Integrated device for lifting rotation and high-precision positioning of tray

Abstract

The utility model discloses an integrated device for lifting rotation and high-precision positioning of a tray, which relates to the technical field of lifting rotation and high-precision positioning assembly of the tray and comprises a base flat plate, a supporting platform, a lifting guide rod, a lifting device, a fine positioning device and a rotating device. Mechanical design, automatic control and precision measurement technologies are integrated, lifting, rotating and high-precision positioning of the tray can be efficiently and accurately completed, efficient operation depending on a tray assembly line is improved, manual intervention is reduced, assembly precision is enhanced, and the requirements of modern industry for high quality and high efficiency of assembly are met; the problems of low assembly efficiency and insufficient positioning precision in the prior art are effectively solved; the requirements for non-stop type tray positioning / rotation, fine positioning and low noise on a production line are integrated in a relatively compact space, the edge of a roller way is not protruded, and use under various station working conditions is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting, rotating and high-precision positioning and assembly of trays, and specifically relates to an integrated device for tray lifting, rotating and high-precision positioning. Background Technique

[0002] With the continuous development of technology, in most automobile manufacturing enterprises, the requirements for the assembly efficiency of various components in the automobile assembly process are getting higher and higher; in the prior art, the assembly of engines and the like mostly relies on manual operation of equipment for assembly work, but the positioning accuracy of the existing assembly equipment is relatively low, and it is difficult to meet the high-efficiency assembly requirements of engines and the like.

[0003] At the same time, in modern enterprises, the standards for the working environment of automobile assembly and noise control during product use are becoming more and more strict, especially in the European and American markets, the standards for the working environment of automobile assembly and noise control during product use are even more strict; and the existing engine assembly lines mostly use pneumatic drive, which will cause excessive noise during equipment operation, and thus affect the health of workers.

[0004] The stable engine tray jacking mechanism with the application number of CN2021202493314 is also a mechanism for jacking the engine tray, but its positioning accuracy is relatively low, and it is difficult to meet the high-precision positioning requirements of the automatic assembly line. Content of the Utility Model

[0005] The purpose of the utility model is to provide an integrated device for tray lifting, rotating and high-precision positioning, so as to solve the problems of low accuracy and high noise of the existing tray jacking device mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An integrated device for tray lifting, rotation and high-precision positioning, comprising a base plate at the lower part and a support platform at the upper part, both of which are horizontally arranged. An elevating guide rod is provided at each of the four corners between the two, and an elevating device is provided at the middle long center line. A set of fine positioning devices are respectively provided on both sides of the elevating device; A rotating device is provided at the center of the support platform; The support platform is a rectangular platform and a large round hole is provided at its center. A polygonal groove which is coaxially concave is provided at the large round hole on the top surface of the support platform and a rotating device is provided; The elevating device includes a positive and reverse rotating lead screw arranged on the top surface of the base plate in the same vertical plane as its long center line, and both ends of the lead screw are arranged on the top surface of the base through bearing seats. At the same time, an elevating motor is connected to one end outside a bearing seat; On both sides of the positive and reverse rotating lead screw, an elevating slideway parallel to it is respectively arranged on the top surface of the base. On each elevating slideway, two inclined slideways which can slide along its axis are mirror-image arranged. The two inclined slideways on the same side of the two elevating slideways are connected into one body through a driving plate, and a threaded guide sleeve sleeved on the positive and reverse rotating lead screw is provided on the driving plate; On the inclined surface of each inclined slideway, an elevating roller which can roll along its inclined surface and is arranged on the bottom surface of the support platform through a roller bracket is provided; The fine positioning device includes four smooth guide sleeves embedded in the support platform and evenly distributed on the same circumference with the center point of the support platform as the center of the circle. Each smooth guide sleeve is closely arranged against the long side of the support platform; A fine positioning support column which can lift and slide is arranged in each smooth guide sleeve. A positioning clamping ring which is radially concave is arranged at the bottom end of each fine positioning support column, and a fine positioning round pin in the shape of a disc with an increased diameter is arranged at the top end; An inverted U-shaped lock pad motor bracket and a bracket vertical plate arranged close to the long side are respectively arranged on the top surface of the base plate outside the two elevating slideways. A guiding slideway is horizontally arranged on the vertical side surface of the bracket vertical plate close to the lock pad motor bracket. A lock pad connecting rod parallel to it is arranged on the guiding slideway through a slider. A lock pad is arranged at both ends of the lock pad connecting rod. Each lock pad is provided with a U-shaped groove which can be clamped with the positioning clamping ring. A rack is arranged on the lock pad connecting rod close to the lock pad motor bracket. A lock pad driving motor is arranged on the top surface of each lock pad motor bracket, and a horizontal lock pad driving gear which is meshed with the rack is connected to the shaft rod of the lock pad driving motor inside the lock pad motor bracket; The rotating device includes a rotating bearing arranged in the polygonal groove and coaxial with the large round hole and having the same inner diameter. A large rotating gear is installed on the outer ring of the rotating bearing in an interference fit manner, and a disc-shaped rotating bottom plate is arranged on the top surface of the large rotating gear;On one side of the rotating large gear close to the lifting motor, there is an upper transmission gear meshed and connected thereto in the same plane. At the axis center of the upper transmission gear, there is a rotating shaft rod passing through the support platform and connected with a lower transmission gear below the support platform. The lower transmission gear is meshed and connected with a driving gear in the same plane. The shaft rod of the driving gear is connected with a rotating motor, and the rotating motor is arranged on the bottom surface of the support platform through a mounting plate.

[0007] Preferably, the base flat plate is a rectangular flat plate and is provided with a plurality of screw holes on its bottom surface, and is fixedly installed on the bracket by bolts.

[0008] Preferably, the lifting guide rod includes multiple sleeves coaxially sleeved together, and the adjacent two sleeves can slide relative to each other. The bottom end of the outermost sleeve of the lifting guide rod is fixedly connected with the base flat plate, and the top end of the innermost sleeve is fixedly connected with the support platform.

[0009] Preferably, a platform baffle vertically protruding upward is arranged at both short sides of the support platform.

[0010] Preferably, the bolt holes where the roller brackets are fixed on the bottom surface of the support platform are all strip-shaped holes parallel to the lifting slideway; on the bottom surface of the support platform, an adjusting seat is arranged on one side of each roller bracket close to the short center line of the support platform, and an adjusting bolt abutted against the side surface of the roller bracket is arranged on each adjusting seat.

[0011] Preferably, on the top surfaces of two diagonally opposite ones among the four precision positioning round pins, a cylindrical precision positioning pin and a diamond-shaped positioning pin are respectively convexly arranged coaxially.

[0012] Preferably, four guiding roller brackets are evenly distributed on the top surface of the rotating bottom plate on the same circumference, and a guiding roller is arranged on each guiding roller bracket, and the rolling directions of the two guiding rollers at both ends of the same diameter are the same; on the top surface of the rotating bottom plate, a positioning cylinder is arranged on the same circumference at the middle between two adjacent guiding roller brackets.

[0013] Preferably, a platform guard plate with its top surface in the same plane as the top surface of the rotating bottom plate is further arranged on the top surface of the support platform.

[0014] Preferably, a tray recognition probe is arranged at the center of the top surface of the base flat plate through a bracket, and the tray recognition probe extends above the rotating bottom plate through the large round hole.

[0015] Preferably, through the interaction of four guiding rollers with the bottom surface of the pallet, the position deviation of the pallet is automatically adjusted and corrected from 10 mm to within 1 mm; the cooperation of the pallet with the precision positioning pin and the diamond positioning pin achieves precise positioning at the 0.01 mm level.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model combines mechanical design, automatic control and precision measurement technologies, and can efficiently and accurately complete the lifting, rotation and high-precision positioning of the pallet; effectively solves the problems of low assembly efficiency and insufficient positioning accuracy in the prior art.

[0018] 2. The present utility model focuses on improving the high-efficiency operation of the assembly line relying on the pallet, reducing manual intervention, enhancing assembly accuracy, meeting the requirements of high quality and high efficiency of modern industry for assembly; and realizes the integrated automatic processing of pallet positioning on the production line.

[0019] 3. The present utility model integrates the three functions of lifting, rotation and high-precision positioning of the pallet, which is much better than the single-function or simple combination equipment on the market, not only saves space, but also improves production continuity and automation level.

[0020] 4. Through the interaction of four guiding rollers with the bottom surface of the pallet, the position deviation of the pallet is automatically adjusted and corrected from 10 mm to within 1 mm; the cooperation of the pallet with the precision positioning pin and the diamond positioning pin achieves precise positioning at the 0.01 mm level.

[0021] 5. The present utility model integrates the requirements of non-stop pallet positioning / rotation and precision positioning and low noise on the production line into a relatively compact space, does not protrude from the edge of the roller path, and is convenient for use in various station working conditions; and significantly improves the assembly efficiency in actual application, reduces the dependence on manual operation, reduces the error rate and cost, and at the same time improves the product quality and the response speed of the production line.

[0022] 6. Under the condition of no pallet stop device and low roller path height, it can ensure low height and the device does not protrude from the roller path, with high precision and stable long-term operation performance, further enhancing its applicability and competitiveness in the fields such as automobile manufacturing.

[0023] 7. The present utility model is applicable to the rapid switching and precise positioning operations of multiple models of engines, and can also be applicable to the assembly operations of automobile gearboxes, automobile battery packs, etc., providing strong support for the automation upgrade of the automobile manufacturing and maintenance industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an axonometric view of the present utility model;

[0025] Figure 2 is Figure 1 a structural schematic diagram;

[0026] Figure 3 is the front view;

[0027] Figure 4 is Figure 3 the sectional view taken along A-A in;

[0028] Figure 5 is the top view;

[0029] Figure 6 is Figure 5 the sectional view taken along B-B in;

[0030] Figure 7 is Figure 5 the sectional view taken along C-C in;

[0031] Figure 8 is Figure 5 the enlarged view of D in;

[0032] Figure 9 is Figure 5 the schematic diagram of removing the platform guard plate and the rotating bottom plate;

[0033] Figure 10 is the left view;

[0034] Figure 11 is the right view;

[0035] Figure 12 is the rear view;

[0036] In the figure: base flat plate - 1, tray identification probe - 11, support platform - 2, large round hole - 21, polygonal groove - 22, platform baffle - 23, platform guard plate - 24, lifting guide rod - 3, lifting device - 4, left - and - right - hand screw - 41, lifting motor - 42, lifting slideway - 43, inclined slideway - 44, driving plate - 45, threaded guide sleeve - 46, lifting roller - 47, roller bracket - 48, adjusting seat - 49, adjusting bolt - 40, precise positioning device - 5, smooth guide sleeve - 51, precise positioning support column - 52, positioning snap ring - 53, precise positioning round pin - 54, cylindrical precise positioning pin - 55, diamond - shaped positioning pin - 56, lock washer motor bracket - 57, bracket vertical plate - 58, guiding slideway - 59, lock washer connecting rod - 60, lock washer - 61, rack - 62, lock washer driving motor - 63, lock washer driving gear - 64, rotating device - 7, rotating bearing - 71, rotating large gear - 72, rotating bottom plate - 73, upper transmission gear - 74, lower transmission gear - 75, driving gear - 76, rotating motor - 77, guiding roller bracket - 78, guiding roller - 79, positioning cylinder - 80. Detailed implementation manners

[0037] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0038] Please refer to Figures 1-12 , Figure 1 which is the axonometric view of the present utility model; Figure 2 is Figure 1 the structural schematic diagram; Figure 3 is the front view; Figure 4 is Figure 3 the sectional view taken along A-A in Figure 5 is the top view; Figure 6 is Figure 5 the sectional view taken along B-B in Figure 7 is Figure 5 the sectional view taken along C-C in Figure 8 is Figure 5 the enlarged view of D in Figure 9 is Figure 5 the schematic diagram of removing the platform guard plate and the rotating bottom plate; Figure 10 is the left view; Figure 11 is the right view; Figure 12 is the rear view.

[0039] The present utility model provides an integrated device for tray lifting, rotation and high-precision positioning, which can be used for rotating, lifting and high-precision positioning of the tray when relying on tray positioning for assembly; it includes a horizontally arranged base plate 1, a support platform 2 parallel to it is arranged above the base plate 1, a lifting guide rod 3 connecting the two into one body is arranged at each of the four corners between the base plate 1 and the support platform 2, and a lifting device 4 for driving the support platform 2 to move up and down is also arranged between the base plate 1 and the support platform 2, and a set of fine positioning devices 5 for precisely positioning the tray are respectively arranged on both sides of the lifting device 4; a rotating device 7 for rotating the tray is also arranged at the center of the support platform 2.

[0040] The base plate 1 is a horizontally arranged rectangular plate, and a plurality of screw holes are arranged on its bottom surface for using bolts to fixedly install the integrated device for tray lifting, rotation and high-precision positioning on the bracket to assist in the assembly; a lifting guide rod 3 is arranged at each of the four corners of the top surface of the base plate 1, the lifting guide rod 3 includes a plurality of sleeves coaxially sleeved together, and the adjacent two layers of sleeves can slide relative to each other, the bottom end of the outermost sleeve of the lifting guide rod 3 is fixedly connected to the base plate 1, and the top end of the innermost sleeve is fixedly connected to the support platform 2.

[0041] The support platform 2 is a horizontally arranged rectangular platform, and the top ends of a lifting guide rod 3 are respectively connected to the four corners of its bottom surface; a large circular hole 21 is arranged at the center of the support platform 2, and a polygonal groove 22 that is coaxially concave is arranged at the large circular hole 21 on the top surface of the support platform 2, and a rotating device 7 is arranged at the polygonal groove 22; platform baffles 23 that protrude vertically upward are arranged at both short sides of the support platform 2 to prevent the tray from exceeding the support platform 2.

[0042] The lifting device 4 includes a positive and reverse screw rod 41 arranged on the top surface of the base flat plate 1 in the same vertical plane as its long center line. Both ends of the positive and reverse screw rod 41 are arranged on the top surface of the base 1 through bearing seats, and one end of the positive and reverse screw rod 41 is connected to a lifting motor 42 arranged on the top surface of the base 1 outside the bearing seat; two lifting slideways 43 parallel to it are respectively arranged on the top surface of the base 1 on both sides of the positive and reverse screw rod 41, and two inclined slideways 44 that can slide along its axial direction are arranged on each lifting slideway 43. The two inclined slideways 44 on the same lifting slideway 43 are arranged in mirror symmetry, and at the same time, the two inclined slideways 44 on the same side of the two lifting slideways 43 are connected into one body through a driving plate 45, and a threaded guide sleeve 46 is arranged on the driving plate 45, and a screw hole is arranged at the axis of the threaded guide sleeve 46 and is sleeved on the positive and reverse screw rod 41 in a matching manner, so that the positive and reverse screw rod 41 can be driven to rotate by the lifting motor 42, and then the two inclined slideways 44 on the same lifting slideway 43 can be driven to approach or move away from each other; a lifting roller 47 that can roll along its inclined surface is arranged on the inclined surface of each inclined slideway 44, and the lifting roller 47 is fixedly arranged on the bottom surface of the support platform 2 through a roller bracket 48, so that the support platform 2 can be lifted by the up and down sliding of the lifting roller 47 on the inclined surface of the inclined slideway 44.

[0043] The roller bracket 48 is fixed to the bottom surface of the support platform 2 by bolts, and each bolt hole of the roller bracket 48 is a strip-shaped hole parallel to the lifting slideway 43, so that the fixed position of the roller bracket 48 can be adjusted; an adjusting seat 49 is arranged on the bottom surface of the support platform 2 on one side of each roller bracket 48 close to the short center line of the support platform 2, and an adjusting bolt 40 is arranged on each adjusting seat 49, and the adjusting bolt 40 abuts against the side surface of the roller bracket 48, so that the fixed position of the roller bracket 48 can be adjusted by the adjusting bolt 40, and then the lifting height of the support platform 2 can be adjusted.

[0044] The fine positioning device 5 includes four smooth guide sleeves 51 embedded in the support platform 2 and evenly distributed on the same circumference with its center point as the center of the circle on the support platform 2, and each smooth guide sleeve 51 is arranged close to the long side of the support platform 2; a fine positioning support column 52 that can lift and slide is arranged in each smooth guide sleeve 51, a radially concave positioning snap ring 53 is arranged at the bottom end of each fine positioning support column 52, and a disk-shaped fine positioning round pin 54 with an increased diameter is arranged at the top end. A cylindrical fine positioning pin 55 and a diamond-shaped positioning pin 56 are respectively convexly arranged coaxially on the top surfaces of two diagonally opposite ones among the four fine positioning round pins 54, and the tray can be finely positioned through the cylindrical fine positioning pin 55 and the diamond-shaped positioning pin 56; the fine positioning device 5 further includes an inverted U-shaped lock pad motor bracket 57 and a bracket vertical plate 58 arranged close to the long side respectively on the outer sides of two lifting slideways 43 on the top surface of the base plate 1. A guide slideway 59 is horizontally arranged on the vertical side surface of the bracket vertical plate 58 close to the lock pad motor bracket 57, and a lock pad connecting rod 60 parallel to it is arranged on the guide slideway 59 through a slider. A lock pad 61 is arranged at both ends of the lock pad connecting rod 60, and each lock pad 61 is provided with a U-shaped groove that can be clamped with the positioning snap ring 53. A rack 62 is arranged on the lock pad connecting rod 60 close to the lock pad motor bracket 57. A lock pad driving motor 63 is arranged on the top surface of each lock pad motor bracket 57, and a horizontal lock pad driving gear 64 is connected to the shaft rod of the lock pad driving motor 63 inside the lock pad motor bracket 57. The lock pad driving gear 64 is meshed and connected with the rack 62, so that the lock pad 61 can be driven to be clamped at the positioning snap ring 53 through the lock pad driving motor 63.

[0045] The rotating device 7 includes a rotating bearing 71 arranged in the polygonal groove 22 and coaxial with and having the same inner diameter as the large round hole 21. A rotating large gear 72 is installed on the outer ring of the rotating bearing 71 by interference fit, and a disk-shaped rotating bottom plate 73 is arranged on the top surface of the rotating large gear 72; the rotating large gear 72 is meshed and connected with an upper transmission gear 74 in the same plane on the side close to the lifting motor 42. A rotating shaft rod penetrating the support platform 2 is arranged at the center of the upper transmission gear 74, and a lower transmission gear 75 is connected below the support platform 2. The lower transmission gear 75 is meshed and connected with a driving gear 76 in the same plane. The shaft rod of the driving gear 76 is connected with a rotating motor 77, and the rotating motor 77 is arranged on the bottom surface of the support platform 2 through a mounting plate;

[0046] On the top surface of the rotating bottom plate 73, four guiding roller brackets 78 are evenly distributed on the same circumference, and a guiding roller 79 is arranged on each guiding roller bracket 78. The rolling directions of the two guiding rollers 79 at both ends of the same diameter are the same. On the top surface of the rotating bottom plate 73, a positioning cylinder 80 is arranged on the same circumference at the middle position between two adjacent guiding roller brackets 78.

[0047] In addition, a platform guard plate 24 with the top surface in the same plane as the top surface of the rotating bottom plate 73 is arranged on the top surface of the support platform 2.

[0048] A tray identification probe 11 is arranged at the center of the top surface of the base plate 1 through a bracket. The tray identification probe 11 extends above the rotating bottom plate 73 through the large circular hole 21, so as to identify the tray.

[0049] During use, for the deviation correction of the tray: at the initial stage of tray lifting, through the interaction between the four guiding rollers 79 and the special contact structure on the bottom surface of the tray, even if the initial placement of the tray has a deviation of up to 10 mm during the lifting process, the deviation can be automatically adjusted and corrected within 1 mm through the interaction of the guiding rollers 79, laying a foundation for subsequent precise positioning.

[0050] For tray lifting: driven by the lifting motor 42 and precisely controlled by the forward and reverse screw rod 41, the lifting roller 47 is pushed to roll along the inclined plane of the inclined plane slideway 44, realizing the smooth rise of the entire support platform 2. During lifting, the guiding rollers 79 apply a directional force to the tray, ensuring that the tray is not only vertically lifted during the rising process, but also automatically righted within a certain position range until it reaches the appropriate rotation operation height. This design takes into account both rotation and positioning preparation.

[0051] For tray rotation: the rotation motor 77 effectively increases torque and reduces speed through two-stage gear transmission, ensuring the stability and accuracy of power transmission. Finally, it meshes with the large rotating gear 72 to realize the smooth and controllable rotation of the tray. This transmission method ensures the smoothness and durability during the rotation process and is the key to realizing the efficient operation of the automated assembly line.

[0052] For the precise positioning of the tray: after the tray rotates and is adjusted to the predetermined position, the precise positioning link is started. Through the precise control of the lock washer driving motor 63 by means of the transmission of the gear rack, the lock washer 61 is precisely pushed into the positioning snap ring 53 to provide a reaction force for the precise positioning support column 52. At this time, the support platform 2 slowly descends, and the tray falls into the precise positioning pin 55 and the diamond positioning pin 56 under the action of gravity, achieving precise positioning at the 0.01 mm level, ensuring the ultimate precision requirements for assembly or maintenance, and being the core step to achieve high-precision operation in the entire technical solution.

[0053] The utility model combines mechanical design, automatic control and precision measurement technologies, and can efficiently and accurately complete the lifting, rotation and high-precision positioning of the pallet; effectively solves the problems of low assembly efficiency and insufficient positioning accuracy in the prior art; the utility model focuses on improving the high-efficiency operation of the assembly line relying on the pallet, reducing manual intervention, enhancing the assembly accuracy, and meeting the requirements of high quality and high efficiency of assembly in the modern automobile industry; and realizes the integrated automatic processing on the production line; integrates the three functions of lifting, rotation and high-precision positioning of the pallet, which is much better than the single-function or simple combination equipment on the market, not only saves space, but also improves the production continuity and automation level; through the interaction of four guide rollers and the bottom surface of the pallet, the position deviation of the pallet is automatically adjusted and corrected from 10 mm to within 1 mm; through the cooperation of the pallet and the precision positioning pin and the diamond positioning pin, the precise positioning at the 0.01 mm level is achieved; the utility model integrates the requirements of pallet positioning / rotation and precision positioning without stopping and low noise on the production line into a relatively compact space, does not protrude from the edge of the roller path, and is convenient for use in various station working conditions; and significantly improves the assembly efficiency in practical applications, reduces the dependence on manual operation, reduces the error rate and cost, and at the same time improves the product quality and the response speed of the production line; under the conditions of no stopping device for the pallet and low roller path height, it can ensure a low height and the device does not expose the roller path, and has high-precision and stable long-term operation performance, further enhancing its applicability and competitiveness in the fields of automobile manufacturing, etc.

[0054] Although the embodiments of the utility model have been shown and described, obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, for those of ordinary skill in the art, it can be understood that without departing from the principle and spirit of the utility model, all other embodiments obtained by making various changes, modifications, substitutions and variations to these embodiments without creative work belong to the scope of protection of the utility model.

Claims

1. An integrated device for pallet lifting, rotation and high-precision positioning, characterized in that: It includes a base flat plate (1) at the lower part and a support platform (2) at the upper part, both of which are horizontally arranged. A lifting guide rod (3) is provided at each of the four corners between the two, and a lifting device (4) is provided at the middle long center line. A set of precise positioning devices (5) are respectively provided on both sides of the lifting device (4); a rotating device (7) is provided at the center of the support platform (2); the support platform (2) is a rectangular platform and a large round hole (21) is provided at its center. A coaxial concave polygon groove (22) is provided at the large round hole (21) on the top surface of the support platform (2), and a rotating device (7) is provided; the lifting device (4) includes a positive and reverse screw rod (41) arranged on the top surface of the base flat plate (1) in the same vertical plane as its long center line, and both ends of the positive and reverse screw rod (41) are arranged on the top surface of the base flat plate (1) through bearing seats. At the same time, a lifting motor (42) is connected to one end outside a bearing seat; on both sides of the positive and reverse screw rod (41) on the top surface of the base flat plate (1), a lifting slideway (43) parallel to it is respectively arranged. On each lifting slideway (43), two inclined slideways (44) that can slide along its axis are mirror-symmetrically arranged. The two inclined slideways (44) on the same side of the two lifting slideways (43) are connected into one body through a driving plate (45), and a threaded guide sleeve (46) sleeved on the positive and reverse screw rod (41) is provided on the driving plate (45); on the inclined surface of each inclined slideway (44), a lifting roller (47) that can roll along its inclined surface is provided through a roller bracket (48) on the bottom surface of the support platform (2); the precise positioning device (5) includes four smooth guide sleeves (51) embedded on the support platform (2) and evenly distributed on the same circumference with the center point of the support platform (2) as the center. Each smooth guide sleeve (51) is closely arranged against the long side of the support platform (2); a precisely positionable support column (52) that can lift and slide is arranged in each smooth guide sleeve (51). A radially concave positioning snap ring (53) is provided at the bottom end of each precisely positionable support column (52), and a disk-shaped precisely positionable round pin (54) with an increased diameter is provided at the top end.On the top surface of the base plate (1), there are respectively provided an inverted U-shaped lock pad motor bracket (57) outside the two lifting slideways (43) and a bracket vertical plate (58) disposed close to the long side. On the vertical side of the bracket vertical plate (58) close to the lock pad motor bracket (57), a guiding slideway (59) is horizontally provided. On the guiding slideway (59), a lock pad connecting rod (60) parallel thereto is provided through a slider. Both ends of the lock pad connecting rod (60) are each provided with a lock pad (61). Each lock pad (61) is provided with a U-shaped groove that can be clamped with the positioning snap ring (53). The lock pad connecting rod (60) is provided with a rack (62) close to the lock pad motor bracket (57). On the top surface of each lock pad motor bracket (57), a lock pad driving motor (63) is provided. And the shaft of the lock pad driving motor (63) is connected with a horizontal lock pad driving gear (64) that meshes with the rack (62) inside the lock pad motor bracket (57); The rotating device (7) includes a rotating bearing (71) disposed in the polygonal groove (22) and coaxial with and having the same inner diameter as the large round hole (21). An outer ring of the rotating bearing (71) is press-fitted with a rotating large gear (72), and a disc-shaped rotating bottom plate (73) is provided on the top surface of the rotating large gear (72); The rotating large gear (72) is meshed with an upper transmission gear (74) in the same plane on the side close to the lifting motor (42). A rotating shaft rod penetrating through the support platform (2) is provided at the axis center of the upper transmission gear (74), and a lower transmission gear (75) is connected below the support platform (2). The lower transmission gear (75) is meshed with a driving gear (76) in the same plane. A shaft rod of the driving gear (76) is connected with a rotating motor (77). The rotating motor (77) is arranged on the bottom surface of the support platform (2) through a mounting plate. ; 2. The integrated device for pallet lifting, rotation and high-precision positioning according to claim 1, wherein: The base flat plate (1) is a rectangular flat plate and is provided with a plurality of screw holes on its bottom surface, and is fixedly installed on the bracket by bolts.

3. The integrated device for pallet lifting, rotation and high-precision positioning according to claim 1, characterized in that: The lifting guide rod (3) includes multiple sleeves sleeved coaxially together, and the adjacent two sleeves can slide relative to each other. The bottom end of the outermost sleeve of the lifting guide rod (3) is fixedly connected to the base flat plate (1), and the top end of the innermost sleeve is fixedly connected to the support platform (2).

4. The integrated device for pallet lifting, rotation and high-precision positioning according to claim 1, characterized in that: Platform baffles (23) protruding vertically upward are provided at both short sides of the support platform (2).

5. The integrated device for tray lifting, rotation and high-precision positioning according to claim 1, characterized in that: The bolt holes where the roller brackets (48) are fixed on the bottom surface of the support platform (2) are all elongated holes parallel to the lifting slideway (43); on the bottom surface of the support platform (2), an adjusting seat (49) is provided on one side of each roller bracket (48) close to the short center line of the support platform (2), and an adjusting bolt (40) abutted against the side surface of the roller bracket (48) is provided on each adjusting seat (49).

6. The integrated device for pallet lifting, rotation and high-precision positioning according to claim 1, wherein: On the top surfaces of two diagonally opposite ones among the four precision positioning round pins (54), a cylindrical precision positioning pin (55) and a diamond-shaped positioning pin (56) are coaxially and convexly provided respectively.

7. The integrated device for tray lifting, rotation and high-precision positioning according to claim 1, characterized in that: On the top surface of the rotating bottom plate (73), four guiding roller brackets (78) are evenly distributed on the same circumference, and a guiding roller (79) is provided on each guiding roller bracket (78), and the rolling directions of the two guiding rollers (79) at both ends of the same diameter are the same; on the top surface of the rotating bottom plate (73), a positioning cylinder (80) is provided on the same circumference at the middle of two adjacent guiding roller brackets (78).

8. The integrated device for tray lifting, rotation and high-precision positioning according to claim 1, characterized in that: On the top surface of the support platform (2), a platform guard plate (24) whose top surface is in the same plane as the top surface of the rotating bottom plate (73) is further provided.

9. The integrated device for pallet lifting, rotation and high-precision positioning according to claim 1, characterized in that: A tray recognition probe (11) is provided at the center of the top surface of the base flat plate (1) through a bracket, and the tray recognition probe (11) extends above the rotating bottom plate (73) through the large round hole (21).

10. The integrated device for tray lifting, rotation and high-precision positioning according to claim 6, characterized in that: Through the interaction of the four guiding rollers (79) with the bottom surface of the tray, the position deviation of the tray is automatically adjusted from 10 mm and the deviation is corrected to within 1 mm; the cooperation of the tray with the precision positioning pin (55) and the diamond-shaped positioning pin (56) achieves precise positioning at the 0.01 mm level.

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