Maintenance operation table

Abstract

The invention discloses an overhaul operation table which comprises a base, two stand columns fixedly connected to the base and jigs horizontally and oppositely arranged on the upper portions of the two stand columns, each jig is rotationally connected into the corresponding stand column through a rotating shaft, a braking module used for locking the corresponding rotating shaft is arranged in at least one stand column, and the input end of each braking module is connected with a control module. The overhauling operation table is simple in structure, convenient and fast to use and operate and easy to use, compared with an overturning mode of an existing operation table, the overhauling operation table is easier to adapt to overhauling treatment of complex and irregular large workpieces, on the basis that the overturning flexibility degree is high, the fixing effect on the posture of the overturned and adjusted workpieces is more stable, and the overturning efficiency is improved. And the smooth and safe maintenance process of workers is ensured, and meanwhile, the production cost is obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of manual maintenance, in particular to a maintenance operating table. Background Art

[0002] With the rapid development of the manufacturing industry, the requirements for product quality and production efficiency are increasing day by day. During the processing of large and complex workpieces, such as aerospace components, key parts of automobile engines, precision mechanical parts, etc., deburring, welding slag and other irregular protrusions, surface grinding and maintenance are important links to ensure product accuracy, appearance quality, service life, product performance and safety.

[0003] With the continuous advancement of industrial automation and intelligent technology, these traditional manual or semi-automatic operations are gradually being replaced by efficient and precise automated equipment and systems.

[0004] However, for some complex or high-precision workpieces, manual inspection, grinding and deburring can achieve more refined processing. This kind of fine operation is difficult to completely replace by machine automation, especially when processing details and corners, manual work can rely on experience and flexibility to ensure that product quality and precision meet the requirements.

[0005] Moreover, there are many types of workpieces in the manufacturing industry, with different shapes and materials. Manual inspection, grinding and deburring can flexibly adjust the processing method and strength according to the specific needs and characteristics of the workpiece to meet the processing requirements of different workpieces. Therefore, the current manufacturing factories will retain the manually operated inspection platform.

[0006] In current manufacturing plants, the maintenance operation table is usually a large platform, which can rotate the workpiece for maintenance after clamping it. Among them, its rotation function is usually realized by the design of servo motor acceleration and reduction gear.

[0007] For example, the Chinese invention patent application with publication number CN117086738A discloses a clamping and flipping tooling and design method for grinding and polishing of complex curved shell parts, wherein the flipping module is driven by a servo motor and a reducer and a belt provides a flipping function for the entire workpiece.

[0008] For most manufacturing companies, the purchasing demand for manual operating tables is mainly to meet the basic needs. There is no need for particularly complex structural design. Manual operating tables with too many functions will also be relatively expensive, which is not conducive to the purchasing standards of some manufacturers. If the cost is too high, these manufacturers will consider more advanced fully automated maintenance equipment.

[0009] In addition, for large and complex-shaped workpieces, there may be unbalanced force on both sides, which will aggravate the difficulty of flipping. For this reason, the workpiece posture cannot be fixed stably, and the belt transmission method obviously cannot ensure that the workpiece posture remains stable. Therefore, manual inspection and grinding will easily cause the workpiece to be further stressed and deflected, which can easily cause damage to the workpiece or even a safety accident.

[0010] Therefore, in order to ensure that the maintenance operation platform has a wide range of applications, to allow the operation platform to have stronger processing capabilities, and to provide effective stability during operation, the present application proposes a simple and easy-to-use maintenance operation platform. Summary of the invention

[0011] The purpose of the present invention is to solve the shortcomings existing in the prior art. The proposed maintenance workbench is easier to adapt to the maintenance and processing of complex and irregular large workpieces than the flipping method of the existing workbench. On the basis of high flipping flexibility, the fixing effect of the posture of the workpiece after flipping and adjustment is more stable, ensuring that the workers' maintenance and processing process is smooth and safe. At the same time, the production cost is also significantly lower.

[0012] In order to achieve the above object, the present invention provides the following technical solutions: The maintenance operating table includes a base, two columns fixedly connected to the base, and jigs arranged horizontally on the upper parts of the two columns. Each of the jigs is rotatably connected to the column via a rotating shaft. At least one of the columns is provided with a braking module for locking the rotating shaft, and the input end of the braking module is connected to a control module.

[0013] Through the above structure, a maintenance operating table with a simple structure and convenient and easy operation is provided. Compared with the flipping method of the existing operating table, it is easier to adapt to the maintenance and processing of complex and irregular large workpieces. On the basis of a high degree of flipping flexibility, the fixing effect of the posture of the workpiece after flipping and adjustment is more stable, ensuring that the workers' maintenance and processing process is smooth and safe. At the same time, the production cost is also significantly lower.

[0014] Preferably, the base is U-shaped.

[0015] The above structure not only provides a wider range of reversible diameters for the operating table, but also makes it easier for workers to move around the area around the operating table for maintenance operations without tripping.

[0016] Preferably, a non-slip pad is provided at the bottom of the base.

[0017] Through the above structure, the base is not prone to slipping during the maintenance process, ensuring the safety of the maintenance process.

[0018] Preferably, the bottom of the base is provided with height-adjusting feet.

[0019] Through the above structure, it is possible to cope with uneven sites and ensure that no unnecessary shaking occurs during the maintenance process, thereby affecting the accuracy and safety of manual maintenance processing.

[0020] Preferably, the column is provided with a plurality of hooks, wire drums, and storage boxes for mounting maintenance tools, grinding tools, etc.

[0021] Through the above structure, workers can conveniently take out and use various tools needed in the maintenance process, and avoid situations with safety hazards such as wire entanglement, thereby improving the availability and ease of use of the maintenance operating table.

[0022] Preferably, a lamp pole is provided at the top of the column, and a lamp is provided on the lamp pole.

[0023] Through the above structure, supplementary lighting from top to bottom is provided without affecting the flipping range of the workpiece, avoiding the situation that only the lighting measures within the site may affect manual observation and thus affect the maintenance process due to insufficient lighting intensity. In addition, such a design cost is relatively low and it is simple and easy to use.

[0024] Preferably, a braking module is provided in each of the two columns, and the two braking modules are synchronously controlled by a control module.

[0025] Through the above structure, synchronous control of the rotating shafts at both ends can be achieved, so that the rotating shafts at both ends can be locked or unlocked at the same time. On the basis of ensuring the flexibility of flipping adjustment, the locking effect of the workpiece after flipping adjustment is further ensured, which can effectively prevent the rotating shaft from wearing, twisting, breaking or the workpiece from twisting and damaging when the center of gravity of an irregular workpiece is unbalanced.

[0026] Preferably, the braking module is in a normally closed state, the braking module includes a pneumatic brake, and the control module includes one of a foot switch and a button.

[0027] Through the above structure, the rotating shaft is unlocked only when the control module is operated, and the response is rapid, thereby constructing a maintenance operating table that is very convenient for flipping and adjusting.

[0028] Preferably, it further comprises at least one hand wheel, wherein the hand wheel is connected to one of the rotating shafts.

[0029] Through the above structure, the design of the handwheel is not only lower in cost, but also in combination with the aforementioned pneumatic brake and the control module for pressing to release and lock the rotating shaft, the adjustment operation is more in line with the design concept of manual maintenance and processing, that is, it is safe, convenient and flexible to perform flip adjustment.

[0030] Preferably, the handwheel is connected to the rotating shaft via a reducer.

[0031] The above structure can greatly reduce the difficulty of workers manually turning over the workpiece.

[0032] Preferably, the column is further provided with angle markings, and the angle markings at least include a horizontal line.

[0033] Through the above structure, workers can directly and clearly adjust the workpiece to a suitable angle, which is particularly suitable for measuring, observing and operating when grinding the surface of the workpiece.

[0034] Preferably, a fixed seat is provided in the column, and the rotating shaft is rotatably connected to the fixed seat via a bearing.

[0035] Through the above structure, the bearing makes the rotation of the shaft more flexible and the force is more balanced, making it easier for workers to operate when turning and adjusting the workpiece.

[0036] Preferably, a damping sleeve is further provided on one end of the fixing seat close to the hand wheel, and the central axis of the hand wheel is inserted into the damping sleeve and has an interference fit with the damping sleeve.

[0037] Through the above structure, resistance can be provided to the rotation of the rotating shaft, and the motion energy can be consumed, so that the worker can more easily adjust the workpiece to a suitable working angle.

[0038] Preferably, the two jigs both include an L-shaped plate for connecting the rotating shaft and a clamping plate detachably connected to the L-shaped plate, the clamping plate is provided with a plurality of clamps for fixing the workpiece, and the clamping plate is arranged at an eccentric position of the L-shaped plate.

[0039] Through the above structure, the replacement of the fixture is more convenient to meet the installation of different types of workpieces on the maintenance operating table, and the center of gravity of the workpiece can be made closer to the extension line of the rotating shaft, greatly reducing the difficulty of workers in flipping and adjusting.

[0040] Preferably, the clamp comprises a positioning member and a locking member.

[0041] Through the above structure, the workpiece can be positioned and locked on the clamping plate, which is convenient for workers to quickly install the workpiece on the maintenance operating table. The workpiece is not prone to displacement after installation. The structure is also relatively simple and the cost is not too high.

[0042] Preferably, the L-shaped plate is further provided with a counterweight mechanism, including a vertical pole fixedly connected to one end of the L-shaped plate close to the column, a plurality of counterweight blocks sleeved on the vertical pole, and an anti-slip member on the vertical pole.

[0043] Through the above structure, when the center of gravity of the workpiece is unbalanced, a counterweight of appropriate weight can be added according to the actual situation to achieve radial force balance of the rotating shaft at both ends, thereby greatly reducing the difficulty of flipping adjustment operation under low cost conditions. Moreover, this method is easy to cope with various complex and irregular large workpieces and has strong adaptability.

[0044] Preferably, the column is further provided with a self-locking drive mechanism for driving the rotating shaft to rotate, the self-locking drive mechanism comprises a worm mechanism, and the input end of the self-locking drive mechanism is electrically connected to the output end of the control module.

[0045] Through the above structure, the control module controls the workpiece to flip instead of the manual flipping method, which can save manpower. For many complex and irregular large workpieces, it can greatly reduce the difficulty of operation during flipping adjustment, and it is not easy to cause wear to the self-locking drive mechanism during maintenance and treatment, and it also provides a more stable locking effect for the workpiece after flipping adjustment.

[0046] Preferably, the column is also provided with an encoder connected to the end of the rotating shaft, and the encoder is electrically connected to the control module.

[0047] Through the above structure, on the basis of the self-locking drive mechanism, a parameter setting function is provided, and the workpiece can be turned over and adjusted more accurately according to the set parameters, which is suitable for use in workpieces with high maintenance accuracy requirements.

[0048] Preferably, the self-locking drive mechanism also includes a servo motor.

[0049] Through the above structure, the servo motor can be used directly to replace the encoder plus self-locking drive mechanism. The workpiece can also be turned over more accurately according to the set parameters, which is suitable for use in workpieces with high maintenance requirements.

[0050] Preferably, it further comprises a lifting mechanism for driving the rotating shaft to rise and fall in the column, the input end of the lifting mechanism is electrically connected to the output end of the control module, and the lifting mechanism comprises one of a screw-screw mechanism and a hydraulic cylinder.

[0051] Through the above structure, when the workpiece cannot be turned over smoothly or the height of the maintenance position is not convenient for maintenance, the height of the workpiece can be adjusted, which is very convenient to use and is especially suitable for use in workpieces with larger widths.

[0052] Preferably, the top end of the lifting mechanism is fixedly connected to a fixing seat.

[0053] Preferably, a vertical guide rail is further provided in the column, and the fixing seat is slidably connected to the vertical guide rail.

[0054] Through the above structure, both ends of the workpiece can stably move up and down between the two columns.

[0055] Compared with the prior art, the present invention has the following beneficial effects: simple structure and convenient and easy operation; compared with the flipping method of the existing operating table, it is easier to adapt to the maintenance and processing of complex and irregular large workpieces; on the basis of a high degree of flipping flexibility, the fixing effect of the posture of the workpiece after flipping and adjustment is more stable, ensuring that the workers' maintenance and processing process is smooth and safe; at the same time, the production cost is also significantly lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a schematic diagram of the three-dimensional structure of the maintenance operation platform proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the column in the maintenance operation table proposed by the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the brake module in the maintenance operation platform proposed by the present invention; Figure 4 This is a schematic diagram of the assembly structure of the brake module and the rotating shaft in the maintenance operation platform proposed by the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the reducer in the maintenance operation table proposed by the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the counterweight mechanism in the maintenance operation platform proposed by the present invention; Figure 7 This is a structural schematic diagram of the self-locking drive mechanism in the maintenance operation table proposed by the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the base in the maintenance operation table proposed by the present invention; Fig. 9 This is a control flow chart of the maintenance operation console proposed by the present invention.

[0057] In the figure: 1. base; 2. column; 3. fixture; 31. L-shaped plate; 32. clamping plate; 33. fixture; 331. positioning piece; 332. locking piece; 4. rotating shaft; 5. brake module; 51. pneumatic brake; 6. control module; 61. foot switch; 62. button; 7. hand wheel; 71. reducer; 8. fixed seat; 81. bearing; 82. damping sleeve; 9. counterweight mechanism; 91. pole; 92. counterweight block; 93. anti-slip piece; 10. self-locking drive mechanism; 11. lifting mechanism; 12. lamp pole; 13. vertical guide rail. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Embodiment 1: See also Figure 1-9 The present invention provides the following technical solution: a maintenance operating table, comprising a base 1, two columns 2 fixedly connected to the base 1, and a fixture 3 horizontally arranged on the upper parts of the two columns 2, each fixture 3 is rotatably connected to the column 2 through a rotating shaft 4, at least one column 2 is provided with a braking module 5 for locking the rotating shaft 4, and the input end of the braking module 5 is connected to a control module 6.

[0060] As an optional implementation scheme of the present invention, the base 1 provides support for the columns 2, and the two columns 2 are fixedly connected to the base 1. The fixed connection methods here include but are not limited to threads, welding, forging integral molding, etc., preferably welding or threads to provide a more reliable fixing effect; when in use, the workpiece that needs to be inspected and polished is fixed on the fixture 3 for inspection and polishing operations; for large and complex workpieces, when it is necessary to inspect and process multiple surfaces of the workpiece, the control module 6 can be used to control the brake module 5 to release the locking state of the rotating shaft 4, so that the rotating shaft 4 is in a freely rotatable state. At this time, the worker can flip the workpiece to a posture that can be inspected and processed, such as an inclined posture, a vertical posture, a posture with the workpiece ground facing up, etc. After the flipping is completed, the control module 6 controls the brake module 5 to switch back to the locked state of the rotating shaft 4, and the worker can perform the inspection and processing operations.

[0061] During the whole process, since the brake module 5 participates in unlocking and locking the rotating shaft 4, the flexibility of the flipping function and the stability of the workpiece after the posture is adjusted can be guaranteed.

[0062] In the present technical solution, the jig 3 therein, since different workpieces may require jigs 3 with different functions and structures, the jig 3 in the present embodiment only refers to the tooling used to install the workpiece, and the specific structure is not limited; the brake module 5 therein mainly refers to a functional component with two states (i.e., a locked state and an unlocked state), the locked state refers to applying a force to the rotating shaft 4 so that the rotating shaft 4 is in a state where it cannot rotate, and the unlocked state is opposite to the locked state. In theory, any kind of lock that can be controlled by instructions and designed for the rotating shaft 4 can be applied to the present embodiment, so the present embodiment does not make specific restrictions on the specific structure of the brake module 5, and all existing technologies that can be controlled by instructions to lock the rotating shaft 4 or unlock the rotating shaft 4 can be regarded as within the protection scope of the brake module 5, and this unlocking / locking method that can be controlled by instructions, compared with the traditional manual locking method such as the knob screw method, is not only more convenient to use and operate, but also the locking effect of the rotating shaft 4 is often more solid, ensuring that workers can smoothly and safely carry out various complex and irregular workpieces during the inspection and processing process.

[0063] Through the above structure, a maintenance operating table with a simple structure and convenient and easy operation is provided. Compared with the flipping method of the existing operating table, it is easier to adapt to the maintenance and processing of complex and irregular large workpieces. On the basis of a high degree of flipping flexibility, the fixing effect of the posture of the workpiece after flipping and adjustment is more stable, ensuring that the workers' maintenance and processing process is smooth and safe. At the same time, the production cost is also significantly lower.

[0064] Embodiment 2: This embodiment includes all the technical features of the embodiment 1, except that: like Figure 1 and Figure 6-8 As shown, the base 1 is U-shaped, and the two columns 2 are fixedly connected to the middle of both sides of the base 1.

[0065] As an optional implementation scheme of the present invention, generally speaking, the distance between the two columns 2 fixedly connected to the base 1 cannot be adjusted, and the user can only use it by customizing or selecting an operating table product of appropriate specifications. At the same time, after the workpiece is installed in this embodiment, its height cannot be adjusted, so the flippable diameter range of the workpiece (the vertical height from the rotating shaft 4 to the ground is the maximum flippable diameter) is fixed. The base 1 is not only a key component for supporting the columns 2 and providing workpiece load, but also affects the occupied area of ​​the site. If the conventional I-shaped connection method of the two columns 2 is adopted, it may affect the maximum flipping diameter of the workpiece (the thickness of the base 1 occupies a part of the maximum flippable diameter), and when the worker needs to perform maintenance operations at close range, for example, the workpiece is in a vertical position, then the traditional I-shaped base 1 will also affect the worker's standing position.

[0066] Therefore, the U-shaped base 1 not only provides the operating table with a wider range of reversible diameters, but also makes it easier for workers to move around the area around the operating table to perform maintenance operations without tripping.

[0067] like Figure 1 As shown, a non-slip pad is provided at the bottom of the base 1.

[0068] Through the above structure, the base 1 is not prone to slipping during the maintenance process, ensuring the safety of the maintenance process.

[0069] like Figure 1 As shown, the bottom of the base 1 is provided with height-adjusting feet.

[0070] Through the above structure, it is possible to cope with uneven sites and ensure that no unnecessary shaking occurs during the maintenance process, thereby affecting the accuracy and safety of manual maintenance processing.

[0071] like Figure 7-8 As shown, the column 2 is provided with a plurality of hooks, wire drums, and placement boxes for mounting maintenance tools, grinding tools, etc.

[0072] Through the above structure, workers can conveniently take out and use various tools needed in the maintenance process, and avoid situations with safety hazards such as wire entanglement, thereby improving the availability and ease of use of the maintenance operating table.

[0073] like Figure 1 As shown, a lamp pole 12 is also provided at the top of the column 2, and a lamp is provided on the lamp pole 12.

[0074] Through the above structure, supplementary lighting from top to bottom is provided without affecting the flipping range of the workpiece, avoiding the situation that only the lighting measures within the site may affect manual observation and thus affect the maintenance process due to insufficient lighting intensity. In addition, such a design cost is relatively low and it is simple and easy to use.

[0075] like Figure 1 and Figure 8-9 As shown, the brake module 5 is in a normally closed state, the brake module 5 includes a pneumatic brake 51 , and the control module 6 includes one of a foot switch 61 and a button 62 .

[0076] As an optional implementation scheme of the present invention, when the angle of the workpiece needs to be adjusted, the rotating shaft 4 is first loosened through the control module 6, and then flipped and adjusted. When the angle is adjusted to a suitable angle, the rotating shaft 4 is locked through the control module 6.

[0077] Among them, the pneumatic brake 51 is mainly selected for its quick response and sensitive response, which is convenient for workers to operate quickly. In addition, the pneumatic brake 51 is generally not large in size and requires a small assembly space. In fact, there is no excessive assembly space on the column 2 itself, so the advantage of selecting the pneumatic brake 51 is more obvious. In addition, for the control module 6, in fact, the foot switch 61 and the button 62 are both more suitable solutions. Among them, it is preferred to press the unlocked and released foot switch 61 or button 62 to ensure that the worker is in a fixed position when performing flipping adjustment. That is to say, the control module 6 is designed to be away from the flipping range of the workpiece. It is best to have a control module 6 on both columns 2 to avoid the workpiece with an unbalanced center of gravity from flipping immediately after the shaft 4 is released, causing harm to the worker, while not affecting the flipping operation of the workpiece. In addition, the control module 6 in this way is more convenient to operate, especially when it is suitable for fine-tuning the flip angle. Fine-tuning can be achieved by lightly stepping on or pressing the control module 6, and it is easy to use.

[0078] Through the above structure, the rotating shaft 4 is unlocked only when the control module 6 is operated, and the response is rapid, thus constructing a maintenance operating table that is very convenient for flipping and adjusting.

[0079] like Figure 1-7 As shown, at least one hand wheel 7 is also included, and the hand wheel 7 is connected to one of the rotating shafts 4 .

[0080] Through the above structure, the design of the handwheel 7 is not only lower in cost, but also in combination with the aforementioned pneumatic brake 51 and the control module 6 that is pressed to release and lock the rotating shaft 4, the adjustment operation is more in line with the design concept of manual maintenance and processing, that is, the flip adjustment is safe, convenient and flexible.

[0081] like Figure 5-6 As shown, the hand wheel 7 is connected to the rotating shaft 4 through a reducer 71 .

[0082] The above structure can greatly reduce the difficulty of workers manually turning over the workpiece.

[0083] Furthermore, the column 2 is also provided with angle markings, and the angle markings at least include a horizontal line.

[0084] Through the above structure, workers can directly and clearly adjust the workpiece to a suitable angle, which is particularly suitable for measuring, observing and operating when grinding the surface of the workpiece.

[0085] like Figure 3-6 As shown, a fixing seat 8 is fixedly connected inside the column 2 , and the rotating shaft 4 is rotatably connected to the fixing seat 8 via two bearings 81 .

[0086] Through the above structure, the bearing 81 makes the rotation of the shaft 4 more flexible and the force more balanced, making it easier for workers to operate when turning and adjusting the workpiece.

[0087] like Figure 4 As shown, a damping sleeve 82 is further provided on one end of the fixing seat 8 close to the hand wheel 7 , and the central axis of the hand wheel 7 is inserted into the damping sleeve 82 and has an interference fit with the damping sleeve 82 .

[0088] Through the above structure, resistance can be provided to the rotation of the rotating shaft 4, and the motion energy can be consumed, so that the worker can more easily adjust the workpiece to a suitable working angle.

[0089] like Figure 2-6 As shown, both fixtures 3 include an L-shaped plate 31 for connecting the rotating shaft 4 and a clamping plate 32 detachably connected to the L-shaped plate 31 , and the clamping plate 32 is provided with a plurality of clamps 33 for fixing the workpiece, and the clamping plate 32 is arranged at an eccentric position of the L-shaped plate 31 .

[0090] As an optional implementation scheme of the present invention, for most large workpieces, if the bottom of the workpiece is directly assembled to align with the extension line of the rotating shaft 4, the center of gravity is obviously unstable and it is very difficult to flip and adjust. Therefore, the use of the L-shaped plate 31 can align the center of gravity of the workpiece with the extension line of the rotating shaft 4 as much as possible. Even if it cannot be fully realized for most complex workpieces, it can at least reduce the difficulty of workers in flipping and adjusting. In addition, the design of the fixture 3 as a split design not only allows only the splint 32 to be disassembled and replaced without removing the connection with the rotating shaft 4, and the operation difficulty during replacement will be much lower. In this way, it is also easier to expose the side surfaces of the two ends of the workpiece to avoid being blocked by the column 2 and affecting the maintenance process.

[0091] The clamping plate 32 can also be designed to be hollowed out, so that when the back of the workpiece is inspected and repaired, the side surfaces at both ends of the workpiece can be more exposed for observation and convenient inspection and repair.

[0092] The above structure makes it easier to replace the jig 3 so as to meet the needs of installing different types of workpieces on the maintenance operation table, and can make the center of gravity of the workpiece closer to the extension line of the rotating shaft 4, greatly reducing the difficulty of workers' flipping and adjustment.

[0093] like Figure 1-8 As shown, the clamp 33 includes a positioning member 331 and a locking member 332 .

[0094] As an optional implementation scheme of the present invention, the positioning member refers to a member used to prevent the workpiece from being offset left and right or front and back after being installed on the clamping plate 32, and the locking member refers to a member that fixes the workpiece to the clamping plate 32. Since there are a large number of positioning members and locking members that can meet the above functions in the prior art, this embodiment does not limit the specific methods of the positioning members and locking members. As long as the clamping plate 32 does not lack the positioning function and the locking function, it falls within the protection scope of this embodiment.

[0095] Through the above structure, the workpiece can be positioned and locked on the clamping plate 32, which is convenient for workers to quickly install the workpiece on the maintenance operating table. The workpiece is not prone to displacement after installation. The structure is also relatively simple and the cost is not too high.

[0096] like Figure 5-7 As shown, a counterweight mechanism 9 is also provided on the L-shaped plate 31 , including a vertical rod 91 fixedly connected to one end of the L-shaped plate 31 close to the column 2 , a plurality of counterweight blocks 92 sleeved on the vertical rod 91 , and an anti-slip member 93 on the vertical rod 91 .

[0097] As an optional implementation scheme of the present invention, when facing complex and irregular large workpieces, the radial loads on the rotating shafts 4 at both ends may be unbalanced, which leads to that when performing flipping adjustment, even if the center of gravity of the two ends of the workpiece is balanced, the center of gravity of the workpiece itself may not be on the extension line of the rotating shaft 4. These situations will cause the moment to be too large, making the flipping adjustment operation more difficult. The method of adding counterweights 92 according to actual conditions can solve this problem well, and this method is not costly. In addition, the anti-slip component 93 locks the vertical rod 91 after the counterweight 92 is added to prevent the counterweight 92 from falling off after the workpiece is flipped 180°, thereby greatly reducing the difficulty of the flipping adjustment operation.

[0098] The anti-dropping member 93 refers to a component that can limit the counterweight block 92 from falling off the vertical rod 91. Specifically, a vertical rod 91 with a thread and an anti-dropping member 93 composed of a nut can be used. Of course, there are far more than one possible ways to use the anti-dropping member 93, which will not be listed here one by one. Any method that can prevent the counterweight block 92 from falling off after the counterweight block 92 is installed falls within the protection scope of this embodiment.

[0099] Through the above structure, when the center of gravity of the workpiece is unbalanced, a counterweight block 92 of appropriate weight can be added according to the actual situation to achieve radial force balance of the rotating shaft 4 at both ends, thereby greatly reducing the difficulty of flipping adjustment operation under low cost conditions. Moreover, this method is easy to cope with various complex and irregular large workpieces and has strong adaptability.

[0100] Embodiment 3: This embodiment at least includes all the technical features in Embodiment 1, except that: like Figure 3-4 and Fig. 9 As shown, a brake module 5 is provided in each of the two columns 2 , and the two brake modules 5 are synchronously controlled by a control module 6 .

[0101] As an optional implementation scheme of the present invention, since the two fixtures 3 act on the two ends of the workpiece, and there is no linkage structure between the two rotating shafts 4 to achieve synchronous movement, the forces on the two end rotating shafts 4 are unbalanced when facing irregular workpieces (especially workpieces whose center of gravity is not on the extension line of the rotating shaft 4). In this case, if only one end of the rotating shaft 4 is provided with a braking module 5, it is very likely that the braking module 5 will not have an adequate locking effect on the rotating shaft 4, thereby causing the risk of wear of the rotating shaft 4 or even the workpiece falling. Even if some braking modules 5 can achieve sufficient locking effect, this is also very likely to cause the suspended part in the middle of the workpiece to twist, thereby causing deformation and damage to the workpiece, or causing the rotating shaft 4 to twist and break.

[0102] Through the above structure, synchronous control of the rotating shafts 4 at both ends can be achieved, so that the rotating shafts 4 at both ends can be locked or unlocked at the same time. On the basis of ensuring the flexibility of flipping adjustment, the locking effect of the workpiece after flipping adjustment is further ensured, which can effectively prevent the rotating shaft 4 from being worn, twisted, broken or the workpiece from being twisted and damaged when the center of gravity of an irregular workpiece is unbalanced.

[0103] Embodiment 4: This embodiment at least includes all the technical features of Embodiment 1, except that: like Figure 7 As shown, the column 2 is also provided with a self-locking drive mechanism 10 for driving the rotating shaft 4 to rotate. The self-locking drive mechanism 10 includes but is not limited to a worm gear mechanism, and the input end of the self-locking drive mechanism 10 is electrically connected to the output end of the control module 6.

[0104] As an optional implementation scheme of the present invention, since the hand wheel 7 always has certain drawbacks, such as when the center of gravity of the workpiece deviates far from the extension line of the rotating shaft 4, and after all, manual turning always brings a certain labor intensity, the self-locking drive mechanism 10 can save manpower input very well, thereby having an applicable space in manual maintenance operations. In actual use, the self-locking drive mechanism 10 should be installed on the rotating shaft 4 at both ends, and combined with the brake module 5 and the control module 6 in Example 1, the two self-locking drive mechanisms 10 can be synchronized, and the control method of the brake module 5 in Example 2 can also be followed.

[0105] Through the above structure, the control module 6 controls the workpiece to flip instead of manually flipping, which can save manpower. For many complex and irregular large workpieces, it can greatly reduce the difficulty of operation during flipping adjustment, and it is not easy to cause wear to the self-locking drive mechanism 10 during maintenance and treatment, and it also provides a more stable locking effect for the workpiece after flipping adjustment.

[0106] Furthermore, an encoder connected to the end of the rotating shaft 4 is also provided on the column 2 , and the encoder is electrically connected to the control module 6 .

[0107] Through the above structure, on the basis of the self-locking drive mechanism 10, a parameter setting function is provided, and the workpiece can be turned over and adjusted more accurately according to the set parameters, which is suitable for use in workpieces with high maintenance accuracy requirements.

[0108] Embodiment 5: This embodiment at least includes all the technical features of Embodiment 1, and is different from Embodiment 4 in that: The self-locking drive mechanism 10 further includes a servo motor.

[0109] Through the above structure, the encoder plus self-locking drive mechanism 10 can be directly replaced by directly using a servo motor, and the workpiece can also be more accurately flipped and adjusted according to the set parameters, which is suitable for use in workpieces with higher maintenance accuracy requirements.

[0110] Embodiment 6: This embodiment at least includes all the technical features of Embodiment 1, and is different from Embodiment 5 in that: like Figure 6 As shown, a fixed seat 8 is provided in the column 2, and the rotating shaft 4 is rotatably connected to the fixed seat 8 through a bearing 81. It also includes a lifting mechanism 11 for driving the rotating shaft 4 to rise and fall in the column 2. The top of the lifting mechanism 11 is fixedly connected to the fixed seat 8, and the input end of the lifting mechanism 11 is electrically connected to the output end of the control module 6. The lifting mechanism 11 includes one of a screw sleeve mechanism and a hydraulic cylinder.

[0111] As an optional implementation scheme of the present invention, when facing some large workpieces with a larger width, the maximum turning diameter may be insufficient. Of course, sometimes it is because the workers cannot reach the inclined workpiece or need to bend over for a long time when inspecting and processing it. The jacking mechanism 11 can drive the rotating shaft 4 to rise and fall in the column 2, so that the vertical distance from the rotating shaft 4 to the ground can be increased, thereby expanding the maximum turning diameter. When in use, first raise the fixed seat 8 through the jacking mechanism 11, and stop when it reaches the turning height position. At this time, the turning method in the above embodiment is used to turn the workpiece over and adjust it. After turning, if the height of the position to be inspected and processed is still too high or too low, continue to control the jacking mechanism 11 to adjust it, which is also more convenient to operate.

[0112] Through the above structure, when the workpiece cannot be turned over smoothly or the height of the maintenance position is not convenient for maintenance, the height of the workpiece can be adjusted, which is very convenient to use and is especially suitable for use in workpieces with larger widths.

[0113] like Figure 6 As shown, a vertical guide rail 13 is also provided in the column 2 , and the fixing seat 8 is slidably connected to the vertical guide rail 13 .

[0114] Through the above structure, both ends of the workpiece can stably move up and down between the two columns 2.

[0115] The working principle and use process of the present invention: After the workpiece is installed by the fixture 3, the workpiece can be inspected and processed; During the maintenance process, workers can use various tools in the maintenance workbench to walk around the workbench to perform manual maintenance. If the workpiece needs to be flipped and adjusted, the control module 6 is first used to control the brake module 5 to release the lock on the rotating shaft 4, and then the workpiece can be flipped. After flipping to the appropriate angle, the control module 6 is used to control the brake module 5 to lock the rotating shaft 4, ensuring that various complex and irregular workpieces can be smoothly and safely handled during the workers' maintenance process.

[0116] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A maintenance operation table, comprising a base, two columns fixedly connected to the base, and jigs arranged horizontally on the upper parts of the two columns, each of which is rotatably connected to the column through a rotating shaft, characterized in that: At least one of the columns is provided with a brake module for locking the rotating shaft, and an input end of the brake module is connected to a control module.

2. The maintenance operation platform according to claim 1, characterized in that: The two columns are each provided with a braking module, and the two braking modules are synchronously controlled by a control module.

3. The maintenance operation platform according to claim 2, characterized in that: The brake module is in a normally closed state, the brake module includes a pneumatic brake, and the control module includes one of a foot switch and a button.

4. The maintenance operation platform according to claim 1, characterized in that: It also includes at least one hand wheel, which is connected to one of the rotating shafts.

5. The maintenance operation platform according to claim 4, characterized in that: A fixing seat is arranged inside the column, and the rotating shaft is rotatably connected to the fixing seat through a bearing.

6. The maintenance operation platform according to claim 5, characterized in that: A damping sleeve is also provided on one end of the fixing seat close to the hand wheel, and the central axis of the hand wheel is inserted into the damping sleeve and has an interference fit with the damping sleeve.

7. The maintenance operation platform according to claim 1, characterized in that: The two jigs described above both include an L-shaped plate for connecting a rotating shaft and a clamping plate detachably connected to the L-shaped plate, the clamping plate is provided with a plurality of clamps for fixing the workpiece, and the clamping plate is arranged at an eccentric position of the L-shaped plate.

8. The maintenance operation platform according to claim 7, characterized in that: The L-shaped plate is also provided with a counterweight mechanism, including a vertical pole fixedly connected to one end of the L-shaped plate close to the column, a plurality of counterweight blocks sleeved on the vertical pole, and an anti-dropping piece on the vertical pole.

9. The maintenance operation platform according to claim 1, characterized in that: The column is also provided with a self-locking drive mechanism for driving the rotating shaft to rotate. The self-locking drive mechanism includes a worm mechanism, and the input end of the self-locking drive mechanism is electrically connected to the output end of the control module.

10. The maintenance operation platform according to any one of claims 1 to 9, characterized in that: It also includes a lifting mechanism for driving the rotating shaft to rise and fall in the column, the input end of the lifting mechanism is electrically connected to the output end of the control module, and the lifting mechanism includes one of a screw sleeve mechanism and a hydraulic cylinder.

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