A limiting device for a steel pipe forming equipment

Abstract

The utility model discloses a kind of limit stop device for steel pipe forming equipment, belong to steel pipe forming equipment technical field, including mounting plate and drive mechanism, two limit slots are provided on mounting plate, limit slot includes horizontal slot and inclined slot, a set of clamping mechanism is respectively installed on the inner wall of each limit slot, clamping mechanism includes two upper sliding blocks, moving rod and telescopic component, telescopic component is connected with moving rod, moving rod can be driven towards the direction of approaching steel pipe movement by telescopic component;Drive mechanism is connected with upper sliding block, drive mechanism can drive upper sliding block to slide along the inner wall of limit slot. When upper sliding block enters inclined slot, two upper sliding blocks located in two inclined slots are away from each other, all moving rods are separated from steel pipe when all upper sliding blocks enter inclined slot, it is convenient for next process processing worker to take steel pipe, realize when limiting steel pipe, manual operation is not needed to separate.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe forming equipment, and specifically discloses a limiting device for steel pipe forming equipment. Background Technology

[0002] Steel pipes, as a core industrial tubular metal product widely used in oil and gas transportation, building structures, machinery manufacturing, and fluid pipeline networks, are characterized by their hollow, slender, continuous profiles with specific wall thicknesses, diameters, and lengths. The fundamental quality requirement in the manufacturing process of steel pipes lies in ensuring the final geometric accuracy and dimensional consistency. This includes, but is not limited to, precisely controlled outer diameter, uniform wall thickness distribution, a straight and unbent pipe axis, and precise end section angles. Achieving these geometric precisions is the fundamental guarantee that steel pipes can be successfully used in subsequent assembly, connection, withstand design loads, and meet core functional requirements such as fluid sealing and structural stability.

[0003] In the continuous forming process of steel pipe manufacturing, the metal material constituting the geometry of the steel pipe is subjected to continuous deformation forces in a specific forming equipment. The final pipe cross-sectional profile and extension direction are directly constrained and shaped by the spatial position, trajectory, and relative motion of key dynamic components in the forming equipment. These key dynamic components must be precisely confined within a preset physical space and working path during their operation; otherwise, any unintended displacement, vibration drift, or attitude deviation that may occur will directly cause the steel pipe being formed to deviate from its target geometry or size, resulting in manufacturing defects that fail to meet precision requirements. Therefore, a limiting device capable of effectively constraining and positioning key dynamic components in steel pipe forming equipment during operation is essential. However, in the existing technology, the limiting part of the limiting device is fixed in position. After the steel pipe is limited, the limiting part continues to limit the steel pipe. When the steel pipe is finished and needs to be transported to the next processing step, the processing personnel need to manually operate the limiting part to release the limitation on the steel pipe, which leads to a reduction in work efficiency. Therefore, a limiting device for steel pipe forming equipment was invented to address this defect. Utility Model Content

[0004] To address the problem of reduced work efficiency caused by manually opening the limiting device when transporting the equipment to the next process, this utility model provides a limiting device for steel pipe forming equipment.

[0005] This utility model is achieved through the following technical solution: A limiting device for steel pipe forming equipment includes a mounting plate in the middle that can support and guide the steel pipe and a driving mechanism installed below the mounting plate. Two limiting grooves are symmetrically arranged on the mounting plate. Each limiting groove includes a horizontal groove that runs in the same direction as the steel pipe and an inclined groove connected to both ends of the horizontal groove. The distance between the two corresponding inclined grooves decreases along the direction closer to the horizontal groove. A set of clamping mechanisms is installed on the inner wall of each limiting groove. The clamping mechanism includes two upper sliding blocks that are slidably installed on the inner wall of the limiting groove, a moving rod installed on the upper sliding blocks and facing the center, and a telescopic component installed on the upper sliding blocks. The telescopic component is connected to the moving rod and can drive the moving rod to move towards the direction closer to the steel pipe through the telescopic component.

[0006] The drive mechanism is connected to the upper sliding block, and the drive mechanism can drive the upper sliding block to slide along the inner wall of the limiting groove.

[0007] The telescopic assembly drives the moving rods to move closer to the steel pipe, thereby clamping the steel pipe through the four moving rods. Then, the drive mechanism is activated, which drives the upper sliding blocks to slide along the horizontal and inclined grooves of the limiting groove. When the upper sliding blocks move along the horizontal groove, they drive the steel pipe towards the next processing step through the moving rods. When the upper sliding blocks enter the inclined groove, the two upper sliding blocks located in the two inclined grooves move away from each other, thereby driving the moving rods to detach from the steel pipe. When all the upper sliding blocks have entered the inclined groove, all the moving rods detach from the steel pipe, making it convenient for the processing workers in the next process to pick up the steel pipe. This eliminates the need for manual separation when the steel pipe is no longer limited.

[0008] A further improvement of this utility model is that a first connecting block is fixedly installed on the opposite sides of the two upper sliding blocks located on the inner wall of the same limiting groove. The two first connecting blocks are connected by a first connecting rod, and the two ends of the first connecting rod are rotatably connected to the two first connecting blocks respectively.

[0009] A further improvement of this utility model is that the two inclined grooves of the limiting groove are of equal length, and the length of the inclined groove of the limiting groove is greater than the length of the first connecting rod.

[0010] A further improvement of this utility model is that an anti-slip sticker is affixed to the side of the moving rod facing the steel pipe, and a moving cylinder is fixedly installed on the side of the moving rod away from the steel pipe. A groove is provided on the outer surface of the moving cylinder, and a second limiting rod is slidably installed on the inner wall of the groove of the moving cylinder. The second limiting rod is fixedly installed on the side of the upper sliding block away from the steel pipe.

[0011] A further improvement of this utility model is that a threaded hole is provided at the end of the movable cylinder away from the movable rod, and a spiral shaft is installed in the threaded hole of the movable cylinder to form a threaded fit. A circular through hole is provided on the side of the second limiting rod, and the spiral shaft is rotatably installed on the inner wall of the circular through hole of the second limiting rod. The diameter of the inner wall of the circular through hole of the second limiting rod is equal to the diameter of the outer surface of the spiral shaft.

[0012] A further improvement of this utility model is that a sliding shaft is fixedly installed on the lower side of each upper sliding block. The sliding shaft is slidably installed on the inner wall of the limiting groove. The length of the sliding shaft is equal to the thickness of the mounting plate. A lower sliding block is fixedly installed at the end of the sliding shaft away from the upper sliding block. The lower sliding block is slidably installed on the lower side of the mounting plate. A second connecting block is fixedly installed on the opposite side of the two lower sliding blocks. The two second connecting blocks are connected by a second connecting rod. The two ends of the second connecting rod are rotatably connected to the two second connecting blocks respectively.

[0013] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: the telescopic component drives the moving rod to move towards the steel pipe, thereby clamping the steel pipe through the four moving rods. Then the drive mechanism is activated, and the drive mechanism drives the upper sliding block to slide along the horizontal groove and the inclined groove of the limiting groove. When the upper sliding block moves along the horizontal groove, it drives the steel pipe to move towards the next processing step through the moving rod. When the upper sliding block enters the inclined groove, the two upper sliding blocks located in the two inclined grooves move away from each other, thereby driving the moving rod to detach from the steel pipe. When all the upper sliding blocks have entered the inclined groove, all the moving rods detach from the steel pipe, making it convenient for the processing worker in the next process to pick up the steel pipe. Thus, when the steel pipe is no longer limited, manual operation is not required for separation. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the part marked by the middle circle.

[0018] Figure 4 This is a schematic diagram showing the positional relationship between the mounting plate and the steel pipe of this utility model.

[0019] Figure 5 for Figure 4 A magnified schematic diagram of the part marked by the middle circle.

[0020] Figure 6 This is a schematic diagram of the limiting groove structure of this utility model.

[0021] Figure 7 for Figure 6 A magnified schematic diagram of the part marked by the middle circle.

[0022] Figure 8 This is a schematic diagram of the drive mechanism structure of this utility model.

[0023] Figure 9 for Figure 8 A magnified view of the structure of the circled area on the right side of the diagram.

[0024] Figure 10 for Figure 8 A magnified view of the structure of the circled area on the left side of the middle section.

[0025] Reference numerals: 1-Support frame; 2-Steel pipe; 3-Limiting mechanism; 4-Clamping mechanism; 5-Drive mechanism; 101-Mounting plate; 102-Support column; 301-Limiting groove; 302-Positioning groove; 303-First limiting rod; 401-Upper sliding block; 402-Moving rod; 403-Anti-slip pad; 404-First connecting block; 405-First connecting rod; 406-Fixed shaft; 407-Second limiting rod; 408-Moving cylinder; 409-Screw shaft; 410-Rotating rod; 411-Handle; 412-Sliding shaft; 413-Lower sliding block; 414-Second connecting block; 415-Second connecting rod; 501-Stop block; 502-Drive shaft; 503-Positioning block; 504-Limiting block; 505-Enclosure plate; 506-Rack; 507-Motor; 508-Third connecting rod; 509-Gear. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0027] Example

[0028] As attached Figure 1 To the attached Figure 5As shown, this utility model discloses a limiting device for a steel pipe forming equipment, including a mounting plate 101, a steel pipe 2 mounted on the mounting plate 101, and a driving mechanism 5 mounted below the mounting plate 101. Two limiting grooves 301 are symmetrically arranged on the mounting plate 101. Each limiting groove 301 is formed by a horizontal groove and inclined grooves installed at both ends of the horizontal groove, with the distance between the inclined grooves on the same side of the two horizontal grooves gradually increasing away from the horizontal groove. A positioning groove 302 is fixedly installed on the inner wall of each limiting groove 301. The positioning groove 302 is formed by a horizontal rod and inclined rods installed at both ends of the horizontal rod, with the horizontal rod located inside the horizontal groove and its axis coinciding with the center line of the horizontal groove. Each inclined rod... Fixedly installed on the inner wall of an inclined groove, the axis of each inclined rod coincides with the center line of an inclined groove. A set of clamping mechanisms 4 are installed on the inner wall of each limiting groove 301. The clamping mechanism 4 includes two upper sliding blocks 401 slidably installed on the outer surface of the positioning groove 302, a moving rod 402 installed on the side of the upper sliding block 401 facing the steel pipe 2, and a telescopic assembly installed on the upper sliding block 401. The telescopic assembly is connected to the moving rod 402, and can drive the moving rod 402 to move towards the direction closer to the steel pipe 2 through the telescopic assembly. The driving mechanism 5 is connected to the upper sliding block 401, and can drive the upper sliding block 401 to slide along the inner wall of the limiting groove 301 in the direction of arrow A, which is the transportation direction.

[0029] As attached Figure 2 To the attached Figure 7 As shown, two upper sliding blocks 401 located on the inner wall of the same limiting groove 301 have a first connecting block 404 fixedly installed on their opposite sides. The two first connecting blocks 404 are connected by a first connecting rod 405. The two ends of the first connecting rod 405 are rotatably connected to the two first connecting blocks 404 respectively. The two inclined grooves of the limiting groove 301 are of equal length, and the length of the inclined groove of the limiting groove 301 is greater than the length of the first connecting rod 405. Each inclined groove of the limiting groove 301 can accommodate both upper sliding blocks 401. When each inclined groove of the limiting groove 301 accommodates both upper sliding blocks 401, all moving rods 402 are disengaged from the steel pipe 2. The mounting plate 101 is also provided with a positioning groove 302. The positioning groove 302 is located between the two limiting grooves 301 and penetrates the entire mounting plate 101. The steel pipe 2 is slidably installed on the positioning groove 302. Before operation, all upper sliding blocks 401 are located in the inclined groove of the leftmost limiting groove 301.

[0030] As attached Figure 3 To the attached Figure 8As shown, this utility model discloses that an anti-slip sticker 403 is affixed to the side of the moving rod 402 facing the steel pipe 2, and a moving cylinder 408 is fixedly installed on the side of the moving rod 402 away from the steel pipe 2. A groove is provided on the outer surface of the moving cylinder 408, and a second limiting rod 407 is slidably installed on the inner wall of the groove. A fixed shaft 406 is fixedly installed on the side of the second limiting rod 407, and the fixed shaft 406 is fixedly installed on the side of the upper sliding block 401 away from the steel pipe 2. The width of the second limiting rod 407 is equal to the width of the groove in the moving cylinder 408. The moving cylinder 408 is located away from the moving rod 402. One end of 02 is provided with a threaded hole, and a spiral shaft 409 is installed in the threaded hole of the movable cylinder 408 to form a threaded fit. A circular through hole is provided on the side of the second limiting rod 407. The spiral shaft 409 is rotatably installed on the inner wall of the circular through hole of the second limiting rod 407. The inner diameter of the circular through hole of the second limiting rod 407 is equal to the outer diameter of the spiral shaft 409. A rotating rod 410 is fixedly installed at the end of the spiral shaft 409 away from the upper sliding block 401. A handle 411 is fixedly installed at the end of the rotating rod 410 away from the upper sliding block 401. A rubber sleeve is fitted on the outer surface of the handle 411.

[0031] As attached Figure 3 To the attached Figure 9 As shown, each upper sliding block 401 has a sliding shaft 412 fixedly installed on its lower side. The sliding shaft 412 is slidably installed on the inner wall of the limiting groove 301. The length of the sliding shaft 412 is equal to the thickness of the mounting plate 101. A lower sliding block 413 is fixedly installed at the end of the sliding shaft 412 away from the upper sliding block 401. The lower sliding block 413 is slidably installed on the lower side of the mounting plate 101. A second connecting block 414 is fixedly installed on the opposite side of the two lower sliding blocks 413. The two second connecting blocks 414 are connected by a second connecting rod 415. The two ends of the second connecting rod 415 are respectively connected to the two second connecting blocks 414. The connecting block 414 is rotatably connected and located in each; the drive mechanism 5 includes four positioning blocks 503, each positioning block 503 is fixedly installed on the lower side of a lower sliding block 413, each positioning block 503 has a circular through hole on its side, the circular through holes of two positioning blocks 503 on the same side are coaxial, a drive shaft 502 is slidably installed between the circular through holes of two positioning blocks 503 on the same side, a stop block 501 is fixedly installed at each end of the drive shaft 502, the stop block 501 is coaxial with the drive shaft 502, and the diameter of the stop block 501 is larger than the diameter of the drive shaft 502.

[0032] As attached Figure 8 To the attached Figure 10As shown, the drive mechanism 5 also includes two limiting blocks 504, which are symmetrically fixedly installed on the upper side of the mounting plate 101. A surrounding plate 505 is fixedly installed on one of the limiting blocks 504. A motor 507 is slidably installed on the inner side of the surrounding plate 505. The motor 507 is slidably installed between the two limiting blocks 504. A third connecting rod 508 is rotatably installed at the output end of the motor 507. The end of the third connecting rod 508 away from the motor 507 is rotatably connected to the drive shaft 502. The connection between the drive shaft 502 and the third connecting rod 508 is located between the horizontal grooves of the two limiting grooves 301. A gear 509 is fixedly installed at the output end of the motor 507. A rack 506 is fixedly installed on the mounting plate 101. The rack 506 meshes with the gear 509. Four support columns 102 are symmetrically fixedly installed on the lower side of the mounting plate 101.

[0033] The working principle of this embodiment is as follows.

[0034] (a) Place the steel pipe 2 on the positioning groove 302, then start the motor 507. The motor 507 drives the gear 509 to rotate. When the gear 509 rotates, under the action of the rack 506, the motor 507 slides on the inner wall of the enclosure 505 in the direction of arrow A. The motor 507 drives the drive shaft 502 to move through the third connecting rod 508. The drive shaft 502 drives the lower sliding block 413 to slide along the lower side of the mounting plate 101 through the positioning block 503. The lower sliding block 413 drives the sliding shaft 412 to slide along the inclined groove of the limiting groove 301, thereby driving the upper sliding block 401 to move closer to each other. When the sliding shaft 412 enters the horizontal groove of the limiting groove 301, the motor 507 stops working.

[0035] (ii) By rotating the lever 410 through the handle 411, the lever 410 drives the moving cylinder 408 to slide along the second limit rod 407, which in turn drives the moving rod 402 to move toward the steel pipe 2. When the moving rod 402 drives the anti-slip sticker 403 to press against the outer surface of the steel pipe 2, the lever 410 is stopped from being rotated. Then the motor 507 starts working again, and the anti-slip sticker 403 drives the steel pipe 2 to slide in the positioning groove 302 in the direction of arrow A.

[0036] (iii) When the sliding shaft 412 slides into the inclined groove of the right limit groove 301 along the direction of arrow A, the upper sliding block 401 drives the moving rod 402 to gradually move away from the steel pipe 2. When all the upper sliding blocks 401 have entered the inclined groove of the limit groove 301, each moving rod 402 drives an anti-slip sticker 403 to detach from the steel pipe 2, so that the processing worker in the next process can take the steel pipe 2 away. In this way, when the steel pipe 2 is no longer limited, there is no need for manual operation to separate it.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A limiting device for steel pipe forming equipment, comprising a mounting plate (101) in the middle capable of supporting and guiding the steel pipe (2), characterized in that, It also includes a drive mechanism (5) installed below the mounting plate (101). The mounting plate (101) has two limit grooves (301) arranged symmetrically. The limit groove (301) includes a horizontal groove that runs in the same direction as the steel pipe (2) and an inclined groove connected to both ends of the horizontal groove. The distance between the two corresponding inclined grooves decreases along the direction closer to the horizontal groove. Each limit groove (301) has a set of clamping mechanisms (4) installed on its inner wall. The clamping mechanism (4) includes two upper sliding blocks (401) that slide on the inner wall of the limit groove (301), a moving rod (402) that moves toward the center on the upper sliding blocks (401), and a telescopic assembly that moves on the upper sliding blocks (401). The telescopic assembly is connected to the moving rod (402). The telescopic assembly can drive the moving rod (402) to move toward the direction closer to the steel pipe (2). The drive mechanism (5) is connected to the upper sliding block (401), and the drive mechanism (5) can drive the upper sliding block (401) to slide along the inner wall of the limiting groove (301).

2. The limiting device for steel pipe forming equipment according to claim 1, characterized in that, Two upper sliding blocks (401) located on the inner wall of the same limiting groove (301) have a first connecting block (404) fixedly installed on their opposite sides. The two first connecting blocks (404) are connected by a first connecting rod (405), and the two ends of the first connecting rod (405) are rotatably connected to the two first connecting blocks (404) respectively.

3. The limiting device for steel pipe forming equipment according to claim 2, characterized in that, The two inclined grooves of the limiting groove (301) are of equal length, and the length of the inclined groove of the limiting groove (301) is greater than the length of the first connecting rod (405).

4. The limiting device for steel pipe forming equipment according to claim 2, characterized in that, A non-slip sticker (403) is affixed to the side of the moving rod (402) facing the steel pipe (2). A moving cylinder (408) is fixedly installed on the side of the moving rod (402) away from the steel pipe (2). A groove is provided on the outer surface of the moving cylinder (408). A second limiting rod (407) is slidably installed on the inner wall of the groove of the moving cylinder (408). The second limiting rod (407) is fixedly installed on the side of the upper sliding block (401) away from the steel pipe (2).

5. A limiting device for steel pipe forming equipment according to claim 4, characterized in that, The movable cylinder (408) has a threaded hole at one end away from the movable rod (402). A helical shaft (409) is installed in the threaded hole of the movable cylinder (408) and forms a threaded fit. A circular through hole is provided on the side of the second limiting rod (407). The helical shaft (409) is rotatably installed on the inner wall of the circular through hole of the second limiting rod (407). The inner diameter of the circular through hole of the second limiting rod (407) is equal to the outer diameter of the helical shaft (409).

6. A limiting device for steel pipe forming equipment according to claim 5, characterized in that, Each upper sliding block (401) has a sliding shaft (412) fixedly installed on its lower side. The sliding shaft (412) is slidably installed on the inner wall of the limiting groove (301). The length of the sliding shaft (412) is equal to the thickness of the mounting plate (101). A lower sliding block (413) is fixedly installed at the end of the sliding shaft (412) away from the upper sliding block (401). The lower sliding block (413) is slidably installed on the lower side of the mounting plate (101). A second connecting block (414) is fixedly installed on the opposite side of the two lower sliding blocks (413). The two second connecting blocks (414) are connected by a second connecting rod (415). The two ends of the second connecting rod (415) are rotatably connected to the two second connecting blocks (414) respectively.

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