Multi-station lifting and swinging indexing turntable mechanism

Abstract

The invention relates to the field of packaging and transporting equipment, in particular to a multi-station lifting swing indexing turntable mechanism which comprises a cam box set, a turntable set is arranged at the top of the cam box set in a rotating and lifting mode, the cam box set comprises a box set, and a lifting mechanism set for driving the turntable set to rotate and lift is vertically arranged in the box set. A lower swing mechanism set used for driving the lifting mechanism set to rotate is arranged on one side of the lifting mechanism set and located at the bottom of the box set, and the lower swing mechanism set is driven by a single motor and synchronously and coordinately outputs three kinds of composite motion of lifting, swing and indexing through a highly-integrated cam box set internal transmission chain. The swing turret is synchronously driven to rotate and the rocker arm is synchronously driven to swing through the first guide wheel groove and the roller guide groove in the single lifting swing cam, then lifting of the output shaft is converted, absolute synchronization and high precision of lifting and rotating actions are guaranteed through mechanical forced linkage, zero back clearance is achieved through prepressing of the cams and the rollers, transmission is stable, and the service life is long.

Description

Technical Field

[0001] This invention relates to the field of packaging and transportation equipment technology, and in particular to a multi-station lifting, swinging, indexing turntable mechanism. Background Technology

[0002] In automated assembly, packaging, and sorting, multi-station turntable mechanisms are core components for achieving process flow and positioning. For complex processes requiring simultaneous lifting, swaying, and indexing (rotary positioning) actions, a common approach is to use multiple servo motors to drive gear, rack, or worm gear mechanisms to achieve lifting and rotation, supplemented by cylinders to achieve swaying. This approach has significant drawbacks: First, gear transmission inevitably introduces assembly gaps, and the motors require frequent forward and reverse rotations to adapt to the cyclic action, resulting in severe backlash in the transmission system and making it difficult to guarantee positioning accuracy. Second, cylinders have slow operating speeds and response delays, relying on sensor feedback for cycle control, leading to low overall cyclic efficiency. Furthermore, multiple independent drive systems are complex to control, occupy large spaces, and have poor coordination accuracy. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-station lifting and swinging indexing turntable mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station lifting and swinging indexing turntable mechanism includes a cam box assembly. A turntable assembly is rotatably and vertically mounted on the top of the cam box assembly. The cam box assembly includes a box body assembly. Inside the box body assembly, a lifting mechanism assembly is vertically mounted to drive the turntable assembly to rotate and move. A lower swinging mechanism assembly is mounted on one side of the lifting mechanism assembly and at the bottom of the box body assembly to drive the lifting mechanism assembly to rotate. An upper indexing mechanism assembly is mounted above the lower swinging mechanism assembly to drive the indexing turntable to rotate. The lower swinging mechanism assembly is driven to the upper indexing mechanism assembly through a pulley assembly on one side of the box body assembly. The lifting mechanism assembly includes an output shaft vertically mounted on the lower swing mechanism assembly. The bottom of the output shaft body is vertically mounted on the swing turret. An indexing turret is provided at the top of the output shaft body. The indexing turret drives the indexing plate connected to the top to rotate by contacting the indexing cam on one side with multiple second turret rollers rotatably mounted on the top outer wall. A transmission wheel for lifting is provided at the bottom of the output shaft body. The lower swing mechanism assembly includes a turret base located at the bottom of the housing assembly. A swing turret for mounting the output shaft is rotatably mounted on the turret base. The swing turret drives the output shaft to rotate by contacting a lifting swing cam rotatably mounted on one side through multiple first turret rollers rotatably mounted on the top outer wall. When the lifting and swinging cam rotates, it drives the rocker arm, which is rolled and fitted with roller guide grooves on both sides, to swing up and down. One end of the rocker arm is equipped with a transmission wheel roller located at the transmission wheel. The transmission wheel roller drives the transmission wheel to rise and fall, thereby realizing the synchronous lifting and lowering of the telescopic disc assembly above the indexing plate.

[0005] In addition, the preferred structure is that the box assembly includes a box, a lower box cover is provided on one side of the box, the lifting and swinging cam is rotatably mounted on the box and the lower box cover through the first tapered roller bearings on the first eccentric sleeves at both ends of the lifting and swinging cam shaft, and a motor seat for mounting a motor and a reducer is provided on the outer wall of the lower box cover. The motor is connected to the lifting and swinging cam shaft through the reducer to drive the lifting and swinging cam to rotate. A viewing window cover is provided on one side of the motor base, and an upper cover is installed on the top of the housing. A second eccentric sleeve for installing the indexing cam shaft core is provided on the plates on both sides of the upper cover of the housing. A sensor bracket is provided on the top of the box panel, on the side where the second eccentric sleeve is installed. A sensor switch is installed on the sensor bracket. A pointer scale ring is provided on the other side of the box panel, on the surface of the other side of the opening.

[0006] In addition, a preferred structure is that a VK end cover is installed on the bottom plate of the housing and below the turret base, and a self-lubricating bearing for the rotational engagement of the output shaft is provided on the top of the housing. A first TC oil seal and a second TC oil seal are sequentially assembled above the self-lubricating bearing.

[0007] In addition, the preferred structure is that the first eccentric sleeve is installed on the housing and the lower housing cover by the first adjusting nut, the shaft of the lifting and swinging camshaft connected to the reducer is provided with a positioning key, the other end of the lifting and swinging camshaft away from the positioning key is connected to the pulley group, and the lifting and swinging cam is provided with a first guide wheel groove for switching the first turret roller. The turret base is fixed to the bottom of the housing with screws, the swing turret is installed on the turret base by the first locking nut at the bottom, and the swing turret rotates by the second tapered roller bearing at the top of the turret base.

[0008] In addition, in a preferred structure, the end of the rocker arm away from the transmission wheel roller is rotatably mounted on the housing and the lower cover via a rocker arm fixing seat. The rocker arm fixing seat is rotatably connected to the rocker arm via a rocker arm shaft. The rocker arm rotates via a needle roller bearing at the connection point with the rocker arm fixing seat and thrust bearings on both sides. A first anti-loosening nut is provided on one side of the rocker arm roller. The transmission wheel is mounted on the bottom of the output shaft body via a second locking nut at the bottom, and the output shaft is vertically mounted at the center of the swing turret via a square shaft at the bottom.

[0009] In addition, a preferred structure is that the pulley group includes a drive wheel rotatably disposed on the outer wall of the housing and connected to the lifting and swinging camshaft, a driven wheel rotatably disposed above the drive wheel and connected to the indexing camshaft core, the drive wheel and the driven wheel being rotatably disposed on the housing through an expansion sleeve, and a belt being sleeved on the outside of the drive wheel and the driven wheel; An idler wheel seat is located diagonally above the drive wheel in the housing. An idler wheel that contacts the belt is rotatably mounted on the idler wheel seat via an idler wheel cover. An adjustment block is connected to one side of the idler wheel seat via an adjustment screw.

[0010] In addition, in a preferred structure, the second eccentric sleeve is mounted on the housing by the second adjusting nut, and an origin pointer is provided at the end of the indexing cam shaft away from the shaft connected to the driven wheel. The origin pointer points to a pointer scale ring on one side, and a sensing block is provided on the side of the origin pointer away from the driven wheel. The indexing cam shaft is mounted on a third tapered roller bearing at the center of the second eccentric sleeve. The indexing cam has a second guide wheel groove for restricting the movement of the second turret roller. The indexing turret is connected to the indexing plate. A fourth tapered roller bearing is mounted at the center of the upper surface of the indexing turret. A bearing cap is mounted on the fourth tapered roller bearing. A third TC oil seal is mounted between the bearing cap and the indexing turret.

[0011] In addition, the preferred structure is that the turntable assembly includes an indexing plate, a guide seat, a guide bearing, a telescopic disc assembly, and a disc cam assembly. The guide seat is connected to the top of the bearing cover, and multiple guide bearings are evenly arranged on the guide seat. The telescopic disc assembly is vertically slidably fitted at the guide bearing, and the disc cam assembly is installed on the top of the output shaft. The telescopic disc assembly includes a guide rail fixing disc, with multiple guide rails evenly arranged on the upper surface of the guide rail fixing disc, a slider slidingly fitted on the guide rail, a slider connecting plate slidingly fitted on the slider, and a fifth tapered roller bearing rotatably fitted on the top of the output shaft body at the center of the guide rail fixing disc. The upper surface of the slider connecting plate near the fifth tapered roller bearing is rotatably equipped with CF bearings, which are rolled and fitted on the disc cam assembly. The end of the slider connecting plate away from the CF bearing is equipped with a gripper for clamping materials. Multiple guide rods are evenly arranged vertically on the guide rail fixing plate through the second anti-loosening nut. The guide rods are located at the bottom of the guide rail fixing plate and are vertically slidably fitted at the guide bearing.

[0012] Furthermore, in a preferred configuration, the disc cam assembly includes a disc cam, which is mounted on the top of the output shaft body via a clamping ring at the center and a washer at the bottom. A clamping ring cover is provided on the clamping ring. Multiple limiting grooves are evenly arranged and opened through the disc cam on the outer periphery of the clamping ring. CF bearings are rolled and fitted at the limiting grooves. The CF bearings push the slider connecting plate to move by rotating the disc cams.

[0013] The beneficial effects of this invention are as follows: 1. Driven by a single motor, the system outputs three composite motions—lifting, swaying, and indexing—synchronously and in a coordinated manner through a highly integrated cam box assembly internal transmission chain. The first guide wheel groove and roller guide groove on a single lifting and swaying cam synchronously drive the swaying turret to rotate and the rocker arm to swing, which is then converted into the lifting of the output shaft. This mechanical forced linkage ensures absolute synchronization and high precision of the lifting and rotation actions. Furthermore, the cam and roller can be preloaded to achieve zero backlash, resulting in smooth transmission and a long service life.

[0014] 2. The indexing cam is synchronously driven by the pulley group at a speed ratio of 1:1, so that the indexing motion and the lifting and swinging motion are of the same origin, in the same direction and at the same speed. From the mechanical source, this ensures the consistency of the positioning of the indexing plate and the timing of the spindle movement at high speed, and solves the problem of multi-system coordination error.

[0015] 3. The entire transmission system is housed within a robust, integrated housing, forming a closed, rigid frame that significantly improves the overall stability and torsional resistance of the mechanism, providing a foundation for high-precision motion. The lifting mechanism employs a double-rocker arm design, supported by an integrated lifting swing cam, ensuring uniform force distribution and enabling the smooth lifting of heavier materials, thus expanding the equipment's application range.

[0016] 4. When the disc cam fixed to the output shaft rotates, the limit slide drives each CF bearing on the telescopic disc assembly, causing multiple grippers to extend and retract radially independently. This structure enables each station to automatically perform gripping and releasing, and coordinates automatically with the rotary table indexing and lifting, greatly expanding the application scenarios. Furthermore, multiple grippers enable gripping and transportation across multiple stations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure after the turntable assembly and cam box assembly are separated. Figure 2 This is a schematic diagram of the overall structure of the turntable mechanism; Figure 3 This is a schematic diagram of the turntable assembly. Figure 4 This is a schematic diagram of the cam box assembly. Figure 5 This is a schematic diagram of the disassembled cam box assembly; Figure 6 This is a structural diagram of the lower swing mechanism group, the lifting mechanism group, and the upper indexing mechanism group in their working states. Figure 7 This is a structural diagram of the housing assembly without a motor and reducer installed. Figure 8 This is a structural diagram showing the installation location of the pulley assembly; Figure 9 This is a schematic diagram of the turntable assembly. Figure 10 This is a structural schematic diagram of the box assembly; Figure 11 This is a schematic diagram of the internal structure of the box; Figure 12 This is a schematic diagram of the structure after the lower swing mechanism group, the lifting mechanism group, and the upper indexing mechanism group are disassembled; Figure 13 A partial sectional view of the lower swing mechanism assembly, the lifting mechanism assembly, and the upper indexing mechanism assembly; Figure 14 This is a schematic diagram of the lower swing mechanism assembly; Figure 15 This is a cross-sectional view of the swaying turret. Figure 16 This is a structural schematic diagram of the lifting mechanism assembly; Figure 17 This is a cross-sectional view of the rocker arm; Figure 18 This is a schematic diagram of the pulley assembly. Figure 19 This is a schematic diagram of the upper indexing mechanism; Figure 20 This is a schematic diagram of the indexing turret structure; Figure 21 This is a schematic diagram of the structure after the telescopic disc assembly and the disc cam assembly are separated. Figure 22 This is a schematic diagram of the telescopic disc assembly and guide seat after disassembly. Figure 23 This is a schematic diagram of the telescopic disc assembly; Figure 24 This is a schematic diagram of the structure of the disc cam assembly; Figure 25 This is a sectional view of the disc cam assembly.

[0018] In the diagram: 1. Motor; 2. Reducer; 3. Cam box assembly; 31. Housing assembly; 32. Lower swing mechanism assembly; 33. Lifting mechanism assembly; 34. Pulley assembly; 35. Upper indexing mechanism assembly; 3101. Housing; 3102. Lower housing cover; 3103. Viewing window cover; 3104. Motor mount; 3105. Upper housing cover; 3106. Induction bracket; 3107. Induction switch; 3108. Pointer scale ring; 3109. VK end cap; 3110. Self-lubricating bearing; 3111. First TC oil seal; 3112. Second TC oil seal; 3201. Lifting and swinging camshaft; 3202. Positioning key; 3203. First eccentricity. Set; 3204, First adjusting nut; 3205, First tapered roller bearing; 3206, Lifting rocker cam; 32061, First guide wheel groove; 32062, Roller guide groove; 3207, Rocker turret; 3208, First turret roller; 3209, Second tapered roller bearing; 3210, First locking nut; 3211, Turret base; 3301, Rocker arm fixing seat; 3302, Thrust bearing; 3303, Needle roller bearing; 3304, Rocker arm shaft; 3305, Rocker arm; 3306, Rocker arm roller; 3307, First anti-loosening nut; 3308, Drive wheel roller; 3309, Output shaft; 331 0. Drive wheel; 3311. Second locking nut; 3401. Drive wheel; 3402. Driven wheel; 3403. Expansion sleeve; 3404. Belt; 3405. Idler wheel; 3406. Idler wheel seat; 3407. Idler wheel cover; 3408. Adjusting block; 3409. Adjusting screw; 3501. Indexing cam shaft; 3502. Sensing block; 3503. Origin pointer; 3504. Second eccentric sleeve; 3505. Second adjusting nut; 3506. Third tapered roller bearing; 3507. Indexing cam; 35071. Second guide wheel groove; 3508. Indexing turret; 3509. Second turret roller; 3510. 4. Fourth tapered roller bearing; 3511. Bearing cover; 3512. Third TC oil seal; 4. Turntable assembly; 41. Indexing plate; 42. Guide seat; 43. Guide bearing; 44. Telescopic disc assembly; 4401. Guide rail fixing disc; 4402. Guide rail; 4403. Slider; 4404. Slider connecting plate; 4405. CF bearing; 4406. Gripper; 4407. Guide rod; 4408. Second anti-loosening nut; 4409. Fifth tapered roller bearing; 45. Disc cam assembly; 4501. Disc cam; 45011. Limiting groove; 4502. Washer; 4503. Clamping ring; 4504. Clamping ring cover. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-25 A multi-position lifting and swinging indexing turntable mechanism includes a cam box assembly 3. A turntable assembly 4 is mounted on the top of the cam box assembly 3, rotating and lifting simultaneously. The cam box assembly 3 includes a housing assembly 31. Inside the housing assembly 31, a lifting mechanism assembly 33 is vertically arranged to drive the rotation and lifting of the turntable assembly 4. A lower swinging mechanism assembly 32 is located on one side of the lifting mechanism assembly 33 and at the bottom of the housing assembly 31, for driving the rotation of the lifting mechanism assembly 33. Above the lower swinging mechanism assembly 32, an upper indexing mechanism assembly 35 is arranged to drive the rotation of the indexing plate 41. The lower swinging mechanism assembly 32 is connected to the upper indexing mechanism assembly 35 via a pulley assembly 34 on one side of the housing assembly 31. Group 33 includes an output shaft 3309 vertically mounted on the lower swing mechanism group 32. The bottom of the output shaft 3309 is vertically mounted on the swing turret 3207. The top of the output shaft 3309 is provided with an indexing turret 3508. The indexing turret 3508 drives the indexing plate 41 connected to the top to rotate by contacting the indexing cam 3507 on one side with multiple second turret rollers 3509 rotatably arranged on the top outer wall. The bottom of the output shaft 3309 is provided with a transmission wheel 3310 for lifting and lowering. The rotation and lifting of the output shaft 3309 are synchronized through the lower swing mechanism group 32 and the upper indexing mechanism group 35.

[0021] Furthermore, the lower swing mechanism assembly 32 includes a turret base 3211 located at the bottom of the housing assembly 31. A swing turret 3207 for mounting the output shaft 3309 is rotatably mounted on the turret base 3211. The swing turret 3207 drives the output shaft 3309 to rotate by contacting a lifting swing cam 3206 rotatably mounted on one side through multiple first turret rollers 3208 rotatably mounted on the top outer wall. When the lifting swing cam 3206 rotates, it drives the rocker arm 3305, which is rolled and engaged at the roller guide grooves 32062 on both sides, to swing up and down. A transmission wheel roller 3308 located at the transmission wheel 3310 is rotatably mounted at one end of the rocker arm 3305. The transmission wheel roller 3308 drives the transmission wheel 3310 to rise and fall, thereby realizing the synchronous lifting and lowering of the telescopic disc assembly 44 above the indexing plate 41.

[0022] The housing assembly 31 includes a housing 3101, with a lower cover 3102 on one side of the housing 3101. The lifting and swinging cam 3206 is rotatably mounted on the housing 3101 and the lower cover 3102 via the first tapered roller bearings 3205 on the first eccentric sleeves 3203 at both ends of the lifting and swinging cam shaft 3201. The outer wall of the lower cover 3102 is provided with a motor seat 3104 for mounting the motor 1 and the reducer 2. The motor 1 drives the lifting and swinging cam 3206 to rotate via the reducer 2 connected to the lifting and swinging cam shaft 3201. The two movements of rotation and lifting can be achieved by only one motor 1.

[0023] Furthermore, a viewing window cover 3103 is provided on one side of the motor mount 3104, and an upper cover 3105 is installed on the top of the housing 3101. A second eccentric sleeve 3504 for installing the indexing camshaft core 3501 is provided on the plates on both sides of the upper cover 3105 of the housing 3101. A sensor bracket 3106 is provided on the top of the housing 3101 plate on the side where the second eccentric sleeve 3504 is installed. A sensor switch 3107 is installed on the sensor bracket 3106. A pointer scale ring 3108 is provided on the other side of the housing 3101 plate on the surface of this opening.

[0024] Meanwhile, a VK end cap 3109 is installed on the bottom plate of the housing 3101 and below the turret base 3211. A self-lubricating bearing 3110 for rotational engagement of the output shaft 3309 is provided on the top of the housing 3101. A first TC oil seal 3111 and a second TC oil seal 3112 are sequentially mounted above the self-lubricating bearing 3110. The first TC oil seal 3111 and the second TC oil seal 3112 are used to improve the sealing performance.

[0025] Furthermore, the first eccentric sleeve 3203 is installed on the housing 3101 and the lower housing cover 3102 via the first adjusting nut 3204. The shaft of the lifting and swinging camshaft 3201 connected to the reducer 2 is provided with a positioning key 3202. The other end of the lifting and swinging camshaft 3201 away from the positioning key 3202 is connected to the pulley group 34. The lifting and swinging cam 3206 is provided with a first guide wheel groove 32061 for switching the first turret roller 3208. The first guide wheel groove 32061 is used to switch the first turret roller 3208, thereby driving the swinging turret 3207 to rotate.

[0026] Meanwhile, the turret base 3211 is fixed to the bottom of the housing 3101 by screws, and the swing turret 3207 is installed on the turret base 3211 by the first locking nut 3210 at the bottom. The swing turret 3207 rotates through the second tapered roller bearing 3209 at the top of the turret base 3211. The first locking nut 3210 engages with the thread on the swing turret 3207, so that the swing turret 3207 can only rotate on the turret base 3211.

[0027] In addition, the end of the rocker arm 3305 away from the transmission wheel roller 3308 is rotatably mounted on the housing 3101 and the lower cover 3102 via the rocker arm fixing seat 3301. The rocker arm fixing seat 3301 is rotatably connected to the rocker arm 3305 via the rocker arm shaft core 3304. The rocker arm 3305 rotates via the needle roller bearing 3303 at the connection with the rocker arm fixing seat 3301 and the thrust bearings 3302 on both sides. A first anti-loosening nut 3307 is provided on one side of the rocker arm roller 3306 on the rocker arm 3305. The transmission wheel 3310 is mounted on the bottom of the output shaft 3309 via the second locking nut 3311 at the bottom. The output shaft 3309 is vertically mounted at the center of the swing turret 3207 via the bottom square shaft. The swing turret 3207 realizes the rotation of the output shaft 3309, and the output shaft 3309 is inserted into the swing turret 3207 and can move up and down.

[0028] The pulley assembly 34 includes a drive wheel 3401 rotatably mounted on the outer wall of the housing 3101 and connected to the lifting and swinging camshaft 3201. A driven wheel 3402 rotatably mounted above the drive wheel 3401 and connected to the indexing camshaft core 3501 is also rotatably mounted on the housing 3101 via a sleeve 3403. A belt 3404 is fitted around the drive wheel 3401 and the driven wheel 3402. The drive wheel 3401 is driven by the lifting and swinging camshaft 3201 to rotate via the motor 1, and the driven wheel 3402 is rotated in conjunction with the belt 3404.

[0029] In addition, an idler gear seat 3406 is located diagonally above the drive pulley 3401 in the housing 3101. An idler gear 3405, which contacts the belt 3404, is rotatably mounted on the idler gear seat 3406 via an idler gear cover 3407. An adjusting block 3408 is connected to one side of the idler gear seat 3406 via an adjusting screw 3409. The idler gear 3405 is mainly used to change the belt direction, increase the wrap angle between the belt and the pulley, reduce belt vibration, prevent belt slippage, and assist in belt tensioning. Meanwhile, the second eccentric sleeve 3504 is mounted on the housing 3101 via the second adjusting nut 3505. A home pointer 3503 is provided at the end of the indexing cam shaft core 3501 away from the shaft connecting the driven wheel 3402. The home pointer 3503 points to a pointer scale ring 3108 on one side. A sensing block 3502 is provided on the side of the home pointer 3503 away from the driven wheel 3402. The indexing cam shaft core 3501 is mounted on a third tapered roller bearing 3506 at the center of the second eccentric sleeve 3504. The indexing cam 3507 has a second guide wheel groove 35071 for restricting the movement of the second turret roller 3509. The indexing turret 3508 is connected to the indexing plate 41. A fourth tapered roller bearing 3510 is provided at the center of the upper surface of the indexing turret 3508. A bearing cover 3511 is provided on the fourth tapered roller bearing 3510. A third TC oil seal 3512 is provided between the bearing cover 3511 and the indexing turret 3508. The indexing turret 3508 is used to realize the rotation of the indexing plate 41.

[0030] In addition, the turntable assembly 4 includes an indexing plate 41, a guide seat 42, a guide bearing 43, a telescopic disc assembly 44, and a disc cam assembly 45. The guide seat 42 is connected to the top of the bearing cover 3511. Multiple guide bearings 43 are evenly arranged on the guide seat 42. The telescopic disc assembly 44 is vertically slidably fitted at the guide bearings 43. The disc cam assembly 45 is installed on the top of the output shaft 3309. The output shaft 3309 is used to lift the telescopic disc assembly 44.

[0031] Meanwhile, the telescopic disc assembly 44 includes a guide rail fixing disc 4401. Multiple guide rails 4402 are evenly arranged on the upper surface of the guide rail fixing disc 4401. A slider 4403 is slidably fitted on the guide rail 4402. A slider connecting plate 4404 is slidably fitted on the slider 4403. A fifth tapered roller bearing 4409 is rotatably fitted on the top of the output shaft 3309 at the center of the guide rail fixing disc 4401. CF bearings 4405 are rotatably fitted on the upper surface of the slider connecting plate 4404 near the fifth tapered roller bearing 4409. The CF bearings 4405 are rollingly fitted on the disc cam assembly 45. The multiple slider connecting plates 4404 enable multi-station transport and packaging.

[0032] In addition, the end of the slider connecting plate 4404 away from the CF bearing 4405 is provided with a gripper 4406 for gripping materials. Multiple guide rods 4407 are evenly arranged and vertically installed on the guide rail fixing plate 4401 by means of a second anti-loosening nut 4408. The guide rods 4407 are located at the bottom of the guide rail fixing plate 4401 and are vertically slidably engaged with the guide bearing 43. The guide rods 4407 restrict the vertical movement of the guide rail fixing plate 4401.

[0033] The disc cam assembly 45 includes a disc cam 4501, which is mounted on the top of the output shaft 3309 via a clamping ring 4503 at the center and a washer 4502 at the bottom. A clamping ring cover 4504 is provided on the clamping ring 4503. The disc cam 4501 is located on the outer periphery of the clamping ring 4503 and has multiple limiting grooves 45011 that are evenly arranged and pass through it. The CF bearing 4405 is rolled in the limiting groove 45011. The CF bearing 4405 pushes the slider connecting plate 4404 to move by rotating the disc cam 4501.

[0034] In this embodiment, when the indexing turntable mechanism is packaging materials transported at multiple stations, the rotation of motor 1 realizes the rotation of the lifting swing cam 3206 and the drive wheel 3401. When the lifting swing cam 3206 rotates, it will drive the first turret roller 3208 to realize the swing turret 3207 and the output shaft 3309 to rotate and swing. The first guide wheel groove 32061 on the lifting swing cam 3206 contacts the rocker arm roller 3306, and the transmission wheel roller 3308 on the rocker arm 3305 contacts the transmission wheel 3310.

[0035] When the lifting rocker cam 3206 rotates, the rocker arm roller 3306, which is located in the roller guide groove 32062, changes with the roller guide groove 32062, thereby causing the rocker arm roller 3306 to drive the rocker arm 3305 to rise as the rocker arm fixed seat 3301 rotates. The transmission wheel roller 3308 pushes the transmission wheel 3310 to rise and fall, thereby realizing that the output shaft 3309 drives the top telescopic disc assembly 44 to rise and fall.

[0036] When the drive wheel 3401 rotates, it drives the driven wheel 3402 and the indexing cam 3507 to rotate in the same direction through the transmission of the belt 3404. When the indexing cam 3507 rotates, different second turret rollers 3509 are switched as the second guide wheel groove 35071 rotates, thereby realizing the indexing turret 3508 and the top indexing plate 41 to perform indexing rotation.

[0037] By cooperating with the guide rod 4407 and the guide bearing 43, when the output shaft 3309 rises and rotates, the disc cam 4501 moves completely synchronously, but the guide rail fixed plate (4401) only moves synchronously up and down and does not rotate.

[0038] When the output shaft 3309 drives the disc cam 4501 to rotate, the limiting slide groove 45011 drives the CF bearing 4405, which in turn causes the CF bearing 4405 to drive the slider connecting plate 4404 to cooperate with the bottom slider 4403 to move on the guide rail 4402, thereby realizing the displacement of the gripper 4406, which is convenient for transporting materials during packaging.

[0039] In this invention, a single motor 1 drives a highly integrated cam box assembly 3 through its internal transmission chain to synchronously and coordinately output three composite motions: lifting, oscillation, and indexing. Through the first guide wheel groove 32061 and roller guide groove 32062 on a single lifting and oscillating cam 3206, the oscillating turret 3207 rotates and the rocker arm 3305 oscillates, which is then converted into the lifting and lowering of the output shaft 3309. This mechanical forced linkage ensures absolute synchronization and high precision of the lifting and rotating actions, and the cam and roller can be preloaded to achieve zero backlash, resulting in smooth transmission and a long service life.

[0040] The indexing cam 3507 is synchronously driven by the pulley group 34 at a speed ratio of 1:1, so that the indexing motion and the lifting and swinging motion are of the same origin, in the same direction and at the same speed. From the mechanical source, this ensures the consistency of the positioning of the indexing plate 41 and the timing of the spindle action at high speed, and solves the problem of multi-system coordination error.

[0041] The entire transmission system is housed within a robust, integrated housing 31, forming a closed, rigid frame that significantly improves the overall stability and torsional resistance of the mechanism, providing a foundation for high-precision motion. The lifting mechanism 33 employs a double rocker arm design 3305, supported by an integrated lifting swing cam 3206, ensuring uniform force distribution and enabling the smooth lifting of heavier materials, thus expanding the equipment's application range.

[0042] When the disc cam 4501, fixed to the output shaft 3309, rotates, the limiting slide groove 45011 drives each CF bearing 4405 on the telescopic disc assembly 44, causing multiple grippers 4406 to independently extend and retract radially. This structure enables each station to automatically perform gripping and releasing, and coordinates automatically with the rotary table indexing and lifting, greatly expanding the application scenarios. Furthermore, multiple grippers 4406 enable multi-station gripping and transportation.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-position lifting and swinging indexing turntable mechanism, comprising a cam box assembly (3), characterized in that, The cam box assembly (3) has a turntable assembly (4) that rotates and lifts at the top. The cam box assembly (3) includes a box assembly (31). Inside the box assembly (31), there is a vertically arranged lifting mechanism assembly (33) that drives the turntable assembly (4) to rotate and lift. On one side of the lifting mechanism assembly (33) and at the bottom of the box assembly (31), there is a lower swing mechanism assembly (32) for driving the lifting mechanism assembly (33) to rotate. Above the lower swing mechanism assembly (32), there is an upper indexing mechanism assembly (35) for driving the indexing plate (41) to rotate. The lower swing mechanism assembly (32) is connected to the upper indexing mechanism assembly (35) through a pulley assembly (34) on one side of the box assembly (31). The lifting mechanism assembly (33) includes an output shaft (3309) vertically mounted on the lower swing mechanism assembly (32). The bottom of the output shaft (3309) is vertically mounted on the swing turret (3207). The top of the output shaft (3309) is provided with an indexing turret (3508). The indexing turret (3508) drives the indexing plate (41) connected to the top to rotate by contacting the indexing cam (3507) on one side through multiple second turret rollers (3509) rotatably arranged at the top outer wall. The bottom of the output shaft (3309) is provided with a transmission wheel (3310) for lifting. The lower swing mechanism assembly (32) includes a turret base (3211) disposed at the bottom of the housing assembly (31). A swing turret (3207) for mounting the output shaft (3309) is rotatably disposed on the turret base (3211). The swing turret (3207) drives the output shaft (3309) to rotate by contacting a lifting swing cam (3206) rotatably disposed on one side through a plurality of first turret rollers (3208) rotatably disposed on the top outer wall. When the lifting and swinging cam (3206) rotates, it drives the rocker arm (3305) which is rolled in the roller guide groove (32062) on both sides to swing up and down. One end of the rocker arm (3305) is rotatably provided with a transmission wheel roller (3308) located at the transmission wheel (3310). The transmission wheel roller (3308) drives the transmission wheel (3310) to rise and fall, so as to realize the synchronous lifting and lowering of the telescopic disc assembly (44) above the indexing plate (41).

2. The multi-station lifting and swinging indexing turntable mechanism according to claim 1, characterized in that, The housing assembly (31) includes a housing (3101), a lower housing cover (3102) is provided on one side of the housing (3101), and a lifting swing cam (3206) is rotatably mounted on the housing (3101) and the lower housing cover (3102) via the first tapered roller bearings (3205) on the first eccentric sleeves (3203) at both ends of the lifting swing cam shaft (3201). A motor seat (3104) for mounting a motor (1) and a reducer (2) is provided on the outer wall of the lower housing cover (3102). The motor (1) is connected to the lifting swing cam shaft (3201) through the reducer (2) to drive the lifting swing cam (3206) to rotate. A viewing window cover (3103) is provided on one side of the motor base (3104), and an upper cover (3105) is installed on the top of the housing (3101). A second eccentric sleeve (3504) for installing the indexing cam shaft core (3501) is provided on the plates on both sides of the upper cover (3105) of the housing (3101). A sensor bracket (3106) is provided on the top of the box body (3101) on the side where the second eccentric sleeve (3504) is installed. A sensor switch (3107) is installed on the sensor bracket (3106). A pointer scale ring (3108) is provided on the other side of the box body (3101) on the surface of this opening.

3. The multi-station lifting and swinging indexing turntable mechanism according to claim 2, characterized in that, The bottom plate of the housing (3101) is equipped with a VK end cap (3109) located below the turret base (3211). The top of the housing (3101) is provided with a self-lubricating bearing (3110) for the rotational engagement of the output shaft (3309). The first TC oil seal (3111) and the second TC oil seal (3112) are sequentially mounted above the self-lubricating bearing (3110).

4. The multi-station lifting and swinging indexing turntable mechanism according to claim 2, characterized in that, The first eccentric sleeve (3203) is installed on the housing (3101) and the lower housing cover (3102) by the first adjusting nut (3204). The lifting and swinging camshaft (3201) is connected to the reducer (2) by a positioning key (3202). The other end of the lifting and swinging camshaft (3201) away from the positioning key (3202) is connected to the pulley group (34). The lifting and swinging cam (3206) is provided with a first guide wheel groove (32061) for switching the first turret roller (3208). The turret base (3211) is fixed to the bottom of the housing (3101) by screws. The swing turret (3207) is installed on the turret base (3211) by the first locking nut (3210) at the bottom. The swing turret (3207) rotates through the second tapered roller bearing (3209) at the top of the turret base (3211).

5. The multi-station lifting and swinging indexing turntable mechanism according to claim 1, characterized in that, The rocker arm (3305) is rotatably mounted on the housing (3101) and the lower cover (3102) via a rocker arm fixing seat (3301) at one end away from the transmission wheel roller (3308). The rocker arm fixing seat (3301) is rotatably connected to the rocker arm (3305) via the rocker arm shaft (3304). The rocker arm (3305) rotates via a needle roller bearing (3303) at the connection with the rocker arm fixing seat (3301) and thrust bearings (3302) on both sides. A first anti-loosening nut (3307) is provided on one side of the rocker arm roller (3306) on the rocker arm (3305). The transmission wheel (3310) is installed at the bottom of the output shaft (3309) via the second locking nut (3311) at the bottom, and the output shaft (3309) is vertically installed at the center of the swing turret (3207) via the square shaft at the bottom.

6. The multi-station lifting and swinging indexing turntable mechanism according to claim 1, characterized in that, The pulley assembly (34) includes a drive wheel (3401) rotatably disposed on the outer wall of the housing (3101) and connected to the lifting and swinging camshaft (3201). A driven wheel (3402) rotatably disposed above the drive wheel (3401) and connected to the indexing camshaft core (3501). The drive wheel (3401) and the driven wheel (3402) are rotatably disposed on the housing (3101) through an expansion sleeve (3403). A belt (3404) is sleeved on the outside of the drive wheel (3401) and the driven wheel (3402). The housing (3101) is provided with an idler wheel seat (3406) located diagonally above the drive wheel (3401). An idler wheel (3405) is rotatably mounted on the idler wheel seat (3406) and contacts the belt (3404) via an idler wheel cover (3407). An adjusting block (3408) is connected to one side of the idler wheel seat (3406) via an adjusting screw (3409).

7. A multi-station lifting and swinging indexing turntable mechanism according to claim 2, characterized in that, The second eccentric sleeve (3504) is mounted on the housing (3101) by the second adjusting nut (3505). The indexing cam shaft core (3501) is provided with an origin pointer (3503) at the end of the shaft away from the driven wheel (3402). The origin pointer (3503) points to the pointer scale ring (3108) on one side. A sensing block (3502) is provided on the side of the origin pointer (3503) away from the driven wheel (3402). The indexing cam shaft core (3501) is mounted on the third tapered roller bearing (3506) at the center of the second eccentric sleeve (3504). The indexing cam (3507) has a second guide wheel groove (35071) for restricting the movement of the second turret roller (3509). The indexing turret (3508) is connected to the indexing plate (41). A fourth tapered roller bearing (3510) is mounted at the center of the upper surface of the indexing turret (3508). A bearing cap (3511) is mounted on the fourth tapered roller bearing (3510). A third TC oil seal (3512) is mounted between the bearing cap (3511) and the indexing turret (3508).

8. A multi-station lifting and swinging indexing turntable mechanism according to claim 1, characterized in that, The turntable assembly (4) includes an indexing plate (41), a guide seat (42), a guide bearing (43), a telescopic disc assembly (44), and a disc cam assembly (45). The guide seat (42) is connected to the top of the bearing cover (3511). Multiple guide bearings (43) are evenly arranged on the guide seat (42). The telescopic disc assembly (44) is vertically slidably fitted at the guide bearing (43). The disc cam assembly (45) is installed on the top of the output shaft (3309). The telescopic disc assembly (44) includes a guide rail fixing disc (4401), a plurality of guide rails (4402) are evenly arranged on the upper surface of the guide rail fixing disc (4401), a slider (4403) is slidably fitted on the guide rail (4402), a slider connecting plate (4404) is slidably fitted on the slider (4403), and a fifth tapered roller bearing (4409) is rotatably fitted on the top of the output shaft (3309) at the center of the guide rail fixing disc (4401). The upper surface of the slider connecting plate (4404) near the fifth tapered roller bearing (4409) is rotatably equipped with CF bearings (4405). The CF bearings (4405) are rolled on the disc cam assembly (45). The end of the slider connecting plate (4404) away from the CF bearings (4405) is equipped with a gripper (4406) for gripping materials. Multiple guide rods (4407) are evenly arranged vertically on the guide rail fixing plate (4401) by means of the second anti-loosening nut (4408). The guide rods (4407) are located at the bottom of the guide rail fixing plate (4401) and are vertically slidably fitted at the guide bearing (43).

9. A multi-station lifting and swinging indexing turntable mechanism according to claim 8, characterized in that, The disc cam assembly (45) includes a disc cam (4501). The disc cam (4501) is mounted on the top of the output shaft (3309) through a clamping ring (4503) at the center and a washer (4502) at the bottom. A clamping ring cover (4504) is provided on the clamping ring (4503). The disc cam (4501) is located on the outer periphery of the clamping ring (4503) and has multiple limit grooves (45011) evenly arranged and opened. The CF bearing (4405) rolls and fits in the limit groove (45011). The CF bearing (4405) pushes the slider connecting plate (4404) to move by rotating the disc cam (4501).

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