Fixture switching three-dimensional warehouse

Abstract

The utility model discloses a three-dimensional warehouse capable of switching fixtures, belongs to the technical field of automobile welding, and aims to solve the problem that once a lifting mechanism breaks down or is maintained, the three-dimensional warehouse cannot normally store and take out tool fixtures. Comprising a lifting frame and a lifting tray, the lifting tray slides vertically along the lifting frame, the left end and the right end of the top of the lifting frame are each provided with a chain wheel set, a first lifting gear motor and a second lifting gear motor drive the two chain wheel sets to rotate in a one-to-one correspondence mode, and each chain wheel set is meshed with four open-loop chains at the same time; the four open-loop chains are connected with the four corners of the lifting tray respectively, one of the first lifting gear motor and the second lifting gear motor is standby, and the other gear motor can be used for lifting the tool clamp when one gear motor breaks down, so that the risk of long-time shutdown due to the fault of the gear motor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile welding production, and particularly relates to a fixture switching stereoscopic warehouse. Background Technique

[0002] At present, most automobile factory welding production lines need to carry out flexible switching production of multiple vehicle models, and often use sliding tables to switch vehicle model tooling fixtures. However, the traditional tooling fixture switching system occupies a large area. In order to add more vehicle model tooling fixtures in the same area, caching the tooling fixtures in the form of a stereoscopic warehouse so that the production line can accommodate more vehicle models is an effective way to solve the problem.

[0003] The stereoscopic warehouse is provided with a lifting mechanism for caching the tooling fixtures in the second-layer storage location. Once the lifting mechanism fails or is under maintenance, the stereoscopic warehouse cannot normally store and retrieve the tooling fixtures, making it difficult to meet the production rhythm of the welding workshop production line of the vehicle factory. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixture switching stereoscopic warehouse to solve the problem that once the lifting mechanism fails or is under maintenance, the stereoscopic warehouse cannot normally store and retrieve the tooling fixtures. The technical solution adopted by the utility model is as follows:

[0005] A fixture switching stereoscopic warehouse includes a stereoscopic steel framework, a lifting system, a storage location sliding table assembly, and an inbound and outbound sliding table assembly; the stereoscopic steel framework includes a lifting frame, and both the left and right sides of the upper part of the lifting frame are connected with second-layer frameworks;

[0006] The lifting system includes a lifting tray. Main body columns are provided at the four corners of the lifting frame. Lifting guide rails are vertically provided on the main body columns. Lifting sliders are provided at the four corners of the lifting tray. The four lifting sliders are in sliding fit with the four lifting guide rails one by one. Unpowered roller tracks are arranged horizontally on the lifting tray. A first double sprocket and a first positioning sprocket are respectively rotatably arranged at the top of the main body column at the left front end. A second double sprocket and a second positioning sprocket are respectively rotatably arranged at the top of the main body column at the left rear end. A third double sprocket and a third positioning sprocket are respectively rotatably arranged at the top of the main body column at the right front end. A fourth double sprocket and a fourth positioning sprocket are respectively rotatably arranged at the top of the main body column at the right rear end. The first double sprocket and the second double sprocket are connected by a universal shaft. The third double sprocket and the fourth double sprocket are connected by a universal shaft. The first double sprocket is coaxially connected with a first driven sprocket. The third double sprocket is coaxially connected with a second driven sprocket. A first lifting reduction motor and a second lifting reduction motor are provided on the lifting frame. A first driving sprocket is sleeved on the output shaft of the first lifting reduction motor. A second driving sprocket is sleeved on the output shaft of the second lifting reduction motor. The first driving sprocket and the first driven sprocket are connected by a closed chain loop. The second driving sprocket and the second driven sprocket are connected by a closed chain loop;

[0007] One end of the first open-loop long chain is connected to the right front end of the lifting tray. The other end of the first open-loop long chain sequentially bypasses a set of chain teeth of the third positioning sprocket and the first double sprocket upward and then droops to be connected to the first counterweight assembly. One end of the first open-loop short chain is connected to the left front end of the lifting tray. The other end of the first open-loop short chain bypasses the other set of chain teeth of the first double sprocket upward and then droops to be connected to the first counterweight assembly;

[0008] One end of the second open-loop long chain is connected to the right rear end of the lifting tray. The other end of the second open-loop long chain sequentially bypasses a set of chain teeth of the fourth positioning sprocket and the second double sprocket upward and then droops to be connected to the second counterweight assembly. One end of the second open-loop short chain is connected to the left rear end of the lifting tray. The other end of the second open-loop short chain bypasses the other set of chain teeth of the second double sprocket upward and then droops to be connected to the second counterweight assembly;

[0009] One end of the third open-loop long chain is connected to the left front end of the lifting tray. The other end of the third open-loop long chain sequentially bypasses a set of chain teeth of the first positioning sprocket and the third double sprocket upward and then droops to be connected to the third counterweight assembly. One end of the third open-loop short chain is connected to the right front end of the lifting tray. The other end of the third open-loop short chain bypasses the other set of chain teeth of the third double sprocket upward and then droops to be connected to the third counterweight assembly;

[0010] One end of the fourth open-loop long chain is connected to the left rear end of the lifting tray. The other end of the fourth open-loop long chain sequentially bypasses a set of chain teeth of the second positioning sprocket and the fourth double sprocket upward and then droops to be connected to the fourth counterweight assembly. One end of the fourth open-loop short chain is connected to the right rear end of the lifting tray. The other end of the fourth open-loop short chain bypasses the other set of chain teeth of the fourth double sprocket upward and then droops to be connected to the fourth counterweight assembly;

[0011] Above the second - layer frame body, a second - layer buffer library is formed, and between the second - layer frame body and the ground below, a first - layer buffer library is formed. Both the second - layer buffer library and the first - layer buffer library are provided with bin slide - table components. The bin slide - table component includes a bin slide - table base arranged left and right in the length direction. A towing head is slidably arranged along the length direction of the bin slide - table base. A rotatable screw rod is arranged along the length direction on the bin slide - table base. The towing head is in threaded cooperation with the screw rod. One end of the screw rod is coaxially connected with a driven pulley. A towing motor is arranged on the bin slide - table base. A driving pulley is sleeved on the output shaft of the towing motor. The driving pulley and the driven pulley are connected by a synchronous belt. The bin slide - table base is provided with a non - powered roller conveyor arranged left and right. Between the bin slide - table components in the two second - layer buffer libraries is the second - layer fixture switching station. Between the bin slide - table components in the two first - layer buffer libraries is the first - layer fixture switching station. When the lifting tray slides to the second - layer fixture switching station, the non - powered roller conveyor of the lifting tray is aligned and connected with the non - powered roller conveyors of the bin slide - table components in the two second - layer buffer libraries. When the lifting tray slides to the first - layer fixture switching station, the non - powered roller conveyor of the lifting tray is aligned and connected with the non - powered roller conveyors of the bin slide - table components in the two first - layer buffer libraries;

[0012] The in - and - out bin slide - table component includes an in - and - out slide - table base arranged front and back in the length direction. A slide - table trolley is slidably arranged along the length direction of the in - and - out slide - table base. The top of the slide - table trolley is provided with a non - powered roller conveyor arranged left and right. An inclined rack is arranged along the length direction on the in - and - out slide - table base. An in - and - out deceleration motor is arranged on the slide - table trolley. An inclined gear is sleeved on the output shaft of the in - and - out deceleration motor. The inclined gear meshes with the inclined rack. The rear end of the in - and - out slide - table base extends into the bottom of the lifting frame. The front end of the in - and - out bin slide - table component is the operation station. When the slide - table trolley slides backward to the first - layer fixture switching station, the non - powered roller conveyor of the slide - table trolley is aligned and cooperates with the non - powered roller conveyors of the bin slide - table components in the two first - layer buffer libraries.

[0013] Further, there are two fixture positioning cylinders on the slide - table trolley. There are two positioning sleeves on the tooling fixture. The piston rods of the two fixture positioning cylinders on the slide - table trolley are respectively in pin - joint cooperation or separation with the two positioning sleeves.

[0014] Further, there are two fixture positioning cylinders on the lifting tray. The piston rods of the two fixture positioning cylinders on the lifting tray are respectively in pin - joint cooperation or separation with the two positioning sleeves.

[0015] Further, first positioning ears are installed at both the operation station of the in - and - out slide - table base and the first - layer fixture switching station. A trolley positioning cylinder is arranged on the slide - table trolley. When the slide - table trolley moves to the operation station or the first - layer fixture switching station, the piston rod of the trolley positioning cylinder is in pin - joint cooperation with the corresponding first positioning ear.

[0016] Further, a fixture identification sensor and a second occupancy sensor are provided on the sliding table trolley.

[0017] Further, a fixture identification sensor and a first occupancy sensor are provided on the storage position sliding table base.

[0018] Further, the main body column is a square tube member, and the first counterweight assembly, the second counterweight assembly, the third counterweight assembly and the fourth counterweight assembly are correspondingly arranged in four main body columns.

[0019] Further, a connection platform is provided at the upper part of the lifting frame. The connection platform is connected to the floors of two second-layer frame bodies to form a second-layer platform, and a fence is provided around the second-layer platform.

[0020] Further, the ground is connected to the second-layer platform by a ladder.

[0021] Further, Z-direction positioning units are provided at the four corners of the lifting tray. The Z-direction positioning unit includes a pressing base, a pressing cylinder and a pressing arm. The middle of the pressing arm is hinged to the pressing base, the pressing cylinder is hinged to the pressing base, the piston rod of the pressing cylinder is hinged to one end of the pressing arm, a pressing block is provided at the other end of the pressing arm, and a second positioning ear is provided at the upper part of the main body column. When the lifting tray slides to the second-layer fixture switching station, the piston rod of the pressing cylinder extends, and the pressing block presses on the corresponding second positioning ear. When the piston rod of the pressing cylinder retracts, the pressing block separates from the corresponding second positioning ear.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] Through the setting mode of the lifting system in the present utility model, the lifting of the lifting tray can be independently driven by the first lifting reduction motor and the second lifting reduction motor. The first lifting reduction motor and the second lifting reduction motor are in a standby mode. When one of the reduction motors fails, the lifting of the tooling fixture can be carried out by the other reduction motor, thereby reducing the risk of long-term downtime due to the failure of the reduction motor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 is a front view of the present utility model;

[0026] Figure 3 is a schematic diagram of the cooperation between the inbound and outbound sliding table assembly and the storage position sliding table assembly of the first-layer buffer library;

[0027] Figure 4 is an axonometric view of the lifting system arranged on the lifting frame;

[0028] Figure 5It is the front view of the lifting system installed on the lifting frame;

[0029] Figure 6 It is the axonometric view of the upgrade system;

[0030] Figure 7 It is the layout diagram of each chain;

[0031] Figure 8 It is the structural schematic diagram of the lifting tray;

[0032] Figure 9 It is the schematic diagram of the tooling fixture cached on the storage location slide assembly;

[0033] Figure 10 It is the structural schematic diagram of the slide trolley;

[0034] Figure 11 It is the structural schematic diagram of the Z - direction positioning unit.

[0035] In the figure, 1. Lifting frame, 11. Main body column, 12. Second - layer frame body, 13. First - layer buffer library, 14. Second - layer buffer library, 2. In - and - out storage slide assembly, 21. In - and - out slide base, 22. Unpowered roller conveyor, 23. Helical gear, 24. In - and - out storage reduction motor, 25. Slide trolley, 26. Trolley positioning cylinder, 27. Second occupancy sensor, 28. Fixture positioning cylinder, 29. Helical rack, 3. Storage location slide assembly, 31. Storage location slide base, 32. Tractor head, 33. Tractor wheel, 34. Driven pulley, 35. Driving pulley, 36. Tractor motor, 37. Fixture identification sensor, 38. Screw, 39. First occupancy sensor, 4. Lifting system, 41. Lifting tray, 42. Z - direction positioning unit, 43. Lifting slider, 44. Lifting guide rail, 45. First lifting reduction motor, 46. First driving sprocket, 47. First driven sprocket, 48. Cardan shaft, 49. Second positioning ear, 410. Second driven sprocket, 411. Second lifting reduction motor, 412. First counterweight assembly, 413. First double sprocket, 414. First positioning sprocket, 415. Third positioning sprocket, 416. Third double sprocket, 417. Third counterweight assembly, 418. Third open - loop long chain, 419. First open - loop short chain, 420. Fourth open - loop long chain, 421. Second open - loop short chain, 422. Second counterweight assembly, 423. Second double sprocket, 424. Second positioning sprocket, 425. Second open - loop long chain, 426. Fourth positioning sprocket, 427. Fourth double sprocket, 428. Fourth open - loop short chain, 429. Fourth counterweight assembly, 430. Second driving sprocket, 431. Third open - loop short chain, 432. First open - loop long chain, 433. Pressing base, 434. Pressing cylinder, 435. Pressing arm, 436. Pressing block, 5. Fence, 6. Tooling fixture, 61. Channel - shaped member. Detailed implementation mode

[0036] To make the objectives, technical solutions, and advantages of the present utility model clearer and more explicit, the present utility model will be described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model.

[0037] The connections referred to in the present utility model are divided into fixed connections and detachable connections. The fixed connections, that is, non-detachable connections, include but are not limited to conventional fixed connection methods such as hemming connections, rivet connections, bonding connections, and welding connections. The detachable connections include but are not limited to conventional disassembly methods such as bolt connections, snap connections, pin connections, and hinge connections. When the specific connection method is not clearly defined, it is defaulted that at least one connection method can be found among the existing connection methods to achieve this function, and those skilled in the art can select according to their needs. For example: select welding connection for fixed connection and bolt connection for detachable connection.

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0039] Embodiment: As Figures 1 to 11 shown, a fixture switching automated storage and retrieval system includes a three-dimensional steel framework, a lifting system 4, a storage position sliding table assembly 3, and an inbound and outbound sliding table assembly 2; the three-dimensional steel framework includes a lifting frame 1, and two-story frames 12 are connected to both the upper left and right sides of the lifting frame 1;

[0040] The lifting system 4 includes a lifting tray 41. Main body columns 11 are provided at the four corners of the lifting frame 1. Lifting guide rails 44 are vertically provided on the main body columns 11. Lifting sliders 43 are provided at the four corners of the lifting tray 41. The four lifting sliders 43 are in sliding fit with the four lifting guide rails 44 one by one. Unpowered roller tracks 22 are provided on the lifting tray 41 in a left-right arrangement. A first double sprocket 413 and a first positioning sprocket 414 are respectively rotatably provided at the top of the main body column 11 at the left front end. A second double sprocket 423 and a second positioning sprocket 424 are respectively rotatably provided at the top of the main body column 11 at the left rear end. A third double sprocket 416 and a third positioning sprocket 415 are respectively rotatably provided at the top of the main body column 11 at the right front end. A fourth double sprocket 427 and a fourth positioning sprocket 426 are respectively rotatably provided at the top of the main body column 11 at the right rear end. The first double sprocket 413 and the second double sprocket 423 are connected by a universal shaft 48. The third double sprocket 416 and the fourth double sprocket 427 are connected by a universal shaft 48. The first double sprocket 413 is coaxially connected with a first driven sprocket 47. The third double sprocket 416 is coaxially connected with a second driven sprocket 410. A first lifting reduction motor 45 and a second lifting reduction motor 411 are provided on the lifting frame 1. A first driving sprocket 46 is sleeved on the output shaft of the first lifting reduction motor 45. A second driving sprocket 430 is sleeved on the output shaft of the second lifting reduction motor 411. The first driving sprocket 46 and the first driven sprocket 47 are connected by a closed chain loop. The second driving sprocket 430 and the second driven sprocket 410 are connected by a closed chain loop;

[0041] One end of a first open-loop long chain 432 is connected to the right front end of the lifting tray 41. The other end of the first open-loop long chain 432 sequentially bypasses a set of chain teeth of the third positioning sprocket 415 and the first double sprocket 413 upwards and then droops to be connected to a first counterweight assembly 412. One end of a first open-loop short chain 419 is connected to the left front end of the lifting tray 41. The other end of the first open-loop short chain 419 bypasses another set of chain teeth of the first double sprocket 413 upwards and then droops to be connected to the first counterweight assembly 412;

[0042] One end of a second open-loop long chain 425 is connected to the right rear end of the lifting tray 41. The other end of the second open-loop long chain 425 sequentially bypasses a set of chain teeth of the fourth positioning sprocket 426 and the second double sprocket 423 upwards and then droops to be connected to a second counterweight assembly 422. One end of a second open-loop short chain 421 is connected to the left rear end of the lifting tray 41. The other end of the second open-loop short chain 421 bypasses another set of chain teeth of the second double sprocket 423 upwards and then droops to be connected to the second counterweight assembly 422;

[0043] One end of the third open-loop long chain 418 is connected to the left front end of the lifting tray 41. The other end of the third open-loop long chain 418 sequentially bypasses a set of chain teeth of the first positioning sprocket 414 and the third double sprocket 416 upward, and then droops and is connected to the third counterweight assembly 417. One end of the third open-loop short chain 431 is connected to the right front end of the lifting tray 41. The other end of the third open-loop short chain 431 bypasses another set of chain teeth of the third double sprocket 416 upward, and then droops and is connected to the third counterweight assembly 417;

[0044] One end of the fourth open-loop long chain 420 is connected to the left rear end of the lifting tray 41. The other end of the fourth open-loop long chain 420 sequentially bypasses a set of chain teeth of the second positioning sprocket 424 and the fourth double sprocket 427 upward, and then droops and is connected to the fourth counterweight assembly 429. One end of the fourth open-loop short chain 428 is connected to the right rear end of the lifting tray 41. The other end of the fourth open-loop short chain 428 bypasses another set of chain teeth of the fourth double sprocket 427 upward, and then droops and is connected to the fourth counterweight assembly 429;

[0045] A second-layer buffer storage 14 is formed above the second-layer frame body 12, and a first-layer buffer storage 13 is formed between the second-layer frame body 12 and the ground below. The second-layer buffer storage 14 and the first-layer buffer storage 13 are both provided with a bin slide table assembly 3. The bin slide table assembly 3 includes a bin slide table base 31 arranged left and right in the length direction. The towing head 32 is slidably arranged along the length direction of the bin slide table base 31. A rotatable screw rod 38 is arranged along the length direction on the bin slide table base 31. The towing head 32 is in threaded cooperation with the screw rod 38. One end of the screw rod 38 is coaxially connected to the driven belt pulley 34. A towing motor 36 is arranged on the bin slide table base 31. A driving belt pulley 35 is sleeved on the output shaft of the towing motor 36. The driving belt pulley 35 and the driven belt pulley 34 are connected by a synchronous belt. The bin slide table base 31 is provided with a non-powered roller path 22 arranged left and right. Between the bin slide table assemblies 3 in the two second-layer buffer storages 14 is a second-layer fixture switching station. Between the bin slide table assemblies 3 in the two first-layer buffer storages 13 is a first-layer fixture switching station. When the lifting tray 41 slides to the second-layer fixture switching station, the non-powered roller path 22 of the lifting tray 41 is aligned and connected with the non-powered roller paths 22 of the bin slide table assemblies 3 in the two second-layer buffer storages 14. When the lifting tray 41 slides to the first-layer fixture switching station, the non-powered roller path 22 of the lifting tray 41 is aligned and connected with the non-powered roller paths 22 of the bin slide table assemblies 3 in the two first-layer buffer storages 13;

[0046] The in-out slide table assembly 2 includes an in-out slide table base 21 arranged front and back in the length direction. A slide table carriage 25 is slidably arranged along the length direction of the in-out slide table base 21. A non-powered roller conveyor 22 arranged left and right is provided at the top of the slide table carriage 25. An inclined rack 29 is arranged along the length direction on the in-out slide table base 21. An in-out deceleration motor 24 is provided on the slide table carriage 25. A helical gear 23 is sleeved on the output shaft of the in-out deceleration motor 24. The helical gear 23 meshes with the inclined rack 29. The rear end of the in-out slide table base 21 extends into the bottom of the lifting frame 1. The front end of the in-out slide table assembly 2 is an operation station. When the slide table carriage 25 slides backward to the first-layer fixture switching station, the non-powered roller conveyor 22 of the slide table carriage 25 is aligned and cooperated with the non-powered roller conveyors 22 of the two in-warehouse position slide table assemblies 3 in the first-layer buffer warehouse 13.

[0047] The utility model is a three-dimensional library for fixture switching with four storage positions, which can realize fixture switching between the operating station and the first-layer buffer library 13, and fixture switching between the first-layer buffer library 13 and the second-layer buffer library 14. Channel steel-shaped members 61 are provided on both the left and right sides of the tooling fixture 6. The channel steel-shaped members 61 are arranged front and back with the opening facing downward. A traction wheel 33 is provided on the traction head 32. Before the skid carriage 25 stores the tooling fixture 6, the traction head 32 of the skid component 3 in the storage position in the first-layer buffer library 13 slides to one end close to the first-layer fixture switching station. The skid carriage 25 drives the tooling fixture 6 to slide into the first-layer fixture switching station, and the traction wheel 33 slides into the groove of the corresponding channel steel-shaped member 61. The traction head 32 slides in the direction away from the first-layer fixture switching station to pull the tooling fixture 6 into the corresponding first-layer buffer library 13. Conversely, the tooling fixture 6 in the first-layer buffer library 13 can be taken out. When switching the tooling fixture 6 in the first-layer buffer library 13 to the second-layer buffer library 14, the lifting tray 41 first descends to the first-layer fixture switching station. The skid component 3 in the storage position in the first-layer buffer library 13 pushes the tooling fixture 6 onto the lifting tray 41 in the first-layer fixture switching station through the traction head 32. The lifting system 4 controls the lifting tray 41 to rise, and the tooling fixture 6 can be separated from the corresponding traction head 32. The lifting tray 41 first rises to the highest position. The traction head 32 of the skid component 3 in the storage position in the second-layer buffer library 14 slides to one end close to the second-layer fixture switching station. When the lifting tray 41 descends to the second-layer fixture switching station again, the traction wheel 33 of the corresponding traction head 32 can be inserted into the groove of the corresponding channel steel-shaped member 61 of the tooling fixture 6. The traction head 32 slides to the side away from the second-layer fixture switching station to pull the tooling fixture 6 into the second-layer buffer library 14. Conversely, the switching of the tooling fixture 6 from the second-layer buffer library 14 to the first-layer buffer library 13 can be realized. The traction wheel 33 and the channel steel-shaped member 61 can traction the tooling fixture 6, and the traction head 32 can realize automatic combination and separation through the traction wheel 33 and the channel steel-shaped member 61. Under the action of power, it can slide along the length direction of the skid base 31 of the storage position to pull the tooling fixture 6 into or out of the buffer storage position;During use, first ensure that the secondary buffer library 14 is full. There is a set of tooling fixtures 6 on the sliding table trolley 25. One of the two primary buffer libraries 13 is kept empty. When the tooling fixtures 6 in the secondary buffer library 14 are needed, for example, when the fixtures in the right secondary buffer library 14 are required and the right primary buffer library 13 is made empty, first, the tooling fixtures 6 needed in the right secondary buffer library 14 are imported onto the empty position of the right primary buffer library 13 through the lifting tray 41. Secondly, another set of tooling fixtures 6 in the left primary buffer library 13 is imported into the empty position of the right secondary buffer library 14. Thirdly, the sliding table trolley 25 with the tooling fixtures 6 on it enters the primary fixture switching station. The towing head 32 at the left primary buffer library 13 position pulls the tooling fixtures 6 on the sliding table trolley 25 into the storage position of the left primary buffer library 13. Then, the towing head 32 of the right primary buffer library 13 pushes the tooling fixtures 6 in the right primary buffer library 13 onto the sliding table trolley 25. The sliding table trolley 25 moves to the operation station, and the switching of the tooling fixtures 6 can be completed.

[0048] Through the setting method of the lifting system 4 in the present utility model, it can meet the independent driving of the lifting of the lifting tray 41 by the first lifting reduction motor 45 and the second lifting reduction motor 411. The first lifting reduction motor 45 and the second lifting reduction motor 411 are in a standby mode. When one of the reduction motors fails, the lifting of the tooling fixtures 6 can be carried out by the other reduction motor, thereby reducing the risk of long-term shutdown due to the failure of the reduction motor.

[0049] There are two fixture positioning cylinders 28 on the sliding table trolley 25. There are two positioning sleeves on the tooling fixtures 6. The piston rods of the two fixture positioning cylinders 28 on the sliding table trolley 25 are respectively pin-connected and mated or separated with the two positioning sleeves to ensure the relative position when the tooling fixtures 6 are mated with the sliding table trolley 25.

[0050] There are two fixture positioning cylinders 28 on the lifting tray 41. The piston rods of the two fixture positioning cylinders 28 on the lifting tray 41 are respectively pin-connected and mated or separated with the two positioning sleeves to ensure the relative position when the tooling fixtures 6 are mated with the lifting tray 41.

[0051] First positioning ears are installed at both the operation station where the sliding table base 21 enters and exits and the primary fixture switching station. There is a trolley positioning cylinder 26 on the sliding table trolley 25. When the sliding table trolley 25 moves to the operation station or the primary fixture switching station, the piston rod of the trolley positioning cylinder 26 is pin-connected and mated with the corresponding first positioning ear to ensure the precise positioning of the trolley at the operation station or the primary fixture switching station.

[0052] There are a fixture identification sensor 37 and a second occupancy sensor 27 on the sliding table trolley 25, which are used to identify different models of tooling fixtures 6 and judge whether there are tooling fixtures 6 on the sliding table trolley 25.

[0053] A jig identification sensor 37 and a first occupancy sensor 39 are provided on the storage location slide base 31, which are used to identify different types of tooling jigs 6 and determine whether there is a tooling jig 6 in the corresponding first-layer buffer library 13 or second-layer buffer library 14.

[0054] The main body column 11 is a square pipe member, and the first counterweight assembly 412, the second counterweight assembly 422, the third counterweight assembly 417 and the fourth counterweight assembly 429 are correspondingly arranged in the four main body columns 11.

[0055] The upper part of the lifting frame 1 is provided with a connecting platform, and the connecting platform is connected to the floors of the two second-layer frame bodies 12 to form a second-layer platform, and a fence 5 is provided around the second-layer platform.

[0056] The ground is connected to the second-layer platform by a ladder.

[0057] Z-direction positioning units 42 are provided at the four corners of the lifting tray 41. The Z-direction positioning unit 42 includes a pressing base 433, a pressing cylinder 434 and a pressing arm 435. The middle part of the pressing arm 435 is hinged to the pressing base 433, the pressing cylinder 434 is hinged to the pressing base 433, the piston rod of the pressing cylinder 434 is hinged to one end of the pressing arm 435, and a pressing block 436 is provided at the other end of the pressing arm 435. A second positioning ear 49 is provided at the upper part of the main body column 11. When the lifting tray 41 slides to the second-layer jig switching station, the piston rod of the pressing cylinder 434 extends, and the pressing block 436 presses on the corresponding second positioning ear 49 to prevent the lifting tray 41 from falling. When the piston rod of the pressing cylinder 434 retracts, the pressing block 436 is separated from the corresponding second positioning ear 49, so that the lifting tray 41 can descend smoothly.

[0058] The above embodiments are only illustrative descriptions of the present invention, and do not limit its protection scope. Those skilled in the art can also make partial changes to it, as long as they do not exceed the spiritual essence of the present invention, they are within the protection scope of the present invention.

Claims

1. A fixture switching stereoscopic warehouse, characterized in that: It comprises a three-dimensional steel frame, a lifting system (4), a storage position slide assembly (3) and an in-and-out storage slide assembly (2); the three-dimensional steel frame comprises a lifting frame (1), and the upper left and right sides of the lifting frame (1) are both connected to a two-layer frame body (12); The lifting system (4) comprises a lifting tray (41), the four corners of the lifting frame (1) are each provided with a main column (11), the main column (11) is provided with a vertical lifting guide rail (44), the four corners of the lifting tray (41) are each provided with a lifting slider (43), the four lifting sliders (43) are slidably matched with the four lifting guide rails (44) in a one-to-one correspondence, the lifting tray (41) is provided with a non-powered roller (22) arranged on the left and right, the first double sprocket (413) and the first positioning sprocket (414) are respectively rotatably arranged at the top of the main column (11) located at the left front end, the second double sprocket (423) and the second positioning sprocket (424) are respectively rotatably arranged at the top of the main column (11) located at the left rear end, the third double sprocket (416) and the third positioning sprocket (415) are respectively rotatably arranged at the top of the main column (11) located at the right front end, the fourth double sprocket (427) and the fourth positioning sprocket (426) are respectively rotatably arranged at the top of the main column (11) located at the right front end, The lifting frame (1) is provided with a first lifting frame (413) and a second lifting frame (423) at the right rear end, the first double sprocket (413) and the second double sprocket (423) are connected via a universal shaft (48), the third double sprocket (416) and the fourth double sprocket (427) are connected via a universal shaft (48), the first double sprocket (413) and the first driven sprocket (47) are coaxially connected, the third double sprocket (416) and the second driven sprocket (410) are coaxially connected, and the lifting frame (1) is provided with a first lifting frame (413). A reduction motor (45) and a second lifting reduction motor (411), wherein a first driving sprocket (46) is sleeved on the output shaft of the first lifting reduction motor (45), and a second driving sprocket (430) is sleeved on the output shaft of the second lifting reduction motor (411), the first driving sprocket (46) and the first driven sprocket (47) are connected via a closed chain ring, and the second driving sprocket (430) and the second driven sprocket (410) are connected via a closed chain ring; One end of the first open-loop long chain (432) is connected to the right front end of the lifting tray (41), the other end of the first open-loop long chain (432) passes through the third positioning sprocket (415) and a group of sprocket teeth of the first double sprocket (413) in sequence upwards, and is drooped down to be connected to the first counterweight assembly (412); one end of the first open-loop short chain (419) is connected to the left front end of the lifting tray (41), the other end of the first open-loop short chain (419) passes through another group of sprocket teeth of the first double sprocket (413) upwards, and is drooped down to be connected to the first counterweight assembly (412); One end of the second open-loop long chain (425) is connected to the right rear end of the lifting tray (41), the other end of the second open-loop long chain (425) passes upwards around a group of sprockets of the fourth positioning sprocket (426) and the second double sprocket (423) in sequence, and is drooped down to be connected to the second counterweight assembly (422), one end of the second open-loop short chain (421) is connected to the left rear end of the lifting tray (41), the other end of the second open-loop short chain (421) passes upwards around another group of sprockets of the second double sprocket (423), and is drooped down to be connected to the second counterweight assembly (422); One end of the third open-loop long chain (418) is connected to the left front end of the lifting tray (41), and the other end of the third open-loop long chain (418) is passed around the first positioning sprocket (414) and a group of sprocket teeth of the third double sprocket (416) in sequence, and is drooped down to be connected to the third counterweight assembly (417); one end of the third open-loop short chain (431) is connected to the right front end of the lifting tray (41), and the other end of the third open-loop short chain (431) is passed around another group of sprocket teeth of the third double sprocket (416) in sequence, and is drooped down to be connected to the third counterweight assembly (417); One end of the fourth open-loop long chain (420) is connected to the left rear end of the lifting tray (41), the other end of the fourth open-loop long chain (420) is passed around the second positioning sprocket (424) and a group of sprocket teeth of the fourth double sprocket (427) in sequence, and is drooped down to be connected to the fourth counterweight assembly (429), one end of the fourth open-loop short chain (428) is connected to the right rear end of the lifting tray (41), the other end of the fourth open-loop short chain (428) is passed around another group of sprocket teeth of the fourth double sprocket (427) in sequence, and is drooped down to be connected to the fourth counterweight assembly (429); A second-layer cache (14) is formed above the second-layer frame (12), and a first-layer cache (13) is formed between the second-layer frame (12) and the ground below. The second-layer cache (14) and the first-layer cache (13) are both provided with a storage position slide assembly (3). The storage position slide assembly (3) comprises a storage position slide base (31) arranged left and right in the length direction. A traction head (32) is slidably arranged along the length direction of the storage position slide base (31). A rotatable screw rod (38) is arranged on the storage position slide base (31) along the length direction. The traction head (32) is threadedly matched with the screw rod (38). One end of the screw rod (38) is coaxially connected to a driven pulley (34). A traction motor (36) is provided on the storage position slide base (31). A driving pulley (35) is sleeved on the output shaft of the traction motor (36). The driving pulley (35) is The wheel (35) is connected to the driven pulley (34) through a synchronous belt, and a left-right unpowered roller (22) is provided on the storage position slide base (31). A second-layer fixture switching station is located between the storage position slide assemblies (3) in the two second-layer cache warehouses (14), and a first-layer fixture switching station is located between the storage position slide assemblies (3) in the two first-layer cache warehouses (13). When the lifting tray (41) slides to the second-layer fixture switching station, the unpowered roller (22) of the lifting tray (41) is aligned and connected with the unpowered roller (22) of the storage position slide assemblies (3) in the two second-layer cache warehouses (14). When the lifting tray (41) slides to the first-layer fixture switching station, the unpowered roller (22) of the lifting tray (41) is aligned and connected with the unpowered roller (22) of the storage position slide assemblies (3) in the two first-layer cache warehouses (13); The in-and-out storage slide assembly (2) comprises an in-and-out storage slide base (21) arranged front and rear in the length direction, a slide trolley (25) slidingly arranged along the length direction of the in-and-out storage slide base (21), a top end of the slide trolley (25) is provided with a non-powered roller (22) arranged left and right, an in-and-out storage slide base (21) is provided with a helical rack (29) along the length direction, an in-and-out storage reduction motor (24) is provided on the slide trolley (25), and a sleeve is provided on the output shaft of the in-and-out storage reduction motor (24). A bevel gear (23) is connected, and the bevel gear (23) is meshed with a bevel rack (29). The rear end of the entry and exit slide base (21) extends to the bottom of the lifting frame (1). The front end of the entry and exit slide assembly (2) is an operating station. When the slide trolley (25) slides backward to the first-layer fixture switching station, the unpowered roller (22) of the slide trolley (25) is aligned with the unpowered roller (22) of the storage position slide assembly (3) in the two first-layer cache warehouses (13).

2. A fixture switching stereoscopic warehouse according to claim 1, characterized in that: The slide trolley (25) is provided with two fixture positioning cylinders (28), and the tooling fixture (6) is provided with two positioning sleeves. The piston rods of the two fixture positioning cylinders (28) on the slide trolley (25) are pin-connected or separated with the two positioning sleeves in a one-to-one correspondence.

3. A fixture switching stereoscopic warehouse according to claim 2, characterized in that: Two clamp positioning cylinders (28) are arranged on the lifting tray (41), and the piston rods of the two clamp positioning cylinders (28) on the lifting tray (41) are correspondingly engaged with or separated from the two positioning sleeves.

4. The fixture switching stereoscopic warehouse according to claim 1, characterized in that: The operating station for entering and exiting the slide base (21) and the first-layer fixture switching station are both equipped with a first positioning ear, and the slide trolley (25) is provided with a trolley positioning cylinder (26). When the slide trolley (25) moves to the operating station or the first-layer fixture switching station, the piston rod of the trolley positioning cylinder (26) is pin-engaged with the corresponding first positioning ear.

5. The fixture switching stereoscopic warehouse according to claim 1, characterized in that: The slide trolley (25) is provided with a fixture identification sensor (37) and a second occupancy sensor (27).

6. The fixture switching stereoscopic warehouse according to claim 1, characterized in that: A fixture identification sensor (37) and a first occupancy sensor (39) are provided on the storage position slide base (31).

7. The fixture switching stereoscopic warehouse according to claim 1, characterized in that: The main body column (11) is a square tube component, and the first counterweight assembly (412), the second counterweight assembly (422), the third counterweight assembly (417) and the fourth counterweight assembly (429) are arranged in a one-to-one correspondence in the four main body columns (11).

8. The fixture switching stereoscopic warehouse according to claim 1, characterized in that: A connecting floor is provided on the upper part of the lifting frame (1), and the connecting floor is connected to the floors of two second-layer frames (12) to form a second-layer platform, and a fence (5) is provided around the second-layer platform.

9. A fixture switching stereoscopic warehouse according to claim 8, characterized in that: The ground and the second-floor platform are connected via a ladder.

10. A fixture switching stereoscopic warehouse according to any one of claims 1 to 9, characterized in that: The four corners of the lifting tray (41) are each provided with a Z-direction positioning unit (42), the Z-direction positioning unit (42) comprising a pressing base (433), a pressing cylinder (434) and a pressing arm (435), the middle portion of the pressing arm (435) being hinged to the pressing base (433), the pressing cylinder (434) being hinged to the pressing base (433), the piston rod of the pressing cylinder (434) being hinged to one end of the pressing arm (435), and the pressing arm (435) being hinged to the other end of the pressing arm (435). A pressing block (436) is provided at the other end of the main column (11), and a second positioning ear (49) is provided at the upper part of the main column (11). When the lifting tray (41) slides to the second-layer fixture switching station, the piston rod of the clamping cylinder (434) extends, and the pressing block (436) is pressed on the corresponding second positioning ear (49). When the piston rod of the clamping cylinder (434) retracts, the pressing block (436) is separated from the corresponding second positioning ear (49).

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