Automatic adjusting and fixing device for steel plate splicing gap

Abstract

The utility model provides a kind of steel sheet splicing gap automatic adjustment and fixing device, it is related to steel sheet welding positioning field, comprising: welding table, the welding table upper end surface middle part is equipped with the gap of avoiding through, the welding table upper end surface is symmetrically provided with two groups of gap adjustment mechanism, and every group gap adjustment mechanism upper part is conveyed with a piece of steel plate;The welding table is located between two groups of gap adjustment mechanism and is equipped with limiting mechanism.Upper part is conveyed with a piece of steel plate by the setting of gap adjustment mechanism and limiting mechanism, significantly improve the adjustment accuracy and consistency of gap, also effectively reduce manpower and time cost, avoid the demand of many people cooperation, to further improve production efficiency;Solve the current in large steel sheet splicing operation, by naked eye, experience with simple tool manual adjustment gap by worker, not only low precision, and difficult to guarantee gap consistency, and need to consume a lot of manpower and time, reduce the problem of production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel plate welding and positioning technology, and in particular to an automatic adjustment and fixing device for steel plate splicing gap. Background Technology

[0002] In fields such as large-scale steel structure manufacturing, shipbuilding, heavy equipment manufacturing, and bridge construction, steel plate welding is a fundamental and crucial processing technique. The precise control and stable fixing of the gap between the steel plates directly determines the mechanical properties of the welded joint, the welding quality, and the overall reliability of the subsequent products. Precisely adjusting and maintaining a stable gap between the two steel plates to be welded before welding is the primary prerequisite for ensuring the quality of subsequent welding.

[0003] Currently, in the splicing of large steel plates, it is necessary to first use cranes and other hoisting equipment to initially position the two steel plates. Then, the operators use simple tools such as crowbars to manually adjust the position of the steel plates, relying on visual observation and experience to ensure that the splicing gap meets the process requirements. This not only results in extremely low adjustment accuracy but also makes it difficult to guarantee the consistency of the gap when splicing the two steel plates. Moreover, it consumes a lot of manpower and time, especially when dealing with large-sized and thick steel plates, requiring multiple people to work together, which further reduces production efficiency. Utility Model Content

[0004] This utility model relates to an automatic adjustment and fixing device for steel plate splicing gaps, which solves the problem that in current large steel plate splicing operations, it is necessary to first use hoisting equipment to preliminarily position the steel plates, and then workers manually adjust the position with simple tools based on their eyesight and experience to meet the splicing gap requirements. This not only results in low adjustment accuracy and difficulty in ensuring the consistency of the gap between the two steel plates, but also consumes a lot of manpower and time, reducing production efficiency.

[0005] In a first aspect, this utility model provides an automatic adjustment and fixing device for steel plate splicing gaps, specifically comprising: a welding table, wherein an clearance opening is provided in the middle of the upper surface of the welding table, and two sets of gap adjustment mechanisms are symmetrically arranged on the upper surface of the welding table, with a steel plate conveyed on the upper part of each set of gap adjustment mechanisms; a limiting mechanism is provided on the welding table between the two sets of gap adjustment mechanisms; two sets of pressing and fixing mechanisms and two linkage pressing mechanisms are symmetrically installed on the upper surface of the welding table, with the two linkage pressing mechanisms located on the left and right sides of the limiting mechanism respectively; a control box is installed at the bottom of the welding table, and two stop switches are symmetrically installed in the middle of the upper surface of the welding table.

[0006] Furthermore, the gap adjustment mechanism includes a conveying roller and an adjustment motor. There are four conveying rollers, which are rotatably connected to the upper surface of the welding table. A limiting plate is fixedly connected to the rear end of each conveying roller, and a worm gear is installed at the rear end of the shaft of one of the conveying rollers. The adjustment motor is installed on the rear side of the welding table, and a worm gear that meshes with the worm gear is installed on the shaft of the adjustment motor.

[0007] Furthermore, the limiting mechanism includes an electric cylinder A, which is installed on the middle side of the bottom of the welding table. A lifting plate is fixedly connected to the upper end of the telescopic rod of the electric cylinder A. A limiting plate is fixedly connected to the upper surface of the lifting plate, and the limiting plate passes through the clearance opening on the upper surface of the welding table. Vertical guide rods fixed to the bottom of the welding table are slidably connected to the four corners of the lifting plate.

[0008] Furthermore, the clamping and fixing mechanism includes a support plate, which is fixedly connected to the upper part of the welding platform. An electric cylinder B is installed in the middle of the upper surface of the support plate. The telescopic rod of the electric cylinder B passes through the support plate, and a clamping plate is fixedly connected to the lower end of the telescopic rod of the electric cylinder B. Guide rods that pass through the support plate are provided at the four corners of the upper surface of the clamping plate. Two clamping rollers are rotatably connected to the bottom of the clamping plate, and anti-slip rubber sleeves are provided on the outer circumference of both the clamping rollers and the conveying rollers.

[0009] Furthermore, the linkage pressing mechanism includes a pressing block, a vertical slide rod is fixedly connected to the bottom end face of the pressing block, and a guide slider fixed to the upper end face of the welding platform is slidably connected to the outside of the vertical slide rod. A spring is sleeved on the outside of the vertical slide rod between the pressing block and the guide slider, and an inclined surface is provided on the pressing block.

[0010] Furthermore, when the limiting mechanism is in the limiting state, the opposite surfaces of the two steel plates are in contact with the left and right end surfaces of the limiting plate, and the bottom surface of the steel plate is in contact with the top surface of the pressing block. At this time, the bottom surface of the pressing block is in close contact with the button on the stop switch.

[0011] This utility model provides an automatic adjustment and fixing device for steel plate splicing gaps, which has the following beneficial effects: I. By setting up a gap adjustment mechanism and a limiting mechanism, when adjusting the gap between two steel plates, two sets of gap adjustment mechanisms drive the two steel plates to move towards each other. Then, the limiting plate in the limiting mechanism limits the two moving steel plates. When the relative inner surfaces of the two steel plates contact the left and right end faces of the limiting plate respectively, the gap between them reaches the standard value. This achieves automatic adjustment of the steel plate splicing gap. Moreover, the adjustment process does not require workers to manually adjust the position of the steel plates with simple tools such as crowbars, nor does it rely on visual observation or experience. It can ensure that the splicing gap meets the process requirements. This not only significantly improves the adjustment accuracy and consistency of the gap, but also effectively reduces labor and time costs, avoids the need for multiple people to work together, and thus further improves production efficiency.

[0012] Second, through the coordinated design of the linkage pressing mechanism and the stop switch, when the opposite surfaces of the two steel plates contact the left and right end surfaces of the limiting plate respectively, the bottom surface of the steel plate will be in contact with the upper surface of the pressing block of the linkage pressing mechanism. At this time, the pressing block will press the button of the stop switch, triggering the stop switch to send a stop signal to the control box. After receiving the signal, the control box will immediately control the adjustment motor to stop operating, thereby effectively avoiding overload damage to the adjustment motor caused by continuous operation and effectively extending the service life of the adjustment motor. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the accompanying drawings will be briefly described below.

[0014] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of this application is shown; Figure 2 A structural schematic diagram of this application from a rear view is shown; Figure 3 A schematic diagram of the gap adjustment mechanism of this application is shown; Figure 4 A partial cross-sectional structural schematic diagram of the welding station of this application is shown; Figure 5 A schematic diagram of the restricting mechanism of this application in a restricted state is shown; Figure 6 This application shows Figure 5 A magnified structural diagram of part A in the middle.

[0015] List of reference numerals 1. Welding station; 2. Gap adjustment mechanism; 201. Conveyor roller; 202. Limiting plate; 203. Adjustment motor; 204. Worm gear; 205. Worm wheel; 3. Restriction mechanism; 301. Electric cylinder A; 302. Lifting plate; 303. Restriction plate; 304. Vertical guide rod; 4. Pressing and fixing mechanism; 401. Support plate; 402. Electric cylinder B; 403. Pressing plate; 404. Pressing roller; 5. Steel plate; 6. Linkage pressing mechanism; 601. Pressing block; 602. Vertical slide bar; 603. Guide slider; 7. Control box; 8. Stop the switch. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: Please refer to Figures 1 to 6 : This utility model proposes an automatic adjustment and fixing device for steel plate splicing gaps, comprising: a welding table 1, with an clearance opening in the middle of the upper surface of the welding table 1; two sets of gap adjustment mechanisms 2 are symmetrically arranged on the upper surface of the welding table 1, and each set of gap adjustment mechanisms 2 conveys a steel plate 5; a limiting mechanism 3 is arranged on the welding table 1 between the two sets of gap adjustment mechanisms 2; two sets of pressing and fixing mechanisms 4 and two linkage pressing mechanisms 6 are symmetrically installed on the upper part of the welding table 1, and the two linkage pressing mechanisms 6 are located on the left and right sides of the limiting mechanism 3 respectively; a control box 7 is installed at the bottom of the welding table 1, and two stop switches 8 are symmetrically installed in the middle of the upper surface of the welding table 1; the gap adjustment mechanism 2 includes four conveying rollers 201 and four adjusting motors 203, which are rotatably connected to the upper surface of the welding table 1. Each conveyor roller 201 has a fixed limiting plate 202 at its rear end, and a worm gear 205 is installed at the rear end of the shaft of one of the conveyor rollers 201. An adjusting motor 203 is installed on the rear side of the welding table 1, and a worm 204 that meshes with the worm gear 205 is installed on the shaft of the adjusting motor 203. The spiral angle of the worm 204 is smaller than the friction angle when it contacts the worm gear 205, thereby achieving an effective self-locking effect between the worm gear 205 and the worm 204. With the setting of the gap adjustment mechanism 2 and the limiting mechanism 3, when adjusting the gap between two steel plates 5, workers do not need to manually adjust the position of the steel plates 5 with simple tools such as pry bars, nor do they need to rely on visual observation or experience to ensure that the splicing gap meets the process requirements. This significantly improves the adjustment accuracy and consistency of the gap, effectively reduces labor and time costs, avoids the need for multiple people to work together, and further improves production efficiency.

[0018] The limiting mechanism 3 includes an electric cylinder A301, which is installed on the bottom middle side of the welding table 1. The upper end of the telescopic rod of the electric cylinder A301 is fixedly connected to a lifting plate 302. The upper end face of the lifting plate 302 is fixedly connected to a limiting plate 303, which passes through the clearance opening on the upper end face of the welding table 1. Vertical guide rods 304 fixed to the bottom of the welding table 1 are slidably connected to the four corners of the lifting plate 302. The limiting mechanism 3 is used to limit the movement of two steel plates 5 in opposite directions. The thickness of the limiting plate 303 is the gap between the two steel plates 5.

[0019] The clamping and fixing mechanism 4 includes a support plate 401, which is fixedly connected to the upper part of the welding table 1. An electric cylinder B402 is installed in the middle of the upper end face of the support plate 401. The telescopic rod of the electric cylinder B402 passes through the support plate 401, and a clamping plate 403 is fixedly connected to the lower end of the telescopic rod of the electric cylinder B402. Guide rods that pass through the support plate 401 are provided at the four corners of the upper end face of the clamping plate 403. Two clamping rollers 404 are rotatably connected to the bottom of the clamping plate 403. Anti-slip rubber sleeves are provided on the outer circumference of the clamping rollers 404 and the conveying rollers 201. The anti-slip rubber sleeves provide better friction when the clamping rollers 404 and the conveying rollers 201 are in contact with the steel plate 5.

[0020] Example 2, based on Example 1, such as Figures 4 to 6 As shown, the linkage pressing mechanism 6 includes a pressing block 601. A vertical slide rod 602 is fixedly connected to the bottom end of the pressing block 601, and a guide slider 603 fixed to the upper end of the welding table 1 is slidably connected to the outside of the vertical slide rod 602. A spring is sleeved on the outside of the vertical slide rod 602 between the pressing block 601 and the guide slider 603. After the pressing block 601 loses its downward pressing action, the pressing block 601 is lifted upward and reset by the elastic force of the spring on the outside of the vertical slide rod 602. An inclined surface is provided on the pressing block 601. When the limiting mechanism 3 is in the limiting position... In the controlled state, the opposing surfaces of the two steel plates 5 are in contact with the left and right end faces of the limiting plate 303, and the bottom surface of the steel plate 5 is in contact with the top surface of the pressing block 601. At this time, the bottom surface of the pressing block 601 is in close contact with the button on the stop switch 8. The pressing block 601 will press the button of the stop switch 8, triggering the stop switch 8 to send a stop signal to the control box 7. After receiving the signal, the control box 7 immediately controls the adjustment motor 203 to stop operating, thereby effectively avoiding overload damage caused by continuous operation of the adjustment motor 203.

[0021] The working principle of this embodiment is as follows: During splicing, the two steel plates 5 are first hoisted onto the two sets of gap adjustment mechanisms 2 using hoisting equipment, so that the steel plates 5 are located above the conveying rollers 201 and the rear end face of the steel plates 5 is in contact with the front end face of the limiting plate 202. Then, the telescopic rod of the electric cylinder B402 is extended by the control box 7, which moves the pressing plate 403 and the pressing roller 404 downward, so that the outer anti-slip rubber sleeve of the pressing roller 404 is in close contact with the upper end face of the steel plate 5. Then, the two adjustment motors are activated by the control box 7. 203 is activated. Two adjusting motors 203 drive two worm gears 204, two worm wheels 205, and two corresponding conveying rollers 201 to rotate in opposite directions, thereby simultaneously conveying the two steel plates 5 in opposite directions. The two steel plates 5 moving in opposite directions, in conjunction with the inclined surface of the pressing block 601, press the pressing block 601 downwards. When the opposing surfaces of the two steel plates 5 contact the left and right end faces of the limiting plate 303 respectively, the bottom surface of the steel plates 5 contacts the upper surface of the pressing block 601, and at this time, the pressing block 601... 1. The bottom surface of the device is in close contact with the button on the stop switch 8, thereby pressing the button on the stop switch 8. The stop switch 8 then transmits the pressing signal to the control box 7, which controls the adjustment motor 203 to stop operating. Then, the control box 7 controls the telescopic rod of the electric cylinder A301 to retract downward, moving the lifting plate 302 and the limiting plate 303 downward, so that the limiting plate 303 separates between the two steel plates 5. At this time, the gap between the two steel plates 5 is exactly the standard gap, thus automatically adjusting the splicing gap of the steel plates 5. During the gap adjustment process, there is no need for workers to manually adjust the position of the steel plates 5 using simple tools such as pry bars, nor is there any need for visual observation and experience judgment. The splicing gap can meet the process requirements, which not only improves the adjustment accuracy, but also effectively ensures the consistency of the gap when splicing the two steel plates 5. Moreover, it does not require a lot of manpower and time, and does not require multiple people to cooperate, further improving production efficiency. Next, the two steel plates 5 can be welded using a welding torch.

[0022] When the control adjustment motor 203 stops operating, the worm gear 205 and worm 204 can achieve self-locking, and through the pressing action of the pressing and fixing mechanism 4, the steel plate 5 can be effectively fixed on the gap adjustment mechanism 2, which improves the quality of the two steel plates 5 when they are welded together.

[0023] The following points should be noted in this article: 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0024] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An automatic adjustment and fixing device for steel plate splicing gaps, comprising: A welding table (1) is provided with an clearance opening in the middle of the upper end face of the welding table (1). The welding table (1) is characterized by having two sets of gap adjustment mechanisms (2) arranged symmetrically on the upper end face of the welding table (1), and a steel plate (5) is conveyed on the upper part of each set of gap adjustment mechanisms (2); a limiting mechanism (3) is provided on the welding table (1) between the two sets of gap adjustment mechanisms (2); two sets of pressing and fixing mechanisms (4) and two linkage pressing mechanisms (6) are installed symmetrically on the upper part of the welding table (1), and the two linkage pressing mechanisms (6) are located on the left and right sides of the limiting mechanism (3); a control box (7) is installed at the bottom of the welding table (1), and two stop switches (8) are installed symmetrically on the middle of the upper end face of the welding table (1).

2. The automatic adjustment and fixing device for steel plate splicing gap according to claim 1, characterized in that: The gap adjustment mechanism (2) includes a conveying roller (201) and an adjustment motor (203). There are four conveying rollers (201), and the four conveying rollers (201) are rotatably connected to the upper end face of the welding table (1). A limiting plate (202) is fixedly connected to the rear end of each conveying roller (201), and a worm gear (205) is installed at the rear end of the shaft of one of the conveying rollers (201). The adjustment motor (203) is installed on the rear side of the welding table (1), and a worm (204) that meshes with the worm gear (205) is installed on the shaft of the adjustment motor (203).

3. The automatic adjustment and fixing device for steel plate splicing gap according to claim 1, characterized in that: The limiting mechanism (3) includes an electric cylinder A (301), which is installed on the bottom middle side of the welding table (1). The upper end of the telescopic rod of the electric cylinder A (301) is fixedly connected to a lifting plate (302). The upper end of the lifting plate (302) is fixedly connected to a limiting plate (303), and the limiting plate (303) passes through the clearance opening on the upper end of the welding table (1). Vertical guide rods (304) fixed to the bottom of the welding table (1) are slidably connected at the four corners of the lifting plate (302).

4. The automatic adjustment and fixing device for steel plate splicing gap according to claim 2, characterized in that: The clamping and fixing mechanism (4) includes a support plate (401), which is fixedly connected to the upper part of the welding table (1). An electric cylinder B (402) is installed in the middle of the upper end face of the support plate (401). The telescopic rod of the electric cylinder B (402) passes through the support plate (401), and a clamping plate (403) is fixedly connected to the lower end of the telescopic rod of the electric cylinder B (402). Guide rods that pass through the support plate (401) are provided at the four corners of the upper end face of the clamping plate (403). Two clamping rollers (404) are rotatably connected to the bottom of the clamping plate (403), and anti-slip rubber sleeves are provided on the outer circumference of the clamping rollers (404) and the conveying rollers (201).

5. The automatic adjustment and fixing device for steel plate splicing gap according to claim 3, characterized in that: The linkage pressing mechanism (6) includes a pressing block (601), a vertical slide rod (602) is fixedly connected to the bottom end of the pressing block (601), and a guide slider (603) fixed to the upper end of the welding table (1) is slidably connected to the outside of the vertical slide rod (602). A spring is sleeved between the pressing block (601) and the guide slider (603) on the outside of the vertical slide rod (602). An inclined surface is provided on the pressing block (601).

6. The automatic adjustment and fixing device for steel plate splicing gap according to claim 5, characterized in that: When the limiting mechanism (3) is in the limiting state, the opposite surfaces of the two steel plates (5) are in contact with the left and right end surfaces of the limiting plate (303), and the bottom surface of the steel plate (5) is in contact with the upper surface of the pressing block (601). At this time, the bottom surface of the pressing block (601) is in close contact with the button on the stop switch (8).

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