CN213195158U

CN213195158U - Pipe bender

Info

Publication number: CN213195158U
Application number: CN202022019072.4U
Authority: CN
Inventors: 张孟仁; 何富平
Original assignee: Taicang Jinquan Metal Product Co ltd
Current assignee: Taicang Jinquan Metal Product Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-14
Anticipated expiration: 2030-09-15

Abstract

The utility model belongs to the technical field of machining and specifically relates to a bending machine is related to, it includes workstation, ejector sleeve subassembly, fixed subassembly, return bend subassembly, sets up the slide rail on the workstation, through the pneumatic cylinder of the rack below in the control ejector sleeve subassembly, highly adjusting of rack, during the pipe fitting that makes to fall into the rack pushed down the return bend subassembly under the effect that promotes the cylinder, because the length of pipe fitting is different, slides the rack and sets up on the workstation, control ejector sleeve subassembly and return bend subassembly's distance. This application has the pipe diameter according to the pipe fitting, the difference of length, and the adjustment pipe fitting position makes the better effect of return bend effect.

Description

Pipe bender

Technical Field

The application relates to the field of machining, in particular to a pipe bending machine.

Background

The pipe bender can be used as a jack for bending pipes, is roughly divided into a numerical control pipe bender, a hydraulic pipe bender and the like, and is applied to pipeline laying and building in the aspects of electric power construction, highway construction, bridges, ships and the like. Pipe bending machines can be broadly classified into numerical control pipe bending machines, hydraulic pipe bending machines, and the like.

At present, chinese patent No. CN206240998U discloses a pipe bending machine, wherein the pipe pushing mechanism is slidably connected to the frame and is pushed by a driving unit to approach or separate from the pipe bending mechanism, the driving unit includes a rack fixed on the frame and a driving motor fixed on the pipe pushing mechanism, an output shaft of the driving motor is provided with a driving gear, and the driving gear is engaged with the rack.

Carry out the return bend to the pipe fitting of different models, need change different return bend subassemblies when the return bend, if do not change can lead to return bend subassembly and pipe fitting to mismatch to cause the return bend effect not good, also need the manual work to carry out the guan yu return bend sometimes, consume a large amount of manual works, it is more loaded down with trivial details, whole work efficiency is lower.

SUMMERY OF THE UTILITY MODEL

In order to adapt to the work of bending to the tubular product of different models, solve work efficiency's problem, this application provides a bending machine.

The application provides a bending machine adopts following technical scheme:

a pipe bending machine comprises a workbench, wherein a push pipe assembly, a fixing assembly and a pipe bending assembly are arranged on the workbench at one time, a slide rail is arranged on the surface of the workbench, the push pipe assembly comprises a placing frame, a bottom plate arranged at one end of the placing frame and a push cylinder arranged on the bottom plate, a bracket is arranged along the length direction of the slide rail, and a piston rod of the push cylinder moves along the length direction of the slide rail; the fixed assembly comprises two moving blocks arranged on the workbench and two driving cylinders for driving the moving blocks to move, and the moving blocks are positioned on two sides of the pipeline to be bent and move relatively; the pipe bending assembly comprises a rotating table arranged on a workbench, a fixed block arranged on the rotating table and a pressing block arranged corresponding to the fixed block, wherein a rotating cylinder is arranged on the workbench and fixedly connected with the rotating table, a pressing cylinder is arranged on the rotating table, a telescopic rod of the pressing cylinder is fixedly connected with the pressing block, and a pressing arc groove is formed in the side surface of the fixed block opposite to the pressing block; the bottom end of the placing frame is connected with the sliding rail in a sliding mode.

Through adopting above-mentioned technical scheme, the return bend is placed on the rack, promote the pipeline that the cylinder will wait to bend and pass to return bend subassembly department, can adjust the position of rack on the workstation simultaneously, the work of the return bend that has reached to be suitable for different length size, the rack can be placed the pipe fitting of waiting to bend of different diameter sizes, fixed subassembly comprises the movable block, also can be suitable for the pipe fitting of waiting to bend of different diameter sizes, the last arc groove that compresses tightly of return bend subassembly can be with the pipe fitting laminating of waiting to bend of different diameter sizes equally, the final pipe bending work of accomplishing, thereby have the work of bending that adapts to the tubular product of different models, the advantage of improvement work efficiency.

Optionally, a placing block is arranged at the bottom end of the placing frame, the placing block is connected with the sliding rail in a sliding mode, and a hydraulic cylinder is arranged between the placing block and the placing frame.

Through adopting above-mentioned technical scheme, place the piece and drive the rack telemechanical to adapt to the return bend work of different length size, the return bend of different diameter sizes is placed on the rack, need keep the return bend axis to be in the level, and the pneumatic cylinder can drive the vertical direction of rack and adjust, is favorable to adjusting the axis position of return bend between rack and the return bend subassembly.

Optionally, a locking bolt is vertically arranged on the placing block and penetrates through the surface of the placing block to abut against the workbench.

Through adopting above-mentioned technical scheme, set up the locking bolt on placing the piece, when the rack removed relevant position, let the bolt contradict with table surface to reduce the removal of rack.

Optionally, the placing frame is arranged in a V shape.

Through adopting above-mentioned technical scheme, adopt the rack of V-arrangement, the pipe fitting can be along the lateral wall landing of V-arrangement rack to use the V-arrangement rack can adapt to different radial pipe fittings.

Optionally, the surface of the placing frame is provided with a friction reducing layer.

Through adopting above-mentioned technical scheme, set up the antifriction layer on the rack surface, can reduce the resistance when sending a tub to can prevent that the rack lateral wall from rubbing the floral tube face.

Optionally, the surfaces of the pressing arc grooves are provided with elastic layers.

Through adopting above-mentioned technical scheme, being equipped with the elastic layer on the arc groove surface of step-up, the elastic layer plays the guard action to the surface of return bend, and the elastic layer is favorable to increasing the frictional force that compresses tightly arc groove and return bend surface simultaneously, is favorable to improving the tight work of clamp to the return bend.

Optionally, two sliding rails are arranged in the width direction of the placing block.

Through adopting above-mentioned technical scheme, use two slide rails, strengthened the stability of rack.

Optionally, the surface of the moving block is provided with an anti-slip layer.

By adopting the technical scheme, the friction force between the surface of the moving block and the bent pipe is improved, and the situation that the bent pipe is pulled to generate displacement when the bent pipe is bent is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the placing frame is arranged in the push pipe assembly to adapt to pipe fittings with different pipe diameters;

2. the hydraulic cylinder is arranged in the pipe pushing assembly, and the height of the placing frame is adjusted, so that the central shafts of the pipe fittings with different pipe diameters are aligned to the pipe bending assembly;

3. through set up at push tube subassembly lower extreme and slide rail sliding connection place the piece to can adapt to the pipe fitting of different length, adjust the distance of pipe fitting and return bend subassembly.

Drawings

Fig. 1 is a schematic structural view of a pipe bender.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a partial schematic view of a bender.

Fig. 4 is a side view of the bender.

Description of reference numerals: 1. a work table; 11. a slide rail; 2. a push tube assembly; 21. placing a rack; 22. a base plate; 23. a push cylinder; 24. placing the blocks; 25. a hydraulic cylinder; 26. locking the bolt; 27. an anti-friction layer; 3. a fixing assembly; 31. a moving block; 32. a driving cylinder; 33. an anti-slip layer; 4. a tube bending assembly; 41. a rotating table; 42. a fixed block; 43. a compression block; 44. a rotating cylinder; 45. a pressing cylinder; 46. a telescopic rod; 47. pressing the arc groove; 48. an elastic layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses bending machine. Referring to fig. 1, the pipe bender includes a table 1, a pipe pushing assembly 2, a fixing assembly 3, and a pipe bending assembly 4. The push pipe component 2, the fixing component 3 and the bent pipe component 4 are sequentially arranged.

Referring to fig. 1 and 2, the ejector sleeve component 2 includes a placing frame 21, a bottom plate 22 arranged on one side of the placing frame 21 away from the fixing component 3, and a pushing cylinder 23 arranged on the bottom plate 22, the placing frame 21 is V-shaped, the placing frame 21 can be suitable for placing pipes of different pipe diameters, and the pipes can slide down to the bottom of the V-shaped placing frame 21 along the side wall of the placing frame 21.

Referring to fig. 1 and 2, the piston rod of the pushing cylinder 23 moves along the length direction of the placing frame 21, the pipe fitting is pushed to the pipe bending assembly 4 through the pushing cylinder 23, the anti-friction layer 27 is arranged on the inner surface of the V-shaped placing frame 21, the anti-friction layer 27 can be made of polytetrafluoroethylene, the anti-friction layer 27 has the effect of reducing friction between the pipe fitting and the placing frame 21 when the pipe fitting is pushed, and abrasion to the pipe fitting can be reduced.

Referring to fig. 1 and 2, a placing block 24 is arranged at the bottom end of a placing frame 21, a hydraulic cylinder 25 is arranged between the placing frame 21 and the placing block 24, the placing frame 21 is driven by the hydraulic cylinder 25 to move up and down, and for pipes with different pipe diameters, a central shaft of the pipe needs to be adjusted to correspond to a clamping part of a pipe bending assembly, so that the pipe bending accuracy is improved; set up slide rail 11 on workstation 1, the bottom of placing piece 24 is equipped with the spout, slide rail 11 and spout sliding fit for place piece 24 and with slide rail 11 sliding connection, when carrying out the return bend to different length pipe fittings, can adjust the distance of push tube subassembly 2 and return bend subassembly 4, make the pipe fitting can the propelling movement to carry out the position of return bend.

Referring to fig. 2, vertically being equipped with locking bolt 26 on placing block 24, locking bolt 26 runs through and places block 24 and contradict with the surface of workstation 1, screws up locking bolt 26 and locks, and locking bolt 26 contradicts to workstation 1 surface, makes rack 21 more stable.

Referring to fig. 1 and 3, the fixing assembly 3 is disposed near the pipe bending assembly 4, the fixing assembly 3 includes a moving block 31 and a driving cylinder 32 connected with the moving block 31 into a whole, the driving cylinder 32 is fixedly connected with the workbench 1, and the moving block 31 moves on the workbench 1 toward the pipe to be bent. The driving cylinder 32 drives the moving block 31 to move, the two sets of moving blocks 31 and the driving cylinder 32 are connected into a whole, the two sets of moving blocks 31 and the driving cylinder 32 are arranged on two sides of the placing frame 21, the two moving blocks 31 are correspondingly arranged, the two moving blocks 32 move relative to each other under the driving of the driving cylinder 32 relative to each other, namely, one moving block 32 moves towards the other moving block 32, and therefore the pipe fitting is clamped and fixed. The two moving blocks 32 are provided with anti-slip layers 33 on corresponding surfaces, when the pipe fittings are clamped, the anti-slip layers 33 increase friction force with the pipe fittings, and the pipe fittings in the fixing device 3 are prevented from shifting when the pipe fittings are bent, so that a poor pipe bending effect is caused.

Referring to fig. 3 and 4, the elbow assembly 4 includes a rotary table 41 arranged on the workbench, a fixing block 42 is arranged on one side of the rotary table 41 far away from the fixing assembly 3, a clamping block 43 correspondingly arranged with the fixing block 42 is connected below the rotary table 41, the rotary cylinder 44 drives the rotary table 41 to rotate, the fixing block 42 is matched with the clamping block 43 for use, the clamping block 43 is far away from one side of the fixing block 42 to be provided with a pressing cylinder 45, the pressing cylinder 45 is fixedly connected with the rotary table 41, a piston rod of the pressing cylinder 45 is fixedly connected with the pressing block 43, and therefore the clamping function is achieved.

Referring to fig. 3 and 4, the corresponding face of clamp block 43 and fixed block 42 is provided with along the pipe fitting direction and compresses tightly arc groove 47, it can grasp the pipe fitting that needs the return bend to compress tightly arc groove 47, reduce rocking of pipe fitting in return bend subassembly 4, be provided with elastic layer 48 on the surface that compresses tightly arc groove 47, elastic layer 48 generally constitutes for the rubber layer, elastic layer 48 laminates on the pipe fitting surface, play certain guard action to the pipe fitting surface when the return bend, elastic layer 48 has increased the frictional force that compresses tightly arc groove 47 and pipe fitting, make the pipe fitting can not take place the displacement when the return bend.

The specific implementation principle is as follows: during pipe bending, firstly, a pipe fitting to be bent is placed on the placing frame 21, the position of the placing frame 21 on the workbench 1 is adjusted according to the length and the diameter size of the pipe fitting to be bent, so that the pipe fitting on the placing frame 21 can be stably clamped by the fixing assembly 3 and the pipe bending assembly 4, the pipe bending assembly 4 sent by the pushing cylinder 23 is clamped by the two moving blocks 31 of the fixing assembly 3, the fixing block 42 and the clamping block 43 clamp the pipe fitting tightly, the rotating cylinder 44 drives the rotating table 41 to rotate, the pipe fitting is bent along the side part of the rotating table 41, and finally pipe bending is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pipe bender comprises a workbench (1), wherein a pipe pushing assembly (2), a fixing assembly (3) and a pipe bending assembly (4) are arranged on the upper side of the workbench (1),

the method is characterized in that: the surface of the workbench (1) is provided with a sliding rail (11), the push pipe assembly (2) comprises a placing frame (21), a bottom plate (22) arranged at one end of the placing frame (21) and a push cylinder (23) arranged on the bottom plate (22), the placing frame (21) is arranged along the length direction of the sliding rail (11), and a piston rod of the push cylinder (23) moves along the length direction of the sliding rail (11);

the fixed assembly (3) comprises a moving block (31) arranged on the workbench (1) and two driving cylinders (32) for driving the moving block (31) to move, and the moving blocks (31) are positioned on two sides of the pipeline to be bent and move relatively;

the pipe bending assembly (4) comprises a rotating table (41) arranged on the workbench (1), a fixed block (42) arranged on the rotating table (41), and a pressing block (43) arranged corresponding to the fixed block (42), wherein a rotating cylinder (44) is arranged on the workbench (1), the rotating cylinder (44) is fixedly connected with the rotating table (41), a pressing cylinder (45) is arranged on the rotating table (41), an expansion link (46) of the pressing cylinder (45) is fixedly connected with the pressing block (43), and a pressing arc groove (47) is arranged on the side surface of the fixed block (42) opposite to the pressing block (43);

the bottom end of the placing rack (21) is connected with the sliding rail (11) in a sliding mode.

2. The bender according to claim 1, wherein: the bottom of rack (21) is equipped with places piece (24), place piece (24) and slide rail (11) sliding connection, it is equipped with pneumatic cylinder (25) to place between piece (24) and rack (21).

3. The bender according to claim 2, wherein: the vertical locking bolt (26) that is equipped with on placing piece (24), locking bolt (26) run through and place piece (24) and contradict with the surface of workstation (1).

4. The bender according to claim 1, wherein: the placing rack (21) is arranged in a V shape.

5. The bender according to claim 4, wherein: and an anti-friction layer (27) is arranged on the surface of the placing frame (21).

6. The bender according to claim 5, wherein: elastic layers (48) are arranged on the surfaces of the pressing arc grooves (47).

7. The bender according to claim 2, wherein: the slide rail (11) is provided with two slide rails in the width direction of the placing block (24).

8. The bender according to claim 6, wherein: the surface of the moving block (31) is provided with an anti-skid layer (33).