A pump body assembly apparatus

Abstract

The present application belongs to the field of assembly automation, and discloses a pump body assembling equipment, which comprises a base frame, a grabbing moving assembly, a pressing assembly and a first driving electric cylinder. The base frame is provided with an assembling position, and a shaft impeller is preset in the assembling position. The grabbing moving assembly and the pressing assembly are movably arranged on the base frame. The grabbing moving assembly comprises a first shielding member and a pump shell gripper. The pump shell gripper grabs and moves the pump shell. The pressing assembly comprises a second shielding member and a stamping punch head. The output end of the first driving electric cylinder is located directly above the assembling position, and the output end is provided with a shielding sensor. When the first shielding member moves to the position directly below the shielding sensor, the shielding sensor is triggered, so that the first driving electric cylinder moves the pump shell to the upper surface of the shaft impeller in the assembling position. When the second shielding member moves to the position directly below the shielding sensor, the shielding sensor is triggered, so that the first driving electric cylinder drives the stamping punch head to press the shaft impeller into the interior of the pump shell.

Description

Technical Field

[0001] This invention belongs to the field of assembly automation and discloses a pump body assembly device. Background Technology

[0002] A pump is a widely used industrial product that typically consists of a shafted impeller and a pump casing. The impeller is driven to rotate by its shaft, thus producing a pumping action.

[0003] The assembly of the pump casing and the impeller with shaft is a key process in pump assembly, such as... Figure 1 As shown, this process specifically involves pressing the impeller with a shaft into the pump casing through a pre-set opening. When pressing the impeller into the pump casing, the impeller's pressing position relative to the pre-set opening must be precisely aligned to ensure reliable insertion. Furthermore, the fit between the impeller and its mating structure within the pump casing must meet predetermined requirements; that is, the impeller must achieve a predetermined degree of tightness within the pump casing. These two assembly requirements are difficult to reliably meet using existing automated pressing equipment. Therefore, to reliably complete the operation of pressing the impeller into the pump casing, manual operation is still necessary.

[0004] However, it is obvious that manual methods are costly and inefficient. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pump assembly device that can automatically press-fit shafted impellers into pump casings as part of an assembly line, thereby avoiding manual intervention, greatly improving assembly efficiency, and effectively reducing costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pump assembly device, located near a production line, is used to press-fit a predetermined impeller with a shaft into a pump casing from the production line, wherein the production line conveys the pump casing to the assembly position along the flow direction, and the horizontal direction perpendicular to the flow direction is used as the assembly movement direction. The device is characterized by comprising: a base frame having an assembly plane with an assembly position, the impeller with a shaft pre-positioned at the assembly position; a gripping and moving assembly movably mounted on the base frame along the assembly movement direction and positioned above the assembly plane; a pressing assembly movably mounted on the base frame and positioned above the assembly plane; and an assembly drive assembly, wherein the gripping and moving assembly includes a first blocking member and a pump casing gripper mechanically coupled vertically, the pump casing gripper gripping and moving the pump casing from the assembly position based on a predetermined flow signal; and the pressing assembly includes... The assembly drive assembly includes a first drive electric cylinder, with the second and second blocking components mechanically coupled vertically upwards and downwards. The output end of the first drive electric cylinder is located directly above the assembly position, with the output end vertically downwards and equipped with a blocking sensor. When the pump housing gripper holds the pump housing and the first blocking component moves directly below the blocking sensor, the blocking sensor is triggered. This causes the first drive electric cylinder to move the pump housing gripper, holding the pump housing, to the upper surface of the shafted impeller at the assembly position via the first blocking component. When the pump housing is positioned on the upper surface of the shafted impeller and the second blocking component moves directly below the blocking sensor, the blocking sensor is triggered. This causes the first drive electric cylinder to move the stamping impact head directly above the pump housing via the second blocking component, pressing the pump housing downwards and thus forcing the shafted impeller into the interior of the pump housing.

[0008] Preferably, the present invention further includes a control unit, comprising a data acquisition component, a processor, a memory, and a processing program stored in the memory and executable on the processor. The data acquisition component includes an obstruction sensor. The processing program includes a pump housing gripping program, a pump housing positioning program, and a stamping program. The pump housing gripping program drives the pump housing gripper to move from its initial position to the assembly positioning position according to a predetermined flow signal and grips the pump housing. The pump housing positioning program moves the pump housing gripper holding the pump housing away from the assembly positioning position and moves the pump housing to the upper surface of the shafted impeller according to the trigger signal of the obstruction sensor. The stamping program starts after the first extension time of the pump housing positioning program. The stamping program drives the stamping head to move from its initial position to directly above the pump housing and presses the pump housing downwards.

[0009] Furthermore, the surface of the pump casing has an identification code, the acquisition component also includes a scanning head, the memory also stores the externally input pump casing code, and the processing program also includes an identification and comparison program. When the pump casing grasping program ends, the scanning head corresponds to the identification code. The identification and comparison program starts after the second extended time after the start of the pump casing grasping program. The identification and comparison program compares the identification code identified by the scanning head with the pump casing code. If the comparison is successful, a predetermined transfer signal is generated, and the pump casing positioning program starts based on the predetermined transfer signal; if the comparison is unsuccessful, an alarm signal is generated.

[0010] Furthermore, the output end of the first drive electric cylinder has a sensing plate, which is a "U"-shaped bent plate bent in the horizontal direction. The blocking sensor is located inside the sensing plate. Both the first blocking member and the second blocking member have sensing flanges. When the sensing flange is inserted into the sensing plate, the first blocking member or the second blocking member is located directly below the blocking sensor. When the output end of the first drive electric cylinder moves downward, the sensing plate moves and pushes the sensing flange, thereby moving the first blocking member or the second blocking member.

[0011] Furthermore, the acquisition component also includes a pressure sensor, which is located inside the sensing plate. When the sensing plate pushes the sensing flange, the pressure sensor is compressed and acquires the real-time pressure value between the sensing plate and the sensing flange. The memory also stores the initial pressing pressure threshold, the highest threshold, and the lowest threshold. The processing program also includes an initial pressing judgment program, a first pressure judgment program, and a second pressure judgment program. When the stamping program is executed, the initial pressing judgment program compares the real-time pressure value with the initial pressing pressure threshold. If the real-time pressure value is greater than the initial pressing pressure threshold, a pressing start signal is generated. The first pressure judgment program starts the pressing process based on the pressing start signal. The first pressure judgment program compares the real-time pressure value with the maximum pressing pressure threshold. If the real-time pressure value is less than or equal to the maximum pressing pressure threshold, a continuous pressing signal is generated; if the real-time pressure value is greater than the maximum pressing pressure threshold, the pressing program is interrupted and an alarm signal is generated. The second pressure judgment program is started by the continuous pressing signal. When the first drive electric cylinder reaches its maximum stroke, the second pressure judgment program compares the real-time pressure value with the minimum pressing pressure threshold. If the real-time pressure value is greater than or equal to the minimum pressing pressure threshold, a pressing pass signal is generated; if the real-time pressure value is less than the minimum pressing pressure threshold, the pressing program is interrupted and an alarm signal is generated.

[0012] Furthermore, the processing procedure also includes a reset procedure, which is initiated based on the stamping pass signal. The reset procedure is used to move the pump housing gripper to the gripper initial position and to move the stamping impact head to the stamping head initial position.

[0013] Preferably, the base frame includes a fixed subframe, a first movable subframe, a second movable subframe, and a third movable subframe. The first movable subframe is movably mounted on the fixed subframe along the assembly movement direction. The second and third movable subframes are both movably mounted on the first movable subframe in the vertical direction. The gripping and moving component and the pressing component are respectively mounted on the second and third movable subframes. The gripping and moving component is closer to the assembly positioning position than the pressing component. The assembly drive component is mounted on the first movable subframe.

[0014] Furthermore, the first movable subframe and the fixed subframe are connected by a second drive electric cylinder. The first movable subframe also has a linear drive motor for vertical driving, and the second movable subframe is mounted on the slider of the linear drive motor.

[0015] Preferably, the present invention further includes a snap ring clamping unit, comprising a guide rail, a drive motor, a drive screw, a movable slider, and a snap ring receiving part. The guide rail is disposed on one side of the assembly plane and extends along the assembly movement direction. The drive screw is disposed on the output shaft of the drive motor and extends along the assembly movement direction. The movable slider is threadedly engaged with the drive screw. The snap ring receiving part is used to hold the snap ring and is integrally disposed on the movable slider, and the movable slider is movably disposed on the guide rail.

[0016] Preferably, the pump casing has two impeller inlet ports arranged opposite to each other. The pump casing is positioned on a preset positioning fixture and conveyed to the assembly position by the assembly line. The assembly position is also provided with a preset pressing fixture identical to the positioning fixture. When the pump casing is positioned on the positioning fixture or the pressing fixture, the center line connecting the two impeller inlet ports is arranged in the vertical direction. The shafted impeller is pressed into the pump casing through the impeller inlet port on the pressing fixture.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Because the pump assembly equipment of the present invention includes a base frame, a gripping and moving assembly, a pressing assembly, and an assembly drive assembly, the base frame has an assembly position, and a shafted impeller is preset in the assembly position; the gripping and moving assembly and the pressing assembly are movably mounted on the base frame, the gripping and moving assembly includes a first blocking member and a pump casing gripper, the pump casing gripper grips and moves the pump casing, the pressing assembly includes a second blocking member and a stamping impact head, and the assembly drive assembly includes a first drive electric cylinder, the output end of the first drive electric cylinder is located directly above the assembly position, and the output end is provided with a blocking sensor, when the first blocking member moves to directly below the blocking sensor, the blocking sensor... The sensor triggers, causing the first drive cylinder to move the pump housing to the upper surface of the shafted impeller at the assembly position. When the second blocking member moves directly below the blocking sensor, the blocking sensor is triggered, causing the first drive cylinder to press the shafted impeller into the pump housing by causing the stamping head. Since the positions of the first drive cylinder and the assembly position remain unchanged, the absolute and relative positions of the pump housing with respect to the shafted impeller at the assembly position also remain unchanged. Therefore, this invention can automatically press the shafted impeller into the pump housing as part of an assembly line, thereby avoiding manual intervention, greatly improving assembly efficiency, and effectively reducing costs.

[0019] 2. Because the surface of the pump casing of the present invention has an identification code, the acquisition component also includes a scanning head, the memory also stores the externally input pump casing code, and the processing program also includes an identification and comparison program. The scanning head corresponds to the identification code, and the identification and comparison program compares the identification code identified by the scanning head with the pump casing code. If the comparison fails, an alarm signal is generated. That is, if due to unexpected factors, the pump casing flowing on the production line is not the pump casing to be assembled as intended, or the production line does not flow into the pump casing, an alarm can be triggered in time. Therefore, the present invention can issue an early warning signal in a timely manner to remind relevant personnel to take appropriate measures to deal with the unexpected situation.

[0020] 3. Because the acquisition component of this invention also includes a pressure sensor, which is disposed inside the sensing plate, when the sensing plate pushes the sensing flange, the pressure sensor is pressed and acquires the real-time pressure value between the sensing plate and the sensing flange. The memory also stores the initial pressing pressure threshold, the highest threshold, and the lowest threshold. The processing program also includes an initial pressing judgment program, a first pressure judgment program, and a second pressure judgment program. When the stamping program is executed, the initial pressing judgment program is used to compare the real-time pressure value with the initial pressing pressure threshold. If the real-time pressure value is greater than the initial pressing pressure threshold, a pressing start signal is generated. The first pressure judgment program is started by the pressing start signal. The first pressure judgment program compares the real-time pressure value with the highest pressing pressure threshold. If the real-time pressure value is less than or equal to the highest pressing pressure threshold, a continuous pressing start signal is generated. The stamping signal; if the real-time pressure value is greater than the maximum pressing pressure threshold, the stamping program is interrupted and an alarm signal is generated; the second pressure judgment program is started by the continuous stamping signal. When the first drive cylinder reaches its maximum stroke, the second pressure judgment program compares the real-time pressure value with the minimum pressing pressure threshold. If the real-time pressure value is greater than or equal to the minimum pressing pressure threshold, a stamping qualified signal is generated; if the real-time pressure value is less than the minimum pressing pressure threshold, the stamping program is interrupted and an alarm signal is generated. That is, if the pulley cannot cooperate with the pump housing due to unexpected reasons, the present invention can stop the program execution and issue an alarm in time; or if, due to unexpected reasons, although they can cooperate, the clearance is too large and the impeller cannot be reliably locked in the pump housing, the present invention can also stop the program and issue an alarm in time. Therefore, the present invention can reliably ensure the effective cooperation between the impeller and the pump housing. Attached Figure Description

[0021] Figure 1 Exploded view of the pump casing and impeller with shaft;

[0022] Figure 2 This is a schematic diagram of a positioning fixture according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a pump assembly device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of a portion of the fixing subframe according to an embodiment of the present invention;

[0025] Figure 5 A partial explosion of the pump assembly equipment according to an embodiment of the present invention. Figure 1 ;

[0026] Figure 6 A partial explosion of the pump assembly equipment according to an embodiment of the present invention. Figure 2 ;

[0027] Figure 7This is a schematic diagram of a stamping ram head according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the assembly driving component according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the snap ring clamping unit according to an embodiment of the present invention.

[0030] In the diagram: 100, pump assembly equipment; A, assembly line; F1, positioning fixture; F11, base plate; F12, impeller positioning column; D1, water conveying direction; D2, assembly movement direction; S, pump casing; 10, base frame; 11, fixed sub-frame; 111, assembly plane; F2, press-fit fixture; 112, second drive electric cylinder; 12, first moving sub-frame; 13, second moving sub-frame; 14, third moving sub-frame; 21, first shielding component; 211, sensing flange; 212, mounting flange; 22. Pump casing gripper, 23, first fixed plate, 31, second shielding component, 32, stamping impact head, 321, shaft avoidance blind hole, 33, second fixed plate, 40, assembly drive assembly, 41, electric cylinder support frame, 42, first drive electric cylinder, 421, sensing plate, 50, snap ring clamping unit, 51, guide rail, 51a, motor fixing frame, 52, drive motor, 53, coupling, 54, drive screw, 55, moving slider, 56, snap ring clamping actuator, 561, snap ring receiving part, 61, scanning head. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments, in conjunction with the accompanying drawings, specifically illustrate the pump assembly equipment of the present invention. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0032] like Figure 2 and Figure 3 As shown, the pump assembly equipment 100 in this embodiment is located near the production line A and is used to transport the predetermined impeller housing S with shaft (not shown in the figure) into the production line A along the water flow conveying direction D1 to the assembly position (not shown in the figure). The horizontal direction perpendicular to the water flow conveying direction D1 is used as the assembly movement direction D2.

[0033] The surface of the pump casing S has an identification code for identifying product information (not shown in the figure). The pump casing S is positioned on a preset positioning fixture F1 and is conveyed to the assembly position by the production line A. The pump casing S has two impeller inlets (not shown in the figure) arranged opposite each other. When the pump casing S is set on the positioning fixture F1, the center line connecting the two impeller inlets is arranged in the vertical direction.

[0034] Specifically, the positioning fixture F1 has a base plate F11 and an impeller positioning post F12 vertically formed on the base plate F11. The impeller positioning post F12 has a cylindrical blind hole (not shown in the figure). When the pump casing S is set on the positioning fixture, the impeller positioning post F12 is inserted into one of the impeller inlet parts of the pump casing S. At this time, the center line connecting the two impeller inlet parts is set in the vertical direction.

[0035] The pump assembly equipment 100 includes a base frame 10, a gripping and moving assembly, a pressing assembly, an assembly drive assembly 40, a snap ring clamping unit 50, and a control unit (not shown in the attached drawings).

[0036] The base frame 10 includes a fixed sub-frame 11, a first movable sub-frame 12, a second movable sub-frame 13, and a third movable sub-frame 14.

[0037] like Figures 4 to 6 As shown, the fixed subframe 11 has a horizontal assembly plane 111 with an assembly position (not shown in the figure). The shafted impeller is preset in the assembly position, and the assembly position is also provided with a preset pressing fixture F2 that is the same as the positioning fixture F1. When the pump casing S is set on the pressing fixture F2, the center line connecting the two impeller inlets is set in the vertical direction. The shafted impeller is pressed into the pump casing S through the impeller inlet on the pressing fixture F2. Specifically, the shafted impeller is inserted into the cylindrical blind hole by the operator through the pressing fixture F2 preset in the assembly position.

[0038] The first movable subframe 12 is movably mounted on the fixed subframe 11 along the assembly movement direction D2. Specifically, the first movable subframe 12 and the fixed subframe 11 are connected by a second drive cylinder 112. The second drive cylinder 112 is mounted on the fixed subframe 11, and the first movable subframe 12 is mounted on the output end of the second drive cylinder 112. In this embodiment, the first movable subframe 12 cooperates with the guide rail of the fixed subframe 11, and the first movable subframe 12 is perpendicular to the assembly plane 111 and located near the assembly plane 111.

[0039] The second movable subframe 13 and the third movable subframe 14 are both movably mounted on the first movable subframe 12 in the vertical direction. Specifically, the first movable subframe 12 also has two linear drive motors (not shown in the figure) that drive in the vertical direction. The second movable subframe 13 and the third movable subframe 14 are respectively mounted on the sliders of the two linear drive motors.

[0040] The gripping and moving component and the pressing component are respectively mounted on the second moving sub-frame 13 and the third moving sub-frame 14. The gripping and moving component is closer to the assembly position than the pressing component. Both the gripping and moving component and the pressing component are mounted on the base frame through the first moving sub-frame 12 and are located above the assembly plane 111. Both the gripping and moving component and the pressing component are movably mounted along the assembly moving direction.

[0041] The grasping moving component includes a first shield 21 and a pump housing gripper 22.

[0042] The first shielding member 21 and the pump housing gripper 22 are mechanically coupled vertically. The pump housing gripper 22 grabs the pump housing S and moves it based on the predetermined flow signal generated by the production line A at the self-assembly positioning position. In this embodiment, the gripping and moving component also includes a first fixing plate 23 parallel to the assembly plane 111. The first shielding member 21 is disposed on the upper end surface of the first fixing plate 23, and the pump housing gripper 22 is disposed on the lower end surface of the first fixing plate 23.

[0043] The first shielding member 21 has a sensing flange 211 and a mounting flange 212 formed at its upper and lower ends, respectively.

[0044] The press-fit assembly includes a second shield 31 and a stamping head 32.

[0045] The second shielding member 31 and the stamping head 32 are mechanically coupled vertically. In this embodiment, the press assembly also includes a second fixing plate 33 parallel to the assembly plane 111. The second shielding member 31 is disposed on the upper end surface of the second fixing plate 33, and the stamping head 32 is disposed on the lower end surface of the second fixing plate 33.

[0046] The second shielding member 31 is the same as the first shielding member 21.

[0047] Specifically, such as Figure 7 As shown, the stamping head 32 is a vertical cylinder, and its lower end face has a vertically extending shaft-avoiding blind hole 321.

[0048] Assemble the drive assembly 40 on the first movable sub-frame 12, such as Figure 8 As shown, the assembly drive assembly 40 includes a first drive electric cylinder 42. In this embodiment, the assembly drive assembly 40 also includes an electric cylinder support frame 41. The first drive electric cylinder 42 is mounted on the first movable subframe 12 via the electric cylinder support frame 41.

[0049] The output end of the first drive electric cylinder 42 is located directly above the assembly position and is vertically downward. The first shielding member 21 and the second shielding member 31 are both located below the first drive electric cylinder 42.

[0050] The output end of the first drive electric cylinder 42 has a sensing plate 421, which is a "U"-shaped bent plate bent in the horizontal direction. Specifically, the bending of the sensing plate 421 is a 180° bend, that is, the two plate segments formed by the bend are both horizontal.

[0051] When the output end of the first drive cylinder 42 moves downward, the sensing plate 421 moves downward and pushes the sensing flange, thereby moving the first blocking member 21 or the second blocking member 31, which in turn drives the pump housing gripper 22 or the stamping head 32 to move vertically downward.

[0052] like Figure 9 As shown, the snap ring clamping unit 50 includes a guide rail 51, a drive motor 52, a drive screw 54, a moving slider 55, and a snap ring receiving part 561.

[0053] The guide rail 51 is located on one side of the assembly plane 111 away from the production line A. The guide rail 51 extends along the assembly movement direction D2. Specifically, the guide rail 51 is set on the assembly plane 111 by a fixing plate (not shown in the figure). The fixing plate also has a vertical motor mounting bracket 51a.

[0054] The drive screw 54 is mounted on the output shaft of the drive motor 52 and extends along the assembly movement direction D2. Specifically, the drive motor 52 is mounted on the motor mounting bracket 51a, and the output shaft of the drive motor 52 and the drive screw 54 are connected by a coupling 53.

[0055] The movable slider 55 is threadedly engaged with the drive screw 54 and the guide rail 51, so that after the drive motor 52 is started, the drive screw 54 rotates, and the movable slider 55 moves on the guide rail 51.

[0056] The snap ring receiving part 561 is used to hold the snap ring (not shown in the attached drawings). The snap ring receiving part 561 is integrally set on the movable slider 55. Specifically, the movable slider 55 is provided with a snap ring clamping actuator 56. The snap ring receiving part 561 is a part of the snap ring clamping actuator 56. When the operator places the snap ring horizontally on the snap ring receiving part 561, and the movable slider 55 drives the snap ring receiving part 561 to move towards the assembly position, the snap ring of the snap ring receiving part 561 is clamped into the shaft of the impeller with shaft located at the assembly position, thus completing the engagement between the snap ring and the shaft.

[0057] The control unit includes acquisition components, a processor, a memory, and a processing program stored in the memory and capable of running on the processor.

[0058] The acquisition components include a scanning head 61, an occlusion sensor (not shown in the figure), and a pressure sensor (not shown in the figure).

[0059] Specifically, the scanning head 61 is mounted on the fixed sub-frame 11 and located on one side of the fixed sub-frame 11 near the production line AD, while the occlusion sensor is located inside the sensing plate 421.

[0060] When the sensing flange 211 of the first blocking member 21 or the second blocking member 31 is inserted into the sensing plate 421, the first blocking member 21 or the second blocking member 31 is located directly below the blocking sensor.

[0061] When the pump housing gripper 22 grips the pump housing S and the first blocking member 21 moves directly below the blocking sensor, the blocking sensor is triggered. As a result, the first drive cylinder 42 pushes the first blocking member 21 through the sensing plate 421, causing the pump housing gripper 22 to grip the pump housing S and move it to the assembly position. The pump housing S is then released to the upper surface of the shafted impeller. At this time, the edge of the impeller inlet at the bottom of the pump housing S contacts the circumferential edge of the shafted impeller, and the shaft of the shafted impeller passes through the pump housing S through a pair of impeller inlets.

[0062] When the pump casing S is positioned on the upper surface of the impeller with shaft, and the second blocking member 31 moves directly below the blocking sensor, the blocking sensor is triggered. As a result, the first drive electric cylinder 42 pushes the second blocking member 31 to move the stamping head 32 directly above the pump casing S, causing the pump casing S to press down. Consequently, the impeller with shaft is pressed into the interior of the pump casing S. That is, the pump casing S moves downward relative to the impeller with shaft, and the impeller with shaft is pressed into the pump casing S. The shaft of the impeller with shaft moves within the shaft-avoiding blind hole 321, so that the stamping head 32 does not interfere with the shaft of the impeller with shaft during the pressing process.

[0063] The pressure sensor is located inside the sensing plate 421. When the sensing plate 421 pushes the sensing flange 211, the pressure sensor is located between the inner wall of the sensing plate 421 and the sensing flange 211. That is, the pressure sensor is pressed and collects the real-time pressure value between the sensing plate 421 and the sensing flange 211.

[0064] The memory also stores externally input pump housing codes, initial press pressure thresholds, maximum thresholds, and minimum thresholds.

[0065] The processing procedure includes a pump casing grabbing procedure, an identification and comparison procedure, a pump casing positioning procedure, a stamping procedure, an initial press fitting judgment procedure, a first pressure judgment procedure, and a second pressure judgment procedure.

[0066] The pump casing gripping program drives the pump casing gripper 22 to move from the initial gripper position to the assembly position according to the predetermined water flow signal and grips the pump casing S. Specifically, when the pump body assembly equipment 100 is not activated, the pump casing gripper 22 and the stamping impact head 32 are respectively located at the initial gripper position and the initial impact head position, which are symmetrically located on both sides of the assembly position.

[0067] When the pump casing gripping program ends, the scanning head 61 corresponds at the same height to the identification code of the pump casing S. The identification and comparison program starts after the second extended time of the pump casing gripping program. The identification and comparison program compares the identification code identified by the scanning head 61 with the pump casing code. If the comparison is successful, a predetermined transfer signal is generated. The pump casing positioning program starts based on the predetermined transfer signal. If the comparison is unsuccessful, an alarm signal is generated, that is, the pump casing positioning program does not start.

[0068] The pump casing positioning procedure is used to move the pump casing gripper 22 holding the pump casing S away from the assembly positioning position, and according to the trigger signal of the obstruction sensor, move the pump casing S and release it onto the upper surface of the shaft impeller.

[0069] The stamping process starts after the first extended time of the pump housing positioning process. The stamping process drives the stamping head 32 to move from the initial position of the stamping head to directly above the pump housing S and presses the pump housing S downward.

[0070] When the stamping program is executed, the initial press-fitting judgment program is used to compare the real-time pressure value with the initial press-fitting pressure threshold. If the real-time pressure value is greater than the initial press-fitting pressure threshold, a press-fitting start signal is generated, indicating that the stamping impact head 32 is in contact with the pump housing S at this time.

[0071] The first pressure judgment program is started by the press-fit initiation signal. Without the press-fit initiation signal, the first pressure judgment program will not start. The first pressure judgment program compares the real-time pressure value with the maximum press-fit pressure threshold. If the real-time pressure value is less than or equal to the maximum press-fit pressure threshold, a continuous press signal is generated, indicating that the fit tolerance between the impeller with shaft and the pump casing S meets the requirements and press-fit has begun. If the real-time pressure value is greater than the maximum press-fit pressure threshold, the press-fit program is interrupted and an alarm signal is generated, indicating that the fit tolerance between the impeller with shaft and the pump casing S does not meet the requirements, that is, the outer circumferential profile of the impeller with shaft is too large or the corresponding fit dimension of the pump casing S is too small.

[0072] The second pressure judgment program is started by a continuous pressing signal. When the first drive electric cylinder reaches its maximum stroke, the second pressure judgment program compares the real-time pressure value with the minimum pressing pressure threshold. If the real-time pressure value is greater than or equal to the minimum pressing pressure threshold, a pressing qualified signal is generated, indicating that at the end of pressing, the fit tolerance between the impeller with shaft pressed into the pump housing S and the pump housing S meets the requirements, that is, the pump has been successfully assembled. If the real-time pressure value is less than the minimum pressing pressure threshold, the pressing program is interrupted and an alarm signal is generated, indicating that at the end of pressing, the fit tolerance between the impeller with shaft pressed into the pump housing S and the pump housing S does not meet the requirements, that is, the outer circumferential profile of the impeller with shaft is too small or the corresponding fit dimension of the pump housing S is too large.

[0073] The reset procedure is initiated based on the stamping pass signal. The reset procedure is used to move the pump housing gripper 22 to the gripper initial position and to move the stamping head 32 to the stamping head initial position. In this embodiment, the positional relationship between the pump housing gripper 22 and the stamping head 32 remains fixed. When the pump housing gripper 22 is moved to the gripper initial position, the stamping head 32 is also moved to the head initial position.

[0074] In this embodiment, if the identification and comparison program fails to match, the reset program will also be started.

[0075] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications or variations that can be made by those skilled in the art without creative effort within the scope of the appended claims are still within the scope of protection of this patent.

Claims

1. A pump assembly device, located near a production line, for press-fitting a predetermined shafted impeller into a pump casing from the production line, wherein the production line conveys the pump casing to an assembly position along the water flow direction, and the horizontal direction perpendicular to the water flow direction is used as the assembly movement direction, characterized in that... include: The base frame has an assembly plane with an assembly position, on which the shafted impeller is pre-installed; A grasping and moving component is movably disposed on the base frame along the assembly movement direction, and the grasping and moving component is located above the assembly plane; A press-fit assembly is movably mounted on the base frame, and the press-fit assembly is located above the assembly plane; Assemble the drive components. The grasping and moving assembly includes a first blocking member and a pump housing gripper mechanically coupled vertically. The pump housing gripper grasps and moves the pump housing from the assembly position based on a predetermined flow signal. The pressing assembly includes a second blocking member and a stamping impact head mechanically coupled vertically. The assembly drive component includes a first drive electric cylinder. Both the first and second blocking components are located below the first drive electric cylinder. The output end of the first drive electric cylinder is located directly above the assembly position, the output end is vertically downward, and the output end is equipped with an obstruction sensor. When the pump housing gripper holds the pump housing and the first shielding member moves to directly below the shielding sensor, the shielding sensor is triggered, thereby the first drive electric cylinder drives the pump housing gripper to hold the pump housing and move it to the upper surface of the shafted impeller at the assembly position through the first shielding member. When the pump casing is positioned on the upper surface of the shafted impeller and the second blocking member moves directly below the blocking sensor, the blocking sensor is triggered. Consequently, the first drive electric cylinder drives the stamping head to directly above the pump casing via the second blocking member, pressing the pump casing downwards, and thus the shafted impeller is pressed into the interior of the pump casing.

2. The pump assembly equipment according to claim 1, characterized in that, Also includes: The control unit includes a data acquisition component, a processor, a memory, and a processing program stored in the memory and executable on the processor. The acquisition component includes the occlusion sensor. The processing procedure includes a pump housing gripping procedure, a pump housing positioning procedure, and a stamping procedure. The pump casing gripping program drives the pump casing gripper to move from its initial position to the assembly positioning position according to the predetermined water flow signal and then grips the pump casing. The pump casing positioning procedure is used to move the pump casing gripper holding the pump casing away from the assembly positioning position, and, based on the trigger signal of the obstruction sensor, move the pump casing to the upper surface of the shafted impeller. The stamping process starts after the first extended time of the pump housing positioning process. The stamping process drives the stamping head to move from its initial position to directly above the pump housing and presses it down onto the pump housing.

3. The pump assembly equipment according to claim 2, characterized in that: in, The surface of the pump casing has an identification code, the acquisition component also includes a scanning head, the memory also stores externally input pump casing codes, and the processing program also includes an identification and comparison program. When the pump casing grabbing process ends, the scanning head corresponds to the identification code. The identification and comparison program starts after the second extended time following the initiation of the pump casing grasping program. The program compares the identifier code identified by the scanning head with the pump casing code. If the comparison is successful, a predetermined transfer signal is generated, and the pump casing positioning procedure is started based on the predetermined transfer signal; if the comparison is unsuccessful, an alarm signal is generated.

4. The pump assembly equipment according to claim 2, characterized in that: in, The output end of the first drive electric cylinder has a sensing plate, which is a "U"-shaped bent plate in the horizontal direction. The obstruction sensor is located inside the sensing plate. Both the first and second blocking members have sensing flanges. When the sensing flanges are inserted into the sensing plate, the first or second blocking member is located directly below the blocking sensor. When the output end of the first drive cylinder moves downward, the sensing plate moves and pushes the sensing flange, thereby moving the first blocking member or the second blocking member.

5. The pump body assembly equipment according to claim 4, Its features are: The acquisition component further includes a pressure sensor disposed inside the sensing plate. When the sensing plate pushes the sensing flange, the pressure sensor is compressed and acquires the real-time pressure value between the sensing plate and the sensing flange. The memory also stores the initial pressing pressure threshold, the maximum threshold, and the minimum threshold. The processing program further includes an initial pressing judgment program, a first pressure judgment program, and a second pressure judgment program. When the stamping program is executed, the initial press-fitting judgment program is used to compare the real-time pressure value with the initial press-fitting pressure threshold. If the real-time pressure value is greater than the initial press-fitting pressure threshold, a press-fitting start signal is generated. The first pressure judgment program is started by the press-fit start signal. The first pressure judgment program compares the real-time pressure value with the maximum press-fit pressure threshold. If the real-time pressure value is less than or equal to the maximum press-fit pressure threshold, a continuous pressing signal is generated. If the real-time pressure value is greater than the maximum press-fit pressure threshold, the pressing program is interrupted and an alarm signal is generated. The second pressure judgment program is started by the continuous stamping signal. When the first drive electric cylinder reaches its maximum stroke, the second pressure judgment program compares the real-time pressure value with the minimum pressing pressure threshold. If the real-time pressure value is greater than or equal to the minimum pressing pressure threshold, a stamping qualified signal is generated. If the real-time pressure value is less than the minimum pressing pressure threshold, the stamping program is interrupted and an alarm signal is generated.

6. The pump assembly equipment according to claim 5, characterized in that: in, The processing procedure also includes a reset procedure, which is initiated based on the stamping pass signal. The reset procedure is used to move the pump housing gripper to the gripper initial position and to move the stamping impact head to the stamping head initial position.

7. The pump assembly equipment according to claim 1, characterized in that: in, The base frame includes a fixed subframe, a first movable subframe, a second movable subframe, and a third movable subframe. The first movable sub-frame is movably mounted on the fixed sub-frame along the assembly movement direction. The second and third movable sub-frames are both movably mounted on the first movable sub-frame in the vertical direction. The gripping moving component and the pressing component are respectively mounted on the second and third movable sub-frames. The gripping moving component is closer to the assembly positioning position than the pressing component. The assembly driving component is mounted on the first movable sub-frame.

8. The pump assembly equipment according to claim 7, characterized in that: in, The first movable subframe and the fixed subframe are connected by a second drive cylinder. The first movable subframe also has a linear drive motor for vertical driving, and the second movable subframe is mounted on the slider of the linear drive motor.

9. The pump body assembly equipment according to claim 1, characterized in that, Also includes: The snap ring clamping unit includes a guide rail, a drive motor, a drive screw, a moving slider, and a snap ring receiving part. The guide rail is disposed on one side of the assembly plane and extends along the assembly movement direction. The drive screw is disposed on the output shaft of the drive motor and extends along the assembly movement direction. The movable slider is threadedly engaged with the drive screw. The snap ring receiving part is used to place the snap ring. The snap ring receiving part is integrally disposed on the movable slider, and the movable slider is movably disposed on the guide rail.

10. The pump body assembly equipment according to claim 1, characterized in that: in, The pump casing has two impeller inlets arranged opposite each other. The pump casing is positioned on a preset positioning fixture and conveyed by an assembly line to the assembly position. The assembly position is also provided with a preset pressing fixture identical to the positioning fixture. When the pump casing is mounted on the positioning fixture or the pressing fixture, the center line connecting the two impeller inlets is arranged in the vertical direction, and the shafted impeller is pressed into the pump casing through the impeller inlet on the pressing fixture.

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