阅读说明：本技术 一种弯管机中偏心轴的可调防皱装置 (Adjustable crease-resistance device of eccentric shaft in pipe bender ) 是由 吴冠鋐 于 2020-07-23 设计创作，主要内容包括：本发明适用于弯管设备技术领域,提供了一种弯管机中偏心轴的可调防皱装置,包括用于对防皱装置进行前后调节的偏心轴,所述偏心轴的下端安装在防皱模支座内部,并通过所述防皱模支座在防皱模座上进行位置调整,所述偏心轴上端安装在固定板内部,通过转动所述固定板调节插接在所述固定板侧面的防皱模托板的左右位置,所述偏心轴的上端螺接有与所述固定板相固定的调高件用于对所述防皱模托板的高度进行调节；通过转动固定板带动防皱模托板进行角度的改变,对防皱模进行位置调节,最后通过防皱模托板在固定板的T型槽中抽拉实现位置的调节,对防皱模进行位置调节,多种不同方式的位置调节,使得防皱模能够适应不同位置的的管体。(The invention is suitable for the technical field of pipe bending equipment, and provides an adjustable anti-wrinkling device of an eccentric shaft in a pipe bending machine, which comprises an eccentric shaft used for adjusting the anti-wrinkling device back and forth, wherein the lower end of the eccentric shaft is arranged in an anti-wrinkling die support and is subjected to position adjustment on an anti-wrinkling die holder through the anti-wrinkling die support, the upper end of the eccentric shaft is arranged in a fixed plate, the left and right positions of an anti-wrinkling die supporting plate inserted and connected on the side surface of the fixed plate are adjusted through rotating the fixed plate, and the upper end of the eccentric shaft is in threaded connection with an elevation adjusting piece fixed with the fixed plate and used for adjusting the; drive crease-resistance mould layer board through rotating the fixed plate and carry out the change of angle, carry out position control to the crease-resistance mould, realize the regulation of position through crease-resistance mould layer board pull in the T type groove of fixed plate at last, carry out position control to the crease-resistance mould, the position control of multiple different modes for the crease-resistance mould can adapt to the body of different positions.)

1. The utility model provides an adjustable crease-resistance device of eccentric axle in bending machine which characterized in that: including being used for carrying out the eccentric shaft (3) of fore-and-aft regulation to crease-resistant device, the lower extreme of eccentric shaft (3) is installed inside crease-resistant mould support (2), and passes through crease-resistant mould support (2) carry out the position control on crease-resistant die holder (1), install inside the fixed plate eccentric shaft (3) upper end, through rotating the fixed plate is adjusted and is pegged graft position about the crease-resistant mould layer board (7) of fixed plate side, the upper end spiro union of eccentric shaft (3) with the fixed piece of increaseing that the fixed plate phase is fixed is used for right the height of crease-resistant mould layer board (7) is adjusted.

2. The adjustable anti-creasing device for an eccentric shaft of a pipe bender according to claim 1, characterized in that: crease-resistance mould support (2) are in spout (11) of crease-resistance mould base (1) through runner (21) sliding connection, it is right that crease-resistance mould support (2) run through threaded hole (25) through fixing bolt (22) runner (21) with crease-resistance mould support (2) are fixed.

3. The adjustable anti-creasing device for an eccentric shaft of a pipe bender according to claim 1, characterized in that: the eccentric shaft (3) is composed of a lower shaft (31), a middle disc (32) and an upper shaft (33), the upper shaft (33) is eccentrically arranged on the upper surface of the middle disc (32), and the lower shaft (31) and the middle disc (32) are coaxially arranged.

4. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 3, wherein: the center of the crease-resistant die support (2) is provided with a rotating hole (23), and the side of the rotating hole (23) is provided with a locking groove (24) communicated with the rotating hole.

5. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 4, wherein: the lower shaft (31) is rotatably arranged in the rotating hole (23), and a locking bolt (26) for locking the lower shaft (31) is inserted into the locking groove (24).

6. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 5, wherein: the fixing plate comprises a front fixing plate (5) and a rear fixing plate (4) which are in threaded connection through bolts, a hole is formed between the front fixing plate (5) and the rear fixing plate (4), and an upper shaft (33) of the eccentric shaft (3) is arranged in the hole.

7. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 6, wherein: the upper surface of the front fixing plate (5) is rotatably connected with one end of a rotating sheet (8) of the height adjusting piece, and the other end of the rotating sheet (8) is in threaded connection with a depth hole (331) of the upper shaft (33) through a rotating adjusting bolt (9) and is used for adjusting the height of the fixing plate.

8. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 6, wherein: the side surface of the rear fixing plate (4) is also fixed with a dovetail block (6) through a bolt, and the dovetail block (6) is flush with the front fixing plate (5).

9. The adjustable anti-wrinkling device for the eccentric shaft of the bending machine according to claim 8, wherein: dovetail blocks (6) with the side of preceding fixed plate (5) all seted up the dovetail groove, the inside grafting of dovetail groove has crease-resistance mould layer board (7).

Technical Field

The invention belongs to the technical field of pipe bending equipment, and particularly relates to an adjustable crease-resist device of an eccentric shaft in a pipe bending machine.

Background

When bending a pipe with a large diameter, but with a small bending radius and a thin pipe wall, a blank-proof die and a ball core rod are used, when the pipe is bent, the material inside the central line of the pipe is compressed, when the pipe is bent to a certain angle, the material is pushed back and exceeds the tangent point due to the large compression force of the material, if the pipe wall in the area is not supported by the bending die, wrinkles are formed, and even if the pipe is flattened by the space between the core rod and the bending die, the wrinkles cannot be eliminated. After the bending is finished, a large wrinkle is formed on the pipe, and the support of the area can be increased by using the anti-wrinkling mould, so that the pipe wall is uniformly thickened after being compressed, and no wrinkle is generated. However, since the shape of the wrinkle-preventing die is very important, the wrinkle cannot be removed by the wrinkle-preventing die after wrinkles have been generated due to improper adjustment. The groove through which the tube slides should be slightly larger than the outer diameter of the tube, which may be 10% of the wall thickness, and should be carefully polished to prevent the tube from being scratched, and the front end of the wrinkle preventing die should be made thin, extended to the tangent point of the bending die, supported by the bending die, and fixed to form a closed cavity. In order to reduce the resistance during bending, the blank-proof die should have a slightly smaller taper during installation, the pressure of the die should be adjusted appropriately, and during installation and adjustment of the blank-proof die, it is preferable to use an "adjustment mandrel" which is clamped by the clamping die and to apply an appropriate amount of oil to the blank-proof die during bending. However, too much or too thick oil also causes wrinkles in this area, and a ball-point mandrel is often used simultaneously with the use of a wrinkle-preventing die. The anti-wrinkling die is used for preventing the pipe from wrinkling during bending; the spherical core rod can keep the pipe away from the supporting point of the core rod, and the pipe is supported not to be collapsed.

The position control of bending machine crease-resistance mould when using is single in the existing market, can't carry out better angle adaptation to the body from different directions or angle, leads to the body to buckle when easily wrinkle.

Disclosure of Invention

The invention provides an adjustable anti-wrinkling device of an eccentric shaft in a pipe bender, and aims to solve the problem that an angle of an anti-wrinkling die is single.

The invention is realized in such a way that the adjustable anti-wrinkling device of the eccentric shaft of the pipe bending machine comprises an eccentric shaft used for adjusting the anti-wrinkling device back and forth, the lower end of the eccentric shaft is arranged inside an anti-wrinkling die support and is adjusted in position on an anti-wrinkling die holder through the anti-wrinkling die support, the upper end of the eccentric shaft is arranged inside a fixed plate, the left and right positions of an anti-wrinkling die supporting plate inserted and connected on the side surface of the fixed plate are adjusted through rotating the fixed plate, and the upper end of the eccentric shaft is in threaded connection with an elevation adjusting piece fixed with the fixed plate and used for adjusting the height of the anti-.

Preferably, the crease-resistant die support is connected to the chute of the crease-resistant die holder through a sliding foot sliding connection, and the crease-resistant die support is right through a fixing bolt through threaded hole the sliding foot and the crease-resistant die support are fixed.

Preferably, the eccentric shaft is composed of a lower shaft, a middle disc and an upper shaft, the upper shaft is eccentrically arranged on the upper surface of the middle disc, and the lower shaft and the middle disc are coaxially arranged.

Preferably, the center of the crease-resist die support is provided with a rotating hole, and the side of the rotating hole is provided with a locking groove communicated with the rotating hole.

Preferably, the lower shaft is rotatably disposed inside the rotation hole, and a locking bolt for locking the lower shaft is inserted into the locking groove.

Preferably, the fixing plate comprises a front fixing plate and a rear fixing plate which are in threaded connection with each other through bolts, a hole is formed between the front fixing plate and the rear fixing plate, and an upper shaft of the eccentric shaft is arranged in the hole.

Preferably, one end of the rotating sheet of the height adjusting piece is rotatably connected to the upper surface of the front fixing plate,

preferably, the other end of the rotating piece is screwed with the depth hole of the upper shaft through a rotating adjusting bolt for adjusting the height of the fixing plate.

Preferably, a dovetail block is further fixed to the side surface of the rear fixing plate through a bolt, and the dovetail block is flush with the front fixing plate.

Preferably, dovetail grooves are formed in the side faces of the dovetail block and the front fixing plate, and the crease-resistant die supporting plate is inserted into the dovetail grooves.

Compared with the prior art, the invention has the beneficial effects that: according to the adjustable crease-resistance device for the eccentric shaft of the pipe bender, the crease-resistance die support is used for adjusting the position of a crease-resistance die in a chute of a crease-resistance die holder through a sliding foot, so that the position of the crease-resistance die is adjusted; the eccentric shaft drives the fixing plate and the crease-resistant die supporting plate to adjust the position by rotating the middle disc of the eccentric shaft, so that the crease-resistant die is adjusted; drive crease-resistance mould layer board through rotating the fixed plate and carry out the change of angle, carry out position control to the crease-resistance mould, realize the regulation of position through crease-resistance mould layer board pull in the T type groove of fixed plate at last, carry out position control to the crease-resistance mould, the position control of multiple different modes for the crease-resistance mould can adapt to the body of different positions.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic structural view of a blank holder according to the present invention;

FIG. 4 is a schematic view of the eccentric shaft according to the present invention;

in the figure: 1. a crease-resist die holder; 11. a chute; 2. a crease-resist die support; 21. a sliding foot; 22. fixing the bolt; 23. rotating the hole; 24. a locking groove; 25. a threaded hole; 26. locking the bolt; 3. an eccentric shaft; 31. a lower shaft; 32. a middle disc; 33. an upper shaft; 331. a depth hole; 4. a rear fixing plate; 5. a front fixing plate; 6. a dovetail block; 7. a crease-resist mould supporting plate; 8. a rotating sheet; 9. and adjusting the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an adjustable crease-resistance device of eccentric axle in bending machine, including the eccentric shaft 3 that is used for going on the fore-and-aft regulation to the crease-resistance device, install inside crease-resistance die support 2 the lower extreme of eccentric shaft 3 to carry out position adjustment on crease-resistance die holder 1 through crease-resistance die support 2, install inside the fixed plate eccentric shaft 3 upper end, adjust the left and right sides position of the crease-resistance die layer board 7 of grafting in the fixed plate side through rotating the fixed plate, the upper end spiro union of eccentric shaft 3 has the height-adjusting piece of fixing mutually to be used for adjusting crease-resistance die layer board 7.

In the present embodiment, the position of the crease-resist die holder 2 is adjusted in the chute 11 of the crease-resist die holder 1 by the slide foot 21, so that the upper eccentric shaft 3, the fixed plate and the crease-resist die supporting plate 7 are adjusted in position; by rotating the middle disc 32 of the eccentric shaft 3, the eccentric shaft 3 rotates in the rotating hole 23 of the crease-resist die support 2 by the lower shaft 31, and drives the upper shaft 33 to eccentrically rotate, so as to drive the fixing plate and the crease-resist die supporting plate 7 to adjust the position; drive crease-resistance mould layer board 7 through rotating the fixed plate and carry out the change of angle, realize the regulation of position through crease-resistance mould layer board 7 pull in the T type groove of fixed plate at last, the position control of multiple different modes for the body of crease-resistance mould can adapt to different positions.

Further, crease-resistant mould support 2 passes through runner 21 sliding connection in the spout 11 of crease-resistant mould base 1, and crease-resistant mould support 2 passes through threaded hole 25 through fixing bolt 22 and fixes runner 21 and crease-resistant mould support 2.

In the present embodiment, the blank holder 2 is fixed to the shoe 21 by the fixing bolt 22, and the shoe 21 slides in the slide groove 11 of the blank holder 1 to adjust the position of the blank holder 2, so that the eccentric shaft 3, the fixing plate, and the blank holder 7 above the blank holder 1 are adjusted in position.

Furthermore, a rotation hole 23 is formed in the center of the blank-proof mold support 2, a locking groove 24 communicated with the rotation hole 23 is formed on the side of the rotation hole 23, a lower shaft 31 of the eccentric shaft 3 is rotatably arranged in the rotation hole 23, and a locking bolt 26 for locking the lower shaft 31 is inserted into the locking groove 24.

In this embodiment, the rotation hole 23 is used for inserting and rotating the lower shaft 31 of the eccentric shaft 3, the middle disc 32 of the eccentric shaft 3 is rotated to drive the eccentric shaft 3 to rotate by taking the lower shaft 31 as a shaft, so as to realize the eccentric rotation of the upper shaft 33, drive the fixed plate fixed by the upper shaft 33 to change the position, the locking groove 24 is communicated with the rotation hole 23, and the lower shaft 31 of the eccentric shaft 3 which is rotated is screwed, extruded and locked by the locking bolt 26 to prevent free rotation.

Further, the fixing plate includes a front fixing plate 5 and a rear fixing plate 4 which are screwed to each other by a bolt, a hole is formed between the front fixing plate 5 and the rear fixing plate 4, and an upper shaft 33 of the eccentric shaft 3 is disposed inside the hole.

In this embodiment, the front fixing plate 5 and the rear fixing plate 4 clamp and fix the upper shaft 33 of the eccentric shaft 3 in a clamping manner, so that the front fixing plate 5 and the rear fixing plate 4 can rotate around the upper shaft 33 of the eccentric shaft 3, the angle of the front fixing plate 5 is adjusted, the crease-resistant die supporting plate 7 is changed in angle, and the crease-resistant die is changed in direction.

Further, the upper surface of the front fixing plate 5 is rotatably provided with a rotating sheet 8 of a height adjusting member, and the other end of the rotating sheet 8 is screwed with the depth hole 331 of the upper shaft 33 through a rotating adjusting bolt 9 for adjusting the height of the fixing plate.

In this embodiment, the one end of rotor plate 8 is fixed on preceding fixed plate 5, the other end passes through pivoted adjusting bolt 9 to be fixed in the degree of depth hole 331 of upper shaft 33, through rotating adjusting bolt 9, the position of adjusting bolt 9 lower extreme in degree of depth hole 331 changes, adjusting bolt 9 upper end is unchangeable on rotor plate 8 simultaneously, and then make adjusting bolt 9 drive rotor plate 8 and rise, rotor plate 8 drives preceding fixed plate 5 and rises, preceding fixed plate 5 drives after-fixing board 4 and dovetail block 6 and rises, dovetail block 6 and preceding fixed plate 5 drive crease-resistance mould layer board 7 and rise the realization and adjust the crease-resistance mould height.

Further, the side of rear fixed plate 4 still has forked tail piece 6 through the bolt fastening, and this forked tail piece 6 and 5 looks parallel and level of preceding fixed plate, dovetail groove have all been seted up to the side of forked tail piece 6 and preceding fixed plate 5, and the inside grafting of dovetail groove has crease-resistance mould layer board 7.

In this embodiment, the front fixing plate 5 and the dovetail block 6 are configured to clamp and support the trapezoidal wrinkle-proof die carrier plate 7 through the common trapezoidal groove, so that the wrinkle-proof die carrier plate 7 is automatically adjusted in position on the dovetail block 6 and the front fixing plate 5, thereby adjusting the position of the wrinkle-proof die.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.