Heat exchanger production line

A heat exchanger production line, comprising:

• support frame;
• a fin conveying line mounted on the support frame, wherein at least a fin storing-fetching station, an end plate mounting station, a pipe inserting station, and a nitrogen charging station are arranged along a conveying direction of the fin conveying line;
• a fin storing-fetching device located at one end of the fin conveying line, wherein the fin storing-fetching device comprises:
• a storing-fetching bracket having a storage space formed therein;
• a bottom plate horizontally arranged in the storage space of the storing-fetching bracket, wherein the bottom plate comprises a plurality of fin stacking pins vertically arranged on the bottom plate, and a first end of each fin stacking pin is fixed on the bottom plate;
• a lifting support plate arranged parallel to and above the bottom plate, wherein the lifting support is configured to reciprocate along a height direction of the storing-fetching bracket;
• a plurality of through holes are formed in the lifting support plate, the plurality of fin stacking pins respectively pass through the plurality of through holes, and a second end of each fin stacking pin extends out of a side of the lifting support plate away from the bottom plate, wherein each fin stacking pin is configured such that:
• when a plurality of fins fall into the storage space, the second end of the fin stacking pin is inserted into an insertion hole of a corresponding fin, wherein the fins strung in series by fin stacking pin form one fin stack;
• and
• a feeding robot configured to transfer the fin stack from the lifting support plate to the fin storing-fetching station when the lifting support plate lifts the fin stack to a target height;
• wherein the feeding robot comprises:
• a feeding robot body;
• and
• a feeding clamp arranged on the feeding robot body, wherein the feeding clamp comprises:
• a clamping power member, and a first feeding clamping member and a second feeding clamping member that are symmetrically arranged;
• the clamping power member is configured to control a distance between the first feeding clamping member and the second feeding clamping member;
• wherein the first feeding clamping member comprises a first feeding clamping jaw, the second feeding clamping member comprises a second feeding clamping jaw, a first positioning recess with an opening facing the second feeding clamping jaw is formed on the first feeding clamping jaw, a second positioning recess with an opening facing the first feeding clamping jaw is formed on the second feeding clamping jaw;
• when first feeding clamping jaw and the second feeding clamping jaw clamp the fin stack under an action of the clamping power member, two ends of a positioning pin inserted in the fin stack are respectively inserted into the first positioning recess and the second positioning recess;
• wherein the positioning pin is inserted into an insertion port of each fin in the fin stack by a positioning pin inserting robot after the fin stack is formed;
• after the positioning pin passes through the insertion port of each fin in the fin stack, a first end of the positioning pin is supported on the lifting support plate, and a second end of the positioning pin is exposed above the fin stack, so that the first end of the positioning pin and the second end of the positioning pin are capable of being clamped in the first positioning recess and the second positioning recess, respectively;
• an end plate mounting device corresponding to the end plate mounting station, wherein the end plate mounting device is configured to mount end plate members to both ends of the fin stack after the fin conveying line conveys the fin stack from the fin storing-fetching station to the end plate mounting station;
• wherein the end plate mounting device comprises at least two end plate mounting robots, which are symmetrically arranged on both sides of the fin conveying line, and each end plate mounting robot comprises:
• an end plate mounting robot body;
• a connecting beam mounted on the end plate mounting robot body, wherein a clamping power member is provided in the connecting beam, and a first telescopic end and a second telescopic end are formed on two ends of the clamping power member, respectively;
• two end plate clamps respectively provided on the first telescopic end and the second telescopic end, wherein the two end plate clamps are configured to move towards or away from each other under an action of the clamping power member to clamp or release the end plate member;
• and
• a pushing member mounted on the connecting beam, wherein the pushing member is configured to push the end plate member clamped in the end plate clamps to mount the end plate member to the fin stack;
• a pipe inserting device corresponding to the pipe inserting station, wherein the pipe inserting device comprises a pipe inserting robot, the pipe inserting robot is configured to insert a pipe member into the fin stack after the end plate member is mounted and the fin conveying line conveys the fin stack to the pipe inserting station;
• wherein the pipe inserting robot comprises a pipe inserting robot body and a pipe inserting clamp, the pipe inserting clamp is connected to the pipe inserting robot body and comprises two spaced pipe inserting assemblies;
• each of the pipe inserting assemblies comprises a middle connecting portion and at least one pipe gripper arranged on the middle connecting portion;
• the pipe inserting device grips the pipe member through the pipe gripper and inserts the pipe member into the fin stack under driving of the pipe inserting robot body;
• and
• a nitrogen charging device corresponding to the nitrogen charging station, wherein the nitrogen charging device comprises a nitrogen charging apparatus, a nitrogen charging docking member, and a nitrogen charging robot, wherein the nitrogen charging robot is configured to clamp the nitrogen charging docking member to dock the nitrogen charging docking member with the pipe member of the fin stack, and the nitrogen charging apparatus charges nitrogen into the pipe member through the nitrogen charging docking member.