A movable caster lifting AGV backpack
By designing a movable caster lifting AGV load frame, the problem of AGV being occupied and waited for a long time in the super-large equipment processing workshop is solved, and the timely release of AGV and the efficiency of component scheduling between the stations is achieved.
Patent Information
- Application Number
- CN202420933914.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In super-large equipment processing and assembly workshops, when AGV transports large parts, space restrictions and driving installation are restricted, resulting in long-term occupation and waiting for AGV, which affects the processing or assembly progress of equipment.
A movable caster lifting AGV load frame is designed. After the AGV arrives at the designated location, the casters of the load frame are lowered to the ground, and the AGV is separated from the load frame. The load frame can be used as an independent working platform. The AGV moves to perform the dispatch and transport of the next parts.
Through this device, the AGV can be released in time, avoiding long-term occupation, improving the efficiency of component scheduling between the stations, and improving assembly progress.
Smart Images
Figure CN222713625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical equipment transfer auxiliary devices, in particular to a movable caster lifting AGV backpack. Background Art
[0002] In some super-large equipment processing and assembly workshops, the processing and assembly of large components require AGV to transfer components: the components are hoisted onto the AGV by a crane, and the AGV transfers the components to the next station for reprocessing or assembly. If the station needs to temporarily store the components or the AGV trolley cannot enter the processing area of the station due to special processing technology (such as the surface treatment spraying area, etc.), the components need to be unloaded from the AGV in time to avoid the AGV from occupying and waiting for a long time. Because large equipment is composed of different parts, these parts need to be dispatched by AGV for transportation. If the transportation is not timely, it will affect the processing or assembly progress of the equipment, thereby affecting the delivery process of the entire equipment. Therefore, each station AGV should not occupy too long. On the other hand, because the installation and operation of the crane are affected by the space, it is not possible to reach each station with a crane, which will also increase the occupancy time of the AGV. In view of this situation, it is urgent to develop a more flexible auxiliary device to release the AGV in time so that the AGV can effectively meet the workshop scheduling. Summary of the invention
[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a movable caster-lifting AGV backpack. After the AGV arrives at the designated location, the casters of the backpack are lowered to the ground and lifted up to separate the AGV from the backpack. The backpack can be used independently as a working platform, and the AGV moves to carry out the scheduling and transportation of the next component.
[0004] The technical solution adopted by the utility model is:
[0005] A movable caster lifting AGV backpack includes a support frame, a working platform is arranged above the support frame, four groups of legs are arranged below the support frame, and caster groups that can be adjusted up and down are arranged on the legs. The caster groups that can be adjusted up and down include up and down sliding components and eccentric pressing components. The up and down sliding components are arranged below the legs, and the eccentric pressing components are arranged above the up and down sliding components.
[0006] The up and down sliding assembly includes a guide support sleeve, which is vertically fixed on the inner side of the support leg. A sliding support leg is vertically slidably arranged in the guide support sleeve. A caster is arranged on the bottom end surface of the sliding support leg. A rotating wheel is arranged above the sliding support leg, and an eccentric downward pressure assembly is arranged above the rotating wheel.
[0007] The eccentric downward pressure assembly includes a flip arm, which is a U-shaped structural member, and the crossbeam is a pull rod. A group of eccentric rotating wheels are respectively arranged at the outwardly bent and extended ends at both ends of the U-shaped opening. The eccentric rotating wheel also passes through a first rotating shaft. The eccentric rotating wheel can rotate around the first rotating shaft, and the first rotating shaft is fixedly arranged on the support leg.
[0008] A fixed block is provided on the outer wall of the middle part of the top cross beam of the support frame, and is provided on the side with the flip arm. A circular through hole is vertically provided on the end face of the fixed block, and a limit pin is provided in the circular through hole. A second limit plate is fixedly provided on the top cross beam, and the second limit plate is matched with the limit pin provided in the fixed block, so as to limit the upper position of the flip wall.
[0009] The second limiting plate is provided with a bending angle C, and the bending angle C matches the turning angle D of the turning arm turning upward to the second limiting plate.
[0010] A limit sleeve is fixedly arranged on the outer wall of the guide support sleeve, a circular through hole is arranged on the limit sleeve, a limit pin is arranged in the circular through hole, and a first limit plate is also arranged on the side wall of the guide support sleeve, the first limit plate is matched with the limit pin arranged in the limit sleeve, and is used to limit the position of the flip arm at the bottom.
[0011] The limiting surface of the first limiting plate is provided with an inclination angle A, and the inclination angle A matches the flipping angle B of the flip arm flipping downward to the first limiting plate.
[0012] The flip arm flips upward, and the proximal end surface of the eccentric rotating wheel contacts the outer circumferential surface of the rotating wheel; the flip arm flips downward, and the distal end surface of the eccentric rotating wheel contacts the outer circumferential surface of the rotating wheel.
[0013] An upper limit pin and a lower limit pin are transversely provided on the sliding legs and the guide support sleeves. The upper limit pin is used to limit the height position when the caster is lifted, and the lower limit pin is used to limit the height position when the caster is dropped.
[0014] Beneficial effects of the utility model:
[0015] The utility model discloses a movable caster lifting AGV backpack frame, in which a working platform is arranged above the support frame for loading equipment parts. A support leg is arranged below the support frame, and a caster group that can be adjusted up and down is arranged on the support leg. The caster group that can be adjusted up and down includes an up and down sliding component and an eccentric pressing component. The up and down sliding component includes a guide and a sliding caster group, which is arranged below the support leg. The caster can be adjusted up and down, and an upper and lower limit pin is arranged on the component to limit the mechanism of the caster group to ensure the stability of the structural operation. An eccentric pressing component is arranged above the up and down sliding component, and the eccentric pressing component includes a flip arm. Both ends of the flip arm are arranged on the eccentric wheel group. The flip arm flips up and down to drive the distal end face and the proximal end face of the eccentric wheel to cooperate with the up and down sliding component, so that the caster group is lifted or lowered. The bracket is also provided with an upper limit member and a lower limit member of the flip arm to ensure the stability of the mechanism operation. When working, first load the equipment parts onto the working platform of the support frame, then the AGV trolley runs to the bottom of the support frame, the AGV trolley top plate lifts the support frame, and the casters are lifted off the ground. After the AGV trolley runs the support frame and the equipment parts on it to the required workstation, the casters of the support frame fall back, the AGV trolley top plate drops and separates from the support frame, and the AGV trolley runs out from under the support frame and runs to another workstation according to the dispatch signal. The support frame and its equipment parts are left at the designated workstation waiting for processing or assembly. Because there is a caster group under the support frame, the equipment parts can be flexibly and in a small range at this workstation, releasing the waiting time of the AGV and effectively improving the assembly progress of the equipment parts at each workstation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the following specifically cites preferred embodiments and cooperates with the attached drawings, but the embodiments in the drawings do not constitute any limitation of the present invention. For ordinary technicians in this field, other drawings can be obtained according to the following drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure;
[0018] Figure 2 for Figure 1 Left view;
[0019] Figure 3 It is a schematic diagram of the cross-sectional structure when the flip arm flips to the upper side;
[0020] Figure 4 It is a schematic diagram of the cross-sectional structure when the flip arm flips to the bottom;
[0021] Figure 5 It is a schematic diagram of the coordination structure between the flip arm and the second limiting plate;
[0022] Figure 6 It is a schematic diagram of the coordination structure between the flip arm and the first limiting plate.
[0023] In the figure: 1-support frame, 101-leg, 102-working platform, 2-turning arm, 3-eccentric wheel, 4-rotating wheel, 5-sliding leg, 6-guide support sleeve, 7-castor, 8-limiting pin, 9-first rotating shaft, 10-second rotating shaft, 11-fixed block, 12-second limiting plate, 13-upper limiting pin, 14-limiting sleeve, 15-first limiting plate, 16-AGV trolley, 1601-AGV trolley lifting plate, 17-equipment parts, 18-lower limiting pin. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.
[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings attached to this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0026] like Figure 1 , Figure 2As shown, a movable caster lifting AGV backpack includes a support frame 1, and a working platform 102 is arranged above the support frame 1 for carrying items. Four groups of legs 101 are arranged below the support frame 1, and the legs 101 are provided with caster groups that can be adjusted up and down. The caster groups that can be adjusted up and down include an up and down sliding component and an eccentric pressing component. The up and down sliding component is arranged below the legs 101, and an eccentric pressing component is arranged above the up and down sliding component. The up and down sliding component includes a guide support sleeve 6, which is vertically fixedly arranged on the inner side of the legs 101, and the guide support sleeves 6 on the inner side of the four groups of legs 101 are arranged opposite to each other. A guide hole is vertically arranged in the guide support sleeve 6, and a sliding leg 5 is inserted in the guide hole. A caster 7 is arranged on the bottom end surface below the sliding leg 5, and a rotating wheel 4 is arranged above the sliding leg 5. The rotating wheel 4 is rotatably hinged above the sliding leg 5 with a second rotating shaft 10. An eccentric pressing component is arranged above the rotating wheel 4. The eccentric downward pressure assembly includes a flip arm 2, which is a U-shaped structural member formed by bending a cylindrical member, with a crossbeam as a pull rod, and a group of eccentric wheels 3 are respectively arranged on the outwardly bent extension ends at both ends of the U-shaped opening. Two penetrating circular shaft holes are arranged on the center line of the end face of the eccentric wheel 3, and a first rotating shaft 9 is passed through one of the circular shaft holes. The eccentric wheel 3 can rotate around the first rotating shaft 9, and the first rotating shaft 9 is fixedly arranged on the support leg 101. The outer cylindrical surface of the eccentric wheel 3 radially close to the first rotating shaft 9 is the proximal end surface, and the outer cylindrical surface far from the first rotating shaft 9 is the distal end surface. The other circular shaft holes of the eccentric wheel 3 are fixedly connected to the outer extension ends of the U-shaped opening of the flip arm 2. The flip arm 2 can flip upward or downward around the first rotating shaft 9. The eccentric wheel 3 is in tangential contact with the rotating wheel 4.
[0027] like Figure 3 , 4 As shown, when the turning arm 2 turns upward, the proximal end surface of the eccentric wheel 3 contacts the outer circumferential surface of the rotating wheel 4, and when the turning arm 2 turns downward, the distal end surface of the eccentric wheel 3 contacts the outer circumferential surface of the rotating wheel 4.
[0028] like Figure 1 As shown, a fixing block 11 is provided on the outer wall in the middle of the top crossbeam of the support frame 1, and is provided on the side with the flip arm. A circular through hole is vertically provided on the end face of the fixing block 11, and a limiting latch 8 is provided in the circular through hole. A second limiting plate 12 is fixedly provided on the lower end face in the middle of the top crossbeam. The second limiting plate 12 and the fixing block 11 are provided on the same crossbeam. The second limiting plate 12 is matched with the limiting latch 8 provided in the fixing block 11, and is used to limit the upper position of the flip wall 2. When the flip arm 2 in the eccentric pressing assembly flips upward, and the crossbeam of the flip wall 2 abuts against the second limiting plate 12, as shown Figure 3 As shown, the limit pin 8 is inserted into the circular through hole on the fixing block 11 to limit the flip wall 2 from flipping downward. Figure 5As shown, the second limiting plate 12 is provided with a bending angle C, and the bending angle C matches the turning angle D of the turning arm 2 when it turns upward to the second limiting plate 12 .
[0029] like Figure 1 As shown, a limit sleeve 14 is fixedly provided on the outer wall of the guide support sleeve 6. The limit sleeve 14 is a cylindrical part, which is laterally arranged on the outer wall of the guide support sleeve 6. A circular through hole is arranged on the central axis of the limit sleeve 14, and a limit pin 8 is arranged in the circular through hole. A first limit plate 15 is also arranged on the side wall of the guide support sleeve 6. The first limit plate 15 is matched with the limit pin 8 arranged in the limit sleeve 14, and is used to limit the position of the flip arm 2 at the bottom. When the flip arm 2 in the eccentric pressing assembly flips downward, and the crossbeam of the flip wall 2 abuts against the first limit plate 15, the limit pin 8 is inserted into the circular through hole on the limit sleeve 14 to limit the position of the flip wall 2. As shown Figure 6 As shown, the limiting surface of the first limiting plate 15 is provided with an inclination angle A, and the inclination angle A matches the flipping angle B when the flip arm 2 flips downward to the first limiting plate 15 .
[0030] like Figure 1 As shown, the upper limit pin 13 is transversely arranged on the sliding leg 5 and the guide support sleeve 6 to limit the height position of the caster 7 when it is lifted. The lower limit pin 18 is transversely arranged on the sliding leg 5 and the guide support sleeve 6 to limit the height position of the caster 7 when it is lowered. Figure 3 As shown, when the flip arm 2 flips upward, the proximal outer surface of the eccentric wheel 3 rotates downward, and the sliding leg 5 is lifted upward, and then the limiting pin 13 is inserted into the pin hole on the sliding leg 5 and the guide support sleeve 6, and the sliding leg 5 is height-limited, so that the caster 7 is off the ground. Figure 4 As shown, when the flip arm 2 flips downward, the outer circular surface of the distal end of the eccentric wheel 3 rotates downward, the rotating wheel 4 moves downward under the pressure of the eccentric wheel 3, the sliding leg 5 moves downward, the caster 7 abuts against the ground, and lifts the support frame 1 upward, and the leg 101 leaves the ground. At this time, the limit pin 18 is inserted into the pin hole on the sliding leg 5 and the guide support sleeve 6, and the sliding leg 5 is height-limited to ensure its stable operation.
[0031] This device is used in conjunction with AGV to transport equipment parts that need to be transported in a timely manner. The initial use state of this device is: the flip arm 2 is in a downward flipping state, the flip arm 2 flips downward, the distal outer surface of the eccentric wheel 3 rotates downward, the rotating wheel 4 moves downward under the pressure of the eccentric wheel 3, the sliding leg 5 moves downward, the caster 7 contacts the ground, the support frame 1 is lifted upward, and the leg 101 is off the ground. Figure 3As shown, at this time, the equipment parts to be operated are hoisted onto the work platform 102, the position of the support frame 1 is fine-tuned, the AGV trolley 16 runs to the bottom of the support frame 1, and the AGV trolley lifting plate 1601 is lifted to lift the support frame 1, and the caster 7 is off the ground. At this time, the caster 7 needs to be retracted, the flip arm 2 is flipped upward, and the proximal outer circle of the eccentric wheel 3 is rotated downward. At this time, the sliding leg 5 is lifted upward, and then the limit pin 13 is inserted into the pin hole on the sliding leg 5 and the guide support sleeve 6. The sliding leg 5 is height-limited to lift the caster 7 off the ground. The AGV trolley 16 starts to run, and the support frame 1 and the equipment parts placed on the support frame 1 are transported to the designated location. The AGV trolley 16 stops running, the foot 7 drops, and the limit pin 13 is pulled out from the pin hole on the sliding leg 5 and the guide support sleeve 6, as shown. Figure 4 The distal outer circular surface of the eccentric wheel 3 shown rotates downward, the rotating wheel 4 moves downward under the pressure of the eccentric wheel 3, the sliding leg 5 moves downward, the caster 7 abuts against the ground, and lifts the support frame 1 upward, and the leg 101 is separated from the ground. At this time, the limit pin 18 is inserted into the pin hole on the sliding leg 5 and the guide support sleeve 6 to limit the height of the sliding leg 5. The AGV trolley lifting plate 1601 falls back and separates from the bottom of the support frame 1. The AGV trolley 16 starts to run, runs out from the bottom of the support frame 1, and runs to another workstation according to the dispatch signal. The equipment parts 17 on the support frame 1 remain in this workstation waiting for processing or assembly. Because the caster 7 is provided under the support frame 1, it is relatively convenient to move the equipment parts 17 within a short distance in this workstation.
Claims
1. A movable caster lifting AGV backpack, comprising a support frame (1), a working platform (102) is arranged above the support frame (1), four groups of legs (101) are arranged below the support frame (1), and caster groups that can be adjusted up and down are arranged on the legs (101), characterized in that: The up-and-down adjustable caster assembly comprises an up-and-down sliding assembly and an eccentric pressing assembly, wherein the up-and-down sliding assembly is arranged below the supporting leg (101), and the eccentric pressing assembly is arranged above the up-and-down sliding assembly; The up-and-down sliding assembly comprises a guide support sleeve (6), the guide support sleeve (6) being vertically fixedly arranged on the inner side of the support leg (101), a sliding support leg (5) being vertically slidably arranged in the guide support sleeve (6), a caster (7) being arranged on the bottom end surface of the sliding support leg (5), a rotating wheel (4) being arranged above the sliding support leg (5), and an eccentric pressing assembly being arranged above the rotating wheel (4); The eccentric downward pressing assembly comprises a flip arm (2), the flip arm (2) is a U-shaped structural member, the crossbeam is a pull rod, and a group of eccentric rotating wheels (3) are respectively arranged at the outwardly bent and extended ends at both ends of the U-shaped opening, and a first rotating shaft (9) is also passed through the eccentric rotating wheel (3). The eccentric rotating wheel (3) can rotate around the first rotating shaft (9), and the first rotating shaft (9) is fixedly arranged on the support leg (101).
2. The movable caster lifting AGV backpack according to claim 1, characterized in that: A fixing block (11) is provided on the outer side wall of the middle part of the top cross beam of the support frame (1) and is provided on the side with the flip arm; a circular through hole is vertically provided on the end face of the fixing block (11); a limit pin (8) is provided in the circular through hole; a second limit plate (12) is fixedly provided on the top cross beam; the second limit plate (12) is matched with the limit pin (8) provided in the fixing block (11) and is used to limit the upper position of the flip arm (2).
3. The movable caster lifting AGV backpack according to claim 2, characterized in that: The second limit plate (12) is provided with a bending angle C, and the bending angle C matches the turning angle D of the turning arm (2) when it turns upward to the second limit plate (12).
4. The movable caster lifting AGV backpack according to claim 1, characterized in that: A limiting sleeve (14) is fixedly arranged on the outer wall of the guide support sleeve (6), the limiting sleeve (14) is provided with a circular through hole, a limiting latch (8) is arranged in the circular through hole, and a first limiting plate (15) is also arranged on the side wall of the guide support sleeve (6), the first limiting plate (15) is matched with the limiting latch (8) arranged in the limiting sleeve (14), and is used to limit the downward position of the flip arm (2).
5. The movable caster lifting AGV backpack according to claim 4, characterized in that: The limiting surface of the first limiting plate (15) is provided with an inclination angle A, and the inclination angle A matches the flipping angle B when the flip arm (2) flips downward to the first limiting plate (15).
6. The movable caster lifting AGV backpack according to claim 1, characterized in that: The flip arm (2) flips upward, and the proximal end surface of the eccentric rotating wheel (3) contacts the outer circumferential surface of the rotating wheel (4); the flip arm (2) flips downward, and the distal end surface of the eccentric rotating wheel (3) contacts the outer circumferential surface of the rotating wheel (4).
7. The movable caster lifting AGV backpack according to claim 1, characterized in that: An upper limit pin (13) and a lower limit pin (18) are disposed transversely through the sliding leg (5) and the guide support sleeve (6); the upper limit pin (13) is used to limit the height position of the caster (7) when it is lifted, and the lower limit pin (18) is used to limit the height position of the caster (7) when it is lowered.