Steel pipe bending forming die

Abstract

The utility model discloses a steel pipe bending forming die which comprises a die base and an elastic piece, a rubber pad used for protecting the outer surface of a steel pipe body is arranged in the middle of the outer wall of the elastic piece, the steel pipe bending forming die further comprises an adjusting assembly and a pressing assembly, and the adjusting assembly comprises a guide base fixedly installed on the outer wall of the top of the die base; a two-way lead screw is rotationally installed in the middle of the guide seat through a bearing, a first threaded block and a second threaded block are arranged on the two sides of the outer wall of the two-way lead screw correspondingly, one end of the elastic piece and the first threaded block are rotationally arranged through a first adapter shaft, and the other end of the elastic piece and the second threaded block are rotationally arranged through a second adapter shaft. Through mutual cooperation of the elastic piece, the rubber pad, the fixing ferrule and the adjusting assembly, the possibility that the surface of the steel pipe body is damaged can be reduced while the steel pipe body is bent and formed, the overall quality of the steel pipe body is improved, in addition, a worker can adjust the radian of the elastic piece through the adjusting assembly, and therefore various machining requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe production, in particular to a steel pipe bending forming die. Background Art

[0002] Steel pipes are steel products with hollow cross-sections and lengths much greater than their diameter or circumference. Steel pipes are classified into round, square, rectangular and special-shaped steel pipes according to their cross-sectional shapes; they are classified into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes according to their materials; they are classified into steel pipes for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc. according to their uses.

[0003] Steel pipe bending is a common process in industrial production. The existing steel pipe bending forming die is generally composed of an upper die and a lower die, and the upper die is conical and the lower die is V-shaped. When in use, the staff will first place the steel pipe in the lower die, and then push the upper die through an external hydraulic telescopic rod to bend the steel pipe. However, this method easily causes damage to the corner position of the formed steel pipe, resulting in a reduction in the overall quality of the formed steel pipe. For this reason, a steel pipe bending forming die is provided. Utility Model Content

[0004] The utility model aims to provide a steel pipe bending forming die to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the specific technical scheme of the utility model is as follows: a steel pipe bending and forming die, comprising a die base and an elastic member, the elastic member being slidably arranged in the middle of the outer wall of the die base, and being used for bending and forming a steel pipe body, a rubber pad for protecting the outer surface of the steel pipe body is arranged in the middle of the outer wall of the elastic member, and a fixing ring is fixedly installed in the middle of the outer wall of the elastic member away from the rubber pad, and also comprises: an adjustment component for fixing and adjusting the curvature of the elastic member, and a pressure component for supporting the elastic member, the adjustment component comprises a guide seat fixedly installed on the outer wall of the top of the die base, a bidirectional lead screw is rotatably installed in the middle of the guide seat through a bearing, a first thread block and a second thread block are respectively arranged on both sides of the outer wall of the bidirectional lead screw, one end of the elastic member is rotatably arranged with the first thread block through a first transfer shaft, and the other end of the elastic member is rotatably arranged with the second thread block through a second transfer shaft.

[0006] Preferably, the fixing ring is designed in a U-shaped structure, the first threaded block and the second threaded block are positioned correspondingly, and the first threaded block and the second threaded block are both engaged with the bidirectional lead screw through threads.

[0007] Preferably, a limiting groove is formed through the middle of the outer wall of the guide seat, a limiting rod is provided in the middle of the inner wall of the limiting groove, and a tightening spring is wound around the outer wall of the limiting rod between the first threaded block and the second threaded block.

[0008] Preferably, one end of the tightening spring is connected to the first threaded block, and the other end of the tightening spring is connected to the second threaded block, and a power assisting disc for driving the bidirectional screw is fixedly mounted in the middle of the outer end of the bidirectional screw.

[0009] Preferably, the pressure-applying assembly includes a mounting block slidably arranged on the outer wall of the mold base at the position of the elastic member, and a hydraulic telescopic rod for pushing and pulling the mounting block, wherein the hydraulic telescopic rod corresponds to the position of the mounting block, the fixed end of the hydraulic telescopic rod is connected and assembled with the mold base, and the output end of the hydraulic telescopic rod is connected and assembled with the mounting block.

[0010] Preferably, a sleeve rod is fixedly provided on the outer wall of the mounting block, a movable rod is elastically installed on the inner wall of the sleeve rod via a reset spring, and an arc-surface top block for squeezing the elastic member is fixedly provided on the outer wall of the movable rod away from the middle of one end of the reset spring.

[0011] The utility model has the following advantages for a steel pipe bending forming die:

[0012] 1. The utility model can reduce the possibility of surface damage while bending the steel pipe body through the mutual cooperation of the elastic part, rubber pad, fixed ring and adjustment component, thereby improving the overall quality of the steel pipe body. In addition, the staff can adjust the curvature of the elastic part through the adjustment component to meet various processing requirements.

[0013] 2. The utility model can support the elastic member with adjusted curvature by providing a pressure component, thereby improving the stability of the elastic member during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the local structure of the utility model;

[0017] Figure 3It is a planar structural sectional view of the utility model.

[0018] Explanation of the markings in the figure: 1. Die base; 2. Adjustment assembly; 201. Guide seat; 202. First threaded block; 203. Bidirectional lead screw; 204. Second threaded block; 205. First transfer shaft; 206. Second transfer shaft; 207. Power assist plate; 208. Limiting groove; 209. Fastening spring; 210. Limiting rod; 3. Elastic member; 301. Rubber pad; 302. Fixed ring; 4. Steel pipe body; 5. Pressure assembly; 501. Mounting block; 502. Hydraulic telescopic rod; 503. Reset spring; 504. Sleeve rod; 505. Arc top block; 506. Movable rod. DETAILED DESCRIPTION

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0023] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0024] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a steel pipe bending forming die of the utility model in conjunction with the accompanying drawings.

[0025] like Figure 1-3 As shown, a steel pipe bending and forming die of the utility model comprises a die base 1 and an elastic member 3. The elastic member 3 is slidably arranged in the middle of the outer wall of the die base 1 for bending and forming a steel pipe body 4. A rubber pad 301 for protecting the outer surface of the steel pipe body 4 is arranged in the middle of the outer wall of the elastic member 3. A fixing ring 302 is fixedly installed in the middle of the outer wall of the elastic member 3 away from the rubber pad 301 for fixing the steel pipe body 4. The fixing ring 302 is designed in a U-shaped structure. A reserved opening is provided on the outer wall of the die base 1 at the position of the steel pipe body 4 to facilitate the bending and forming of the steel pipe body 4. The device also includes: an adjusting component 2 for fixing and adjusting the curvature of the elastic member 3, and a pressure component 5 for supporting the elastic member 3.

[0026] Specifically, the adjustment component 2 includes a guide seat 201 fixedly mounted on the outer wall of the top of the mold base 1, a bidirectional lead screw 203 is rotatably mounted on the middle part of the guide seat 201 through a bearing, and a first thread block 202 and a second thread block 204 are respectively arranged on both sides of the outer wall of the bidirectional lead screw 203, which are used to apply pressure to the two ends of the elastic member 3, the first thread block 202 and the second thread block 204 are located correspondingly, and the first thread block 202 and the second thread block 204 are both engaged with the bidirectional lead screw 203 through threads, one end of the elastic member 3 is rotatably arranged with the first thread block 202 through a first transfer shaft 205, and the other end of the elastic member 3 is rotatably arranged with the second thread block 204 through a second transfer shaft 206, and the guide seat 20 A limiting groove 208 is provided in the middle of the outer wall of the limiting groove 208, and a limiting rod 210 is provided in the middle of the inner wall of the limiting groove 208, which is used to guide and limit the first thread block 202 and the second thread block 204 during the movement. The outer wall of the limiting rod 210 is located between the first thread block 202 and the second thread block 204 and is wound with a fastening spring 209, which is used to fasten the first thread block 202 and the second thread block 204 to improve the stability of the connection. One end of the fastening spring 209 is connected to the first thread block 202, and the other end of the fastening spring 209 is connected to the second thread block 204. A power assist disc 207 for driving the bidirectional lead screw 203 is fixedly installed in the middle of the outer end of the bidirectional lead screw 203.

[0027] Specifically, the pressure-applying assembly 5 includes a mounting block 501 slidably arranged on the outer wall of the mold base 1 at the position of the elastic member 3, and a hydraulic telescopic rod 502 for pushing and pulling the mounting block 501. The hydraulic telescopic rod 502 corresponds to the position of the mounting block 501, the fixed end of the hydraulic telescopic rod 502 is connected and assembled with the mold base 1, and the output end of the hydraulic telescopic rod 502 is connected and assembled with the mounting block 501, a sleeve rod 504 is fixedly arranged on the outer wall of the mounting block 501, and a movable rod 506 is elastically installed on the inner wall of the sleeve rod 504 through a reset spring 503, and an arc-surface top block 505 for squeezing the elastic member 3 is fixedly arranged on the middle part of the outer wall of the movable rod 506 away from the reset spring 503.

[0028] According to the above, the utility model can reduce the possibility of surface damage while bending the steel pipe body 4 through the mutual cooperation of the elastic part 3, the rubber pad 301, the fixed ring 302 and the adjustment component 2, thereby improving the overall quality of the steel pipe body 4. In addition, the staff can adjust the curvature of the elastic part 3 through the adjustment component 2 to meet various processing requirements; the utility model can support the elastic part 3 with adjusted curvature by setting a pressure component 5, thereby improving the stability of the elastic part 3 during use.

[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A steel pipe bending forming die, characterized in that: The invention comprises a die base (1) and an elastic member (3), wherein the elastic member (3) is slidably arranged in the middle of the outer wall of the die base (1) and is used to bend and shape a steel pipe body (4), a rubber pad (301) is arranged in the middle of the outer wall of the elastic member (3) for protecting the outer surface of the steel pipe body (4), a fixing ring (302) is fixedly installed in the middle of the outer wall of the elastic member (3) away from the rubber pad (301), and further comprises: an adjusting component (2) for fixing and adjusting the curvature of the elastic member (3), and a pressure component for supporting the elastic member (3). (5), the adjustment component (2) comprises a guide seat (201) fixedly mounted on the outer wall of the top of the mold base (1), a bidirectional lead screw (203) is rotatably mounted in the middle of the guide seat (201) via a bearing, a first threaded block (202) and a second threaded block (204) are respectively arranged on both sides of the outer wall of the bidirectional lead screw (203), one end of the elastic member (3) is rotatably arranged with the first threaded block (202) via a first transfer shaft (205), and the other end of the elastic member (3) is rotatably arranged with the second threaded block (204) via a second transfer shaft (206).

2. A steel pipe bending forming die according to claim 1, characterized in that: The fixing ring (302) is designed as a U-shaped structure, the first thread block (202) and the second thread block (204) are located correspondingly, and the first thread block (202) and the second thread block (204) are both engaged with the bidirectional lead screw (203) through threads.

3. The steel pipe bending die according to claim 1, characterized in that: A limiting groove (208) is provided through the middle of the outer wall of the guide seat (201), a limiting rod (210) is provided in the middle of the inner wall of the limiting groove (208), and a tightening spring (209) is wound around the outer wall of the limiting rod (210) between the first threaded block (202) and the second threaded block (204).

4. A steel pipe bending forming die according to claim 3, characterized in that: One end of the tightening spring (209) is connected to the first threaded block (202), and the other end of the tightening spring (209) is connected to the second threaded block (204). A power assist disc (207) for driving the bidirectional lead screw (203) is fixedly mounted at the middle of the outer end of the bidirectional lead screw (203).

5. The steel pipe bending die according to claim 1, characterized in that: The pressure-applying assembly (5) comprises a mounting block (501) slidably arranged on the outer wall of the mold base (1) at the position of the elastic member (3), and a hydraulic telescopic rod (502) for pushing and pulling the mounting block (501), wherein the hydraulic telescopic rod (502) corresponds to the position of the mounting block (501), the fixed end of the hydraulic telescopic rod (502) is connected and assembled with the mold base (1), and the output end of the hydraulic telescopic rod (502) is connected and assembled with the mounting block (501).

6. A steel pipe bending forming die according to claim 5, characterized in that: A sleeve rod (504) is fixedly provided on the outer wall of the mounting block (501), a movable rod (506) is elastically installed on the inner wall of the sleeve rod (504) via a return spring (503), and an arc-surface top block (505) for pressing the elastic member (3) is fixedly provided at the middle of the outer wall of the movable rod (506) away from the return spring (503).

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