A suspension basket and compressor casing welding production line

Abstract

The present invention relates to a hanging basket and a compressor housing welding production line. The compressor housing welding production line described in the present invention includes an upper housing production line for producing an upper housing, the tail end of which is provided with a feeding device, and a lower housing production line for producing a lower housing, the tail end of which is provided with a feeding station, and a hanging chain system includes a plurality of hanging baskets, the hanging baskets move along a preset track, and when passing through the feeding device, the feeding device pushes the upper housing into the accommodating cavity, and when passing through the feeding station, the foot plate of the lower housing is clamped into the accommodating slot manually or by a mechanical arm. The compressor housing welding production line described in the present invention has the advantages of easy maintenance and debugging and high production efficiency.

Description

Technical Field

[0001] The invention relates to the field of compressor production, in particular to a hanging basket and a compressor shell welding production line. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system and provides power for refrigeration. At present, the shell components of the compressor are usually composed of two half shells that are welded to the tube body and other parts respectively, and then welded together to form a complete shell with an accommodating cavity inside. However, due to the complex structure of the lower shell, it is necessary to weld a variety of spare parts in the actual production process, which makes the production line of the lower shell more complicated and the production line cycle slower. In addition, repeated adjustments and equipment debugging are required during the actual installation process, which brings many inconveniences to the actual production line installation and production. In addition, the existing suspension chain system can usually only place a single part on the same hook or hanging basket. When it is used to simultaneously transfer the upper shell and the lower shell, it is easy to cause parts confusion, which in turn affects the welding production efficiency. At present, there are also hanging parts on the market that can transport multiple parts at the same time. For example, the patent with application number CN202120661174.8 and titled "A hanging chain for precision casting shell production line" discloses a hanging rack, which has multiple hanging racks arranged at intervals in the vertical direction on the same hanging part, so that multiple parts can be hung at the same time. However, this structure occupies a large space in the vertical direction and is prone to interfere with the production line in the actual production process. Summary of the invention

[0003] Based on this, the object of the present invention is to provide a suspension basket and compressor casing welding production line, which has the advantages of easy maintenance and debugging and high production efficiency.

[0004] A hanging basket comprises a supporting plate and a hanging arm arranged on the supporting plate, wherein a fence portion is arranged on the supporting plate and forms a receiving cavity with the upper surface of the supporting plate, and a lower supporting plate is arranged at the bottom of the supporting plate, and the lower supporting plate is spaced apart from the supporting plate to form a receiving slot.

[0005] The hanging basket described in the present invention has a simple structure and a small size, which greatly reduces the risk of interference during movement. In addition, in addition to being able to hold two parts at the same time, the structure also distinguishes the placement positions of the two parts, which is beneficial for subsequent processes to distinguish and judge the two parts, thereby improving production efficiency.

[0006] Furthermore, a material taking notch is provided on the supporting plate to facilitate material unloading.

[0007] Furthermore, the lower support plate is provided with a limiting boss, and the limiting boss extends toward the receiving card slot to limit the material inserted into the receiving card slot to prevent it from falling.

[0008] The present invention also discloses a compressor housing welding production line, comprising:

[0009] An upper shell production line, which is used to produce the upper shell and has a feeding device at its tail end;

[0010] A lower shell production line, which is used to produce the lower shell and has a loading station at its tail end;

[0011] A suspension chain system, wherein the suspension chain system comprises a plurality of suspension baskets as described above, wherein the suspension baskets move along a preset trajectory, and when passing through the loading device, the loading device pushes the upper shell into the accommodating cavity, and when passing through the loading station, the foot plate of the lower shell is clamped into the accommodating slot manually or by a robotic arm.

[0012] The compressor casing welding production line sequentially places the upper casing and the lower casing with completed component welding in pairs on the hanging basket, and transports them to subsequent workstations through a hanging chain system, thereby reducing the error rate of picking up the casing during subsequent welding and improving production efficiency.

[0013] Furthermore, the feeding device comprises:

[0014] A follow-up clamping mechanism, which is arranged on one side of the preset track and includes a clamping assembly and a driving module. The clamping assembly clamps the hanging basket for stability and is driven by the driving module to follow the hanging basket during the clamping process. After the loading is completed, the clamping assembly releases the hanging basket and is reset by the driving module.

[0015] A pushing mechanism pushes the upper shell component into the hanging basket clamped by the follower clamping mechanism.

[0016] This structure can realize automatic loading, save labor costs, and solve the problem of missing materials easily caused by manual loading. In addition, this device does not need to use large robots to load materials, has a simple structure and is easy to debug, and its production cycle is also greatly shortened compared with the previous one, achieving the goal of keeping the equipment cost low while improving production efficiency, effectively alleviating the burden on enterprises.

[0017] Furthermore, a clamping portion is provided on the hanging basket, and the clamping portion is connected to the fence portion. The clamping assembly clamps the clamping portion to improve the stability of the hanging basket.

[0018] Furthermore, it also includes a control device, which includes an encoder, and the encoder is used to detect the linear velocity of movement of the suspension chain system, so as to achieve real-time matching of the movement speed of the drive module with the linear velocity of movement.

[0019] Furthermore, the lower shell production line includes a plurality of conveying lines connected in series and a shell adjustment device, a pin welder, a machine foot welder, a shell rotating device, a terminal welder, a protection frame welder, a shell flipping device and a pipe bending device arranged in sequence along the conveying direction;

[0020] The housing adjustment device is used to adjust the orientation of the lower housing to prevent the lower housing from reversely entering the pin welding machine;

[0021] The pin welder and the machine foot welder are used to weld the pins and the machine foot to the lower housing, respectively;

[0022] The shell rotating device is used to rotate the lower shell 90 degrees along the axial direction;

[0023] The terminal welding machine and the protection frame welding machine are used to weld the terminal and the protection frame to the lower shell respectively;

[0024] The shell flipping device is clamped between the two conveying lines, and includes a base frame, a rotating mechanism, a flipping arm and a clamping mechanism. The rotating mechanism is arranged on the base frame, one end of the flipping arm is connected to the rotating mechanism, and the other end extends outward and is connected to the clamping mechanism. The rotating mechanism drives the clamping mechanism to reciprocate between the two conveying lines through the flipping arm, so as to realize the transfer of the shell workpiece between the two conveying lines. The two conveying lines are located on both sides of the rotating mechanism and are at the same or different levels.

[0025] The lower shell production line also includes at least one double-headed pipe welding machine, which is arranged between the shell rotating device and the protection frame welding machine, and includes a second base, a rotating turntable, a support frame and two pipe body welding devices. The support frame is arranged on the second base through the rotating turntable, and the pipe body welding devices are symmetrically arranged on both sides of the support frame, and rotate 180° with the rotating turntable to realize the conversion of the two pipe body welding devices between the welding and grinding stations;

[0026] The tube bending device is used to bend the tube body.

[0027] The lower shell production line is easy to debug and has high production efficiency. Its production cycle can be increased from the fastest 5S / piece of the existing production line to 3.9S / piece.

[0028] Furthermore, the pin welder includes an electric control box, a welding part, a pin feeding part and a first base, the electric control box and the welding part are fixedly arranged on the first base, and the pin feeding part is arranged on the first base through a linear guide rail so as to be movable relative to the welding part. The structure improves the efficiency of adjusting the relative position of the welding part and the pin feeding part, and facilitates maintenance personnel to operate the inside of the pin welder through relative movement.

[0029] Furthermore, the tube body welding device includes an upper machine head arranged on the support frame, a driving cylinder arranged on the upper machine head, an upper electrode head driven by the driving cylinder to reciprocate in the vertical direction, and a feeding assembly for feeding the copper tube to the upper electrode head, the feeding assembly includes a first material guide mechanism, a second material guide mechanism and a material shifting mechanism, the first material guide mechanism is arranged on the outside of the driving cylinder, the material shifting mechanism includes a material shifting cylinder and a material receiving block, the material shifting cylinder drives the material receiving block to reciprocate between the material outlet of the first material guide mechanism and the material feed port of the second material guide mechanism, so that the material enters from the first material guide mechanism, and after the material receiving block moves, it slides from the second material guide mechanism to the upper electrode head. The structure is simple in structure and can reduce manufacturing costs by feeding on the outside of the cylinder. At the same time, the structure is convenient for disassembly and installation of the device, easy for maintenance and debugging, and can improve production efficiency.

[0030] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A top view of the compressor housing welding production line;

[0032] Figure 2 The overall structure diagram of the compressor lower shell welding production line;

[0033] Figure 3 is a structural diagram of the housing adjustment device;

[0034] Figure 4 is a structural diagram of the pin welding machine;

[0035] Figure 5 is a structural diagram of the housing rotating device;

[0036] Figure 6 A layout diagram of the shell turning device and the conveying line;

[0037] Figure 7 is a structural diagram of the housing flipping device;

[0038] Figure 8 The figure is the overall structure diagram of the double-head pipe welding machine;

[0039] Fig. 9 It is a partial structural diagram of the double-head pipe welding machine;

[0040] Fig.10 is a structural diagram of the pipe body welding device;

[0041] Fig.11 is a structural diagram of the feeding assembly;

[0042] Fig.12 is a structural diagram of the feeding device;

[0043] Fig.13 It is a structural diagram of the hanging basket;

[0044] Fig.14 It is the assembly drawing of the hanging basket, the upper shell and the lower shell;

[0045] Description of reference numerals:

[0046] 1. Conveyor line; 11. Flat top chain; 12. Installation space;

[0047] 2. Shell adjustment device; 21. Adjustment bracket; 22. Detection mechanism; 23. First lifting and rotating mechanism;

[0048] 3. Pin welding machine; 31. Electric control box; 32. Welding part; 33. Pin feeding part; 34. First base;

[0049] 4. Machine foot welding machine;

[0050] 5. Shell rotating device; 51. Linear drive module; 52. Clamping mechanism; 53. Second lifting and rotating mechanism;

[0051] 6. Terminal welding machine; 7. Protective frame welding machine;

[0052] 8. Shell turning device; 81. Third chassis; 82. Motor; 83. Cam divider; 84. Turning arm; 841. Divider connecting plate; 842. Cylinder mounting plate; 843. Reinforcement rib; 85. Clamping mechanism; 851. Parallel claw cylinder; 852. Cylinder sensor; 853. Clamping plate; 854. Buffer pad;

[0053] 9. Double-head pipe welding machine; 91. Second base; 92. Frame; 921. First column; 922. Second column; 923. Crossbeam; 924. Support rod; 925. Water-gas rotary joint; 926. Water pipe; 927. Air pipe; 93. Rotating turntable; 94. Support frame; 95. Pipe welding device; 951. Upper machine head; 952. Driving cylinder; 953. Upper electrode head; 954. First material guide mechanism; 9541. First material guide pipe; 9542. First feeding head; 9543. Clamping piece; 955. Second material guide mechanism; 9551. Second material guide pipe; 9552. Second feeding head; 956. Material transfer mechanism; 9561. Material transfer cylinder; 9562. Material receiving block; 957. Lower electrode; 96. Material loading mechanical arm; 97. Material unloading mechanical arm;

[0054] 10. Pipe bending device; 20. Pedestrian overpass;

[0055] 30. Suspension chain system; 301. Suspension basket; 3011. Support plate; 30111. Fence part; 30112. Removal notch; 30113. Clamping part; 3012. Suspension arm; 3013. Lower support plate; 30131. Limiting boss;

[0056] 40. Upper shell production line; 401. Follow-up clamping mechanism; 4011. Clamping assembly; 4012. Driving module; 402. Lifting mechanism; 403. Pushing mechanism;

[0057] 50. Cleaning machine; 60. Inclined slide; 70. Material distribution conveyor line; 80. Positioning mechanism. DETAILED DESCRIPTION

[0058] See also Figure 1-14 , Figure 1 A top view of the compressor housing welding production line; Figure 2 The overall structure diagram of the compressor lower shell welding production line; Figure 3 is a structural diagram of the housing adjustment device; Figure 4 is a structural diagram of the pin welding machine; Figure 5 is a structural diagram of the housing rotating device; Figure 6 A layout diagram of the shell turning device and the conveying line; Figure 7 is a structural diagram of the housing flipping device; Figure 8 The figure is the overall structure diagram of the double-head pipe welding machine; Fig. 9 It is a partial structural diagram of the double-head pipe welding machine; Fig.10 is a structural diagram of the pipe body welding device; Fig.11 is a structural diagram of the feeding assembly; Fig.12 is a structural diagram of the feeding device; Fig.13 It is a structural diagram of the hanging basket; Fig.14 It is the assembly drawing of the hanging basket, the upper shell and the lower shell.

[0059] The present invention discloses a compressor shell welding production line, including an upper shell production line, a lower shell production line and a suspension chain system. The lower shell production line includes a plurality of conveyor lines 1 connected in series and a shell adjustment device 2, a pin welder 3, a machine foot welder 4, a shell rotating device 5, a terminal welder 6, a protection frame welder 7, a shell flipping device 8 and a pipe bending device 10 arranged in sequence along the conveying direction of the conveyor line 1. The production line also includes at least one double-headed pipe welder 9, which is arranged between the shell rotating device 5 and the protection frame welder 7.

[0060] The conveyor line 1 comprises two flat top chains 11 which are spaced apart from each other, and an installation space 12 is formed between the flat top chains 11. The flat top chains 11 have the advantages of low noise and high conveying speed.

[0061] The shell adjusting device 2 is used to adjust the direction of the lower shell so that the lower shell enters the subsequent processing process at a specified angle to prevent the lower shell with the wrong direction from entering the next process. The shell adjusting device 2 can have various structural forms, such as using a robot to grasp and adjust.

[0062] In this embodiment, the shell adjustment device 2 includes an adjustment bracket 21, a stop mechanism (not shown), a detection mechanism 22 and a first lifting and rotating mechanism 23. The adjustment bracket 21 is arranged across the conveyor line 1, and the stop mechanism is arranged in the installation space 12 to block and intercept the lower shell. The detection mechanism 22 is arranged on the adjustment bracket 21 and is located on one side of the conveyor line 1, and a hole for welding a terminal is opened at one end of the lower shell.

[0063] The detection mechanism 22 detects the positioning hole. If the positioning hole faces forward, the angle of the lower shell is correct. If the detection mechanism 22 does not detect the positioning hole facing forward, the angle of the lower shell needs to be adjusted.

[0064] The first lifting and rotating mechanism 23 is arranged in the installation space 12. The top of the first lifting and rotating mechanism 23 is provided with an electromagnetic adsorption head whose size is smaller than the spacing of the flat top chain 11. The electromagnetic adsorption head adsorbs and fixes the lower shell. When the angle of the lower shell needs to be adjusted, the first lifting and rotating mechanism 23 drives the electromagnetic adsorption head to move upward and pushes the lower shell to be adjusted away from the conveyor line 1. At this time, the first lifting and rotating mechanism 23 rotates the lower shell until the detection mechanism 22 detects the forward positioning hole and the first rotating platform stops rotating. The first lifting and rotating mechanism 23 drives the electromagnetic adsorption head to move downward so that the lower shell falls onto the conveyor line 1 and moves forward with the conveyor line 1. The device has a simple and compact structure and low cost.

[0065] The pin welding machine 3 is used to weld pins (or convex pins, compression spring pillars) to the lower shell, and includes an electric control box 31, a welding part 32, a pin feeding part 33 and a first base 34. The electric control box 31 is used to control the welding part 32 and the pin feeding part 33. The structure of the welding part 32 can be specifically referred to as a convex pin online automatic welding machine disclosed in the patent CN202122021733.1, and the structure of the pin feeding part 33 can be specifically referred to as a convex pin automatic feeding device with application number CN202122024011.1. The electric control box 31 and the welding part 32 are fixedly arranged on the first base 34, and the nail feeding part 33 is connected to the first base 34 through a linear guide rail. During maintenance, the nail feeding part 33 can move backward along the linear guide rail relative to the welding part 32, which is convenient for maintenance personnel to enter between the nail feeding part 33 and the welding part 32 for maintenance. At the same time, it is avoided that the relative position between the nail feeding part 33 and the welding part 32 needs to be adjusted after the position adjustment. Only the machine can be started by pushing back along the linear guide rail, which shortens the maintenance time. The maximum distance between the nail feeding part 33 and the welding part 32 after moving backward is 500mm.

[0066] The machine foot welder 4 is used to weld the machine foot (or foot plate) to the lower shell, and its specific structure can be seen in a foot plate positioning, clamping and welding device with application number CN202121991925.9.

[0067] The shell rotating device 5 is used to rotate the lower shell 90 degrees along the axis direction, and includes a horizontally arranged linear drive module 51, a clamping mechanism 52 driven by the linear drive module 51, and a second lifting and rotating mechanism 53. The linear drive module 51 drives the clamping mechanism 52 to the conveyor line 1, and the clamping mechanism 52 clamps the lower shell, then the clamping mechanism 52 returns to its position and places the lower shell on the second lifting and rotating mechanism 53, at which time the second lifting and rotating mechanism 53 receives the lower shell and moves it downward away from the clamping mechanism 52, and then drives the lower shell to rotate 90 degrees along the axis direction, and finally the second lifting and rotating mechanism 53 returns to its position and places the lower shell on another conveyor line 1. The shell rotating device 5 can reduce the center of gravity height of the shell during rotation and improve stability.

[0068] The double-headed pipe welding machine 9 can be set according to the actual structure of the lower shell. In this embodiment, there are three double-headed pipe welding machines 9, which respectively weld the intake pipe, process pipe and exhaust pipe. The sequence of these three double-headed pipe welding machines 9 can be adjusted according to the structure of the lower shell.

[0069] The double-head pipe welding machine 9 includes a second base 91, a frame 92, a rotating turntable 93, a support frame 94 and two pipe body welding devices 95. The support frame 94 is arranged on the second base 91 through the rotating turntable 93, the frame 92 divides the space where the equipment is located into a working area and a maintenance area, and the pipe body welding devices 95 are symmetrically arranged on both sides of the support frame 94, so that the two pipe body welding devices 95 are respectively located in the working area and the maintenance area, and exchange positions with each other as the rotating turntable 93 rotates.

[0070] The tube welding device 95 comprises an upper machine head 951, a driving cylinder 952 disposed on the upper machine head 951, an upper electrode head 953 driven by the driving cylinder 952 to reciprocate in the vertical direction, a feeding assembly for feeding the copper tube to the upper electrode head 953, and a lower electrode 957 corresponding to the upper electrode head 953. A first blanking port is provided in the upper machine head 951.

[0071] The feeding assembly includes a first material guiding mechanism 954, a second material guiding mechanism 955, a material shifting mechanism 956 and a control assembly (not shown). The material enters from the first material guiding mechanism 954, moves through the material shifting mechanism 956, and then slides out from the second material guiding mechanism 955.

[0072] The first material guide mechanism 954 is arranged on the outside of the driving cylinder 952, and includes a first material guide pipe 9541, a first feed head 9542 and a clamp 9543. The first material guide pipe 9541 is a hollow transparent pipe, and its inner diameter is larger than the outer diameter of the material. The discharge end of the first material guide pipe 9541 penetrates into the upper machine head 951. In order to improve the stability of feeding, the feeding end of the first material guide pipe 9541 is provided with a first feed head 9542, and the first feed head 9542 is provided with a tapered hole that gradually narrows from the outside to the inside, and the tapered hole is connected to the first material guide pipe 9541. The clamp 9543 is detachably arranged on the upper machine head 951, and the clamp 9543 fixes and clamps the first material guide pipe 9541. The first material guiding mechanism 954 changes the traditional structure of being arranged at the central axis of the driving cylinder 952, thereby reducing the structural complexity and production cost of the driving cylinder, and at the same time facilitates the observation of stuck materials and realizes rapid maintenance when the materials are stuck.

[0073] The second material guide mechanism 955 is coaxial with the driving cylinder 952, and includes a second material guide pipe 9551 and a second feed head 9552. The second material guide pipe 9551 is a hollow transparent pipe, and its inner diameter is larger than the outer diameter of the material. The feed end of the second material guide pipe 9551 is connected to the first blanking port, and its discharge end penetrates into the discharge head of the tube body welding device 95, so that the second material guide pipe 9551, the first blanking port and the discharge head are located on the same vertical axis. A tapered hole that gradually narrows from the outside to the inside is opened in the second feed head 9552, and the large-diameter end of the tapered hole corresponds to the first blanking port, and the small-diameter end is connected to the second material guide pipe 9551. The second material guide mechanism 955 and the first material guide mechanism 954 are split structures, which are easy to disassemble for material jam inspection and cleaning.

[0074] The material transfer mechanism 956 is arranged in the upper machine head 951, and includes a mounting base plate, a material transfer cylinder 9561, a material receiving block 9562 and a limit block. The mounting base plate is arranged in the upper machine head 951. A chute is provided on the mounting base plate, and a second material delivery opening corresponding to the first material delivery opening is also provided in the chute. The second material delivery opening is a conical hole, and its aperture gradually decreases in the direction of the first material delivery opening. The material transfer cylinder 9561 is horizontally arranged on the mounting base plate, and a material receiving block 9562 is provided at the output end of the material transfer cylinder 9561, so as to drive the material receiving block 9562 to reciprocate in the chute. The material receiving block 9562 is provided with a material receiving hole in the vertical direction, and the material receiving hole is composed of a coaxially arranged inlet cone and a material storage area. The inlet cone corresponds to the first material guide mechanism 954, and its aperture gradually decreases from the outside to the inside. A limit block is also provided on the chute, and the limit block is used to limit the position of the material receiving block 9562. The material moving mechanism 956 realizes the connection between the second material guiding mechanism 955 and the first material guiding mechanism 954, and by controlling the position of the material receiving block 9562, the first material guiding mechanism 954 can be cleaned and the material jammed can be repaired without disassembly, thereby improving the maintenance efficiency and reducing the downtime caused by maintenance.

[0075] The tube welding device 95 also includes a control component, which includes an in-place sensor, a first position sensor, and a second position sensor. A detection hole is provided in the horizontal direction on the material receiving block 9562, and the in-place sensor corresponds to the detection hole to determine whether the material receiving block 9562 is empty. A positioning block is also provided on the material receiving block 9562. When the first position sensor senses the positioning block, the material receiving hole is connected to the first material guide pipe 9541 and is located on the same axis. When the second position sensor senses the positioning block, the material receiving hole is connected to the second material guide pipe 9551 and is located on the same axis. The control component facilitates monitoring of the opening of the material.

[0076] The outer side of the upper machine head 951 is covered with a shell, which plays a protective role. The shell is provided with a window for observing whether there is any jamming inside.

[0077] The frame 92 includes a first column 921, a second column 922, a crossbeam 923 and a support rod 924. The first column 921 and the second column 922 are vertically arranged on both sides of the support frame 94, and the bottom ends thereof are connected to the second base 91. The crossbeam 923 connects the top ends of the first column 921 and the second column 922. The support rod 924 is coaxial with the rotation axis of the rotating turntable 93, one end of which is fixedly connected to the crossbeam 923, and the other end is rotatably connected to the support frame 94. Preferably, the first column 921, the second column 922 and the crossbeam 923 are located in the same vertical plane, and the plane is offset relative to the rotation axis of the rotating turntable 93 in a direction away from the maintenance area. A connecting frame is also arranged on the crossbeam 923, and the connecting frame connects the crossbeam 923 and the support rod 924.

[0078] The support frame 94 is provided with a water-gas rotary joint 925 coaxial with the rotating shaft of the rotating turntable 93. The water-gas rotary joint 925 is a rotary joint for both water and gas. The rotor of the water-gas rotary joint 925 is provided on the support frame 94, and the stator of the water-gas rotary joint 925 is connected to the support rod 924. The stator of the water-gas rotary joint 925 is provided with a water interface and a gas interface. The device also includes a water-gas pipeline assembly, and the water-gas pipeline assembly includes a water pipe 926 and an air pipe 927. One end of the water pipe 926 and the air pipe 927 are respectively connected to the external water supply and air supply system, and the other end is respectively connected to the water interface and the gas interface through the first column 921, the cross beam 923 and the connecting frame. There are four water pipes 926, including two water inlet pipes and two water return pipes.

[0079] The water and gas pipeline assembly is fixed to the frame 92 by a plurality of pressure plates, and the pressure plates include a fixing portion, an air pipe limiting portion and a water pipe limiting portion. The inner side of the fixing portion is fixedly connected to the frame 92, and an installation groove is provided on the outer side. The air pipe limiting portion is detachably arranged in the installation groove, and corresponding air pipe through-holes are provided on the air pipe limiting portion and the fixing portion. The air pipe 927 is passed through the air pipe through-hole, and the water pipe limiting portion is detachably arranged on the left and right sides of the fixing portion. Corresponding water pipe through-holes are provided on the water pipe limiting portion and the fixing portion, and the water pipe 926 is passed through the water pipe through-hole.

[0080] The frame 92 is also provided with a protective cover, which is provided on the second column 922 and the crossbeam 923. The power wires are passed through the protective cover, and a partition is provided inside the protective cover, which is used to divide the various power wires into areas. The frame 92 and the support frame 94 are also provided with a plurality of cable connectors, which are used to pass the power wires. The cable connectors are provided on the connecting frame and the support frame 94 to connect the power wires to the power source.

[0081] The device further comprises a control box, which is disposed on the support frame 94 and located in the maintenance area, and is used for controlling the operation of the device.

[0082] The double-head pipe welding machine 9 also includes a loading robot arm 96 and a unloading robot arm 97, which are arranged on the second base 91 to facilitate positioning of the robot arm and the welding station during the production line installation process. The loading robot arm 96 transports the lower shell from the conveyor line 1 to the welding station, and the unloading robot arm 97 transports the lower shell from the welding station to the conveyor line 1.

[0083] The two pipe body welding devices are respectively the first welder and the second welder. When in use, the rotary turntable rotates so that the first welder is located in the working area and performs welding operations on parts, and the second welder is located in the maintenance area waiting for maintenance personnel to perform maintenance. When the first welder reaches a certain welding amount, the rotary turntable rotates 180 degrees to exchange the positions of the first welder and the second welder, even if the second welder is located in the working area and performs welding operations on parts, the first welder is located in the maintenance area waiting for maintenance personnel to perform maintenance. Therefore, the equipment can realize the maintenance work of maintenance personnel while welding, without stopping, thereby improving production efficiency. Since in this equipment, not only the welding head is rotated, in addition to considering the problem of position exchange, it is also necessary to consider the connection problems of water, electricity, and gas lines to avoid interference or the line being clamped off. At this time, water and gas flow into the stator of the water-gas rotary joint through the water pipe and the gas pipe, and this part of the water pipe and the gas pipe remain fixed together with the stator. Since the water and gas circuits in the stator are connected to the rotor, and the water supply mechanism and gas supply mechanism of the welding machine are connected to the interface on the rotor, when the rotor rotates with the support frame, the water and gas can be connected. The power wire is inserted into the protective cover and connected to the welding machine through a cable connector. During installation, the power wire retains a certain free length so that it can be deformed during the rotation process to prevent it from being broken. The loading and unloading mechanical arms can load and unload the lower shell at the same time, thereby saving production time and speeding up the production rhythm.

[0084] The terminal welding machine 6 is a commonly used welding equipment in this field. For example, you can refer to a terminal automatic welding machine with patent application number CN202121990104.3. The protective frame welding machine 7 is a commonly used welding equipment in this field. For example, you can refer to a relay bracket online automatic welding machine with patent application number CN202121824047.1, which will not be repeated here.

[0085] The shell flipping device 8 is sandwiched between the two conveying lines 1, and includes a third base frame 81, a rotating mechanism, a flip arm 84 and a gripping mechanism 85. The rotating mechanism is arranged on the third base frame 81, and its output end drives the flip arm 84 to rotate along a horizontal axis. The flip arm 84 is provided with a gripping mechanism 85, and the gripping mechanism 85 is used to clamp the shell component.

[0086] The rotating mechanism includes a motor 82 and a cam divider 83. The output end of the motor 82 is provided with a reducer. The motor 82 drives the cam divider 83 to rotate through the reducer. The cam divider 83 is installed on the base frame. The output end of the cam divider 83 is connected to one end of the flip arm 84.

[0087] The flip arm 84 includes a divider connecting plate 841 and a cylinder mounting plate 842 connected in an L shape, and a reinforcing rib 843. The divider connecting plate 841 is connected to the output end of the cam divider 83, and its length is designed according to the relative height difference and relative horizontal distance between the two stations before and after the flip. The reinforcing rib 843 is arranged at the connection between the divider connecting plate 841 and the cylinder mounting plate 842 to strengthen the structural strength of the flip arm 84, avoid deformation of the flip arm 84 after long-term operation, and extend the service life.

[0088] The gripping mechanism 85 can have a variety of structural forms. In this embodiment, it includes a parallel air gripper cylinder 851, a cylinder sensor 852, a clamping plate 853 and a buffer pad 854. The parallel air gripper cylinder 851 is arranged on the cylinder mounting plate 842, and the clamping jaws at both ends can be extended and retracted at the same time. Two parallel mounting grooves are provided on the shell component of the parallel air gripper cylinder 851 along the extension and retraction direction of the clamping jaws. The cylinder sensor 852 is placed in the mounting groove, including an initial position sensor and a terminal position sensor. The initial position sensor is used to detect whether the clamping jaw is in place when clamping the shell component, and the terminal position sensor is used to detect whether the clamping jaw is in place when releasing the shell component. The clamping jaw is provided with a clamping plate 853 for clamping the shell component, and a buffer pad 854 is provided on the inner side of the clamping plate 853, so as to reduce the damage to the shell component during the clamping process, and at the same time increase the friction between the clamping plate 853 and the shell component, thereby improving the stability of the flipping.

[0089] Preferably, the gripping mechanism 85 further includes an adjusting bolt and an adjusting bolt mounting plate. The adjusting bolt mounting plate is arranged on the cylinder mounting plate 842, and one end of the adjusting bolt extends outward along the extension direction of the cylinder. The adjusting bolt is arranged at the suspended end of the adjusting bolt mounting plate and corresponds to the clamping claw of the parallel claw cylinder 851, thereby controlling the maximum stroke of the clamping claw. A plurality of mounting holes are provided on the adjusting bolt mounting plate along the extension direction of the cylinder, and the maximum stroke can be adjusted according to actual production requirements.

[0090] In order to improve the reliability of the flipping device, the device also includes a flip sensor. There are two flip sensors and they are respectively arranged on the cam divider 83 through the flip sensor mounting plates. A positioning block is arranged on the divider connecting plate 841. When the clamping mechanism 85 is in place, the positioning block corresponds to the flip sensor, and the flip sensor can output a signal that the flipping is in place.

[0091] When in use, the rotating mechanism drives the clamping mechanism to reciprocate between the two conveying lines through the flipping arm. The two conveying lines are located on both sides of the rotating mechanism and are at the same or different levels. The flipping device operates stably, is not easy to get stuck or misplaced, and does not need to achieve the same function through a combination of multiple cylinders, which reduces the control difficulty. At the same time, the device does not need to lift the material during the flipping process, which reduces the operation action and speeds up the production rhythm.

[0092] The pipe bending device is used to bend the pipe body. A loading station is provided at the tail end of the lower shell production line, and a mechanical arm can be provided at the loading station or an operator can be arranged to load the lower shell. The pedestrian overpass is arranged across the lower shell production line to facilitate maintenance personnel to walk back and forth on both sides of the production line.

[0093] The suspension chain system 30 includes a plurality of suspension baskets 301, and the suspension baskets 301 move along a preset track. The suspension baskets 301 include a support plate 3011 and a suspension arm 3012 arranged on the support plate 3011. The support plate 3011 is provided with a fence portion 30111, which forms a receiving cavity with the upper surface of the support plate 3011, and a lower support plate 3013 is provided at the bottom of the support plate 3011. The lower support plate 3013 is spaced apart from the support plate 3011 to form a receiving slot. A material taking notch 30112 is provided on the support plate 3011 to facilitate material unloading. The lower support plate 3013 is provided with a limiting boss 30131, and the limiting boss 30131 extends toward the receiving slot to limit the material stuck in the receiving slot to prevent it from falling. The hanging basket 301 is provided with a clamping portion 30113 , and the clamping portion 30113 is connected to the fence portion 30111 .

[0094] When passing through the loading device, the loading device pushes the upper shell into the accommodating cavity, and when passing through the loading station, the foot plate of the lower shell is clamped into the accommodating slot manually or by a mechanical arm. The suspension chain system 30 also includes a control device, which includes an encoder and a controller. The encoder is used to detect the linear velocity of the suspension chain system 30. After the controller obtains the linear velocity of the motion, it controls the drive module 4012, thereby achieving real-time matching between the motion velocity of the drive module 4012 and the linear velocity of the motion.

[0095] The upper shell production line 40 is used to produce the upper shell, and a feeding device is arranged at the tail end thereof. The feeding device comprises a follower clamping mechanism 401, a lifting mechanism 402 and a pushing mechanism. The follower clamping mechanism 401 is arranged on one side of the preset track, and comprises a clamping assembly 4011 and a driving module 4012. The clamping assembly 4011 clamps and stabilizes the clamping portion 30113, improves the stability of the hanging basket 301, and is driven by the driving module 4012 to follow the movement of the hanging basket 301 during the clamping process. After the loading is completed, the clamping assembly 4011 releases the hanging basket 301 and is reset by the driving module 4012. The lifting device absorbs and drives the upper shell to detach from the conveyor belt of the upper shell production line 40, and the pushing mechanism pushes the lifted upper shell into the hanging basket 301 clamped by the follower clamping mechanism 401.

[0096] The compressor shell welding production line also includes a cleaning machine 50. There are two cleaning machines 50, which clean the upper shell and the lower shell to be welded respectively to prevent residual stains from affecting the welding quality. After cleaning, the upper shell and the lower shell to be welded slide into the material distribution conveyor line 70 through the inclined slide 60. A guide mechanism can be provided on the inclined slide 60 to further limit the sliding direction of the shell. The material distribution conveyor line 70 sends the upper shell and the lower shell to the corresponding upper shell production line and the lower shell production line respectively. The upper shell production line and the lower shell production line are provided with a shifting mechanism 80 at the connection with the material distribution conveyor line 70. The shifting mechanism 80 pushes the upper shell or the lower shell moving on the material distribution conveyor line into the corresponding upper shell production line or the lower shell production line.

[0097] The compressor housing welding production line of the present invention adopts a linear layout to fully automatically complete the housing welding process, greatly reducing labor costs. At the same time, the production line has a simple structure, is easy to maintain, easy to debug, and has high production efficiency. Its production cycle can be increased from the fastest 5S / piece of the existing production line to 3.9S / piece.

[0098] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and the present invention is also intended to include these modifications and modifications.

Claims

1. A compressor housing welding production line, characterized in that: include: An upper shell production line, which is used to produce the upper shell and has a feeding device at its tail end; A lower shell production line, which is used to produce the lower shell and has a loading station at its tail end; A suspension chain system, the suspension chain system includes a plurality of suspension baskets, including a support plate and a suspension arm arranged on the support plate, the support plate is provided with a fence portion, which forms a receiving cavity with the upper surface of the support plate, and a lower support plate is provided at the bottom of the support plate, and the lower support plate is spaced apart from the support plate to form a receiving slot; The hanging basket moves along a preset track. When passing through the loading device, the loading device pushes the upper shell into the accommodating cavity. When passing through the loading station, the foot plate of the lower shell is clamped into the accommodating slot manually or by a mechanical arm. The feeding device includes a follow-up clamping mechanism and a pushing mechanism. The follow-up clamping mechanism is arranged on one side of the preset trajectory, and includes a clamping assembly and a driving module. The clamping assembly clamps the hanging basket for stability, and is driven by the driving module to follow the movement of the hanging basket during the clamping process. After the loading is completed, the clamping assembly releases the hanging basket and is reset by the driving module; the pushing mechanism pushes the upper shell component into the hanging basket clamped by the follow-up clamping mechanism.

2. A compressor casing welding production line according to claim 1, characterized in that: The supporting plate is provided with a material taking notch to facilitate material unloading.

3. A compressor casing welding production line according to claim 1, characterized in that: The lower support plate is provided with a limiting boss, and the limiting boss extends toward the receiving card slot to limit the material inserted into the receiving card slot to prevent it from falling.

4. A compressor casing welding production line according to claim 1, characterized in that: The hanging basket is provided with a clamping part, the clamping part is connected to the fence part, and the clamping assembly clamps the clamping part to improve the stability of the hanging basket.

5. The compressor casing welding production line according to claim 1, characterized in that: It also includes a control device, which includes an encoder. The encoder is used to detect the linear velocity of the movement of the suspension chain system, so as to achieve real-time matching between the movement velocity of the drive module and the linear velocity of the movement.

6. The compressor casing welding production line according to claim 1, characterized in that: The lower shell production line comprises a plurality of conveying lines connected in series and a shell adjustment device, a pin welder, a machine foot welder, a shell rotating device, a terminal welder, a protection frame welder, a shell turning device and a pipe bending device arranged in sequence along the conveying direction; The housing adjustment device is used to adjust the orientation of the lower housing to prevent the lower housing from reversely entering the pin welding machine; The pin welder and the machine foot welder are used to weld the pins and the machine foot to the lower housing, respectively; The shell rotating device is used to rotate the lower shell 90 degrees along the axial direction; The terminal welding machine and the protection frame welding machine are used to weld the terminal and the protection frame to the lower shell respectively; The shell flipping device is clamped between the two conveying lines, and includes a base frame, a rotating mechanism, a flipping arm and a clamping mechanism. The rotating mechanism is arranged on the base frame, one end of the flipping arm is connected to the rotating mechanism, and the other end extends outward and is connected to the clamping mechanism. The rotating mechanism drives the clamping mechanism to reciprocate between the two conveying lines through the flipping arm, so as to realize the transfer of the shell workpiece between the two conveying lines. The two conveying lines are located on both sides of the rotating mechanism and are at the same or different levels. The lower shell production line also includes at least one double-headed pipe welding machine, which is arranged between the shell rotating device and the protection frame welding machine, and includes a second base, a rotating turntable, a support frame and two pipe body welding devices. The support frame is arranged on the second base through the rotating turntable, and the pipe body welding devices are symmetrically arranged on both sides of the support frame, and rotate 180° with the rotating turntable to realize the conversion of the two pipe body welding devices between the welding and grinding stations; The tube bending device is used to bend the tube body.

7. A compressor casing welding production line according to claim 6, characterized in that: The pin welding machine includes an electric control box, a welding part, a pin feeding part and a first base. The electric control box and the welding part are fixedly arranged on the first base. The pin feeding part is arranged on the first base through a linear guide rail so that it can move relative to the welding part.

8. A compressor casing welding production line according to claim 7, characterized in that: The tube body welding device includes an upper machine head arranged on the support frame, a driving cylinder arranged on the upper machine head, an upper electrode head driven by the driving cylinder to reciprocate in the vertical direction, and a feeding assembly for feeding the copper tube to the upper electrode head, the feeding assembly includes a first material guiding mechanism, a second material guiding mechanism and a material shifting mechanism, the first material guiding mechanism is arranged on the outside of the driving cylinder, the material shifting mechanism includes a material shifting cylinder and a material receiving block, the material shifting cylinder drives the material receiving block to reciprocate between the material outlet of the first material guiding mechanism and the material feed port of the second material guiding mechanism, so that the material enters from the first material guiding mechanism, and after the material receiving block moves, it slides from the second material guiding mechanism to the upper electrode head.

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