Clamping mechanism and tube expansion device

Abstract

The utility model discloses a clamping mechanism and a tube expansion device, which relate to the technical field of fin processing, wherein the clamping mechanism comprises a back plate, a clamping assembly, a locking assembly and a stopper, the clamping assembly comprises a limit plate and a clamping drive, the clamping drive is used to drive the limit plate to approach or move away from the back plate, so as to limit or release the fin located between the back plate and the limit plate; the locking assembly is used to lock and limit the limit plate, so that the limit plate can be maintained in a limit position for limiting the fin; the stopper is located between the limit plate and the back plate, and when the limit plate is in the limit position, the stopper respectively abuts the limit plate and the back plate, so that there is a gap between the limit plate and the fin for the fin to expand and deform; when the air-conditioning fin is expanded and deformed, the utility model can prevent the interaction force between the limit plate and the air-conditioning fin from being too strong, thereby causing the air-conditioning fin to deform, while ensuring that the limit plate has sufficient clamping force.

Description

Technical Field

[0001] The utility model relates to the technical field of fin processing, in particular to a clamping mechanism and a tube expansion device. Background Art

[0002] After the air conditioner fins are inserted, they need to be expanded. Currently, after the product is manually placed in the expansion machine, the door needs to be manually locked to clamp the air conditioner fins. Because the product is subjected to a large radial force during expansion, the door must have a high holding strength and a small gap between the door and the product to prevent product deformation. When the operation is performed manually, it is impossible to coordinate well between the high holding strength of the door and the small gap between the door and the product, so that the product cannot be effectively limited or the product may be deformed. Utility Model Content

[0003] The main purpose of the utility model is to provide a clamping mechanism and a tube expansion device, which are intended to achieve high-strength clamping of air conditioner fins while preventing them from being deformed after processing.

[0004] In order to achieve the above-mentioned purpose, the clamping mechanism proposed by the utility model comprises:

[0005] Back panel;

[0006] A clamping assembly, the clamping assembly comprising a limiting plate and a clamping driver, the clamping driver being used to drive the limiting plate to approach or move away from the back plate, so as to limit or release the fin between the back plate and the limiting plate;

[0007] A locking assembly, wherein the locking assembly is used to lock and limit the limit plate so that the limit plate can be maintained at a limit position for limiting the position of the fin; and

[0008] The stopper is located between the limit plate and the back plate. When the limit plate is at the limit position, the stopper abuts against the limit plate and the back plate respectively, so that there is a gap between the limit plate and the fin for the fin to expand and deform.

[0009] In one embodiment, at least two clamping assemblies are provided, and at least two clamping assemblies are arranged along the extension direction of the back plate;

[0010] Each of the clamping components is locked and limited by an independent locking component;

[0011] Alternatively, two adjacent clamping assemblies share the locking assembly for locking and limiting.

[0012] In one embodiment, the clamping assembly includes a plurality of limit plates, and the plurality of limit plates are spaced apart and distributed along the height direction of the back plate.

[0013] In one embodiment, the clamping drive member includes a rotating frame, a rotating shaft and a first power member. The rotating frame and the first power member are arranged on the back plate. The rotating shaft is rotatably installed on the rotating frame. The first power member is drivingly connected to the rotating shaft, and the limiting plate is fixedly arranged on the rotating shaft.

[0014] In one embodiment, two adjacent clamping assemblies share the locking assembly for locking and limiting, and the locking assembly includes a lock buckle, a second power member and a locking tongue. The lock buckle is arranged on one of the clamping assemblies, and the second power member is arranged on the other clamping assembly. The second power member drives and connects the locking tongue, and the second power member is used to drive the locking tongue to be inserted into the lock buckle to lock the two limiting plates of the two clamping assemblies.

[0015] In one embodiment, the locking tongue has an insertion end in an oblique wedge shape, and the lock buckle has an insertion cavity that cooperates with the insertion end.

[0016] In one embodiment, the clamping mechanism further comprises a pre-positioning component provided on the back plate, and the pre-positioning component is used to pre-position the fin to the back plate.

[0017] In one embodiment, two pre-positioning components are provided, and the two pre-positioning components are arranged opposite to each other and spaced apart. The pre-positioning components include a positioning member and a third power member, and the third power member is driven and connected to the positioning member. The third power member is used to drive the positioning member to move so as to limit or release the fin located between the two positioning members.

[0018] The utility model also provides a tube expansion device, comprising:

[0019] Tube expanders; and,

[0020] The clamping mechanism is arranged on the tube expander.

[0021] In one embodiment, the tube expanding device further comprises a transport mechanism for loading and unloading fins from the tube expanding machine, and the transport mechanism comprises a manipulator and a clamping claw disposed at an output end of the manipulator.

[0022] In one embodiment, the clamp includes a base connected to the output end of the manipulator, and a clamping component provided on the base.

[0023] In one embodiment, the clamping components are provided in plurality, and the plurality of clamping components include a lifting component provided below the base and a plurality of clamping components provided on both sides of the base respectively;

[0024] The lifting member includes a supporting plate and a fourth power member, the supporting plate is located below the base, and the fourth power member is used to drive the supporting plate to extend toward or retract the fin;

[0025] The clamping member comprises a clamping claw and a fifth power member, and the fifth power member drives and connects the clamping claw so that the fin is clamped and fixed between the plurality of clamping members.

[0026] In one embodiment, the clamp further includes a color mark detection sensor disposed above the base, and the color mark detection sensor is used to detect whether the side plates at both ends of the fin are missing.

[0027] The technical solution of the utility model is to set a clamping component to cooperate with the back plate, and to enclose and clamp the air-conditioning fin when the air-conditioning fin is pre-positioned, and to set a stopper on the back plate. When the clamping component encloses and clamps the air-conditioning fin, the limit plate of the clamping component abuts against the stopper, thereby maintaining a certain gap between the limit plate and the air-conditioning fin. At the same time, a locking component is set to lock and limit the limit plate in the clamping state of the air-conditioning fin, so that the limit plate has a high holding strength. When the air-conditioning fin expands and deforms, while ensuring that the limit plate has sufficient clamping force, it can prevent the interaction force between the limit plate and the air-conditioning fin from being too strong, thereby causing deformation of the air-conditioning fin. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 A structural schematic diagram of an embodiment of a tube expansion device provided by the utility model;

[0030] Figure 2 A structural schematic diagram of an embodiment of a clamping mechanism provided by the utility model;

[0031] Figure 3 for Figure 2 A magnified view at point A;

[0032] Figure 4 for Figure 2 Enlarged view at B;

[0033] Figure 5 This is a schematic structural diagram of the clamping jaws of the tube expansion device provided by the utility model.

[0034] Description of Figure Numbers:

[0035] 1000, tube expansion device; 100, clamping mechanism; 10, back plate; 20, pre-positioning assembly; 21, positioning member; 211, first positioning portion; 212, second positioning portion; 22, third power member; 30, clamping assembly; 31, limit plate; 32, clamping drive member; 321, rotating frame; 322, rotating shaft; 323, first power member; 40, locking assembly; 41, lock; 42, second power member; 43, locking tongue; 50, blocking member; 200, tube expansion machine; 300, transport mechanism; 301, manipulator; 302, clamping claw; 3021, base; 3022, clamping member; 3023, color mark detection sensor.

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] After the air conditioner fins are inserted, they need to be expanded. Currently, after the product is manually placed in the expansion machine, the door needs to be manually locked to clamp the air conditioner fins. Because the product is subjected to a large radial force during expansion, the door must have a high holding strength and a small gap between the door and the product to prevent product deformation. When the operation is performed manually, it is impossible to coordinate well between the high holding strength of the door and the small gap between the door and the product, so that the product cannot be effectively limited or the product may be deformed.

[0041] To this end, the utility model proposes a clamping mechanism 100, which is used in a tube expander 200 to achieve small gap clamping with the fins and high holding strength after clamping.

[0042] See also Figures 2 to 4 In one embodiment of the utility model, the clamping mechanism 100 includes a back plate 10, a clamping assembly 30, a locking assembly 40 and a stopper 50. The clamping assembly 30 includes a limit plate 31 and a clamping drive 32. The clamping drive 32 is used to drive the limit plate 31 to approach or move away from the back plate 10 to limit or release the fins located between the back plate 10 and the limit plate 31; the locking assembly 40 is used to lock and limit the limit plate 31 so that the limit plate 31 can be maintained in a limit position for limiting the fins; the stopper 50 is located between the limit plate 31 and the back plate 10. When the limit plate 31 is in the limit position, the stopper 50 respectively abuts against the limit plate 31 and the back plate 10 so that there is a gap between the limit plate 31 and the fin for the fin to expand and deform.

[0043] In this embodiment, the back plate 10 is located in the working chamber of the tube expander 200. There are multiple back plates 10, each of which is extended in the horizontal direction. The multiple back plates 10 are spaced apart in the vertical direction. Each back plate 10 is provided with multiple retaining members 50 on one side facing the air conditioner fins. When the air conditioner fin tube expander 200 is placed in place, the retaining members 50 are distributed on both sides of the air conditioner fins, and both sides of the air conditioner fins are limited by the retaining members 50. In addition, when the fins are limited between the back plate 10 and the limiting plate 31, the retaining members 50 abut against the limiting plate 50. After the abutment, there is a gap between the limiting plate 50 and the fins, and the gap can provide expansion space for the air conditioner fins when expanding.

[0044] In another embodiment, different from the above-mentioned embodiment, the stop member 50 is arranged on the limit plate 31, and the stop member 50 moves toward the back plate 10 with the limit plate 31. When the fin is limited between the limit plate 31 and the back plate 10, the stop member 50 abuts against the back plate. After the abutment, there is a gap between the limit plate 50 and the fin, and the gap can provide expansion space when the air conditioner fin expands.

[0045] In addition, in another embodiment, different from the above embodiments, the stopper 50 includes a first stopper and a second stopper, the first stopper is arranged on the back plate 10, and the second stopper is arranged on the limiting plate 31, the second stopper 50 moves toward the back plate 10 with the limiting plate 31, and when the fin is limited between the limiting plate 31 and the back plate 10, the first stopper and the second stopper just abut against each other, and there is a gap between the limiting plate 50 and the fin after the abutment, and the gap can provide expansion space for the air conditioner fin when the tube is expanded.

[0046] When the air conditioner fin is placed in the tube expander 200, the back of the air conditioner fin is against the back plate 10, and the bottom of the air conditioner fin is placed on the bottom wall of the inner cavity of the tube expander 200, and then the air conditioner fin is positioned. After the air conditioner fin is positioned, the clamping assembly 30 is started, and the clamping drive 32 drives the limit plate 31 to close against the back plate 10 until the limit plate 31 abuts against the stopper 50, and the air conditioner fin is limited in the clamping space enclosed by the back plate 10 and the limit plate 31, and the limit plate 31 abuts against the stopper 50, so that there is a certain gap between the air conditioner fin and the limit plate 31, and the gap can provide expansion space for the air conditioner fin when expanding the tube. Next, the locking assembly 40 is started to lock and limit the limit plate 31 that is in a state of limiting the air-conditioning fin. In the subsequent process of expanding the air-conditioning fin, the limit plate 31 has a sufficiently high holding strength because it is locked. At the same time, since there is a gap between the limit plate 31 and the air-conditioning fin, when the air-conditioning fin is expanded and deformed, the interaction force between the limit plate 31 and the air-conditioning fin can be prevented from being too strong, thereby causing deformation of the air-conditioning fin.

[0047] The technical solution of the utility model is to set a clamping assembly 30 to cooperate with the back plate 10, and to enclose and clamp the air-conditioning fin when the air-conditioning fin is pre-positioned, and to set a stopper 50 on the back plate 10. When the clamping assembly 30 encloses and clamps the air-conditioning fin, the limit plate 31 of the clamping assembly 30 abuts against the stopper 50, so that a certain gap is maintained between the limit plate 31 and the air-conditioning fin. At the same time, a locking assembly 40 is set to lock and limit the limit plate 31 in the clamping state of the air-conditioning fin, so that the limit plate 31 has a high holding strength. When the air-conditioning fin expands and deforms, while ensuring that the limit plate 31 has sufficient clamping force, it can prevent the interaction force between the limit plate 31 and the air-conditioning fin from being too strong, thereby causing deformation of the air-conditioning fin.

[0048] There are at least two clamping assemblies 30, and at least two clamping assemblies 30 are arranged along the extension direction of the back plate 10;

[0049] Each clamping assembly 30 is locked and limited by an independent locking assembly 40;

[0050] Alternatively, two adjacent clamping assemblies 30 share the locking assembly 40 for locking and limiting.

[0051] See also Figure 2 In this embodiment, two clamping assemblies 30 are provided. Specifically, when there are two clamping assemblies 30 and they are arranged along the extension direction of the back plate 10, the limiting plate 31 of each clamping assembly 30 is flipped from one side of the air conditioning fin toward the air conditioning fin, and the limiting plates 31 on both sides cover the air conditioning fin at the same time. Therefore, the limiting plates 31 of the two clamping assemblies 30 do not need to be too long, so that when the clamping assemblies 30 are provided, the space occupied by a single clamping assembly 30 can be reduced, which is beneficial to the arrangement of the clamping mechanism in the tube expander 200.

[0052] At the same time, the two clamping components 30 can cooperate with each other through the same locking component to achieve mutual locking and limiting. Alternatively, each clamping component 30 is equipped with an independent locking component 40. When the clamping component 30 limits the fin, each clamping component 30 is locked by an independent locking component 40.

[0053] In the above embodiment, when the two clamping assemblies 30 clamp the air conditioner fins, the limiting plate 31 of one clamping assembly 30 can be connected to the limiting plate 31 of the other clamping assembly 30. That is, when the two clamping assemblies 30 are in the clamping state, the free ends of the limiting plates 31 of the two clamping assemblies 30 can be connected together, so that the two clamping assemblies 30 can cooperate to clamp the air conditioner fins.

[0054] Furthermore, in the above embodiment, the clamping assembly 30 includes a plurality of limiting plates 31 , and the plurality of limiting plates 31 are spaced apart and distributed along the height direction of the back plate 10 .

[0055] In this embodiment, a plurality of limit plates 31 are spaced apart along the height direction of the back plate 10. When the two clamping assemblies 30 are operating simultaneously to clamp and position the air-conditioning fins, the limit plates 31 of one of the clamping assemblies 30 can be joined together with the limit plates 31 of the other clamping assemblies 30 to make the gap between the two groups of limit plates 31 smaller, and the entire surface of the air-conditioning fins can evenly bear the clamping force of the two clamping assemblies 30.

[0056] Continue reading Figure 2 As shown, the clamping drive member 32 includes a rotating frame 321, a rotating shaft 322 and a first power member 323. The rotating frame 321 and the first power member 323 are arranged on the back plate 10. The rotating shaft 322 is rotatably installed on the rotating frame 321. The first power member 323 drives the connecting rotating shaft 322. The limiting plate 31 is fixedly arranged on the rotating shaft 322.

[0057] In this embodiment, the clamping assembly 30 is located on the side of the air-conditioning fin, and the first power member 323 includes a reduction motor, two pulleys, and a transmission belt. The reduction motor is installed on the back plate 10, and the two pulleys are respectively arranged on the reduction motor and the rotating shaft 322. The transmission belt connects the two pulleys. The reduction motor drives the rotating shaft 322 to rotate by driving the pulleys. The first power member 323 drives the rotating shaft 322 to rotate, and flips the limit plate 31 to cover the air-conditioning fin. The limit plate 31 flips from one side of the air-conditioning fin toward the air-conditioning fin. For this reason, the axis of the rotating shaft 322 generally extends along the height direction of the air-conditioning fin.

[0058] In other embodiments, the clamping assembly 30 may also be located above or below the air-conditioning fin. The first power member 323 drives the rotating shaft 322 to rotate. When the limiting plate 31 is flipped over and covered on the air-conditioning fin, the limiting plate 31 is flipped from top to bottom or from bottom to top toward the air-conditioning fin, and the axis of the rotating shaft 322 generally extends along the length direction of the air-conditioning fin.

[0059] See also Figure 3 , Figure 4 As shown, in the above embodiment, two adjacent clamping assemblies 30 share a locking assembly 40 for locking and limiting. The locking assembly 40 includes a lock buckle 41, a second power member 42 and a lock tongue 43. The lock buckle 41 is arranged on one clamping assembly 30, and the second power member 42 is arranged on the other clamping assembly 30. The second power member 42 drives the connected lock tongue 43. The second power member 42 is used to drive the lock tongue 43 to be inserted into the lock buckle 41 to lock the two limit plates 31 of the two clamping assemblies 30.

[0060] In this embodiment, the lock 41 is arranged on the limit plate 31 on one side of the air-conditioning fin, and the second power member 42 and the lock tongue 43 are arranged on the limit plate 31 on the other side of the air-conditioning fin. The second power member can be a cylinder or a hydraulic cylinder. When the two sets of clamping assemblies 30 work at the same time to clamp the air-conditioning fin, the limit plates 31 on both sides of the air-conditioning fin are simultaneously covered on the air-conditioning fin. At this time, the lock tongue 43 is facing the lock 41. The lock tongue 43 is driven by the second power member 42 to insert into the lock 41, so that the clamping state of the clamping assembly 30 can be maintained tightly, so that it has a high holding strength.

[0061] In addition, in other embodiments, when there is only one clamping assembly 30, unlike the above embodiments, the lock buckle 41 is arranged on the limit plate 31 of the clamping assembly 30, and the lock tongue 43 and the second power member 42 are arranged on the back plate 10; or the lock buckle 41 is arranged on the back plate 10, and the lock tongue 43 and the second power member 42 are arranged on the limit plate 31. When the clamping assembly 30 is in a clamping state for the air-conditioning fin, the second power member 42 can drive the lock tongue 43 to insert into the lock buckle 41.

[0062] In a further embodiment, the lock tongue 43 has an insertion end in an oblique wedge shape, and the lock buckle 41 has an insertion cavity that matches the insertion end. Specifically, when the insertion end of the lock tongue 43 is in an oblique wedge shape, the insertion end of the lock tongue 43 can fully fit with the insertion cavity of the lock buckle 41, and the fitting area is also large, so that more sufficient locking force can be provided, so that the locking assembly 40 can more effectively lock and maintain the clamping state of the clamping assembly 30.

[0063] See also Figure 2 , Figure 3 As shown, in the embodiment of the utility model, the clamping mechanism further includes a pre-positioning component 20 disposed on the back plate 10 , and the pre-positioning component 20 is used to pre-position the fin to the back plate 10 .

[0064] The purpose of such arrangement is to achieve pre-positioning in the air-conditioning fin expander 200, that is, when the air-conditioning fin is pre-positioned, the air-conditioning fin will not rock left and right when it rests against the back plate 10, and will not fall over.

[0065] In this embodiment, further, two pre-positioning components 20 are provided, and the two pre-positioning components 20 are arranged opposite to each other and at intervals. The pre-positioning components 20 include a positioning member 21 and a third power member 22. The third power member 22 drives the connected positioning member 21. The third power member 22 is used to drive the positioning member 21 to move so as to limit or release the fin located between the two positioning members 21.

[0066] Specifically, the third power member 22 adopts a cylinder. When the air-conditioning fin is just placed in the tube expander 200 and fits the back plate 10, the two pre-positioning components 20 are started, and the third power member 22 drives the positioning member 21 to move from both sides of the air-conditioning fin toward the air-conditioning fin. When both side edges of the air-conditioning fin are in contact with the positioning members 21 on the corresponding sides, the air-conditioning fin is positioned between the two pre-positioning components 20 by the pre-positioning component 20.

[0067] See also Figure 3 As shown, in the above embodiment, the positioning member 21 includes a first positioning portion 211 for limiting the side of the air-conditioning fin, and a second positioning portion 212 for limiting the side of the air-conditioning fin away from the back plate 10. Specifically, the positioning member 21 is roughly L-shaped, the first positioning portion 211 is located on the side of the positioning member 21 facing the side of the air-conditioning fin, and the second positioning portion 212 is located on the side of the positioning member 21 facing the front end of the air-conditioning fin. When the positioning member 21 abuts against the air-conditioning fin, at least the first positioning portion 211 abuts against the side of the air-conditioning fin, and the second positioning portion 212 can be enclosed with the back plate 10 to limit the two sides of the air-conditioning fin, or the second positioning portion 212 directly abuts against the side of the air-conditioning fin away from the back plate 10.

[0068] In this embodiment, the two pre-positioning components 20 are both located at the upper end of the back plate 10. When the pre-positioning components 20 are working, the upper part of the air-conditioning fin is limited. Since the bottom of the air-conditioning fin is placed on the bottom wall of the inner cavity of the tube expander 200, the entire air-conditioning fin can be limited. There is no need to set more pre-positioning components 20, which can reduce the cost of the product.

[0069] Of course, multiple pre-positioning components 20 can also be provided, and the multiple pre-positioning components 20 are distributed on the back plate 10 from top to bottom, and the multiple pre-positioning components 20 are divided into two groups that are symmetrical on both sides of the air-conditioning fins.

[0070] In addition, the existing tube expander directly adopts manual loading and unloading for air conditioner fins, which has high loading and unloading operation intensity, insufficient positioning accuracy, and the fins are easily damaged, resulting in defects.

[0071] For this purpose, see Figure 1 , Figure 5 As shown, the present invention also proposes a tube expansion device 1000, which includes a tube expander 200, a clamping mechanism 100 and a transport mechanism 300. The specific structure of the clamping mechanism 100 refers to the above embodiment. Since the tube expansion device 1000 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the clamping mechanism 100 is arranged on the tube expander 200.

[0072] In this embodiment, the tube expansion device 100 further includes a transport mechanism 300 for loading and unloading air-conditioning fins from the tube expander 200. The transport mechanism 300 includes a manipulator 301 and a gripper 302 disposed at an output end of the manipulator 301.

[0073] In this embodiment, the gripper 302 is driven by the manipulator 301 to approach the air-conditioning fin that has not been expanded, and the gripper 302 grabs the air-conditioning fin. Then, the manipulator 301 moves the air-conditioning fin, moves the air-conditioning fin into the tube expander 200, and abuts against the back plate 10. Then, the clamping mechanism 100 is started to clamp the air-conditioning fin, and the tube expander 200 is started to expand the air-conditioning fin. When the air-conditioning fin expansion operation is completed, the clamping mechanism 100 releases the air-conditioning fin. At the same time, the manipulator 301 moves the gripper 302 to the tube expander 200 to grab the expanded air-conditioning fin to realize the unloading of the air-conditioning fin.

[0074] Reference Figure 5 As shown, there are multiple clamping parts 3022, and the multiple clamping parts 3022 include a lifting part arranged below the base 3021 and multiple clamping parts respectively arranged on both sides of the base 3021;

[0075] The supporting member includes a supporting plate and a fourth power member, the supporting plate is located below the base, and the fourth power member is used to drive the supporting plate to extend toward or retract toward the fin;

[0076] The clamping member comprises a clamping claw and a fifth power member, and the fifth power member drives the connecting clamping claw so that the fin is clamped and fixed between the plurality of clamping members.

[0077] Specifically, the clamping jaw 302 includes a base 3021 connected to the output end of the manipulator 301, and a plurality of clamping components 3022 disposed on the base 3021. The base 3021 includes a substrate and a connector, the substrate is used for installing the plurality of clamping components 3022, and the connector is used for connecting the clamping jaw 302 to the manipulator 301. In this embodiment, the connector is a flange.

[0078] Among them, the fourth power component is a bottom supporting cylinder, the supporting plate is located below the base plate, and the bottom supporting cylinder is used to drive the supporting plate to extend toward the front of the base plate.

[0079] At the same time, two clamping members are respectively arranged on both sides of the substrate. Among them, the clamping claw comprises an L-shaped clamping claw, and the fifth power member comprises a first middle cylinder and a second middle cylinder. The L-shaped clamping claw has two inner sides, one of which is located at the front end of the substrate and is roughly parallel to the substrate, and the other inner side is located at one side of the substrate and is roughly parallel to the side of the substrate. The first middle cylinder is used to drive the L-shaped clamping claw to move relative to the side of the substrate, and the second middle cylinder is used to drive the L-shaped clamping claw to move forward and backward relative to the front end of the substrate.

[0080] During operation, the bottom support cylinder drives the support plate to extend to lift the air-conditioning fins. Multiple L-shaped claws are driven by the corresponding first middle cylinder to move from the side of the air-conditioning fins toward the air-conditioning fins and clamp the air-conditioning fins from both sides. At the same time, multiple L-shaped claws are also driven by the corresponding second middle cylinder to move from the front end of the air-conditioning fins toward the air-conditioning fins, and cooperate with the base plate to clamp the air-conditioning fins from the front and back directions, thereby clamping the air-conditioning fins.

[0081] Reference Figure 5 As shown, the clamping jaw 302 further includes a color mark detection sensor 3023 disposed above the base 3021 , and the color mark detection sensor 3023 is used to detect whether the side plates at both ends of the fin are missing.

[0082] Specifically, the color mark detection sensor 3023 is used to detect whether the side plate above the air conditioner fin is missing, so as to detect the integrity of the air conditioner fin. When it is detected that the side plate above the air conditioner fin is missing, the air conditioner fin is stopped from being sent into the tube expander 200. Only when it is detected that there is no missing, the air conditioner fin is sent into the tube expander 200.

[0083] In this embodiment, a sensor adjustment component is also included, which includes a top plate and an extension cylinder. The top plate is located above the substrate, the color mark detection sensor 3023 is installed on the top plate, and the extension cylinder is set on the substrate to drive the top plate to extend toward the side of the substrate away from the robot 301.

[0084] In addition, in other embodiments, in order to adapt the clamping jaws 302 to clamp air-conditioning fins of different heights, the sensor adjustment assembly also includes a lifting cylinder, which is arranged on the base plate and is used to drive the top plate to rise and fall relative to the base plate.

[0085] Specifically, when the clamp 302 clamps an air-conditioning fin of a higher height, the lifting cylinder can be used to drive the top plate to rise, thereby raising the color mark detection sensor 3023. When the clamp 302 clamps an air-conditioning fin of a lower height, the lifting cylinder can be used to drive the top plate to descend, thereby ensuring that the color mark detection sensor 3023 and the air-conditioning fin always maintain an appropriate height, which is beneficial for maintaining the accuracy of the detection results of the color mark detection sensor 3023.

[0086] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A clamping mechanism, characterized in that: include: Back panel; A clamping assembly, the clamping assembly comprising a limiting plate and a clamping driver, the clamping driver being used to drive the limiting plate to approach or move away from the back plate, so as to limit or release the fin between the back plate and the limiting plate; A locking assembly, wherein the locking assembly is used to lock and limit the limit plate so that the limit plate can be maintained at a limit position for limiting the position of the fin; and The stopper is located between the limit plate and the back plate. When the limit plate is at the limit position, the stopper abuts against the limit plate and the back plate respectively, so that there is a gap between the limit plate and the fin for the fin to expand and deform.

2. The clamping mechanism according to claim 1, characterized in that: There are at least two clamping assemblies, and at least two of the clamping assemblies are arranged along the extension direction of the back plate; Each of the clamping components is locked and limited by an independent locking component; Alternatively, two adjacent clamping assemblies share the locking assembly for locking and limiting.

3. The clamping mechanism according to claim 2, characterized in that: The clamping assembly includes a plurality of limit plates, and the plurality of limit plates are spaced apart and distributed along the height direction of the back plate.

4. The clamping mechanism according to claim 2, characterized in that: The clamping drive member includes a rotating frame, a rotating shaft and a first power member. The rotating frame and the first power member are arranged on the back plate. The rotating shaft is rotatably installed on the rotating frame. The first power member is drivingly connected to the rotating shaft. The limiting plate is fixedly arranged on the rotating shaft.

5. The clamping mechanism according to claim 2, characterized in that: The two adjacent clamping assemblies share the locking assembly for locking and limiting, and the locking assembly includes a lock buckle, a second power member and a lock tongue. The lock buckle is arranged on one of the clamping assemblies, and the second power member is arranged on the other clamping assembly. The second power member is driven to connect the lock tongue, and the second power member is used to drive the lock tongue to be inserted into the lock buckle to lock the two limit plates of the two clamping assemblies.

6. The clamping mechanism according to claim 5, characterized in that: The locking tongue has an inserting end in an oblique wedge shape, and the locking buckle has an inserting cavity matched with the inserting end.

7. The clamping mechanism according to any one of claims 1 to 6, characterized in that: The clamping mechanism further comprises a pre-positioning component arranged on the back plate, and the pre-positioning component is used for pre-positioning the fin to the back plate.

8. The clamping mechanism according to claim 7, characterized in that: There are two pre-positioning components, which are arranged opposite to each other and at a distance. The pre-positioning components include a positioning member and a third power member, which is driven and connected to the positioning member. The third power member is used to drive the positioning member to move so as to limit or release the fin located between the two positioning members.

9. A tube expansion device, characterized in that: include: Tube expansion machine; as well as The clamping mechanism according to any one of claims 1 to 8 is provided in the tube expander.

10. The tube expansion device according to claim 9, characterized in that: The tube expansion device also includes a transport mechanism for loading and unloading fins from the tube expander, and the transport mechanism includes a manipulator and a clamping claw arranged at the output end of the manipulator.

11. The tube expansion device according to claim 10, characterized in that: The clamping claw comprises a base connected to the output end of the manipulator, and a clamping component arranged on the base.

12. The tube expansion device according to claim 11, characterized in that: The clamping parts are provided in plurality, and the plurality of clamping parts include a lifting part arranged below the base and a plurality of clamping parts respectively arranged on both sides of the base; The lifting member includes a supporting plate and a fourth power member, the supporting plate is located below the base, and the fourth power member is used to drive the supporting plate to extend toward or retract the fin; The clamping member comprises a clamping claw and a fifth power member, and the fifth power member drives and connects the clamping claw so that the fin is clamped and fixed between the plurality of clamping members.

13. The tube expansion device according to claim 11, characterized in that: The clamping jaw further comprises a color mark detection sensor disposed above the base, and the color mark detection sensor is used to detect whether the side plates at both ends of the fin are missing.

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