Multi-station rotary compressor assembly table

Abstract

The utility model relates to the technical field of compressor assembly, specifically relates to a multi-station rotary compressor assembly platform, including the base and rotating installation in the top of base through the central pivot drive mechanism rotating platform, the top of rotating platform is evenly distributed with a plurality of stations in the circumference, every station is detachably inserted with bottom locating seat, the top locating seat is arranged above bottom locating seat, the side of bottom locating seat and top locating seat is opposite and is all set up with the embedding groove of opposite position, and the embedding groove is adapted to the appearance of specific model compressor shell, and the top locating seat is driven to descend through the lifting electric jar, and is folded with bottom locating seat, and the profiling embedding groove of the side of both opposite sides is set up, and the compressor shell is completely covered from the direction of up and down, this surface contact fixing mode provides the great contact area, makes stress distribution even, effectively prevents the deviation or vibration of compressor under the rotation inertia or assembly operation force, and ensures the very high assembly accuracy and stability.

Description

Technical Field

[0001] This utility model relates to the field of compressor assembly technology, specifically to a multi-station rotary compressor assembly table. Background Technology

[0002] As a core component of refrigeration systems, the assembly precision of rotary compressors directly affects product performance, energy efficiency, and reliability. Traditional assembly lines typically employ linear conveyor belts, with compressor housings moving between different stations. This model has the following significant drawbacks: Large footprint: A linear layout requires a long conveyor belt and workstation space; Low positioning accuracy: The repeatability of positioning on the conveyor belt is limited, especially in workstations that require high-precision assembly (such as crankshaft pressing), which often requires the addition of complex secondary positioning mechanisms, increasing the complexity and cost of the equipment; Poor flexibility: Production lines are typically designed for a single compressor model. When different models and specifications of compressors need to be produced, changing fixtures and adjusting the production line layout are very difficult, time-consuming, and labor-intensive, making it impossible to adapt to the flexible production needs of modern manufacturing, which require "small batches and multiple varieties." Multi-station rotary assembly tables are one of the effective ways to solve the above problems. They shorten the material flow path and improve space utilization and production cycle through a disc layout. However, the core challenge is how to design a universal fixture for each station on the rotary table that can quickly and stably fix the workpiece and quickly adapt to different models.

[0003] Therefore, there is an urgent need for a new type of multi-station rotary compressor assembly table to solve the problems of poor fixture adaptability, low positioning accuracy and low changeover efficiency in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-station rotary compressor assembly table to overcome the shortcomings of the prior art. This utility model achieves rapid, precise and flexible fixing of the compressor through a quick-replaceable positioning seat combination with a contoured cavity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station rotary compressor assembly table includes a base and a rotary table rotatably mounted on top of the base via a central rotating shaft drive mechanism. The top of the rotary table has multiple stations evenly distributed around its circumference. Each station is detachably connected to a bottom positioning seat. A top positioning seat is provided above the bottom positioning seat. The bottom positioning seat and the top positioning seat each have an embedded groove on their opposite sides that is adapted to the shape of a specific model compressor housing. A lifting assembly is installed inside the rotary table corresponding to each station.

[0006] The lifting assembly includes a lifting electric cylinder that is fixedly embedded in the rotary table. The output end of the lifting electric cylinder is equipped with a rotating rod that extends through the bottom positioning seat and is detachably connected to the top positioning seat.

[0007] Preferably, the rotary table has a cavity inside, the lifting electric cylinder is fixedly installed at the bottom of the cavity, and the top of the rotary table has several insertion holes for installing the bottom positioning seat.

[0008] Preferably, the bottom positioning seat has a through hole in the center for the rotating rod to pass through, and several insert shafts are vertically fixed at its bottom. These insert shafts can be accurately inserted into the corresponding insert holes on the top of the rotary table to achieve rapid positioning and installation.

[0009] Preferably, a docking seat is fixedly installed at the center of the bottom of the top positioning seat, and the bottom of the docking seat is provided with an internal hexagonal or other non-circular docking groove.

[0010] Preferably, a number of guide blocks are vertically fixedly installed on the outer wall of the rotating rod. The cross-sectional shape formed by the rotating rod and the guide blocks matches the shape of the through hole of the bottom positioning seat, ensuring that the rotating rod can only move up and down axially and cannot rotate circumferentially.

[0011] Preferably, a regular hexagonal prism (or other shape matching the mating groove) is fixedly installed on the top of the rotating rod, and a mating plate is threaded onto the outer wall of the rod. When it is necessary to connect the top positioning seat, the rotating rod rises, so that the regular hexagonal prism is inserted into the mating groove of the mating seat. Then, several screws on the mating plate are tightened, so that the mating plate is pressed tightly against the bottom of the mating seat, thereby firmly locking the top positioning seat onto the rotating rod.

[0012] The technical solution provided by this utility model has the following advantages compared with the known prior art: The top positioning seat is driven to descend by the lifting electric cylinder and close with the bottom positioning seat. The conformal embedding grooves opened on the opposite sides of the two seats completely cover the compressor housing from both the top and bottom. This surface contact fixing method provides a large contact area, which makes the stress distribution uniform and effectively prevents the compressor from shifting or vibrating under rotational inertia or assembly operation force, ensuring extremely high assembly accuracy and stability.

[0013] The core innovation of this utility model lies in designing the positioning parts (top positioning seat and bottom positioning seat) that directly contact the workpiece as modules that can be quickly disassembled and replaced. When different models of compressors need to be assembled, it is only necessary to remove the old positioning seat assembly and replace it with a positioning seat assembly that matches the shape of the new model compressor housing. This design greatly shortens the changeover time of the production line, enabling one piece of equipment to flexibly adapt to the production of multiple products, realizing true flexible manufacturing and reducing equipment investment costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the base and rotating stage of this utility model. Figure 3 This is a schematic diagram showing the disassembled structure of the bottom positioning seat, the top positioning seat, and the lifting assembly parts of this utility model. Figure 4 This is a schematic diagram of the rotating rod installation structure of this utility model.

[0016] The labels in the diagram represent: 1. Base; 11. Servo motor; 12. Rotary stage; 13. Socket; 21. Lifting electric cylinder; 22. Rotating rod; 23. Guide block; 24. Regular hexagonal prism; 25. Connecting plate; 26. Screw; 3. Bottom positioning seat; 31. Through hole; 32. Insert shaft; 4. Top positioning seat; 41. Dating seat. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments. Example 1

[0019] Reference Figure 1-4 This is the first embodiment of the present invention. A multi-station rotary compressor assembly table includes a base 1 made of high-strength cast iron and a rotary table 12 rotatably mounted on top of the base 1 via a large slewing bearing. The surface of the base 1 has several heat dissipation holes to facilitate heat dissipation of internal electrical equipment. The rotary table 12 is usually made of cast iron to ensure its structural rigidity and stability. A bottom positioning seat 3 is detachably inserted into the top of the rotary table 12. A top positioning seat 4 is provided above the bottom positioning seat 3. Both the bottom positioning seat 3 and the top positioning seat 4 are made of heat-treated 45 steel. Several embedded grooves with opposite positions are machined on their opposite sides by a precision milling machine. The shape of these embedded grooves is adapted to the shape of the upper and lower parts of the compressor housing of a specific model to ensure accurate positioning. A lifting assembly is installed inside the rotary table 12.

[0020] The lifting assembly includes a lifting electric cylinder 21 embedded and fixedly installed in the rotary table 12. The output end of the lifting electric cylinder 21 is equipped with a rotating rod 22 that extends through the bottom positioning seat 3. The top of the rotating rod 22 is detachably installed with the top positioning seat 4. Example 2

[0021] Reference Figure 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a servo motor 11 is installed in the base 1, and the output shaft of the servo motor 11 is fixedly connected to the bottom of the rotary table 12 through a reducer, so as to provide precise indexing rotation power. A cavity is opened in the rotary table 12, and a lifting electric cylinder 21 is fixedly installed at the bottom of the cavity. Several precision-machined insertion holes 13 are opened on the top of the rotary table 12. Copper sleeves or linear bearings can be embedded in the insertion holes 13 to reduce wear and ensure guiding accuracy.

[0022] The bottom positioning seat 3 has a through hole 31 through the center. The cross-sectional shape of the through hole 31 matches the combined cross-section of the rotating rod 22 and the guide block 23 to form a precise anti-rotation guide pair. Several insert shafts 32 made of hardened steel are vertically fixedly installed on the bottom of the bottom positioning seat 3. The insert shafts 32 are respectively inserted into the corresponding insert holes 13 to realize the quick positioning and installation of the bottom positioning seat 3. The bottom center of the top positioning seat 4 has a docking seat 41 fixedly installed. The docking seat 41 is made of alloy steel and has a docking groove with an inner hexagonal shape that matches the regular hexagonal prism 24 on its bottom.

[0023] Several guide blocks 23 made of wear-resistant brass are vertically fixedly installed on the outer wall of the rotating rod 22. The rotating rod 22 and the guide blocks 23 are inserted into the corresponding through holes 31 in a matching manner, ensuring that the rotating rod 22 can only move axially and cannot rotate. A regular hexagonal prism 24 is fixedly installed on the top of the rotating rod 22. A steel mating plate 25 is threaded onto the outer wall of the rotating rod 22. Several high-strength screws 26 are threaded through the mating plate 25. When the mating plate 25 abuts against the bottom of the mating seat 41, the regular hexagonal prism 24 is inserted into the corresponding mating groove to transmit torque and prevent relative rotation. Subsequently, the screws 26 are threaded into the pre-set threaded holes in the mating seat 41, thereby firmly locking the top positioning seat 4 onto the rotating rod 22. To protect the surface of the compressor housing, a flexible polyurethane gasket can also be adhered to the embedded grooves of the bottom positioning seat 3 and the top positioning seat 4.

[0024] The remaining structure is the same as that in Example 1.

[0025] Additional notes: The cavity of the rotary table 12 may also be equipped with a cable tray or cable chain system to organize the power and signal lines of the lifting cylinder 21 and prevent them from getting tangled during rotation. A fixed control box may also be installed on the base 1, containing a PLC controller to coordinate the rotation indexing of the servo motor 11, the action sequence of the lifting cylinders 21 at each station, and to receive sensor signals from each station to achieve automated cyclic operation. Each station can be equipped with a workpiece in-position sensor and a clamping in-position sensor, and the signals are fed back to the PLC to ensure that the rotary table 12 is allowed to rotate only after the workpiece is correctly fixed, thus ensuring operational safety.

[0026] The working process of this utility model is as follows: Step 1: Place the workpiece Once the rotary table 12 is indexed into position and stops, at the current loading station, the operator or robot will place the compressor housing to be assembled into the embedding groove of the bottom positioning seat 3, and the lower half of the compressor housing will be precisely positioned in the bottom positioning seat 3.

[0027] The second step is to clamp. After the housing is placed, the control system instructs the lifting cylinder 21 of the station to move, pushing the rotating rod 22 upward. The hexagonal prism 24 at the top of the rotating rod 22 rises accordingly and is precisely inserted into the docking groove of the docking seat 41 of the top positioning seat 4. Subsequently, the operator or automatic tool tightens the screws 26 on the docking plate 25, so that the docking plate 25 presses upward tightly against the bottom of the docking seat 41, thereby firmly locking the top positioning seat 4 at the top of the rotating rod 22. During this process, as the rotating rod 22 continues to rise, the top positioning seat 4 descends synchronously. The embedding groove on its lower surface and the embedding groove of the bottom positioning seat 3 close together, tightly and evenly wrapping the compressor housing in the formed sealed cavity, completing the rapid, stable and surface-free compression and fixing of the workpiece.

[0028] The third step is the transfer and assembly. After the workpiece is fixed, the rotary table 12 receives a signal and performs the next indexing rotation, transferring the fixed compressor to the subsequent workstation for assembly processes such as crankshaft pressing, screw tightening 26, and airtightness testing. During this process, due to the contour design of the top positioning seat 4 and the bottom positioning seat 3, the compressor maintains extremely high stability throughout the assembly process.

[0029] Step 4: Release the workpiece When the compressor completes all assembly processes and moves to the unloading station, the lifting cylinder 21 at this station receives a command and begins to retract, pulling the rotating rod 22 down. First, the docking plate 25 separates from the docking seat 41, and then the regular hexagonal prism 24 exits from the docking groove. The top positioning seat 4 is left on the compressor or supported by a separate mechanism. At this time, the operator or robot can remove the assembled compressor from the bottom positioning seat 3, thus completing a complete work cycle.

[0030] The replacement process of this utility model is as follows: When it is necessary to change the compressor model being manufactured, the changeover process is simple and quick: First, loosen the screws 26 on the docking plates 25 of all workstations to retract the lifting cylinder 21 and separate the rotating rod 22 from the top positioning seat 4 of each workstation.

[0031] Subsequently, all the original top positioning seats 4 and bottom positioning seats 3 were removed from the rotary table 12.

[0032] Next, the new bottom positioning seat 3, which perfectly matches the shape of the new model compressor housing, is inserted into the insertion hole 13 of the rotary table 12 via the insertion shaft 32.

[0033] Finally, the new top positioning seat 4 is placed in place, and the rotating rod 22 is raised by the lifting electric cylinder 21 to complete the locking with the docking seat 41.

[0034] By following the steps above, the equipment can be quickly upgraded to meet the production requirements of new products.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-station rotary compressor assembly table, comprising a base (1) and a rotary table (12) rotatably mounted on top of the base (1), characterized in that, The top of the rotating platform (12) is detachably connected to a bottom positioning seat (3), and a top positioning seat (4) is provided above the bottom positioning seat (3). The bottom positioning seat (3) and the top positioning seat (4) are provided with several oppositely positioned embedding slots on opposite sides. A lifting assembly is installed inside the rotating platform (12). The lifting assembly includes a lifting electric cylinder (21) embedded and fixedly installed in a rotating table (12). The output end of the lifting electric cylinder (21) is equipped with a rotating rod (22) that extends through the bottom positioning seat (3). The top of the rotating rod (22) is detachably installed with the top positioning seat (4).

2. The multi-station rotary compressor assembly table according to claim 1, characterized in that, A servo motor (11) is installed inside the base (1). The output shaft of the servo motor (11) is fixedly connected to the bottom of the rotary table (12) through a reducer. A cavity is opened inside the rotary table (12). The lifting electric cylinder (21) is fixedly installed at the bottom of the cavity. Several insertion holes (13) are opened on the top of the rotary table (12).

3. The multi-station rotary compressor assembly table according to claim 2, characterized in that, The bottom positioning seat (3) has a through hole (31) in the center. Several insert shafts (32) are vertically fixedly installed on the bottom of the bottom positioning seat (3). The several insert shafts (32) are respectively inserted into the corresponding insert holes (13).

4. The multi-station rotary compressor assembly table according to claim 1, characterized in that, The bottom center of the top positioning seat (4) is fixedly installed with a docking seat (41), and the bottom of the docking seat (41) is provided with a docking groove.

5. A multi-station rotary compressor assembly table according to claim 3, characterized in that, Several guide blocks (23) are vertically fixed on the outer wall of the rotating rod (22), and the rotating rod (22) and the several guide blocks (23) are inserted into the corresponding through holes (31) in a matching manner.

6. A multi-station rotary compressor assembly table according to claim 4, characterized in that, A regular hexagonal prism (24) is fixedly installed on the top of the rotating rod (22). A mating plate (25) is threaded onto the outer wall of the rotating rod (22). Several screws (26) are threaded through the mating plate (25). When the mating plate (25) abuts against the bottom of the mating seat (41), the regular hexagonal prism (24) is inserted into the corresponding mating groove, and several screws (26) are threaded into the mating seat (41).

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