An automatic pipe bending apparatus

Abstract

The application relates to an automatic pipe bending device and relates to the technical field of pipe bending machines. The device comprises a workbench for receiving copper pipes, a pipe bending machine arranged on the workbench, a fixing block arranged on the workbench, a forming block connected to one side of the fixing block, a moving block placed on the workbench, a telescopic air cylinder connected to the moving block, the telescopic air cylinder being fixed on the workbench, a pressing block connected to one side of the moving block close to the forming block, the copper pipe being located between the forming block and the pressing block, the moving block being driven by the telescopic air cylinder to drive the pressing block to extrude the copper pipe on the forming block. The application has the effects of detecting unqualified products and immediately processing the unqualified products again, convenient operation and high work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe bender, in particular to an automatic pipe bending device. BACKGROUND

[0002] The shape of copper pipes in air conditioners is various, and some copper pipes need to be bent before being installed in air conditioners. Generally, a pipe bender is used to bend the copper pipe into the required shape.

[0003] In the related art, a kind of automatic pipe bender is disclosed in Chinese patent with authorization announcement No.CN216369666U, comprising support workbench, support workbench is provided with mandrel along length direction, mandrel is fixed on support workbench by setting positioning sleeve, one end of support workbench length direction is equipped with rotary workbench, rotary workbench is equipped with rotary seat and first pressing seat, rotary seat and first pressing seat are rotatably connected on rotary workbench by rotary drive part, rotary workbench is equipped with first drive part, first drive part is connected with first pressing seat, for moving first pressing seat to the direction close to rotary seat. When using, pipe fitting is sleeved on mandrel, pipe fitting moves to abut with positioning sleeve, one end of pipe fitting extends to rotary workbench, first drive part is started, drives first pressing seat to abut pipe fitting on rotary seat, rotary seat and first pressing seat are rotated by starting rotary drive part, and the end of pipe fitting is bent.

[0004] When pipe fitting is bent, the operator needs to observe the appearance of pipe fitting, whether there is obvious bending error, and then use a size measuring tool to measure pipe fitting, and the unqualified pipe fitting is removed for re-bending. The operation is relatively cumbersome, the work efficiency is low, and therefore needs to be improved. SUMMARY

[0005] In order to improve the operation of removing the measured unqualified pipe fitting for reprocessing, which is relatively cumbersome and leads to low work efficiency, the present application provides an automatic pipe bending device.

[0006] The automatic pipe bending device provided by the present application adopts the following technical scheme:

[0007] An automatic pipe bending device comprises:

[0008] A workbench for receiving a copper pipe;

[0009] A pipe bender arranged on the workbench for bending the copper pipe into a shape;

[0010] A fixing block arranged on the workbench and located on one side of the pipe bender, and a forming block detachably connected to one side of the fixing block;

[0011] The mobile block is arranged on the workbench and is located on the side of the forming block away from the fixed block. The side of the mobile block close to the fixed block is detachably connected with the extrusion block. The copper pipe is located between the extrusion block and the forming block. The mobile block is driven by the telescopic cylinder to drive the extrusion block to extrude the copper pipe on the forming block, so as to regularize the copper pipe.

[0012] By adopting the above technical scheme, during work, the copper pipe is first placed in the pipe bender to be bent, so as to be bent into a specific shape. Then, the formed copper pipe is taken out from the pipe bender and placed on the workbench between the forming block and the extrusion block. The telescopic cylinder is started to drive the mobile block to move towards the fixed block. When the extrusion block abuts against the side wall of the copper pipe, the copper pipe is pushed to move until the copper pipe is pressed on the side wall of the forming block. At this time, the opposite sides of the copper pipe are extruded by the extrusion block and the forming block, so that the copper pipe is further constrained to play a regularizing role, that is, the bending angle error of the copper pipe is adjusted. Compared with the way of checking the bending error of the copper pipe by the operator, the copper pipe with error is sent into the pipe bender again to be bent. Through the extrusion of the extrusion block and the forming block, the detection of the copper pipe is more accurate, and the copper pipe with error can be immediately adjusted, so that the work efficiency is improved and the operation is more convenient.

[0013] Optionally, a mounting block is arranged on the side wall of the forming block in the vertical direction. A mounting groove is formed in the side wall of the fixed block. The top end of the mounting groove penetrates the top wall of the fixed block. The mounting block is inserted into the mounting groove from the top end of the mounting groove.

[0014] A plug is arranged on the side wall of the extrusion block in the vertical direction. A plug groove is formed in the side wall of the mobile block. The top end of the plug groove penetrates the top wall of the mobile block. The plug is inserted into the plug groove from the top end of the plug groove.

[0015] By adopting the above technical scheme, when the shape of the copper pipe to be bent changes, the formed copper pipe after being bent by the pipe bender needs to be detected and further adjusted. First, the forming block needs to be moved away from the workbench, so that the mounting block moves upward in the mounting groove until the mounting block is completely separated from the mounting groove. Then, the forming block matched with the shape of the copper pipe to be bent is moved towards the workbench, so that the mounting block on the new forming block is aligned with the mounting groove and is inserted from the top end of the mounting groove. When the mounting block is completely inserted into the mounting groove, the installation of the new forming block on the fixed block is realized.

[0016] The original extrusion block is moved upward, the insertion block is separated from the slot at the top end of the slot, and the extrusion block matched with the shape of the copper pipe to be bent is installed on the moving block, that is, the insertion block on the new extrusion block is inserted into the slot, so that the shape of the forming block and the extrusion block can be adjusted according to the shape of the copper pipe to be bent, and then the copper pipe bent into different shapes can be extruded and further limited and adjusted, and the applicability is good.

[0017] Optionally, the bottom of the fixing block is fixed with a sliding block, the workbench is provided with a sliding groove in the moving direction of the moving block, the sliding block is inserted into the sliding groove and moves in the sliding groove, and the workbench is provided with a fixing bolt, one end of the fixing bolt is inserted into the sliding groove and abuts against the side wall of the sliding block.

[0018] By adopting the above technical scheme, when the diameter of the copper pipe changes, that is, the distance between the forming block and the extrusion block changes, the fixing bolt is adjusted in the direction away from the workbench, so that the end of the fixing bolt is separated from the sliding block, so that the sliding block can move in the sliding groove and drive the fixing block to move, and the inner wall of the sliding groove abuts against the sliding block to limit the sliding block, so that the fixing block does not deviate when moving along the length direction of the sliding groove, so that the forming block always maintains the state of aligning with the extrusion block.

[0019] When the sliding block drives the fixing block to move to the appropriate position, that is, the telescopic cylinder drives the moving block to drive the extrusion block to move to the limit position, the distance between the extrusion block and the forming block is equal to the diameter of the copper pipe, at this time the fixing bolt is adjusted in the direction close to the workbench, so that the end of the fixing bolt abuts against the side wall of the sliding block, the sliding block is pressed against the inner wall of the sliding groove, the sliding block is fixed, and the distance of the position of the fixing block on the workbench is realized, so that the copper pipes with different diameters can be extruded and regularized.

[0020] Optionally, the workbench is provided with a limiting assembly, the limiting assembly is used for positioning the copper pipe in the direction perpendicular to the moving track of the moving block, and the limiting assembly comprises:

[0021] A limiting rod is inserted into the workbench, one end of the limiting rod is rotationally connected to the workbench, the other end penetrates through the workbench, the limiting rod is perpendicular to the moving direction of the moving block, and the two ends of the limiting rod are provided with thread structures with opposite rotation directions;

[0022] Two limiting plates are sleeved on the limiting rod and are threadedly connected with the limiting rod, the copper pipe is located between the two limiting plates, and the limiting rod is rotated to drive the two limiting plates to move close to or away from each other.

[0023] By adopting the technical scheme, when the copper pipe formed by the pipe bender is placed between the forming block and the extruding block and also between the two limiting plates, the limiting rod is rotated to drive the two limiting plates to move towards each other until the two limiting plates abut against the end of the copper pipe, the copper pipe is positioned in the width direction of the workbench, and the copper pipe is aligned with the forming block and the extruding block, thereby increasing the stability of the extruding block in aligning with and extruding the copper pipe.

[0024] Optionally, the workbench is provided with a transmission mechanism for driving the limiting rod to move, the transmission mechanism comprises:

[0025] a transmission rack fixed on the moving block;

[0026] a transmission gear rotatably connected to the workbench and engaged with the transmission rack, the transmission gear is connected with a transmission belt, the transmission belt comprises a driving wheel, a driven wheel and a belt, the belt is sleeved on the driving wheel and the driven wheel, the belt is driven to move by the rotation of the driving wheel, and the transmission gear is coaxially fixed with the driving wheel;

[0027] a moving assembly arranged on the limiting rod, the driven wheel of the transmission belt is connected with the moving assembly to drive the limiting rod to rotate.

[0028] By adopting the technical scheme, when the copper pipe is straightened, the telescopic air cylinder drives the moving block to move until the extruding block extrudes the copper pipe, and the copper pipe that is not completely bent will be deformed again under the influence of the extruding block and the forming block. In this process, the length of the copper pipe in the width direction of the workbench will be shortened. At the same time, the moving block also drives the transmission rack to move, thereby driving the transmission gear to rotate, so that the transmission belt drives the moving assembly to rotate, and then drives the limiting rod to rotate, so that the two limiting plates move towards each other at the same time when the extruding block extrudes the copper pipe, thereby realizing that the limiting plates are always in abutment with the copper pipe, that is, the copper pipe is not easy to move in the width direction of the workbench during the bending process, thereby preventing the bending point of the copper pipe from deviating, and increasing the stability of the bent copper pipe.

[0029] Optionally, the moving assembly comprises:

[0030] a sleeve sleeve on one end of the limiting rod protruding from the workbench, an inner wall of the sleeve is fixed with a sliding block, a side wall of the limiting rod is provided with a moving groove along the length direction of the limiting rod, and the limiting block is inserted into and moves in the moving groove;

[0031] a moving gear coaxially fixed on the sleeve, a gear slot is formed through the driven wheel of the transmission belt, and the limiting rod penetrates through the gear slot, when the moving gear is inserted into the gear slot, the transmission belt is rotated to drive the moving gear to rotate.

[0032] By adopting the technical scheme, when the copper pipe is placed between the two limiting plates, the sleeve moves away from the workbench, so that the sleeve slides on the limiting rod until the moving gear is extracted from the tooth groove, then the sleeve is rotated, the side wall of the sliding block abuts against the inner wall of the moving groove, thereby driving the limiting rod to rotate with the sleeve until the two limiting plates abut against the copper pipe, realizing the positioning of the copper pipe before the extrusion block extrudes the copper pipe.

[0033] When the extrusion block moves to abut against the copper pipe, and the other side of the copper pipe also contacts the forming block, the sleeve is moved towards the workbench, so that the moving gear is re-inserted into the tooth groove, the teeth of the moving gear abut against the inner wall of the tooth groove, so that the sleeve is fixed with the driven wheel of the transmission belt, when the extrusion block starts to extrude the copper pipe, that is, the moving block continues to drive the extrusion block to move, the transmission rack drives the transmission gear to rotate, drives the transmission belt to move, and at the same time, the driven wheel drives the sleeve to rotate synchronously, so that the limiting rod rotates around the central axis of the sleeve, so that the two limiting plates continuously approach, realizing the limiting of the copper pipe during the extrusion process.

[0034] Optionally, the limiting plate is provided with an adjusting assembly for adjusting the distance between the copper pipe and the limiting plate, the adjusting assembly comprising:

[0035] An adjusting plate is arranged on one side of the limiting plate close to the center of the limiting rod, an adjusting block is connected to the adjusting plate through an extension plate, an adjusting groove is formed in the side wall of the limiting plate along the length direction of the limiting rod, and the adjusting block is inserted into and moves in the adjusting groove;

[0036] An adjusting rod is inserted into the adjusting groove through the limiting plate, the end of the adjusting rod is rotatably connected to the inner wall of the adjusting groove, the adjusting rod is arranged along the length direction of the limiting rod, and the adjusting rod penetrates through the adjusting block and is threadedly connected with the adjusting block.

[0037] By adopting the technical scheme, when the bending point of the copper pipe deviates from the perpendicular bisector of the line between the two limiting plates, or the multiple bending points are not symmetrically arranged around the perpendicular bisector, that is, the distances from the two ends of the copper pipe in the length direction to the center of the limiting rod are not equal after the copper pipe is bent, the adjusting rod is rotated to drive the adjusting block to move in the adjusting groove, so that the extension plate drives the adjusting plate to move until the adjusting plate abuts against the end of the copper pipe, realizing the limiting of the copper pipes of different shapes. Similarly, the adjusting plate can also realize the fine adjustment of the position of the copper pipe to compensate for the distance between the copper pipe and the limiting plate caused by the manufacturing error of the copper pipe, thereby increasing the accuracy of the regular copper pipe.

[0038] Optionally, a supporting rod is vertically fixed on the fixed block, a pressing plate is sleeved on the supporting rod, the pressing plate is used to abut against the bottom wall of the copper pipe and the workbench, a pressing spring is sleeved on the supporting rod, and the pressing spring is used to push the pressing plate towards the workbench.

[0039] By adopting the technical scheme, when the copper pipe is extruded on the forming block by the extruding block, the pressing plate applies downward pressure on the copper pipe under the action of the pressing spring, so that the copper pipe is not easy to deviate upward, and the copper pipe is not easy to deform during extrusion of the regular copper pipe by the extruding block.

[0040] Optionally, the workbench is provided with a fan, and an output end of the fan is aligned between the extruding block and the forming block.

[0041] By adopting the technical scheme, after the copper pipe is regularized, copper scraps are easy to be left between the extruding block and the forming block, at this time, the motor is started to drive the fan to rotate, so that air flow is generated to blow the extruding block and the forming block, and then the copper scraps are blown away from between the extruding block and the forming block, so that cleaning is realized without damaging the copper pipe to be extruded subsequently.

[0042] Optionally, the pressing plate is provided with a cleaning assembly, the cleaning assembly is used for cleaning a side where the forming block and the extruding block are close to each other, and the cleaning assembly comprises:

[0043] A sliding rod is inserted into and moves on the pressing plate, the sliding rod is arranged along the length direction of the limiting rod, one end of the sliding rod extends out of the pressing plate, and a connecting rod perpendicular to the sliding rod is fixed to the one end;

[0044] An installation rod is parallel to the sliding rod, the installation rod is rotationally connected to the connecting rod, a rotating plate perpendicular to the installation rod is fixed to the installation rod, the rotating plate drives the installation rod to rotate, a motor is fixed to the workbench, an output end of the motor is aligned between the extruding block and the forming block, a round roller is coaxially fixed to the output end of the motor, a plurality of pushing rods are uniformly arranged on the circumferential side wall of the round roller, the pushing rods abut against the rotating plate to push the rotating plate to move, and a brush is covered on the installation rod to clean the side where the forming block and the extruding plate are close to each other.

[0045] A brush is covered on the installation rod to clean the side where the forming block and the extruding plate are close to each other.

[0046] By adopting the technical scheme, in the initial state, the installation rod is located above the pressing plate, when it is necessary to clean between the extruding block and the forming block, the sliding rod is moved on the pressing plate along the length direction of the sliding rod until the installation rod moves out of the upper region of the pressing plate, then the sliding rod is rotated to drive the connecting rod to rotate about the central axis of the sliding rod, after the connecting rod is rotated by 180°, the sliding rod is inserted back into the pressing plate again, so that the installation rod drives the brush to move to below the pressing plate, and the brush abuts against the side walls of the extruding block and the forming block.

[0047] The motor drives the round roller to rotate with the central axis of the round roller as the axis, when the advancing rod abuts against the rotating plate, the rotating plate is pushed to move, so that the mounting rod drives the brush to rotate with the central axis of the mounting rod as the axis, the brush cleans the extrusion block and the forming block in the moving process, and the copper scraps stuck in the recesses of the extrusion block and the forming block are cleaned away, and the cleaning effect is good.

[0048] In summary, the present application includes at least one of the following beneficial effects:

[0049] 1. The formed copper pipe is taken out from the pipe bender, placed on the workbench and located between the forming block and the extrusion block, the telescopic cylinder is started to drive the moving block to move towards the fixed block, when the extrusion block abuts against the side wall of the copper pipe, the copper pipe is pushed to move until the copper pipe is pressed on the side wall of the forming block, at this time, the opposite sides of the copper pipe are extruded by the extrusion block and the forming block, so that the copper pipe is further constrained, the regularizing effect is achieved, that is, the angle error of the copper pipe bending is adjusted, the detection of the copper pipe is more accurate, the copper pipe with error can be adjusted immediately, the work efficiency is improved, and the operation is more convenient;

[0050] 2. When the shape of the copper pipe to be bent changes, the copper pipe bent and formed by the pipe bender needs to be detected and further adjusted, the forming block needs to be moved away from the workbench first, so that the mounting block moves upward in the mounting groove until the mounting block is completely separated from the mounting groove, then the forming block matched with the shape of the copper pipe to be bent is moved towards the workbench, so that the mounting block on the new forming block is aligned with the mounting groove and inserted from the top end of the mounting groove, when the mounting block is completely inserted into the mounting groove, the installation of the new forming block on the fixed block is realized. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 It is a structural schematic view of the automatic pipe bending equipment of the embodiment of the present application;

[0052] Figure 2 It is a structural sectional view of the connection relationship between the fixed block and the workbench;

[0053] Figure 3 It is a schematic view of the internal structure of the workbench;

[0054] Figure 4 It is a structural sectional view of the connection relationship between the limiting assembly and the workbench;

[0055] Figure 5 It is Figure 4 It is an enlarged view of the middle B;

[0056] Figure 6 It is Figure 2 It is an enlarged view of the middle A;

[0057] Figure 7A schematic view of the cleaning assembly.

[0058] In the figure: 10, workbench; 11, sliding groove; 20, fixed block; 21, mounting groove; 22, sliding block; 30, forming block; 31, mounting block; 40, moving block; 41, insertion slot; 50, extrusion block; 51, insertion block; 60, limiting assembly; 61, limiting rod; 611, moving slot; 62, limiting plate; 621, adjusting slot; 70, transmission mechanism; 71, transmission rack; 72, transmission gear; 73, transmission belt; 731, driving wheel; 732, driven wheel; 7321, tooth groove; 733, belt; 74, moving assembly; 741, sleeve; 7411, sliding block; 742, moving gear; 80, adjusting assembly; 81, adjusting plate; 811, extension plate; 82, adjusting block; 83, adjusting rod; 90, cleaning assembly; 91, sliding rod; 911, connecting rod; 92, mounting rod; 921, rotating plate; 93, brush; 110, pipe bender; 120, telescopic air cylinder; 130, fixing bolt; 140, supporting rod; 150, pressing plate; 160, pressing spring; 170, fan; 180, motor; 190, round roller; 191, pushing rod. DETAILED DESCRIPTION

[0059] The following description will be made in conjunction with the accompanying drawings. Figures 1-7 The application is described in further detail.

[0060] The embodiments of the application disclose an automatic pipe bending device. Referring to Figure 1 and Figure 2 The automatic pipe bending device comprises a workbench 10 for receiving a copper pipe, and a pipe bender 110 fixed on the workbench 10. The pipe bender 110 comprises a conveying member, a rotating seat and a pressing seat. The conveying member is fixed on the workbench 10 and used to drive the copper pipe to move along the length direction of the workbench 10. The rotating seat and the pressing seat are rotatably connected to the workbench 10 through a rotating member. The pressing seat is driven to abut against the rotating seat by a cylinder. The cylinder is arranged on the workbench 10. The pipe bender 110 is prior art, and will not be described in detail here. In use, the copper pipe is placed on the workbench 10, and the conveying member drives the copper pipe to the position between the rotating seat and the pressing seat. The cylinder is started to drive the pressing seat to move towards the rotating seat until the copper pipe is clamped. Then the rotating member drives the rotating seat and the pressing seat to rotate, so that the copper pipe is bent.

[0061] Referring to Figure 2 and Figure 3, in order to facilitate the detection of the copper pipe after bending and immediately to the unqualified product processing again, the fixed block 20 is arranged on the workbench 10, and the fixed block 20 is located on one side of the pipe bending machine 110, the bottom of the fixed block 20 is fixed with the sliding block 22, the sliding groove 11 is opened on the workbench 10 along the length direction of the workbench 10, the sliding block 22 is inserted in the sliding groove 11 and can move in the sliding groove 11, the fixed bolt 130 is horizontally arranged on the workbench 10, the fixed bolt 130 is rotatably connected on the workbench 10, one end of the fixed bolt 130 extends into the sliding groove 11 and abuts against the side wall of the sliding block 22, the other end extends out of the workbench 10, the moving block 40 is arranged on the workbench 10, the moving block 40 is arranged along the length direction of the workbench 10 with the fixed block 20, and the moving block 40 is driven by the telescopic cylinder 120 to move on the workbench 10 along the length direction of the workbench 10 to approach or away from the fixed block 20, wherein the telescopic cylinder 120 is fixed on the workbench 10 by bolts, and the output end of the telescopic cylinder 120 is fixed with the moving block 40.

[0062] Referring to Figure 2 and Figure 3 , the side of the fixed block 20 close to the moving block 40 is provided with a shaped block 30, the side wall of the fixed block 20 is provided with an installation slot 21 in the vertical direction, the top end of the installation slot 21 penetrates the top wall of the fixed block 20, the side of the shaped block 30 away from the moving block 40 is fixed with an installation block 31, and the installation block 31 is inserted into the installation slot 21 from the top end of the installation slot 21. The side of the moving block 40 close to the fixed block 20 is provided with an extrusion block 50, the side wall of the moving block 40 is provided with an insertion slot 41 in the vertical direction, the top end of the insertion slot 41 penetrates the top wall of the moving block 40, and the side wall of the extrusion block 50 is fixed with an insertion block 51, which is inserted into the insertion slot 41 from the top end of the insertion slot 41, so that the shape of the shaped block 30 and the extrusion block 50 can be adjusted according to the shape of the copper pipe required to be bent.

[0063] In use, the shaped copper pipe is taken out from the pipe bending machine 110, placed on the workbench 10 and located between the shaped block 30 and the extrusion block 50, then the fixed block 20 is moved according to the diameter of the copper pipe, after the sliding block 22 drives the fixed block 20 to move to the appropriate position, the fixed bolt 130 is adjusted to the direction close to the workbench 10 until the fixed bolt 130 abuts against the inner wall of the sliding groove 11 to fix the sliding block 22. Then the telescopic cylinder 120 is started to drive the moving block 40 to move to the direction of the fixed block 20, when the extrusion block 50 abuts against the side wall of the copper pipe, the copper pipe is pushed to move until the copper pipe is pressed on the side wall of the shaped block 30, at this time, the copper pipe is extruded by the extrusion block 50 and the shaped block 30 on the opposite sides, so that the copper pipe is further constrained to play a role of regularizing, that is, the angle error of the copper pipe bending is adjusted, so that the detection of the copper pipe is more accurate, and the copper pipe with error can be adjusted immediately, the work efficiency is improved, and the operation is more convenient.

[0064] Referring to Figure 3 and Figure 4 In order to enable the bending point of the copper pipe to be aligned with the extrusion block 50 and the forming block 30, a limiting assembly 60 is arranged on the workbench 10, the limiting assembly 60 comprising a limiting rod 61 and two limiting plates 62, the limiting rod 61 being a bidirectional screw rod, i.e. the limiting rod 61 is provided with thread structures in opposite directions at both ends, the limiting rod 61 being arranged in the workbench 10 and being rotationally connected to the workbench 10, one end of the limiting rod 61 extending out of the workbench 10 to facilitate manual rotation of the limiting rod 61, the two limiting plates 62 being sleeved on the limiting rod 61, and the top ends of the two limiting plates 62 extending out of the upper surface of the workbench 10, one of the limiting plates 62 being threadedly connected to one end of the limiting rod 61, and the other limiting plate 62 being threadedly connected to the other end of the limiting rod 61.

[0065] When the copper pipe that has been bent into a shape by the pipe bender 110 is placed between the forming block 30 and the extrusion block 50 and also between the two limiting plates 62, the limiting rod 61 is rotated to drive the two limiting plates 62 to move towards each other at the same time until the two limiting plates 62 abut against the ends of the copper pipe, thereby positioning the copper pipe in the width direction of the workbench 10 to enable the copper pipe to be aligned with the forming block 30 and the extrusion block 50, and to increase the stability of the extrusion block 50 in aligning with and extruding the copper pipe.

[0066] Referring to Figure 3 and Figure 4 When the copper pipe that has not been bent completely is affected by the extrusion block 50 and the forming block 30 to be deformed again, the length of the copper pipe in the width direction of the workbench 10 will be shortened in this process. In order to enable the limiting plates 62 to always limit the copper pipe, a transmission mechanism 70 is arranged on the workbench 10 to drive the limiting rod 61 to rotate with the movement of the moving block 40. The transmission mechanism 70 comprises a transmission rack 71, a transmission gear 72 and a moving assembly 74, the transmission rack 71 being fixed on the bottom wall of the moving block 40 and being arranged along the movement direction of the moving block 40, the transmission gear 72 being rotationally connected to the workbench 10, and the transmission rack 71 being engaged with the transmission gear 72. A transmission belt 73 is rotationally connected to the workbench 10, the transmission belt 73 comprising a driving wheel 731, a driven wheel 732 and a belt 733, the driving wheel 731 and the driven wheel 732 being rotationally connected to the workbench 10, the belt 733 being sleeved on the driving wheel 731 and the driven wheel 732 and being driven to move by the rotation of the driving wheel 731 and the driven wheel 732, the driving wheel 731 being coaxially fixed with the transmission gear 72 through a connecting rod, the driven wheel 732 being sleeved on the limiting rod 61, and the moving assembly 74 being arranged on the limiting rod 61 to connect the limiting rod 61 and the driven wheel 732.

[0067] When the copper pipe is being shaped, the moving block 40 moves and drives the transmission rack 71 to move, thereby driving the transmission gear 72 to rotate, so that the transmission belt 73 drives the moving assembly 74 to rotate, and further drives the limiting rod 61 to rotate, so that the two limiting plates 62 are close to each other while the extruding block 50 extrudes the copper pipe, thereby realizing that the limiting plates 62 are always in contact with the copper pipe, that is, the copper pipe is not easy to move along the width direction of the workbench 10 in the bending process, so that the bending point of the copper pipe will not be offset, and the stability of the bent copper pipe is increased.

[0068] With reference to Figure 4 and Figure 5 The moving assembly 74 comprises a sleeve 741 and a moving gear 742, the sleeve 741 is sleeved on a section of the limiting rod 61 extending out of the workbench 10, the inner wall of the sleeve 741 is integrally formed with a sliding block 7411, the side wall of the limiting rod is provided with a moving groove 611 along the length direction of the limiting rod, and the sliding block 7411 is inserted into and movable in the moving groove 611. The moving gear 742 is coaxially sleeved on the limiting rod 61, the moving gear 742 is fixed at one end close to the center of the limiting rod 61, the driven wheel 732 is provided with a gear slot 7321, the sleeve 741 can pass through the gear slot 7321, and the limiting gear can be inserted into the gear slot 7321.

[0069] When the copper pipe is placed between the two limiting plates 62, the sleeve 741 moves away from the workbench 10, so that the sleeve 741 slides on the limiting rod 61, until the moving gear 742 is separated from the gear slot 7321, then the sleeve 741 is rotated, the side wall of the sliding block 7411 is in abutment with the inner wall of the moving groove 611, so that the limiting rod 61 rotates with the sleeve 741, until the two limiting plates 62 are in abutment with the copper pipe, and the positioning of the copper pipe before being extruded by the extruding block 50 is realized.

[0070] When the extruding block 50 moves to be in abutment with the copper pipe, and the other side of the copper pipe also contacts the forming block 30, the sleeve 741 is moved to be close to the workbench 10, so that the moving gear 742 is re-inserted into the gear slot 7321, the teeth of the moving gear 742 are in abutment with the inner wall of the gear slot 7321, so that the sleeve 741 is fixed with the driven wheel 732 of the transmission belt 73, when the extruding block 50 starts to extrude the copper pipe, that is, the moving block 40 continues to drive the extruding block 50 to move, the transmission rack 71 drives the transmission gear 72 to rotate, drives the transmission belt 73 to move at the same time, so that the driven wheel 732 drives the sleeve 741 to rotate synchronously, so that the limiting rod 61 rotates around the central axis of the sleeve 741, so that the two limiting plates 62 are constantly close to each other, and the copper pipe is limited during the extrusion process.

[0071] With reference to Figure 2 and Figure 6When the bending point of the copper tube deviates from the perpendicular bisector of the line connecting the two limiting plates 62, or when multiple bending points are not symmetrical about the perpendicular bisector, that is, after the copper tube is bent, the distances from the two ends of the copper tube in the length direction to the center of the limiting rod 61 are not equal, essentially the copper tubes are of different shapes. In order to limit the copper tube, an adjustment component 80 is provided on the limiting plate 62. The adjustment assembly 80 includes an adjustment plate 81 and an adjustment rod 83. The adjustment plate 81 is located on the side of the limiting plate 62 near the center of the limiting rod 61. An extension plate 811 is formed on the side wall of the adjustment plate 81, and an adjustment block 82 is fixed on the side wall of the extension plate 811. An adjustment groove 621 is formed on the side wall of the limiting plate 62 along the length direction of the limiting rod 61. The adjustment block 82 is inserted into the adjustment groove 621 and can move in the adjustment groove 621. One end of the adjustment rod 83 passes through the limiting plate 62 and is inserted into the adjustment groove 621. The adjustment rod 83 is rotatably connected to the limiting plate 62. The adjustment block 82 is sleeved on the adjustment rod 83 and threadedly connected to the adjustment rod 83.

[0072] Rotating the adjusting rod 83 drives the adjusting block 82 to move within the adjusting groove 621, thereby causing the extension plate 811 to move the adjusting plate 81 until the adjusting plate 81 abuts against the end of the copper tube, thus limiting the position of copper tubes of different shapes. Similarly, the adjusting plate 81 can also fine-tune the position of the copper tube to compensate for the distance between the copper tube and the limiting plate 62 caused by manufacturing errors, increasing the accuracy of straightening the copper tube.

[0073] A support rod 140 is fixed on the top wall of the fixing block 20. The support rod 140 is vertically set, and a pressing plate 150 is sleeved on the support rod 140. The pressing plate 150 can move vertically on the support rod 140. A support spring is also sleeved on the support rod 140. One end of the support spring is fixed to the top of the support rod 140, and the other end abuts against the top wall of the pressing plate 150. When the copper tube is pressed onto the forming block 30 by the pressing block 50, the pressing plate 150 applies downward pressure to the copper tube under the action of the pressing spring 160, making it difficult for the copper tube to shift upward.

[0074] Reference Figure 1 and Figure 7 After the copper tubes are straightened, copper shavings are easily left between the extrusion block 50 and the forming block 30. In order to prevent the copper shavings from damaging the shape of the copper tubes, a blower 170 is fixed on the workbench 10. The air outlet of the blower 170 is aligned between the extrusion block 50 and the forming block 30. The workbench 10 is fixed with a connection by bolts. The output end of the motor 180 is also aligned between the extrusion block 50 and the forming block 30, and the output end of the motor 180 is set opposite to the air outlet of the blower 170.

[0075] Reference Figure 7A cleaning assembly 90 is arranged on the pressing plate 150, and the cleaning assembly 90 comprises a sliding rod 91, a mounting rod 92 and a brush 93. The sliding rod 91 is inserted into the pressing plate 150 and is movable on the pressing plate 150. The sliding rod 91 is arranged along the length direction of the limiting rod 61. One end of the sliding rod 91 extends out of the pressing plate 150 and is fixed with a connecting rod 911 which is perpendicular to the sliding rod 91. The mounting rod 92 is connected to one end of the connecting rod 911 away from the sliding rod 91. The mounting rod 92 is perpendicular to the connecting rod 911 and parallel to the sliding rod 91. The brush 93 is wrapped on the mounting rod 92 and can contact the side of the extrusion block 50 and the forming block 30 which are close to each other. One end of the mounting rod 92 extends to the direction of the motor 180 and is integrally formed with a rotating plate 921 on the extended section. The rotating plate 921 is perpendicular to the mounting rod 92. A counterweight is fixed to the side of the rotating plate 921 away from the mounting plate. The rotating plate 921 is always vertically downward under the action of no external force. A circular roller 190 is coaxially fixed to the output end of the motor 180. A plurality of pushing rods 191 are uniformly arranged on the circumferential side wall of the circular roller 190. The rotating plate 921 can be inserted between adjacent pushing rods 191.

[0076] When the copper pipe is finished, copper scraps are easily left between the extrusion block 50 and the forming block 30. At this time, the motor 180 is started to drive the fan 170 to rotate, so as to generate airflow to blow the extrusion block 50 and the forming block 30, thereby blowing the copper scraps away from the extrusion block 50 and the forming block 30, achieving cleaning and not damaging the subsequent extruded copper pipe.

[0077] Referring to Figure 7 In the initial state, the mounting rod 92 is above the pressing plate 150. When it is necessary to clean the extrusion block 50 and the forming block 30, the sliding rod 91 is moved on the pressing plate 150 along the length direction of the sliding rod 91 until the mounting rod 92 moves out of the upper area of the pressing plate 150. Then, the sliding rod 91 is rotated to drive the mounting rod 92 to rotate about the central axis of the sliding rod 91. After the connecting rod 911 is rotated by 180°, the sliding rod 91 is inserted back into the pressing plate 150, so that the mounting rod 92 drives the brush 93 to move to the lower side of the pressing plate 150, and the brush 93 abuts against the side wall of the extrusion block 50 and the forming block 30 which are close to each other.

[0078] In order to improve the cleaning effect, the motor 180 can be started. The motor 180 drives the circular roller 190 to drive the pushing rods 191 to rotate about the central axis of the circular roller 190. When the pushing rods 191 abut against the rotating plate 921, the rotating plate 921 is pushed to move, so that the mounting rod 92 drives the brush 93 to rotate about the central axis of the mounting rod 92. In the moving process of the brush 93, the extrusion block 50 and the forming block 30 are cleaned, and the copper scraps stuck in the recesses of the extrusion block 50 and the forming block 30 are cleaned, so that the cleaning effect is good.

[0079] The implementation principle of the automatic pipe bending device is as follows: when in use, the formed copper pipe is taken out from the pipe bender 110, placed on the workbench 10 between the forming block 30 and the extrusion block 50, the telescopic cylinder 120 is started, the moving block 40 is driven to move towards the fixed block 20, the extrusion block 50 abuts against the side wall of the copper pipe, thereby pushing the copper pipe to move, until the copper pipe is pressed on the side wall of the forming block 30, at this time, the opposite sides of the copper pipe are extruded by the extrusion block 50 and the forming block 30, thereby further restraining the copper pipe, playing a regularizing role, that is, adjusting the angle error of the copper pipe bending, compared with the way of checking the bending error of the copper pipe by the operator, the copper pipe with error is sent into the pipe bender 110 again for bending, through the extrusion of the extrusion block 50 and the forming block 30, the detection of the copper pipe is more accurate, and the copper pipe with error can be adjusted immediately, thereby improving the work efficiency and making the operation more convenient.

[0080] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automatic pipe bending device, characterized in that, include: Workbench (10) is used to receive copper pipes; A pipe bending machine (110) is installed on the workbench (10) and is used to bend copper pipes into shape. A fixing block (20) is provided on the workbench (10) and located on one side of the pipe bending machine (110). A forming block (30) is detachably connected to one side of the fixing block (20). A movable block (40) is provided on the workbench (10) and located on the side of the forming block (30) away from the fixed block (20). The side of the movable block (40) close to the fixed block (20) is detachably connected to an extrusion block (50). The copper tube is located between the extrusion block (50) and the forming block (30). The movable block (40) is driven by a telescopic cylinder (120) to drive the extrusion block (50) to extrude the copper tube onto the forming block (30) for shaping the copper tube. The workbench (10) is provided with a limiting component (60), which is used to position the copper tube in a direction perpendicular to the moving trajectory of the moving block (40). The limiting component (60) includes: A limiting rod (61) is inserted into the worktable (10). One end of the limiting rod (61) is rotatably connected to the worktable (10), and the other end passes through the worktable (10). The limiting rod (61) is perpendicular to the moving direction of the moving block (40). The two ends of the limiting rod (61) are provided with threaded structures with opposite directions of rotation. Two limiting plates (62) are fitted on the limiting rod (61) and threadedly connected to the limiting rod (61). A copper tube is located between the two limiting plates (62). The limiting rod (61) rotates, driving the two limiting plates (62) to move closer to each other or further away from each other. The workbench (10) is provided with a transmission mechanism (70) for driving the movement of the limiting rod (61), the transmission mechanism (70) including: A transmission rack (71) is fixed on the moving block (40); A transmission gear (72) is rotatably connected to the workbench (10) and meshes with the transmission rack (71). The transmission gear (72) is connected to a transmission belt (73). The transmission belt (73) includes a driving pulley (731), a driven pulley (732), and a belt (733). The belt (733) is sleeved on the driving pulley (731) and the driven pulley (732). The belt (733) is driven to move by the rotation of the driving pulley (731). The transmission gear (72) is coaxially fixed with the driving pulley (731). The moving component (74) is located on the limiting rod (61). When the driven wheel (732) of the transmission belt (73) is connected to the moving component (74), the limiting component (60) abuts against the copper tube during the bending process. When the driven wheel (732) of the transmission belt (73) is not connected to the moving component (74), the limiting component (60) abuts against the copper tube, thereby positioning the copper tube before the extrusion block (50) extrudes it.

2. The automatic pipe bending equipment according to claim 1, characterized in that, The side wall of the molding block (30) is provided with an installation block (31) in the vertical direction, and the side wall of the fixing block (20) is provided with an installation groove (21). The top end of the installation groove (21) penetrates the top wall of the fixing block (20), and the installation block (31) is inserted into the installation groove (21) from the top end of the installation groove (21). The side wall of the extrusion block (50) is provided with an insertion block (51) in the vertical direction, and the side wall of the moving block (40) is provided with a slot (41). The top end of the slot (41) penetrates the top wall of the moving block (40), and the insertion block (51) is inserted into the slot (41) from the top end of the slot (41).

3. The automatic pipe bending equipment according to claim 1, characterized in that, The bottom of the fixed block (20) is fixed with a slider (22). The worktable (10) is provided with a groove (11) along the moving direction of the moving block (40). The slider (22) is inserted into the groove (11) and moves in the groove (11). The worktable (10) is provided with a fixing bolt (130). One end of the fixing bolt (130) is inserted into the groove (11) and abuts against the side wall of the slider (22).

4. The automatic pipe bending equipment according to claim 1, characterized in that, The moving component (74) includes: A sleeve (741) is sleeved on one end of the limiting rod (61) that extends out of the worktable (10). A sliding block (7411) is fixed on the inner wall of the sleeve (741). A moving groove (611) is provided on the side wall of the limiting rod (61) along the length direction of the limiting rod (61). The sliding block (7411) is inserted into the moving groove (611) and moves in the moving groove (611). The movable gear (742) is coaxially fixed on the sleeve (741). The driven wheel (732) has a toothed groove (7321) through it. The limiting rod (61) passes through the toothed groove (7321). When the movable gear (742) is inserted into the toothed groove (7321), the transmission belt (73) rotates to drive the movable gear (742) to rotate.

5. The automatic pipe bending equipment according to claim 1, characterized in that, The limiting plate (62) is provided with an adjusting component (80) for adjusting the distance between the copper tube and the limiting plate (62), the adjusting component (80) including: An adjusting plate (81) is provided on the side of the limiting plate (62) near the center of the limiting rod (61). An adjusting block (82) is connected to the adjusting plate (81) via an extension plate (811). An adjusting groove (621) is provided on the side wall of the limiting plate (62) along the length direction of the limiting rod (61). The adjusting block (82) is inserted into the adjusting groove (621) and moves in the adjusting groove (621). An adjusting rod (83) is provided, one end of which passes through the limiting plate (62) and is inserted into the adjusting groove (621), and the end of the adjusting rod (83) is rotatably connected to the inner wall of the adjusting groove (621). The adjusting rod (83) is arranged along the length direction of the limiting rod (61), and the adjusting rod (83) passes through the adjusting block (82) and is threadedly connected to the adjusting block (82).

6. The automatic pipe bending equipment according to claim 2, characterized in that, A support rod (140) is vertically fixed on the fixing block (20). A pressing plate (150) is sleeved on the support rod (140). The pressing plate (150) is used to abut the bottom wall of the copper tube against the worktable (10). A pressing spring (160) is sleeved on the support rod (140). The pressing spring (160) is used to push the pressing plate (150) towards the worktable (10).

7. The automatic pipe bending equipment according to claim 6, characterized in that, The workbench (10) is equipped with a fan (170), the output end of which is aligned between the forming block (30) and the extrusion block (50).

8. The automatic pipe bending equipment according to claim 7, characterized in that, The pressing plate (150) is provided with a cleaning component (90), which is used to clean the side of the forming block (30) and the extrusion block (50) that are close to each other. The cleaning component (90) includes: A sliding rod (91) is inserted on the pressing plate (150) and moves on the pressing plate (150). The sliding rod (91) is arranged along the length direction of the limiting rod (61). One end of the sliding rod (91) extends out of the pressing plate (150) and is fixed with a connecting rod (911) perpendicular to the sliding rod (91). Mounting rod (92), which is parallel to sliding rod (91), is rotatably connected to connecting rod (911). A rotating plate (921) perpendicular to mounting rod (92) is fixed on mounting rod (92). The rotating plate (921) moves to drive mounting rod (92) to rotate. A motor (180) is fixed on worktable (10). The output end of motor (180) is aligned between extrusion block (50) and forming block (30), and a circular roller (190) is coaxially fixed thereon. Several push rods (191) are evenly distributed on the circumferential sidewall of the circular roller (190). The push rods (191) abut against rotating plate (921) to push rotating plate (921) to move. A brush (93), covering the mounting rod (92), is used to clean the side where the forming block (30) and the extrusion block (50) are close to each other.

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