CN110196140B - Automatic balancing machine and jumping detection mechanism thereof - Google Patents

Abstract

The invention relates to the field of cross-flow fan blade processing equipment, in particular to a runout detection mechanism, which comprises a second fixed shaft bracket, a second movable shaft bracket and a runout detection assembly, wherein the second fixed shaft bracket, the second movable shaft bracket and the runout detection assembly are arranged on a rack; the second movable shaft bracket is close to or far away from the second fixed shaft bracket; the motor shaft end of the workpiece is positioned on a second fixed shaft bracket, the steel shaft end of the workpiece is positioned on a second movable shaft bracket, and the second fixed shaft bracket is provided with a jumping rotation motor to drive the workpiece to rotate; the method is characterized in that: the runout detection assembly comprises a runout axial moving pair, a runout radial moving pair arranged on the runout axial moving pair, a runout rotating pair arranged on the runout radial moving pair, a runout detection probe arranged on the runout rotating pair and a runout sensor. The runout detection probe in the runout detection mechanism can be adjusted in the axial direction, the radial direction and the measurement angle of the cross-flow fan blade, so that the data of each measurement point can be automatically and accurately measured.

Description

Automatic balancing machine and jumping detection mechanism thereof

Technical Field

The invention relates to the field of cross-flow fan blade processing equipment, in particular to an automatic balancing machine and a runout detection mechanism thereof.

Background

The cross-flow fan blade is one of important accessories in the air conditioner and is formed by connecting and processing a plurality of middle joints, the middle joints are formed by integrally injection molding a circular middle disc and a plurality of blades, the rear ends of the blades are connected with the front end of the circular middle disc into a whole, and a plurality of blade mounting grooves matched with the front ends of the blades in shape and number are formed in the rear end of the circular middle disc; the front end of the blade of the latter middle section is inserted into the blade mounting groove of the former middle section.

According to the related statistics, the sum of the air conditioner output in 2015 of China is 1.5 hundred million, which is the first air conditioner production and export of the world. The cross-flow fan blade has the advantages of large air quantity, stable air supply, small noise and the like, is an important component of an indoor air conditioner air supply system, and consists of an end cover, a shaft cover and a plurality of middle sections. The cross-flow fan blade is generally formed by injection molding of ABS, AS or modified plastic, and the main production procedures comprise: batching, injection molding, welding (generally ultrasonic welding) and dynamic balance treatment, wherein the unbalanced quantity of the cross-flow fan blade mainly comprises the following sources: 1) Unbalance amount generated in injection molding process: due to uneven shrinkage of the plastic, errors of the mold, and the like; 2) Unbalance amount generated in the welding process: due to alignment errors, ultrasonic bias welding, welding spillage, etc. In the actual production process, the maximum unbalance amount of the single face of the 9-section through-flow fan blade can reach 50 g.mm.

In the traditional method, the main working procedures of the flow balancing treatment of the cross-flow fan blade comprise the following steps: measuring the unbalance of the cross-flow fan blade by adopting an unbalance acquisition system, manually clamping a metal balance sheet on a corresponding phase of the end surface according to the equivalent unbalance of the end surface calculated by a control system, then pasting and fixing the metal balance sheet by using glue, and then carrying out an unbalance acquisition test again, wherein if the unbalance exceeding the requirement exists, the metal balance sheet needs to be corrected again; the general manual dynamic balance treatment of the cross-flow fan blade can be completed by collecting unbalance amount for 2-3 times and pasting a balance sheet, and the minimum residual unbalance amount of the cross-flow fan blade in the manual dynamic balance treatment is about 10-12 g.mm, which still can cause serious problems of unbalance air supply, noise, damage to the cross-flow fan blade and the like.

The patent document of China with the publication number of CN203385513U discloses a dynamic unbalance machine for unbalance measurement, which comprises a main machine body, a left supporting mechanism, a right supporting mechanism, a magnitude sensor, a phase sensor, a judging sensor and a counting sensor, wherein one side part of the left supporting mechanism and one side part of the right supporting mechanism are respectively arranged, the counting sensor is arranged on a left vibration swing frame of the left supporting mechanism, the judging sensor is arranged on a right vibration swing frame of the right supporting mechanism, and the phase sensor opposite to the judging sensor is arranged on the right supporting mechanism. The prior patent scheme can only identify the unbalanced and out-of-tolerance workpiece, and cannot compensate the dynamic balance of the workpiece.

A dynamic balancing machine for detecting cross-flow fan blades is disclosed in Chinese patent publication No. CN 202676372U. The dynamic balancing machine for detecting the unbalanced quantity position of the through-flow fan blade comprises a frame, a display, a controller, two groups of clamps for axially clamping the through-flow fan blade and an index plate for driving the through-flow fan blade to rotate, wherein the two groups of clamps and the display are arranged on the frame, and the index plate is connected with one group of clamps; the controller is respectively connected with the display, the dividing disc and the two groups of clamps; the cursor indicating device comprises a bracket and an indicating lamp for emitting area light source light, wherein a light outlet of the indicating lamp for emitting area light source light faces downwards, and the indicating lamp for emitting area light source light is connected with the controller through a connecting wire. The dynamic balancing machine for detecting the unbalanced quantity position of the cross-flow fan blade has the advantages of novel structure and high unbalanced quantity position weighting accuracy and weighting efficiency. The patent scheme can only check the unbalanced quantity position of the through-flow fan blade, and still needs manual or other equipment to cooperatively assemble the balance weight.

The Chinese patent publication No. CN205614771U discloses an automatic dynamic balancing machine for double-station porous drilling through-flow fan blades, which comprises a sliding table guide rail, a first rotary support, a second rotary support, a first drilling de-duplication device and a second drilling de-duplication device; the first drilling and weight removing device is provided with a first drilling mechanism and a first end face propping mechanism, the second drilling and weight removing device is provided with a second drilling mechanism and a second end face propping mechanism, and in operation, the first drilling mechanism and the second end face propping mechanism respectively and simultaneously act on two ends of the through-flow fan blade, or the second drilling mechanism and the first end face propping mechanism respectively and simultaneously act on two ends of the through-flow fan blade. The utility model has the following beneficial effects: 1) Reducing the minimum residual unbalance of the cross-flow fan blade; 2) The dynamic balance treatment efficiency is improved; 3) Automation is easy to realize. In the technical scheme, a mode of drilling and removing weights by adopting a numerical control technology is adopted to replace a traditional manual pasting balance piece mode to realize the flow balance treatment of the cross-flow fan blade, the accuracy of numerical control drilling is far higher than that of manual pasting of the balance piece, and the minimum residual unbalance can reach 1-2 g.mm; however, the original structure of the cross-flow fan blade is damaged by adopting a drilling and weight removing mode, and the strength of the cross-flow fan blade is easily influenced.

Based on the defects of the prior art, the applicant intends to apply for an automatic balancing machine, which can realize the procedures of runout detection, dynamic balance detection, balancing piece assembly and the like of the cross-flow fan blade. In this case, the conventional technology disclosed in the above patent does not perform the end face runout detection and the radial runout detection on the through-flow fan blade, and therefore it is necessary to provide a runout detection mechanism for automatically performing the end face runout detection and the radial runout detection on the through-flow fan blade.

Disclosure of Invention

In order to solve the above-mentioned problems, a first object of the present invention is to provide a runout detection mechanism, which uses a runout axial moving pair, a runout radial moving pair and a runout rotating pair to enable a runout detection probe to adjust in axial, radial and measurement angles of a through-flow fan blade, so as to automatically and accurately measure data of each measurement point; a second object of the present invention is to provide an automatic balancer having the above-described runout detection mechanism.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The jump detection mechanism comprises a second fixed shaft bracket, a second movable shaft bracket and a jump detection assembly which are arranged on a frame; the second movable shaft bracket is close to or far away from the second fixed shaft bracket, and a second detection station is formed between the second fixed shaft bracket and the second movable shaft bracket; the motor shaft end of the workpiece is positioned on a second fixed shaft bracket, the steel shaft end of the workpiece is positioned on a second movable shaft bracket, and the second fixed shaft bracket is provided with a jumping rotating motor to drive the workpiece to rotate; the method is characterized in that: the runout detection assembly comprises a runout axial moving pair, a runout radial moving pair arranged on the runout axial moving pair, a runout rotating pair arranged on the runout radial moving pair, a runout detection probe arranged on the runout rotating pair and a runout sensor;

The jumping axial moving pair can move along the axial direction of the workpiece, and the axial length of the workpiece can be measured in the moving process; in the process that the runout axial moving pair drives the runout detection probe to axially move, the runout detection probe can detect radial runout of each measuring point of the workpiece; the runout radial moving pair can move along the radial direction of the workpiece and is used for radial adjustment when measuring end face runout and steel shaft runout; the jumping rotation pair can enable the jumping detection probe on the jumping rotation pair to rotate for a certain angle, so that the detection direction is adjusted.

Preferably, a second sliding rail is arranged on the frame, the second movable shaft bracket is movably arranged on the second sliding rail, and a jumping length adaptive electric cylinder is arranged on the second sliding rail.

Preferably, the second movable shaft frame is provided with two groups of rollers or bearings for combined positioning of the steel shaft, the steel shaft is positioned between the two groups of rollers or bearings, and at least the side wall of the steel shaft is exposed.

Preferably, a screw screwing assembly is arranged on the rack and comprises a screw screwing motor, a lower pressing cylinder and a screw driver, wherein the lower pressing cylinder is used for pressing the screw driver down to prop against the screw, and the screw screwing motor drives the screw driver to rotate.

Preferably, the output end of the jumping rotary motor is also linked with a jumping rotary encoder, and the running state of the jumping rotary motor is transmitted to the motor controller in real time by the jumping rotary encoder, so that the speed regulation and the start and stop of the motor are realized.

Preferably, the jumping axial moving pair and the jumping radial moving pair are respectively a jumping axial displacement electric cylinder and a jumping radial displacement electric cylinder; the runout revolute pair comprises a rotary motor and a rotary table arranged on an output shaft of the rotary motor, and a runout detection probe is fixed on the rotary table.

An automatic balancing machine, characterized in that: comprising a runout detection mechanism according to any one of the preceding claims.

The invention adopts the technical scheme, and relates to a jump detection mechanism and an automatic balancing machine with the same. In the jump detection mechanism, the workpiece is transferred to a second detection station, the second movable shaft bracket is relatively close to the second fixed shaft bracket, the motor shaft end of the workpiece is erected on the second fixed shaft bracket, and the steel shaft end of the workpiece is erected on the second movable shaft bracket. After the workpiece is positioned, the jumping rotation motor drives the workpiece to rotate. Under the cooperative operation of the jumping axial moving pair, the jumping radial moving pair and the jumping rotating pair, the axial length of the workpiece is measured, the end face jumping and the radial jumping of the workpiece are detected, and whether the workpiece is a qualified workpiece is judged based on the detected data. According to the jump detection mechanism, the jump detection probe can be adjusted in the axial direction, the radial direction and the measurement angle of the through-flow fan blade by adopting the jump axial moving pair, the jump radial moving pair and the jump rotating pair, so that the data of each measurement point can be automatically and accurately measured.

Drawings

Fig. 1 is a schematic diagram of the whole machine of the automatic balancing machine.

Fig. 2 is a schematic diagram of the core area of the automatic balancing machine.

Fig. 3 is a schematic structural view of the feeding mechanism.

Fig. 4 is an assembly schematic diagram of the screw detection mechanism, the runout detection mechanism, and the dynamic balance detection mechanism.

Fig. 5 is an enlarged view of a portion a of fig. 4.

Fig. 6 is an assembly schematic diagram of the dynamic balance detecting mechanism.

Fig. 7 is a schematic structural view of a balance weight assembly mechanism.

Fig. 8 is a schematic structural diagram of a counterweight assembly mechanism.

Fig. 9 is a schematic structural view of the discharging mechanism.

Fig. 10 is a schematic structural view of the clamp transfer mechanism.

Fig. 11 is a schematic structural view of a weight production mechanism.

Fig. 12 is an enlarged view of a portion B of fig. 11.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1:

An automatic balancing machine as shown in fig. 1 to 12 is suitable for the processes of runout detection, dynamic balance detection, balance weight assembly and the like of a through-flow fan blade (hereinafter referred to as a workpiece). The automatic balancing machine comprises a frame 1, a feeding mechanism 2, a screw detection mechanism 3, a runout detection mechanism 4, a dynamic balance detection mechanism 5, a balance block assembly mechanism 6, a balance block production mechanism 7 and a discharging mechanism 8 which are arranged on the frame 1, and a clamping and transferring mechanism for transferring workpieces among the feeding mechanism 2, the screw detection mechanism 3, the runout detection mechanism 4, the dynamic balance detection mechanism 5 and the discharging mechanism 8.

The following is a detailed description of the various actuators of the automatic balancing machine in sections.

Feeding mechanism 2

The purpose of the feeding mechanism 2 is to convey the workpiece to a specific station to be fed, in which there is a feeding sensor 21 capable of detecting whether the workpiece enters, and the achievable structure of how the workpiece is conveyed to the station to be fed is not unique, that is, the feeding mechanism 2 only needs to include a conveying component and the feeding sensor 21 disposed in the conveying path (preferably, at the end of the conveying path) of the conveying component. The structure of the specific feeding mechanism 2 does not influence the automatic balancing machine to finish the jump detection, dynamic balance detection and balance block assembly of the workpiece. In this embodiment there is provided a conveyor assembly comprising a conveyor belt 22 positioned on a frame 1 by a plurality of shafts, and a feed motor for driving rotation of one of the shafts; as shown in the figures, the conveyor belt may be a plurality of narrow conveyor belts with a gap therebetween, and the gap needs to be smaller than the axial length of the workpiece. When feeding, the workpiece is manually placed on the conveying belt, and the conveying belt conveys the workpiece to a station to be fed. In the process, the material sensor 21 detects whether a workpiece enters a station to be loaded; if no material is detected, the feeding motor continues to operate feeding; if the feeding machine detects that the workpiece is fed, the feeding motor stops and waits for the clamping and conveying mechanism to take away the workpiece clamp in the station to be fed, and then the next feeding is performed.

Screw detection mechanism 3

The screw detection mechanism 3 is used for detecting whether a screw is assembled on the motor shaft disk end of the workpiece, and if the screw is detected, the workpiece is rotationally positioned at a certain angle; if no screw is detected, the workpiece is characterized as "screw missing" waste, and is transferred to a designated "screw missing" waste bin by a clamping transfer mechanism. The screw detection mechanism 3 comprises a first fixed shaft bracket 31 and a first movable shaft bracket 32 which are arranged on the frame 1, a screw detection probe 36 which is arranged above the first fixed shaft bracket 31, and a first detection motor 33 which is arranged on the first movable shaft bracket 32 and is used for driving a workpiece to rotate. The first fixed shaft bracket 31 is fixedly arranged relative to the frame 1, the first movable shaft bracket 32 can move along the frame 1 along a linear direction, the first movable shaft bracket 32 is close to or far away from the first fixed shaft bracket 31, and a first detection station is formed between the first movable shaft bracket 32 and the first fixed shaft bracket 31. The first movable shaft 32 can move in a straight line direction in many embodiments, such as some moving pairs used in conventional machines, including cylinder moving pairs, screw moving pairs, and the like. In this embodiment, a first sliding rail is disposed on the frame 1, a first movable shaft frame 32 is movably disposed on the first sliding rail 34, and a feeding homing cylinder is disposed, an output end of the feeding homing cylinder is connected to the first movable shaft frame 32, and the feeding homing cylinder drives the first movable shaft frame 32 to move on the first sliding rail 34. The workpiece is transferred to the first detection station by the clamping and transferring mechanism, the steel shaft end of the workpiece is erected on the first movable shaft bracket 32, and the motor shaft end of the workpiece is erected on the first fixed shaft bracket 31. the output end of the first detection motor 33 is connected with the steel shaft end of the workpiece and drives the workpiece to synchronously rotate; the connection mode between the output end of the first detection motor 33 and the steel shaft end of the workpiece can be a sleeve connection mode, for example, a sleeve is arranged on the output end of the first detection motor 33 and can be connected with the steel shaft end of the workpiece in a sleeve connection mode. In the present embodiment as shown in the drawing, a clamping member 35 is disposed on the first movable shaft bracket 32, the clamping member 35 may be a clamping air claw, the output shaft of the first detection motor 33 is connected to the clamping member 35, the clamping member 35 clamps and fixes the steel shaft end of the workpiece, and the first detection motor 33 drives the workpiece to rotate through the clamping member 35. In addition, the shaft sleeve is arranged at the motor shaft end of the workpiece, and when the first detection station is used for positioning, the first detection motor 33 on the first movable shaft bracket 32 provides the rotating power for the workpiece, and the first fixed shaft bracket 31 is only used for erecting the other end part of the workpiece, so that the shaft sleeve with a shaft lever capable of being arranged at the motor shaft end of the workpiece in a penetrating way is arranged on the first fixed shaft bracket 31. The screw detection probe 36 disposed on the first fixed shaft bracket 31 is used for detecting whether a screw is assembled on a shaft sleeve of a motor shaft end of a workpiece, in this embodiment, the screw detection probe 36 adopts a laser detection principle, for example, a scheme of laser ranging can be adopted to determine, because whether data obtained by assembling the screw for laser ranging are different, the specific principle of laser ranging belongs to the prior art, and can be seen in hundred degrees encyclopedia, and the following is extracted: the laser diode emits laser pulses at the target. The laser light is scattered in all directions after being reflected by the target. Part of the scattered light returns to the sensor receiver, is received by the optical system and imaged on the avalanche photodiode, which is an optical sensor with an amplifying function inside, so that the avalanche photodiode can detect extremely weak light signals, record and process the time from the emission of the light pulse to the return to the receiving, and can measure the target distance. In the scheme, the screw detection probe 36 is positioned right above the shaft lever of the first fixed shaft bracket 31, and the detection end of the screw detection probe 36 is vertically downward; furthermore, in order to adapt to different models and specifications, a detection moving pair 37 is further provided on the first fixed shaft frame 31, the screw detection probe 36 is fixed on the detection moving pair 37, the detection moving pair 37 can move relative to the axial direction of the workpiece, and the relative axial position of the screw detection probe 36 is adjusted. the detection shifting pair 37 may be driven by a telescopic cylinder.

The operation process of the screw detection mechanism 3 is as follows: the clamping and transferring mechanism transfers the workpiece to the first detection station, the first movable shaft bracket 32 is relatively close to the first fixed shaft bracket 31, the motor shaft end of the workpiece is erected on the first fixed shaft bracket 31, and the steel shaft end of the workpiece is erected on the first movable shaft bracket 32, so that the workpiece is positioned. After the positioning is completed, the first detection motor 33 drives the workpiece to rotate for one circle; in the process, the screw detection probe 36 detects whether a motor shaft end frame of the workpiece is provided with screws, if the screws are detected, the first detection motor 33 is stopped immediately, the workpiece is positioned, and the screw detection probe 36 is opposite to the screws; if no screws are detected, the workpiece is characterized as "missing screw" scrap. Finally, the clamping and transferring mechanism clamps the workpiece, and the first movable shaft bracket 32 is withdrawn from reset; based on the detection result, the clamping and transferring mechanism transfers the workpiece to the runout detecting mechanism 4 or the 'screw missing' waste bin.

Jumping detection mechanism 4

The runout detecting mechanism 4 is used for detecting axial length, end runout and radial runout data of the workpiece, judging whether the workpiece is a qualified workpiece based on the detected data, and if the detection result is a qualified workpiece, transferring the workpiece to the dynamic balance detecting mechanism 5 by the clamping and transferring mechanism for further detection. And if the detection result is that the workpiece is unqualified, the workpiece is transferred to a designated jumping waste bin through a clamping and transferring mechanism. The bounce detection mechanism 4 comprises a second fixed shaft bracket 41, a second movable shaft bracket 42 and a bounce detection component which are arranged on the frame 1. Wherein, the second fixed shaft bracket 41 is fixed on the frame 1, the second movable shaft bracket 42 is movably arranged on the frame 1 along the linear direction, and the second movable shaft bracket 42 is close to or far away from the second fixed shaft bracket 41. The second detection station is formed between the second fixed shaft bracket 41 and the second movable shaft bracket 42, and as with the first movable shaft bracket 32 in the screw detection mechanism 3, many movable embodiments of the second movable shaft bracket 42 moving along the linear direction can be realized, such as some moving pairs applied in the conventional machinery, including the modes of an air cylinder moving pair, a screw rod moving pair, and the like. In the embodiment shown in the figure, a second sliding rail is arranged on the frame 1, a second movable shaft bracket 42 is movably arranged on the second sliding rail, a jump length adaptive electric cylinder 43 is adopted for the second sliding rail, the electric cylinder is a modularized product which integrates a servo motor and a screw rod, and the rotary motion of the servo motor is converted into linear motion, so that the linear motion of the second movable shaft bracket 42 is realized. When the clamping and transferring mechanism transfers the workpiece to the second detection station, the second movable shaft frame 42 is relatively close to the second fixed shaft frame 41, the motor shaft end of the workpiece is positioned on the second fixed shaft frame 41, and the steel shaft end of the workpiece is positioned on the second movable shaft frame 42. Because the workpiece detected on the second detection station is subjected to the screw detection procedure, the workpiece is likely to contain screws; and because the steel shaft of the workpiece is difficult to fix and realize circumferential linkage. Therefore, unlike the screw detection mechanism 3 described above, the second movable shaft frame 42 in this mechanism is only used for erecting the steel shaft of the workpiece, and only needs to pass through the bearing or the support. The second fixed shaft bracket 41 is provided with a jumping rotating motor 44 to drive the workpiece to rotate, specifically, the second fixed shaft bracket 41 is provided with a shaft lever which is arranged in a shaft sleeve at the shaft end of the workpiece motor in a penetrating way, so that the workpiece is positioned; and further, in order to realize circumferential linkage of the shaft rod and the workpiece, the shaft rod and the workpiece need to be positioned. In this embodiment, a set of screw screwing assemblies is further disposed on the frame 1, and is used for screwing screws on the motor shaft sleeve of the workpiece, and screwing the shaft rod and the motor shaft sleeve, so that circumferential linkage of the shaft rod and the workpiece is achieved. In operation, the output of the runout rotary motor 44 rotates the workpiece via the shaft. The output end of the jumping rotary motor 44 is also linked with a jumping rotary encoder, and the running state of the jumping rotary motor 44 is transmitted to the motor controller in real time by the jumping rotary encoder, so that the speed regulation and the start and stop of the motor are realized.

The runout detection assembly comprises a runout axial moving pair, a runout radial moving pair arranged on the runout axial moving pair, a runout rotating pair arranged on the runout radial moving pair, a runout detection probe 49 arranged on the runout rotating pair and a runout sensor. The jumping axial moving pair can move along the axial direction of the workpiece, and the axial length of the workpiece can be measured in the moving process; in addition, in the process that the runout axial moving pair drives the runout detection probe 49 to axially move, the runout detection probe 49 can detect radial runout of each measuring point (each section of disc body position of the through-flow fan blade) of the workpiece. The runout radial moving pair can move along the radial direction of the workpiece, and the function of the runout radial moving pair is that the runout detection probe 49 needs to be radially adjusted when measuring the runout of the end surface and the runout of the steel shaft, and is realized through the runout radial moving pair; on the other hand, radial adjustment and adaptation can be carried out according to the model and specification of the workpiece. In addition, the runout revolute pair can rotate the runout detection probe 49 thereon by a certain angle, thereby realizing adjustment of the detection direction, and being suitable for detecting the runout of the end face. The jitter detection probe 49 adopts laser detection, and the detection method is the prior art, so details are not described; the laser detects this data when there is an irregularity in the end or radial side of the workpiece. The above-mentioned runout axial shifting pair and runout radial shifting pair are, in this embodiment, a runout axial shifting cylinder 45 and a runout radial shifting cylinder 46, respectively, the runout rotating pair includes a rotating electric machine 47, and a turntable 48 provided on an output shaft of the rotating electric machine, and a runout detecting probe 49 is fixed on the turntable.

The running process of the runout detecting mechanism 4 is as follows: the clamping and transferring mechanism transfers the workpiece to a second detection station, the second movable shaft frame 42 is relatively close to the second fixed shaft frame 41, the motor shaft end of the workpiece is erected on the second fixed shaft frame 41, and the steel shaft end of the workpiece is erected on the second movable shaft frame 42; and screw on the shaft sleeve of the workpiece motor is screwed into the shaft rod through the screw screwing assembly, so that the workpiece is positioned. After the workpiece is positioned, the jumping rotary motor 44 drives the workpiece to rotate, and the running state of the jumping rotary motor 44 is detected by the jumping rotary encoder and transmitted to the motor controller in real time, so that the speed regulation and the start and stop of the motor are realized. Under the cooperative operation of the jumping axial moving pair, the jumping radial moving pair and the jumping rotating pair, the axial length of the workpiece is measured, the end face jumping and the radial jumping of the workpiece are detected, and whether the workpiece is a qualified workpiece is judged based on the detected data. After the detection is completed, the jumping rotary encoder needs to ensure that the screw is right above, the screw assembly unscrews the screw, and the second movable shaft bracket 42 is relatively separated from the second fixed shaft bracket 41. Finally, the clamping and transferring mechanism clamps the workpiece and transfers the workpiece to the dynamic balance detecting mechanism 5 or the jumping waste bin according to the detection result.

Dynamic balance detection mechanism 5

The dynamic balance detection mechanism 5 is used for carrying out dynamic balance detection and verification on the workpiece in a rotating state, carrying out balance block assembly based on dynamic balance detection, carrying out dynamic balance verification on the workpiece assembled by the balance block, and placing the workpiece into a balance waste box through the clamping and conveying mechanism when the workpiece still fails to be corrected after multiple times of balance block assembly and dynamic balance verification. Specifically, the dynamic balance detecting mechanism 5 includes a third fixed shaft bracket 51 and a third movable shaft bracket 52 that are disposed on the frame 1, the third fixed shaft bracket 51 is fixed on the frame 1, the third movable shaft bracket 52 is disposed on the frame 1 in a linear direction, and the third movable shaft bracket 52 is close to or far from the third fixed shaft bracket 51. The third detection station is formed between the third fixed shaft bracket 51 and the third movable shaft bracket 52, and as with the first movable shaft bracket 32 in the screw detection mechanism 3, many movable embodiments of the third movable shaft bracket 52 moving along the linear direction can be realized, such as some moving pairs applied in the conventional machinery, including the modes of a cylinder moving pair, a screw moving pair, and the like. In the embodiment shown in the drawing, a third sliding rail is arranged on the frame 1, a third movable shaft bracket 52 is movably arranged on the third sliding rail, the third sliding rail adopts a dynamic balance length adaptive electric cylinder 53, the electric cylinder is a modularized product which integrates a servo motor and a screw rod, and the rotary motion of the servo motor is converted into linear motion, so that the linear motion of the third movable shaft bracket 52 is realized. When the clamp transfer mechanism transfers the workpiece to the third inspection station, the third movable pedestal 52 is relatively close to the third fixed pedestal 51, the motor shaft end of the workpiece is positioned on the third fixed pedestal 51, and the steel shaft end of the workpiece is positioned on the third movable pedestal 52. In the mechanism, the third movable shaft bracket 52 is only used for erecting a steel shaft of a workpiece and only needs to pass through a bearing or a bracket, and the third fixed shaft bracket 51 is not only required to position a motor shaft sleeve of the workpiece, but also is required to be provided with a dynamic balance rotating motor to drive the workpiece to rotate; specifically, the third fixed shaft bracket 51 is provided with a shaft rod which is arranged in the shaft sleeve at the shaft end of the workpiece motor in a penetrating way, so that the workpiece is positioned; and further, in order to realize circumferential linkage of the shaft rod and the workpiece, the shaft rod and the workpiece need to be positioned. In this embodiment, a set of screw screwing assemblies is further disposed on the frame 1, and is used for screwing screws on the motor shaft sleeve of the workpiece, and screwing the shaft rod and the motor shaft sleeve, so that circumferential linkage of the shaft rod and the workpiece is achieved. When the workpiece rotating device works, the output end of the dynamic balance rotating motor drives the workpiece to rotate through the shaft lever; as shown in the figure, a dynamic balance rotating motor is under the table top of the frame 1, and a dynamic balance rotating motor 54 is linked with a shaft lever by a belt. The output end of the dynamic balance rotary motor 54 is also linked with a dynamic balance rotary encoder, the rotating shaft of the dynamic balance rotary encoder is linked with the shaft lever, and the dynamic balance rotary encoder transmits the running state of the dynamic balance rotary motor 54 to the motor controller in real time, so that the speed regulation and start-stop of the motor are realized.

The third fixed shaft bracket 51 and the third movable shaft bracket 52 in the above scheme are both provided with a displacement speed sensor 56, the displacement speed sensor 56 is used for detecting dynamic balance data of a workpiece, the displacement speed sensor 56 is used for sensing displacement and speed of a detected object or an operating member in operation control, then the displacement and speed of grid movement between the optical signal emitter and the optical signal receiver are changed according to signals of the displacement and speed, so that the optical signal receiver receives intermittent optical signals, the intermittent optical signals are converted into electric signals, and the electric signals are transmitted to a microprocessor for processing judgment, thereby obtaining displacement and speed information. In the scheme, a steel shaft and a motor shaft sleeve of a workpiece are respectively erected on a third movable shaft bracket 52 and a third fixed shaft bracket 51, as shown in the figure, sensor assembly openings are formed in the third movable shaft bracket 52 and the third fixed shaft bracket 51, a displacement speed sensor 56 is arranged in the sensor assembly openings in an interference mode, sensing components are arranged in the third movable shaft bracket 52 and the third fixed shaft bracket 51 and are abutted against the steel shaft and the motor shaft sleeve of the workpiece, and the displacement speed sensor 56 obtains dynamic balance data of two ends of the workpiece by means of the sensing components.

The operation process of the dynamic balance detecting mechanism 5 is as follows: the clamping and transferring mechanism transfers the workpiece to a third detection station, a third movable shaft bracket 52 is relatively close to a third fixed shaft bracket 51, the motor shaft end of the workpiece is erected on the third fixed shaft bracket 51, and the steel shaft end of the workpiece is erected on the third movable shaft bracket 52; and screw on the shaft sleeve of the workpiece motor is screwed into the shaft rod through the screw screwing assembly, so that the workpiece is positioned. After the workpiece is positioned, the workpiece is driven to rotate by the dynamic balance rotating motor 54, and the running state of the dynamic balance rotating motor 54 detected by the dynamic balance rotating encoder is transmitted to the motor controller in real time, so that the speed regulation and start and stop of the motor are realized. In the process, the displacement speed sensor 56 obtains dynamic balance data of two ends of the workpiece by means of the sensing components, performs balance block assembly based on dynamic balance detection, performs dynamic balance verification on the workpiece after the balance block assembly, and performs multiple times of balance block assembly and dynamic balance verification; for the workpiece which can reach a qualified state, carrying out glue injection treatment on the added balance weight on the blade; for the work pieces still not corrected to the qualified state, the work pieces are put into a 'balanced' waste bin by a clamping and transferring mechanism.

Screw tightening assembly

The screw tightening assembly mentioned in the jump detecting mechanism 4 and the dynamic balance detecting mechanism 5 may be one set of screw tightening assembly separately in the jump detecting mechanism 4 and the dynamic balance detecting mechanism 5, or two mechanisms may share one set of screw tightening assembly. In the embodiment shown in the drawing, the screw screwing assembly only has one group, a transverse moving pair 91 is arranged on the frame 1, the screw screwing assembly is arranged on the transverse moving pair 91, the screw screwing assembly moves between the second detection station and the third detection station through the transverse moving pair 91, the second fixed shaft bracket 41 of the second detection station and the third fixed shaft bracket 51 of the third detection station are ensured to be in the same straight line, and the screw screwing assembly moves to the second detection station or the third detection station as required to screw (comprising screwing and unscrewing). Specifically, the screwing assembly used in this embodiment includes a screwing motor 92, a pressing cylinder 93 for pressing down the screwdriver against the screw, and a screwdriver 94 driven to rotate by the screwing motor.

Balance weight assembly mechanism

The balance weight assembly mechanism 6 calculates based on the dynamic balance detection result, and adds a balance weight to the proper blade position of the workpiece to compensate the workpiece by adopting a weighting method, so as to achieve dynamic balance. Specifically, the balancing weight assembling process needs to be completed under the synergistic effect of the balancing weight assembling mechanism 6 and the dynamic balance detecting mechanism 5, so that the workpiece is still positioned by adopting the third fixed shaft bracket 51 and the third movable shaft bracket 52 in the dynamic balance detecting mechanism 5 in the balancing weight assembling process, and the workpiece is driven to rotate by adopting the dynamic balance rotating motor 54. On the basis, the balance weight assembly mechanism 6 comprises a three-dimensional walking bracket arranged on the frame 1, and a clamping assembly, a blade detection assembly and a glue injection assembly which are arranged on the three-dimensional walking bracket. The three-dimensional walking support is used for walking on the support and carrying out clamping, loading and transporting on the balance weight. The clamping assembly moves to a feeding station of the balance weight through the three-dimensional walking bracket, and then moves to an assembling position of the balance weight through the three-dimensional walking bracket. The blade detection assembly includes a blade probe 64, and the blade probe 64 uses laser detection to find the blade position of the required blade, which is a conventional technique in the art and is not described in detail. The clamping assembly is used for clamping the balance weight and comprises a clamping piece rotating motor 65 and a clamping piece air cylinder 66 arranged at the output end of the clamping piece rotating motor 65, and two clamping arms arranged on the clamping piece air cylinder 66 can be relatively close to or far away from each other so as to clamp or release the balance weight; the clamping piece rotating motor 65 is used for driving the clamping piece air cylinder 66 and the clamping arm 67 on the clamping piece air cylinder to rotate by an angle, so that the assembly angle of the balance weight is adjusted; in addition, the output end of the clamping piece rotating motor 65 is also linked with a clamping piece position encoder, and the clamping piece position encoder transmits the running state of the clamping piece rotating motor 65 to the motor controller in real time, so that the speed regulation and start-stop of the motor are realized. The glue injection assembly comprises a glue injection angle adjusting pair, and a glue pipe and a glue gun which are arranged on the glue injection angle adjusting pair, and the glue pipe and the glue gun are external parts, so that the glue pipe and the glue gun are omitted as shown in the figure. The glue injection angle adjusting pair comprises a glue injection angle motor 69 and a glue injection bracket 60 arranged at the output end of the glue injection angle motor 69. The glue injection support 60 is used for fixing a glue gun and a glue pipe, and as shown in the figure, a through hole is arranged in the glue injection support 60 for the glue pipe to pass through.

The three-dimensional walking bracket comprises a walking pair in three directions of an X axis, a Y axis and a Z axis, wherein the X axis is the axial direction of a workpiece, and the scheme adopts an inserting piece axial walking cylinder 61; the Y axis is the radial direction of the workpiece, and the scheme adopts an inserting piece radial positioning electric cylinder 62; the Z axis is the up-down direction of the frame 1, and the present embodiment adopts an up-down positioning electric cylinder 63. The axial positioning electric cylinder 61, the radial positioning electric cylinder 62 and the vertical positioning electric cylinder 63 of the inserting sheet can cooperatively work to realize the movement in the spatial range of the area. The electric cylinder is a modularized product which integrates the servo motor and the screw rod, and converts the rotary motion of the servo motor into linear motion.

The above-mentioned balancing piece assembly process is after the dynamic balance detection process, the balancing piece assembly process is as follows: 1, a three-dimensional walking bracket moves a clamping assembly to a feeding station of a balance block, and the clamping assembly clamps and fixes the balance block; 2, the three-dimensional walking bracket moves the clamping assembly and the balance weight on the clamping assembly to the position above the third detection station; 3, the blade probe 64 adopts laser detection to find the position of the blade needing to be inserted (i.e. find the assembly position of the balance block); 4, the three-dimensional walking bracket moves the clamping assembly and the balance weight on the clamping assembly to the assembly position of the balance weight, a clamping piece rotating motor 65 in the clamping assembly adjusts the angle of the inserting piece, and then the clamping assembly inserts the balance weight at the designated position; 5, if the dynamic balance after adding the balance weight is detected to be qualified, the three-dimensional walking support moves, the output end of the glue injection assembly moves to the assembly position of the balance weight, the glue injection angle adjusting pair in the glue injection assembly carries out glue injection angle, the inserting piece axial position moving electric cylinder 61 in the three-dimensional walking support adjusts the glue injection position, multi-directional glue injection fixation at different angles is realized through multiple adjustment, the balance weight is fixed at a designated position, and the assembly of the balance weight is completed.

Discharging mechanism 8

The discharging mechanism 8 is used for delivering qualified workpieces which are subjected to the screw detection process, the runout detection process, the dynamic balance detection process and the balance weight assembly process, and when in use, the workpieces are transferred into the discharging mechanism 8 by the clamping and transferring mechanism, and the discharging mechanism 8 continuously delivers the workpieces. The fact that the discharge path of the discharge means 8 has a discharge sensor 82 which can detect whether a workpiece has entered is therefore not the only way to realize how the workpiece is transported to the station to be discharged, i.e. the discharge means 8 need only comprise a transport assembly and a discharge sensor arranged in the transport path of the transport assembly, preferably at the end of the transport path. The structure of the specific discharging mechanism 8 does not influence the automatic balancing machine to finish the jump detection, dynamic balance detection and balance block assembly of the workpiece. In this embodiment, there is provided a conveying assembly including a discharge belt 81 positioned on a frame 1 by a plurality of rotating shafts, and a discharge motor driving one of the rotating shafts to rotate; as shown in the figures, the discharge belts may be a plurality of narrow discharge belts, with gaps between the plurality of discharge belts being provided, and the gaps being less than the axial length of the workpiece. During discharging, the clamping and transferring mechanism places the workpiece on the discharging belt, and the discharging belt conveys the workpiece to a station to be taken. In the process, the discharge sensor 82 detects whether a workpiece enters, if so, the discharge motor is stopped, and a material taking reminding alarm is sent out.

Clamping and transferring mechanism

The clamping and transferring mechanism is used for transferring workpieces among the feeding mechanism 2, the screw detecting mechanism 3, the runout detecting mechanism 4, the dynamic balance detecting mechanism 5 and the discharging mechanism 8. The clamping and transferring mechanism needs to move in the three-dimensional direction, so the clamping and transferring mechanism comprises a three-dimensional feeding bracket and a workpiece clamping assembly arranged on the three-dimensional feeding bracket. Similar to the three-dimensional walking support in the balance block assembly mechanism 6, the three-dimensional feeding support also comprises a walking pair in three directions of an X axis, a Y axis and a Z axis, wherein the X axis is the axial direction of a workpiece, and the scheme adopts a gantry X axis electric cylinder 95; the Y axis is the radial direction of the workpiece, and the gantry Y axis electric cylinder 96 is adopted in the scheme; the Z axis is the up-down direction of the frame 1, and the gantry Z axis electric cylinder 97 is adopted in the scheme. The gantry X-axis electric cylinder, the gantry Y-axis electric cylinder and the gantry Z-axis electric cylinder work cooperatively to realize the movement in the spatial range of the area and the workpiece carrying. The electric cylinder is a modularized product which integrates the servo motor and the screw rod, and converts the rotary motion of the servo motor into linear motion. The workpiece clamping assembly comprises a workpiece clamping frame 98 arranged on the gantry Z-axis electric cylinder and a workpiece clamping cylinder 99 arranged on the workpiece clamping frame 98; because the balance requirements on the two ends of the workpiece are high in the screw detection process, the runout detection process and the dynamic balance detection process, the two axial ends of the workpiece need to be positioned when the workpiece is clamped and conveyed, and the balance of the workpiece is kept. Therefore, the workpiece clamping frame 98 is axially arranged along the workpiece and comprises a fixed end and a movable end which are respectively used for positioning two axial end parts of the workpiece, the movable end is movably arranged on the workpiece clamping frame 98, a workpiece clamping cylinder 99 is arranged on the workpiece clamping frame 98 and is connected with the movable end, and the workpiece clamping cylinder 99 controls the movable end to be close to or far from the fixed end so as to clamp or put down the workpiece; the three-dimensional feeding support can realize workpiece transfer among the first detection station, the second detection station, the third detection station and the loading and unloading stations.

Balance weight production mechanism 7

The automatic balancing machine can fully automatically complete a feeding process, a screw detecting process, a jumping detecting process, a dynamic balance detecting process, a balancing block assembling process and a discharging process, and can fully automatically detect and remove unqualified workpieces in the screw detecting process, the jumping detecting process and the dynamic balance detecting process, so that the balance of the workpieces can be fully automatically detected and adjusted. In the above scheme, the counterweight obtained in the counterweight assembly process is used as a fitting in a counterweight loading station of an automatic balancer, in which case the counterweight is already finished by external processing, and the automatic balancer is only used for fixing the counterweight at a blade position where an insert is required. In yet another embodiment, the automatic balancing machine further comprises a weight production mechanism 7, and the weight production mechanism 7 is used for producing weights required in the weight assembly process. Specifically, the weight producing mechanism 7 in the present embodiment includes a take-up reel 71 provided on the frame 1, and a drawing assembly for drawing out a weight belt from the take-up reel 71, and a punching assembly for punching out the weight belt to obtain a weight. The traction assembly comprises a traction frame 72, the traction frame 72 comprises a fixed frame body 721 and a movable frame body 722, the movable frame body 722 can reciprocate along the conveying direction of the balance lump material belt relative to the fixed frame body 721, the fixed frame body 721 and the movable frame body 722 are both provided with traction channels which are horizontally arranged and communicated, the fixed frame body 721 is provided with a feeding compression cylinder 73, the output end of the feeding compression cylinder 73 faces the traction channel in the fixed frame body 721, the movable frame body 722 is provided with an electric cylinder return pressure cylinder 74, and the output end of the electric cylinder return pressure cylinder 74 faces the traction channel in the movable frame body 722. In addition, in order to enable the balancing strip to be fed into the traction channel in a horizontal direction, the traction assembly in this solution also comprises a guide wheel 75 arranged upstream of the traction frame 72, the guide wheel 75 being intended to guide the horizontal feeding of the balancing strip. When the traction assembly works, the electric cylinder back-running pressing cylinder 74 and the feeding pressing cylinder 73 alternately press and fix the balance lump material belt, and the movable frame 722 is driven by the electric cylinder back-running pressing cylinder 74 to reciprocate relative to the fixed frame 721 along the conveying direction of the balance lump material belt, so that the balance lump material belt is conveyed forwards. If the feeding pressing cylinder 73 is loosened when the electric cylinder back feeding pressing cylinder 74 presses the balance lump material belt, the electric cylinder back feeding pressing cylinder 74 drives the movable frame 722 to move forward along the conveying direction for a certain distance; Then, the feeding and pressing cylinder 73 presses the balancing lump material belt, the electric cylinder return feeding and pressing cylinder 74 is loosened, and the movable frame 722 returns a distance away from the conveying direction, so that the pressing balancing lump material belt is prevented from being pulled back. In addition, the balance weight is obtained by adopting repeated stamping in the production process; the punching assembly in this embodiment therefore comprises a punching support 76, and a punching cylinder 77 provided on the punching support 76, and a die moving pair provided below the punching support 76, and a plurality of sets of punching dies 79 provided on the die moving pair; the moving direction of the die moving pair is perpendicular to the conveying direction of the balance lump material belt, when the die moving pair is transferred, a plurality of groups of stamping dies can be sequentially brought into the output position of the stamping cylinder 77, the balance lump material is obtained through the sequential stamping of the plurality of groups of stamping dies, the formed balance lump material belt is cut off by the last group of stamping dies except the final stamping forming, and after the balance lump material belt is completed, the die moving pair resets to wait for the next stamping; And the balance weight obtained by carrying the last group of stamping dies is reset at the moment, and the clamping assembly in the balance weight assembly process clamps the balance weight at the position for assembly. In this scheme, the die moving pair adopts a die running cylinder 78, and is provided with 5 sets of stamping dies, namely, required balance blocks are required to be obtained through 5 times of stamping. The automatic balancing machine with the balancing weight production mechanism 7 also concentrates the balancing weight production in the automatic balancing procedure, so that the automation degree of the equipment is higher. In addition, the weight of the balance weight can be calculated and determined according to the data detected by dynamic balance to die-cut the balance weight, and compared with the traditional method, the weight of the existing balance weight is limited in a plurality of specifications, and the weight of the balance weight can be accurately provided by online production. In particular embodiments, the travel distance of the balancing block belt driven by the electric cylinder walk-back cylinder 74 is calculated from data detected by dynamic balancing. Since the width and the thickness of the balancing lump material belts are determined, the feeding length of the balancing lump material belts is calculated according to dynamic balance, and the balancing blocks with different lengths and with the compensation of the adaptive offset can be produced on line.

Example 2:

The embodiment provides a dynamic balance compensation processing method of a cross-flow fan blade based on the automatic balancing machine provided in the embodiment 1; the method comprises the following steps:

Step 1, feeding;

1.1, manually placing a workpiece on a conveying belt, and conveying the workpiece to a station to be fed by the conveying belt; in the process, a material sensor detects whether a workpiece enters a station to be loaded; if no material is detected, the feeding motor continues to operate feeding; if the feeding is detected, stopping the feeding motor and waiting for the clamping and transferring mechanism to clamp the workpiece in the station to be fed into the screw detection station;

step 2, detecting screws;

2.1, the workpiece is transferred to a first detection station by the clamping and transferring mechanism, the first movable shaft bracket is relatively close to the first fixed shaft bracket, the motor shaft end of the workpiece is erected on the first fixed shaft bracket, and the steel shaft end of the workpiece is erected on the first movable shaft bracket to realize the positioning of the workpiece;

2.2; after the positioning is finished, the first detection motor drives the workpiece to rotate for one circle; in the process, a screw detection probe detects whether a motor shaft end frame of a workpiece is provided with a screw in a rotating mode, if the screw is detected, a first detection motor is stopped immediately, the workpiece is positioned, and the screw detection probe is opposite to the screw; if no screw is detected, the workpiece is identified as "missing screw" scrap;

2.3; the clamping and transferring mechanism clamps the workpiece, and the first movable shaft bracket is withdrawn and reset; based on the detection result of 2.2, the clamping and transferring mechanism transfers the workpiece to the jumping detection mechanism or the screw missing waste bin.

Step 3, jumping detection;

3.1, transferring the qualified workpiece detected by the screw to a second detection station by a clamping and transferring mechanism, wherein the second movable shaft bracket is relatively close to the second fixed shaft bracket, the motor shaft end of the workpiece is erected on the second fixed shaft bracket, and the steel shaft end of the workpiece is erected on the second movable shaft bracket; the screw on the shaft sleeve of the workpiece motor is screwed into the shaft rod through the screw screwing assembly, so that the workpiece is positioned;

3.2; after the workpiece is positioned, the jumping rotary motor drives the workpiece to rotate, and the running state of the jumping rotary motor is detected by the jumping rotary encoder and is transmitted to the motor controller in real time, so that the speed regulation and the start and stop of the motor are realized; under the cooperative operation of the jumping axial moving pair, the jumping radial moving pair and the jumping rotating pair, measuring the axial length of the workpiece, detecting the end face jumping and the radial jumping of the workpiece, and judging whether the workpiece is a qualified workpiece or not based on the detected data;

3.2; after detection is completed, the jumping rotary encoder needs to ensure that the screw is right above, the screw assembly unscrews the screw, and the second movable shaft bracket is relatively separated from the second fixed shaft bracket; meanwhile, the clamping and transferring mechanism clamps the workpiece and transfers the workpiece to the dynamic balance detecting mechanism or the jumping waste bin according to the detecting result of 3.2.

Step 4: dynamic balance compensation;

4.1, transferring the qualified products of the jumping detection to a third detection station by a clamping and transferring mechanism, wherein the third movable shaft bracket is relatively close to the third fixed shaft bracket, the motor shaft end of the workpiece is erected on the third fixed shaft bracket, and the steel shaft end of the workpiece is erected on the third movable shaft bracket; the screw on the shaft sleeve of the workpiece motor is screwed into the shaft rod through the screw screwing assembly, so that the workpiece is positioned;

4.2, after the workpiece is positioned, the workpiece is driven to rotate by a dynamic balance rotating motor, and in the process, the displacement speed sensor detects dynamic balance data of the workpiece by means of the sensing component;

4.3, controlling the length of the balancing lump material belt entering the die by an electric cylinder back-moving pressing cylinder in the balancing lump material production mechanism based on dynamic balance data in the previous step, and obtaining a balancing lump material with adaptive offset compensation through multiple stamping;

4.4, clamping the balance weight obtained in 4.3 by the clamping assembly in the balance weight assembly mechanism, and moving the clamping assembly and the balance weight thereon to the position above the third detection station by the three-dimensional walking bracket;

4.5, the blade probe adopts laser detection to find the position of the blade needing to be inserted (namely, find the assembly position of the balance weight); the three-dimensional walking bracket moves the clamping assembly and the balance block on the clamping assembly to the assembly position of the balance block, the clamping piece rotating motor in the clamping assembly adjusts the angle of the inserting piece, and the clamping assembly inserts the balance block at the appointed position;

4.6, the dynamic balance rotating motor drives the workpiece to rotate, the displacement speed sensor detects dynamic balance data of two ends of the workpiece through the sensing component, and the displacement speed sensor compares the dynamic balance data with the reference data to judge whether the workpiece reaches a dynamic balance qualified state; based on the detection result, if the detection result is a dynamic balance qualified workpiece, 4.8 is executed; if the detection result is that the dynamic balance is unqualified, repeating 4.3-4.6; the detection result is that the workpiece with unqualified dynamic balance is still obtained after repeated execution for a plurality of times, and then 4.7 is directly executed;

4.7, ensuring that the screw is right above the dynamic balance rotary encoder, unscrewing the screw by the screw assembly, and enabling the third movable shaft bracket to relatively leave the third fixed shaft bracket; simultaneously, the clamping and transferring mechanism clamps the workpiece and puts the workpiece into a 'balanced' waste bin;

4.8, moving the three-dimensional walking bracket, moving the output end of the glue injection assembly to the assembly position of the balance block, performing glue injection angle by a glue injection angle adjusting pair in the glue injection assembly, adjusting the glue injection position by an inserting sheet axial position moving electric cylinder in the three-dimensional walking bracket, realizing multi-directional glue injection fixation of different angles through multiple times of adjustment, and fixing the balance block at a designated position;

4.9, ensuring that the screw is right above the dynamic balance rotary encoder, unscrewing the screw by the screw assembly, and enabling the third movable shaft bracket to relatively leave the third fixed shaft bracket; simultaneously, the clamping and transferring mechanism clamps the workpiece and puts the workpiece on the discharging mechanism;

Step 5: discharging;

5.1, the clamping and transferring mechanism transfers the workpiece to a discharging belt, and the discharging belt conveys the workpiece to a station to be extracted; in the process, a discharging sensor detects whether a workpiece enters, if so, a discharging motor is stopped, and a material taking reminding alarm is sent out; and if not, continuing discharging.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.

Claims (5)

1. The jump detection mechanism comprises a second fixed shaft bracket, a second movable shaft bracket and a jump detection assembly which are arranged on a frame; the second movable shaft bracket is close to or far away from the second fixed shaft bracket, and a second detection station is formed between the second fixed shaft bracket and the second movable shaft bracket; the motor shaft end of the workpiece is positioned on a second fixed shaft bracket, the steel shaft end of the workpiece is positioned on a second movable shaft bracket, and the second fixed shaft bracket is provided with a jumping rotating motor to drive the workpiece to rotate; the method is characterized in that: the runout detection assembly comprises a runout axial moving pair, a runout radial moving pair arranged on the runout axial moving pair, a runout rotating pair arranged on the runout radial moving pair, a runout detection probe arranged on the runout rotating pair and a runout sensor;

The jumping axial moving pair can move along the axial direction of the workpiece, and the axial length of the workpiece can be measured in the moving process; in the process that the runout axial moving pair drives the runout detection probe to axially move, the runout detection probe can detect radial runout of each measuring point of the workpiece; the runout radial moving pair can move along the radial direction of the workpiece and is used for radial adjustment when measuring end face runout and steel shaft runout; the jumping axial moving pair and the jumping radial moving pair are respectively a jumping axial displacement electric cylinder and a jumping radial displacement electric cylinder; the runout rotating pair comprises a rotating motor and a turntable arranged on an output shaft of the rotating motor, a runout detection probe is fixed on the turntable, and the runout rotating pair can enable the runout detection probe on the runout rotating pair to rotate for a certain angle, so that the detection direction is adjusted, and the runout detecting pair is suitable for detecting runout of an end face;

The frame is provided with a second sliding rail, the second movable shaft bracket is movably arranged on the second sliding rail, and the second sliding rail is provided with a jumping length adaptive electric cylinder.

2. A runout detection mechanism according to claim 1, wherein: the second movable shaft bracket is provided with two groups of rollers or bearings for combined positioning of the steel shaft, the steel shaft is positioned between the two groups of rollers or bearings, and at least the side wall of the steel shaft is exposed.

3. A runout detection mechanism according to claim 1, wherein: the screw driving device is characterized in that a screw driving assembly is arranged on the frame and comprises a screw driving motor, a pressing cylinder and a screw driver, wherein the pressing cylinder is used for pressing the screw driver down to prop against the screw, and the screw driving motor drives the screw driver to rotate.

4. A runout detection mechanism according to claim 1, wherein: and the output end of the jumping rotary motor is also linked with a jumping rotary encoder, and the jumping rotary encoder transmits the running state of the jumping rotary motor to the motor controller in real time, so that the speed regulation and the start and stop of the motor are realized.

5. An automatic balancing machine, characterized in that: comprising a runout detection mechanism according to any one of claims 1-4.