Improved structure of shell welding device

Abstract

This utility model discloses an improved structure for a casing welding device, including a gantry frame, a welding lifting motor, a lifting slide, two welding torches, and a rotating worktable. The welding lifting motor is mounted on the gantry frame and drives the lifting slide to slide up and down on the gantry frame. The two welding torches are located at the lower end of the lifting slide, and the rotating worktable is located below the lifting slide. The two welding torches can automatically lift and weld the compressor casing, and the hollow rotating platform can drive the compressor casing to rotate. Therefore, the casing welding device realizes fully automatic welding of the compressor casing, eliminating the need for manual rotation and welding of the compressor casing, resulting in high welding efficiency and good welding quality.

Description

Technical Field

[0001] This utility model relates to the technical field of compressor production lines, and in particular to an improved structure of a housing welding device. Background Technology

[0002] The air conditioner compressor plays a crucial role in compressing and driving the refrigerant in the air conditioner refrigerant circuit. Air conditioner compressors are generally installed in the outdoor unit. During the manufacturing process of the compressor casing, the welding of the upper and lower casings is one of the key steps. However, many manufacturers currently use traditional manual welding methods. The drawbacks of this method are obvious: it relies on workers manually aligning the upper and lower casings, which is not only inefficient but also makes it difficult to guarantee accuracy. Furthermore, during welding, workers need to manually rotate the casing so that the welding wheel can continuously weld along the weld seam. This method not only increases the worker's workload but is also susceptible to interference from human factors, such as differences in skill level, fatigue, and distraction, leading to unstable welding quality, uneven weld seams, and even weak welds. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an improved structure for a shell welding device that has stable welding quality, good welding effect, and high welding efficiency.

[0004] The purpose of this utility model is achieved as follows:

[0005] An improved structure for a shell welding device is characterized by comprising a gantry frame, a welding lifting motor, a lifting slide, two welding torches, and a rotary worktable. The welding lifting motor is mounted on the gantry frame and drives the lifting slide to slide up and down on the gantry frame. The two welding torches are located at the lower end of the lifting slide, and the rotary worktable is located below the lifting slide.

[0006] More specifically, the rotary worktable includes a welding rotary motor, a hollow rotary platform, a rotary disk, and a gripper cylinder. The welding rotary motor is located at the bottom of the hollow rotary platform and provides power to the hollow rotary platform so that the rotating end on the hollow rotary platform rotates. The bottom of the rotary disk is fixed to the rotating end on the hollow rotary platform. The gripper cylinder is located on the rotary disk and has two gripping arms.

[0007] The two welding torches of this invention can automatically lift and weld the compressor housing. The hollow rotating platform of this invention can drive the rotating disk and the gripper cylinder on it, as well as the compressor housing, to rotate. Therefore, the housing welding device of this invention realizes fully automatic welding of the compressor housing, without the need for manual rotation and welding of the compressor housing. It has high welding efficiency and good welding quality.

[0008] The objective of this utility model can also be achieved by the following technical measures:

[0009] Specifically, two welding torches are positioned at the lower end of the lifting slide, one on the left and one on the right. When the compressor housing rotates, the two welding torches simultaneously weld the gap between the upper shell and the compressor housing, resulting in high welding efficiency.

[0010] Specifically, the rotating disk is equipped with a positioning protrusion, which can effectively position and support the compressor housing, ensuring the compressor housing is securely fixed.

[0011] Specifically, the positioning ring is coaxially arranged with the rotating disk to ensure the accurate positioning of the welding torch and the compressor housing.

[0012] Specifically, the gripper cylinder is equipped with two gripping arms, one on the left and one on the right, and a positioning convex ring is located between the two gripping arms.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) The two welding guns of this utility model can automatically lift and weld the compressor housing. The hollow rotating platform of this utility model can drive the rotating disk and the gripper cylinder on it and the compressor housing to rotate. Therefore, the housing welding device of this utility model realizes the fully automatic welding of the compressor housing. There is no need for manual rotation and welding of the compressor housing. The welding efficiency is high and the welding quality is good.

[0015] (2) When the compressor housing rotates, two welding guns simultaneously weld the gap between the upper shell and the compressor housing, resulting in high welding efficiency.

[0016] (3) The positioning ring can effectively position and support the compressor housing, ensuring that the compressor housing is securely fixed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the automated welding production line for compressor housing of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the upper shell welding equipment of this utility model (partial shell welding device omitted).

[0019] Figure 3 This is a schematic diagram of the compressor handling device of this utility model.

[0020] Figure 4 This is a partial sectional view of the compressor handling device of this utility model.

[0021] Figure 5 yes Figure 4 Enlarged view of point A in the image.

[0022] Figure 6This is a schematic diagram of the feeding robot of this utility model.

[0023] Figure 7 This is a cross-sectional view of the feeding robot of this utility model.

[0024] Figure 8 This is a schematic diagram of the material handling robot of this utility model after omitting the speed reduction transmission component.

[0025] Figure 9 This is a top view of the material handling robot of this utility model after omitting the speed reduction transmission component.

[0026] Figure 10 This is a side view of the left gripper of this utility model.

[0027] Figure 11 This is a cross-sectional view of the left gripper of this utility model.

[0028] Figure 12 yes Figure 11 Enlarged view of point B in the image.

[0029] Figure 13 This is a disassembled view of the left gripper of this utility model.

[0030] Figure 14 This is a structural schematic diagram of the shell welding device of this utility model.

[0031] Figure 15 This is a schematic diagram of the structure of the rotary worktable of this utility model.

[0032] Figure 16 This is a structural schematic diagram of the tooling positioning and lifting mechanism of this utility model.

[0033] Figure 17 This is a schematic diagram of the tooling positioning and lifting mechanism (which houses the compressor housing) of this utility model.

[0034] Figure 18 This is a structural schematic diagram of the tooling pushing mechanism of this utility model.

[0035] Figure 19 This is a schematic diagram of the compressor housing with the upper and lower shells welded together according to this utility model. Detailed Implementation

[0036] The present patent will be further described below with reference to the accompanying drawings and embodiments: The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures, and should not be construed as limiting the present patent; In order to better illustrate the embodiments of the present patent, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0037] The terms "first," "second," etc., used in this patent do not indicate any order, quantity, or importance, but are merely for distinction. The terms "one," "a kind," etc., used in this patent do not indicate a limitation on quantity, but rather indicate the presence of at least one of the mentioned objects. The terms indicating direction or location used in this patent, such as "top," "bottom," "side," "longitudinal," "lateral," "middle," "center," "outer," "inner," "horizontal," "vertical," "left," "right," "above," "below," etc., reflect relative positions, not absolute positions; those skilled in the art can understand the specific meaning of these terms according to the specific circumstances.

[0038] Example 1, as Figures 1 to 19 As shown, an automated welding production line for compressor housings is characterized by comprising an upper housing welding device 1 for welding an upper housing 11 to a compressor housing 10, a flipping robot 81, and a lower housing welding device 2 for welding a lower housing 12 onto the compressor housing 10 with the upper housing 11 welded thereon. The flipping robot 81 is located between the upper housing welding device 1 and the lower housing welding device 2. The flipping robot 81 flips the compressor housing 10 with the upper housing 11 welded thereon onto the compressor output line 9 by 180° and then places it on the lower housing welding device 2. The structure of the upper housing welding device 1 is the same as that of the lower housing welding device 2.

[0039] Upper shell welding equipment 1 includes:

[0040] The compressor input line 8 is provided with multiple feeding fixtures 14 for feeding into the compressor housing 10 pre-installed with the upper housing 11 and the lower housing 12;

[0041] The compressor output line 9 is equipped with multiple feeding fixtures 14 for conveying the compressor housing 10 that has completed the previous welding process.

[0042] The feeding fixture 14 is used to transport the compressor housing 10 on the compressor input line 8 and the compressor output line 9;

[0043] The tooling positioning and lifting mechanism 3 is used to position and lift the feeding tooling 14 and the compressor housing 10 on it, so that the compressor handling device 4 can grab the compressor housing 10.

[0044] The tooling pushing mechanism 90 is located on the compressor input line 8 and is used to push the feeding tooling 14 on the compressor input line 8 to the tooling positioning and lifting mechanism 3 and to push the feeding tooling 14 on the tooling positioning and lifting mechanism 3 to the compressor output line 9.

[0045] The compressor handling device 4 is used to handle the compressor housing 10 between the housing welding device 6 and the tooling positioning and lifting mechanism 3;

[0046] The housing welding device 6 is used to weld the compressor housing 10 and the upper housing 11 together.

[0047] This is a more specific technical solution of the present invention.

[0048] In this invention, the compressor input line 8 and the compressor output line 9 are arranged side by side. Multiple tooling positioning and lifting mechanisms 3 are located on one side of the compressor input line 8 and between the compressor input line 8 and the compressor output line 9. Multiple tooling pushing mechanisms 90 are correspondingly located on the other side of the compressor input line 8 and correspond to the positions of the tooling positioning and lifting mechanisms 3.

[0049] See Figure 16 and Figure 17 As shown, the tooling positioning and lifting mechanism 3 includes a base 31, a lifting cylinder 32, a lifting seat 35, a left positioning component 33, and a right positioning component 34. The structure of the left positioning component 33 is the same as that of the right positioning component 34. The left positioning component 33 and the right positioning component 34 are symmetrically arranged on the base 31. The lifting seat 35 is slidably disposed on the top surface of the base 31 and is located between the left positioning component 33 and the right positioning component 34. The lifting cylinder 32 is disposed at the bottom of the base 31 and drives the lifting seat 35 to slide up and down. The left positioning component 33 includes a cylinder seat 37, a positioning cylinder 36, a sliding seat 39, and a positioning claw 311. The cylinder seat 37 is disposed on the base 31, the positioning cylinder 36 is disposed on the cylinder seat 37, and the sliding seat 39 is disposed on the cylinder seat 311. Positioning cylinder 39 is mounted on the cylinder rod of positioning cylinder 36. Positioning cylinder 36 drives sliding seat 39 to slide horizontally. Two moving rods 312 are horizontally mounted on the rear side of positioning claw 311, and the moving rods 312 can move horizontally and retract relative to sliding seat 39. Compression springs 310 are sleeved on the moving rods 312, and the compression springs 310 are located between positioning claw 311 and sliding seat 39. During the movement of the feeding fixture, the compressor housing on the feeding fixture may tilt or deflect, resulting in inaccurate positioning of the compressor housing and affecting subsequent welding work. Therefore, the tooling positioning and lifting mechanism 3 of this utility model can position the compressor housing, ensure the accurate positioning of the compressor housing, facilitate subsequent welding work, and ensure welding effect.

[0050] Because when this shell is placed on the tooling, or during the translation process, it may tilt or deflect, meaning its position may not correspond.

[0051] The top surface of the base 31 is provided with positioning guide strips 313 on both sides. The lifting seat 35 is located in the middle of the top surface of the base 31. The positioning guide strips 313 are used to position the feeding fixture 14, so that the lifting seat 35 can be used to lift or lower the feeding fixture 14.

[0052] The lifting seat 35 is provided with a positioning pin 314 for positioning the feeding fixture 14. The positioning pin 314 is used to fix the feeding fixture 14.

[0053] A guide cylinder 38 is horizontally provided on the sliding seat 39 corresponding to the moving rod 312. The moving rod 312 extends and retracts horizontally within the guide cylinder 38. The moving rod 312 and the guide cylinder 38 slide in a guiding manner, thereby stabilizing the horizontal sliding of the positioning claw 311.

[0054] The rear end of the moving rod 312 is provided with an anti-detachment block 315, which is located on the rear side of the guide cylinder 38. The diameter of the anti-detachment block 315 is larger than the diameter of the guide cylinder 38. The anti-detachment block 315 is used to limit the moving rod 312 and prevent the moving rod 312 from sliding forward and detaching from the guide cylinder 38.

[0055] At least two limiting rods 316 are vertically provided on the base 31, and a limiting block 317 is provided on the limiting rod 316. The limiting block 317 is located directly above the lifting base 35. The limiting block 317 is used to prevent the feeding fixture 14 from continuing to rise, and the lifting cylinder 32 stops driving the feeding fixture 14 to rise.

[0056] This is a more detailed technical solution of the present invention.

[0057] See Figures 3-13As shown, the compressor handling device 4 includes a support frame 41 and a compressor feeding robot 42. The compressor feeding robot 42 is horizontally slidably mounted on the support frame 41. The compressor feeding robot 42 includes a translation motor 46, a lifting motor 45, a translation seat 44, a lifting seat 43, a translation gear 411, a lifting gear 410, and a gripping robot 5. The translation seat 44 is horizontally slidably mounted on the support frame 41, and the lifting seat 43 is vertically slidably mounted on the translation seat 44. A lifting rack 47 is provided on the lifting seat 43 in the vertical direction. The lifting motor 45 is mounted on the translation seat 44 and drives the lifting gear 410 to rotate. The lifting gear 410 meshes with the lifting rack 47. The support frame 46... A horizontally oriented translation rack 48 is provided. A translation motor 46 is mounted on a translation base 44 and drives a translation gear 411 to rotate. The translation gear 411 meshes with the translation rack 48. A material gripping robot 5 is located at the lower end of a lifting base 43. The material gripping robot 5 slides vertically below the top of a support frame 41. The material gripping robot 5 includes a reduction transmission assembly 51, a rotating base 52, a first sliding gripper assembly 53, and a second sliding gripper assembly 54. The reduction transmission assembly 51 drives the rotating base 52 to rotate. The structure of the first sliding gripper assembly 53 is the same as that of the second sliding gripper assembly 54. The first sliding gripper assembly 53 and the second sliding gripper assembly 54 are respectively mounted on the rotating base 44. On both sides of the rotating base 52, the first sliding gripper assembly 53 includes a fixed base 512, an opening and closing cylinder 513, a left sliding plate 56, a right sliding plate 55, a left gripper 511, a right gripper 510, a first synchronous connecting rod 58, a second synchronous connecting rod 59, and a central synchronous connecting rod 57. The fixed base 512 is mounted on the rotating base 52. The left sliding plate 56 and the right sliding plate 55 are horizontally slidably mounted on the fixed base 512, one on the left and one on the right. The cylinder body of the opening and closing cylinder 513 is connected to the right sliding plate 55, and the air rod of the opening and closing cylinder 513 is connected to the left sliding plate 56. The central synchronous connecting rod 57 is horizontally rotatably mounted on the fixed base 512 and is located between the first synchronous connecting rod 58 and the second synchronous connecting rod 59. One end of the synchronizing link 58 is rotatably connected to the left slide plate 56, the other end of the first synchronizing link 58 is rotatably connected to the first end of the central synchronizing link 57, one end of the second synchronizing link 59 is rotatably connected to the right slide plate 55, and the other end of the second synchronizing link 59 is rotatably connected to the second end of the central synchronizing link 57. The left gripper 511 and the right gripper 510 are respectively located at the outer ends of the left slide plate 56 and the right slide plate 55. The opening and closing cylinder 513 drives the left slide plate 56 and the right slide plate 55 to slide synchronously towards each other and synchronously away from each other through the first synchronizing link 58, the second synchronizing link 59 and the central synchronizing link 57, thereby driving the left gripper 511 and the right gripper 510 to close and separate.

[0058] The working principle of the material gripping robot 5 of this utility model is as follows: when the opening and closing cylinder 513 drives the left slide plate 56 to slide towards the right slide plate 55, the first synchronous link 58 also slides towards the right slide plate 55. The first synchronous link 58 drives the central synchronous link 57 to rotate in the forward direction. The other end of the central synchronous link 57 pulls the second synchronous link 59 and the right slide plate 55 to slide towards the left slide plate 56, so that the left slide plate 56 and the right slide plate 55 slide towards each other, and finally the left gripper 511 and the right gripper 510 close together to clamp the compressor housing 10.

[0059] Conversely, when the opening and closing cylinder 513 drives the left slide plate 56 to slide away from the right slide plate 55, the first synchronous link 58 also slides away from the right slide plate 55. The first synchronous link 58 drives the central synchronous link 57 to rotate in the opposite direction. One end of the central synchronous link 57 pushes the second synchronous link 59 and the right slide plate 55 to slide away from the left slide plate 56, so that the left slide plate 56 and the right slide plate 55 slide in opposite directions, and finally the left gripper 511 and the right gripper 510 open, releasing the compressor housing 10.

[0060] The structure of the left gripper 511 is the same as that of the right gripper 510. The left gripper 511 includes a gripper body 519. The inner end of the gripper body 519 is vertically rotatably mounted on the outer end of the left slide plate 56. The outer end of the left slide plate 56 is provided with a bushing 516. A rotating shaft 515 is vertically rotatably mounted inside the bushing 516. The inner end of the gripper body 519 is fixedly connected to the rotating shaft 515. The outer end of the left slide plate 56 is provided with two sets of return springs 514 and adjusting beads 520 in parallel. The outer end of the left slide plate 56 is provided with a receiving channel 517 corresponding to the return springs 514 and adjusting beads 520. The adjusting beads 520 are horizontally slidably mounted in the receiving channel 517. The return springs 514 are located between the adjusting beads 520 and the side wall of the receiving channel 517. When the two grippers of this utility model clamp the compressor housing, the two grippers can adapt to the position of the compressor housing and automatically make fine adjustments in order to clamp the compressor housing. For example, the gripper body can rotate left and right around the rotating shaft in order to clamp the compressor housing.

[0061] The compressor handling device 4 also includes an auxiliary lifting cylinder 49, which is mounted on the translation seat 44, and the cylinder rod of the auxiliary lifting cylinder 49 is fixedly connected to the lifting seat 43.

[0062] The upper and lower ends of the rotating shaft 515 extend out of the top and bottom ends of the bushing 516, respectively, and the upper and lower ends of the rotating shaft 515 are fixedly connected to the gripper body 519.

[0063] There is a gap 100 between the inner end of the gripper body 519 and the outer end of the left slide plate 56 in the vertical direction; therefore, the rotating shaft 515 can slide up and down on the bushing 516, and the gripper body 519 can slide up and down on the outer end of the left slide plate 56, so as to adapt to clamp the compressor housing 10 at different height positions.

[0064] The central synchronizing link 57 is located above the opening and closing cylinder 513.

[0065] The left slide plate 56 and the right slide plate 55 are arranged side by side and horizontally slidably mounted on the fixed base 512.

[0066] The outer ends of the left slide plate 56 and the right slide plate 55 extend out of one side of the fixing seat 512.

[0067] The opening and closing cylinder 513 is located between the left sliding plate 56 and the right sliding plate 55.

[0068] The speed reduction transmission assembly 51 includes an RV speed reducer, with a drive motor (not shown) fixed at the upper end of the RV speed reducer, and the lower end of the RV speed reducer drives the rotating base 52 to rotate.

[0069] This is a more optimized technical solution of the present invention.

[0070] See Figures 14-15As shown, the shell welding device 6 includes a gantry frame 61, a welding lifting motor 62, a lifting screw 63, a lifting slide 64, two welding torches 65 and 66, a clamping rod 67, and a rotary worktable 7. The lifting screw 63 is vertically rotatable on the gantry frame 61, and the lifting slide 64 is slidably mounted on the gantry frame 61. A lifting nut is provided on the lifting slide 64, and the lifting screw 63 is threadedly engaged with the lifting nut. The welding lifting motor 62 is mounted on the gantry frame 61 and drives the lifting screw 63 to rotate. The clamping rod 67 is vertically slidably mounted on the lifting slide 64, and a clamping spring 68 is provided between the lifting slide 64 and the clamping rod 67. A clamping head 69 is provided at the lower end of the clamping rod 67. The two welding torches 65 and 66 are located at the lower end of the lifting slide 64. The rotary worktable 7 is located below the lifting slide 64. The rotary worktable 7 encloses... The device includes a welding rotary motor 71, a hollow rotating platform 72, a rotating disk 73, and a gripper cylinder 74. The welding rotary motor 71 is located at the lower part of the hollow rotating platform 72 and provides power to the platform, causing the rotating end on the platform to rotate. The bottom of the rotating disk 73 is fixed to the rotating end on the platform. The gripper cylinder 74 is located on the rotating disk 73 and has two gripping arms 76 arranged on the left and right sides. The two welding torches of this invention can automatically lift and weld the compressor housing 10. The rotating disk 73 drives the gripper cylinder 74 and the compressor housing 10 to rotate. Therefore, the housing welding device of this invention realizes fully automatic welding of the compressor housing 10, eliminating the need for manual rotation and welding of the compressor housing 10, resulting in high welding efficiency and good welding quality.

[0071] The hollow rotary platform 72 is a standard part, which is a hollow rotary table manufactured by Guangdong Keling Intelligent Equipment Co., Ltd., with the model number DG200FP-70-V1.

[0072] Two welding torches 65 and 66 are positioned on the left and right sides at the lower end of the lifting slide 64. When the compressor housing 10 rotates, the two welding torches 65 and 66 simultaneously weld the gap between the upper shell 11 and the compressor housing 10, resulting in high welding efficiency.

[0073] The rotating disk 73 is provided with a positioning protrusion 75, which is used to position and support the compressor housing 10, and the compressor housing 10 is securely fixed.

[0074] The clamping rod 67 is located in the middle of the two welding guns 65 and 66, and also directly above the positioning protrusion 75. The clamping rod 67 is used to press down on the upper shell 11 or the lower shell 12 during welding, so that the upper shell 11 or the lower shell 12 maintains a tight fit with the compressor housing 10, which facilitates welding.

[0075] The upper and lower ends of the compression spring 68 abut against the lifting slide 64 and the compression head 69 respectively. The compression spring 68 gives the compression head 69 a downward pressing force, which is used to press down on the upper shell 11 or the lower shell 12 during welding.

[0076] The positioning ring 75 is coaxially arranged with the rotating disk 73, thereby ensuring the accurate positioning of the welding torch and the compressor housing 10.

[0077] The gripper cylinder 74 is provided with two gripping arms 76 arranged on the left and right, and the positioning convex ring 75 is located between the two gripping arms 76.

[0078] The flipping robot 81 of this utility model is the prior art. The flipping robot 81 of this utility model is a six-axis robot. The working end of the flipping robot 81 is equipped with a gripper cylinder for gripping the compressor housing.

[0079] See Figure 18 As shown, the tooling pushing mechanism 90 includes a mounting base 93, a movable base 95, a first translation cylinder 91, a second translation cylinder 92, and a flat push plate 94. The movable base 95 is horizontally slidably mounted on the mounting base 93. The first translation cylinder 91 is horizontally mounted on the mounting base 93 and drives the movable base 95 to move horizontally. The flat push plate 94 is horizontally slidably mounted on the movable base 95. The second translation cylinder 92 is mounted on the movable base 95 and drives the flat push plate 94 to move horizontally.

[0080] The working principle of this utility model is as follows:

[0081] Before the automated welding production line for compressor housings of this utility model starts working, the worker or robot first fixes the upper housing 11 and the lower housing 12 to the top and bottom of the compressor housing 10 respectively. Then, the worker or robot places the pre-assembled compressor housing 10, upper housing 11 and lower housing 12 onto the feeding fixture 14 of the upper housing welding equipment 1. Then, the upper housing welding equipment 1 is started, and the compressor input line 8 transports the feeding fixture 14 and the compressor housing 10 on it forward to the fixture pushing mechanism 90.

[0082] Then, the tooling pushing mechanism 90 is activated, and the second translation cylinder 92 drives the flat push plate 94 to move forward horizontally. The flat push plate 94 pushes the feeding tooling 14 on the compressor input line 8 onto the seat 31 of the tooling positioning and lifting mechanism 3.

[0083] Then, the tooling positioning and lifting mechanism 3 is activated. The positioning cylinders 36 of the left positioning component 33 and the right positioning component 34 drive their respective sliding seats 39 and positioning claws 311 to move towards the compressor housing 10. The two positioning claws 311 move towards each other and position the compressor housing 10. The positioning claws 311 continue to move forward and position the compressor housing 10. The compression spring 310 is compressed until the compressor housing 10 is positioned. Then, the positioning cylinders 36 of the left positioning component 33 and the right positioning component 34 drive their respective sliding seats 39 and positioning claws 311 to move away from each other. The two positioning claws 311 disengage from the compressor housing 10. After that, the lifting cylinder 32 drives the lifting seat 35 to rise. The lifting seat 35 lifts the feeding tooling 14 upward until the feeding tooling 14 touches the limit block 317. Then, the lifting cylinder 32 stops driving the lifting seat 35 to rise.

[0084] Afterwards, the compressor handling device 4 is started, and the translation motor 46 drives the translation gear 411 to rotate forward. With the cooperation of the translation gear 411 and the translation rack 48, the compressor feeding robot 42 moves to directly above the tooling positioning and lifting mechanism 3. Then, the lifting motor 45 drives the lifting gear 410 to rotate forward. The rotation of the lifting gear 410 causes the lifting seat 43 and the gripping robot 5 to descend. Then, the left gripper 511 and right gripper 510 of the first sliding gripper assembly 53 close and clamp the compressor housing 10. Next, the lifting motor 45 drives the lifting gear 410 to rotate in reverse. The rotation of the lifting gear 410 causes the lifting seat 43 and the gripping robot 5 to rise. Subsequently, the translation motor 46 drives the translation gear 411 to rotate in reverse, and the feeding robot 42 moves to the housing welding assembly. Above position 6, the second sliding gripper assembly 54 is directly above the rotary table 7. If the compressor housing 10 with its upper shell welded on the positioning cam 75 is at this time, the gripping robot 5 descends, and the left and right grippers of the second sliding gripper assembly 54 grip the compressor housing 10 on the positioning cam 75. Then the gripping robot 5 rises, and then the reduction transmission assembly 51 drives the rotary base 52 to rotate 180°. After the rotary base rotates 180°, the first sliding gripper assembly 53 is directly above the rotary table 7. Then the gripping robot 5 descends, and the left gripper 511 and right gripper 510 of the first sliding gripper assembly 53 place the compressor housing 10 with its upper shell 11 not welded on onto the positioning cam 75. Then the gripping robot 5 rises.

[0085] Subsequently, the housing welding device 6 is activated, and the gripper cylinder 74 drives the two gripper arms 76 to close and clamp the compressor housing 10. Then, the welding lifting motor 62 drives the lifting screw 63 to rotate forward. The lifting nut drives the lifting slide 64, the clamping rod 67, and the two welding torches 65 and 66 to descend together until the clamping head 69 at the lower end of the clamping rod 67 presses on the upper housing 11. The welding nozzles of the two welding torches 65 and 66 are aligned with the gap between the upper housing 11 and the compressor housing 10. The lifting slide 64, the clamping rod 67, and the two welding torches 65 and 66 stop descending. The two welding torches 65 and 66 begin to weld the compressor housing 10. At the same time, the welding rotary motor 71 drives the rotating end on the hollow rotary platform 72 to rotate, thereby driving the rotary disk 73 and its gripper cylinder 74, gripper arms 76, and compressor housing 10 to rotate 360° together. This facilitates the two fixed welding torches 65 and 66 to perform 360° welding on the gap between the upper housing 11 and the compressor housing 10.

[0086] After the two welding torches 65 and 66 weld the upper shell 11 to the compressor housing 10, the gripper cylinder 74 drives the two gripper arms 76 to release the compressor housing 10. The welding lifting motor 62 drives the lifting slide 64, the clamping rod 67 and the two welding torches 65 and 66 to rise together, and the clamping head 69 no longer presses on the upper shell 11.

[0087] When the two welding torches 65 and 66 are welding the upper shell 11 and the compressor housing 12, the translation motor 46 drives the translation gear 411 to rotate forward. The compressor feeding robot 42 moves to the top of the tooling positioning and lifting mechanism 3. Then the gripping robot 5 descends, and the second sliding gripper assembly 54 places the compressor housing 10 with the welded upper shell 11 onto the feeding tooling 14 on the base 31. Then the gripping robot 5 rises.

[0088] Then, the lifting cylinder 32 drives the lifting seat 35 to descend, and the lifting seat 35 lowers the feeding fixture 14 until the lifting seat 35 is below the seat body 31. The lifting seat 35 then disengages from the feeding fixture 14, and the feeding fixture 14 sits on the seat body 31.

[0089] After that, the tooling pushing mechanism 90 is started again. The first translation cylinder 91 drives the moving seat 95 to move forward horizontally. The second translation cylinder 92 and the flat push plate 94 move forward together with the moving seat 95. The flat push plate 94 pushes the feeding tooling 14 on the seat 31 onto the compressor output line 9 of the upper shell welding equipment 1. The feeding tooling 14 is transported to the flipping robot 81 by the compressor output line 9.

[0090] Then, the flipping robot 81 flips the compressor housing 10 on the compressor output line 9 by 180° and places it on the feeding fixture 14 of the compressor input line 8 of the lower housing welding equipment 2.

[0091] The working principle of the lower shell welding device 2 of this utility model is the same as that of the upper shell welding device 1. Therefore, the working process of the lower shell welding device 2 of this utility model will not be described in detail here. The working process of the lower shell welding device 2 of this utility model can be referred to the working process of the upper shell welding device 1.

[0092] The casing welding device 6 of the lower casing welding equipment 2 of this utility model welds the compressor casing 10 and the lower casing 12 together. Then, the compressor casing 10 with the welded lower casing 12 is transported out through the compressor output line 9 on the lower casing welding equipment 2. Thus, this utility model completes the welding work of the upper casing and the lower casing of the compressor casing.

[0093] The embodiments described above are merely examples for clearly illustrating this patent, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this patent, and these all fall within the scope of protection of this patent. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An improved structure of a housing welding device, characterized by, It includes a gantry frame (61), a welding lifting motor (62), a lifting slide (64), two welding torches (65, 66) and a rotary worktable (7). The welding lifting motor (62) is located on the gantry frame (61). The welding lifting motor (62) drives the lifting slide (64) to slide up and down on the gantry frame (61). The two welding torches (65, 66) are located at the lower end of the lifting slide (64). The rotary worktable (7) is located below the lifting slide (64).

2. The improved structure of the shell welding device according to claim 1, characterized in that, The rotary worktable (7) includes a welding rotary motor (71), a hollow rotary platform (72), a rotary disk (73), and a gripper cylinder (74). The welding rotary motor (71) is located at the bottom of the hollow rotary platform (72) and provides power to the hollow rotary platform (72) so that the rotating end on the hollow rotary platform (72) rotates. The bottom of the rotary disk (73) is fixed to the rotating end on the hollow rotary platform (72). The gripper cylinder (74) is located on the rotary disk (73) and has two gripper arms (76).

3. The improvement in a shell welding apparatus according to claim 1 wherein, Two welding torches (65) and (66) are located at the lower end of the lifting slide (64), one on the left and one on the right.

4. The improvement in a shell welding apparatus according to claim 2 wherein, The rotating disk (73) is provided with a positioning protrusion (75).

5. The improvement in a shell welding apparatus according to claim 4 wherein, The positioning cam (75) and the rotating disk (73) are coaxially arranged.

6. The improvement in a shell welding apparatus according to claim 4 wherein, The gripper cylinder (74) is provided with two gripping arms (76) arranged on the left and right, and the positioning convex ring (75) is located between the two gripping arms (76).

Images