Multifunctional detection equipment for multistage centrifugal pump shell production line

Abstract

The present application belongs to the technical field of multistage centrifugal pump production, and particularly relates to a multifunctional detection device for a multistage centrifugal pump shell production line, which comprises a turnover clamping assembly, an inner support assembly component, a roundness detection component and a dynamic load simulation component; the turnover clamping assembly is used for clamping a thin-walled pump shell workpiece and placing it in a detection station; the inner support assembly component is used for cooperating with a screwing machine to install a filtering inner support assembly component in the thin-walled pump shell workpiece; the roundness detection component is used for detecting the roundness of the thin-walled pump shell workpiece before and after the installation of the filtering inner support assembly component and before and after dynamic load simulation pressure; and the dynamic load simulation component is used for dynamically loading the thin-walled pump shell workpiece before and after the installation of the filtering inner support assembly component. The present application can meet the requirements of the compression strength detection of the improved thin-walled pump shell before and after the installation of the filtering inner support assembly component and the roundness detection of each pipe cavity, and improves the detection efficiency and comprehensiveness.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of multistage centrifugal pump production, and particularly relates to a multifunctional detection equipment for a multistage centrifugal pump shell production line. BACKGROUND

[0002] In the multistage centrifugal pump shell production line, the compression strength detection of the pump shell is mainly used to verify the structural integrity and safe bearing capacity. As the core pressure-bearing component, the pump shell needs to withstand the impact of high-pressure fluid and cyclic load for a long time. The compression strength detection simulates the impact situation under actual working conditions through dynamic load testing to ensure that the pump shell has no deformation risk. If the strength is insufficient, it may cause high-pressure fluid leakage or even shell rupture, leading to equipment downtime and safety accidents, especially in the chemical or energy field where flammable and toxic media are transported. This detection is a necessary link to ensure the intrinsic safety of the equipment.

[0003] The roundness detection of the pump shell directly affects the fluid efficiency and running stability. Roundness deviation may cause uneven clearance between the impeller and the seal ring of the pump shell, damage the interstage sealing of the multistage pump, increase internal leakage loss, and reduce the head and efficiency. At the same time, roundness deviation may cause rotor vibration or friction between moving and static parts, accelerating bearing wear and shortening equipment life. The detection equipment in the production line ensures that the concentricity of the pump shell and the impeller meets the assembly standard, thereby optimizing the hydraulic performance and reducing mechanical failures.

[0004] The multistage centrifugal pump adopts a thin-walled pump shell design, which has advantages in lightweight, cost control, and adaptability to specific working conditions. The improved thin-walled pump shell is designed to improve the compression strength of the thin-walled pump shell and filter the incoming water. A filter-type inner support assembly with filtering function is added inside the pump shell.

[0005] The existing detection equipment for the multistage centrifugal pump shell production line has the following deficiencies: first, it cannot simultaneously satisfy the compression strength detection of the improved thin-walled pump shell before and after the filter-type inner support assembly is installed; second, it cannot satisfy the roundness detection requirements of each pipe cavity of the improved thin-walled pump shell. Therefore, the inventors expect to provide a multifunctional detection equipment for the multistage centrifugal pump shell production line. SUMMARY

[0006] The purpose of the present application is to overcome at least one of the above problems in the prior art and provide a multifunctional detection equipment for a multistage centrifugal pump shell production line.

[0007] To achieve the above technical purposes and effects, the present application is implemented by the following technical solutions:

[0008] The application provides a multifunctional detection equipment for a multistage centrifugal pump shell production line, which comprises a turnover clamping assembly, an inner support assembly component, a roundness detection component and a dynamic load simulation component.

[0009] The roundness detection component comprises an L-shaped base plate, a linear guide rail pair, a vertical plate, a load block, an anti-dropping head, a push shaft, a first roundness detection mechanism, a turnover mechanism, a third horizontal push rod, a second lifting push rod and a second roundness detection mechanism.

[0010] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the thin-wall pump shell workpiece comprises a pump shell pipe, a shaft penetrating pipe and a water inlet pipe, the inner end plate of the pump shell pipe is connected with the shaft penetrating pipe, the side end of the pump shell pipe is connected with the water inlet pipe, the outer end of the pump shell pipe is provided with a first flange end plate with a first connecting hole, the outer end of the shaft penetrating pipe is provided with a second flange end plate with a second connecting hole, the inner wall of the pump shell pipe is provided with a plurality of slot portions in the circumferential direction, one end of the slot portion extends to the inner end plate of the pump shell pipe, the inner wall of the pump shell pipe is provided with a plurality of mounting blocks in the circumferential direction at the other end close to the slot portion, the outer end of the mounting block is provided with a plurality of stepped holes inward, and the positions of the mounting blocks and the slot portions are staggered.

[0011] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the filter type inner support component comprises an inner support ring and an inner support plate uniformly distributed on the outer side of the inner support ring, a plurality of filter holes are formed in the inner support ring, the inner support plate can be clamped in the corresponding slot portion, and a plurality of flow guide holes are formed in the inner support plate; the inner diameter of the inner support ring is greater than the inner diameter of the shaft penetrating pipe, and the inner diameter of the shaft penetrating pipe is matched with the diameter of the pump shaft.

[0012] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the annular limiting plate comprises a ring body, a plurality of positioning protrusions capable of being clamped into the wide part of the corresponding stepped hole are arranged on the inner side of the ring body, the ring body and the positioning protrusions are jointly provided with a fastening through hole matched with a fastening screw, and a threaded hole matched with the fastening screw is arranged on the narrow part of the stepped hole; and the pump shell pipe is located in the peripheral area of the filter type inner support assembly as an impeller mounting area.

[0013] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the turnover clamping assembly comprises a first base plate, a first lifting push rod, a groove-shaped plate, a screw rod motor, a transmission rod, a screw rod segment, a first movable plate, a second movable plate, a first flange clamping member and a second flange clamping member, the first base plate is provided with the groove-shaped plate through the first lifting push rod, the outer side of the groove-shaped plate is provided with the screw rod motor, the output end of the screw rod motor is connected with the transmission rod, the transmission rod is provided with two screw rod segments with opposite rotation directions, the outer sides of the two screw rod segments are respectively sleeved with the first movable plate and the second movable plate which abut against the web part in the groove-shaped plate, the first flange clamping member is installed on the first movable plate, and the second flange clamping member is installed on the second movable plate.

[0014] The first flange clamping member comprises a first installation base ring, a first anti-off gear ring, a first movable ring, a first positioning protrusion, a first driving gear and a first turnover motor, the first installation base ring is installed on the first movable plate, the first installation base ring is connected with the first movable ring through the first anti-off gear ring, the outer side of the first movable ring is circumferentially provided with a plurality of first positioning protrusions, the first turnover motor is installed on the first movable plate, and the output end of the first turnover motor is provided with the first driving gear which is engaged with the first anti-off gear ring; the specifications of the first installation base ring and the first movable ring are matched with the specifications of the first flange end plate, and the first positioning protrusions are matched with the first connecting holes.

[0015] The second flange clamping member comprises a second installation base ring, a second anti-off gear ring, a second movable ring, a second positioning protrusion, a second driving gear and a second turnover motor, the second installation base ring is installed on the second movable plate, the second installation base ring is connected with the second movable ring through the second anti-off gear ring, the outer side of the second movable ring is circumferentially provided with a plurality of second positioning protrusions, the second turnover motor is installed on the second movable plate, and the output end of the second turnover motor is provided with the second driving gear which is engaged with the second anti-off gear ring; the specifications of the second installation base ring and the second movable ring are matched with the specifications of the second flange end plate, and the second positioning protrusions are matched with the second connecting holes.

[0016] Further, the multi-functional detection equipment for the multi-stage centrifugal pump shell production line, the inner support assembly includes a second mounting base, a reversing motor, a rotating plate, a first horizontal push rod, a first suction cup, a first positioning lug, a second horizontal push rod, a second suction cup and a second positioning lug, the rotating plate is installed on the second mounting base through the reversing motor, the first horizontal push rod and the second horizontal push rod are symmetrically installed on the rotating plate, the movable end of the first horizontal push rod is installed with the first positioning lug through the first suction cup, the specification of the first suction cup is matched with the specification of the inner support ring, the outer diameter of the first positioning lug is matched with the inner diameter of the inner support ring, the movable end of the second horizontal push rod is installed with the second positioning lug through the second suction cup, the specification of the second suction cup is matched with the specification of the annular limiting plate, the outer diameter of the second positioning lug is matched with the inner diameter of the annular limiting plate, and the operating avoiding opening for facilitating the screwing operation of the mechanical hand of the screwing machine is formed on the rotating plate close to the second suction cup.

[0017] Further, the multi-functional detection equipment for the multi-stage centrifugal pump shell production line, the inner support assembly includes a second mounting base, a reversing motor, a rotating plate, a first horizontal push rod, a first suction cup, a first positioning lug, a second horizontal push rod, a second suction cup and a second positioning lug, the rotating plate is installed on the second mounting base through the reversing motor, the first horizontal push rod and the second horizontal push rod are symmetrically installed on the rotating plate, the movable end of the first horizontal push rod is installed with the first positioning lug through the first suction cup, the specification of the first suction cup is matched with the specification of the inner support ring, the outer diameter of the first positioning lug is matched with the inner diameter of the inner support ring, the movable end of the second horizontal push rod is installed with the second positioning lug through the second suction cup, the specification of the second suction cup is matched with the specification of the annular limiting plate, the outer diameter of the second positioning lug is matched with the inner diameter of the annular limiting plate, and the operating avoiding opening for facilitating the screwing operation of the mechanical hand of the screwing machine is formed on the rotating plate close to the second suction cup.

[0018] The first roundness detection mechanism includes a base frame, a carrier plate, a universal ball seat, a first inclination adjusting push rod, a first ear plate, a second inclination adjusting push rod and a second ear plate, the two ends of the carrier plate are respectively rotationally connected with one end of the base frame and the universal ball seat, the two ends of the first inclination adjusting push rod are respectively connected with the other end of the base frame and the carrier plate through the first ear plate, the cylinder body of the second inclination adjusting push rod is installed on the carrier plate, and the movable end of the second inclination adjusting push rod is rotationally connected with the universal ball seat through the second ear plate.

[0019] The second roundness detection mechanism includes a base, a suspension shaft, a mounting seat, a fourth reversing motor, an anti-skid belt transmission member, a driving motor, a driving gear, a movable rack and a roller seat, the upper end of the suspension shaft is movably limited in the base, the fourth reversing motor is installed on the base, the output end of the fourth reversing motor is transmissionally connected with the suspension shaft through the anti-skid belt transmission member, the driving motor is installed on the lower end of the suspension shaft through the mounting seat, the output end of the driving motor is installed with the driving gear, the driving gear is installed with the movable racks which are centrally and symmetrically distributed on the two sides of the driving gear, the outer end of the movable rack is installed with the roller seat, and the mounting seat is provided with the movable cavity for facilitating the movement of the driving gear and the two sliding grooves for facilitating the sliding of the movable rack.

[0020] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the dynamic load simulation assembly comprises a third mounting base plate, a horizontal push rod, a righting section tube, a supporting block, a driven balance gear, a supporting shaft, a vertical box, a fifth overturning motor, a third driving gear, a weight, an impact rod and a locking push rod, the third mounting base plate is provided with the supporting block through the horizontal push rod and the righting section tube, the supporting block movably limits the driven balance gear, the driven balance gear is provided with the vertical box through the supporting shaft, the outer side of the supporting block is provided with the fifth overturning motor, the output end of the fifth overturning motor is provided with the third driving gear meshing with the driven balance gear, the vertical box movably limits the weight, the two sides of the weight are symmetrically provided with the impact rod, and the outer side of the vertical box is symmetrically provided with two locking push rods for locking the position of the weight.

[0021] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the dynamic load simulation assembly comprises a third mounting base plate, a horizontal push rod, a righting section tube, a supporting block, a driven balance gear, a supporting shaft, a vertical box, a fifth overturning motor, a third driving gear, a weight, an impact rod and a locking push rod, the third mounting base plate is provided with the supporting block through the horizontal push rod and the righting section tube, the supporting block movably limits the driven balance gear, the driven balance gear is provided with the vertical box through the supporting shaft, the outer side of the supporting block is provided with the fifth overturning motor, the output end of the fifth overturning motor is provided with the third driving gear meshing with the driven balance gear, the vertical box movably limits the weight, the two sides of the weight are symmetrically provided with the impact rod, and the outer side of the vertical box is symmetrically provided with two locking push rods for locking the position of the weight.

[0022] Further, in the multifunctional detection equipment for the multistage centrifugal pump shell production line, the dynamic load simulation assembly comprises a third mounting base plate, a horizontal push rod, a righting section tube, a supporting block, a driven balance gear, a supporting shaft, a vertical box, a fifth overturning motor, a third driving gear, a weight, an impact rod and a locking push rod, the third mounting base plate is provided with the supporting block through the horizontal push rod and the righting section tube, the supporting block movably limits the driven balance gear, the driven balance gear is provided with the vertical box through the supporting shaft, the outer side of the supporting block is provided with the fifth overturning motor, the output end of the fifth overturning motor is provided with the third driving gear meshing with the driven balance gear, the vertical box movably limits the weight, the two sides of the weight are symmetrically provided with the impact rod, and the outer side of the vertical box is symmetrically provided with two locking push rods for locking the position of the weight.

[0023] The beneficial effects of the present application are:

[0024] 1. Multifunctional integration: The overturning clamping, inner support assembly, roundness detection and dynamic load simulation functions are integrated, which can meet the requirements of the improved thin-walled pump shell before and after the installation of the filter-type inner support assembly, improve the detection efficiency and comprehensiveness.

[0025] 2. Strong adaptability: A special filter-type inner support assembly is designed according to the special structure of the improved thin-walled pump shell, and a corresponding inner support assembly assembly is provided, which can accurately install the inner support assembly and ensure the accuracy of detection.

[0026] 3. Accurate detection: The roundness detection assembly is provided with a first roundness detection mechanism and a second roundness detection mechanism, which can detect the inner wall roundness of the pump shell pipe, shaft pipe, inner support ring and water inlet pipe respectively, and has comprehensive detection range and high precision.

[0027] 4. Simulate real working conditions: The dynamic load simulation assembly can apply dynamic load to the outer wall of the pump shell pipe and shaft pipe, simulate the impact situation under actual working conditions, and effectively verify the compression strength and structural integrity of the pump shell.

[0028] 5. High degree of automation: each component is connected and controlled by a controller, realizing automatic operation of the detection process, reducing manual intervention, and improving detection efficiency and stability.

[0029] Of course, implementing any product of the present application does not necessarily require all the above advantages to be achieved at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0032] Figure 2 It is a schematic diagram of the overall structure of the improved thin-walled pump shell in the present application;

[0033] Figure 3 It is a schematic diagram of the exploded structure of the improved thin-walled pump shell in the present application;

[0034] Figure 4 It is a schematic diagram of the semi-section structure of the thin-walled pump shell workpiece in the present application;

[0035] Figure 5 It is a schematic diagram of the structure of the filter type inner support member in the present application;

[0036] Figure 6 It is a schematic diagram of the structure of the annular limiting plate in the present application;

[0037] Figure 7 It is a schematic diagram of the structure of the turnover type clamping assembly in the present application;

[0038] Figure 8 It is a schematic diagram of the structure of the inner support assembly assembly in the present application;

[0039] Figure 9 It is a schematic diagram of the structure of the roundness detection assembly in the present application;

[0040] Figure 10 It is a schematic diagram of the structure of the turnover mechanism in the present application;

[0041] Figure 11 It is a schematic diagram of the structure of the first roundness detection mechanism in the present application;

[0042] Figure 12 It is a schematic diagram of the structure of the second roundness detection mechanism in the present application;

[0043] Figure 13 The first use state diagram of the dynamic load simulation assembly in the present application;

[0044] Figure 14 The second use state diagram of the dynamic load simulation assembly in the present application;

[0045] Figure 15 The connection block diagram of the main electrical components in the present application;

[0046] In the drawings, the components represented by each reference numeral are as follows:

[0047] 1 - flip clamping assembly, 101 - first base plate, 102 - first lifting push rod, 103 - groove plate, 104 - screw motor, 105 - transmission rod, 106 - screw rod section, 107 - first movable plate, 108 - second movable plate, 109 - first mounting base ring, 110 - first anti - falling gear ring, 111 - first movable ring, 112 - first positioning protrusion, 113 - first flip motor, 114 - first driving gear, 115 - second mounting base ring, 116 - second anti - falling gear ring, 117 - second movable ring, 118 - second positioning protrusion, 119 - second flip motor, 120 - second driving gear;

[0048] 2 - inner support assembly, 201 - second mounting base plate, 202 - reversing motor, 203 - rotating plate, 204 - first horizontal push rod, 205 - first suction cup, 206 - first positioning protrusion, 207 - second horizontal push rod, 208 - second suction cup, 209 - second positioning protrusion;

[0049] 3 - roundness detection assembly, 301 - L-shaped base plate, 302 - linear guide pair, 303 - vertical plate, 304 - load block, 305 - anti - falling head, 306 - push shaft, 307 - first roundness detection mechanism, 307a - base frame, 307b - load plate, 307c - universal ball seat, 307d - first inclination adjusting push rod, 307e - first ear plate, 307f - second inclination adjusting push rod, 307g - second ear plate, 308 - flip mechanism, 308a - third flip motor, 308b - driving pulley, 308c - synchronous belt, 308d - driven pulley, 309 - third horizontal push rod, 310 - second lifting push rod, 311 - second roundness detection mechanism, 311a - base, 311b - suspension shaft, 311c - mounting seat, 311d - fourth flip motor, 311e - anti - slip belt transmission member, 311f - driving motor, 311g - driving gear, 311h - movable rack, 311i - roller seat;

[0050] 4 - dynamic load simulation assembly, 401 - third mounting base plate, 402 - horizontal push rod, 403 - centralizing sleeve, 404 - support block, 405 - driven balance gear, 406 - support shaft, 407 - vertical box, 407a - sliding cavity, 407b - impact hole, 407c - locking hole, 408 - fifth turnover motor, 409 - third driving gear, 410 - weight, 411 - impact rod, 412 - locking push rod;

[0051] 5 - thin-walled pump shell workpiece, 501 - pump shell pipe, 502 - through shaft pipe, 503 - water inlet pipe, 504 - first flange end plate, 505 - first connecting hole, 506 - second flange end plate, 507 - second connecting hole, 508 - slot part, 509 - mounting block, 510 - stepped hole;

[0052] 6 - filter type inner support member, 601 - inner support ring, 602 - inner support plate, 603 - filter hole, 604 - flow guide hole;

[0053] 7 - annular limiting plate, 701 - ring body, 702 - positioning protrusion, 703 - fastening through hole;

[0054] 8 - fastening screw;

[0055] 9 - controller. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0057] As shown in the drawings, Figure 1 The present embodiment provides a multifunctional detection device for a multistage centrifugal pump shell production line, which comprises a turnover clamping assembly 1, an inner support assembly assembly 2, a roundness detection assembly 3, and a dynamic load simulation assembly 4. The turnover clamping assembly 1 is arranged below the detection station and is used to clamp a thin-walled pump shell workpiece 5 and place it in the detection station. The inner support assembly assembly 2 is arranged on the left side of the detection station and is used to cooperate with a screwing machine to install a filter type inner support assembly composed of a filter type inner support member 6, an annular limiting plate 7, and a fastening screw 8 in the interior of the thin-walled pump shell workpiece 5. The roundness detection assembly 3 is arranged on the right side of the detection station and is used to detect the roundness of the thin-walled pump shell workpiece 5 before and after the filter type inner support assembly is installed and before and after dynamic load pressure is applied. The dynamic load simulation assembly 4 is arranged on the upper side of the detection station and is used to apply dynamic load pressure to the thin-walled pump shell workpiece 5 before and after the filter type inner support assembly is installed.

[0058] In this embodiment, the improved thin-wall pump shell structure is shown in Figures 2-3

[0059] As shown in Figure 4 , the thin-wall pump shell workpiece 5 includes a pump shell pipe 501, a shaft penetrating pipe 502 and a water inlet pipe 503, the inner end plate of the pump shell pipe 501 is connected with the shaft penetrating pipe 502, and the side end of the pump shell pipe 501 is connected with the water inlet pipe 503. The outer end of the pump shell pipe 501 is provided with a first flange end plate 504 with a first connecting hole 505, and the outer end of the shaft penetrating pipe 502 is provided with a second flange end plate 506 with a second connecting hole 507. The inner wall of the pump shell pipe 501 is provided with a plurality of slot portions 508 in the circumferential direction, one end of the slot portion 508 extends to the inner end plate of the pump shell pipe 501, and the inner wall of the pump shell pipe 501 is provided with a plurality of mounting blocks 509 in the circumferential direction at the other end close to the slot portion 508, the outer end of the mounting block 509 is provided with a plurality of stepped holes 510 inwardly, and the positions of the mounting blocks 509 and the slot portions 508 are staggered.

[0060] As shown in Figure 5 , the filter type inner support member 6 is composed of an inner support ring 601 and inner support plates 602 uniformly distributed on the outer side of the inner support ring 601, a plurality of filter holes 603 are formed in the inner support ring 601, the inner support plates 602 can be clamped in the corresponding slot portions 508, and a plurality of flow guide holes 604 are formed in the inner support plates 602. The inner diameter of the inner support ring 601 is greater than the inner diameter of the shaft penetrating pipe 502, and the inner diameter of the shaft penetrating pipe 502 cooperates with the diameter of the pump shaft.

[0061] As shown in Figure 6 , the annular limiting plate 7 includes a ring body 701, a plurality of positioning protrusions 702 capable of being clamped into the wide part of the corresponding stepped hole 510 are arranged on the inner side of the ring body 701, the ring body 701 and the positioning protrusions 702 jointly form a fastening through hole 703 matched with the fastening screw 8, and the narrow part of the stepped hole 510 is provided with a threaded hole matched with the fastening screw 8; the pump shell pipe 501 located in the peripheral area of the filter type inner support assembly serves as an impeller mounting area.

[0062] As shown in Figure 7 ​As shown, the flip clamping assembly 1 comprises a first base plate 101, a first lifting push rod 102, a groove plate 103, a screw motor 104, a transmission rod 105, a screw segment 106, a first movable plate 107, a second movable plate 108, a first flange clamping member and a second flange clamping member. The first base plate 101 is provided with the groove plate 103 through the first lifting push rod 102, the groove plate 103 is provided with the screw motor 104 on the outer side, the output end of the screw motor 104 is connected with the transmission rod 105, and the transmission rod 105 is provided with two screw segments 106 with opposite rotation directions. The outer sides of the two screw segments 106 are respectively sleeved with the first movable plate 107 and the second movable plate 108 which are in abutment with the web plate part in the groove plate 103, the first movable plate 107 is provided with the first flange clamping member, and the second movable plate 108 is provided with the second flange clamping member.

[0063] The first flange clamping member comprises a first mounting base ring 109, a first anti-off gear ring 110, a first movable ring 111, a first positioning protrusion 112, a first driving gear 114 and a first flip motor 113. The first mounting base ring 109 is mounted on the first movable plate 107, the first mounting base ring 109 is connected with the first movable ring 111 through the first anti-off gear ring 110, the outer side of the first movable ring 111 is provided with a plurality of first positioning protrusions 112 in the circumferential direction, the first flip motor 113 is mounted on the first movable plate 107, and the output end of the first flip motor 113 is provided with the first driving gear 114 which is in mesh with the first anti-off gear ring 110; the specifications of the first mounting base ring 109 and the first movable ring 111 are matched with the specifications of the first flange end plate 504, and the first positioning protrusions 112 are matched with the first connecting holes 505.

[0064] The second flange clamping member comprises a second mounting base ring 115, a second anti-off gear ring 116, a second movable ring 117, a second positioning protrusion 118, a second driving gear 120 and a second flip motor 119. The second mounting base ring 115 is mounted on the second movable plate 108, the second mounting base ring 115 is connected with the second movable ring 117 through the second anti-off gear ring 116, the outer side of the second movable ring 117 is provided with a plurality of second positioning protrusions 118 in the circumferential direction, the second flip motor 119 is mounted on the second movable plate 108, and the output end of the second flip motor 119 is provided with the second driving gear 120 which is in mesh with the second anti-off gear ring 116; the specifications of the second mounting base ring 115 and the second movable ring 117 are matched with the specifications of the second flange end plate 506, and the second positioning protrusions 118 are matched with the second connecting holes 507.

[0065] As Figure 8As shown, the inner support assembly 2 includes a second mounting base plate 201, a reversing motor 202, a rotating plate 203, a first horizontal push rod 204, a first suction cup 205, a first positioning lug 206, a second horizontal push rod 207, a second suction cup 208, and a second positioning lug 209. The second mounting base plate 201 is provided with the rotating plate 203 through the reversing motor 202, the rotating plate 203 is symmetrically provided with the first horizontal push rod 204 and the second horizontal push rod 207, the movable end of the first horizontal push rod 204 is provided with the first positioning lug 206 through the first suction cup 205, the specification of the first suction cup 205 is matched with the specification of the inner support ring 601, the outer diameter of the first positioning lug 206 is matched with the inner diameter of the inner support ring 601, the movable end of the second horizontal push rod 207 is provided with the second positioning lug 209 through the second suction cup 208, the specification of the second suction cup 208 is matched with the specification of the annular limiting plate 7, and the outer diameter of the second positioning lug 209 is matched with the inner diameter of the annular limiting plate 7. The rotating plate 203 is provided with an operation avoiding port 210 close to the second suction cup 208, which is convenient for the screwing operation of the mechanical hand of the screwing machine.

[0066] As shown in Figure 9 , the roundness detection assembly 3 includes an L-shaped base plate 301, a linear guide pair 302, a vertical plate 303, a load block 304, an anti-dropping head 305, a push shaft 306, a first roundness detection mechanism 307, a turnover mechanism 308, a third horizontal push rod 309, a second lifting push rod 310, and a second roundness detection mechanism 311. The slide rail of the linear guide pair 302 and the vertical plate 303 are respectively installed on the outer side of the horizontal plate part of the L-shaped base plate 301, and the load block 304 is fixed on the outer side of the slide block of the linear guide pair 302. One end of the push shaft 306 is provided with the anti-dropping head 305 movably limited in the load block 304, and the other end of the push shaft 306 is provided with the first roundness detection mechanism 307. The L-shaped base plate 301 and the vertical plate 303 are jointly provided with the turnover mechanism 308 for driving the push shaft 306 to turn around its own axis. The vertical plate part of the L-shaped base plate 301 is provided with the third horizontal push rod 309, the movable end of the third horizontal push rod 309 is provided with the second lifting push rod 310 through a support, and the movable end of the second lifting push rod 310 is provided with the second roundness detection mechanism 311.

[0067] As shown in Figure 10 , the turnover mechanism 308 includes a third turnover motor 308a, a driving pulley 308b, a synchronous belt 308c, and a driven pulley 308d, the output end of the third turnover motor 308a is provided with the driving pulley 308b, and the driving pulley 308b is drivingly connected with the driven pulley 308d through the synchronous belt 308c. The driven pulley 308d is movably supported by the vertical plate, and the driven pulley 308d is provided with a shaft hole for the push shaft to pass through, and the inner wall of the shaft hole is provided with a key, and the outer side of the push shaft 306 is provided with a key groove matched with the key.

[0068] AsFigure 11 As shown in the figure, the first roundness detection mechanism 307 comprises a base frame 307a, a carrier plate 307b, a universal ball seat 307c, a first inclination adjusting push rod 307d, a first ear plate 307e, a second inclination adjusting push rod 307f and a second ear plate 307g. The base frame 307a is composed of an L-shaped frame plate and ear seats respectively arranged at both ends thereof, the carrier plate 307b is rotatably connected with one end of the base frame 307a and the universal ball seat 307c respectively, the two ends of the first inclination adjusting push rod 307d are connected with the other end of the base frame 307a and the carrier plate 307b through the first ear plate 307e, the cylinder body of the second inclination adjusting push rod 307f is mounted on the carrier plate 307b, and the movable end of the second inclination adjusting push rod 307f is rotatably connected with the universal ball seat 307c through the second ear plate 307g. The first roundness detection mechanism 307 can detect the inner wall roundness of the pump shell pipe 501, the through shaft pipe 502 and the inner support ring 601.

[0069] As shown in the figure, Figure 12 The second roundness detection mechanism 311 comprises a base 311a, a suspension shaft 311b, a mounting seat 311c, a fourth overturning motor 311d, an anti-slip belt transmission member 311e, a driving motor 311f, a driving gear 311g, a movable rack 311h and a roller seat 311i. The upper end of the suspension shaft 311b is movably limited in the base 311a, the fourth overturning motor 311d is mounted on the base 311a, and the output end of the fourth overturning motor 311d is drivingly connected with the suspension shaft 311b through the anti-slip belt transmission member 311e. The lower end of the suspension shaft 311b is provided with the driving motor 311f through the mounting seat 311c, and the output end of the driving motor 311f is provided with the driving gear 311g. The driving gear 311g is provided with the movable racks 311h which are centrally symmetrically distributed on both sides of the driving gear 311g, the outer ends of the movable racks 311h are provided with the roller seats 311i, and the mounting seat 311c is provided with a movable cavity for facilitating the movement of the driving gear 311g and two sliding grooves for facilitating the sliding of the movable racks 311h. The second roundness detection mechanism 311 can detect the inner wall roundness of the water inlet pipe 503.

[0070] As shown in the figure, Figures 13-14As shown, the dynamic load simulation assembly 4 comprises a third mounting base plate 401, a horizontal push rod 402, a righting section tube 403, a support block 404, a driven balance gear 405, a support shaft 406, a vertical box 407, a fifth overturning motor 408, a third driving gear 409, a weight 410, an impact rod 411 and a locking push rod 412. The third mounting base plate 401 is mounted with the support block 404 through the horizontal push rod 402 and the righting section tube 403, and the support block 404 movably limits the driven balance gear 405, and the driven balance gear 405 is mounted with the vertical box 407 through the support shaft 406. The fifth overturning motor 408 is mounted on the outer side of the support block 404, and the output end of the fifth overturning motor 408 is mounted with the third driving gear 409 which is engaged with the driven balance gear 405. The weight 410 is slidingly limited in the vertical box 407, and the impact rod 411 is symmetrically mounted on two sides of the weight 410, and two locking push rods 412 for locking the position of the weight 410 are symmetrically mounted on the outer side of the vertical box 407. The vertical box 407 is internally provided with a sliding cavity 407a matched with the weight 410, the upper and lower end plates of the vertical box 407 are symmetrically provided with impact holes 407b matched with the impact rods 411, and the side plate of the vertical box 407 is provided with locking holes 407c for facilitating the movement of the movable rods in the locking push rods 412. The dynamic load simulation assembly 4 can exert dynamic load on the outer wall of the pump shell pipe 501 and the shaft penetrating pipe 502.

[0071] In the embodiment, the height difference between the bottom end faces of the vertical box before and after being overturned by 180 degrees through the support shaft cooperates with the height difference of the uppermost sides of the pump shell pipe and the shaft penetrating pipe in the thin-walled pump shell workpiece.

[0072] As shown, Figure 15 The controller 9 is connected with the overturning clamping assembly 1, the inner supporting assembly assembly 2, the roundness detection assembly 3 and the dynamic load simulation assembly 4 respectively.

[0073] The working principle of the embodiment is as follows:

[0074] 1. Clamping the workpiece: the overturning clamping assembly 1 works, the first lifting push rod 102 adjusts the height of the groove-shaped plate 103, the lead screw motor 104 drives the transmission rod 105 to rotate, so that the two wire segments 106 with opposite rotation directions respectively drive the first movable plate 107 and the second movable plate 108 to move towards or away from each other. The first overturning motor 113 of the first flange clamping member drives the first driving gear 114 to rotate, and the first anti-escape gear ring 110 drives the first movable ring 111 to rotate, and the first positioning protrusion 112 is inserted into the first connecting hole 505; the second flange clamping member is the same, and the second positioning protrusion 118 is inserted into the second connecting hole 507, so as to clamp the thin-walled pump shell workpiece 5 and make it in the detection position.

[0075] 2. Inner support assembly: the inner support assembly component 2 starts working, the reversing motor 202 drives the rotating plate 203 to rotate, so that the first horizontal push rod 204 and the second horizontal push rod 207 are aligned with the inner support ring 601 and the annular limiting plate 7 respectively. The first horizontal push rod 204 pushes the first suction cup 205 to adsorb the inner support ring 601, and the first positioning protrusion 206 is inserted into the inner support ring 601; the second horizontal push rod 207 pushes the second suction cup 208 to adsorb the annular limiting plate 7, and the second positioning protrusion 209 is inserted into the annular limiting plate 7. Then the rotating plate 203 is rotated to the appropriate position, the first horizontal push rod 204 and the second horizontal push rod 207 respectively send the inner support ring 601 and the annular limiting plate 7 into the thin-walled pump shell workpiece 5, the inner support plate 602 is clamped into the slot part 508, the positioning protrusion 702 is clamped into the wide part of the stepped hole 510, and the screwing machine is operated through the avoiding port 210 to screw the fastening screw 8 into the fastening through hole 703 and the threaded hole, and the assembly of the filter type inner support assembly is completed.

[0076] 3. Roundness detection:

[0077] Pre-installation of inner support assembly detection: the roundness detection component 3 works, the linear guide pair 302 drives the carrier block 304 to move, so that the first roundness detection mechanism 307 approaches the pump shell pipe 501, the shaft pipe 502 and other parts. The third overturning motor 308a of the overturning mechanism 308 drives the driving pulley 308b to rotate, and drives the driven pulley 308d to rotate through the synchronous belt 308c, so that the push shaft 306 drives the first roundness detection mechanism 307 to overturn to the appropriate angle. The first inclination adjusting push rod 307d and the second inclination adjusting push rod 307f of the first roundness detection mechanism 307 adjust the angle of the carrier plate 307b and the universal ball seat 307c, so that the detection end is in contact with the detected part for roundness detection. At the same time, the third horizontal push rod 309 and the second lifting push rod 310 adjust the position of the second roundness detection mechanism 311, so that it detects the inner wall roundness of the water inlet pipe 503 overturned to the upper side.

[0078] Post-installation of inner support assembly detection: repeat the above detection steps to detect the roundness of the thin-walled pump shell workpiece 5 after installing the filter type inner support assembly.

[0079] 4. Dynamic load simulation: the dynamic load simulation assembly 4 works, the horizontal push rod 402 adjusts the position of the support block 404, so that the driven balance gear 405 meshes with the third driving gear 409. The fifth overturning motor 408 drives the third driving gear 409 to rotate, so that the driven balance gear 405 drives the vertical box 407 to overturn 180° through the support shaft 406. The height difference of the bottom end face of the vertical box 407 cooperates with the height difference of the uppermost side of the pump shell pipe and the shaft pipe in the thin-walled pump shell workpiece 5, and determines whether the overturning operation is needed according to the position of the object to be pressed. The locking push rod 412 unlocks the weight 410, and the weight 410 slides along the sliding cavity 407a under the action of gravity. The impact rod 411 applies dynamic load to the outer wall of the pump shell pipe 501 and the shaft pipe 502 through the impact hole 407b, simulating the impact situation under actual working conditions. After each impact, the weight 410 can be reset by slow overturning.

[0080] 5. Roundness detection again: after dynamic load simulation, the roundness detection assembly 3 detects the roundness of the thin-walled pump shell workpiece 5 again to verify the roundness change under the action of dynamic load.

[0081] During the whole detection process, the controller 9 is connected with and controls the overturning clamping assembly 1, the inner supporting assembly assembly 2, the roundness detection assembly 3 and the dynamic load simulation assembly 4 respectively, realizes the coordinated work of each assembly, and ensures the automation and accuracy of the detection process.

[0082] The preferred embodiments disclosed above are only for the purpose of helping to explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A multi-functional testing device for a multi-stage centrifugal pump casing production line, characterized in that, The system includes a flip-type clamping assembly, an internal support assembly assembly, a roundness detection assembly, and a dynamic load simulation assembly. The flip-type clamping assembly is located below the detection station and is used to clamp the thin-walled pump housing workpiece and position it in the detection station. The internal support assembly assembly is located on the left side of the detection station and is used in conjunction with a screw-tightening machine to install a filter-type internal support assembly, consisting of a filter-type internal support component, an annular limiting plate, and fastening screws, inside the thin-walled pump housing workpiece. The roundness detection assembly is located on the right side of the detection station and is used to detect the roundness of the thin-walled pump housing workpiece before and after the filter-type internal support assembly is installed, as well as before and after dynamic load simulation pressure application. The dynamic load simulation assembly is located above the detection station and is used to apply dynamic load pressure to the thin-walled pump housing workpiece before and after the filter-type internal support assembly is installed. The roundness detection assembly includes an L-shaped base plate, a linear guide pair, a vertical plate, a carrier block, an anti-detachment head, a push shaft, a first roundness detection mechanism, a flipping mechanism, a third horizontal push rod, a second lifting push rod, and a second roundness detection mechanism. The slide rail and the vertical plate of the linear guide pair are respectively installed on the outer side of the horizontal plate portion of the L-shaped base plate. A carrier block is fixed to the outer side of the slider of the linear guide pair. An anti-detachment head that is movable and restricted in the carrier block is installed at one end of the push shaft. The first roundness detection mechanism is installed at the other end of the push shaft. The L-shaped base plate and the vertical plate are jointly equipped with a flipping mechanism for driving the push shaft to flip around its own axis. A third horizontal push rod is installed on the vertical plate portion of the L-shaped base plate. The movable end of the third horizontal push rod is equipped with a second lifting push rod via a bracket. The movable end of the second lifting push rod is equipped with the second roundness detection mechanism. The inner support assembly includes a second mounting base plate, a reversing motor, a rotating plate, a first horizontal push rod, a first suction cup, a first positioning protrusion, a second horizontal push rod, a second suction cup, and a second positioning protrusion. The rotating plate is mounted on the second mounting base plate via the reversing motor. The first horizontal push rod and the second horizontal push rod are symmetrically mounted on the rotating plate. The movable end of the first horizontal push rod is mounted with the first positioning protrusion via the first suction cup. The specifications of the first suction cup are compatible with the specifications of the inner support ring. The outer diameter of the first positioning protrusion is compatible with the inner diameter of the inner support ring. The movable end of the second horizontal push rod is mounted with the second positioning protrusion via the second suction cup. The specifications of the second suction cup are compatible with the specifications of the annular limiting plate. The outer diameter of the second positioning protrusion is compatible with the inner diameter of the annular limiting plate.

2. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 1, characterized in that, The thin-walled pump casing workpiece includes a pump casing tube, a through-shaft tube, and a water inlet pipe. The inner end plate of the pump casing tube is connected to the through-shaft tube, and the side end of the pump casing tube is connected to the water inlet pipe. The outer end of the pump casing tube is provided with a first flange end plate with a first connecting hole, and the outer end of the through-shaft tube is provided with a second flange end plate with a second connecting hole. The inner wall of the pump casing tube is provided with multiple slots along the circumference. One end of the slot extends to the inner end plate of the pump casing tube. The inner wall of the pump casing tube is provided with multiple mounting blocks along the circumference at the other end near the slot. The outer end of the mounting block is provided with multiple stepped holes. The position of the mounting block is staggered from the position of the slot.

3. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 2, characterized in that, The filter-type inner support component consists of an inner support ring and inner support plates evenly distributed on its outer side. The inner support ring has several filter holes, and the inner support plates can be snapped into corresponding slots. The inner support plates have several guide holes. The inner diameter of the inner support ring is larger than the inner diameter of the through-shaft tube, and the inner diameter of the through-shaft tube matches the diameter of the pump shaft.

4. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 3, characterized in that, The annular limiting plate includes a ring body, and the inner side of the ring body is provided with a plurality of positioning protrusions that can be inserted into the wide part of the corresponding stepped hole. The ring body and the positioning protrusions are provided with a fastening through hole that cooperates with the fastening screw. The narrow part of the stepped hole is provided with a threaded hole that cooperates with the fastening screw. The pump casing tube is located in the outer area of ​​the filter-type inner support assembly as the impeller mounting area.

5. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 4, characterized in that, The flip-type clamping assembly includes a first base plate, a first lifting push rod, a channel plate, a lead screw motor, a transmission rod, lead screw segments, a first movable plate, a second movable plate, a first flange clamping component, and a second flange clamping component. The channel plate is mounted on the first base plate via the first lifting push rod. A lead screw motor is mounted on the outer side of the channel plate. The output end of the lead screw motor is connected to the transmission rod. The transmission rod has two lead screw segments with opposite rotation directions. The outer sides of the two lead screw segments are respectively fitted with a first movable plate and a second movable plate that abut against the web portion of the channel plate. A first flange clamping component is mounted on the first movable plate, and a second flange clamping component is mounted on the second movable plate. The first flange clamping component includes a first mounting base ring, a first anti-disengagement toothed ring, a first movable ring, a first positioning protrusion, a first drive gear, and a first tilting motor. The first mounting base ring is mounted on a first movable plate. The first mounting base ring is connected to the first movable ring via the first anti-disengagement toothed ring. Several first positioning protrusions are installed circumferentially on the outer side of the first movable ring. The first tilting motor is mounted on the first movable plate. The output end of the first tilting motor is equipped with a first drive gear that meshes with the first anti-disengagement toothed ring. The specifications of the first mounting base ring and the first movable ring are matched with the specifications of the first flange end plate. The first positioning protrusion is matched with the first connecting hole. The second flange clamping component includes a second mounting base ring, a second anti-disengagement toothed ring, a second movable ring, a second positioning protrusion, a second drive gear, and a second tilting motor. The second mounting base ring is mounted on the second movable plate. The second mounting base ring is connected to the second movable ring via the second anti-disengagement toothed ring. Several second positioning protrusions are installed circumferentially on the outer side of the second movable ring. The second tilting motor is mounted on the second movable plate. The output end of the second tilting motor is equipped with a second drive gear that meshes with the second anti-disengagement toothed ring. The specifications of the second mounting base ring and the second movable ring are matched with the specifications of the second flange end plate. The second positioning protrusion is matched with the second connecting hole.

6. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 5, characterized in that, The rotating plate has an operation clearance near the second suction cup to facilitate the screw-tightening operation of the screw-tightening machine's robotic arm.

7. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 6, characterized in that, The flipping mechanism includes a third flipping motor, a driving pulley, a synchronous belt, and a driven pulley. The output end of the third flipping motor is equipped with a driving pulley. The driving pulley is connected to the driven pulley via the synchronous belt. The driven pulley is provided with movable support by a vertical plate. The driven pulley has a shaft hole for the push shaft to pass through. The inner wall of the shaft hole is provided with a protruding key. The outer side of the push shaft is provided with a keyway that mates with the protruding key. The first roundness detection mechanism includes a base frame, a carrier plate, a universal ball seat, a first tilt adjustment rod, a first ear plate, a second tilt adjustment rod, and a second ear plate. The two ends of the carrier plate are rotatably connected to one end of the base frame and the universal ball seat, respectively. The two ends of the first tilt adjustment rod are connected to the other end of the base frame and the carrier plate via the first ear plate, respectively. The cylinder of the second tilt adjustment rod is mounted on the carrier plate, and the movable end of the second tilt adjustment rod is rotatably connected to the universal ball seat via the second ear plate. The second roundness detection mechanism includes a base, a suspension shaft, a mounting base, a fourth tilting motor, an anti-slip belt transmission component, a drive motor, a drive gear, a movable rack, and a roller seat. The upper end of the suspension shaft is movablely restricted in the base. The fourth tilting motor is mounted on the base. The output end of the fourth tilting motor is connected to the suspension shaft via the anti-slip belt transmission component. The lower end of the suspension shaft is mounted on the mounting base. The output end of the drive motor is mounted on the drive gear. Movable racks are centrally symmetrically distributed on both sides of the drive gear. A roller seat is mounted on the outer end of the movable rack. The mounting base has a movable cavity to facilitate the movement of the drive gear and two grooves to facilitate the sliding of the movable rack.

8. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 7, characterized in that, The dynamic load simulation component includes a third mounting base, a horizontal push rod, a straightening tube, a support block, a driven balancing gear, a support shaft, a vertical box, a fifth flip motor, a third driving gear, a weight, an impact rod, and a locking push rod. The third mounting base is mounted with a support block via the horizontal push rod and the straightening tube. A driven balancing gear is movable within the support block. The driven balancing gear is mounted with a vertical box via the support shaft. A fifth flip motor is mounted on the outer side of the support block. The output end of the fifth flip motor is fitted with a third driving gear that meshes with the driven balancing gear. A weight is slidably contained within the vertical box. Impact rods are symmetrically mounted on both sides of the weight. Two locking push rods for locking the weight's position are symmetrically mounted on the outer side of the vertical box. The interior of the vertical box has a sliding cavity that mates with the weight. The upper and lower end plates of the vertical box have symmetrically opened impact holes that mate with the impact rods. The side plates of the vertical box have locking holes that facilitate the movement of the movable rod in the locking push rod.

9. The multi-functional testing equipment for a multi-stage centrifugal pump casing production line according to claim 8, characterized in that, The height difference of the bottom end face of the vertical box before and after being rotated 180 degrees by the support shaft is matched with the height difference of the uppermost side of the pump shell tube and the through-shaft tube in the thin-walled pump shell workpiece.

10. A multi-functional testing device for a multi-stage centrifugal pump casing production line according to claim 9, characterized in that, It also includes a controller, which is connected to the flip-type clamping assembly, the internal support assembly, the roundness detection assembly, and the dynamic load simulation assembly, respectively.

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