A kind of arc bending device for refrigerator compressor pipeline

Abstract

The present invention relates to the technical field of compressor pipeline processing, in particular to an arc-shaped bending device for refrigerator compressor pipeline, comprising a processing table, wherein a movable groove is provided on the processing table, a plurality of arc-shaped bending components and a plurality of concave matching blocks are arranged on the top of the movable groove, the arc-shaped bending components and the concave matching blocks are arranged in sequence, a first fixing frame is arranged at the bottom of the arc-shaped bending component, and a second fixing frame is arranged at the bottom of the concave matching block; the present invention enables the refrigerator compressor pipeline to perform multiple-stage U-turn bending in sequence through the coordinated movement and extrusion of the arc-shaped bending components and the concave matching blocks, thereby effectively improving the bending efficiency of the refrigerator compressor pipeline and reducing the auxiliary steps in the bending process.

Description

Technical Field

[0001] The invention relates to the technical field of compressor pipeline processing, and in particular to an arc-shaped bending device for a refrigerator compressor pipeline. Background Art

[0002] Pipe bending refers to the process of bending the pipe to change the transmission direction of the pipe. Bending can make the layout of the pipe more flexible and adapt to the changing construction environment. Common pipe bending processes include cold bending, hot bending, mechanical bending, sand filling bending, etc.

[0003] The patent document with publication number CN114472631A discloses a refrigerator compressor pipe arc bending machine, including a workbench, a fixing device and a bending device. The upper end surface of the workbench is provided with a fixing device and a bending device. An air pump is fixedly installed at the center position of the upper end surface of the workbench. An air outlet of the air pump is fixedly installed with a circular tube that is interconnected. A plurality of telescopic tubes that are interconnected are evenly fixedly installed on the circular tube. The upper end of the telescopic tube is rotatably connected to one end of the air bag.

[0004] In the prior art, when bending the refrigerator compressor pipeline, the pipeline is usually clamped by an I-wheel and a clamping block, and an arc-shaped bend is performed along the arc track of the I-wheel. When the refrigerator compressor pipeline is bent, it is usually necessary to perform multiple 180-degree U-turns to make the refrigerator compressor pipeline bend back and forth, thereby increasing the contact and heat dissipation area between the refrigerator compressor pipeline and the condenser. In the process of performing multiple U-turns on the refrigerator compressor pipeline, multiple bending operations are required, and the refrigerator compressor pipeline needs to be rotated after each bending so that the next bending can be performed, which affects the bending efficiency of the refrigerator compressor pipeline and increases the auxiliary steps in the bending process. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an arc bending device for a refrigerator compressor pipeline.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a refrigerator compressor pipe arc bending device, comprising a processing table, a movable groove is opened on the processing table, a plurality of arc surface bending components and a plurality of concave matching blocks are arranged on the top of the movable groove, the arc surface bending components and the concave matching blocks are arranged in sequence, a first fixing frame is arranged at the bottom of the arc surface bending component, a second fixing frame is arranged at the bottom of the concave matching block, the first fixing frame and the second fixing frame are both located inside the movable groove, the arc surface bending components and the concave matching blocks at both ends of the top of the movable groove are arranged one by one, and a relative moving mechanism is connected between the first fixing frame and the second fixing frame;

[0007] The arc surface bending assembly and the concave matching block are both provided with arc surface depressions for limiting the position of the pipeline on the side, two limiting rollers are provided on both sides above the movable groove, and the sides of the limiting rollers are both provided with arc surface depressions for limiting the position of the pipeline, and a matching moving mechanism is connected between two adjacent limiting rollers, and a high-pressure filling mechanism is connected to the processing table;

[0008] The mechanism for moving toward each other includes two connecting plates, which are respectively fixedly connected to two sides of the bottom of the processing table, and the bottoms of the arc bending assembly and the concave matching block arranged opposite to each other are fixedly connected with sliding blocks, and two sliding light rods are inserted between the two sliding blocks for common sliding movement, and the two ends of the sliding light rods are respectively fixedly connected to the corresponding connecting plates, and a second bidirectional lead screw is rotatably connected between the two connecting plates, and the bottoms of the sliding blocks are fixedly connected with a second connecting ring, and the second connecting rings are threadedly connected to the second bidirectional lead screw, and a second motor is fixedly installed on the connecting plate, and the output shaft of the second motor is fixedly connected to one end of the second bidirectional lead screw.

[0009] Preferably, the concave surface matching block is fixedly connected to the top of the corresponding second fixing frame, and the arc surface bending assembly comprises a rectangular block, a V-shaped arc surface block and two arc surface matching strips, the rectangular block is fixedly connected to the top of the corresponding first fixing frame, and the two arc surface matching strips are slidably connected to the two ends of one side of the rectangular block, and the V-shaped arc surface block is arranged between the arc surface ends of the two arc surface matching strips, and the arc surface matching strip is slidably connected to the inclined surface adjacent to the V-shaped arc surface block, and the arc surface end of the V-shaped arc surface block and the arc surface ends of the arc surface matching strips on both sides form a complete semicircular arc surface, and the V-shaped arc surface block is connected to a driving displacement mechanism.

[0010] Preferably, the driving displacement mechanism includes a connecting strip, a strip groove and a first hydraulic cylinder, the connecting strip is fixedly inserted inside the V-shaped arc block, the strip groove is opened on the corresponding first fixed frame, the bottom end of the connecting strip extends along the corresponding strip groove to the bottom of the first fixed frame and then fixedly connected to a limiting frame, both sides of the limiting frame are fixedly connected to limiting rings, a sliding pin is slidably inserted inside the limiting ring, the sliding pin is fixedly connected to the corresponding bottom of the first fixed frame, the first hydraulic cylinder is fixedly installed on the corresponding bottom of the first fixed frame, and the piston shaft of the first hydraulic cylinder is fixedly connected to the limiting frame.

[0011] Preferably, the cooperating moving mechanism includes two give way grooves, both of which are opened on the processing table and located on both sides of the movable groove, the inside of the give way grooves are slidably connected to two movable rings, the inside of the movable ring is fixedly connected to a rotating shaft, the limiting roller is rotatably connected to the top of the corresponding rotating shaft, the bottom of the movable ring is fixedly connected to a first connecting ring, the bottom of the processing table is rotatably connected to two first bidirectional screws, the first connecting ring is threadedly connected to the corresponding first bidirectional screw, and two first motors are fixedly installed on the bottom of the processing table, and the output shafts of the two first motors are respectively fixedly connected to one end of the corresponding first bidirectional screw.

[0012] Preferably, the high-pressure filling mechanism includes two strip mounting grooves, the two strip mounting grooves are opened at both ends of the processing table, the strip mounting grooves are fixedly connected to the inside of the strip frames, the strip frames are slidably connected to the inside of the sliding bars, the top of the sliding bars is fixedly connected to the mounting blocks, the mounting blocks are fixedly inserted with air intake pipes, two electric air pumps are fixedly connected to the top of the processing table, a hose is fixedly connected between the air outlet end of the electric air pump and the corresponding air intake pipe, two clamping blocks are arranged at the adjacent ends of the two mounting blocks, the clamping blocks are located on the side of the corresponding end of the air intake pipe, two second hydraulic cylinders are fixedly installed on the mounting blocks, and the piston shafts of the second hydraulic cylinders are fixedly connected to the corresponding clamping blocks.

[0013] Preferably, both ends of the bottom of the processing table are fixedly connected with fixed plates, and one side adjacent to the two fixed plates is provided with an extrusion plate, and two limit pins are fixedly connected to the extrusion plate, and the limit pins are slidably inserted on the corresponding fixed plates, and springs are sleeved on the limit pins, and the springs are fixedly connected between the corresponding fixed plates and the extrusion plates, and a stopper is fixedly connected to the bottom of the sliding bar.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Fill the refrigerator compressor pipeline with high-pressure gas through the high-pressure filling mechanism to prevent the refrigerator compressor pipeline from being squeezed and deformed during the multi-stage bending process, ensure the bending effect of the refrigerator compressor pipeline, and make the refrigerator compressor pipeline turn around and bend in multiple stages in sequence through the coordinated movement and extrusion of the arc bending component and the concave matching block, effectively improve the bending efficiency of the refrigerator compressor pipeline and reduce the auxiliary steps in the bending process.

[0016] 2. The arc surface matching strips on both sides and the inclined surfaces on both sides of the V-shaped arc surface block are connected by sliding, so that the arc surface matching strips on both sides are continuously approached along the sliding connection as the V-shaped arc surface block moves, and the arc surface matching strips and the rectangular block are prevented from being separated by the sliding connection. Therefore, in the process of the movement of the V-shaped arc surface block, the arc surface matching strips on both sides of the V-shaped arc surface block move in coordination and continuously approach each other, so that the refrigerator compressor pipeline is separated from the arc surface depression on the side of the arc surface matching strip, which is conducive to taking out the refrigerator compressor pipeline from the processing table after the bending process.

[0017] 3. The internal pressure at the bending position is increased by filling with internal high-pressure gas to reduce the collapse of the bending position of the refrigerator compressor pipeline. The sliding connection of the sliding bar and the bar frame, as well as the clamping and fixing of the connecting position of the air intake pipe and the refrigerator compressor pipeline by the clamping block, make the air intake pipe and the mounting block move synchronously with one end of the refrigerator compressor pipeline when both ends of the refrigerator compressor pipeline move toward the center position during the bending process, and keep the filling of high-pressure gas.

[0018] 4. When the adjacent ends of the two air inlet pipes are respectively inserted into the two ends of the refrigerator compressor pipeline, the two mounting blocks elastically squeeze the two ends of the refrigerator compressor pipeline respectively through the elastic stretching effect of the spring, so that the refrigerator compressor pipeline is located at the center of the processing table before multiple sections of reciprocating bending, ensuring that the reciprocating bending position of the refrigerator compressor pipeline is in the center section, thereby improving the accuracy of the bending position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first structural schematic diagram of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A;

[0021] Figure 3 For the present invention Figure 1 A schematic diagram of the structure at B in FIG.

[0022] Figure 4 It is a second structural schematic diagram of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at position C in FIG.

[0024] Figure 6 For the present invention Figure 4 A schematic diagram of the structure at D in FIG.

[0025] Figure 7 It is a schematic diagram of the matching structure of the arc surface bending assembly and the concave matching block of the present invention (the V-shaped arc surface block is in a moved state);

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the structure at position E in FIG.

[0027] Fig. 9 Another perspective of the matching structure of the arc surface bending assembly and the concave surface matching block of the present invention;

[0028] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the structure at F in FIG.

[0029] Fig.11 It is a schematic diagram of the matching structure of the sliding bar, the mounting block and the stopper of the present invention;

[0030] Fig.12 It is a schematic diagram of the bending structure of the refrigerator compressor pipeline of the present invention;

[0031] Fig.13 It is a schematic diagram of the matching structure of two connecting plates and two opposite sliding blocks of the present invention;

[0032] Fig.14 For the present invention Fig.13 Schematic diagram of the enlarged structure at G in FIG.

[0033] In the figure: 1, processing table; 2, movable groove; 301, first fixed frame; 302, second fixed frame; 4, arc bending assembly; 401, rectangular block; 402, V-shaped arc block; 403, arc matching strip; 5, concave matching block; 6, limit roller; 7, connecting strip; 8, strip groove; 9, first hydraulic cylinder; 10, limit frame; 11, limit ring; 12, sliding pin; 13, give way groove; 14, movable ring; 15, rotating shaft; 16, first connecting ring; 17, first double bidirectional lead screw; 18, first motor; 19, connecting plate; 1901, sliding block; 20, sliding rod; 21, second bidirectional lead screw; 22, second connecting ring; 23, second motor; 24, strip mounting groove; 25, strip frame; 26, sliding bar; 27, mounting block; 28, air intake pipe; 29, electric air pump; 30, hose; 31, clamping block; 32, second hydraulic cylinder; 33, fixing plate; 34, extrusion plate; 35, limit pin; 36, spring; 37, stop block. DETAILED DESCRIPTION

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0035] like Figures 1 to 14The arc bending device of a refrigerator compressor pipe shown in the figure comprises a processing table 1, a movable groove 2 is formed on the processing table 1, and a plurality of arc bending components 4 (such as Figure 7 As shown) and a plurality of concave matching blocks 5, the cambered bending assembly 4 and the concave matching blocks 5 are arranged in sequence, a first fixing frame 301 is arranged at the bottom of the cambered bending assembly 4, a second fixing frame 302 is arranged at the bottom of the concave matching block 5, the first fixing frame 301 and the second fixing frame 302 are both located inside the movable groove 2, the cambered bending assembly 4 and the concave matching blocks 5 located at both ends of the top of the movable groove 2 are arranged one by one, and a mechanism for moving toward each other is connected between the first fixing frame 301 and the second fixing frame 302 which are arranged oppositely;

[0036] The sides of the arc bending assembly 4 and the concave matching block 5 are provided with arc depressions for pipe limiting, two limiting rollers 6 are provided on both sides above the movable groove 2, and the sides of the limiting rollers 6 are provided with arc depressions for pipe limiting, and a matching moving mechanism is connected between two adjacent limiting rollers 6, and a high-pressure filling mechanism is connected to the processing table 1; when working, the prior art usually uses an I-shaped wheel and a clamping block to clamp the pipeline when bending the refrigerator compressor pipeline, and performs arc bending along the arc track of the I-shaped wheel. When the refrigerator compressor pipeline is bent, it is usually necessary to perform multiple 180-degree U-turns, so that the refrigerator compressor pipeline is reciprocatingly bent, thereby increasing the contact and heat dissipation area between the refrigerator compressor pipeline and the condenser. In the process of performing multiple U-turns and bending the refrigerator compressor pipeline, multiple bending operations are required, and the refrigerator compressor pipeline needs to be rotated after each bending so that the next bending can be performed, which affects the bending efficiency of the refrigerator compressor pipeline and increases the auxiliary steps in the bending process;The technical solution can solve the above problems. The specific working method is as follows: one end of the refrigerator compressor pipeline to be bent is moved between the two limiting rollers 6 at one end of the movable groove 2, and passes through the arc surface depression between the two limiting rollers 6, then passes through the arc surface depressions of multiple arc surface bending components 4, and then passes through the arc surface depressions of the other two limiting rollers 6, so that the two ends of the refrigerator compressor pipeline are respectively limited by the two adjacent limiting rollers 6, and then the first fixed frame 301 and the second fixed frame 302 at the center of the movable groove 2 are moved closer to each other through the action of the opposite moving mechanism, so that The corresponding arc-surface bending components 4 and concave matching blocks 5 move synchronously to perform the first extrusion bending on the center position of the refrigerator compressor pipeline, and then the first fixing frame 301 and the second fixing frame 302 which are relatively arranged are moved closer to each other from the center position to the outside through the action of the relative moving mechanism, so as to perform multiple extrusion bending, and the resistance and pipeline pressure generated in the bending process are reduced by the extrusion bending in sequence. During the movement of multiple arc-surface bending components 4, the contact position of the refrigerator compressor pipeline is subjected to arc-surface bending and extrusion, so that multiple positions on both sides of the refrigerator compressor pipeline are subjected to one hundred and eighty-two bending in sequence. The refrigerator compressor pipeline is subjected to a ten-degree U-turn and after the arc surface bending component 4 contacts the corresponding concave matching block 5, the multi-stage reciprocating bending of the refrigerator compressor pipeline is completed, and the arc surface bending position is limited at the arc surface depression on the side of the corresponding arc surface bending component 4 and the concave matching block 5, thereby ensuring the accuracy of the arc surface bending position of the refrigerator compressor pipeline. When the refrigerator compressor pipeline is subjected to a multi-stage arc surface U-turn, the two ends of the refrigerator compressor pipeline are respectively moved from between the corresponding two limiting rollers 6 toward the movable groove 2, and the clamping limit of the two limiting rollers 6 and the matching rotation generated by the contact between the limiting rollers 6 and the refrigerator compressor pipeline. , so that both ends of the refrigerator compressor pipeline are always kept in the center position of the reciprocating bend and wear is reduced. When the refrigerator compressor pipeline performs multiple-stage reciprocating U-turn bending, the high-pressure filling mechanism fills the refrigerator compressor pipeline with high-pressure gas to prevent the refrigerator compressor pipeline from being squeezed and deformed during the multiple-stage bending process, ensuring the bending effect of the refrigerator compressor pipeline. Through the coordinated movement and extrusion of the arc surface bending component 4 and the concave surface matching block 5, the refrigerator compressor pipeline performs multiple-stage U-turn bending in sequence, effectively improving the bending efficiency of the refrigerator compressor pipeline and reducing the auxiliary steps in the bending process. ;

[0037] As a further implementation scheme of the present invention, the concave surface matching block 5 is fixedly connected to the top of the corresponding second fixing frame 302, and the arc surface bending assembly 4 includes a rectangular block 401, a V-shaped arc surface block 402 and two arc surface matching strips 403. The rectangular block 401 is fixedly connected to the top of the corresponding first fixing frame 301. The two arc surface matching strips 403 are slidably connected to the two ends of one side of the rectangular block 401. The V-shaped arc surface block 402 is arranged between the arc surface ends of the two arc surface matching strips 403. The arc surface matching strips 403 and the V-shaped arc surface block 402 are adjacent to each other. The inclined surface is slidably connected, and the arc surface ends of the V-shaped arc surface block 402 and the arc surface ends of the arc surface matching strips 403 on both sides form a complete semicircular arc surface, and a driving displacement mechanism is connected to the V-shaped arc surface block 402; when working, the semicircular arc surface formed by the V-shaped arc surface block 402 and the arc surface matching strips 403 on both sides is used to perform arc surface extrusion and bending on the refrigerator compressor pipeline, and after the V-shaped arc surface block 402 and the arc surface matching strips 403 on both sides contact the corresponding concave matching block 5, the refrigerator compressor pipeline is limited in the arc surface depression used for pipeline limitation.

[0038] As a further embodiment of the present invention, the driving displacement mechanism includes a connecting bar 7, a strip groove 8 and a first hydraulic cylinder 9. The connecting bar 7 is fixedly inserted in the interior of the V-shaped arc surface block 402, and the strip groove 8 is opened on the corresponding first fixing frame 301 (such as Fig.10As shown in the figure, the bottom end of the connecting strip 7 extends along the corresponding strip groove 8 to the bottom of the first fixed frame 301 and is fixedly connected to the limiting frame 10. The limiting rings 11 are fixedly connected to the two sides of the limiting frame 10. The internal sliding pins 12 of the limiting rings 11 are inserted and slidably inserted. The sliding pins 12 are fixedly connected to the bottom of the corresponding first fixed frame 301. The first hydraulic cylinder 9 is fixedly installed at the bottom of the corresponding first fixed frame 301. The piston shaft of the first hydraulic cylinder 9 is fixedly connected to the limiting frame 10. When working, the first fixed frame 301 and the second fixed frame 302 arranged opposite to each other are brought close to each other through the action of the opposite moving mechanism, so that the arc bending assembly 4 and the concave matching block 5 perform arc-shaped U-turn bending on the refrigerator compressor pipeline, and after the bending, the first fixed frame 301 and the second fixed frame 302 return to the initial position. After the bending, part of the refrigerator compressor pipeline is still limited in the arc depression on the side of the arc matching strip 403, and the limiting frame is driven by the movement of the piston shaft of the first hydraulic cylinder 9. 10 moves, and the sliding pin 12 is inserted in the limiting ring 11 to slide and limit the limiting frame 10, the limiting frame 10 drives the connecting strip 7 to move inside the strip groove 8, and the connecting strip 7 drives the V-shaped arc surface block 402 to move synchronously and away from the corresponding rectangular block 401. During the movement of the V-shaped arc surface block 402, the arc surface matching strips 403 on both sides and the inclined surfaces on both sides of the V-shaped arc surface block 402 are slidably connected, so that the arc surface matching strips 403 on both sides are continuously approached along the sliding connection as the V-shaped arc surface block 402 moves, and the arc surface matching strips 403 and the rectangular block 401 are prevented from being separated from the rectangular block 401 through the sliding connection. Therefore, during the movement of the V-shaped arc surface block 402, the arc surface matching strips 403 on both sides of the V-shaped arc surface block 402 cooperate to move and continuously approach, so that the refrigerator compressor pipeline is separated from the arc surface depression on the side of the arc surface matching strip 403, which is conducive to taking out the refrigerator compressor pipeline from the processing table 1 after bending processing.

[0039] As a further embodiment of the present invention, the coordinated moving mechanism includes two give-way grooves 13, both of which are opened on the processing table 1 and located on both sides of the movable groove 2, and the inside of the give-way grooves 13 are slidably connected to two movable rings 14, and the inside of the movable ring 14 is fixedly connected to a rotating shaft 15, and a limiting roller 6 is rotatably connected to the top of the corresponding rotating shaft 15, and a first connecting ring 16 is fixedly connected to the bottom of the movable ring 14, and the bottom of the processing table 1 is rotatably connected to two first bidirectional lead screws 17, and the first connecting ring 16 is threadedly connected to the corresponding first bidirectional lead screw 17, and two first motors 18 are fixedly installed at the bottom of the processing table 1, and the output shafts of the two first motors 18 are respectively fixedly connected to one end of the corresponding first bidirectional lead screw 17; when working, the refrigerator compressor is made to rotate by the rotation connection between the limiting roller 6 and the rotating shaft 15. During the bending process of the pipeline, the pipeline moves between two adjacent limiting rollers 6, and during the movement, the limiting rollers 6 are rotated in coordination through the contact friction with the limiting rollers 6, and the two ends of the refrigerator compressor pipeline are always located in the middle position of the reciprocating U-turn bending. After the arc bending is completed, the corresponding first bidirectional lead screw 17 is driven to rotate synchronously through the rotation of the output shaft of the first motor 18, and the two movable rings 14 inside the yielding groove 13 are moved away from each other along the sliding connection through the threaded connection between the first bidirectional lead screw 17 and the corresponding two first connecting rings 16, thereby driving the corresponding rotating shaft 15 and the limiting rollers 6 to move synchronously, thereby releasing the limit of the refrigerator compressor pipeline by the arc surface depressions on the sides of the two limiting rollers 6, which is beneficial to the material removal of the refrigerator compressor pipeline after the bending process.

[0040] The mechanism for moving toward each other includes two connecting plates 19, which are respectively fixedly connected to the two sides of the bottom of the processing table 1, and the bottoms of the arc bending assembly 4 and the concave matching block 5 which are arranged opposite to each other are fixedly connected with sliding blocks 1901, and two sliding light rods 20 are inserted and slidably inserted between the two sliding blocks 1901, and the two ends of the sliding light rod 20 are respectively fixedly connected to the corresponding connecting plates 19, and a second bidirectional lead screw 21 is rotatably connected between the two connecting plates 19, and the bottoms of the sliding blocks 1901 are fixedly connected with a second connecting ring 22, and the second connecting ring 22 is threadedly connected to the second bidirectional lead screw 21, and a second motor 23 is fixedly installed on the connecting plate 19, and the output shaft of the second motor 23 is fixedly connected to one end of the second bidirectional lead screw 21; when working, the second motor 23 is driven by the output shaft of the second motor 23 to rotate. The lead screw 21 is rotated, and through the threaded connection of the second bidirectional lead screw 21 and the second connecting ring 22, the two sliding blocks 1901 are moved along the sliding joint of the sliding rod 20, so that the corresponding first fixing frame 301 and the second fixing frame 302 are close to each other, and the corresponding first fixing frame 301 and the second fixing frame 302 are respectively located at the two ends of the movable groove 2 and are arranged opposite to each other, so that the arc bending component 4 on the first fixing frame 301 and the concave matching block 5 on the second fixing frame 302 are moved, thereby performing multiple-section bending on the refrigerator compressor pipeline. When the output shaft of the second motor 23 rotates in the opposite direction, the two sliding blocks 1901 move away from each other, and the multiple second motors 23 work in sequence from the center position to both sides, so that the arc-shaped U-turn bending of the refrigerator compressor pipeline is performed in sequence from the center position to both ends.

[0041] As a further embodiment of the present invention, the high-pressure filling mechanism includes two strip-shaped mounting grooves 24, which are provided at both ends of the processing table 1, and the interiors of the strip-shaped mounting grooves 24 are fixedly connected with strip frames 25, and the interiors of the strip frames 25 are slidably connected with sliding bars 26 (such as Figure 5As shown in the figure, a mounting block 27 is fixedly connected to the top of the sliding bar 26, and an air inlet pipe 28 is fixedly inserted inside the mounting block 27. Two electric air pumps 29 are fixedly connected to the top of the processing table 1, and a hose 30 is fixedly connected between the air outlet end of the electric air pump 29 and the corresponding air inlet pipe 28. Two clamping blocks 31 are arranged at the adjacent ends of the two mounting blocks 27, and the clamping blocks 31 are located on the side of one end of the corresponding air inlet pipe 28. Two second hydraulic cylinders 32 are fixedly installed on the mounting blocks 27, and the piston shafts of the second hydraulic cylinders 32 are fixedly connected to the corresponding clamping blocks 31. When working, before the refrigerator compressor pipeline is curved, the adjacent ends of the two air inlet pipes 28 are respectively inserted into the two ends of the refrigerator compressor pipeline, and the clamping blocks 31 are driven to move by the piston shaft of the second hydraulic cylinder 32, so that the two adjacent clamping blocks 31 are pressed against the refrigerator. One end of the compressor pipeline is clamped and fixed, and then high-pressure gas is transported to the inside of the hose 30 through the air outlet end of the electric air pump 29, and enters the corresponding air inlet pipe 28 along the hose 30, and enters the refrigerator compressor pipeline along the air inlet pipe 28, so that the inside of the refrigerator compressor pipeline is kept filled with high-pressure gas, so that during the multi-section reciprocating bending process of the refrigerator compressor pipeline, the internal pressure at the bending position is increased by the internal high-pressure gas filling, and the collapse of the bending position of the refrigerator compressor pipeline is reduced. Through the sliding connection of the sliding bar 26 and the bar frame 25, and the clamping and fixing of the connecting position of the air inlet pipe 28 and the refrigerator compressor pipeline by the clamping block 31, when the two ends of the refrigerator compressor pipeline move toward the center position during the bending process, the air inlet pipe 28 and the mounting block 27 move synchronously with one end of the refrigerator compressor pipeline and keep the high-pressure gas filling.

[0042] As a further embodiment of the present invention, both ends of the bottom of the processing table 1 are fixedly connected to fixed plates 33, and the adjacent sides of the two fixed plates 33 are provided with extrusion plates 34, and two limit pins 35 are fixedly connected to the extrusion plates 34, and the limit pins 35 are slidably inserted on the corresponding fixed plates 33, and the limit pins 35 are sleeved with springs 36, and the springs 36 are fixedly connected between the corresponding fixed plates 33 and the extrusion plates 34, and the bottom of the sliding bar 26 is fixedly connected with a stopper 37 (such as Figure 5 and Fig.11As shown); during operation, before the adjacent ends of the two air inlet pipes 28 are respectively inserted into the two ends of the refrigerator compressor pipeline, the two sliding bars 26 are respectively moved away from each other along the corresponding strip frames 25 until the two mounting blocks 27 are respectively located at the two ends of the refrigerator compressor pipeline, and when the refrigerator compressor pipeline is located between the two mounting blocks 27, the stopper 37 at the bottom of the sliding bar 26 contacts the extrusion plate 34 and squeezes the extrusion plate 34, so that the limit pin 35 on the extrusion plate 34 moves along the sliding insertion part of the fixed plate 33, thereby causing the spring 36 to produce compression deformation, and when the adjacent ends of the two air inlet pipes 28 are respectively inserted into the two ends of the refrigerator compressor pipeline, the two mounting blocks 27 elastically squeeze the two ends of the refrigerator compressor pipeline respectively through the elastic stretching action of the spring 36, so that the refrigerator compressor pipeline is located at the center position of the processing table 1 before performing multiple sections of reciprocating bending, ensuring that the reciprocating bending position of the refrigerator compressor pipeline is in the center section, and improving the accuracy of the bending position.

[0043] Working principle of the present invention:

[0044] Move one end of the refrigerator compressor pipeline to be bent between the two limiting rollers 6 at one end of the movable groove 2, and pass through the arc surface depression between the two limiting rollers 6, then pass through the arc surface depressions of multiple arc surface bending components 4, and then pass through the arc surface depressions of the other two limiting rollers 6, so that the two ends of the refrigerator compressor pipeline are respectively limited by two adjacent limiting rollers 6, and then the first fixing frame 301 and the second fixing frame 302 at the center of the movable groove 2 are moved closer to each other through the action of the opposite moving mechanism, so that the corresponding arc surface bending component 4 and the concave matching block 5 are simultaneously The first fixing frame 301 and the second fixing frame 302 are moved step by step to perform the first extrusion bending on the center position of the refrigerator compressor pipeline, and then the first fixing frame 301 and the second fixing frame 302 are moved toward each other from the center position to the outside through the action of the relative moving mechanism, so as to perform multiple extrusion bending, and the resistance and pipeline pressure generated in the bending process are reduced in sequence through the extrusion bending. During the movement, the multiple arc bending components 4 perform arc bending and extrusion on the contact position of the refrigerator compressor pipeline, so that the multiple positions on both sides of the refrigerator compressor pipeline are bent 180 degrees in sequence, and the arc bending is performed on the contact position of the refrigerator compressor pipeline. After the bending assembly 4 contacts the relative concave matching block 5, the multi-stage reciprocating bending of the refrigerator compressor pipeline is completed, and the arc surface bending position is limited at the arc surface depression on the side of the corresponding arc surface bending assembly 4 and the concave matching block 5, so as to ensure the accuracy of the arc surface bending position of the refrigerator compressor pipeline. When the refrigerator compressor pipeline is subjected to multi-stage arc surface U-turn bending, the two ends of the refrigerator compressor pipeline are respectively moved from between the corresponding two limiting rollers 6 toward the movable groove 2, and the refrigerator compressor is clamped and limited by the two limiting rollers 6 and the matching rotation generated by the contact between the limiting rollers 6 and the refrigerator compressor pipeline. The two ends of the machine pipeline are always kept in the center position of the reciprocating bending and the wear is reduced. When the refrigerator compressor pipeline performs multiple-stage reciprocating U-turn bending, the high-pressure gas is filled into the refrigerator compressor pipeline through the high-pressure filling mechanism to prevent the refrigerator compressor pipeline from being squeezed and deformed during the multiple-stage bending process, thereby ensuring the bending effect of the refrigerator compressor pipeline. Through the coordinated movement and extrusion of the arc bending component 4 and the concave matching block 5, the refrigerator compressor pipeline performs multiple-stage U-turn bending in sequence, which effectively improves the bending efficiency of the refrigerator compressor pipeline and reduces the auxiliary steps in the bending process.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A refrigerator compressor pipe arc bending device, comprising a processing table (1), characterized in that: The processing table (1) is provided with a movable groove (2), and a plurality of arc-surface bending components (4) and a plurality of concave matching blocks (5) are arranged at the top of the movable groove (2). The arc-surface bending components (4) and the concave matching blocks (5) are arranged in sequence. A first fixing frame (301) is arranged at the bottom of the arc-surface bending component (4), and a second fixing frame (302) is arranged at the bottom of the concave matching block (5). The first fixing frame (301) and the second fixing frame (302) are both located inside the movable groove (2). The arc-surface bending components (4) and the concave matching blocks (5) at the two ends of the top of the movable groove (2) are arranged one by one. The first fixing frame (301) and the second fixing frame (302) are arranged relatively to each other. The frames (302) are connected with a mechanism for moving toward each other; the cambered surface bending assembly (4) and the concave surface matching block (5) are provided with cambered surface depressions for limiting the position of the pipeline on the sides; two limiting rollers (6) are provided on both sides above the movable groove (2); the cambered surface depressions for limiting the position of the pipeline on the sides of the limiting rollers (6); a matching moving mechanism is connected between two adjacent limiting rollers (6); and a high-pressure filling mechanism is connected to the processing table (1); the concave surface matching block (5) is fixedly connected to the top of the corresponding second fixed frame (302); the cambered surface bending assembly (4) comprises a rectangular block (401), a V-shaped cambered surface block (402) and two cambered surface matching strips (403); the rectangular block (401) is fixedly connected to the top of the ... and the V-shaped cambered surface block (402) and two cambered surface matching strips (403); and the V-shaped cambered surface block (402) and two cambered surface matching strips (403); and the V-shaped cambered surface block (401) is fixedly connected to the top of the second fixed frame (302); and the V-shaped cambered surface block (402) and two cambered surface matching strips The first fixing frame (301) is fixedly connected to the top of the corresponding first fixing frame (301), the two arc surface matching strips (403) are slidably connected to the two ends of one side of the rectangular block (401), the V-shaped arc surface block (402) is arranged between the arc surface ends of the two arc surface matching strips (403), the arc surface matching strip (403) is slidably connected to the inclined surface adjacent to the V-shaped arc surface block (402), the arc surface end of the V-shaped arc surface block (402) and the arc surface ends of the arc surface matching strips (403) on both sides form a complete semicircular arc surface, and the V-shaped arc surface block (402) is connected to a driving displacement mechanism; the driving displacement mechanism comprises a connecting strip (7), a strip groove (8) and a first hydraulic cylinder (9), and the connecting strip (7) is fixedly inserted in the Inside the V-shaped arc surface block (402), the strip groove (8) is opened on the corresponding first fixing frame (301), the bottom end of the connecting strip (7) extends along the corresponding strip groove (8) to the bottom of the first fixing frame (301) and is fixedly connected to the limiting frame (10), both sides of the limiting frame (10) are fixedly connected to the limiting ring (11), a sliding pin (12) is slidably inserted inside the limiting ring (11), and the sliding pin (12) is fixedly connected to the bottom of the corresponding first fixing frame (301), the first hydraulic cylinder (9) is fixedly installed at the bottom of the corresponding first fixing frame (301), and the piston shaft of the first hydraulic cylinder (9) is fixedly connected to the limiting frame (10).

2. The arc bending device for refrigerator compressor pipe according to claim 1, characterized in that: The matching moving mechanism comprises two clearance grooves (13), the two clearance grooves (13) are both opened on the processing table (1) and located on both sides of the movable groove (2), the inside of the clearance grooves (13) are slidably connected to two movable rings (14), the inside of the movable ring (14) is fixedly connected to a rotating shaft (15), the limiting roller (6) is rotatably connected to the top of the corresponding rotating shaft (15), the bottom of the movable ring (14) is fixedly connected to a first connecting ring (16), the bottom of the processing table (1) is rotatably connected to two first bidirectional lead screws (17), the first connecting ring (16) is threadedly connected to the corresponding first bidirectional lead screw (17), and the bottom of the processing table (1) is fixedly installed with two first motors (18), and the output shafts of the two first motors (18) are respectively fixedly connected to one end of the corresponding first bidirectional lead screw (17).

3. The arc bending device for refrigerator compressor pipe according to claim 1, characterized in that: The mechanism for moving toward each other comprises two connecting plates (19), the two connecting plates (19) are respectively fixedly connected to two sides of the bottom of the processing table (1), the bottoms of the arc surface bending assembly (4) and the concave surface matching block (5) arranged opposite to each other are both fixedly connected with sliding blocks (1901), two sliding light rods (20) are slidably inserted between the two sliding blocks (1901), the two ends of the sliding light rods (20) are respectively fixedly connected to the corresponding connecting plates (19), a second bidirectional lead screw (21) is rotatably connected between the two connecting plates (19), the bottoms of the sliding blocks (1901) are both fixedly connected with second connecting rings (22), the second connecting rings (22) are both threadedly connected to the second bidirectional lead screw (21), a second motor (23) is fixedly mounted on the connecting plate (19), and an output shaft of the second motor (23) is fixedly connected to one end of the second bidirectional lead screw (21).

4. The arc bending device for refrigerator compressor pipe according to claim 1, characterized in that: The high-pressure filling mechanism comprises two strip-shaped mounting grooves (24), the two strip-shaped mounting grooves (24) being arranged at two ends of the processing table (1), the interior of each of the strip-shaped mounting grooves (24) being fixedly connected to a strip frame (25), the interior of each of the strip-shaped mounting grooves (24) being slidably connected to a sliding bar (26), the top of each of the sliding bars (26) being fixedly connected to a mounting block (27), the interior of each of the mounting blocks (27) being fixedly inserted with an air intake pipe (28), the top of each of the processing table (1) being fixedly connected to two An electric air pump (29), a hose (30) is fixedly connected between the air outlet end of the electric air pump (29) and the corresponding air inlet pipe (28), two clamping blocks (31) are arranged at adjacent ends of the two mounting blocks (27), the clamping blocks (31) are located on the side of one end of the corresponding air inlet pipe (28), and two second hydraulic cylinders (32) are fixedly mounted on the mounting blocks (27), and the piston shafts of the second hydraulic cylinders (32) are fixedly connected to the corresponding clamping blocks (31).

5. The arc bending device for refrigerator compressor pipe according to claim 4, characterized in that: Both ends of the bottom of the processing table (1) are fixedly connected to fixed plates (33), and one side adjacent to the two fixed plates (33) is provided with an extrusion plate (34). Two limit pins (35) are fixedly connected to the extrusion plate (34), and the limit pins (35) are slidably inserted on the corresponding fixed plates (33). The limit pins (35) are sleeved with springs (36), and the springs (36) are fixedly connected between the corresponding fixed plates (33) and the extrusion plates (34). A stopper (37) is fixedly connected to the bottom of the sliding bar (26).

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