A quick butt-welding auxiliary tool for annular steel plates

Abstract

The utility model discloses a kind of ring steel plate quick tailor-welding auxiliary tool, it includes semicircular base plate, semicircular base plate is uniformly distributed with several sliding slots along semicircular base plate radial direction on circumference, sliding block is slidably arranged in each sliding slot, several positioning pin mounting posts are evenly spaced and arranged on each sliding block along the length direction of sliding block;The semicircular base plate is also provided with linkage mechanism, the linkage mechanism is transmission connected with all the sliding blocks to drive all the sliding blocks to synchronously slide translation in sliding slot.The utility model has the technical features of strong universality, easy operation, accurate positioning and low cost.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to an auxiliary tooling for rapid welding of ring-shaped steel plates. Background Technology

[0002] Currently, in the manufacturing process of large steel structures (such as steam turbines, ships, and storage tanks), the welding of 50-150mm thick ring-shaped steel plates mainly relies on the following methods:

[0003] 1. Manual positioning and splicing: The ring-shaped steel plates to be spliced ​​are manually marked and positioned before welding. This process requires equipment (such as cranes, overhead cranes, etc.) and multiple people working together. This method is based on manual execution of the entire process, which relies on personal experience and judgment, resulting in low splicing accuracy and efficiency, poor welding quality, and requires more resources and is costly. When adjustments are needed, they are complicated and time-consuming due to the weight of the steel plates and the splicing gaps and size requirements.

[0004] 2. Custom-made tooling: Based on the curvature, size, thickness and other dimensions of the ring-shaped steel plate, custom-made tooling is made to suit its positioning and splicing. This method has high splicing accuracy and ensures the quality and effect of subsequent welding. However, such custom-made tooling is generally expensive and can only meet the splicing of steel plates with specific curvature or small range of curvature changes, and has poor versatility.

[0005] Based on this, this application provides a versatile, easy-to-operate, and precise auxiliary tooling for rapid welding of annular steel plates, which is used to assist in the splicing and positioning of annular steel plates with most curvatures. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art. The purpose is to provide an auxiliary tooling for rapid welding of ring-shaped steel plates, which has the technical characteristics of strong versatility, simple operation, accurate positioning and low cost.

[0007] This utility model is achieved through the following technical solution: a rapid welding auxiliary tooling for annular steel plates, comprising a semi-circular base plate, on which several grooves are evenly distributed in a circular pattern along the radial direction of the semi-circular base plate, and a slider is slidably disposed in each groove, and several positioning pin mounting posts are evenly spaced along the length of each slider; the semi-circular base plate is also provided with a linkage mechanism, which is connected to all the sliders in a transmission manner to drive all the sliders to slide and translate synchronously in the grooves.

[0008] Based on the above technical solution, the height of the positioning pin mounting post is equal to or lower than the height of the slide groove.

[0009] Based on the above technical solution, the upper surface of the semi-circular substrate located outside the slide groove is also provided with a scale line, which is set along the length direction of the slide groove.

[0010] Based on the above technical solution, the two ends of the groove along the radial direction of the semi-circular substrate are sealed by the semi-circular substrate.

[0011] Based on the above technical solution, the upper surface of the semi-circular substrate is coated with an anti-adhesion layer.

[0012] Based on the above technical solution, the linkage mechanism is a turntable, and the upper surface of the turntable forms a continuous planar thread; the vertical sidewall of the semi-circular substrate is also recessed to form a mounting cavity, which is connected to the slide groove; the turntable is rotatably connected to the mounting cavity and partially extends to the outside of the semi-circular substrate; the bottom of the slider is also provided with several sets of trapezoidal threads along its length direction; the several sets of trapezoidal threads are all threaded with the planar thread to realize the transmission connection.

[0013] Based on the above technical solution, the vertical sidewall of the semi-circular substrate is also provided with a driving mechanism; the driving mechanism includes a driving motor and a small bevel gear connected to the output end of the driving motor; the lower end of the turntable is circumferentially formed with a large bevel gear tooth, and the small bevel gear meshes with the large bevel gear tooth.

[0014] Based on the above technical solution, the vertical sidewall of the semi-circular substrate is also provided with a locking mechanism; the locking mechanism includes a connecting plate connected to the semi-circular substrate, a threaded hole is provided through the connecting plate, and a locking nut is threaded in the threaded hole; the locking nut is arranged laterally and can be pressed against the circumferential side of the turntable.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model can drive all the sliders synchronously through the linkage mechanism, and then, based on the curvature of the spliced ​​steel plates, positioning pins can be installed on the corresponding positioning pin mounting posts on each slider. Several positioning pins form an arrangement corresponding to the curvature of the steel plates. At this time, the steel plates (inner ring) to be welded can be sequentially abutted against the sides of the positioning pins, so as to accurately realize the splicing and installation of the ring-shaped steel plates. It is convenient to use, accurate in positioning, and the overall structure is relatively simple and inexpensive. In particular, it can be used for ring-shaped steel plates with various curvatures and has strong versatility. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the auxiliary tooling for rapid welding of annular steel plates in the embodiment;

[0018] Figure 2 This is a schematic diagram showing the usage status of the auxiliary tooling for rapid welding of annular steel plates in the embodiment;

[0019] Figure 3 This is a cross-sectional view of the auxiliary tooling for rapid welding of annular steel plates in the embodiment;

[0020] Figure 4 This is a partial sectional view of the front of the auxiliary tooling for rapid welding of annular steel plates in the embodiment;

[0021] 1. Semi-circular base plate; 2. Slide groove; 3. Slider; 4. Positioning pin mounting post; 5. Scale line; 6. Turntable; 7. Flat thread; 8. Mounting cavity; 9. Trapezoidal thread; 10. Drive motor; 11. Small bevel gear; 12. Large bevel gear teeth; 13. Connecting plate; 14. Locking nut. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0023] like Figures 1 to 4 As shown, this utility model provides an auxiliary tooling for rapid welding of annular steel plates, which includes a semi-circular base plate 1. Several grooves 2 are evenly distributed around the circumference of the semi-circular base plate 1 and arranged radially along the semi-circular base plate 1. A slider 3 is slidably disposed in each groove 2. Several positioning pin mounting posts 4 are evenly spaced along the length direction of each slider 3. The semi-circular base plate 1 is also provided with a linkage mechanism, which is connected to all the sliders 3 to drive all the sliders 3 to slide and translate synchronously in the grooves 2.

[0024] During implementation, the radius of curvature of the inner ring of the annular steel plate A to be spliced ​​is known. The linkage mechanism can be controlled to drive all the sliders 3 synchronously and translate radially along the semi-circular base plate 1, thereby changing the distance of the positioning pin mounting posts 4 on them radially. Taking any positioning pin mounting post 4 as a reference, the drive stops when its movement distance is the same as the radius of curvature of the inner ring of the annular steel plate A. At this time, the positioning pin mounting posts 4 on each slider 3 that are at the same distance as the radius of curvature of the inner ring of the annular steel plate A are located on the same circumference, that is, their distance from the center B of the semi-circular base plate 1 is equal. Positioning pins C are installed on each corresponding positioning pin mounting post 4. The height of the positioning pins C is higher than the height of the semi-circular base plate 1. Then, the annular steel plate A can be installed and spliced ​​sequentially with the positioning pins C as the inner ring reference, thereby achieving fast and accurate splicing with the assistance of the positioning pins C. After that, it can be directly welded.

[0025] Based on this, this embodiment can drive all sliders 3 synchronously through a linkage mechanism. Then, based on the curvature of the spliced ​​steel plates, positioning pins can be installed on the corresponding positioning pin mounting posts 4 on each slider 3. Several positioning pins form an arrangement corresponding to the curvature of the steel plates. At this time, the steel plates (inner ring) to be welded can be sequentially abutted against the sides of the positioning pins, so as to accurately realize the splicing and installation of the ring-shaped steel plates. It is convenient to use, accurate in positioning, and the overall structure is relatively simple and inexpensive. In particular, it can be used for ring-shaped steel plates with various curvatures and has strong versatility.

[0026] As one specific implementation method, the positioning pin mounting post 4 is provided with a vertical hole for installing the positioning pin.

[0027] As one specific implementation, the height of the positioning pin mounting post 4 is equal to or lower than the height of the slide groove 2. During the splicing process, in order to avoid the positioning pin mounting post 4 affecting the placed steel plate and to facilitate its direct welding, the height of the positioning pin mounting post 4 is equal to or lower than the height of the slide groove 2, thereby avoiding its impact on the installation, adjustment, and welding of the steel plate after splicing.

[0028] As one specific implementation, the upper surface of the semi-circular base plate 1 located outside the slide groove 2 is also provided with a scale line 5, which is arranged along the length direction of the slide groove 2. During the adjustment of the linkage mechanism, the radial position of each positioning pin mounting post 4 can be intuitively obtained based on the scale line 5, which facilitates the operator to accurately control the position and distance of the positioning pin mounting post 4.

[0029] As one specific implementation, the two ends of the groove 2 along the radial direction of the semi-circular substrate 1 are sealed by the semi-circular substrate 1. In this way, when the slider 3 slides in the groove 2, it can be blocked by the seal, thereby limiting its maximum or minimum displacement, preventing its movement from exceeding the effective connection position with the linkage mechanism, and also preventing the slider 2 from being damaged or the connection with the linkage mechanism from failing due to improper operation or displacement out of the groove.

[0030] As one specific implementation, the upper surface of the semi-circular substrate 1 is coated with an anti-adhesion layer. After splicing, the steel plate is directly welded to the upper surface of the semi-circular substrate 1. In order to avoid adhesion after welding and damage to the workpiece or substrate, the semi-circular substrate 1 in this embodiment can effectively prevent welding adhesion. Specifically, the anti-adhesion layer can be a nano-ceramic anti-adhesion coating, a composite ceramic coating, a Teflon (T003 type) non-stick coating, etc.

[0031] like Figure 1 , Figure 3As shown, the linkage mechanism is a turntable 6, and the upper surface of the turntable 6 forms a continuous planar thread 7; the vertical sidewall of the semi-circular base plate 1 is also recessed to form a mounting cavity 8, which is connected to the slide groove 2; the turntable 6 is rotatably connected to the mounting cavity 8 and partially extends to the outside of the semi-circular base plate 1; the bottom of the slider 3 is also provided with several sets of trapezoidal threads 9 along its length direction; the several sets of trapezoidal threads 9 are all threadedly engaged with the planar thread 7 to achieve transmission connection.

[0032] In practice, the turntable 6 is connected to all the sliders 3 by the trapezoidal thread 9 and the planar thread 7. When the turntable 6 rotates forward or backward, based on the thread pairing structure and the limitation of the slide groove 2, all the sliders 3 move synchronously along the direction of the slide groove 2, that is, the radial direction of the semi-circular base plate 1, thereby achieving a synchronous driving effect.

[0033] When adjustments are needed, the turntable 6 extending to the semi-circular substrate 1 can be rotated manually or through an external drive mechanism, making the operation of the turntable 6 very convenient and easy to use.

[0034] like Figure 4 As shown, in a specific application, the vertical sidewall of the semi-circular substrate 1 is also provided with a driving mechanism; the driving mechanism includes a drive motor 10 and a small bevel gear 11 connected to the output end of the drive motor 10; the lower end of the turntable 6 has a large bevel gear tooth 12 formed in a circular shape, and the small bevel gear 11 meshes with the large bevel gear tooth 12. In this embodiment, the drive motor 10 is connected to the turntable 6 in a gear transmission structure, so that the turntable 6 can be driven to rotate under the action of the drive motor 10, which can conveniently drive the turntable 6 to rotate, and can also better control the displacement of the slider 3.

[0035] It should be noted that when a drive motor 10 is provided, an external control system can be connected to precisely control its speed and rotation speed, so that the position of the slider 3 can be directly and precisely adjusted according to the required curvature. Alternatively, after the drive motor 10 drives the slider 3 to the approximate position, the turntable 6 can be manually rotated to the corresponding positioning pin mounting post 4 to reach the required position.

[0036] In practical applications, the vertical sidewall of the semi-circular substrate 1 is also equipped with a locking mechanism. The locking mechanism includes a connecting plate 13 connected to the semi-circular substrate 1, with a threaded hole through the connecting plate 13. A locking nut 14 is threaded into the threaded hole. The locking nut 14 is arranged laterally and can be pressed against the circumferential side of the turntable 6. When the positioning pin mounting post 4 reaches the corresponding position, the locking nut 14 can be rotated to press against the circumferential side of the turntable 6, thereby fixing the turntable 6. This simultaneously fixes the slider 3 and its positioning pin mounting post 4, so that all the positioning pins C can be well positioned during splicing and welding without displacement, ensuring continuous and precise splicing and welding operations.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An auxiliary tooling for rapid welding of annular steel plates, characterized in that, The system includes a semi-circular base plate, on which several grooves are evenly distributed in a circular pattern along the radial direction of the semi-circular base plate. A slider is slidably disposed in each groove, and several positioning pin mounting posts are evenly spaced along the length of each slider. The semi-circular base plate is also provided with a linkage mechanism, which is connected to all the sliders to drive all the sliders to slide and translate synchronously in the grooves.

2. The auxiliary tooling for rapid welding of annular steel plates according to claim 1, characterized in that, The height of the positioning pin mounting post is equal to or lower than the height of the slide groove.

3. The auxiliary tooling for rapid welding of annular steel plates according to claim 1, characterized in that, The upper surface of the semi-circular substrate located outside the slide groove is also provided with scale lines, which are set along the length of the slide groove.

4. The auxiliary tooling for rapid welding of annular steel plates according to claim 1, characterized in that, The groove is sealed at both ends of the semi-circular substrate along the radial direction of the substrate.

5. The auxiliary tooling for rapid welding of annular steel plates according to claim 1, characterized in that, The upper surface of the semi-circular substrate is coated with an anti-adhesion layer.

6. The auxiliary tooling for rapid welding of annular steel plates according to claim 1, characterized in that, The linkage mechanism is a turntable, and the upper surface of the turntable forms a continuous planar thread; The vertical sidewall of the semi-circular substrate is also recessed to form a mounting cavity, which is connected to the sliding groove. The turntable is rotatably connected inside the mounting cavity and partially extends to the outside of the semi-circular base plate; The bottom of the slider is also provided with several sets of trapezoidal threads along its length. Several sets of trapezoidal threads are coupled with planar threads to achieve transmission connection.

7. The auxiliary tooling for rapid welding of annular steel plates according to claim 6, characterized in that, The vertical sidewall of the semi-circular substrate is also provided with a driving mechanism; The drive mechanism includes a drive motor and a small bevel gear connected to the output end of the drive motor; The lower end of the turntable has a large bevel gear tooth in a circular shape, and the small bevel gear meshes with the large bevel gear tooth.

8. The auxiliary tooling for rapid welding of annular steel plates according to claim 6, characterized in that, The vertical sidewall of the semi-circular substrate is also provided with a locking mechanism; The locking mechanism includes a connecting plate connected to a semi-circular base plate, and a threaded hole is provided through the connecting plate, with a locking nut threaded into the threaded hole. The locking nut is arranged laterally and can be pressed against the circumferential side of the turntable.

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