Exhaust pipe support positioning device and method

Abstract

The application discloses an exhaust pipe frame support positioning device and method, and belongs to the technical field of mechanical assembly. The technical scheme adopted by the application is as follows: an exhaust pipe frame support positioning device, the positioning device comprises a platform, two groups of first support fixing units are symmetrically arranged on one side of the platform, one group of second support fixing units is arranged on the other side of the platform, and the two groups of first support fixing units and the group of second support fixing units are in triangular distribution; the floating support unit is used for self-adapting adjustment of the support height and cooperation with the pressing part to form a locking mechanism, the height deviation adaptability and stability problems in the support positioning of the exhaust pipe frame are effectively solved, the self-adapting support capacity is achieved, the local size deviation of the exhaust pipe frame can be automatically adapted, and the support height is ensured to be consistent; the floating support part is cooperated with the floating pressing part to form the locking mechanism, the integration of the support and the pressing is realized, and the positioning precision and reliability are improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology, specifically relating to an exhaust pipe support and positioning device and method. Background Technology

[0002] In the exhaust systems of automobiles, construction machinery, and other equipment, the exhaust pipe rack serves as the core mounting carrier for exhaust pipe components. Its positioning accuracy directly determines the assembly quality, sealing performance, and overall operational stability of the exhaust pipe components. Exhaust pipe racks generally adopt a rectangular frame structure with symmetrically arranged connecting seats for installing exhaust pipe components on both sides along the length direction. The corresponding connecting seats are reinforced by crossbeams, forming a structural form that combines support strength and ease of installation. During the assembly of exhaust pipe components, the exhaust pipe rack must first be accurately and stably positioned to ensure that the mounting reference surfaces of each connecting seat remain flat and that positional deviations meet assembly requirements. This prevents problems such as misalignment, sealing failure, or vibration and abnormal noise during subsequent exhaust pipe component assembly.

[0003] However, existing exhaust pipe support and positioning technologies have significant drawbacks, making it difficult to meet the demands of high-precision assembly. Traditional devices primarily rely on fixed support structures. Their design is based on the dimensions of a specific exhaust pipe support, setting several fixed support points and rigid clamping mechanisms on a platform, achieving positioning through mechanical limiting or simple hydraulic clamping. The fixed height of the support points in such devices cannot accommodate localized dimensional deviations in the exhaust pipe support caused by machining errors, welding deformation, or material stress release. When there is a slight height error in the exhaust pipe support, some support points become suspended or excessively compressed, leading to uneven stress. This not only disrupts the consistency of the positioning reference but also easily causes secondary deformation of the exhaust pipe support, thereby affecting the positional accuracy of the connecting seat.

[0004] Meanwhile, traditional support systems employ uniformly distributed multi-point supports, lacking stability design specific to rectangular frame structures. Since the ends of the rectangular frame exhaust pipe bracket are the main stress areas, uniform support struggles to establish a stable positioning benchmark, making it prone to displacement during assembly or under external interference, resulting in decreased positioning accuracy. Traditional clamping mechanisms typically apply rigid pressure in a single direction, lacking coordination with the support structure. Excessive clamping force can cause localized dents in the exhaust pipe bracket, while insufficient clamping force fails to guarantee reliable fixation and achieve an integrated locking effect of support and clamping.

[0005] Traditional devices lack comprehensive horizontal and vertical positioning design, with some only providing vertical support and lacking effective horizontal limiting mechanisms. This makes the exhaust pipe bracket prone to lateral shifting during assembly. Inaccurate clamping force control can easily lead to frame deformation due to localized stress concentration. The operation process lacks an adaptive adjustment mechanism, relying on manual calibration for exhaust pipe bracket placement, which is inefficient and prone to human error. Poor coordination between support and clamping actions often results in clamping before the support is stable, further amplifying positioning errors. This fails to meet the high-precision, high-efficiency assembly requirements of modern manufacturing. In summary, existing technologies suffer from systemic deficiencies in positioning accuracy, adaptability, support stability, deformation control, and operational efficiency. There is an urgent need to overcome the limitations of fixed supports and develop new support and positioning solutions with adaptive support capabilities, comprehensive positioning functions, and stable and reliable characteristics. Summary of the Invention

[0006] The present invention provides an exhaust pipe support and positioning device and method to solve at least one of the above-mentioned technical problems.

[0007] The technical solution adopted in this invention is as follows:

[0008] An exhaust pipe rack support and positioning device is provided for supporting and positioning an exhaust pipe rack. The exhaust pipe rack is a rectangular frame structure with several connecting seats for installing exhaust pipe components symmetrically arranged on both sides along its length. A crossbeam is provided between two corresponding connecting seats in the lateral direction. The positioning device includes a platform. Two sets of first support fixing units are symmetrically arranged on one side of the platform, and a set of second support fixing units is arranged on the other side. The two sets of first support fixing units and the set of second support fixing units are triangularly distributed to support both ends of the exhaust pipe rack.

[0009] It also includes several floating support units, which are spaced apart on the platform and located directly below the main structure or crossbeam of the exhaust pipe frame. Each floating support unit has a floating support part and a floating clamping part that cooperates with the floating support part to form a locking mechanism.

[0010] Furthermore, this application also proposes that the floating support includes a support cylinder, and the output end of the support cylinder is provided with a floating support, and the floating support is driven by the hydraulic oil circuit in the support cylinder to achieve lifting and lowering adjustment.

[0011] Furthermore, this application also proposes that the floating clamping part is disposed on the side of the floating support part, and is used to apply a downward clamping force to the main structure or crossbeam of the exhaust pipe rack;

[0012] The floating clamping part includes a clamping cylinder. The output end of the clamping cylinder is provided with a telescopic rod. The telescopic rod is raised and lowered by the hydraulic oil circuit in the clamping cylinder. A second connecting rod is hinged to the clamping cylinder. The end of the second connecting rod away from the clamping cylinder is hinged to the middle of the second swing arm. The outer end of the telescopic rod is hinged to one end of the second swing arm. The other end of the second swing arm is provided with a clamping support that is directly opposite to the floating support.

[0013] Alternatively, a clamping seat can be directly fixed to the outer end of the telescopic rod, the clamping seat being used to clamp the main structure or crossbeam of the exhaust pipe frame.

[0014] Furthermore, this application also proposes a hydraulic control system, which controls the hydraulic circuits within the support cylinders and clamping cylinders. Initially, each floating support is in an extended position. As the two ends of the exhaust pipe frame are gradually placed on the first and second support fixing units, the main structure and crossbeam of the exhaust pipe frame press down on the floating supports below, causing each floating support to adaptively match the support height of its corresponding contact area. After adaptation, the hydraulic control system closes the hydraulic circuits within each support cylinder, locking the support height of each floating support. Subsequently, the hydraulic control system drives the hydraulic circuits within the clamping cylinders to open, driving the telescopic rod to extend and push the clamping support of the second swing arm to clamp the main structure or crossbeam of the exhaust pipe frame.

[0015] Furthermore, this application also proposes a control unit, which includes an instruction output terminal and a pressure detection system. The instruction output terminal is used to preset the target output pressure of each clamping support and to regulate the actual output pressure of the clamping support through a hydraulic control system. The pressure detection system is used to detect the actual output pressure of each clamping support in real time.

[0016] Furthermore, this application also proposes that it includes several auxiliary positioning mechanisms, which are arranged at intervals on the platform along the length of the exhaust pipe frame. Each auxiliary positioning mechanism includes a first positioning seat and a limiting seat fixedly connected to the platform. The first positioning seat and the limiting seat are arranged parallel to each other. The limiting seat is provided with a limiting cylinder. The output end of the limiting cylinder is provided with a push rod. The push rod is arranged opposite to the first positioning seat to lock and fix the main structure of the exhaust pipe frame from the horizontal direction.

[0017] Furthermore, this application also proposes that the first support fixing unit includes a fixed support base, a fixed oil cylinder is provided on the side of the fixed support base, a drive rod is provided at the output end of the fixed oil cylinder, the drive rod is adjusted for lifting and lowering through the hydraulic oil circuit in the fixed oil cylinder, a first connecting rod is hinged to the fixed oil cylinder, a first swing arm is hinged to the end of the first connecting rod away from the fixed oil cylinder, and the first connecting rod is hinged to the middle of the first swing arm, the outer end of the drive rod is hinged to one end of the first swing arm, and a pressure block is provided at the other end of the first swing arm, the pressure block is arranged opposite to the fixed support base.

[0018] Furthermore, this application also proposes that the second support fixing unit includes a support positioning block, the two fixed support seats and the support positioning block are arranged in a triangle, a telescopic hydraulic cylinder is provided on the side of the support positioning block, and a pressure plate is fixedly connected to the output end of the telescopic hydraulic cylinder. The pressure plate is directly opposite the support positioning block to form a vertical clamping structure for the exhaust pipe bracket.

[0019] Furthermore, this application also proposes that it further includes a guide part and a positioning part. The guide part is arranged along the length direction of the exhaust pipe frame and fixed on the platform for guiding and positioning during the installation of the exhaust pipe frame. The positioning part includes a second positioning seat, which is fixedly connected to one side edge of the platform. The second positioning seat is provided with a positioning cylinder, and the output end of the positioning cylinder is provided with an auxiliary positioning block for positioning the end of the exhaust pipe frame.

[0020] A method for supporting and positioning an exhaust pipe rack, used to support and position a rectangular frame-type exhaust pipe rack equipped with a connecting seat and a crossbeam, includes the following steps:

[0021] S1: Reference guidance and positioning, move the exhaust pipe bracket along the guide part on the platform to the preset installation area, start the positioning cylinder of the positioning part to drive the auxiliary positioning block to extend, limit the end of the exhaust pipe bracket, and lock its reference position in the length direction.

[0022] S2: A triangular support reference is established. The corresponding transmission structure is driven by the fixed cylinders of the two sets of first support fixing units, which drive the pressure block to press down and cooperate with the fixed support seat to vertically clamp the two sides of one end of the exhaust pipe frame. At the same time, the pressure plate is driven by the telescopic hydraulic cylinder of the second support fixing unit and cooperates with the support positioning block to vertically clamp the other end of the exhaust pipe frame, so that the two sets of first support fixing units and second support fixing units are triangularly distributed to form a stable support reference.

[0023] S3: Floating support adaptive adjustment. The main structure of the exhaust pipe frame and the crossbeam naturally press down on the corresponding floating support of the floating support part. The hydraulic oil circuit in the support cylinder is adaptively adjusted so that each floating support is in close contact with the contact area of ​​the exhaust pipe frame. After each floating support is in place, the hydraulic control system closes the hydraulic oil circuit of each support cylinder and locks the support height of each floating support.

[0024] S4: Locking and fixing, the hydraulic control system drives the pressing cylinder of each floating pressing part, drives the corresponding transmission structure through the telescopic rod, or directly drives the pressing seat / pressing support to press down, and cooperates with the corresponding floating support to form a locking mechanism to vertically lock the main structure and crossbeam of the exhaust pipe rack.

[0025] S5: Horizontal auxiliary positioning, activate the limit cylinders of each auxiliary positioning mechanism, drive the push rod to extend towards the first positioning seat, cooperate with the first positioning seat to clamp and limit the main structure of the exhaust pipe frame from the horizontal direction, and finally complete the full-dimensional support and positioning of the exhaust pipe frame.

[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by this invention are as follows:

[0027] 1. This application effectively solves the problem of uneven force distribution caused by local dimensional deviations in the positioning of exhaust pipe supports, avoiding the phenomenon of some support points being suspended or excessively compressed in traditional fixed support structures, and fundamentally eliminating the risk of secondary deformation caused by uneven force distribution. Simultaneously, the triangularly distributed support units provide reliable support stability, ensuring that the stress areas at both ends of the exhaust pipe support form a stable positioning benchmark and preventing slight displacement during assembly. The adaptive adjustment mechanism of the floating support units achieves precise fitting of the main structure and crossbeams of the exhaust pipe support, completing height adaptation without manual calibration, significantly improving the accuracy and operational efficiency of the positioning process. Finally, through the locking cooperation between the floating support and the floating clamping parts, the device achieves reliable positioning of the exhaust pipe support in all dimensions, meeting the requirements of high-precision assembly.

[0028] 2. The floating support is raised and lowered by the hydraulic oil circuit in the support cylinder. When the exhaust pipe frame is pressed down, the hydraulic oil flows automatically according to the load distribution, causing the floating support to move down until all contact points are evenly stressed. Then the hydraulic oil circuit of the support cylinder is closed to lock the height, ensuring support stability and positioning accuracy. This process, together with the first support fixing unit, the second support fixing unit and the floating clamping part on the platform, forms a complete support system, effectively solving the problem of uneven support caused by local dimensional deviations.

[0029] 3. The hydraulic circuit within the clamping cylinder drives the telescopic rod for height adjustment. The linear motion of the telescopic rod, via the hinged connection of the second link and the second swing arm, is converted into the swinging motion of the clamping support, causing the clamping support and the floating support to form a direct clamping force, thereby applying a downward clamping force. When a direct connection to the clamping support is used, the hydraulic thrust is directly transmitted to the clamping support through the telescopic rod, achieving immediate application of the clamping force. This design, through the lever principle of the linkage mechanism or the direct clamping path, allows the clamping force to be dynamically adjusted according to the actual structural strength of the exhaust pipe frame, avoiding localized high-pressure concentrations caused by improper force values, while ensuring a uniform distribution of the clamping force in the contact area.

[0030] 4. This application realizes the automated control of the exhaust pipe bracket support positioning process, effectively solving the problem of adaptive adjustment relying on manual operation and significantly improving operation efficiency; at the same time, by precisely controlling the timing relationship between support height locking and clamping actions, it ensures that clamping force is applied only after the support is completely stable, avoiding local deformation of the exhaust pipe bracket or displacement of the positioning reference caused by premature clamping, greatly improving positioning accuracy and reliability, and providing a stable and reliable positioning basis for the high-precision assembly of subsequent exhaust pipe components.

[0031] 5. This application achieves precise setting and dynamic monitoring of the clamping force, effectively avoiding deformation of the exhaust pipe frame caused by local stress concentration, while ensuring the uniformity of the clamping force and the reliability of the fixation, significantly improving the accuracy of the exhaust pipe frame support positioning and the assembly quality.

[0032] 6. By arranging the auxiliary positioning mechanisms at intervals along the length of the exhaust pipe frame, the first positioning seat serves as a fixed reference point. The limiting cylinder on the limiting seat drives the push rod to move horizontally towards the first positioning seat. When the push rod and the first positioning seat are directly opposite each other, they form a bidirectional opposing clamping force field. This geometric layout ensures that the limiting force is uniformly transmitted along the horizontal axis, avoiding stress concentration caused by angular deviations. At the same time, the interval arrangement allows each auxiliary positioning mechanism to act independently on different sections of the frame. When the exhaust pipe frame exhibits a tendency for lateral displacement during assembly, the nearest auxiliary positioning mechanism immediately implements constraint through the synergistic action of the push rod and the first positioning seat, thereby eliminating horizontal degrees of freedom and suppressing overall offset.

[0033] 7. The arrangement direction of the guide is consistent with the length direction of the exhaust pipe frame, so that the exhaust pipe frame can be naturally aligned during movement and avoid lateral displacement; the second positioning seat is fixed to one side edge of the platform, so that the auxiliary positioning block can accurately correspond to the end position of the exhaust pipe frame; the positioning cylinder adjusts the extension of the auxiliary positioning block by hydraulic drive to adapt to the end size or slight deformation of exhaust pipe frames of different specifications, thereby achieving precise locking of the end position. Attached Figure Description

[0034] Figure 1This is a schematic diagram of the assembly state of the exhaust pipe bracket and the support positioning device in this invention;

[0035] Figure 2 This is a schematic diagram of the exhaust pipe bracket and support positioning device in this invention;

[0036] Figure 3 This is a schematic diagram of the supporting positioning device in this invention;

[0037] Figure 4 This is a top view of the support and positioning device in this invention;

[0038] Figure 5 This is a top view of the exhaust pipe bracket and support positioning device in the assembly state of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the first support and fixing unit in this invention;

[0040] Figure 7 This is a schematic diagram of the auxiliary positioning mechanism in this invention;

[0041] Figure 8 This is a schematic diagram of the floating support unit in this invention.

[0042] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0043] In the attached diagram:

[0044] 1. Platform; 2. Fixed support seat; 21. Support positioning block; 3. Guide part; 41. Fixed cylinder; 42. Drive rod; 43. First swing arm; 44. First connecting rod; 5. Support cylinder; 51. Floating support; 52. Clamping cylinder; 521. Telescopic rod; 53. Second swing arm; 531. Clamping support; 54. Second connecting rod; 6. Limit seat; 61. First positioning seat; 62. Limit cylinder; 63. Top rod; 7. Telescopic hydraulic cylinder; 71. Pressure plate; 8. Second positioning seat; 81. Auxiliary positioning block; 10. Exhaust pipe bracket; 101. Crossbeam; 102. Connecting seat. Detailed Implementation

[0045] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0047] Furthermore, in the description of this invention, it should be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," "specific example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] In the traditional exhaust pipe bracket support and positioning process, due to processing errors, welding deformation, or local height deviations caused by material stress release, the fixed support points cannot be adaptively adjusted. This can easily lead to some support points being suspended or excessively compressed, resulting in uneven force distribution on the exhaust pipe bracket and difficulty in maintaining a flat positioning reference surface. Consequently, it affects the positional accuracy of the connecting seat and the assembly quality. In particular, the support system lacks structural stability design. The two ends of the rectangular frame exhaust pipe bracket are the main stress areas, and the evenly distributed multi-point support cannot form a stable positioning reference. During assembly operations, external force interference can easily cause slight displacement. At the same time, the coordination between the clamping mechanism and the support structure is insufficient, and improper clamping force control can easily lead to local deformation of the frame or fixation failure, ultimately resulting in decreased positioning accuracy and reduced assembly reliability.

[0051] For example, on the assembly line of the exhaust system of construction machinery, when positioning the exhaust pipe frame of a certain model of loader, the exhaust pipe frame has a local height difference of about 0.5 mm due to welding heat deformation. The support point height of the traditional fixed support device is not adjustable, which causes the support point at one end of the exhaust pipe frame to be completely suspended while the other end is over-compressed. The exhaust pipe frame tilts above the platform, and the installation reference surface of the connecting seat becomes uneven. Furthermore, during the assembly of exhaust pipe components, misalignment occurs when the connecting seat is mated, and the sealing ring is not compressed evenly, which causes exhaust leakage and abnormal vibration noise. At the same time, the operator has to repeatedly adjust the position of the exhaust pipe frame to calibrate the alignment, and the assembly process is forced to be interrupted, significantly reducing the assembly efficiency.

[0052] If the above problems are not solved, the positioning accuracy of the exhaust pipe bracket will continue to be difficult to guarantee, the stability of assembly quality will be seriously affected, the risk of exhaust pipe component sealing failure will increase, abnormal vibration will occur frequently during system operation, and thus affect the overall equipment's operational reliability and service life. At the same time, frequent production changeover operations will increase operational complexity and make it difficult to meet the process requirements of high-precision assembly.

[0053] In this regard, refer to Figures 1-8 This application proposes a support and positioning device for an exhaust pipe frame 10, which is used to support and position the exhaust pipe frame 10. The exhaust pipe frame 10 is a rectangular frame structure, with several connecting seats 102 for installing exhaust pipe components symmetrically arranged on both sides of its length direction. A crossbeam 101 is provided between two corresponding connecting seats 102 in the lateral direction. The positioning device includes a platform 1. Two sets of first support fixing units are symmetrically arranged on one side of the platform 1, and a set of second support fixing units is arranged on the other side. The two sets of first support fixing units and the set of second support fixing units are triangularly distributed and respectively support the two ends of the exhaust pipe frame 10.

[0054] It also includes several floating support units, which are arranged at intervals on the platform 1 and located directly below the main structure of the exhaust pipe frame 10 or the crossbeam 101. Each floating support unit has a floating support part and a floating clamping part that cooperates with the floating support part to form a locking mechanism.

[0055] This embodiment relates to a support and positioning device for an exhaust pipe frame 10. Platform 1 serves as the basic installation carrier, supporting the entire positioning device. It can be implemented using rigid metal plates or welded frame structures, such as steel plate platforms or profiled steel platforms, primarily to provide a stable installation foundation. In practical applications, the first and second support fixing units are triangularly distributed, meaning three support points are set on platform 1 to form a triangular layout, providing a stable support benchmark. This can be achieved using fixed support seats or adjustable support mechanisms, such as rigid support blocks or threaded adjustment tables, primarily to provide effective support at both ends of the exhaust pipe frame 10, avoiding displacement problems caused by assembly operations or external force interference. Furthermore, floating support units are spaced apart on platform 1, located directly below the main structure of the exhaust pipe frame 10 or the crossbeam 101. This refers to setting multiple adaptive support points according to the structural layout of the exhaust pipe frame 10. This can be implemented using pneumatic or hydraulic support devices, primarily to automatically adapt the contact height when the exhaust pipe frame 10 is placed, eliminating local dimensional deviations caused by processing errors or welding deformation. The floating support unit refers to a support component that can adjust its height according to changes in external pressure. It can be implemented using a pneumatic telescopic cylinder or a hydraulic telescopic cylinder, primarily to achieve adaptive adjustment of the support height and ensure a tight fit between each support point and the exhaust pipe bracket 10. Furthermore, the floating clamping unit cooperates with the floating support unit to form a locking mechanism, which achieves locking through the coordinated work of the clamping and support components. This can be implemented using a mechanical lever system or a hydraulic drive device, primarily to apply a controllable clamping force after the support height is adapted, preventing the exhaust pipe bracket 10 from loosening during positioning. Therefore, this application establishes a stable support benchmark through triangularly distributed support fixing units, combined with the adaptive adjustment capability of the floating support unit, effectively solving the problem of uneven force distribution on the exhaust pipe bracket 10 caused by local dimensional deviations. It also avoids the defects of insufficient support stability and lack of adaptive adjustment mechanism, ensuring that the exhaust pipe bracket 10 maintains positional accuracy and structural integrity during assembly. Specifically, this design establishes a coordinated mechanism between the supporting and clamping actions, locking the system after the support height is properly matched. This prevents the suspension or excessive compression issues common in traditional fixed supports, thus improving positioning reliability. As a preferred embodiment, the arrangement of the floating support units can be adjusted according to the specific structural parameters of the exhaust pipe bracket 10 to accommodate different specifications of the exhaust pipe bracket 10, enhancing the versatility of the device.

[0056] The working principle of the exhaust pipe bracket 10 support and positioning device is based on platform 1 as the basic carrier, providing a stable installation foundation for the entire system and ensuring the coordinated operation of all components. Two sets of first support fixing units symmetrically arranged on one side of platform 1 and one set of second support fixing units arranged on the other side are triangularly distributed, providing support for both ends of the exhaust pipe bracket 10. This establishes a stable support benchmark with three points defining the plane, effectively preventing the exhaust pipe bracket 10 from shifting due to external interference or operational vibration during assembly. Furthermore, several floating support units are spaced apart on platform 1, and are located directly below the main structure of exhaust pipe frame 10 or crossbeam 101. When the exhaust pipe frame 10 is placed, the floating support parts automatically adapt to the height differences of the contact area, and rise and fall under the gravity of the exhaust pipe frame 10. After ensuring that each support point is tightly fitted with the exhaust pipe frame 10, the floating support parts switch to a locked state, providing stable support to the bottom of the exhaust pipe frame 10. Then, the floating clamping part cooperates with the floating support parts to form a locking mechanism, applying clamping force after the support height is adapted, ensuring the coordination of the support and clamping actions, and avoiding excessive clamping force causing frame deformation or insufficient clamping force causing fixation failure. In a preferred embodiment, the floating support part can be specifically implemented as a hydraulic lifting mechanism, whose height adjustment is completed through hydraulic oil circuit control. This allows it to adaptively adapt to local dimensional deviations when the exhaust pipe frame 10 is pressed down, ensuring that each support point is tightly fitted with the exhaust pipe frame 10, and then fixing the support height of each floating support part by closing the hydraulic oil circuit.

[0057] Therefore, this technical solution effectively solves the problem of uneven force distribution caused by local dimensional deviations in the support and positioning of the exhaust pipe frame 10, avoiding the phenomenon of some support points being suspended or excessively compressed in traditional fixed support structures, and fundamentally eliminating the risk of secondary deformation caused by uneven force distribution. Simultaneously, the triangularly distributed support units provide reliable support stability, ensuring that the stress areas at both ends of the exhaust pipe frame 10 form a stable positioning benchmark, preventing slight displacement during assembly. The adaptive adjustment mechanism of the floating support unit achieves precise fitting of the main structure of the exhaust pipe frame 10 and the crossbeam 101, completing height adaptation without manual calibration, significantly improving the accuracy and operational efficiency of the positioning process. Finally, through the locking cooperation between the floating support part and the floating clamping part, the device achieves reliable all-dimensional positioning of the exhaust pipe frame 10, meeting the requirements of high-precision assembly.

[0058] In some of the embodiments described above in this application, a floating support is proposed to achieve adaptive support for the exhaust pipe bracket 10. However, in its implementation, there is a lack of a specific lifting and adjustment mechanism, which cannot ensure that each support point can independently adapt to local height changes, resulting in uneven support or inability to effectively lock the height, which in turn causes uneven force on the exhaust pipe bracket 10, secondary deformation, or inaccurate positioning reference.

[0059] In this regard, refer to Figures 1-5 as well as Figure 8 This application further proposes that the floating support includes a support cylinder 5, and the output end of the support cylinder 5 is provided with a floating support 51. The floating support 51 is driven by the hydraulic oil circuit in the support cylinder 5 to achieve lifting and lowering adjustment.

[0060] In practical applications, the support cylinder 5 refers to a hydraulically driven linear actuator, which can be implemented using a single-acting piston cylinder or a double-acting piston cylinder. Its purpose is to provide controllable fluid power to achieve precise height adjustment. The floating support 51 can be understood as the support interface that directly contacts the exhaust pipe bracket 10. It can be implemented using a flat plate structure made of metal or an arc-shaped contact surface with a buffer layer. Its purpose is to disperse contact pressure and adapt to support surfaces of different shapes, avoiding local stress concentration.

[0061] Specifically, the solution of this application drives the floating support 51 to rise and fall through the hydraulic circuit in the support cylinder 5. When the exhaust pipe frame 10 is pressed down, the hydraulic oil flows automatically according to the load distribution, causing the floating support 51 to move down until all contact points are evenly stressed. Then, the hydraulic circuit of the support cylinder 5 is closed to lock the height, ensuring support stability and positioning accuracy. This process, together with the first support fixing unit, the second support fixing unit and the floating clamping part on the platform 1, forms a complete support system, effectively solving the problem of uneven support caused by local dimensional deviations.

[0062] As a preferred embodiment, the solution of this application is specifically implemented as follows: the support cylinder 5 can be a double-acting piston hydraulic cylinder, and its internal hydraulic oil circuit is equipped with a check valve and a shut-off valve; the floating support 51 can be specifically designed as an arc-shaped contact surface structure made of cast iron, and the surface is covered with an elastic buffer layer to better fit the main structure of the exhaust pipe frame 10 or the curved contour of the crossbeam 101, so as to achieve a tight fit during the lifting and adjustment process.

[0063] Through the above scheme, this application can ensure that each support point independently adapts to local height changes, avoid the problems of uneven support and inability to lock the height, effectively prevent uneven force on the exhaust pipe bracket 10, secondary deformation and inaccurate positioning reference, thereby improving the stability and accuracy of the support positioning of the exhaust pipe bracket 10.

[0064] Specifically, in some of the embodiments described above in this application, a floating clamping part is proposed to cooperate with the floating support part to form a locking mechanism. However, in the process of its implementation, since the specific structure of the floating clamping part is not clear, the clamping force cannot be accurately controlled according to the structural strength of the exhaust pipe frame 10. It is easy to cause frame deformation due to local stress concentration, and it is difficult to achieve uniform distribution and adaptive adjustment of the clamping force.

[0065] In this regard, refer to Figure 8This application further proposes that a floating clamping part is disposed on the side of the floating support part for applying a downward clamping force to the main structure of the exhaust pipe frame 10 or the crossbeam 101.

[0066] The floating clamping part includes a clamping cylinder 52. The output end of the clamping cylinder 52 is provided with a telescopic rod 521. The telescopic rod 521 is raised and lowered through the hydraulic oil circuit in the clamping cylinder 52. A second connecting rod 54 is hinged on the clamping cylinder 52. The end of the second connecting rod 54 away from the clamping cylinder 52 is hinged to the middle of the second swing arm 53. The outer end of the telescopic rod 521 is hinged to one end of the second swing arm 53. The other end of the second swing arm 53 is provided with a clamping support 531 that is directly opposite to the floating support 51.

[0067] Alternatively, a clamping seat can be directly fixed to the outer end of the telescopic rod 521. The clamping seat is used to clamp the main structure of the exhaust pipe frame 10 or the crossbeam 101.

[0068] The floating clamping part refers to an independently adjustable clamping mechanism, which can be implemented using hydraulic drive or a mechanical lever structure, and its purpose is to provide a controllable downward clamping force to the exhaust pipe bracket 10; the clamping cylinder 52 can be understood as a hydraulic actuator, which can be implemented using a single-acting or double-acting hydraulic cylinder, and its purpose is to precisely control the movement of the telescopic rod 521 through the hydraulic oil circuit; the telescopic rod 521 refers to a rod-shaped component that transmits power, which can be implemented using a rigid metal rod or a composite material rod, and its purpose is to convert the output force of the hydraulic cylinder into linear displacement; the second connecting rod 54 is specifically a component of the connecting rod mechanism. The first part, for example, can be a hinged linkage, the purpose of which is to convert linear motion into swing motion; the second swing arm 53 can be understood as a swing lever, which can be implemented using a metal swing arm or an engineering plastic swing arm, the purpose of which is to amplify the adjustment accuracy and evenly distribute the pressure; the clamping support 531 refers to the clamping end that contacts the exhaust pipe bracket 10, which can be implemented using a soft elastic material or a hard metal block, the purpose of which is to disperse local stress and avoid frame deformation; or, the clamping seat can be understood as a simplified clamping structure, which can be implemented using a fixed pressure block, the purpose of which is to reduce energy transfer loss and improve response speed.

[0069] Specifically, the solution in this application uses a hydraulic circuit within the clamping cylinder 52 to drive the telescopic rod 521 for lifting and lowering adjustment. The linear motion of the telescopic rod 521 is converted into the swinging motion of the clamping support 531 via the hinged relationship between the second connecting rod 54 and the second swing arm 53, causing the clamping support 531 and the floating support 51 to form a direct clamping force, thereby applying a downward clamping force. When a direct connection to the clamping seat is used, the hydraulic thrust is directly transmitted to the clamping seat through the telescopic rod 521, achieving immediate application of the clamping force. This design, through the lever principle of the linkage mechanism or the direct clamping path, allows the clamping force to be dynamically adjusted according to the actual structural strength of the exhaust pipe frame 10, avoiding local high-pressure point concentration caused by improper force values, while ensuring that the clamping force is evenly distributed in the contact area.

[0070] As a preferred embodiment, the solution of this application is specifically implemented as follows: the clamping cylinder 52 is specifically a double-acting hydraulic cylinder, the second swing arm 53 is specifically a steel swing arm, and the clamping support 531 is specifically a metal block with a rubber buffer layer. During operation, the hydraulic system drives the telescopic rod 521 to extend, pushing the second swing arm 53 to swing around the central hinge point, so that the clamping support 531 clamps the crossbeam 101 of the exhaust pipe frame 10, forming a stable locking mechanism with the floating support 51; or, when a simplified solution is adopted, a flat pressure block is directly fixedly connected to the outer end of the telescopic rod 521 as a clamping seat to directly clamp the main structure of the exhaust pipe frame 10.

[0071] Through the above scheme, this application achieves precise control and uniform distribution of clamping force, effectively avoids deformation of the exhaust pipe frame 10 due to local stress concentration, and ensures the stability and reliability of the overall structure during the support and positioning process.

[0072] Specifically, in some embodiments of this application, a floating support unit is proposed to achieve adaptive support positioning of the exhaust pipe bracket 10. However, the lack of an automatic control system in this process leads to the reliance on manual operation for adaptive adjustment, resulting in low efficiency. Furthermore, the support height locking and clamping actions cannot be precisely coordinated, which can easily amplify positioning errors.

[0073] In this regard, this application further proposes a hydraulic control system, which controls the hydraulic circuits within the support cylinder 5 and the clamping cylinder 52. Initially, each floating support 51 is in the extended position. As the two ends of the exhaust pipe frame 10 are gradually placed on the first and second support fixing units, the main structure of the exhaust pipe frame 10 and the crossbeam 101 press down on the floating supports 51 below, causing each floating support 51 to adaptively match the support height of its corresponding contact area. After adaptation, the hydraulic control system closes the hydraulic circuits within each support cylinder 5, locking the support height of each floating support 51. Subsequently, the hydraulic control system drives the hydraulic circuits within the clamping cylinder 52 to open, driving the telescopic rod 521 to extend and push the clamping support 531 of the second swing arm 53 to clamp the main structure or crossbeam 101 of the exhaust pipe frame 10.

[0074] In practical applications, a hydraulic control system refers to an integrated control mechanism used to regulate the flow path and pressure of hydraulic oil. It can be implemented using a centralized hydraulic station with electromagnetic directional valves or proportional speed control valves, or using a distributed hydraulic unit with logic control valve groups. Its purpose is to precisely control the timing and pressure parameters of the support cylinder 5 and the clamping cylinder 52. The extension position can be understood as the highest position of the floating support 51 when the support cylinder 5 is fully extended. It can be set slightly higher than the theoretical installation height of the main structure of the exhaust pipe frame 10. Its purpose is to provide sufficient adjustment space for the downward pressing process of the exhaust pipe frame 10, ensuring that adaptive adjustment can fully respond to local height deviations. Specifically, adaptive adaptation refers to the process by which the floating support 51 automatically adjusts its support height according to the real-time force conditions of the local contact area of ​​the exhaust pipe frame 10. This can be achieved based on the throttling control of the hydraulic circuit or the accumulator compensation mechanism. Its purpose is to ensure that each... The support point can independently respond to local deformation, avoiding stress concentration caused by rigid support. In practical applications, closing the hydraulic circuit means cutting off the flow channel of the oil inside the support cylinder 5 by controlling the valve. This can be achieved by using a solenoid ball valve or a hydraulic check valve. The purpose is to lock the floating support 51 at the precise height position after the adaptation is completed, preventing changes in height during subsequent operations. Locking and fixing can be understood as keeping the floating support 51 at its current support height unchanged through a hydraulic locking mechanism. This can be achieved by using a mechanical locking mechanism in combination with hydraulic locking or a pure hydraulic locking method. The purpose is to maintain the stability of the support reference and provide a reliable foundation for subsequent clamping operations. Specifically, driving the clamping cylinder 52 means activating the working oil circuit of the clamping cylinder 52. This can be achieved by switching the oil circuit direction through a solenoid directional valve. The purpose is to generate a downward clamping force on the clamping support 531, which, together with the floating support 51, forms a stable locking mechanism.

[0075] Specifically, the solution of this application uses a hydraulic control system to precisely control the hydraulic circuits of the support cylinder 5 and the clamping cylinder 52. First, in the initial state, each floating support 51 is placed in the extension position to provide a high-level preparatory position for the placement of the exhaust pipe frame 10. After the two ends of the exhaust pipe frame 10 are initially positioned by the first support fixing unit and the second support fixing unit, the weight of its main structure and the crossbeam 101 presses down on each floating support 51. The hydraulic control system uses the adaptive adjustment characteristics of the oil circuit to make each floating support 51 automatically adjust its height according to the local contact pressure, achieving self-adaptive fit without intervention. After each floating support 51 is in close contact with the contact area, the hydraulic control system immediately closes the hydraulic circuit of the support cylinder 5 to precisely lock the support height of each floating support 51. Subsequently, the hydraulic control system drives the hydraulic circuit of the clamping cylinder 52, causing the telescopic rod 521 to extend and push the second swing arm 53 to drive the clamping support 531 to press down, forming a stable locking mechanism with the locked floating support 51. This workflow ensures that the support height is completely stable before applying the clamping force through strict timing control, effectively avoiding frame deformation or amplified positioning errors caused by clamping before the support is stable, and achieving precise coordination between the support and clamping actions.

[0076] As a specific implementation method, the solution of this application is implemented as follows: The hydraulic control system is implemented by an integrated hydraulic station in conjunction with a PLC controller. The hydraulic circuit of the supporting cylinder 5 is equipped with a hydraulically controlled check valve as a closing mechanism, and the hydraulic circuit of the clamping cylinder 52 is equipped with an electromagnetic directional valve as a driving mechanism. The upper surface of the floating support 51 is designed as a spherical contact surface to accommodate the small angular deviation of the main structure of the exhaust pipe frame 10. When the exhaust pipe frame 10 is placed on the support fixing unit, its own weight causes the floating support 51 to press down, and the hydraulic oil slowly flows back through the throttle valve to achieve height adaptive adjustment. When all floating supports 51 reach the contact state, the PLC controller receives the pressure sensor signal and immediately triggers the hydraulically controlled check valve to close, locking the support height. Subsequently, the PLC controller starts the electromagnetic directional valve, allowing the pressure oil to enter the rodless chamber of the clamping cylinder 52, pushing the telescopic rod 521 to extend. Through the lever action of the second swing arm 53, the clamping support 531 generates a downward clamping force, completing the locking and fixing of the exhaust pipe frame 10.

[0077] Through the above-mentioned solution, this application realizes the automated control of the support and positioning process of the exhaust pipe bracket 10, effectively solving the problem of reliance on manual operation for adaptive adjustment and significantly improving the operation efficiency. At the same time, by precisely controlling the timing relationship between the support height locking and the clamping action, it ensures that the clamping force is applied only after the support is completely stable, avoiding local deformation of the exhaust pipe bracket 10 or displacement of the positioning reference caused by premature clamping, greatly improving the positioning accuracy and reliability, and providing a stable and reliable positioning basis for the high-precision assembly of subsequent exhaust pipe components.

[0078] In some of the embodiments described above in this application, a floating clamping part is proposed to apply vertical clamping force to the main structure of the exhaust pipe frame 10 or the crossbeam 101. However, in the process of its implementation, the clamping force cannot be precisely controlled according to the structural strength of the exhaust pipe frame 10. Operators can only rely on the stroke control of the hydraulic oil circuit or experience judgment, which can easily lead to local stress concentration causing frame deformation or insufficient clamping force causing insecure fixation, affecting positioning accuracy and assembly reliability.

[0079] In this regard, this application further proposes a control unit, which includes a command output terminal and a pressure detection system. The command output terminal is used to preset the target output pressure of each clamping support 531 and to regulate the actual output pressure of the clamping support 531 through the hydraulic control system. The pressure detection system is used to detect the actual output pressure of each clamping support 531 in real time.

[0080] In practical applications, the command output terminal refers to the input device used to set the target output pressure. It can be implemented using an industrial touch screen interface or a physical button operation panel. Its purpose is to enable operators to pre-set an appropriate clamping force threshold based on the specific structural characteristics of the exhaust pipe frame 10, avoiding pressure deviations caused by fixed strokes or subjective experience. The pressure detection system can be understood as a sensing module that monitors the clamping force in real time. It can be implemented using a strain gauge pressure sensor in conjunction with a signal conditioning circuit. Its purpose is to provide continuous pressure feedback data, ensure the controllability and stability of the clamping process, and promptly identify abnormal pressure distributions.

[0081] Specifically, the solution of this application presets the target output pressure through the command output terminal. The hydraulic control system dynamically adjusts the action parameters of the clamping cylinder 52 according to the preset value. At the same time, the pressure detection system collects the actual output pressure of the clamping support 531 in real time and feeds it back to the control system, forming a closed-loop control mechanism. This makes the actual output pressure accurately converge to the target value, thereby eliminating the force drift caused by hydraulic fluctuations or external interference and preventing local overpressure deformation or underpressure loosening.

[0082] As a specific implementation, the control unit of this application can be specifically configured as follows: the command output terminal adopts an industrial-grade human-machine interface, through which the operator inputs the target pressure value of each clamping support 531; the pressure detection system adopts a distributed pressure sensor network, with a strain gauge pressure sensor integrated under each clamping support 531, which transmits the pressure signal to the central processing unit in real time; the hydraulic control system automatically adjusts the oil supply of the clamping cylinder 52 based on the feedback signal to ensure that the actual output pressure of the clamping support 531 is stable within the preset range, thereby achieving precise adaptation of the clamping force.

[0083] Through the above technical solution, this application achieves precise setting and dynamic monitoring of the clamping force, effectively avoids deformation of the exhaust pipe bracket 10 caused by local stress concentration, and ensures the uniformity and reliability of the clamping force, significantly improving the accuracy of the support and positioning of the exhaust pipe bracket 10 and the assembly quality.

[0084] Specifically, in some of the embodiments described above in this application, an auxiliary positioning mechanism is proposed to lock and fix the exhaust pipe bracket 10 in the horizontal direction. However, in its implementation, since the basic scheme only focuses on vertical support and clamping and lacks a horizontal limiting mechanism, the exhaust pipe bracket 10 is prone to lateral displacement during assembly operations, resulting in decreased positioning accuracy and unstable assembly quality.

[0085] In this regard, refer to Figures 1-5 as well as Figure 7 This application further proposes that it also includes several auxiliary positioning mechanisms. The auxiliary positioning mechanisms are arranged at intervals on the platform 1 along the length direction of the exhaust pipe frame 10. The auxiliary positioning mechanism includes a first positioning seat 61 and a limiting seat 6 fixedly connected to the platform 1. The first positioning seat 61 and the limiting seat 6 are arranged in parallel. The limiting seat 6 is provided with a limiting cylinder 62. The output end of the limiting cylinder 62 is provided with a push rod 63. The push rod 63 is arranged opposite to the first positioning seat 61 to lock and fix the main structure of the exhaust pipe frame 10 from the horizontal direction.

[0086] The first positioning seat 61 can be understood as a rigid reference component, specifically a fixed bracket or an embedded groove structure, the purpose of which is to provide a stable reaction support point; the limiting seat 6 refers to the mounting carrier of the movable component, specifically a sliding guide rail seat or a rotating base, the purpose of which is to ensure that the movement trajectory of the limiting cylinder 62 is consistent with the horizontal positioning direction; the limiting cylinder 62 refers to the hydraulic drive execution unit, specifically a single-acting or double-acting cylinder, the purpose of which is to provide controllable and adjustable thrust output; the push rod 63 refers to the direct contact action component, specifically a cylindrical rod or a contour-matching pressure head, the purpose of which is to form an effective contact surface with the main structure of the exhaust pipe bracket 10.

[0087] Specifically, the solution of this application arranges auxiliary positioning mechanisms at intervals along the length of the exhaust pipe frame 10, with the first positioning seat 61 serving as a fixed reference point. The limiting cylinder 62 on the limiting seat 6 drives the push rod 63 to move horizontally towards the first positioning seat 61. When the push rod 63 and the first positioning seat 61 are directly opposite each other, they form a bidirectional opposing clamping force field. This geometric layout ensures that the limiting force is uniformly transmitted along the horizontal axis, avoiding stress concentration caused by angular deviation. At the same time, the interval arrangement allows each auxiliary positioning mechanism to act independently on different sections of the frame. When the exhaust pipe frame 10 has a tendency to lateral displacement during assembly, the nearest auxiliary positioning mechanism immediately implements constraint through the synergistic action of the push rod 63 and the first positioning seat 61, thereby eliminating the horizontal degree of freedom and suppressing overall displacement.

[0088] In one specific implementation, the first positioning seat 61 is a T-shaped steel bracket, which is fixed to the platform 1 by high-strength bolts; the limiting seat 6 is a slider structure with a linear guide rail, and the limiting cylinder 62 is a double-acting hydraulic cylinder. The end of the push rod 63 connected to its output end is machined into an arc surface that matches the outer contour of the main structure of the exhaust pipe frame 10. When the limiting cylinder 62 is activated, the push rod 63 moves along the guide rail and forms a clamp with the first positioning seat 61, thereby achieving flexible locking of the side wall of the exhaust pipe frame 10.

[0089] The above technical solution effectively solves the problem of lateral offset caused by the lack of horizontal positioning during the assembly of exhaust pipe bracket 10, significantly improves the stability of positioning reference, ensures the spatial position accuracy of the mounting surface of connector 102, and avoids the risk of misalignment and sealing failure during subsequent exhaust pipe assembly.

[0090] Specifically, in some embodiments of this application, a first support fixing unit is proposed to support one end of the exhaust pipe bracket 10. However, in this process, due to the lack of an effective dynamic clamping mechanism, the fixed support seat alone cannot cope with the slight displacement of the exhaust pipe bracket 10 caused by processing errors or external force interference, resulting in insufficient support stability. At the same time, the traditional rigid clamping method is prone to causing local stress concentration, which may cause the exhaust pipe bracket 10 frame to deform or the connecting seat 102 to shift, affecting the consistency of the assembly reference.

[0091] In this regard, refer to Figures 1-6This application further proposes that the first support fixing unit includes a fixed support base 2, a fixed oil cylinder 41 is provided on the side of the fixed support base 2, a drive rod 42 is provided at the output end of the fixed oil cylinder 41, the drive rod 42 is adjusted for lifting and lowering through the hydraulic oil circuit in the fixed oil cylinder 41, a first connecting rod 44 is hinged on the fixed oil cylinder 41, a first swing arm 43 is hinged at the end of the first connecting rod 44 away from the fixed oil cylinder 41, and the first connecting rod 44 is hinged to the middle of the first swing arm 43, the outer end of the drive rod 42 is hinged to one end of the first swing arm 43, and a pressure block is provided at the other end of the first swing arm 43, the pressure block is arranged opposite to the fixed support base 2.

[0092] Among them, the fixed support base 2 refers to a rigid structure used to provide basic support, which can be implemented using a fixed base of cast iron or steel structure, with the purpose of providing a stable initial support reference for the exhaust pipe bracket 10; the fixed cylinder 41 can be understood as a hydraulic actuator that provides controllable driving force, which can be implemented using a double-acting hydraulic cylinder or a proportional control hydraulic cylinder, with the purpose of precisely adjusting the output force and displacement through the hydraulic oil circuit; the drive rod 42 is specifically a linear motion component that transmits driving force, for example, it can be a piston rod structure with a guide sleeve, with the purpose of stably transmitting the output force of the fixed cylinder to the swing arm mechanism; the... The connecting rod 44 refers to the transmission component that connects the fixed oil cylinder 41 and the first swing arm 43. It can be a connecting rod structure made of high-strength alloy steel, and its purpose is to convert the linear motion of the drive rod 42 into the rotational motion of the swing arm. The first swing arm 43 can be understood as a swinging component that realizes the clamping action. It can be an L-shaped or Z-shaped swing arm, and its purpose is to convert the driving force into the clamping force on the exhaust pipe bracket 10 through the lever principle. The pressure block is specifically the clamping component that contacts the exhaust pipe bracket 10. For example, it can be a metal block with anti-slip texture on the surface, and its purpose is to distribute the clamping force evenly and avoid local stress concentration.

[0093] Specifically, the solution of this application uses a fixed hydraulic cylinder 41 to drive a drive rod 42 for lifting and lowering adjustment. The outer end of the drive rod 42 is hinged to one end of the first swing arm 43, causing the first swing arm 43 to swing around its fulcrum. At the same time, the fixed hydraulic cylinder 41 is hinged to the middle of the first swing arm 43 through a first connecting rod 44, forming a stable four-bar linkage mechanism, so that the swing trajectory of the first swing arm 43 matches the contour of the exhaust pipe frame 10. When the first swing arm 43 swings, the pressure block at its other end moves toward the fixed support 2, forming a vertical clamping of the exhaust pipe frame 10 with the fixed support 2. Through precise control of the hydraulic circuit, the clamping force can be dynamically adjusted according to the actual contact state of the exhaust pipe frame 10, avoiding frame deformation caused by rigid clamping.

[0094] In one specific implementation, the fixed cylinder 41 can be a standard double-acting hydraulic cylinder, and the drive rod 42 is a piston rod structure with a linear bearing; the first swing arm 43 is designed as an L-shaped structure, and its swing fulcrum is located on the side bracket of the fixed support 2; the pressure block is a metal block with anti-slip texture on the surface, forming a symmetrical clamping structure with the support surface of the fixed support 2; when the exhaust pipe bracket 10 is placed in place, the fixed cylinder 41 slowly extends, and pushes the first swing arm 43 to swing through the drive rod 42, so that the pressure block gently presses against the exhaust pipe bracket 10 until the preset pressure value is reached.

[0095] The above technical solution effectively solves the problem of insufficient support stability and realizes adaptive clamping of both sides of one end of the exhaust pipe bracket 10; the clamping force can be dynamically adjusted according to the actual state of the exhaust pipe bracket 10, avoiding frame deformation caused by local stress concentration; at the same time, the symmetrical clamping structure formed by the pressure block and the fixed support seat 2 ensures the reliability of vertical clamping, provides a solid triangular support benchmark for the overall positioning system, and significantly improves the positioning accuracy and assembly quality of the exhaust pipe bracket 10.

[0096] Specifically, in some of the embodiments described above in this application, a second support fixing unit is proposed to form a triangular distribution support reference. However, in its implementation, the second support fixing unit lacks an active clamping mechanism and a precise clamping structure, and relies only on passive support points. This makes it easy for the exhaust pipe bracket 10 to shift or fail under external force interference during assembly operations, and it is impossible to achieve stable and reliable vertical locking, thereby affecting the overall positioning accuracy and assembly quality.

[0097] In this regard, refer to Figures 1-5 This application further proposes a second support fixing unit including a support positioning block 21. The two fixed support seats 2 and the support positioning block 21 are arranged in a triangle. A telescopic hydraulic cylinder 7 is provided on the side of the support positioning block 21. A pressure plate 71 is fixedly connected to the output end of the telescopic hydraulic cylinder 7. The pressure plate 71 is directly opposite to the support positioning block 21, forming a vertical clamping structure for the exhaust pipe frame 10.

[0098] Among them, the support positioning block 21 is a rigid component used to provide a reference support surface. It can be made of cast iron or steel to ensure the flatness and rigidity of the support surface. Its purpose is to provide a stable initial positioning reference for the exhaust pipe bracket 10 and avoid support suspension due to local deformation. The triangular distribution of the two fixed support seats 2 and the support positioning block 21 means that the support points are arranged to form a triangular geometric structure. It can be implemented using an equilateral or non-equilateral triangular layout. Its purpose is to use the stability of the triangle to prevent the exhaust pipe bracket 10 from shifting in the length or rotation direction, thereby enhancing the reliability of the overall support reference. The telescopic hydraulic cylinder 7 is an actuator that realizes telescopic movement through hydraulic drive. It can be implemented using a single-acting or double-acting hydraulic cylinder. Its purpose is to... The purpose is to provide continuously adjustable clamping force, so that the clamping process can be adaptively adjusted according to the actual structural strength of the exhaust pipe frame 10, avoiding excessive clamping force causing frame dent or insufficient clamping force causing clamping failure; the pressure plate 71 is a clamping component fixedly connected to the output end of the telescopic hydraulic cylinder 7, which can be implemented using a flat plate or arc-shaped plate structure, the purpose of which is to ensure the directness and stability of power transmission, reduce force loss caused by mechanical clearance, and make the clamping action accurately respond to hydraulic control; the pressure plate 71 and the support positioning block 21 are arranged opposite each other to form a clamping space, which can be implemented using parallel or symmetrical arrangement, the purpose of which is to form a vertical clamping structure for the exhaust pipe frame 10, and to firmly lock the exhaust pipe frame 10 through bidirectional force, effectively suppressing vibration or external force interference.

[0099] Specifically, the solution of this application provides a flat contact surface by using the support positioning block 21 as a reference support point to ensure the initial positioning accuracy of the exhaust pipe rack 10 when it is placed; the two fixed support seats 2 and the support positioning block 21 are triangularly distributed to form a geometrically stable support system, which uses the inherent anti-deformation characteristics of triangles to prevent the exhaust pipe rack 10 from shifting; the telescopic hydraulic cylinder 7 set on the side of the support positioning block 21 pushes the pressure plate 71 to move towards the support positioning block 21 through hydraulic drive, and cooperates with the support positioning block 21 to form a vertical clamping structure, locking the exhaust pipe rack 10 in the middle position; the clamping structure achieves active locking through bidirectional force, effectively suppressing vibration or external force interference during the assembly process, and ensuring the continuous stability and positioning consistency of the triangular distribution support system in dynamic operation.

[0100] As a specific implementation, the support positioning block 21 can be a cast iron block with a finely ground surface to provide a highly flat support surface; the telescopic hydraulic cylinder 7 can be a double-acting hydraulic cylinder, the output end of which is fixedly connected to a rectangular pressure plate 71 by bolts; during installation, the end of the exhaust pipe bracket 10 is placed on the support positioning block 21, and the telescopic hydraulic cylinder 7 drives the pressure plate 71 to press down, together with the support positioning block 21, to clamp the end of the exhaust pipe bracket 10 to achieve a stable lock.

[0101] Through the above solution, this application realizes the active locking function of the end support point of the exhaust pipe frame 10, effectively preventing the exhaust pipe frame 10 from shifting or failing due to external force interference during assembly operations, significantly improving the stability and positioning accuracy of the triangular distribution support system, and ensuring the reliable fixation of the exhaust pipe frame 10 during the assembly process.

[0102] Specifically, during the installation and positioning of the exhaust pipe bracket 10, the lack of an effective guidance and end positioning mechanism leads to the reliance on manual calibration when placing the exhaust pipe bracket 10, which easily results in positioning deviations and affects assembly efficiency and accuracy.

[0103] In this regard, refer to Figures 1-5 This application further proposes that it also includes a guide part 3 and a positioning part. The guide part 3 is arranged along the length direction of the exhaust pipe frame 10 and fixed on the platform 1 for guiding and positioning during the installation of the exhaust pipe frame 10. The positioning part includes a second positioning seat 8, which is fixedly connected to one side edge of the platform 1. The second positioning seat 8 is provided with a positioning cylinder, and the output end of the positioning cylinder is provided with an auxiliary positioning block 81 for positioning the end of the exhaust pipe frame 10.

[0104] In practical applications, the guide part 3 refers to the guide structure arranged along the length of the exhaust pipe frame 10. It can be implemented using structures such as guide rails, protrusions, or grooves. Its purpose is to guide the exhaust pipe frame 10 to move smoothly along a preset path during installation, reducing lateral deviation. The second positioning seat 8 can be understood as a support base fixed to the edge of the platform. It can be implemented using a metal block or bracket structure. Its purpose is to provide a stable positioning reference point. Specifically, the positioning cylinder refers to a hydraulic drive device. It can be implemented using a single-acting or double-acting hydraulic cylinder. Its purpose is to provide controllable thrust to drive the positioning block to adjust its position. In practical applications, the auxiliary positioning block 81 is specifically a limiting component that contacts the end of the exhaust pipe frame 10. For example, it can be implemented using a rubber-coated metal block or a pure metal block. Its purpose is to apply physical limitation to the end of the exhaust pipe frame 10 to ensure accurate locking of the position.

[0105] Specifically, the arrangement direction of the guide part 3 is consistent with the length direction of the exhaust pipe bracket 10, so that the exhaust pipe bracket 10 can be naturally aligned during movement and avoid lateral displacement; the second positioning seat 8 is fixed to one side edge of the platform 1, so that the auxiliary positioning block 81 can accurately correspond to the end position of the exhaust pipe bracket 10; the positioning cylinder adjusts the extension amount of the auxiliary positioning block 81 by hydraulic drive to adapt to the end size or slight deformation of different specifications of exhaust pipe bracket 10, thereby achieving precise locking of the end position.

[0106] In one specific implementation, the guide part 3 is a stainless steel guide rail fixed on the platform 1; the second positioning seat 8 is a block structure made of cast iron; the positioning cylinder is a double-acting hydraulic cylinder; and the auxiliary positioning block 81 is a metal block with a rubber-coated surface to reduce damage to the exhaust pipe bracket 10.

[0107] The above technical solutions effectively reduce the need for manual calibration, avoid positioning deviations, and improve the installation accuracy and assembly efficiency of the exhaust pipe bracket 10.

[0108] In another embodiment, this application also discloses a method for supporting and positioning an exhaust pipe frame 10, applied to an exhaust pipe frame 10 support and positioning device, for supporting and positioning a rectangular frame exhaust pipe frame 10 equipped with a connecting seat 102 and a crossbeam 101, including the following steps:

[0109] The reference guide positioning moves the exhaust pipe bracket 10 along the guide part 3 on the platform 1 to the preset installation area. The positioning cylinder of the positioning part drives the auxiliary positioning block 81 to extend, limit the end of the exhaust pipe bracket 10, and lock its reference position in the length direction.

[0110] A triangular support reference is established. The corresponding transmission structure is driven by the fixed cylinders 41 of the two sets of first support fixing units, which drive the pressure block to press down and cooperate with the fixed support seat 2 to vertically clamp the two sides of one end of the exhaust pipe frame 10. At the same time, the telescopic hydraulic cylinder 7 of the second support fixing unit drives the pressure plate 71, which cooperates with the support positioning block 21 to vertically clamp the other end of the exhaust pipe frame 10, so that the two sets of first support fixing units and second support fixing units are triangularly distributed to form a stable support reference.

[0111] The floating support is adaptively adjusted. The main structure of the exhaust pipe frame 10 and the crossbeam 101 naturally press down on the floating support 51 at the corresponding position of the floating support part. The hydraulic oil circuit in the support cylinder 5 is adaptively adjusted so that each floating support 51 is in close contact with the contact area of ​​the exhaust pipe frame 10. After each floating support 51 is in place, the hydraulic control system closes the hydraulic oil circuit of each support cylinder 5 to lock the support height of each floating support 51.

[0112] The hydraulic control system drives the clamping cylinders 52 of each floating clamping part to drive the corresponding transmission structure through the telescopic rod 521, or directly drives the clamping seat / clamping support 531 to press down, and cooperates with the corresponding floating support 51 to form a clamping mechanism to vertically lock the main structure of the exhaust pipe frame 10 and the crossbeam 101.

[0113] Horizontal auxiliary positioning is achieved by activating the limit cylinders 62 of each auxiliary positioning mechanism to drive the push rod 63 to extend towards the first positioning seat 61, which cooperates with the first positioning seat 61 to clamp and limit the main structure of the exhaust pipe frame 10 from the horizontal direction, and finally completes the full-dimensional support and positioning of the exhaust pipe frame 10.

[0114] This application systematically solves the problems of insufficient positioning accuracy, easy frame deformation, and low operation efficiency in the support positioning of the exhaust pipe frame 10 by combining benchmark guidance positioning, triangular support benchmark establishment, floating support adaptive adjustment, clamping fixation, and horizontal auxiliary positioning mechanism in a step-by-step coordinated manner. These problems are caused by the inability of fixed support points to adapt to local dimensional deviations, unstable support benchmarks, and lack of coordination between clamping and support. Specifically, benchmark guidance positioning uses the physical guidance of the guide part 3 to achieve automatic alignment of the exhaust pipe frame 10, avoiding random errors from manual calibration; triangular support benchmark establishment forms spatially stable support through the triangular distribution layout of two sets of first and second support fixing units, effectively resisting external force interference; floating support adaptive adjustment is based on the hydraulic feedback mechanism triggered by the self-weight of the exhaust pipe frame 10, enabling the floating support 51 to automatically adapt to local height deviations and eliminate the risk of uneven force; clamping fixation applies controllable clamping force after the support height is locked, achieving dynamic coordination between support and clamping; horizontal auxiliary positioning provides lateral constraint through the cooperation of the limit cylinder 62 and the first positioning seat 61, making up for the lack of horizontal positioning in traditional devices. As a result, this solution achieves adaptive support, all-dimensional positioning, stable and reliable support and positioning effects with strong versatility, significantly improving the assembly quality and production efficiency of the exhaust pipe system.

[0115] For any parts not mentioned in this invention, existing technologies can be used or referenced.

[0116] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0117] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An exhaust pipe support and positioning device for supporting and positioning an exhaust pipe frame (10), wherein the exhaust pipe frame (10) is a rectangular frame structure, and a plurality of connecting seats (102) for installing exhaust pipe components are symmetrically arranged on both sides of its length direction, and a crossbeam (101) is provided between two horizontally corresponding connecting seats (102), characterized in that, The positioning device includes a platform (1), on which two sets of first support fixing units are symmetrically arranged on one side and a set of second support fixing units are arranged on the other side. The two sets of first support fixing units and the set of second support fixing units are arranged in a triangular distribution, respectively supporting the two ends of the exhaust pipe frame (10). It also includes several floating support units, which are spaced apart on the platform (1) and located directly below the main structure or crossbeam (101) of the exhaust pipe frame (10). Each floating support unit has a floating support part and a floating clamping part that cooperates with the floating support part to form a locking mechanism. The floating support includes a support cylinder (5), and the output end of the support cylinder (5) is provided with a floating support (51). The floating support (51) is driven by the hydraulic oil circuit in the support cylinder (5) to achieve lifting and lowering adjustment. It also includes a hydraulic control system, which is used to control the hydraulic circuits in the support cylinder (5) and the clamping cylinder (52). In the initial state, each floating support (51) is in the extended position. When the two ends of the exhaust pipe frame (10) are gradually placed on the first support fixing unit and the second support fixing unit, the main structure of the exhaust pipe frame (10) and the crossbeam (101) press down on the floating support (51) below, so that each floating support (51) adapts to the support height of the corresponding contact area. After the adaptation is completed, the hydraulic control system controls the closure of the hydraulic circuit in each support cylinder (5), so that the support height of each floating support (51) is locked and fixed. Then the hydraulic control system drives the hydraulic circuit in the clamping cylinder (52) to open, drives the telescopic rod (521) to extend and push the clamping support (531) of the second swing arm (53) to clamp the main structure or crossbeam (101) of the exhaust pipe frame (10).

2. An exhaust pipe hanger support positioning device as defined in claim 1 wherein, The floating clamping part is located on the side of the floating support part and is used to apply a downward clamping force to the main structure or crossbeam (101) of the exhaust pipe frame (10); The floating clamping part includes a clamping cylinder (52). The output end of the clamping cylinder (52) is provided with a telescopic rod (521). The telescopic rod (521) is adjusted by lifting and lowering through the hydraulic oil circuit in the clamping cylinder (52). A second connecting rod (54) is hinged on the clamping cylinder (52). The end of the second connecting rod (54) away from the clamping cylinder (52) is hinged to the middle of the second swing arm (53). The outer end of the telescopic rod (521) is hinged to one end of the second swing arm (53). The other end of the second swing arm (53) is provided with a clamping support (531) that is directly opposite to the floating support (51). Alternatively, a clamping seat can be directly fixed to the outer end of the telescopic rod (521), the clamping seat being used to clamp the main structure or crossbeam (101) of the exhaust pipe frame (10).

3. An exhaust pipe hanger support positioning device as defined in claim 2 wherein, It also includes a control unit, which includes an instruction output terminal and a pressure detection system. The instruction output terminal is used to preset the target output pressure of each clamping support (531) and to regulate the actual output pressure of the clamping support (531) through the hydraulic control system. The pressure detection system is used to detect the actual output pressure of each clamping support (531) in real time.

4. A support and positioning device for exhaust pipe hangers as defined in claim 1, wherein It also includes several auxiliary positioning mechanisms. The auxiliary positioning mechanisms are arranged at intervals on the platform (1) along the length direction of the exhaust pipe frame (10). Each auxiliary positioning mechanism includes a first positioning seat (61) and a limiting seat (6) fixedly connected to the platform (1). The first positioning seat (61) and the limiting seat (6) are arranged in parallel. The limiting seat (6) is provided with a limiting cylinder (62). The output end of the limiting cylinder (62) is provided with a push rod (63). The push rod (63) is arranged opposite to the first positioning seat (61) to lock and fix the main structure of the exhaust pipe frame (10) from the horizontal direction.

5. A tailpipe support positioning device as defined in claim 1, wherein, The first support fixing unit includes a fixed support base (2), a fixed oil cylinder (41) is provided on the side of the fixed support base (2), a drive rod (42) is provided at the output end of the fixed oil cylinder (41), the drive rod (42) is adjusted by the hydraulic oil circuit in the fixed oil cylinder (41), a first connecting rod (44) is hinged on the fixed oil cylinder (41), a first swing arm (43) is hinged at the end of the first connecting rod (44) away from the fixed oil cylinder (41), and the first connecting rod (44) is hinged to the middle of the first swing arm (43). The outer end of the drive rod (42) is hinged to one end of the first swing arm (43), and a pressure block is provided at the other end of the first swing arm (43). The pressure block is set opposite to the fixed support base (2).

6. An exhaust pipe hanger support positioning device as defined in claim 5 wherein, The second support fixing unit includes a support positioning block (21). The two fixed support seats (2) and the support positioning block (21) are arranged in a triangle. A telescopic hydraulic cylinder (7) is provided on the side of the support positioning block (21). A pressure plate (71) is fixedly connected to the output end of the telescopic hydraulic cylinder (7). The pressure plate (71) is directly opposite the support positioning block (21) to form a vertical clamping structure for the exhaust pipe frame (10).

7. A tailpipe support positioning device as defined in claim 1 wherein, It also includes a guide (3) and a positioning part. The guide (3) is arranged along the length of the exhaust pipe frame (10) and fixed on the platform (1) for guiding and positioning during the installation of the exhaust pipe frame (10). The positioning part includes a second positioning seat (8), which is fixedly connected to one side edge of the platform (1). The second positioning seat (8) is provided with a positioning cylinder, and the output end of the positioning cylinder is provided with an auxiliary positioning block (81) for positioning the end of the exhaust pipe frame (10).

8. A method for supporting and positioning an exhaust pipe frame, applied to the exhaust pipe frame support and positioning device according to any one of claims 1-7, for supporting and positioning a rectangular frame-type exhaust pipe frame (10) equipped with a connecting seat (102) and a crossbeam (101), characterized in that, Includes the following steps: S1: Reference guide positioning, move the exhaust pipe bracket (10) along the guide part (3) on the platform (1) to the preset installation area, start the positioning cylinder of the positioning part to drive the auxiliary positioning block (81) to extend, limit the end of the exhaust pipe bracket (10), and lock its reference position in the length direction; S2: The triangular support reference is established. The corresponding transmission structure is driven by the fixed cylinder (41) of the two sets of first support fixing units, which drives the pressure block to press down and cooperate with the fixed support seat (2) to vertically clamp the two sides of one end of the exhaust pipe frame (10). At the same time, the pressure plate (71) is driven by the telescopic hydraulic cylinder (7) of the second support fixing unit, which cooperates with the support positioning block (21) to vertically clamp the other end of the exhaust pipe frame (10), so that the two sets of first support fixing units and second support fixing units are triangularly distributed to form a stable support reference. S3: The floating support is adaptively adjusted. The main structure of the exhaust pipe frame (10) and the crossbeam (101) naturally press down on the floating support (51) at the corresponding position. The hydraulic oil circuit in the support cylinder (5) is adaptively adjusted so that each floating support (51) is in close contact with the contact area of ​​the exhaust pipe frame (10). After each floating support (51) is in place, the hydraulic control system closes the hydraulic oil circuit of each support cylinder (5) to lock the support height of each floating support (51). S4: The hydraulic control system drives the pressing cylinders (52) of each floating pressing part, which drive the corresponding transmission structure through the telescopic rod (521), or directly drive the pressing seat / pressing support (531) to press down, and cooperate with the corresponding floating support (51) to form a locking mechanism to vertically lock the main structure and crossbeam (101) of the exhaust pipe frame (10); S5: Horizontal auxiliary positioning, start the limit cylinder (62) of each auxiliary positioning mechanism, drive the push rod (63) to extend towards the first positioning seat (61), cooperate with the first positioning seat (61) to clamp and limit the main structure of the exhaust pipe frame (10) from the horizontal direction, and finally complete the full-dimensional support positioning of the exhaust pipe frame (10).

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