CN112517697A

CN112517697A - Hydraulic pipe bending machine and using method thereof

Info

Publication number: CN112517697A
Application number: CN202011129073.2A
Authority: CN
Inventors: 杨志伟; 祝晓东; 王晓; 李岩; 方红卫; 郑亚生; 俞晨曦; 胡志刚
Original assignee: Zhejiang Zhonggong Petrochemical Equipment Co ltd
Current assignee: Zhejiang Zhonggong Petrochemical Equipment Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-03-19

Abstract

The invention discloses a hydraulic pipe bender and a use method thereof, belonging to the technical field of pipe processing equipment, wherein the hydraulic pipe bender comprises: the clamping mechanism comprises a first clamping mechanism and a second clamping mechanism, and the first clamping mechanism is formed at the left side position of the upper surface of the workbench; the pushing mechanism is formed on one side of the first clamping mechanism; the bending mechanism is formed on one side of the output end of the first clamping mechanism, the bending mechanism and the first clamping mechanism are positioned on the same horizontal line, the second clamping mechanism is arranged on one side of the input end of the bending mechanism, and the clamping mechanism and the bending mechanism both adopt movable fasteners, so that the bending mechanism is suitable for bending various steel pipes, and the practicability is greatly improved.

Description

Hydraulic pipe bending machine and using method thereof

Technical Field

The invention belongs to the field of pipe processing equipment, and particularly relates to a hydraulic pipe bending machine and a using method thereof.

Background

With the rapid development of economy in China, the bent pipe is more and more widely applied to the fields of electric power construction, road and bridge construction, oil and gas transmission and the like. For occasions needing piping in many small and medium-sized enterprises or large enterprises, such as pressure oil pipes on engineering machinery, hydraulic pipelines of machine tool factories, oil pipes of engines, bent pipes of fitness equipment and the like, a fully functional pipe bender is probably not needed, the difficulty of processing the pipe fittings is not high, the series of pipe benders are accepted by users and can meet the use requirements, the mechanical structure of the pipe bender needs to be designed to be simple, the number of control elements is small, and the price is easily accepted by the users. In the prior art, a manual pipe bender is used for manually bending and forming a pipe, the implementation object is nearly limited to a thin-wall pipe, and for a pipe with a larger wall thickness, the problems that the wall of the bent pipe is wrinkled due to uneven bending force and speed and the thickness is uneven due to uneven stress on the wall are easy to occur.

Disclosure of Invention

The present invention is directed to a hydraulic pipe bending machine and a method for using the same to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic pipe bender, comprising: the clamping mechanism, the pushing mechanism and the bending mechanism are all fixedly mounted on the workbench.

Wherein fixture includes first fixture and second fixture, first fixture shaping in the upper surface left side position of workstation.

The pushing mechanism is formed on one side of the first clamping mechanism.

The bending mechanism is formed on one side of the output end of the first clamping mechanism, the bending mechanism and the first clamping mechanism are located on the same horizontal line, and one side of the input end of the bending mechanism is arranged on the second clamping mechanism.

Preferably, the workstation includes rectangular frame, rectangular frame upper surface welding has the aluminium frid, four corners of rectangular frame lower surface are provided with the supporting leg perpendicularly, four be provided with the bottom plate between the supporting leg, be provided with the backup pad between the supporting leg, the hoof foot is installed through the bolt to the supporting leg lower surface, the hoof foot lower surface is provided with anti-skidding rubber pad, and the anti-skidding rubber pad of setting can prevent the influence that equipment caused because the vibrations that the during operation produced are to the pipe bending.

Preferably, first fixture includes the support column, second fixture includes the type of falling L support frame, the fixed plate is all installed with the tip of the type of falling L support frame to the support column, equal movable mounting has the fastener on the fixed plate, through first fixture with the cooperation of second fixture plays the effect of bearing to tubular product.

Preferably, the fixed plate top is opened there is the bar groove, the fastener is U type opening form, fixed through fastening bolt between fixed plate and the fastener, the movable fastener that sets up can carry out the centre gripping to multiple pipe fitting, has improved the practicality.

Preferably, the pushing mechanism comprises a door-shaped supporting frame, a cylinder seat is mounted on the door-shaped supporting frame, a pushing cylinder is mounted on the cylinder seat through a bolt, a rack is fixedly connected to the movable end of the pushing cylinder, a tooth opening in the rack faces inwards, the rack is arranged in a limiting frame in a sliding mode, the limiting frame is arranged to prevent the rack from shifting in the process of pushing the rack by the pushing cylinder, and the accuracy of rack movement is guaranteed.

Preferably, the limiting frame comprises a C-shaped limiting seat, a mounting plate is arranged on the back of the C-shaped limiting seat, and the mounting plate is fixedly connected with the limiting frame through a bolt.

Preferably, the bending mechanism comprises a first guide pillar and a second guide pillar, a main moving die is arranged at the top of the first guide pillar, a secondary moving die is arranged at the top of the second guide pillar, a die cavity for containing the steel pipe is formed between the main die and the driven die, a gear is coaxially arranged below the main die, the gear is meshed with the rack, a square limit plate is arranged on the lower end face of the second guide pillar, the inner side of the square limit plate is provided with a baffle plate, the square limit plate is provided with a sliding chute, the second guide pillar is arranged in the sliding chute in a sliding way, and is fastened by a bolt, a supporting piece is coaxially arranged on the first guide post, a bent rod is coaxially arranged at the bottom of the first guide post, the bottom of the bent rod is connected with a motor, the driving die drives the pipe to be inserted into the die cavity, and the driving die rotates by means of mutual meshing of the rack and the gear, so that the trouble of manual rotation is eliminated.

Preferably, support piece includes U type backup pad, there is the backplate U type backup pad back through bolt fixed mounting, the backplate lower surface is provided with the base, the base passes through bolt and aluminium frid fixed connection, the knee includes cyclic annular connector, cyclic annular connector and the coaxial setting of first guide pillar, the cyclic annular connector outside is provided with L type guide arm, L type guide arm top is provided with the arc wall, and the support of setting can prevent that the mechanism of buckling from taking place the displacement when the return bend operation.

Preferably, the square flange plate is installed on the lower bottom surface of fixture, pushing mechanism and bending mechanism, the square flange plate passes through bolt and aluminium cell board fixed connection, uses the square flange plate to pass through bolt and aluminium cell board fixed connection, makes equipment more firm.

A use method of a hydraulic pipe bending machine comprises the following steps:

the method comprises the following steps: the pipe is inserted into the fastener, the position of the fastener is adjusted through the strip-shaped groove on the fixing plate, and the fastening bolt is screwed down to achieve the effect of clamping the pipe;

step two: the pipe enters the die cavity through the fastener, a rack arranged at the movable end of the pushing cylinder is meshed with the gear, the pushing cylinder is started, the rack leads the gear to move, and the gear leads the pipe to move forwards;

step three: the motor drives the bent rod to rotate, and the arc-shaped groove at the top of the bent rod bends the pipe under the action of the motor.

The invention has the beneficial effects that:

(1) utilize fixture to carry out the centre gripping to tubular product while, it is rotatory with the tubular product restriction in the die cavity to impel the cylinder to pass through rack and gear drive active mould, bending mechanism restricts the part that the tubular product waited to bend through the die cavity between active mould and the driven mould, the motor drives the knee and rotates, the arc wall at knee top promotes tubular product, the part that waited to bend that is restricted tubular product in the die cavity is buckled to certain angle, accomplish the operation of buckling of tubular product promptly, whole process automation degree is higher relatively, and the operation of artifical buckling has been saved, great improvement buckle quality and efficiency of buckling.

(2) Because the clamping mechanism and the bending mechanism both adopt movable fasteners, the invention is suitable for bending various steel pipes, and the practicability is greatly improved.

(3) The clamping mechanism can be adjusted according to the diameter of the pipe, the pipe is clamped, the pushing mechanism is arranged on one side of the clamping mechanism, in order to push the pipe into the bending mechanism, the pushing mechanism is meshed with a gear in the bending mechanism through a rack at the movable end of the pushing cylinder, the gear rotates to drive the driving die to rotate, the driving die drives the pipe to be inserted into the die cavity, and the trouble of manual insertion is omitted.

Drawings

FIG. 1 is a schematic left-view perspective view of the present invention;

FIG. 2 is a schematic diagram of a right-side perspective view of the present invention;

FIG. 3 is a schematic view of the pushing mechanism of the present invention;

FIG. 4 is a schematic structural diagram of a bending mechanism according to the present invention;

fig. 5 is a schematic structural view of a fixing plate according to the present invention.

In the figure: 1. a work table; 11. a rectangular frame; 12. supporting legs; 13. a base plate; 14. a support plate; 15. a hoof; 16. an anti-skid rubber pad; 2. a clamping mechanism; 21. a first clamping mechanism; 211. a support pillar; 212. a fixing plate; 2121. a strip-shaped groove; 213. a fastener; 22. a second clamping mechanism; 221. an inverted L-shaped support frame; 3. a pushing mechanism; 31. a door-shaped support frame; 32. a cylinder block; 33. a push cylinder; 34. a rack; 35. a limiting frame; 351. a C-shaped limiting seat; 352. mounting a plate; 4. a bending mechanism; 41. a first guide post; 411. a main moving die; 42. a second guide post; 421. a slave moving die; 43. a mold cavity; 44. a gear; 45. a square limit plate; 451. a baffle plate; 452. a chute; 46. a support member; 461. a U-shaped support plate; 462. a back plate; 47. bending a rod; 471. an annular connector; 472. an L-shaped guide rod; 473. an arc-shaped slot; 48. a base; 5. a square flange plate; 6. an aluminum channel plate; 7. an electric motor.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-5, a hydraulic pipe bender includes: the workbench 1, the clamping mechanism 2, the pushing mechanism 3 and the bending mechanism 4 are formed in four parts, and the clamping mechanism 2, the pushing mechanism 3 and the bending mechanism 4 are all fixedly arranged on the workbench 1.

The clamping mechanism 2 comprises a first clamping mechanism 21 and a second clamping mechanism 22, and the first clamping mechanism 21 is formed at the left position of the upper surface of the workbench 1.

The pushing mechanism 3 is formed on one side of the first clamping mechanism 21.

The bending mechanism 4 is formed at one side of the output end of the first clamping mechanism 21, the bending mechanism 4 and the first clamping mechanism 21 are positioned on the same horizontal line, and one side of the input end of the bending mechanism 4 is arranged on the second clamping mechanism 22.

In a further embodiment, the workbench 1 is used for supporting and fixing the clamping mechanism 2, the pushing mechanism 3 and the bending mechanism 4, and the clamping mechanism 2 is used for supporting and fixing the pipe; the pushing mechanism 3 is used for pushing the pipe to enter the bending mechanism 4 from the clamping mechanism 2; the bending mechanism 4 is used for bending the pipe.

Specifically, referring to fig. 1, the workbench 1 includes a rectangular frame 11, an aluminum groove plate 6 is welded on the upper surface of the rectangular frame 11, supporting legs 12 are vertically arranged at four corners of the lower surface of the rectangular frame 11, a bottom plate 13 is arranged between the four supporting legs 12, a supporting plate 14 is arranged between the supporting legs 12, shoe feet 15 are arranged on the lower surfaces of the supporting legs 12 through bolts, and anti-skid rubber pads 16 are arranged on the lower surfaces of the shoe feet 15.

In a further embodiment, in order to fix fixture 2, pushing mechanism 3 and bending mechanism 4, be provided with aluminium frid 6 on rectangular frame 11, aluminium frid 6 plays to bear fixture 2, pushing mechanism 3 and bending mechanism 4's effect, in order to prevent that equipment from handling the influence that causes because the vibrations that the during operation produced the return bend, at supporting leg 12 surface mounting's hoof foot 15, play the effect of stabilising arrangement, the anti-skidding rubber pad 16 of hoof foot 15 lower surface setting has strengthened equipment and ground friction and has played skid-proof effect.

Specifically, referring to fig. 2, the first clamping mechanism 21 includes a supporting column 211, the second clamping mechanism 22 includes an inverted L-shaped supporting frame 221, fixing plates 212 are respectively mounted at ends of the supporting column 211 and the inverted L-shaped supporting frame 221, and a fastening member 213 is movably mounted on each fixing plate 212.

In a further embodiment, in order to prevent the end of the pipe from falling due to its own weight and being inserted into the bending mechanism 4 inaccurately, the first clamping mechanism 21 and the second clamping mechanism 22 are adjusted to be arranged on the same horizontal line at intervals, and the interval between the first clamping mechanism 21 and the second clamping mechanism 22 is increased, so that the pipe with a longer length can be supported, and the pipes with different lengths can be supported conveniently.

Specifically, referring to fig. 5, a strip-shaped groove 2121 is formed above the fixing plate 212, the fastening member 213 is U-shaped and open, and the fixing plate 212 and the fastening member 213 are fixed by fastening bolts.

In a further embodiment, in order to fasten pipes with different diameters, the sliding distance of the fastening member 213 in the strip-shaped groove 2121 is adjusted to facilitate limiting the pipes with different pipe diameters, so that the pipe fastening device can be adapted to processing pipes with different models.

Specifically, referring to fig. 3, the pushing mechanism 3 includes a door-shaped support frame 31, a cylinder seat 32 is mounted on the door-shaped support frame 31, a pushing cylinder 33 is mounted on the cylinder seat 32 through a bolt, a movable end of the pushing cylinder 33 is fixedly connected with a rack 34, a tooth opening in the rack 34 is inward, and the rack 34 is slidably disposed in a limiting frame 35.

In a further embodiment, in order to enable the pipe to enter the bending mechanism 4 from the clamping mechanism 2, the rack 34 arranged at the movable end of the pushing cylinder 33 is meshed with the bending mechanism 4, the pushing cylinder 33 is started, and the movable end of the pushing cylinder 33 can push the rack 34 to do linear reciprocating motion, so that the pipe can be driven to enter the bending mechanism 4 to be bent.

Specifically, referring to fig. 5, the limiting frame 35 includes a C-shaped limiting seat 351, a mounting plate 352 is disposed on the back of the C-shaped limiting seat 351, and the mounting plate 352 is fixedly connected to the limiting frame 35 through a bolt.

In a further embodiment, the rack 34 is embedded in the corresponding C-shaped limiting seat 351, so that the rack 34 can only move along the C-shaped limiting seat 351, the rack 34 is prevented from shifting in the process of pushing the rack 34 by the pushing cylinder 33, the movement accuracy of the rack 34 is ensured, and the quality of the bent pipe is improved.

Specifically, referring to fig. 4, the bending mechanism 4 includes a first guide pillar 41 and a second guide pillar 42, a driving die 411 is disposed on the top of the first guide pillar 41, a driven die 421 is disposed on the top of the second guide pillar 42, a die cavity 43 for accommodating a steel pipe is formed between the driving die 411 and the driven die 421, a gear 44 is coaxially disposed below the driving die 411, the gear 44 is engaged with the rack 34, a square limit plate 45 is disposed on the lower end surface of the second guide pillar 42, a baffle 451 is disposed on the inner side of the square limit plate 45, a sliding groove 452 is formed in the square limit plate 45, the second guide pillar 42 is slidably disposed in the sliding groove 452 and fastened by a bolt, a support 46 is coaxially disposed on the first guide pillar 41, a bent rod 47 is coaxially disposed at the bottom of the first guide pillar 41, and a motor 7.

In a further embodiment, the rack 34 in the pushing mechanism 3 drives the gear 44 to rotate under the action of the pushing cylinder 33, the gear 44 drives the active mold 411 to rotate, the active mold 411 drives the pipe to be inserted into the mold cavity 43, and the rotation of the active mold 411 is realized by means of the mutual engagement of the rack 34 and the gear 44, so that the trouble of manual rotation is eliminated, and the pipe bending efficiency is improved.

Specifically, referring to fig. 4, the supporting member 46 includes a U-shaped supporting plate 461, a back plate 462 is fixedly mounted on the back of the U-shaped supporting plate 461 through a bolt, a base 48 is disposed on the lower surface of the back plate 462, the base 48 is fixedly connected to the aluminum chute 6 through a bolt, the curved bar 47 includes an annular connector 471, the annular connector 471 is coaxially disposed with the first guide post 41, an L-shaped guide rod 472 is disposed on the outer side of the annular connector 471, and an arc-shaped slot 473 is disposed at the top of the L-shaped guide rod 472.

In a further embodiment, in order to prevent the bending mechanism 4 from displacing during the pipe bending operation, the supporting member 46 is fixedly connected to the aluminum groove plate 6 through the base 48, during the pipe bending operation, the bending rod 47 pushes the pipe through the arc groove 473 at the top of the bending rod 47 under the action of the motor 7, and the die cavity 43 will clamp the pipe and bend the pipe to a certain angle, thereby completing the pipe bending operation.

Specifically, referring to fig. 1, the clamping mechanism 2, the pushing mechanism 3 and the bending mechanism 4 are all provided with a square flange 5 at their lower bottom surfaces, and the square flange 5 is fixedly connected with an aluminum channel plate 6 by bolts.

In a further embodiment, in order to fix the clamping mechanism 2, the pushing mechanism 3 and the bending mechanism 4, the square flange 5 is fixedly connected with the aluminum groove plate 6 through bolts, so that the equipment is firmer.

A use method of a hydraulic pipe bending machine comprises the following steps:

the method comprises the following steps: the pipe is inserted into the fastening pieces 213 of the first clamping mechanism 21 and the second clamping mechanism 22, the position of the fastening piece 213 is adjusted through the strip-shaped groove 2121 on the fixing plate 212, and the fastening bolt is screwed down to achieve the effect of clamping the pipe;

step two: the pipe enters the die cavity 43 through the fastener 213, the rack 34 arranged at the movable end of the pushing cylinder 33 is meshed with the gear 44, the pushing cylinder 33 is started, the movable end of the pushing cylinder 33 can push the rack 34 to do linear reciprocating motion, and the rack 34 can drive the gear 44 to rotate;

step three: the motor 7 drives the bending rod 47 to rotate, the arc-shaped groove 473 at the top of the bending rod 47 pushes the pipe, and the pipe is clamped by the die cavity 43 and bent to a certain angle, so that the bending operation of the pipe is completed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A hydraulic pipe bending machine, comprising:

a table (1);

the clamping mechanism (2) comprises a first clamping mechanism (21) and a second clamping mechanism (22), and the first clamping mechanism (21) is formed at the left side position of the upper surface of the workbench (1);

the pushing mechanism (3) is formed on one side of the first clamping mechanism (21);

the bending mechanism (4) is formed on one side of the output end of the first clamping mechanism (21), the bending mechanism (4) and the first clamping mechanism (21) are located on the same horizontal line, and one side of the input end of the bending mechanism (4) is arranged on the second clamping mechanism (22).

2. A hydraulic pipe bender as claimed in claim 1, wherein: workstation (1) includes rectangular frame (11), surface welding has aluminium frid (6) on rectangular frame (11), four corners of rectangular frame (11) lower surface are provided with supporting leg (12) perpendicularly, four be provided with bottom plate (13) between supporting leg (12), be provided with backup pad (14) between supporting leg (12), hoof foot (15) are installed through the bolt to supporting leg (12) lower surface, hoof foot (15) lower surface is provided with anti-skidding rubber pad (16).

3. A hydraulic pipe bender as claimed in claim 1, wherein: first fixture (21) is including support column (211), second fixture (22) is including falling L type support frame (221), fixed plate (212) are all installed with the tip of falling L type support frame (221) in support column (211), equal movable mounting has fastener (213) on fixed plate (212).

4. A hydraulic pipe bender as claimed in claim 3, wherein: a strip-shaped groove (2121) is formed in the upper portion of the fixing plate (212), the fastening piece (213) is in a U-shaped opening shape, and the fixing plate (212) and the fastening piece (213) are fixed through a fastening bolt.

5. A hydraulic pipe bender as claimed in claim 4, wherein: the pushing mechanism (3) comprises a door-shaped supporting frame (31), a cylinder seat (32) is installed on the door-shaped supporting frame (31), a pushing cylinder (33) is installed on the cylinder seat (32) through a bolt, a rack (34) is fixedly connected to the movable end of the pushing cylinder (33), a tooth opening in the rack (34) is inward, and the rack (34) is arranged in a limiting frame (35) in a sliding mode.

6. A hydraulic pipe bender as claimed in claim 5, wherein: spacing (35) are including spacing seat of C type (351), spacing seat of C type (351) back is provided with mounting panel (352), mounting panel (352) pass through bolt and spacing (35) fixed connection.

7. A hydraulic pipe bender as claimed in claim 5, wherein: the bending mechanism (4) comprises a first guide pillar (41) and a second guide pillar (42), a driving die (411) is arranged at the top of the first guide pillar (41), a driven die (421) is arranged at the top of the second guide pillar (42), a die cavity (43) for accommodating a steel pipe is formed between the driving die (411) and the driven die (421), a gear (44) is coaxially arranged below the driving die (411), the gear (44) is meshed with a rack (34), a square limiting plate (45) is arranged on the lower end face of the second guide pillar (42), a baffle (451) is arranged on the inner side of the square limiting plate (45), a sliding groove (452) is formed in the square limiting plate (45), the second guide pillar (42) is slidably arranged in the sliding groove (452) and fastened through a bolt, a supporting piece (46) is coaxially arranged on the first guide pillar (41), a bent rod (47) is coaxially arranged at the bottom of the first guide pillar (41), the bottom of the bent rod (47) is connected with a motor (7).

8. A hydraulic pipe bender as claimed in claim 7, wherein: the support piece (46) comprises a U-shaped support plate (461), a back plate (462) is fixedly mounted on the back of the U-shaped support plate (461) through a bolt, a base (48) is arranged on the lower surface of the back plate (462), the base (48) is fixedly connected with an aluminum groove plate (6) through a bolt, the bent rod (47) comprises an annular connector (471), the annular connector (471) is coaxially arranged with a first guide pillar (41), an L-shaped guide rod (472) is arranged on the outer side of the annular connector (471), and an arc-shaped groove (473) is arranged at the top of the L-shaped guide rod (472).

9. A hydraulic pipe bender as claimed in claim 7, wherein: the lower bottom surfaces of the clamping mechanism (2), the pushing mechanism (3) and the bending mechanism (4) are provided with square flange plates (5), and the square flange plates (5) are fixedly connected with the aluminum groove plates (6) through bolts.

10. A method for using a hydraulic pipe bender, which is realized based on the hydraulic pipe bender of any one of claims 1-9, and is characterized in that the method comprises the following steps:

the method comprises the following steps: the pipe is inserted into the fastener (213), the position of the fastener (213) is adjusted through the strip-shaped groove (2121) on the fixing plate (212), and the fastening bolt is screwed down to achieve the effect of clamping the pipe;

step two: the pipe enters the die cavity (43) through the fastener (213), the rack (34) arranged at the movable end of the pushing cylinder (33) is meshed with the gear (44) to be connected, the pushing cylinder (33) is started, the rack (34) leads the gear (44) to move, and the gear (44) leads the pipe to advance;

step three: the motor (7) drives the bent rod (47) to rotate, and the die cavity (43) of the arc-shaped groove (473) at the top of the bent rod (47) can clamp the pipe and bend the pipe to a certain angle, so that the bending operation of the pipe is completed.