CN213103947U - Core penetrating device for square tube bending die - Google Patents

Abstract

The utility model provides a side's pipe bending die wears core device, includes base and the core cylinder of wearing, and the core cylinder of wearing is fixed with the hydro-cylinder seat, and core cylinder piston rod drive core still includes moving mechanism and slewing mechanism, moving mechanism is equipped with the movable plate that can move back and forth relative to the base, slewing mechanism is equipped with two pivot supports and two pivots, and two pivot supports are fixed on the movable plate, and each pivot is supported by the pivot support, and each pivot medial extremity rigid coupling respectively hydro-cylinder seat, and the hydro-cylinder seat can be along with axis of rotation turned angle. The utility model relates to a multi freedom core penetrating device, the device can make core penetrating cylinder along horizontal motion and rotation at the process of bending, greatly increased core penetrating device's flexibility and motion flexibility. Adopt the utility model discloses can penetrate the great core of flexibility degree in square pipe, the process of bending makes core and square pipe follow shape laminating crooked, avoids the drawback that the process of bending side's pipe end cracked or subsided, improves product quality.

Description

Core penetrating device for square tube bending die

Technical Field

The utility model relates to a bending die, especially square pipe bending die wear core device.

Background

The square tube is often to appear the end and press the bad phenomenon such as collapsing when the bending forming processing is being carried out to the side, has seriously influenced product quality, and the solution is to wear a section core before the bending in square tube intracavity to guarantee that the work piece inner chamber has the core to support after the work piece is pushed down to last mould, prevent to collapse in order to guarantee product quality. However, if the core has a high rigidity in the process of bending the square pipe and cannot follow the bent shape of the square pipe, the end of the square pipe is torn and cracked, and therefore the core needs to have high flexibility. The core penetrating device is required to be equipped along with the increase of the flexibility of the core so as to ensure that the core can be contacted with the square pipe along with the shape in the forming process, ensure the bending shape of the square pipe and further improve the product quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high, the nimble side pipe bending die of degree of freedom wears the core device.

The problem of the utility model is realized with following technical scheme:

the utility model provides a side's pipe bending die wears core device, includes base and the core cylinder of wearing, and the core cylinder of wearing is fixed with the hydro-cylinder seat, and core cylinder piston rod drive core still includes moving mechanism and slewing mechanism, moving mechanism is equipped with the movable plate that can move back and forth relative to the base, slewing mechanism is equipped with two pivot supports and two pivots, and two pivot supports are fixed on the movable plate, and each pivot is supported by the pivot support, and each pivot medial extremity rigid coupling respectively hydro-cylinder seat, and the hydro-cylinder seat can be along with axis of rotation turned angle.

According to the core penetrating device for the square pipe bending die, the rotating mechanisms are symmetrically arranged in two sets, the two sets of rotating mechanisms move synchronously, each rotating mechanism is provided with the rotating cylinder and the rotating arm, the rotating cylinder is hinged to the base, the piston rod of the rotating cylinder is hinged to one end of the rotating arm, and the other end of the rotating arm is fixedly connected to the outer side end of the rotating shaft.

According to the core penetrating device for the square tube bending die, the moving mechanism is provided with the moving cylinder and the sliding rail, the sliding rail is fixed on the base, the moving cylinder is fixed with the base, the piston rod of the moving cylinder is connected with the moving plate, the lower portion of the moving plate is fixedly connected with the sliding block, and the sliding block is in sliding fit with the sliding rail.

According to the core penetrating device for the square tube bending die, the two guide plates are fixed on the oil cylinder base, the piston rod of the core penetrating oil cylinder is connected with the guide block, the guide block is located between the two guide plates, and the guide block is connected with the core.

The core penetrating device of the square tube bending die is further provided with a movable plate limiting block on the base.

The utility model discloses sink and the fracture problem design to the end of solving side's pipe bending, the device is a multi freedom and wears the sub-device of core, and the device can make the core hydro-cylinder follow horizontal motion and rotate at the bending process, like this greatly increased the flexibility and the motion flexibility of wearing the sub-device of core. The utility model is suitable for a but by articulated, the core of wearing of relative pivoted core between each core piece of multisection core piece, provide shared frock for the bending of following shape of high pliability core. Adopt the utility model discloses can penetrate the great core of flexibility degree in square pipe, the process of bending makes core and square pipe follow shape laminating crooked, avoids the drawback that the process of bending side's pipe end cracked or subsided, improves product quality.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a wick.

The reference numbers in the figures are: 1. the device comprises a base, 2, a moving cylinder, 3, a core-penetrating oil cylinder, 4, an oil cylinder seat, 5, a guide plate, 6, a guide block, 7, a core, 8, an upper die, 9, a lower die, 10, a rotating shaft support, 11, a moving plate, 12, a rotating shaft, 13, a rotating arm, 14, a moving plate limiting block, 15, a sliding rail, 16, a rotating cylinder, 17 and a square tube.

Detailed Description

Referring to fig. 1, the utility model discloses a base 1 wears core hydro-cylinder 3, wears core hydro-cylinder and installs on cylinder seat 4, and cylinder seat is fixed with two deflectors 5, wears core hydro-cylinder piston rod and connects guide block 6, and the guide block moves between two deflectors, and the core 7 is connected to the guide block. The utility model discloses still including the moving mechanism that can drive hydro-cylinder seat linear motion and the slewing mechanism that can drive the hydro-cylinder seat and rotate certain angle. The moving mechanism includes a moving plate 11, a moving cylinder 2, and a slide rail 15. The movable cylinder is fixed with the base, two parallel slide rails are fixed on the base, a piston rod of the movable cylinder is connected with the movable plate, the lower part of the movable plate is fixedly connected with a slide block (not shown in the figure), and the slide block is in sliding fit with the slide rails. When the piston rod of the moving cylinder moves, the moving mechanism is driven to move, and the moving mechanism drives the core-penetrating oil cylinder to move. The two sets of rotating mechanisms are symmetrically arranged, the two sets of rotating mechanisms move synchronously, and each rotating mechanism comprises a rotating cylinder 16, a rotating shaft support 10 and a rotating shaft 12. The two rotating cylinders are respectively positioned at two sides of the moving cylinder, the bottom of the rotating cylinder is hinged with the base, a piston rod of the rotating cylinder is hinged with one end of a rotating arm 13, the other end of the rotating arm is fixedly connected with the outer side end of a rotating shaft 12, the rotating shaft penetrates through the rotating support, and the inner side end of the rotating shaft is fixedly connected with the oil cylinder base. When the two rotating cylinders act, the rotating arm drives the rotating shaft to rotate, and the rotating shaft drives the oil cylinder seat and the core penetrating oil cylinder to rotate by a certain angle. And a moving plate limiting block 14 for limiting the movement of the moving plate is also arranged on the base.

Still referring to fig. 1, the working process of the present invention is as follows: when an upper die 8 of the die is opened relative to a lower die 9, the moving cylinder acts to push the moving plate to move to a specified position and then is locked; the two rotating cylinders act to drive the rotating arms to rotate, and the two rotating cylinders are locked when the core 7 is in a horizontal position; the core penetrating oil cylinder pushes the core to horizontally penetrate into the cavity of the square pipe 17, and the core penetrating oil cylinder is locked when reaching a specified position; at the moment, the air sources of the movable air cylinder and the rotary air cylinder are cut off, so that the air sources are kept in a floating state, and the core-through oil cylinder is kept locked; the upper die moves downwards to press the square tube to be bent and formed, the core and the square tube are formed in a follow-up manner in the forming process, and the multi-section core blocks change along with the shape of the inner cavity of the square tube; because the air source is cut off by moving the air cylinder and rotating the air cylinder, the oil cylinder seat can translate along the slide rail and rotate along the rotating shaft under the action of external load in the process of pressing the upper die. And after the bending forming is finished, the upper die is lifted, the air sources of the movable air cylinder and the rotary air cylinder are switched on, the air cylinder reversely returns to the initial state, the core penetrating oil cylinder is unlocked, the core is drawn out through the reverse return, and at the moment, a working cycle is finished. The device is used in the bending forming process flexibly, has high flexibility, ensures the shape of the end of the square tube, and further improves the product quality.

Claims (5)

1. The utility model provides a side's pipe bending die wears core son device, includes base (1) and wears core hydro-cylinder (3), and it is fixed with hydro-cylinder seat (4) to wear core hydro-cylinder piston rod drive core (7), its characterized in that: the oil cylinder device is characterized by further comprising a moving mechanism and a rotating mechanism, wherein the moving mechanism is provided with a moving plate (11) capable of moving back and forth relative to the base, the rotating mechanism is provided with two rotating shaft supports (10) and two rotating shafts, the two rotating shaft supports are fixed on the moving plate, each rotating shaft is supported by the corresponding rotating shaft support, the inner side ends of the rotating shafts are fixedly connected with oil cylinder bases respectively, and the oil cylinder bases can rotate with the rotating shafts by an angle.

2. The square tube bending die core penetrating device according to claim 1, wherein: the two sets of rotating mechanisms are symmetrically arranged, the two sets of rotating mechanisms move synchronously, each rotating mechanism is provided with a rotating cylinder and a rotating arm (13), the rotating cylinder (16) is hinged with the base, a piston rod of the rotating cylinder is hinged with one end of the rotating arm, and the other end of the rotating arm is fixedly connected with the outer side end of the rotating shaft.

3. The square tube bending die core penetrating device according to claim 2, wherein: the moving mechanism is provided with a moving cylinder (2) and a sliding rail (15), the sliding rail is fixed on the base, the moving cylinder is fixed with the base, a piston rod of the moving cylinder is connected with a moving plate, the lower part of the moving plate is fixedly connected with a sliding block, and the sliding block is in sliding fit with the sliding rail.

4. The core penetrating device of the square pipe bending die according to claim 3, wherein: two guide plates (5) are fixed on the oil cylinder base, a piston rod of the core-penetrating oil cylinder is connected with a guide block, the guide block is positioned between the two guide plates, and the guide block is connected with the core.

5. The core penetrating device of the square pipe bending die of claim 4, wherein: a moving plate limiting block (14) is also arranged on the base.

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