CN206810921U - A kind of hydraulic pipe bender - Google Patents

Abstract

The utility model discloses a hydraulic pipe bending machine, which comprises a machine table, on which a clamping part for clamping a steel pipe is fixed, on which a bending part is rotatably arranged, and the bending part It includes a driving mold and a driven mold, a mold cavity is formed between the driving mold and the driven mold, and an oil cylinder 2 is fixed inside the machine, the clamping part includes a clamping mold 1 and a clamping mold 2, the The machine table and the turntable are respectively equipped with a positioning mechanism, the positioning mechanism includes a sliding plate, and the sliding plate is fixedly connected with an oil cylinder 1, a gear is arranged in the machine table, and a rack is correspondingly provided in the machine table. One end of said rack is fixedly connected with oil cylinder two. The utility model provides a hydraulic pipe bending machine which is suitable for bending a steel pipe with a large section size, has good bending quality and high efficiency.

Description

A hydraulic pipe bending machine

technical field

The utility model relates to a steel pipe processing equipment, in particular to a hydraulic pipe bending machine.

Background technique

Pipe benders can be roughly divided into CNC pipe benders, hydraulic pipe benders, etc., which are mainly used for laying and repairing pipes in power construction, highway and railway construction, boilers, bridges, ships, furniture, decoration, etc., with multiple functions, It has the advantages of reasonable structure and simple operation.

The utility model patent with the Chinese patent publication number CN201214114Y discloses a manual pipe bender, which includes a machine base fastened by fastening screws on the top plate, left and right side plates and bottom plate, including a pressing screw, a driving wheel, an auxiliary driving wheel, The pipe bending device including the drive shaft and the ring handle is composed of a U-shaped seat, a positioning rod and a slide guide positioning mechanism.

When using the manual pipe bender provided by the above technical solution to perform pipe bending operations, first insert the steel pipe between the capstan wheel and the auxiliary wheel, then slowly feed the pressing screw, and at the same time slowly turn the ring handle, so that the capstan wheel presses down , as the pressed steel pipe gradually moves forward, the steel pipe is then pressed into a predetermined arc; since the whole process of this scheme uses manual work, this scheme is only suitable for bending steel pipes with small cross-sectional dimensions. Steel pipes with larger cross-sectional dimensions are very strenuous for workers to operate, and the operation is extremely difficult.

Utility model content

The purpose of the utility model is to provide a hydraulic pipe bending machine, which greatly reduces the operation difficulty of bending a steel pipe with a large section size by using the clamping part and the bending part respectively arranged on the machine table and the turntable.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a hydraulic pipe bending machine, including a machine table, a clamping part for clamping a steel pipe is fixed on the machine table, and the machine table also rotates A bending part is provided, the bending part includes a driving mold and a driven mold, a mold cavity for accommodating steel pipes is formed between the driving mold and the driven mold, and an oil cylinder 2 is fixed inside the machine, so The second oil cylinder drives the bending part to rotate synchronously.

By adopting the above technical solution, during the actual bending process, the steel pipe is clamped in the clamping part and the mold cavity, and when the bending part rotates synchronously with the end of the steel pipe under the drive of the oil cylinder 2, the steel pipe is bent ;Using the characteristics of small oil cylinder body and strong force, no transmission gap and smooth movement, the difficulty of bending steel pipes with large cross-sectional dimensions is greatly reduced.

The utility model is further configured as follows: both the clamping part and the bending part are detachably connected to the machine table.

By adopting the above technical solution, considering that in the actual production process, different types of steel pipes may be processed, such as processing round pipes and square pipes separately. At this time, only one set of clamping parts and bending parts cannot process the requirements. Through The clamping part and the bending part are arranged in a detachable form, which cooperates with the spare clamping part and bending part, which is convenient for workers to bend different types of steel pipes, and improves the practicability of the utility model.

The utility model is further configured as follows: the clamping part includes clamping die 1 and clamping die 2, the bending part also includes a turntable, the turntable is connected to the machine in rotation, and the clamping die 2 and driven die are respectively connected with The machine table and the turntable are arranged in a sliding manner, and the sliding direction of the second clamping mold and the driven mold is perpendicular to the axial direction of the steel pipe, and the machine table and the turntable are respectively provided with mounting brackets for fixing the second clamping mold and the driven mold. positioning agency.

By adopting the above-mentioned technical scheme, the clamping die 2 and the driven die are respectively set by sliding with the machine table and the turntable. During the operation, the worker can change the clamping die 1 and clamping die 2 by moving the clamping die 2 and the driven die. The distance between the active mold and the driven mold is adapted to steel pipes of different cross-sectional sizes, which further improves the high practicability of the utility model.

The utility model is further configured as follows: the two positioning mechanisms both include sliding plates, and the two sliding plates are respectively arranged to slide with the turntable and the machine table, the sliding direction of the sliding plates is parallel to the length direction of the sliding plates, and The two sliding plates are fixedly connected with an oil cylinder one.

By adopting the above technical scheme, when workers need to adjust the position of clamping die 2 or driven die to adapt to steel pipes with different cross-sectional sizes during actual operation, they do not need to manually push clamping die 2 or driven die, and only need to use oil cylinder 1 Move the sliding plate to indirectly change the position of the second clamping die or the driven die, which effectively reduces the difficulty of the operation for workers.

The utility model is further configured as follows: the machine table and the turntable are provided with chute along the length direction of the corresponding sliding plate, and the two sliding plates are respectively embedded in the corresponding chute.

By adopting the above technical solution, the sliding plate is embedded in the corresponding chute, so that the sliding plate can only move along the chute, avoiding the sliding plate offset when the oil cylinder pushes the sliding plate, and ensuring the movement of the sliding plate the accuracy.

The utility model is further configured as follows: a gear is provided in the machine table, and the gear is fixedly connected with the turntable coaxially, and a rack is correspondingly provided in the machine table, and the end of the rack far away from the bending part is fixedly connected Oil cylinder two.

By adopting the above technical scheme, in the actual operation process, the workers can use the oil cylinder 2 to drive the linear displacement of the rack, and realize the rotation of the turntable by means of the mutual meshing of the rack and the gear, which saves the trouble of manpower turning the turntable, greatly improving The bending difficulty of large-size steel pipes is reduced.

The utility model is further configured as follows: the machine platform is also provided with a mandrel, the end of the mandrel far away from the bending part is fixedly connected with the machine table, and the end of the mandrel close to the bending part is placed in the mold cavity.

By adopting the above technical scheme, before bending the steel pipe, workers need to put the steel pipe on the mandrel, and the mandrel can support the part of the steel pipe that does not need to be bent during the bending process of the steel pipe, avoiding the bending process of the steel pipe. Excessive bending deformation occurs on the part that does not need to be bent.

The utility model is further configured as: the mandrel is soft.

By adopting the above technical scheme, the mandrel is set to be soft, so that during the bending process of the steel pipe, the mandrel can be bent synchronously with the steel pipe, and at the same time, after the steel pipe is bent, the mandrel can be restored to its original state, avoiding frequent replacement The waste caused by the heart stick.

In summary, the utility model has the following beneficial effects:

1. While using the clamping part to clamp the steel pipe, the bending part restricts the end of the steel pipe to be bent through the cavity between the driving die and the driven die, and the oil cylinder drives the turntable to rotate through the rack and gear. The steel pipe is bent successfully, the whole process is relatively highly automated, and the manual bending operation is omitted, especially suitable for bending steel pipes with large section sizes, which greatly improves the bending quality and bending efficiency.

2. Since both the clamping part and the bending part adopt the detachable connection installation method, and cooperate with multiple spare clamping parts and bending parts, the utility model is suitable for bending various types of steel pipes, and the practicability is greatly improved improve.

Description of drawings

Fig. 1 is a schematic axonometric view mainly used to reflect the overall structure of the present embodiment;

Fig. 2 is a structural schematic diagram mainly used to embody the positioning mechanism in this embodiment;

Fig. 3 is a structural schematic diagram mainly used to embody the driving mode of the oil cylinder in this embodiment;

Fig. 4 is a structural schematic diagram mainly used to embody the turntable in this embodiment;

Fig. 5 is a structural schematic diagram mainly used to embody the limiter in this embodiment;

Fig. 6 is a structural schematic diagram mainly used to embody the driving mode of the turntable in this embodiment;

FIG. 7 is a structural schematic diagram of the present embodiment mainly used to embody the rack and the oil cylinder 2. FIG.

Reference signs: 1, machine platform; 2, clamping part; 201, clamping mold one; 202, clamping mold two; 3, positioning mechanism; 301, sliding plate; 302, positioning block; 303, clamping block; 304, Brake screw; 4, chute; 5, limit block; 6, jacking bolt; 7, oil cylinder one; 8, turntable; 801, card slot; 9, limit platform; 901, block; 11, lock nut; 12, bending part; 121, driving mold; 122, driven mold; 13, gear;

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to accompanying drawing 1, a kind of hydraulic pipe bending machine comprises machine table 1, and machine table 1 is roughly cuboid shape, and one side of machine table 1 upper surface longitudinal direction is provided with clamping part 2, and clamping part 2 includes clamping part 2. The first mold 201 and the second clamping mold 202 , the first clamping mold 201 and the second clamping mold 202 are arranged along the length direction of the machine 1 , wherein the first clamping mold 201 is fixedly connected to the machine 1 by bolts.

Referring to accompanying drawings 1-2, the side of the clamping die 2 202 facing away from the clamping die 1 201 is provided with a positioning mechanism 3, the positioning mechanism 3 includes a sliding plate 301, the sliding plate 301 is in the shape of a cuboid and has a smooth surface; There is a chute 4, and the sliding plate 301 is embedded in the chute 4, so that the sliding plate 301 can slide along the width direction of the machine 1; the upper surface of the sliding plate 301 is provided with a positioning block on the side away from the clamping part 2 302, the positioning block 302 is fixedly arranged on the sliding plate 301 by bolts, the upper surface of the sliding plate 301 is provided with a clamping block 303 near the edge of the clamping part 2, the clamping block 303 and the sliding plate 301 are fixedly connected by bolts, and The side of the clamping block 303 away from the positioning block 302 is just against the clamping mold 2 202; a brake screw 304 is also provided above the slide plate 301, and the axial direction of the brake screw 304 is consistent with the length direction of the slide plate 301. 304 is horizontally installed in the positioning block 302, and is threadedly connected with the positioning block 302, and the head of the brake screw 304 is clamped on the side of the clamping block 303 close to the positioning block 302; when the user twists the brake screw 304 away from When clamping the end of one end of the block 303 , the clamping block 303 is brought along the length direction of the sliding plate 301 for fine adjustment.

Referring to accompanying drawing 2, above-mentioned clamping block 303 upper surface is provided with two limiting blocks 5 near the edge of clamping mold 2 202, and two limiting blocks 5 are arranged at intervals along the length direction of machine platform 1; It is in the shape of a cuboid, and the end of the limit block 5 away from the clamping die 202 is connected with the clamping block 303 by a bolt, and the end close to the clamping die 202 is vertically threaded with a tightening bolt 6, and the lower end of the clamping bolt 6 faces The upper surface of the second clamping die 202 is in contact with the lower one, so that when the jacking bolt 6 is tightened, the second clamping die 202 is restricted.

Referring to accompanying drawings 2-3, an oil cylinder 7 is provided below the sliding plate 301. The oil cylinder 7 is located on the side of the machine 1 away from the clamping part 2. It is fixedly connected with the machine 1 through bolts, and the oil cylinder 7 The output shaft and the lower surface of the sliding plate 301 are screwed together, so that when the output shaft of the oil cylinder 7 stretches or shrinks, the sliding plate 301 promptly moves linearly along the extending direction of the chute 4 on the machine platform 1 synchronously.

Referring to accompanying drawings 1 and 4, the above machine 1 is provided with a turntable 8 near the clamping part 2, and the turntable 8 is located at the end of the machine 1 on the side where the clamping part 2 is provided, as shown in Figure 5-6 The upper surface of the turntable 8 near the side of the clamping part 2 is provided with an annular limiter 9, the limiter 9 is placed on the turntable 8, and a gear shaft 10 is pierced inside the limiter 9, and the gear shaft 10 is connected to the limiter. The position platform 9 is connected together by a key, so that the limit platform 9 and the gear shaft 10 can rotate synchronously; After being locked, the lower surface of the limiting platform 9 is in tight contact with the upper surface of the turntable 8 .

Referring to accompanying drawings 4-5, the lower surface of the limiting platform 9 is vertically extended with three blocks 901, and the three blocks 901 are evenly distributed along the same circumference, and the upper surface of the turntable 8 is correspondingly provided with a card slot 801, so that three The clamping blocks 901 can be embedded in the clamping slots 801 in one-to-one correspondence, so that the limiting platform 9 and the turntable 8 can realize synchronous rotation.

Referring to accompanying drawings 1-2, the upper surface of the turntable 8 is also provided with a bending portion 12, the bending portion 12 includes a driving mold 121 and a driven mold 122, and a mold cavity 17 is formed between the driving mold 121 and the driven mold 122, The length direction of the two is consistent with the length direction of the machine 1. As shown in Figure 6, the active mold 121 and the limit table 9 are detachably connected by bolts; One side of the limiting platform 9 is also provided with a positioning mechanism 3, and the driven mold 122 is detachably connected to the clamping block 303 in the positioning mechanism 3 for positioning the driven mold 122 through bolts.

Referring to accompanying drawings 6-7, the lower end of the above-mentioned gear shaft 10 is rotationally connected with the turntable 8 through bearings, and the shaft section of the gear shaft 10 located below the limit table 9 is connected with a gear 13 through a key and a shaft shoulder. A rack 14 is embedded, and the length direction of the rack 14 is consistent with the machine table 1. The end of the rack 14 away from the turntable 8 is located inside the machine table 1 and is connected to the oil cylinder 15, so that the output shaft of the oil cylinder 15 can push the rack 14 makes a linear reciprocating motion, and the rack 14 can drive the gear 13, the limiting platform 9 and the turntable 8 to rotate synchronously.

Referring to the accompanying drawing 1, a mandrel 16 is provided on the upper surface of the machine 1 along its length direction, and the end of the mandrel 16 close to the turntable 8 is placed in the mold cavity 17.

The working principle of this embodiment is: before bending, the worker first selects the appropriate clamping part 2 and bending part 12 according to the type of steel pipe to be bent, and installs them on the machine table 1 and the turntable 8 respectively Then the workman sets the steel pipe on the shaft section of the mandrel 16 close to the end of the turntable 8, and places the mandrel 16 together with the steel pipe in the mold cavity 17 as a whole, and then controls the output shaft of the oil cylinder 7 to elongate and pushes the two sliding plates 301 respectively Move toward clamping mold one 201 and active mold 121.

After the output shaft of oil cylinder one 7 moves in place, the worker can fine-tune the position of clamping block 303 by twisting the brake screw 304, and finally clamping mold one 201 and clamping mold two 202 can just clamp the steel pipe at the same time. It is advisable that cavity 17 just can accommodate the lower steel pipe.

After completing the above preparations, start the oil cylinder 2 15, the oil cylinder 2 15 will drive the limit table 9 and the turntable 8 to rotate synchronously through the intermeshed rack 14 and gear 13, and at the same time, the mold cavity 17 will clamp the end of the steel pipe And bend it to a certain angle to complete the bending operation of the steel pipe.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading this specification, but as long as they are within the utility model All new claims are protected by patent law.

Claims (8)

1. A hydraulic pipe bending machine, including a machine platform (1), characterized in that: the machine platform (1) is fixed with a clamping part (2) for clamping steel pipes, and the machine platform (1) is A bending part (12) is also rotated, and the bending part (12) includes a driving mold (121) and a driven mold (122). There is a mold cavity (17) for accommodating steel pipes, and a second oil cylinder (15) is fixed inside the machine (1), and the second oil cylinder (15) drives the bending part (12) to rotate synchronously. 2. A hydraulic pipe bending machine according to claim 1, characterized in that: both the clamping part (2) and the bending part (12) are detachably connected to the machine table (1). 3. A hydraulic pipe bender according to claim 2, characterized in that: the clamping part (2) includes clamping die one (201) and clamping die two (202), and the bending part (12 ) also includes a turntable (8), the turntable (8) is connected to the machine (1) in rotation, the clamping mold 2 (202) and the driven mold (122) are respectively connected to the machine (1) and the turntable (8) Sliding arrangement, the sliding direction of the clamping die 2 (202) and the driven die (122) is perpendicular to the axial direction of the steel pipe, and the machine table (1) and the turntable (8) are respectively equipped with The positioning mechanism (3) of clamping mold two (202) and driven mold (122). 4. A hydraulic pipe bender according to claim 3, characterized in that: the two positioning mechanisms (3) both include sliding plates (301), and the two sliding plates (301) are respectively connected to the turntable (8) and the machine table (1) in a sliding arrangement, the sliding direction of the sliding plate (301) is parallel to the length direction of the sliding plate (301), and the two sliding plates (301) are fixedly connected with a cylinder one (7 ). 5. A hydraulic pipe bending machine according to claim 4, characterized in that: the machine table (1) and the turntable (8) are provided with chute along the length direction of the corresponding sliding plate (301) ( 4), the two sliding plates (301) are respectively embedded in the corresponding chute (4). 6. A hydraulic pipe bending machine according to claim 3, characterized in that: the machine table (1) is provided with a gear (13), and the gear (13) is coaxially fixedly connected with the turntable (8) , and the machine (1) is correspondingly provided with a rack (14), and the end of the rack (14) away from the bending portion (12) is fixedly connected to the oil cylinder 2 (15). 7. A hydraulic pipe bending machine according to claim 1, characterized in that: the machine table (1) is also provided with a mandrel (16), and the mandrel (16) is far away from the bending part (12) One end is fixedly connected with the machine table (1), and the end of the mandrel (16) close to the bending part (12) is placed in the mold cavity (17). 8. A hydraulic pipe bender according to claim 7, characterized in that: the mandrel (16) is soft.