Steel pipe positioning and clamping mechanism in butt joint with numerical control pipe bending machine

Abstract

The utility model discloses a steel pipe positioning and clamping mechanism in butt joint with a numerical control pipe bending machine. The steel pipe positioning and clamping mechanism solves the problems that a bent pipe feeding mode wastes time and labor and is low in safety. A belt conveyor (6) and a steel pipe (29) are arranged between the front side vertical plate (2) and the rear side vertical plate (4) below the top plate (5); a first horizontal rotating lead screw (8) and a first horizontal rotating lead screw driving motor (9) are arranged in the first long-strip-shaped groove (7), a first lead screw nut (34) is connected to the first horizontal rotating lead screw (8), and a frame-shaped hanging bracket (10) is fixedly connected to the lower bottom face of the first lead screw nut (34). A vertical rotating lead screw (11) and a vertical rotating lead screw driving motor (12) are arranged in the frame-shaped hanging bracket, an inverted-U-shaped hanging bracket (14) is connected to a vertical rotating lead screw nut (13), and a driving pressing wheel (15) is arranged at the lower end of the inverted-U-shaped hanging bracket. And the steel pipe is accurately positioned and clamped.

Description

Technical Field

[0001] The utility model relates to a feeding mechanism of a pipe bender, in particular to a steel pipe feeding positioning and clamping mechanism connected to a numerical control pipe bender. Background Art

[0002] A pipe bender refers to a machine used for bending pipes, which can be roughly divided into two categories: CNC pipe bender and hydraulic pipe bender. Pipe bender is used in pipeline laying and repair in power construction, road and railway construction, bridges, ships, etc. When a steel pipe needs to be bent, a loading device is required to fix and clamp the bent pipe before the bending operation is performed. The loading devices of existing pipe bender require manual placement of the steel pipe on the loading table and fixation of the steel pipe by a pipe clamp. This loading method is time-consuming, labor-intensive, and has low safety. How to develop a steel pipe loading, positioning, and clamping mechanism that can be docked with a pipe bender has become a problem that needs to be solved on site. Summary of the Invention

[0003] The utility model provides a steel pipe positioning and clamping mechanism connected to a numerical control pipe bending machine, which solves the technical problems of a pipe bending feeding method being time-consuming, labor-intensive and low in safety.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A steel pipe positioning and clamping mechanism connected to a CNC pipe bending machine includes a front side vertical plate support leg and a rear side vertical plate support leg, a front side vertical plate is provided on the front side vertical plate support leg, a rear side vertical plate is provided on the rear side vertical plate support leg, a top plate is provided between the top end of the front side vertical plate and the top end of the rear side vertical plate; a belt conveyor is provided between the front side vertical plate and the rear side vertical plate below the top plate, and a steel pipe is provided on the belt conveyor; a first long strip groove in the front-to-back direction is provided in the middle of the lower bottom surface of the top plate, and a first horizontal rotating screw and a first horizontal rotating screw are respectively provided in the first long strip groove. A first horizontal rotating screw drive motor is connected to the first horizontal rotating screw, and a frame-shaped hanger is fixedly connected to the lower bottom surface of the first screw nut. A vertical rotating screw and a vertical rotating screw drive motor are respectively provided in the frame-shaped hanger, a vertical rotating screw is provided on the vertical rotating screw, and an inverted U-shaped hanger is connected to the vertical rotating screw nut, a driving pressure wheel is provided at the lower end of the inverted U-shaped hanger, and a driving pressure wheel driving motor is connected to the central axis of the driving pressure wheel; the driving pressure wheel presses on the top arc surface of the steel pipe.

[0006] A cantilever block is fixedly connected to the left vertical surface of the frame hanger, and an inverted U-shaped clamping mechanism mounting frame is fixedly connected to the left vertical surface of the cantilever block, and a second long strip groove in the front and rear directions is provided on the lower bottom surface of the top beam of the inverted U-shaped clamping mechanism mounting frame, and a second horizontal rotating screw and a second horizontal rotating screw driving motor are respectively provided in the second long strip groove, and a screw front thread and a screw rear thread are respectively provided on the second horizontal rotating screw, and the screw front thread and the screw rear thread are set in opposite directions, and a screw front nut is connected to the screw front thread, and a screw rear nut is connected to the screw rear thread, and a front clamping plate is suspended on the screw front nut, and a front anti-slip rubber pad is provided on the rear vertical surface of the front clamping plate, and a rear clamping plate is suspended on the screw rear nut, and a rear anti-slip rubber pad is provided on the front vertical surface of the rear clamping plate; a steel pipe is clamped between the front clamping plate and the rear clamping plate.

[0007] A scanning locator and a laser rangefinder are respectively arranged on the lower bottom surface of the top plate, and a programmable controller is arranged on the front vertical plate; the scanning locator, the laser rangefinder, the first horizontal rotating screw drive motor, the vertical rotating screw drive motor and the second horizontal rotating screw drive motor are respectively electrically connected to the programmable controller.

[0008] The utility model determines the position of the steel pipe on the conveyor belt by arranging a scanning locator and a laser rangefinder, and adjusts the driving pressure wheel to be directly above the steel pipe through the cooperation of the first horizontal rotating screw and the nut thereon, and then presses the driving pressure wheel against the top arc surface of the steel pipe through the cooperation of the vertical rotating screw and the vertical nut, thereby realizing the positioning and fixation of the steel pipe in the upper and lower directions, and then clamps the steel pipe left and right through the relative movement of the rear nut of the screw and the front nut of the screw, thereby fixing the left and right positions of the steel pipe, and starts the driving motor of the driving pressure wheel, and realizes feeding the steel pipe into the pipe bending machine through the driving pressure wheel to perform the steel pipe bending. In this process, automatic feeding and accurate positioning during the steel pipe bending process are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0010] Figure 2 is a cross-sectional view of the present invention along the left and right transverse directions;

[0011] FIG3 is a schematic structural diagram of the driving pressure wheel 15 and the hanging drive mechanism of the present invention; FIG4 is a partial enlarged view of point A in FIG3;

[0012] FIG5 is a schematic structural diagram of an inverted U-shaped clamping mechanism mounting frame 18 of the present invention; FIG6 is a schematic structural diagram of an inverted U-shaped clamping mechanism of the present invention. DETAILED DESCRIPTION

[0013] The utility model is described in detail below with reference to the accompanying drawings:

[0014] A steel pipe positioning and clamping mechanism for docking with a CNC pipe bending machine, comprising a front side vertical plate support leg 1 and a rear side vertical plate support leg 3, a front side vertical plate 2 being arranged on the front side vertical plate support leg 1, a rear side vertical plate 4 being arranged on the rear side vertical plate support leg 3, and a top plate 5 being arranged between the top ends of the front side vertical plate 2 and the rear side vertical plate 4. The front side upright plate 2, the rear side upright plate 4 and the top plate 5 form a closed conveying channel; a belt conveyor 6 is provided between the front side upright plate 2 and the rear side upright plate 4 below the top plate 5, and a steel pipe 29 is provided on the belt conveyor 6. After the steel pipe 29 is transported into the conveying channel, it is automatically positioned, clamped and fixed, and then transported forward to the steel pipe bending machine for bending; a first long strip groove 7 in the front-to-back direction is provided in the middle of the lower bottom surface of the top plate 5, and a first horizontal rotating screw 8 and a first horizontal rotating screw driving motor 9 are respectively provided in the first long strip groove 7. A first screw nut 34 is connected to the first horizontal rotating screw 8, and the first horizontal rotating screw driving motor 9 drives the first horizontal rotating screw 8 to rotate, so that the first screw nut 34 moves in the front-to-back longitudinal direction, so that the driving pressure wheel 15 is aligned with the steel pipe 29, and the first screw screw A frame hanger 10 is fixedly connected to the lower bottom surface of the nut 34, and a vertical rotating screw 11 and a vertical rotating screw driving motor 12 are respectively provided in the frame hanger 10, a vertical rotating screw nut 13 is provided on the vertical rotating screw 11, and an inverted U-shaped hanger 14 is connected to the vertical rotating screw nut 13, and a driving pressure wheel 15 is provided at the lower end of the inverted U-shaped hanger 14, and a driving pressure wheel driving motor 16 is connected to the central axis of the driving pressure wheel 15; the driving pressure wheel 15 presses on the top curved surface of the steel pipe 29; when the frame hanger 10 is adjusted to just above the steel pipe 29, the vertical rotating screw driving motor 12 drives the vertical rotating screw 11 to rotate, so that the vertical rotating screw nut 13 descends, driving the inverted U-shaped hanger 14 to descend, so that the driving pressure wheel 15 provided at the lower end of the inverted U-shaped hanger 14 is connected to the steel pipe 29.

[0015] A cantilever block 17 is fixedly connected to the left side elevation of the frame hanger 10, and an inverted U-shaped clamping mechanism mounting frame 18 is fixedly connected to the left side elevation of the cantilever block 17. A second long strip groove 19 in the front-to-back direction is provided on the lower bottom surface of the top beam of the inverted U-shaped clamping mechanism mounting frame 18. A second horizontal rotating screw 20 and a second horizontal rotating screw driving motor 30 are respectively provided in the second long strip groove 19. A screw front thread 21 and a screw rear thread 22 are respectively provided on the second horizontal rotating screw 20. The screw front thread 21 and the screw rear thread 22 are arranged in opposite directions. A screw front nut 2 is connected to the screw front thread 21. 3. A screw rear nut 25 is connected to the screw rear thread 22, a front clamping plate 24 is suspended on the screw front nut 23, a front anti-slip rubber pad 27 is provided on the rear vertical surface of the front clamping plate 24, a rear clamping plate 26 is suspended on the screw rear nut 25, and a rear anti-slip rubber pad 28 is provided on the front vertical surface of the rear clamping plate 26; a steel pipe 29 is clamped between the front clamping plate 24 and the rear clamping plate 26; the inverted U-shaped clamping mechanism mounting frame 18 is connected to the frame-shaped hanger 10 into a whole through the cantilever block 17 to achieve synchronous rising and falling, and the positioning, clamping and transportation of the bent steel pipe are achieved through the front clamping plate 24, the rear clamping plate 26 and the driving pressure wheel 15.

[0016] A scanning locator 31 and a laser rangefinder 32 are respectively provided on the lower bottom surface of the top plate 5, and a programmable controller 33 is provided on the front vertical plate 2; the scanning locator 31, the laser rangefinder 32, the first horizontal rotating screw drive motor 9, the vertical rotating screw drive motor 12 and the second horizontal rotating screw drive motor 30 are respectively electrically connected to the programmable controller 33.

Claims

1. A steel pipe positioning and clamping mechanism for docking with a CNC pipe bending machine, comprising a front side vertical plate support leg (1) and a rear side vertical plate support leg (3), a front side vertical plate (2) being provided on the front side vertical plate support leg (1), a rear side vertical plate (4) being provided on the rear side vertical plate support leg (3), and a top plate (5) being provided between the top end of the front side vertical plate (2) and the top end of the rear side vertical plate (4); characterized in that, A belt conveyor (6) is provided between the front side vertical plate (2) and the rear side vertical plate (4) below the top plate (5), and a steel pipe (29) is provided on the belt conveyor (6); a first long strip groove (7) in the front-back direction is provided in the middle of the lower bottom surface of the top plate (5), a first horizontal rotating screw (8) and a first horizontal rotating screw driving motor (9) are provided in the first long strip groove (7), a first screw nut (34) is connected to the first horizontal rotating screw (8), and a frame is fixedly connected to the lower bottom surface of the first screw nut (34). A frame-shaped hanger (10) is provided with a vertical rotating screw (11) and a vertical rotating screw driving motor (12), a vertical rotating screw nut (13) is provided on the vertical rotating screw (11), an inverted U-shaped hanger (14) is connected to the vertical rotating screw nut (13), a driving pressure wheel (15) is provided at the lower end of the inverted U-shaped hanger (14), and a driving pressure wheel driving motor (16) is connected to the central axis of the driving pressure wheel (15); the driving pressure wheel (15) is pressed against the top arc surface of the steel pipe (29).

2. A steel pipe positioning and clamping mechanism for docking with a CNC pipe bender according to claim 1, characterized in that: A cantilever block (17) is fixedly connected to the left side elevation of the frame hanger (10), an inverted U-shaped clamping mechanism mounting frame (18) is fixedly connected to the left side elevation of the cantilever block (17), a second long strip groove (19) in the front-to-back direction is provided on the bottom surface of the top beam of the inverted U-shaped clamping mechanism mounting frame (18), a second horizontal rotating screw (20) and a second horizontal rotating screw driving motor (30) are respectively provided in the second long strip groove (19), a screw front thread (21) and a screw rear thread (22) are respectively provided on the second horizontal rotating screw (20), and the screw front thread (21) and the rear thread of the screw (22) are arranged in the opposite direction, a screw front nut (23) is connected to the front thread of the screw (21), a screw rear nut (25) is connected to the rear thread of the screw (22), a front clamping plate (24) is suspended on the front nut of the screw (23), a front anti-slip rubber pad (27) is provided on the rear vertical surface of the front clamping plate (24), a rear clamping plate (26) is suspended on the rear nut of the screw (25), and a rear anti-slip rubber pad (28) is provided on the front vertical surface of the rear clamping plate (26); a steel pipe (29) is clamped between the front clamping plate (24) and the rear clamping plate (26).

3. A steel pipe positioning and clamping mechanism for docking with a CNC pipe bender according to claim 2, characterized in that: A scanning locator (31) and a laser rangefinder (32) are respectively provided on the lower bottom surface of the top plate (5), and a programmable controller (33) is provided on the front side vertical plate (2); the scanning locator (31), the laser rangefinder (32), the first horizontal rotating screw drive motor (9), the vertical rotating screw drive motor (12) and the second horizontal rotating screw drive motor (30) are respectively electrically connected to the programmable controller (33).

Images