A pipe bending device

Abstract

The present invention discloses a pipe bending device, including a main panel, a left fixed wheel, a right fixed wheel, a rotating moving wheel, a clamping assembly, a translation assembly, a rotating assembly, a positioning assembly, and a workpiece conveying assembly; the main panel is horizontally arranged, fixed to a frame, and a clamping assembly is arranged at the bottom; the bottom of the main panel is connected to a fixed seat through a connecting frame; the translation assembly and the rotating assembly are fixed to the bottom of the fixed seat, and the positioning assembly is arranged on the left and right sides of the rotating assembly; the upper end outer walls of the left fixed wheel, the right fixed wheel, and the rotating moving wheel are all provided with an annular groove, and the annular groove is used for the pipe body to be bent to pass through and fit the outer wall of the pipe body; the workpiece conveying assembly is arranged at the rear side of the left fixed wheel and the right fixed wheel, and is used to convey the pipe body horizontally between the left fixed wheel and the right fixed wheel. The pipe bending device of the present invention has a simple and reasonable structural design, stable and reliable operation, and is easy to use, automatic bending, and high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending, and in particular to a pipe bending device. Background Art

[0002] With the development of society, automated production is becoming more and more common. The processing of various workpieces is carried out by automated machinery, saving manpower, material resources and financial resources. Some pipe fittings need to be bent. The existing technology has low bending efficiency, inconsistent stability, poor quality, and waste of labor.

[0003] At present, there are only one-way left bends or one-way right bends on the market, and they are slow, inefficient, complex in structure, and inconvenient to operate. There is a lack of automated equipment that can bend pipes in both directions, so it is necessary to design an automated equipment that can bend pipes in both directions. Summary of the invention

[0004] The object of the present invention is to provide a pipe bending device, which has a simple and reasonable structural design, stable and reliable operation, is easy to use, has automatic bending and high efficiency.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A pipe bending device comprises a main panel, a left fixed wheel, a right fixed wheel, a rotating moving wheel, a clamping assembly, a translation assembly, a rotating assembly, a positioning assembly, and a workpiece conveying assembly (pipe conveying assembly);

[0007] The main panel is arranged horizontally and fixed on the frame (or mounting seat, shell cover), and a clamping assembly is provided at the bottom; the bottom of the main panel is connected to the fixing seat through a connecting frame; the translation assembly and the rotation assembly are fixed at the bottom of the fixing seat, and the positioning assembly is arranged on the left and right sides of the rotating assembly.

[0008] The upper outer walls of the left fixed wheel, the right fixed wheel and the rotating wheel are all provided with an annular groove, and the annular groove is used for the tube body (workpiece) to be bent to pass through and fit the outer wall of the tube body; the workpiece conveying assembly is arranged on the rear side of the left fixed wheel and the right fixed wheel, and is used to convey the tube body horizontally between the left fixed wheel and the right fixed wheel.

[0009] The clamping assembly includes a clamping cylinder, a longitudinal slide rail, a longitudinal slide seat, a circular shaft, a left swing arm, a right swing arm, a left swing block, and a right swing block. The clamping cylinder is horizontally arranged, and its shell is fixedly arranged at the bottom of the main panel, and its output shaft is connected to the rear end surface of the longitudinal slide seat; the longitudinal slide rail is horizontally arranged, and is fixedly arranged at the bottom of the main panel; the longitudinal slide seat is sleeved on the longitudinal slide rail and is slidably connected to the longitudinal slide rail; a vertically arranged circular shaft is provided at the front end of the longitudinal slide seat; the rear ends of the left and right swing blocks are respectively sleeved on the outer wall of the circular shaft and are hingedly connected to the circular shaft; the front end of the left swing block is hingedly connected to the rear end of the left swing arm, and the front end of the right swing block is hingedly connected to the rear end of the right swing arm; a left fixed wheel is vertically fixedly arranged at the front end of the left swing arm, and a right fixed wheel is vertically fixedly arranged at the front end of the right swing arm. The planar cross-section of the left and right swing arms is approximately V-shaped. By pushing and pulling the clamping cylinder, the longitudinal slide seat moves forward and backward and pulls the left swing arm and the right swing arm to swing, thereby realizing the change of the spacing between the left fixed wheel and the right fixed wheel, and realizing the clamping and loosening of the left fixed wheel and the right fixed wheel.

[0010] The translation assembly includes a translation motor, a driving gear, a driven gear, a screw, a nut sleeve, a transverse slide seat, a transverse slide rail, a sensor, and a connecting plate; the translation motor is horizontally arranged, and the outer wall of its output shaft is sleeved with a driving gear; the screw is horizontally arranged, and its two ends are sleeved with bearings and fixed on the connecting plate; the top of the connecting plate is fixed on the left and right sides of the main panel; the driven gear is sleeved on the outer wall of the screw and meshed with the driving gear; the nut sleeve is sleeved on the outer wall of the screw and meshed with the screw; the nut sleeve is fixed on the bottom of the transverse slide seat, and the transverse slide seat is slidably connected with the transverse slide rail; the transverse slide rail is horizontally fixed at the bottom of the fixed seat; the bottom of the transverse slide seat is also provided with a sensor for controlling the left and right translation stroke. The translation motor drives the driving gear and the driven gear to rotate, thereby driving the screw to rotate, and the rotating screw pushes the nut sleeve to move left and right, and the transverse slide seat fixed on the nut sleeve realizes left and right transverse movement.

[0011] The rotating assembly includes a rotating motor, a speed reducer, a main rotating gear, a slave rotating gear, a lifting cylinder, and a rotating seat; the rotating motor is vertically arranged, and its output shaft is connected to the main rotating gear, and the main rotating gear is meshed and connected to the slave rotating gear; a rotating seat is fixed on the upper surface of the slave rotating gear, and a rotating moving wheel is vertically fixed on the rotating seat; the rotating moving wheel is slidably connected to the rotating seat, and the rotating moving wheel can slide up and down in the vertical direction. A vertically arranged lifting cylinder is provided at the bottom of the slave rotating gear; the output shaft of the lifting cylinder pushes the bottom of the rotating moving wheel. The operation of the rotating motor drives the main rotating gear and the slave rotating gear to rotate, and then the rotation of the rotating seat drives the rotating moving wheel to rotate left or right, and the rotating rotating moving wheel cooperates with the left fixed wheel and the right fixed wheel to realize pipe bending.

[0012] The positioning assembly includes two positioning blocks and two positioning cylinders; the positioning blocks are fixed on the left and right sides of the fixed seat, and the positioning cylinders are vertically arranged on the left and right sides of the rotating assembly, and their shells are fixed on the horizontal sliding seat. When the rotating assembly rotates to the left, the left positioning block is locked to bend the pipe to the left and achieve precise positioning, and vice versa, the right positioning block is locked to bend the pipe to the right and achieve the purpose of precise positioning.

[0013] The pipe to be bent is transported to the left and right fixed wheels, and the clamping cylinder clamps the pipe, and the rotating motor rotates the rotating wheel around the left and right fixed wheels to achieve the purpose of bending the pipe. The lifting cylinder is used to lift the rotating wheel to facilitate the loading and unloading of the pipe.

[0014] Beneficial effects of the present invention:

[0015] Its structural design is simple and reasonable, and its operation is stable and reliable; it is easy to use, has automatic bending and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a pipe bending device of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of

[0018] Figure 3 It is a structural schematic diagram of a pipe bending device of the present invention (without the shell cover);

[0019] Figure 4 It is a right side view of a pipe bending device of the present invention (without the shell cover);

[0020] Figure 5 It is a left side view of a pipe bending device of the present invention (without the shell cover);

[0021] Figure 6 for Figure 3 Schematic diagram of the structure after omitting the main panel. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figure 1-Figure 6 As shown, a pipe bending device includes a main panel 1, a left fixed wheel 2, a right fixed wheel 3, a rotating moving wheel 4, a clamping assembly, a translation assembly, a rotation assembly, a positioning assembly, and a workpiece conveying assembly (pipe conveying assembly);

[0024] The main panel 1 is arranged horizontally and fixed on the frame (or mounting seat, shell cover), and a clamping assembly is provided at the bottom; the bottom of the main panel 1 is connected to the fixing seat 10 through the connecting frame 9; the translation assembly and the rotation assembly are fixed at the bottom of the fixing seat 10, and the positioning assembly is arranged on the left and right sides of the rotating assembly.

[0025] The upper outer walls of the left fixed wheel 2, the right fixed wheel 3 and the rotating wheel 4 are all provided with an annular groove 11, and the annular groove 11 is used for the tube body 12 (workpiece) to be bent to pass through and fit the outer wall of the tube body 12; the workpiece conveying assembly is arranged on the rear side of the left fixed wheel 2 and the right fixed wheel 3, and is used to horizontally convey the tube body between the left fixed wheel 2 and the right fixed wheel 3.

[0026] The clamping assembly includes a clamping cylinder 51, a longitudinal slide rail 52, a longitudinal slide seat 53, a round shaft 54, a left swing arm 55, a right swing arm 56, a left swing block 57, and a right swing block 58. The clamping cylinder 51 is horizontally arranged, and its housing is fixedly arranged at the bottom of the main panel 1, and its output shaft is connected to the rear end surface of the longitudinal slide seat 53; the longitudinal slide rail 52 is horizontally arranged and fixedly arranged at the bottom of the main panel 1; the longitudinal slide seat 53 is sleeved on the longitudinal slide rail 52 and is slidably connected to the longitudinal slide rail 52; a vertically arranged round shaft 54 ​​is arranged at the front end of the longitudinal slide seat 53; the rear ends of the left swing block 57 and the right swing block 58 are respectively sleeved on the outer wall of the round shaft 54 ​​and are hingedly connected to the round shaft 54; the front end of the left swing block 57 is hingedly connected to the rear end of the left swing arm 55, and the front end of the right swing block 58 is hingedly connected to the rear end of the right swing arm 56; the front end of the left swing arm 55 is vertically fixed with a left fixed wheel 2, and the front end of the right swing arm 56 is vertically fixed with a right fixed wheel 3. The planar cross-section of the left swing arm 55 and the right swing arm 56 is approximately V-shaped. Through the push and pull of the clamping cylinder 51, the longitudinal slide seat 53 moves forward and backward and pulls the left swing arm 55 and the right swing arm 56 to swing, thereby realizing the change of the spacing between the left fixed wheel 2 and the right fixed wheel 3, and realizing the clamping and loosening of the left fixed wheel 2 and the right fixed wheel 3.

[0027] The translation assembly includes a translation motor 61, a driving gear 62, a driven gear 63, a screw rod 64, a nut sleeve 65, a transverse slide seat 66, a transverse slide rail 67, a sensor 68, and a connecting plate 69; the translation motor 61 is horizontally arranged, and the outer wall of its output shaft is sleeved with a driving gear 62; the screw rod 64 is horizontally arranged, and its two ends are respectively sleeved with bearings and fixed on the connecting plate 69; the top of the connecting plate 69 is fixed on the left and right sides of the main panel 1; the driven gear 63 is sleeved on the outer wall of the screw rod 64 and meshed with the driving gear 62; the nut sleeve 65 is sleeved on the outer wall of the screw rod 64 and meshed with the screw rod 64; the nut sleeve 65 is fixed at the bottom of the transverse slide seat 66, and the transverse slide seat 66 is slidably connected with the transverse slide rail 67; the transverse slide rail 67 is horizontally fixed at the bottom of the fixed seat 10; the bottom of the transverse slide seat 66 is also provided with a sensor 68 for controlling the stroke of left and right translation. The translation motor 61 drives the driving gear 62 and the driven gear 63 to rotate, thereby driving the screw rod 64 to rotate. The rotating screw rod 64 pushes the nut sleeve 65 to move horizontally to the left and right, and the horizontal sliding seat 66 fixed on the nut sleeve 65 realizes the horizontal movement to the left and right.

[0028] The rotating assembly includes a rotating motor 71, a speed reducer 72, a main rotating gear 73, a secondary rotating gear 74, a lifting cylinder 75, and a rotating seat 76; the rotating motor 71 is vertically arranged, and its output shaft is connected to the main rotating gear 73, and the main rotating gear 73 is meshed and connected to the secondary rotating gear 74; a rotating seat 76 is fixed on the upper surface of the secondary rotating gear 74, and the rotating moving wheel 4 is vertically fixed on the rotating seat 76; the rotating moving wheel 4 is slidably connected with the rotating seat 76, and the rotating moving wheel 4 can slide up and down in the vertical direction. A vertically arranged lifting cylinder 75 is provided at the bottom of the secondary rotating gear 74; the output shaft of the lifting cylinder 75 pushes the bottom of the rotating moving wheel 4. The rotating motor 71 drives the main rotating gear 73 and the secondary rotating gear 74 to rotate, and then the rotating seat 76 rotates to drive the rotating moving wheel 4 to turn left or right, and the rotating rotating moving wheel 4 cooperates with the left fixed wheel 2 and the right fixed wheel 3 to realize pipe bending.

[0029] The positioning assembly includes two positioning blocks 81 and two positioning cylinders 82; the positioning blocks 81 are fixedly mounted on the left and right sides of the fixed seat 10, and the positioning cylinders 82 are vertically mounted on the left and right sides of the rotating assembly, and their housings are fixedly mounted on the horizontal sliding seat 66. When the rotating assembly rotates to the left, the left positioning block 81 is locked to bend the pipe to the left and achieve precise positioning, whereas the right positioning block 81 is locked to bend the pipe to the right and achieve the purpose of precise positioning.

[0030] The pipe to be bent is transported to the left and right fixed wheels 3, and the left and right fixed wheels 3 are clamped by the clamping cylinder 51, and the rotating motor 71 rotates the rotating wheel 4 around the left and right fixed wheels 3 to achieve the purpose of bending the pipe. The lifting cylinder 75 is used to lift the rotating wheel 4 to facilitate the loading and unloading of the pipe.

[0031] Preferably, the upper section of the left fixed wheel, the right fixed wheel and the rotating moving wheel with the arc-shaped annular groove is a chuck, and the chuck is detachably connected to the lower section of the left fixed wheel, the right fixed wheel and the rotating moving wheel, so that chucks of different specifications can be replaced; chucks of different specifications have arc-shaped annular grooves of different sizes, so as to cope with the processing of tubes of different sizes.

[0032] Preferably, a sensor is also provided on the front side of the rotating seat.

[0033] Preferably, it also includes a shell cover 13, which is sleeved on the outside of the main panel, the left fixed wheel, the right fixed wheel, the rotating wheel, the clamping assembly, the translation assembly, the rotating assembly, and the positioning assembly; a clearance hole is provided on the top of the shell cover 13, and the left fixed wheel, the right fixed wheel, and the rotating wheel pass through the clearance hole on the top of the shell cover 13.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A pipe bending device, Features: It includes a main panel, a left fixed wheel, a right fixed wheel, a rotating moving wheel, a clamping assembly, a translation assembly, a rotating assembly, a positioning assembly, and a workpiece conveying assembly; The main panel is arranged horizontally and fixed to the frame, and a clamping assembly is arranged at the bottom thereof; the bottom of the main panel is connected to the fixing seat through a connecting frame; the translation assembly and the rotation assembly are fixed to the bottom of the fixing seat, and the positioning assembly is arranged on the left and right sides of the rotation assembly; The upper outer walls of the left fixed wheel, the right fixed wheel and the rotating wheel are all provided with an annular groove, and the annular groove is used for the tube to be bent to pass through and fit the outer wall of the tube; the workpiece conveying assembly is arranged at the rear side of the left fixed wheel and the right fixed wheel, and is used to convey the tube horizontally to between the left fixed wheel and the right fixed wheel; The clamping assembly comprises a clamping cylinder, a longitudinal slide rail, a longitudinal slide seat, a round shaft, a left swing arm, a right swing arm, a left swing block, and a right swing block; The clamping cylinder is horizontally arranged, and its shell is fixedly arranged at the bottom of the main panel, and its output shaft is connected to the rear end surface of the longitudinal slide seat; the longitudinal slide rail is horizontally arranged, and is fixedly arranged at the bottom of the main panel; the longitudinal slide seat is sleeved on the longitudinal slide rail and is slidably connected with the longitudinal slide rail; a vertically arranged circular shaft is arranged at the front end of the longitudinal slide seat; the rear ends of the left swing block and the right swing block are respectively sleeved on the outer wall of the circular shaft and are hingedly connected with the circular shaft; the front end of the left swing block is hingedly connected to the rear end of the left swing arm, and the front end of the right swing block is hingedly connected to the rear end of the right swing arm; a left fixed wheel is vertically fixedly arranged at the front end of the left swing arm, and a right fixed wheel is vertically fixedly arranged at the front end of the right swing arm; The translation assembly includes a translation motor, a driving gear, a driven gear, a screw rod, a nut sleeve, a transverse slide seat, a transverse slide rail, a sensor, and a connecting vertical plate; the translation motor is horizontally arranged, and the outer wall of its output shaft is sleeved with a driving gear; the screw rod is horizontally arranged, and its two ends are respectively sleeved with bearings and then fixed on the connecting vertical plate; the top of the connecting vertical plate is fixed on the left and right sides of the main panel; the driven gear is sleeved on the outer wall of the screw rod and meshed with the driving gear; the nut sleeve is sleeved on the outer wall of the screw rod and meshed with the screw rod; the nut sleeve is fixed at the bottom of the transverse slide seat, and the transverse slide seat is slidably connected to the transverse slide rail; the transverse slide rail is horizontally fixed at the bottom of the fixed seat; A sensor is also provided at the bottom of the horizontal sliding seat; The rotating assembly includes a rotating motor, a reducer, a main rotating gear, a slave rotating gear, a lifting cylinder, and a rotating seat; the rotating motor is vertically arranged, and its output shaft is connected to the main rotating gear, and the main rotating gear is meshed and connected to the slave rotating gear; a rotating seat is fixed on the upper surface of the slave rotating gear, and the rotating wheel is vertically fixed on the rotating seat.

2. The pipe bending device according to claim 1, Features: A vertically arranged lifting cylinder is provided at the bottom of the driven gear; the output shaft of the lifting cylinder pushes the bottom of the rotating wheel.

3. The pipe bending device according to claim 1 or 2, Features: The positioning assembly comprises two positioning blocks and two positioning cylinders; the positioning blocks are fixedly arranged on the left and right sides of the fixed seat, and the positioning cylinders are vertically arranged on the left and right sides of the rotating assembly, and their shells are fixedly arranged on the horizontal sliding seat.

4. The pipe bending device according to claim 3, Features: The upper sections of the left fixed wheel, the right fixed wheel and the rotating moving wheel, which are provided with arc-shaped annular grooves, are chucks, and the chucks are detachably connected to the lower sections of the left fixed wheel, the right fixed wheel and the rotating moving wheel.

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