A clamping positioning mechanism for a small elbow of a heat exchanger

Abstract

The utility model discloses a kind of clamping positioning mechanism for heat exchanger small elbow, including transverse clamping mechanism and longitudinal clamping mechanism, first direction and second direction are perpendicular to each other;Transverse clamping mechanism includes oppositely arranged transverse push part and transverse positioning part, transverse push part and transverse positioning part are clamped fin assembly from the two sides along first direction;Longitudinal clamping mechanism includes longitudinal clamping part and front stretch driving part, front stretch driving part drives longitudinal clamping part to move along first direction, longitudinal clamping part includes oppositely arranged first longitudinal clamping plate and second longitudinal clamping plate, first longitudinal clamping plate and second longitudinal clamping plate are clamped fin assembly from the two sides along second direction.The utility model is clamped to fin assembly from first direction and second direction by transverse clamping mechanism and longitudinal clamping mechanism, avoid top end to shake, guarantee the reliability of position identification and centering positioning when U type copper elbow is assembled.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning production equipment technology, and in particular to a clamping and positioning mechanism for a small elbow of a heat exchanger. Background Technology

[0002] Evaporators and condensers are the core heat exchange components in air conditioning units that realize the cooling / heating cycle. Both are among the most numerous, complexly manufactured, and densely welded assembly modules. In the residential air conditioning industry, evaporators and condensers generally adopt a compact tube-fin heat exchanger structure, whose basic components include: stamped finned fins, U-shaped copper tubes (long U-shaped tubes), U-shaped copper bends (elbows), and welded rings. The mainstream automated production lines for this type of heat exchanger typically include three key processes: 1. U-shaped copper tube insertion process: Insert the bent U-shaped copper tubes one by one into the stacked fin assembly to form the fin assembly; 2. Tube expansion process: The open end of the U-shaped copper tube is expanded to make the outer diameter of the open end of the copper tube larger than the diameter of the fin mounting hole; 3. U-shaped copper bend insertion and welding process: First, dry and dehumidify the inside of the U-shaped copper tube, then insert the U-shaped copper bend into the open end of the corresponding U-shaped copper tube and fit it with a welding ring. After welding, connect all the U-shaped copper tubes in series to form a single flow channel to complete the heat exchanger assembly.

[0003] In the automated execution of the above three major processes, to simultaneously meet the radial force application requirements after the tube expander aligns and the end alignment accuracy requirements during the welding of the U-shaped copper bend, existing production lines typically clamp the fin assembly vertically onto a dedicated fixture for transfer. Vertical clamping prevents deformation of the fin assembly under pressure and facilitates machine vision or sensors in identifying and centering the open end of the U-shaped copper tube. However, existing production lines only use a dedicated fixture to maintain the verticality of the fin assembly, which makes the top end prone to wobbling, hindering the assembly of the U-shaped copper bend. Therefore, A clamping and positioning mechanism needs to be designed to achieve the positioning and clamping of the fin assembly. Utility Model Content

[0004] This invention provides a clamping and positioning mechanism for a small elbow of a heat exchanger to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A clamping and positioning mechanism for a small elbow of a heat exchanger includes a transverse clamping mechanism that clamps the fin assembly from a first horizontal direction and a longitudinal clamping mechanism that clamps the fin assembly from a second horizontal direction, wherein the first and second directions are perpendicular to each other. The lateral clamping mechanism includes a lateral pushing component and a lateral positioning component arranged opposite to each other, which clamp the fin assembly from both sides along the first direction. The longitudinal clamping mechanism includes a longitudinal clamping component and a forward extension drive component. The forward extension drive component drives the longitudinal clamping component to move along a first direction. The longitudinal clamping component includes a first longitudinal clamping plate and a second longitudinal clamping plate arranged opposite to each other. The first longitudinal clamping plate and the second longitudinal clamping plate clamp the fin assembly from both sides along the second direction.

[0006] Preferably, the longitudinal clamping component further includes: a longitudinal clamping mounting plate, a first longitudinal driver and a second longitudinal driver, the forward extension driving component drives the longitudinal clamping mounting plate to move, the first longitudinal driver and the second longitudinal driver are disposed on the longitudinal clamping mounting plate, the first longitudinal driver drives the first longitudinal clamping plate to move along the second direction, and the second longitudinal driver drives the second longitudinal clamping plate to move along the second direction.

[0007] Preferably, the longitudinal clamping component further includes a position adjustment assembly, which is disposed on the longitudinal clamping mounting plate and adjusts the position of the first longitudinal driver along the second direction.

[0008] Preferably, the forward drive component includes a forward driver that drives the longitudinal clamping mounting plate.

[0009] Preferably, the lateral pushing component includes: a lateral pushing drive assembly, a lateral pushing sliding plate, and a lateral pushing pressure plate. The lateral pushing pressure plate is fixed on the lateral pushing sliding plate, the lateral pushing drive assembly drives the lateral pushing sliding plate to move, and the lateral pushing pressure plate abuts against the side of the fin assembly.

[0010] Preferably, a buffer is provided on the transverse push plate, and the working head of the buffer extends out of the transverse push plate and faces the transverse positioning component.

[0011] Preferably, the lateral positioning component includes a lateral positioning linear module and a lateral positioning pressure plate. The lateral positioning linear module drives the lateral positioning pressure plate to move along a first direction, and the lateral positioning pressure plate abuts against the side of the fin assembly.

[0012] Preferably, the lateral positioning component further includes a lateral positioning guide assembly, which guides the movement of the lateral positioning pressure plate.

[0013] Preferably, the lateral positioning guide assembly is located between the forward drive and the lateral positioning linear module, and the lateral positioning guide assembly is located below the longitudinal clamping mounting plate; the lateral positioning guide assembly includes a linear guide rail and a lateral positioning connecting seat, the lateral positioning connecting seat is connected to the slider of the linear guide rail and fixedly connected to the lateral positioning pressure plate; the lateral positioning connecting seat is provided with rollers, and the longitudinal clamping mounting plate rolls along the rollers.

[0014] Preferably, it includes two sets of lateral pushing components, each set corresponding to one set of lateral positioning components, and the two sets of lateral pushing components are arranged side by side along the second direction; the longitudinal clamping mechanism includes two sets of longitudinal clamping components and a forward extension driving component, the two sets of longitudinal clamping components are arranged side by side along the second direction and correspond to the two sets of lateral pushing components.

[0015] Beneficial effects: The clamping and positioning mechanism for a small bend in a heat exchanger disclosed in this application clamps the fin assembly from a first direction and a second direction by setting a transverse clamping mechanism and a longitudinal clamping mechanism. Compared with clamping from the bottom by a jig, this application can clamp and position the top end to avoid shaking and ensure the reliability of position identification and centering positioning of the U-shaped copper bend during assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a clamping and positioning mechanism for a small elbow of a heat exchanger disclosed in this utility model; Figure 2 This is a front view of a clamping and positioning mechanism for a small elbow of a heat exchanger disclosed in this utility model; Figure 3 This utility model discloses a structural schematic diagram of a clamping and positioning mechanism for a small elbow of a heat exchanger, comprising a transverse positioning component, a longitudinal clamping component, a forward extension driving component, and a transverse positioning mounting plate assembly. Figure 4 This utility model discloses a side view of an assembly of a lateral positioning component, a longitudinal clamping component, a forward extension drive component, and a lateral positioning mounting plate for a clamping and positioning mechanism for a small elbow of a heat exchanger. Figure 1 ; Figure 5 This is a side view of a clamping and positioning mechanism for a small elbow of a heat exchanger disclosed in this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the longitudinal clamping component of a clamping and positioning mechanism for a small elbow of a heat exchanger, as disclosed in this utility model. Figure 7 This is a side view of a longitudinal clamping component of a clamping and positioning mechanism for a small elbow of a heat exchanger, as disclosed in this utility model. Figure 8This is a schematic diagram of the transverse positioning component of a clamping and positioning mechanism for a small elbow of a heat exchanger, as disclosed in this utility model. Figure 9 This utility model discloses a structural schematic diagram of a lateral pushing component of a clamping and positioning mechanism for a small elbow of a heat exchanger. Figure 1 ; Figure 10 This utility model discloses a structural schematic diagram of a lateral pushing component of a clamping and positioning mechanism for a small elbow of a heat exchanger. Figure 2 .

[0018] In the diagram: 1. Lateral pushing component; 11. Lateral pushing sliding plate; 12. Lateral pushing pressure plate; 13. Connecting support plate; 131. Side stop block; 132. Side positioning block; 133. Adjusting screw; 14. Buffer; 15. Lateral pushing pressure plate; 16. Light column; 2. Lateral positioning component; 21. Lateral positioning linear module; 22. Lateral positioning pressure plate; 23. Lateral positioning guide assembly; 231. Lateral positioning connecting seat; 232. Roller; 24. Lateral positioning pressure plate; 25. Roller support frame; 3. Longitudinal clamping component; 31. First longitudinal clamping plate; 32. Second longitudinal clamping plate; 33. Longitudinal clamping mounting plate; 331. First support plate; 332. First bracket; 333. Second bracket; 334. Second support plate; 34. First longitudinal driver; 35. Second longitudinal driver; 36. Position adjustment assembly; 4. Forward extension drive component; 41. Forward extension driver; 5. Push the mounting plate horizontally; 6. Horizontal positioning mounting plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] A clamping and positioning mechanism for small elbows in heat exchangers, combined with Figures 1-10 As shown, it includes a transverse clamping mechanism that clamps the fin assembly from a first horizontal direction and a longitudinal clamping mechanism that clamps the fin assembly from a second horizontal direction, the first direction and the second direction being perpendicular to each other; The lateral clamping mechanism includes a lateral pushing component 1 and a lateral positioning component 2 arranged opposite to each other, which clamp the fin assembly from both sides along the first direction. The longitudinal clamping mechanism includes a longitudinal clamping component 3 and a forward extension drive component 4. The forward extension drive component 4 drives the longitudinal clamping component 3 to move along a first direction. The longitudinal clamping component 3 includes a first longitudinal clamping plate 31 and a second longitudinal clamping plate 32 arranged opposite to each other. The first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 clamp the fin assembly from both sides along a second direction. By setting a transverse clamping mechanism and a longitudinal clamping mechanism, this application clamps the fin assembly from the first direction and the second direction. Compared with clamping from the bottom using a jig, this application can clamp and position the top end to avoid shaking, ensuring reliable position identification and centering positioning of the U-shaped copper bend during assembly.

[0021] Specifically, the lateral pushing component 1 includes a lateral pushing mounting plate 5, and the lateral positioning component 2 includes a lateral positioning mounting plate 6. By installing the lateral pushing mounting plate 5 and the lateral positioning mounting plate 6 on the production line, the lateral pushing component 1 and the lateral positioning component 2 clamp and position the conveyed fin assembly in the assembly area of ​​the processing station.

[0022] Preferably, the longitudinal clamping component 3 further includes: a longitudinal clamping mounting plate 33, a first longitudinal driver 34, and a second longitudinal driver 35. The forward extension driving component 4 drives the longitudinal clamping mounting plate 33 to move. The first longitudinal driver 34 and the second longitudinal driver 35 are mounted on the longitudinal clamping mounting plate 33. The first longitudinal driver 34 drives the first longitudinal clamping plate 31 to move along the second direction, and the second longitudinal driver 35 drives the second longitudinal clamping plate 32 to move along the second direction. By driving the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 respectively through the first longitudinal driver 34 and the second longitudinal driver 35, the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 can be moved closer and further apart. When the forward extension driving component 4 drives the longitudinal clamping mounting plate 33 to extend the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32, the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 are extended to clamp and thus achieve positioning after the fin assembly is moved into place.

[0023] Specifically, the longitudinal clamping mounting plate 33 includes: a first support plate 331, a first bracket 332, a second bracket 333, and a second support plate 334. The first bracket 332 and the second bracket 333 are fixed to both ends of the upper surface of the first support plate 331 by screws. One end of the second support plate 334 is fixed to the second bracket 333 by screws and extends freely away from the first bracket 332. The first longitudinal actuator 34 is a guide rod cylinder and is located on the upper surface of the first support plate 331. The first longitudinal clamping plate 31 is fixed to the output end of the first longitudinal actuator 34 by screws. The second longitudinal actuator 35 is a guide rod cylinder and is fixed to the upper surface of the second support plate 334 by screws. The second longitudinal clamping plate 32 is fixed to the output end of the second longitudinal actuator 35 by screws and extends out of the second support plate 334 away from the first bracket 332.

[0024] Preferably, the longitudinal clamping component 3 further includes a position adjustment component 36, which is disposed on the longitudinal clamping mounting plate 33 and adjusts the position of the first longitudinal driver 34 along the second direction. By adjusting the position of the first longitudinal driver 34 by the position adjustment component 36, the distance between the first longitudinal driver 34 and the second longitudinal driver 35 can be changed, thereby enabling adaptation according to the dimensions (i.e., width) of different fin assemblies along the second direction.

[0025] Specifically, the position adjustment component 36 adopts a lead screw and nut structure. One end of the lead screw of the position adjustment component 36 is rotatably connected to the second bracket 333 via a bearing, and the other end passes through the first bracket 332 and is fitted with a handwheel. The nut of the position adjustment component 36 is threadedly connected to the lead screw and fixed to the sliding seat by screws. A linear guide rail is provided between the sliding seat and the first support plate 331 for guidance. The first longitudinal driver 34 is fixed to the upper surface of the sliding seat by screws. In addition, the position of the sliding seat is locked by the self-locking of the lead screw and nut and the addition of a handwheel locking structure.

[0026] Preferably, the forward extension drive component 4 includes a forward extension driver 41, which drives the longitudinal clamping mounting plate 33 to move towards the lateral pushing component 1. The first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 can extend into the fin assembly conveying space and are located on both sides of the fin assembly, respectively.

[0027] Specifically, the forward extension driver 41 adopts a slide cylinder and is fixed to the transverse positioning mounting plate 6 by screw connection. The slide of the forward extension driver 41 is fixed to the lower surface of the first support plate 331 of the longitudinal clamping mounting plate 33 by screw connection.

[0028] Preferably, the lateral pushing component 1 includes: a lateral pushing drive assembly, a lateral pushing sliding plate 11, and a lateral pushing pressure plate 12. The lateral pushing pressure plate 12 is fixed on the lateral pushing sliding plate 11. The lateral pushing drive assembly drives the lateral pushing sliding plate 11 to move. The lateral pushing pressure plate 12 abuts against the side of the fin assembly, thereby ensuring that one side of the fin assembly is pressed.

[0029] Specifically, the lateral pushing drive assembly uses a cylinder. The cylinder body of the lateral pushing drive assembly is fixed to the lateral pushing mounting plate 5 via a mounting base and screws. The output end of the lateral pushing drive assembly is connected to the lateral pushing sliding plate 11 via a floating structure. The lateral pushing pressure plate 12 is vertically arranged and fixed to the lateral pushing sliding plate 11 via screws. The lateral pushing drive assembly extends and drives the lateral pushing sliding plate 11 to move, thereby driving the lateral pushing pressure plate 12 to move towards the lateral positioning component 2. A linear guide rail is also provided between the lateral pushing sliding plate 11 and the lateral pushing mounting plate 5 for guidance. Two sets of linear guide rails are respectively arranged on both sides of the lateral pushing drive assembly. The guide rails of the linear guide rails are fixed to the upper surface of the lateral pushing mounting plate 5. A connecting support plate 13 is fixed to the slider of the linear guide rail via screws. The connecting support plate 13 has elongated holes. The lateral pushing sliding plate 11 can be adjusted and fixed on the connecting support plate 13 through screw connection and elongated holes.

[0030] Specifically, a side stop 131 is fixed to the connecting plate 13 by screws. The side stop 131 abuts against the side of the transverse push sliding plate 11 along the second direction. The side stop 131 on the two connecting plates 13 can limit the installation position of the transverse push sliding plate 11. A side positioning block 132 is also fixed to the connecting plate 13 by screws. The side positioning block 132 abuts against the side of the transverse push sliding plate 11 along the first direction, thereby positioning the transverse push sliding plate 11 on the connecting plate 13 along the first direction. Further, a threaded through hole along the first direction is provided on the side positioning block 132. An adjusting screw 133 passes through the threaded through hole and abuts against the side of the transverse push sliding plate 11. The position of the adjusting screw 133 on the side positioning block 132 is locked by a locking nut. By cooperating with the adjusting screws 133 on the two connecting plates 13, it is possible to adjust whether the transverse push pressure plate 12 is parallel to the transverse positioning pressure plate 22 of the transverse positioning component 2.

[0031] Preferably, a buffer 14 is provided on the transverse push plate 12, and the working head of the buffer 14 extends out of the transverse push plate 12 and faces the transverse positioning component 2. Before the transverse push plate 12 contacts the fin assembly, the buffer 14 holds the fin assembly against it to prevent it from tipping over. The side of the transverse push plate 12 facing the transverse positioning component 2 is provided with a groove so that the working head of the buffer 14 can be retracted into the groove, so that the transverse push plate 12 contacts the fin assembly.

[0032] Specifically, a horizontal pushing pressure plate 15 is mounted on the horizontal pushing pressure plate 12 via a height adjustment assembly. A light column guide block is fixed to the side of the horizontal pushing pressure plate 12 away from the horizontal positioning component 2, and the light column guide block is located above the horizontal pushing sliding plate 11. The light column guide block has a vertical guide hole, and a light column 16 is slidably disposed in the guide hole. A handle-equipped optical axis opening fixing ring is fixed to the light column guide block via screws, and the handle-equipped optical axis opening fixing ring is used to fix the light column 16. The top of the light column 16 is fixed to the horizontal pushing pressure plate 15 via screws and a connecting block. By unlocking the handle-equipped optical axis opening fixing ring and adjusting the height of the extended light column 16, the height of the horizontal pushing pressure plate 15 can be adjusted, thereby allowing the horizontal pushing pressure plate 15 and the horizontal pushing pressure plate 12 to press the fin assembly at multiple heights. In this embodiment, two sets of height adjustment assemblies are used to install and support the horizontal pushing pressure plate 15.

[0033] Preferably, the lateral positioning component 2 includes a lateral positioning linear module 21 and a lateral positioning pressure plate 22. The lateral positioning linear module 21 drives the lateral positioning pressure plate 22 to move along a first direction, and the lateral positioning pressure plate 22 abuts against the side of the fin assembly. By precisely controlling the extended position of the lateral positioning pressure plate 22 through the lateral positioning linear module 21, a positional reference can be provided for the positioning of the fin assembly after clamping.

[0034] Specifically, the lateral positioning linear module 21 adopts a servo electric cylinder. The lateral positioning linear module 21 is fixed on the lateral positioning mounting plate 6 by screw connection. The output end of the lateral positioning linear module 21 is fixed to the vertically set lateral positioning pressure plate 22 by screw connection.

[0035] Specifically, the transverse positioning pressure plate 22 is also equipped with a transverse positioning pressure plate 24 through two sets of height adjustment components, so that the transverse pushing pressure plate 12 is opposite to the transverse positioning pressure plate 22, and the transverse pushing pressure plate 15 is opposite to the transverse positioning pressure plate 24.

[0036] Preferably, the lateral positioning component 2 further includes a lateral positioning guide component 23, which guides the movement of the lateral positioning plate 22 to ensure the stability of the movement of the lateral positioning plate 22.

[0037] Preferably, the lateral positioning guide assembly 23 is located between the forward extension driver 41 and the lateral positioning linear module 21, and the lateral positioning guide assembly 23 is located below the second support plate 334 of the longitudinal clamping mounting plate 33. The lateral positioning guide assembly 23 includes a linear guide rail and a lateral positioning connecting seat 231. The lateral positioning connecting seat 231 is connected to the slider of the linear guide rail and fixedly connected to the lateral positioning pressure plate 22 by screws. The lateral positioning connecting seat 231 is provided with a roller 232, and the longitudinal clamping mounting plate 33 rolls along the roller 232. The layout of this application enables a more compact structure and allows for the provision of rollers 232 to support the second support plate 334, ensuring the forward extension of the longitudinal clamping mounting plate 33.

[0038] Specifically, the track of the lateral positioning guide assembly 23 is fixed to the upper surface of the lateral positioning mounting plate 6. The lateral positioning connecting seat 231 is fixed above the slider of the lateral positioning guide assembly 23 by screws, and the end of the lateral positioning connecting seat 231 is fixed to the lateral positioning pressure plate 22 by screws. Multiple rollers 232 with shafts are fixed to the side of the lateral positioning connecting seat 231 by screws, causing the rollers 232 to extend. The multiple rollers 232 are arranged along the first direction, and the outer ring of the rollers 232 abuts against the lower surface of the second support plate 334.

[0039] Specifically, a roller support frame 25 is also fixed to the upper surface of the horizontal positioning mounting plate 6 by screws, and the upper surface of the roller support frame 25 is supported under multiple rollers 232.

[0040] Preferably, in this embodiment, two sets of lateral pushing components 1 are included, each corresponding to one set of lateral positioning components 2, and the two sets of lateral pushing components 1 are arranged side by side on the lateral pushing mounting plate 5 along the second direction; the longitudinal clamping mechanism includes two sets of longitudinal clamping components 3 and a forward extension drive component 4, the two sets of longitudinal clamping components 3 are arranged side by side along the second direction and correspond to the two sets of lateral pushing components 1. The two sets of longitudinal clamping components 3 are arranged on both sides of the lateral positioning linear module 21, and the second longitudinal clamping plate 32 of the two sets of longitudinal clamping components 3 is located above the lateral positioning linear module 21. The lateral positioning pressure plate 22 and the lateral positioning pressure plate 24 are relatively long, which can ensure the positioning of the two fin assemblies (i.e., the heat exchangers corresponding to the indoor and outdoor units of the air conditioner, respectively) on the corresponding fixture. The lateral pushing pressure plate 12 and the lateral pushing pressure plate 15 of the two sets of lateral pushing components 1 correspond to the lateral positioning pressure plate 22, and each set of lateral pushing components 1 is used to clamp one fin assembly.

[0041] The working principle of the device in this application is as follows: The lateral positioning linear module 21 of the lateral positioning component 2 drives the lateral positioning pressure plate 22 to extend forward, leaving a certain distance between the lateral positioning pressure plate 22 and the final clamping position. The fixture drives the fin assembly to move in front of the lateral positioning pressure plate 22, and the lateral positioning linear module 21 drives the lateral positioning pressure plate 22 to extend forward to the final clamping position to abut against the fin assembly, preventing the fin assembly from tilting. The forward extension drive component 4's forward extension driver 41 drives the longitudinal clamping mounting plate 33 to move laterally against the pressure plate 12, and the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 on the longitudinal clamping mounting plate 33 extend through the gap in the lateral positioning pressure plate 22 to both sides of the fin assembly. The lateral positioning linear module 21 drives the lateral positioning pressure plate 22 to move back a certain distance to make room, and the first longitudinal driver 34 and the second longitudinal driver 35 drive the first longitudinal clamping plate 31 and the second longitudinal clamping plate 32 to approach and clamp the fin assembly, realizing the positioning in the second direction. The lateral positioning linear module 21 drives the lateral positioning pressure plate 22 to extend to the final clamping position, and the lateral push drive assembly drives the lateral push pressure plate 12 to move towards the lateral positioning pressure plate 22. The working head of the buffer 14 first abuts against the fin assembly to prevent the fin assembly from tilting. The lateral push drive assembly drives the lateral push pressure plate 12 to move continuously, and the buffer 14 is gradually compressed until the lateral push pressure plate 12 abuts against the fin assembly. The lateral push pressure plate 12 and the lateral positioning pressure plate 22 clamp the fin assembly from both sides to achieve positioning in the first direction. To ensure that the fins of the fin assembly are not damaged, the lateral positioning linear module 21 is equipped with torque feedback to limit the magnitude of the clamping force.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping positioning mechanism for a small bend of a heat exchanger, characterized in that, It includes a lateral clamping mechanism that clamps the fin assembly from a first horizontal direction and a longitudinal clamping mechanism that clamps the fin assembly from a second horizontal direction, wherein the first and second directions are perpendicular to each other; The lateral clamping mechanism includes a lateral pushing component (1) and a lateral positioning component (2) arranged opposite to each other, the lateral pushing component (1) and the lateral positioning component (2) clamping the fin assembly from both sides along the first direction; The longitudinal clamping mechanism includes a longitudinal clamping component (3) and a forward extension drive component (4). The forward extension drive component (4) drives the longitudinal clamping component (3) to move along a first direction. The longitudinal clamping component (3) includes a first longitudinal clamping plate (31) and a second longitudinal clamping plate (32) arranged opposite to each other. The first longitudinal clamping plate (31) and the second longitudinal clamping plate (32) clamp the fin assembly from both sides along a second direction.

2. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 1, characterized in that, The longitudinal clamping component (3) further includes: a longitudinal clamping mounting plate (33), a first longitudinal driver (34) and a second longitudinal driver (35). The forward extension driving component (4) drives the longitudinal clamping mounting plate (33) to move. The first longitudinal driver (34) and the second longitudinal driver (35) are disposed on the longitudinal clamping mounting plate (33). The first longitudinal driver (34) drives the first longitudinal clamping plate (31) to move along the second direction, and the second longitudinal driver (35) drives the second longitudinal clamping plate (32) to move along the second direction.

3. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 2, wherein The longitudinal clamping component (3) further includes a position adjustment component (36), which is disposed on the longitudinal clamping mounting plate (33) and adjusts the position of the first longitudinal driver (34) along the second direction.

4. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 2 or 3, characterized in that, The forward drive component (4) includes a forward driver (41) that drives the longitudinal clamping mounting plate (33).

5. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 1, wherein The lateral pushing component (1) includes: a lateral pushing drive assembly, a lateral pushing sliding plate (11) and a lateral pushing pressure plate (12). The lateral pushing pressure plate (12) is fixed on the lateral pushing sliding plate (11). The lateral pushing drive assembly drives the lateral pushing sliding plate (11) to move. The lateral pushing pressure plate (12) abuts against the side of the fin assembly.

6. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 5, wherein The transverse push plate (12) is provided with a buffer (14), and the working head of the buffer (14) extends out of the transverse push plate (12) and faces the transverse positioning component (2).

7. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 4, wherein The lateral positioning component (2) includes a lateral positioning linear module (21) and a lateral positioning pressure plate (22). The lateral positioning linear module (21) drives the lateral positioning pressure plate (22) to move along a first direction. The lateral positioning pressure plate (22) abuts against the side of the fin assembly.

8. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 7, wherein The lateral positioning component (2) further includes a lateral positioning guide component (23), which guides the movement of the lateral positioning pressure plate (22).

9. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 8, wherein The lateral positioning guide component (23) is located between the forward driver (41) and the lateral positioning linear module (21), and the lateral positioning guide component (23) is located below the longitudinal clamping mounting plate (33); the lateral positioning guide component (23) includes a linear guide rail and a lateral positioning connecting seat (231), the lateral positioning connecting seat (231) connects the slider of the linear guide rail and fixes the lateral positioning pressure plate (22); the lateral positioning connecting seat (231) is provided with a roller (232), and the longitudinal clamping mounting plate (33) rolls along the roller (232).

10. A clamping positioning mechanism for a small bend of a heat exchanger according to claim 1, wherein It includes two sets of lateral pushing components (1), each set of lateral pushing components (1) corresponds to a set of lateral positioning components (2), and the two sets of lateral pushing components (1) are arranged side by side along the second direction; the longitudinal clamping mechanism includes two sets of longitudinal clamping components (3) and a forward extension drive component (4), the two sets of longitudinal clamping components (3) are arranged side by side along the second direction and correspond to the two sets of lateral pushing components (1).

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