CN206405223U - The mould clamping structure of bending machine - Google Patents

Abstract

The utility model discloses a mold clamping structure of a pipe bending machine, which comprises a machine platform, on which slide rails are provided, and a pipe fitting feeding group slides and shifts to push pipe fittings into a bending mold wheel on a fixed mold base, and the fixed mold The upper and lower positions of the seat are respectively equipped with a plurality of bending wheels of different sizes, and a clamping structure is set on the curved arm of the pipe bending machine. The clamping structure has a rotating power source, and the output of the rotating power source is connected to the roller. , there is a spiral groove on the drum, which can be used for the guide pillars of the upper and lower clamping bases to extend in, and a line rail mechanism is set up between the sliding base and the guide column of the upper and lower clamping bases, and the clamping base and the fixed die base There is an inclined lifting mechanism between them; when the rotating power source is actuated and the roller rotates, the upper and lower clamping bases can be guided by the line rail mechanism, and the tilting lifting mechanism between the clamping base and the fixed mold base can Cooperate with each other, and the upper and lower clamping bases are alternately advanced, retreated and inclined to rise and fall, clamping and ejecting operations.

Description

Clamping structure of pipe bending machine

technical field

The utility model relates to the technical field of pipe bending machines, in particular to a clamping die structure of a pipe bending machine.

Background technique

At present, there are many kinds of pipe bending machines with variable pipe diameters on the market. The slide rails are mainly installed on the machine table, and the pipe feeding group slides and shifts to push the pipes to be fed into the bending die wheels on the fixed die base and the clamping structure. Between the clamping wheels of the upper clamping base, when the clamping structure is driven by power and rotates with the bending wheel as the axis, the pipe can be bent into the required bending state.

Due to the different bending diameters of the pipe fittings and to avoid the lack of the size of the bending wheel of the fixed die base and the size of the clamping wheel of the die base that are often folded and replaced, some operators have created a set of different sizes at the upper and lower positions of the fixed die base. The bending die wheel, and the upper and lower positions of the clamping mold structure level corresponding to the fixed die base are respectively provided with a clamping die base, and are respectively driven by a power source, and the upper and lower clamping die bases are respectively equipped with corresponding fixed dies. The clamping wheel of the bending wheel at the upper and lower positions of the seat; the user can choose the fixed die seat above or below according to the needs of the pipe bending, and drive the power source of the corresponding clamping seat to perform the clamping action. For subsequent pipe bending operations.

Although the clamping structure of this pipe bending machine has the advantages of being able to adapt to the different bending diameters of pipe fittings and avoiding the frequent folding and changing of the size of the bending wheel of the fixed die base, the upper and lower clamping bases are respectively driven by the corresponding force. Driven by the power source, it not only has high manufacturing costs, but also easily causes interference when the pipe fittings are demolded because of the horizontal corresponding setting between the power source and the clamping mold base.

Therefore, it is necessary to design a new clamping die structure of the pipe bender to solve the above technical problems.

Utility model content

In view of the problems existing in the background technology, the purpose of this utility model is to provide a clamping structure of a pipe bending machine, which can achieve the beneficial effects of reducing the production cost and reducing the interference of pipe fittings during demoulding.

The technical scheme of the utility model is realized in the following way: a clamping mold structure of a pipe bending machine, including a machine platform, on which a fixed mold base is arranged up and down, and a bending mold is arranged on the fixed mold base The clamping structure is set on the curved arm driven by the power to swing. The clamping structure has upper and lower clamping seats, and the two clamping seats are equipped with clamping wheels. At the same time, the two clamping seats are rotated together. The power source is shifted by the roller; the output of the rotating power source is connected to the roller, and there is a spiral groove on the roller, which can be used for the guide pillars of the upper and lower clamping mold bases to extend into, and the spiral groove is divided into the front stroke section and the rear stroke section by the slope. In the stroke section, the slope of the rear stroke section is smaller than that of the front stroke section, and a line rail mechanism is set up between the sliding seat and the guide column of the upper and lower clamping mold bases, and an oblique lifting mechanism is set between the clamping mold base and the fixed mold base; When the rotating power source is actuated and the roller rotates, the upper and lower clamping bases can be guided by the two-stage slope spiral groove embedded in the roller corresponding to the guide pillar and the guide of the line rail mechanism between the slide seat and the guide pillar , and the mutual cooperation of the oblique lifting mechanism between the clamping mold base and the fixed mold base, and the upper and lower clamping mold bases alternately advance, retreat, and obliquely rise and fall for the clamping and ejection operations.

In the above technical solution, the inclined elevating mechanism cooperates with a guide block on the side of the clamping die base, and the guide block is correspondingly fitted in the guide groove of the side wall, and is positioned between the fixed die base and the clamping die base. A line rail device is provided so that when the mold clamping base is moved back and forth by the rotating power source, under the cooperation of the guide block, the guide groove, and the line rail device, it will gradually ascend to clamp the mold or descend to release the mold.

In the above technical solution, the inclined lifting mechanism is provided with a cam eccentrically at the output of the front end of the drum, and an arc-shaped guide groove is arranged on the cam, and the guide block fixed on the fixed mold base is accommodated in the arc-shaped guide groove. A line rail device is installed between the fixed mold base and the clamping mold structure. When the rotary power source is linked to the rotation of the roller, the cam will be rotated together. Next, make the clamping base carry out the action of gradually ascending clamping mold or descending demoulding.

The mold clamping structure of the pipe bender of the utility model is provided with a spiral groove on the rotating drum driven by a single rotating power source, so that the guide columns of the upper and lower clamping mold bases are correspondingly embedded and matched with the sliding seats of the upper and lower clamping mold bases Guided by the line rail mechanism between the guide column and the guide column, the upper and lower clamping bases are rotated by the output of the rotating power source, and perform staggered forward and backward clamping and membrane operations to reduce production costs and reduce stripping. Beneficial effects of pipe fitting interference during molding.

Description of drawings

Fig. 1 is the top view exterior view of the utility model;

Fig. 2 is a partially enlarged perspective view of a preferred embodiment;

Fig. 3 is a partial enlarged side view of a preferred embodiment;

Fig. 4 is a partially enlarged side view of a preferred implementation force clamping action;

Fig. 5 is a partially enlarged perspective view of another preferred embodiment;

Figure 6 is a partially enlarged side view of another preferred embodiment;

Fig. 7 is a partially enlarged front view of another preferred embodiment;

Fig. 8 is a partially enlarged side view of another preferred embodiment in the action of the mold clamping;

Fig. 9 is a partially enlarged front view of another preferred embodiment in the action of the mold clamping;

Fig. 10 is a developed plan view of the drum.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the mold clamping structure of a kind of pipe bending machine described in the utility model comprises machine platform 1, and the fixed mold base 2 that is arranged up and down is provided on the machine platform 1, and this fixed mold base 2 Each has a plurality of bending die wheels 21 of different sizes, which can be driven by power to make it swing with the bending die wheel as the axis. A clamping structure 3 is arranged on the curved arm 11. This clamping structure 3 has upper and lower set up The clamping base 31, and the two clamping bases 31 all have a plurality of clamping wheels 311 corresponding to the size of the bending die wheel 21, and the two clamping bases 31 are also a rotating power source 32 through a roller 33 and a line rail device 34, 35 transmission and guide, and make the staggered movement of forward clamping and backward demoulding, and set up an oblique lifting mechanism between the two clamping bases 31 and the fixed mold base 2 to guide the clamping base 31 to rise obliquely , descending, and slide rails 12 are set on the machine platform 1, and the pipe fitting feeding group 13 slides and shifts to push the pipe fittings to feed between the bending die wheel 21 and the clamping die wheel 311 to perform pipe bending.

As shown in Fig. 2, Fig. 3, Fig. 4, and Fig. 10, it is a preferred embodiment. Corresponding spiral grooves 331 are respectively provided on the two side walls of the drum 33, and the spiral grooves 331 are divided into front stroke sections by slopes. 3311 and the rear stroke section 3312, the slope of the rear stroke section 3312 is smaller than that of the front stroke section 3311, and guide pillars 313 facing the roller 33 are respectively provided on the sliding seats 312 of the upper and lower clamping mold bases 31, and the two guide pillars 313 are staggered The shape extends into the corresponding spiral groove 331 on the roller 33; a guide block 314 protrudes from the side of the slide seat 312, and a guide block 314 corresponding to the guide block 314 is provided on the inner side of the side plate 22 fixed on the fixed mold base 2. And the inclined guide groove 221 for its accommodation, the guide block 314 and the inclined guide groove 221 form an oblique lifting mechanism; 2 are respectively provided with horizontal and vertical line rail devices 34, 35, as shown in Figure 5, the line rail device 34 is mainly provided with a guide rail 341 on the guide column 313, and a slide rail 341 is provided on the slide seat 312. slot 342, and sleeve the sliding slot 342 on the guide rail 341.

In the line rail device 35 , the sliding groove 351 is arranged on the fixed mold base 2 , and the guide rail 352 for the sliding groove 351 to be nested is arranged on the clamping mold structure 3 . When the rotary power source 32 is activated and transmits this power to the drum 33, the drum 33 will rotate with it. At this time, the clamping base 31 will be affected by the spiral groove 331 on the drum 33 by the front stroke section 3311 due to its guide post 313. Driven by the driving force, the clamping base 31 advances rapidly, and after the guide post 313 reaches the rear stroke section 3312 of the spiral groove 331, the design of the smaller slope of the rear stroke section 3312 provides a clamping mold with a larger torque for the clamping base 31 Force, plus the limited guidance of the line rail device 34 between the sliding seat 312 of the clamping base 31 and the guide post 313, makes the clamping base 31 complete the forward clamping action. In addition, because the upper and lower clamping bases 31 The guide pillars 313 are staggeredly embedded in the spiral grooves 331 of the corresponding rollers 33, so when the rotating power source 32 drives the rollers 33 to rotate, the upper and lower clamping bases 31 will perform clamping and demolding in a staggered manner. the action state. And when the upper and lower clamping bases 31 carry out clamping and demoulding actions, the clamping base 31 will be guided by the guide block 314 on the side of the slide seat 312 and the guide groove 221 on the side plate 22, and Under the cooperative action of the line rail device 35 between the mold clamping structure 3 and the fixed mold base 2, the upper and lower clamping mold bases 31 can carry out the mold clamping and demoulding operations of the oblique movement track.

As shown in Fig. 5 to Fig. 10, it is another preferred embodiment, the spiral groove 331 that is corresponding shape is respectively provided on the two sides peripheral wall of cylinder 33, and each is provided with on the sliding seat 312 of upper and lower die holder 31. There is a guide column 313 facing the drum 33, and the spiral groove 331 is divided into a front stroke section 3311 and a rear stroke section 3312 by a slope. In the corresponding spiral groove 331 on the roller 33; in addition, between the sliding seat 312 and the guide post 313 of the clamping base 31 and between the clamping structure 3 and the fixed die base 2, respectively, horizontal and vertical The line track device 34,35, this line track device 34 is mainly set guide rail 341 on the guide column 313, and establishes chute 342 on slide seat 312, and chute 342 is sleeved on the guide rail 341.

As for the line rail device 35, the chute 351 is arranged on the fixed mold base 2, and the guide rail 352 for the chute 351 to be nested is set on the clamping structure 3; Combined with a cam 36, the cam 36 has a curved guide groove 361, and the guide groove 361 is used to accommodate the guide block 23 fixed on the fixed mold base 2. The guide groove 361 and the guide block 23 form an oblique lifting mechanism. When the rotary power source 32 is activated and transmits this power to the drum 33, the drum 33 will rotate with it. At this time, the clamping base 31 will be affected by the spiral groove 331 on the drum 33 by the front stroke section 3311 of the guide post 313. Driven by the driving force, the mold clamping base 31 advances quickly, and after the guide post 313 reaches the rear stroke section 3312 of the spiral groove 331, due to the design of the smaller slope of the rear stroke section 3312, the clamping mold base 31 is provided with a larger torsion clamping mold The force, coupled with the limited guidance of the line rail device 34 between the sliding seat 312 of the clamping base 31 and the guide post 313, makes the clamping base 31 complete the execution of the forward clamping action.

In addition, because the guide pillars 313 of the upper and lower clamping bases 31 are respectively staggered and embedded in the corresponding spiral grooves 331 of the rollers 33, when the rotating power source 32 drives the rollers 33 to rotate, the upper and lower clamping molds The seat 31 will be in the action state of performing clamping and demoulding in a staggered manner. And when the upper and lower clamping bases 31 carry out clamping and demoulding actions, a cam 36 is eccentrically assembled due to the output of the cylinder 33, and the guide groove 361 on the cam 36 is a guide block affixed to the fixed mold base 2 23, so that during the rotation process of the roller 33, the entire clamping structure 3 is under the cooperation of the guide groove 361 of the cam 36 and the guide block 23, and the upper and lower clamping bases 31 can carry out clamping, Release action.

The mold clamping structure of the pipe bender of the utility model is provided with a spiral groove on the rotating drum driven by a single rotating power source, so that the guide columns of the upper and lower clamping mold bases are correspondingly embedded and matched with the sliding seats of the upper and lower clamping mold bases Guided by the line rail mechanism between the guide column and the guide column, the upper and lower clamping bases are rotated by the output of the rotating power source, and perform staggered forward and backward clamping and membrane operations to reduce production costs and reduce stripping. Beneficial effects of pipe fitting interference during molding.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (3)

1. A die clamping structure of a pipe bending machine, characterized in that: it comprises a machine table, which is provided with a fixed mold base that is arranged up and down, and the fixed mold base is provided with a bending mold wheel, which is driven by power The clamping structure is set on the swinging crank arm. The clamping structure has upper and lower clamping bases, and both clamping bases are equipped with clamping wheels. At the same time, the two clamping bases are driven by a rotating power source Displacement; the drum is connected at the output of the rotating power source. There is a spiral groove on the drum, which can be used for the guide pillars of the upper and lower clamping mold bases to extend into, and the spiral groove is divided into the front stroke section and the rear stroke section by the slope, and the rear stroke The slope of the section is smaller than that of the front stroke section, and a line rail mechanism is set between the sliding seat and the guide column of the upper and lower clamping mold bases, and an oblique lifting mechanism is set between the clamping mold base and the fixed mold base; when the rotating power source operates When the roller rotates in parallel, the upper and lower clamping bases can be guided by the two-stage slope spiral groove corresponding to the guide post embedded in the drum and the line rail mechanism between the slide seat and the guide post, and the clamping base Cooperate with the oblique lifting mechanism between the fixed mold bases, and perform the clamping and ejection operations of the upper and lower clamping mold bases alternately advancing, retreating and obliquely rising and falling. 2. The mold clamping structure of the pipe bender according to claim 1, characterized in that: the inclined lifting mechanism is on the side of the clamping mold base and cooperates with a guide block, and the guide block is correspondingly fitted to the side wall In the guide groove, and a line rail device is set between the fixed mold base and the clamping mold base, so that when the clamping mold base is driven by the rotating power source and shifted back and forth, the matching of the guide block, the guide groove, and the line rail device Under the action, it gradually rises to clamp the mold or descends to demould. 3. The mold clamping structure of the pipe bender according to claim 1, characterized in that: the oblique lifting mechanism is provided with a cam eccentrically at the output of the front end of the drum, and an arc-shaped guide groove is arranged on the cam, and the arc-shaped The guide block fixed on the fixed mold base is accommodated in the guide groove, and a line rail device is installed between the fixed mold base and the clamping mold structure. Under the cooperative action of the guide block, the arc-shaped guide groove and the line rail device, the mold clamping base can be gradually raised to clamp the mold or lowered to release the mold.