Water pump impeller tightening device

Abstract

The utility model discloses a water pump impeller tightening device, and relates to the technical field of water pump production equipment. The water pump impeller tightening device comprises a fixing plate, a lifting frame, a tightening assembly, a positioning assembly, a first power piece, a rotation driving assembly, a torque detection element and a control system. The lifting frame is slidably arranged on the fixed plate; the tightening assembly is rotationally arranged on the lifting frame; the positioning assembly is arranged below the tightening assembly and used for fixing the water pump. The first power piece is arranged on the fixing plate and is in driving connection with the lifting frame, so that the lifting frame drives the tightening assembly to approach the positioning assembly to connect the impeller; the rotary driving assembly is arranged on the lifting frame and is in driving connection with the tightening assembly, so that the tightening assembly drives the impeller to rotate relative to the water pump; the torque detection element is arranged on the rotation driving assembly and used for detecting the rotation torque of the rotation driving assembly. The control system is electrically connected with the torque detection element and the rotation driving assembly. According to the technical scheme provided by the utility model, the assembly efficiency of the impeller is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump production equipment technical field especially relates to a water pump impeller tightening device. BACKGROUND

[0002] The electronic water pump can accurately control the transmission of liquid, and is used for circulating cooling of driving motor, electric component, power battery and the like in new energy automobile, and ensures the normal operation of motor and battery after rapid cooling of vehicle high-speed running. At present, after the assembly of the main part of the electronic water pump is completed, the impeller needs to be installed through the threaded connection mode, and the impeller is locked according to the specified torque.

[0003] The existing electronic water pump generally installs the impeller through the artificial assembly mode, that is, after the impeller is installed manually, the assembly is completed through the use of a torque wrench auxiliary tool, which is time-consuming and laborious, and further leads to the lengthening of process rhythm and the influence on assembly efficiency. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a water pump impeller tightening device, which aims to improve the assembly efficiency of the impeller.

[0005] To achieve the above purpose, the water pump impeller tightening device provided by the utility model comprises:

[0006] A fixed plate;

[0007] A lifting frame slidingly arranged on the fixed plate;

[0008] A tightening assembly rotatably arranged on the lifting frame;

[0009] A positioning assembly arranged below the tightening assembly, the positioning assembly being used for fixing the water pump;

[0010] A first power member arranged on the fixed plate and drivingly connected with the lifting frame, so that the lifting frame drives the tightening assembly to approach the positioning assembly to connect the impeller;

[0011] A rotary driving assembly arranged on the lifting frame and drivingly connected with the tightening assembly, so that the tightening assembly drives the impeller to rotate relative to the water pump;

[0012] A torque detection element arranged on the rotary driving assembly and used for detecting the rotary torque of the rotary driving assembly; and

[0013] A control system electrically connected with the torque detection element and the rotary driving assembly.

[0014] In an embodiment, the tightening assembly comprises:

[0015] A positioning shaft arranged on the lifting frame;

[0016] A rotating sleeve is sleeved on the outer periphery of the positioning shaft, and the rotating driving assembly is drivingly connected with the rotating sleeve.

[0017] A profiled workpiece is arranged on the side of the rotating sleeve close to the positioning assembly, and the profiled workpiece is used to tightly contact the impeller so that the impeller rotates synchronously with the profiled workpiece.

[0018] In an embodiment, the tightening assembly further comprises:

[0019] A positioning pin is arranged in the receiving groove in the positioning shaft, one end of the positioning pin is movably arranged in the receiving groove, and the other end of the positioning pin is connected with the rotor shaft of the water pump.

[0020] A first elastic member is arranged in the receiving groove and connects the positioning pin and the groove wall of the receiving groove.

[0021] In an embodiment, the groove wall of the receiving groove is provided with a first plane, the positioning pin is provided with a second plane, the first plane and the second plane abut each other, and the second plane can slide along the first plane.

[0022] In an embodiment, the tightening assembly further comprises:

[0023] A fixing block is sleeved on the outer periphery of the rotating sleeve.

[0024] A bearing is arranged between the fixing block and the rotating sleeve.

[0025] A connecting member connects the fixing block and the lifting frame.

[0026] In an embodiment, the rotating driving assembly comprises:

[0027] A support is arranged on the lifting frame.

[0028] A second power member is arranged at one end of the support.

[0029] A speed reducer is arranged on the support, the second power member is drivingly connected with the speed reducer, and an output shaft of the speed reducer is drivingly connected with the rotating sleeve.

[0030] In an embodiment, the rotating driving assembly further comprises:

[0031] A transmission rotating shaft is rotatably arranged in the lifting frame, one end of the transmission rotating shaft is drivingly connected with the output shaft of the speed reducer.

[0032] A driving wheel is arranged at the other end of the transmission rotating shaft.

[0033] A driven wheel is sleeved on the outer periphery of the rotating shaft sleeve, and the driven wheel is drivingly connected with the driving wheel through a synchronous belt.

[0034] In an embodiment, the torque detection element is configured as a torque sensor, and a measurement rotating shaft of the torque sensor is connected with the output shaft of the speed reducer and the transmission rotating shaft.

[0035] In an embodiment, the positioning assembly comprises:

[0036] a base; and,

[0037] A limiting table is detachably arranged on the base, and the limiting table is provided with a limiting groove for fixing the water pump.

[0038] In an embodiment, the base is provided with a rotating buckle, and the limiting table is provided with a buckle hole, and the base and the limiting table are detachably connected through the rotating buckle and the buckle hole.

[0039] The technical scheme of the utility model provides a fixing plate, a lifting frame, a tightening assembly, a positioning assembly, a first power element, a rotary driving assembly, a torque detection element and a control system are arranged in the water pump impeller tightening device. The lifting frame is slidingly arranged on the fixing plate; the tightening assembly is rotatably arranged on the lifting frame; the positioning assembly is arranged below the tightening assembly and is used for fixing the water pump; the first power element is arranged on the fixing plate and is drivingly connected with the lifting frame, so that the lifting frame drives the tightening assembly to approach the positioning assembly to connect the impeller; the rotary driving assembly is arranged on the lifting frame and is drivingly connected with the tightening assembly, so that the tightening assembly drives the impeller to rotate relative to the water pump; the torque detection element is arranged on the rotary driving assembly and is used for detecting the rotating torque of the rotary driving assembly; and the control system is electrically connected with the torque detection element and the rotary driving assembly. Compared with the manual assembly mode of the water pump impeller in the prior art, the first power element drives the lifting frame to drive the tightening assembly to connect the impeller, the rotary driving assembly drives the tightening assembly to drive the impeller to rotate relative to the water pump to assemble the impeller on the water pump, and the torque detection element can ensure that the impeller is tightened on the water pump, so that the automation of the water pump impeller assembly is realized, and the assembly efficiency of the water pump impeller is improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0041] Figure 1 It is an embodiment of the structure schematic view of the water pump impeller tightening device provided by the utility model.

[0042] Figure 2 For Figure 1 Structure diagram of an embodiment of the water pump and the positioning device;

[0043] Figure 3 For Figure 1 Structure diagram of an embodiment of the tightening assembly and the rotary driving assembly;

[0044] Figure 4 For Figure 3 Sectional view of an embodiment of the water pump;

[0045] Figure 5 For Figure 1 Structure diagram of an embodiment of the fixing plate and the lifting frame.

[0046] BRIEF DESCRIPTION OF THE DRAWINGS

[0047] 100, fixing plate; 110, first power piece; 111, joint; 120, limiting piece;

[0048] 200, lifting frame; 210, moving plate; 211, second elastic piece; 220, mounting plate;

[0049] 300, tightening assembly; 310, positioning shaft; 320, rotating shaft sleeve; 330, profiled workpiece; 340, positioning pin; 341, second plane; 350, first elastic piece; 360, fixed block; 370, bearing; 380, connecting piece;

[0050] 400, rotary driving assembly; 410, support; 420, second power piece; 430, speed reducer; 440, transmission rotating shaft; 450, torque detection element; 460, shaft coupling; 470, driving wheel; 480, driven wheel;

[0051] 500, positioning assembly; 510, base; 511, rotating buckle; 520, limiting table; 521, limiting groove;

[0052] 600, water pump; 610, impeller; 620, rotor shaft.

[0053] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0055] It should be noted that if the embodiments of the present utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0056] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0057] The electronic water pump can accurately control the transmission of liquid. In a new energy vehicle, the electronic water pump is used to drive the circulation cooling of a motor, an electric component, a power battery and the like, to rapidly cool down after high-speed driving of the vehicle, and to ensure normal operation of the motor and the battery. At present, after the assembly of the main body part of the electronic water pump is completed, the impeller needs to be installed through a threaded connection mode, and the impeller is locked according to a specified torque.

[0058] The existing electronic water pump generally installs the impeller through an artificial assembly mode, that is, after the impeller is manually installed by artificial, the assembly is completed by using a torque wrench auxiliary tool, which is time-consuming and laborious, and further leads to a long process beat, thereby affecting the assembly efficiency.

[0059] The utility model provides a water pump impeller tightening device to improve the assembly efficiency of the impeller.

[0060] Please refer to Figure 1 and Figure 2In an embodiment, the water pump impeller tightening device comprises a fixing plate 100, a lifting frame 200, a tightening assembly 300, a positioning assembly 500, a first power member 110, a rotary driving assembly 400, a torque detection element 450 and a control system.

[0061] The fixing plate 100 is installed on a mounting base to provide positioning and support for the whole water pump impeller tightening device. In an embodiment, the fixing plate 100 is provided with mounting holes to facilitate connection with the mounting base. Of course, in other embodiments, the fixing plate 100 can also be connected with the mounting base by means of bonding, clamping or welding, etc., and here, no limitation is made to the connection manner. The material of the fixing plate 100 can be carbon fiber reinforced plastic, alloy material or carbon fiber composite material, etc. with high strength to ensure the service life, and here, no specific material of the fixing plate 100 is limited.

[0062] The lifting frame 200 is slidingly arranged on the fixing plate 100. Please refer to Figure 5 In an embodiment, the lifting frame 200 comprises a moving plate 210 and a mounting plate 220 connected with each other, and the fixing plate 100 is provided with a guide rail extending in the vertical direction, and the moving plate 210 is slidingly arranged on the guide rail. In an embodiment, the moving plate 210 and the mounting plate 220 are connected by a connecting bracket. Of course, in other embodiments, the moving plate 210 and the mounting plate 220 can also be connected by welding or riveting, or the moving plate 210 and the mounting plate 220 are integrally formed, and here, no limitation is made. Further, in an embodiment, the fixing plate 100 is provided with a limiting member 120 located at one end of the guide rail, and the limiting member 120 can abut against the moving plate 210 to limit the sliding stroke of the moving plate 210. The limiting member 120 can be configured as a limiting bolt or a limiting block, etc., and here, no specific limitation is made.

[0063] The tightening assembly 300 is rotatably arranged on the lifting frame 200 and used to be connected with the impeller 610. The positioning assembly 500 is arranged below the tightening assembly 300 and used to fix the water pump 600. In an embodiment, the impeller 610 is placed in the mounting position of the water pump 600, and the impeller 610 and the rotor shaft 620 are both provided with threads, and the water pump 600 is integrally limited by the positioning assembly 500. In an embodiment, the mounting plate 220 is arranged on the side of the moving plate 210 close to the positioning assembly 500, and the tightening assembly 300 is rotatably arranged on the side of the mounting plate 220 facing the positioning assembly 500 to facilitate connection with the impeller 610.

[0064] The first power member 110 is arranged on the fixed plate 100 and is drivingly connected with the lifting frame 200, so that the lifting frame 200 drives the tightening assembly 300 to approach the positioning assembly 500 to connect the impeller 610. In an embodiment, the main body of the first power member 110 is fixed on one side of the fixed plate 100, and the output shaft of the first power member 110 is connected with the moving plate 210 to drive the moving plate 210 to slide along the guide rail relative to the fixed plate 100. Further, in an embodiment, the moving plate 210 is provided with a connecting screw and a second elastic member 211, the connecting screw is connected with the output shaft of the first power member 110 through a joint 111, and the second elastic member 211 is sleeved on the connecting screw and the two ends of the second elastic member 211 abut against the joint 111 and the moving plate 210 respectively to buffer the impact of the driving force of the first power member 110 and provide protection for the moving plate 210. In an embodiment, the first power member 110 is configured as a pneumatic cylinder, and the output shaft of the pneumatic cylinder is telescopic to drive the moving plate 210 to move relative to the fixed plate 100. Of course, in other embodiments, the first power member 110 can also be configured as a hydraulic cylinder or a motor, etc., which is not specifically limited here.

[0065] The rotating drive assembly 400 is arranged on the lifting frame 200 and is drivingly connected with the tightening assembly 300, so that the tightening assembly 300 drives the impeller 610 to rotate relative to the water pump 600. The torque detection element 450 is arranged on the rotating drive assembly 400 and is used to detect the rotating torque of the rotating drive assembly 400. The control system is electrically connected with the torque detection element 450 and the rotating drive assembly 400 to control the rotating drive assembly 400. In an embodiment, the rotating drive assembly 400 is arranged on the mounting plate 220 and is drivingly connected with the tightening assembly 300, and the torque detection element 450 is arranged on the power transmission part of the rotating drive assembly 400 to accurately detect the rotating torque of the rotating drive assembly 400. In an embodiment, the torque detection element 450 is provided with a preset torque, when the real-time torque of the rotating drive assembly 400 reaches the preset torque, the torque detection element 450 outputs a signal and transmits the signal to the control system, the control system controls the rotating drive assembly 400 to stop running, thereby realizing accurate control of the tightening assembly 300 and avoiding damage to the water pump 600 and the impeller 610. The preset torque is the torque required by the rotating drive assembly 400 to drive the tightening assembly 300 to tighten the impeller 610, and the preset torque can be flexibly set according to actual conditions, which is not specifically limited here.

[0066] The first power member 110 drives the moving plate 210 to drive the tightening assembly 300 to approach the positioning assembly 500 to be connected with the impeller 610; when the tightening assembly 300 is stably connected with the impeller 610, the rotary driving assembly 400 drives the tightening assembly 300 to drive the impeller 610 to rotate synchronously; in the process of driving the impeller 610 to rotate synchronously by the tightening assembly 300, the first power member 110 keeps running, that is, the first power member 110 always drives the tightening assembly 300 to move towards the positioning assembly 500, so that the tightening assembly 300 is always stably connected with the impeller 610, and then the impeller 610 is tightened to the water pump 600. When the real-time torque of the rotary driving assembly 400 reaches the preset torque, the control system controls the rotary driving assembly 400 to stop running, and at the same time, the first power member 110 drives the tightening assembly 300 to move away from the positioning assembly 500, so that the tightening assembly 300 is separated from the impeller 610.

[0067] The technical scheme of the utility model discloses a fixing plate 100, a lifting frame 200, a tightening assembly 300, a positioning assembly 500, a first power member 110, a rotary driving assembly 400, a torque detection element 450 and a control system are arranged in the water pump impeller tightening device. The lifting frame 200 is slidably arranged on the fixing plate 100; the tightening assembly 300 is rotatably arranged on the lifting frame 200; the positioning assembly 500 is arranged below the tightening assembly 300 and is used for fixing the water pump 600; the first power member 110 is arranged on the fixing plate 100 and is drivingly connected with the lifting frame 200, so that the lifting frame 200 drives the tightening assembly 300 to approach the positioning assembly 500 to connect the impeller 610; the rotary driving assembly 400 is arranged on the lifting frame 200 and is drivingly connected with the tightening assembly 300, so that the tightening assembly 300 drives the impeller 610 to rotate relative to the water pump 600; the torque detection element 450 is arranged on the rotary driving assembly 400 and is used for detecting the rotating torque of the rotary driving assembly 400; the control system is electrically connected with the torque detection element 450 and the rotary driving assembly 400. Compared with the manual assembly mode of the water pump impeller in the prior art, the utility model drives the lifting frame 200 to drive the tightening assembly 300 to connect the impeller 610 by the first power member 110, drives the tightening assembly 300 to drive the impeller 610 to rotate relative to the water pump 600 by the rotary driving assembly 400 to assemble the impeller 610 on the water pump 600, and the torque detection element 450 can ensure that the impeller 610 is tightened on the water pump 600, so that the automation of the impeller 610 assembly is realized, and the assembly efficiency of the impeller 610 is improved.

[0068] Please refer to Figure 3 and Figure 4 In an embodiment, the tightening assembly 300 comprises a positioning shaft 310, a rotating shaft sleeve 320 and a profiling workpiece 330.

[0069] The positioning shaft 310 is arranged on the lifting frame 200, the rotating shaft sleeve 320 is rotatably sleeved on the outer periphery of the positioning shaft 310, and the rotating driving assembly 400 is drivingly connected with the rotating shaft sleeve 320. In an embodiment, the moving plate 210 is provided with a first through hole, one end of the positioning shaft 310 is fixed to the moving plate 210, the other end of the positioning shaft 310 extends through the first through hole and extends towards the positioning assembly 500, and the rotating shaft sleeve 320 is rotatably sleeved on the end of the positioning shaft 310 close to the positioning assembly 500. Further, in an embodiment, the tightening assembly 300 further comprises a fixed block 360, a bearing 370 and a connecting piece 380. The fixed block 360 is sleeved on the outer periphery of the rotating shaft sleeve 320, the bearing 370 is arranged between the fixed block 360 and the rotating shaft sleeve 320 to realize the rotating connection between the rotating shaft sleeve 320 and the fixed block 360. The connecting piece 380 connects the fixed block 360 and the mounting plate 220, so that the fixed block 360 can provide support and positioning for the rotating shaft sleeve 320. Of course, in other embodiments, the rotating shaft sleeve 320 can be directly rotatably connected with the outer periphery of the positioning shaft 310, and the positioning shaft 310 provides support and positioning for the rotating shaft sleeve 320, which is not limited herein.

[0070] The profiling workpiece 330 is arranged on the side of the rotating shaft sleeve 320 close to the positioning assembly 500, and is used to tightly contact and rotate synchronously with the impeller 610. In an embodiment, the side of the rotating shaft sleeve 320 close to the positioning assembly 500 is provided with a mounting seat, and the profiling workpiece 330 is arranged on the mounting seat, so that the rotating shaft sleeve 320 can drive the profiling workpiece 330 to rotate synchronously. Of course, in other embodiments, the profiling workpiece 330 can also be directly arranged on the rotating shaft sleeve 320, which is not limited herein. In an embodiment, the shape and size of the profiling workpiece 330 are adapted to the shape and size of the impeller 610, so as to ensure that the profiling workpiece 330 can tightly contact the impeller 610, thereby pressing the impeller 610 to drive the impeller 610 to rotate synchronously. Specifically, in an embodiment, the impeller 610 is provided with a slope, and the inner wall of the profiling workpiece 330 is also provided with a corresponding slope, so as to tightly contact the impeller 610. Of course, in other embodiments, the shape and size of the profiling workpiece 330 can be flexibly set according to the shape and size of different impellers 610, which is not limited herein. The material of the profiling workpiece 330 can be configured as hard alloy, ceramic material or high-performance plastic, etc. which has good wear resistance, and the specific material of the profiling workpiece 330 is not limited herein. Of course, in other embodiments, a suction member can be arranged at the contact position between the profiling workpiece 330 and the impeller 610 to be suctionally connected with the impeller 610, or a clamp can be directly arranged on the rotating shaft sleeve 320 to clamp the impeller 610, which is not limited herein.

[0071] The first power member 110 drives the moving plate 210 to drive the profiling workpiece 330 to approach the positioning assembly 500, so that the profiling workpiece 330 is tightly attached to the impeller 610; when the profiling workpiece 330 is tightly attached to the impeller 610, the rotary driving assembly 400 drives the rotating shaft sleeve 320 to drive the profiling workpiece 330 to rotate; during the rotating process, the first power member 110 keeps running, so that the profiling workpiece 330 is always pressed against the impeller 610, and it is guaranteed that the profiling workpiece 330 can drive the impeller 610 to rotate synchronously, and then the impeller 610 is tightened in the water pump 600. When the real-time torque of the rotary driving assembly 400 reaches the preset torque, the control system controls the rotary driving assembly 400 to stop running, and at the same time, the first power member 110 drives the profiling workpiece 330 to move away from the positioning assembly 500, so that the profiling workpiece 330 is separated from the impeller 610.

[0072] The technical scheme of the embodiment of the utility model, through setting rotating shaft sleeve 320 and profiling workpiece 330, rotating shaft sleeve 320 can transmit the power of rotary driving assembly 400 to profiling workpiece 330, and profiling workpiece 330 is tightly attached to impeller 610 and is pressed against impeller 610 to drive impeller 610 to rotate synchronously, avoid damaging impeller 610, and it is convenient to operate, realize the automation of impeller 610 assembly, and then improve the assembly efficiency of impeller 610.

[0073] Please refer to Figures 2 to 4 In an embodiment, the tightening assembly 300 further comprises a positioning pin 340 and a first elastic member 350. The positioning shaft 310 is internally provided with a containing groove, one end of the positioning pin 340 is movably arranged in the containing groove, and the other end of the positioning pin 340 is clamped with the rotor shaft 620 of the water pump 600. The first elastic member 350 is arranged in the containing groove and connects the positioning pin 340 and the groove wall of the containing groove.

[0074] In an embodiment, the accommodating groove comprises a first accommodating groove and a second accommodating groove in communication, the head of the positioning pin 340 is arranged in the first accommodating groove, the stem of the positioning pin 340 extends to the second accommodating groove, and the tail of the positioning pin 340 is used for clamping with the rotor shaft 620. In an embodiment, the profiling workpiece 330 is provided with an opening corresponding to the opening of the second accommodating groove, the tail of the positioning pin 340 passes through the opening and is exposed outside the profiling workpiece 330. Specifically, in an embodiment, the size of the opening of the first accommodating groove is greater than the size of the opening of the second accommodating groove, the size of the head of the positioning pin 340 is greater than the size of the opening of the second accommodating groove and smaller than the size of the opening of the first accommodating groove, so as to avoid the positioning pin 340 from being pulled out of the first accommodating groove. Wherein, the size of the opening of the accommodating groove and the size of the positioning pin 340 can be flexibly set according to actual conditions, which is not limited here. Further, in an embodiment, the first elastic member 350 is arranged in the first accommodating groove and connects the bottom of the first accommodating groove and the head of the positioning pin 340, so that the positioning pin 340 has a tendency to move away from the first accommodating groove and is not pulled out of the first accommodating groove. In an embodiment, the rotor shaft 620 is provided with a T-shaped opening, and the positioning pin 340 is correspondingly configured as a T-shaped head positioning pin 340, so as to facilitate clamping with the rotor shaft 620. Of course, in other embodiments, the type of the positioning pin 340 can be flexibly selected according to the specific structure of the rotor shaft 620, which is not limited here.

[0075] Further, in an embodiment, the wall of the accommodating groove is provided with a first plane, the stem of the positioning pin 340 is provided with a second plane 341, the first plane and the second plane 341 abut and the second plane 341 can slide along the first plane. In an embodiment, the length of the positioning pin 340 is greater than the depth of the first accommodating groove, so that the stem of the positioning pin 340 is always at least partially located in the second accommodating groove, the wall of the second accommodating groove is provided with a first plane, so as to avoid the positioning pin 340 from rotating relative to the positioning shaft 310, and to ensure that the positioning pin 340 can only move along the axial direction of the positioning shaft 310. In an embodiment, the wall of the second accommodating groove is provided with two opposite first planes, and the stem of the positioning pin 340 is correspondingly provided with two second planes 341. Of course, in other embodiments, the first plane and the second plane 341 can be provided with one or more, which is not limited here. Of course, in other embodiments, a limiting groove 521 can also be directly arranged on the side wall of the accommodating groove, and a protrusion is arranged on the positioning pin 340 to limit the rotation of the positioning pin 340, which is not limited here.

[0076] The first power member 110 drives the moving plate 210 to drive the profiling workpiece 330 and the positioning pin 340 to approach the positioning assembly 500, and the positioning pin 340 is first clamped with the rotor shaft 620; the first power member 110 continues to drive the moving plate 210 to approach the positioning assembly 500, so that the profiling workpiece 330 is tightly attached to the impeller 610, in the process, the first elastic member 350 is compressed, and under the elastic force of the first elastic member 350, the positioning pin 340 is always stably connected with the rotor shaft 620, so as to avoid the rotation of the rotor shaft 620; when the profiling workpiece 330 is tightly attached to the impeller 610, the rotary driving assembly 400 drives the rotating shaft sleeve 320 to drive the profiling workpiece 330 to rotate; in the rotating process, the positioning pin 340 is always stably connected with the rotor shaft 620, and the first power member 110 keeps running, so that the profiling workpiece 330 is always tightly attached to the impeller 610, thereby the impeller 610 is tightened on the rotor shaft 620. When the real-time torque of the rotary driving assembly 400 reaches the preset torque, the control system controls the rotary driving assembly 400 to stop running, and at the same time, the first power member 110 drives the profiling workpiece 330 and the positioning pin 340 to move away from the positioning assembly 500.

[0077] The technical scheme of the embodiment of the utility model, through setting the positioning pin 340, the rotor shaft 620 is fixed, avoids the rotation of the rotor shaft 620 in the process of assembling to hinder the assembly of the impeller 610. Through setting the first elastic member 350, the positioning pin 340 can always fix the rotor shaft 620 in the process of assembling, and the realization of assembling is ensured, and the first elastic member 350 can also buffer the driving force received by the positioning pin 340, avoids damaging the rotor shaft 620, and improves the reliability of the water pump impeller tightening device.

[0078] Please refer to Figure 3 and Figure 4 In an embodiment, the rotary driving assembly 400 comprises a support 410, a second power member 420 and a speed reducer 430. The support 410 is arranged on the lifting frame 200, the second power member 420 is arranged at one end of the support 410, and the speed reducer 430 is arranged on the support 410. The second power member 420 is drivingly connected with the speed reducer 430, and the output shaft of the speed reducer 430 is drivingly connected with the rotating shaft sleeve 320.

[0079] In an embodiment, the support 410 is arranged on the side of the moving plate 210 away from the positioning assembly 500, the speed reducer 430 is fixed to the support 410, the second power element 420 is fixed to the side of the speed reducer 430 away from the support 410, the output shaft of the second power element 420 is drivingly connected with the speed reducer 430, and the second power element 420 is electrically connected with the control system. In an embodiment, the output shaft of the second power element 420 extends into the speed reducer 430, the speed reducer 430 is internally provided with a transmission structure, and the second power element 420 is drivingly connected with the speed reducer 430 through the transmission structure. The transmission structure can be a shaft coupling, a sprocket, a gear, or the like, which is not limited herein. In an embodiment, the second power element 420 is configured as a servo motor. Of course, in other embodiments, the second power element 420 can also be configured as a pneumatic cylinder or a hydraulic cylinder, which is not limited herein. In an embodiment, the rotary driving assembly 400 further comprises a transmission rotating shaft 440, a driving wheel 470, and a driven wheel 480. The transmission rotating shaft 440 is rotatably arranged in the lifting frame 200, one end of the transmission rotating shaft 440 is drivingly connected with the output shaft of the speed reducer 430, and the driving wheel 470 is arranged at the other end of the transmission rotating shaft 440. The driven wheel 480 is sleeved on the outer periphery of the rotating shaft sleeve 320, and the driven wheel 480 is drivingly connected with the driving wheel 470 through a synchronous belt. In an embodiment, the moving plate 210 is provided with a second through hole, and the transmission rotating shaft 440 is rotatably arranged in the second through hole through a support. Of course, in other embodiments, the transmission rotating shaft 440 can also be rotatably arranged in the second through hole through a flange plate or a bearing 370, which is not limited herein. In an embodiment, the driving wheel 470 is arranged at the end of the transmission rotating shaft 440 close to the positioning assembly 500, the driven wheel 480 is arranged at the side of the fixed block 360 away from the positioning assembly 500, and the driven wheel 480 is located on the same horizontal line as the driving wheel 470. Further, in an embodiment, a positioning ring is arranged between the driven wheel 480 and the fixed block 360, the positioning ring is sleeved on the rotating shaft sleeve 320, so as to avoid axial movement of the driven wheel 480 along the rotating shaft sleeve 320 and ensure effective transmission of power.

[0080] In an embodiment, the torque detection element 450 is configured as a torque sensor, and the measurement rotating shaft of the torque sensor is connected with the output shaft of the speed reducer 430 and the transmission rotating shaft 440. Specifically, in an embodiment, the two ends of the measurement rotating shaft of the torque sensor extend out from the two sides of the torque sensor, and the two ends of the measurement rotating shaft are drivingly connected with the output shaft of the speed reducer 430 and the transmission rotating shaft 440 through shaft couplings 460. Of course, in other embodiments, the measurement rotating shaft can also be connected with the speed reducer 430 and the transmission rotating shaft 440 through clamping or bonding, so as to ensure transmission of power while detecting torque, which is not limited herein. Of course, in other embodiments, the torque detection element 450 can also be configured as a torque meter or a torque transducer, which is not limited herein.

[0081] When the profiling workpiece 330 is tightly attached to the impeller 610, the second power component 420 drives the speed reducer 430 to operate, and transmits power to the transmission shaft 440 through the torque sensor, the transmission shaft 440 drives the driving wheel 470 to rotate, the driving wheel 470 transmits power to the driven wheel 480 through the synchronous belt, and the driven wheel 480 drives the rotating shaft sleeve 320 to rotate, thereby driving the profiling workpiece 330 to rotate. When the real-time torque detected by the torque sensor reaches the preset torque, the torque sensor transmits a signal to the control system, and the control system controls the second power component 420 to stop operating.

[0082] The technical scheme of the utility model embodiment, through setting up speed reducer 430, transmission shaft 440 and torque sensor, speed reducer 430 can convert the high rotating speed, low torque output of second power component 420 into low rotating speed, high torque output, ensure the effective transmission of power. Transmission shaft 440 can accurately transmit power to rotating shaft sleeve 320 through driving wheel 470 and driven wheel 480. Torque sensor is arranged between speed reducer 430 and transmission shaft 440, can accurately detect real-time torque, realize the accurate control of second power component 420, further improve the reliability of water pump impeller tightening device.

[0083] Please refer to Figure 2 In an embodiment, the positioning assembly 500 includes a base 510 and a limiting table 520. The limiting table 520 is detachably arranged on the base 510, and the limiting table 520 is provided with a limiting groove 521 for fixing the water pump 600.

[0084] In an embodiment, the base 510 is provided with a rotating buckle 511, and the limiting table 520 is provided with a clamping hole. The base 510 and the limiting table 520 are detachably connected through the rotating buckle 511 and the clamping hole. Specifically, in an embodiment, the rotating buckle 511 includes a rotating rod and an operating rod. The two ends of the rotating rod are limited to the side wall of the base 510, and one end of the operating rod is arranged on the rotating rod. The rotating rod can rotate relative to the base 510 to make the operating rod rotate and clasp into the clamping hole. Of course, in other embodiments, the limiting table 520 can also be detachably connected with the base 510 through screwing or magnetic attraction, etc. Here, no specific limitation is made. In an embodiment, the shape and size of the limiting groove 521 are adapted to the shape and size of the water pump 600, so as to ensure that the water pump 600 can be clamped into the limiting groove 521. The specific shape and size of the limiting groove 521 can be flexibly set according to the shape and size of the water pump 600, and no limitation is made here.

[0085] The technical scheme of the embodiment of the utility model discloses, through setting up the limiting platform 520 and the base 510, the limiting platform 520 is equipped with the limiting slot 521 to fix the water pump 600, avoids the rotation of water pump 600 in the assembly process, and the limiting platform 520 and the base 510 can be detachably connected, can replace the required limiting slot 521 according to actual demand, improve the use range and use flexibility of water pump impeller tightening device.

[0086] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by the utility model specification and the attached drawing contents, or direct / indirect application in other related technical fields under the technical concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A water pump impeller tightening device characterized by comprising: The application relates to a water pump fixing device. The device comprises: a fixing plate; a lifting frame slidingly arranged on the fixing plate; a tightening assembly rotatably arranged on the lifting frame; a positioning assembly arranged below the tightening assembly, the positioning assembly being used for fixing the water pump; a first power member arranged on the fixing plate and drivingly connected with the lifting frame, so that the lifting frame drives the tightening assembly to move close to the positioning assembly to connect the impeller; a rotary driving assembly arranged on the lifting frame and drivingly connected with the tightening assembly, so that the tightening assembly drives the impeller to rotate relative to the water pump; a torque detection element arranged on the rotary driving assembly and used for detecting the rotary torque of the rotary driving assembly; and a control system electrically connected with the torque detection element and the rotary driving assembly.

2. The water pump impeller tightening device of claim 1, wherein The tightening assembly comprises: a positioning shaft arranged on the lifting frame; a rotary shaft sleeve rotatably sleeved on the outer periphery of the positioning shaft, the rotary driving assembly being drivingly connected with the rotary shaft sleeve; and a profiled workpiece arranged on one side of the rotary shaft sleeve close to the positioning assembly, the profiled workpiece being used for tightly abutting against the impeller so that the impeller rotates synchronously with the profiled workpiece.

3. The water pump impeller tightening device of claim 2, wherein The tightening assembly further comprises: a positioning pin, the positioning shaft being internally provided with a receiving groove, one end of the positioning pin being movably arranged in the receiving groove, and the other end of the positioning pin being clamped with a rotor shaft of the water pump; and a first elastic member arranged in the receiving groove and connecting the positioning pin with the groove wall of the receiving groove.

4. The water pump impeller tightening device as set forth in claim 3, characterized by The groove wall of the receiving groove is provided with a first plane, the positioning pin is provided with a second plane, the first plane and the second plane abut against each other, and the second plane can slide along the first plane.

5. The water pump impeller tightening device as set forth in claim 2, characterized by The tightening assembly further comprises: a fixing block sleeved on the outer periphery of the rotary shaft sleeve; a bearing arranged between the fixing block and the rotary shaft sleeve; and a connecting member connecting the fixing block with the lifting frame.

6. The water pump impeller tightening device as set forth in claim 2, characterized by The rotary driving assembly comprises: a support arranged on the lifting frame; a second power member arranged on one end of the support; and a speed reducer arranged on the support, the second power member being drivingly connected with the speed reducer, and an output shaft of the speed reducer being drivingly connected with the rotary shaft sleeve.

7. The water pump impeller tightening device as set forth in claim 6, characterized by The rotary driving assembly further comprises: a transmission rotating shaft rotatably penetrating through the lifting frame, one end of the transmission rotating shaft being in transmission connection with the output shaft of the speed reducer; a driving wheel arranged on the other end of the transmission rotating shaft; and a driven wheel sleeved on the outer periphery of the rotary shaft sleeve, the driven wheel being in transmission connection with the driving wheel through a synchronous belt.

8. The water pump impeller tightening device of claim 7, wherein, The torque detection element is configured as a torque sensor, a measurement rotating shaft of the torque sensor being connected with the output shaft of the speed reducer and the transmission rotating shaft.

9. The water pump impeller tightening device as set forth in claim 1, characterized by, The positioning assembly comprises: a base; and a limiting table detachably arranged on the base, the limiting table being provided with a limiting groove, the limiting groove being used for fixing the water pump.

10. The water pump impeller tightening device of claim 9, wherein, The base is provided with a rotary buckle, the limiting table is provided with a socket, and the base and the limiting table are detachably connected through the rotary buckle and the socket.

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