Machining equipment based on refrigeration compressor exhaust pipe production

Abstract

The invention relates to the technical field of refrigeration compressors, and particularly discloses processing equipment based on refrigeration compressor exhaust pipe production, which comprises a rack, a mounting plate is fixedly connected to the middle part of the top of the rack, a through hole for a pipe fitting to penetrate is formed in the mounting plate, and a fixing plate is fixedly connected to the right side of the top of the rack; an electric telescopic rod is fixedly connected to the right side of the fixing plate, an output shaft of the electric telescopic rod penetrates through the fixing plate and is provided with a pipe expanding assembly used for pipe expanding, a pipe cutting assembly used for cutting pipe fittings is arranged on the left side of the mounting plate, and a feeding assembly used for conveying the pipe fittings is arranged on the left side of the top of the rack; the pipe expanding assembly comprises a connecting pipe fixedly connected to the left side of an output shaft of the electric telescopic rod, through cooperation of the structures, an expanding head part of an expanded pipe can rotate, the outer side of an expanding head can make contact with different positions of the inner wall of a pipe fitting during pipe expanding, contact is more uniform during pipe expanding, and the flatness of a pipe opening after pipe expanding is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration compressors, and in particular to a processing device for producing exhaust pipes of refrigeration compressors. Background Art

[0002] In order to connect the exhaust pipe of a refrigeration compressor to the interface of the compressor, it is necessary to flare one end of it. During production, it is usually cut from a very long pipe into the required length, and then flaring processing is carried out on it.

[0003] The wall thickness of the exhaust pipe of a refrigeration compressor is relatively thin. When flaring the pipe, a tube expanding device can be used for tube expansion. When in use, by driving the movement of the shaft with an inclined outer wall on the tube expanding device, multiple inner inclined expanding heads move towards the direction of the pipe fitting, so that the multiple inner inclined expanding heads uniformly act on the inner wall of the pipe, so as to realize the tube expansion of the pipe orifice of the exhaust pipe of the refrigeration compressor;

[0004] However, in the actual tube expansion process, when multiple expanding heads move outwards, gaps will be generated between the multiple tube expanders, thus affecting the uniformity of tube expansion of the pipe fitting, and easily leading to the flatness at the pipe orifice after tube expansion, thereby affecting the quality of tube expansion. When the pipe fitting with uneven flaring is connected to the interface of the compressor, there will easily be gaps between the sleeved ends, further affecting the stability of the sleeve connection and the sealing effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a processing device for producing exhaust pipes of refrigeration compressors, which can make the expanding head part of the tube expansion rotate, so that during tube expansion, different parts of the outer side of the expanding head will contact the inner wall of the pipe fitting, making the contact during tube expansion more uniform, improving the flatness at the pipe orifice after tube expansion, so as to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A processing device based on the production of the exhaust pipe of a refrigeration compressor, including a frame. In the middle of the top of the frame, there is a fixed connection with a mounting plate. A through hole for inserting a pipe fitting is opened inside the mounting plate. On the right side of the top of the frame, there is a fixed connection with a fixing plate. On the right side of the fixing plate, there is a fixed connection with an electric telescopic rod. The output shaft of the electric telescopic rod passes through the fixing plate and is provided with an expanding pipe component for expanding the pipe. On the left side of the mounting plate, there is a pipe cutting component for cutting the pipe fitting. On the left side of the top of the frame, there is a feeding component for conveying the pipe fitting. The expanding pipe component includes a connecting pipe fixedly connected to the left side of the output shaft of the electric telescopic rod. A moving rod is slidably connected inside the connecting pipe. The left side of the moving rod is rotatably connected to a pressing rod. The left side of the connecting pipe is rotatably connected to a rotating sleeve. A swelling head is slidably connected in an annular array on the left side of the rotating sleeve. An external part for driving the rotating sleeve to rotate is provided on the outside of the rotating sleeve. A transmission component for moving the moving rod is provided inside the rotating sleeve.

[0007] Preferably, a small block is fixedly connected to the side of the swelling head close to the pressing rod. The left part of the pressing rod and the part of the small block close to the pressing rod are both inclined. A groove is opened on the outer side of the swelling head, and a hoop spring is fixedly connected to the outer wall of the groove.

[0008] Preferably, the driving part includes a small plate fixedly connected to the top of the connecting pipe. A motor is fixedly connected to the right side of the small plate. The output shaft of the motor passes through the small plate and is fixedly connected to a first gear. The driving part also includes a toothed ring fixedly connected to the outer wall of the rotating sleeve. The toothed ring meshes with the first gear.

[0009] Preferably, the transmission component includes an empty groove opened on the top of the moving rod. A rubber band is fixedly connected inside the empty groove. An extrusion plate is fixedly connected above the rubber band inside the empty groove. A limiting frame is fixedly connected to the top of the extrusion plate. A rotating shaft is rotatably connected to the top of the limiting frame. The bottom of the limiting frame is slidably connected to the moving rod. An annular groove is opened inside the rotating sleeve. The transmission component also includes an inclined block fixedly connected inside the annular groove. The transmission component also includes a first piston plate movably connected inside the moving rod. A small rod is fixedly connected to the right side of the first piston plate. The right end of the small rod passes through the moving rod and is fixedly connected to a connecting block. A circular groove is opened inside the connecting pipe. A partition plate is fixedly connected inside the circular groove. The connecting block is located on the left side of the partition plate in the circular groove.

[0010] Preferably, there are multiple inclined blocks, and the multiple inclined blocks are unevenly distributed inside the annular groove.

[0011] Preferably, a compensation component is jointly arranged inside and above the connecting pipe. The compensation component includes a lifting plate slidably connected to the left side of the small plate. A corrugated bladder is fixedly connected to the bottom of the lifting plate. The compensation component further includes a cam fixedly connected to the outer wall of the output shaft of the motor. The compensation component further includes a liquid tank fixedly connected to the top of the connecting pipe. A feed pipe is fixedly inserted between the liquid tank and the corrugated bladder. An addition pipe is fixedly inserted between the corrugated bladder and the circular groove on the right side of the partition plate.

[0012] Preferably, check valves are installed inside both the addition pipe and the feed pipe. A second piston plate is movably connected inside the circular groove between the partition plate and the bottom of the addition pipe. A connecting rod is fixedly connected between the left side of the second piston plate and the connecting block.

[0013] Preferably, a liquid return pipe is fixedly inserted between the inside of the liquid tank and the circular groove on the right side of the partition plate. An electromagnetic valve is fixedly installed inside the liquid return pipe.

[0014] Preferably, the feeding component includes a frame fixedly connected to the left side of the top of the rack. A rotating frame is rotatably connected inside the frame. A limiting groove is arranged inside the rotating frame. A rubber bladder is arranged inside the limiting groove.

[0015] Preferably, an airbag component for inflating and deflating is arranged outside the rubber bladder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the action of the pipe expanding component, the expanding head part for pipe expanding rotates, so that when expanding the pipe, the outer side of the expanding head will contact different parts of the inner wall of the pipe fitting, making the contact during pipe expansion more uniform, improving the flatness of the pipe orifice after pipe expansion, being beneficial to improving the quality of pipe expansion, and thus reducing the gap between the sleeved ends during subsequent connection;

[0018] 2. Through the action of the transmission component, the expansion and loosening can be alternated during pipe expansion. Continuous expansion and tightening may cause the expanding head to over-roll the surface of the pipe material, making the surface uneven. The pipe expansion method of alternating expansion and loosening is beneficial to further improving the flatness of the pipe orifice after pipe expansion and improving the quality of pipe expansion;

[0019] 3. Through the cooperation of the pipe expanding component and the transmission component, when the inclined block rotates with the rotating sleeve and moves away from the rotating shaft on the limiting frame, the expanding head can move away from the inner wall of the pipe fitting, reducing the wear on the inner wall of the pipe fitting and further improving the flatness of the pipe orifice after pipe expansion;

[0020] 4. Through the action of the compensation component, the distance between multiple expansion heads gradually increases. Such a design allows the pipe fitting material to have enough time to adapt to the deformation. At the beginning, the relatively low extrusion amount causes the material near the flaring part to undergo slight plastic deformation first. As the extrusion amount gradually increases, the deformation area expands towards the interior of the pipe fitting, and the deformation becomes more uniform, further improving the flatness of the pipe orifice after pipe expansion. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Overall structural view of the present invention;

[0023] Figure 2 Semi-sectional structural schematic diagram of the present invention;

[0024] Figure 3 Partial structural schematic diagram of the rotating sleeve of the present invention;

[0025] Figure 4 Partial structural schematic diagram of the driving part of the present invention;

[0026] Figure 5 Partial exploded structural schematic diagram of the expansion head of the present invention;

[0027] Figure 6 Semi-sectional structural schematic diagram of the rotating sleeve of the present invention;

[0028] Figure 7 Side sectional structural schematic diagram of the rotating sleeve of the present invention;

[0029] Figure 8 Semi-sectional structural schematic diagram of the connecting pipe of the present invention;

[0030] Figure 9 Side view structural schematic diagram of the frame of the present invention.

[0031] Description of the reference numerals:

[0032] 1. Frame; 2. Mounting plate; 3. Through hole; 4. Fixed plate; 5. Tube expanding assembly; 51. Connecting tube; 52. Extrusion rod; 53. Rotating sleeve; 54. Expanding head; 55. Driving part; 551. Small plate; 552. Motor; 553. First gear; 554. Tooth ring; 56. Small block; 57. Groove; 58. Stirrup spring; 59. Moving rod; 6. Pipe cutting assembly; 7. Feeding assembly; 71. Frame; 72. Rotating frame; 73. Limiting groove; 74. Rubber bladder; 75. Inflatable and deflatable airbag component; 8. Transmission assembly; 81. Empty groove; 82. Rubber belt; 83. Extrusion plate; 84. Limiting frame; 85. Rotating shaft; 86. Tilt block; 87. First piston plate; 88. Small rod; 89. Connecting block; 9. Compensation assembly; 91. Lifting plate; 92. Corrugated bladder; 93. Cam; 94. Liquid tank; 95. Inlet pipe; 96. Adding pipe; 97. Check valve; 98. Second piston plate; 99. Connecting rod; 910. Return liquid pipe; 911. Solenoid valve; 10. Electric telescopic rod; 11. Ring groove; 12. Circular groove; 13. Partition board. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 6, the present invention provides a technical solution: a processing device for the production of the exhaust pipe of a refrigeration compressor, including a frame 1. In the middle part of the top of the frame 1, a mounting plate 2 is fixedly connected. A through hole 3 for passing through the pipe fitting is opened inside the mounting plate 2. On the right side of the top of the frame 1, a fixed plate 4 is fixedly connected. On the right side of the fixed plate 4, an electric telescopic rod 10 is fixedly connected. The output shaft of the electric telescopic rod 10 passes through the fixed plate 4 and is provided with an expanding pipe assembly 5 for expanding the pipe. On the left side of the mounting plate 2, a pipe cutting assembly 6 for cutting the pipe fitting is provided. On the left side of the top of the frame 1, a feeding assembly 7 for conveying the pipe fitting is provided. The expanding pipe assembly 5 includes a connecting pipe 51 fixedly connected to the left side of the output shaft of the electric telescopic rod 10. A moving rod 59 is slidably connected inside the connecting pipe 59. The left side of the moving rod 59 is rotatably connected to a pressing rod 52. The left side of the connecting pipe 51 is rotatably connected to a rotating sleeve 53. A swelling head 54 is slidably connected in an annular array on the left side of the rotating sleeve 53. A driving part 55 for driving the rotating sleeve 53 to rotate is provided outside the rotating sleeve 53. A transmission assembly 8 for moving the moving rod 51 is provided inside the rotating sleeve 53. A small block 56 is fixedly connected to the side of the swelling head 54 close to the pressing rod 52. The left part of the pressing rod 52 and the part of the small block 56 close to the pressing rod 52 are both inclined. A groove 57 is opened on the outer side of the swelling head 54. A hoop spring 58 is fixedly connected to the outer wall of the groove 57. The driving part 55 includes a small plate 551 fixedly connected to the top of the connecting pipe 51. A motor 552 is fixedly connected to the right side of the small plate 551. The output shaft of the motor 552 passes through the small plate 551 and is fixedly connected to a first gear 553. The driving part 55 further includes a tooth ring 554 fixedly connected to the outer wall of the rotating sleeve 53. The tooth ring 554 meshes with the first gear 553.

[0035] By adopting the above technical solution, during preparation, the long pipe to be processed is passed through the inside of the through hole 3. During processing, the long pipe is conveyed by the feeding assembly 7 until the right part of the long pipe extending from the mounting plate 2 has a sufficient length. At this time, the output shaft of the electric telescopic rod 10 extends, so that the whole expanding pipe assembly 5 moves to the left until the left part of the swelling head 54 extends into the right side inside of the long pipe.

[0036] At this time, by rotating the output shaft of the motor 552, the first gear 553 can be rotated. Under the action of the meshing of the first gear 553 and the tooth ring 554, the tooth ring 554 can be rotated. At this time, the rotating sleeve 53 rotates accordingly. In this way, the rotating sleeve 53 can drive a plurality of swelling heads 54 to rotate. At the same time, under the action of the transmission assembly 8, while the rotating sleeve 53 rotates, the moving rod 59 can move along the left and right directions, so that the pressing rod 52 can move along the left and right directions. Since the left part of the pressing rod 52 gradually becomes thicker from left to right, when the pressing rod 52 moves to the left, it can squeeze the inclined surface of the small block 56, so that the small block 56 drives the swelling head 54 to move towards the pipe fitting against the elastic force of the hoop spring 58 to realize the expansion of the pipe orifice.

[0037] Such a design enables the expansion head 54 for tube expansion to rotate during tube expansion, so that during tube expansion, different parts of the outer side of the expansion head 54 will contact the inner wall of the pipe fitting, making the contact during tube expansion more uniform, improving the flatness of the pipe orifice after tube expansion, facilitating the improvement of the quality of tube expansion, and thus reducing the gap between the sleeved ends during subsequent connection.

[0038] After the tube expansion is completed, the output shaft of the electric telescopic rod 10 contracts, causing the entire tube expansion assembly 5 to move to the right. At this time, through the action of the pipe cutting assembly 6, the right part of the long pipe located on the right side of the mounting plate 2 can be cut. Subsequently, the long pipe can be conveyed through the feeding assembly 7 to process the next compressor exhaust pipe.

[0039] The pipe cutting assembly 6 uses a motor to drive a saw blade to rotate for cutting, and the hydraulic rod is used to control the lifting of the pipe cutting assembly 6. This part is a mature existing technology and will not be elaborated too much.

[0040] It should be noted that the device processes relatively thin copper pipe fittings, which are relatively thin and soft in texture and are easy to be flared. Moreover, the motor 552 uses a motor with a relatively large torque, which is sufficient to drive the flaring through its rotation.

[0041] Specifically, as Figures 2 to 7 shown, the transmission assembly 8 includes an empty slot 81 opened at the top of the moving rod 59. A rubber belt 82 is fixedly connected inside the empty slot 81. An extrusion plate 83 is fixedly connected above the rubber belt 82 inside the empty slot 81. A limiting frame 84 is fixedly connected to the top of the extrusion plate 83. A rotating shaft 85 is rotatably connected to the top of the limiting frame 84. The bottom of the limiting frame 84 is slidably connected to the moving rod 59. An annular groove 11 is opened inside the rotating sleeve 53. The transmission assembly 8 further includes an inclined block 86 fixedly connected inside the annular groove 11. The transmission assembly 8 further includes a first piston plate 87 movably connected inside the moving rod 59. The outer wall of the first piston plate 87 fits with the inside of the moving rod 59. A small rod 88 is fixedly connected to the right side of the first piston plate 87. The right end of the small rod 88 passes through the moving rod 59 and is fixedly connected to a connecting block 89. A circular groove 12 is opened inside the connecting pipe 51. A partition plate 13 is fixedly connected inside the circular groove 12. The connecting block 89 is located on the left side of the partition plate 13 in the circular groove 12.

[0042] When the small blocks 56 fixed to the left bottom of the multiple expansion heads 54 are located at the left part of the extrusion rod 52, the diameter of the outer arc thereof is smaller than the inner diameter of the long pipe. Hydraulic oil is filled on the left side of the first piston plate 87 inside the moving rod 59.

[0043] By adopting the above technical solution, when the output shaft of the motor 552 drives the rotating sleeve 53 to rotate, the inclined block 86 fixedly connected inside the annular groove 11 rotates. In the initial state when the inclined block 86 does not squeeze the rotating shaft 85 on the limiting frame 84, under the elastic force of the stirrup spring 58, the small block 56 fixed to the left bottom of the plurality of expansion heads 54 is located on the left part of the extrusion rod 52. At this time, the right side of the connecting block 89 just abuts against the partition plate 13, and at this time, the right side of the extrusion rod 52 just approaches the left side of the connecting block 89. At this time, under the action of the hydraulic oil inside the moving rod 59, the rubber belt 82 is in an expanded state.

[0044] When the inclined block 86 rotates with the rotating sleeve 53 and approaches the rotating shaft 85 on the limiting frame 84 and squeezes the rotating shaft 85, at this time, the rotating shaft 85 is squeezed, so that the rotating shaft 85, the limiting frame 84 and the extrusion plate 83 squeeze the rubber belt 82, causing the rubber belt 82 to deform. At this time, the pressure of the hydraulic oil inside the moving rod 59 increases, so that the moving rod 59 moves towards the left direction, thereby squeezing the inclined surface of the small block 56, so that the small block 56 drives the expansion head 54 to move towards the pipe fitting against the elastic force of the stirrup spring 58 to realize the expansion of the pipe orifice.

[0045] When the inclined block 86 rotates with the rotating sleeve 53 and moves away from the rotating shaft 85 on the limiting frame 84, under the elastic force of the stirrup spring 58, the rotating shaft 85, the limiting frame 84 and the extrusion plate 83 reset. And at this time, the plurality of expansion heads 54 approach each other, and the small block 56 is located on the left part of the extrusion rod 52. With the squeezing and moving away of the inclined block 86 from the rotating shaft 85, the loosening and expansion during pipe expansion can be alternated. Continuous expansion may cause the expansion head 54 to over-roll the surface of the pipe material, making the surface uneven. The pipe expansion method of alternating loosening and expansion is conducive to further improving the flatness of the pipe orifice after pipe expansion and improving the quality of pipe expansion.

[0046] And since the device adopts a rotating pipe expansion scheme, when the inclined block 86 rotates with the rotating sleeve 53 and moves away from the rotating shaft 85 on the limiting frame 84, the expansion head 54 can move away from the inner wall of the pipe fitting, reducing the wear on the inner wall of the pipe fitting and further improving the flatness of the pipe orifice after pipe expansion.

[0047] Specifically, as Figure 6 and Figure 7 shown, a plurality of inclined blocks 86 are provided, and the plurality of inclined blocks 86 are unevenly distributed inside the annular groove 11.

[0048] By adopting the above technical solution, when the expansion heads 54 move away from each other for pipe expansion, the rotating sleeve 53 and the expansion heads 54 are in a rotating state. Since the expansion heads 54 are evenly distributed, if the inclined blocks 86 are also evenly distributed, it may cause the positions where the expansion heads 54 contact the inner wall of the pipe fitting to be the same each time during pipe expansion. Therefore, in this solution, the inclined blocks 86 are unevenly distributed, which is conducive to the expansion heads 54 evenly squeezing different positions of the pipe fitting.

[0049] Specifically, as Figures 2 to 5 and Figure 8 shown, a compensation assembly 9 is jointly arranged inside and above the connecting pipe 51. The compensation assembly 9 includes a lifting plate 91 slidably connected to the left side of the small plate 551. A corrugated bladder 92 is fixedly connected to the bottom of the lifting plate 91. The compensation assembly 9 further includes a cam 93 fixedly connected to the outer wall of the output shaft of the motor 552. The compensation assembly 9 further includes a liquid tank 94 fixedly connected to the top of the connecting pipe 51. A feed pipe 95 is fixedly inserted between the liquid tank 94 and the corrugated bladder 92. A dosing pipe 96 is fixedly inserted between the corrugated bladder 92 and the circular groove 12 on the right side of the partition plate 13. Check valves 97 are installed inside both the feed pipe 95 and the dosing pipe 96. A second piston plate 98 is movably connected inside the circular groove 12 between the partition plate 13 and the bottom of the dosing pipe 96. A connecting rod 99 is fixedly connected between the left side of the second piston plate 98 and the connecting block 89. The connecting rod 99 slides with the partition plate 13. A return pipe 910 is fixedly inserted between the inside of the liquid tank 94 and the circular groove 12 on the right side of the partition plate 13. An electromagnetic valve 911 is fixedly installed inside the return pipe 910.

[0050] The electromagnetic valve 911 and its installation method are mature prior arts and will not be elaborated too much. During tube expansion, the electromagnetic valve 911 is closed. The installation method and principle of the check valve 97 are also prior arts and will not be elaborated too much. The check valve 97 in the feed pipe 95 only allows hydraulic oil to flow from the liquid tank 94 to the corrugated bladder 92, and the check valve 97 in the dosing pipe 96 only allows hydraulic oil to flow from the corrugated bladder 92 to the circular groove 12.

[0051] By adopting the above technical solution, when the output shaft of the motor 552 rotates, the cam 93 can be driven to rotate. When the protruding position of the cam 93 rotates close to the lifting plate 91, the lifting plate 91 can be squeezed, causing the lifting plate 91 to move downward, squeezing the corrugated bladder 92, so that the hydraulic oil inside the corrugated bladder 92 enters the circular groove 12 on the right side of the second piston plate 98 through the dosing pipe 96. At this time, the pressure inside the circular groove 12 on the right side of the second piston plate 98 increases, causing the second piston plate 98 to drive the connecting rod 99 to move to the left, and the connecting block 89 to move to the left. When the protruding position of the cam 93 rotates away from the lifting plate 91, under the action of the self-elastic force of the corrugated bladder 92, the corrugated bladder 92 expands, and the hydraulic oil in the liquid tank 94 enters the corrugated bladder 92. A spring can be fixedly connected between the lifting plate 91 and the small plate 551 to assist the expansion of the corrugated bladder 92.

[0052] It should be noted that at the beginning, the right side of the connecting block 89 is close to the partition plate 13. When the moving rod 59 moves to the left to separate the plurality of expanding heads 54, the expanding heads 54 can only slightly squeeze the pipe fittings.

[0053] As the number of times the cam 93 presses the lifting plate 91 increases, the hydraulic oil inside the circular groove 12 on the right side of the second piston plate 98 gradually increases, causing the distance between the partition plate 13 and the connecting block 89 to gradually increase. In this way, when the moving rod 59 moves to the left, the position of its left end gradually approaches the left side, enabling the multiple expansion heads 54 to move away from each other with an increasing distance. This design allows the pipe fitting material to have sufficient time to adapt to the deformation. At the beginning, the relatively low extrusion amount causes the material near the flaring part to undergo slight plastic deformation first. As the extrusion amount gradually increases, the deformation area expands towards the inside of the pipe fitting, and the deformation becomes more uniform, further improving the flatness of the pipe orifice after pipe expansion.

[0054] After the pipe expansion is completed, the external controller controls the solenoid valve 911 to open. Under the elastic force of the stirrup spring 58, the connecting block 89, the connecting rod 99, and the second piston plate 98 return to their initial states.

[0055] It should be noted that structures such as the extrusion plate 83, the limiting frame 84, the rotating shaft 85, the inclined block 86, the rotating sleeve 53, the small rod 88, the connecting rod 99, and the connecting block 89 are made of hard titanium alloy materials, making them not easily deformed or damaged during use and improving the service life of the equipment. The rubber belt 82 is made of rubber material with high mechanical strength.

[0056] Specifically, as Figure 1 、 Figure 2 and Figure 9 shown, the feeding assembly 7 includes a frame 71 fixedly connected to the left side of the top of the frame 1. A rotating frame 72 is rotatably connected inside the frame 71. A limiting groove 73 is provided inside the rotating frame 72. A rubber bladder 74 is provided inside the limiting groove 73. An airbag component 75 for inflating and deflating is provided outside the rubber bladder 74.

[0057] By adopting the above technical solution, during the preparation stage, before the long pipe penetrates through the through hole 3, the rubber bladder 74 is first deflated through the airbag component 75 for inflating and deflating. Subsequently, the long pipe is passed through the limiting groove 73 in the middle part between the two rotating frames 72 and then through the through hole 3. Then, the airbag component 75 for inflating and deflating inflates the rubber bladder 74, causing the rubber bladder 74 to tightly adhere to the pipe fitting. When transporting the pipe fitting, the two rotating frames 72 are controlled to rotate by the driving device provided outside, and the transportation is carried out through the friction between the rubber bladder 74 and the pipe fitting.

[0058] It should be noted that the airbag component 75 for inflating and deflating is a mature existing technology and will not be elaborated too much.

[0059] The component for driving the rotation of the rotating frame 72 is an existing technology. A motor can be used to drive the rotation of one of the rotating frames 72. Fixed gears can be provided at the ends of the two rotating frames 72 far from the motor, and the two gears at this position mesh with each other. This technology is an existing technology and will not be elaborated too much.

[0060] Working principle: When preparing, the rubber bladder 74 is deflated through the inflatable and deflatable airbag component 75. Subsequently, the long tube is passed through the limiting groove 73 in the middle part between the two rotating frames 72 and then through the through hole 3. Then, the inflatable and deflatable airbag component 75 inflates the rubber bladder 74 so that the rubber bladder 74 adheres tightly to the pipe fitting. The two rotating frames 72 are controlled to rotate by the externally arranged driving device, and the conveying is carried out through the friction existing between the rubber bladder 74 and the pipe fitting.

[0061] During processing, the output shaft of the electric telescopic rod 10 extends out, causing the entire expanding pipe assembly 5 to move to the left until the left part of the expanding head 54 extends into the right side interior of the long tube. The output shaft of the motor 552 rotates, and the rotating sleeve 53 rotates accordingly. Under the action of the transmission component 8, while the rotating sleeve 53 rotates, the moving rod 59 can move along the left - right direction, so that the extrusion rod 52 can move along the left - right direction. Since the left part of the extrusion rod 52 gradually becomes thicker from left to right, when the extrusion rod 52 moves to the left, it can extrude the inclined surface of the small block 56, so that the small block 56 drives the expanding head 54 to move towards the pipe fitting against the elastic force of the hoop spring 58 to realize the expansion of the pipe orifice. During the flaring process, the rotating sleeve 53 can drive multiple expanding heads 54 to rotate, and the outer sides of the expanding heads 54 will contact different parts of the inner wall of the pipe fitting, making the contact during pipe expansion more uniform, improving the flatness of the pipe orifice after pipe expansion, and being conducive to improving the quality of pipe expansion.

[0062] When the inclined block 86 rotates with the rotating sleeve 53 and approaches the rotating shaft 85 on the limiting frame 84 and extrudes the rotating shaft 85, at this time, the rotating shaft 85 is extruded, causing the rotating shaft 85, the limiting frame 84 and the extrusion plate 83 to extrude the rubber belt 82, deforming the rubber belt 82. At this time, the pressure of the hydraulic oil inside the moving rod 59 increases, so that the moving rod 59 moves towards the left direction, thus extruding the inclined surface of the small block 56, so that the small block 56 drives the expanding head 54 to move towards the pipe fitting against the elastic force of the hoop spring 58 to realize the expansion of the pipe orifice. When the inclined block 86 rotates with the rotating sleeve 53 and moves away from the rotating shaft 85 on the limiting frame 84, under the elastic force of the hoop spring 58, the rotating shaft 85, the limiting frame 84 and the extrusion plate 83 reset. And at this time, multiple expanding heads 54 approach each other, and the small block 56 is located at the left part of the extrusion rod 52. As the inclined block 86 extrudes and moves away from the rotating shaft 85, it can cause the alternation of loosening and expansion during pipe expansion. Continuous tightening may cause the expanding head 54 to over - roll the surface of the pipe material, making the surface uneven. The expanding pipe method of alternation of loosening and expansion is conducive to further improving the flatness of the pipe orifice after pipe expansion and is conducive to improving the quality of pipe expansion.

[0063] When the inclined block 86 rotates with the rotating sleeve 53 and moves away from the rotating shaft 85 on the limiting frame 84, the expanding head 54 can move away from the inner wall of the pipe fitting, reducing the wear on the inner wall of the pipe fitting and further improving the flatness of the pipe orifice after pipe expansion.

[0064] As the number of times the cam 93 presses the lifting plate 91 increases, the hydraulic oil inside the circular groove 12 on the right side of the second piston plate 98 gradually increases, causing the distance between the partition plate 13 and the connecting block 89 to gradually increase. In this way, when the moving rod 59 moves to the left, the position of its left end gradually approaches the left side, which can make the multiple expansion heads 54 move away from each other with an increasing distance. Such a design allows the pipe fitting material to have enough time to adapt to the deformation. At the beginning, the relatively low extrusion amount causes the material near the flaring part to first undergo slight plastic deformation. As the extrusion amount gradually increases, the deformation area expands towards the inside of the pipe fitting, and the deformation becomes more uniform, further improving the flatness of the pipe orifice after pipe expansion.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing device based on the production of refrigeration compressor exhaust pipes, comprising a frame (1), characterized in that: In the middle of the top of the frame (1), there is a fixed mounting plate (2). A through hole (3) for inserting a pipe fitting is provided inside the mounting plate (2). On the right side of the top of the frame (1), there is a fixed connection of a fixed plate (4). On the right side of the fixed plate (4), there is a fixed connection of an electric telescopic rod (10). The output shaft of the electric telescopic rod (10) passes through the fixed plate (4) and is provided with an expanding pipe component (5) for expanding the pipe. On the left side of the mounting plate (2), there is a pipe cutting component (6) for cutting the pipe fitting. On the left side of the top of the frame (1), there is a feeding component (7) for conveying the pipe fitting. The expanding pipe component (5) includes a connecting pipe (51) fixedly connected to the left side of the output shaft of the electric telescopic rod (10). A moving rod (59) is slidably connected inside the connecting pipe (59). The left side of the moving rod (59) is rotatably connected to a pressing rod (52). The left side of the connecting pipe (51) is rotatably connected to a rotating sleeve (53). An expansion head (54) is annularly and slidably connected to the left side of the rotating sleeve (53). An actuating part (55) for driving the rotation of the rotating sleeve (53) is provided outside the rotating sleeve (53). A transmission component (8) for moving the moving rod (51) is provided inside the rotating sleeve (53).

2. The processing equipment for producing a refrigeration compressor exhaust pipe according to claim 1, wherein: On the side of the expansion head (54) close to the pressing rod (52), there is a fixed connection of a small block (56). The left part of the pressing rod (52) and the part of the small block (56) close to the pressing rod (52) are both inclined. A groove (57) is provided on the outer side of the expansion head (54). The outer wall of the groove (57) is fixedly connected to a hoop spring (58).

3. The processing equipment for producing a refrigeration compressor exhaust pipe according to claim 1, characterized in that: The actuating part (55) includes a small plate (551) fixedly connected to the top of the connecting pipe (51). On the right side of the small plate (551), there is a fixed connection of a motor (552). The output shaft of the motor (552) passes through the small plate (551) and is fixedly connected to a first gear (553). The actuating part (55) also includes a toothed ring (554) fixedly connected to the outer wall of the rotating sleeve (53). The toothed ring (554) is engaged with the first gear (553).

4. The processing equipment for producing a refrigeration compressor exhaust pipe according to claim 1, characterized in that: The transmission assembly (8) includes an empty slot (81) opened at the top of the moving rod (59). A rubber belt (82) is fixedly connected inside the empty slot (81). An extrusion plate (83) is fixedly connected above the rubber belt (82) inside the empty slot (81). A restraint frame (84) is fixedly connected to the top of the extrusion plate (83). A rotating shaft (85) is rotatably connected to the top of the restraint frame (84). The bottom of the restraint frame (84) is slidably connected to the moving rod (59). An annular groove (11) is opened inside the rotating sleeve (53). The transmission assembly (8) further includes an inclined block (86) fixedly connected inside the annular groove (11). The transmission assembly (8) further includes a first piston plate (87) movably connected inside the moving rod (59). A small rod (88) is fixedly connected to the right side of the first piston plate (87). The right end of the small rod (88) passes through the moving rod (59) and is fixedly connected to a connecting block (89). A circular groove (12) is opened inside the connecting pipe (51). A partition plate (13) is fixedly connected inside the circular groove (12). The connecting block (89) is located on the left side of the partition plate (13) in the circular groove (12).

5. The processing equipment for producing a refrigeration compressor exhaust pipe according to claim 4, characterized in that: A plurality of the inclined blocks (86) are provided, and the plurality of inclined blocks (86) are unevenly distributed inside the annular groove (11).

6. The processing equipment for producing a refrigeration compressor exhaust pipe according to claim 1, characterized in that: A compensation assembly (9) is jointly arranged inside and above the connecting pipe (51). The compensation assembly (9) includes a lifting plate (91) slidably connected to the left side of the small plate (551). A corrugated bladder (92) is fixedly connected to the bottom of the lifting plate (91). The compensation assembly (9) further includes a cam (93) fixedly connected to the outer wall of the output shaft of the motor (552). The compensation assembly (9) further includes a liquid tank (94) fixedly connected to the top of the connecting pipe (51). A feed pipe (95) is fixedly inserted between the liquid tank (94) and the corrugated bladder (92). An adding pipe (96) is fixedly inserted between the corrugated bladder (92) and the right side of the partition plate (13) in the circular groove (12).

7. A processing device for the production of an exhaust pipe of a refrigeration compressor according to claim 6, characterized in that: Check valves (97) are installed inside both the adding pipe (96) and the feed pipe (95). A second piston plate (98) is movably connected between the partition plate (13) and the bottom of the adding pipe (96) inside the circular groove (12). A connecting rod (99) is fixedly connected between the left side of the second piston plate (98) and the connecting block (89).

8. A processing device for the production of an exhaust pipe of a refrigeration compressor according to claim 7, characterized in that: A return liquid pipe (910) is fixedly inserted between the inside of the liquid tank (94) and the right side of the partition plate (13) in the circular groove (12). An electromagnetic valve (911) is fixedly installed inside the return liquid pipe (910).

9. A processing device for the production of an exhaust pipe of a refrigeration compressor according to claim 1, characterized in that: The feeding assembly (7) includes a frame (71) fixedly connected to the left side of the top of the frame (1). A rotating frame (72) is rotatably connected inside the frame (71). A restraint groove (73) is arranged inside the rotating frame (72). A rubber bladder (74) is arranged inside the restraint groove (73).

10. A processing device based on the production of the exhaust pipe of a refrigeration compressor according to claim 9, characterized in that: An airbag component (75) for inflating and deflating is arranged outside the rubber bladder (74).

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