Air conditioning copper pipe bending forming equipment

Abstract

The application belongs to the field of air conditioner manufacturing, and discloses a copper pipe bending forming equipment for air conditioner, which comprises a rack, the rack is divided into an upper layer and a lower layer, the upper layer is provided with a straightening module and a cutting module, and the lower layer is provided with a taking module and a bending module; a discharging groove is arranged between the upper layer and the lower layer, the discharging groove is arranged obliquely, and the discharging groove is connected with the discharging side of the cutting module and the feeding side of the taking module; the discharging groove only allows a single pipe body to pass through in the axial direction in sequence, effectively prevents multiple pipe bodies from stacking or being stuck, ensures that only one pipe body enters the taking area of the lower layer at a time, breaks the traditional manual intervention mode of "cutting-transportation-feeding", realizes seamless connection between processes, significantly reduces the intermediate waiting time, improves the continuity and automation level of the overall operation of the equipment, and lays a foundation for building an unmanned production line.

Description

Technical Field

[0001] This invention belongs to the field of air conditioner manufacturing, and specifically relates to a copper tube bending and forming equipment for air conditioners. Background Technology

[0002] In the manufacturing process of air conditioning, refrigeration, and HVAC equipment, copper pipes are widely used as refrigerant transport pipelines due to their excellent thermal conductivity, ductility, corrosion resistance, and reliable connection performance, such as connecting key components like compressors, condensers, and evaporators. As air conditioning products become increasingly compact and energy efficiency requirements rise, internal piping layouts become more complex. Copper pipes often need to be bent and shaped at precise spatial coordinates from multiple angles, in multiple directions, and even in three dimensions to meet assembly space constraints and fluid dynamics performance requirements. However, existing pipe bending equipment faces the following technical bottlenecks and process defects in the actual production of air conditioning copper pipes:

[0003] Firstly, existing processing procedures generally divide key processes such as fixed-length cutting, straightening and feeding, and multi-station bending of copper tubes into different equipment or independent workstations, forming an "island-like" operation mode. Operators must first cut the entire roll of copper tube to a fixed length on a dedicated cutting machine, then manually transport the cut straight tube to the bending machine's operating area, and then manually complete the feeding, clamping, and positioning. After completing one bending action, if multiple bends need to be processed, the clamping position must be readjusted, and multiple clamping and positioning operations must be performed. This serial operation process of "cutting-transporting-clamping-bending-re-clamping" not only relies on a large amount of manpower and has a low degree of automation, but also has significant waiting and idle times between each process, resulting in a slow overall production cycle and low equipment utilization.

[0004] Secondly, due to the lack of integrated design from raw materials to finished product, existing equipment cannot achieve full automation of the entire process from copper tube uncoiling, straightening, fixed-length cutting to multi-angle continuous bending. In segmented processing mode, the copper tube needs to be repositioned and clamped for each bend. Frequent clamping operations not only significantly extend the processing cycle but also easily lead to problems such as bending angle deviation, inconsistent elbow spacing, and spatial coordinate offset due to factors such as fixture repetitive positioning errors and human operation deviations. Such errors have a cumulative effect in multi-bend fittings, directly affecting the geometric accuracy and assembly consistency of the final fitting. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a copper pipe bending and forming device for air conditioners, so as to solve the problems existing in the above-mentioned background art.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is a copper pipe bending and forming device for air conditioners, including a frame, which is divided into an upper layer and a lower layer. The upper layer has a straightening module and a cutting module, and the lower layer has a material picking module and a bending module. The pipe body passes through the straightening module, the cutting module, the material picking module and the bending module in sequence to realize the bending and forming operation. A feeding trough is provided between the upper layer and the lower layer. The feeding trough is inclined and connects the discharge side of the cutting module and the feed side of the material picking module. The feeding trough only allows a single pipe body to pass through sequentially along the axial direction. After the cutting module completes the fixed-length cutting of the pipe body, the pipe body enters the feeding trough one by one. Under the single-pipe limiting action of the feeding trough, the pipe bodies are automatically arranged after cutting, which facilitates the material picking module to grasp the pipe bodies.

[0007] Preferably, the bending module includes a rotating block and a fixed block; when the rotating block rotates, the bending operation of the tube body is realized under the action of the rotating block and the fixed block; a clamping block is provided on the rotating block, and both the clamping block and the rotating block have grooves, which are closed to form a cavity for fixing the tube body; the clamping block is raised and lowered on the rotating block, and by controlling the distance between the clamping block and the rotating block, the clamping block and the rotating block cooperate to realize the clamping function.

[0008] Furthermore, the fixing block is horizontally movable on the frame; during the bending operation, the fixing block is close to the rotating block to fix the tube to be bent; after the bending operation is performed, the fixing block is moved away from the rotating block so that after the clamping block and the rotating block release their fixation on the tube, the bent tube can be automatically unloaded.

[0009] Furthermore, the material handling module includes a material placement plate with a discharge trough for placing the tube. The length direction of the discharge trough is parallel to the width direction of the discharge trough, and the discharge trough and the discharge trough are adjacent to each other. The material placement plate is movably mounted on the frame, and the moving direction of the material placement plate is along the normal direction of the length direction of the discharge trough. When the material placement plate moves at the discharge end of the discharge trough, the tube rolls into the discharge trough under the action of gravity, realizing the automatic feeding of the material placement plate.

[0010] Furthermore, the material handling module includes a connecting plate and a material handling push rod. The connecting plate is provided with a connecting groove, the length direction of which is parallel to the length direction of the feeding groove. The connecting plate is fixedly mounted on the frame, and the material handling push rod can move along the length direction of the connecting groove. When the feeding plate completes the feeding and the feeding groove and the connecting groove are connected, the material handling push rod is activated to move the tube from the feeding groove to the connecting groove.

[0011] Furthermore, when the connecting groove and the recess are connected, the tube located on the feeding groove moves to the recess through the connecting groove under the action of the feeding top rod, thereby realizing the automatic feeding of the bending module.

[0012] Furthermore, the lower layer includes a transfer module and a pusher module located between the material taking module and the bending module. The transfer module and the pusher module are respectively equipped with a transfer clamp and a pusher clamp. The transfer clamp is located at the end of the material discharge groove. Under the action of the material taking top rod, the tube moves to the transfer clamp via the connecting groove. The transfer clamp then moves the tube into the cavity of the bending module via the pusher clamp.

[0013] Furthermore, the transfer fixture and the pusher fixture each have a first clamping cavity and a second clamping cavity, both of which are adapted to the shape of the tube body. The length direction of the first clamping cavity coincides with the length direction of the groove. One end of the first clamping cavity facing the groove is open, and the other end of the first clamping cavity is closed. When the tube body is pushed towards the transfer fixture, the open end of the first clamping cavity facilitates the entry of the tube body, and the closed end of the first clamping cavity can perform end face positioning of the tube body.

[0014] Furthermore, the first clamping cavity and the second clamping cavity are arranged in parallel, the second clamping cavity and the tube cavity are arranged coaxially, both ends of the second clamping cavity are open, and a push rod is provided at the end of the second clamping cavity away from the tube cavity; when the tube body moves onto the pusher clamp, the push rod is activated to move the tube body into the tube cavity; under the end face positioning of the closed end of the first clamping cavity and the coaxial arrangement of the second clamping cavity and the tube cavity, the precise positioning of the tube body moving into the tube cavity is achieved.

[0015] Furthermore, both the transfer clamp and the pusher clamp include a fixing component and a moving component, which enable the opening and closing functions of the transfer clamp and the pusher clamp under the action of the fixing component and the moving component; both ends of the transfer clamp and the pusher clamp are respectively a control end and an open end, and the control ends of the transfer clamp and the pusher clamp are far apart from each other, so that the tube body can move between the transfer clamp and the pusher clamp.

[0016] The main technical effects of this invention are reflected in the following aspects:

[0017] This invention places the straightening and cutting modules on the upper layer of the frame. After straightening and cutting the copper tubes to a fixed length, a tilted feeding trough allows the cut tubes to slide down under gravity. This feeding trough has a single-tube limiting structure, allowing only tubes to pass through one by one along the axial direction, effectively preventing multiple tubes from stacking or getting stuck, ensuring that only one tube enters the lower picking area at a time. This breaks the traditional manual intervention mode of "cutting-handling-loading," achieving seamless connection between processes, significantly reducing intermediate waiting time, improving the overall continuity and automation level of the equipment, and laying the foundation for building an unmanned production line.

[0018] This invention features a laterally movable feeding plate with a feeding trough that aligns with the outlet of the discharge trough. This allows the cut tube to automatically roll into the feeding trough under gravity for initial positioning. Subsequently, the feeding plate moves to align the feeding trough with a connecting groove on a fixed connecting plate. A material-retrieving push rod then advances along the connecting groove, pushing the tube onto the feeding path of the bending module. This process requires no robotic arm or manual intervention, is simple and reliable, reduces equipment complexity and cost, and ensures consistent feeding each time through standardized propulsion strokes, improving system stability and cycle efficiency.

[0019] This invention adds a transfer module and a pushing module between the material handling and bending processes. The first clamping cavity of the transfer fixture features a closed-end design, allowing the end face of the tube to naturally abut against the closed end when pushed in, achieving precise axial end face positioning. The second clamping cavity of the pushing fixture is coaxially aligned with the tube cavity of the bending module, ensuring radial alignment during the pushing process. The pushing rod pushes the tube out of the transfer fixture and precisely feeds it into the tube cavity of the bending module via the second clamping cavity. This two-stage positioning mechanism effectively eliminates cumulative errors caused by pushing errors, fixture repetitive positioning deviations, or human operation. It is particularly suitable for processing air conditioning copper tubes with multiple bends and high precision requirements, significantly improving the consistency of product geometry and assembly reliability. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 for Figure 1Structural diagram of the mid-frame;

[0022] Figure 3 for Figure 1 Structural diagram of the material handling module;

[0023] Figure 4 for Figure 1 Structural diagram of the middle pusher module;

[0024] Figure 5 for Figure 1 Structure diagram of the transfer module;

[0025] Figure 6 for Figure 1 Structural diagram of the bending module;

[0026] In the diagram: 1. Frame; 11. Upper layer; 12. Lower layer; 2. Straightening module; 3. Cutting module; 31. Feeding trough; 4. Picking module; 41. Feeding plate; 42. Feeding trough; 43. Connecting plate; 44. Connecting groove; 45. Picking rod; 5. Transfer module; 51. Transfer fixture; 52. First clamping cavity; 6. Pushing module; 61. Pushing fixture; 62. Second clamping cavity; 63. Pushing rod; 64. Fixing component; 65. Moving component; 7. Bending module; 71. Rotating block; 72. Fixing block; 73. Clamping block; 74. Cavity. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. In the embodiments, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art, etc., and therefore will not be described in detail in this embodiment.

[0028] The copper pipe bending and forming equipment for air conditioners provided by this invention is mainly used in the automated production process of cutting copper pipes to a fixed length and bending them at multiple angles during the manufacturing of air conditioning, refrigeration, and HVAC equipment. It is particularly suitable for processing refrigeration circulation system pipes for compact and complex products such as household air conditioners and commercial central air conditioners. However, it is not limited to this and can also be used in other similar or identical production processes, such as the forming of metal pipes in refrigerators, heat pump water heaters, and automotive air conditioning systems, as well as in the manufacturing of hydraulic systems, instrument pipes, and lighting fixture structural components, where straightening, fixed-length cutting, and spatial bending of slender metal pipes such as copper, aluminum, and stainless steel are required. It has broad industrial applicability and technological extensibility.

[0029] Furthermore, as is common knowledge in this industry, the driving methods for components mentioned above, such as the straightening module 2, cutting module 3, material picking rod 45, material pushing rod 63, lifting mechanism of clamping block 73, rotation drive mechanism of rotating block 71, horizontal movement mechanism of fixed block 72, moving mechanism of material placing plate 41, and opening and closing mechanisms of transfer fixture 51 and pushing fixture 61, can all be implemented using conventional drive units in this field. For example, pneumatic cylinders, hydraulic cylinders, servo motors with lead screw and nut mechanisms, stepper motors, linear motors, or cam mechanisms are all common driving means used to achieve linear reciprocating motion, lifting motion, rotational motion, and clamping actions. These drive elements, in conjunction with corresponding guide rails, sliders, connecting rods, gears, and other transmission components, constitute a complete actuator. Their control logic can be programmed and coordinated through a PLC or CNC system to meet the timing requirements of each process.

[0030] Example 1

[0031] This embodiment discloses a copper pipe bending and forming equipment for air conditioners, aiming to achieve a continuous and automated processing flow from copper pipe straightening and fixed-length cutting to bending and forming. See also... Figure 1 , Figure 2 The system includes a frame 1, which is divided into an upper layer 11 and a lower layer 12 to optimize spatial layout and improve the connection efficiency between various functional modules. The upper layer 11 has a straightening module 2 and a cutting module 3. When a roll of copper tube raw material is fed into the equipment, the straightening module 2 first straightens the copper tube to eliminate bending deformation caused by winding, ensuring subsequent processing accuracy. After straightening, the copper tube enters the cutting module 3, where it is precisely cut to a fixed length to form a single tube body of the required length. The lower layer 12 has a material handling module 4 and a bending module 7, used for automatically gripping and bending the cut tube body at multiple angles. To facilitate material transfer between the upper and lower layers 12, the tube body sequentially passes through the straightening module 2, the cutting module 3, the material handling module 4, and the bending module 7 to achieve bending and forming operations.

[0032] See Figure 2 A feeding trough 31 is provided between the upper layer 11 and the lower layer 12. The feeding trough 31 is inclined and connects the discharge side of the cutting module 3 and the feed side of the picking module 4. The feeding trough 31 only allows a single tube to pass through sequentially along the axial direction, preventing multiple tubes from falling simultaneously and causing blockage or misalignment. After the cutting module 3 completes the fixed-length cutting of the tube, the cut tubes enter the feeding trough 31 one by one by gravity and slide down the inclined surface to the picking area of ​​the lower layer 12 (the tubes enter the feeding trough 31 one by one). Under the single-tube limiting effect of the feeding trough 31, the tubes are automatically arranged after cutting, which facilitates the picking module 4 to grasp the tubes.

[0033] See Figure 3 , Figure 4 The material handling module 4 includes a material placement plate 41, on which a discharge trough 42 for placing the tube (matching the diameter of the tube) is provided. The length direction of the discharge trough 42 is parallel to the width direction of the discharge trough 31, and the discharge trough 42 and the discharge trough 31 are adjacent. The material placement plate 41 is movably mounted on the frame 1 (specifically, the material placement plate 41 is mounted on a sliding guide rail). The moving direction of the material placement plate 41 is along the normal direction of the length direction of the discharge trough 42 (perpendicular to the length direction of the discharge trough 42). When the material placement plate 41 moves at the discharge end of the discharge trough 31, the tube rolls into the discharge trough 42 under the action of gravity, realizing the automatic feeding of the material placement plate 41. The material handling module 4 includes a connecting plate 43 and a material handling push rod 45. The connecting plate 43 has a connecting groove 44, the length of which is parallel to the length of the feeding groove 42. The connecting plate 43 is fixedly mounted on the frame 1. The material handling push rod 45 can move along the length of the connecting groove 44. When the feeding plate 41 completes loading and the feeding groove 42 and the connecting groove 44 are connected, the material handling push rod 45 actuates, moving the tube from the feeding groove 42 to the connecting groove 44. When the connecting groove 44 and the recess are connected, the tube located on the feeding groove 42 is moved to the recess via the connecting groove 44 under the action of the material handling push rod 45, thus achieving automatic loading of the bending module 7.

[0034] See Figure 6The bending module 7 includes a rotating block 71 and a fixed block 72. When the rotating block 71 rotates, the bending operation of the tube is achieved under the action of the rotating block 71 and the fixed block 72. A clamping block 73 is provided on the rotating block 71. Both the clamping block 73 and the rotating block 71 have semi-circular grooves. The grooves on the clamping block 73 and the rotating block 71 are relatively closed to form a cavity 74 for fixing the tube. The clamping block 73 is raised and lowered on the rotating block 71. The clamping block 73 is raised and lowered by a cylinder or an electric push rod to control the opening and closing between it and the rotating block 71, thereby achieving clamping and releasing of the tube. By controlling the distance between the clamping block 73 and the rotating block 71, the clamping block 73 and the rotating block 71 cooperate to achieve the clamping function. The fixed block 72 is horizontally movable on the frame 1 and is installed on a sliding guide rail, which can move closer to or further away from the rotating block 71 in the horizontal direction on the frame 1. During bending operations, the fixing block 72 is positioned close to the rotating block 71 to provide support and positioning for the non-bent section of the tube, preventing axial slippage or instability during bending. After bending, the fixing block 72 moves away from the rotating block 71, allowing the clamping block 73 and the rotating block 71 to release their fixation on the tube, enabling the formed bent tube to automatically detach from the tube cavity 74 under gravity, achieving automatic unloading without manual intervention.

[0035] Example 2

[0036] This embodiment discloses a copper pipe bending and forming device for air conditioners. Based on Embodiment 1, it is further optimized, focusing on solving the problem of precise positioning of the pipe body before entering the bending module 7, thus improving the spatial geometric accuracy and batch consistency of multi-bend copper pipes. Compared to Embodiment 1, where the material-picking pusher 45 directly pushes the pipe body into the cavity 74 of the bending module 7, this embodiment adds a transfer module 5 and a pushing module 6 between the material-picking module 4 and the bending module 7. These modules are equipped with a transfer clamp 51 and a pushing clamp 61, respectively, forming a two-stage precise positioning and transmission system. Details are as follows:

[0037] See Figure 3 , Figure 4 , Figure 5The lower layer 12 has a transfer module 5 and a pusher module 6 located between the material taking module 4 and the bending module 7. The transfer module 5 and the pusher module 6 are respectively provided with a transfer clamp 51 and a pusher clamp 61. The transfer clamp 51 is located at the end of the material discharge groove 42. Under the action of the material taking top rod 45, the tube body moves to the transfer clamp 51 through the connecting groove 44. The transfer clamp 51 then moves the tube body into the cavity 74 of the bending module 7 through the pusher clamp 61. The transfer fixture 51 and the pusher fixture 61 each have a first clamping cavity 52 and a second clamping cavity 62, both of which are adapted to the shape of the tube. The length direction of the first clamping cavity 52 coincides with the length direction of the groove. One end of the first clamping cavity 52 facing the groove is open, and the other end is closed. When the tube is pushed towards the transfer fixture 51, the open end of the first clamping cavity 52 facilitates the entry of the tube, while the closed end of the first clamping cavity 52 provides end-face positioning for the tube. Specifically, when the tube is fully pushed in, its end face naturally abuts against the closed end, thereby achieving axial end-face positioning. This effectively eliminates the cumulative length error caused by pushing stroke error or initial position deviation, providing a unified reference surface for subsequent bending processing. The first clamping cavity 52 and the second clamping cavity 62 are arranged in parallel, and the second clamping cavity 62 and the tube cavity 74 are arranged coaxially. Both ends of the second clamping cavity 62 are open, and a pusher rod 63 is provided at the end of the second clamping cavity 62 away from the tube cavity 74. When the tube moves onto the pusher clamp 61, the pusher rod 63 actuates, moving the tube into the tube cavity 74. Under the end face positioning of the closed end of the first clamping cavity 52 and the coaxial arrangement of the second clamping cavity 62 and the tube cavity 74, the tube is accurately positioned within the tube cavity 74. Both the transfer clamp 51 and the pusher clamp 61 include a fixing member 64 and a moving member 65. Under the action of the fixing member 64 and the moving member 65, the transfer clamp 51 and the pusher clamp 61 are opened and closed. The opening and closing of the clamping cavity is achieved by pneumatic or electric drive. Both ends of the transfer clamp 51 and the pusher clamp 61 are control ends and open ends, respectively. The control ends of the transfer clamp 51 and the pusher clamp 61 are far apart from each other, so that the tube can still be smoothly transferred between the two when the clamps are closed, avoiding interference, so that the tube can move between the transfer clamp 51 and the pusher clamp 61.

[0038] Implementation Three

[0039] This embodiment discloses a copper pipe bending and forming equipment for air conditioners, which is further optimized based on Embodiments 1 and 2. It primarily addresses the capacity bottleneck problem of traditional single-station equipment, which can only process one pipe at a time. By introducing a multi-station parallel processing structure, the production cycle time and overall processing efficiency of the equipment are significantly improved. Details are as follows:

[0040] This embodiment expands the original single-channel material transfer and positioning structure laterally. Two or more sets of key receiving or guiding structures, such as the feeding trough 42, connecting trough 44, first clamping cavity 52, second clamping cavity 62, and tube cavity 74 in the bending module 7, are created and arranged side-by-side laterally along the frame 1. These troughs and cavities are structurally parallel and independent, but share the straightening and cutting module 3 on the upper layer 11 and a unified drive control system. Since the aforementioned troughs and cavities are all through-hole or groove-type structures used to receive and guide copper tubes, the core of achieving multi-channel operation lies in machining multiple corresponding structures of the same size and parallel axes at corresponding positions on the frame 1. For example, multiple parallel feeding slots 42 are formed on the feeding plate 41; multiple parallel connecting slots 44 are correspondingly set on the connecting plate 43; multiple first clamping cavities 52 and second clamping cavities 62 are respectively set on the transfer module 5 and the pushing module 6; multiple sets of grooves are also correspondingly machined on the rotating block 71 and the clamping block 73 of the bending module 7, which form multiple independent cavities 74 after being closed. The central axes of all slots and cavities are kept coplanar and the spacing is consistent to ensure that multiple copper tubes do not interfere with each other during the transmission and positioning process.

[0041] During operation, the cutting module 3 continuously cuts the copper tubes according to the set length, outputting multiple fixed-length tubes with each cut (or rapidly cutting multiple tubes sequentially). These tubes fall into the corresponding discharge troughs 42 through the diversion structure or the synchronously controlled discharge trough 31 outlet. Like a "Y"-shaped or "multi-forked" slide, the continuously sliding tubes are separated by physical paths, guiding them into different discharge troughs. Subsequently, the picking rods 45 of each station operate synchronously, pushing multiple tubes into their respective connecting grooves 44 and transfer clamps 51. The closed end of the transfer clamp 51 independently positions the end face of each tube, the second clamping cavity 62 of the pushing clamp 61 is coaxial with the corresponding tube cavity 74, and the pushing rod 63 pushes each tube into the bending station synchronously, achieving synchronous clamping and precise positioning of multiple copper tubes. Since all the tanks and cavities have the same structure and are arranged in parallel, the control system can perform synchronous or time-sharing programming control on each actuator (such as push rod, clamp, rotating block 71, etc.), which supports the simultaneous processing of multiple identical pipes and the differentiated processing of different bending processes, thus providing good production flexibility.

[0042] In addition, the arrangement of the cut tubes after batch cutting can be achieved using a linear vibratory feeder in conjunction with a straightening guide trough. Specifically, a linear vibratory feeder, along with a long guide trough and limiting baffles, is used to convey and initially arrange the cut short tubes with small-amplitude vibration. This method is suitable for copper tubes that have been predetermined in length and straightened, and the length should not be too long. The vibration amplitude needs to be precisely controlled to avoid jumping or rolling.

[0043] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A copper pipe bending and forming equipment for air conditioners, characterized in that, The system includes a frame, which is divided into an upper layer and a lower layer. The upper layer has a straightening module and a cutting module, and the lower layer has a material handling module and a bending module. A tube sequentially passes through the straightening module, the cutting module, the material handling module, and the bending module to achieve bending and forming operations. A feeding trough is provided between the upper and lower layers, and the feeding trough is inclined, connecting the discharge side of the cutting module and the feed side of the material handling module. The feeding trough allows only a single tube to pass through sequentially along the axial direction. After the cutting module completes a fixed-length cut, the tubes enter the feeding trough one by one. Under the single-tube limiting function of the feeding trough, the cut tubes are automatically arranged, facilitating the material handling module's gripping of the tubes. The bending module includes a rotating block and a fixed block. When the rotating block rotates, the bending operation of the tube is achieved under the action of the rotating block and the fixed block. A clamping block is provided on the rotating block. Both the clamping block and the rotating block have grooves. The grooves on the clamping block and the rotating block are closed to form a cavity for fixing the tube. The clamping block is raised and lowered on the rotating block. By controlling the distance between the clamping block and the rotating block, the clamping block and the rotating block cooperate to achieve the clamping function. The lower layer includes a transfer module and a pusher module located between the material handling module and the bending module. The transfer module and the pusher module are respectively equipped with a transfer clamp and a pusher clamp. Each clamp has a first clamping cavity and a second clamping cavity, both adapted to the shape of the tube. The length direction of the first clamping cavity coincides with the length direction of the groove. The end of the first clamping cavity facing the groove is open, and the other end is closed. When the tube is pushed towards the transfer clamp, the open end of the first clamping cavity facilitates the entry of the tube, while the closed end of the first clamping cavity provides end-face positioning for the tube. The first clamping cavity and the second clamping cavity are arranged in parallel, and the second clamping cavity and the tube cavity are arranged coaxially. Both ends of the second clamping cavity are open, and a push rod is provided at the end of the second clamping cavity away from the tube cavity. When the tube body moves onto the pusher, the push rod is activated to move the tube body into the tube cavity. Under the positioning of the end face of the closed end of the first clamping cavity and the coaxial arrangement of the second clamping cavity and the tube cavity, the tube body is accurately positioned into the tube cavity.

2. The air conditioning copper pipe bending and forming equipment as described in claim 1, characterized in that: The fixing block is horizontally movable on the frame; During bending operations, the fixing block is brought close to the rotating block to fix the tube to be bent. After the bending operation is performed, the fixed block moves away from the rotating block so that the bent tube can be automatically unloaded after the clamping block and the rotating block release their fixation on the tube.

3. The air conditioning copper pipe bending and forming equipment as described in claim 2, characterized in that: The material handling module includes a material placement plate, on which a material discharge trough for placing the tube is provided. The length direction of the material discharge trough is parallel to the width direction of the material discharge trough, and the material discharge trough and the material discharge trough are adjacent to each other. The material placement plate is movably mounted on the frame, and the moving direction of the material placement plate is along the normal direction of the length direction of the feeding trough. When the material placement plate moves at the discharge end of the feeding trough, the tube rolls into the feeding trough under the action of gravity, thereby realizing the automatic feeding of the material placement plate.

4. The air conditioning copper pipe bending and forming equipment as described in claim 3, characterized in that: The material handling module includes a connecting plate and a material handling push rod. The connecting plate is provided with a connecting groove, the length direction of which is parallel to the length direction of the material discharge groove. The connecting plate is fixedly mounted on the frame, and the material handling push rod can move along the length direction of the connecting groove. Once the feeding plate has finished feeding and the feeding trough and the connecting trough are connected, the material picking rod is activated to move the tube from the feeding trough to the connecting trough.

5. The air conditioning copper pipe bending and forming equipment as described in claim 4, characterized in that: When the connecting groove and the recess are connected, the tube located on the feeding groove moves to the recess through the connecting groove under the action of the feeding top rod, thereby realizing the automatic feeding of the bending module.

6. The air conditioning copper pipe bending and forming equipment as described in claim 5, characterized in that: The transfer clamp is located at the end of the feeding trough; under the action of the material picking rod, the tube moves to the transfer clamp via the connecting groove; the transfer clamp then moves the tube into the cavity of the bending module via the pushing clamp.

7. The air conditioning copper pipe bending and forming equipment as described in claim 6, characterized in that: Both the transfer clamp and the pusher clamp include a fixing component and a moving component. Under the action of the fixing component and the moving component, the transfer clamp and the pusher clamp realize the opening and closing function. Both ends of the transfer clamp and the pusher clamp are respectively a control end and an open end, and the control ends of the transfer clamp and the pusher clamp are far apart from each other, so that the tube body can move between the transfer clamp and the pusher clamp.

Images