CN204892759U - Pipe end flaring device - Google Patents

Abstract

A pipe end flaring device, which includes a spinning mechanism, a clamping mechanism and a hydraulic controller. The spinning mechanism includes a fixed disk, a rotating table and a rolling cone for flaring and flanging. One end of the fixed disk is connected to the lathe The chuck is connected, and the other end is connected with the rotary table, and the rolling cone is inserted vertically on the rotary table; the clamping mechanism is arranged on the side of the spinning mechanism, and the clamping mechanism includes a support, a hydraulic cylinder, a fixed mold, a movable mold, The movable end of the clamp and the fixed end of the clamp. One end of the support is provided with a hydraulic cylinder arranged vertically and horizontally. The hydraulic cylinder is connected to the hydraulic controller. end, and the other end of the support is provided with a fixed mold and a clamp fixed end. The utility model is fixedly installed on the lathe, and the function and power of the lathe are used to complete the flaring operation and adjustment of the pipe end at any angle between 20° and 90°, which improves work efficiency, reduces labor intensity, and reduces production costs.

Description

A pipe end flaring device

technical field

The utility model relates to a flaring device for metal pipes, which belongs to the technical field of mechanical processing.

Background technique

At present, there are two main methods of flaring the end face of metal pipes: one is manual punching; the other is to use a fixed three-pin flare. The manual punching method has high requirements for operators, large limitations, and low surface finish and shape tolerances. Generally, it is only suitable for copper tubes with low requirements. When using a fixed three-needle flarer, although the centering is accurate, the contact area between the three rolling cones and the pipe end is large, so the axial force generated during flaring is relatively large, and the work hardening phenomenon is serious. The flaring is prone to shrinkage and annealing. In addition, the manufacturing and adjustment of the spinning head of the three-needle flarer is complicated, and once worn out, it cannot be repaired, which increases the manufacturing and production costs.

Utility model content

The purpose of the utility model is to provide an easy-to-use pipe end flaring device aiming at the drawbacks of the prior art, which improves the working efficiency and reduces the labor intensity.

In order to achieve the above object, the utility model adopts the following technical solutions:

A pipe end flaring device, which is fixed on a lathe, includes a spinning mechanism, a clamping mechanism for fixing pipes, and a hydraulic controller for adjusting the action of the clamping mechanism. The spinning mechanism includes a fixed disk, a rotary table and The rolling cone used for flaring and flanging, one end of the fixed plate is connected with the lathe chuck, the other end of the fixed plate is connected with the rotary table, the rotary table is a cylindrical structure, and the bottom surface of the end of the cylindrical body away from the fixed plate It is set as an oblique section, and the rolling cone is inserted vertically on the oblique section of the rotary table.

The clamping mechanism is arranged on the side of the spinning mechanism corresponding to the rolling cone. The clamping mechanism includes a support, a connecting seat, a hydraulic cylinder, a fixed mold, a movable mold, a movable end of the clamp and a fixed end of the clamp. The support It is a concave frame structure with an opening at the top. The support is fixed longitudinally on the lathe workbench. One end of the support is vertically arranged with a hydraulic cylinder vertically and horizontally arranged through the connecting seat. The hydraulic cylinder is connected with the hydraulic controller that controls the expansion and contraction of the piston rod. The end of the piston rod of the hydraulic cylinder is connected with the movable mold, the movable end of the clamp is fixed on the inner side of the movable mold, and the fixed mold matched with the structure of the movable mold and the clamp matched with the movable end structure of the clamp are arranged at the other end of the support. At the fixed end of the clamp, the central axis of the movable mold and the fixed mold coincide with the central axis of the fixed plate, and the central axis of the movable end of the clamp and the fixed end of the clamp coincide with the central axis of the fixed plate.

For the pipe end flaring device mentioned above, a positioning groove is provided eccentrically on the plane end of the rotary table, and a bearing is embedded in the top of the inclined section of the rotary table, and the roller cone is connected with the rotary table through the bearing, and a fixed roller is inserted on the side of the rotary table. The locating pin of the cone, the locating pin vertically abuts on the side end of the rolling cone.

The above pipe end flaring device is characterized in that the end surface of the fixed plate is vertically and outwardly eccentrically provided with a boss matched with the positioning groove, and the boss and the positioning groove are fixedly connected by a positioning bolt.

In the pipe end flaring device described above, guide rails are fixed longitudinally and horizontally on the connecting seat to ensure the smooth movement of the movable die and the moving end of the clamp.

In the pipe end flaring device described above, the end surface of the guide rail close to the rolling cone is provided with a limit ruler for positioning the protruding length of the end surface of the pipe.

The utility model has the advantages of simple structure, convenient maintenance and repair, and reduced production cost. The utility model is fixedly installed on the lathe, the pipe is fixed by the clamping mechanism, the flaring operation is performed by the spinning mechanism, and the flaring operation and adjustment of the pipe end at any angle between 20° and 90° are completed by using the function and power of the lathe , The flaring operation can be formed at one time, which improves work efficiency, is easy to operate, and reduces labor intensity.

The utility model has the advantages of convenient rotation speed selection, adjustable feed speed, and convenient replacement of rolling cones. Flaring adjustments at any angle between 20 degrees and 90 degrees can be completed by using rolling cones with different shapes and structures, and the utility model has a wide range of applications.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the spinning mechanism of the utility model.

The list of each label in the figure is: 1, fixed plate, 2, rotary table, 2-1, positioning groove, 2-2, bearing, 2-3, positioning bolt, 2-4, positioning pin, 3, rolling cone, 4 , clamp fixed end, 5, fixed mold, 6, support, 7, fixing bolt, 8, hydraulic controller, 9, hydraulic cylinder, 10, connecting seat, 11, guide rail, 12, limit ruler, 13, moving Die, 14, clamp moving end, 15, pipe material.

Detailed ways

The utility model relates to a pipe end flaring device, which is fixedly arranged on a lathe when flaring and flanging operations are required on the end face of a pipe. Referring to FIG. 1 , the pipe end flaring device includes a spinning mechanism, a clamping mechanism and a hydraulic controller 8 . One end of the spinning mechanism is fixedly connected to the chuck of the lathe, the clamping mechanism is arranged at the other end of the spinning mechanism for clamping the pipe 15, and the hydraulic controller 8 is used to control the action of the clamping mechanism .

The structure of described spinning mechanism is as shown in Figure 1 and Figure 2, comprises fixed plate 1, rotary table 2 and the rolling cone 3 that is used for flaring flanging, and described fixed plate 1 is a flange plate, and flange plate One side of the flange is provided with a fixed head connected to the lathe chuck, and the other side of the flange is provided with an eccentrically arranged boss vertically outward. The turntable 2 is a cylinder structure, and the bottom surface of one end of the cylinder is a plane; the bottom surface of the other end of the cylinder is set as an oblique section, and a positioning groove 2-1 is eccentrically arranged at the plane end of the turntable 2, and the positioning groove 2-1 is arranged eccentrically. 1 is matched with the boss of the fixed plate 1, the boss is plugged into the positioning groove 2-1, and fixedly connected by the positioning bolt 2-3. A bearing 2-2 is embedded on the top of the oblique section of the turntable 2, the central axis of the bearing 2-2 is perpendicular to the oblique section, and the bearing 2-2 is used to support and assemble the rolling cone 3. The roller cone 3 is inserted vertically on the inclined section of the turntable 2 through the bearing 2-2, and a positioning pin 2-4 is inserted inwardly on the side of the turntable 2, and the positioning pin 2-4 vertically abuts At the side end of the roller cone 3, it is used to axially fix the roller cone 3.

The clamping mechanism includes a support 6 , a connecting seat 10 , a hydraulic cylinder 9 , a fixed mold 5 , a movable mold 13 , a clamp moving end 14 and a clamp fixed end 4 . The fixed mold 5 and the movable mold 13 are assembled together. The clamp movable end 14 and the clamp fixed end 4 are combined and assembled, and the pipe 15 is clamped and fixed by the clamp movable end 14 and the clamp fixed end 4 .

The support 6 is longitudinally arranged on the lathe workbench, and is fixedly connected with the workbench by a plurality of fixing bolts 7 . The support 6 is a concave frame structure with an open top, and a connection seat 10 is vertically arranged at one end of the support 6, and a hydraulic cylinder 9 is arranged inwardly on the end face of the vertical support 6 on the connection seat 10, and the hydraulic cylinder 9 works relative to the lathe The platform is vertically and horizontally arranged, and the hydraulic cylinder 9 is connected with the hydraulic controller 8, and the hydraulic controller 8 controls the expansion and contraction of the piston rod of the hydraulic cylinder 9. The moving mold 13 is fixedly arranged on the end of the piston rod of the hydraulic cylinder 9, and the inner side of the moving mold 13 is fixedly provided with a clamp moving end 14, and the moving mold 13 and the clamp moving end 14 are connected with the hydraulic cylinder under the control of the hydraulic controller 8. 9 piston rods move synchronously. The other end of the support 6 is provided with a fixed mold 5 and a clamp fixed end 4 , the outside of the fixed mold 5 is fixedly arranged on the support 6 , and the inside of the fixed mold 5 is fixedly provided with a clamp fixed end 4 . In order to clamp and fix the pipe material 15 conveniently, the inner surfaces of the clamp fixed end 4 and the clamp movable end 14 are both set as arc surfaces.

A guide rail 11 is arranged vertically inwardly on the connection base 10, and the movable mold 13 and the moving end 14 of the tongs are both arranged in the guide rail 11 to ensure that the moving mold 13 and the moving end 14 of the tongs move smoothly. A limit ruler 12 is arranged on the side end surface of the guide rail 11 close to the rolling cone, which is used to measure and locate the protruding length of the end surface of the pipe material 15, so as to ensure that the size of the flaring flange is accurate.

The working process of the present utility model is:

First, the fixed plate 1 is clamped on the lathe chuck or matched with the taper hole of the lathe spindle to complete the connection between the spinning mechanism and the lathe, and the support 6 is fixed on the lathe worktable through the fixing bolt 7 to complete the clamping mechanism and the controller. 8 connections. After the assembly is completed, ensure that the central axis of the pipe 15 coincides with the central axis of the fixed disk 1 .

Place the pipe 15 that needs to be flared close to the fixed end of the clamp 4, and control the piston rod of the hydraulic cylinder 9 to extend through the hydraulic controller 8, driving the movable mold 13 and the moving end 14 of the clamp to move synchronously, and approach the pipe 15 until Clamp and fix the pipe 15.

Then start the lathe and start the flaring operation: the fixed plate 1 uses the eccentric structure composed of the boss and the positioning groove 2-1 to adjust the rotary table 2, and as the rotary table 2 takes the rolling cone 3 to offset the axis of rotation of the main shaft, the rolling cone 3 The contact surface with the end surface of the pipe 15 changes accordingly, the lathe spindle drives the rotary table to rotate counterclockwise, the lathe table drives the clamping mechanism and the pipe 15 to feed in the direction of the rolling cone 3, and the rolling cone 3 receives the resistance of the end surface of the pipe 15 Rotate clockwise under the action of the bearing 2-2 until the required size is reached, and the workbench drives the clamping mechanism and the pipe 15 to return in reverse to complete the flaring and flanging operation.

When it is necessary to perform flaring operations at different angles, the positioning pins 2-4 can be inserted and pulled out, and the rolling cones with different shapes and structures can be replaced.

Claims (5)

1. a tube end flares device, it is fixedly installed on lathe, it is characterized in that, it comprises spinning machine, the clamp system of fixing tubing and the hydraulic controller (8) of adjustment clamp system action, described spinning machine comprises fixed disk (1), turntable (2) and the tapper (3) for enlarging flange, one end of described fixed disk (1) is connected with lathe chuck, the other end of fixed disk (1) is connected with turntable (2), described turntable (2) is column structure, the bottom surface, one end away from fixed disk (1) of cylinder is set to oblique section, described tapper (3) is vertically plugged on the oblique section of turntable (2),

Described clamp system is arranged on the spinning machine side corresponding with tapper (3), clamp system comprises bearing (6), Connection Block (10), hydraulic cylinder (9), cover half (5), dynamic model (13), clamp mobile terminal (14) and clamp stiff end (4), described bearing (6) is open-topped spill frame structure, bearing (6) is longitudinally fixedly installed on Lathe bench, one end of bearing (6) vertically arranges the hydraulic cylinder (9) of vertical equity layout by Connection Block (10), the hydraulic controller (8) that described hydraulic cylinder (9) stretches with control piston bar is connected, the piston-rod end of hydraulic cylinder (9) is connected with dynamic model (13), the inner side of dynamic model (13) is fixedly installed clamp mobile terminal (14), the other end of bearing (6) arranges the cover half (5) be equipped with mutually with dynamic model (13) structure and the clamp stiff end (4) be equipped with mutually with clamp mobile terminal (14) structure, central axis after dynamic model (13) is equipped with cover half (5) and the central axes of fixed disk (1), central axis after clamp mobile terminal (14) is equipped with clamp stiff end (4) and the central axes of fixed disk (1).

2. a kind of tube end flares device according to claim 1, it is characterized in that, planar ends eccentric setting one locating slot (2-1) of turntable (2), top setting-in bearing (2-2) of the oblique section of turntable (2), tapper (3) is connected with turntable (2) by bearing (2-2), also plug the alignment pin (2-4) for fixing tapper (3) in the side of turntable (2), described alignment pin (2-4) vertical top is connected on the side of tapper (3).

3. a kind of tube end flares device according to claim 2, it is characterized in that, the boss that outside the end face Vertical dimension of fixed disk (1), eccentric setting and locating slot (2-1) are equipped mutually, described boss and locating slot (2-1) are fixedly linked by bolt (2-3).

4. a kind of tube end flares device according to claim 3, is characterized in that, the upper vertical equity of described Connection Block (10) is fixedly installed the guide rail (11) of the stable movement for ensureing dynamic model (13) and clamp mobile terminal (14).

5. a kind of tube end flares device according to claim 4, is characterized in that, described guide rail (11) arranges the position limiting ruler (12) of location tubing (15) end face extension elongation near a side end face of tapper.