Compressor cylinder alignment device

Abstract

The utility model discloses a compressor cylinder alignment device which comprises a working table and a servo rotating table used for driving a cylinder to rotate horizontally, the servo rotating table is arranged on the working table, and a center positioning column used for being inserted into the cylinder in a relatively upward mode is arranged on the servo rotating table. The workbench is provided with a correlation type photoelectric sensor used for detecting a barrel placed on the servo rotating table, and the workbench is provided with a proximity switch used for detecting a rolling welding seam of the barrel. The positioning pin is used for being connected with an air inlet pipe of the cylinder in an inserted mode, and a conical surface used for making contact with an outer end pipe opening of the air inlet pipe is formed at one end of the positioning pin; the positioning pin cylinder is used for driving the positioning pin to move in the radial direction of the barrel and is in driving connection with the positioning pin, and the control system is electrically connected with the correlation type photoelectric sensor and the proximity switch and is in control connection with the servo rotating table. The alignment device for the cylinder of the compressor is favorable for improving the production efficiency and reducing the labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for compressor housing production, specifically to a compressor cylinder alignment device. Background Technology

[0002] Currently, the compressor casing includes a cylinder, such as the "Compressor Casing" in Chinese Utility Model Patent Publication No. CN204984798U. The cylinder is cylindrical and is currently formed by rolling steel plates. The ends of the steel plates are then welded together to form a rolled weld. The rolled weld protrudes outward from the cylinder by about 1.5 mm to 2 mm, so the rolled weld is parallel to the axis of the cylinder. An intake pipe is welded to one side of the cylinder, and the axis of the intake pipe is along the radius of the cylinder. The intake pipe and the rolled weld are located on opposite sides of the cylinder, that is, the intake pipe and the rolled weld are distributed at 180°. Specifically, the middle of the ends of the steel plate is pre-machined with round holes. So after rolling the steel plate into a cylinder, the intake pipe is welded to the edge of the round hole, which makes the circumferential relative position of the intake pipe and the rolled weld determined. After the intake pipe is welded to the cylinder, the compressor casing still needs to undergo subsequent processing and assembly. These processing and assembly processes are related to the position of the intake pipe. Currently, after the intake pipe is welded to the cylinder, it is transported via a cylinder conveyor line. In some subsequent processes, robots are set up to pick up the welded parts of the cylinder and intake pipe on the cylinder conveyor line. However, in actual production, it is inevitable that the position of the intake pipe will deviate significantly from the required position. Therefore, it was later modified to have the welded parts of the cylinder and intake pipe on the cylinder conveyor line be placed on a workbench by hand for manual circumferential alignment. That is, the cylinder is rotated around its axis by hand to make the intake pipe rotate to the correct position so that the robot can pick it up. However, this operation is not only labor-intensive, but also prone to errors, which has to slow down the production pace and is not conducive to improving production efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a compressor cylinder alignment device, which is beneficial to improving production efficiency and reducing labor intensity.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The compressor cylinder alignment device disclosed in this utility model includes a worktable and a servo rotary table for driving the cylinder to rotate horizontally. The servo rotary table is disposed on the worktable and has a central positioning pin for being inserted into the cylinder from the opposite direction. The worktable is provided with a through-beam photoelectric sensor for detecting the cylinder placed on the servo rotary table, and a proximity switch for detecting the rolled weld seam of the cylinder. It also includes a control system and a positioning pin for inserting the air inlet pipe of the cylinder. One end of the positioning pin has a conical surface for contacting the outer end of the air inlet pipe. It also includes a positioning pin cylinder for driving the positioning pin to move radially along the cylinder. The positioning pin cylinder is driven and connected to the positioning pin. The control system is electrically connected to the through-beam photoelectric sensor and the proximity switch, and the control system is controlled and connected to the servo rotary table.

[0006] Preferably, the workbench is provided with a material handling robot assembly for transferring cylinders from the cylinder conveyor line to the servo rotary table, and the control system controls and connects to the material handling robot assembly.

[0007] Preferably, the compressor cylinder alignment device of this utility model further includes a positioning pin adjustment mechanism. The positioning pin adjustment mechanism includes a fixed seat, an adjustment screw, and a lifting seat. The lifting seat is slidably connected to the fixed seat, the adjustment screw is rotatably connected to the fixed seat, and the adjustment screw is screwed to the lower part of the lifting seat. The fixed seat is installed and connected to the worktable. The cylinder body of the positioning pin cylinder is installed on the top of the lifting seat, and the piston rod of the positioning pin cylinder is installed and connected to the corresponding other end of the positioning pin.

[0008] Preferably, the positioning pin includes a plug and a rod, the conical surface is formed at one end of the plug, the corresponding other end of the plug is detachably connected to the rod, and the end of the piston rod of the positioning pin cylinder is connected to the rod.

[0009] Preferably, the upper outer periphery of the central positioning post has a rounded corner.

[0010] Compared with the prior art, the advantages of this utility model are as follows: By setting up a workbench and a servo rotary table for driving the cylinder to rotate horizontally, the servo rotary table is set on the workbench and has a central positioning pin for being inserted into the cylinder from the opposite direction. The workbench is equipped with a through-beam photoelectric sensor for detecting the cylinder placed on the servo rotary table, and a proximity switch for detecting the rolled weld seam of the cylinder. A control system and a positioning pin for inserting the air inlet pipe of the cylinder are also set up. One end of the positioning pin forms a conical surface for contacting the outer end of the air inlet pipe. A positioning pin cylinder is also set up to drive the positioning pin to move radially along the cylinder. The positioning pin cylinder drives the positioning pin. The control system is electrically connected to the through-beam photoelectric sensor and the proximity switch. The control system controls the servo rotary table. This eliminates the need for manual rotation of the cylinder, thereby reducing labor intensity and improving production efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the compressor cylinder alignment device of this utility model.

[0012] Figure 2 This is a three-dimensional structural diagram of the compressor cylinder alignment device of this utility model, which has removed the material handling robot assembly.

[0013] Figure 3 This is a top view of the combination of the cylinder and the proximity switch.

[0014] Figure 4 This is a cross-sectional view of the compressor cylinder alignment device of this utility model, which has had its material handling robot assembly removed, from the right-side view.

[0015] Figure 5 This is a cross-sectional view of the positioning pin of this utility model.

[0016] Figure 6 This is a front view schematic diagram of the combination of the compressor cylinder alignment device and the cylinder conveyor line of this utility model.

[0017] Labeling Explanation: Workbench 1; Servo Rotary Table 2; Center Positioning Column 21; Inlet Rounded Corner 2101; Tray 22; Proximity Switch 3; Positioning Pin 4; Plug 41; Rod 42; Conical Surface 4001; Positioning Pin Cylinder 5; Through-beam Photoelectric Sensor 6; Material Handling Robot Assembly 7; Clamping Block 71; Vertical Shift Drive Cylinder 72; Horizontal Shift Drive Cylinder 73; Horizontal Shift Seat 74; Vertical Shift Seat 75; Positioning Pin Up / Down Adjustment Mechanism 8; Fixed Seat 81; Adjustment Screw 82; Lifting Seat 83; Cylinder 99; Air Inlet Pipe 991; Rolled Weld Seat 9901; Cylinder Conveyor Line 98. Detailed Implementation

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] The compressor cylinder alignment device of this utility model, such as Figures 1 to 4 As shown, the system includes a worktable 1 and a servo rotary table 2 for driving the cylinder 99 to rotate horizontally. The worktable 1 includes a frame and a table plate, with the table plate horizontally positioned and covering the top of the frame. The servo rotary table 2 is prior art; for example, refer to Chinese Utility Model Patent Publication No. CN213471101U, "A Servo Rotary Table for a Medium Hole." The servo rotary table 2 is mounted on the worktable 1 and includes a rotating disk and a servo motor. The rotating disk is located on the upper side of the table plate of the worktable 1, while the servo motor is located on the lower side of the table plate. Figure 2 and Figure 4 As shown, the servo rotary table 2 is provided with a central positioning post 21 for relative upward insertion into the cylinder 99. Specifically, a tray 22 is coaxially mounted on the aforementioned rotary table, and the lower end of the central positioning post 21 is mounted on the tray 22 by corresponding screws. The central positioning post 21 is coaxially arranged with the aforementioned rotary table, and the axis of the central positioning post 21 is perpendicular to the horizontal plane. Figure 1 and Figure 2 As shown, the worktable 1 is equipped with a through-beam photoelectric sensor 6 for detecting the cylinder 99 placed on the servo rotary table 2. Specifically, the worktable 1 is equipped with a sensor bracket, and the through-beam photoelectric sensor 6 is installed on the upper part of the corresponding sensor bracket. The through-beam photoelectric sensors 6 are distributed on both sides of the aforementioned rotary table, as shown. Figure 1 and Figure 2 As shown, a proximity switch 3 for detecting the rolled weld seam 9901 of the cylinder 99 is provided on the workbench 1. A switch bracket is installed on the workbench 1, and the proximity switch 3 is mounted on the switch bracket. Figure 2 and Figure 4 As shown, the compressor cylinder alignment device of this utility model also includes a control system and a positioning pin 4 for inserting the air inlet pipe 991 into the cylinder 99, as shown. Figure 5 As shown, one end of the locating pin 4 has a conical surface 4001 for contacting the outer end opening of the intake pipe 991; as Figure 4 As shown, the compressor cylinder alignment device of this utility model also includes a positioning pin cylinder 5 for driving the positioning pin 4 to move radially along the cylinder 99. The positioning pin cylinder 5 drives and connects to the positioning pin 4. The control system is electrically connected to the through-beam photoelectric sensor 6 and the proximity switch 3. The control system is controlled and connected to the servo rotary table 2.

[0020] The working principle of this utility model is briefly explained below: Figure 1 and Figure 6As shown, the cylinder 99 is conveyed on the cylinder conveyor line 98. The cylinder 99 is transferred from the cylinder conveyor line 98 to the worktable 1. Specifically, the cylinder 99 is lowered from above onto the servo rotary table 2. During this process, the central positioning pin 21 is inserted into the cylinder 99 with its orientation upwards. Figure 4 As shown, specifically, the tray 22 contacts the lower end face of the support cylinder 99, and there is a small gap between the central positioning post 21 and the inner wall of the cylinder 99 (the inner diameter of the cylinder 99 is 0.2 mm to 0.4 mm larger than the outer diameter of the central positioning post 21). Figure 1 As shown, at this time, the lower part of the cylinder 99 blocks the through-beam photoelectric sensor 6, thus triggering the through-beam photoelectric sensor 6. The control system controls the servo motor of the servo rotary table 2 to work according to the signal from the through-beam photoelectric sensor 6. The servo motor of the servo rotary table 2 drives the aforementioned rotating disk and tray 22 to rotate, and the tray 22 drives the cylinder 99 to rotate through friction. Figure 3 As shown, when the weld seam 9901 of the cylinder 99 rotates to the corresponding position of the proximity switch 3, the weld seam 9901 triggers the proximity switch 3. The proximity switch 3 is a model with a small detection distance, such as a proximity switch with a detection distance of 2 mm. The control system controls the servo rotary table 2 to stop rotating according to the signal from the proximity switch 3. The control system then controls the positioning pin cylinder 5 to drive the positioning pin 4 to move towards the rotation axis of the rotary disk. Since the circumferential relative position between the air inlet pipe 991 and the weld seam 9901 is fixed, the end of the positioning pin 4 can be inserted into the air inlet pipe 991. Figure 4 and Figure 5As shown, because the positioning pin 4 has a conical surface 4001, its end gradually tapers in the direction pointing from the outside to the rotation axis of the rotating disk. Therefore, the smaller end of the positioning pin 4 is first inserted into the air intake pipe 991. As the positioning pin 4 gradually penetrates deeper into the air intake pipe 991, the conical surface 4001 contacts the outer end of the air intake pipe 991. The positioning pin 4 pushes and guides the air intake pipe 991, causing it to gradually align with the positioning pin 4. Finally, the conical surface 4001 coaxially contacts the outer end of the air intake pipe 991, thus completing the alignment of the cylinder 99. The positioning pin 4 pushes and guides the air inlet pipe 991, causing the cylinder 99 to slide slightly circumferentially relative to the tray 22. The central positioning column 21 radially supports the cylinder 99. The control system delays the movement of the positioning pin cylinder 5, causing the positioning pin 4 to retract and reset, disengaging it from the air inlet pipe 991. At this point, the robot in the subsequent process can pick up the cylinder 99 from the servo rotary table 2. During this process, the air inlet pipe 991 is in the correct orientation relative to the robot's gripper, ensuring that the cylinder 99 is correctly positioned when the robot releases it onto the fixture of the subsequent process. As can be seen from the above, by setting up the compressor cylinder alignment device of this invention, the cylinder 99 can be automatically aligned, which improves the accuracy of cylinder alignment and eliminates the need for manual rotation of the cylinder 99, thereby reducing labor intensity and improving production efficiency.

[0021] Furthermore, such as Figure 1As shown, the worktable 1 is equipped with a material handling robot assembly 7 for transferring cylinders 99 from the cylinder conveyor line 98 to the servo rotary table 2. The control system controls and connects to the material handling robot assembly 7. Specifically, the material handling robot assembly 7 includes a clamping block 71, a vertical drive cylinder 72, a horizontal drive cylinder 73, a horizontal seat 74, and a vertical seat 75. A robot support is installed on the worktable 1. The horizontal seat 74 is horizontally slidably connected to the upper end of the robot support. The piston rod of the horizontal drive cylinder 73 is installed and connected to the horizontal seat 74. The vertical drive cylinder 72 is installed on the horizontal seat 74. The vertical seat 75 is slidably connected to the horizontal seat 74 via a linear bearing. The piston rod of the vertical drive cylinder 72 is installed and connected to the vertical seat 75. A finger cylinder is installed at the bottom of the vertical seat 75. The clamping block 71 is installed on the finger clamp of the finger cylinder. The clamping block 71 forms a V-shaped groove extending in the vertical direction. The V-shaped groove is used to contact the outer wall of the cylinder 99. Therefore, when the control system uses a through-beam photoelectric sensor... When device 6 detects that cylinder 99 has left servo rotary table 2, the control system then controls the material handling robot assembly 7 to transfer the next cylinder 99 from cylinder conveyor line 98 to servo rotary table 2. Specifically, the end blocking structure of cylinder conveyor line 98 stops the cylinder 99 queue. The control system controls the finger cylinder to drive the clamping block 71 to clamp the next cylinder 99. Then, the control system controls the vertical movement drive cylinder 72 to move cylinder 99 upward. The cylinder 99 queue on cylinder conveyor line 98 is transported to the end blocking structure. The control system controls the horizontal movement drive cylinder 73 to move cylinder 99 horizontally to directly above tray 22. The vertical movement drive cylinder 72 moves cylinder 99 downward. The finger cylinder drives the clamping block 71 to release cylinder 99. The vertical movement drive cylinder 72 moves the clamping block 71 upward, and so on. Thus, by setting the material handling robot assembly 7 to automatically transfer cylinder 99 from cylinder conveyor line 98 to servo rotary table 2, the labor intensity can be further reduced.

[0022] Furthermore, such as Figure 2 As shown, the compressor cylinder alignment device also includes a positioning pin up-and-down adjustment mechanism 8, such as... Figure 4 As shown, the positioning pin adjustment mechanism 8 includes a fixed seat 81, an adjustment screw 82, and a lifting seat 83. The lifting seat 83 (via a dovetail groove structure) is slidably connected to the fixed seat 81. The adjustment screw 82 is rotatably connected to the fixed seat 81 and screwed to the lower part of the lifting seat 83. The fixed seat 81 is mounted and connected to the worktable 1. The cylinder body of the positioning pin cylinder 5 is mounted on the top of the lifting seat 83. Specifically, the two ends of the cylinder body of the positioning pin cylinder 5 are respectively mounted and connected to the lifting seat 83 via corner seats. The piston rod of the positioning pin cylinder 5 is coaxially mounted and connected to the corresponding other end of the positioning pin 4. Thus, the axis of the piston rod of the positioning pin cylinder 5 is perpendicularly intersecting the rotation axis of the tray 22. Figure 4As shown, when the adjusting screw 82 is rotated, the adjusting screw 82 can drive the lifting seat 83 to move up and down for adjustment, thereby allowing the positioning pin 4 to be adjusted up and down to adapt to different specifications of cylinder 99 (specifically, the height position of the air inlet pipe 991 is different). A handwheel can be installed at the lower end of the adjusting screw 82.

[0023] Furthermore, such as Figure 5 As shown, the positioning pin 4 includes a plug 41 and a rod 42. A conical surface 4001 is formed at one end of the plug 41, and the corresponding other end of the plug 41 is detachably connected to the rod 42. Specifically, the corresponding other end of the plug 41 is coaxially screwed to the rod 42, such as... Figure 4 As shown, the piston rod of the positioning pin cylinder 5 is connected to the rod part 42 by coaxial screw connection at the end, so that the conical surface 4001 is coaxial with the piston rod of the positioning pin cylinder 5. Since the plug 41 and the rod part 42 are detachably connected, the plug 41 can be disassembled and replaced after it is worn.

[0024] Furthermore, such as Figure 4 As shown, the upper outer periphery of the central positioning post 21 has an inlet fillet 2101. That is to say, during the process of placing the cylinder 99 downward onto the tray 22, the lower end of the cylinder 99 first approaches the upper end of the central positioning post 21. If the eccentricity between the cylinder 99 and the central positioning post 21 is large, the inlet fillet 2101 will touch the lower end of the cylinder 99. By guiding the lower end of the cylinder 99 through the inlet fillet 2101, the cylinder 99 is slightly horizontally displaced (the cylinder 99 slightly pushes open the aforementioned finger cylinder), so that the cylinder 99 can be fitted onto the central positioning post 21, that is, the central positioning post 21 is inserted into the cylinder 99 with the central positioning post facing upward.

Claims

1. A compressor cylinder alignment device, characterized in that: The system includes a worktable (1) and a servo rotary table (2) for driving the cylinder (99) to rotate horizontally. The servo rotary table (2) is mounted on the worktable (1). The servo rotary table (2) is provided with a central positioning column (21) for being inserted into the cylinder (99) from the opposite direction. The worktable (1) is provided with a through-beam photoelectric sensor (6) for detecting the cylinder (99) placed on the servo rotary table (2). The worktable (1) is provided with a proximity switch (3) for detecting the rolled weld seam (9901) of the cylinder (99). The system includes a control system and a positioning pin (4) for inserting the air inlet pipe (991) into the cylinder (99), one end of which is formed with a conical surface (4001) for contacting the outer end of the air inlet pipe (991); it also includes a positioning pin cylinder (5) for driving the positioning pin (4) to move radially along the cylinder (99), the positioning pin cylinder (5) driving the positioning pin (4), the control system being electrically connected to the through-beam photoelectric sensor (6) and the proximity switch (3), and the control system being controlled by the servo rotary table (2).

2. The compressor cylinder alignment device according to claim 1, characterized in that: The workbench (1) is provided with a material handling robot assembly (7) for transferring cylinders (99) on the cylinder conveyor line (98) to the servo rotary table (2), and the control system controls and connects to the material handling robot assembly (7).

3. The compressor cylinder alignment device according to claim 1, characterized in that: It also includes a positioning pin adjustment mechanism (8), which includes a fixed seat (81), an adjustment screw (82) and a lifting seat (83). The lifting seat (83) is slidably connected to the fixed seat (81), the adjustment screw (82) is rotatably connected to the fixed seat (81), the adjustment screw (82) is screwed to the lower part of the lifting seat (83), the fixed seat (81) is installed and connected to the worktable (1), the cylinder body of the positioning pin cylinder (5) is installed on the top of the lifting seat (83), and the piston rod of the positioning pin cylinder (5) is installed and connected to the other end of the positioning pin (4).

4. The compressor cylinder alignment device according to claim 1, characterized in that: The positioning pin (4) includes a plug (41) and a rod (42). The conical surface (4001) is formed at one end of the plug (41). The other end of the plug (41) is detachably connected to the rod (42). The end of the piston rod of the positioning pin cylinder (5) is connected to the rod (42).

5. The compressor cylinder alignment device according to claim 1, characterized in that: The upper outer periphery of the central positioning post (21) is formed with a fillet (2101).

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