An assembling auxiliary device for large base

Abstract

The utility model provides a kind of assembling auxiliary device of large base, it is specifically related to equipment installation technical field, to solve the technical problem existing in the process of assembling existing large base.This device includes pedestal, pedestal is equipped with fixed seat, fixed seat is equipped with positioning hole, still include the positioning module of being respectively arranged in the left and right sides of fixed seat, pedestal is equipped with the guide rail sliding block that can slide along X axis and Y axis direction, guide rail sliding block is equipped with the positioning pin that can be adjusted along Z axis direction and the second positioning hole on base left section or base right section is matched;Clamping module, including the support plate connected with positioning module, support plate is equipped with double-acting oil cylinder;Support module, including adjustable support leg set by fixed seat bottom;Control system, control system includes sensor for detecting workpiece position, control module.This device meets the precision control, deformation suppression and efficient construction demand of large base section and top plate, bottom plate assembly.

Description

Technical Field

[0001] This utility model relates to the field of equipment installation technology, and more specifically, to an assembly auxiliary device for a large base. Background Technology

[0002] In the manufacturing and installation of the large double-shell spherical cooler, a core component of high-altitude simulation test benches for aero-engines, the base, as a crucial structure supporting the entire device, directly affects the overall performance of the cooler due to its assembly precision and stability. These bases are mostly enclosed frame structures, welded from thick steel plates, channel steel, and short pipes, primarily made of Q345R steel, and are characterized by their large size, complex structure, and high load-bearing requirements.

[0003] The assembly process involves key steps such as segmented fabrication, top plate docking, bottom plate docking, and overall assembly: First, the base is disassembled into left, middle, and right sections for prefabrication, and each segment frame is welded together with stiffeners to form a closed structure; then, the left and right sections are docked with the top and bottom plates, ensuring the perpendicularity of the sections to the plates, the misalignment of the joints, and the gap deviation; finally, the left and right sections are connected into a whole through the middle section, and deformation is controlled by a gradual uncoiling method.

[0004] The existing assembly process has the following significant problems: 1. Difficulty in controlling positioning accuracy: The docking of segments with the top and bottom plates relies on manual marking and simple tooling, making it difficult to eliminate accumulated errors. 2. Difficulty in suppressing welding deformation: During assembly, dense welding is required at the connection seams between the stiffening plates and the top and bottom plates. Traditional clamping methods cannot provide uniform and continuous constraint force, and uneven welding heat input can easily lead to workpiece warping. 3. Poor tooling adaptability: The dimensions of the base segments vary significantly from project to project, and dedicated tooling cannot be compatible with multiple workpiece specifications. 4. Low assembly efficiency: The positioning adjustment of segments with the top and bottom plates requires multiple people to work together using theodolites and levels for repeated verification, resulting in long docking times per group. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly auxiliary device for a large base, so as to meet the requirements of precision control, deformation suppression and efficient construction of the assembly of large base segments with top plate and bottom plate, and provide a basic guarantee for the safe and stable operation of large double-shell spherical coolers.

[0006] The embodiments of this utility model are achieved through the following technical solutions: An assembly aid for a large base includes a base, a fixing seat on the base, and a positioning hole on the fixing seat that matches a hole in the middle section of the fixing base. The device also includes: The positioning module has two sets, which are respectively set on the left and right sides of the fixed base; the positioning module includes a guide rail slider that can slide along the X-axis and Y-axis directions on the base, and the guide rail slider is provided with a positioning pin that can be adjusted along the Z-axis direction and cooperates with the second positioning hole on the left section or the right section of the base. A clamping module, the clamping module including a support plate connected to a positioning module, the support plate being provided with a double-acting hydraulic cylinder that extends and retracts along the plane of the base; The support module includes adjustable support legs disposed at the bottom of the fixed base; The control system includes a sensor for detecting the position of the workpiece, a control module, and an actuator that is driven and connected to the clamping module. The sensor and the actuator are electrically connected to the control module.

[0007] In some embodiments, the upper surface of the base is provided with a first guide rail extending along the Y-axis, and a slider driven by a first motor is slidably connected to the first guide rail. The slider is provided with a second guide rail extending along the X-axis on the side near the positioning hole. The guide rail slider slides in cooperation with the second guide rail and is driven by a second motor.

[0008] In some embodiments, the top of the guide rail slider is provided with a guide post extending vertically upward, the positioning pin is sleeved on the top of the guide post and slides with the guide post along the Z-axis direction, the head of the positioning pin is a conical structure, and a spring is provided between the inner top end of the positioning pin and the top end of the guide post.

[0009] In some embodiments, the outer peripheral surface of the guide post is provided with a guide key, and the inner wall of the positioning pin is provided with a keyway adapted to the guide key; the guide post is provided with a scale line along the Z-axis direction, and the side of the limiting ring of the positioning pin is provided with an indicator mark that cooperates with the scale line.

[0010] In some embodiments, the support plate is vertically fixed on both sides of the guide rail slider, the top of the support plate is provided with a horizontally extending mounting plate, the cylinder body of the double-acting hydraulic cylinder is fixedly connected to the bottom of the mounting plate, and the piston rod end of the double-acting hydraulic cylinder faces the inner side of the support plate and is connected to an arc-shaped clamping head that is adapted to the outer peripheral surface of the base segment.

[0011] In some embodiments, the adjustable legs of the support module are arranged along the four corners of the bottom of the fixed base, including a screw, an adjusting nut and a support pad. The upper end of the screw extends into the fixed base and is threadedly connected to the base, and the lower end is rotatably connected to the support pad. The adjusting nut is fixedly sleeved on the outside of the screw. The support pad is a circular steel plate with anti-slip texture on its lower surface.

[0012] In some embodiments, the sensors of the control system include multiple laser displacement sensors, which are respectively fixed to the bottom of a first fixing plate on the outer side of the guide rail slider and the bottom of a second fixing plate on the outer side of the fixing base. The detection end of the laser displacement sensor is perpendicular to the top surface of the base, and the first fixing plate and the second fixing plate are disposed on the same horizontal plane. The sensors of the control system also include an infrared sensing component, which includes an infrared signal transmitter disposed on the side of the first fixing plate and an infrared signal receiver disposed on the side of the second fixing plate. The infrared signal transmitter and the infrared signal receiver are matched. The actuator includes a hydraulic control valve group connected to the oil circuit of a double-acting hydraulic cylinder, and the hydraulic control valve group is electrically connected to the control module.

[0013] In some embodiments, a reinforcing brace is provided between the outer side of the support plate of the clamping module and the top plate of the base, and the two ends of the reinforcing brace are welded to the side of the support plate and the top plate of the base, respectively.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: 1. This device, through a combination of three-dimensional precise positioning, symmetrical hydraulic clamping, a wide range of adjustable structures, and automated control, comprehensively addresses the pain points of precision, deformation, adaptability, and efficiency in the assembly of large bases, providing a key guarantee for the stable operation of large double-shell spherical coolers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of an assembly auxiliary device for a large base provided in an embodiment of this utility model during use; Figure 2 A top view of a large base assembly aid device provided in an embodiment of this utility model during use; Figure 3 A front view of an assembly aid device for a large base provided in an embodiment of this utility model; Figure 4 A top view of an assembly aid device for a large base provided in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the guide post and the positioning pin provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the guide post and the positioning pin provided in an embodiment of this utility model.

[0017] Icons: 1. Base; 2. Fixed base; 3. Guide rail slider; 4. Positioning pin; 5. Support plate; 6. Double-acting hydraulic cylinder; 7. First guide rail; 8. Slider; 9. Second guide rail; 10. First motor; 11. Second motor; 12. Guide column; 13. Spring; 14. Limit ring; 15. Guide key; 16. Keyway; 17. Scale line; 18. Indicator; 19. Mounting plate; 20. Arc-shaped clamping head; 21. Screw; 22. Adjusting nut; 23. Support pad; 24. First fixed plate; 25. Second fixed plate; 26. Reinforcing diagonal brace; 27. Left section base; 28. Right section base; 29. ​​Middle section base; 30. Laser displacement sensor; 31. Infrared signal transmitter; 32. Infrared signal receiver. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-6 As shown, the main body of this embodiment is an assembly auxiliary device for a large base, including a base 1, a fixing seat 2 on the base 1, and a positioning hole on the fixing seat 2 that matches the hole in the middle section of the fixing base. The hole and the positioning hole are initially positioned by a pin. The device also includes: The positioning module has two sets, which are respectively set on the left and right sides of the fixed base 2. The positioning module includes a guide rail slider 3 that can slide along the X-axis and Y-axis directions on the base 1. The guide rail slider 3 is provided with a positioning pin 4 that can be adjusted along the Z-axis direction and cooperates with the second positioning hole on the left or right section of the base. The clamping module includes a support plate 5 connected to the positioning module, and the support plate 5 is provided with a double-acting hydraulic cylinder 6 that extends and retracts along the plane of the base 1. The support module includes adjustable support legs disposed at the bottom of the fixed base 2; The control system includes a sensor for detecting the position of the workpiece, a control module, and an actuator that is driven and connected to the clamping module. The sensor and the actuator are electrically connected to the control module.

[0024] Furthermore, the upper surface of the base 1 is provided with a first guide rail 7 extending along the Y-axis direction. A slider 8 driven by a first motor 10 is slidably connected to the first guide rail 7. The slider 8 is provided with a second guide rail 9 extending along the X-axis on the side near the positioning hole. The guide rail slider 3 is slidably engaged with the second guide rail 9 and driven by a second motor 11.

[0025] Furthermore, the top of the guide rail slider 3 is provided with a guide post 12 extending vertically upward. The positioning pin 4 is sleeved on the top of the guide post 12 and slides with the guide post 12 along the Z-axis. Its head is a conical structure. A spring 13 is provided between the inner top of the positioning pin 4 and the top of the guide post 12.

[0026] Furthermore, the outer peripheral surface of the guide post 12 is provided with a guide key 15, and the inner wall of the positioning pin 4 is provided with a keyway 16 adapted to the guide key 15; the guide post 12 is provided with a scale line 17 along the Z-axis direction, and the side of the limiting ring 14 of the positioning pin 4 is provided with an indicator 18 that cooperates with the scale line 17.

[0027] Furthermore, the support plate 5 is vertically fixed on both sides of the guide rail slider 3, and the top of the support plate 5 is provided with a horizontally extending mounting plate 19. The cylinder body of the double-acting oil cylinder 6 is fixedly connected to the bottom of the mounting plate 19. The piston rod end of the double-acting oil cylinder 6 faces the inner side of the support plate 5 and is connected to an arc-shaped clamping head 20 that is adapted to the outer peripheral surface of the base segment.

[0028] Furthermore, the adjustable legs of the support module are arranged along the four corners of the bottom of the fixed base 2, including a screw 21, an adjusting nut 22 and a support pad 23. The upper end of the screw 21 extends into the fixed base 2 and is threadedly connected to the base 1, and the lower end is rotatably connected to the support pad 23. The adjusting nut 22 is fixedly sleeved on the outside of the screw 21. The support pad 23 is a circular steel plate with anti-slip texture on its lower surface.

[0029] Furthermore, the sensors of the control system include multiple laser displacement sensors, which are respectively fixed to the bottom of the first fixing plate 24 on the outer side of the guide rail slider 3 and the bottom of the second fixing plate 25 on the outer side of the fixing base 2. The detection end of the laser displacement sensor 30 is vertically oriented towards the top surface of the base 1. The first fixing plate 24 and the second fixing plate 25 are arranged on the same horizontal plane. The sensors of the control system also include an infrared sensing component, which includes an infrared signal transmitter 31 disposed on the side of the first fixing plate 24 and an infrared signal receiver 32 disposed on the side of the second fixing plate 25. The infrared signal transmitter and the infrared signal receiver are matched. The actuator includes a hydraulic control valve group connected to the oil circuit of the double-acting cylinder 6. The hydraulic control valve group is electrically connected to the control module.

[0030] Furthermore, a reinforcing diagonal brace 26 is provided between the outer side of the support plate 5 of the clamping module and the top plate of the base 1, and the two ends of the reinforcing diagonal brace 26 are welded to the side of the support plate 5 and the top plate of the base 1, respectively.

[0031] The positioning module in this device includes a "guide rail slider 3 that can slide along the X and Y axes" and a "positioning pin 4 that can be adjusted along the Z axis". In addition, it is combined with the adjustable support legs set at the bottom of the fixed base 2, thereby forming a three-way adjustment capability covering the space. The base 1 is provided with a first guide rail 7 in the Y-axis direction, which is driven by the first motor 10 to slide the slider 8. The slider 8 is provided with a second guide rail 9 in the X-axis direction, which is driven by the second motor 11 to slide the guide rail slider 3. The automatic and precise adjustment of the X / Y axes is realized through motor drive, replacing the rough positioning of manual scribing.

[0032] The positioning pin 4 and guide post 12 are designed to cooperate in the following ways: The head of the positioning pin 4 is a conical structure, which can self-center with the second positioning hole of the left base 27 and the right base 28 to eliminate gaps through conical surface contact; the tail spring 13 provides axial preload to ensure tight fit; the guide key 15 and keyway 16 restrict the circumferential rotation of the positioning pin 4 to ensure perpendicularity; the scale line 17 of the guide post 12 cooperates with the indicator 18 of the positioning pin 4, and together with the adjustable support leg set at the bottom of the fixed seat 2, the middle base 29 can be visually and precisely adjusted relative to the left base 27 and the right base 28 in the Z-axis height, solving the problem of difficult control of perpendicularity and gap deviation in the prior art.

[0033] In addition, laser displacement sensors fixed to the bottom of the first and second fixing plates 25 have their detection ends vertically facing the top surface of the base 1, thus enabling real-time acquisition of data on the relative height positions of the base segments and the fixing base 2 (middle base 29). Furthermore, infrared sensing components assist in detecting the alignment accuracy of the left and right base segments with the middle base 29. After the sensor data is transmitted to the control module, it can drive the motor to fine-tune the guide rail slider 3 or the positioning pin 4, forming a closed-loop control of detection, adjustment, and re-detection, avoiding the cumulative errors of repeated manual verification using theodolites and levels.

[0034] In addition, the guide rail slider 3 has support plates 5 vertically fixed on both sides of its sides, and a mounting plate 19 is provided on the top of the support plate 5. The cylinder body of the double-acting hydraulic cylinder 6 is fixed to the bottom of the mounting plate 19, and the piston rod end is connected to an arc-shaped clamping head 20 that is adapted to the outer periphery of the base segment. Furthermore, this symmetrical arrangement can apply symmetrical clamping force to the workpiece, avoiding displacement caused by unilateral force; the arc-shaped clamping head 20 fits against the curved surface of the workpiece, increasing the contact area to reduce local stress and prevent plastic deformation of the thick steel plate.

[0035] In this device, the double-acting cylinder 6 is connected to the control module through a hydraulic control valve group. The clamping force can be dynamically adjusted according to the stress changes during the welding process by feedback from the pressure sensor built into the double-acting cylinder 6. When the welding heat input is uneven, a stable constraint force is maintained to suppress warping deformation.

[0036] In addition, the reinforced diagonal brace 26 can enhance the overall rigidity of the clamping module, prevent the support plate 5 from deforming due to force when the hydraulic cylinder clamps, and ensure that the clamping force is effectively transmitted to the workpiece; the bottom of the fixed base 2 of the support module is provided with adjustable support legs, which are threaded to the base 1 through the screw 21, and the height and the level of the middle base 29 can be adjusted by adjusting the nut 22.

[0037] In addition, the X / Y axis adjustment of the positioning module is achieved through the first and second guide rails 9. The length of the guide rails can be designed according to the maximum segment size. The guide rail slider 3 is driven by a motor to slide, which can adapt to the length differences of the left segment base 27 and the right segment base 28 in different projects, thereby covering multiple segment specifications.

[0038] In summary, this device, through a combination of three-dimensional precise positioning, symmetrical hydraulic clamping, a wide-range adjustable structure, and automated control, comprehensively addresses the pain points of precision, deformation, adaptability, and efficiency in the assembly of large bases, providing crucial assurance for the stable operation of large double-shell spherical coolers.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An assembly auxiliary device for a large base, comprising a base (1), wherein a fixing seat (2) is provided on the base (1), and the fixing seat (2) is provided with a positioning hole that matches the hole in the middle section of the fixing base, characterized in that, Also includes: The positioning module has two sets, which are respectively set on the left and right sides of the fixed base (2); the positioning module includes a guide rail slider (3) that can slide along the X-axis and Y-axis directions on the base (1), and the guide rail slider (3) is provided with a positioning pin (4) that can be adjusted along the Z-axis direction and cooperates with the second positioning hole on the left or right section of the base. The clamping module includes a support plate (5) connected to the positioning module, and the support plate (5) is provided with a double-acting hydraulic cylinder (6) that extends and retracts along the plane of the base (1). The support module includes adjustable legs provided at the bottom of the fixed base (2); The control system includes a sensor for detecting the position of the workpiece, a control module, and an actuator that is driven and connected to the clamping module. The sensor and the actuator are electrically connected to the control module.

2. The assembly auxiliary device for a large base according to claim 1, characterized in that, The upper surface of the base (1) is provided with a first guide rail (7) extending along the Y-axis. A slider (8) driven by a first motor (10) is slidably connected to the first guide rail (7). The slider (8) is provided with a second guide rail (9) extending along the X-axis on the side near the positioning hole. The guide rail slider (3) is slidably engaged with the second guide rail (9) and driven by a second motor (11).

3. The assembly auxiliary device for a large base according to claim 1, characterized in that, The guide rail slider (3) has a guide post (12) extending vertically upward at the top. The positioning pin (4) is sleeved on the top of the guide post (12) and slides with the guide post (12) along the Z-axis. Its head is a conical structure. A spring (13) is provided between the inner top of the positioning pin (4) and the top of the guide post (12).

4. The assembly auxiliary device for a large base according to claim 3, characterized in that, The outer circumferential surface of the guide post (12) is provided with a guide key (15), and the inner wall of the positioning pin (4) is provided with a keyway (16) that matches the guide key (15); the guide post (12) is provided with a scale line (17) along the Z-axis direction, and the side of the limiting ring (14) of the positioning pin (4) is provided with an indicator (18) that matches the scale line (17).

5. The assembly auxiliary device for a large base according to claim 1, characterized in that, The two sides of the guide rail slider (3) are respectively vertically fixed with the support plate (5). The top of the support plate (5) is provided with a horizontally extending mounting plate (19). The cylinder body of the double-acting oil cylinder (6) is fixedly connected to the bottom of the mounting plate (19). The piston rod end of the double-acting oil cylinder (6) faces the inner side of the support plate (5) and is connected with an arc-shaped clamping head (20) that is adapted to the outer peripheral surface of the base segment.

6. The assembly auxiliary device for a large base according to claim 1, characterized in that, The adjustable legs of the support module are arranged along the four corners of the bottom of the fixed seat (2), including a screw (21), an adjusting nut (22) and a support pad (23). The upper end of the screw (21) extends into the fixed seat (2) and is threadedly connected to the base (1), and the lower end is rotatably connected to the support pad (23). The adjusting nut (22) is fixedly sleeved on the outside of the screw (21). The support pad (23) is a circular steel plate with anti-slip texture on its lower surface.

7. The assembly auxiliary device for a large base according to claim 1, characterized in that, The sensors of the control system include multiple laser displacement sensors (30), which are fixed to the bottom of the first fixing plate (24) on the outer side of the guide rail slider (3) and the bottom of the second fixing plate (25) on the outer side of the fixing base (2). The detection end of the laser displacement sensor is perpendicular to the top surface of the base (1). The first fixing plate (24) and the second fixing plate (25) are set on the same horizontal plane. The sensors of the control system also include an infrared sensing component, which includes an infrared signal transmitter (31) on the side of the first fixing plate (24) and an infrared signal receiver (32) on the side of the second fixing plate (25). The infrared signal transmitter (31) and the infrared signal receiver (32) are matched. The actuator includes a hydraulic control valve group connected to the oil circuit of the double-acting cylinder (6). The hydraulic control valve group is electrically connected to the control module.

8. The assembly auxiliary device for a large base according to claim 1, characterized in that, A reinforcing brace (26) is provided between the outer side of the support plate (5) of the clamping module and the top plate of the base (1). The two ends of the reinforcing brace (26) are welded to the side of the support plate (5) and the top plate of the base (1) respectively.

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