Reinforcing mesh welding equipment and method based on PLC control

Abstract

The invention discloses reinforcing mesh welding equipment and method based on PLC control, and relates to the technical field of reinforcing mesh welding. A plurality of sets of welding heads are installed at the bottom of a welding control base, a first steel bar positioning assembly and a second steel bar positioning assembly are arranged in a cross shape, a plurality of first steel bar positioning points are arranged on the first steel bar positioning assembly, and first steel bars are borne and positioned through the first steel bar positioning points; the second steel bar positioning points are higher than the first steel bar positioning points, and the second steel bars are perpendicularly attached to the tops of the first steel bars to form a plurality of welding points. After welding is completed, the PLC control system controls the horizontal conveying screw rod to rotate by a certain number of turns again, so that the whole reinforcing mesh advances by a fixed distance, the next row of welding points are aligned with each group of welding heads, and the PLC control system repeats the same instruction after welding is completed again, so that automatic welding operation of the reinforcing mesh can be realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel mesh welding, in particular to a steel mesh welding equipment and method based on PLC control. BACKGROUND

[0002] The steel mesh is a mesh in which longitudinal steel bars and transverse steel bars are arranged at a certain interval and are perpendicular to each other, and all intersection points are welded together, and is applied in the fields of beam and column floor, roof, wall, concrete pavement, bridge pavement, airport runway, tunnel lining, box culvert, wharf floor, prefabricated components, etc. of industrial and civil buildings.

[0003] In the prior art, the laying of the steel mesh is mainly carried out by manpower using a wire to bundle at the construction site, or the steel mesh is welded in advance by using a welding machine, and then is directly transported to the construction site for use. In the actual operation process, the welding points are prone to poor consistency due to the clamping error of the clamp and human factors, which leads to uneven shapes of the steel mesh and affects the subsequent construction quality. Meanwhile, the automation degree of the steel mesh welding is low, which affects the welding efficiency of the steel mesh. SUMMARY

[0004] The purpose of the present application is to provide a steel mesh welding equipment and method based on PLC control, which solves the problems in the background art through the specific structural design of the welding control mechanism, the horizontal conveying mechanism, the steel positioning assembly one, the steel positioning assembly two and the lifting assembly.

[0005] To solve the above technical problems, the present application is achieved by the following technical scheme: the present application is a steel mesh welding equipment based on PLC control, which comprises a welding control mechanism, a horizontal conveying mechanism is slidably arranged inside the welding control mechanism, and a mesh positioning mechanism is installed on the horizontal conveying mechanism; wherein the welding control mechanism comprises a welding control seat arranged on a welding station, a plurality of welding heads are installed at the bottom of the welding control seat, and each welding head is composed of two symmetrical welding heads; the mesh positioning mechanism comprises a steel positioning assembly one and a steel positioning assembly two, the steel positioning assembly one and the steel positioning assembly two are arranged in a cross shape, a plurality of steel positioning points one are arranged on the steel positioning assembly one to achieve the load positioning of steel one, a plurality of steel positioning points two are arranged on the steel positioning assembly two to achieve the load positioning of steel two, the height of the steel positioning points two is higher than that of the steel positioning points one, and the steel two is vertically attached to the top of the steel one to form a plurality of welding points.

[0006] In the embodiment of the present application, the welding control mechanism further comprises a welding frame, a U-shaped support frame is fixedly installed on the top of the welding frame, a fine adjustment hydraulic cylinder is installed on the top of the U-shaped support frame, the welding control seat is slidably arranged on the inner wall of the U-shaped support frame and connected with the output end of the fine adjustment hydraulic cylinder, a first limiting groove is formed in the bottom of the welding frame, and a horizontal conveying screw is rotatably arranged on the inner side of the welding frame and connected with a conveying control motor on one side thereof.

[0007] In the embodiment of the present application, the welding frame is provided with a lower guide groove on each of the opposite inner side walls, an upper guide groove is arranged above the lower guide groove, a first inclined guide groove is communicatively arranged at the end of the lower guide groove away from the conveying control motor, the first inclined guide groove is in communication with the upper guide groove, a second inclined guide groove is arranged on the side of the first inclined guide groove close to the conveying control motor, and the second inclined guide groove is communicatively arranged between the lower guide groove and the upper guide groove.

[0008] In the embodiment of the present application, the horizontal conveying mechanism comprises a horizontal conveying seat slidably connected with the first limiting groove and arranged on the inner side of the welding frame, a screw adapter seat is fixedly arranged on the top of the horizontal conveying seat and sleeved on the horizontal conveying screw, the screw adapter seat is threadedly matched with the horizontal conveying screw, and guide pipes are fixedly arranged at the top of the horizontal conveying seat.

[0009] In the embodiment of the present application, the mesh positioning mechanism further comprises a lifting assembly, wherein the lifting assembly comprises a lifting frame, a first sliding channel and a second sliding channel are formed in the top of the lifting frame and in communication with the inner cavity of the lifting frame, the first sliding channel and the second sliding channel are cross-arranged, a first adjusting screw and a second adjusting screw are rotatably arranged on the inner side of the lifting frame, and the first adjusting screw and the second adjusting screw are cross-arranged.

[0010] In the embodiment of the present application, guide rods are fixedly arranged at the four corners of the bottom of the lifting frame, the guide rods are slidably inserted into the corresponding guide pipes, limit seats are fixedly arranged on the circumferential surface of the guide rods, and guide lifting rods are slidably arranged in the lower guide grooves and fixed to the circumferential surface of the limit seats.

[0011] In the embodiment of the present application, the first reinforcing steel positioning assembly comprises two symmetrically arranged first moving frames, a first linkage seat is slidably arranged on the bottom of the first moving frame and matched with the first sliding channel, and the first linkage seat is sleeved on the first adjusting screw and threadedly matched therewith; the second reinforcing steel positioning assembly comprises two symmetrically arranged second moving frames, a second linkage seat is slidably arranged on the bottom of the second moving frame and matched with the second sliding channel, and the second linkage seat is sleeved on the second adjusting screw and threadedly matched therewith; and end positioning plates are fixedly arranged in the first moving frame and the second moving frame.

[0012] In the embodiment of the present application, the second limiting groove is arranged in the inner bottom of the first moving frame and the second moving frame, the third control screw is rotatably arranged on the inner side of the first moving frame and the second moving frame, and the third control screw is connected with the control motor on one side thereof; a plurality of groups of steel bar supporting parts are arrayed on the inner side of the first moving frame and the second moving frame, the steel bar supporting part is composed of the symmetrically arranged first supporting part and second supporting part, the mobile part is fixedly arranged on the bottom of the second supporting part, the mobile part and the first supporting part are both in sliding connection with the second limiting groove, the moving opening in sliding connection with the second supporting part is arranged on the surface of the first supporting part, the third control screw is provided with the bi-directional screw structure corresponding to the steel bar supporting part, and the first supporting part and the second supporting part are in threaded connection with the corresponding bi-directional screw structure.

[0013] The present application has the following advantages: 1. After the mesh positioning mechanism carrying the steel mesh is lifted to a set height, the mesh positioning mechanism is controlled to feed a certain distance each time, each welding point is welded by each group of welding heads, after the welding heads complete the welding of each welding point at a position, the PLC control system controls the fine adjustment hydraulic cylinder to drive each group of welding heads to move upward and reset, then the PLC control system controls the horizontal conveying screw to rotate a certain number of turns, so that the whole steel mesh advances by a fixed distance, so that the next row of welding points is aligned with each group of welding heads, and after welding is completed again, the PLC control system repeats the same instruction, so that automatic welding of the steel mesh can be realized.

[0014] 2. After the steel positioning assembly one realizes the supporting and positioning of the steel one, and the steel positioning assembly two realizes the supporting and positioning of the steel two, the control motor on the steel positioning assembly two is controlled to drive the third control screw to rotate, so that each group of first supporting parts and second supporting parts on the steel positioning assembly two move away from each other, until each steel two is attached to the top of the steel one, so that the composition of the steel mesh is completed, the height of the position of the steel one or the steel two can be adjusted by the first supporting part and the second supporting part which can move towards each other, so that the supporting and positioning of different types of steel can be realized.

[0015] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1The structural schematic diagram of the steel mesh welding equipment based on PLC control in the application.

[0018] Figure 2 The structural schematic diagram of the welding control mechanism in the application.

[0019] Figure 3 The structural sectional view of Figure 2 .

[0020] Figure 4 The structural schematic diagram of the horizontal conveying mechanism in the application.

[0021] Figure 5 The structural schematic diagram of the mesh positioning mechanism in the application.

[0022] Figure 6 The structural top view of Figure 5 .

[0023] Figure 7 The structural schematic diagram of the lifting assembly in the application.

[0024] Figure 8 The structural side view of Figure 7 .

[0025] Figure 9 The cooperation relationship diagram between the steel positioning assembly one and the steel one in the application.

[0026] Figure 10 The local structural enlarged view of A in Figure 9 .

[0027] Figure 11 The cooperation relationship diagram between the steel positioning assembly two and the steel two in the application.

[0028] In the drawings, the component list represented by each mark is as follows:

[0029] 1-welding control mechanism, 101-welding control seat, 102-welding head, 103-welding frame, 104-U-shaped support frame, 105-fine adjustment hydraulic cylinder, 106-first limiting groove, 107-horizontal conveying screw, 108-conveying control motor, 109-lower guide groove, 110-upper guide groove, 111-first inclined guide groove, 112-second inclined guide groove, 2-horizontal conveying mechanism, 201-horizontal conveying seat, 202-screw adapter seat, 203-guide tube, 3-mesh positioning mechanism, 4-reinforcing steel positioning assembly one, 401-first moving frame, 402-first linkage seat, 5-reinforcing steel positioning assembly two, 501-second moving frame, 502-second linkage seat, 503-end positioning plate, 504-second limiting groove, 505-third adjusting screw, 506-adjusting motor, 507-first supporting piece, 508-second supporting piece, 509-moving piece, 510-moving opening, 6-reinforcing steel one, 7-reinforcing steel two, 8-lifting assembly, 801-lifting frame, 802-first sliding channel, 803-second sliding channel, 804-first adjusting screw, 805-second adjusting screw, 806-guide rod, 807-limiting seat, 808-guiding lifting rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0031] Specific embodiment one, please refer to Figures 1-11 The present application is a reinforcing mesh welding equipment based on PLC control, which comprises a welding control mechanism 1. A horizontal conveying mechanism 2 is slidably arranged inside the welding control mechanism 1, and a mesh positioning mechanism 3 is installed on the horizontal conveying mechanism 2. The welding control mechanism 1 comprises a welding control seat 101 arranged on a welding station, and a plurality of groups of welding heads 102 are installed at the bottom of the welding control seat 101. Each group of welding heads 102 is composed of two symmetrical welding heads 102. The part of the welding head 102 in the present embodiment belongs to the prior art, and thus will not be described in detail here. The welding head 102 related welding equipment can be installed on the welding control seat 101.

[0032] The mesh positioning mechanism 3 comprises a steel bar positioning assembly one 4 and a steel bar positioning assembly two 5, the steel bar positioning assembly one 4 and the steel bar positioning assembly two 5 are arranged in a cross shape, a plurality of steel bar positioning points one are arranged on the steel bar positioning assembly one 4, the steel bar positioning points one are used for achieving the bearing positioning of the steel bar one 6, a plurality of steel bar positioning points two are arranged on the steel bar positioning assembly two 5, the steel bar positioning points two are used for achieving the bearing positioning of the steel bar two 7, the height of the steel bar positioning points two is higher than that of the steel bar positioning points one, the steel bar two 7 is vertically attached on the top of the steel bar one 6 to form a plurality of welding points, the steel bar one 6 and the steel bar two 7 are arranged in a cross shape to form a steel mesh, after welding the two sides of each welding point on the steel mesh through the welding head 102, the entire steel mesh fixed by welding can be transported to a construction site for use.

[0033] In the embodiment of the application, as shown in Figure 2 The welding control mechanism 1 further comprises a welding frame 103, a U-shaped support frame 104 is fixedly installed on the top of the welding frame 103, a fine adjustment hydraulic cylinder 105 is installed on the top of the U-shaped support frame 104, the welding control seat 101 is slidably arranged on the inner wall of the U-shaped support frame 104 and is connected with the output end of the fine adjustment hydraulic cylinder 105, a first limiting groove 106 is formed in the inner bottom of the welding frame 103, a horizontal conveying screw 107 is rotatably arranged on the inner side of the welding frame 103 and is connected with a conveying control motor 108 on one side, when the horizontal conveying screw 107 is driven to rotate by starting the conveying control motor 108, the horizontal conveying mechanism 2 can drive the mesh positioning mechanism 3 to move horizontally in the welding frame 103.

[0034] Further, a lower guide groove 109 is formed on the opposite inner side walls of the welding frame 103, an upper guide groove 110 is arranged above the lower guide groove 109, a first inclined guide groove 111 is communicatively arranged at the end of the lower guide groove 109 away from the conveying control motor 108, the first inclined guide groove 111 is in communication with the upper guide groove 110, a second inclined guide groove 112 is arranged on the side of the first inclined guide groove 111 close to the conveying control motor 108 and is in communication between the lower guide groove 109 and the upper guide groove 110, through the cooperation of the lower guide groove 109, the upper guide groove 110, the first inclined guide groove 111 and the second inclined guide groove 112, the mesh positioning mechanism 3 can be guided during the movement in the inner side of the welding frame 103.

[0035] In the embodiment of the application, as shown in Figure 1 and Figure 4As shown, the horizontal conveying mechanism 2 comprises a horizontal conveying seat 201 arranged inside the welding rack 103 and in sliding connection with the first limiting channel 106, a screw adapter seat 202 fixed at the top center position of the horizontal conveying seat 201 and sleeved on the horizontal conveying screw 107, the screw adapter seat 202 being in threaded cooperation with the horizontal conveying screw 107, and a guide pipe 203 fixed at the top four corner positions of the horizontal conveying seat 201. When the conveying control motor 108 drives the horizontal conveying screw 107 to rotate, the horizontal conveying mechanism 2 drives the mesh positioning mechanism 3 to move horizontally inside the welding rack 103 by the threaded cooperation between the horizontal conveying screw 107 and the screw adapter seat 202.

[0036] In this embodiment of the present application, as shown in Figure 7 and Figure 8 The mesh positioning mechanism 3 further comprises a lifting assembly 8. The lifting assembly 8 comprises a lifting frame 801, the top of which is provided with a first sliding channel 802 and a second sliding channel 803 in communication with the inner cavity of the lifting frame 801, the first sliding channel 802 and the second sliding channel 803 being arranged in a cross shape, and the inner side of the lifting frame 801 is respectively provided with a first regulating screw 804 and a second regulating screw 805 arranged in a cross shape. The bottom four corner positions of the lifting frame 801 are fixed with guide rods 806 which are slidingly inserted into the corresponding guide pipes 203, the circumferential side of the guide rods 806 is fixedly installed with limiting seats 807, and the circumferential side of the limiting seats 807 is fixedly installed with guide lifting rods 808 which are slidingly fitted in the lower guide channel 109.

[0037] In the initial state, each guide lifting rod 808 is inside the lower guide channel 109, at this time, the bottom of the limiting seat 807 is attached to the top of the guide pipe 203, and the entire mesh positioning mechanism 3 is at the lowest position. When the conveying control motor 108 drives the horizontal conveying screw 107 to rotate, the horizontal conveying mechanism 2 is gradually moved to the welding station, and when the guide lifting rod 808 near the welding station slides to the bottom of the first inclined guide slot 111, the guide lifting rod 808 away from the welding station synchronously slides to the bottom of the second inclined guide slot 112. With the continuous movement of the horizontal conveying mechanism 2, the guide lifting rods 808 slide upward along the first inclined guide slot 111 and the second inclined guide slot 112, respectively, and in this process, the guide rods 806 slide upward along the guide pipes 203, and the entire mesh positioning mechanism 3 carrying and positioning the reinforcing mesh is gradually lifted until each guide lifting rod 808 slides into the upper guide channel 110, at this time, the entire mesh positioning mechanism 3 carrying and positioning the reinforcing mesh is at the highest position. Continue to control the entire mesh positioning mechanism 3 carrying and positioning the reinforcing mesh to advance until a row of welding points at the front end of the reinforcing mesh aligns with each group of welding heads 102.

[0038] Subsequently, each group of welding heads 102 on the welding control seat 101 is controlled to descend to a set position by the fine adjustment hydraulic cylinder 105, at this time, each welding head 102 on each group of welding heads 102 is aligned on both sides of the welding point, after the welding of each welding point at this position is completed by the welding head 102, the PLC control system first controls the fine adjustment hydraulic cylinder 105 to drive each group of welding heads 102 to move upward to reset, then the PLC control system controls the horizontal conveying screw 107 to rotate a certain number of turns again, so that the entire steel mesh advances a fixed distance, so that the next row of welding points is aligned with each group of welding heads 102, after welding again, the PLC control system repeats the same instructions, so that each row of welding points can advance to align with each group of welding heads 102, and so on until all welding points on the steel mesh are welded, finally, the conveying control motor 108 is controlled by the PLC control system to drive the horizontal conveying screw 107 to rotate in the opposite direction, so that the entire mesh positioning mechanism 3 carrying and positioning the steel mesh returns to the initial position, after the steel mesh after welding is taken down, another steel mesh can be assembled for welding.

[0039] Specific embodiment two, on the basis of specific embodiment one, as shown in Figure 9 , Figure 10 and Figure 11 , the steel positioning assembly one 4 includes two symmetrically arranged first moving frames 401, the first moving frame 401 is fixed at the bottom with the first linkage seat 402 which is in sliding cooperation with the first slide 802, the first linkage seat 402 is sleeved on the first control screw 804 and the two are in threaded cooperation; the steel positioning assembly two 5 includes two symmetrically arranged second moving frames 501, the second moving frame 501 is fixed at the bottom with the second linkage seat 502 which is in sliding cooperation with the second slide 803, the second linkage seat 502 is sleeved on the second control screw 805 and the two are in threaded cooperation, the first moving frame 401 and the second moving frame 501 are both fixed with end positioning plates 503 inside.

[0040] Further, the second limiting grooves 504 are arranged in the inner bottom of the first moving frame 401 and the second moving frame 501, the third control screw 505 is arranged in the inner side of the first moving frame 401 and the second moving frame 501, and the third control screw 505 is connected with the control motor 506 on one side; a plurality of groups of steel bar supporting parts are arranged in the inner side of the first moving frame 401 and the second moving frame 501, the steel bar supporting part is composed of the first supporting part 507 and the second supporting part 508 (the first supporting part 507 and the second supporting part 508 form the steel bar positioning point one or the steel bar positioning point two), the moving part 509 is arranged on the bottom of the second supporting part 508, the first supporting part 507 and the second supporting part 508 are slidably connected with the second limiting grooves 504, the moving opening 510 is arranged on the surface of the first supporting part 507 and slidably connected with the second supporting part 508, the bi-directional screw structure corresponding to the steel bar supporting part is arranged on the circumferential surface of the third control screw 505, and the first supporting part 507 and the second supporting part 508 are threadedly connected with the bi-directional screw structure.

[0041] When the two ends of the steel bar one 6 are respectively placed between the steel bar positioning point one of the first supporting part 507 and the second supporting part 508, the first supporting part 507 and the second supporting part 508 support the steel bar one 6 through the inclined surface, then the first control screw 804 is rotated to drive the two first linkage seats 402 to move close to each other, the two first moving frames 401 are driven to move close to each other in the process that the first linkage seats 402 move close to each other, and the two ends of the steel bar one 6 abut against the end positioning plate 503, so that the steel bar one 6 is supported and positioned on the steel bar positioning assembly one 4, and the steel bar two 7 is supported and positioned on the steel bar positioning assembly two 5 in the same control mode, at this time, the steel bar two 7 is above the steel bar one 6, then the control motor 506 on the steel bar positioning assembly two 5 is controlled to drive the third control screw 505 to rotate, so that each group of the first supporting part 507 and the second supporting part 508 on the steel bar positioning assembly two 5 move away from each other, and each steel bar two 7 is attached to the top of the steel bar one 6, so that the steel mesh is formed, the height of the position of the steel bar one 6 or the steel bar two 7 can be adjusted through the first supporting part 507 and the second supporting part 508 that can move close to each other, and the support and positioning of different types of steel bars can be met.

[0042] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and get the best results from the application. The application is only limited by the claims and their full scope and equivalents.

Claims

1. A steel mesh welding equipment based on PLC control, comprising a welding control mechanism (1); characterized in that, The horizontal conveying mechanism (2) is slidably arranged in the welding control mechanism (1), and a mesh positioning mechanism (3) is installed on the horizontal conveying mechanism (2); The welding control mechanism (1) comprises a welding control seat (101) arranged on a welding station, and a plurality of groups of welding heads (102) are installed at the bottom of the welding control seat (101), and each group of welding heads (102) is composed of two symmetrical welding heads (102); The mesh positioning mechanism (3) comprises a reinforcing steel bar positioning assembly one (4) and a reinforcing steel bar positioning assembly two (5), the reinforcing steel bar positioning assembly one (4) and the reinforcing steel bar positioning assembly two (5) are arranged in a cross shape, a plurality of reinforcing steel bar positioning points one are arranged on the reinforcing steel bar positioning assembly one (4), the reinforcing steel bar positioning points one are used for bearing and positioning reinforcing steel bars one (6), a plurality of reinforcing steel bar positioning points two are arranged on the reinforcing steel bar positioning assembly two (5), the reinforcing steel bar positioning points two are used for bearing and positioning reinforcing steel bars two (7), the reinforcing steel bar positioning points two are higher than the reinforcing steel bar positioning points one, and the reinforcing steel bars two (7) are vertically attached to the top of the reinforcing steel bars one (6) to form a plurality of welding points.

2. The steel mesh welding equipment based on PLC control according to claim 1, characterized in that, The welding control mechanism (1) further comprises a welding rack (103), a U-shaped support frame (104) is fixedly installed at the top of the welding rack (103), a fine-tuning hydraulic cylinder (105) is installed at the top of the U-shaped support frame (104), the welding control seat (101) is slidably arranged on the inner wall of the U-shaped support frame (104) and connected with the output end of the fine-tuning hydraulic cylinder (105), a first limiting groove (106) is formed in the inner bottom of the welding rack (103), and a horizontal conveying screw rod (107) is rotatably arranged on the inner side of the welding rack (103) and connected with a conveying control motor (108) on one side thereof.

3. The steel mesh welding equipment based on PLC control according to claim 2, characterized in that, Lower guide grooves (109) are formed in the opposite inner side walls of the welding rack (103), upper guide grooves (110) are arranged above the lower guide grooves (109), a first inclined guide groove (111) is communicatively arranged at the end of the lower guide groove (109) away from the conveying control motor (108), the first inclined guide groove (111) is in communication with the upper guide groove (110), a second inclined guide groove (112) is arranged on the side of the first inclined guide groove (111) close to the conveying control motor (108), and the second inclined guide groove (112) is communicatively arranged between the lower guide groove (109) and the upper guide groove (110).

4. The steel mesh welding equipment based on PLC control according to claim 3, characterized in that, The horizontal conveying mechanism (2) comprises a horizontal conveying seat (201) slidably arranged on the inner side of the welding rack (103) and connected with the first limiting groove (106), a screw rod adapting seat (202) is fixedly arranged at the top center of the horizontal conveying seat (201) and sleeved on the horizontal conveying screw rod (107), the screw rod adapting seat (202) is in threaded connection with the horizontal conveying screw rod (107), and guide pipes (203) are fixedly arranged at the top four corners of the horizontal conveying seat (201).

5. The steel mesh welding equipment based on PLC control according to claim 4, characterized in that, The mesh positioning mechanism (3) further comprises a lifting assembly (8); wherein the lifting assembly (8) comprises a lifting frame (801), the lifting frame (801) is provided with a first sliding channel (802) and a second sliding channel (803) communicating with the inner cavity thereof at the top, the first sliding channel (802) and the second sliding channel (803) are cross arranged, and the first sliding channel (802) and the second sliding channel (803) are cross arranged.

6. The steel mesh welding equipment based on PLC control according to claim 5, characterized in that, The lifting frame (801) is fixed with a guide rod (806) at the four corners of the bottom, the guide rod (806) is slidingly inserted in the corresponding guide pipe (203), and the guide rod (806) is fixedly installed with a limiting seat (807) on the side surface, and the limiting seat (807) is fixedly provided with a guide lifting rod (808) slidingly fitted in the lower guide channel (109).

7. The steel mesh welding equipment based on PLC control according to claim 6, characterized in that, The steel positioning assembly one (4) comprises two symmetrically arranged first moving frames (401), the first moving frame (401) is fixedly provided with a first linkage seat (402) slidingly fitted with the first sliding channel (802) at the bottom, and the first linkage seat (402) is sleeved on the first control screw (804) and is in threaded connection with the first control screw (804); The steel positioning assembly two (5) comprises two symmetrically arranged second moving frames (501), the second moving frame (501) is fixedly provided with a second linkage seat (502) slidingly fitted with the second sliding channel (803) at the bottom, and the second linkage seat (502) is sleeved on the second control screw (805) and is in threaded connection with the second control screw (805), and the first moving frame (401) and the second moving frame (501) are fixedly provided with an end positioning plate (503) inside.

8. The steel mesh welding equipment based on PLC control according to claim 7, characterized in that, The first moving frame (401) and the second moving frame (501) are provided with a second limiting channel (504) at the inner bottom, and the first moving frame (401) and the second moving frame (501) are rotatably provided with a third control screw (505) on the inner side, and the third control screw (505) is connected with a control motor (506) on one side thereof; The first moving frame (401) and the second moving frame (501) are provided with a plurality of groups of steel reinforcing bar supporting parts arrayed on the inner side, the steel reinforcing bar supporting part is composed of a first supporting part (507) and a second supporting part (508) symmetrically arranged, the second supporting part (508) is fixedly provided with a moving part (509) at the bottom, the moving part (509) and the first supporting part (507) are in sliding connection with the second limiting channel (504), the first supporting part (507) is provided with a moving opening (510) slidingly fitted with the second supporting part (508) on the surface, the third control screw (505) is provided with a bidirectional screw structure corresponding to the steel reinforcing bar supporting part on the side surface, and the first supporting part (507) and the second supporting part (508) are in threaded connection with the corresponding bidirectional screw structure.

9. A method of working a steel bar mesh welding apparatus based on claim 8, characterized in that, The method comprises the following steps: S01. When a certain number of steel bars (6) are supported and positioned on the steel bar positioning component (4), and a certain number of steel bars (7) are supported and positioned on the steel bar positioning component (5), the third adjusting screw (505) is driven to rotate by the adjusting motor (506) on the steel bar positioning component (5), so that each set of first support (507) and second support (508) on the steel bar positioning component (5) moves away from each other until each steel bar (7) is attached to the top of the steel bar (6), thus completing the composition of the steel mesh. S02. When the guide lifting rod (808) near the welding station slides along the lower guide channel (109) to the bottom of the first inclined guide channel (111), the guide lifting rod (808) away from the welding station slides synchronously to the bottom of the second inclined guide channel (112). As the horizontal conveying mechanism (2) continues to move, the guide lifting rod (808) slides upward along the first inclined guide channel (111) and the second inclined guide channel (112) respectively. During this process, the guide rod (806) slides upward along the guide tube (203), and the entire mesh positioning mechanism (3) bearing the steel mesh is gradually lifted until each guide lifting rod (808) slides into the upper guide channel (110). At this time, the entire mesh positioning mechanism (3) bearing the steel mesh is at its highest position. S03. Continue to control the entire mesh positioning mechanism (3) that supports the steel mesh to move forward until the row of welding points at the front end of the steel mesh is aligned with each group of welding heads (102). Control each group of welding heads (102) on the welding control seat (101) to descend to the set position through the fine adjustment hydraulic cylinder (105). At this time, the welding heads (102) on each group of welding heads (102) are aligned with both sides of the welding point. After the welding of each welding point at this position is completed through the welding head (102), the PLC control system first controls the fine adjustment hydraulic cylinder (105) to drive each group of welding heads (102) to move up and reset. S04. The PLC control system controls the horizontal conveying screw (107) to rotate a certain number of times, so that the entire steel mesh moves forward a fixed distance, so that the next row of welding points aligns with each group of welding heads (102). After welding is completed again, the PLC control system repeats the same instruction, so that each row of welding points can move forward and align with each group of welding heads (102). This continues until all welding points on the steel mesh are welded. The PLC control system controls the conveying control motor (108) to drive the horizontal conveying screw (107) to rotate in the opposite direction, so that the entire mesh positioning mechanism (3) that carries and positions the steel mesh returns to its initial position. After the welded steel mesh is removed, a new steel mesh can be assembled for welding.

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