Shield segment steel reinforcement cage welding mould, welding production line and welding method

Abstract

The application belongs to the technical field of steel bar cage processing, and discloses a shield segment steel bar cage welding die, a welding production line and a welding method. The welding die comprises a base, a single-mesh positioning mechanism and a stirrup positioning mechanism. The single-mesh positioning mechanism is installed on the base to support and position the single mesh constituting the steel bar cage. The stirrup positioning mechanism comprises a first positioning assembly and a second positioning assembly. Two groups of the first positioning assembly are provided, and the two groups of the first positioning assembly are symmetrically arranged on opposite sides of the base to position the inner side and the outer side of the stirrup constituting the steel bar cage. The second positioning assembly is installed on the base and can apply pressure to each stirrup to keep each stirrup flush in height. The provision of the second positioning assembly increases the positioning accuracy of the steel bar cage and improves the welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reinforcing cage processing, and particularly to a shield segment reinforcing cage welding die, a welding production line and a welding method. BACKGROUND

[0002] The shield segment reinforcing cage comprises a plurality of single nets and a plurality of stirrups. The plurality of single nets are arranged in parallel and at intervals. The stirrups are arranged in parallel and at intervals around the outer periphery of the plurality of single nets. After the stirrups are welded with the single nets, the shield segment reinforcing cage is formed.

[0003] During the welding of the stirrups with the single nets, attention should be paid to keeping the abutment of the stirrups with the single nets, so as to facilitate the welding operation. For example, the present applicant proposes a shield segment reinforcing cage three-dimensional forming welding production line and a welding method in CN114425672A. The welding production line is provided with a first positioning assembly for positioning the end of the single net, a second positioning assembly for positioning the inner arc side and the outer arc side of the single net, a third positioning assembly and a fourth positioning assembly for positioning the inner side and the outer side of the stirrup on the single net, and a stirrup positioning assembly for limiting the distance between the stirrups. The above-mentioned positioning assemblies can respectively position the stirrups and the single nets to fix the relative position between the stirrups and the single nets, thereby improving the efficiency of the welding of the stirrups with the single nets.

[0004] However, the stirrups used for the shield segment reinforcing cage are generally rectangular stirrups. In order to enable the two sides of the stirrup to abut with the single net to form a welding point, the difference between the width of the stirrup and the width of the single net needs to be within a certain range. The plurality of stirrups placed outside the single net are likely to be affected by the single net and have inconsistent heights, thereby affecting the welding of the stirrups with the single net. SUMMARY

[0005] One of the purposes of the present application is to provide a shield segment reinforcing cage welding die assembly which can limit the height of the stirrups constituting the reinforcing cage and facilitate the welding between the stirrups and the single net.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The shield segment reinforcing cage welding die comprises a base, a single net positioning mechanism and a stirrup positioning mechanism. The single net positioning mechanism is installed on the base to support and position the single net constituting the reinforcing cage. The stirrup positioning mechanism comprises a first positioning assembly and a second positioning assembly. Two groups of the first positioning assembly are symmetrically arranged on the opposite sides of the base to position the inner side and the outer side of the stirrup constituting the reinforcing cage. The second positioning assembly is installed on the base and can apply pressure to each stirrup to keep the stirrups flush in height.

[0008] As preferred, the first positioning assembly comprises a positioning support, positioning clamping plates and first driving members, the first driving members are arranged in plurality on the positioning support, the first driving members can extend to the inside of the positioning support, the positioning clamping plates are arranged in one-to-one correspondence on the output ends of the first driving members, and the positioning clamping plates are provided with positioning clamping grooves in V shape.

[0009] As preferred, the positioning support comprises a stand and mounting plates, the mounting plates are arranged in two layers on the stand, the first driving members are mounted on the two layers of mounting plates and correspond to the two layers of mounting plates in one-to-one correspondence.

[0010] As preferred, the second positioning assembly comprises a pressing support, pressing blocks, pressing shafts and second driving members, the pressing support is mounted on the base, the second driving members are mounted on the pressing support, the pressing blocks are mounted on the output ends of the second driving members, the pressing shafts are arranged on the pressing blocks, and the second driving members can drive the pressing blocks to press down so that the pressing shafts abut against the single nets.

[0011] As preferred, the pressing blocks and the pressing shafts are detachably connected.

[0012] As preferred, the pressing blocks are provided with through holes for the pressing shafts to insert, and the pressing shafts pass through the pressing blocks at both ends.

[0013] As preferred, the second driving members are air cylinders, and the pressing blocks are arranged in plurality in the through holes in the vertical direction.

[0014] As preferred, the stirrup positioning mechanism further comprises fifth driving members, and the fifth driving members can drive the positioning support to move close to or away from the base.

[0015] Another object of the present application is to provide a welding production line, which comprises welding robots and the shield segment steel reinforcement cage welding mold according to any one of the above, the number of the welding robots is two, and the welding robots are arranged outside the two groups of first positioning assemblies respectively.

[0016] Still another object of the present application is to provide a welding method for welding a steel reinforcement cage by using the welding production line, which comprises the following steps:

[0017] A plurality of single nets are sequentially stacked on the single net positioning mechanism from bottom to top;

[0018] The stirrups are manually stacked outside the single nets;

[0019] The first positioning assembly is used to position the stirrups;

[0020] The second positioning assembly is used to position the stirrups;

[0021] The welding robot welds the lap joints of the stirrups and the single-piece net to form a finished steel reinforcement cage.

[0022] The shield segment steel reinforcement three-dimensional net welding mold in the application supports and positions the single-piece net by using a single-piece net positioning mechanism, and positions the stirrup by using a stirrup positioning mechanism, wherein the stirrup positioning mechanism comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is capable of positioning the inner side and the outer side of the stirrup, so that the inner side and the outer side of the stirrup abut against the inner arc side and the outer arc side of the single-piece net respectively, and the second positioning assembly is capable of positioning the height of the stirrup, so that the stirrup is aligned; and the welding production line comprising the shield segment steel reinforcement cage welding mold and the welding method for welding the steel reinforcement cage by using the welding production line can realize the automation of the steel reinforcement cage welding, is accurate in positioning, and is high in welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a three-dimensional structure schematic diagram of the welding production line in the embodiment of the application;

[0024] Figure 2 is a three-dimensional structure schematic diagram of the shield segment steel reinforcement three-dimensional net welding mold in the welding area in the embodiment of the application;

[0025] Figure 3 is a side view of Figure 2 ;

[0026] Figure 4 is a structure schematic diagram of the third positioning assembly in the embodiment of the application;

[0027] Figure 5 is an enlarged schematic diagram of B in Figure 4 ;

[0028] Figure 6 is a structure schematic diagram of the fourth positioning assembly in the embodiment of the application;

[0029] Figure 7 is an enlarged structure schematic diagram of C in Figure 6 ;

[0030] Figure 8 is a structure schematic diagram of the first positioning assembly in the embodiment of the application;

[0031] Figure 9 is an enlarged structure schematic diagram of D in Figure 8 ;

[0032] Figure 10 is a structure schematic diagram of the second positioning assembly;

[0033] Figure 11 is a three-dimensional structure schematic diagram of the steel reinforcement cage.

[0034] In the drawings:

[0035] 10, base;

[0036] 20, first positioning assembly; 21, positioning support; 211, stand; 212, mounting plate; 22, positioning clamping plate; 221, positioning clamping groove; 222, reinforcing rib; 23, first driving member; 24, fifth driving member;

[0037] 30, second positioning assembly; 31, pressing support; 32, pressing block; 33, pressing shaft; 34, second driving member;

[0038] 40, third positioning assembly; 41, end head bracket; 42, supporting plate; 43, third driving member; 44, driving member connecting seat;

[0039] 50, fourth positioning assembly; 51, intermediate bracket; 52, telescopic shaft; 53, fourth driving member;

[0040] 60, welding robot; 61, robot body; 62, base;

[0041] 70, guiding assembly; 71, guide rail; 72, roller;

[0042] 80, reinforcement cage; 81, single piece net; 82, stirrup;

[0043] 90, conveying mechanism; 91, supporting plate; 92, driving conveying roller; 93, driven conveying roller; 94, sixth driving member. DETAILED DESCRIPTION

[0044] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of description, only the parts related to the application are shown in the drawings rather than all the parts.

[0045] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0047] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0048] As shown in Figure 11 The shield segment steel reinforcement cage 80 includes a plurality of arc-shaped single mesh 81 and a plurality of stirrups 82, wherein the plurality of single mesh 81 are arranged in parallel and spaced apart, the stirrup 82 is an open rectangular stirrup 82, the stirrup 82 is sleeved on the outer periphery of the single mesh 81 and is arranged perpendicularly to the single mesh 81, and the single mesh 81 and the stirrup 82 are welded to form the shield segment steel reinforcement cage 80.

[0049] In order to position the single mesh 81 and the stirrup 82 when welding the single mesh 81 and the stirrup 82, the present application provides a shield segment steel reinforcement cage welding die and a welding production line, Figures 1-10As shown is a welding production line in one of the embodiments of the present application, the welding production line comprises a shield segment steel reinforcement cage welding mold and two welding robots 60 arranged on opposite sides of the shield segment steel reinforcement cage welding mold. The shield segment steel reinforcement cage welding mold comprises a base 10, a single sheet net positioning mechanism and a stirrup positioning mechanism. The base 10 is in the shape of a circular arc consistent with the curvature of the single sheet net 81. The single sheet net positioning mechanism is installed on the base 10 and serves to support the single sheet net 81. A plurality of single sheet nets 81 are arranged in parallel and at intervals on the base 10 under the action of the single sheet net positioning mechanism. The stirrup positioning mechanism comprises a first positioning assembly 20 and a second positioning assembly 30. Two groups of the first positioning assembly 20 are symmetrically arranged at intervals along a first direction (X direction in the figure) on opposite sides of the base 10. The first positioning assembly 20 can make the inner side and the outer side of the plurality of stirrups 82 abut against the inner arc side and the outer arc side of the single sheet net 81 respectively and limit the movement of the stirrups 82 in the horizontal direction. The second positioning assembly 30 is also installed on the base 10 and is arranged in multiple groups along the extension direction of the base 10. The second positioning assembly 30 can apply pressure to the stirrups 82 to keep the heights of the stirrups 82 consistent.

[0050] In the above shield segment steel reinforcement cage three-dimensional net welding mold set, the single sheet net positioning mechanism and the stirrup positioning mechanism are respectively used to position the single sheet net 81 and the stirrup 82. The single sheet net positioning mechanism mainly positions the single sheet net 81 by supporting the single sheet net 81. The first positioning assembly 20 in the stirrup positioning mechanism mainly makes the inner side and the outer side of the stirrup 82 abut against the inner arc side and the outer arc side of the single sheet net 81 respectively and limits the stirrup in the horizontal direction. The second positioning assembly 30 can keep the heights of the stirrups 82 consistent by applying pressure to the stirrups 82, which facilitates the welding of the stirrups 82 and the single sheet net 81.

[0051] Reference Figure 8 and Figure 9As shown, the first positioning assembly 20 comprises a positioning bracket 21, a positioning clamping plate 22 and a first driving member 23. The positioning bracket 21 is in the shape of a circular arc consistent with the curvature of the single-piece net 81. The first driving member 23 is arranged in multiple numbers along the extension direction of the positioning bracket 21. The first driving member 23 can extend to the inner side of the positioning bracket 21 along a direction perpendicular to the positioning bracket 21. The multiple positioning clamping plates 22 are arranged one by one on the output end of the first driving member 23. The opposite side of the positioning clamping plate 22 on the two groups of first positioning assemblies 20 is provided with a positioning clamping groove 221. The positioning clamping groove 221 is in the shape of a V. The stirrup 82 can be clamped into the positioning clamping groove 221 and moved to the direction of the single-piece net 81 under the action of the first driving member 23 to abut against the inner arc side or the outer arc side of the single-piece net 81. In the process of clamping the stirrup 82 into the positioning clamping groove 221, the V-shaped positioning clamping groove 221 also has a guiding effect, which can adjust the stirrup 82 to a preset position and limit the movement of the stirrup 82 in the horizontal direction. Moreover, since each first driving member 23 is arranged on the circular arc-shaped positioning bracket 21, the stroke of each first driving member 23 is consistent when pushing the positioning clamping plate 22 to move, thereby reducing the control difficulty of the first positioning assembly 20. Exemplarily, the first driving member 23 is selected as a pneumatic cylinder, which has less pollution to the environment compared with an oil cylinder. It can be understood that one positioning clamping plate 22 can be provided with one positioning clamping groove 221 or multiple positioning clamping grooves 221, and the positioning clamping groove 221 is arranged one by one with the stirrup 82. In this embodiment, in order to reduce the cost while ensuring the positioning accuracy, two positioning clamping grooves 221 are arranged on each positioning clamping plate 22, which can simultaneously position two adjacent stirrups 82. More specifically, a reinforcing rib 222 is arranged between the two positioning clamping grooves 221 on the positioning clamping plate 22.

[0052] Further, the positioning bracket 21 comprises a stand 211 and a mounting plate 212. Multiple layers of mounting plates 212 can be arranged on the stand 211. Each mounting plate 212 is installed with multiple first driving members 23, and the first driving members 23 on different layers of mounting plates 212 are one by one corresponding, so that the stirrup 82 can be kept in a vertical state. Exemplarily, the mounting plate 212 is arranged in two layers, which can reduce the cost as much as possible while ensuring the verticality of the stirrup 82. The height of the mounting plate 212 on the bottom layer on the stand 211 is adjustable.

[0053] In this embodiment, the second positioning assembly 30 is arranged in three groups and is uniformly distributed at the middle position of the base 10. Referring to Figure 10The second positioning assembly 30 includes a pressing bracket 31, a pressing block 32, a pressing shaft 33 and a second driving member 34. The pressing bracket 31 is installed on the base 10, the second driving member 34 is installed on the pressing bracket 31, the pressing block 32 is installed on the output end of the second driving member 34, the second driving member 34 can drive the pressing block 32 to press down, and the pressing shaft 33 is arranged on the pressing block 32. The pressing shaft 33 can abut against the top surface of the bottom layer of single mesh 81 and press down the bottom layer of single mesh 81 under the action of the second driving member 34, so as to press down each stirrup 82 through the bottom layer of single mesh 81, thereby realizing the positioning of the stirrup 82 in the height direction. The second driving member 34 is selected as a pneumatic cylinder.

[0054] During the welding process of the reinforcement cage 80, each single mesh 81 needs to be sequentially placed on the single mesh positioning mechanism, and then the stirrup 82 is placed on the single mesh 81. The second positioning assembly 30 needs to avoid interference between the single mesh 81 and the single mesh 81 during placement, that is, the bottom layer of single mesh 81 needs to be placed below the second positioning assembly 30. Based on this, the pressing block 32 in the second positioning assembly 30 is rotatable to adjust the direction of the pressing shaft 33. Specifically, the second positioning assembly 30 further includes a rotating driving member, which can be a rotating motor. The rotating driving member is arranged on the output end of the second driving member 34, and the pressing block 32 is arranged on the output end of the rotating driving member. Under the action of the rotating driving member, the pressing block 32 drives the pressing shaft 33 to rotate. As known from the prior art, the single mesh 81 includes inner arc reinforcement, outer arc reinforcement and tension reinforcement. The tension reinforcement is welded between the inner arc reinforcement and the outer arc reinforcement to form the single mesh 81. If the distance between adjacent tension reinforcements is greater than the distance between the inner arc reinforcement and the outer arc reinforcement, the pressing shaft 33 can press down the single mesh 81 along the normal direction of the inner arc reinforcement (or the outer arc reinforcement). After rotating 90°, the pressing shaft 33 can avoid the inner arc reinforcement and the outer arc reinforcement to enable the single mesh 81 to smoothly pass through the pressing shaft 33. If the distance between adjacent tension reinforcements is less than the distance between the inner arc reinforcement and the outer arc reinforcement, the pressing shaft 33 can press down the single mesh 81 by pressing two adjacent tension reinforcements at both ends. After rotating 90°, the pressing shaft 33 can avoid the tension reinforcement to enable the single mesh 81 to smoothly pass through the pressing shaft 33.

[0055] In another embodiment, based on the spacing between adjacent stirrups being less than the spacing of the inner arc steel bars and the outer arc steel bars, the pressing block 32 and the pressing shaft 33 are arranged to be detachable instead of the rotary driving member, when stacking the bottommost single piece net 81, the pressing shaft 33 can be first removed from the pressing block 32, after the stirrup 82 is stacked, the pressing shaft 33 and the pressing block 32 are manually connected, so that the pressing shaft 33 respectively abuts against the inner arc steel bars and the outer arc steel bars, the second driving member 34 drives the pressing block 32 to move downward, and the bottommost single piece net 81 is pressed to align the stirrup 82. Such arrangement can avoid the pressing shaft 33 pressing the single piece net 81 by pressing the stirrup, reduce the tension between the stirrup and the inner arc steel bars and the outer arc steel bars, and avoid the stirrup from being separated from the inner arc steel bars or the outer arc steel bars. For example, the pressing block 32 is provided with a through hole for inserting the pressing shaft 33, when the pressing shaft 33 and the pressing block 32 are connected, the pressing shaft 33 can be directly inserted into the through hole, and both ends of the pressing shaft 33 pass through the pressing block 32.

[0056] Further, based on the second driving member 34 being a cylinder, the pressing block 32 is provided with a plurality of through holes arranged in the vertical direction, the height of the pressing shaft 33 is adjusted by adjusting the position of the pressing shaft 33 inserted into the through hole, and under the premise that the stroke of the second driving member 34 is constant, the bottommost single piece net 81 at different heights can be adapted.

[0057] Reference Figures 4-7As shown, the single-piece net positioning mechanism includes a third positioning assembly 40 and a fourth positioning assembly 50, wherein the number of the third positioning assembly 40 is two, the two third positioning assemblies 40 are respectively arranged at the two ends of the length of the base 10, the third positioning assembly 40 includes an end head bracket 41, a third driving member 43, and a supporting plate 42, a plurality of third driving members 43 are arranged on the end head bracket 41 in a vertical direction, the supporting plate 42 is arranged on the output end of the third driving member 43 one by one, the third driving members 43 arranged on the two end head brackets 41 also correspond one by one, and the supporting plates 42 connected by the opposite two third driving members 43 can support the two ends of the same single-piece net 81 respectively. Exemplarily, the third driving member 43 is a pneumatic cylinder. The pneumatic cylinder is installed on the side opposite to the two end head brackets 41 by a driving member connecting seat 44 to avoid interference of the pneumatic cylinder with the stacking of the single-piece net 81, and the output end of the pneumatic cylinder penetrates into the end head bracket 41 and is connected with the supporting plate 42 located on the side opposite to the two end head brackets 41; the number of the fourth positioning assembly 50 is also two, the two fourth positioning assemblies 50 are arranged between the two third positioning assemblies 40, the fourth positioning assembly 50 includes an intermediate bracket 51, a fourth driving member 53, and an extension shaft 52, a plurality of fourth driving members 53 are arranged on the intermediate bracket 51 in a vertical direction and correspond to the third driving members 43 on the end head bracket 41 one by one, and the extension shaft 52 is arranged on the output end of the fourth driving member 53 one by one. It should be emphasized that the fourth driving members 53 are divided into two groups, the directions of the two groups of fourth driving members 53 extending are opposite to each other to support the inner arc side and the outer arc side of the single-piece net 81 respectively. Exemplarily, one group of the two groups of fourth driving members 53 is arranged on one intermediate bracket 51, and the other group is arranged on the other intermediate bracket 51. The fourth driving member 53 can be selected as a pneumatic cylinder, at this time, the output end of the pneumatic cylinder itself can be used as the extension shaft 52, and the pneumatic cylinder is arranged in the intermediate bracket 51 to avoid interference of the pneumatic cylinder with the stacking of the single-piece net 81, and a through hole is formed in the intermediate bracket 51 for the output end of the pneumatic cylinder to penetrate out.

[0058] The stirrup positioning mechanism in the embodiment also includes a fifth driving member 24, the output end of the fifth driving member 24 is connected with the positioning bracket 21 to drive the positioning bracket 21 to move close to or away from the base 10. Exemplarily, the fifth driving member 24 is a pneumatic cylinder, and two pneumatic cylinders are arranged on the length direction of the positioning bracket 21 in a spaced manner. The stroke of the pneumatic cylinder as the fifth driving member 24 is greater than the stroke of the pneumatic cylinder as the first driving member 23. When the welding robot welds the single-piece net 81 and the stirrup 82, some welding points not interfered by the first positioning assembly 20 can be welded first, after the single-piece net 81 and the stirrup 82 are fixed, the positioning bracket 21 can be driven by the fifth driving member 24 to move away from the base 10, and then the welding points previously interfered by the first positioning assembly 20 are welded.

[0059] The welding robot 60 comprises a robot body 61 and a base 62, the robot body 61 is movably arranged on the base 62 along a second direction to move from one end of the single-mesh positioning mechanism to the other end to weld the single-mesh 81 and the stirrup 82, the second direction is perpendicular to the first direction. It can be understood that during welding, the robot body 61 can perform welding work on the reinforcement cage 80 from the top of the positioning support 21 or from below the positioning support 21 or from between the two mounting plates 212 of the positioning support 21. Exemplarily, the robot body 61 is selected as a five-axis or six-axis robot.

[0060] The welding robot 60 further comprises a 3D vision camera, which is installed on the robot body 61 and moves with the robot body 61, and takes pictures of the lap joints of the single-mesh 81 and the stirrup 82 during movement, and then automatically completes the welding of the welding points by the robot body 61.

[0061] In the embodiment, the stirrup positioning mechanism further comprises a guide assembly 70, which can improve the stability of the movement of the positioning support 21. The guide assembly 70 comprises guide rails 71 and rollers 72 in rolling cooperation with the guide rails 71. The guide rails 71 extend along the first direction, and there are three guide rails 71, two of which are arranged on the two sides of the positioning support 21 along the length direction, and the two rollers 72 corresponding to the two guide rails 71 are rotatably installed on the two sides of the bottom of the positioning support 21 and are in rolling cooperation with the guide rails 71. The other guide rail 71 is arranged at the center of the bottom of the positioning support 21, and the roller 72 installed at the center of the bottom of the positioning support 21 is in rolling cooperation with the guide rail 71. Exemplarily, the two guide rails 71 on the two sides are U-shaped channel steels, the two U-shaped channel steels are arranged in parallel but the opening directions are opposite, and the guide rail 71 in the middle is a guide block, and the roller 72 abuts against the side surface of the guide block.

[0062] In order to improve the welding efficiency, the entire welding production line is provided with at least three stations, which are a stirrup stacking area, a welding area and a finished product taking area. The stacking of the stirrup 82 is performed in the stirrup stacking area, the welding between the stirrup 82 and the single-mesh 81 is performed in the welding area, the first positioning assembly 20 is arranged in the welding area and does not move with the base 10, and the hoisting of the finished reinforcement cage 80 is performed in the finished product taking area. The stations are connected to each other, and the various processes of the reinforcement cage 80 welding can be performed synchronously. In order to facilitate the movement of the base 10 and the various functional assemblies arranged on the base 10 between different stations, the welding production line further comprises a conveying mechanism 90, which can convey the base 10 to the stirrup stacking area, the welding area and the finished product taking area in sequence.

[0063] Specifically, the conveying mechanism 90 comprises a support plate 91, a driving conveying roller 92, a driven conveying roller 93 and a sixth driving member 94. The support plate 91 extends along the stirrup stacking area, the welding area and the finished product taking area and is in a whole circular arc shape. A plurality of driving conveying rollers 92 are arranged on the support plate 91 in a spaced and rotating manner, and the output end of the sixth driving member 94 is connected with the driving conveying roller 92. The driven conveying roller 93 is arranged on the support plate 91 in a rotating manner, and the driven conveying roller 93 is arranged between any two adjacent driving conveying rollers 92. The driving conveying roller 92 drives the base 10 and each functional component on the base 10 to move between the three workstations through the friction between the driving conveying roller 92 and the base 10. The sixth driving member 94 is a rotary motor.

[0064] In still another embodiment of the present application, a welding method is provided, which can be used for welding the reinforcement cage 80 by using the welding production line, and mainly comprises the following steps:

[0065] S1, sequentially stack a plurality of single nets 81 on the single net positioning mechanism from bottom to top.

[0066] Specifically, the step S1 comprises:

[0067] S1.1, retract all the third driving members 43 and the fourth driving members 53 except the third driving member 43 and the fourth driving member 53 located at the bottom layer, so as to avoid the interference between the supporting plates 42 and the telescopic shafts 52 and the single nets 81.

[0068] S1.2, place the first single net 81 (the single net 81 at the bottom layer) on the supporting plate 42 and the telescopic shaft 52 at the bottom layer, and the supporting plate 42 and the telescopic shaft 52 support the two ends, the inner arc side and the outer arc side of the single net 81, respectively.

[0069] S1.3, extend the third driving member 43 and the fourth driving member 53 located at the layer above the layer, and place the next single net 81 on the supporting plate 42 and the telescopic shaft 52 at the layer above the layer from top to bottom, and the supporting plate 42 and the telescopic shaft 52 support the two ends, the inner arc side and the outer arc side of the single net 81, respectively.

[0070] S1.4, repeat the step S1.3, so that the third driving member 43 and the fourth driving member 53 are sequentially extended from bottom to top to support the plurality of single nets 81.

[0071] S2, transfer the base 10 on which the single nets 81 are placed to the stirrup stacking area.

[0072] S3, manually stack the stirrups 82 to the outer periphery of the single nets 81.

[0073] S4, positioning the stirrup by the first positioning assembly 20: the first driving member 23 drives the positioning clamping plate 22 to continue moving towards the stirrup 82, and the positioning clamping plate 22 is used to position the stirrup 82 and make the stirrup 82 abut against the inner arc side and the outer arc side of the single piece net 81.

[0074] S5, positioning the stirrup by the second positioning assembly 30: the pressing shaft 33 is inserted into the through hole of the pressing block 32, the second driving member 34 drives the pressing block 32 to press downwards, the height of the stirrup 82 is adjusted by the bottom single piece net 81, and the stirrup 82 is kept flush. It can be understood that S5 is executed after S4 to facilitate the movement of the stirrup 82 to the preset position under the guidance of the positioning clamping groove 221; if the height of the stirrup 82 is positioned by the second positioning assembly 30 first, the difficulty of moving the stirrup 82 along the single piece net 81 after being pressed increases.

[0075] S6, the welding robot 60 welds the lap joint of the stirrup 82 and the single piece net 81 to form the finished product of the steel reinforcement cage 80. The determination of the welding point is realized by the 3D visual camera of the welding robot 60, the welding efficiency is high, and the welding quality is good.

[0076] It should be noted that the positioning support 21 can be driven by the fifth driving member 24 to avoid obstacles during the welding process.

[0077] S7, after the welding is completed, the finished product of the steel reinforcement cage 80 is transferred to the finished product taking area.

[0078] Obviously, the above embodiments of the present application are only examples for clear illustration of the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. It is not necessary or possible to exhaust all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A shield segment reinforcement cage welding jig, characterized by, The utility model relates to a shield segment steel reinforcement cage welding mould which comprises a base (10), a single piece net positioning mechanism installed on the base (10) to support and position a single piece net (81) constituting a steel reinforcement cage (80), a stirrup positioning mechanism comprising a first positioning assembly (20) and a second positioning assembly (30), the first positioning assembly (20) is provided with two groups, the two groups of first positioning assemblies (20) are symmetrically arranged on opposite sides of the base (10) and are used for positioning the inner side and the outer side of a stirrup (82) constituting the steel reinforcement cage (80) respectively, the second positioning assembly (30) is installed on the base (10) and can apply pressure to each stirrup (82) to keep the stirrups (82) flush in height, the first positioning assembly (20) comprises a positioning support (21), a positioning clamping plate (22) and a first driving element (23), the first driving element (23) is provided with a plurality of first driving elements (23) on the positioning support (21) at intervals, the first driving element (23) can extend to the inner side of the positioning support (21), a plurality of positioning clamping plates (22) are correspondingly arranged on the output end of the first driving element (23), the positioning clamping plate (22) is provided with a positioning clamping groove (221), and the positioning clamping groove (221) is in a V shape, the second positioning assembly (30) comprises a pressing support (31), a pressing block (32), a pressing shaft (33) and a second driving element (34), the pressing support (31) is installed on the base (10), the second driving element (34) is installed on the pressing support (31), the pressing block (32) is installed on the output end of the second driving element (34), the pressing shaft (33) is arranged on the pressing block (32), and the second driving element (34) can drive the pressing block (32) to press down so that the pressing shaft (33) abuts against the single piece net (81). The positioning support (21) comprises a stand column (211) and a mounting plate (212), the mounting plate (212) is provided with two layers on the stand column (211), the first driving element (23) is installed on both the mounting plates (212), and the first driving elements (23) on the two mounting plates (212) are correspondingly arranged. The pressing block (32) and the pressing shaft (33) are detachably connected. The pressing block (32) is provided with a through hole for inserting the pressing shaft (33), and the pressing shaft (33) penetrates the pressing block (32) at both ends. The second driving element (34) is a pneumatic cylinder, and the pressing block (32) is provided with a plurality of through holes in the vertical direction. The stirrup positioning mechanism further comprises a fifth driving element (24), and the fifth driving element (24) can drive the positioning support (21) to move close to or away from the base (10).

2. The shield segment reinforcement cage welding die of claim 1, wherein, The utility model further relates to a welding robot (60) and a shield segment steel reinforcement cage welding mould, the number of welding robots (60) is two, and the two welding robots (60) are arranged on the outer sides of the two groups of first positioning assemblies (20) respectively.

3. The shield segment reinforcement cage welding die of claim 1, wherein, ​ 4. The shield segment reinforcement cage welding die of claim 3, wherein, ​ 5. The shield segment reinforcement cage welding die of claim 4, wherein, ​ 6. The shield segment reinforcement cage welding die of any one of claims 1-2, wherein, ​ 7. A welding line, characterized in that ​ 8. A method of welding a reinforcement cage using the welding production line of claim 7, the method comprising the steps of: stacking a plurality of single mesh sheets on the single mesh sheet positioning mechanism one after another from bottom to top; manually stacking a stirrup around the periphery of the single mesh sheet; positioning the stirrup using the first positioning assembly; positioning the stirrup using the second positioning assembly; welding the overlap points of the stirrup and the single mesh sheet by the welding robot to form a reinforcement cage product.

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