CN212792539U

CN212792539U - Pipe bending device

Info

Publication number: CN212792539U
Application number: CN202021601178.9U
Authority: CN
Inventors: 孙国
Original assignee: Shanghai Shengchang Industrial Co ltd
Current assignee: Shanghai Shengchang Industrial Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-26
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a pipe fitting bending device relates to the bending device field, including the processing platform, fix on the processing platform as the fulcrum spare of the fulcrum of bending and fix on the processing platform with the locating part of fulcrum spare cooperation restriction pipe fitting one end tip swing automation, the last rotation of processing platform is provided with the axis pivoted arm of bending around the fulcrum spare, can dismantle on the arm of bending and be fixed with the bending piece of applying the bending force to the pipe fitting free end. To the problem that current bender needs power supply, inconvenient removal, the utility model has the advantages of human drive, can adapt to multiple work occasion.

Description

Pipe bending device

Technical Field

The utility model relates to a bending device field, more specifically say, it relates to a pipe fitting bending device.

Background

Bending of metal pipe pieces, which often requires the use of bending machines, is often required in industrial processes.

For the existing Chinese patent with the patent publication number of CN205128682U, the integrated four-bending machine comprises a bending machine, wherein the bending machine consists of four bending mechanisms arranged on the same frame, and the bottom of the frame of the bending machine is provided with traveling wheels and positioning support columns; the four bending mechanisms are respectively arranged on a frame of the bending machine through respective driving shafts and driven shafts, and an upper bending double roller and a lower bending double roller which are matched with each other in a rolling manner are fixedly sleeved on the driving shaft and the driven shaft of each bending mechanism.

In the above-mentioned patent, four benders go on for using driving motor, need provide the power for equipment in the use, still are provided with driving motor and other drive mechanism except bending the mechanism on the bender, lead to the weight of bender great, need power supply and equipment quality to have restricted the use place and the transport degree of difficulty of bender greatly.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing a pipe fitting device of buckling, it has manpower drive, the limited little advantage of use occasion, owing to saved electric drive mechanism, has simplified the structure of device self, and it is comparatively convenient that the device removes.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pipe fitting device of buckling, includes the processing platform, fixes processing platform is last as the fulcrum spare of the fulcrum of bending and fixes processing platform on with fulcrum spare cooperatees the locating part of restriction pipe fitting one end tip swing automation, the last rotation of processing platform is provided with and winds the axis pivoted arm of bending of fulcrum spare, can dismantle on the arm of bending and be fixed with the bending piece of applying the bending force to the pipe fitting free end.

Through above-mentioned technical scheme, the fulcrum piece is as the fulcrum of bending, and the locating part carries on spacingly to the one end free end of pipe fitting, and the time pressure to the pipe fitting of bending piece under the drive of bending arm makes the pipe fitting buckle, and convenient to use need not electric drive, has reduced operational environment's restriction, has saved driving motor and transmission, has effectively reduced device weight, and the transport of device is comparatively convenient.

The present invention may be further configured in a preferred embodiment as: the fulcrum spare is including fixing fixed wheel on the processing platform, the piece that bends is including rotating to be fixed the driving wheel on the arm bends, the fixed wheel with equal coaxial annular arc groove of indent of seting up on the lateral wall of driving wheel.

By the technical scheme, the annular arc groove can be attached to the side wall of the pipe fitting more fully, the contact area is increased, and the damage of the fixed wheel and the driving wheel to the side wall of the pipe fitting in the bending process is reduced; the annular arc groove of indent can also play spacing effect to the pipe fitting, and the pipe fitting also can move to the intermediate position of fixed wheel and driving wheel under the pressure effect in the bending process, makes the pipe fitting have stable processing position at the in-process of bending, improves the quality of bending.

The present invention may be further configured in a preferred embodiment as: the fixed wheel and the bending arm are rotationally fixed on the processing platform through a fixed shaft bolt, and a heightening gasket, the bending arm and a fixing nut which are sleeved on the fixed shaft bolt and lift the bending arm are sequentially arranged above the processing platform from bottom to top;

the movable wheel moves and is rotated through the moving axis bolt and fixes on the bending arm, run through on the bending arm and offer and be used for wearing to establish the mounting hole of moving axis bolt, from the bottom up on the moving axis bolt in proper order the cover be equipped with the mounting washer the bending arm driving wheel and fixation nut.

According to the technical scheme, the fixed wheel and the movable wheel respectively rotate around the fixed shaft bolt and the movable shaft bolt, so that the interference of friction force generated by the change of the relative positions of the pipe fitting relative to the fixed wheel and the movable wheel to the bending process can be reduced; the heightening washer lifts the bending arm of the heightening washer, so that the bending arm is separated from the surface of the processing platform, and the friction resistance in the process of rotating the bending arm can be effectively reduced.

The present invention may be further configured in a preferred embodiment as: the bending arm is provided with a plurality of mounting holes, and the distance between each mounting hole and the dead axle bolt is different.

Through above-mentioned technical scheme, change the mounted position of driving wheel and can adjust the interval between fixed wheel and the driving wheel, practicality when having improved bending device and using.

The present invention may be further configured in a preferred embodiment as: the bending arm comprises a long rectangular plate-shaped mounting section and a long cylindrical force arm extension section which is fixed at one end of the mounting section and is parallel to the length direction of the mounting section along the axis, and an insertion hole is formed in one end, far away from the mounting section, of the force arm extension section;

one end, far away from the force arm extension section, of the installation section is rotationally fixed on the fixed shaft bolt, and the installation holes are formed in the installation section and are linearly distributed along the length direction of the installation section.

Through above-mentioned technical scheme, the effect of extension arm of force can be played to the arm of force extension section, and the ability idol reduces the human consumption, and the jack of arm of force extension section tip can be inserted and establish metal rod spare and then the extension arm of force once more.

The present invention may be further configured in a preferred embodiment as: the limiting part comprises a fixed plate fixed above the processing platform and a movable plate which is movably adjusted to be away from the fixed plate.

Through above-mentioned technical scheme, through the centre gripping of fixed plate and movable plate, fix the free end of pipe fitting one end, spacing effect is reliable, owing to make the contact of face and line or face and face, the shanghai that the locating part caused the lateral wall of pipe fitting is less.

The present invention may be further configured in a preferred embodiment as: the processing platform with the below of movable plate runs through and has seted up waist shape hole, wear to be equipped with in the waist shape hole and connect soon the fixing bolt of movable plate bottom, the central line perpendicular to fixed plate of waist shape hole length direction, waist shape hole is provided with two.

Through the technical scheme, the movable plate is adjusted or fixed by loosening or screwing the fixing bolt; the cooperation of two waist shape holes and two fixing bolt has better direction effect and stability, can be reliable guarantee the relative position of fixed plate and movable plate.

The present invention may be further configured in a preferred embodiment as: the processing platform is a circular plate-shaped processing platform, and the fulcrum piece is coaxial with the processing platform.

Through above-mentioned technical scheme, the circular shape processing platform cooperation that can be better bending arm pivoting's the mode of bending, the circular shape processing platform coaxial with the fulcrum spare can effectively avoid the workman to take place to collide with processing platform at the in-process that rotates bending arm.

The present invention may be further configured in a preferred embodiment as: the lower end of the processing platform is fixedly provided with three supporting legs which are made of angle iron sectional materials and are vertically arranged.

Through above-mentioned technical scheme, angle bar section has lighter quality under the circumstances that has sufficient support strength, and is less to the weight increase of bending device.

To sum up, the utility model discloses a following at least one useful technological effect:

(1) the manual-driven bending device is formed by combining the fulcrum piece, the bending piece and the bending arm, power supply is not needed, the site limitation is reduced, the self weight of the device is reduced without excessive driving equipment, and the device is convenient to carry so as to adjust the working position;

(2) furthermore, the bending arm is separated from the processing platform by arranging the heightening washer, and the fixed wheel and the driving wheel are rotationally fixed, so that the interference of friction resistance on bending action and pipe bending quality during pipe bending is effectively reduced, the pipe bending is more labor-saving, and the quality of a bent pipe is improved;

(3) further, the circumferential sides of the fixed wheel and the driving wheel are arranged to be the concave annular arc grooves, so that the position of the pipe fitting in the vertical direction is more stable when the pipe fitting is bent, the pipe fitting is not prone to generating larger errors due to vertical dislocation, the fixed wheel and the driving wheel are more sufficient in contact with the pipe fitting, and the damage to the side wall of the pipe fitting caused by the abutting force in the bending process is reduced.

Drawings

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

fig. 2 is a sectional view taken along line a-a of fig. 1.

Reference numerals: 1. a processing platform; 11. a waist-shaped hole; 2. a fulcrum member; 21. a dead axle bolt; 22. fixing the wheel; 23. heightening washers; 3. a limiting member; 31. a fixing plate; 32. moving the plate; 4. bending the arm; 41. an installation section; 411. mounting holes; 42. an extension section of the force arm; 5. bending the part; 51. a moving shaft bolt; 52. a driving wheel; 53. installing a gasket; 6. supporting legs; 7. and an annular arc groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A pipe bending device is shown in figure 1 and comprises a processing platform 1, a fulcrum piece 2 fixed on the processing platform 1 and used as a bending fulcrum, and a limiting piece 3 fixed on the processing platform 1 and matched with the fulcrum piece 2 to limit the swing automation degree of one end of the pipe, wherein a bending arm 4 rotating around the axis of the fulcrum piece 2 is rotatably arranged on the processing platform 1, and a bending piece 5 applying bending force to the free end of the pipe can be detachably fixed on the bending arm 4.

The processing platform 1 is a processing platform supported by a circular iron plate, three obliquely-placed supporting legs 6 are fixedly welded on the lower end face of the processing platform 1, and the supporting legs 6 are supported by angle iron sectional materials; can place whole processing platform 1 on iron plate placing surface when in-service use, make placing of processing platform 1 more stable through with supporting legs 6 and iron plate welded fastening.

The limiting part 3 comprises a fixed plate 31 fixed above the processing platform 1 in a welding mode and a movable plate 32 movably adjusting the distance between the fixed plate 31 and the movable plate 32, the surfaces of the fixed plate 31 and the movable plate 32 are parallel, the fixed plate 31 and the movable plate 32 fix the free ends of the pipe fittings in a clamping mode, the parallel surfaces enable the side walls of the pipe fittings to be fully contacted with the surfaces of the fixed plate 31 or the movable plate 32, and the fixed plate 31 and the movable plate 32 can achieve a better limiting effect; a kidney-shaped hole 11 is formed in the processing platform 1 and below the movable plate 32 in a penetrating manner, a fixing bolt is arranged in the kidney-shaped hole 11 in the lower direction of the processing platform 1, the end of the fixing bolt is screwed at the bottom end of the movable plate 32, the central line of the kidney-shaped hole 11 in the length direction is perpendicular to the fixing plate 31, the movable plate 32 is fixed on the processing platform 1 through the fixing bolt, and the movable plate 32 can be moved along the length direction of the kidney-shaped hole 11 by unscrewing the fixing bolt; the two waist-shaped holes 11 are arranged, the two corresponding fixing bolts are arranged, so that the movable plate 32 is more stable to fix, and when the movable plate 32 is moved, the two waist-shaped holes 11 can play a better guiding role, so that the plate surfaces of the fixed plate 31 and the movable plate 32 are kept parallel.

Referring to fig. 1, the bending arm includes an installation section 41 in the shape of a long rectangular plate and an arm extension section 42 welded and fixed to one end of the installation section 41 in the length direction; one end of the mounting section 41 is rotationally fixed on the processing platform 1, the length of the mounting section 41 is longer than the radius of the processing platform 1, and the force arm extension section 42 is positioned outside the processing platform 1; the force arm extension section 42 is a pipe fitting with the same axial direction as the length direction of the installation section 41, a central through hole of the pipe fitting is used as an insertion hole, a metal rod piece is inserted into the force arm extension section 42 according to the use condition, the length of the force arm can be conveniently extended, and a worker can bend the metal pipe fitting more labor-saving.

Referring to fig. 1 and 2, a cylindrical fixing hole is coaxially formed in the center of the processing platform 1 in a penetrating manner, a fixed shaft bolt 21 penetrates through the fixing hole, the lower end of the fixed shaft bolt 21 is inserted into the fixing hole, and a bolt head of the fixed shaft bolt 21 abuts against the bottom end of the processing platform 1 and is welded and fixed; the fulcrum piece 2 comprises a fixed shaft bolt 21, a heightening washer 23 sleeved on the fixed shaft bolt 21, a fixed wheel 22 sleeved on the fixed shaft bolt 21 and a fixing nut screwed on the upper end of the fixed shaft bolt 21, the heightening washer 23 and the fixed wheel 22 are coaxial, one end of an installation section 41 of the bending arm 4 is positioned between the heightening washer 23 and the fixed wheel 22 and is fixed on the fixed shaft bolt 21 in a rotating mode through the sleeving, the heightening washer 23 heightens the installation section 41, the installation section 41 is separated from a processing piece platform, and the friction resistance received when the bending arm 4 rotates around the shaft is reduced.

The bending piece 5 comprises a driving wheel 52 which is rotationally fixed on the bending arm 4 through a moving shaft bolt 51, and a mounting hole 411 for penetrating the moving shaft bolt 51 is formed in the bending arm 4 in a penetrating manner; a plurality of mounting holes 411 are formed along the length direction of the mounting section 41, and the plurality of mounting holes 411 are uniformly distributed in a linear array along the length direction of the mounting section 41; the moving shaft bolt 51 is sleeved with a mounting washer 53, a bending arm 4, a moving wheel 52 and a fixing nut in sequence from bottom to top.

The diameter of the section of the fixed wheel 22 is smaller than that of the section of the movable wheel 52, the side walls of the fixed wheel 22 and the movable wheel 52 are coaxially provided with an inward-concave annular arc groove 7, the annular arc groove 7 has a good limiting effect on the pipe fitting, meanwhile, the pipe fitting can better fit the arc contour of the pipe fitting, and the damage to the side wall of the pipe fitting caused by bending the fixed wheel 22 and the movable wheel 52 is reduced; the plane of the side wall of one side of the fixed plate 31 and the moving plate 32 of the limiting part 3 is tangent to the drawing arc surface of the annular arc groove 7 on the fixed wheel 22, and the fixed plate 31 is vertically arranged.

The heightening washer 23 and the mounting washer 53 are both low friction-coefficient washers.

In summary, the utility model, through the combination of the fixed wheel 22, the bending arm 4 and the driving wheel 52, needs no electric drive, and workers can directly and manually bend the pipe fittings, so the use is more convenient; in the pipe bending process, the fixed wheel 22 and the movable wheel 52 rotate, so that the interference of the relative positions of the movable wheel 52 and the pipe and the change of the relative positions of the fixed wheel 22 and the movable wheel 52 on the bending action in the bending process is reduced, and the bending process is optimized; the distance between the movable wheel 52 and the fixed wheel 22 can be adjusted by changing the installation position of the movable wheel 52 so as to adapt to the requirements of different bending angles, and the flexibility and the practicability of the bending device during use are improved.

The utility model discloses during the use, adjust the interval between fixed plate 31 and the movable plate 32 according to the size of pipe fitting diameter size, insert between fixed plate 31 and the movable plate 32 with passing and pasting the inner wall of annular arc groove 7 on the fixed wheel 22 between pipe fitting spinning wheel 22 and the driving wheel 52, exert thrust to the one end that the arm of buckling was kept away from processing platform 1, driving wheel 52 compresses tightly the lateral wall of pipe fitting and bends the pipe fitting, after buckling to needs angle, will play this pen and reset, take out the pipe fitting that buckles.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pipe fitting bending device, its characterized in that includes processing platform (1), fixes processing platform (1) go up as fulcrum spare (2) of the fulcrum of bending and fix processing platform (1) go up with fulcrum spare (2) cooperate and restrict locating part (3) of pipe fitting one end tip swing automaticity, it is provided with around to rotate on processing platform (1) the axis pivoted of fulcrum spare (2) arm of bending (4), can dismantle on the arm of bending (4) and be fixed with and exert the bending piece (5) of bending force to the pipe fitting free end.

2. A pipe bending device according to claim 1, wherein the fulcrum piece (2) comprises a fixed wheel (22) fixed on the processing platform (1), the bending piece (5) comprises a movable wheel (52) rotatably fixed on the bending arm (4), and the side walls of the fixed wheel (22) and the movable wheel (52) are coaxially provided with concave annular arc grooves (7).

3. The pipe bending device according to claim 2, wherein the fixed wheel (22) and the bending arm (4) are rotatably fixed on the processing platform (1) through a fixed shaft bolt (21), and a heightening washer (23) which is sleeved on the fixed shaft bolt (21) and used for lifting the bending arm (4), the bending arm (4) and a fixing nut are sequentially arranged above the processing platform (1) from bottom to top;

driving wheel (52) move and rotate through moving axis bolt (51) and fix on bending arm (4), run through on bending arm (4) and offer and be used for wearing to establish mounting hole (411) of moving axis bolt (51), from the bottom up on moving axis bolt (51) is overlapped in proper order and is equipped with mounting washer (53) bending arm (4) driving wheel (52) and fixation nut.

4. A pipe bending apparatus according to claim 3, wherein a plurality of said mounting holes (411) are formed in said bending arm (4), and the distance between each said mounting hole (411) and said dead bolt (21) is different.

5. A pipe bending device according to claim 4, wherein the bending arm (4) comprises an installation section (41) in the shape of an elongated rectangular plate and a long cylindrical force arm extension section (42) which is fixed at one end of the installation section (41) and has an axis parallel to the length direction of the installation section (41), and a jack is arranged at one end of the force arm extension section (42) far away from the installation section (41);

one end, far away from the force arm extension section (42), of the installation section (41) is rotationally fixed to the fixed shaft bolt (21), and the installation holes (411) are formed in the installation section (41) and are linearly distributed along the length direction of the installation section (41).

6. A pipe bending apparatus according to claim 1, wherein said limiting member (3) comprises a fixed plate (31) fixed above said processing platform (1) and a movable plate (32) movable to adjust a distance from said fixed plate (31).

7. The pipe bending device according to claim 6, wherein a waist-shaped hole (11) penetrates through the processing platform (1) and below the moving plate (32), a fixing bolt screwed at the bottom end of the moving plate (32) penetrates through the waist-shaped hole (11), the center line of the waist-shaped hole (11) in the length direction is perpendicular to the fixing plate (31), and two waist-shaped holes (11) are provided.

8. A tube bending device according to claim 1, wherein said working platform (1) is a circular plate-shaped working table, and said fulcrum member (2) is coaxial with said working platform (1).

9. A pipe bending device according to claim 8, wherein three vertically arranged support feet (6) made of angle iron profiles are fixed to the lower end of the processing platform (1).