Automatic welding device for steel grating machining

Abstract

The invention relates to the technical field of steel grating machining, in particular to a steel grating machining automatic welding device which comprises a pressure welding mechanism used for welding flat steel and a transverse rod and a conveying mechanism used for conveying the flat steel when the flat steel is welded, lifting air cylinders are arranged on the two sides of the pressure welding mechanism, and supporting plates are installed on the lifting air cylinders; the two supporting plates are used for supporting and positioning the two ends of the cross rod when the two ends of the cross rod are welded. According to the automatic welding device for steel grating machining, through the arranged moving block and the stretching and positioning mechanism, when a steel grating and twisted steel are welded, on one hand, the stretching and positioning mechanism supports two transverse rods on the stretching and positioning mechanism, and meanwhile the stretching and positioning effects on the two transverse rods on the stretching and positioning mechanism are achieved; the phenomenon that the transverse rod vibrates when being placed at the stretching positioning mechanism is prevented, so that the welding precision between the flat steel and the transverse rod is guaranteed, and the production quality of the steel grating is further guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel grating processing, and in particular to an automatic welding device for steel grating processing. Background Art

[0002] Steel grating is also known as mesh grille. It is a kind of steel product that is made of flat steel and cross bars (twisted square steel, square steel, round steel, flat steel, etc.) arranged crosswise at a certain interval and welded into a square grid in the middle. Steel grating is mainly used for ditch covers, steel structure platform plates, steel ladder treads, etc. The cross bars are generally made of twisted square steel. Steel grating is generally made of carbon steel, and the surface is hot-dip galvanized to prevent oxidation. It can also be made of stainless steel. Steel grating has ventilation, lighting, heat dissipation, anti-skid, explosion-proof and other properties.

[0003] At present, when welding the existing steel grating, the flat steel is first placed in the mold manually, and then the mold is moved mechanically to move the flat steel to directly under the welding head of the pressure welding machine. At the same time, the cross bar is also transmitted to the support fixture directly under the welding head, and the welding head is pressed down to weld the cross bar and the flat steel. However, in this process, the manipulator outside the welding head places the two cross bars on the support fixture at an instant. Due to the influence of its own gravity, the cross bar will shake relatively, resulting in welding offset between the cross bar and multiple flat steels when the welding head is pressed down for welding, affecting the welding accuracy. At the same time, when welding between the cross bar and the flat steel, the length of the cross bar is greater than the length formed between the multiple flat steels. Therefore, after the welding is completed, the two ends of the cross bar that are not welded to the flat steel will be bent due to the welding heat pressure. As the welding transmission of the steel grating, the more bent cross bar residues at both ends of the steel grating will affect the transmission of the steel grating. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic welding device for processing steel gratings 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: an automatic welding device for processing steel gratings, comprising a pressure welding mechanism for welding between flat steel and cross bars and a conveying mechanism for conveying the flat steel during welding, a lifting cylinder is provided on both sides of the pressure welding structure, and a support plate is installed on the lifting cylinder, and the two support plates are used to support and position the two ends of the cross bar during welding, and also include:

[0006] A moving block, wherein the moving block is slidably connected to the supporting plate;

[0007] A stretching and positioning mechanism, which is installed at both ends of the moving block and is used to stretch and position the cross bars when welding the two cross bars to a plurality of flat steels;

[0008] A moving mechanism, which is mounted on the support plate and is used to drive the moving block;

[0009] The residual material collecting mechanism is located above the moving block, the stretching positioning mechanism shears the redundant cross bars after welding, and the residual material collecting mechanism collects the sheared residual materials.

[0010] Wherein, the moving mechanism comprises a support block mounted on one end of the support plate close to the pressure welding mechanism, and a support frame is fixedly mounted on the other end of the support plate;

[0011] A moving screw is rotatably connected between the support block and the support frame, and the moving block is threadedly sleeved on the outside of the moving screw. A hollow cavity is provided inside the support plate, and a driving mechanism for driving the moving screw is installed in the hollow cavity.

[0012] The stretching positioning mechanism comprises two support frames fixedly mounted at both ends of the moving block, and the top of the support frame is open-shaped, a support shaft is fixedly connected to the bottom of the support frame opening, a first clamping block is fixedly connected to the support shaft, and a groove is provided at the bottom of the first clamping block;

[0013] The support shaft is also rotatably connected to a second clamping block;

[0014] The first clamping block and the second clamping block are both provided with arc grooves, and the cross bar is clamped and pulled through the arc grooves;

[0015] A shearing knife is installed on the top of the first clamping block and the second clamping block on the side close to each other;

[0016] A connecting piece is provided between the two second clamping blocks, and a pushing mechanism for pushing the connecting piece is provided at the support frame. The stretching and positioning mechanism is provided to achieve the function of stretching and positioning the cross bar.

[0017] Wherein, the sides of the first clamping block and the second clamping block that are close to each other are both arranged with inclined surfaces, so that the two second clamping blocks can clamp the cross bar through the bottom.

[0018] Among them, the connecting member includes two positioning shafts fixedly installed on the two second clamping blocks respectively, both ends of the positioning shafts are rotatably connected with connecting support rods, the other ends of the two connecting support rods at the two second clamping blocks are rotatably connected to the connecting shafts, both ends of the two connecting shafts are fixedly connected with fixed support rods, and a pushing block is fixedly connected between the four fixed support rods. The pushing block is connected to the pushing mechanism, and the function of connecting the two second clamping blocks is realized through the connecting member.

[0019] Wherein, the pushing mechanism comprises a telescopic member connected to the pushing block, one end of the telescopic member is connected to a lifting block, a moving groove is provided on the support frame, and the lifting block slides through the moving groove;

[0020] A fixing frame is installed outside the support frame, and an adjusting mechanism for driving the lifting block is installed on the fixing frame. The height of the pushing block can be adjusted through the provided pushing mechanism.

[0021] Among them, the telescopic part includes a sliding rod fixedly installed on one side of the pushing block, two guide strips are fixedly installed on the outside of the sliding rod, one end of the sliding rod and the outsides of the two guide strips are slidably sleeved with a sliding sleeve, and the sliding sleeve is fixedly connected to the lifting block, and the pushing block is connected through the telescopic part.

[0022] Wherein, the adjustment mechanism comprises a protective shell fixedly mounted on a fixing frame, a rotating motor is mounted inside the protective shell, an output end of the rotating motor passes through the protective shell and is fixedly connected to a rotating plate, and the output end of the rotating motor is rotatably connected to the protective shell;

[0023] One end of the rotating plate away from the protective shell is fixedly connected to a rotating rod, a lifting frame is slidably sleeved on the outer side of the rotating rod, and the lifting frame is fixedly connected to the lifting block. Through the provided adjustment mechanism, the height of the lifting block relative to the support frame can be adjusted.

[0024] Wherein, the residual material collecting mechanism comprises a positioning frame located above the moving block, and a collecting piece for collecting one end of the sheared cross bar is installed on the positioning frame;

[0025] The two ends of the positioning frame are fixedly connected with extension frames, and the bottoms of the two extension frames are fixedly connected with positioning blocks;

[0026] A fixed base is slidably connected between the two positioning blocks, the fixed base is fixedly installed on the ground, and a synchronizing member for synchronously driving the two positioning blocks is installed on the fixed base;

[0027] A collecting frame is provided on the inner side of the two extension frames. The collecting frame is located on the ground and is used to collect the residual materials. The residual materials can be collected by the residual materials collecting mechanism.

[0028] Wherein, the collecting member comprises two sheet collecting blocks slidably connected to the positioning frame, and a guide groove is provided at the bottom of the positioning frame and corresponding to the positions of the two sheet collecting blocks, and the two sheet collecting blocks slide through the guide groove;

[0029] The bottom of the receiving block extends to below the positioning frame and is fixedly mounted with an electromagnet block;

[0030] An electric push rod is installed on the top of the positioning frame, and a push plate is fixedly connected to the output end of the electric push rod. The bottom of the push plate is rotatably connected to two push support rods, and the two push support rods are rotatably connected to the two receiving blocks respectively, so as to realize the function of collecting the sheared cross bars through the provided collecting piece.

[0031] The present invention has at least the following beneficial effects:

[0032] 1. When the present invention is in use, through the provided moving block and the stretching positioning mechanism, when welding between the steel grating and the twisted steel, on the one hand, the stretching positioning mechanism can realize the function of supporting the two cross bars thereon and stretching and positioning the two cross bars thereon, thereby preventing the vibration of the cross bars placed at the stretching positioning mechanism, thereby ensuring the welding accuracy between the flat steel and the cross bars, and further ensuring the production quality of the steel grating.

[0033] 2. When the present invention is in use, the stretching positioning mechanism is provided, which can not only stretch the cross bar, but also, after the welding between the cross bar and a plurality of flat steels is completed, the cross bar can be subjected to heat pressing to reduce the hardness of its end portion. The two shearing knives at the stretching positioning mechanism can shear the two ends of the cross bar bent after welding, thereby ensuring the subsequent production and processing of the steel grating.

[0034] 3. The residual material collecting mechanism provided in the present invention can collect the residual materials after the bending positions at both ends of the cross bar are sheared because the cross bar is made of iron material. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a top view of the overall structure of the present invention;

[0037] Figure 3 It is a side view of the overall structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the lifting cylinder structure of the present invention;

[0039] Figure 5 It is a schematic diagram of the extension frame structure of the present invention;

[0040] Figure 6 This is a schematic diagram of the collection frame structure of the present invention;

[0041] Figure 7 This is a schematic diagram of the support plate structure of the present invention;

[0042] Figure 8 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0044] Fig.10 It is a schematic diagram of the structure of the mobile block of the present invention;

[0045] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure of the middle A area;

[0046] Fig.12 This is a schematic diagram of the support frame structure of the present invention;

[0047] Fig.13 This is a schematic diagram of the structure of the sheet collecting block of the present invention;

[0048] Fig.14 This is a schematic diagram of the positioning frame structure of the present invention.

[0049] In the figure: 1-pressure welding mechanism; 2-transmission mechanism; 3-lifting cylinder; 31-support plate; 4-moving block; 5-stretching positioning mechanism; 51-support frame; 52-support shaft; 53-first clamping block; 54-second clamping block; 55-arc groove; 56-shear knife; 57-connecting piece; 571-positioning shaft; 572-connecting support rod; 573-connecting shaft; 574-fixed support rod; 575-pushing block; 58-pushing mechanism; 581-telescopic member; 5811-sliding rod; 5812-guide strip; 5813-sliding sleeve; 582-lifting block; 583-fixed frame; 6-moving mechanism; 61-support frame; 611-moving groove; 62-moving screw rod; 63-support block; 64-driving mechanism; 641-driving driving motor; 642-first driving gear; 643-second driving gear; 7-residue collecting mechanism; 71-positioning frame; 711-guide groove; 72-collecting piece; 721-receiving block; 722-electromagnet block; 723-electric push rod; 724-pushing plate; 725-pushing support rod; 73-extension frame; 74-positioning block; 75-fixed base; 76-synchronizing piece; 761-synchronizing screw rod; 762-synchronizing gear; 763-synchronizing belt; 764-synchronizing motor; 77-collecting frame; 8-adjusting mechanism; 81-protective shell; 82-rotating motor; 83-rotating plate; 84-rotating rod; 85-lifting frame; 9-buffer spring; 91-arc plate; 92-connecting ear; 93-buffer shaft; 94-buffer block. DETAILED DESCRIPTION

[0050] 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.

[0051] Embodiment 1

[0052] See also Figures 1 to 9 and Figure 12 to Figure 14 An automatic welding device for processing steel gratings includes a pressure welding mechanism 1 for welding between flat steel and cross bars and a conveying mechanism 2 for conveying the flat steel during welding. Lifting cylinders 3 are provided on both sides of the pressure welding structure, and support plates 31 are installed on the lifting cylinders 3. The two support plates 31 are used to support and position the two ends of the cross bars during welding. The device also includes:

[0053] A moving block 4, the moving block 4 is slidably connected to the support plate 31;

[0054] A stretching and positioning mechanism 5, which is installed at both ends of the moving block 4, and is used to stretch and position the cross bars when welding two cross bars and a plurality of flat steels;

[0055] A moving mechanism 6, which is mounted on the support plate 31 and is used to drive the moving block 4;

[0056] The moving mechanism 6 includes a support block 63 mounted on one end of the support plate 31 close to the pressure welding mechanism 1, and a support frame 61 is fixedly mounted on the other end of the support plate 31;

[0057] A moving screw 62 is rotatably connected between the support block 63 and the support frame 61, and the moving block 4 is threadedly sleeved on the outside of the moving screw 62. A hollow cavity is provided inside the support plate 31, and a driving mechanism 64 for driving the moving screw 62 is installed in the hollow cavity;

[0058] The driving mechanism 64 includes a driving motor 641 installed inside the hollow cavity, and the output end of the driving motor 641 is fixedly connected to the first driving gear 642, and the outer side of the first driving gear 642 is meshingly connected to the second driving gear 643, and the second driving gear 643 is fixedly sleeved on the outer side of one end of the moving screw rod 62, so that the first driving gear 642 drives the second driving gear 643 to rotate through the operation of the driving motor 641, and further causes the moving screw rod 62 to rotate between the support block 63 and the support frame 61.

[0059] The stretching positioning mechanism 5 includes two support frames 51 fixedly mounted at both ends of the moving block 4, and the top of the support frame 51 is open-type, and a support shaft 52 is fixedly connected to the bottom of the opening of the support frame 51, and a first clamping block 53 is fixedly connected to the support shaft 52, that is, the first clamping block 53 is fixedly mounted inside the support frame 51, and a groove is provided at the bottom of the first clamping block 53, and the bottom of the second clamping block 54 extends to the groove at the bottom of the first clamping block 53, and passes through the groove at the bottom of the first clamping block 53, so as not to affect the rotation of the second clamping block 54;

[0060] The support shaft 52 is also rotatably connected to a second clamping block 54. The sides of the first clamping block 53 and the second clamping block 54 that are close to each other are both inclined. Therefore, before welding the cross bar, the cross bar is prevented from being between the first clamping block 53 and the second clamping block 54 by the manipulator. In this state, the opening formed at the top of the first clamping block 53 and the second clamping block 54 is relatively large, so as not to affect the downward movement of the cross bar.

[0061] The first clamping block 53 and the second clamping block 54 are both provided with arc grooves 55, and the cross bar is clamped and pulled through the arc grooves 55. At the same time, as a preferred embodiment, a rubber pad can also be installed at the arc groove 55, so as to protect the cross bar when it is stretched;

[0062] A shearing knife 56 is installed on the top of the first clamping block 53 and the second clamping block 54 on the side close to each other. In this embodiment, since the first clamping block 53 is relatively fixedly installed on the support frame 51, the shearing knife 56 on the second clamping block 54 and the shearing knife 56 on the first clamping block 53 can shear the redundant cross bar after welding through the rotation of the second clamping block 54. Therefore, the shearing knife 56 on the second clamping block 54 and the shearing knife 56 on the first clamping block 53 are designed to cooperate with each other, so as to achieve the effect of stably shearing the cross bar.

[0063] A connecting member 57 is provided between the two second clamping blocks 54, and a pushing mechanism 58 for pushing the connecting member 57 is provided at the support frame 61. The connecting member 57 includes two positioning shafts 571 respectively fixedly mounted on the two second clamping blocks 54, and both ends of the positioning shafts 571 are rotatably connected to connecting support rods 572. The other ends of the two connecting support rods 572 at the two second clamping blocks 54 are rotatably connected to connecting shafts 573. Both ends of the two connecting shafts 573 are fixedly connected to fixed support rods 574. A pushing block 575 is fixedly connected between the four fixed support rods 574, and the pushing block 575 is connected to the pushing mechanism 58.

[0064] The pushing mechanism 58 includes a telescopic member 581 connected to the pushing block 575, one end of the telescopic member 581 is connected to a lifting block 582, the telescopic member 581 includes a slide bar 5811 fixedly installed on one side of the pushing block 575, two guide bars 5812 are fixedly installed on the outer side of the slide bar 5811, one end of the slide bar 5811 and the outer sides of the two guide bars 5812 are slidably sleeved with a slide sleeve 5813, the slide sleeve 5813 is fixedly connected to the lifting block 582, a moving groove 611 is provided on the support frame 61, and the lifting block 582 slides through the moving groove 611;

[0065] A fixing frame 583 is installed outside the supporting frame 61 , and an adjusting mechanism 8 for driving the lifting block 582 is installed on the fixing frame 583 .

[0066] The adjustment mechanism 8 includes a protective shell 81 fixedly mounted on the fixing frame 583, a rotating motor 82 is installed inside the protective shell 81, an output end of the rotating motor 82 passes through the protective shell 81 and is fixedly connected to a rotating plate 83, and the output end of the rotating motor 82 is rotatably connected to the protective shell 81;

[0067] One end of the rotating plate 83 away from the protective shell 81 is fixedly connected to a rotating rod 84 , and a lifting frame 85 is slidably sleeved on the outer side of the rotating rod 84 . The lifting frame 85 is fixedly connected to the lifting block 582 .

[0068] Specific implementation process: When the pressure welding mechanism 1 performs hot pressure welding between the cross bar and the flat steel, the manipulator moves the two cross bars to the top between the two support plates 31. At this time, the opening formed between the first clamping block 53 and the second clamping block 54 is the largest, which does not affect the placement of the cross bar. Subsequently, the corresponding cross bar is placed between the two groups of first clamping blocks 53 and second clamping blocks 54, and while being placed, the rotating motor 82 is operated to rotate the rotating plate 83. When the rotating plate 83 rotates, it drives the lifting frame 85 to move synchronously through the rotating rod 84. Since the lifting frame 85 is limited between the lifting block 582 and the support frame 61, Under the action of the position, the lifting block 582 is moved upward relative to the support frame 61. When the lifting block 582 is moved upward, the push block 575 is driven to move upward through the telescopic member 581. The push block 575 passes through the four fixed support rods 574 thereon, and then pulls the four connecting support rods 572. When the connecting support rods 572 are pulled, the second clamping block 54 thereon is rotated by a certain angle with the support shaft 52 as the center. When the cross bar moves to the arc groove 55, the first clamping block 53 and the second clamping block 54 clamp one end of the cross bar through the arc groove 55 thereon.

[0069] Subsequently, the driving mechanisms 64 on the two support plates 31 operate respectively, so that the two moving screw rods 62 on the two support plates 31 rotate in opposite directions, and when the moving screw rods 62 rotate, a driving force is provided to the moving block 4, and then due to the limiting action of the support block 63, the two moving blocks 4 are further moved in opposite directions, and then the two groups of first clamping blocks 53 and second clamping blocks 54 drive the cross bars thereon to move in opposite directions, so as to achieve the effect of quickly stretching and tightening the two cross bars directly below the welding head, and prevent the cross bars from shaking due to the influence of their own gravity, so that when the pressure welding mechanism 1 operates and the welding head presses down to perform hot pressure welding between the two cross bars and the plurality of flat steels, the two telescopic cylinders operate synchronously, and the two cross bars move down to the plurality of flat steels, and at the same time, when the welding head performs hot pressure welding between the two cross bars and the plurality of flat steels, the rotating motor 82 operates to move the lifting block 582 downward, so that the cross bar is separated from the second clamping block 54, and at this time, the cross bar is not clamped during the hot pressure welding process;

[0070] At the same time, the output ends of the two telescopic cylinders continue to retract. At this time, the ends of the two ends of the cross bar become soft and the hardness decreases due to the heat pressure of the welding head. Then, as the two support blocks 63 move downward, the shearing knives 56 at the first clamping block 53 and the second clamping block 54 move to the outside of the cross bar. Subsequently, the rotating motor 82 is operated to make the shearing knife 56 at the second clamping block 54 move along the shearing knife 56 at the first clamping block 53, thereby achieving the effect of shearing the ends of the cross bar after hot pressing.

[0071] The residual material collecting mechanism 7 is located above the moving block 4. The stretching positioning mechanism 5 shears the redundant crossbar after welding, and the residual material collecting mechanism 7 collects the sheared residual material. The residual material collecting mechanism 7 includes a positioning frame 71 located above the moving block 4. A collecting member 72 for collecting one end of the sheared crossbar is installed at the positioning frame 71;

[0072] The two ends of the positioning frame 71 are fixedly connected with extension frames 73, and the bottoms of the two extension frames 73 are fixedly connected with positioning blocks 74;

[0073] A fixed base 75 is slidably connected between the two positioning blocks 74, and the fixed base 75 is fixedly installed on the ground. A synchronous member 76 for synchronously driving the two positioning blocks 74 is installed on the fixed base 75. The synchronous member 76 is a synchronous screw rod 761 that is respectively rotatably connected to the fixed base 75, and the two positioning blocks 74 are respectively threadedly sleeved on the outside of the synchronous screw rod 761, and the synchronous screw rod 761 is located on one side of the fixed base 75 and is fixedly connected with a synchronous gear 762, and a synchronous belt 763 is transmission-connected between the two synchronous gears 762, and a synchronous motor 764 for driving one of the synchronous gears 762 is installed on the fixed base 75;

[0074] Thus, the synchronous motor 764 operates, so that the two synchronous gears 762 rotate synchronously under the transmission action of the synchronous belt 763, so that the two synchronous screw rods 761 rotate synchronously, and when the synchronous screw rods 761 rotate, the driving force of the positioning block 74 is provided, and because the positioning block 74 is limited by the fixed base 75, the two positioning blocks 74 move synchronously relative to the fixed base 75;

[0075] A collecting frame 77 is disposed inside the two extension frames 73 . The collecting frame 77 is located on the ground and is used to collect the residual materials.

[0076] The collecting member 72 includes two sheet collecting blocks 721 slidably connected to the positioning frame 71 . A guide groove 711 is provided at the bottom of the positioning frame 71 and corresponding to the two sheet collecting blocks 721 . The two sheet collecting blocks 721 slide through the guide groove 711 .

[0077] The bottom of the receiving block 721 extends to below the positioning frame 71 and is fixedly mounted with an electromagnet block 722;

[0078] An electric push rod 723 is installed on the top of the positioning frame 71, and a push plate 724 is fixedly connected to the output end of the electric push rod 723. The bottom of the push plate 724 is rotatably connected to two push support rods 725, and the two push support rods 725 are rotatably connected to the two receiving blocks 721 respectively.

[0079] Specific implementation process: when welding one end of the cross bar, the electromagnet blocks 722 at both ends of the cross bar contact one end of the cross bar to limit the cross bar and prevent the cross bar from deforming during hot pressing welding. When the cross bar and the flat steel are welded, the excess position at one end is sheared by the two shear knives 56, and then the electromagnet is energized to absorb the excess material. Subsequently, through the operation of the synchronous member 76, the two positioning blocks 74 drive the extension frame 73 thereon to move synchronously, thereby further making the positioning frame 7 1 moves in the opposite direction of the cross bar. While moving, the electromagnet block 722 synchronously drives the residual material thereon to separate from the first clamping block 53 and the second clamping block 54. Subsequently, the electric push rod 723 operates, so that it pushes the plate 724 and the support rod 725 to further move the two collecting blocks 721 in the opposite direction until the two electromagnet blocks 722 move to the top of the corresponding collecting frame 77. Then, the electromagnet block 722 is powered off, and the residual material is affected by gravity and falls into the collecting frame 77.

[0080] Embodiment 2

[0081] See also Figure 10 to Figure 11 , Embodiment 2 is a further supplementary explanation of Embodiment 1, specifically: a plurality of buffer springs 9 are fixedly connected on the second clamping block 54 and below the arc groove 55, an arc plate 91 is fixedly connected between the plurality of buffer springs 9, two connecting ears 92 are installed on the side of the arc plate 91 close to the second clamping block 54, a buffer shaft 93 is fixedly connected between the two connecting ears 92, a buffer block 94 is rotatably sleeved on the outer side of the buffer shaft 93, and the buffer block 94 is fixedly installed on the second clamping block 54;

[0082] In the arrangement of this embodiment, an adjustable arc plate 91 is provided on the second clamping block 54, so that while the first clamping block 53 and the second clamping block 54 clamp one end of the cross bar through the arc groove 55 thereon, the arc plate 91 can limit one end of the cross bar, thereby preventing the movement of the cross bar and achieving stable clamping of the cross bar.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for processing steel gratings, comprising a pressure welding mechanism (1) for welding between flat steel and a cross bar and a conveying mechanism (2) for conveying the flat steel during welding, a lifting cylinder (3) is provided on both sides of the pressure welding structure, and a support plate (31) is installed on the lifting cylinder (3), and the two support plates (31) are used to support and position the two ends of the cross bar during welding, characterized in that: Also included are: A moving block (4), wherein the moving block (4) is slidably connected to the support plate (31); A stretching and positioning mechanism (5), wherein the stretching and positioning mechanism (5) is installed at both ends of the moving block (4), and the stretching and positioning mechanism (5) is used to stretch and position the cross bars when welding the two cross bars to a plurality of flat steels; A moving mechanism (6), wherein the moving mechanism (6) is mounted on the support plate (31), and the moving mechanism (6) is used to drive the moving block (4); A residual material collecting mechanism (7), wherein the residual material collecting mechanism (7) is located above the moving block (4), the stretching positioning mechanism (5) shears the redundant crossbar after welding, and the residual material collecting mechanism (7) collects the residual material after shearing.

2. The automatic welding device for processing steel grating according to claim 1 is characterized in that: The moving mechanism (6) comprises a support block (63) mounted on one end of the support plate (31) close to the pressure welding mechanism (1), and a support frame (61) is fixedly mounted on the other end of the support plate (31); A movable screw (62) is rotatably connected between the support block (63) and the support frame (61), and the movable block (4) is threadedly sleeved on the outside of the movable screw (62). A hollow cavity is provided inside the support plate (31), and a driving mechanism (64) for driving the movable screw (62) is installed in the hollow cavity.

3. The automatic welding device for processing steel grating according to claim 1 is characterized in that: The stretching positioning mechanism (5) comprises two support frames (51) fixedly mounted on both ends of the moving block (4), and the top of the support frame (51) is open-shaped, and the bottom of the opening of the support frame (51) is fixedly connected to a support shaft (52), and the support shaft (52) is fixedly connected to a first clamping block (53), and the bottom of the first clamping block (53) is provided with a groove; The support shaft (52) is also rotatably connected to a second clamping block (54), and the second clamping block (54) is located inside the groove; The first clamping block (53) and the second clamping block (54) are both provided with arc grooves (55), and the cross bar is clamped and pulled through the arc grooves (55); A shearing knife (56) is installed on the top of the first clamping block (53) and the second clamping block (54) on the side close to each other; A connecting piece (57) is provided between the two second clamping blocks (54), and a pushing mechanism (58) for pushing the connecting piece (57) is provided at the support frame (61).

4. The automatic welding device for processing steel grating according to claim 3 is characterized in that: The sides of the first clamping block (53) and the second clamping block (54) that are close to each other are both arranged as inclined surfaces.

5. According to the automatic welding device for processing steel gratings according to claim 3, it is characterized by: The connecting member (57) comprises two positioning shafts (571) respectively fixedly mounted on the two second clamping blocks (54); both ends of the positioning shaft (571) are rotatably connected to connecting support rods (572); the other ends of the two connecting support rods (572) at the two second clamping blocks (54) are rotatably connected to connecting shafts (573); both ends of the two connecting shafts (573) are fixedly connected to fixed support rods (574); a pushing block (575) is fixedly connected between the four fixed support rods (574); and the pushing block (575) is connected to the pushing mechanism (58).

6. The automatic welding device for processing steel grating according to claim 5 is characterized in that: The pushing mechanism (58) comprises a telescopic member (581) connected to the pushing block (575); one end of the telescopic member (581) is connected to a lifting block (582); a moving groove (611) is provided on the supporting frame (61), and the lifting block (582) slides through the moving groove (611); A fixing frame (583) is installed on the outer side of the support frame (61), and an adjusting mechanism (8) for driving the lifting block (582) is installed on the fixing frame (583).

7. The automatic welding device for processing steel grating according to claim 6 is characterized in that: The telescopic member (581) comprises a sliding rod (5811) fixedly mounted on one side of the pushing block (575), two guide bars (5812) fixedly mounted on the outer side of the sliding rod (5811), one end of the sliding rod (5811) and the outer sides of the two guide bars (5812) are slidably sleeved with a sliding sleeve (5813), and the sliding sleeve (5813) is fixedly connected to the lifting block (582).

8. The automatic welding device for processing steel grating according to claim 6 is characterized by: The adjusting mechanism (8) comprises a protective shell (81) fixedly mounted on a fixing frame (583), a rotating motor (82) being mounted inside the protective shell (81), an output end of the rotating motor (82) passing through the protective shell (81) and fixedly connected to a rotating plate (83), and the output end of the rotating motor (82) is rotatably connected to the protective shell (81); One end of the rotating plate (83) away from the protective shell (81) is fixedly connected to a rotating rod (84), and a lifting frame (85) is slidably sleeved on the outer side of the rotating rod (84), and the lifting frame (85) is fixedly connected to the lifting block (582).

9. The automatic welding device for processing steel grating according to claim 1 is characterized in that: The residual material collecting mechanism (7) comprises a positioning frame (71) located above the moving block (4), and a collecting member (72) for collecting one end of the sheared cross bar is installed on the positioning frame (71); The two ends of the positioning frame (71) are fixedly connected with extension frames (73), and the bottoms of the two extension frames (73) are fixedly connected with positioning blocks (74); A fixed base (75) is slidably connected between the two positioning blocks (74), the fixed base (75) is fixedly installed on the ground, and a synchronizing member (76) for synchronously driving the two positioning blocks (74) is installed on the fixed base (75); A collecting frame (77) is provided inside the two extension frames (73), and the collecting frame (77) is located on the ground and is used to collect the residual materials.

10. The automatic welding device for processing steel grating according to claim 9 is characterized in that: The collecting member (72) comprises two sheet collecting blocks (721) slidably connected to the positioning frame (71); a guide groove (711) is provided at the bottom of the positioning frame (71) and at positions corresponding to the two sheet collecting blocks (721); the two sheet collecting blocks (721) slide through the guide groove (711); The bottom of the receiving block (721) extends to below the positioning frame (71) and is fixedly mounted with an electromagnet block (722); An electric push rod (723) is installed on the top of the positioning frame (71), and the output end of the electric push rod (723) is fixedly connected to a push plate (724). The bottom of the push plate (724) is rotatably connected to two push support rods (725), and the two push support rods (725) are rotatably connected to the two receiving blocks (721) respectively.

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