CN209918642U - Automatic balancing machine and balance block production and assembly mechanism thereof - Google Patents

Abstract

The utility model relates to a through-flow fan blade field especially relates to an automatic balancing machine and balancing piece production and assembly devices thereof. A balance sheet production and assembly mechanism comprises a rack, and a balance sheet production mechanism, a dynamic balance detection mechanism and a balance sheet assembly mechanism which are arranged on the rack; this balancing piece production and assembly devices can automize and carry out the dynamic balance and detect to according to the dynamic balance testing result assembly balancing piece, being equipped with the production mechanism of balancing piece simultaneously, the balancing piece of the adaptation offset compensation of different length of can on-line production simplifies balancing piece assembly process greatly, raises the efficiency and balancing piece assembly precision.

Description

Automatic balancing machine and balance block production and assembly mechanism thereof

Technical Field

The utility model relates to a through-flow fan blade field especially relates to an automatic balancing machine and balancing piece production and assembly devices thereof.

Background

The cross-flow fan blade is one of important accessories in an air conditioner and is formed by connecting and processing a plurality of middle sections, each middle section is formed by integrally injecting a circular middle disc and a plurality of blades, the rear end of each blade is 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 next middle section is inserted into the blade mounting groove of the previous middle section.

According to relevant statistics, the total output of the air conditioners in 2015 of China is 1.5 hundred million, and the air conditioners are the first air conditioner in the world and are exported to a large country. The cross-flow fan blade has the advantages of large air quantity, stable air supply, low noise and the like, is an important component of an indoor air-conditioning 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 plastics, and the main production processes comprise: batching, injection molding, welding (generally ultrasonic welding) and dynamic balance processing, wherein the main sources of unbalance of the cross-flow fan blade comprise: 1) unbalance amount generated in the injection molding process: due to uneven shrinkage of the plastic, mold tolerances, etc.; 2) unbalance amount generated in the welding process: due to alignment error, ultrasonic bias welding, weld overflow, etc. In the actual production process, the maximum unbalance amount of a single surface of the 9-section through-flow fan blade can reach 50 g.mm.

In the traditional method, the main processes of the dynamic balance treatment of the cross-flow fan blade comprise: measuring the unbalance amount of the through-flow fan blade by adopting an unbalance amount acquisition system, manually clamping a metal balance block on a corresponding phase position of the end face according to the equivalent unbalance amount of the end face calculated by the control system, then pasting and fixing the metal balance block by using glue, and carrying out unbalance amount acquisition test again, wherein if the unbalance amount exceeding the requirement exists, the unbalance amount needs to be corrected again; generally, manual dynamic balance processing of the cross-flow fan blade can be completed only by collecting unbalance and pasting balance blocks for 2-3 times, and the minimum residual unbalance of the cross-flow fan blade is about 10-12 g.mm during the manual dynamic balance processing, so that serious problems of unbalance air supply, noise, damage to the blade and the like of the cross-flow fan blade can be caused.

The chinese utility model patent document with publication number "CN 203385513U" discloses a be used for unbalanced measuring dynamic unbalance machine, including the host computer organism, left side supporting mechanism, right side supporting mechanism, the quantity sensor, the phase sensor, judge sensor and count sensor, wherein, left and right supporting mechanism's lateral part respectively is provided with one, be provided with the count sensor on the left vibration rocker in the left side supporting mechanism, be provided with the judgement sensor on the right vibration rocker of right side supporting mechanism, and be provided with the phase sensor relative with the judgement sensor on the right side supporting mechanism, in use, the quantity sensor, the phase sensor is to being measured the part dynamic unbalance quantity, phase signal detects, judge the sensor, the count sensor detects being measured the part getting on and off the plane, and add up to the quantity of qualification part. The prior patent proposal can only identify the unbalanced and out-of-tolerance workpiece and can not compensate the dynamic balance of the workpiece.

A dynamic balancing machine for detecting a through-flow fan blade is disclosed in a Chinese utility model patent document with the publication number of CN 202676372U. The dynamic balancing machine for detecting the unbalance position of the cross-flow fan blade comprises a rack, a display, a controller, two groups of clamps for axially clamping the cross-flow fan blade and an index plate for driving the cross-flow fan blade to rotate, wherein the two groups of clamps and the display are arranged on the rack, 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 support and an indicating lamp emitting light of a surface light source, a light outlet of the indicating lamp emitting light of the surface light source faces downwards, and the indicating lamp emitting light of the surface light source is connected with the controller through a connecting wire. The dynamic balancing machine for detecting the unbalance position of the through-flow fan blade has the advantages of novel structure and high unbalance position weighting accuracy and weighting efficiency. According to the patent scheme, only the unbalance position of the cross-flow fan blade can be checked, and manual or other equipment is still needed to cooperatively assemble the balance weight.

The Chinese utility model patent with publication number "CN 205614771U" discloses an automatic dynamic balancing machine for double-station multi-hole drilling through-flow fan blades, which comprises a sliding table guide rail, a first rotary support, a second rotary support, a first drilling and weight-removing device and a second drilling and weight-removing device; the first drilling and weight removing device is provided with a first drilling mechanism and a first end face jacking mechanism, the second drilling and weight removing device is provided with a second drilling mechanism and a second end face jacking mechanism, and in work, the first drilling mechanism and the second end face jacking mechanism respectively act on two ends of the through-flow fan blade at the same time, or the second drilling mechanism and the first end face jacking mechanism respectively act on two ends of the through-flow fan blade at the same time. The utility model discloses there is following beneficial effect: 1) reducing the minimum residual unbalance of the cross-flow fan blade; 2) the dynamic balance processing efficiency is improved; 3) and automation is easy to realize. In the technical scheme, the dynamic balance processing of the through-flow fan blade is realized by adopting a numerical control technology drilling and weight removal mode to replace the traditional manual balance block pasting mode, the precision of numerical control drilling is far higher than that of the manual balance block pasting mode, and the minimum residual unbalance can reach 1-2 g.mm; but 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 plans to apply for an automatic balancing machine, and can realize the procedures of jumping detection, dynamic balance detection, balancing block assembly and the like of the cross-flow fan blade. Among the patent technologies explained above, patent documents with publication numbers "CN 203385513U" and "CN 202676372U" have only a dynamic balance detection structure, and no dynamic balance compensation processing structure; patent publication No. CN205614771U discloses a drilling and de-weighting type dynamic balance compensation processing structure, but it has drawbacks. Based on the traditional scheme, the metal balance blocks are manually clamped on corresponding phases of the end faces; the scheme relates to an automatic balancing machine and a balance block production and assembly mechanism thereof, and can realize dynamic balance detection and balance block assembly procedures automatically and mechanically.

Disclosure of Invention

In order to solve the problem, the utility model discloses a first aim at provides a balancing piece production and assembly devices, above-mentioned balancing piece production and assembly devices can automize and carry out the dynamic balance and detect to according to the dynamic balance testing result assembly balancing piece, the production mechanism of balancing piece has been equipped with simultaneously, the balancing piece of the adaptation offset compensation of different length of can the on-line production simplifies balancing piece assembly process greatly, raises the efficiency and the balancing piece assembly precision. A second object of the present invention is to provide an automatic balancing machine, which has the above-mentioned balance block producing and assembling mechanism. A third object of the present invention is to provide a dynamic balance compensation method, which is based on the above balance block production and assembly mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a balancing piece production and assembly devices which characterized in that: the balance weight assembly device comprises a rack, and a balance weight production mechanism, a dynamic balance detection mechanism and a balance weight assembly mechanism which are arranged on the rack; the balance block production mechanism comprises a material tape disc arranged on the rack, a traction assembly used for leading out a balance block material tape from the material tape disc, and a stamping assembly used for stamping the balance block material tape to obtain a balance block; the dynamic balance detection mechanism comprises a third fixed shaft bracket and a third movable shaft bracket which are arranged on the rack, a third detection station is formed between the third fixed shaft bracket and the third movable shaft bracket, the motor shaft end of the workpiece is positioned on the third fixed shaft bracket, the steel shaft end of the workpiece is positioned on the third movable shaft bracket, and a dynamic balance rotating motor is arranged on the third fixed shaft bracket to drive the workpiece to rotate; the balance block assembling mechanism comprises a three-dimensional walking bracket arranged on the rack, and a clamping assembly, a blade detecting assembly and a glue injection assembly which are arranged on the three-dimensional walking bracket.

Preferably, the third fixed shaft bracket is fixed on the rack, and the third movable shaft bracket is close to or far away from the third fixed shaft bracket; the third movable shaft bracket and the third fixed shaft bracket are respectively provided with a sensor assembly port, the displacement speed sensor is arranged in the sensor assembly ports in an interference mode, a sensing part is arranged in the third movable shaft bracket and the third fixed shaft bracket and abuts against a steel shaft and a motor shaft sleeve of the workpiece, and the displacement speed sensor obtains dynamic balance data of two ends of the workpiece by means of the sensing part.

Preferably, the dynamic balance rotating motor is positioned below the table top of the frame and is linked with the shaft lever through a belt; the output end of the dynamic balance rotating motor is also linked with a dynamic balance rotating encoder, a rotating shaft of the dynamic balance rotating encoder is linked with a shaft lever, and the dynamic balance rotating encoder transmits the running state of the dynamic balance rotating motor to a motor controller in real time to realize speed regulation and start and stop of the motor.

Preferably, the clamping assembly comprises a clamping piece rotating motor and a clamping piece cylinder arranged on the output end of the clamping piece rotating motor, and two clamping arms which can be relatively close to or far away from each other are arranged on the clamping piece cylinder to clamp or release the balance block; the clamping piece rotating motor is used for driving the clamping piece cylinder and the clamping arm on the clamping piece cylinder to rotate by an angle, so that the assembly angle of the balance block is adjusted; the glue injection assembly comprises a glue injection angle adjusting pair, and a glue tube and a glue gun which are arranged on the glue injection angle adjusting pair; the glue injection angle adjusting pair comprises a glue injection angle motor and a glue injection bracket arranged on the output end of the glue injection angle motor; a through hole is formed in the glue injection support and is used for the glue tube to pass through.

Preferably, the output end of the clamping piece rotating motor is further linked with a clamping piece position encoder, and the clamping piece position encoder transmits the running state of the clamping piece rotating motor to the motor controller in real time to realize speed regulation and start and stop of the motor.

Preferably, the three-dimensional walking support comprises walking pairs in three directions of an X axis, a Y axis and a Z axis, the X axis is the axial direction of the workpiece, and the walking pair of the X axis adopts an insert axial walking electric cylinder; the Y axis is the radial direction of the workpiece, and the traveling pair of the Y axis adopts an insert radial traveling electric cylinder; the Z axis is the up-down direction of the frame, and the walking pair of the Z axis adopts an up-down walking electric cylinder.

Preferably, the stamping assembly comprises a stamping bracket, a stamping cylinder arranged on the stamping bracket, a die moving pair arranged below the stamping bracket, and a plurality of groups of stamping dies arranged on the die moving pair; the moving direction of the die moving pair is perpendicular to the conveying direction of the balance block 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, and the balance blocks are obtained through sequential stamping of the plurality of groups of stamping dies.

Preferably, the traction assembly comprises a traction frame, the traction frame comprises a fixed frame body and a movable frame body, the movable frame body can reciprocate relative to the fixed frame body along the conveying direction of the balance block material belt, traction channels which are horizontally arranged and communicated are arranged on the fixed frame body and the movable frame body, a feeding compaction cylinder is arranged on the fixed frame body, the output end of the feeding compaction cylinder faces the traction channel in the fixed frame body, an electric cylinder return pressure cylinder is arranged on the movable frame body, and the output end of the electric cylinder return pressure cylinder faces the traction channel in the movable frame body; the electric cylinder return pressure cylinder and the material feeding compaction cylinder alternately compact and fix the balance block material belt, and the balance block material belt is conveyed forwards through the reciprocating movement of the movable frame body relative to the fixed frame body along the conveying direction of the balance block material belt; the traction assembly further comprises a guide wheel arranged at the upper stream of the traction frame, and the guide wheel is used for guiding the balance block material belt to horizontally feed

An automatic balancing machine, characterized by: comprising a counterweight producing and assembling mechanism as described in any one of the above.

A dynamic balance compensation method is characterized in that: the method comprises the following steps:

4.1, transferring the workpiece to a third detection station by a clamping and transferring mechanism for the product qualified in the jumping detection, erecting a motor shaft end of the workpiece on a third fixed shaft bracket, and erecting a steel shaft end of the workpiece on a third movable shaft bracket to realize the positioning of the workpiece;

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

4.3, based on the dynamic balance data in the preorder step, an electric cylinder in the balance block production mechanism returns a pressure cylinder to control the length of the balance block material belt entering the die, and the balance block with adaptive offset compensation is obtained through multiple times of stamping;

4.4, clamping the balance block obtained in the step 4.3 by a clamping assembly in the balance block assembling mechanism, and moving the balance block to the position above a third detection station;

4.5, the blade probe finds the position of the blade needing to be inserted by adopting laser detection, the clamping assembly and the balance block on the clamping assembly move to the balance block assembly position, and the balance block is inserted at the designated position;

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

4.7, clamping the workpiece by the clamping and transferring mechanism and putting the workpiece into a balance waste box;

4.8, moving the output end of the glue injection assembly to the assembly position of the balance block, and fixing the balance block at the designated position;

and 4.9, clamping the workpiece by the clamping and transferring mechanism and placing the workpiece on the discharging mechanism.

The utility model adopts the technical scheme, which relates to a balance block producing and assembling mechanism and an automatic balancing machine with the balance block producing and assembling mechanism; and a dynamic balance compensation method corresponding to the balance block production and assembly mechanism. The balance block production and assembly mechanism comprises a balance block production mechanism, a dynamic balance detection mechanism and a balance block assembly mechanism. The third fixed shaft bracket and the third movable shaft bracket in the dynamic balance detection mechanism are used for positioning a workpiece, the dynamic balance rotating motor is used for driving the workpiece to rotate, and the displacement speed sensor is used for detecting dynamic balance data of the workpiece; assembling balance blocks based on dynamic balance detection, performing dynamic balance check on the workpiece after the balance blocks are assembled, and performing balance block assembly and dynamic balance check for multiple times; and for the workpiece which can reach a qualified state, the added balance blocks on the blades are subjected to glue injection treatment. The three-dimensional walking bracket in the balance block assembling mechanism is used for providing spatial movement in the balance block clamping, carrying and assembling processes; the blade detection assembly adopts laser detection to find the position of the blade needing the insertion piece, the clamping assembly is used for clamping or releasing the balance block, and the glue injection assembly is used for adjusting the glue injection angle to realize multi-angle gluing fixation. In the balance block production mechanism, when the mold moving pair is transferred, a plurality of groups of stamping molds can be sequentially brought into the output position of the stamping cylinder, the balance block is obtained through sequential stamping of the plurality of groups of stamping molds, the last group of stamping molds need to cut off the formed balance block and a balance block material belt besides final stamping forming, and after the balance block is completed, the mold moving pair is reset to wait for the next stamping; and at this moment, the balance block obtained by carrying the last group of stamping dies resets, and the balance block is clamped and taken by the clamping assembly in the balance block assembling procedure and is used for assembling. In addition, the balance weight production mechanism can calculate and determine the weight of the balance weight according to the data detected by dynamic balance so as to punch the balance weight, has the advantages of limited weight specifications compared with the traditional balance weight, and can accurately provide the weight of the balance weight in online production. Above-mentioned balancing piece production and assembly devices can automize and carry out the dynamic balance and detect to according to the dynamic balance testing result assembly balancing piece, being equipped with the production mechanism of balancing piece simultaneously, the balancing piece of the adaptation offset compensation of different length of can on-line production simplifies balancing piece assembly process greatly, raises the efficiency and balancing piece assembly precision.

Drawings

Fig. 1 is a schematic diagram of the whole 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 view of the dynamic balance detecting mechanism.

FIG. 7 is a first schematic structural view of a counterweight assembly mechanism.

FIG. 8 is a second schematic structural view 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 clamping and transferring mechanism.

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

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

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1:

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

The following is a detailed description of each actuator of the automatic balancing machine.

Feeding mechanism 2

The purpose of the feeding mechanism 2 is to convey the workpiece to a specific station to be fed, in which a material sensor 21 capable of detecting whether the workpiece enters or not is provided, 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 assembly and the material sensor 21 arranged in a conveying path (preferably, at the end of the conveying path) of the conveying assembly. The structure of the feeding mechanism 2 does not influence the automatic balancing machine to complete the run-out detection, the dynamic balance detection and the balancing block assembly of the workpiece. In the present embodiment, a conveying assembly is provided, which comprises a conveying belt 22 positioned on the frame 1 by a plurality of rotating shafts, and a feeding motor driving one of the rotating shafts to rotate; as shown in the figure, the conveyor belt can be a plurality of narrow conveyor belts, and the plurality of conveyor belts are arranged with a gap, 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 for feeding; if the material is detected, the feeding motor is stopped to wait for the clamping and transferring mechanism to clamp and transfer away the workpiece to be fed, and then the workpiece enters the next feeding.

Screw detection mechanism 3

The screw detection mechanism 3 is used for detecting whether a screw is assembled on the motor shaft disc end of the workpiece or not, and if the screw is detected, the workpiece is rotated and positioned at a certain angle; if the screw is not detected, the workpiece is determined as the waste material with no screw, and is transferred to a designated waste material box with no screw through the clamping and transferring 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 machine 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. Wherein, first fixed pedestal 31 is fixed setting relative to frame 1, and first movable pedestal 32 can be followed frame 1 and moved along the linear direction, realizes that first movable pedestal 32 is close to or keeps away from relative first fixed pedestal 31, constitutes first detection station between first movable pedestal 32 and the first fixed pedestal 31. There are many possible embodiments for the first movable shaft bracket 32 to move along the linear direction, such as some moving pairs used in conventional machines, including cylinder moving pairs, screw moving pairs, etc. In this embodiment, a first slide rail is provided on the machine frame 1, the first movable shaft bracket 32 is movably disposed on the first slide rail 34, and a feeding homing cylinder is provided, an output end of the cylinder is connected to the first movable shaft bracket 32, and the feeding homing cylinder drives the first movable shaft bracket 32 to move on the first slide 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 rotate synchronously; the connection mode of the output end of the first detection motor 33 and the steel shaft end of the workpiece can adopt a shaft sleeve sleeving mode, and if the output end of the first detection motor 33 is provided with a shaft sleeve, the shaft sleeve can be sleeved with the steel shaft end of the workpiece. In the embodiment shown in the figure, the first movable shaft frame 32 is provided with a clamping part 35, the clamping part 35 may be a clamping pneumatic claw, an output shaft of the first detection motor 33 is connected to the clamping part 35, the clamping part 35 clamps and fixes the shaft end of the workpiece steel, and the first detection motor 33 drives the workpiece to rotate through the clamping part 35. In addition, a shaft sleeve is originally 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 frame 32 provides workpiece rotating power, and the first fixed shaft frame 31 is only used for erecting the other end part of the workpiece, so that the shaft sleeve of which the shaft rod can penetrate through the shaft end of the workpiece motor is arranged on the first fixed shaft frame 31. Whether the screw detection probe 36 that sets up at first fixed pedestal 31 is used for detecting whether the axle sleeve of work piece motor axle head is equipped with the screw, and screw detection probe 36 adopts the principle that laser detected in this embodiment, if can adopt the scheme of laser rangefinder to judge, because whether the data that assembly screw laser rangefinder obtained are different, the concrete principle of laser rangefinder belongs to prior art, can see hundred degrees encyclopedics, the excerption is as follows: the laser diode first emits laser pulses directed 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 is imaged on an avalanche photodiode, which is an optical sensor with an amplification function inside, so that the avalanche photodiode can detect extremely weak optical signals, record and process the time from the emission of the optical pulses to the return reception, and 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 faces downwards vertically; furthermore, in order to adapt to different models and specifications, the first fixed shaft bracket 31 is further provided with a detection moving pair 37, 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 moving pair 37 may be driven by a telescopic cylinder.

The operation process of the screw detection mechanism 3 is as follows: the workpiece is transferred to the first detection station by the clamping and transferring mechanism, 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 positioning of the workpiece is realized. After the positioning is finished, the first detection motor 33 drives the workpiece to rotate for a circle; in the process, the screw detection probe 36 detects whether the motor shaft end frame of the workpiece is matched with a screw, if the screw is detected, the first detection motor 33 is stopped immediately, the workpiece is positioned, and the screw detection probe 36 is opposite to the screw; if no screw is detected, the workpiece is identified as "missing screw" scrap. Finally, the workpiece is clamped by the clamping and transferring mechanism, and the first movable shaft bracket 32 is withdrawn and reset; based on the above detection results, the clamping and transferring mechanism transfers the waste material to the jumping detection mechanism 4 or the waste material box with the screw missing.

Runout detection mechanism 4

The run-out detection mechanism 4 is used for detecting the axial length, end face run-out and radial run-out data of the workpiece, judging whether the workpiece is qualified based on the detected data, and if the detection result is qualified, transferring the workpiece to the dynamic balance detection mechanism 5 by the clamping and transferring mechanism for next detection. If the detected result is unqualified work pieces, the work pieces are transferred to a designated 'jumping' waste bin through the 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 rack 1. 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 a linear direction, and the second movable shaft bracket 42 is close to or far away from the second fixed shaft bracket 41. A second detection station is formed between the second fixed shaft bracket 41 and the second movable shaft bracket 42, and like the first movable shaft bracket 32 in the screw detection mechanism 3, there are many possible embodiments for the second movable shaft bracket 42 to move in the linear direction, such as some moving pairs applied in the conventional machine, including cylinder moving pairs, screw moving pairs, and the like. In the embodiment shown in the figure, a second slide rail is arranged on the machine frame 1, and the second movable shaft bracket 42 is movably arranged on the second slide rail, wherein the second slide rail adopts a jump length adaptive electric cylinder 43, the electric cylinder is a modular product designed by integrating a servo motor and a lead screw, 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 bracket 42 is relatively close to the second fixed shaft bracket 41, the motor shaft end of the workpiece is positioned on the second fixed shaft bracket 41, and the steel shaft end of the workpiece is positioned on the second movable shaft bracket 42. The workpiece detected on the second detection station is subjected to a screw detection process, so that the workpiece inevitably comprises screws; and circumferential linkage is difficult to realize due to the difficulty of fixing the steel shaft of the workpiece. Therefore, in the screw detection mechanism 3, the second movable shaft bracket 42 in the mechanism is only used for erecting the steel shaft of the workpiece and can be used for positioning the steel shaft through a bearing or a bracket. The second fixed shaft bracket 41 is provided with a jumping rotating motor 44 to drive the workpiece to rotate, and specifically, the second fixed shaft bracket 41 is provided with a shaft rod which is arranged in a shaft sleeve at the shaft end of the workpiece motor in a penetrating manner, so that the workpiece is positioned; furthermore, in order to realize the circumferential linkage of the shaft rod and the workpiece, the shaft rod and the workpiece need to be positioned. In this embodiment, still be equipped with a set of screw subassembly of twisting on the frame 1 for screw on the motor shaft sleeve of work piece is twisted, screws up axostylus axostyle and motor shaft sleeve, thereby realizes the circumferential linkage of axostylus axostyle and work piece. When the jumping rotary motor works, the output end of the jumping rotary motor 44 drives the workpiece to rotate through the shaft rod. The output end of the jumping rotating motor 44 is also linked with a jumping rotating encoder, and the jumping rotating encoder transmits the running state of the jumping rotating motor 44 to the motor controller in real time to realize the speed regulation and start and stop of the motor.

The jumping detection assembly comprises a jumping axial moving pair, a jumping radial moving pair arranged on the jumping axial moving pair, a jumping rotating pair arranged on the jumping radial moving pair, a jumping detection probe 49 and a jumping sensor arranged on the jumping rotating pair. 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 jumping axial movement pair drives the jumping detection probe 49 to axially move, the jumping detection probe 49 can detect the radial jumping of each measuring point (the position of each segment of the disc body of the cross-flow fan blade) of the workpiece. The jumping radial moving pair can move along the radial direction of the workpiece, and has two functions, on one hand, when measuring end face jumping and steel shaft jumping, the jumping detection probe 49 needs to be adjusted in the radial direction and is realized through the jumping radial moving pair; on the other hand, the radial adjustment can be carried out according to the model and the specification of the workpiece. In addition, the jumping detection probe 49 on the jumping rotary pair can rotate for a certain angle, so that the detection direction is adjusted, and the jumping rotary pair is suitable for detecting end face jumping. The pulse 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 on the end or radial side of the workpiece. The above-described pair of runout axial movement and runout radial movement are, in the present embodiment, a runout axial displacement electric cylinder 45 and a runout radial displacement electric cylinder 46, respectively, and the runout rotary pair includes a rotary motor 47, and a turntable 48 provided on an output shaft of the rotary motor, to which a runout detecting probe 49 is fixed.

The run-out detection mechanism 4 described above operates as follows: the clamping and transferring mechanism transfers the workpiece to a second detection station, a second movable shaft bracket 42 is relatively close to a second fixed shaft bracket 41, the motor shaft end of the workpiece is erected on the second fixed shaft bracket 41, and the steel shaft end of the workpiece is erected on the second movable shaft bracket 42; and the screw on the workpiece motor shaft sleeve is screwed into the shaft rod through the screw screwing assembly, so that the positioning of the workpiece is realized. After the workpiece is positioned, the jumping rotating motor 44 drives the workpiece to rotate, and the jumping rotating encoder detects the running state of the jumping rotating motor 44 and transmits the running state to the motor controller in real time, so that the speed regulation and the starting and stopping of the motor are realized. Under the cooperative operation of the jumping axial movement pair, the jumping radial movement pair and the jumping rotation 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 positioned right above, the screw assembly unscrews the screw, and the second movable shaft bracket 42 relatively leaves the second fixed shaft bracket 41. And finally, the clamping and conveying mechanism clamps the workpiece and conveys the workpiece to a dynamic balance detection mechanism 5 or a 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 the dynamic balance detection, carrying out dynamic balance verification on the workpiece after the balance block assembly, and putting the workpiece into a balance waste box through the clamping and conveying mechanism when the qualified state cannot be corrected after multiple times of balance block assembly and dynamic balance verification. Specifically, the dynamic balance detection mechanism 5 includes a third fixed shaft bracket 51 and a third movable shaft bracket 52 that are provided on the frame 1, the third fixed shaft bracket 51 is fixed on the frame 1, the third movable shaft bracket 52 is provided on the frame 1 to move in a linear direction, and the third movable shaft bracket 52 is close to or away from the third fixed shaft bracket 51. A third detection station is formed between the third fixed shaft bracket 51 and the third movable shaft bracket 52, and like the first movable shaft bracket 32 in the screw detection mechanism 3, there are many possible embodiments for the third movable shaft bracket 52 to move in the linear direction, such as some moving pairs applied in the conventional machine, including cylinder moving pairs, screw moving pairs, and the like. In the embodiment shown in the figure, a third slide rail is arranged on the machine frame 1, and the third movable shaft bracket 52 is movably arranged on the third slide rail, wherein the third slide rail adopts a dynamic balance length adaptive electric cylinder 53, the electric cylinder is a modular product designed by integrating a servo motor and a lead screw, and the rotary motion of the servo motor is converted into a linear motion, so that the linear motion of the third movable shaft bracket 52 is realized. When the clamping and transferring mechanism transfers the workpiece to the third detection station, the third movable shaft bracket 52 is relatively close to the third fixed shaft bracket 51, the motor shaft end of the workpiece is positioned on the third fixed shaft bracket 51, and the steel shaft end of the workpiece is positioned on the third movable shaft bracket 52. The scheme is the same as that adopted by the bounce detection mechanism 4, in the mechanism, the third movable shaft bracket 52 is only used for erecting a steel shaft of a workpiece and only needs a bearing or a bracket, and the third fixed shaft bracket 51 not only needs to position a motor shaft sleeve of the workpiece, but also needs 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 a shaft sleeve of the shaft end of the workpiece motor in a penetrating manner, so that the workpiece is positioned; furthermore, in order to realize the circumferential linkage of the shaft rod and the workpiece, the shaft rod and the workpiece need to be positioned. In this embodiment, still be equipped with a set of screw subassembly of twisting on the frame 1 for screw on the motor shaft sleeve of work piece is twisted, screws up axostylus axostyle and motor shaft sleeve, thereby realizes the circumferential linkage of axostylus axostyle and work piece. When the 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, the dynamic balance rotating motor is arranged below the table top of the machine frame 1, and the dynamic balance rotating motor 54 is linked with the shaft rod through a belt. The output end of the dynamic balance rotating motor 54 is also linked with a dynamic balance rotating encoder, a rotating shaft of the dynamic balance rotating encoder is linked with a shaft lever, and the dynamic balance rotating encoder transmits the running state of the dynamic balance rotating motor 54 to a motor controller in real time, so that the speed regulation and the start and stop of the motor are realized.

In the above scheme, the third fixed shaft bracket 51 and the third movable shaft bracket 52 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 the displacement and the speed of a detected object or a control part in operation control, and then the displacement and the speed of the movement of a grid between the optical signal transmitter and the optical signal receiver are changed according to the signals of the displacement and the speed, so that the optical signal receiver receives intermittent optical signals, and the intermittent optical signals are converted into electric signals and transmitted to the microprocessor for processing and 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 ports are respectively arranged on the third movable shaft bracket 52 and the third fixed shaft bracket 51, a displacement speed sensor 56 is arranged in the sensor assembly ports in an interference manner, sensing parts are respectively arranged in the third movable shaft bracket 52 and the third fixed shaft bracket 51 and abut 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 parts.

The operation process of the dynamic balance detection 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 the screw on the workpiece motor shaft sleeve is screwed into the shaft rod through the screw screwing assembly, so that the positioning of the workpiece is realized. After the workpiece is positioned, the dynamic balance rotating motor 54 drives the workpiece to rotate, and the dynamic balance rotating encoder detects the running state of the dynamic balance rotating motor 54 and transmits the running state to the motor controller in real time, so that the speed regulation and the 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 balance block assembly, and performs multiple times of balance block assembly and dynamic balance verification; for the workpiece which can reach a qualified state, glue injection treatment is carried out on the added balance blocks on the blades; and for the workpieces which are still not corrected to be in a qualified state, putting the workpieces into a balance waste box through a clamping and conveying mechanism.

Screw screwing assembly

The above-mentioned screwing components mentioned in the bounce detection mechanism 4 and the dynamic balance detection mechanism 5 may be respectively provided in one set in the bounce detection mechanism 4 and the dynamic balance detection mechanism 5, or may adopt a scheme that two mechanisms share one set. In the embodiment shown in the figure, the screwing component only has one group, the frame 1 is provided with a transverse moving pair 91, the screwing component is installed on the transverse moving pair 91, the screwing component 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 screwing component moves to the second detection station or the third detection station to screw (including screwing and unscrewing) according to needs. Specifically, the screwing assembly used in the present embodiment includes a screwing motor 92, a pressing cylinder 93 for pressing down the screw driver against the screw, and a screw driver 94 for driving the screw driver to rotate.

Balance block assembling mechanism

The balance block assembling mechanism 6 is used for calculating based on a dynamic balance detection result, and a balance block is added to compensate a workpiece at a proper blade position of the workpiece by adopting a weighting method to achieve dynamic balance. Specifically, the counterweight assembling process needs the counterweight assembling mechanism 6 and the dynamic balance detecting mechanism 5 to cooperate, so that the third fixed pedestal 51 and the third movable pedestal 52 in the dynamic balance detecting mechanism 5 are still used for positioning the workpiece in the counterweight assembling process, and the dynamic balance rotating motor 54 is used for driving the workpiece to rotate. On this basis, balancing piece assembly devices 6 is including setting up the three-dimensional walking support on frame 1 to and set up the clamp dress subassembly, blade detection subassembly and the injecting glue subassembly of pressing from both sides on the three-dimensional walking support. The three-dimensional walking support is used for walking on the support and clamping and transporting the balance blocks. The clamping assembly moves to a feeding station of the balance block through the three-dimensional walking support, and then moves to a balance block assembling position through the three-dimensional walking support. The blade detection assembly includes a blade probe 64, and the blade probe 64 uses laser detection to find the position of the blade requiring the insertion sheet, and the laser detection method is conventional in the art and will not be described in detail. The clamping assembly is used for clamping the balance block and comprises a clamping piece rotating motor 65 and a clamping piece air cylinder 66 arranged on the output end of the clamping piece rotating motor 65, and two clamping arms are arranged on the clamping piece air cylinder 66 and can be relatively close to or far away from each other, so that the balance block can be clamped or released; 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 block is adjusted; in addition, a clamping piece position encoder is linked to the output end of the clamping piece rotating motor 65 and transmits the running state of the clamping piece rotating motor 65 to the motor controller in real time, so that the speed regulation and the starting and stopping of the motor are realized. The glue injection assembly comprises a glue injection angle adjusting pair, a glue tube and a glue gun which are arranged on the glue injection angle adjusting pair, and the glue tube and the glue gun are omitted as shown in the figure because the glue tube and the glue gun are external parts. 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 bracket 60 is used for fixing a glue gun and a glue tube, and as shown in the figure, a through hole is formed in the glue injection bracket 60 for the glue tube to pass through.

The three-dimensional walking bracket comprises walking pairs in three directions of an X axis, a Y axis and a Z axis, wherein the X axis is the axial direction of the workpiece, and the scheme adopts an insertion sheet axial walking electric cylinder 61; the Y axis is the radial direction of the workpiece, and the scheme adopts an insertion sheet radial displacement electric cylinder 62; the Z axis is the up-down direction of the frame 1, and the electric cylinder 63 is moved up and down in the scheme. The insert axial displacement electric cylinder 61, the insert radial displacement electric cylinder 62 and the upper and lower displacement electric cylinders 63 work cooperatively to realize the movement in the space range of the region. The electric cylinder is a modularized product which integrally designs the servo motor and the lead screw, and converts the rotary motion of the servo motor into linear motion.

The balance weight assembling process is that after the dynamic balance detecting process, the balance weight assembling process is as follows: 1, moving a clamping assembly to a feeding station of a balance block by a three-dimensional walking bracket, and clamping the balance block by the clamping assembly; 2, moving the clamping assembly and the balance block on the clamping assembly to a position above a third detection station by the three-dimensional walking bracket; 3, the blade probe 64 finds the position of the blade needing inserting the sheet by adopting laser detection (namely finding the assembly position of the balance block); 4, the three-dimensional walking bracket moves the clamping assembly and the balance block on the clamping assembly to a balance block assembly position, 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 block at a specified position; 5, if the dynamic balance after adding the balancing piece detects qualified, then the three-dimensional walking support moves, the output end of the glue injection assembly moves to the assembly position of the balancing piece, the glue injection angle adjustment pair in the glue injection assembly performs the glue injection angle, the inserting piece axial walking electric cylinder 61 in the three-dimensional walking support adjusts the glue injection position, multi-direction glue injection fixation of different angles is achieved through multiple times of adjustment, the balancing piece is fixed at the designated position, and the assembly of the balancing piece is completed.

Discharging mechanism 8

The discharging mechanism 8 is used for sending out qualified workpieces which are subjected to the screw detection process, the jump detection process, the dynamic balance detection process and the balance block assembly process, when the device is used, the workpiece is transferred into the discharging mechanism 8 through the clamping and transferring mechanism, and the workpiece is continuously sent out through the discharging mechanism 8. Therefore, the outfeed sensor 82 capable of detecting whether a workpiece enters or not is provided in the outfeed path of the outfeed mechanism 8, and the achievable configuration of how a workpiece is transported to the station to be outfeed is not exclusive, that is, the outfeed mechanism 8 only needs to include a transport assembly and an outfeed sensor disposed in the transport path of the transport assembly (preferably at the end of the transport path). The structure of the discharging mechanism 8 does not influence the automatic balancing machine to complete the jumping detection, the dynamic balance detection and the balancing block assembly of the workpiece. In the present embodiment, a conveying assembly is provided, which includes a discharging belt 81 positioned on the frame 1 by a plurality of rotating shafts, and a discharging motor driving one of the rotating shafts to rotate; as shown in the figure, the discharging belt may be a plurality of narrow discharging belts, and the gaps between the plurality of discharging belts are smaller than the axial length of the workpiece. During discharging, the workpiece is placed on a discharging belt by the clamping and transferring mechanism, and the workpiece is conveyed to a station to be discharged by the discharging belt. In the process, the discharging sensor 82 detects whether a workpiece enters, if so, the discharging motor is stopped, and a discharging 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 detection mechanism 3, the bounce detection mechanism 4, the dynamic balance detection mechanism 5 and the discharging mechanism 8. The clamping and transferring mechanism needs to move in a three-dimensional direction, so that 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 bracket in the balance block assembling mechanism 6, the three-dimensional feeding bracket also comprises walking pairs 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 a gantry X-axis electric cylinder 95 is adopted in the scheme; the Y axis is the radial direction of the workpiece, and the scheme adopts a gantry Y-axis electric cylinder 96; the Z axis is the up-down direction of the frame 1, and the scheme adopts a gantry Z axis electric cylinder 97. The X-axis electric cylinder, the Y-axis electric cylinder and the Z-axis electric cylinder of the gantry work cooperatively to realize the movement in the space range of the area and the transportation of workpieces. The electric cylinder is a modularized product which integrally designs the servo motor and the lead screw, 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 in the screw detection process, the bounce detection process and the dynamic balance detection process are high, the two axial ends of the workpiece need to be positioned when the workpiece is clamped and carried, and the workpiece is kept balanced. Therefore, the workpiece clamping frame 98 is provided with a fixed end and a movable end which are respectively used for positioning two axial end parts of the workpiece along the axial direction 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 to be connected with the movable end, and the workpiece clamping cylinder 99 controls the movable end to be close to or far away 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 feeding and discharging station.

Balance weight production mechanism 7

The automatic balancing machine can fully automatically complete a feeding process, a screw detection process, a jumping detection process, a dynamic balance detection process, a balancing block assembly process and a discharging process, unqualified workpieces are detected and removed in the screw detection process, the jumping detection process and the dynamic balance detection process, and therefore the balance of the workpieces can be fully automatically detected and adjusted. In the scheme, the balance block obtained in the balance block assembly procedure is used as an accessory and is positioned in a balance block feeding station of the automatic balancing machine, in this case, the balance block is machined, and the automatic balancing machine is only used for fixing the balance block at the position of the blade needing the inserting piece. In another embodiment, the automatic balancing machine further comprises a balance weight producing mechanism 7, and the balance weight producing mechanism 7 is used for producing balance weights required in the balance weight assembling process. Specifically, the weight producing mechanism 7 in the present embodiment includes a material reel 71 disposed on the frame 1, a drawing component for drawing out a weight material tape from the material reel 71, and a punching component for punching the weight material tape to obtain the weights. Wherein, the traction assembly includes the traction frame 72, the traction frame 72 includes the fixed support body 721 and the activity support body 722, the activity support body 722 can for the fixed support body 721 along balancing piece material belt direction of delivery reciprocating motion, all be equipped with the level on the fixed support body 721 and the activity support body 722 and set up and communicating traction passageway, be equipped with on the fixed support body 721 and walk the material and compress tightly jar 73, walk the material and compress tightly the output of jar 73 and towards the traction passageway in the fixed support body 721, be equipped with electric jar on the activity support body 722 and return away the pneumatic cylinder 74, the output of electric jar returns away the pneumatic cylinder 74 and faces the traction passageway in the activity support body 722. In addition, in order to enable the weight material belt to be horizontally fed into the traction channel, the traction assembly in this embodiment further includes a guide wheel 75 disposed upstream of the traction frame 72, and the guide wheel 75 is used for guiding the weight material belt to be horizontally fed. When the traction assembly works, the electric cylinder return hydraulic cylinder 74 and the feed pressing cylinder 73 alternately press the fixed balance weight material belt, and the movable frame body 722 is driven by the electric cylinder return hydraulic cylinder 74 to reciprocate relative to the fixed frame body 721 along the conveying direction of the balance weight material belt, so that the balance weight material belt is conveyed forwards. If the feeding pressing cylinder 73 is released when the electric cylinder returning pressing cylinder 74 presses the balance weight material belt, the electric cylinder returning pressing cylinder 74 drives the movable frame body 722 to move forward for a distance along the conveying direction; then, the feeding pressing cylinder 73 presses the balance weight material belt, the electric cylinder returning pressing cylinder 74 is loosened, the movable frame body 722 returns for a distance away from the conveying direction, and the pressing balance weight material belt is prevented from being pulled back. In addition, the balance block is obtained by multiple times of stamping in the production process; the punching assembly in the present scheme therefore includes a punching bracket 76, a punching cylinder 77 arranged on the punching bracket 76, a die moving pair arranged below the punching bracket 76, and a plurality of sets of punching dies 79 arranged on the die moving pair; the moving direction of the die moving pair is perpendicular to the conveying direction of the balance block 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 blocks are obtained through sequential stamping of the plurality of groups of stamping dies, the last group of stamping dies need to cut off the formed balance blocks and the balance block material belt besides final stamping forming, and after the balance blocks are completed, the die moving pair is reset to wait for next stamping; and at this moment, the balance block obtained by carrying the last group of stamping dies resets, and the balance block is clamped and taken by the clamping assembly in the balance block assembling procedure for assembling. In this scheme, what the mould sliding pair adopted is that the mould walks position electric cylinder 78, and the mould sliding pair is provided with 5 stamping die of group, needs to obtain required balancing piece through 5 punching presses promptly. The automatic balancing machine with the balance weight production mechanism 7 integrates balance weight production in an automatic balancing process, so that the automation degree of the equipment is higher. In addition, the balance weight production mechanism can calculate and determine the weight of the balance weight according to the data detected by dynamic balance so as to punch the balance weight, has the advantages of limited weight specifications compared with the traditional balance weight, and can accurately provide the weight of the balance weight in online production. In a specific implementation, the distance that the electric cylinder return hydraulic cylinder 74 drives the balance weight material belt to move forward is determined by calculation according to data detected by dynamic balance. Because the width and the thickness of the balance weight material belt are determined, the feeding length of the balance weight material belt is calculated according to dynamic balance, and balance weights with different lengths and adaptive offset compensation can be produced on line.

Example 2:

the embodiment is based on the automatic balancing machine provided in embodiment 1, and provides a dynamic balance compensation processing method for a through-flow fan blade; 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 loaded by the conveying belt; in the process, a material sensor detects whether a workpiece enters a station to be loaded or not; if no material is detected, the feeding motor continues to operate for feeding; if the workpiece is detected to be loaded, the feeding motor is stopped to wait for the clamping and transferring mechanism to clamp and transfer the workpiece in the workpiece loading station into the screw detection station;

step 2, detecting screws;

2.1 the workpiece is transferred to a first detection station by a clamping and transferring mechanism, a first movable shaft bracket is relatively close to a 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, so that the positioning of the workpiece is realized;

2.2; after the positioning is finished, the first detection motor drives the workpiece to rotate for a circle; in the process, the screw detection probe detects whether a motor shaft end frame of the workpiece is matched with a screw or not, if the screw is detected, the first detection motor is stopped immediately, the workpiece is positioned, and the screw detection probe is opposite to the screw; if the screw is not detected, the workpiece is qualified as a waste material with no screw;

2.3; the clamping and transferring mechanism clamps the workpiece, and the first movable shaft bracket is withdrawn from the reset; based on the detection result of 2.2, the clamping and conveying mechanism conveys the waste material to a jumping detection mechanism or a screw lack waste material box.

Step 3, detecting the jitter;

3.1, transferring the workpiece qualified in screw detection to a second detection station by a clamping and transferring mechanism, wherein a second movable shaft bracket is relatively close to a 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 workpiece motor shaft sleeve 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 workpiece is driven to rotate by the jumping rotating motor, and the running state of the jumping rotating motor detected by the jumping rotating encoder is transmitted to the motor controller in real time, so that the speed regulation and the starting and stopping of the motor are realized; under the cooperative operation of the jumping axial moving pair, the jumping radial moving pair and the jumping rotary 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 based on the detected data;

3.2; after the detection is finished, the jumping rotary encoder needs to ensure that the screw is positioned right above, the screw assembly unscrews the screw, and the second movable shaft bracket relatively leaves the second fixed shaft bracket; and simultaneously, the clamping and conveying mechanism clamps the workpiece, and conveys the workpiece to a dynamic balance detection mechanism or a jumping waste bin according to a detection result of 3.2.

And 4, step 4: dynamic balance compensation;

4.1, transferring the workpiece to a third detection station by a product qualified in runout detection through a clamping and transferring mechanism, wherein a third movable shaft bracket is relatively close to a 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 workpiece motor shaft sleeve 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 dynamic balance rotating motor drives the workpiece to rotate, and in the process, the displacement speed sensor detects dynamic balance data of the workpiece by means of the sensing component;

4.3, based on the dynamic balance data in the preorder step, an electric cylinder in the balance block production mechanism returns a pressure cylinder to control the length of the balance block material belt entering the die, and the balance block with adaptive offset compensation is obtained through multiple times of stamping;

4.4, clamping the balance block obtained in the step 4.3 by a clamping assembly in the balance block assembling mechanism, and moving the clamping assembly and a balance block on the clamping assembly to the position above a third detection station by the three-dimensional walking bracket;

4.5, the blade probe finds the position of the blade needing inserting the sheet by adopting laser detection (namely finding the assembly position of the balance block); the three-dimensional walking bracket moves the clamping assembly and the balance block on the clamping assembly to a balance block assembly position, a clamping piece rotating motor in the clamping assembly adjusts the angle of the inserting piece, and the clamping assembly inserts the balance block at a designated position;

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

4.7, the dynamic balance rotary encoder needs to ensure that the screw is positioned right above, the screw assembly unscrews the screw, and the third movable shaft bracket relatively leaves the third fixed shaft bracket; simultaneously, the clamping and transferring mechanism clamps the workpiece and puts the workpiece into a balance 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, adjusting the glue injection angle by a glue injection angle adjusting pair in the glue injection assembly, adjusting the glue injection position by an insert in the three-dimensional walking bracket in an axial direction moving electric cylinder, realizing multi-direction glue injection fixation of different angles through multiple adjustments, and fixing the balance block at a specified position;

4.9, the dynamic balance rotary encoder needs to ensure that the screw is positioned right above, the screw assembly unscrews the screw, and the third movable shaft bracket relatively leaves the third fixed shaft bracket; simultaneously, the clamping and transferring mechanism clamps the workpiece and puts the workpiece on the discharging mechanism;

and 5: discharging;

5.1, the workpiece is transferred to a discharging belt by a clamping and transferring mechanism, and the workpiece is conveyed to a station to be taken by the discharging belt; in the process, the discharging sensor detects whether a workpiece enters, if so, the discharging motor is stopped, and a material taking reminding alarm is sent out; if not, the discharging is continued.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (9)

1. The utility model provides a balancing piece production and assembly devices which characterized in that: the balance weight assembly device comprises a rack, and a balance weight production mechanism, a dynamic balance detection mechanism and a balance weight assembly mechanism which are arranged on the rack; the balance block production mechanism comprises a material tape disc arranged on the rack, a traction assembly used for leading out a balance block material tape from the material tape disc, and a stamping assembly used for stamping the balance block material tape to obtain a balance block; the dynamic balance detection mechanism comprises a third fixed shaft bracket and a third movable shaft bracket which are arranged on the rack, a third detection station is formed between the third fixed shaft bracket and the third movable shaft bracket, the motor shaft end of the workpiece is positioned on the third fixed shaft bracket, the steel shaft end of the workpiece is positioned on the third movable shaft bracket, and a dynamic balance rotating motor is arranged on the third fixed shaft bracket to drive the workpiece to rotate; the balance block assembling mechanism comprises a three-dimensional walking bracket arranged on the rack, and a clamping assembly, a blade detecting assembly and a glue injection assembly which are arranged on the three-dimensional walking bracket.

2. The weight producing and assembling apparatus of claim 1, wherein: the third fixed shaft bracket is fixed on the rack, and the third movable shaft bracket is close to or far away from the third fixed shaft bracket; the third movable shaft bracket and the third fixed shaft bracket are respectively provided with a sensor assembly port, the displacement speed sensor is arranged in the sensor assembly ports in an interference mode, a sensing part is arranged in the third movable shaft bracket and the third fixed shaft bracket and abuts against a steel shaft and a motor shaft sleeve of the workpiece, and the displacement speed sensor obtains dynamic balance data of two ends of the workpiece by means of the sensing part.

3. The weight producing and assembling apparatus of claim 1, wherein: the dynamic balance rotating motor is positioned below the table top of the frame and is linked with the shaft lever through a belt; the output end of the dynamic balance rotating motor is also linked with a dynamic balance rotating encoder, a rotating shaft of the dynamic balance rotating encoder is linked with a shaft lever, and the dynamic balance rotating encoder transmits the running state of the dynamic balance rotating motor to a motor controller in real time to realize speed regulation and start and stop of the motor.

4. The weight producing and assembling apparatus of claim 1, wherein: the clamping assembly comprises a clamping piece rotating motor and a clamping piece cylinder arranged on the output end of the clamping piece rotating motor, and two clamping arms are arranged on the clamping piece cylinder and can relatively approach or separate from each other, so that the balance block can be clamped or released; the clamping piece rotating motor is used for driving the clamping piece cylinder and the clamping arm on the clamping piece cylinder to rotate by an angle, so that the assembly angle of the balance block is adjusted; the glue injection assembly comprises a glue injection angle adjusting pair, and a glue tube and a glue gun which are arranged on the glue injection angle adjusting pair; the glue injection angle adjusting pair comprises a glue injection angle motor and a glue injection bracket arranged on the output end of the glue injection angle motor; a through hole is formed in the glue injection support and is used for the glue tube to pass through.

5. The weight producing and assembling apparatus of claim 4, wherein: the output end of the clamping piece rotating motor 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 to the motor controller in real time to realize the speed regulation and start and stop of the motor.

6. The weight producing and assembling apparatus of claim 4, wherein: the three-dimensional walking support comprises walking pairs 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 walking pair of the X axis adopts an insert axial shifting electric cylinder; the Y axis is the radial direction of the workpiece, and the traveling pair of the Y axis adopts an insert radial traveling electric cylinder; the Z axis is the up-down direction of the frame, and the walking pair of the Z axis adopts an up-down walking electric cylinder.

7. The weight producing and assembling apparatus of claim 1, wherein: the stamping assembly comprises a stamping support, a stamping cylinder arranged on the stamping support, a die moving pair arranged below the stamping support, and a plurality of groups of stamping dies arranged on the die moving pair; the moving direction of the die moving pair is perpendicular to the conveying direction of the balance block 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, and the balance blocks are obtained through sequential stamping of the plurality of groups of stamping dies.

8. The weight producing and assembling apparatus of claim 1, wherein: the traction assembly comprises a traction frame, the traction frame comprises a fixed frame body and a movable frame body, the movable frame body can reciprocate relative to the fixed frame body along the conveying direction of the balance block material belt, traction channels which are horizontally arranged and communicated are arranged on the fixed frame body and the movable frame body, a feeding compression cylinder is arranged on the fixed frame body, the output end of the feeding compression cylinder faces the traction channel in the fixed frame body, an electric cylinder return pressure cylinder is arranged on the movable frame body, and the output end of the electric cylinder return pressure cylinder faces the traction channel in the movable frame body; the electric cylinder return pressure cylinder and the material feeding compaction cylinder alternately compact and fix the balance block material belt, and the balance block material belt is conveyed forwards through the reciprocating movement of the movable frame body relative to the fixed frame body along the conveying direction of the balance block material belt; the traction assembly further comprises a guide wheel arranged on the upper stream of the traction frame, and the guide wheel is used for guiding the balance block material belt to horizontally feed.

9. An automatic balancing machine comprising a weight producing and assembling apparatus according to any one of claims 1 ~ 8.

Images