Heavy-load synchronous lifting and overturning device with rack positioning and control method thereof

Abstract

The application discloses a rack positioning heavy load synchronous lifting and overturning device and a control method thereof, which comprises a common base, an electrical control system, two columns, two lifting assemblies, two overturning assemblies, two clamp locking systems, two sets of protection devices, two automatic lubricating systems and two overturning tools; the two columns are symmetrically installed on the common base, and the two lifting assemblies are respectively installed on the opposite sides of the two columns; the two overturning assemblies are respectively fixed on the corresponding lifting assemblies, and the two clamp locking systems are respectively installed on the overturning assemblies; the two protection devices are respectively installed on the two columns; the two automatic lubricating systems are respectively installed on the two columns; the electrical control system is connected with the lifting assemblies, the overturning assemblies and the clamp locking systems; and the two overturning tools can be respectively and fixedly connected with the corresponding clamp locking systems. The device can realize the long-term reliable free lifting and overturning of heavy load products.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of liquid flow test, and relates to a rack positioning heavy load synchronous lifting and overturning device and a control method thereof. BACKGROUND

[0002] Key components such as nozzle products on a space engine are hollow cone-shaped in a conventional state, with a small upper part and a large lower part, a large bottom circle diameter, and a whole machine height related to climbing operation. In a liquid flow test process, the test needs to be completed in an overturned posture, that is, in a large upper part and a small lower part. The naked weight of the product is as high as 500 kg, and the estimated weight is doubled after adding the overturning tool 9. It is a bottleneck affecting the current liquid flow test efficiency to realize the overturning action of the nozzle product and maintain the stability and safety of the test process. At present, overturning mainly relies on manual operation with the help of a crown block and a sling, that is, three people stand at the product at an angle of 120°, the sling is placed on the protruding flange of the product, and the other person controls the crown block to slowly lift the product. When the lifting height is greater than the height of the center of gravity of the product, the remaining three people cooperate to complete the overturning action of the product. The whole process depends on the proficiency and cooperation ability of manual operation, contains a certain quality risk, and consumes manpower, time and effort.

[0003] The current mature overturning device has the ability of overturning and lifting, but cannot cope with the long-term reliable overturning of heavy load products. SUMMARY

[0004] The purpose of the application is to provide a rack positioning heavy load synchronous lifting and overturning device and a control method thereof, which solves the problem that the existing technology cannot cope with the long-term reliable overturning of heavy load products.

[0005] In order to achieve the above purpose, the application adopts the following technical solutions:

[0006] On the one hand, the application provides a rack positioning heavy load synchronous lifting and overturning device, which comprises a common base, an electrical control system, two columns, two lifting assemblies, two overturning assemblies, two clamp locking systems, two sets of protection devices, two automatic lubricating systems and two overturning tools. Wherein: the two columns are symmetrically installed on the common base, and the two lifting assemblies are respectively installed on the opposite sides of the two columns; the two overturning assemblies are respectively fixedly installed on the corresponding lifting assemblies; the two clamp locking systems are respectively installed on the corresponding overturning assemblies; the two protection devices are respectively installed on the opposite sides of the two columns except the lifting assemblies; the two automatic lubricating systems are respectively installed on the two columns and connected with the corresponding lifting assemblies through lubricating pipelines; the electrical control system is installed on one of the columns, and the electrical control system is electrically connected with the power drive devices of the lifting assemblies, the overturning assemblies and the clamp locking systems; the two overturning tools can be respectively docked and fixed with the corresponding clamp locking systems.

[0007] Further, the common base comprises a welded frame, two mounting platforms and multiple pairs of adjustment assemblies, wherein the two mounting platforms are symmetrically mounted on the upper surfaces of the two ends of the welded frame, the two columns are correspondingly mounted on the two mounting platforms, and the multiple pairs of adjustment assemblies are mounted on the bottom of the welded frame.

[0008] Further, the lifting assembly comprises a motor, a speed reducer, a coupling, a ball screw pair, a screw rod fixing seat, a screw rod support seat, a screw rod nut seat, a pair of linear guide rail assemblies and a sliding plate, wherein the motor is connected with the electrical control system, the output shaft of the motor is provided with the speed reducer, the motor and the speed reducer are mounted on the top of the corresponding column, and the other components of the lifting assembly are mounted in the column; the output shaft of the speed reducer is provided with the coupling, the other end of the coupling is provided with the ball screw pair, the ball screw pair is supported by the screw rod fixing seat and the screw rod support seat, the ball screw pair is provided with the screw rod nut seat, and the screw rod nut seat is provided with the sliding plate; the pair of linear guide rail assemblies are symmetrically arranged on the two sides of the ball screw pair and are symmetrically mounted on the side walls of the corresponding columns; the sliding plate is connected with the sliders of the pair of linear guide rail assemblies, the sliding plate can realize reciprocating linear motion along the linear guide rails of the linear guide rail assemblies to realize lifting, and the sliding plate is provided with a mounting hole of the turnover assembly in the middle.

[0009] Further, the turnover assembly comprises a servo motor, an RV speed reducer, a planetary speed reducer and a turnover flange, wherein the servo motor is connected with the electrical control system, the output shaft of the servo motor is provided with the RV speed reducer; the output shaft of the RV speed reducer is provided with the planetary speed reducer, and the output shaft of the planetary speed reducer is provided with the turnover flange; the sliding plate is square, and the middle part is provided with a circular hole for fixedly mounting the turnover flange.

[0010] Further, the clamp locking system comprises a clamp guide device, a longitudinal toothed plate, a clamping mechanism, an anti-falling bolt and a connecting shell, wherein the clamp guide device is mounted on the upper end surface of the connecting shell, the same side surface of the clamp guide device and the connecting shell is fixed on the turnover flange through bolts respectively, the clamp guide device is in a wedge-shaped structure and is provided with chamfers in the horizontal direction and the vertical direction; one longitudinal toothed plate is arranged on the upper surface of the connecting shell in the horizontal direction and the vertical direction; the clamping mechanism comprises two clamping cylinders which are symmetrically arranged on the left and right sides of the connecting shell through bolts and positioning pins, and the two clamping cylinders are connected with the electrical control system; the anti-falling bolt is mounted in the connecting shell and connected with the electrical control system through the telescopic cylinder, and can be horizontally stretched out or retracted from the front side of the connecting shell under the driving of the telescopic cylinder.

[0011] Further, the protection device comprises a water baffle, an organ protection cover and a power device protection cover, wherein the organ protection cover is mounted on the upper and lower sides of the sliding plate of the lifting assembly, and the power device protection cover is mounted on the top plate of the corresponding column.

[0012] Further, the automatic lubrication system directly connects the lubricating pipe to the lubricating grease pouring port of the sliding block and the ball screw pair.

[0013] Further, the electrical control system comprises a touch screen and a PLC controller, and the automatic control of the motor, the servo motor and the clamping mechanism is realized through the PLC controller.

[0014] Further, the turnover tooling comprises a tooling connecting rod, a plurality of reinforcing rib plates, four tooling positioning tooth-shaped plates and two L-shaped tooling support plates, wherein the reinforcing rib plates are connected and fixed to the vertical faces of the tooling connecting rod and the L-shaped tooling support plates, two tooling positioning tooth-shaped plates are installed on the bottom faces of the horizontal plates of the two L-shaped tooling support plates, and two symmetrical round holes are arranged on the vertical plates of the L-shaped tooling support plates.

[0015] On the other hand, the present application provides a control method of the rack positioning heavy load synchronous lifting and turnover device, which specifically comprises the following steps:

[0016] Step 1, installing the product to be tested on the turnover tooling;

[0017] Step 2, lowering the turnover tooling with the product to be tested installed thereon from a high place by a crown block or other means, so that the tooling positioning tooth-shaped plates at the two ends of the turnover tooling are engaged with the longitudinal tooth-shaped plates on the corresponding clamp locking system to realize the rack meshing positioning;

[0018] Step 2, simultaneously realizing the clamping and fixing actions of all the clamping mechanisms of the clamp locking system under the control of the electrical control system, and tightly pressing the horizontal plates of the L-shaped tooling support plates of the turnover tooling on the connecting housings of the clamp locking system;

[0019] Step 3, simultaneously realizing the extension actions of all the anti-falling bolts of the clamp locking system under the control of the electrical control system, and inserting the anti-falling bolts into the corresponding round holes in the tooling support plates of the turnover tooling;

[0020] Step 4, realizing the vertical lifting and turnover actions of the motor of the lifting assembly and the servo motor of the turnover assembly according to the test requirements under the control of the electrical control system;

[0021] Step 5, after the test is completed, simultaneously realizing the retraction actions of all the anti-falling bolts of the clamp locking system under the control of the electrical control system, and withdrawing the anti-falling bolts from the corresponding round holes in the tooling support plates of the turnover tooling;

[0022] Step 6, simultaneously realizing the opening actions of all the clamping mechanisms of the clamp locking system under the control of the electrical control system;

[0023] Step 7, hoisting up the turnover tooling to separate it from the clamp locking system, and completing the test.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] 1. The layout between the columns 2 and the common base plate 1 arranged symmetrically is the structural design basis for realizing heavy load lifting and overturning, that is, through the welding forming stainless steel plate body 202 and the integrally cast common base 1, the structural strength and operation stability can be effectively guaranteed.

[0026] 2. The lifting assembly 3 and the overturning assembly 4 are both symmetrically arranged structures, with high synchronization accuracy, meeting the synchronous overturning demand of heavy load products, and effectively avoiding the risk of deformation of the overturning tool 9 due to excessive torque caused by large product volume in the overturning state.

[0027] 3. The clamp locking system 5 realizes self-adaptive position fine adjustment of the overturning tool 9 through the longitudinal toothed plate 502, thereby realizing precise control of the position of the product to be tested, realizes automatic precise guiding and positioning of the overturning tool 9 through the clamp guiding device 501, and realizes automatic locking of the target object through the clamping mechanism 503.

[0028] In summary, the device of the present application can realize the free lifting and overturning capacity of heavy load products, and has (1) self-locking ability to keep the lifting and overturning state unchanged; (2) reliable positioning; (3) size compatibility within a certain range, without high requirement on product placement accuracy, reducing the placement difficulty of manual or outsourcing equipment, and only one person is needed to complete the overturning throughout, with fast positioning ability, safety interlocking function, stable and reliable operation, and no quality risk. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the global isometric view of the rack positioning heavy load synchronous lifting and overturning device of the present application;

[0030] Figure 2 is the front view of the rack positioning heavy load synchronous lifting and overturning device of the present application;

[0031] Figure 3 is Figure 1 the enlarged view of

[0032] Figure 4 is the structural schematic view of the common base plate;

[0033] Figure 5 is the structural schematic view of the column;

[0034] Figure 6 is the structural schematic view of the lifting assembly;

[0035] Figure 7 is the structural schematic view of the overturning assembly;

[0036] Figure 8 This is a schematic diagram of the clamping system.

[0037] Figure 9 This is a structural diagram of the flip-over fixture;

[0038] Figure 10 This is a schematic diagram of the protective device.

[0039] The meanings of the labels in the diagram are as follows:

[0040] 1-Common base, 101-Welded frame, 102-Mounting platform, 103-Adjustment assembly, 104-Chemical bolt, 105-Hollow bolt;

[0041] 2-Column, 201-Stiffening plate, 202-Plate body;

[0042] 3-Lifting assembly, 301-Motor, 302-Reducer, 303-Coupling, 304-Ball screw pair, 305-Screw fixing seat, 306-Screw support seat, 307-Screw nut seat, 308-Slide plate, 309-Linear guide assembly, 310-Slider;

[0043] 4-Flipping assembly, 401-Servo motor, 402-RV reducer, 403-Planetary reducer, 404-Flipping flange;

[0044] 5-Clamping locking system, 501-Clamping guide device, 502-Longitudinal toothed plate, 503-Clamping mechanism, 504-Anti-drop pin, 505-Connecting housing;

[0045] 6-Protective devices, 601-Water baffle, 602-Bell bellows cover, 603-Power unit cover;

[0046] 7-Automatic lubrication system; 8-Electrical control system;

[0047] 9-Flipping fixture, 901-Fitting fixture connecting rod, 902-Reinforcing rib plate, 903-Fitting fixture positioning toothed plate, 904-L-shaped fixture support plate. Detailed Implementation

[0048] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] like Figure 1 , Figure 2As shown, the rack-and-pinion positioning heavy-duty synchronous lifting and tilting device of the present invention includes a common base 1, an electrical control system 8, two columns 2, two lifting components 3, two tilting components 4, two clamping locking systems 5, two sets of protective devices 6, two automatic lubrication systems 7, and two tilting fixtures 9; wherein: the two columns 2 are symmetrically installed on the common base 1, the two lifting components 3 are respectively installed on opposite sides of the two columns 2; the two tilting components 4 are respectively fixedly installed on the corresponding lifting components 3, and the two clamping locking systems 5 are respectively installed on the corresponding tilting components 4; the two protective devices 6 are respectively installed on the opposite sides of the two columns 2 at positions other than the lifting components 3; the two automatic lubrication systems 7 are respectively installed on the two columns 2 and connected to the corresponding lifting components 3 through lubrication pipes; the electrical control system 8 is installed on one of the columns 2, and the electrical control system 8 is electrically connected to the power drive devices of the lifting components 3, tilting components 4, and clamping locking systems 5; the two tilting fixtures 9 can be docked and fixed with the corresponding clamping locking systems 5 respectively.

[0050] In the above technical solution, the common base 1 is used to ensure that the two symmetrical columns 2 are on the same mounting reference plane. The columns 2 are used to install the lifting assembly 3 to meet the lifting stroke requirements, and at the same time meet the load-bearing requirements of the flipping fixture 9 and the product. The lifting assembly 3 is used to provide guidance and power for the upward and downward movement of the flipping assembly 4 installed on it, ensuring the smoothness and accuracy of the up and down movement; the flipping assembly 4 is used to drive the clamping locking system 5, the flipping fixture 9 and the product to achieve flipping within a range of ±180°, providing guidance and power transmission for the flipping movement, ensuring the smoothness and accuracy of the flipping movement; the clamping locking system 5 is used to realize the automatic positioning, rapid clamping and release of the flipping fixture 9, and to prevent the flipping fixture 9 from falling off during the flipping process. Two sets of protective devices 6, arranged along the two columns 2 in the lifting direction, provide all-around coverage of the opposite sides of the two columns 2 except for the lifting assembly 3. These devices are designed to not obstruct the travel of the lifting assembly 3, ensuring that water splashing during the test will not cause mechanical or electrical malfunctions. This achieves physical isolation from the water medium, making the device suitable for environments with water mist. The automatic lubrication system 7 has an automatic grease filling port, facilitating manual periodic grease filling for regular lubrication of the transmission mechanism of the lifting assembly 3. The electrical control system 8 controls the operation of the lifting assembly 3, the tilting assembly 4, and the clamping locking system 5. Two tilting fixtures 9 are used to fix and support the product, allowing it to be loaded between the two columns 2. In summary, the device of this invention can achieve Z-axis lifting perpendicular to the ground and X-axis tilting around an axis parallel to the ground, fulfilling the automatic lifting and tilting functions of the target product.

[0051] As a preferred embodiment of the present invention, such as Figure 4As shown, the common base 1 includes a welded frame 101, two mounting platforms 102, and multiple pairs of adjustment components 103. The two mounting platforms 102 are symmetrically mounted on the upper surfaces of both ends of the welded frame 101, and the two uprights 2 are correspondingly mounted on the two mounting platforms 102. The multiple pairs of adjustment components 103 are mounted on the bottom of the welded frame 101. The upper surface of the mounting platform 102 is machined to ensure the flatness and verticality requirements when installing the uprights 2. The adjustment components 103 are used to fix the welded frame 101 to the ground and to adjust the parallelism between the welded frame 101 and the ground. Preferably, the welded frame 101 is welded from 304 stainless steel rectangular steel tubing and 304 stainless steel plate, with a passivated surface treatment. Preferably, the adjustment component 103 uses chemical bolts 104 and leveling bolts 105. Specifically, it is fixed with two chemical bolts 104 on each side of the common base 1, and leveling bolts 105 are used to fix the remaining positions. By rotating the leveling bolts 105, the gap between the welding frame 101 and the ground is adjusted, thereby leveling the device of the present invention, which can meet the leveling requirements of ground unevenness within 15mm.

[0052] As a preferred embodiment of the present invention, such as Figure 5 As shown, the plate 202 of the column 2 is made of 304 stainless steel plate and is welded by full welding to ensure the sealing of the weld. The overall surface is passivated. In addition, in order to ensure the rigidity and strength of the column 2, the internal stiffener arrangement of the column 2 adopts the same stiffener arrangement as the machine tool column, and the corner stiffener plate 201 is set on the outer side of the bottom of the column 2.

[0053] As a preferred embodiment of the present invention, such as Figure 6As shown, the lifting assembly 3 includes a motor 301, a reducer 302, a coupling 303, a ball screw pair 304, a screw fixing seat 305, a screw support seat 306, a screw nut seat 307, a pair of linear guide rail assemblies 309, and a sliding plate 308. The motor 301 is the power source for the lifting assembly 3 and is connected to the electrical control system 8 to achieve the function of speed reduction and torque increase. The reducer 302 is installed on the output shaft of the motor 301. The motor 301 and the reducer 302 are installed on the top of the corresponding column 2. All other components of the lifting assembly 3 are installed inside the column 2. A coupling 303 is installed on the output shaft of the reducer 302. A ball screw pair 304 is installed on the other end of the coupling 303. The ball screw pair 304 is supported by a screw fixing seat 305 and a screw support seat 306. A screw nut seat 307 is installed on the ball screw pair 304, and a slide plate 308 is installed on the screw nut seat. A pair of linear guide rail assemblies 309 are symmetrically installed on both sides of the ball screw pair 304, and both are symmetrically installed on the side walls of the corresponding columns 2. The slide plate 308 is connected to the sliders 310 on the pair of linear guide rail assemblies 309. The slide plate 308 can move back and forth along the linear guide rails of the linear guide rail assembly 309 with the sliders 310 to achieve lifting. The slide plate 308 has a mounting hole for the flipping assembly 4 in the middle.

[0054] Preferably, position sensors are provided at the upper and lower limits of the linear guide rail assembly 309 in the lifting assembly 3, and both position sensors are connected to the control system 8, which can provide power-off protection for the travel and positioning of the lifting shaft under the control of the control system 8.

[0055] As a preferred embodiment of the present invention, such as Figure 7 As shown, the tilting assembly 4 includes a servo motor 401, an RV reducer 402, a planetary reducer 403, and a tilting flange 404. The servo motor 401 is the power source for the tilting device and is connected to the electrical control system 8. The RV reducer 402 is mounted on the output shaft of the servo motor 401. The RV reducer 402 has a large number of simultaneously engaged gears, making it small and lightweight while also possessing high rigidity and overload resistance. Considering the routing of cables and air pipes, a hollow RV reducer 402 is preferred. The planetary reducer 403 is mounted on the output shaft of the RV reducer 402, and the tilting flange 404 is mounted on the output shaft of the planetary reducer 403. The sliding plate 308 is square, with a central hole for fixing the tilting flange 404.

[0056] Preferably, both motor 301 and servo motor 401 adopt electromagnetic brakes. Even if the factory suddenly loses power during the brake opening process (ascending, descending, or flipping), and the electrical components fail, the electromagnetic brake will automatically lock mechanically, thereby preventing slippage and increasing safety.

[0057] As a preferred embodiment of the present invention, such asFigure 8 As shown, the clamping system 5 includes a clamping guide device 501, a longitudinal toothed plate 502, a clamping mechanism 503, an anti-drop pin 504, and a connecting housing 505. The clamping guide device 501 is mounted on the upper surface of the connecting housing 505. The clamping guide device 501 and the connecting housing 505 are respectively fixed to the flipping flange 404 by bolts on the same side. The clamping guide device 501 has a wedge-shaped structure with chamfers in both the horizontal and vertical directions, used to guide the flipping fixture 9 when it is placed onto the flipping assembly 4. The longitudinal toothed plate 502 has a rack structure, with one longitudinal toothed plate 502 arranged horizontally and one vertically on the upper surface of the connecting housing 505. The clamping mechanism 503 includes two clamping cylinders symmetrically arranged on the left and right sides of the connecting housing 505 by bolts and positioning pins. Both clamping cylinders are connected to the electrical control system 8, which controls the opening or clamping to achieve automatic locking of the product and the flipping fixture 9 in the vertical direction. The anti-drop pin 504 is installed inside the connecting housing 505 and is connected to the electrical control system 8 through the telescopic cylinder. It can extend or retract horizontally from the front side of the connecting housing 505 under the drive of the telescopic cylinder. The anti-drop pin 504 of the clamping locking system 5 extends out from both ends and inserts into the flipping fixture 9, further assisting the clamping mechanism 503 in fixing the flipping fixture 9 and improving the stability during the flipping process.

[0058] Preferably, the clamping system 5 uses a pneumatic clamping cylinder with a mechanical dead-point locking function. In the event of a sudden gas outage in the factory, the clamping mechanism 503 remains in a clamped state, the starting parts will suddenly fail, and the system cannot be opened. This can prevent the product from falling and being damaged due to the failure of the pneumatic clamping cylinder during the flipping process. After the gas is restored, the clamping system 5 automatically returns to a usable state and can continue to conduct fluid flow tests, increasing safety.

[0059] Flipping fixture 9 is a non-standard fixture designed to flip the target object. For example... Figure 9As shown, the flipping fixture 9 includes a fixture connecting rod 901, several reinforcing ribs 902, four fixture positioning toothed plates 903, and two L-shaped fixture support plates 904. The fixture connecting rod 901 is used to connect with the product to be tested; the connection method is non-standard, designed according to the product's shape. The reinforcing ribs 902 connect and fix the vertical surfaces of the fixture connecting rod 901 and the L-shaped fixture support plates 904 by welding, providing structural reinforcement. Two fixture positioning toothed plates 903 are installed on the bottom surface of the horizontal plates of the two L-shaped fixture support plates 904. When the flipping fixture 9 is lowered from a vertical height onto the flipping assembly 4 by an overhead crane or other means, the horizontal plates of the L-shaped fixture support plates 904 overlap the upper end face of the connecting housing 505 of the clamping system 5, and the fixture positioning toothed plates 903 engage with the corresponding longitudinal toothed plates 502 on the clamping system 5 for rack-and-tooth positioning. The toothed plate has precise positioning capability. After precise positioning, the flip tool 9 meets the position deviation of ±5mm in the horizontal and vertical directions to achieve precise positioning of the flip tool 9. There are two symmetrically arranged round holes on the vertical plate of the L-shaped tool support plate 904. When the anti-drop pin 504 of the clamp locking system 5 extends out and enters the round hole, multiple safety protections for the flip tool are achieved from both ends.

[0060] As a preferred embodiment of the present invention, such as Figure 10 As shown, the protective device 6 includes a water baffle 601, a bellows cover 602, and a power unit cover 603. Bellows covers 602 (preferably made of waterproof nylon fabric) are installed on both the upper and lower sides of the sliding plate 308 of the lifting assembly 3. The power unit cover 603 is made of 304 sheet metal and is installed on the top plate of the corresponding column 2 to protect the motor 301 and reducer 302 installed on the top of the column 2.

[0061] In a preferred embodiment of the present invention, the automatic lubrication system 7 is used to lubricate the slider 310 and the ball screw assembly 304, preferably using grease lubrication; the lubrication interval is manually set, and each lubrication point is lubricated quantitatively each time; when the amount of grease is insufficient, an automatic alarm is triggered. The automatic lubrication system 7 is directly connected to the grease inlet of the slider 310 and the ball screw assembly 304 through lubrication pipelines.

[0062] In a preferred embodiment of the present invention, the electrical control system 8 includes a touch screen and a PLC controller, equipped with automatic execution buttons. The lifting and tilting parameters for different products are pre-programmed and fixed. The PLC controller enables automatic control of motor 301, servo motor 401, and clamping mechanism 503, thereby achieving lifting, tilting, and automatic clamping actions of the clamping locking system. Manual operation is simple; operators only need to click the corresponding buttons on the touch screen one by one according to the operation guide. The system is easy to operate and features a programmable, foolproof control function. During operation, the PLC controller of the electrical control system 8 can synchronously control motor 301 and servo motor 401. If a fault occurs, the movement of the device will be restricted, and an alarm will sound, causing the device to stop. Furthermore, if either motor fails during dual-drive operation, a signal will be sent to the electrical control system 8, which will issue an alarm error code. At this point, the test needs to be stopped, and the cause of the motor asynchrony needs to be checked. In this embodiment, the touch screen of the electrical control system 8 uses a Siemens HMI for convenient manual operation and monitoring. The PLC controller uses the open PROFINENT communication standard to achieve precise synchronous control of the lifting and tilting axes.

[0063] The control method for the rack positioning heavy-duty synchronous lifting and tilting device of the present invention specifically includes the following steps:

[0064] Step 1: Install the product to be tested onto the flip fixture 9;

[0065] Step 2: The flipping fixture 9, on which the product to be tested is installed, is lowered from a height using an overhead crane or other means, so that the fixture positioning toothed plates 903 at both ends of the flipping fixture 9 engage with the longitudinal toothed plates 502 on the corresponding clamping system 5 to achieve the first layer of safety protection.

[0066] Step 2: Under the control of the electrical control system 8, all clamping mechanisms 503 of the clamping system 5 simultaneously perform clamping and fixing actions, pressing the horizontal plate of the L-shaped tooling support plate 904 of the flip tooling 9 tightly onto the connecting housing 505 of the clamping system 5, thus achieving a second layer of safety protection.

[0067] Step 3: Under the control of the electrical control system 8, all the anti-drop pins 504 of the clamping locking system 5 extend simultaneously and are inserted into the round holes on the corresponding tooling support plate 904 of the flipping tooling 9 to achieve a third layer of safety protection.

[0068] Step 4: Under the control of the electrical control system 8, the motor 301 of the lifting component 3 and the servo motor 401 of the tilting component 4 realize vertical lifting and tilting actions according to the test requirements.

[0069] Step 5: After the test, all the anti-drop pins 504 of the clamping system 5 retract simultaneously under the control of the electrical control system 8, and disengage from the round holes on the corresponding tooling support plate 904 of the flipping tooling 9.

[0070] Step 6: Under the control of the electrical control system 8, all clamping mechanisms 503 of the clamping system 5 simultaneously open.

[0071] Step 7: Lift the flip tool 9 to detach it from the clamping system 5, and the test is complete.

[0072] This invention enables heavy-duty products to be freely lifted, turned, and rotated, and has (1) the ability to maintain the lifting and turning state unchanged; (2) reliable positioning; (3) size compatibility within a certain range, does not require high product placement accuracy, reduces the difficulty of placement by manual or outsourced equipment, only one person is needed to complete the entire rotation, has rapid positioning capability, has safety interlock function, operates stably and reliably, and has no quality risk.

Claims

1. A rack positioned heavy load synchronous lifting and turning device, characterized in that, The utility model relates to a kind of two-way automatic flip workbench, including public base (1), electrical control system (8), two columns (2), two lifting assemblies (3), two turnover assemblies (4), two fixture locking systems (5), two sets of protective devices (6), two automatic lubricating systems (7) and two turnover toolings (9);Wherein: the two columns (2) are symmetrically installed public base (1) on, two lifting assemblies (3) are respectively installed in the opposite side of two columns (2);Two turnover assemblies (4) are respectively fixedly installed on corresponding lifting assembly (3), and two fixture locking systems (5) are respectively installed on corresponding turnover assembly (4);Two protective devices (6) are respectively installed on the position except lifting assembly (3) on the opposite side of two columns (2);Two automatic lubricating systems (7) are respectively installed on two columns (2) and are connected with corresponding lifting assembly (3) by lubricating pipeline;Electrical control system (8) is installed on one of two columns (2), and electrical control system (8) is electrically connected with the power drive device of lifting assembly (3), turnover assembly (4) and fixture locking system (5);Two turnover toolings (9) can be respectively butt-jointed with corresponding fixture locking system (5) and fixed; The fixture locking system (5) includes fixture guide device (501), longitudinal toothed plate (502), clamping mechanism (503), anti-falling bolt (504) and connecting shell (505), wherein the fixture guide device (501) is installed on the upper end surface of the connecting shell (505), the same side surface of the fixture guide device (501) and the connecting shell (505) is fixed on the turnover flange (404) by bolts respectively, the fixture guide device (501) is in wedge-shaped structure, and is provided with chamfers in horizontal direction and vertical direction; One longitudinal toothed plate (502) is arranged on the upper surface of the connecting shell (505) in horizontal direction and vertical direction respectively; The clamping mechanism (503) includes two clamping cylinders arranged symmetrically on the left and right sides of the connecting shell (505) by bolts and positioning pins, and the two clamping cylinders are connected with the electrical control system (8); The anti-falling bolt (504) is installed in the connecting shell (505), and is connected with the electrical control system (8) by the telescopic cylinder, and can be horizontally stretched out or retracted from the front side of the connecting shell (505) under the driving of the telescopic cylinder; The turnover tooling (9) includes tooling connecting rod (901), a plurality of reinforcing rib plates (902), four tooling positioning toothed plates (903) and two L-shaped tooling support plates (904), wherein the reinforcing rib plate (902) connects and fixes the vertical surface of the tooling connecting rod (901) and the L-shaped tooling support plate (904), two tooling positioning toothed plates (903) are installed on the bottom surface of the horizontal plate of the two L-shaped tooling support plates (904) respectively; Two symmetrically arranged round holes are arranged on the vertical plate of the L-shaped tooling support plate (904).

2. A rack positioned heavy load synchronous lifting and tilting device as claimed in claim 1, characterized in that, The public base (1) comprises a welded frame (101), two mounting platforms (102) and multiple pairs of adjustment assemblies (103), wherein the two mounting platforms (102) are symmetrically mounted on the upper surfaces of the two ends of the welded frame (101), the two columns (2) are correspondingly mounted on the two mounting platforms (102), and the multiple pairs of adjustment assemblies (103) are mounted on the bottom of the welded frame (101).

3. The rack positioned heavy load synchronous lifting and turning device as claimed in claim 1, wherein, The lifting assembly (3) comprises a motor (301), a speed reducer (302), a shaft coupling (303), a ball screw pair (304), a screw rod fixing seat (305), a screw rod supporting seat (306), a screw rod nut seat (307), a pair of linear guide rail assemblies (309) and a sliding plate (308), wherein the motor (301) is connected with the electrical control system (8), the output shaft of the motor (301) is provided with the speed reducer (302), the motor (301) and the speed reducer (302) are mounted on the top of the corresponding column (2), and the other components of the lifting assembly (3) are all mounted in the column (2); the output shaft of the speed reducer (302) is provided with the shaft coupling (303), the other end of the shaft coupling (303) is provided with the ball screw pair (304), the ball screw pair (304) is supported by the screw rod fixing seat (305) and the screw rod supporting seat (306), the screw rod nut seat (307) is mounted on the ball screw pair (304), and the sliding plate (308) is mounted on the screw rod nut seat; the pair of linear guide rail assemblies (309) are symmetrically mounted on the two sides of the ball screw pair (304) and are symmetrically mounted on the side walls of the corresponding column (2), the sliding plate (308) is connected with the sliders (310) on the pair of linear guide rail assemblies (309), the sliding plate (308) can realize reciprocating linear motion along the linear guide rails of the linear guide rail assemblies (309) with the sliders (310), so that the lifting is realized; the sliding plate (308) is provided with a mounting hole of the turnover assembly (4) in the middle.

4. A heavy load synchronous lifting and tilting device with rack positioning as claimed in claim 3, characterized in that, The turnover assembly (4) comprises a servo motor (401), an RV speed reducer (402), a planetary speed reducer (403) and a turnover flange (404), wherein the servo motor (401) is connected with the electrical control system (8), the output shaft of the servo motor (401) is provided with the RV speed reducer (402); the output shaft of the RV speed reducer (402) is provided with the planetary speed reducer (403), and the output shaft of the planetary speed reducer (403) is provided with the turnover flange (404); the sliding plate (308) is square, and a circular hole for fixedly mounting the turnover flange (404) is arranged in the middle.

5. The rack positioned heavy load synchronous lifting and turning device as claimed in claim 3, wherein, The protection device (6) comprises a water baffle (601), an organ protection cover (602) and a power device cover (603), wherein the organ protection covers (602) are mounted on the upper and lower sides of the sliding plate (308) of the lifting assembly (3), and the power device cover (603) is mounted on the top plate of the corresponding column (2).

6. The rack positioned heavy load synchronous lifting and turning device as claimed in claim 3, wherein, The automatic lubricating system (7) is directly connected with the lubricating grease pouring ports of the sliders (310) and the ball screw pair (304) through a lubricating pipeline.

7. The rack positioned heavy load synchronous lifting and turning device as claimed in claim 4, wherein, The electric control system (8) includes a touch screen and a PLC controller, and the automatic control of the motor (301), the servo motor (401) and the clamping mechanism (503) is realized through the PLC controller.

8. The control method of the rack positioning heavy load synchronous lifting and overturning device according to claim 4, specifically comprising the following steps: Step 1, installing the product to be tested on the overturning tool (9); Step 2, lowering the overturning tool (9) with the product to be tested installed thereon from a high place by a crown block or other means, so that the tool positioning rack-shaped plate (903) at both ends of the overturning tool (9) is engaged and fixed with the longitudinal rack-shaped plate (502) on the clamp locking system (5); Step 2, all clamping mechanisms (503) of the clamp locking system (5) simultaneously realize clamping and fixing actions under the control of the electric control system (8), and the horizontal plate of the L-shaped tool support plate (904) of the overturning tool (9) is tightly pressed above the connecting shell (505) of the clamp locking system (5); Step 3, all anti-falling latches (504) of the clamp locking system (5) simultaneously realize the extension action under the control of the electric control system (8), and are inserted into the corresponding round holes in the tool support plate (904) of the overturning tool (9); Step 4, the motor (301) of the lifting assembly (3) and the servo motor (401) of the overturning assembly (4) realize vertical lifting and overturning actions according to test requirements under the control of the electric control system (8); Step 5, after the test is completed, all anti-falling latches (504) of the clamp locking system (5) simultaneously realize the retraction action under the control of the electric control system (8), and are withdrawn from the corresponding round holes in the tool support plate (904) of the overturning tool (9); Step 6, all clamping mechanisms (503) of the clamp locking system (5) simultaneously realize the opening action under the control of the electric control system (8); Step 7, the overturning tool (9) is lifted to separate from the clamp locking system (5), and the test is completed.

Images