Machining device for square pipe pile

Abstract

A square pipe pile machining device comprises an upper die and a lower die, a die cavity is formed at the joint of the upper die and the lower die, a square reinforcement cage is arranged in the die cavity in the length direction and formed by roll welding of main reinforcements and stirrups, flange plates are symmetrically arranged at the two ends of the square reinforcement cage in a sleeving mode, and paired threaded holes and positioning holes are machined in the flange plates. The threaded holes are communicated with the positioning holes through guide grooves, the positioning holes correspond to the main ribs one to one, the ends, away from the main ribs, of the positioning holes are machined to form positioning grooves, upset heads of the main ribs are embedded into the positioning grooves in a matched mode, end plates are correspondingly arranged on the two sides of the die cavity, and the end plates and the flange plate are locked and positioned through locking bolts. According to the device, the square reinforcement cage is positioned in the mold cavity defined by the upper mold and the lower mold through cooperation of the end plates and the flange plates, the overall structure is simple, and positioning is convenient and accurate.

Description

Technical Field

[0001] The utility model relates to a processing device for square pipe piles. Background Art

[0002] Pipe piles are a kind of precast building components. Compared with traditional on-site construction, the use of pipe piles can greatly improve the construction speed, reduce the labor intensity of construction workers, and improve the project quality. Therefore, pipe piles are widely used in construction fields such as industrial buildings, civil buildings, bridges, ports, railways or water conservancy projects. The shapes of pipe piles include cylindrical and cuboid. The existing pipe pile mold structures are mostly used for manufacturing cylindrical pipe piles, and the positioning structures are not suitable for the forming of square pipe piles. Therefore, there is an urgent need for a mold structure suitable for the forming of square pipe piles. Summary of the Utility Model

[0003] Aiming at the deficiencies in the above problems, the utility model provides a processing device for square pipe piles.

[0004] To achieve the above object, the utility model provides a processing device for square pipe piles, including an upper die and a lower die. A mold cavity is formed at the joint of the upper die and the lower die. The cross-sectional shape of the mold cavity is square. A square steel reinforcement cage is arranged along the length direction in the mold cavity. The square steel reinforcement cage is formed by roll welding main reinforcement bars and stirrups. Flange plates are symmetrically sleeved at both ends of the square steel reinforcement cage. A pair of threaded holes and positioning holes are processed on the flange plates. Each pair of the threaded holes and the positioning holes are connected by a guiding groove. The positioning holes correspond to the main reinforcement bars one by one. A positioning groove is processed at the end of the positioning hole far from the main reinforcement bar. The upset head of the main reinforcement bar is fitted and embedded in the positioning groove. End plates are correspondingly arranged on both sides of the mold cavity. The end plates are locked and positioned with the flange plates by locking bolts.

[0005] As a further improvement of the utility model, the outer diameter of the upset head is smaller than the inner diameter of the threaded hole. The inner diameter of the positioning hole matches the outer diameter of the main reinforcement bar. The width of the guiding groove matches the inner diameter of the positioning hole.

[0006] As a further improvement of the utility model, the flange plates are placed in the mold cavity, and the shape of the flange plates matches the mold cavity.

[0007] As a further improvement of the utility model, the central distance between each pair of the threaded holes and the positioning holes from the center of the flange plate is the same.

[0008] As a further improvement of the utility model, a central hole is processed in the middle of the flange plate. A convex platform integrated with the end plate is arranged on the side of the end plate facing the flange plate. The convex platform is fitted and extends into the central hole.

[0009] As a further improvement of the present utility model, through holes are machined on the end plate corresponding to the threaded holes one by one, the locking bolts pass through the through holes and are screwed and fixed with the threaded holes, and the inner edge of the end plate abuts against the end faces of the upper die and the lower die.

[0010] As a further improvement of the present utility model, the two sides of the upper die and the lower die are detachably connected by locking members. The lower edge of the upper die extends radially to form an upper edge, and the upper edge of the lower die extends radially to form a lower edge. The locking members are arranged between the upper edge and the lower edge.

[0011] As a further improvement of the present utility model, integral reinforcing ribs are uniformly arranged on the outer wall of the upper die, and integral reinforcing ribs I are uniformly arranged on the outer wall of the lower die. Both the reinforcing ribs and the reinforcing ribs I are in a semi-circular ring shape and are arranged correspondingly.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The device positions the square steel cage in the die cavity formed by the enclosure of the upper die and the lower die through the cooperation of the end plate and the flange. After the end of the main reinforcement of the steel cage passes through the threaded hole on the flange, by rotating the flange, the main reinforcement can slide into the positioning hole along the guiding groove, and the upset head at the end of the main reinforcement is embedded in the positioning groove. During the locking process of the end plate and the flange by the locking bolts, the flanges at both ends of the steel cage axially tension the steel cage, and the overall structure is simple, and the positioning is convenient and accurate. Description of the Drawings

[0014] Figure 1 It is a cross-sectional view of a processing device for a square pipe pile of the present utility model;

[0015] Figure 2 is Figure 1 the sectional view taken along the line A-A in

[0016] Figure 3 It is a schematic structural view of the flange 3;

[0017] Figure 4 is Figure 3 the sectional view taken along the line B-B in

[0018] Figure 5 It is a schematic structural view of the end plate 4.

[0019] In the figure: 1, upper die; 11, reinforcing rib; 12, upper edge; 2, square steel cage; 21, main reinforcement; 211, upset head; 22, stirrup; 3, flange; 31, central hole; 32, threaded hole; 33, guiding groove; 34, positioning hole; 35, positioning groove; 4, end plate; 41, through hole; 42, boss; 5, lower die; 51, reinforcing rib I; 52, lower edge; 6, die cavity; 7, locking bolt; 8, locking member. Detailed implementation mode

[0020] As shown in Figure 1 , a processing device for a square pipe pile according to the present utility model includes an upper die 1 and a lower die 5. A die cavity 6 is formed at the joint of the upper die 1 and the lower die 5. The cross-sectional shape of the die cavity 6 is square. A square steel reinforcement cage 2 is arranged along the length direction in the die cavity 6. The square steel reinforcement cage 2 is formed by roll welding main reinforcement bars 21 and stirrups 22. Flange plates 3 are symmetrically sleeved at both ends of the square steel reinforcement cage 2. Paired threaded holes 32 and positioning holes 34 are machined on the flange plates 3. Each pair of threaded holes 32 is communicated with the positioning holes 34 through a guide groove 33. The central distance between each pair of threaded holes 32 and the positioning holes 34 from the center of the flange plate 3 is the same. The positioning holes 34 correspond to the main reinforcement bars 21 one by one. A positioning groove 35 is machined at one end of the positioning hole 34 far from the main reinforcement bar 21. The upset head 211 of the main reinforcement bar 21 is fitted and embedded in the positioning groove 35. The outer diameter of the upset head 211 is smaller than the inner diameter of the threaded hole 32. The inner diameter of the positioning hole 34 matches the outer diameter of the main reinforcement bar 21. The width of the guide groove 33 matches the inner diameter of the positioning hole 34. End plates 4 are correspondingly arranged on both sides of the die cavity 6. The end plates 4 are locked and positioned with the flange plates 3 through locking bolts 7. The flange plates 3 are placed in the die cavity 6. The shape of the flange plates 3 matches that of the die cavity 6. A central hole 31 is machined in the middle of the flange plates 3. An integral boss 42 is arranged on one side of the end plate 4 facing the flange plate 3. The boss 42 is fitted and extends into the central hole 31. Through holes 41 are machined on the end plates 4 corresponding to the threaded holes 32 one by one. The locking bolts 7 pass through the through holes 41 and are screwed and fixed with the threaded holes 32. The inner edge of the end plate 4 abuts against the end faces of the upper die 1 and the lower die 5. The upper die 1 and the lower die 5 are detachably connected through locking members 8 on both sides. An upper edge 12 extends radially from the lower edge of the upper die 1. A lower edge 52 extends radially from the upper edge of the lower die 5. The locking members 8 are arranged between the upper edge 12 and the lower edge 52. Reinforcing ribs 11 are uniformly arranged on the outer wall of the upper die 1 in an integral manner. Reinforcing ribs I 51 are uniformly arranged on the outer wall of the lower die 5 in an integral manner. The reinforcing ribs 11 and the reinforcing ribs I 51 are both semi-circular rings and are correspondingly arranged.

[0021] The device positions the square steel reinforcement cage in the die cavity formed by enclosing the upper die and the lower die through the cooperation of the end plates and the flange plates. After the end of the main reinforcement bar of the steel reinforcement cage passes through the threaded hole on the flange plate, by rotating the flange plate, the main reinforcement bar can slide into the positioning hole along the guide groove, and the upset head at the end of the main reinforcement bar is embedded in the positioning groove. During the locking process of the end plate and the flange plate through the locking bolt, the flange plates at both ends of the steel reinforcement cage axially tension the steel reinforcement cage. The overall structure is simple, and the positioning is convenient and accurate.

[0022] During specific use, for the convenience of understanding the present utility model, it is described in combination with the accompanying drawings;

[0023] During installation, first place the steel reinforcement cage into the lower mold, and then fit flange plates on both ends of the steel reinforcement cage. The upset heads at the ends of the main steel bars of the steel reinforcement cage first pass through the threaded holes of the flange plates correspondingly. Rotate the flange plates to slide the main steel bars into the positioning holes along the guiding grooves. Then pull the flange plates outwards to embed the upset heads at the ends of the main steel bars into the positioning grooves outside the positioning holes to prevent relative rotation between the steel reinforcement cage and the flange plates. Install the end plates on the outside of the flange plates through locking bolts. Do not tighten the locking bolts first. Fill the lower mold with the prepared concrete. Then install the upper mold. The upper mold and the lower mold are connected and fixed through locking components. The flange plates are located inside the mold cavity, and the end plates are located outside the mold cavity. At this time, tighten the locking bolts. During the screwing process, the flange plates at both ends of the steel reinforcement cage move towards the end plate side respectively, thereby axially tensioning and positioning the steel reinforcement cage. After the overall assembly is completed, processes such as centrifugal forming can be carried out to manufacture square pipe piles.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A processing device for square pipe piles, characterized in that: It includes an upper die (1) and a lower die (5). A mold cavity (6) is formed at the joint of the upper die (1) and the lower die (5). The cross-sectional shape of the mold cavity (6) is square. A square steel reinforcement cage (2) is arranged along the length direction in the mold cavity (6). The square steel reinforcement cage (2) is formed by roll welding main reinforcements (21) and stirrups (22). Flange plates (3) are symmetrically sleeved at both ends of the square steel reinforcement cage (2). Pairs of threaded holes (32) and positioning holes (34) are machined on the flange plates (3). Each pair of the threaded holes (32) is communicated with the positioning hole (34) through a guiding groove (33). The positioning holes (34) correspond to the main reinforcements (21) one by one. A positioning groove (35) is machined at one end of the positioning hole (34) far from the main reinforcement (21). The upset head (211) of the main reinforcement (21) is fitted and embedded into the positioning groove (35). End plates (4) are correspondingly arranged on both sides of the mold cavity (6). The end plates (4) are locked and positioned with the flange plates (3) through locking bolts (7).

2. The processing device for a square pipe pile according to claim 1, characterized in that: The outer diameter of the upset head (211) is smaller than the inner diameter of the threaded hole (32). The inner diameter of the positioning hole (34) matches the outer diameter of the main reinforcement (21). The width of the guiding groove (33) matches the inner diameter of the positioning hole (34).

3. The processing device for a square pipe pile according to claim 1, characterized in that: The flange plates (3) are placed in the mold cavity (6). The shape of the flange plates (3) matches that of the mold cavity (6).

4. The processing device for a square pipe pile according to claim 1, characterized in that: The central distance between each pair of the threaded holes (32) and the positioning hole (34) from the center of the flange plate (3) is the same.

5. The processing device for a square pipe pile according to claim 1, characterized in that: A central hole (31) is machined in the middle of the flange plate (3). An integral boss (42) is arranged on the side of the end plate (4) facing the flange plate (3). The boss (42) is fitted and extends into the central hole (31).

6. The processing device for a square pipe pile according to claim 1, characterized in that: Through holes (41) are machined on the end plates (4) corresponding to the threaded holes (32) one by one. The locking bolts (7) pass through the through holes (41) and are screwed and fixed with the threaded holes (32). The inner edge of the end plate (4) abuts against the end faces of the upper die (1) and the lower die (5).

7. The processing device for a square pipe pile according to claim 1, characterized in that: Both sides of the upper die (1) and the lower die (5) are detachably connected through locking parts (8). An upper edge (12) extends radially from the lower edge of the upper die (1). A lower edge (52) extends radially from the upper edge of the lower die (5). The locking parts (8) are arranged between the upper edge (12) and the lower edge (52).

8. The processing device for a square pipe pile according to claim 1, characterized in that: Integral reinforcing ribs (11) are uniformly arranged on the outer wall of the upper die (1). Integral reinforcing ribs I (51) are uniformly arranged on the outer wall of the lower die (5). The reinforcing ribs (11) and the reinforcing ribs I (51) are both semi-circular rings and are correspondingly arranged.

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