CN2894886Y

CN2894886Y - Metal pipe cold-bending machine

Info

Publication number: CN2894886Y
Application number: CN 200620024362
Authority: CN
Inventors: 范书涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-10
Filing date: 2006-05-10
Publication date: 2007-05-02
Anticipated expiration: 2016-05-10

Abstract

The utility model relates to a metal tube cold bending device and belongs to the technical field of metal tube bending device. The metal tube cold bending device with high quality, effort-save, and high production efficiency is provided. The utility model includes a worktable, the worktable is provided with a rotating half die fixed and connected with a principal axis; opposite to the rotating half die is provided with a clamping half die; the out side of the clamping half die is arranged with a regulation frame with a limitation wheel; the worktable is provided with a core axis; the connecting handle of the core axis is connected with a dynamic drive device; the axes of the core axis is overlapped with the axes of the tube material which is waited for processing; and one side of the limitation wheel of the regulation frame is arranged with an assisting limitation device. An assisting limitation device is arranged on one side of the limitation wheel of the former regulation frame. During the bending of the metal tube, the end of the tube material moves forward along the axes all the way, this can achieve the purpose of replacing the iron sand with the core axis. The production efficiency is high, and the finished bending tubes have no ruffles inside. Besides, the tube diameter of each part is the same, and the outdated technique of filling sand and dropping sand for each tube is removed, thus the production is work-saving and effort-saving.

Description

The metal tube forming mill

Technical field

The utility model relates to a kind of metal tube forming mill, belongs to the bending apparatus technical field of metal tube.

Background technology

At present, processing enterprise is when cold system metal winding pipe, and over-borrowing helps angle pipe equipment, the workbench of angle pipe equipment be provided with the fixing rotation half module of main shaft and with the relative clamping half module of rotation half module.The radius in the semicircle chamber of two half modules is consistent with the radius of institute's processing tube material, and the front end of rotation half module is provided with chuck, and the clamping half module outside is provided with the adjusting bracket of band position-limited wheel.Its weak point is, utilize this kind equipment to carry out the bend pipe operation before, need fill iron sand in the cavity with the pipe blank in advance, and, can carry out the bend pipe operation by means of this kind equipment with after the shutoff of two ends.The dress iron sand is to produce gauffer for the inside bend position that prevents pipe in the process of bending in the tube chamber.Although take such measures, also cannot say for sure to demonstrate,prove the quality of bend pipe, especially the cross-sectional diameter deviation at each position of finished product bend pipe is too big.In addition, before the processing to pipe material dress iron sand and add shutoff and machine-shaping after the operating process of going shutoff and the pouring out iron sand effort of not only taking a lot of work, labour intensity is big, and production efficiency is low, is difficult to be suitable for production in enormous quantities.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of bending quality height, laborsaving, the metal tube forming mill that production efficiency is high.

It is as follows to address the above problem the technical scheme that is adopted:

A kind of metal tube forming mill, it comprises workbench, workbench is provided with the rotation half module of fixedlying connected with main shaft, with the relative clamping half module that is provided with of rotation half module, the clamping half module outside is provided with the adjusting bracket of band position-limited wheel, and said workbench 13 is provided with axle 11, and the connection handle 9 of axle 11 links to each other with actuating unit, the axis of the axis of axle 11 and pipe material 12 to be processed coincides, and position-limited wheel 16 1 sides of adjusting bracket 17 are equipped with auxiliary position-limit mechanism.

Above-mentioned metal tube forming mill, said auxiliary position-limit mechanism are an auxiliary position-limited wheel 2, and the wheel shaft 1 of auxiliary position-limited wheel 2 is installed on the adjusting bracket 17.

Above-mentioned metal tube forming mill, said auxiliary position-limit mechanism are an auxiliary limiting plate 18, and auxiliary limiting plate 18 is fixedlyed connected with adjusting bracket 17.

Above-mentioned metal tube forming mill, said actuating unit is a hydraulic transmission, it comprises hydraulic jack 7 and hydraulic pump 21, and the cylinder bar 6 of oil cylinder 7 is hinged with connection handle 9 ends of axle 11, and the oil feed line 20 that oil cylinder 7 and hydraulic pump are 21 is provided with manual three position four-way directional control valve 19 and pressure-reducing valve 22.

Above-mentioned metal tube forming mill, the connection handle 9 of said axle 11 is provided with limited block 8, and the block 10 relative with limited block 8 is fixed on the workbench 13.

Above-mentioned metal tube forming mill, the outside, cylinder bar 6 ends of said hydraulic jack 7 is fixed with a jacking block 5, is provided with push rod 4 between jacking block 5 and clamping half module 3 rear ends.

Metal tube forming mill provided by the utility model is the improvement on existing forming mill basis.Position-limited wheel one side of former adjusting bracket is set up auxiliary position-limit mechanism, and like this, in the process that metal tube is bent, the tail end of clamping half module and pipe material is limited, can not produce the motion of outside skew again.That is, the tail end of pipe material is moved forward all the time along its axis, thereby just can reach the purpose that adopts axle to replace iron sand.Forming mill production efficiency height after the improvement, the good product quality of making, finished product bend pipe inboard is non-wrinkled, and each position caliber unanimity has thoroughly been abandoned every pipe and must have been adorned sand, fall the backwards technology of sand, production saving of labor, laborsaving.

Description of drawings

Fig. 1 is the plan structure sketch of a kind of embodiment of the utility model;

Fig. 2 is the adjusting bracket partial top view with auxiliary limiting plate;

Fig. 3 is the hydraulic schematic diagram of metal tube forming mill shown in Figure 1.

Number in the figure is: 1. wheel shaft 2. auxiliary position-limited wheel 3. clamping half modules 4. push rods 5. jacking blocks 6. cylinder bars 7. hydraulic jacks 8. limited blocks 9. connection handles 10. blocks 11. axles 12. pipe material 13. workbench 14. rotation half modules 15. main shafts 16. position-limited wheels 17. adjusting brackets 18. to be processed are assisted limiting plate 19. manual three position four-way directional control valve 20. oil feed lines 21. hydraulic pumps 22. pressure-reducing valves 23. chucks

The specific embodiment

The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:

Referring to Fig. 1, Fig. 2, comprise workbench 13 in the formation of the present utility model, workbench 13 is provided with the rotation half module 14 of fixedlying connected with main shaft 15, with the rotation half module 14 relative clamping half modules 3 that are provided with, clamping half module 3 outsides are provided with the adjusting bracket 17 of band position-limited wheel 16, and the setting of adjusting bracket 17 is blanks of processing different tube diameters in order to adapt to.This machine has been set up axle 11 on workbench 13, the connection handle 9 of axle 11 can link to each other with gear, tooth bar actuating unit, also can be as Fig. 1, shown in Figure 3, the cylinder bar 6 of the hydraulic jack 7 in connection handle 9 ends and the hydraulic transmission is hinged, the axis of the axis of axle 11 and pipe material 12 to be processed coincides, its diameter and pipe material internal diameter coupling to be processed are so that can successfully enter in the tube chamber axle 11.

In order to prevent that in the bend pipe process tail end of the tail end of pipe material 12 to be processed and clamping half module 3 outwards produces skew, set up auxiliary position-limit mechanism in position-limited wheel 16 1 sides of adjusting bracket 17.Should auxiliary position-limit mechanism can be an auxiliary position-limited wheel 2 as shown in Figure 1, its wheel shaft 1 is installed on the adjusting bracket 17; Also can be as shown in Figure 2, be an auxiliary limiting plate 18, auxiliary limiting plate 18 can be fixing with adjustable plate 17 welding.

Referring to Fig. 1, when this movement axle 11 adopts the hydraulic transmission transmission, the hydraulic principle of this device as shown in Figure 3, it comprises hydraulic jack 7 and hydraulic pump 21, the oil feed line 20 that oil cylinder 7 and hydraulic pump are 21 is provided with manual three position four-way directional control valve 19 and pressure-reducing valve 22.Wherein, hydraulic pump 21 can adopt plunger displacement pump.

Still, when this machine of use carries out the bend pipe operation, at first, clamp, then clamping half module 3 is sent to the operating position forward by means of the front end of chuck 23 with pipe material 12 to be processed referring to Fig. 1.Because of when bending the bigger bend pipe of bore, for example caliber is when Φ 165mm, and the weight of used clamping half module 3 self can surpass 100 kilograms, moves very by the people and requires great effort.Therefore, can fix a jacking block 5 in the outside, cylinder bar 6 ends, and clamping half module 3 be arrived the operating position to sinciput by means of push rod 4.Afterwards, push rod 4 is taken off, by means of oil cylinder 7, axle 11 is sent in the cavity of pipe material 12 to be processed, axle 11 goes ahead along the cavity of pipe material 12, and its front end stops until near the position of chuck 23 time.At this moment, just can start the motor of main shaft 15, make rotation half module 14 along the rotation of direction shown in the arrow, make pipe material 12 be bent required camber, reverse then starter motor is return the finished product that is bent.When returning, the manual three position four-way directional control valve of reverse operating withdraws from axle 11 fast in tube chamber.

For guaranteeing that axle 11 enters every position consistency in material pipe 12 cavitys, can on the connection handle 9 of axle 11, set up a limited block 8, the block 10 relative with limited block 8 is fixed on the workbench 13.When carrying out the bend pipe operation, the operator can rely on the visual block 10 and the relative position of limited block 8 to control reversal valve.

Claims

1. metal tube forming mill, it comprises workbench, workbench is provided with the rotation half module of fixedlying connected with main shaft, with the relative clamping half module that is provided with of rotation half module, the clamping half module outside is provided with the adjusting bracket of band position-limited wheel, it is characterized in that, said workbench [13] is provided with axle [11], the connection handle [9] of axle [11] links to each other with actuating unit, and the axis of the axis of axle [11] and pipe material to be processed [12] coincides, and position-limited wheel [16] one sides of adjusting bracket [17] are equipped with auxiliary position-limit mechanism.

2. metal tube forming mill according to claim 1 is characterized in that, said auxiliary position-limit mechanism is an auxiliary position-limited wheel [2], and the wheel shaft [1] of auxiliary position-limited wheel [2] is installed on the adjusting bracket [17].

3. metal tube forming mill according to claim 1 is characterized in that, said auxiliary position-limit mechanism is an auxiliary limiting plate [18], and auxiliary limiting plate [18] is fixedlyed connected with adjusting bracket [17].

4. metal tube forming mill according to claim 1, it is characterized in that, said actuating unit is a hydraulic transmission, it comprises hydraulic jack [7] and hydraulic pump [21], the cylinder bar [6] of oil cylinder [7] is hinged with the connection handle [9] of axle [11] end, and the oil feed line [20] between oil cylinder [7] and hydraulic pump [21] is provided with manual three position four-way directional control valve [19] and pressure-reducing valve [22].

5. metal tube forming mill according to claim 4 is characterized in that, the connection handle [9] of said axle [11] is provided with limited block [8], and the block [10] relative with limited block [8] is fixed on the workbench [13].

6. according to claim 1 or 4 described metal tube forming mills, it is characterized in that the outside, cylinder bar [6] end of said hydraulic jack [7] is fixed with a jacking block [5], is provided with push rod [4] between jacking block [5] and clamping half module [3] rear end.