A pipe bending device for refrigeration fitting processing

Abstract

The application relates to the technical field of refrigeration accessory processing equipment, and discloses a pipe bending device for refrigeration accessory processing, which comprises a workbench, a feeding mechanism and a pipe bending mechanism are arranged on the workbench, the pipe bending mechanism comprises a frame body, a clamping mechanism and a bending mechanism are arranged in the frame body, the clamping mechanism comprises symmetrically-arranged clamping frames, the clamping frames move towards each other on the frame body, clamping wheels are rotationally arranged on the clamping frames, the bending mechanism comprises a driving part, a displacement part, a bending part and a limiting part, the driving part drives the bending part to rotate through the displacement part, the bending part comprises symmetrically-arranged shear rods, bending wheels are rotationally arranged at the top of the shear rods, when the bending part rotates, one of the shear rods serves as a rotating shaft, the bending wheels bend the pipe, and the displacement part and the limiting part are matched to switch the two shear rods to serve as the rotating shafts, the device integrates the functions of synchronous clamping, bidirectional bending and automatic switching of rotating shafts, and greatly improves the pipe bending efficiency and processing precision.

Description

Technical Field

[0001] This invention relates to the field of refrigeration component processing equipment technology, specifically to a pipe bending device for processing refrigeration components. Background Technology

[0002] In the production of refrigeration components, pipe bending is a key process that determines the product forming quality and production efficiency. Currently, commonly used pipe bending equipment in the industry generally adopts a single fixed shaft structure, which can only complete unidirectional, fixed radius pipe bending. When it is necessary to change the bending direction or adjust the bending radius, the machine must be stopped to replace the mold and recalibrate the shaft position. The operation process is cumbersome, the adjustment is time-consuming, and the equipment has a weak ability to adapt to different specifications of pipes.

[0003] Meanwhile, the existing equipment's pipe clamping and bending actions are independent of each other, making it difficult to achieve synchronous control. During processing, defects such as loose pipe clamping, bending position deviation, surface scratches, and plastic deformation are prone to occur, directly resulting in low bending accuracy and unstable yield, which cannot meet the processing requirements of refrigeration components for high-precision, multi-specification, and high-efficiency continuous pipe bending.

[0004] Currently, the market lacks dedicated tube bending devices for refrigeration components that integrate bidirectional bending, automatic shaft switching, and simultaneous clamping and bending positioning, making it difficult to achieve continuous and efficient automated tube bending operations. Therefore, developing a dedicated tube bending device that is highly adaptable, easy to adjust, integrates clamping and bending, and ensures stable forming accuracy and surface quality has become an urgent need in the refrigeration components processing field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned difficulties and provide a pipe bending device for processing refrigeration parts.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pipe bending device for processing refrigeration parts, comprising a worktable, a feeding mechanism and a pipe bending mechanism on the worktable, the feeding mechanism clamping the pipe and rotating and pushing the pipe to feed it to the pipe bending mechanism; the pipe bending mechanism comprising a frame, the frame containing a clamping mechanism and a bending mechanism; the clamping mechanism comprising symmetrically arranged clamping frames that move towards each other on the frame, and clamping wheels rotatably mounted on the clamping frames; the bending mechanism comprising a driving part, a displacement part, a bending part and a limiting part, the driving part driving the bending part to rotate through the displacement part, the bending part comprising symmetrically arranged shear bars, the top of the shear bars rotatably mounted with bending wheels, the pipe passing through the gap between the two bending wheels, the bending part rotating with one of the shear bars as the rotation axis, causing the bending wheel to bend the pipe, the displacement part and the limiting part cooperating to switch the two shear bars as the rotation axis.

[0007] As an improvement: the drive unit includes a hydraulic cylinder 2 and a drive rod. The hydraulic cylinder 2 drives the drive rod to move within the frame. The drive rod is equipped with a rack 2. The displacement unit includes a transmission table. The bottom outer side of the transmission table is equipped with a gear 2 that meshes with the rack 2. When the axis of the transmission table coincides with the axis of one of the shear bars, the shear bar acts as a rotation axis, and the transmission table drives the bending part to rotate.

[0008] As an improvement, the displacement unit also includes a hydraulic cylinder three, a displacement platform and a positioning groove platform. The output end of the hydraulic cylinder three is connected to the displacement platform. The displacement platform slides in the groove at the top of the positioning groove platform. The bottom of the transmission platform rotates in conjunction with the displacement platform. By moving the displacement platform, the gear two is switched to coincide with the axis of different shear bars, thereby switching different rotating shafts.

[0009] As an improvement: the bending section further includes a lower connecting plate and an upper connecting plate, two shear bars are fixed to the lower connecting plate and the upper connecting plate, and the top of the transmission table is slidably fitted with the lower connecting plate.

[0010] As an improvement: the limiting part includes a limiting platform and a clamping block. The limiting platform is fixed in the frame body. The limiting platform is symmetrically provided with a rotation groove and a limiting groove. The clamping block is movably disposed between the two rotation grooves. The rotation groove is provided with a clamping groove. A sleeve is rotatably provided on the outside of the shear bar. The rotation groove and the clamping groove cooperate to clamp one of the sleeves. During the bending operation, the other shear bar rotates to the limiting groove at the opposite position.

[0011] As an improvement, the clamping mechanism further includes a linkage mechanism and a fixed platform. The linkage mechanism includes a hydraulic cylinder and a linkage frame. The linkage frame synchronously drives the clamping block and the clamping frame to move. The fixed platform is fixed in the frame body to guide the movement of the clamping frame.

[0012] As an improvement: the clamping frame includes a frame, multiple clamping wheels are rotatably mounted on the frame, columns are respectively provided on both sides of the bottom of the frame, a movable platform is provided at the bottom of the column, a guide groove is provided on the fixed platform, the columns on the two clamping frames are arranged inside and outside, the movable platform is slidably mounted on the guide groove, a gear is rotatably mounted on the fixed platform, a rack is provided on one side of the movable platform, the gear meshes with the racks of the two clamping frames respectively, a baffle is provided at the bottom of the movable platform, and a spring connected to the fixed platform is provided on the baffle.

[0013] As an improvement: the linkage frame is a U-shaped frame, one end of the linkage frame is connected to the clamping block, and the other end is provided with two upright plates. The two frames are located between the two upright plates, and the upright plates push the clamping frame to move.

[0014] The advantages of this invention compared to existing technologies are as follows: This device integrates automatic feeding, synchronous clamping, bidirectional bending, and automatic shaft switching functions, enabling bidirectional bending at different positions. This eliminates frequent mold changes and downtime for adjustments, significantly improving bending efficiency and processing accuracy. It effectively solves problems such as the single bending direction, cumbersome adjustments, and easy deformation of pipes in traditional equipment. Specific advantages are as follows:

[0015] 1. The bending section can automatically switch between two shear bars as bending rotation axes through the cooperation of the displacement section and the limiting section, which can realize bidirectional bending and easily meet the processing needs of multi-specification and multi-angle serpentine refrigeration pipes. It does not require frequent mold changes and greatly improves the versatility of the equipment.

[0016] 2. The clamping mechanism and the limiting part adopt an integrated linkage structure, which is driven by the same power source to synchronously drive the pipe clamping and the shaft locking action, effectively avoiding the loosening and displacement of the pipe during processing, ensuring accurate bending position and stable angle, and significantly improving the pipe bending accuracy;

[0017] 3. Both the clamping wheel and the bending wheel adopt a freely rotating structure. During the bending process, they roll and rub against the pipe, which greatly reduces the risk of scratches, indentations and deformation, improves the surface finish and pass rate of the finished product, and reduces defective products and rework.

[0018] 4. When used with an automatic feeding mechanism, the pipes are automatically fed, rotated and positioned. The entire process of feeding, clamping, bending and reversing is completed continuously and automatically, reducing manual intervention and downtime. The processing capacity per unit time is higher, making it suitable for large-scale continuous production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the pipe bending mechanism of the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the pipe bending mechanism of the present invention.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention.

[0023] Figure 5 This is an exploded view of the clamping mechanism of the present invention.

[0024] Figure 6 This is a schematic diagram of the clamping frame of the present invention.

[0025] Figure 7 This is a schematic diagram of the bending mechanism of the present invention.

[0026] Figure 8 The explosion of the bending mechanism of this invention Figure 1 .

[0027] Figure 9 The explosion of the bending mechanism of this invention Figure 2 .

[0028] Figure 10 This is a cross-sectional view of the bending mechanism of the present invention.

[0029] Figure 11 This is a schematic diagram of the limiting part of the present invention.

[0030] Figure 12 This is a schematic diagram of the movement of the shear bar of the present invention.

[0031] As shown in the figure: 1. Workbench; 2. Feeding mechanism; 3. Pipe bending mechanism; 4. Frame; 5. Clamping mechanism; 51. Linkage mechanism; 511. Hydraulic cylinder one; 512. Linkage frame; 513. Vertical plate; 52. Fixed platform; 521. Guide groove; 522. Gear one; 53. Clamping frame; 531. Frame; 532. Abutment; 533. Column; 534. Moving platform; 535. Rack one; 536. Baffle; 537. Spring; 54. Clamping wheel; 6. Bending mechanism; 61. Drive unit; 611 612. Hydraulic cylinder 2; 613. Drive rod; 614. Rack 2; 62. Positioning part; 625. Hydraulic cylinder 3; 626. Positioning platform; 627. Positioning slot platform; 628. Transmission platform; 629. Gear 2; 630. Bending part; 641. Lower connecting plate; 642. Shear bar; 643. Sleeve; 644. Upper connecting plate; 65. Bending wheel; 66. Limiting part; 671. Limiting platform; 682. Indexing slot; 693. Limiting slot; 604. Clamping block; 615. Clamping slot; 616. Connecting block. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 7 and attached Figure 9 As shown, a pipe bending device for processing refrigeration parts includes a worktable 1, on which a feeding mechanism 2 and a pipe bending mechanism 3 are provided. The feeding mechanism 2 clamps the pipe and rotates and pushes the pipe to feed it to the pipe bending mechanism 3. The pipe bending mechanism 3 includes a frame 4, within which a clamping mechanism 5 and a bending mechanism 6 are provided. The clamping mechanism 5 includes symmetrically arranged clamping frames 53, which move towards each other on the frame 4. Clamping wheels 54 are rotatably mounted on the clamping frames 53. The bending mechanism 6 includes a drive unit 61. The unit comprises a displacement part 62, a bending part 63, and a limiting part 64. The driving part 61 drives the bending part 63 to rotate through the displacement part 62. The bending part 63 includes symmetrically arranged shear bars 632. A bending wheel 635 is rotatably provided at the top of the shear bar 632. The pipe passes through the gap between the two bending wheels 635. When the bending part 63 rotates, it uses one of the shear bars 632 as the rotation axis, so that the bending wheel 635 bends the pipe. The displacement part 62 and the limiting part 64 cooperate to switch the two shear bars 632 as the rotation axis.

[0034] This device effectively solves the problems of traditional refrigeration pipe bending equipment having a single bending direction and low bending efficiency for serpentine refrigeration pipes. For common serpentine refrigeration pipe processing, it is designed with two rotating shafts, significantly improving the bending efficiency through alternating bending operations. During operation, the feeding mechanism 2 clamps and pushes the pipe to be processed to the bending mechanism 3. The symmetrical clamping frames 53 of the clamping mechanism 5 move towards each other on the frame 4, and the clamping wheels 54 stably clamp the pipe. The limiting part 64 and the displacement part 62 of the bending mechanism 6 cooperate to lock one shear bar 632 as the bending rotating shaft, while the other shear bar 632 is dynamically limited. Subsequently, the drive unit 61 drives the bending process through the displacement part 62. The entire section 63 rotates, with the bending section 63 rotating around the locked shear bar 632. The bending wheels 635 at the top of the two shear bars 632 work together to squeeze and drive the pipe to bend around the axis, completing the unidirectional bending operation. When it is necessary to switch the bending direction, the displacement section 62 drives the bending section 63 to move, the limiting section 64 releases the original rotating shaft lock and fixes the other shear bar 632 as the new rotating shaft, and the driving section 61 drives the bending section 63 to rotate again to achieve reverse bending. The clamping and rotating shaft switching are completed synchronously throughout the process. Both the bending wheel 635 and the clamping wheel 54 are rotating, which reduces friction damage to the pipe. The feeding, clamping, bending and reversing are carried out continuously and automatically, realizing efficient and stable pipe bending processing of refrigeration accessories.

[0035] Combined with appendix Figure 7 and attached Figure 8 As shown, the drive unit 61 includes a second hydraulic cylinder 611 and a drive rod 612. The second hydraulic cylinder 611 is fixed inside the frame 4, and the drive rod 612 is slidably disposed inside the frame 4. The output end of the second hydraulic cylinder 611 is connected to the drive rod 612. A second rack 613 is provided on the drive rod 612. The displacement unit 62 includes a transmission platform 624. A second gear 625 that meshes with the second rack 613 is provided on the outer side of the bottom of the transmission platform 624. When the axis of the transmission platform 624 coincides with the axis of one of the shear bars 632, the shear bar 632 serves as the rotation axis, and the transmission platform 624 drives the bending part 63 to rotate.

[0036] Combined with appendix Figure 2 and attached Figure 9 As shown, the bending part 63 also includes a lower connecting plate 631 and an upper connecting plate 634. Two shear bars 632 are fixed on the lower connecting plate 631 and the upper connecting plate 634. The upper connecting plate 634 is located on the top of the frame 4. The shear bars 632 pass through the through hole at the top of the frame 4. The top of the transmission table 624 is slidably engaged with the lower connecting plate 631.

[0037] When the drive unit 61 and the bending unit 63 are working, the hydraulic cylinder 611 is fixed inside the frame 4 to provide power, pushing the drive rod 612 to slide inside the frame 4. The rack 613 on the drive rod 612 moves linearly and meshes with the gear 625 on the outer side of the bottom of the transmission table 624, driving the gear 625 to rotate synchronously with the transmission table 624. The transmission table 624 then drives the bending unit 63 to rotate around a designated axis. The lower connecting plate 631 and the upper connecting plate 634 of the bending unit 63 firmly connect the two shear bars 632 into one unit. The upper connecting plate 634 is located at the top of the frame 4. The shear bars 632 move through the through hole at the top of the frame 4. The top of the transmission table 624 slides with the lower connecting plate 631, providing displacement guidance for the bending unit 63 when the displacement unit 62 adjusts the position of the rotating shaft, and at the same time smoothly transmitting the rotational torque, so that the bending wheel 635 makes a circular motion around the selected shear bar 632 to complete the bending action of the pipe.

[0038] Combined with appendix Figure 8 and attached Figure 9 As shown, the displacement unit 62 also includes a hydraulic cylinder 621, a displacement platform 622, and a positioning groove platform 623. The hydraulic cylinder 621 and the positioning groove platform 623 are fixed inside the frame 4. The output end of the hydraulic cylinder 621 is connected to the displacement platform 622. The displacement platform 622 and the top groove of the positioning groove platform 623 are slidably engaged. The bottom of the transmission platform 624 is rotatably engaged with the displacement platform 622. The displacement platform 622 moves and switches the gear 625 to coincide with the axis of different shear bars 632, thereby switching different rotating shafts.

[0039] When the displacement unit 62 is working, the hydraulic cylinder 621 outputs power to push the displacement table 622 to slide in a direction along the groove at the top of the positioning slot 623. This causes the transmission table 624, which rotates and engages with the bottom of the displacement table 622, to move horizontally in sync. The transmission table 624 then slides at the bottom of the lower connecting plate 631 until the gear 625 coincides with the axis of one of the shear bars 632. At this point, the transmission table 624 can drive the other shear bar 632 to rotate. The displacement unit 62, in conjunction with the limiting unit 64, completes the switching of the rotation axis between the two shear bars 632. The positioning slot 623 provides precise sliding guidance and positioning for the displacement table 622, ensuring accurate displacement and reliable operation of the transmission table 624 and the bending unit 63, and providing a stable support foundation for the rotation and bending of the bending unit 63.

[0040] Combined with appendix Figure 7 Appendix Figure 10 Appendix Figure 11 and attached Figure 12As shown, the limiting part 64 includes a limiting platform 641 and a clamping block 644. The limiting platform 641 is fixed inside the frame 4. The limiting platform 641 is symmetrically provided with a rotation groove 642 and a limiting groove 643. The axial distance between the two rotation grooves 642 is the same as the axial distance between the two shear bars 632. The clamping block 644 is movably disposed between the two rotation grooves 642. The rotation groove 642 is provided with a clamping groove 645. A sleeve 633 is rotatably provided on the outside of the shear bar 632. The rotation groove 642 and the clamping groove 645 cooperate to clamp one of the sleeves 633. During the bending operation, the other shear bar 632 rotates to the limiting groove 643 in the opposite position.

[0041] When the limiting part 64 is working, since the axial distance between the two indexing grooves 642 is the same as the axial distance between the two shear bars 632, the clamping block 644 moves between the two indexing grooves 642 and can cooperate with the clamping groove 645 on the indexing groove 642 to clamp and fix the sleeve 633 on the outside of one of the shear bars 632, so that the shear bar 632 becomes the rotating shaft of the bending operation. The other shear bar 632 rotates with the bending part 63 and enters the corresponding limiting groove 643. The limiting groove 643 provides limiting and guiding support. The sleeve 633 can rotate freely on the outside of the shear bar 632, which can ensure that the shear bar 632 rotates smoothly when it is used as a rotating shaft, and can remain stable when it is clamped and fixed, thereby realizing reliable locking of the rotating shaft and precise constraint of the bending action.

[0042] Combined with appendix Figure 2 Appendix Figure 4 and attached Figure 5 As shown, the clamping mechanism 5 also includes a linkage mechanism 51 and a fixed platform 52. The linkage mechanism 51 includes a hydraulic cylinder 511 and a linkage frame 512. The hydraulic cylinder 511 is fixed inside the frame 4, and the output end of the hydraulic cylinder 511 is connected to the linkage frame 512. The linkage frame 512 synchronously drives the clamping block 644 and the clamping frame 53 to move. The fixed platform 52 is fixed inside the frame 4 and guides the movement of the clamping frame 53.

[0043] When the clamping mechanism 5 is working, the hydraulic cylinder 511 is fixed inside the frame 4 to provide power. Its output end drives the linkage frame 512 to move. The linkage frame 512 synchronously drives the clamping block 644 and the clamping frame 53 to move together. The fixed platform 52 is fixed inside the frame 4 to provide stable guidance for the movement of the clamping frame 53, ensuring that the movement path of the clamping frame 53 is accurate. Through a set of power sources, the clamping of the pipe and the locking shear bar 632 are synchronized, so that the clamping positioning and the rotation shaft limit are coordinated and cooperated, improving the stability and bending accuracy of the pipe bending process.

[0044] Combined with appendix Figure 5 and attached Figure 6As shown, the clamping frame 53 includes a frame 531, multiple clamping wheels 54 rotatably mounted on the frame 531, columns 533 on both sides of the bottom of the frame 531, a movable platform 534 at the bottom of the column 533, a guide groove 521 on the fixed platform 52, the movable platform 534 slidingly mounted on the guide groove 521, the columns 533 on the two clamping frames 53 are arranged inside and outside, a gear 522 is rotatably mounted on the fixed platform 52, a rack 535 is mounted on one side of the movable platform 534, the gear 522 meshes with the rack 535 of the two clamping frames 53 respectively, a baffle 536 is mounted at the bottom of the movable platform 534, a spring 537 connected to the fixed platform 52 is mounted on the baffle 536, a stop block 532 is mounted on the front side of the frame 531, and the stop blocks 532 corresponding to the two frames 531 are in a limiting fit.

[0045] When the clamping frame 53 is working, the linkage mechanism 51 pushes the frame 531, causing the two frames 531 to tend to move towards each other. The column 533 at the bottom of the frame 531 drives the moving platform 534 to slide smoothly in the guide groove 521 of the fixed platform 52. The rack 535 on one side of the moving platform 534 moves synchronously with the moving platform 534 and meshes with the gear 522 on the fixed platform 52, so that the two clamping frames 53 keep moving towards each other synchronously and symmetrically, compressing the spring 537 to ensure that... The clamping wheels 54 on both sides clamp the pipe evenly. The spring 537 on the bottom baffle 536 of the moving platform 534 is connected to the fixed platform 52. After the hydraulic cylinder 511 releases the force, the abutment 532 does not contact the frame 531. At this time, the spring 537 pushes the clamping frame 53 to automatically return to the initial position through the baffle 536. The mutual limiting of the abutment 532 can prevent the two frames 531 from getting too close and causing excessive clamping force to damage the pipe, ensuring that the clamping process is stable, the force is moderate, and the action is synchronous and consistent.

[0046] Combined with appendix Figure 3 Appendix Figure 5 and attached Figure 8 As shown, the linkage frame 512 is a U-shaped frame. The rear side of the clamping block 644 is provided with a connecting block 646 that passes through the through hole of the limiting platform 641. One end of the linkage frame 512 is connected to the connecting block 646, and the other end is provided with two upright plates 513. Two frames 531 are located between the two upright plates 513. The upright plates 513 push the clamping frame 53 to move.

[0047] When the linkage frame 512 is working, the U-shaped linkage frame 512 moves as a whole under the drive of the hydraulic cylinder 511. One end of the linkage frame 512 drives the clamping block 644 to move along the through hole direction of the limiting platform 641 through the connecting block 646. The two vertical plates 513 at the other end simultaneously apply a pushing force to the two frames 531, so that the two frames 531 move symmetrically towards each other under the push of the vertical plates 513. One set of power can simultaneously complete the rotation shaft locking of the clamping block 644 and the pipe clamping action of the clamping frame 53, ensuring that the clamping and limiting actions are completely synchronized, improving the accuracy and stability of the pipe bending operation. When the clamping block 644 switches the rotation shaft, the movement direction is opposite. When the linkage frame 512 moves in opposite directions, the two vertical plates 513 on the linkage frame 512 will alternately push the frames 531 to move towards each other.

[0048] In practical implementation, the serpentine refrigeration tube is processed quickly by alternating the rotating shafts; the clamping wheel 54 on the clamping frame 53 and the bending wheel 635 on the bending part 63 can rotate freely, which can cooperate with the feeding mechanism 2 to push the tube and avoid scratching the tube; the shear bar 632 can rotate 180°, which can realize the 180° bending of the tube; when processing the disc-shaped refrigeration tube, the shear bar 632 is first rotated at a large angle, and then the shear bar 632 gradually rotates in the opposite direction during the process of the feeding mechanism 2 pushing the tube; the feeding mechanism 2 can clamp the tube and rotate it to change the bending direction of the tube.

[0049] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pipe bending device for processing refrigeration parts, comprising a worktable (1), wherein a feeding mechanism (2) and a pipe bending mechanism (3) are provided on the worktable (1), the feeding mechanism (2) clamps the pipe and rotates and pushes the pipe to feed it to the pipe bending mechanism (3), characterized in that: The pipe bending mechanism (3) includes a frame (4), and a clamping mechanism (5) and a bending mechanism (6) are provided inside the frame (4). The clamping mechanism (5) includes symmetrically arranged clamping frames (53), which move towards each other on the frame (4), and clamping wheels (54) are rotatably provided on the clamping frames (53). The bending mechanism (6) includes a driving part (61), a displacement part (62), a bending part (63), and a limiting part (64). The driving part (61) drives the bending part (63) to rotate through the displacement part (62). The bending part (63) includes symmetrically arranged shear bars (632). A bending wheel (635) is rotatably provided at the top of the shear bar (632). The pipe passes through the gap between the two bending wheels (635). When the bending part (63) rotates, it uses one of the shear bars (632) as the rotation axis, so that the bending wheel (635) bends the pipe. The displacement part (62) and the limiting part (64) cooperate to switch the two shear bars (632) as the rotation axis.

2. A tube bending apparatus for processing a refrigerant fitting according to claim 1, characterized in that: The drive unit (61) includes a hydraulic cylinder (611) and a drive rod (612). The hydraulic cylinder (611) drives the drive rod (612) to move within the frame (4). The drive rod (612) is provided with a rack (613). The displacement unit (62) includes a transmission table (624). The bottom outer side of the transmission table (624) is provided with a gear (625) that meshes with the rack (613). When the axis of the transmission table (624) coincides with the axis of one of the shear bars (632), the shear bar (632) acts as a rotating shaft, and the transmission table (624) drives the bending part (63) to rotate.

3. The pipe bending device for processing refrigeration components according to claim 2, characterized in that: The displacement unit (62) also includes a hydraulic cylinder three (621), a displacement platform (622), and a positioning groove platform (623). The output end of the hydraulic cylinder three (621) is connected to the displacement platform (622). The displacement platform (622) and the top groove of the positioning groove platform (623) are in sliding fit. The bottom of the transmission platform (624) is in rotational fit with the displacement platform (622). The displacement platform (622) moves and switches the gear two (625) to coincide with the axis of different shear bars (632), thereby switching different rotating shafts.

4. The pipe bending device for processing refrigeration components according to claim 2, characterized in that: The bending section (63) also includes a lower connecting plate (631) and an upper connecting plate (634), two shear bars (632) are fixed on the lower connecting plate (631) and the upper connecting plate (634), and the top of the transmission table (624) slides in cooperation with the lower connecting plate (631).

5. The pipe bending device for processing refrigeration components according to claim 1, characterized in that: The limiting part (64) includes a limiting platform (641) and a clamping block (644). The limiting platform (641) is fixed inside the frame (4). The limiting platform (641) is symmetrically provided with a rotation groove (642) and a limiting groove (643). The clamping block (644) is movably disposed between the two rotation grooves (642). The rotation groove (642) is provided with a clamping groove (645). A sleeve (633) is rotatably provided on the outside of the shear bar (632). The rotation groove (642) and the clamping groove (645) cooperate to clamp one of the sleeves (633). During the bending operation, the other shear bar (632) rotates to the limiting groove (643) at the opposite position.

6. The pipe bending device for processing refrigeration components according to claim 5, characterized in that: The clamping mechanism (5) also includes a linkage mechanism (51) and a fixed platform (52). The linkage mechanism (51) includes a hydraulic cylinder (511) and a linkage frame (512). The linkage frame (512) synchronously drives the clamping block (644) and the clamping frame (53) to move. The fixed platform (52) is fixed inside the frame (4) to guide the movement of the clamping frame (53).

7. A pipe bending device for processing refrigeration components according to claim 6, characterized in that: The clamping frame (53) includes a frame (531), multiple clamping wheels (54) are rotatably mounted on the frame (531), and columns (533) are respectively provided on both sides of the bottom of the frame (531). A movable platform (534) is provided at the bottom of the column (533), and a guide groove (521) is provided on the fixed platform (52). The movable platform (534) is slidably mounted on the guide groove (521). The columns (533) on the two clamping frames (53) are arranged inside and outside. A gear (522) is rotatably mounted on the fixed platform (52). A rack (535) is provided on one side of the movable platform (534). The gear (522) meshes with the rack (535) of the two clamping frames (53). A baffle (536) is provided at the bottom of the movable platform (534), and a spring (537) connected to the fixed platform (52) is provided on the baffle (536).

8. A pipe bending device for processing refrigeration components according to claim 7, characterized in that: The linkage frame (512) is a U-shaped frame. One end of the linkage frame (512) is connected to the clamping block (644), and the other end is provided with two upright plates (513). Two frames (531) are located between the two upright plates (513), and the upright plates (513) push the clamping frame (53) to move.

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