CN115502255A

CN115502255A - Comprehensive pipe bender suitable for complex structure and pipe bending process thereof

Info

Publication number: CN115502255A
Application number: CN202210727549.5A
Authority: CN
Inventors: 焦玉平
Original assignee: Gd Tech Dongguan Co ltd
Current assignee: Gd Tech Dongguan Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2022-12-23
Also published as: CN111054796A

Abstract

The invention discloses a comprehensive pipe bender suitable for complex structures, which comprises a rack and a protective cover, wherein a main shaft mechanism is arranged on a platform of the rack, the main shaft mechanism is arranged on the platform of the rack in a sliding manner, the main shaft mechanism comprises a main shaft seat, the main shaft seat drives a three-jaw chuck through a motor transmission mechanism, the three-jaw chuck fixes a forming die, and a pressing block and a spiral pipe groove which are matched with a pipe fitting are arranged on the forming die; the ejector pin mechanism is arranged on a platform of the rack in a sliding manner and comprises an ejector pin supporting block and an ejector pin, and the ejector pin is arranged opposite to the forming die; the pipe conveying mechanism comprises a screw rod mechanism arranged on a platform of the rack, a rotatable base is arranged on the screw rod mechanism, a conveying roller and a pressing roller are mounted on the base, and the pressing roller is suspended above the forming die; and the cutting and pipe pressing mechanism is opposite to the pipe conveying mechanism in position. The device is formed by automatic pipe bending, the product quality is stable, and the precision and the efficiency are improved.

Description

Comprehensive pipe bender suitable for complex structure and pipe bending process thereof

The application is a divisional application of an invention patent with a parent case name of 'a comprehensive pipe bender suitable for a complex structure and a pipe bending process thereof'; the application number of the parent application is as follows: CN201911367175.5; the application date of the parent application is as follows: 2019.12.26.

Technical Field

The invention relates to the technical field of pipe bending and forming, in particular to a comprehensive pipe bending machine applicable to complex structures and a pipe bending process thereof.

Background

In the prior art, the forming of the spiral pipe fitting generally requires the assistance of various clamps to hold and rotate the forming by the equipment. Taking a spiral copper bent pipe as an example, the spiral copper bent pipe is a bent piece which is formed by adopting oxygen-free copper or phosphorus deoxidized copper and is bent by removing a spiral groove on a simulation clamp through a spiral clamp with a certain screw pitch, a certain number of turns and a certain main diameter; in addition, according to different operation requirements, different materials are selected and used, and different spiral copper bent pipes, such as a copper strip spiral copper bent pipe, a hollow spiral copper bent pipe and the like, are formed by bending and winding. The spiral copper bent pipe has the main working functions of absorbing heat and reducing temperature through water, and generating heat through an inductive effect and a resistor, and is particularly used in a plurality of industries such as semiconductor equipment, air-conditioning refrigeration, sanitary water heating equipment, fire-fighting equipment, electric control equipment and the like.

Because the existing spiral copper bent pipe manufacturing equipment is low in universality, different production equipment needs to be matched for forming different types of round pipe fittings, rectangular pipe fittings or plates, and therefore manufacturing cost and maintenance cost are high, manual operation is troublesome, and batch product quality is unstable.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a comprehensive pipe bender suitable for complex structures and a pipe bending process thereof.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a comprehensive pipe bender suitable for a complex structure, which comprises a rack, wherein a platform of the rack is also provided with:

the main shaft mechanism is arranged on a platform of the frame in a sliding manner and comprises a main shaft seat and a three-jaw chuck, the main shaft seat drives the three-jaw chuck through a motor transmission mechanism, and a forming die is fixed on the three-jaw chuck;

the ejector pin mechanism is arranged on a platform of the rack in a sliding manner and comprises an ejector pin supporting block and an ejector pin positioned on the ejector pin supporting block, and the ejector pin is installed opposite to the forming die;

the pipe conveying mechanism comprises a conveying roller for driving the pipe fitting to move and a pressing roller for assisting the pipe fitting to be molded, and the pressing roller is suspended above the molding die and used for assisting in pressing materials to press the pipe fitting tightly;

the pipe cutting and pressing mechanism is opposite to the pipe conveying mechanism in position and comprises a stand column base, a pipe cavity used for containing the pipe fitting is installed in the middle of the stand column base, a heating device is arranged outside the pipe cavity, and a pipe cutting device and a pipe pressing device are arranged on the two sides of the stand column base respectively.

Preferably, the forming die is provided with a pressing block and a spiral pipe groove which are matched with the pipe fitting, the pressing block is fixed at two ends of the forming die respectively, and a notch in the pressing block is matched with the spiral pipe groove to contain the pipe fitting; and the screw on one of the pressing blocks locks the forming die so as to press and fix the pipe fitting, the other pressing block locks the forming die, and the notch on the pressing block is matched with the spiral pipe groove so as to limit the forming operation of the pipe fitting on the spiral groove.

Preferably, the platform of the frame is provided with a supporting plate, the supporting plate is provided with a sliding rail, and the sliding rail is provided with a main shaft mechanism and an ejector pin mechanism.

Preferably, the spindle base is fixed on the base plate, the first sliding block below the base plate is connected with the sliding rail in a sliding mode, and the supporting plate is provided with the screw rod mechanism to drive the base plate to slide.

Preferably, the bottom plate is further fixed with a horizontal cylinder, a telescopic rod of the horizontal cylinder is connected with a thimble supporting block, the lower portion of the thimble supporting block is connected with the slide rail in a sliding manner through a second slide block, a thimble fixing block is installed on the thimble supporting block, and a thimble is installed on the thimble fixing block.

Preferably, the pipe conveying mechanism comprises a screw rod mechanism arranged on a platform of the rack, and a rotatable base is arranged on the screw rod mechanism; the conveying rollers comprise an upper roller and a lower roller which are arranged up and down, the lower pressing roller and the upper roller are respectively connected with a lifting cylinder through a bracket, the lifting cylinder is fixed on a lifting plate, and the lifting plate is arranged on the base through a screw rod mechanism; wherein the down-pressure roller is replaceable.

The lower part of the cutting pipe pressing mechanism is provided with a screw rod mechanism, a rotating platform is arranged on the screw rod mechanism, and the rotating platform is fixedly provided with the upright post seat;

preferably, the tube cavity on the upright post seat is connected with a speed reducing mechanism through a motor, one end of the tube cavity is provided with a lifting cylinder, a lifting plate of the lifting cylinder is provided with the motor and the speed reducing mechanism, and the speed reducing mechanism drives the slicing and cutting tube fitting; the lifting cylinder is installed at the other end of the tube cavity, a pressing plate is fixed on a lifting plate of the lifting cylinder, and a notch matched with the pressing plate is formed in the tail end of the tube cavity.

Preferably, the heating device is a high-frequency heating device arranged outside the tube cavity, and the rotating platform is driven after the rotating speed is reduced by a motor through a speed reducing mechanism.

The invention also provides a comprehensive pipe bending process suitable for the complex structure, and the comprehensive pipe bending machine suitable for the complex structure comprises the following steps:

s1, straightening the pipe fitting, wherein the straightening is realized through an upper conveying roller and a lower conveying roller of a pipe conveying mechanism;

s2, high-frequency heating of the pipe fitting is achieved by arranging a high-frequency heating device outside a pipe cavity on the pipe cutting and pressing mechanism;

s3, bending and forming the pipe fitting, wherein the forming is realized by matching a main shaft mechanism and a tip mechanism through a forming die;

s4, flattening the pipe fitting, which is realized through a pressing block of a pipe pressing mechanism;

and S5, cutting off the pipe fitting by a cutter of the pipe cutting device.

Preferably, in the pipe bending forming process, one end of the heated pipe is fixed on the spiral pipe groove at the front end of the forming die through the pressing block, then the pressing roller of the pipe conveying mechanism contacts the pipe on the spiral pipe groove under the action of the lifting cylinder, the forming die rotates, the main shaft mechanism and the ejector pin mechanism synchronously move backwards, and the subsequent cooling and the next process are completed.

Compared with the prior art, the invention has the following beneficial technical effects:

this device is through automatic return bend shaping, and product quality is stable, and precision and efficiency improve.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a top view of the present invention with the protective cover removed;

FIG. 3 is a front view of the spindle mechanism of the present invention;

FIG. 4 is a perspective view of the spindle mechanism of the present invention;

FIG. 5 is a front view of the ejector pin mechanism of the present invention;

FIG. 6 is a perspective view of the tube delivery mechanism of the present invention;

FIG. 7 is a first perspective view of the cutting and pipe pressing mechanism of the present invention;

FIG. 8 is a second perspective view of the cutting and pipe pressing mechanism of the present invention.

The symbols in the drawings are: 1. a frame; 2. a spindle mechanism; 3. a thimble mechanism; 4. a support plate; 5. a pipe conveying mechanism; 6. cutting a pipe pressing mechanism; 21. a three-jaw chuck; 22. forming a mold; 23. a main shaft base; 24. a base plate; 25. a first slider; 31. a thimble; 32. a thimble fixing block; 33. a thimble supporting block; 34. a horizontal cylinder; 35. a second slider; 51. a lifting cylinder; 52. pressing down the roller; 53. a conveying roller; 54. a hand-operated screw rod mechanism; 55. a base; 61. a pipe cutting device; 62. a column base; 63. a synchronous belt transmission mechanism; 64. a pipe pressing device; 65. an electric screw rod mechanism.

Detailed Description

The following detailed description is provided in conjunction with the embodiments and with reference to the accompanying drawings in order to provide a further explanation of the technical features and advantages of the present invention.

As shown in fig. 1-8, the present invention provides a comprehensive pipe bender suitable for complex structure, which comprises a frame 1 and a protective cover on the frame, and further comprises a spindle mechanism 2 on a platform of the frame, wherein the spindle mechanism is slidably arranged on the platform of the frame, the spindle mechanism comprises a spindle seat 23, the spindle seat drives a three-jaw chuck 21 through a motor transmission mechanism, the three-jaw chuck fixes a forming die 22, and a pressing block and a spiral pipe groove matched with a pipe fitting are arranged on the forming die;

the thimble mechanism 3 is arranged on a platform of the frame in a sliding manner, and comprises a thimble supporting block 33 and a thimble 31 positioned on the thimble supporting block, and the thimble is arranged opposite to the forming die and is equivalent to the workpiece clamping operation of a lathe;

the pipe conveying mechanism 5 comprises a screw rod mechanism arranged on a platform of the rack, a screw rod of a hand-operated screw rod mechanism 54 is driven by a hand wheel, a rotatable base is arranged on the screw rod mechanism and is finely adjusted by hand-operated rotation, the structure is specifically a built-in worm and gear assembly, a conveying roller 53 for driving a pipe fitting to move and a pressing roller 52 for assisting in pipe fitting forming are arranged on the base, and the pressing roller is suspended above a forming die and used for assisting in pressing materials to compress the pipe fitting;

pipe mechanism 6 is pressed in the cutting, and the position that pipe mechanism was pressed in the cutting is relative with the position of sending the pipe mechanism, and pipe mechanism lower part is screw rod mechanism in the cutting, and electronic screw rod mechanism 65 is driven after the motor slows down through reduction gears, and the last rotary platform of installing of screw rod mechanism realizes the station and adjusts, and fixed column base 62 on the rotary platform, column base middle part are equipped with heating device, and column base both sides are equipped with respectively and cut pipe device 61 and press pipe device 64.

Further, forming die both ends fixed pressing block respectively, breach and the spiral tube groove on the briquetting cooperate with the holding pipe fitting, the screw locking forming die on one of them briquetting to compress tightly fixedly the pipe fitting, another briquetting locking forming die, breach and the spiral tube groove on the briquetting cooperate, restriction pipe fitting shaping operation on the helicla flute. The platform of frame on install backup pad 4, set up the slide rail in the backup pad, be equipped with main shaft mechanism and thimble mechanism on the slide rail. The spindle seat is fixed on a bottom plate 24, a first sliding block 25 below the bottom plate is connected with a sliding rail in a sliding mode, a screw rod mechanism is arranged on a supporting plate to drive the bottom plate to slide, and the screw rod mechanism is driven by a motor and a speed reducer after the speed is reduced. The bottom plate is further fixed with a horizontal cylinder 34, a telescopic rod of the horizontal cylinder is connected with a thimble supporting block and used for adjusting and adapting to the installation and matching of various forming dies with different lengths between the three-jaw chuck and the thimble, the lower part of the thimble supporting block is in sliding connection with the sliding rail through a second sliding block 35, a thimble fixing block 32 is installed on the thimble supporting block, and the thimble is installed on the thimble fixing block.

Furthermore, the pressing roller of the pipe conveying mechanism and the upper roller of the conveying roller are respectively connected with a lifting cylinder 51 through a support, the lifting cylinder is fixed on a lifting plate, the lifting plate is installed on a base 55 through a screw rod mechanism, and a screw rod of the screw rod mechanism is externally connected with a hand wheel. A pipe cavity for containing a pipe fitting is mounted on a column seat of the cutting pipe pressing mechanism, the pipe cavity is connected with a speed reducing mechanism through a motor, the speed reducing mechanism is used for synchronizing a belt transmission mechanism 63, a lifting cylinder is arranged at one end of the pipe cavity, the motor and the speed reducing mechanism are arranged on a lifting plate of the lifting cylinder, the speed reducing mechanism drives a slicing piece to rotate to cut the pipe fitting, and the speed reducing mechanism is provided with a belt transmission mechanism; the other end of the tube cavity is provided with a lifting cylinder, a lifting plate of the lifting cylinder fixes a pressing plate, and the tail end of the tube cavity is provided with a notch matched with the pressing plate. The heating device is a high-frequency heating device arranged outside the tube cavity, the rotating platform is driven after the rotating speed is reduced by a motor through a speed reducing mechanism, and the speed reducing mechanism is generally in gear meshing transmission.

The embodiment also provides a pipe bending process applicable to the comprehensive pipe bender with the complex structure, which comprises the following steps:

s3, bending and forming the pipe fitting, wherein the bending and forming are realized through a forming die under the matching of a main shaft mechanism and a tip mechanism;

s4, flattening the pipe fitting, which is realized through a pressing block of the pipe pressing mechanism;

and S5, cutting off the pipe fitting by a cutter of the pipe cutting device.

In the pipe fitting bending forming process, one end of the heated pipe fitting is fixed on a spiral pipe groove at the front end of a forming die through a pressing block, then a pressing roller of a pipe conveying mechanism contacts the pipe fitting on the spiral pipe groove under the action of a lifting cylinder, the forming die rotates, meanwhile, a main shaft mechanism and an ejector pin mechanism synchronously move backwards, after-cooling is completed, and the next process is carried out. The swager constructs adjustable from top to bottom, need change when changing different pipe diameters and pushes down the gyro wheel, and forming die adopts the three-jaw centre gripping, changes the mould when producing the return bend of different internal diameters, and forming die adopts contour machining, need change the mould when producing different products.

The device utilizes the principle that a forming die is combined with a pressing block and combined with spiral forward propulsion, and automatically realizes bending forming of spiral copper bent pipe parts. The equipment spirally bends a copper pipe (a long round pipe phi 2-16 or a long square pipe) to meet the requirement of a product drawing; the spiral screw is suitable for left-right rotation single-layer spiral, the screw pitch (0.2-50) is numerically controlled and adjustable, the pitch diameter (20-180), the stroke (0-300) and the diameter of a raw material are adjusted, and a forming die needs to be replaced; the equipment measures the reliability by the dimensional accuracy (within +/-0.3 tolerance) of the produced product, the efficiency is about 20 minutes/piece, the rotating speed is 0-10r/min, and the clamp changing time of the product replacing clamp is as follows: 30-60 minutes; cutting into one or two parts including a product flattened in the Z-axis direction and a standard part for slicing; the equipment has a high-frequency heating function, the fault elimination time of the equipment is 0-10 minutes (restart time), the safety factor of the equipment is 6, and the safety protection measures of the equipment comprise power-off and gas-off protection, a protection board and the like; the service life of the device is 16 hours, X28 days, X12 months, X10 years =53760 hours; the equipment can meet the normal production of various products and can meet the requirements of drawings.

The device adopts a loose servo motor, a Mitsubishi PLC, an SMC pneumatic cylinder, a Profelis touch screen, a Thai electric switch and a THK guide rail which are all the prior art or materials, and the technical personnel can directly purchase or order from the market according to the required product model and specification.

The electrical components are electrically connected with an external master controller and industrial electricity, and the master controller can be a conventional known device for controlling a computer and the like.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The present invention is described in detail in the above embodiments, and it should be understood that the embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a synthesize bending machine suitable for complex construction, includes the frame, its characterized in that still be provided with on the platform of frame:

the main shaft mechanism is arranged on the platform of the frame in a sliding manner and comprises a main shaft seat and a three-jaw chuck, the main shaft seat drives the three-jaw chuck through a motor transmission mechanism, and a forming die is fixed on the three-jaw chuck;

the pipe cutting and pressing mechanism is opposite to the pipe conveying mechanism in position and comprises a stand column seat, a pipe cavity used for containing the pipe fitting is arranged in the middle of the stand column seat, a heating device is arranged outside the pipe cavity, and a pipe cutting device and a pipe pressing device are arranged on two sides of the stand column seat respectively.

2. The comprehensive pipe bender suitable for complex structures according to claim 1, wherein the forming mold is provided with a pressing block and a spiral pipe groove which are matched with the pipe fitting, the pressing block is fixed at each end of the forming mold, and the notch on the pressing block is matched with the spiral pipe groove to accommodate the pipe fitting; and the screw on one of the pressing blocks locks the forming die so as to tightly press and fix the pipe fitting, the other pressing block locks the forming die, and the notch on the pressing block is matched with the spiral pipe groove so as to limit the forming operation of the pipe fitting on the spiral groove.

3. The comprehensive pipe bender suitable for complex structures according to claim 2, wherein a supporting plate is mounted on the platform of the frame, a slide rail is disposed on the supporting plate, and the main shaft mechanism and the ejector pin mechanism are disposed on the slide rail.

4. The comprehensive pipe bender according to claim 3, wherein said spindle base is fixed on a bottom plate, a first slide block under said bottom plate is slidably connected to said slide rail, and a screw mechanism is disposed on said supporting plate to drive said bottom plate to slide.

5. The comprehensive pipe bender suitable for complex structures according to claim 4, wherein a horizontal cylinder is further fixed on the bottom plate, a telescopic rod of the horizontal cylinder is connected with the thimble supporting block, the lower portion of the thimble supporting block is slidably connected with the slide rail through a second slider, a thimble fixing block is mounted on the thimble supporting block, and the thimble is mounted on the thimble fixing block.

6. The comprehensive pipe bender suitable for complex structures according to claim 1, wherein the pipe feeding mechanism comprises a screw mechanism disposed on the platform of the frame, and a rotatable base is disposed on the screw mechanism; the conveying rollers comprise an upper roller and a lower roller which are arranged up and down, the lower pressing roller and the upper roller are respectively connected with a lifting cylinder through a bracket, the lifting cylinder is fixed on a lifting plate, and the lifting plate is arranged on the base through a screw rod mechanism; wherein the down-pressure roller is replaceable.

7. The comprehensive pipe bender suitable for complex structures according to claim 1, wherein the lower part of the cutting and pressing pipe mechanism is a screw mechanism, a rotary platform is mounted on the screw mechanism, and the upright seat is fixed on the rotary platform;

the pipe cavity on the upright post seat is connected with a speed reducing mechanism through a motor, one end of the pipe cavity is provided with a lifting cylinder, a lifting plate of the lifting cylinder is provided with the motor and the speed reducing mechanism, and the speed reducing mechanism drives the slicing and cutting pipe fittings; the lifting cylinder is installed at the other end of the tube cavity, a pressing plate is fixed on a lifting plate of the lifting cylinder, and a notch matched with the pressing plate is formed in the tail end of the tube cavity.

8. The comprehensive pipe bender suitable for complex structures according to claim 7, wherein the heating device is a high-frequency heating device, and the rotary platform is driven by a motor through a speed reducing mechanism after the rotation speed is reduced.

9. A comprehensive pipe bending process suitable for complex structures, which is characterized in that the comprehensive pipe bending machine suitable for complex structures according to any one of claims 1 to 8 is adopted, and comprises the following steps:

s2, high-frequency heating of the pipe fitting is achieved through a heating device arranged outside a pipe cavity on the pipe cutting and pressing mechanism;

and S5, cutting off the pipe fitting by a cutter of the pipe cutting device.

10. The comprehensive pipe bending process suitable for complex structures according to claim 9, wherein in the pipe bending and forming process, one end of the heated pipe is fixed on the spiral pipe groove at the front end of the forming die through a press block, then the pressing roller of the pipe conveying mechanism contacts the pipe on the spiral pipe groove under the action of the lifting cylinder, the forming die rotates, and simultaneously the main shaft mechanism and the ejector pin mechanism synchronously move backwards, so that the post-cooling is completed and the next process is performed.