Squirrel cage grid positioning assembly

Abstract

The utility model relates to the technical field of assembling equipment, especially to squirrel cage grating positioning and assembling device, the utility model discloses a squirrel cage grating positioning and assembling device is through first feeding mechanism and second feeding mechanism respectively automatic feeding first workpiece and second workpiece, utilizes the positioning rotary table to provide multiple assembling stations, and through the double clamping end of assembling mechanical hand realizes the accurate positioning of first workpiece and the synchronous assembling of second workpiece, greatly improves assembling efficiency and precision. The blanking mechanism adopts the material collecting module with movable platform, and continuous production and product collection are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of assembly equipment technology, and in particular to a positioning and assembly device for a rat cage grid. Background Technology

[0002] Currently, squirrel cage grilles are used for sealing in mixing valves. The squirrel cage grille consists of two annular sealing rings connected by several connecting posts. In actual production, locking holes or insert structures are usually provided at the ends of the connecting posts. The locking holes and inserts work together to allow the two sealing rings to interlock and connect as a single unit.

[0003] With the development of technology, the assembly of rat cage grilles has gradually shifted from manual to automatic. Although this has reduced labor intensity and improved assembly efficiency to some extent, the relatively complex mating surface structure of the two sealing rings makes it difficult for automatic assembly equipment to achieve precise assembly, resulting in poor assembly quality and overall assembly efficiency that needs to be improved. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a mouse cage grid positioning and assembly device, comprising: frame; The first feeding mechanism is mounted on the frame and is used to feed the first workpiece; The second feeding mechanism is installed on the frame and is used to feed the second workpiece; A positioning rotary table is rotatably mounted on the frame, and the positioning rotary table is provided with at least two assembly stations; An assembly robot is mounted on the frame and has two gripping ends. The two gripping ends can respectively grip the first workpiece output by the first feeding mechanism and the second workpiece output by the second feeding mechanism, and sequentially position and fix the first workpiece on the assembly station and assemble the second workpiece on the first workpiece on the assembly station. The unloading mechanism, which is mounted on the frame, is used to unload the assembled products at the assembly station.

[0005] In some possible embodiments, the first feeding mechanism includes a first hopper, a first vibrating feeder connected to the first hopper, and a positioning seat installed on the output end of the first vibrating feeder. The first hopper and the first vibrating feeder are both installed on the frame. The positioning seat is provided with a positioning station. Positioning cylinders are provided on opposite sides of the positioning station. Positioning blocks are provided on the extension and retraction ends of the positioning cylinders. A pair of positioning cylinders can drive the corresponding positioning blocks to cooperate and clamp each other to position the first workpiece at the positioning station. The corresponding clamping end of the assembly robot can clamp the first workpiece at the positioning station.

[0006] In some possible embodiments, a limiting cylinder is installed on the output end of the first vibrating feeder. The limiting cylinder extends and retracts along the conveying direction of the first vibrating feeder. A limiting plate is provided on the extension end of the limiting cylinder. The limiting cylinder can drive the limiting plate to extend above the positioning station to limit the first workpiece on the positioning station.

[0007] In some possible embodiments, the second feeding mechanism includes a second hopper, a second vibrating feeder connected to the output end of the second hopper, and a limiting seat installed on the output end of the second vibrating feeder. Both the second hopper and the second vibrating feeder are installed on the frame, and the corresponding clamping end of the assembly robot can clamp the second workpiece on the limiting seat.

[0008] In some possible embodiments, the assembly robot includes a frame mounted on the frame, a horizontal rail mounted on the frame, a sliding seat slidably mounted on the horizontal rail, and a drive mechanism mounted on the frame. The drive mechanism is used to drive the sliding seat to slide on the horizontal rail. A lifter is provided on the sliding seat, and a mounting frame is mounted on the lifter. A pair of grippers are provided on the mounting frame. The pair of grippers can respectively grip a first workpiece output by the first feeding mechanism and a second workpiece output by the second feeding mechanism. When the drive mechanism drives the two grippers to move above the assembly station, one gripper positions and fixes the first workpiece on the assembly station, and the other gripper assembles the second workpiece onto the first workpiece on the assembly station.

[0009] In some possible embodiments, the positioning rotary table includes a support, a rotary cylinder mounted on the support, and a rotary seat mounted on the rotating end of the rotary cylinder. The support is mounted on the frame, and the rotary seat is provided with at least two assembly stations. One gripping end of the assembly robot can transfer the first workpiece output by the first feeding mechanism to the assembly station, and the other gripping end can assemble the second workpiece output by the second feeding mechanism onto the first workpiece at the assembly station.

[0010] In some possible embodiments, industrial cameras are provided on the frame in corresponding areas at the output ends of the first and second feeding mechanisms.

[0011] In some possible embodiments, a waste bin is provided on one side of the frame at the output end of the first feeding mechanism and the output end of the second feeding mechanism.

[0012] In some possible embodiments, the unloading mechanism includes an unloading robot, a sliding guide rail, a sliding platform slidably mounted on the sliding guide rail, and at least two squirrel cage grid receiving modules mounted on the sliding platform with rotatable turntables. The unloading robot and the sliding guide rail are both mounted on the frame. The unloading robot can unload the assembled products on the positioning rotary table onto the squirrel cage grid receiving modules. The frame is provided with a position adjuster for driving the sliding platform to slide on the sliding guide rail.

[0013] In some possible embodiments, each of the squirrel cage grid receiving modules includes a base, a drive motor, a turntable, and several rubber cylinders disposed on the turntable, the rubber cylinders being capable of receiving products held by the unloading robot; the base is mounted on a sliding platform, the turntable is rotatably mounted on the base, and the rotating end of the drive motor is drively connected to the rotation center of the turntable.

[0014] Compared to existing technologies, the advantages of this invention are as follows: The cage grid positioning and assembly device of this invention automatically feeds the first and second workpieces through a first feeding mechanism and a second feeding mechanism, respectively. Multiple assembly stations are provided using a positioning rotary table, and the precise positioning of the first workpiece and the synchronous assembly of the second workpiece are achieved through the dual gripping ends of the assembly robot, greatly improving assembly efficiency and accuracy. The unloading mechanism adopts a movable receiving module, facilitating continuous production and product collection. Furthermore, the inclusion of an industrial camera and a waste bin further ensures product quality and automation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0016] Figure 1 Schematic diagram of the structure of the mouse cage grid positioning and assembly device provided in the embodiment of this utility model Figure 1 ; Figure 2 Schematic diagram of the structure of the mouse cage grid positioning and assembly device provided in the embodiment of this utility model Figure 2 ; Figure 3 A partial structural schematic diagram of the first feeding mechanism provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the assembly robot provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the positioning rotary table provided in an embodiment of the present utility model; Figure 6 This is a partial structural schematic diagram of the feeding mechanism provided in an embodiment of the present utility model.

[0017] Figure label: 100 racks, 110 industrial cameras, 120 waste bins; First feeding mechanism 200, first hopper 210, first vibrating feeder 220, positioning seat 230, positioning station 240, positioning cylinder 250, positioning block 260, limit cylinder 270, limit plate 280; Second feeding mechanism 300, second hopper 310, second vibrating feeder 320, limit seat 330; Positioning rotary table 400, assembly station 410, bracket 420, rotary cylinder 430, rotary seat 440; Assembly robot 500, frame 510, horizontal rail 520, sliding seat 530, drive mechanism 540, lifting device 550, mounting frame 560, gripper 570; The components include: a feeding mechanism 600, a feeding robot 610, a sliding guide rail 620, a sliding platform 630, a squirrel cage grid receiving module 640, a base 641, a drive motor 642, a turntable 643, a glue cylinder 644, and a position adjuster 650. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figures 1 to 6 A positioning and assembly device for a rat cage grille includes a frame 100, a first feeding mechanism 200, a second feeding mechanism 300, a positioning rotary table 400, an assembly robot 500, and an unloading mechanism 600. The first feeding mechanism 200 is mounted on the frame 100 and is used to feed a first workpiece. The second feeding mechanism 300 is mounted on the frame 100 and is used to feed a second workpiece. The positioning rotary table 400 is rotatably mounted on the frame 100 and has at least two assembly stations 410. The assembly robot 500 is mounted on the frame 100. The assembly robot 500 has two clamping ends. The two clamping ends can respectively clamp the first workpiece output by the first feeding mechanism 200 and the second workpiece output by the second feeding mechanism 300, and sequentially position and fix the first workpiece on the assembly station 410 and assemble the second workpiece on the first workpiece on the assembly station 410. The unloading mechanism 600 is mounted on the frame 100 and is used to unload the assembled products on the assembly station 410.

[0020] Specifically, the frame 100 provides support and a mounting foundation for the entire device, typically constructed from welded or bolted profiles, offering excellent rigidity and stability. The first and second workpieces are the two sealing rings of a squirrel cage grille. The positioning rotary table 400 enables continuous multi-station operation by rotating and switching assembly stations 410, thereby improving production efficiency. The assembly robot 500's dual-gripping end design allows for simultaneous processing of the first and second workpieces, reducing waiting time and ensuring the continuity of the assembly process.

[0021] This cage grid positioning and assembly device integrates feeding, positioning, assembly, and unloading functions to achieve fully automated operation. The first feeding mechanism 200 and the second feeding mechanism 300 provide the first and second workpieces, respectively. The assembly robot 500 uses its dual gripping ends to transfer the workpieces to the assembly station 410 of the positioning rotary table 400 for precise positioning and assembly. The unloading mechanism 600 automatically collects the completed products, greatly reducing manual intervention and improving assembly accuracy and consistency.

[0022] See Figure 2 and Figure 3The first feeding mechanism 200 includes a first hopper 210, a first vibrating feeder 220 connected to the first hopper 210, and a positioning seat 230 installed on the output end of the first vibrating feeder 220. The first hopper 210 and the first vibrating feeder 220 are both installed on the frame 100. The positioning seat 230 is provided with a positioning station 240. Positioning cylinders 250 are provided on both sides of the positioning seat 230 located at the positioning station 240. Positioning blocks 260 are provided on the extension and retraction ends of the positioning cylinders 250. A pair of positioning cylinders 250 can drive the corresponding positioning blocks 260 to cooperate and clamp each other to position the first workpiece on the positioning station 240. The corresponding clamping end of the assembly robot 500 can clamp the first workpiece on the positioning station 240. The first vibrating feeder 220 conveys the first workpiece from the first hopper 210 to the positioning station 240 in an orderly manner via vibration. Positioning cylinders 250 on both sides drive corresponding positioning blocks 260 to clamp the connecting posts on the first workpiece from both sides of the positioning station 240, ensuring accurate positioning for easy gripping by the assembly robot 500. In practical applications, the positioning blocks 260 can be V-shaped or custom-shaped to meet the positioning requirements of the sealing ring.

[0023] To further stabilize the position of the first workpiece at the positioning station 240, a limiting cylinder 270 is installed on the output end of the first vibrating feeder 220. The limiting cylinder 270 extends and retracts along the conveying direction of the first vibrating feeder 220. A limiting plate 280 is provided on the extending end of the limiting cylinder 270. The limiting cylinder 270 can drive the limiting plate 280 to extend above the positioning station 240 to limit the first workpiece on the positioning station 240. After the first workpiece arrives at the positioning station 240, the limiting cylinder 270 drives the limiting plate 280 to extend and press the first workpiece. This prevents the first workpiece from moving upwards when a pair of positioning cylinders 250 clamp and position the first workpiece through the corresponding positioning blocks 260, thus improving the reliability of feeding.

[0024] See Figure 2The second feeding mechanism 300 includes a second hopper 310, a second vibrating feeder 320 connected to the output end of the second hopper 310, and a limiting seat 330 installed on the output end of the second vibrating feeder 320. Both the second hopper 310 and the second vibrating feeder 320 are mounted on the frame 100. The corresponding gripping end of the assembly robot 500 can grip the second workpiece on the limiting seat 330. The second vibrating feeder 320 transports the second workpiece from the second hopper 310 to the limiting seat 330. The limiting seat 330 can be designed with a guide groove to ensure the second workpiece is in the correct posture for gripping. The spatial posture of the second workpiece on the limiting seat 330 is opposite to that of the first workpiece on the positioning station 240. The connecting post on the second workpiece is set downwards, while the connecting post on the first workpiece is set upwards, so that the assembly robot 500 can directly engage with the first workpiece after gripping the second workpiece.

[0025] See Figure 4 The assembly robot 500 includes a frame 510 mounted on a frame 100, a horizontal rail 520 mounted on the frame 510, a sliding seat 530 slidably mounted on the horizontal rail 520, and a drive mechanism 540 mounted on the frame 510. The drive mechanism 540 drives the sliding seat 530 to slide on the horizontal rail 520. A lifter 550 is provided on the sliding seat 530, and a mounting frame 560 is mounted on the lifter 550. A pair of gripping grippers 570 are provided on the mounting frame 560. The pair of gripping grippers 570 can respectively grip the first workpiece output by the first feeding mechanism 200 and the second workpiece output by the second feeding mechanism 300. When the drive mechanism 540 drives the two gripping grippers 570 to move above the assembly station 410, one gripping gripper 570 positions and fixes the first workpiece on the assembly station 410, and the other gripping gripper 570 assembles the second workpiece on the first workpiece on the assembly station 410. The drive mechanism 540 can be driven by a servo motor with a lead screw or a cylinder to achieve precise movement of the sliding seat 530. The lifting device 550 uses a cylinder or electric push rod to control the vertical movement of the mounting frame 560. The gripper 570 is designed according to the shape of the workpiece, such as a pneumatic finger or a vacuum suction cup, to ensure stable gripping. The dual-gripper design of the assembly robot 500 allows the processing of two workpieces in a single movement, significantly improving efficiency.

[0026] See Figure 1 and Figure 5The positioning rotary table 400 includes a support 420, a rotary cylinder 430 mounted on the support 420, and a rotary seat 440 mounted on the rotating end of the rotary cylinder 430. The support 420 is mounted on the frame 100. The rotary seat 440 has at least two assembly stations 410. One gripping end of the assembly robot 500 can transfer the first workpiece output by the first feeding mechanism 200 to the assembly station 410, and the other gripping end can assemble the second workpiece output by the second feeding mechanism 300 onto the first workpiece at the assembly station 410. The rotary cylinder 430 drives the rotary seat 440 to rotate intermittently, allowing the assembly station 410 to switch between different stations, such as the feeding station, assembly station, and unloading station. Fixtures or fixing jigs can be set on the assembly station 410 to fix the first workpiece, facilitating the assembly process. In practical applications, the rotary seat 440 can be designed as a disc or other shape, with multiple assembly stations 410 evenly arranged circumferentially to achieve continuous production.

[0027] See Figure 1 and Figure 2 Industrial cameras 110 are installed on the frame 100 in corresponding areas at the output ends of the first feeding mechanism 200 and the second feeding mechanism 300. The industrial cameras 110 are used for visual inspection, identifying the position, orientation, and defects of workpieces to ensure that only qualified workpieces are assembled. The industrial cameras 110 are electrically connected to the back-end control system. When a defective product is detected, the assembly robot 500 can be triggered to skip it or place it in the waste bin. The industrial cameras 110, the back-end control system, and the assembly robot 500 use conventional electrical connections, the specific connection structure of which is conventional technology in the field and will not be described in detail here. Waste bins 120 are installed on one side of the frame 100 at the output ends of the first feeding mechanism 200 and the second feeding mechanism 300. The waste bins 120 collect detected defective workpieces, keeping the working area clean and facilitating subsequent processing.

[0028] See Figure 6The unloading mechanism 600 includes an unloading robot 610, a sliding guide rail 620, a sliding platform 630 slidably mounted on the sliding guide rail 620, and at least two cage grid receiving modules 640 mounted on the sliding platform 630 with rotatable turntables. The unloading robot 610 and the sliding guide rail 620 are both mounted on the frame 100. The unloading robot 610 unloads assembled products from the positioning rotary table 400 onto the cage grid receiving modules 640. The frame 100 is equipped with a position adjuster 650 for driving the sliding platform 630 to slide on the sliding guide rail 620. The unloading robot 610 is a multi-joint robot or a Cartesian coordinate robot, and its gripping end is designed according to the product shape. The sliding platform 630 moves on the sliding guide rail 620 driven by the position adjuster 650, allowing different cage grid receiving modules 640 to alternately receive products, achieving continuous unloading without interrupting the assembly process. The position adjuster 650 can be a structure consisting of a cylinder or a servo motor in conjunction with a lead screw.

[0029] Furthermore, each cage grid receiving module 640 includes a base 641, a drive motor 642, a turntable 643, and several rubber cylinders 644 mounted on the turntable 643. The rubber cylinders 644 can receive products held by the unloading robot 610. The base 641 is mounted on a sliding platform 630, and the turntable 643 is rotatably mounted on the base 641. The rotating end of the drive motor 642 is connected to the rotation center of the turntable 643. The drive motor 642 drives the turntable 643 to rotate, causing the rubber cylinders 644 to move sequentially to the unloading position. The unloading robot 610 then places the product into an empty rubber cylinder 644. When a set of rubber cylinders 644 is full, the drive motor 642 drives the turntable 643 to rotate, allowing the next empty rubber cylinder 644 to receive the product, until all rubber cylinders 644 in the same cage grid receiving module 640 are full, achieving seamless switching. Buffer material can be placed inside the rubber cylinders 644 to prevent product damage.

[0030] In actual production, the first feeding mechanism 200 transports the first workpiece to the positioning station 240 via the first vibrating feeder 220. A pair of positioning cylinders 250 drive the corresponding positioning blocks 260 to precisely position the first workpiece on the positioning station 240. The limiting cylinder 270 drives the limiting plate 280 to extend and restrict the upward movement of the first workpiece, ensuring that the first workpiece remains stable during the positioning process. After the first workpiece is positioned, the two positioning blocks 260 release the first workpiece, and at the same time, the limiting cylinder 270 drives the limiting plate 280 to retract, avoiding interference with the clamping action of the assembly robot 500. Meanwhile, the second feeding mechanism 300 transports the second workpiece to the limiting seat 330 via the second vibrating feeder 320. Industrial camera 110 inspects two workpieces on limit seat 330 and positioning station 240 respectively. Qualified workpieces are simultaneously gripped by the dual grippers 570 of assembly robot 500. If a workpiece is unqualified, the corresponding gripper 570 on assembly robot 500 places the unqualified product in scrap bin 120. Then, the corresponding feeding mechanism continues to transport new workpieces, and the gripper 570 performs the next round of gripping until both products are qualified. Drive mechanism 540 moves sliding seat 530 along horizontal rail 520 to above assembly station 410 of positioning rotary table 400. Lifter 550 descends, one gripper 570 places and fixes the first workpiece on assembly station 410, and the other gripper 570 assembles the second workpiece onto the first workpiece. The positioning rotary table 400 rotates via a rotary cylinder 430, moving the assembled workstation to the unloading position. The unloading robot 610 picks up the assembled material and places it into the glue cylinder 644 of the squirrel cage grid receiving module 640. The drive motor 642 periodically rotates the turntable 643 to replace the empty glue cylinder 644, and the position adjuster 650 adjusts the position of the sliding platform 630 to switch receiving modules. The entire process is highly automated, significantly improving assembly efficiency and product quality.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the appended claims.

Claims

1. A positioning and assembly device for a rat cage grille, characterized in that, include: frame; The first feeding mechanism is mounted on the frame and is used to feed the first workpiece; The second feeding mechanism is installed on the frame and is used to feed the second workpiece; A positioning rotary table is rotatably mounted on the frame, and the positioning rotary table is provided with at least two assembly stations; An assembly robot is mounted on the frame and has two gripping ends. The two gripping ends can respectively grip the first workpiece output by the first feeding mechanism and the second workpiece output by the second feeding mechanism, and sequentially position and fix the first workpiece on the assembly station and assemble the second workpiece on the first workpiece on the assembly station. The unloading mechanism, which is mounted on the frame, is used to unload the assembled products at the assembly station.

2. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, The first feeding mechanism includes a first hopper, a first vibrating feeder connected to the first hopper, and a positioning seat installed on the output end of the first vibrating feeder. The first hopper and the first vibrating feeder are both installed on the frame. The positioning seat is provided with a positioning station. Positioning cylinders are provided on opposite sides of the positioning station. Positioning blocks are provided on the extension and retraction ends of the positioning cylinders. A pair of positioning cylinders can drive the corresponding positioning blocks to cooperate and clamp each other to position the first workpiece at the positioning station. The corresponding clamping end of the assembly robot can clamp the first workpiece at the positioning station.

3. The mouse cage grid positioning and assembly device according to claim 2, characterized in that, A limiting cylinder is installed on the output end of the first vibrating feeder. The limiting cylinder extends and retracts along the conveying direction of the first vibrating feeder. A limiting plate is provided on the extension end of the limiting cylinder. The limiting cylinder can drive the limiting plate to extend above the positioning station to limit the first workpiece on the positioning station.

4. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, The second feeding mechanism includes a second hopper, a second vibrating feeder connected to the output end of the second hopper, and a limiting seat installed on the output end of the second vibrating feeder. Both the second hopper and the second vibrating feeder are installed on the frame, and the corresponding clamping end of the assembly robot can clamp the second workpiece on the limiting seat.

5. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, The assembly robot includes a frame mounted on the machine frame, a horizontal rail mounted on the frame, a sliding seat slidably mounted on the horizontal rail, and a drive mechanism mounted on the frame. The drive mechanism drives the sliding seat to slide on the horizontal rail. A lifter is provided on the sliding seat, and a mounting frame is mounted on the lifter. A pair of grippers are provided on the mounting frame. The pair of grippers can respectively grip the first workpiece output by the first feeding mechanism and the second workpiece output by the second feeding mechanism. When the drive mechanism drives the two grippers to move above the assembly station, one gripper positions and fixes the first workpiece on the assembly station, and the other gripper assembles the second workpiece onto the first workpiece on the assembly station.

6. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, The positioning rotary table includes a bracket, a rotary cylinder mounted on the bracket, and a rotary seat mounted on the rotating end of the rotary cylinder. The bracket is mounted on the frame, and the rotary seat is provided with at least two assembly stations. One clamping end of the assembly robot can transfer the first workpiece output by the first feeding mechanism to the assembly station, and the other clamping end can assemble the second workpiece output by the second feeding mechanism onto the first workpiece at the assembly station.

7. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, Industrial cameras are installed on the frame in the corresponding areas at the output ends of the first and second feeding mechanisms.

8. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, Waste bins are provided on one side of the output end of the first feeding mechanism and the output end of the second feeding mechanism on the frame.

9. The mouse cage grid positioning and assembly device according to claim 1, characterized in that, The unloading mechanism includes an unloading robot, a sliding guide rail, a sliding platform slidably mounted on the sliding guide rail, and at least two squirrel cage grid receiving modules mounted on the sliding platform with rotatable turntables. The unloading robot and the sliding guide rail are both mounted on the frame. The unloading robot can unload the assembled products on the positioning rotary table into the squirrel cage grid receiving modules. The frame is provided with a position adjuster for driving the sliding platform to slide on the sliding guide rail.

10. The mouse cage grid positioning and assembly device according to claim 9, characterized in that, Each of the aforementioned squirrel cage grid receiving modules includes a base, a drive motor, a turntable, and several rubber cylinders disposed on the turntable. The rubber cylinders are capable of receiving products held by the unloading robot. The base is mounted on a sliding platform, and the turntable is rotatably mounted on the base. The rotating end of the drive motor is connected to the rotation center of the turntable.

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