Automatic weighing and sequencing equipment for engine blades

Abstract

The utility model discloses automatic weighing and sequencing equipment for engine blades, which comprises an operating platform and a robot arranged beside the operating platform, the operating platform is provided with a weighing station, and the robot is used for feeding and discharging materials to the weighing station. The robot comprises a main body and a flexible clamping mechanism connected with the tail end of the main body. According to the scheme, the flexible clamping mechanism is in non-rigid contact with the blade, so that the blade is prevented from being damaged by the clamping mechanism, meanwhile, the risk that the blade is rigidly impacted with other parts of equipment is reduced, and the blade and the equipment are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of engine blade detection, in particular to an automatic weighing and sorting device for engine blades. Background Art

[0002] Aircraft engines are one of the most important parts of aircraft. Engine blades are mainly used to compress air and provide continuous power for aircraft. Engine blades will vibrate during operation. If the weight of the blades in the engine is unbalanced, the vibration will be more intense. Due to the harsh working environment and complex loads of blades, in order to avoid problems such as weight imbalance caused by appearance defects of blades that affect flight safety, it is necessary to conduct appearance inspections of engine blades regularly (or after a certain number of kilometers), weigh them, and sort them.

[0003] In the past, the aviation manufacturing industry weighed and sorted engine blades manually. Today, in order to reduce the labor intensity of operators, improve the efficiency of blade weighing and sorting, and reduce the error rate of personnel operations, some equipment for automatic weighing and sorting of blades has appeared on the market. Due to the heavy weight of the blades, if there is too much rigid impact with the equipment during the automatic weighing and sorting process, it is easy to cause damage to the blades or equipment. Utility Model Content

[0004] In order to overcome the defects in the prior art, an embodiment of the utility model provides an automatic weighing and sorting device for engine blades, wherein the flexible clamping mechanism has non-rigid contact with the blades, thereby avoiding damage to the blades by the clamping mechanism and reducing the risk of rigid collision between the blades and other parts of the device, thereby protecting both the blades and the device.

[0005] An embodiment of the present application discloses: an automatic weighing and sorting device for engine blades, comprising: an operating table and a robot arranged next to the operating table, the operating table is provided with a weighing station, the robot is used to load and unload materials to the weighing station, and the robot comprises a main body and a flexible clamping mechanism connected to the end of the main body.

[0006] Specifically, the flexible clamping mechanism includes a first mounting plate, a second mounting plate, a third mounting plate, a first clamping unit, a plurality of first connecting rods, a plurality of limit members and a plurality of springs; the first mounting plate is used to be connected to the end of the robot body; one end of the first connecting rod is connected to the first mounting plate, and the other end is connected to the second mounting plate; the third mounting plate is sleeved on the plurality of first connecting rods and can move axially along the first connecting rods, and the first clamping unit is fixed on the third mounting plate; the plurality of limit members are respectively sleeved on the plurality of first connecting rods and are located on the side of the third mounting plate away from the second mounting plate; the plurality of springs are respectively sleeved on the plurality of first connecting rods and each spring is located between the third mounting plate and the corresponding limit member.

[0007] Specifically, a plurality of linear bearings are also installed on the third mounting plate, and the mounting plate is connected to the first connecting rod through the linear bearings.

[0008] Specifically, an industrial camera is also connected to the first mounting plate.

[0009] Specifically, the weighing station includes a bracket and an electronic scale arranged on the bracket.

[0010] Specifically, the weighing station further includes at least two screw motors and a support platform. The screw motors are distributed on both sides of the electronic scale. A lifting platform is connected to the output shaft of the screw motor. The support platform is detachably connected to the lifting platform.

[0011] Specifically, the support platform includes a first support plate, a second support plate and a plurality of second connecting rods, one end of the connecting rod is connected to the first support plate and the other end is connected to the second support plate, the first support plate is used to contact the electronic scale, and the second support plate is used to support the blades.

[0012] Specifically, the weighing station further includes two electric cylinders and two second clamping units. The two electric cylinders are arranged on the bracket and located on both sides of the support platform. A second clamping unit is connected to the output shaft of each electric cylinder.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. Since the force between the flexible clamping mechanism and the end of the robot is not rigidly transmitted after the connection, when the robot clamps the blade to pick it up, the flexible clamping mechanism and the blade are in non-rigid contact, which avoids the clamping mechanism from damaging the blade and reduces the risk of rigid collision between the blade and other parts of the equipment, thus protecting both the blade and the equipment.

[0015] 2. The support platform is raised and lowered by a lifting platform to prevent the electronic scale from being hit when the support platform receives the blades.

[0016] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an automatic weighing and sorting device for engine blades in an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the flexible clamping mechanism in the embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of an industrial camera connected to a first mounting plate in an embodiment of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a weighing station in an embodiment of the utility model.

[0022] The figure marks of the above drawings are: 1. Weighing station; 11. Bracket; 12. Electronic scale; 13. Screw motor; 14. Support table; 141. First support plate; 142. Second support plate; 143. Second connecting rod; 15. Lifting platform; 16. Electric cylinder; 17. Second clamping unit; 2. Robot; 21. Flexible clamping mechanism; 211. First mounting plate; 212. Second mounting plate; 213. Third mounting plate; 214. First clamping unit; 215. First connecting rod; 216. Limiting member; 217. Spring; 218. Linear bearing; 3. Industrial camera. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "fixed", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "below" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0027] In addition, the terms "first", "second", etc. are only used to distinguish in description and have no special meaning.

[0028] like Figure 1 As shown, the engine blade automatic weighing and sorting device of this embodiment mainly includes an operating table and a robot 2 arranged next to the operating table. The operating table is provided with a weighing station 1, and the end of the main body of the robot 2 is connected to a flexible clamping mechanism 21, and the main body of the robot 2 controls the flexible clamping mechanism 21 to load and unload materials to the weighing station 1.

[0029] With the above scheme, since the force between the flexible clamping mechanism 21 and the end of the robot 2 is not rigidly transmitted after being connected, when the robot 2 clamps the blade to pick it up and place it, the flexible clamping mechanism 21 and the blade are in non-rigid contact, which avoids the clamping mechanism from damaging the blade, and reduces the risk of rigid collision between the blade and other parts of the equipment, thereby protecting both the blade and the equipment.

[0030] like Figure 2 As shown, the flexible clamping mechanism 21 of this embodiment specifically includes a first mounting plate 211, a second mounting plate 212, a third mounting plate 213, a first clamping unit 214, a plurality of first connecting rods 215, a plurality of stoppers 216 and a plurality of springs 217. Among them, the first mounting plate 211 is used to connect with the end of the robot 2 body, and the plurality of first connecting rods 215 are used to connect the first mounting plate 211 and the second mounting plate 212. Specifically, one end of each first connecting rod 215 is connected to the first mounting plate 211, and the other end is connected to the second mounting plate 212. The third mounting plate 213 is sleeved on the plurality of first connecting rods 215 and can move along the axial direction of the first connecting rods 215. The first clamping unit 214 is fixedly connected to the third mounting plate 213. The plurality of stoppers 216 are respectively sleeved on the plurality of first connecting rods 215, and the stoppers 216 are located on the side of the third mounting plate 213 away from the second mounting plate 212. The stoppers 216 can specifically be snap rings. A plurality of springs 217 are respectively sleeved on a plurality of first connecting rods 215, and each spring 217 is located between the third mounting plate 213 and the corresponding stopper 216. With the above solution, when the first clamping unit 214 of the flexible clamping mechanism 21 (or the blade clamped by the first clamping unit 214) is subjected to an external force, the first clamping unit 214 moves upward along the axis of the first connecting rod 215, and the third mounting plate 213 that moves therewith contacts with the spring 217, and the spring 217 is compressed to provide elastic force to the first clamping unit 214, thereby preventing the first clamping unit 214 from being subjected to a rigid force.

[0031] Preferably, if Figure 2 As shown, a plurality of linear bearings 218 are also mounted on the third mounting plate 213 , and each linear bearing 218 is sleeved on a first connecting rod 215 , and is used to connect the first connecting rod 215 and the third mounting plate 213 , so as to improve the movement stability of the third mounting plate 213 .

[0032] like Figure 3 As shown, an industrial camera 3 is also connected to the first mounting plate 211, and the industrial camera 3 can detect defects on the blades.

[0033] like Figure 4 As shown, the weighing station 1 of this embodiment mainly includes a bracket 11 and an electronic scale 12 arranged on the bracket 11 .

[0034] Furthermore, the weighing station 1 also includes at least two screw motors 13 and a support platform 14. The two screw motors 13 are distributed on both sides of the electronic scale 12, and a lifting platform 15 is connected to the output shaft of each screw motor 13, and the support platform 14 is detachably connected to the lifting platform 15. Specifically, the support platform 14 and the lifting platform 15 are only connected by contact rather than by fasteners. When the screw motor 13 drives the lifting platform 15 to rise to contact with the support platform 14, the support platform 14 is raised to a preset position to wait for the robot 2 to place the blade on the support platform 14; when the screw motor 13 drives the lifting platform 15 to descend, the support platform 14 descends accordingly. When the support platform 14 descends to contact with the electronic scale 12, the screw motor 13 continues to drive the lifting platform 15 to descend so that the lifting platform 15 is completely separated from the support platform 14, that is, the support platform 14 is freely placed on the electronic scale 12, so as to avoid the lifting platform 15 exerting force on the electronic scale 12 during the weighing process, affecting the weighing accuracy. By adopting the above solution, when it is necessary to receive the blade, the support platform 14 is raised to separate from the electronic scale 12, which can avoid the force generated by the robot 2 on the support platform 14 at the moment of placing the blade acting on the electronic scale 12 and making the electronic scale 12 easily damaged, thereby playing a protective role for the equipment.

[0035] like Figure 4 As shown, the support platform 14 may include a first support plate 141, a second support plate 142 and a plurality of second connecting rods 143. The plurality of second connecting rods 143 are used to connect the first support plate 141 and the second support plate 142. The first support plate 141 is located below the second support plate 142 and is used to contact the electronic scale 12 and the lifting platform 15. The second support plate 142 is used to support the blade, or in other words, the second support plate 142 is used to support the carrier that carries the blade. By adopting the above solution, the lifting stroke of the lifting platform 15 can be saved.

[0036] Furthermore, since the support platform 14 is in a raised state when receiving the blade, in order to improve its stability and prevent it from shaking when receiving the blade, the weighing station 1 of this embodiment also includes two electric cylinders 16 and two second clamping units 17. The two electric cylinders 16 are arranged on the bracket 11 and located on both sides of the support platform 14, and a second clamping unit 17 is connected to the output shaft of each electric cylinder 16. When the support platform 14 is raised to receive the blade, the electric cylinders 16 on both sides respectively drive the corresponding second clamping units 17 to move toward the support platform 14, and the two second clamping units 17 jointly clamp the second connecting rod 143 of the support platform 14 to fix the support platform 14.

[0037] To sum up, the working process of the automatic weighing and sorting equipment for engine blades in this embodiment is as follows: the screw motor 13 drives the lifting platform 15 to rise until the support platform 14 is lifted to a preset position, the electric cylinder 16 drives the second clamping mechanism to clamp the second connecting rod 143 of the support platform 14, and the robot 2 places the blade on the support platform 14; then, the electric cylinder 16 drives the second clamping mechanism to withdraw from the second connecting rod 143, the screw motor 13 drives the lifting platform 15 to descend, and the support platform 14 subsequently descends until it contacts the electronic scale 12, and the screw motor 13 continues to drive the lifting platform 15 to descend until it is completely separated from the support platform 14; after weighing is completed, the robot 2 takes the blade away.

[0038] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An automatic weighing and sorting device for engine blades, characterized in that: include: An operating table and a robot arranged next to the operating table, the operating table is provided with a weighing station, the robot is used to load and unload materials to the weighing station, the robot includes a main body and a flexible clamping mechanism connected to the end of the main body; the flexible clamping mechanism includes a first mounting plate, a second mounting plate, a third mounting plate, a first clamping unit, a plurality of first connecting rods, a plurality of limiting members and a plurality of springs; the first mounting plate is used to be connected to the end of the robot main body; one end of the first connecting rod is connected to the first mounting plate, and the other end is connected to the second mounting plate; the third mounting plate is sleeved on the plurality of the first connecting rods and can move along the axial direction of the first connecting rods, and the first clamping unit is fixed on the third mounting plate; the plurality of limiting members are respectively sleeved on the plurality of the first connecting rods and are located on the side of the third mounting plate away from the second mounting plate; the plurality of springs are respectively sleeved on the plurality of the first connecting rods and each spring is located between the third mounting plate and the corresponding limiting member.

2. The automatic weighing and sorting equipment for engine blades according to claim 1, characterized in that: A plurality of linear bearings are also mounted on the third mounting plate, and the mounting plate is connected to the first connecting rod via the linear bearings.

3. The automatic weighing and sorting equipment for engine blades according to claim 1, characterized in that: The first mounting plate is also connected to an industrial camera.

4. The automatic weighing and sorting equipment for engine blades according to claim 1, characterized in that: The weighing station comprises a bracket and an electronic scale arranged on the bracket.

5. The automatic weighing and sorting equipment for engine blades according to claim 4, characterized in that: The weighing station also includes at least two screw motors and a support platform. The screw motors are distributed on both sides of the electronic scale. The output shafts of the screw motors are connected to a lifting platform. The support platform is detachably connected to the lifting platform.

6. The automatic weighing and sorting equipment for engine blades according to claim 5, characterized in that: The support platform includes a first support plate, a second support plate and a plurality of second connecting rods, one end of the connecting rod is connected to the first support plate and the other end is connected to the second support plate, the first support plate is used to contact the electronic scale, and the second support plate is used to support the blades.

7. The automatic weighing and sorting equipment for engine blades according to claim 6, characterized in that: The weighing station further comprises two electric cylinders and two second clamping units. The two electric cylinders are arranged on the bracket and located on both sides of the support platform. A second clamping unit is connected to the output shaft of each electric cylinder.

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