other welding torch head 110 is located at the other end of the to-be-welded roller body 12, both welding torch heads 110 are at the same cladding height through the external lifting machine, and both welding torch heads 110 are moved back by at least two horizontal displacement X, so that both welding torch heads 110 are located on the cleaned and cooled surface of the to-be-welded roller body 12 to implement the cladding of the new layer.

[0030] The welding surface treatment assembly 3 includes a sand disc 310 and a needle brush disc 320, a set of sand discs 310 and a set of needle brush discs 320 are fixedly installed on the bottom rod body of the same rod holder 11 through staggered distribution, and are fixedly connected with each other through bolts between the middle position of the rod body at the top of the rod holder 11 and the output end of the second oil cylinder 10. The cylinder end of the second oil cylinder 10 is fixedly connected with the bottom end of the L-shaped plate 9. The edge sand surface part of the sand disc 310 is located in the gap of the cladding track 13, and the needle brush part of the needle brush disc 320 is in contact with the surface where the cladding track 13 is located.

[0031] The sand disc 310 in the welding surface treatment assembly 3 between the two welding torch heads 110 is placed in the cladding gap, and the needle brush of the needle brush disc 320 is in contact with the surface where the cladding is completed, and under the action of the rotation of the to-be-welded roller body 12 and the traction force for the horizontal movement of the welding torch head 110, the welding slag and the gap between the welds can be cleaned for the next cladding.

[0032] The U-shaped holder 5 partially penetrates the strip-shaped hole 410 on the cooling area extension plate 4. The cylinder body of the first oil cylinder 8 is fixedly connected with the corresponding part of the carrier plate 6. The top end of the L-shaped plate 9 is fixedly connected with one side of the carrier plate 6, and the second sliding seat 920 is installed on the side surface of the L-shaped plate 9 in an upper and lower staggered manner.

[0033] The second sliding seat 920 is slidably connected with the corresponding second guide rail 910, and the screw rod connecting hole seat 930 is installed on the surface of the L-shaped plate 9 between the two second sliding seats 920. Through the screw rod connecting hole seat 930, the external screw rod driving moving device can be connected to achieve the effect of horizontal movement.

[0034] The first sliding seat 7 is provided with screw holes, and a positioning bolt 710 is arranged in each screw hole. The bottom end surface of the positioning bolt 710 is in close contact with the surface of the first guide rail 420 in the first sliding seat 7, so as to fix the cooling area extension plate 4 after displacement adjustment.

[0035] Working principle: combined with Figure 5 and Figure 6 As shown in the drawings, under the conditions of large diameter, long roller body, slow surfacing speed, and the minimum complete cooling time of the surfacing position being 30 min+ , , the horizontal displacement amount X (cooling horizontal area) of one welding torch head 110 within 30 min is taken as the distance for position adjustment of the other welding torch head 110, so as to ensure that the other welding torch head 110 enters the part that can be subjected to secondary surfacing after complete cooling. The specific operation is as follows:

[0036] combined with Figure 1 , Figure 4 and Figure 6 As shown in the drawings, the sand disc 310 in the welding surface processing assembly 3 between the two welding torch heads 110 is placed in the surfacing gap, and the needle brush of the needle brush disc 320 contacts the surface that has been surfaced, so as to clean the welding slag and the seam gap under the action of the rotation of the to-be-welded roller body 12 and the traction force for the horizontal movement of the welding torch head 110, so as to facilitate the next surfacing.

[0037] When the other welding torch head 110 moves to the part that can be subjected to secondary surfacing after complete cooling, i.e., the gap in the welding layer track 13, the first layer surfacing thickness is increased, so that the position of the other welding torch head 110 is higher than that of the first welding torch head 110 at this time. The gap in the welding layer track 13 of the previous layer is subjected to re-surfacing with different thicknesses by the offset between the surfacing movement track of one welding torch head 110 and the surfacing movement track of the other welding torch head 110, so as to form a complementary welding structure.

[0038] When one welding torch head 110 of the previous layer moves out by the horizontal displacement amount X from the other end of the to-be-welded roller body 12, and the other welding torch head 110 is located at the other end of the to-be-welded roller body 12, both welding torch heads 110 are moved back by at least two horizontal displacement amounts X, so that both welding torch heads 110 are located on the cleaned and cooled surface of the to-be-welded roller body 12 to perform surfacing of a new layer.

[0039] In summary, the interval between the two welding torch heads 110 is determined by the displacement X in the shortest cooling time, and the two welding torch heads 110 are arranged in staggered distribution to complement the welding structure. The next layer of surfacing can be quickly performed on the completely cooled part in the shortest time during the previous layer of surfacing, and the gap between the welding layers 13 of the previous layer of surfacing can be re-surfaced with different thicknesses. Both welding torch heads 110 are moved back by at least two horizontal displacements X, so that both welding torch heads 110 are located on the cleaned and cooled surface of the to-be-welded roller body 12 to perform surfacing of the new layer, achieving the effect of orderly surfacing, greatly shortening the surfacing time and improving the efficiency.

[0040] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the essential elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0041] The above-described embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the present application; even though the present application has been described in detail with reference to the foregoing embodiments, those ordinarily skilled in the art should understand: the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layered sequential overlay build-up apparatus for build-up of a roll body surface, characterized by: The utility model relates to a welding head (110), arc frame (2), welding surface processing assembly (3), cooling area extension plate (4), U-shaped frame (5), carrier plate (6) and first oil cylinder (8), two welding head (110) are installed on two welding seat (1) respectively, and the interval between two welding head (110) is determined through the displacement X of the already surfacing surface on the roller body in the shortest cooling time, one welding seat (1) is fixedly installed at the bottom end of U-shaped frame (5), and the top end of U-shaped frame (5) is connected with the output end of first oil cylinder (8), another welding seat (1) is fixedly installed at one end of cooling area extension plate (4), and two first guide rails (420) on cooling area extension plate (4) are interactively connected with the same first sliding seat (7) connected with the bottom of carrier plate (6), the cylinder part of first oil cylinder (8) is fixedly connected with the corresponding part of carrier plate (6), two welding head (110) respectively pass through the blanking hole (210) in the middle of two arc frame (2), and one end of welding material guide pipe (120) is inserted into each arc frame (2), and the surfacing movement track of one welding head (110) and the surfacing movement track of another welding head (110) form a gap welding structure through dislocation. The welding surface processing assembly (3) includes a sand disc (310) and a needle brush disc (320), a group of sand discs (310) and a group of needle brush discs (320) are fixedly installed on the bottom rod body of the same rod frame (11) through staggered distribution, the middle position of the rod body at the top of the rod frame (11) and the output end of the second oil cylinder (10) are fixedly connected through bolts, the cylinder end of the second oil cylinder (10) and the bottom end of the L-shaped plate (9) are fixedly connected, and the edge sand surface part of the sand disc (310) is located in the gap of the welding layer track (13). The top end of the L-shaped plate (9) and one side of the carrier plate (6) are fixedly connected, second sliding seats (920) are installed on the side surface of the L-shaped plate (9) alternately, the second sliding seat (920) and the corresponding second guide rail (910) are slidably connected, and a lead screw connecting hole seat (930) is installed on the surface of the L-shaped plate (9) between the two second sliding seats (920).

2. A multi-layered sequential overlay build-up apparatus for build-up of surfaces of roller bodies according to claim 1, characterized in that: The needle brush part of the needle brush disc (320) contacts the surface where the welding layer track (13) is located.

3. A multi-layered sequential overlay cladding apparatus for cladding the surface of a roll body as defined in claim 1 wherein: The first sliding seat (7) is provided with screw holes, and a positioning bolt (710) is installed in each screw hole, and the bottom end surface of the positioning bolt (710) and the surface of the first guide rail (420) in the first sliding seat (7) are in tight contact.

4. A multi-layered sequential overlay build-up apparatus for build-up of surfaces of roll bodies as claimed in claim 1, wherein: In the displacement X, x is at least 30 min.

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