A compressor housing hot jacket machine

Abstract

The application discloses a compressor shell hot-joint machine and relates to the technical field of compressor manufacturing. The compressor shell hot-joint machine comprises a rack, a work station group and a grabbing group arranged on the rack, the grabbing group is arranged above the work station group, the work station group comprises, in sequence along a material conveying direction, a feeding station, an alignment station, a first heating station, a second heating station and a pressing station, the feeding station is connected with a shell conveying line, the pressing station is connected with a stator conveying line, the grabbing group comprises, in sequence along the material conveying direction, a feeding mechanical arm, a first transplanting mechanical arm, a second transplanting mechanical arm and a pressing special machine arm. The application can guarantee that the shell is uniformly heated, avoid local deformation of the shell, make the inner diameter of the shell fully expand, be favorable for smooth assembly of the shell and the stator, and avoid occurrence of situations such as collision of the shell and the stator, severe deformation of the shell, damage of the stator and the like.

Description

Technical Field

[0001] This invention relates to the field of compressor manufacturing technology, and more specifically to a compressor housing heat fitting machine. Background Technology

[0002] In the compressor assembly process, the housing and stator are interference fit. They are often assembled by thermal fitting, which utilizes the principle of thermal expansion and contraction. The housing is first heated to a preset temperature to expand the inner diameter of the housing, and then the housing and stator are combined together while it is still hot.

[0003] However, heating the shell to the preset temperature all at once can easily lead to uneven heating of the shell, causing local deformation of the shell and insufficient expansion of the inner diameter of the shell. This can result in mismatch between the shell and the stator during pressing, causing collisions between the shell and the stator, severe deformation of the shell, and damage to the stator. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a compressor housing heat fitting machine, which heats the housing step by step by setting a first heating station and a second heating station. This ensures that the housing is heated evenly, avoids local deformation of the housing, and allows the inner diameter of the housing to expand fully. This facilitates the smooth assembly of the housing and the stator and avoids situations such as collision between the housing and the stator, severe deformation of the housing, and damage to the stator.

[0005] This invention provides a compressor housing heat fitting machine, including a frame, and a workstation group and a gripping group disposed on the frame, wherein the gripping group is disposed above the workstation group;

[0006] The workstation group includes a loading workstation, an alignment workstation, a first heating workstation, a second heating workstation, and a pressing workstation arranged sequentially along the material conveying direction; the loading workstation is connected to a housing conveying line, and the pressing workstation is connected to a stator conveying line;

[0007] The gripping group includes a feeding robot, a first transfer robot, a second transfer robot, and a pressing robot arm arranged sequentially along the material conveying direction;

[0008] The loading robot is used to pick up the housing from the loading station and place the housing into the alignment station; the first transfer robot is used to pick up the housing from the alignment station and place the housing into the first heating station; the second transfer robot is used to pick up the housing from the first heating station and place the housing into the second heating station; the pressing robot arm is used to pick up the housing from the second heating station, move the housing above the pressing station, and then press the housing onto the corresponding stator.

[0009] Specifically, the loading robot, the first transplanting robot, the second transplanting robot, and the pressing-in special machine arm are all mounted on corresponding sliding frames based on lifting mechanisms, and each sliding frame is slidably mounted on the frame based on a slide rail; adjacent sliding frames are connected by a linkage.

[0010] Specifically, each of the connecting rods includes a threaded connecting rod and end sleeves disposed at both ends of the threaded connecting rod based on a threaded fit, the end sleeves being fixedly connected to the sliding frame.

[0011] Specifically, both the first heating station and the second heating station are equipped with heating rods, which are used to insert into the inside of the housing to heat the housing;

[0012] A shelling mechanism is provided on the side of the first heating station and the second heating station. The shelling mechanism includes a shelling plate and a shelling lifting device. The shelling plate is sleeved on the corresponding heating rod. All shelling plates are set on the shelling lifting device based on the shelling connecting plate. The shelling lifting device is used to control the shelling plate to rise and fall along the axial direction of the heating rod.

[0013] Specifically, the alignment station is equipped with a three-jaw self-centering chuck and a laser sensor. The three-jaw self-centering chuck is used to clamp the housing and rotate the housing to a preset orientation. The laser sensor is used to detect whether the orientation of the housing is correct.

[0014] Specifically, the pressing station is equipped with a lifting mechanism, which is used to lift the stator so that the stator and the housing can fit together.

[0015] Specifically, the loading station includes two symmetrically arranged loading substations, the alignment station includes two symmetrically arranged alignment substations, the first heating station includes two symmetrically arranged first heating substations, the second heating station includes two symmetrically arranged second heating substations, and the pressing station includes two symmetrically arranged pressing substations.

[0016] The loading robot includes two symmetrically arranged loading robot arms, the first transplanting robot includes two symmetrically arranged first transplanting robot arms, the second transplanting robot includes two symmetrically arranged second transplanting robot arms, and the pressing-in special machine arm is provided in two sets, with the two sets of pressing-in special machine arms being symmetrically arranged.

[0017] Specifically, the stator conveyor line is provided with a plurality of positioning fixture plates, which are used to load and position the stator.

[0018] Specifically, the housing conveyor line includes a first feeding track and a second feeding track. The first feeding track includes a first storage track and a first feeding track connected in sequence along the material conveying direction, and the first storage track and the first feeding track are perpendicular to each other. The second feeding track includes a second storage track and a second feeding track connected in sequence along the material conveying direction, and the second storage track and the second feeding track are perpendicular to each other. The feeding station is located at the end of the first feeding track and the second feeding track.

[0019] Specifically, the first storage track includes two symmetrically arranged first storage sub-tracks, and a first pushing device is provided at the end of the first storage track. The first pushing device is used to push the shells on the two symmetrically arranged first storage sub-tracks side by side onto the first feeding track.

[0020] The second storage track includes two symmetrically arranged second storage sub-tracks. A second pushing device is provided at the end of the second storage track. The second pushing device is used to push the shells on the two symmetrically arranged second storage sub-tracks side by side onto the second feeding track.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The compressor housing heat fitting machine of the present invention is provided with a loading station, an alignment station, a first heating station, a second heating station, and a pressing station arranged sequentially along the material conveying direction, and is equipped with a loading robot, a first transfer robot, a second transfer robot, and a pressing-in special machine arm. The loading station is connected to a housing conveyor line to continuously supply housings. The alignment station aligns the housings, ensuring they can be transferred accurately in each station, reducing impacts and improving assembly precision. The first and second heating stations heat the housings in stages, allowing for better control of the heating rate and temperature, resulting in a more uniform and stable heating process. This reduces localized deformation caused by uneven heating, allowing the inner diameter of the housing to expand sufficiently, facilitating smooth assembly of the housing and stator, and preventing collisions, severe housing deformation, and stator damage. The pressing station is connected to a stator conveyor line to continuously supply stators. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the compressor housing heat fitting machine in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the lifting mechanism and sliding frame in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection structure between the sliding frame and the connecting rod in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the connecting rod in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the first heating station and the second heating station in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the alignment station in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the pressing station in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the lifting and locking device in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the material limiting device in an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of the special-purpose machine arm pressed into an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the housing conveyor line in an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of the first feeding device in an embodiment of the present invention.

[0036] In the attached diagram, 10 is the workstation group; 11 is the loading station; 12 is the alignment station; 121 is the three-jaw self-centering chuck; 122 is the alignment base; 123 is the alignment motor; 13 is the first heating station; 14 is the second heating station; 15 is the pressing station; 150 is the lifting mechanism; 151 is the lifting base; 1511 is the base upper plate; 152 is the lifting frame; 1521 is the lifting pad; 1522 is the proximity sensor; 153 is the lifting cylinder; 15 4. Lifting and locking device; 1541. Lifting and locking cylinder; 1542. Lifting and locking block; 1543. Locking groove; 155. Material limiting device; 1551. Limiting base; 1552. Limiting cylinder; 1553. Limiting arm; 1554. Proximity switch; 100. Limiting hinge seat; 101. Hinge joint; 102. Limiting slot; 103. Limiting column; 200. Support plate; 20. Gripping assembly; 21. Loading robot; 22. 23. Second transplanting robot arm; 24. Pressing-in special machine arm; 241. Pressure plate; 242. Positioning fork; 30. Shell conveyor line; 310. First loading track; 311. First storage track; 312. First feeding track; 320. Second loading track; 321. Second storage track; 322. Second feeding track; 330. First pushing device; 331. Pushing bracket; 332. Pushing lateral movement mechanism; 333. Pushing... Longitudinal transfer mechanism; 334, pusher plate; 340, second pusher device; 40, stator conveyor line; 50, lifting mechanism; 51, lifting frame; 52, lifting motor; 53, lifting screw; 54, lifting movable nut; 60, sliding frame; 70, connecting rod; 71, threaded connecting rod; 72, end sleeve; 81, heating rod; 82, shell positioning seat; 83, temperature detection sensor; 90, shell removal mechanism; 91, shell removal plate; 92, shell removal lifting device. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Figure 1A three-dimensional structural schematic diagram of a compressor housing heat-sealing machine according to an embodiment of the present invention is shown. The compressor housing heat-sealing machine includes a frame, and a workstation group 10 and a gripping group 20 disposed on the frame. The gripping group 20 is disposed above the workstation group 10. The workstation group 10 includes a loading workstation 11, an alignment workstation 12, a first heating workstation 13, a second heating workstation 14, and a pressing workstation 15 arranged sequentially along the material conveying direction. The loading workstation 11 is connected to a housing conveying line 30, and the pressing workstation 15 is connected to a stator conveying line 40. The gripping group 20 includes a loading robot 21 and a first transfer robot 22 arranged sequentially along the material conveying direction. The second transfer robot 23 and the pressing-in special machine arm 24; the loading robot 21 is used to grab the housing from the loading station 11 and place the housing into the alignment station 12; the first transfer robot 22 is used to grab the housing from the alignment station 12 and place the housing into the first heating station 13; the second transfer robot 23 is used to grab the housing from the first heating station 13 and place the housing into the second heating station 14; the pressing-in special machine arm 24 is used to grab the housing from the second heating station 14, move the housing to above the pressing station 15, and then press the housing onto the corresponding stator.

[0039] In the compressor housing heat fitting machine of the present invention, the loading station 11 is connected to the housing conveying line 30, which can continuously supply housings; the alignment station 12 can align the housing, which helps to ensure that the housing can be transferred in each station with an accurate posture, which can reduce the impact of the housing and improve the assembly accuracy of the housing; the first heating station 13 and the second heating station 14 heat the housing step by step, which can better control the heating speed and temperature of the housing, making the heating process of the housing more uniform and stable, reducing the local deformation of the housing caused by uneven heating, and allowing the inner diameter of the housing to expand fully, which is conducive to the smooth assembly of the housing and the stator, and avoids the occurrence of collision between the housing and the stator, severe deformation of the housing, damage to the stator, etc.; the pressing station 15 is connected to the stator conveying line 40, which can continuously supply stators.

[0040] In addition, heating the shell in stages ensures uniform heating and avoids damage caused by localized overheating, effectively reducing the risk of shell damage. Moreover, staged heating prevents the shell from staying in one position for too long, making it easier to control the production cycle and improve assembly efficiency.

[0041] Figure 2The diagram shows the structure of the lifting mechanism and the sliding frame in an embodiment of the present invention. The loading robot 21, the first transplanting robot 22, the second transplanting robot 23, and the pressing-in special machine arm 24 are all mounted on the corresponding sliding frame 60 based on the lifting mechanism 50. Each sliding frame 60 is slidably mounted on the frame based on a slide rail. The lifting mechanism 50 is used to control the vertical lifting of the corresponding loading robot 21, the first transplanting robot 22, the second transplanting robot 23, and the pressing-in special machine arm 24. The sliding frame 60 is used to drive the corresponding lifting mechanism 50 to translate horizontally on the frame.

[0042] Specifically, each lifting mechanism 50 includes a lifting frame 51, a lifting motor 52, a lifting screw 53, and a lifting movable nut 54. The lifting frame 51 is vertically and movably mounted on the sliding frame 60. The lifting motor 52 is fixedly mounted on the upper end of the lifting frame 51. The loading robot 21, the first transplanting robot 22, the second transplanting robot 23, and the pressing machine arm 24 are fixedly mounted on the lower end of their respective lifting frames 51. The lifting screw 53 is vertically and rotatably mounted in the lifting frame 51. The output shaft of the lifting motor 52 is fixedly connected to the lifting screw 53 via a coupling. The lifting movable nut 54 is threaded and engages with the lifting screw 53. The lifting movable nut 54 is fixedly connected to the sliding frame 60. The lifting motor 52 drives the lifting screw 53 to rotate. Since the lifting movable nut 54 and the sliding frame 60 are fixedly connected, the lifting screw 53 is forced to move vertically, thereby driving the lifting frame 51 to rise or fall, thus realizing the vertical lifting of the loading robot 21, the first transfer robot 22, the second transfer robot 23 and the pressing special machine arm 24.

[0043] Specifically, the lifting mechanisms 50 used by the loading robot 21, the first transplanting robot 22, and the second transplanting robot 23 have the same structure, and their lifting frames 51 are slidably mounted on the sliding frame 60 based on two sliding rods, resulting in stable and smooth operation. The lifting mechanism 50 used by the pressing-in special machine arm 24 is different from the lifting mechanisms 50 used by the loading robot 21 and other robots. The lifting motor 52 of the lifting mechanism 50 used by the pressing-in special machine arm 24 has a higher power, which can provide sufficient pressure for the pressing of the housing and the stator. The lifting frame 51 of the lifting mechanism 50 used by the pressing-in special machine arm 24 is slidably mounted on the sliding frame 60 based on four sliding rods, providing more stable support and facilitating the pressing of the housing and the stator.

[0044] Figure 3The diagram shows the connection structure of the sliding frame and the connecting rod in an embodiment of the present invention. Two adjacent sliding frames 60 are connected by the connecting rod 70, so that the loading robot 21, the first transfer robot 22, the second transfer robot 23 and the pressing special machine arm 24 can move horizontally synchronously. This is beneficial for controlling the production cycle and can also ensure that each robot works stably and does not interfere with each other.

[0045] Figure 4 A schematic diagram of the connecting rod structure in an embodiment of the present invention is shown. Each connecting rod 70 includes a threaded connecting rod 71 and end sleeves 72 disposed at both ends of the threaded connecting rod 71 based on threaded engagement. The end sleeves 72 are fixedly connected to the sliding frame 60. By adjusting the depth of the threaded connecting rod 71 inserted into the end sleeve 72, the overall length of the connecting rod 70 can be changed, thereby realizing the adjustment of the spacing of the sliding frame 60. This ensures that the gripping group 20 and the workstation group 10 correspond precisely, which is beneficial to ensure that the shell can be accurately transferred in each workstation, reduce the impact of the shell, and improve the assembly accuracy of the shell.

[0046] Figure 5 The diagram shows the structure of the first heating station and the second heating station in an embodiment of the present invention. Both the first heating station 13 and the second heating station 14 are provided with heating rods 81. The heating rods 81 are used to be inserted into the inside of the housing to heat the housing. The heating rods 81 can fully contact the housing, resulting in high heating efficiency and good heating uniformity.

[0047] Specifically, a shell removal mechanism 90 is provided on the side of the first heating station 13 and the second heating station 14. The shell removal mechanism 90 includes a shell removal plate 91 and a shell removal lifting device 92. The shell removal plate 91 is sleeved on the corresponding heating rod 81. All shell removal plates 91 are set on the shell removal lifting device 92 based on the shell removal connecting plate. The shell removal lifting device 92 is used to control the shell removal plate 91 to rise and fall along the axial direction of the heating rod 81, which can effectively separate the shell from the heating rod 81.

[0048] Specifically, each of the heating rods 81 is fitted with a housing positioning seat 82, which is fixedly connected to the corresponding shell removal plate 91. The housing positioning seat 82 can restrict the housing and prevent the housing from rotating during the shell removal process.

[0049] Furthermore, temperature detection sensors 83 are provided on the sides of both the first heating station 13 and the second heating station 14 to detect whether the shell has been heated to the preset temperature.

[0050] Figure 6A schematic diagram of the alignment station in an embodiment of the present invention is shown. The alignment station 12 is equipped with a three-jaw self-centering chuck 121 and a laser sensor. The three-jaw self-centering chuck 121 is used to clamp the housing and rotate the housing to a preset orientation. The laser sensor is used to detect whether the orientation of the housing is correct. The alignment station 12 can align the housing, which helps to ensure that the housing can be transferred in each station with an accurate posture, reduces the impact of the housing, and improves the assembly accuracy of the housing.

[0051] Specifically, the three-jaw self-centering chuck 121 is rotatably mounted on the alignment base 122. The lower end of the alignment base 122 is provided with an alignment motor 123. The output end of the alignment motor 123 is connected to the three-jaw self-centering chuck 121. The alignment motor 123 is used to drive the three-jaw self-centering chuck 121 to rotate.

[0052] Figure 7 A schematic diagram of the pressing station in an embodiment of the present invention is shown. The pressing station 15 is provided with a lifting mechanism 150, which is used to lift the stator so that the stator and the housing can fit together.

[0053] Specifically, the lifting mechanism 150 includes a lifting base 151, a lifting frame 152, and a lifting cylinder 153. The lifting base 151 is fixedly mounted on the frame, and a base plate 1511 is fixedly mounted on the upper end of the lifting base 151. The lifting frame 152 is vertically inserted into the base plate 1511. The lifting cylinder 153 is fixedly mounted on the lower end of the lifting frame 152, and the output end of the lifting cylinder 153 is fixedly connected to the base plate 1511. When the output end of the lifting cylinder 153 retracts, the distance between the lower end of the lifting frame 152 and the base plate 1511 shortens, and the lifting frame 152 moves upward. When the output end of the lifting cylinder 153 extends, the distance between the lower end of the lifting frame 152 and the base plate 1511 increases, and the lifting frame 152 moves downward.

[0054] Specifically, a lifting pad 1521 is fixedly installed at the upper end of the lifting frame 152, which is non-slip and wear-resistant, and easy to maintain and replace; a proximity sensor 1522 is also installed at the upper end of the lifting frame 152 to detect whether there is a workpiece or tooling above the lifting mechanism 150.

[0055] Furthermore, a lifting locking device 154 is provided between the upper end of the lifting frame 152 and the upper plate 1511 of the base. Figure 8A schematic diagram of the lifting and locking device in an embodiment of the present invention is shown. The lifting and locking device 154 includes a lifting and locking cylinder 1541 and a lifting and locking block 1542. The lifting and locking block 1542 is horizontally slidably disposed on the upper plate 1511 of the base, and the lifting and locking block 1542 is formed with a locking groove 1543 that matches the lifting frame 152. The lifting and locking cylinder 1541 is horizontally fixedly installed on the upper plate 1511 of the base, and the output end of the lifting and locking cylinder 1541 is fixedly connected to the lifting and locking block 1542.

[0056] When the output end of the lifting and locking cylinder 1541 extends, the locking groove 1543 of the lifting and locking block 1542 disengages from the lifting frame 152, at which time the lifting frame 152 can move freely up and down; when the output end of the lifting and locking cylinder 1541 retracts, the locking groove 1543 of the lifting and locking block 1542 locks the lifting frame 152, at which time the lifting frame 152 is locked and cannot move freely up and down.

[0057] In some specific embodiments, please refer to Figure 7 The base plate 1511 is provided with a material limiting device 155, which is used to prevent the workpiece or tooling from continuing to move, ensuring that the stator is in the correct position.

[0058] Figure 9 A schematic diagram of the material limiting device in an embodiment of the present invention is shown. The material limiting device 155 includes a limiting base 1551, a limiting cylinder 1552, a limiting arm 1553, and a proximity switch 1554. The limiting base 1551 is fixedly mounted on the upper plate 1511 of the base. The limiting cylinder 1552 is fixedly mounted in the limiting base 1551, with its output end pointing vertically upward. The limiting arm 1553 is rotatably mounted on the limiting base 1551 based on the limiting hinge seat 100. One end of the limiting arm 1553 is hinged to the output end of the limiting cylinder 1552, and the other end of the limiting arm 1553 is provided with a roller. When the output end of the limiting cylinder 1552 retracts, the roller end of the limiting arm 1553 tilts up, which can prevent the workpiece or tooling from moving further. When the output end of the limiting cylinder 1552 extends, the roller end of the limiting arm 1553 sinks down, no longer blocking the movement of the workpiece or tooling. The roller can play a good buffering role and avoid hard friction between the limiting arm 1553 and the workpiece (or tooling).

[0059] The proximity switch 1554 is fixedly mounted on the limiting base 1551 based on the support plate 200. The proximity switch 1554 is vertically upward and is used to control the start and stop of the limiting cylinder 1552. The proximity switch 1554 is a position switch that can be operated without direct contact with moving parts. When the workpiece or tooling approaches the sensing surface of the switch 1554, the switch can be activated without mechanical contact or the application of any pressure, thereby starting or stopping the limiting cylinder 1552. It can also provide control commands to a computer device.

[0060] Furthermore, the limiting hinge seat 100 is rotatably mounted on the limiting base 1551. A hinge joint 101 is provided on one side of the limiting hinge seat 100, and the limiting arm 1553 is hinged to the hinge joint 101. A limiting slot 102 is provided on the other side of the limiting hinge seat 100, and a limiting post 103 is inserted into the limiting base 1551. The limiting slot 102 and the limiting post 103 cooperate to prevent the limiting hinge seat 100 from rotating. This structure can disperse the impact force on the limiting arm 1553, which is beneficial to extending the service life of the material limiting device 155.

[0061] In some specific embodiments, the loading station 11 includes two symmetrically arranged loading sub-stations, the alignment station 12 includes two symmetrically arranged alignment sub-stations, the first heating station 13 includes two symmetrically arranged first heating sub-stations, the second heating station 14 includes two symmetrically arranged second heating sub-stations, and the pressing station 15 includes two symmetrically arranged pressing sub-stations; the loading robot 21 includes two symmetrically arranged loading robot arms, the first transfer robot 22 includes two symmetrically arranged first transfer robot arms, the second transfer robot 23 includes two symmetrically arranged second transfer robot arms, and two sets of pressing-in special machine arms 24 are provided, with the two sets of pressing-in special machine arms 24 symmetrically arranged. This allows for the processing and assembly of two housings at once, effectively improving the assembly efficiency of the housing and stator.

[0062] Specifically, the loading robot 21, the first transfer robot 22, the second transfer robot 23, and the pressing-in special machine arm 24 all use three-finger mechanical claws, which have high gripping stability and can also self-center, which is beneficial to improving the assembly accuracy of the shell and the stator.

[0063] Figure 10A schematic diagram of the press-fit special machine arm in an embodiment of the present invention is shown. A pressure plate 241 is provided on the press-fit special machine arm 24, and the claws of the three-finger mechanical gripper of the press-fit special machine arm 24 surround the pressure plate 241. A positioning fork 242 is provided on the pressure plate 241. The pressure plate 241 can apply uniform pressure to the housing, pressing the housing onto the stator; the positioning fork 242 matches the protrusions of the housing, preventing the housing from rotating and improving the assembly accuracy of the housing and stator.

[0064] In some specific embodiments, the stator conveyor line 40 is provided with a plurality of positioning fixture plates, which are used to load and position the stator. On the one hand, this facilitates the smooth transport of the stator and prevents the stator from tipping over or crowding, which is beneficial for controlling the production cycle. On the other hand, it can improve the assembly accuracy of the housing and the stator, which is beneficial for improving the assembly quality.

[0065] Figure 11 A schematic diagram of the housing conveyor line 30 in an embodiment of the present invention is shown. The housing conveyor line 30 includes a first feeding track 310 and a second feeding track 320. The first feeding track 310 includes a first storage track 311 and a first feeding track 312 connected sequentially along the material conveying direction, and the first storage track 311 and the first feeding track 312 are perpendicular to each other. The second feeding track 320 includes a second storage track 321 and a second feeding track 322 connected sequentially along the material conveying direction, and the second storage track 321 and the second feeding track 322 are perpendicular to each other. The feeding station 11 is located at the end of the first feeding track 312 and the second feeding track 322. That is, both the first feeding track 310 and the second feeding track 320 are L-shaped. Compared with the straight track, the L-shaped track is more compact, which can reduce the space occupied by the housing conveyor line 30, thereby effectively improving the rationality of the spatial layout.

[0066] Specifically, the first storage track 311 includes two symmetrically arranged first storage sub-tracks. A first pushing device 330 is provided at the end of the first storage track 311. The first pushing device 330 is used to push the housings on the two symmetrically arranged first storage sub-tracks side-by-side onto the first feeding track 312. The second storage track 321 includes two symmetrically arranged second storage sub-tracks. A second pushing device 340 is provided at the end of the second storage track 321. The second pushing device 340 is used to push the housings on the two symmetrically arranged second storage sub-tracks side-by-side onto the second feeding track 322. The multi-track design enables simultaneous feeding of multiple housings, effectively improving feeding efficiency. Furthermore, the pushing device facilitates control of the feeding cycle, ensuring an orderly assembly process between the housings and the stator.

[0067] Figure 12 A schematic diagram of the structure of the first pushing device in an embodiment of the present invention is shown. The first pushing device 330 includes a pushing bracket 331, a pushing lateral movement mechanism 332, a pushing longitudinal movement mechanism 333, and a pushing plate 334. The pushing bracket 331 spans the end of the first storage track 311. The pushing lateral movement mechanism 332 is disposed at the upper end of the pushing bracket 331. The pushing longitudinal movement mechanism 333 is disposed at the front end of the pushing lateral movement mechanism 332. The pushing plate 334 is disposed at the lower end of the pushing longitudinal movement mechanism 333. The pushing lateral movement mechanism 332 is used to control the pushing longitudinal movement mechanism 333 to move back and forth along the conveying direction of the first storage track 311. The pushing longitudinal movement mechanism 333 is used to control the pushing plate 334 to move up and down in the vertical direction.

[0068] The second pushing device 340 and the first pushing device 330 have the same structure, and will not be described in detail here.

[0069] In some specific embodiments, a V-shaped clamp is provided in the loading station 11. The opening of the V-shaped clamp faces the material receiving direction of the housing. The V-shaped clamp can position the housing in the central area of ​​the loading station 11, which is convenient for the loading robot 21 to grasp it accurately.

[0070] The compressor housing heat fitting machine of the present invention has a loading station 11 connected to a housing conveyor line 30, which can continuously supply housings; an alignment station 12 can align the housing, which helps ensure that the housing can be transferred accurately in each station, reducing collisions and improving assembly accuracy; a first heating station 13 and a second heating station 14 heat the housing in stages, which can better control the heating speed and temperature, making the heating process more uniform and stable, reducing local deformation caused by uneven heating, and allowing the inner diameter of the housing to expand fully, which is conducive to the smooth assembly of the housing and stator, avoiding collisions between the housing and stator, severe deformation of the housing, and damage to the stator; a pressing station 15 is connected to a stator conveyor line 40, which can continuously supply stators. In addition, the staged heating of the housing ensures uniform heating and avoids damage caused by local overheating, effectively reducing the risk of housing damage; moreover, staged heating prevents the housing from staying in one position for too long, making it easier to control the production cycle and improve assembly efficiency.

[0071] In this invention, the simultaneous feeding of multiple housings via multiple tracks effectively improves feeding efficiency. Furthermore, the feeding device facilitates control of the feeding cycle, ensuring a well-ordered assembly process for the housings and stators. The L-shaped feeding track design reduces the space occupied by the housing conveyor line 30, effectively improving the rationality of the spatial layout. By sequentially setting up feeding station 11, alignment station 12, first heating station 13, second heating station 14, and pressing station 15 along the material conveying direction, and correspondingly equipping them with feeding robot 21, first transfer robot 22, second transfer robot 23, and pressing robot arm 24, simultaneous transfer, heating, and pressing of multiple housings are achieved, facilitating production cycle control and effectively improving the assembly efficiency of the housings and stators.

[0072] The compressor housing heat fitting machine of the present invention has high assembly precision, high assembly efficiency and good assembly quality.

[0073] The above provides a detailed description of a compressor housing heat fitting machine provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A compressor housing heat fitting machine, characterized in that, It includes a frame, and a workstation group and a gripping group disposed on the frame, wherein the gripping group is disposed above the workstation group; The workstation group includes a loading workstation, an alignment workstation, a first heating workstation, a second heating workstation, and a pressing workstation arranged sequentially along the material conveying direction; the loading workstation is connected to a housing conveying line, and the pressing workstation is connected to a stator conveying line; The gripping group includes a feeding robot, a first transfer robot, a second transfer robot, and a pressing robot arm arranged sequentially along the material conveying direction; The loading robot arm is used to pick up the housing from the loading station and place the housing into the alignment station; the first transfer robot arm is used to pick up the housing from the alignment station and place the housing into the first heating station; the second transfer robot arm is used to pick up the housing from the first heating station and place the housing into the second heating station; the pressing robot arm is used to pick up the housing from the second heating station, move the housing above the pressing station, and then press the housing onto the corresponding stator; Both the first heating station and the second heating station are equipped with heating rods, which are used to be inserted into the inside of the housing to heat the housing; A shelling mechanism is provided on the side of the first heating station and the second heating station. The shelling mechanism includes a shelling plate and a shelling lifting device. The shelling plate is sleeved on the corresponding heating rod. All shelling plates are set on the shelling lifting device based on the shelling connecting plate. The shelling lifting device is used to control the shelling plate to rise and fall along the axial direction of the heating rod.

2. The compressor housing heat fitting machine as described in claim 1, characterized in that, The loading robot, the first transplanting robot, the second transplanting robot, and the pressing machine arm are all mounted on corresponding sliding frames based on lifting mechanisms. Each sliding frame is slidably mounted on the frame based on a slide rail. Adjacent sliding frames are connected by a linkage.

3. The compressor housing heat fitting machine as described in claim 2, characterized in that, Each of the connecting rods includes a threaded connecting rod and end sleeves disposed at both ends of the threaded connecting rod based on a threaded fit, the end sleeves being fixedly connected to the sliding frame.

4. The compressor housing heat fitting machine as described in claim 1, characterized in that, The alignment station is equipped with a three-jaw self-centering chuck and a laser sensor. The three-jaw self-centering chuck is used to clamp the housing and rotate the housing to a preset orientation. The laser sensor is used to detect whether the orientation of the housing is correct.

5. The compressor housing heat fitting machine as described in claim 1, characterized in that, The pressing station is equipped with a lifting mechanism, which is used to lift the stator so that the stator and the housing can fit together.

6. The compressor housing heat fitting machine as described in claim 1, characterized in that, The loading station includes two symmetrically arranged loading substations, the alignment station includes two symmetrically arranged alignment substations, the first heating station includes two symmetrically arranged first heating substations, the second heating station includes two symmetrically arranged second heating substations, and the pressing station includes two symmetrically arranged pressing substations. The loading robot includes two symmetrically arranged loading robot arms, the first transplanting robot includes two symmetrically arranged first transplanting robot arms, the second transplanting robot includes two symmetrically arranged second transplanting robot arms, and the pressing-in special machine arm is provided in two sets, with the two sets of pressing-in special machine arms being symmetrically arranged.

7. The compressor housing heat fitting machine as described in claim 1, characterized in that, The stator conveyor line is provided with several positioning fixtures, which are used to load and position the stator.

8. The compressor housing heat fitting machine as described in claim 1, characterized in that, The housing conveyor line includes a first feeding track and a second feeding track. The first feeding track includes a first storage track and a first feeding track connected in sequence along the material conveying direction, and the first storage track and the first feeding track are perpendicular to each other. The second feeding track includes a second storage track and a second feeding track connected in sequence along the material conveying direction, and the second storage track and the second feeding track are perpendicular to each other. The feeding station is located at the end of the first feeding track and the second feeding track.

9. The compressor housing heat fitting machine as described in claim 8, characterized in that, The first storage track includes two symmetrically arranged first storage sub-tracks. A first pushing device is provided at the end of the first storage track. The first pushing device is used to push the shells on the two symmetrically arranged first storage sub-tracks side by side onto the first feeding track. The second storage track includes two symmetrically arranged second storage sub-tracks. A second pushing device is provided at the end of the second storage track. The second pushing device is used to push the shells on the two symmetrically arranged second storage sub-tracks side by side onto the second feeding track.

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