CN221064029U - Turning leg pipe bender - Google Patents

Abstract

The utility model discloses a turning leg pipe bender which comprises a clamping mechanism, a turning leg mechanism and a pressure maintaining mechanism, wherein the clamping mechanism comprises a frame, a positioning die, a pressing plate and a first cylinder, the top of the positioning die is provided with a positioning part, the positioning part is used for positioning an electric heating pipe, one side of the positioning die is provided with a turning leg part, the positioning part is provided with a limiting groove communicated with the turning leg part, and the side wall of the limiting groove is in butt joint with the electric heating pipe for limiting; the two corner leg mechanisms are respectively arranged at two sides of the corner leg, each corner leg mechanism comprises a push rod and a second cylinder, and the push rods are used for pushing the pins to bend along the side wall of the end part of the limiting groove; the pressure maintaining mechanism is arranged on one side of the positioning die, which is close to the turning foot part, and comprises a pressure maintaining seat and a third cylinder, wherein the pressure maintaining seat is matched with the turning foot part to extrude and maintain pressure on the turning foot part. The bending machine for the bending pins can bend the electric heating pipes, can reduce the setting of bending dies, simplifies the structure of the bending machine, and is beneficial to the production and the manufacture of equipment.

Description

Turning leg pipe bender

Technical Field

The utility model relates to the technical field of pipe bending machines, in particular to a turning leg pipe bending machine.

Background

The tubular electric heating element, called electrothermal tube for short, is an electric element for converting electric energy into heat energy. The metal armoured electric heating element can heat air, metal mould and various liquids.

In order to make the electrothermal tube better fit to the heating object, it is generally necessary to bend the electrothermal tube.

The pipe bender is a device for bending an electric heating pipe.

In the related art, a bending die is utilized to bend the straight electric heating tube.

However, the existing pipe bending machine generally bends the straight electric heating pipe, the bent electric heating pipe cannot be bent, and most of the existing pipe bending machines bend the electric heating pipe by using a bending die, so that the bending die has a complex structure and is not beneficial to equipment production and manufacturing.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the bending machine for bending the electric heating pipe, which can bend the electric heating pipe, reduce the setting of a bending die, simplify the structure of the bending machine and is beneficial to the production and the manufacture of equipment.

According to an embodiment of the first aspect of the utility model, a turning leg bending machine comprises: the clamping mechanism comprises a frame, a positioning die, a pressing plate and a first air cylinder, wherein the positioning die is arranged on the frame, the top of the positioning die is provided with a positioning part, the positioning part is used for positioning an electric heating pipe, one side of the positioning die is provided with a turning foot part, pins at two ends of the electric heating pipe extend to the turning foot part, one side of the positioning part, which is close to the turning foot part, is provided with a limiting groove communicated with the turning foot part, the side wall of the limiting groove is in butt joint with the electric heating pipe to be limited, the pressing plate is arranged above the positioning die, and the first air cylinder drives the pressing plate to lift so as to compress and loosen the electric heating pipe; the two corner leg mechanisms are respectively arranged at two sides of the corner leg, each corner leg mechanism comprises a push rod and a second cylinder for driving the push rod to approach and depart from the corner leg, and the push rods are used for pushing pins of the bent electric heating tubes to bend along the side walls of the end parts of the limiting grooves; the pressure maintaining mechanism is arranged on one side of the positioning die, which is close to the turning foot part, and comprises a pressure maintaining seat and a third cylinder for driving the pressure maintaining seat to be close to and far away from the turning foot part, and the pressure maintaining seat is matched with the turning foot part to extrude and maintain pressure on the pin of the turning electric heating tube.

The turning leg pipe bender provided by the embodiment of the utility model has at least the following beneficial effects:

1. According to the utility model, the clamping mechanism is arranged and comprises the frame, the positioning die, the pressing plate and the first air cylinder, the positioning die is arranged on the frame, the top of the positioning die is provided with the positioning part, and the positioning part is used for positioning the bent electric heating tube, so that the bent electric heating tube can be stably positioned on the positioning die, and the influence on quality caused by the change of the position of the bent electric heating tube when the bending machine bends the corner of the electric heating tube is avoided.

2. According to the utility model, the corner part is arranged on one side of the positioning die, the pins at two ends of the bent electric heating tube extend to the corner part, the side of the positioning part, which is close to the corner part, is provided with the limiting groove communicated with the corner part, the side wall of the limiting groove is in abutting joint with the bent electric heating tube for limiting, and when the bending machine bends the pins of the bent electric heating tube, the side wall of the limiting groove can support the bent electric heating tube to prevent the bent electric heating tube from being deformed under stress during bending.

3. According to the utility model, the pressing plate is arranged above the positioning die, the first air cylinder drives the pressing plate to lift so as to compress and loosen the bent electric heating tube, so that when the bending machine bends the electric heating tube turning foot, the pressing plate can lower down to tightly bend the electric heating tube, the electric heating tube is prevented from being stressed and rocked, and when the bending machine bends the electric heating tube to complete the turning foot, the pressing plate rises to loosen the bent electric heating tube, and the bent electric heating tube is convenient to take and place.

4. According to the utility model, the two corner leg mechanisms are respectively arranged at two sides of the corner leg, each corner leg mechanism comprises the push rod and the second cylinder for driving the push rod to approach and separate from the corner leg, the push rod is used for pushing the pin of the bent electrothermal tube to bend along the side wall of the end part of the limiting groove, and it can be understood that the pin of the bent electrothermal tube is pushed by the push rod to bend along the side wall of the end part of the limiting groove, and the bending die is replaced by the cooperation of the push rod and the positioning die, so that the setting of the bending die is avoided, the structure of the pipe bender is simplified, and the equipment production and manufacture are facilitated.

5. According to the utility model, the pressure maintaining mechanism is arranged on one side, close to the turning foot, of the positioning die and comprises the pressure maintaining seat and the third cylinder for driving the pressure maintaining seat to be close to and far away from the turning foot, and the pressure maintaining seat is matched with the turning foot to extrude and maintain pressure on the pin of the turned electric heating tube, so that after the pin of the turned electric heating tube is bent by the turning foot mechanism, the pin of the turned electric heating tube is extruded to the turning foot by the pressure maintaining seat, the pin of the turned electric heating tube can be subjected to pressure maintaining by the pressure maintaining seat, the probability of rebound deformation of the pin of the turned electric heating tube is reduced, and the turning foot angle of the turning electric heating tube by the bending machine is more accurate.

According to some embodiments of the utility model, one end of the push rod is connected with the second cylinder, and the other end of the push rod is rotatably provided with a pressing wheel, and the pressing wheel is used for abutting against a pin of the electric heating tube.

According to some embodiments of the utility model, the axis of the pinch roller is vertically arranged, an outer circular surface of the pinch roller is provided with a circular groove, and the circular groove is used for limiting pins of the bent electrothermal tube up and down.

According to some embodiments of the utility model, a chute is provided on the frame, and the chute accommodates the sliding of the push rod.

According to some embodiments of the utility model, the turning leg portion is provided with a turning leg groove, one end of the limiting groove, which is close to the turning leg portion, is communicated with one end of the turning leg groove, the side wall of the joint of the limiting groove and the turning leg groove is in arc transition, and the turning leg groove is used for accommodating pins of the turned electric heating tube.

According to some embodiments of the utility model, the positioning die comprises a first die body and a second die body, the limiting groove is arranged at the top of the first die body, the crutch foot is arranged at one side of the first die body, which is opposite to the second die body, and the second die body can be close to and far away from the first die body.

According to some embodiments of the utility model, the bottom of the second die body is provided with a mounting column, the rack is provided with a mounting groove for connecting the mounting column, and the length direction of the mounting groove is along the arrangement direction of the first die body and the second die body.

According to some embodiments of the utility model, a positioning column is arranged at the top of the second die body, and the positioning column is in abutting positioning with the bent electric heating tube.

According to some embodiments of the utility model, a first guide rod is arranged on one side, close to the crutch section, of the pressure maintaining seat, a first guide hole for accommodating sliding of the first guide rod is arranged on the positioning die, and the first guide rod and the first guide hole are matched for guiding.

According to some embodiments of the utility model, a safety grating is arranged on the frame, and the safety grating is located on one side of the positioning die, which is away from the pressure maintaining mechanism.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a bent electrothermal tube without a leg according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a bent leg of the electrothermal tube according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a bending machine with a turning leg according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

Fig. 5 is an enlarged view at a shown in fig. 4.

Reference numerals: 100-frame, 110-positioning die, 120-pressing plate, 130-first cylinder, 140-positioning part, 150-corner part, 160-limit groove, 170-push rod, 180-second cylinder, 190-pressure maintaining seat, 200-third cylinder, 210-pressing wheel, 220-ring groove, 230-slide groove, 240-corner groove, 250-first die body, 260-second die body, 270-mounting column, 280-mounting groove, 290-positioning column, 300-first guide rod, 310-first guide hole and 320-safety grating.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A turning leg bending machine according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a turning leg pipe bender according to an embodiment of the present utility model is used for turning a pin of a bent electrothermal pipe.

The electric heating pipe comprises a bent pipe part and pins positioned at two ends of the electric heating pipe, and the electric heating pipe needs to bend the pins at two sides in a direction of approaching each other.

Referring to fig. 3, 4 and 5, a turning leg pipe bender according to an embodiment of the present utility model includes a clamping mechanism, a turning leg mechanism and a pressure maintaining mechanism,

For the clamping mechanism, the clamping mechanism comprises a frame 100, a positioning die 110, a pressing plate 120 and a first cylinder 130, wherein the positioning die 110 is arranged on the frame 100, a positioning part 140 is arranged at the top of the positioning die 110, and the positioning part 140 is used for positioning the electric heating tube, so that the electric heating tube can be stably positioned on the positioning die 110, and the quality is prevented from being influenced by the change of the position of the electric heating tube when the electric heating tube is bent by the pipe bender.

In some specific embodiments, a corner portion 150 is provided on one side of the positioning die 110, pins at two ends of the bent electrothermal tube extend to the corner portion 150, a limit groove 160 communicating with the corner portion 150 is provided on one side of the positioning portion 140 near the corner portion 150, and a side wall of the limit groove 160 abuts against the bent electrothermal tube to limit.

It can be appreciated that, when the bending machine bends the pins of the bent electrothermal tube, the side wall of the limit groove 160 can support the bent electrothermal tube to prevent the bent electrothermal tube from being deformed under force during bending.

Further, the turning leg portion 150 has a turning leg portion groove 240, one end of the limiting groove 160 near the turning leg portion 150 is communicated with one end of the turning leg portion groove 240, the side wall of the joint of the limiting groove 160 and the turning leg portion groove 240 is in arc transition, and the turning leg portion groove 240 is used for accommodating pins of the turned electric heating tube.

It can be appreciated that the corner groove 240 can limit the corner angle of the pin of the bent electrothermal tube, so as to avoid the overlarge corner angle of the pin of the bent electrothermal tube by the pipe bender, and in addition, the side wall arc of the joint of the limit groove 160 and the corner groove 240 is in transition, so that the corner of the pin of the bent electrothermal tube can be attached to the side wall of the joint of the limit groove 160 and the corner groove 240 when the pipe bender turns the pin of the bent electrothermal tube, thereby the corner of the pin of the bent electrothermal tube is smoother.

In some specific embodiments, the positioning die 110 includes a first die body 250 and a second die body 260, the limit groove 160 is disposed at the top of the first die body 250, the turning leg 150 is disposed on a side of the first die body 250 opposite to the second die body 260, and the second die body 260 can be close to and far away from the first die body 250, so that the distance between the first die body 250 and the second die body 260 can be conveniently adjusted, and further, the positioning die 110 can position the electric heating bending tubes adapting to different length sizes.

Further, the second mold body 260 has a mounting post 270 at the bottom thereof, the frame 100 is provided with a mounting groove 280 for coupling the mounting post 270, and the length direction of the mounting groove 280 is along the arrangement direction of the first mold body 250 and the second mold body 260.

It will be appreciated that by adjusting the mounting position of the mounting posts 270 in the mounting slots 280, the fixed position of the second mold body 260 is readily and quickly adjusted.

Further, a first bolt is provided on the mounting groove 280, and the first bolt is screwed with the mounting post 270 to fix the mounting post 270 and the frame 100.

In some embodiments, a positioning post 290 is provided on top of the second mold body 260, and the positioning post 290 is positioned in abutment with the bent electrothermal tube.

It can be appreciated that the positioning column 290 is abutted with the bending position of the bent electrothermal tube, so that the positioning column 290 can be used for rapidly positioning the bent electrothermal tube.

In some specific embodiments, the pressing plate 120 is disposed above the positioning die 110, and the first air cylinder 130 drives the pressing plate 120 to lift to compress and loosen the bent electrothermal tube, so that when the bending machine bends the leg of the electrothermal tube, the pressing plate 120 can lower down to tightly bend the electrothermal tube, so as to avoid the bending electrothermal tube from shaking under the force of the bending electrothermal tube, and when the bending machine bends the electrothermal tube to complete the leg, the pressing plate 120 rises to loosen the bending electrothermal tube, thereby facilitating the taking and placing of the bent electrothermal tube.

Further, a support plate is arranged on the frame 100, the first cylinder 130 is fixed on the support plate, a second guide rod is arranged at the top of the pressing plate 120, a second guide hole for accommodating the lifting of the second guide rod is arranged on the support plate, and the second guide rod and the second guide hole are matched for guiding and limiting, so that the lifting of the pressing plate 120 is more stable.

For the turning leg mechanism, two turning leg mechanisms are arranged, the two turning leg mechanisms are respectively arranged on two sides of the turning leg portion 150, the turning leg mechanism comprises a push rod 170 and a second cylinder 180 for driving the push rod 170 to be close to and far away from the turning leg portion 150, and the push rod 170 is used for pushing pins of the electric heating tube to bend along the side wall of the end portion of the limit groove 160.

It can be understood that the pin of the curved electrothermal tube is pushed by the push rod 170, so that the pin of the curved electrothermal tube turns along the side wall of the end part of the limit groove 160, and the push rod 170 is matched with the positioning die 110 to replace the bending die, thereby avoiding the setting of the bending die, simplifying the structure of the pipe bender and being beneficial to the production and the manufacture of equipment.

In some specific embodiments, one end of the push rod 170 is connected to the second cylinder 180, and the other end of the push rod 170 is rotatably provided with a pinch roller 210, where the pinch roller 210 is used to abut against a pin of the electrothermal tube.

It can be appreciated that, by rotating the push rod 170 to set the pinch roller 210, the pinch roller 210 is used to abut against the pin of the curved electrothermal tube, so that when the push rod 170 pushes the pinch roller 210 to press the pin of the curved electrothermal tube, the pinch roller 210 can roll along the pin of the curved electrothermal tube along with bending of the pin of the curved electrothermal tube, thereby reducing friction resistance between the pinch roller 210 and the curved electrothermal tube and reducing risk of the pinch roller 210 scratching the curved electrothermal tube.

Further, the axial line of the pinch roller 210 is vertically arranged, the outer circumferential surface of the pinch roller 210 is provided with a ring groove 220, and the ring groove 220 is used for limiting the pins of the bent electrothermal tube up and down, so that the pins of the bent electrothermal tube are prevented from being deflected up and down when the pinch roller 210 extrudes and bends the pins of the bent electrothermal tube, and the product quality is prevented from being influenced.

In some embodiments, the frame 100 is provided with a sliding slot 230, and the sliding slot 230 accommodates the sliding of the push rod 170, so that the sliding of the push rod 170 on the frame 100 is smoother.

For the pressure maintaining mechanism, the pressure maintaining mechanism is arranged on one side, close to the corner portion 150, of the positioning die 110, the pressure maintaining mechanism comprises a pressure maintaining seat 190 and a third cylinder 200 for driving the pressure maintaining seat 190 to be close to and far away from the corner portion 150, and the pressure maintaining seat 190 is matched with the corner portion 150 to extrude and maintain pressure on the pins of the bent electric heating tube, so that after the corner mechanism bends the pins of the bent electric heating tube, the pressure maintaining seat 190 further extrudes the pins of the bent electric heating tube to the corner portion 150, the pressure maintaining seat 190 can maintain pressure on the pins of the bent electric heating tube, the probability of rebound deformation of the pins of the bent electric heating tube is reduced, and the corner angle of the bent electric heating tube is more accurate.

In some specific embodiments, a first guide rod 300 is disposed on a side of the pressure maintaining seat 190 close to the corner portion 150, and the positioning die 110 is provided with a first guide hole 310 for accommodating the first guide rod 300 to slide, and the first guide rod 300 and the first guide hole 310 cooperate to guide, so that the movement of the pressure maintaining seat 190 is smoother.

In some embodiments, the frame 100 is provided with a safety grating 320, and the safety grating 320 is located on a side of the positioning die 110 facing away from the pressure maintaining mechanism.

It can be appreciated that the worker gets to put curved electrothermal tube from the side that positioning die 110 was facing away from pressurize mechanism, through setting up safety grating 320 in the side that positioning die 110 was facing away from pressurize mechanism, when safety grating 320 detected that there was the barrier to pass through, safety grating 320 can control the bending machine shut down, when safety grating 320 did not detect that there was the barrier to pass through, the bending machine normal operating to, avoid that workman's hand or other positions accidentally stretch into the work area of bending machine and be accidentally injured by the bending machine, and then, improve the security of bending machine.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A corner bending machine, comprising:

Clamping mechanism, including frame (100), positioning die (110), clamp plate (120) and first cylinder (130), positioning die (110) set up on frame (100), the top of positioning die (110) has location portion (140), location portion (140) are used for locating curved electrothermal tube, one side of positioning die (110) has turn foot (150), the pin at the both ends of curved electrothermal tube extends to turn foot (150), one side that positioning portion (140) is close to turn foot (150) has intercommunication limit groove (160) of turning foot (150), the lateral wall and curved electrothermal tube butt of limit groove (160) are spacing, clamp plate (120) set up the top of positioning die (110), first cylinder (130) drive clamp plate (120) go up and down in order to compress tightly and loosen curved electrothermal tube;

the two corner leg mechanisms are respectively arranged at two sides of the corner leg part (150), each corner leg mechanism comprises a push rod (170) and a second cylinder (180) for driving the push rod (170) to be close to and far away from the corner leg part (150), and the push rod (170) is used for pushing pins of the bent electric heating tube to bend along the side wall of the end part of the limiting groove (160);

The pressure maintaining mechanism is arranged on one side, close to the turning foot portion (150), of the positioning die (110) and comprises a pressure maintaining seat (190) and a third air cylinder (200) driving the pressure maintaining seat (190) to be close to and far away from the turning foot portion (150), and the pressure maintaining seat (190) is matched with the turning foot portion (150) to compress and maintain pressure on pins of a bent electric heating tube.

2. The turning pipe bender according to claim 1, wherein one end of the push rod (170) is connected to the second cylinder (180), and a pinch roller (210) is rotatably disposed at the other end of the push rod (170), and the pinch roller (210) is used for abutting against a pin of the electric heating pipe.

3. The turning pipe bender according to claim 2, wherein the axis of the pinch roller (210) is vertically arranged, an outer circular surface of the pinch roller (210) is provided with a ring groove (220), and the ring groove (220) is used for limiting the pins of the electric heating pipe up and down.

4. The turning leg bending machine according to claim 1, wherein a chute (230) is provided on the frame (100), and the chute (230) accommodates the push rod (170) to slide.

5. The turning leg pipe bender according to claim 1, wherein the turning leg portion (150) has a turning leg groove (240), the end of the limiting groove (160) near the turning leg portion (150) is communicated with one end of the turning leg groove (240), the side wall arc of the connection part of the limiting groove (160) and the turning leg groove (240) is in transition, and the turning leg groove (240) is used for accommodating the pins of the turned electric heating pipe.

6. The turning leg bending machine according to claim 1, wherein the positioning die (110) comprises a first die body (250) and a second die body (260), the limiting groove (160) is formed in the top of the first die body (250), the turning leg (150) is formed on one side of the first die body (250) opposite to the second die body (260), and the second die body (260) can be close to and far away from the first die body (250).

7. The bending machine according to claim 6, wherein the second die body (260) has a mounting post (270) at the bottom thereof, the frame (100) is provided with a mounting groove (280) for connecting the mounting post (270), and the longitudinal direction of the mounting groove (280) is along the arrangement direction of the first die body (250) and the second die body (260).

8. The bending machine according to claim 6, wherein a positioning column (290) is provided at the top of the second die body (260), and the positioning column (290) is positioned in abutment with the electric heating tube.

9. The turning leg pipe bender according to claim 1, wherein a first guide rod (300) is disposed on a side of the pressure maintaining seat (190) close to the turning leg portion (150), the positioning die (110) is provided with a first guide hole (310) for accommodating sliding of the first guide rod (300), and the first guide rod (300) is guided in cooperation with the first guide hole (310).

10. The turning leg pipe bender according to claim 1, wherein the frame (100) is provided with a safety grating (320), and the safety grating (320) is located at a side of the positioning die (110) facing away from the pressure maintaining mechanism.