CN215338706U - Automatic balancing machine for cross-flow fan blades - Google Patents

Abstract

The utility model relates to the field of through-flow fan blade processing equipment, in particular to an automatic balancing machine for a through-flow fan blade. An automatic balancing machine for cross-flow fan blades comprises a rack, a transverse moving crane and a workpiece clamping mechanism, wherein a feeding transmission mechanism, a blanking transmission mechanism, a detection platform, a detection seat and an inserting and taking mechanism are arranged on the rack; the workpiece clamping mechanism comprises a movable support and clamping assemblies arranged on the movable rack, the clamping assemblies are provided with a plurality of groups, and the mechanical arms of the clamping assemblies can clamp workpieces at the same position in the movement process; the detection seats are multiple and can simultaneously operate to detect the balance of the workpiece. In the technical scheme, a plurality of groups of clamping assemblies are arranged, the clamping assemblies are taken and placed at the same time, and the number of workpieces to be clamped in unit time is increased; moreover, the number of the detection seats is increased, the number of the detection workpieces is increased in unit time, the efficiency is greatly improved, and the productivity is increased.

Description

Automatic balancing machine for cross-flow fan blades

Technical Field

The utility model relates to the field of through-flow fan blade processing equipment, in particular to an automatic balancing machine for a through-flow fan blade.

Background

The cross-flow fan is also called a cross-flow fan, and the impeller is multi-blade type and long cylindrical and is provided with forward multi-wing blades. When the impeller rotates, airflow enters the blade grids from the opening position of the impeller, passes through the inside of the impeller and is discharged into the volute from the blade grids on the other side to form working airflow. The flow of the air flow in the impeller is complicated, the speed field of the air flow is unstable, and a vortex is also present in the impeller, the center of which is located near the volute tongue. The existence of the vortex enables the output end of the impeller to generate circulating flow, and outside the vortex, an airflow streamline in the impeller is arc-shaped. Thus, the flow velocity at each point on the outer circumference of the impeller is non-uniform, with greater velocity nearer the vortex core and less velocity nearer the volute. The air flow velocity and pressure at the fan outlet are not uniform, so the flow coefficient and pressure coefficient of the fan are averages. The position of the vortex has great influence on the performance of the cross flow fan, the center of the vortex is close to the inner circumference of the impeller and is close to the volute tongue, and the performance of the fan is good; the vortex center is far away from the vortex tongue, so that the area of circulating flow is increased, the efficiency of the fan is reduced, and the unstable degree of flow is increased.

The cross-flow fan mainly comprises an impeller, an air duct and a motor. The impeller material is generally aluminum alloy or engineering plastic. The aluminum alloy impeller has high strength, light weight and high temperature resistance, and can keep stable operation for a long time without deformation; the plastic impeller is formed by injection molding of a mold and ultrasonic welding, is generally used in occasions with low rotating speed and has larger diameter. The air duct is generally formed by punching and molding a metal sheet, and can also be cast by plastic or aluminum alloy. The casing adopts streamlined design, can effectively reduce the loss of air current, makes the work efficiency of fan improve greatly.

The cross-flow fan blade balancing machine is mainly applied to balance correction of cross-flow fans of air conditioners, namely impellers in cross-flow fans and other similar rotating workpieces.

Under ideal conditions, when the cross-flow fan blade rotates or does not rotate, the pressure generated by the bearing is the same, and the cross-flow fan blade is a balanced cross-flow fan blade. However, the cross-flow fan blade in the engineering has many factors such as asymmetric geometric shapes due to uneven material or blank defects, errors generated in processing and assembling, and even design, so that the centrifugal inertia force generated by each tiny particle on the cross-flow fan blade cannot be counteracted mutually when the cross-flow fan blade rotates. The centrifugal inertia force acts on the machinery and the foundation through the bearing, so that vibration is caused, noise is generated, bearing abrasion is accelerated, the service life of the machinery is shortened, and destructive accidents can be caused in severe cases.

For this purpose, the rotor must be balanced to the level of precision permitted for balancing, or to the extent that the amplitude of the mechanical vibrations thus generated falls within the permitted range. The signal acquisition part is used for the collection and the preliminary treatment of rotor vibration signal, divide into rotational speed collection and centrifugal force and adopts, and the rotational speed of work piece is first measured to the balancing machine, just can confirm centrifugal force's size, and the rotor can arouse mechanical part's vibration when rotatory, and the sensor can be collected vibration signal, sends central processing unit after certain processing.

In modern machines, the calibration of the balancing machine comprises three items: calibrating the magnitude and the phase of the system unbalance; calibrating the sensitivity; and the zero phase calibration is firstly the calibration of the magnitude and the phase of the system unbalance. Assuming that the unbalance amount of the verification rotor subjected to high-precision balance is zero, when only the verification rotor is placed, a vibration signal still exists, analysis can know that the vibration signal is generated under the action of a combined vector of a system unbalance vector and a verification rotor unbalance vector, and the unbalance amount of the verification rotor is zero at the moment, namely the system unbalance amount is reflected to the verification rotor or a flywheel and is a fixed-magnitude and fixed-phase amount.

The dynamic balance test has the following effects: the rotor and the product formed by the rotor are improved in quality, noise and vibration are reduced, the trial service life of a supporting part (bearing) is prolonged, and the power consumption of the product is reduced.

At present, the detection efficiency of a balancing machine in workshop use is not high enough, and the yield of workpieces is greatly influenced in the past.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an automatic balancing machine for a cross-flow fan blade, which is used to improve the detection efficiency of the cross-flow fan blade and expand the productivity.

In order to achieve the purpose, the utility model adopts the following technical scheme: the automatic sheet feeding and discharging device comprises a rack, a cross-sliding crane and a workpiece clamping mechanism arranged on a cantilever of the cross-sliding crane, wherein a feeding transmission mechanism, a discharging transmission mechanism, a detection platform arranged between the feeding transmission mechanism and the discharging transmission mechanism, a detection seat arranged on the detection platform and an insert sheet taking mechanism arranged at the side end of the detection seat are arranged on the rack; the workpiece clamping mechanism comprises a movable support and clamping assemblies arranged on the movable rack, each clamping assembly comprises a manipulator and clamping cylinders arranged at the end parts of the manipulators, the clamping assemblies are provided with a plurality of groups, and the manipulators of the clamping assemblies can clamp workpieces at the same position in the movement process; a workpiece lifting mechanism connected with the detection seat or arranged in the detection platform is arranged below the detection seat, and can act on the detection seat to lift the detection seat; a driving device is arranged in the detection platform and can drive a workpiece on the detection seat to rotate; the detection seats are multiple and can simultaneously operate to detect the balance of the workpiece. In the technical scheme, a plurality of groups of clamping assemblies are arranged, the clamping assemblies are taken and placed at the same time, and the number of workpieces to be clamped in unit time is increased; moreover, the number of the detection seats is increased, the number of the detection workpieces is increased in unit time, the efficiency is greatly improved, and the productivity is increased.

Preferably, the manipulator is provided with a fixing frame and two clamping arms which are used for respectively positioning two axial end parts of the workpiece along the axial direction of the workpiece, the clamping cylinder can control the clamping arms to be close to or far away from the fixing frame, and the two clamping arms are distributed on two sides of the fixing frame. In the technical scheme, the clamping cylinder drives the clamping arm to grab the workpiece or place the workpiece on the detection seat and loosen the workpiece, the structure is reasonable, and the workpiece is not easy to drop when being clamped.

Preferably, the clamping cylinder comprises a lifting cylinder A, a guide pillar A, a guide sleeve A and a grabbing cylinder connected with the clamping arms, and the grabbing cylinder can control the clamping arms to be close to or far away from the fixing frame from two sides. In the technical scheme, the clamping cylinder in the clamping cylinder is used for clamping the workpiece or placing the workpiece on the detection seat.

Preferably, the lifting cylinder A can control the clamping assembly to ascend or descend relative to the movable support; the guide pillar A and the guide sleeve A ensure accurate positioning and stroke guiding of the lifting cylinder A and the grabbing cylinder. In the technical scheme, the lifting cylinder A can control the clamping assembly to leave the upper part of the detection seat after clamping the workpiece or leave the upper part of the detection seat after placing the workpiece to the detection seat.

Preferably, the detection platform is arranged below the clamping assembly, and the traverse crane can control the moving bracket to horizontally move relative to the detection platform. In the technical scheme, the traversing crane drives the movable support to move on the detection platform so as to meet the requirements of clamping workpieces on a plurality of detection seats.

Preferably, two sides in the middle of the detection seat are provided with erecting openings, workpieces to be detected are placed on the erecting openings, the erecting openings are provided with sensors, and the sensors are used for picking up horizontal vibration signals on the left supporting point and the right supporting point. In the technical scheme, the sensor is arranged on the erection opening, and when a workpiece vibrates on the erection opening, the sensor can pick up vibration data at two ends of the workpiece and determine whether the vibration data meet the requirement of balance.

Preferably, the workpiece lifting mechanism comprises a lifting cylinder B, a plurality of guide pillars B and guide sleeves B which are circumferentially and regularly arranged, and the lifting cylinder B can drive the guide pillars B and the guide sleeves B to lift and jack up the detection seat. Among this technical scheme, promote cylinder B jack-up and detect the seat, be in order to make and press from both sides the dress mechanism and can conveniently press from both sides and get, moreover also facilitate for the operation of inserted sheet mascerating machine.

Preferably, a clamping cylinder is arranged in the detection platform below the detection seat, the clamping cylinder is arranged in the middle of the seat body and comprises a cylinder A and clamping parts acting on two axial ends of the workpiece, and the cylinder A can drive the clamping parts to be close to or far away from the workpiece; the clamping part can stretch out the upper end face of the detection seat to clamp workpieces from two sides, and the clamping part is provided with oblique blocks for clamping two sides of the upper end of the air cylinder. In this technical scheme, when promotion cylinder B promoted the work piece to treating when getting the position, if the work piece needs the inserted sheet process, then need make clamping part press from both sides tight work piece and make things convenient for the inserted sheet process to go on.

Preferably, the lateral part of detecting the seat is equipped with the inserted sheet platform, vertically be equipped with guide bar A on the inserted sheet platform to and transversely be equipped with guide bar B, the inserted sheet platform still is equipped with the inserted sheet and gets mascerating machine, the inserted sheet is got mascerating machine and is the lead screw motion on guide bar A and guide bar B. Among this technical scheme, the inserted sheet gets mascerating machine can go on about from top to bottom on the mesa that guide bar A and guide bar B constitute, makes the inserted sheet get mascerating machine can operate in a flexible way, makes things convenient for the process to go on.

Preferably, the inserting sheet taking machine comprises a main body part and an air claw arranged at the front end of the main body part, and when the inserting sheet taking machine is driven by a screw rod to move upwards, the air claw can clamp a balance block at a certain position; the insert sheet taking mechanism clamps the balance block and moves back to the guide rod B as a lead screw, and when the clamping cylinder clamps the workpiece, the insert sheet taking mechanism moves towards the direction of the detection seat as the lead screw moves on the guide rod A; the front end of the inserting sheet taking machine can be positioned above a workpiece, and a clamped balance block is added into the workpiece. In the technical scheme, the insert sheet taking machine is specifically shown to compensate a workpiece with poor balance after clamping the balance block, so that the balance of the workpiece reaches an expected qualified position.

Drawings

Fig. 1 is a schematic diagram of a C-direction structure of an automatic balancing machine for cross-flow fan blades.

Fig. 2 is a schematic view of an a-direction structure of an automatic balancing machine for cross-flow fan blades when clamping a workpiece.

Fig. 3 is a schematic diagram of a B-direction structure of an automatic balancing machine for cross-flow fan blades when clamping a workpiece.

Fig. 4 is a schematic view of an a-direction structure of a detection seat of an automatic balancing machine for cross-flow fan blades.

Fig. 5 is a schematic diagram of a B-direction structure of a detection seat of an automatic balancing machine for cross-flow fan blades.

Fig. 6 is a schematic view of an a-direction structure of a workpiece compensation balance block on a detection seat of an automatic balancing machine for cross-flow fan blades.

Fig. 7 is a schematic view of a B-direction structure of a workpiece compensation balance block on a detection seat of an automatic balancing machine for cross-flow fan blades.

Fig. 8 is a schematic view of an a-direction structure of an automatic balancing machine for cross-flow blades in a lifting state of a detection seat.

Fig. 9 is a schematic diagram of a B-direction structure of an automatic balancing machine for cross-flow blades in a lifting state of a detection seat.

Fig. 10 is a schematic view of an a-direction structure of an automatic balancing machine for cross-flow fan blades when an insert sheet taking machine does not work.

Fig. 11 is a schematic view of an a-direction structure of a moving balance block on an insert sheet taking machine of an automatic balancing machine for cross-flow fan blades.

Fig. 12 is a schematic structural diagram of a direction B of a moving balance block on an insert sheet taking machine of an automatic balancing machine for cross-flow fan blades.

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 utility model and are not to be construed as limiting the utility model.

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.

The automatic balancing machine for the through-flow fan blade shown in fig. 1-12 comprises a frame 1, a cross-sliding crane 2, and a workpiece clamping mechanism arranged on a cantilever of the cross-sliding crane 2, wherein the frame 1 is provided with a feeding transmission mechanism 3, a discharging transmission mechanism 4, a detection platform 5 arranged between the feeding transmission mechanism 3 and the discharging transmission mechanism 4, a detection seat 6 arranged on the detection platform 5, and an inserting sheet taking mechanism arranged at the side end of the detection seat 6; the workpiece clamping mechanism comprises a movable support 7 and clamping assemblies arranged on the movable rack 1, each clamping assembly comprises a manipulator 8 and clamping cylinders 9 arranged at the end parts of the manipulators 8, the clamping assemblies are provided with a plurality of groups, and the manipulators 8 of the clamping assemblies can clamp workpieces at the same position in the movement process; a workpiece lifting mechanism connected with the detection seat 6 or arranged in the detection platform 5 is arranged below the detection seat 6, and the workpiece lifting mechanism can act on the detection seat 6 to lift the detection seat; a driving device is arranged in the detection platform 5 and can drive the workpiece on the detection seat 6 to rotate; the detection seats 6 are multiple, and the multiple detection seats 6 can independently detect the balance of the workpiece. In the technical scheme, a plurality of groups of clamping assemblies are arranged, the clamping assemblies are taken and placed at the same time, and the number of workpieces to be clamped in unit time is increased; moreover, the number of the detection seats 6 is increased, the number of the detection workpieces is increased in unit time, the efficiency is greatly improved, and the productivity is increased.

More specifically, the manipulator 8 is provided with a fixed frame 10 and two clamping arms 11 which are used for respectively positioning two axial end parts of the workpiece along the axial direction of the workpiece, the clamping cylinder 9 can control the clamping arms 11 to be close to or far away from the fixed frame 10, and the two clamping arms 11 are distributed on two sides of the fixed frame 10; the clamping cylinder 9 comprises a lifting cylinder A12, a guide pillar A13, a guide sleeve A14 and a grabbing cylinder 15 connected with the clamping arm 11, and the grabbing cylinder 15 can control the clamping arm 11 to approach or leave the fixed frame 10 from two sides; the lifting cylinder A12 can control the clamping assembly to ascend or descend relative to the movable bracket 7; the guide pillar A13 and the guide sleeve A14 ensure the accurate positioning and stroke guiding of the lifting cylinder A12 and the grabbing cylinder 15; the detection platform 5 is arranged below the clamping assembly, and the traversing crane 2 can control the moving bracket 7 to horizontally move relative to the detection platform 5. The clamping assembly is provided with two groups of existing mechanical hands 8 as shown in the figure, the two mechanical hands 8 are symmetrically arranged above the detection seat 6, workpieces move to the edge position close to the detection platform 5 from the feeding transmission mechanism 3, one mechanical hand 8 close to the feeding transmission mechanism 3 is driven by the grabbing cylinder 15 to clamp the workpieces to be detected from the edge position to the detection seat 6, the lifting cylinder 12A drives the mechanical hand to leave the position above the detection seat to clamp another workpiece from the edge position to the other detection seat, and at the moment, the other mechanical hand clamps the detected workpieces from the first detection seat under the control of the grabbing cylinder.

More specifically, two sides of the middle of the detection seat 6 are provided with erection openings 16, and workpieces to be detected are placed on the erection openings 16; the workpiece lifting mechanism comprises a lifting cylinder B17, a plurality of guide posts B18 and guide sleeves B19 which are circumferentially and regularly arranged, and the lifting cylinder B17 can drive the guide posts B18 and the guide sleeves B19 to lift and jack up the detection seat 6; a clamping cylinder is arranged in the detection platform 5 below the detection seat 6, the clamping cylinder is arranged in the middle of the seat body and comprises a cylinder A20 and clamping parts 21 acting on two axial ends of the workpiece, and the cylinder A20 can drive the clamping parts 21 to be close to or far away from the workpiece; the clamping part 21 can extend out of the upper end face of the detection seat 6 to clamp the workpiece from two sides, and the clamping part 21 is an inclined block arranged on two sides of the upper end of the clamping cylinder. In the technical scheme, a sensor is arranged on the erection opening 16, and when a workpiece vibrates on the erection opening, the sensor can pick up vibration data of two ends of the workpiece and determine whether the vibration data meet the requirement of balance; in addition, the lifting cylinder B jacks up the detection seat 6, so that the clamping mechanism can be clamped conveniently, and the operation of the subsequent sheet inserting and taking machine 25 is facilitated; when the lifting cylinder B17 lifts the workpiece to a position to be fetched, if the workpiece needs the sheet inserting process, the clamping part 21 needs to clamp the workpiece to facilitate the sheet inserting process.

The lateral part of detecting seat 6 is equipped with inserted sheet platform 22, vertically is equipped with guide bar A23 on the inserted sheet platform 22 to and transversely be equipped with guide bar B24, inserted sheet platform 22 still is equipped with inserted sheet machine of getting 25, and inserted sheet machine of getting 25 is the lead screw motion on guide bar A23 and guide bar B24. Specifically, the insert sheet taking machine 25 comprises a main body part and an air claw 26 arranged at the front end of the main body part, and when the insert sheet taking machine 25 moves upwards through screw rod transmission, the air claw 26 can clamp a balance block at a certain position; the insert sheet taking mechanism 25 clamps the balance block and moves back to the guide rod B24 as a screw rod, and when the clamping cylinder clamps the workpiece, the insert sheet taking mechanism 25 moves towards the detection seat 6 as the screw rod moves on the guide rod A23; the front end of the insert sheet taking machine 25 can be positioned above the workpiece to add the clamped balance weight into the workpiece. In the technical scheme, the inserting sheet taking machine 25 can move up, down, left and right on the table top formed by the guide rod A23 and the guide rod B24, so that the inserting sheet taking machine can flexibly operate and is convenient for the process.

In this embodiment, the method includes:

step (1): and feeding, wherein a worker places the workpiece on the feeding conveying mechanism and conveys the workpiece to a corresponding position, and a manipulator 8 close to the feeding conveying mechanism clamps the workpiece to be detected to the detection seat 6.

Step (2): after the workpiece is positioned on the detection seat 6, the step 3 in the embodiment 2 in the chinese patent specification with publication number CN110196140A is referred to for the concrete detection matters.

And (3): and (3) compensating the balance blocks, moving the inserted sheet taking machine 25 to a certain position by a screw rod motion of a guide rod A23, clamping the balance blocks by using an air claw 26, returning to the original position, performing the screw rod motion on a guide rod B, moving the guide rod B towards the direction of a workpiece to be compensated, clamping the workpiece by using a clamping cylinder at the moment, and adding the balance blocks into the detected workpiece by using the inserted sheet taking machine.

And (4): and (4) blanking, wherein a manipulator close to the blanking transmission mechanism clamps the workpiece with the balance weight assembled and places the workpiece on the blanking transmission mechanism.

The detection steps on the other detection seats are identical to the steps described above. It is worth mentioning that a plurality of detection seats are arranged, and in the time of workpiece detection and insertion, the manipulator can place subsequent workpieces to be detected on other detection seats in advance, so that the time can be saved, and the productivity can be improved.

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 utility model. 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 (10)

1. An automatic balancing machine for cross-flow fan blades comprises a rack (1), a cross-sliding crane (2), a workpiece clamping mechanism arranged on a cantilever of the cross-sliding crane (2), a feeding transmission mechanism (3), a discharging transmission mechanism (4), a detection platform (5) arranged between the feeding transmission mechanism (3) and the discharging transmission mechanism (4), a detection seat (6) arranged on the detection platform (5), and an inserting and taking mechanism arranged at the side end of the detection seat (6), wherein the rack (1) is provided with the feeding transmission mechanism (3), the discharging transmission mechanism (4); the method is characterized in that: the workpiece clamping mechanism comprises a movable support (7) and clamping assemblies arranged on the movable rack (1), the clamping assemblies comprise a manipulator (8) and clamping cylinders (9) arranged at the end parts of the manipulator (8), the clamping assemblies are provided with a plurality of groups, and the manipulators (8) of the clamping assemblies can clamp workpieces at the same position in the movement; a workpiece lifting mechanism connected with the detection seat (6) or arranged in the detection platform (5) is arranged below the detection seat (6), and the workpiece lifting mechanism can act on the detection seat (6) to lift the detection seat; a driving device is arranged in the detection platform (5), and the driving device can drive a workpiece on the detection seat (6) to rotate; the detection seats (6) are multiple, and the multiple detection seats (6) can independently detect the balance of the workpiece.

2. The automatic balancing machine of the cross-flow fan blade according to claim 1, characterized in that: the manipulator (8) is provided with a fixing frame (10) and clamping arms (11) which are used for respectively positioning two axial end parts of the workpiece along the axial direction of the workpiece, the clamping cylinder (9) can control the clamping arms (11) to be close to or far away from the fixing frame (10), and the two clamping arms (11) are distributed on two sides of the fixing frame (10).

3. The automatic balancing machine for the cross-flow fan blade of claim 2, wherein: the clamping cylinder (9) comprises a lifting cylinder A (12), a guide pillar A (13), a guide sleeve A (14) and a grabbing cylinder (15) connected with the clamping arms (11), and the grabbing cylinder (15) can control the clamping arms (11) to be close to or far away from the fixing frame (10) from two sides.

4. The automatic balancing machine of the cross-flow fan blade of claim 3, wherein: the lifting cylinder A (12) can control the clamping assembly to ascend or descend relative to the movable support (7); the guide post A (13) and the guide sleeve A (14) ensure accurate positioning and stroke guiding of the lifting cylinder A (12) and the grabbing cylinder (15).

5. The automatic balancing machine of the cross-flow fan blade according to claim 1, characterized in that: the detection platform (5) is arranged below the clamping assembly, and the traversing crane (2) can control the moving support (7) to horizontally move relative to the detection platform (5).

6. The automatic balancing machine of the cross-flow fan blade according to claim 1, characterized in that: the detection device is characterized in that erecting openings (16) are formed in the two sides of the middle of the detection seat (6), workpieces needing to be detected are placed on the erecting openings (16), sensors are arranged on the erecting openings (16), and the sensors are used for picking up horizontal vibration signals on the left supporting point and the right supporting point.

7. The automatic balancing machine of the cross-flow fan blade according to claim 1, characterized in that: the workpiece lifting mechanism comprises a lifting cylinder B (17), a plurality of guide columns B (18) and guide sleeves B (19) which are circumferentially and regularly arranged, and the lifting cylinder B (17) can drive the guide columns B (18) and the guide sleeves B (19) to lift and jack up the detection seat (6).

8. The automatic balancing machine for the cross-flow fan blade of claim 7, wherein: a clamping cylinder is arranged in the detection platform (5) below the detection seat (6), the clamping cylinder is arranged in the middle of the seat body and comprises a cylinder A (20) and clamping parts (21) acting on two axial ends of the workpiece, and the cylinder A (20) can drive the clamping parts (21) to be close to or far away from the workpiece; the clamping part (21) can extend out of the upper end face of the detection seat (6) to clamp workpieces from two sides, and the clamping part (21) is provided with oblique blocks for clamping two sides of the upper end of the cylinder.

9. The automatic balancing machine of the cross-flow fan blade according to claim 1, characterized in that: the lateral part of detecting seat (6) is equipped with inserted sheet platform (22), vertically be equipped with guide bar A (23) on inserted sheet platform (22) to and transversely be equipped with guide bar B (24), inserted sheet platform (22) still are equipped with the inserted sheet and get mascerating machine (25), the inserted sheet is got mascerating machine (25) and is the lead screw motion on guide bar A (23) and guide bar B (24).

10. The automatic balancing machine for the cross-flow fan blade of claim 9, wherein: the insert sheet taking machine (25) comprises a main body part and an air claw (26) arranged at the front end of the main body part, and when the insert sheet taking machine (25) is driven by a screw rod to move upwards, the air claw (26) can clamp a balance block at a certain position; the insert sheet taking mechanism (25) clamps the balance block and moves back to the guide rod B (24) as a screw rod, and when the clamping cylinder clamps the workpiece, the insert sheet taking mechanism (25) moves on the guide rod A (23) towards the direction of the detection seat (6) as the screw rod moves; the front end of the inserting sheet taking machine (25) can be positioned above the workpiece, and a clamped balance block is added into the workpiece.

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