Welding machine special for municipal park fence door machining

Abstract

The invention relates to the technical field of welding equipment, and particularly discloses a special welding machine for municipal park fence door machining, which comprises a rack, a sliding plate is fixedly connected to the bottom of the middle part of the inner side of the rack, placing grooves are formed in the front and rear ends of the inner side of the top of the rack, and a mounting plate is fixedly connected to the left side of the rack; a welding machine is fixedly connected to the top of the mounting plate, an equidistant assembly is arranged at the top of the sliding plate, a groove is formed in the top of the sliding plate, the equidistant assembly comprises a cross rod arranged above the rack, placing plates are slidably connected to the outer wall of the cross rod in a linear array mode, lifting sleeves are fixedly connected to the bottoms of the placing plates, and round rods are slidably connected to the bottoms of the lifting sleeves; the bottom of the round rod is fixedly connected with a small block, the outer wall of the small block is slidably connected into the groove, and through cooperation of the structures, the distances between the vertical stop rods can be equal, so that the distances between the vertical stop rods can be automatically controlled, the follow-up welding quality can be improved, and the quality of produced and machined fences is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a special welding machine for processing fence doors of municipal parks. Background Art

[0002] Municipal park fences can clearly define different areas within the park, such as play areas, rest areas, viewing areas, etc., which helps tourists better plan their tour routes. Fences can prevent tourists from mistakenly entering dangerous areas such as water areas, steep slopes or construction areas, thereby ensuring the personal safety of tourists.

[0003] In the process of making municipal park fences, traditional methods mostly rely on manual support or the use of tooling to clamp the horizontal and vertical bars one by one. The welding positioning and fixing steps in this process are quite cumbersome. The main challenge is that the distance between the vertical bars is difficult to control accurately, and errors often occur, which affects the welding quality and then the quality of the welded fence. More importantly, the entire operation process is time-consuming and inefficient. In order to solve these problems, we have specially designed a welding device for municipal park fences, aiming to optimize the above links and improve operation efficiency and quality. Summary of the invention

[0004] The purpose of the present invention is to provide a special welding machine for processing municipal park fence gates, which can make the distances between multiple vertical bars the same, so that the distances between the vertical bars can be automatically controlled, the quality of subsequent welding can be improved, and then the quality of the produced fences can be improved to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special welding machine for processing municipal park fence doors, comprising a frame, a sliding plate is fixedly connected to the bottom of the inner middle part of the frame, and placement grooves are provided at the front and rear ends of the top inner side of the frame, an equidistant component is provided on the top of the sliding plate, and a groove is provided on the top of the sliding plate. A mounting plate is fixedly connected to the left side of the frame, and a welding machine is fixedly connected to the top of the mounting plate. The equidistant component comprises a cross bar arranged above the frame, and a placement plate is slidably connected to the outer wall linear array of the cross bar, and a lifting sleeve is fixedly connected to the bottom of the placement plate, and a round rod is slidably connected to the bottom of the lifting sleeve, and a small block is fixedly connected to the bottom of the round rod, and the outer wall of the small block is slidably connected to the inside of the groove, and the outer walls of the multiple round rods are rotatably connected to two mutually intersecting straight plates, and the front and rear ends of two adjacent straight plates are close to each other. The hinge shafts are provided, and the front and rear ends of the two adjacent straight plates are rotatably connected to the hinge shafts.

[0006] Preferably, both front and rear ends of the sliding plate are fixedly connected to fixed plates, and the bottoms of the two hinge shafts in the middle are fixedly connected to the fixed plates.

[0007] Preferably, a limiting assembly is provided on the top of the round rod, and the limiting assembly includes a pushing frame fixedly connected to the top of the round rod, and the limiting assembly also includes a corrugated bag fixedly connected to the top of the inner side of the lifting sleeve, and the limiting assembly also includes circular grooves opened on both sides of the interior of the placing plate, and the interior of the circular groove is movably connected with a first piston plate, and a pipe fitting is fixedly inserted between the interior of the circular groove and the corrugated bag, a connecting frame is fixedly connected to a side of the first piston plate close to the middle part of the placing plate, a small tube is fixedly connected to a side of the connecting frame away from the first piston plate, and a top plate is fixedly connected to a side of the small tube away from the first piston plate, and a first spring is fixedly connected between the interior of the circular groove and the first piston plate.

[0008] Preferably, the bottom of the top plate is fixedly connected to a T-shaped frame in a linear array near the first piston plate, the bottom of the T-shaped frame is slidably connected to a sliding frame, the sliding frame is fixedly connected to a clamping plate on one side near the inside of the placement plate, and a second spring is fixedly connected between the T-shaped frame and the clamping plate.

[0009] Preferably, a side of the clamping plate close to the inside of the placement plate is rotatably connected with a circular shaft.

[0010] Preferably, correction components are provided at both the front and rear ends of the top of the frame, and the correction components include a curved frame slidably connected to the front and rear ends of the top of the frame, and a tilting block is fixedly connected to the top of the curved frame, and the tilting block is tilted near the inner part of the frame.

[0011] Preferably, both sides of the top of the frame are fixedly connected with electric telescopic rods, and the output shaft of the electric telescopic rod is fixedly connected to the bottom of the cross bar.

[0012] Preferably, a pressing assembly is arranged above the T-shaped frame, and the pressing assembly includes an annular groove opened on the side of the connecting frame away from the first piston plate, and an elastic membrane is fixedly connected to the inside of the annular groove. The pressing assembly also includes a vertical groove opened in the top plate, and the second piston plate is movably connected to the inside of the vertical groove. The middle part of the second piston plate is fixedly connected to a lifting rod, and the bottom of the lifting rod is fixedly connected to a descending plate.

[0013] Preferably, the interior of the second piston plate and the inner bottom of the vertical groove are both fixedly connected with magnetic rings, and the magnetic poles of the two magnetic rings on the sides close to each other are the same.

[0014] Preferably, both sides of the placement groove are slidably connected with pressure plates, and the sides of the two pressure plates away from each other are rotatably connected with adjustment bolts, and the outer walls of the adjustment bolts are threadedly connected to the frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the function of the equidistant component, the distances between multiple vertical bars can be made the same, so that the distances between the vertical bars can be automatically controlled, which can improve the quality of subsequent welding and thus improve the quality of the produced fence; 2. Through the function of the limit assembly, the vertical bar can be effectively limited and fixed, thereby reducing the deviation of the vertical bar during welding, which is conducive to further improving the quality of welding, thereby further improving the quality of the produced fence; 3. Through the action of the correction component, the end of the vertical baffle can be corrected and smoothly enter between the two cross baffles, which can facilitate the vertical baffle to smoothly enter the interior of the two cross baffles, thereby improving the efficiency of placing the vertical baffle and further improving the efficiency of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the overall structural view of the present invention; Figure 2 It is a schematic diagram of a half-section structure of the present invention; Figure 3 It is a schematic diagram of a half-section structure of a straight plate of the present invention; Figure 4 It is a schematic diagram of a half-section structure of the lifting sleeve of the present invention; Figure 5 It is a schematic diagram of a half-section structure of a placement plate of the present invention; Figure 6 It is a schematic diagram of the partial structure of the first spring of the present invention; Figure 7 For the present invention Figure 6 A magnified image of point A; Figure 8 It is a schematic diagram of the half-section structure of the splint of the present invention.

[0018] Description of reference numerals: 1. Frame; 2. Sliding plate; 3. Placement slot; 4. Equidistant assembly; 41. Crossbar; 42. Placement plate; 43. Lifting sleeve; 44. Round bar; 45. Small block; 46. Straight plate; 47. Fixed plate; 48. Articulated shaft; 5. Limiting assembly; 51. Pushing frame; 52. Bellows; 53. Round slot; 54. First piston plate; 55. Pipe fitting; 56. Connecting frame; 57. Small tube; 58. Top plate; 59. T-shaped frame; 510. Sliding plate Moving frame; 511, clamping plate; 512, second spring; 513, first spring; 514, round shaft; 6, correction assembly; 61, bending frame; 62, tilting block; 7, pressing assembly; 71, ring groove; 72, elastic membrane; 73, vertical groove; 74, second piston plate; 75, lifting rod; 76, descending plate; 77, magnetic ring; 8, adjusting bolt; 9, electric telescopic rod; 10, groove; 11, pressure plate; 12, mounting plate; 13, welding machine. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 5 The present invention provides a technical solution: a special welding machine for processing fence gates of municipal parks, comprising a frame 1, a sliding plate 2 is fixedly connected to the bottom of the inner middle part of the frame 1, a placement groove 3 is provided at both the front and rear ends of the inner top of the frame 1, an equidistant component 4 is provided on the top of the sliding plate 2, a groove 10 is provided on the top of the sliding plate 2, a mounting plate 12 is fixedly connected to the left side of the frame 1, a welding machine 13 is fixedly connected to the top of the mounting plate 12, the equidistant component 4 comprises a cross bar 41 arranged above the frame 1, a placement plate 42 is slidably connected to the outer wall linear array of the cross bar 41, and the placement plate 42 A lifting sleeve 43 is fixedly connected to the bottom, and a round rod 44 is slidably connected to the bottom of the lifting sleeve 43. A small block 45 is fixedly connected to the bottom of the round rod 44. The outer wall of the small block 45 is slidably connected to the inside of the groove 10. The outer walls of multiple round rods 44 are rotatably connected to two mutually intersecting straight plates 46. The front and rear ends of two adjacent straight plates 46 are close to each other and are provided with hinge shafts 48. The front and rear ends of two adjacent straight plates 46 are rotatably connected to the hinge shafts 48. The front and rear ends of the sliding plate 2 are fixedly connected to fixed plates 47, and the bottoms of the two hinge shafts 48 in the middle are fixedly connected to the fixed plates 47.

[0021] By adopting the above technical scheme, the placement groove 3 is adapted to the size of the fence. When in use, the two horizontal bars of the fence are placed from the inner side of the frame 1 into the placement grooves 3 at the front and rear ends, and the vertical bars to be welded in the fence are placed in the slots opened at the top of the placement plate 42. A plurality of straight plates 46 form a scissor structure, and two adjacent straight plates 46 are fixedly connected to the tops with a rotating frame, and a first electric push rod is rotatably connected between the two rotating frames. The output shaft of the first electric push rod is rotated to adjust the angles of the plurality of straight plates 46. When the angles of the plurality of straight plates 46 change, the overall length of the scissor structure formed by the plurality of straight plates 46 changes. Since the bottom of the middle hinge shaft 48 is fixedly connected to the fixed plate 47, when the angle of the straight plates 46 changes, the position of the middle part of the scissor structure formed by the plurality of straight plates 46 does not change.

[0022] It should be noted that when the angle of the straight plate 46 changes, the distance between the multiple round rods 44 changes. During this process, the small block 45 slides inside the placement groove 3, and the round rod 44 also moves accordingly. In this way, the lifting sleeve 43 can move with the placement plate 42, thereby moving the multiple vertical baffles. The vertical baffles can be placed in a suitable position for welding. Since the distances between adjacent hinge points are equal in the scissors-type structure, the distances between the multiple vertical baffles are the same. In this way, the distance between the vertical baffles can be automatically controlled, which can improve the quality of subsequent welding and thus improve the quality of the produced fence.

[0023] When the vertical guard bar is properly placed, the horizontal guard bar and the vertical guard bar of the fence are welded by the welding gun of the welding machine 13, and the cable of the welding machine 13 used to connect the main body and the welding gun is set longer, which is conducive to welding each intersection of the vertical guard bar and the horizontal guard bar.

[0024] Specifically, Figures 2 to 8As shown, a limiting component 5 is provided on the top of the round rod 44, and the limiting component 5 includes a push frame 51 fixedly connected to the top of the round rod 44, and the limiting component 5 also includes a corrugated bag 52 fixedly connected to the top of the inner side of the lifting sleeve 43, and the limiting component 5 also includes a circular groove 53 opened on both sides of the inside of the placement plate 42, and the inside of the circular groove 53 is movably connected with a first piston plate 54, and a pipe fitting 55 is fixedly inserted between the inside of the circular groove 53 and the corrugated bag 52, and the first piston plate 54 is fixedly connected to a connecting frame 56 on one side close to the middle part of the placement plate 42, and the connecting frame 56 is fixedly connected to a small tube 57 on the side away from the first piston plate 54. A top plate 58 is fixedly connected to the side of 57 away from the first piston plate 54, a first spring 513 is fixedly connected between the inside of the circular groove 53 and the first piston plate 54, a T-shaped frame 59 is fixedly connected to the bottom of the top plate 58 near the first piston plate 54 in a linear array, a sliding frame 510 is slidably connected to the bottom of the T-shaped frame 59, a clamping plate 511 is fixedly connected to the side of the sliding frame 510 near the inside of the placement plate 42, a second spring 512 is fixedly connected between the T-shaped frame 59 and the clamping plate 511, electric telescopic rods 9 are fixedly connected to both sides of the top of the frame 1, and the output shaft of the electric telescopic rod 9 is fixedly connected to the bottom of the cross bar 41.

[0025] By adopting the above technical solution, the size of the slot opened on the top of the placement plate 42 is larger than the size of the vertical blocking rod. After multiple vertical blocking rods are placed in the slot opened on the top of the placement plate 42, the output shaft of the electric telescopic rod 9 is contracted, so that the cross bar 41 moves downward, and then the multiple placement plates 42 and the lifting sleeve 43 move downward. When the lifting sleeve 43 moves downward, the push frame 51 gradually approaches the corrugated bag 52 and squeezes the corrugated bag 52, so that the corrugated bag 52 is compressed, and the medium inside the corrugated bag 52 enters the inside of the circular groove 53 through the pipe 55, so that the medium pressure inside the circular groove 53 increases. Thereby, the first piston plate 54 overcomes the elastic force of the first spring 513 and moves, so that the connecting frame 56 and the small tube 57 move toward the inner side of the placement plate 42, so that the top plate 58 and the T-shaped frame 59 move accordingly, so that the sliding frame 510 moves with the clamping plate 511 toward the position of the vertical baffle rod, thereby playing a role in clamping and limiting the vertical baffle rod. In this way, the vertical baffle rod can be effectively limited and fixed during welding, thereby reducing the deviation of the vertical baffle rod during welding, which is conducive to further improving the quality of welding, thereby further improving the quality of the produced fence.

[0026] It should be noted that when the clamping plate 511 approaches the vertical blocking rod and presses the vertical blocking rod, relative movement occurs between the sliding frame 510 and the T-shaped frame 59, and the second spring 512 is in a compressed state, providing an elastic force that can ensure the clamping effect on the vertical blocking rod.

[0027] When the output shaft of the electric telescopic rod 9 is extended, the cross bar 41 moves upward, thereby causing the plurality of placement plates 42 and the lifting sleeve 43 to move upward. Under the elastic force of the first spring 513 and the second spring 512, the structure inside the placement plate 42 is reset.

[0028] Specifically, Figure 1 to Figure 2 and Figures 7 and 8 As shown, correction components 6 are provided at both the front and rear ends of the top of the frame 1, and the correction components 6 include a bent frame 61 slidably connected to the front and rear ends of the top of the frame 1, and a tilting block 62 is fixedly connected to the top of the bent frame 61. The tilting block 62 is tilted near the inner part of the frame 1, and the side of the clamping plate 511 near the inside of the placement plate 42 is rotatably connected to a round shaft 514.

[0029] By adopting the above technical solution, a second electric push rod is arranged between the bottom of the bending frame 61 and the frame 1. Before the cross bar is inserted, the output shaft of the second electric push rod is in an extended state to facilitate the insertion of the cross bar. During welding, the output shaft of the second electric push rod contracts, and the inner bottom of the bending frame 61 serves to limit the cross bar. When welding is completed, the output shaft of the second electric push rod is extended to take out the welded fence.

[0030] When the installation of the horizontal baffle is completed, the end of the bent frame 61 is flush with the side of the horizontal baffle near the vertical baffle. If the ends of multiple vertical baffles are not aligned when placing the vertical baffles, when the lifting sleeve 43 moves downward with the placement plate 42, the vertical baffle moves downward. In the process of the vertical baffle moving downward, the ends are gradually aligned due to the inclination of the inclined block 62, thereby correcting the ends of the vertical baffles and smoothly entering between the two horizontal baffles. This makes it convenient for the vertical baffle to smoothly enter the interior of the two horizontal baffles, thereby improving the efficiency of placing the vertical baffles and thereby improving the efficiency of welding.

[0031] The design of the circular shaft 514 facilitates the vertical blocking rod to slide smoothly inside the placement plate 42 when the end portion is corrected by the tilting block 62 .

[0032] Specifically, Figures 2 to 8As shown, a pressing assembly 7 is arranged above the T-shaped frame 59, and the pressing assembly 7 includes an annular groove 71 opened on the side of the connecting frame 56 away from the first piston plate 54, and an elastic membrane 72 is fixedly connected inside the annular groove 71. The pressing assembly 7 also includes a vertical groove 73 opened in the top plate 58, and a second piston plate 74 is movably connected inside the vertical groove 73. A lifting rod 75 is fixedly connected to the middle part of the second piston plate 74, and a descending plate 76 is fixedly connected to the bottom of the lifting rod 75. A magnetic ring 77 is fixedly connected to the inner bottom of the second piston plate 74 and the vertical groove 73, and the magnetic poles of the two magnetic rings 77 on the side close to each other are the same. Balls are rotatably connected to the inner bottom of the placing plate 42 and the bottom of the descending plate 76 to ensure that the vertical blocking rod can slide inside the placing plate 42 when correcting the end. The annular groove 71, the small tube 57 and the vertical groove 73 are all connected inside.

[0033] By adopting the above technical scheme, when the placement plate 42 and the lifting sleeve 43 move downward, the connecting frame 56, the top plate 58 and the T-shaped frame 59 move, the clamping plate 511 clamps the vertical block rod and the second spring 512 is compressed, the top plate 58 is above the vertical block rod, and the connecting frame 56 moves toward the inner side of the placement plate 42 near the elastic membrane 72 until the elastic membrane 72 is limited by the placement plate 42 and compressed. At this time, the medium inside the annular groove 71 enters the inside of the annular groove 71, and enters the inside of the vertical groove 73 and is located above the second piston plate 74, so that the second piston plate 74 moves downward, and the lifting rod 75 and the descending plate 76 move downward to clamp the vertical block rod, thereby further improving the stability of clamping the vertical block rod and improving the quality of welding.

[0034] Furthermore, when the end of the vertical blocking rod is calibrated, the vertical blocking rod is prevented from tilting when contacting the inclined surface of the tilting block 62, thereby improving the clamping effect.

[0035] When the placing plate 42 and the lifting sleeve 43 move upward, under the effect of the repulsion of the two magnetic rings 77, the lifting rod 75 and the descending plate 76 move upward to reset.

[0036] Specifically, Figure 1 and Figure 2 As shown, both sides of the placement groove 3 are slidably connected with pressure plates 11, and the sides of the two pressure plates 11 that are away from each other are rotatably connected with adjusting bolts 8, and the outer wall of the adjusting bolts 8 is threadedly connected to the frame 1.

[0037] By adopting the above technical solution, after the two cross bars of the fence are placed in the placement grooves 3 at the front and rear ends from the inner side of the frame 1, the adjusting bolts 8 are tightened by an external wrench, so that the pressure plate 11 moves to clamp and limit the cross bars, thereby preventing the cross bars from shifting during welding, thereby avoiding affecting the quality of welding.

[0038] Working principle: the placement slot 3 is adapted to the size of the fence. When in use, the two horizontal bars of the fence are placed from the inner side of the frame 1 into the placement slots 3 at the front and rear ends, and the vertical bars to be welded in the fence are placed into the slots opened on the top of the placement plate 42. A plurality of straight plates 46 form a scissor structure, and two adjacent straight plates 46 are fixedly connected to a rotating frame on the top, and a first electric push rod is rotatably connected between the two rotating frames. The angles of the plurality of straight plates 46 can be adjusted by rotating the output shaft of the first electric push rod. When the angles of the plurality of straight plates 46 change, the overall length of the scissor structure formed by the plurality of straight plates 46 changes. Since the bottom of the hinge shaft 48 in the middle is fixedly connected to the fixed plate 47, when the angles of the straight plates 46 change, the plurality of straight plates 46 The position of the middle part of the scissor-type structure does not change, and when the angle of the straight plate 46 changes, the distance between the multiple round rods 44 changes. During this process, the small block 45 slides inside the placement groove 3, and the round rod 44 also moves therewith, so that the lifting sleeve 43 can move with the placement plate 42, thereby allowing the multiple vertical guard rods to move, and the vertical guard rods can be placed in a suitable position for welding. Since the distances between adjacent hinge points are equal in the scissor-type structure, the distances between the multiple vertical guard rods are the same, so the distances between the vertical guard rods can be automatically controlled, which can improve the quality of subsequent welding, and thus improve the quality of the produced fence. During welding, the connection between the vertical guard rod and the horizontal guard rod is welded by the welding gun of the welding machine 13.

[0039] The size of the slotted hole at the top of the placement plate 42 is larger than the size of the vertical blocking rod. After multiple vertical blocking rods are placed in the slotted hole at the top of the placement plate 42, the output shaft of the electric telescopic rod 9 is contracted, causing the cross bar 41 to move downward, thereby causing multiple placement plates 42 and the lifting sleeve 43 to move downward. When the lifting sleeve 43 moves downward, the push frame 51 gradually approaches the corrugated bag 52 and squeezes the corrugated bag 52, causing the corrugated bag 52 to be compressed, and the medium inside the bellows 52 enters the circular groove 53 through the pipe 55, causing the medium pressure inside the circular groove 53 to increase, thereby causing the first piston plate 54 to overcome the elastic force of the first spring 513 and move, causing the connecting frame 56 and the small tube 57 to move toward the inner side of the placement plate 42, so that the top plate 58 and the T-shaped frame 59 move accordingly, causing the sliding frame 510 to move with the clamping plate 511 to the position of the vertical blocking rod, thereby playing a role in clamping and limiting the vertical blocking rod. In this way, the vertical blocking rod can be effectively limited and fixed during welding, thereby reducing the deviation of the vertical blocking rod during welding.

[0040] When the installation of the horizontal baffle is completed, the end of the bent frame 61 is flush with the side of the horizontal baffle near the vertical baffle. If the ends of multiple vertical baffles are not aligned when the vertical baffles are placed, when the lifting sleeve 43 moves downward with the placement plate 42, the vertical baffle moves downward. In the process of the vertical baffle moving downward, the ends are gradually aligned due to the inclination of the inclined block 62, thereby realizing the correction of the ends of the vertical baffles and smoothly entering between the two horizontal baffles, which makes it convenient for the vertical baffle to smoothly enter the interior of the two horizontal baffles.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding machine for municipal park fence gate processing, comprising a frame (1), characterized in that: A sliding plate (2) is fixedly connected to the bottom of the inner middle part of the frame (1), placement grooves (3) are provided at both the front and rear ends of the inner top of the frame (1), an equidistant component (4) is provided on the top of the sliding plate (2), a groove (10) is provided on the top of the sliding plate (2), a mounting plate (12) is fixedly connected to the left side of the frame (1), and a welding machine (13) is fixedly connected to the top of the mounting plate (12); The equidistant component (4) comprises a cross bar (41) arranged above the frame (1); the outer wall of the cross bar (41) is slidably connected to a placement plate (42) in a linear array; the bottom of the placement plate (42) is fixedly connected to a lifting sleeve (43); the bottom of the lifting sleeve (43) is slidably connected to a round rod (44); the bottom of the round rod (44) is fixedly connected to a small block (45); the outer wall of the small block (45) is slidably connected to the inside of the groove (10); the outer walls of the plurality of round rods (44) are rotatably connected to two mutually intersecting straight plates (46); the front and rear ends of two adjacent straight plates (46) are each provided with a hinge shaft (48) near each other; the front and rear ends of the two adjacent straight plates (46) are rotatably connected to the hinge shaft (48).

2. The municipal park fence gate processing special welding machine according to claim 1 is characterized by: The front and rear ends of the sliding plate (2) are fixedly connected to a fixed plate (47), and the bottoms of the two hinge shafts (48) in the middle are fixedly connected to the fixed plate (47).

3. The municipal park fence gate processing special welding machine according to claim 1 is characterized by: A limit assembly (5) is provided at the top of the round rod (44). The limit assembly (5) comprises a push frame (51) fixedly connected to the top of the round rod (44). The limit assembly (5) further comprises a bellows (52) fixedly connected to the top of the inner side of the lifting sleeve (43). The limit assembly (5) further comprises circular grooves (53) provided on both sides of the interior of the placement plate (42). The interior of the circular groove (53) is movably connected to a first piston plate (54). A pipe fitting (55) is fixedly inserted between the interior of the circular groove (53) and the bellows (52). A connecting frame (56) is fixedly connected to a side of the first piston plate (54) close to the middle part of the placement plate (42). A small tube (57) is fixedly connected to a side of the connecting frame (56) away from the first piston plate (54). A top plate (58) is fixedly connected to a side of the small tube (57) away from the first piston plate (54). A first spring (513) is fixedly connected between the interior of the circular groove (53) and the first piston plate (54).

4. A welding machine for municipal park fence gate processing according to claim 3, characterized in that: A T-shaped frame (59) is fixedly connected in a linear array at one side of the bottom of the top plate (58) close to the first piston plate (54), a sliding frame (510) is slidably connected at the bottom of the T-shaped frame (59), a clamping plate (511) is fixedly connected at one side of the sliding frame (510) close to the inside of the placement plate (42), and a second spring (512) is fixedly connected between the T-shaped frame (59) and the clamping plate (511).

5. The municipal park fence gate processing special welding machine according to claim 4 is characterized by: One side of the clamping plate (511) close to the inside of the placement plate (42) is rotatably connected to a circular shaft (514).

6. The municipal park fence gate processing special welding machine according to claim 1 is characterized by: Correction assemblies (6) are provided at both the front and rear ends of the top of the frame (1), and the correction assembly (6) comprises a bent frame (61) slidably connected to the front and rear ends of the top of the frame (1), and a tilting block (62) is fixedly connected to the top of the bent frame (61), and the tilting block (62) is tilted and arranged close to the inner side of the frame (1).

7. The municipal park fence gate processing special welding machine according to claim 1 is characterized by: Electric telescopic rods (9) are fixedly connected to both sides of the top of the frame (1), and the output shaft of the electric telescopic rod (9) is fixedly connected to the bottom of the crossbar (41).

8. The municipal park fence gate processing special welding machine according to claim 4 is characterized by: A pressing assembly (7) is arranged above the T-shaped frame (59), and the pressing assembly (7) comprises an annular groove (71) provided on a side of the connecting frame (56) away from the first piston plate (54), and an elastic membrane (72) is fixedly connected inside the annular groove (71). The pressing assembly (7) further comprises a vertical groove (73) provided inside the top plate (58), and a second piston plate (74) is movably connected inside the vertical groove (73), and a lifting rod (75) is fixedly connected to the middle portion of the second piston plate (74), and a descending plate (76) is fixedly connected to the bottom of the lifting rod (75).

9. The municipal park fence gate processing special welding machine according to claim 8, characterized in that: The interior of the second piston plate (74) and the inner bottom of the vertical groove (73) are both fixedly connected with magnetic rings (77), and the magnetic poles of the two magnetic rings (77) on the sides close to each other are the same.

10. A welding machine for municipal park fence gate processing according to claim 9, characterized in that: Both sides of the interior of the placement groove (3) are slidably connected to a pressure plate (11), and the sides of the two pressure plates (11) that are away from each other are rotatably connected to an adjustment bolt (8), and the outer wall of the adjustment bolt (8) is threadedly connected to the frame (1).

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