Three-pinch device for crease-resistant forming of thin steel pipe

Abstract

The utility model relates to a three-pinch device for crease-resistant forming of a thin steel pipe. The technical problem that wrinkles or deformation occurs in the forming process of an existing thin steel pipe is solved. Comprising a fixing frame, mounting parts are arranged at the two ends of the fixing frame respectively, brackets are arranged at the upper ends of the mounting parts, lifting assemblies connected with the mounting parts are arranged at the upper ends of the brackets, connecting rods are arranged between the lifting assemblies, clamping and conveying bases are arranged on the inner sides of the two ends of the fixing frame respectively, and a clamping and conveying space for steel pipes to shuttle is formed between the clamping and conveying bases; the end, away from the fixing frame, of the mounting part is provided with a horizontal pushing driving structure capable of making the clamping and conveying base move in the length direction of the fixing frame, and a supporting plate is arranged in the middle of the fixing frame. The device has the advantages that the ascending or descending action of the fixing frame is controlled through the lifting assembly, meanwhile, movement of the clamping and conveying base is controlled through the horizontal pushing driving structure, the overall performance is improved, precision and stability are optimized, and it is ensured that a steel pipe can be kept in a stable shape in the forming process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel pipe equipment technical field, concretely relates to a three clamping and feeding device of thin type steel pipe anti -wrinkle forming. BACKGROUND

[0002] In the industrial manufacturing field, the forming technology of steel pipe has been a research hotspot. Among them, the forming technology of thin type steel pipe is more concerned because it has the characteristics such as light weight, high strength, good plasticity and corrosion resistance, and is widely used in various engineering fields. In the traditional steel pipe forming process, due to the complexity of material properties and process flow, the thin type steel pipe is prone to wrinkle or deformation in the forming process, which not only affects the appearance of the steel pipe, but also may reduce its performance and service life, therefore, it is particularly important to design a device that can effectively prevent wrinkles. SUMMARY

[0003] The utility model aims at above -mentioned problem, provides a three clamping and feeding device of thin type steel pipe anti -wrinkle forming.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a three clamping and feeding device of thin type steel pipe anti -wrinkle forming, including fixed frame, the fixed frame both ends are equipped with installation part, the installation part upper end is equipped with bracket, the bracket upper end is equipped with the lifting assembly that is connected with installation part, the lifting assembly between being equipped with connecting rod, the fixed frame both ends inboard are equipped with clamping and feeding seat respectively, the clamping and feeding seat between has the clamping and feeding space that supplies steel pipe to shuttle, the installation part is equipped with the flat push drive structure that can make the clamping and feeding seat move along the length direction of fixed frame away from fixed frame one end, and the fixed frame middle part is equipped with support plate. Through the lifting assembly, the up and down movement of the fixed frame can be controlled, and the left and right movement of the clamping and feeding seat is controlled through the flat push drive structure, which improves the overall operation precision and stability, ensures that the steel pipe can keep stable shape in the forming process.

[0005] In the above-mentioned three clamping and feeding device of thin type steel pipe anti -wrinkle forming, the fixed frame both sides have frame plate respectively, the frame plate between having movable channel, the support plate is located between two frame plates and the movable channel is located below the support plate, the installation part both sides are equipped with mounting plate respectively, and the mounting plate of installation part near fixed frame side is connected with fixed frame. The frame plate both ends are connected with mounting plate respectively, and the support plate is also installed between the two frame plates, so as to ensure the overall stability of the fixed frame.

[0006] In the above-mentioned three clamping and feeding device of thin type steel pipe anti -wrinkle forming, the installation plate length is greater than the installation part length, and the installation part both ends are equipped with the limiting slot between the same end of two mounting plates.

[0007] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, the pinch seat is arranged in the movable channel, the flat push driving structure comprises a flat push driving part arranged at the end of the mounting part away from the fixed frame, an axial flat push screw rod part is arranged on the flat push driving part and penetrates the mounting part into the movable channel and is connected with the pinch seat, a flat push motor is connected with one side of the flat push driving part, and a flat push guide assembly corresponding to the pinch seat is arranged on the fixed frame. The flat push motor drives the flat push driving part to move, the flat push driving part is connected with the pinch seat through the flat push screw rod part, and the movement of the pinch seat is realized.

[0008] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, the flat push guide assembly comprises a guide groove arranged axially on the inner side of one of the frame plates, the guide groove is connected with the movable channel, one side of the pinch seat is provided with a guide block, and the guide block is arranged in the guide groove. The guide block of the pinch seat is connected with the guide groove of the frame plate, so that the stability of the pinch seat during movement is ensured.

[0009] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, the upper side of the pinch seat is provided with a movable part, the inner side of the lower end of the movable part is provided with a mounting groove, and the pinch wheel is movably arranged in the mounting groove.

[0010] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, the lifting assembly comprises a lifting driving part arranged at the upper end of the bracket, an axial lifting screw rod part is arranged on the lower end of the lifting driving part and penetrates the bracket and is connected with the upper end of the mounting part, the connecting rods are movably connected with the lifting driving parts at the two ends respectively, and one end of one of the lifting driving parts is connected with a lifting motor. The lifting motor drives the lifting driving part to move, the lifting driving part is connected with the mounting part through the lifting screw rod part, and the two lifting driving parts are connected through the connecting rods, so that one lifting motor can control the synchronous movement of the two lifting driving parts, and the up-down movement of the fixed frame is realized.

[0011] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, one end of the bracket is provided with an auxiliary part arranged axially and extending, the width of the auxiliary part is equal to the width of the mounting part, and the end of the auxiliary part close to the mounting part is located in the limiting groove. The auxiliary part and the limiting groove can guide the movement of the fixed frame.

[0012] In the three pinch device for the anti-wrinkle forming of the thin steel pipe, the lower end of the fixed frame is provided with a gasket connecting plate, the length of the gasket connecting plate is greater than the length of the supporting plate, and the width of the gasket connecting plate is equal to the width of the fixed frame.

[0013] In the three pinchers of the thin steel pipe anti-wrinkle forming device, the lower end of the gasket connecting plate is provided with a buffer gasket in the pinch space, and the buffer gasket is in a trapezoidal structure with a wide upper end and a narrow lower end.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The device controls the rising or falling action of the fixed frame through the lifting assembly, and controls the movement of the pinch seat through the flat push driving structure, improves the overall performance, optimizes the precision and stability, and ensures that the steel pipe can maintain a stable shape during the forming process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structural schematic diagram of the utility model.

[0017] Figure 2 is the front view of the utility model.

[0018] Figure 3 is the top view of the utility model.

[0019] Figure 4 is the side view of the utility model.

[0020] Figure 5 is the structural sectional view of the pinch seat of the utility model.

[0021] In the figure: fixed frame 1, support plate 11, frame plate 12, movable channel 13, gasket connecting plate 14, buffer gasket 15, mounting portion 2, mounting plate 21, limiting groove 22, bracket 3, auxiliary portion 31, lifting assembly 4, lifting driving portion 41, lifting screw piece 42, lifting motor 43, connecting rod 5, pinch seat 6, pinch space 61, movable portion 62, mounting groove 63, pinch wheel 64, flat push driving structure 7, flat push driving portion 71, flat push screw piece 72, flat push motor 73, flat push guide assembly 8, guide groove 81, guide block 82. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0023] For example, Figures 1-5As shown, a kind of thin steel pipe wrinkle forming three pinch device, including fixed frame 1, fixed frame 1 two ends are equipped with installation part 2 respectively, the upper end of installation part 2 is equipped with bracket 3, the upper end of bracket 3 is equipped with the lifting assembly 4 connected with installation part 2, lifting assembly 4 between being equipped with connecting rod 5, the inner side of fixed frame 1 two ends is equipped with pinch seat 6 respectively, pinch seat 6 between having the pinch space 61 for steel pipe to shuttle, installation part 2 is equipped with the flat push driving structure 7 with pinch seat 6 can be moved along the length direction of fixed frame 1 away from one end of fixed frame 1, and the middle of fixed frame 1 is equipped with support plate 11. Through lifting assembly 4, the up-and-down movement of fixed frame 1 can be controlled, and the left-and-right movement of pinch seat 6 is controlled by flat push driving structure 7, so that the overall operation precision and stability are improved, and it is ensured that steel pipe can keep stable shape in the forming process.

[0024] Combined Figure 1 And Figure 3 As shown, fixed frame 1 two sides are equipped with frame plate 12 respectively, frame plate 12 between having movable channel 13, support plate 11 is located between two frame plates 12 and movable channel 13 is located below support plate 11, installation part 2 two sides are equipped with mounting plate 21 respectively, and the mounting plate 21 of installation part 2 near fixed frame 1 side is connected with fixed frame 1. Frame plate 12 two ends are connected with mounting plate 21 respectively, and support plate 11 is also installed between two frame plates 12, so as to ensure the overall stability of fixed frame 1.

[0025] Among them, the length of mounting plate 21 is greater than the length of installation part 2, and the two ends of installation part 2 are respectively equipped with limiting groove 22 located between the same end of two mounting plates 21.

[0026] Specifically, pinch seat 6 is arranged in movable channel 13, flat push driving structure 7 includes flat push driving part 71 arranged at the end of installation part 2 away from fixed frame 1, flat push driving part 71 is equipped with flat push screw rod 72 axially penetrating installation part 2 to movable channel 13 and connected with pinch seat 6, one side of flat push driving part 71 is connected with flat push motor 73, and fixed frame 1 is equipped with flat push guide assembly 8 corresponding to pinch seat 6. Flat push motor 73 drives flat push driving part 71 to operate, and flat push driving part 71 is connected with pinch seat 6 through flat push screw rod 72, so as to realize the movement of pinch seat 6.

[0027] Among them, flat push guide assembly 8 includes guide groove 81 axially arranged in the inner side of one of frame plates 12, guide groove 81 is communicated with movable channel 13, one side of pinch seat 6 is equipped with guide block 82, and guide block 82 is arranged in guide groove 81. The guide block 82 of pinch seat 6 is connected with the guide groove 81 of frame plate 12, so that the stability of pinch seat 6 during movement can be ensured.

[0028] As Figure 5As shown, the pinch seat 6 upper side has a movable part 62, the inner side of the lower end of the movable part 62 is provided with a mounting groove 63, and the mounting groove 63 movably has a pinch roller 64.

[0029] As shown, Figure 1 The lifting assembly 4 includes a lifting drive part 41 provided on the upper end of the bracket 3, the lower end of the lifting drive part 41 is provided with a lifting screw member 42 axially penetrating the bracket 3 and connected with the upper end of the mounting part 2, the two ends of the connecting rod 5 are movably connected with the lifting drive part 41, and one end of one of the lifting drive parts 41 is connected with a lifting motor 43. The lifting motor 43 drives the lifting drive part 41 to operate, the lifting drive part 41 is connected with the mounting part 2 through the lifting screw member 42, and the two lifting drive parts 41 are connected through the connecting rod 5, so that one lifting motor 43 can control the synchronous operation of the two lifting drive parts 41, thereby realizing the up and down movement of the fixed frame 1.

[0030] As shown in combination with Figure 1 and Figure 4 The bracket 3 has an auxiliary part 31 axially extending and provided at one end of the lower side, the width of the auxiliary part 31 is equal to the width of the mounting part 2, and the end of the auxiliary part 31 close to the mounting part 2 is located in the limiting groove 22. The cooperation of the auxiliary part 31 and the limiting groove 22 can play a guiding role when the fixed frame 1 moves.

[0031] As shown in combination with Figure 1 and Figure 2 The fixed frame 1 has a gasket connecting plate 14 at the middle of the lower end, the length of the gasket connecting plate 14 is greater than the length of the support plate 11, and the width of the gasket connecting plate 14 is equal to the width of the fixed frame 1.

[0032] The lower end of the gasket connecting plate 14 is provided with a buffer gasket 15 located in the pinch space 61, and the buffer gasket 15 has a trapezoidal structure with a wide upper end and a narrow lower end. When the fixed frame 1 moves downward, the buffer gasket 15 contacts the steel pipe, which can play a protective role to avoid abrasion of the surface of the steel pipe.

[0033] The principle of the embodiment is:

[0034] The two ends of the fixed frame 1 are connected with the mounting part 2, the lifting drive part 41 is connected with the bracket 3, the lifting drive part 41 is connected with the mounting part 2 through the lifting screw member 42, the lifting motor 43 is connected with one of the lifting drive parts 41, and the other lifting drive part 41 is driven through the connecting rod 5, thereby controlling the lifting or lowering action of the fixed frame 1, then the flat push drive part 71 is connected with the pinch seat 6 through the flat push screw member 72, the pinch seat 6 moves in the movable channel 13 under the driving of the flat push motor 73, and the guide block 82 of the pinch seat 6 cooperates with the guide groove 81 of the frame plate 12, thereby playing a stable operation role.

[0035] The specific embodiments described herein are merely illustrative of the present application. Various modifications or changes can be made to the specific embodiments described herein by those skilled in the art without departing from the spirit of the present application, or the scope of the appended claims.

[0036] Although the terms such as fixed frame 1, support plate 11, frame plate 12, movable channel 13, gasket connecting plate 14, buffer gasket 15, mounting portion 2, mounting plate 21, limiting groove 22, bracket 3, auxiliary portion 31, lifting assembly 4, lifting driving portion 41, lifting lead screw 42, lifting motor 43, connecting rod 5, clamping seat 6, clamping space 61, movable portion 62, mounting groove 63, clamping wheel 64, flat pushing driving structure 7, flat pushing driving portion 71, flat pushing lead screw 72, flat pushing motor 73, flat pushing guide assembly 8, guide groove 81, guide block 82 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any kind of additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A three pinch device for the anti-wrinkle forming of thin steel pipes, comprising a fixed frame (1), characterized in that, The fixed frame (1) is provided with mounting parts (2) at both ends, the upper end of the mounting part (2) is provided with a bracket (3), the upper end of the bracket (3) is provided with a lifting assembly (4) connected with the mounting part (2), the lifting assembly (4) is provided with a connecting rod (5) between them, the inner side of both ends of the fixed frame (1) is provided with a pinch seat (6), the pinch seat (6) has a pinch space (61) for the shuttling of steel pipes between them, the mounting part (2) is provided with a flat push driving structure (7) away from one end of the fixed frame (1), which can move the pinch seat (6) along the length direction of the fixed frame (1), and the middle of the fixed frame (1) is provided with a support plate (11).

2. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 1, wherein The fixed frame (1) is provided with frame plates (12) on both sides, the frame plates (12) have a movable channel (13) between them, the support plate (11) is located between the two frame plates (12) and the movable channel (13) is located below the support plate (11), the mounting part (2) is provided with mounting plates (21) on both sides, and the mounting plate (21) on the side close to the fixed frame (1) of the mounting part (2) is connected with the fixed frame (1).

3. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 2, wherein The length of the mounting plate (21) is greater than the length of the mounting part (2), and the mounting part (2) is provided with a limiting groove (22) at both ends between the same end of the two mounting plates (21).

4. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 2 or 3, wherein The pinch seat (6) is arranged in the movable channel (13), the flat push driving structure (7) includes a flat push driving part (71) arranged at the end of the mounting part (2) away from the fixed frame (1), the flat push driving part (71) is provided with a flat push screw part (72) axially penetrating the mounting part (2) into the movable channel (13) and connected with the pinch seat (6), one side of the flat push driving part (71) is connected with a flat push motor (73), and the fixed frame (1) is provided with a flat push guide assembly (8) corresponding to the pinch seat (6).

5. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 4, wherein The flat push guide assembly (8) includes a guide groove (81) arranged axially in the inner side of one of the frame plates (12), the guide groove (81) is connected with the movable channel (13), one side of the pinch seat (6) is provided with a guide block (82), and the guide block (82) is arranged in the guide groove (81).

6. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 5, wherein The pinch seat (6) has a movable part (62) on the upper side, the inner side of the lower end of the movable part (62) is provided with a mounting groove (63), and the mounting groove (63) is movably provided with a pinch wheel (64).

7. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 1, wherein The lifting assembly (4) includes a lifting driving part (41) arranged at the upper end of the bracket (3), the lower end of the lifting driving part (41) is provided with a lifting screw part (42) axially penetrating the bracket (3) and connected with the upper end of the mounting part (2), the connecting rod (5) is movably connected with the lifting driving part (41) at both ends, and one end of one of the lifting driving parts (41) is connected with a lifting motor (43).

8. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 3, wherein The bracket (3) is provided with an auxiliary part (31) extending axially at the lower side of one end, the width of the auxiliary part (31) is equal to the width of the mounting part (2), and the auxiliary part (31) is located in the limiting groove (22) near one end of the mounting part (2).

9. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 1, wherein The fixing frame (1) is provided with a gasket connecting plate (14) at the middle of the lower end, the length of the gasket connecting plate (14) is greater than the length of the supporting plate (11), and the width of the gasket connecting plate (14) is equal to the width of the fixing frame (1).

10. The three pinch roll device for preventing wrinkle forming of a thin steel pipe according to claim 9, wherein The lower end of the gasket connecting plate (14) is provided with a buffer gasket (15) located in the pinch space (61), and the buffer gasket (15) has a trapezoidal structure with a wide upper end and a narrow lower end.

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