Single-head pipe bending machine with limiting structure

Abstract

The single-head pipe bending machine with the limiting structure comprises a base, one side of the top face of the base is rotationally connected with a circular truncated cone, the top face of the circular truncated cone is in radial sliding connection with two symmetrical clamping plates, the top face of the other side of the base is transversely provided with a first groove, a driving piece is arranged in the first groove, and the top face of the driving piece is fixedly connected with a supporting block. The side, close to the circular truncated cone, of the supporting block is vertically and slidably connected with two arc-shaped blocks in vertical mirror symmetry, a cavity is formed in the supporting block, a fastener is movably connected into the cavity, and the outer side of the supporting block is movably connected with a bolt in transmission connection with the fastener. The two arc-shaped blocks which are in mirror symmetry up and down are movably connected to the supporting block, and the fastener connected with the arc-shaped blocks is movably connected into the cavity in the supporting block, so that when a pipe fitting is bent, an automatic limiting and clamping effect is achieved, the pipe fitting does not need to be manually held by hands to be bent, the two hands of a worker are liberated, and the labor intensity of the worker is reduced. And meanwhile, the workload of workers is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending machines, in particular to a single-head pipe bending machine with a limiting structure. Background Art

[0002] A pipe bender is a machine used for bending pipes and can also be used as a jack. Pipe bender can be roughly divided into CNC pipe bender, hydraulic pipe bender, etc. It is mainly used for laying and repairing pipes in power construction, road and railway construction, boilers, bridges, ships, furniture, decoration, etc. It has the advantages of multiple functions, reasonable structure, and simple operation. In addition to the pipe bending function, this machine can also use the cylinder as a hydraulic jack. Compared with CNC pipe bending equipment, it has the characteristics of low price and easy use, and occupies a leading position in the domestic pipe bending machine market.

[0003] However, although today's pipe bending machines can automatically bend pipes, they lack a limiting mechanism. When bending the pipe, workers are required to manually hold the other side of the pipe, and then the pipe bending machine bends the other side of the pipe, which undoubtedly increases the workload of the workers. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a single-head pipe bending machine with a limiting structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a single-head pipe bending machine with a limited position structure, including a base, one side of the top surface of the base is rotatably connected to a truncated table, the top surface of the truncated table is radially slidably connected to two symmetrical clamping plates, and a first groove is laterally opened on the top surface of the other side of the base, a driving member is provided in the first groove, the top surface of the driving member is fixedly connected to a support block, and the support block is vertically slidably connected to two upper and lower mirror-symmetrical arc blocks on one side close to the truncated table, a cavity is provided in the support block, a fastener is movably connected in the cavity, and the outer side of the support block is movably connected to a bolt that is transmission-connected to the fastener.

[0006] As a further description of the above technical solution: a third groove is provided on the top surface of the base, a second drive motor is vertically fixed in the third groove, an output end of the second drive motor is connected to a rotating shaft, and the rotating shaft is vertically fixed to the bottom surface of the truncated table.

[0007] As a further description of the above technical solution: the fastener includes two support plates vertically slidably connected to the cavity, the support block has two upper and lower mirror-symmetrical through grooves passing through one side of the support block close to the truncated cone, and the two through grooves are connected to the cavity, the two support plates pass through the two through grooves respectively, and are fixedly connected to the two arc blocks respectively, the end of the bolt rotates through the cavity and is rotatably connected to the bottom surface of the cavity, two retaining blocks are vertically slidably connected in the cavity, the top surfaces of the two retaining blocks are penetrated by second threaded holes, and the threads of the two second threaded holes are in opposite directions, the bolt is threadedly sleeved in the two second threaded holes, the top surfaces of the two support plates are penetrated by through holes, and the bolt axially passes through the through holes.

[0008] As a further description of the above technical solution: two second sliding grooves that are mirror-symmetrical in upper and lower directions are vertically opened on the inner wall on one side of the cavity, a second slider fixedly connected to the support plate is slidably connected in the second sliding groove, a spring is fixedly connected between the second slider and the second sliding groove, and two fourth sliding grooves that are mirror-symmetrical are vertically opened on the inner wall on the other side of the cavity, two fourth sliders are vertically slidably connected in each of the fourth sliding grooves, and one fourth slider is fixedly connected on both sides of each of the stop blocks.

[0009] As a further description of the above technical solution: the driving member includes a first driving motor horizontally fixed in the first groove, the output end of the first driving motor is transmission-connected to the first screw, the end of the first screw is rotationally connected to the inner wall on the other side of the first groove, a first sliding groove is horizontally opened on the bottom surface of the first groove, a first slider is slidingly connected in the first sliding groove, the top surface of the first slider is fixedly connected to a guide block, the guide block is fixed on the bottom surface of the support block, the side surface of the guide block horizontally passes through a first threaded hole, and the first screw is threadedly connected in the first threaded hole.

[0010] As a further description of the above technical solution: a second groove is radially opened on the top surface of the truncated cone, a bidirectional motor is horizontally fixed at the center of the second groove, the two output ends of the bidirectional motor are each transmission connected to a second screw, the two second screws are respectively horizontally connected to the inner walls on both sides of the second groove, a third sliding groove is horizontally opened on the inner walls on both sides of the second groove, each of the third sliding grooves is slidably connected to two third sliders, a clamping plate is commonly fixed between every two third sliders, the two clamping plates are both located in the second groove, the two clamping plates both horizontally penetrate a third threaded hole, the threads of the two third threaded holes are in opposite directions, and the two clamping plates are respectively sleeved on the outer edges of the two second screws through the two third threaded holes.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the single-head pipe bending machine with a limiting structure has two upper and lower mirror-symmetrical arc blocks movably connected on the support block, and a fastener connected to the arc block is movably connected in the cavity of the support block. It plays the role of automatic limiting clamping when bending the pipe fittings. There is no need to manually hold the pipe fittings for bending, which frees the workers' hands and reduces their workload. The support block is movably connected to the base through a driving member, which facilitates the automatic adjustment of the required bending length of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a single-head pipe bending machine with a limiting structure proposed by the utility model;

[0014] Figure 2 This is a main cross-sectional view of the overall structure of a single-head pipe bending machine with a limiting structure proposed by the utility model;

[0015] Figure 3 This is a main cross-sectional view of the internal structure of a support block of a single-head pipe bending machine with a limiting structure proposed by the utility model;

[0016] Figure 4 The utility model proposes a single-head pipe bending machine with a limited position structure. Figure 1 A magnified view of the structure at center A;

[0017] Figure 5 The utility model proposes a single-head pipe bending machine with a limited position structure. Figure 2 A magnified view of the structure at point B.

[0018] Legend:

[0019] 1. Base; 2. Round table; 3. Clamp; 4. First groove; 5. First screw; 6. Arc block; 7. Bolt; 8. Support block; 9. Guide block; 10. First drive motor; 11. First threaded hole; 12. First slider; 13. First slide groove; 14. Through groove; 15. Support plate; 16. Cavity; 17. Through hole; 18. Second slider; 19. Spring; 20. Second slide groove; 21. Stop block; 22. Second threaded hole; 23. Bidirectional motor; 24. Second groove; 25. Second screw; 26. Third threaded hole; 27. Third slide groove; 28. Rotating shaft; 29. ​​Third groove; 30. Second drive motor; 31. Third slider. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figures 1 to 5 The utility model provides a single-head pipe bending machine with a limited position structure: it includes a base 1, one side of the top surface of the base 1 is rotatably connected to the round table 2, the top surface of the base 1 is provided with a third groove 29, the second driving motor 30 is vertically fixed in the third groove 29, the output end of the second driving motor 30 is transmission-connected to the rotating shaft 28, the rotating shaft 28 is vertically fixed to the bottom surface of the round table 2, the top surface of the round table 2 is radially slidably connected to two symmetrical clamping plates 3, the top surface of the other side of the base 1 is laterally provided with a first groove 4, a driving member is arranged in the first groove 4, the top surface of the driving member is fixedly connected to a support block 8, the support block 8 is close to the side of the round table 2 and is vertically slidably connected to two upper and lower mirror-symmetrical arc blocks 6, a cavity 16 is arranged in the support block 8, a fastener is movably connected in the cavity 16, and a bolt 7 transmission-connected to the fastener is movably connected to the outer side of the support block 8;

[0022] The fastener includes two support plates 15 vertically slidably connected in the cavity 16, and the side of the support block 8 close to the truncated table 2 passes through two upper and lower mirror-symmetrical through grooves 14, and the two through grooves 14 are connected to the cavity 16. The two support plates 15 pass through the two through grooves 14 respectively and are fixedly connected to the two arc blocks 6 respectively. The end of the bolt 7 rotates through the cavity 16 and is rotatably connected to the bottom surface of the cavity 16. Two abutment blocks 21 are vertically slidably connected in the cavity 16. The top surfaces of the two abutment blocks 21 are penetrated by second threaded holes 22, and the threads of the two second threaded holes 22 are opposite. The bolt 7 is threadedly sleeved in the two second threaded holes 22. The top surfaces of the two support plates 15 are penetrated by through holes 17, and the bolt 7 axially passes through the through holes 17.

[0023] Two second slide grooves 20 with mirror-image symmetry are vertically provided on the inner wall of one side of the cavity 16, a second slider 18 fixedly connected to the support plate 15 is slidably connected in the second slide groove 20, a spring 19 is fixedly connected between the second slider 18 and the second slide groove 20, two fourth slide grooves with mirror-image symmetry are vertically provided on the inner wall of the other side of the cavity 16, two fourth sliders are vertically slidably connected in each fourth slide groove, and a fourth slider is fixedly connected on both sides of each stop block 21;

[0024] The driving member includes a first driving motor 10 horizontally fixed in the first groove 4, the output end of the first driving motor 10 is drivingly connected to the first screw 5, the end of the first screw 5 is rotatably connected to the inner wall of the other side of the first groove 4, the bottom surface of the first groove 4 is horizontally provided with a first slide groove 13, the first slide block 12 is slidably connected in the first slide groove 13, the top surface of the first slide block 12 is fixedly connected to the guide block 9, the guide block 9 is fixed to the bottom surface of the support block 8, the side surface of the guide block 9 horizontally passes through the first threaded hole 11, and the first screw 5 is threadedly connected in the first threaded hole 11;

[0025] A second groove 24 is radially opened on the top surface of the truncated table 2, and a bidirectional motor 23 is horizontally fixed at the center of the second groove 24. The two output ends of the bidirectional motor 23 are respectively connected to a second screw 25 for transmission. The two second screws 25 are respectively connected to the inner walls on both sides of the second groove 24 for horizontal rotation. A third sliding groove 27 is horizontally opened on the inner walls on both sides of the second groove 24. Two third sliders 31 are slidably connected in each third sliding groove 27. A clamping plate 3 is fixed between every two third sliders 31. The two clamping plates 3 are both located in the second groove 24. The two clamping plates 3 both horizontally penetrate a third threaded hole 26. The threads of the two third threaded holes 26 are in opposite directions. The two clamping plates 3 are respectively sleeved on the outer edges of the two second screws 25 through the two third threaded holes 26.

[0026] By flexibly connecting two arc blocks 6 with mirror symmetry up and down on the support block 8, and flexibly connecting a fastener connected to the arc block 6 in the cavity 16 in the support block 8, the pipe fitting can be automatically limited and clamped when being bent, and there is no need to manually hold the pipe fitting for bending, which frees the hands of the workers and reduces the workload of the workers. The support block 8 is flexibly connected to the base 1 through the driving member, so as to facilitate automatic adjustment of the required bending length of the pipe fitting.

[0027] Working principle: when in use, firstly, one side of the pipe to be bent is horizontally sleeved on the outer edges of the two arc blocks 6 on the support block 8. Under the action of the two support plates 15 and the spring 19, the two arc blocks 6 are relatively displaced, so that the outer edges of the two arc blocks 6 abut against the inner wall of the pipe. Then, the bolt 7 is rotated, and the two abutting blocks 21 in the cavity 16 drive the two abutting blocks 21 to perform axial reverse displacement through two second threaded holes 22 with opposite thread rotation directions, so that the two abutting blocks 21 abut against the two support plates 15 respectively, thereby limiting the two arc blocks 6 and playing a role in limiting and fixing the pipe. Then, the driving member drives the pipe on the support block 8 to perform axial displacement, so that Adjust the bending length and position of the pipe fitting. After the adjustment is completed, the two clamps 3 on the truncated table 2 are radially displaced relative to each other under the action of the bidirectional motor 23, the two second screws 25 and the two third threaded holes 26 with opposite thread rotation directions, so that the two clamps 3 are clamped on the outer edge of the other side of the pipe fitting. Then the second drive motor 30 drives the truncated table 2 to rotate. The pipe fitting is bent under the action of the two clamps 3 and the rotating truncated table 2. After bending, the second drive motor 30 stops, and the bidirectional motor 23 drives the two clamps 3 to separate from the pipe fitting. Then the bolt 7 is rotated in the opposite direction, so that the two blocks 21 are axially displaced relative to each other and separated from the support plate 15. Then the bent pipe fitting can be removed.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-head pipe bending machine with a limited position structure, comprising a base (1), characterized in that: One side of the top surface of the base (1) is rotatably connected to the truncated table (2), and the top surface of the truncated table (2) is radially slidably connected to two symmetrical clamping plates (3). A first groove (4) is transversely provided on the top surface of the other side of the base (1), and a driving member is provided in the first groove (4). The top surface of the driving member is fixedly connected to a support block (8), and the support block (8) is vertically slidably connected to two arc blocks (6) that are mirror-symmetrical in upper and lower directions on one side of the truncated table (2). A cavity (16) is provided in the support block (8), and a fastener is movably connected in the cavity (16). The outer side of the support block (8) is movably connected to a bolt (7) that is transmission-connected to the fastener.

2. The single-head pipe bender with a limiting structure according to claim 1, characterized in that: A third groove (29) is formed on the top surface of the base (1), and a second drive motor (30) is vertically fixed in the third groove (29). The output end of the second drive motor (30) is connected to a rotating shaft (28) in a transmission manner, and the rotating shaft (28) is vertically fixed to the bottom surface of the truncated table (2).

3. The single-head pipe bender with a limiting structure according to claim 1, characterized in that: The fastener comprises two support plates (15) vertically slidably connected in the cavity (16); the support block (8) has two upper and lower mirror-symmetrical through grooves (14) passing through one side of the truncated cone (2); and the two through grooves (14) are both connected to the cavity (16); the two support plates (15) respectively pass through the two through grooves (14) and are respectively fixedly connected to the two arc-shaped blocks (6); the end of the bolt (7) rotates through the cavity (16) and is rotatably connected to the bottom surface of the cavity (16); two stop blocks (21) are vertically slidably connected in the cavity (16); the top surfaces of the two stop blocks (21) are both penetrated by second threaded holes (22), and the threads of the two second threaded holes (22) are in opposite directions; the bolt (7) is threadedly sleeved in the two second threaded holes (22); the top surfaces of the two support plates (15) are both penetrated by through holes (17), and the bolt (7) axially passes through the through holes (17).

4. The single-head pipe bender with a limiting structure according to claim 3, characterized in that: Two second sliding grooves (20) with mirror symmetry in upper and lower directions are vertically formed on the inner wall of one side of the cavity (16); a second sliding block (18) fixedly connected to the support plate (15) is slidably connected in the second sliding groove (20); a spring (19) is fixedly connected between the second sliding block (18) and the second sliding groove (20); two fourth sliding grooves with mirror symmetry are vertically formed on the inner wall of the other side of the cavity (16); two fourth sliding blocks are vertically slidably connected in each of the fourth sliding grooves; and one fourth sliding block is fixedly connected to each of the two sides of each of the stop blocks (21).

5. The single-head pipe bender with a limiting structure according to claim 1, characterized in that: The driving member comprises a first driving motor (10) fixed horizontally in the first groove (4); the output end of the first driving motor (10) is drivingly connected to a first screw rod (5); the end of the first screw rod (5) is rotatably connected to the inner wall of the other side of the first groove (4); a first sliding groove (13) is transversely provided on the bottom surface of the first groove (4); a first sliding block (12) is slidably connected in the first sliding groove (13); the top surface of the first sliding block (12) is fixedly connected to a guide block (9); the guide block (9) is fixed to the bottom surface of the support block (8); the side surface of the guide block (9) horizontally passes through a first threaded hole (11); and the first screw rod (5) is threadedly connected in the first threaded hole (11).

6. The single-head pipe bender with a limiting structure according to claim 1, characterized in that: A second groove (24) is radially provided on the top surface of the truncated table (2). A bidirectional motor (23) is horizontally fixed at the center of the second groove (24). The two output ends of the bidirectional motor (23) are respectively connected to a second screw rod (25). The two second screw rods (25) are respectively connected to the inner walls of the second groove (24) in a horizontal manner. The inner walls of the second groove (24) are respectively connected to the inner walls in a horizontal manner. Two third sliding blocks (31) are slidably connected in each of the third sliding grooves (27). A clamping plate (3) is commonly fixed between every two third sliding blocks (31). The two clamping plates (3) are both located in the second groove (24). The two clamping plates (3) are horizontally penetrated by a third threaded hole (26). The threads of the two third threaded holes (26) are in opposite directions. The two clamping plates (3) are respectively sleeved on the outer edges of the two second screw rods (25) through the two third threaded holes (26).

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