An apparatus for handling SPS material carts

Abstract

The application discloses a device for carrying SPS material trolley, and relates to the technical field of carrying SPS material trolley, which comprises an up-line guide mechanism, a down-line guide mechanism, a track foundation, a walking trolley and a carrying clamp, the up-line guide mechanism and the down-line guide mechanism are arranged at the two ends of the up-line and down-line paths of the SPS material trolley respectively, the track foundation is laid along the up-line and down-line paths, the walking trolley is slidably connected to the track foundation, and the carrying clamp is installed at the execution end of the walking trolley. The device for carrying SPS material trolley guides the traveling direction of the material trolley through the guide strip, cooperates with the detection support to accurately detect the position, the positioning cylinder to stably fix the position, and the collaborative action of the separation mechanism and the lifting rod assembly, so that the orderly separation and reliable positioning of the SPS material trolley in the up-line stage are realized, the material trolley is prevented from deviating or colliding, and it is ensured that the subsequent carrying clamp can accurately clamp.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transporting SPS material trolley, in particular to a device for transporting SPS material trolley. BACKGROUND

[0002] SPS material trolley is a key tool for lean production in the field of large-scale production such as automobile manufacturing, mainly used for grouping and loading the required parts of a specific vehicle model according to the production order, and then accurately delivering them to the corresponding station of the production line, so as to reduce the accumulation of materials at the station, shorten the time for workers to take materials, and improve the production rhythm and assembly efficiency. In the automobile assembly workshop, a SPS material trolley usually corresponds to a certain assembly link of a specific vehicle model, and the number of parts carried can reach dozens to hundreds, and the weight varies from several dozen kilograms to several hundred kilograms according to different vehicle models. The device for transporting SPS material trolley is an important link connecting the parts warehouse and the production station, and its performance directly affects the smoothness of the SPS delivery system.

[0003] With the transformation of the automobile manufacturing industry towards intelligence and flexibility, the production line puts forward higher requirements for the transportation of SPS material trolley: on the one hand, in the multi-model mixed production mode, the delivery frequency of SPS material trolley is significantly improved.

[0004] In the existing automobile assembly plant, the SPS material trolley on-line and off-line is an important link of SPS operation. However, the current SPS material trolley on-line and off-line mostly relies on manual transportation or semi-automatic equipment, which is low in efficiency and uncontrollable in process. Therefore, there is an urgent need for a fully automatic SPS material trolley on-line and off-line device to improve production efficiency and product quality. Therefore, we propose a device for transporting SPS material trolley to solve the problems raised in the above background. SUMMARY

[0005] The purpose of the present application is to provide a device for transporting SPS material trolley to solve the problem of current market SPS material trolley on-line and off-line mostly relying on manual transportation or semi-automatic equipment, which is low in efficiency and uncontrollable in process.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a device for transporting SPS material trolley, comprising an on-line guide mechanism, an off-line guide mechanism, a track foundation, a walking trolley and a carrying clamp, the on-line guide mechanism and the off-line guide mechanism are respectively arranged at both ends of the on-line and off-line path of the SPS material trolley, the track foundation is laid along the on-line and off-line path, the walking trolley is slidingly connected to the track foundation, the carrying clamp is installed at the execution end of the walking trolley, and the on-line guide mechanism, the off-line guide mechanism, the walking trolley and the carrying clamp are electrically connected with the electrical control system.

[0007] Preferably, the upper line guiding mechanism comprises a guiding strip, a detection support, a positioning cylinder and a separation mechanism, the guiding strip is symmetrically arranged on both sides of the AGV trolley traction path, the detection support is fixed on one side of the guiding strip, the positioning cylinder is arranged below the detection support, and the separation mechanism is arranged at the end of the guiding strip.

[0008] With the above structure design, the AGV trolleys pull the front and rear material vehicles to enter along the guiding strip, the detection support detects the position, the positioning cylinder extends to position, and the separation mechanism separates the two vehicles, facilitating separate transportation.

[0009] Preferably, the lower line guiding mechanism comprises a merging mechanism, an unlocking mechanism, a detection support and a positioning cylinder, the merging mechanism is arranged on the rear material vehicle parking path, the front side of the rear material vehicle is provided with a front material vehicle, the unlocking mechanism is arranged beside the merging mechanism running path, and the detection support and the positioning cylinder are consistent with the detection support and the positioning cylinder of the upper line guiding mechanism.

[0010] With the above structure design, the carrying clamp sends the empty material vehicle to the offline area, the detection support detects the position, the positioning cylinder extends to position, the merging mechanism pushes the rear material vehicle to merge with the front material vehicle, and the unlocking mechanism triggers the traction rod to unlock, so that the two vehicles are connected.

[0011] Preferably, the track foundation comprises two parallel steel rails, the top of the steel rail is provided with a groove type guide rail, the guide rail is embedded with a sliding block, the sliding block is fixed to the bottom of the walking trolley, and limit blocks are arranged at both ends of the steel rail.

[0012] With the above structure design, the two parallel steel rails provide a track for the walking trolley, the groove type guide rail cooperates with the sliding block to limit the moving direction, ensuring that the walking trolley stably slides along the path, and the limit blocks at both ends prevent overtravel.

[0013] Preferably, the walking trolley comprises a horizontal driving assembly and a vertical lifting assembly, the horizontal driving assembly comprises a servo motor, a gear and a rack, the rack is fixed to the side surface of the track foundation, the output shaft of the servo motor is connected with the gear, and the gear is engaged with the rack, and the vertical lifting assembly comprises a lifting cylinder and a guide rod, the piston rod of the lifting cylinder is connected with the carrying clamp, and the guide rod is in sliding cooperation with the carrying clamp.

[0014] With the above structure design, in the horizontal driving assembly, the servo motor drives the gear to engage with the rack on the side surface of the track foundation, so as to drive the walking trolley to move horizontally; in the vertical lifting assembly, the lifting cylinder drives the carrying clamp to lift, and the guide rod ensures stable lifting.

[0015] Preferably, the carrying clamp comprises a clamping cylinder and a clamping jaw, the clamping cylinder is a double-shaft cylinder, the piston rods at both ends of the clamping cylinder are connected with two clamping jaws respectively, the inner side of the clamping jaw is provided with an arc-shaped clamping surface, and the surface of the arc-shaped surface is provided with an antiskid pad.

[0016] Adopt the above structure design, the double shaft piston rod of clamping cylinder stretches and contracts to drive the opening and closing of the clamping jaw, the arc clamping surface is attached to the side of the material car, the anti-skid pad enhances the friction force, and stable clamping and carrying of the front material car or the rear material car are realized.

[0017] Preferably, the separating mechanism comprises a separating cylinder and a yoke, the separating cylinder body is hinged to the guide strip, the piston rod is connected to the middle of the yoke, and the yoke is provided with a hook portion at one end.

[0018] Adopt the above structure design, the separating cylinder stretches and contracts to drive the rotation of the yoke, the yoke hook portion hooks the rear material car traction structure to separate it from the front material car, and a spacing for separate carrying is formed.

[0019] Preferably, the merging mechanism comprises a pushing cylinder and a push plate, and the pushing cylinder is fixed to the ground base, the piston rod is connected to the push plate, and the push plate is provided with a buffer layer.

[0020] Adopt the above structure design, the pushing cylinder stretches and contracts to drive the push plate to move, the push plate pushes the rear material car to move towards the front material car, the buffer layer reduces the impact, and the two cars are merged.

[0021] Preferably, the unlocking mechanism comprises an unlocking support and a roller, and the unlocking support is fixed to the ground, the roller is installed on the top end of the unlocking support through a rotating shaft, and the height of the roller corresponds to the unlocking protrusion of the material car traction rod.

[0022] Adopt the above structure design, when the material cars are moved to be merged, the unlocking protrusion of the traction rod contacts the roller on the unlocking support, the roller rotates to trigger the unlocking of the traction rod, so that the front material car and the rear material car can be stably connected.

[0023] Preferably, the upper line guide mechanism further comprises a lifting rod assembly, and the lifting rod assembly is arranged beside the separating mechanism and comprises a lifting rod cylinder and a lifting piece, the piston rod of the lifting rod cylinder is connected to the lifting piece, and the end portion of the lifting piece is provided with a U-shaped groove.

[0024] Adopt the above structure design, the lifting rod cylinder stretches and contracts to drive the lifting piece to lift, the U-shaped groove at the end portion of the lifting piece is sleeved on the traction rod of the rear material car and is lifted, interference of the traction rod with other components is avoided, and the separation and carrying are ensured to be smoothly performed.

[0025] Compared with the prior art, the device for carrying SPS material cars has the following beneficial effects:

[0026] 1. The design scheme realized by the guide mechanism: The upper line guide mechanism guides the direction of the trolley through the guide strip, cooperates with the detection support for accurate detection of the position, the positioning cylinder for stable positioning, and the collaborative action of the separation mechanism and the lifting rod assembly, realizes the orderly separation and reliable positioning of the SPS material trolley in the upper line stage, avoids the deviation or collision of the trolley, and ensures the accurate clamping of the subsequent carrying clamp; the lower line guide mechanism realizes the stable merging and unlocking of the empty trolley through components such as the merging mechanism and the unlocking mechanism, ensures the smooth connection when the trolley is offline, and improves the stability of the online and offline process.

[0027] 2. The design scheme realized by the online and offline equipment: The track foundation provides a stable moving path for the walking trolley, and the horizontal drive assembly of the walking trolley cooperates with the vertical lifting assembly to realize the accurate horizontal transfer and vertical lifting of the trolley; the carrying clamp drives the clamping jaw through the double-shaft cylinder, and realizes the stable clamping of the trolley through the arc-shaped clamping surface and the anti-skid pad; the whole equipment structure is compact, and the components are linked and cooperated, replacing the manual or semi-automatic carrying mode, realizing the full-automatic operation of the SPS material trolley online and offline, and improving the carrying efficiency.

[0028] 3. Electrical control of the whole system: The electrical control system coordinates the actions of the upper line guide mechanism, the lower line guide mechanism, the walking trolley and the carrying clamp, and realizes the accurate triggering and cooperation of each link through the real-time feedback of trolley position, clamping state and other information by the sensor group, ensuring the controllability and continuity of the SPS material trolley online and offline process, reducing manual intervention and reducing the operation failure rate, providing reliable automatic protection for material distribution in large-scale production. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The track foundation structure of the present application is shown in the figure;

[0030] Figure 2 The front trolley and rear trolley position structure of the present application is shown in the figure;

[0031] Figure 3 The carrying clamp structure of the present application is shown in the figure;

[0032] Figure 4 The walking trolley structure of the present application is shown in the figure;

[0033] Figure 5 The positioning cylinder structure of the present application is shown in the figure;

[0034] Figure 6 The unlocking mechanism structure of the present application is shown in the figure;

[0035] Figure 7 The upper line guide mechanism structure of the present application is shown in the figure;

[0036] Figure 8Structure diagram of the lower line guide mechanism of the application.

[0037] In the figure: 1, upper line guide mechanism; 2, lower line guide mechanism; 3, track foundation; 4, walking trolley; 5, carrying clamp; 6, AGV trolley; 7, front trolley; 8, rear trolley; 9, guide bar; 10, detection support; 11, positioning cylinder; 12, separation mechanism; 13, combination mechanism; 14, unlocking mechanism. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0039] Please refer to Figures 1-8The application provides a technical scheme: a device for carrying SPS material trolleys, which comprises an upper line guide mechanism 1, a lower line guide mechanism 2, a track foundation 3, a walking trolley 4, a carrying clamp 5, an AGV trolley 6, a front trolley 7, a rear trolley 8, a guide strip 9, a detection support 10, a positioning cylinder 11, a separation mechanism 12, a merging mechanism 13 and an unlocking mechanism 14, the upper line guide mechanism 1 and the lower line guide mechanism 2 are arranged at the two ends of the upper and lower line paths of the SPS material trolley respectively, the upper line guide mechanism 1 comprises the guide strip 9, the detection support 10, the positioning cylinder 11 and the separation mechanism 12, the guide strip 9 is symmetrically arranged on the two sides of the traction path of the AGV trolley 6, the detection support 10 is fixed to one side of the guide strip 9, the positioning cylinder 11 is arranged below the detection support 10, and the separation mechanism 12 is arranged at the tail end of the guide strip 9, the AGV trolley 6 drags the front trolley 7 and the rear trolley 8 to enter along the guide strip 9, after the detection support 10 detects that the position is correct, the positioning cylinder 11 is extended to position, and the separation mechanism 12 is actuated to separate the two trolleys, so that the trolleys are carried separately, the lower line guide mechanism 2 comprises the merging mechanism 13, the unlocking mechanism 14, the detection support 10 and the positioning cylinder 11, the merging mechanism 13 is arranged on the parking path of the rear trolley 8, the front side of the rear trolley 8 is provided with the front trolley 7, the unlocking mechanism 14 is arranged beside the running path of the merging mechanism 13, the detection support 10 and the positioning cylinder 11 are consistent with the detection support 10 and the positioning cylinder 11 of the upper line guide mechanism 1 in structure, the carrying clamp 5 sends the empty trolley to the lower line area, after the detection support 10 detects that the position is correct, the positioning cylinder 11 is extended to position, the merging mechanism 13 pushes the rear trolley 8 to merge with the front trolley 7, the unlocking mechanism 14 triggers the traction rod to be unlocked, so that the two trolleys are connected, the track foundation 3 is laid along the upper and lower line paths, the walking trolley 4 is slidably connected to the track foundation 3, the track foundation 3 comprises two parallel steel rails, the top of the steel rail is provided with a groove type guide rail, the guide rail is embedded into a sliding block, the sliding block is fixed to the bottom of the walking trolley 4, and limit blocks are arranged at the two ends of the steel rail, the two parallel steel rails provide a track for the walking trolley 4, the groove type guide rail cooperates with the sliding block to limit the moving direction, the stable sliding of the walking trolley 4 along the path is ensured, and the limit blocks at the two ends prevent overtravel, the carrying clamp 5 is installed at the execution end of the walking trolley 4, the walking trolley 4 comprises a horizontal driving assembly and a vertical lifting assembly, the horizontal driving assembly comprises a servo motor, a gear and a rack, the rack is fixed to the side surface of the track foundation 3, the output shaft of the servo motor is connected with the gear, and the gear is engaged with the rack, the vertical lifting assembly comprises a lifting cylinder and a guide rod, the piston rod of the lifting cylinder is connected with the carrying clamp 5, and the guide rod is slidably connected with the carrying clamp 5, in the horizontal driving assembly, the servo motor drives the gear to be engaged with the rack on the side surface of the track foundation 3, so that the walking trolley 4 is driven to move horizontally.In the vertical lifting assembly, the lifting cylinder drives the carrying clamp 5 to lift, and the guide rod ensures stable lifting. The upper line guide mechanism 1, the lower line guide mechanism 2, the walking trolley 4 and the carrying clamp 5 are electrically connected with the electrical control system. The carrying clamp 5 includes a clamping cylinder and a clamping jaw, and the clamping cylinder is a double-shaft cylinder, the two end piston rods of which are connected with the two clamping jaws respectively. An arc-shaped clamping surface is arranged on the inner side of the clamping jaw, and an anti-skid pad is arranged on the arc-shaped surface. The double-shaft piston rod of the clamping cylinder is extended and retracted to drive the clamping jaw to open and close. The arc-shaped clamping surface is attached to the side surface of the material cart, and the anti-skid pad enhances the friction force, thereby realizing stable clamping and carrying of the front material cart 7 or the rear material cart 8.

[0040] The separation mechanism 12 includes a separation cylinder and a yoke, the cylinder body of the separation cylinder is hinged to the guide strip 9, the piston rod is connected with the middle part of the yoke, one end of the yoke is provided with a hook part, the separation cylinder is extended and retracted to drive the yoke to rotate, the hook part of the yoke hooks the rear material cart 8 traction structure, separates the rear material cart 8 from the front material cart 7, and forms a spacing for separate carrying.

[0041] The merging mechanism 13 includes a pushing cylinder and a push plate, and the pushing cylinder is fixed to the ground base, the piston rod is connected with the push plate, the surface of the push plate is provided with a buffer layer, the pushing cylinder is extended and retracted to drive the push plate to move, the push plate pushes the rear material cart 8 to move towards the front material cart 7, the buffer layer reduces the impact of collision, and the two carts are merged.

[0042] The unlocking mechanism 14 includes an unlocking bracket and a roller, and the unlocking bracket is fixed to the ground, the roller is installed on the top end of the unlocking bracket through a rotating shaft, the height of the roller corresponds to the unlocking protrusion of the material cart traction rod, when the material carts are merged and moved, the unlocking protrusion of the traction rod contacts the roller on the unlocking bracket, the roller rotates to trigger the unlocking of the traction rod, so that the front material cart 7 and the rear material cart 8 can be stably connected.

[0043] The upper line guide mechanism 1 further includes a lifting rod assembly, and the lifting rod assembly is arranged beside the separation mechanism 12, including a lifting rod cylinder and a lifting piece, the piston rod of the lifting rod cylinder is connected with the lifting piece, the end part of the lifting piece is provided with a U-shaped groove, the lifting rod cylinder is extended and retracted to drive the lifting piece to lift, the U-shaped groove of the end part of the lifting piece sleeves the traction rod of the rear material cart 8 and lifts it, avoiding interference with other components, and ensuring smooth separation and carrying.

[0044] Working principle: when using the device for carrying SPS material trolley, the AGV trolley 6 drags the front trolley 7 and the rear trolley 8 along the guide strip 9 of the upper line guide mechanism 1 into the upper line area, after the detection support 10 detects that the trolley is in place, the positioning cylinder 11 extends to position the two trolleys, the separation mechanism 12 acts-the separation cylinder drives the yoke to rotate, the hook part hooks the rear trolley 8 traction structure, separates the front trolley 7 from the rear trolley 8, and at the same time, the lifting rod assembly of the upper line guide mechanism 1-lifting rod cylinder drives the lifting piece to rise and lift the rear trolley 8 traction rod to avoid interference; after the electrical control system receives the in-place signal, the walking trolley 4 moves to the top of the trolley along the groove-shaped guide rail of the track foundation 3, the vertical lifting assembly of the walking trolley 4-lifting cylinder drives the carrying clamp 5 to descend, so that the carrying clamp 5 is lowered to the material taking height, the clamping cylinder drives the clamping jaw to close, and the trolley is clamped stably through the arc clamping surface and the anti-skid pad; then the horizontal drive assembly of the walking trolley 4-servo motor drives the gear and the rack to engage, drives it to move along the track foundation 3 to the top of the line body, the vertical lifting assembly lowers to place the trolley on the line body slide, and the clamping jaw opens to complete the upper line.

[0045] When unloading, the walking trolley 4 drives the carrying clamp 5 to clamp the empty front trolley 7 and the rear trolley 8 from the line body, moves to the lower line guide mechanism 2 area and releases; after the detection support 10 detects that the trolley is in place, the positioning cylinder 11 extends to position, the merging mechanism 13-push cylinder drives the push plate to move the rear trolley 8 to the front trolley 7, and during the movement process, the unlocking protrusion of the rear trolley 8 traction rod contacts with the roller of the unlocking mechanism 14 to trigger the unlocking of the traction rod, and finally the two trolleys are merged; the AGV trolley 6 drives into and drags the merged empty trolley to leave, completing a carrying cycle. The whole process is coordinated by the electrical control system to realize automatic operation, so as to complete a series of work. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for transporting SPS material trolleys, comprising an upper guide mechanism (1), a lower guide mechanism (2), a track base (3), a traveling trolley (4), and a transport fixture (5), characterized in that: The upper guide mechanism (1) and the lower guide mechanism (2) are respectively set at both ends of the upper and lower paths of the SPS material trolley. The track foundation (3) is laid along the upper and lower paths. The traveling trolley (4) is slidably connected to the track foundation (3). The handling clamp (5) is installed at the execution end of the traveling trolley (4). The upper guide mechanism (1), the lower guide mechanism (2), the traveling trolley (4) and the handling clamp (5) are electrically connected to the electrical control system. The online guiding mechanism (1) includes a guide bar (9), a detection bracket (10), a positioning cylinder (11), and a separation mechanism (12). The guide bar (9) is symmetrically arranged on both sides of the traction path of the AGV trolley (6), the detection bracket (10) is fixed to one side of the guide bar (9), the positioning cylinder (11) is installed below the detection bracket (10), and the separation mechanism (12) is located at the end of the guide bar (9). The offline guide mechanism (2) includes a merging mechanism (13), an unlocking mechanism (14), a detection bracket (10), and a positioning cylinder (11). The merging mechanism (13) is located on the parking path of the rear material car (8), and a front material car (7) is located on the front side of the rear material car (8). The unlocking mechanism (14) is installed next to the travel path of the merging mechanism (13). The detection bracket (10) and the positioning cylinder (11) have the same structure as the detection bracket (10) and the positioning cylinder (11) of the online guide mechanism (1). The separation mechanism (12) includes a separation cylinder and a fork. The cylinder body of the separation cylinder is hinged to the guide bar (9), the piston rod is connected to the middle of the fork, and a hook is provided at one end of the fork. The extension and retraction of the separation cylinder drives the fork to rotate, and the hook of the fork hooks onto the traction structure of the rear material car (8) to separate it from the front material car (7). The unlocking mechanism (14) includes an unlocking bracket and a roller. The unlocking bracket is fixed to the ground, and the roller is mounted on the top of the unlocking bracket via a rotating shaft. The height of the roller corresponds to the unlocking protrusion of the material cart traction rod.

2. The equipment for transporting SPS material carts according to claim 1, characterized in that: The track foundation (3) includes two parallel steel rails. The top of the steel rails is provided with a grooved guide rail. A sliding block is embedded in the guide rail. The sliding block is fixed to the bottom of the traveling trolley (4). Limiting blocks are provided at both ends of the steel rails.

3. The device for transporting SPS material carts according to claim 1, characterized in that: The traveling trolley (4) includes a horizontal drive assembly and a vertical lifting assembly. The horizontal drive assembly includes a servo motor, a gear and a rack. The rack is fixed to the side of the track base (3). The output shaft of the servo motor is connected to the gear. The gear meshes with the rack. The vertical lifting assembly includes a lifting cylinder and a guide rod. The piston rod of the lifting cylinder is connected to the transport clamp (5). The guide rod slides with the transport clamp (5).

4. The device for transporting SPS material carts according to claim 1, characterized in that: The transport fixture (5) includes a clamping cylinder and a jaw, and the clamping cylinder is a dual-axis cylinder with piston rods at both ends connected to two jaws respectively. The inner side of the jaw is provided with an arc-shaped clamping surface, and the surface of the arc-shaped surface is provided with an anti-slip pad.

5. The device for transporting SPS material carts according to claim 3, characterized in that: The merging mechanism (13) includes a push cylinder and a push plate. The push cylinder is fixed to the ground foundation, the piston rod is connected to the push plate, and the surface of the push plate is provided with a buffer layer.

6. The equipment for transporting SPS material carts according to claim 2, characterized in that: The upper guide mechanism (1) also includes a lifting rod assembly, which is located next to the separation mechanism (12). The lifting rod assembly includes a lifting rod cylinder and a paddle. The piston rod of the lifting rod cylinder is connected to the paddle, and the end of the paddle is provided with a U-shaped groove.

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