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CN-122007324-A - Bending device for processing ship parts

CN122007324ACN 122007324 ACN122007324 ACN 122007324ACN-122007324-A

Abstract

The application relates to a bending device for processing ship parts, and relates to the technical field of ship manufacturing. The device comprises a bending table, a bending limiting assembly, a bending traction assembly, a bending abutting seat, an end position extrusion assembly and a side position extrusion assembly, wherein the bending traction assembly is matched with the bending limiting assembly to complete U-shaped bending of cylindrical steel and forming of a chain ring of an anchor, the bending limiting assembly is driven to apply extrusion force to the chain ring of the anchor when the bending traction assembly is displaced, the end position extrusion assembly is matched with the bending abutting seat to extrude two ends of the chain ring of the anchor, and the side position extrusion assembly is extruded from two sides to realize riveting of the chain ring and the chain ring. The application can improve the bending forming precision of the columnar steel and enhance the connection reliability of the chain links and the chain links.

Inventors

  • LI JIAHAO
  • LI BIAO
  • YU WENSHENG

Assignees

  • 福建博洋船舶工业有限公司
  • 泉州师范学院

Dates

Publication Date
20260512
Application Date
20260410

Claims (9)

  1. 1. A bending device for machining ship parts is characterized by comprising a bending table (1), wherein a bending limiting assembly (2) is arranged on the bending table (1), a bending traction assembly (3) is arranged on the bending table (1), cylindrical steel is bent into a U-shaped structure through the cooperation of the bending traction assembly (3) and the bending limiting assembly (2), the cylindrical steel is bent into an anchor chain ring through twice bending, the bending traction assembly (3) drives the bending limiting assembly (2) to generate extrusion force on the anchor chain ring in the displacement process, a bending abutting seat (4) is fixed on the bending table (1), an end position extrusion assembly (5) is arranged on the bending table (1), the end position extrusion assembly (5) is matched with the bending abutting seat (4) to extrude two ends of the anchor chain ring, a side position extrusion assembly (6) is arranged on the bending table (1), and the side position extrusion assembly (6) extrudes two sides of the anchor chain ring to rivet the anchor chain ring together with the anchor chain ring (7).
  2. 2. The bending device for processing ship parts according to claim 1, wherein dovetail grooves (81) are formed in two ends of the chain ring (8), positioning holes (82) are formed in the middle of the chain ring (8), positioning pins (71) are arranged at one ends of the chain links (7), dovetails (72) are arranged at one ends, far away from the positioning pins (71), of the chain links (7), the dovetails (72) are clamped with the dovetail grooves (81), and the sections of the dovetail grooves (81) and the dovetails (72) are of a pair of mutually symmetrical trapezoid structures.
  3. 3. A bending apparatus for processing marine components as claimed in claim 2, wherein a pair of mutually symmetrical trapezoidal grooves are formed in the ends of the dovetail (72), and slots are formed in the bottom corners of the grooves so that the dovetail (72) opens around during the stamping process.
  4. 4. A bending device for processing ship parts according to claim 3, characterized in that a rice-shaped groove is formed in the end part of the positioning pin (71), and the diameter of the end part of the positioning pin (71) is increased by expanding around after the positioning pin is extruded by the side extrusion assembly (6), so that the positioning pin is completely locked on the chain ring.
  5. 5. The bending device for processing ship parts according to claim 4, wherein the bending traction component (3) comprises a U-shaped traction frame (31) which is slidably mounted on a bending table (1), a telescopic hydraulic cylinder (32) is fixed on the bending table (1), the telescopic hydraulic cylinder (32) is used for controlling the displacement of the U-shaped traction frame (31), a lower bending part (33) is fixed on the U-shaped traction frame (31), a lifting part (34) is mounted on the U-shaped traction frame (31), an upper bending part (35) is mounted on the lifting part (34), the lower bending part (33) and the upper bending part (35) are combined and separated under the control of the lifting part (34), bending arc grooves (352) are formed on the lower bending part (33) and the upper bending part (35), the U-shaped grooves are formed after the bending arc grooves (352) are spliced, the surfaces of the U-shaped grooves are provided with shallow grooves, the U-shaped grooves are used for limiting the upward and downward displacement and the leftward and rightward deflection of columnar steel, an upper bending part (35) is mounted on the lifting part (34), a lower clamping part (351) is mounted on the upper bending part (351) and a lower clamping part (351) is mounted on the upper clamping part (351), the delay telescopic part (353) is fixed on the upper bending part (35).
  6. 6. The bending device for processing ship parts according to claim 5, wherein the bending limiting assembly (2) comprises a pair of rotary offset tables (21) rotatably mounted on the bending tables (1), limiting wheels (22) are rotatably mounted on the rotary offset tables (21), a pair of rotary gears (23) are rotatably mounted on the lower sides of the bending tables (1), the rotary gears (23) are connected with the rotary offset tables (21) through rotating shafts, racks (36) meshed with the rotary gears (23) are mounted on two sides of the U-shaped traction frame (31), a gear locking assembly (9) is slidably mounted on the bending tables (1), the gear locking assembly (9) is used for locking the rotary gears (23), wedge-shaped pushing protrusions (37) for controlling the gear locking assembly (9) to move downwards are fixed on the U-shaped traction frame (31), the U-shaped traction frame (31) is divided into a locking section (311) and a turnover section (312), and the racks (36) and the wedge-shaped pushing protrusions (37) are fixed on the turnover section (312).
  7. 7. The bending device for processing ship parts according to claim 6, wherein the gear locking assembly (9) comprises a plurality of sliding rods (91) fixed on the bending table (1), a displacement sliding table (92) is slidably mounted on the sliding rods (91), a plurality of limiting teeth (93) are fixed on the displacement sliding table (92), the limiting teeth (93) are used for locking the rotary gear (23), a spring (94) is sleeved on the sliding rods (91), the spring (94) is used for resetting the displacement sliding table (92), and a wedge-shaped strip (95) matched with the wedge-shaped pushing protrusion (37) is fixed on the displacement sliding table (92).
  8. 8. The bending device for processing ship parts according to claim 7, wherein the end position extrusion assembly (5) comprises a hydraulic telescopic rod (51) fixed on a bending table (1), an arc pushing table (52) is slidably mounted on the bending table (1), the arc pushing table (52) is used for preventing left and right displacement of a chain ring (8), a first arc-shaped groove (53) is formed in the arc pushing table (52), the first arc-shaped groove (53) is used for preventing up and down displacement of the chain ring (8), the bending abutting seat (4) is of an arc-shaped structure, and a second arc-shaped groove (41) is formed in the bending abutting seat (4).
  9. 9. The bending device for processing ship parts according to claim 8, wherein the lateral extrusion assembly (6) comprises extrusion telescopic members (61) fixed at two sides of the bending table (1), extrusion tables (62) slidably mounted at two sides of the bending table (1), an arc extrusion groove (63) is formed in one side, close to the chain ring (8), of the extrusion tables (62), and a spreading protrusion (64) is arranged in the arc extrusion groove (63), and the spreading protrusion (64) is used for spreading the positioning pins (71) and the dovetails (72) to the periphery.

Description

Bending device for processing ship parts Technical Field The application relates to the technical field of bending of ship parts, in particular to a bending device for processing ship parts. Background In the marine industry, the structural strength and the connection reliability of the anchor chain, which is used as a core safety component of a marine mooring system, are directly related to the sailing safety. In the prior art, a sectional bending process is generally adopted to process the cylindrical steel, the steel is bent into a U-shaped structure through the cooperation of a fixed limiting die and a traction mechanism, and then is bent for the second time to form an anchor chain ring, and meanwhile, a pressure is applied to the end part and the lateral direction of the anchor chain ring by utilizing a supporting seat and an extrusion device, so that the mechanical connection between the chain link and the chain ring is realized. The process forms a standardized operation flow on the production line of the ship parts, and the hydraulic drive system controls traction displacement and extrusion action to complete the forming and riveting procedures of the anchor chain ring. However, in the prior art, displacement deviation is easy to occur in the bending process of cylindrical steel, so that the shape precision of the anchor chain ring is insufficient, and the connection stability of the chain links and the chain ring is difficult to continuously guarantee. Disclosure of Invention The application aims to provide a bending device for processing ship parts, which solves the technical problems that 'displacement deviation is easy to occur in the bending process of cylindrical steel, the shape precision of anchor chain rings is insufficient, and the connection stability of chain links and chain rings is difficult to continuously guarantee'. The bending device for processing the ship parts comprises a bending table, wherein a bending limiting assembly and a bending traction assembly are arranged on the bending table, the bending traction assembly and the bending limiting assembly are matched to bend cylindrical steel into a U-shaped structure, an anchor chain ring is formed through twice bending, the bending traction assembly drives the bending limiting assembly to generate extrusion force on the anchor chain ring in the displacement process, a bending abutting seat is fixed on the bending table, an end position extrusion assembly and a side position extrusion assembly are also arranged on the bending table, the end position extrusion assembly and the bending abutting seat are matched to extrude two ends of the anchor chain ring, and the side position extrusion assembly extrudes from two sides of the anchor chain ring to rivet the chain link and the chain ring together. Furthermore, the two ends of the chain link are provided with dovetail grooves, the middle of the chain link is provided with a positioning pin matched with the positioning hole, one end of the chain link, which is far away from the positioning pin, is provided with a dovetail joint which is clamped with the dovetail grooves, the sections of the dovetail grooves and the dovetail joint are of a pair of mutually symmetrical trapezoid structures, and the clamping fit degree is improved. Furthermore, the end part of the dovetail is provided with a pair of grooves with mutually symmetrical trapezoid structures, the bottom angle position of each groove is provided with a slot, so that the dovetail can be opened to the periphery in the stamping process, the clamping tightness with the dovetail groove is enhanced, the end part of the positioning pin is provided with a Chinese character 'mi' shaped slot, the end part of the positioning pin is extruded by the side extrusion assembly to be opened to the periphery, the diameter of the positioning pin is enlarged, and the positioning pin can be completely locked in the positioning hole of the chain ring to prevent loosening. Further, the bending traction assembly comprises a U-shaped traction frame which is slidably arranged on a bending table, a telescopic hydraulic cylinder is fixed on the bending table, the output end of the telescopic hydraulic cylinder is connected with the U-shaped traction frame and used for controlling the horizontal displacement of the U-shaped traction frame, a lower bending piece is fixed on the U-shaped traction frame, a lifting piece is also arranged on the U-shaped traction frame, the output end of the lifting piece is connected with an upper bending piece, and the combination and the separation of the lower bending piece and the upper bending piece can be controlled through the lifting piece. The bending device comprises a lower bending piece, an upper clamping piece, a lower clamping piece, a time delay telescopic piece and a time delay telescopic piece, wherein the opposite sides of the lower bending piece and the upper bending piece are respectively provided with a bendi