CN116735083A - Dynamic balance detection platform for mechanical part with adjustable counterweight - Google Patents
Dynamic balance detection platform for mechanical part with adjustable counterweight Download PDFInfo
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- CN116735083A CN116735083A CN202311012425.XA CN202311012425A CN116735083A CN 116735083 A CN116735083 A CN 116735083A CN 202311012425 A CN202311012425 A CN 202311012425A CN 116735083 A CN116735083 A CN 116735083A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000000523 sample Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 5
- 239000013585 weight reducing agent Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 208000016261 weight loss Diseases 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 6
- 210000003781 tooth socket Anatomy 0.000 description 10
- 238000013459 approach Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining unbalance
- G01M1/16—Determining unbalance by oscillating or rotating the body to be tested
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating unbalance
- G01M1/34—Compensating unbalance by removing material from the body to be tested, e.g. from the tread of tyres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating unbalance
- G01M1/36—Compensating unbalance by adjusting position of masses built-in the body to be tested
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- Testing Of Balance (AREA)
Abstract
The invention relates to the technical field of dynamic balance detection and discloses a dynamic balance detection platform for mechanical parts with adjustable weights, which comprises a base station, wherein a first motor is arranged on the base station, a mounting seat is connected to the first motor in a transmission way, a main shaft is arranged on the mounting seat, a part to be detected is detachably fixed on the main shaft, a vibration sensor and a self-balancing mechanism are arranged on the mounting seat, and the self-balancing mechanism is used for balancing the mounting seat; when the dynamic balance detection platform is used, the vibration sensor in the prior art is utilized to perform vibration detection on the mounting seat, once the set value is exceeded, the self-balancing mechanism is started to perform balance adjustment on the mounting seat of the bearing main shaft, so that the vibration of the mounting seat is reduced as much as possible when the mounting seat rotates on the main shaft to detect the part, the effects of stably bearing the main shaft and the part to be detected are achieved, and the accuracy of dynamic balance detection of the part is improved.
Description
Technical Field
The invention relates to the technical field of dynamic balance detection, in particular to a dynamic balance detection platform for a mechanical part with an adjustable counterweight.
Background
In rotating machines and parts, vibration problems such as hubs, brake discs, shafts, rotors, etc. have become a prominent technical problem, and have important effects on the life, reliability, running performance, machining accuracy, etc. of the machine. And because the defect problem of the produced material or blank is difficult to avoid, and the reserved error in the subsequent finish machining and assembly process, the mechanical part can generate centrifugal inertia force when rotating and acts on the main shaft and the mechanical foundation thereof to cause deformation and vibration, thereby causing certain vibration, causing abrasion and affecting the service life. Dynamic balance is to determine the size and position of rotor unbalance by measuring part vibration and a certain balance algorithm, and reduce the unbalance amount by weighting or de-weighting at the corresponding position.
Chinese patent CN2021200227434 discloses a dynamic balance testing platform, including the platform bottom plate, the curb plate is installed to the bilateral symmetry in the middle of the platform bottom plate, installs the fixing base between the curb plate, installs the cover die cavity on the fixing base, and the fixing base bottom sets up locking round nut, and shaft coupling sub-assembly is installed to locking round nut bottom, and shaft coupling sub-assembly bottom transmission is connected with servo motor, and dynamic balance digital display meter assembly is installed respectively on both sides curb plate top one side, and dynamic balance digital display meter assembly one side all is provided with the measuring stick, and the jump ring is prevented to measuring stick one end, and the measuring stick other end and cover die cavity butt in both sides.
According to the technical scheme, the dynamic balance of the product to be measured is automatically detected through the dynamic balance digital display meter assemblies on the two sides and the measuring rod, and the digital display touch control combined cabinet can automatically display the weight and the coordinates and the distance of the unbalanced point, so that the subsequent weight is convenient; however, the fixing seat is not considered as the bearing platform, and even the unbalanced defect left in design is in an unbalanced state due to uneven manufacturing materials, errors generated in the processing and assembling processes, so that centrifugal inertial force generated by each mass point of the bearing platform cannot be mutually counteracted when the main shaft rotates, and the centrifugal inertial force acts on the bearing platform through the bearing to cause vibration, thereby influencing the detection result of the dynamic balance of the part.
Disclosure of Invention
The invention aims to provide a dynamic balance detection platform for a mechanical part with an adjustable counterweight, which solves the following technical problems:
and the balance adjustment is carried out on the bearing platform, so that the vibration of the bearing platform and the influence on the main shaft are reduced, and the accuracy of the dynamic balance detection result of the part is improved.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a mechanical part dynamic balance testing platform of adjustable counter weight, includes the base station, install motor No. one on the base station, the transmission is connected with the mount pad on the motor No. one, install the main shaft on the mount pad, can dismantle on the main shaft and be fixed with the part that awaits measuring, be provided with vibration sensor and self-balancing mechanism on the mount pad, self-balancing mechanism is used for balancing the mount pad.
Through the technical scheme, the self-balancing mechanism is utilized to balance and adjust the mounting seat of the bearing main shaft, so that the mounting seat is prevented from vibrating as far as possible when the main shaft rotates to detect the part.
As a further scheme of the invention: the self-balancing mechanism includes:
the gear ring is rotatably arranged on the mounting seat,
the swing arm is movably connected to the inner side wall of the gear ring, and the angle of the swing arm is adjusted by the adjusting assembly;
the sliding grooves are provided with a plurality of sliding grooves and are distributed on the mounting seat at equal intervals, and the sliding grooves are connected with the weight parts in a sliding manner;
the second motor is arranged in a groove formed in the side wall of the base station;
the driving gear is meshed with the outer side of the gear ring, and the driving gear is connected to the second motor in a transmission mode.
Through the technical scheme, a specific self-balancing mechanism is provided, and the positions of the weight pieces on the mounting seat are adjusted through the meshing transmission of the gear and the gear ring, so that the mounting seat is enabled to approach to balance as much as possible.
As a further scheme of the invention: the adjusting assembly includes:
the swing arm is connected to the gear ring through the hinge shaft, and a limiting part is fixed at the upper end of the hinge shaft;
the adjusting gear is connected to the top of the hinge shaft through a key and can slide on the hinge shaft along the key;
the limiting tooth groove is formed on the tooth ring and is concentric with the hinge shaft;
the third motor is in transmission connection with a transmission gear, and the transmission gear is meshed with the adjusting gear;
and the magnetic force component is positioned in the limiting tooth groove and controls the lifting of the adjusting gear.
Through the technical scheme, a specific structure of the adjusting component is provided, the posture of the swing arm when meeting different weight pieces is changed by utilizing the magnetic component, and the purpose of adjusting or not adjusting the weight pieces to different degrees is achieved.
As a further scheme of the invention: the magnetic assembly includes:
the electromagnet is arranged at the bottom of the limiting tooth groove;
the permanent magnet ring is fixedly arranged on the bottom surface of the adjusting gear.
Through above-mentioned technical scheme, magnetic force subassembly is used for two kinds of postures that the real-time conversion swing arm is fixed and is floated, reaches different regulation purposes.
As a further scheme of the invention: and the gear ring is provided with an angle sensor which is used for measuring the rotation angle of the adjusting gear.
Through the technical scheme, the angle sensor is used for detecting the angle of the adjusting gear in the limiting tooth groove, so that the purpose of accurate control is achieved.
As a further scheme of the invention: and one side of the base station is also provided with a weight reducing mechanism, and the weight reducing mechanism is used for reducing weight of unbalanced parts.
Through the technical scheme, dynamic balance detection and re-balance after weight reduction are combined, the working procedures are saved, and the detection efficiency of parts is improved.
The weight-reducing mechanism includes:
the multi-shaft linear motor module is arranged on the rack;
the cutting tool is detachably fixed on the multi-axis linear motor module;
the dynamic balance digital display meter assembly is arranged on the base station, a connecting rod is arranged on one side of the dynamic balance digital display meter assembly, a measuring probe is arranged at the end part of the connecting rod, the measuring probe is connected with a sensing guide rod, and the sensing guide rod is positioned inside the connecting rod.
By the technical scheme, a specific weight reducing mechanism is provided, so that the weight of the part is reduced by cutting in the same step during detection, and the part reaches an equilibrium state;
as a further scheme of the invention: and the side wall of the base station is provided with an anti-falling component, and the anti-falling component is used for guiding the part allowance cut by the weight reducing mechanism to the outer side of the base station.
Through above-mentioned technical scheme, through preventing falling the subassembly, the part allowance direction outside that will cut down prevents to fall on the mount pad and influences the removal of weight spare and the balance of mount pad, protects the balanced state of mount pad to reduce the influence to the main shaft, the side improves the accuracy of part testing result.
As a further scheme of the invention: the anti-falling assembly comprises a protective cover, a through groove is formed in the middle of the protective cover, two sides of the protective cover are movably connected to the side wall of the base, the edge of the protective cover extends out of the mounting seat, and the edge of the protective cover, which is close to the side wall of the base, is curled upwards.
Through above-mentioned technical scheme, protection casing simple structure, it is effectual to lead to the part surplus that cuts down, and the practicality is high.
As a further scheme of the invention: the inner side of the protective cover is fixedly provided with a side plate, the gear ring is fixedly provided with a push rod, the top of the push rod is contacted with the side plate, and the height of the push rod is larger than the distance value between the side plate and the gear ring when the side plate is horizontal.
As a further scheme of the invention: the drop prevention assembly further includes:
the two piston cylinders are symmetrically distributed and are detachably fixed on the side wall of the base;
the piston rod is movably connected with the piston cylinder in a sealing way, and the piston rod is elastically connected with the side wall of the piston cylinder through a spring;
the air outlet pipes are fixedly communicated with one sides, facing away from the piston cylinder, of the two air outlet pipes, the air outlet ends of the two air outlet pipes face the protective cover, and the extension lines of the two air outlet pipes are in a crossed state;
the second motor is a double-shaft motor, a cam is connected to the shaft end of the top in a transmission mode, and the cam intermittently extrudes piston rods on two sides.
Through the technical scheme, the protection cover is subjected to cross intermittent air blowing by utilizing the driving of the double-shaft motor, and the outflow of the cutting allowance on the protection cover is accelerated by utilizing the air flow.
The invention has the beneficial effects that:
when the dynamic balance detection platform is used, the vibration sensor in the prior art is utilized to perform vibration detection on the mounting seat, once the set value is exceeded, the self-balancing mechanism is started to perform balance adjustment on the mounting seat of the bearing main shaft, so that the vibration of the mounting seat is reduced as much as possible when the mounting seat rotates on the main shaft to detect the part, the effects of stably bearing the main shaft and the part to be detected are achieved, and the accuracy of dynamic balance detection of the part is improved;
according to the invention, through the action of the magnetic assembly, the two states of the adjusting gear, namely the limiting gear slot and the meshing transmission with the transmission gear, are rapidly switched, the working state of the swing arm is changed in real time, so that the swing arm can adapt to different requirements, the position of each weight piece on the mounting seat is further rapidly adjusted, and the purpose that the mounting seat approaches to balance is achieved;
when the dynamic balance detection is carried out on the part to be detected, the multi-axis linear motor module is started to drive the cutting tool to move to the surface of the part to be detected, so that the allowance on the surface of the part to be detected is removed, the part to be detected can reach dynamic balance more quickly, the dynamic balance detection and the cutting processing are organically combined, the middle transportation and installation process is omitted, and the dynamic balance detection and correction efficiency of the part to be detected is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a three-dimensional view of an extraction anti-fall assembly of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a three-dimensional view of the present invention;
FIG. 4 is an exploded view of the present invention;
fig. 5 is a schematic diagram of the positions of an electromagnet and a permanent magnet ring in the present invention.
Description of the drawings: 1. a base station; 2. a motor I; 3. a mounting base; 4. a main shaft; 5. a self-balancing mechanism; 51. a gear ring; 52. swing arms; 53. an adjustment assembly; 531. a hinge shaft; 532. a limiting piece; 533. an adjusting gear; 534. limiting tooth grooves; 535. a third motor; 536. a transmission gear; 537. an electromagnet; 538. a permanent magnet ring; 54. a chute; 55. a weight member; 56. a motor II; 57. a drive gear; 6. a weight-reducing mechanism; 61. a frame; 62. a multi-axis linear motor module; 63. a cutting tool; 64. dynamic balance digital display meter assembly; 65. a measurement probe; 7. an anti-falling assembly; 71. a protective cover; 72. a through groove; 73. a piston cylinder; 74. a piston rod; 75. an air outlet pipe; 76. a cam; 8. a side plate; 9. and (5) a push rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the invention is a dynamic balance detection platform for a mechanical part with adjustable counterweight,
including base 1, install motor No. 2 on the base 1, the transmission is connected with mount pad 3 on motor No. 2, install spindle 4 on the mount pad 3, can dismantle on the spindle 4 and be fixed with the part that awaits measuring, be provided with vibration sensor and self-balancing mechanism 5 on the mount pad 3, self-balancing mechanism 5 is used for balancing mount pad 3.
In this embodiment, when using the dynamic balance detection platform, the vibration sensor in the prior art is utilized to perform vibration detection on the mounting seat 3, once the set value is exceeded, the self-balancing mechanism 5 is started to perform balance adjustment on the mounting seat 3 carrying the spindle 4, so that when the spindle 4 rotates to detect the part, the vibration of the mounting seat 3 is reduced as much as possible, the effect of stably carrying the spindle 4 and the part to be detected is achieved, and the accuracy of the dynamic balance detection of the part is improved.
As a further scheme of the invention: the self-balancing mechanism 5 includes:
a gear ring 51, said gear ring 51 being rotatably mounted on said mounting 3,
the swing arm 52 is movably connected to the inner side wall of the gear ring 51, and the angle of the swing arm 52 is adjusted by the adjusting component 53;
the sliding groove 54 is provided with a plurality of sliding grooves 54 and is equidistantly distributed on the mounting seat 3, and the sliding groove 54 is connected with a weight piece 55 in a sliding manner;
the second motor 56 is arranged in a groove formed in the side wall of the base station 1;
the driving gear 57, the driving gear 57 is meshed with the outer side of the gear ring 51, and the driving gear 57 is connected to the second motor 56 in a transmission manner.
In this embodiment, the second motor 56 drives the driving gear 57 to rotate, the driving gear 57 is meshed with the gear ring 51 to drive, the gear ring 51 drives the inner swing arm 52 to move circumferentially, because the swing arm 52 is of an arc structure, the swing arm 52 pushes the weight 55 to slide along the chute 54 in the process of contacting the swing arm 52 with the weight 55, so that one weight 55 moves to the side close to the main shaft 4 first, if vibration becomes larger, the second motor 56 reverses to indicate an error adjustment, the weight 55 is pushed back to the original position, the position of each weight 55 is sequentially adjusted until the vibration becomes smaller, if the vibration still becomes larger or does not change, the weight 55 is sequentially pushed away from the main shaft 4 until the position of the weight 55 with smaller vibration is found, and the positions of two adjacent weights 55 are finely adjusted according to the position until the vibration is minimum, so that the mounting seat 3 approaches to balance as much as possible;
it should be noted that, the angle of the swing arm 52 is adjusted by the adjusting component 53, and the angle of the swing arm 52 determines the moving distance for pushing the weight;
several vibration sensors can be distributed equidistantly, the mounting seat 3 is subjected to multipoint detection, the area between two adjacent vibration sensors is divided into a detection area, and the positions of the weight loss parts in the area are adjusted in a targeted manner for the area with large detection values, so that the mounting seat 3 approaches to balance more quickly.
As a further scheme of the invention: the adjustment assembly 53 includes:
the swing arm 52 is connected to the gear ring 51 through the hinge shaft 531, and a limiting piece 532 is fixed at the upper end of the hinge shaft 531;
an adjusting gear 533, the adjusting gear 533 being connected to the top of the hinge shaft 531 by a key, the adjusting gear 533 being capable of sliding on the hinge shaft 531 along the key;
a limiting tooth slot 534, wherein the limiting tooth slot 534 is arranged on the gear ring 51 and is concentric with the hinge shaft 531;
a third motor 535, wherein the third motor 535 is in transmission connection with a transmission gear 536, and the transmission gear 536 is meshed with the adjusting gear 533;
and the magnetic force component is positioned in the limiting tooth slot 534 and controls the lifting of the adjusting gear 533.
In this embodiment, when the swing arm 52 needs to work, the magnetic assembly is used to place the adjusting gear 533 in the limiting tooth slot 534, so as to limit the swing arm 52, and at this time, the responsibility of pushing the weight 55 to displace can be fulfilled;
when the swing arm 52 needs to adjust the angle in the working state, the adjusting gear 533 is pushed out of the limiting tooth socket 534 through the magnetic force assembly until being blocked by the limiting piece 532, at the moment, the adjusting gear 533 and the adjusting gear 533 are in a meshed state, the transmission gear 536 is driven by the third motor 535 to rotate, the transmission gear 536 drives the adjusting gear 533 to deflect, the adjusting gear 533 is connected through a key to drive the hinge shaft 531 to deflect, the hinge shaft 531 drives the fixed swing arm 52 to swing, the purpose of adjusting the angle of the swing arm 52 is achieved, after adjustment is finished, the adjusting tooth is pulled back into the limiting tooth socket 534 through the magnetic force assembly, limiting of the swing arm 52 is achieved, at the moment, the displacement distance of the weight piece 55 pushed by the swing arm 52 can be changed, and fine adjustment of the weight piece 55 is carried out;
when the swing arm 52 does not need to work, the motor 535 of the third number is closed, the adjusting gear 533 stops rotating and is in a free state, the magnetic assembly pushes the adjusting gear 533 out of the limiting tooth socket 534 until being blocked by the limiting piece 532, at the moment, the adjusting gear 533 and the adjusting gear 533 are in a meshed state and are also in a free state, and when the swing arm 52 meets the weight piece 55, the swing arm 52 can be passively contracted back to the inner side of the gear ring 51, so that the function of pushing the weight piece 55 to displace is not exerted;
according to the invention, through the action of the magnetic assembly, the two states of the regulating gear 533 which are limited by the limiting tooth socket 534 and meshed with the transmission gear 536 are rapidly switched, the working state of the swing arm 52 is changed in real time, so that the swing arm 52 can adapt to different requirements, the position of each weight piece 55 on the mounting seat 3 is further rapidly regulated, and the purpose that the mounting seat 3 approaches to balance is achieved.
As a further scheme of the invention: the magnetic assembly includes:
an electromagnet 537, wherein the electromagnet 537 is arranged at the bottom of the limit tooth slot 534;
a permanent magnet ring 538, wherein the permanent magnet ring 538 is fixedly arranged on the bottom surface of the adjusting gear 533.
Through the technical scheme, when the adjusting gear 533 is needed to be meshed with the transmission by utilizing the magnetic transformation of the electromagnet 537, the electromagnet 537 and the permanent magnet ring 538 are magnetically repelled, so that the aim of pushing the adjusting gear 533 out of the limiting tooth slot 534 is fulfilled; when the adjusting gear 533 is required to be limited, the electromagnet 537 is magnetically attracted with the permanent magnet ring 538, the purpose of pulling the adjusting gear 533 back to the limiting tooth slot 534 is achieved, the quick change of the magnetism of the electromagnet 537 is utilized to adapt to the state that the adjusting gear 533 enters and exits the limiting tooth slot 534, and the adjusting efficiency of the swing arm 52 to the counterweight 55 is effectively accelerated.
As a further scheme of the invention: the ring gear 51 is mounted with an angle sensor for measuring the rotation angle of the regulating gear 533.
Through the technical scheme, the angle of the adjusting gear 533 in the limiting tooth socket 534 is detected by the angle sensor, the purpose of accurately controlling the adjusting angle of the swing arm 52 is achieved, the position adjustment of the weight piece 55 is more accurate, and the fine balance adjustment of the mounting seat 3 is accelerated by the side face.
As a further scheme of the invention: a weight reducing mechanism 6 is further installed on one side of the base 1, and the weight reducing mechanism 6 is used for reducing weight of unbalanced parts.
As a further scheme of the invention: the weight reducing mechanism 6 includes:
the device comprises a frame 61, wherein a double-shaft or triaxial linear motor module is arranged on the frame 61, and the selection is carried out according to actual use requirements;
a cutting tool 63, wherein the cutting tool 63 is detachably fixed on the multi-axis linear motor module 62;
the dynamic balance digital display meter assembly 64, the dynamic balance digital display meter assembly 64 is installed on the base station 1, a connecting rod is installed on one side of the dynamic balance digital display meter assembly, a measuring probe 65 is arranged at the end of the connecting rod, the measuring probe 65 is connected with a sensing guide rod, and the sensing guide rod is located inside the connecting rod.
In this embodiment, when in use, the measuring probe 65 is abutted against the surface of the part to be measured, the first motor 2 drives the spindle 4 to rotate, the spindle 4 drives the part to be measured to rotate, the measuring probe 65 is used for detecting the dynamic balance of the part to be measured in a rotating state, the multi-axis linear motor module 62 is started to drive the cutting tool 63 to move to the surface of the part to be measured, and the excess allowance of the part to be measured is cut until the data displayed by the dynamic balance digital display meter assembly 64 meets the requirement;
compared with the prior art that the method comprises the steps of detecting, cutting and then retesting, when the dynamic balance detection is carried out on the part to be detected, the multi-axis linear motor module 62 is started to drive the cutting tool 63 to move to the surface of the part to be detected, so that the allowance of the surface of the part to be detected is removed, the part to be detected can reach dynamic balance more quickly, the dynamic balance detection and the cutting and the retesting are organically combined, the middle transportation and installation process is omitted, and the dynamic balance detection and correction efficiency of the part to be detected is improved.
It should be noted that, the dynamic balance digital display meter assembly 64, the measuring probe 65, and the sensing rod are all cited from chinese patent CN2021200227434, which is the prior art.
As a further scheme of the invention: the side wall of the base station 1 is provided with an anti-falling component 7, and the anti-falling component 7 is used for guiding the part allowance cut by the weight reducing mechanism 6 to the outer side of the base station 1.
As a further scheme of the invention: the anti-falling assembly 7 comprises a protective cover 71, a penetrating groove 72 is formed in the middle of the protective cover 71, the diameter of the penetrating groove 72 is larger than that of the main shaft 4, the protective cover 71 is fixedly connected to the side wall of the base station 1, the edge of the protective cover 71 extends out of the mounting seat 3, and the edge of the protective cover 71, which is close to the side wall of the base station 1, is curled upwards.
In this embodiment, the anti-falling component 7 guides the cut part allowance to the outside, prevents the part allowance from falling on the mounting seat 3 to affect the movement of the weight member 55 and the balance of the mounting seat 3, and protects the balance state of the mounting seat 3, thereby reducing the influence on the spindle 4 and improving the accuracy of the part detection result on the side surface; the protective cover 71 is simple in structure, the mounting seat 3 can be covered, the guiding effect of the cut part allowance is good, the practicability is high, and the arranged flanging can prevent the part allowance from flowing to the gap between the machine table and the mounting seat 3.
As a further scheme of the invention: the inner side of the protective cover 71 is fixedly provided with a side plate 8, the gear ring 51 is elastically connected with a push rod 9 through a spring, the top of the push rod 9 is contacted with the side plate 8, and the height of the push rod 9 is larger than the distance value between the side plate 8 and the gear ring 51.
In this embodiment, the ring gear 51 rotates to drive the ejector rod 9 to move along the circumferential movement track, so that the intermittent ejector shield 71 swings, on one hand, the shield 71 can tilt to one side as much as possible during cleaning, and cleaning is convenient; on the other hand, the height difference can be increased in the working swing, so that the part allowance on the side is accelerated to fall; the arrangement of the springs can be passively pressed down at the movable connection points on the two sides of the protective cover 71, so that the protective cover can smoothly pass over the movable connection points; the cooperation of ejector pin 9 and curb plate 8 lets self-balancing mechanism 5 and prevent falling subassembly 7 carry out the linkage, promotes the guide effect of preventing falling subassembly 7.
As a further scheme of the invention: the drop prevention assembly 7 further includes:
the piston cylinders 73 are symmetrically distributed, and the piston cylinders 73 are detachably fixed on the side wall of the base 1;
the piston rod 74 is movably and hermetically connected with the piston rod 74 in the piston cylinder 73, and the piston rod 74 is elastically connected with the side wall of the piston cylinder 73 through a spring;
the air outlet pipes 75 are fixedly communicated with one side, away from the piston cylinder 73, of each air outlet pipe 75, the air outlet ends of the two air outlet pipes 75 face the protective cover 71, and the extension lines of the air outlet ends are in a crossed state;
the second motor 56 is a double-shaft motor, and a cam 76 is connected to the shaft end at the top in a transmission manner, and the cam 76 intermittently extrudes the piston rods 74 at two sides.
In this embodiment, since the second motor 56 is a dual-shaft motor, the cam 76 can be driven to rotate, and when the cam 76 rotates, the long axis direction of the cam intermittently contacts with the ends of the piston rods 74 at both sides and rapidly extrudes the piston rods 74, so that the piston rods 74 slide in the piston cylinder 73 and compress the internal gas, and the internal gas is ejected from the air outlet ends of the air outlet pipes 75, and since the extension lines of the two air outlet pipes 75 are in a crossed state, the air outlet pipes 75 at both sides can perform crossed intermittent ejection, so that on one hand, the part allowance on the protective cover 71 can be taken away, the adhesion of the part allowance can be reduced, and on the other hand, the part allowance can be accelerated to be guided out in the falling process; further prevent that the part allowance from falling on mount pad 3 influences the removal of counterweight 55 and the balance of mount pad 3, protect mount pad 3's balanced state to reduce the influence to main shaft 4, the side improves the accuracy of part testing result.
The working principle of the invention is as follows:
the driving gear 57 is driven to rotate by the second motor 56, the driving gear 57 is meshed with the gear ring 51 to drive, the gear ring 51 drives the inner swing arm 52 to move circumferentially, and because the swing arm 52 is of an arc structure, the swing arm 52 pushes the weight pieces 55 to slide along the sliding groove 54 in the process of contacting the swing arm 52 with the weight pieces 55, so that one weight piece 55 moves towards one side close to the main shaft 4 first, if vibration becomes larger, the adjustment is wrong, the second motor 56 reverses, the weight pieces 55 are pushed back to the original position, the position of each weight piece 55 is sequentially adjusted until the vibration becomes smaller, if the vibration still becomes larger or does not change, the weight pieces 55 are sequentially pushed away from the main shaft 4 until the position of the weight pieces 55 with the vibration smaller is found, and the positions of the two adjacent weight pieces 55 are finely adjusted according to the position until the vibration is minimum, and the mounting seat 3 is as close to balance as possible;
several vibration sensors can be distributed equidistantly, the mounting seat 3 is subjected to multipoint detection, the area between two adjacent vibration sensors is divided into a detection area, and the positions of the weight loss elements in the area are adjusted in a targeted manner for the area with large detection values, so that the mounting seat 3 approaches balance more quickly;
when the swing arm 52 needs to work, the magnetic assembly is utilized to place the adjusting gear 533 in the limiting tooth slot 534, so as to limit the swing arm 52, and at the moment, the responsibility of pushing the weight piece 55 to displace can be fulfilled;
when the swing arm 52 needs to adjust the angle in the working state, the adjusting gear 533 is pushed out of the limiting tooth socket 534 through the magnetic force assembly until being blocked by the limiting piece 532, at the moment, the adjusting gear 533 and the adjusting gear 533 are in a meshed state, the transmission gear 536 is driven by the third motor 535 to rotate, the transmission gear 536 drives the adjusting gear 533 to deflect, the adjusting gear 533 is connected through a key to drive the hinge shaft 531 to deflect, the hinge shaft 531 drives the fixed swing arm 52 to swing, the purpose of adjusting the angle of the swing arm 52 is achieved, after adjustment is finished, the adjusting tooth is pulled back into the limiting tooth socket 534 through the magnetic force assembly, limiting of the swing arm 52 is achieved, at the moment, the displacement distance of the weight piece 55 pushed by the swing arm 52 can be changed, and fine adjustment of the weight piece 55 is carried out;
when the swing arm 52 does not need to work, the motor 535 of the third number is closed, the adjusting gear 533 stops rotating and is in a free state, the magnetic assembly pushes the adjusting gear 533 out of the limiting tooth socket 534 until being blocked by the limiting piece 532, at the moment, the adjusting gear 533 and the adjusting gear 533 are in a meshed state and are also in a free state, and when the swing arm 52 meets the weight piece 55, the swing arm 52 can be passively contracted back to the inner side of the gear ring 51, so that the function of pushing the weight piece 55 to displace is not exerted;
according to the invention, through the action of the magnetic assembly, the two states of the regulating gear 533 which are limited by the limiting tooth socket 534 and meshed with the transmission gear 536 are rapidly switched, the working state of the swing arm 52 is changed in real time, so that the swing arm 52 can adapt to different requirements, and the position of each weight piece 55 on the mounting seat 3 is further rapidly regulated, and the purpose that the mounting seat 3 approaches to balance is achieved;
specifically, by utilizing the magnetic transformation of the electromagnet 537, when the adjusting gear 533 is required to be meshed with the transmission, the electromagnet 537 and the permanent magnet ring 538 are magnetically repelled, so that the aim of pushing the adjusting gear 533 out of the limiting tooth socket 534 is fulfilled; when the adjusting gear 533 is required to be limited, the electromagnet 537 is magnetically attracted with the permanent magnet ring 538, so that the aim of pulling the adjusting gear 533 back to the limiting tooth slot 534 is fulfilled, the quick change of the magnetism of the electromagnet 537 is utilized to adapt to the state that the adjusting gear 533 enters and exits the limiting tooth slot 534, and the adjusting efficiency of the swing arm 52 on the counterweight 55 is effectively accelerated;
when the dynamic balance detection is carried out on the part to be detected, the multi-axis linear motor module 62 is started to drive the cutting tool 63 to move to the surface of the part to be detected, so that the allowance on the surface of the part to be detected is removed, the part to be detected can reach dynamic balance more quickly, the dynamic balance detection and the cutting processing are organically combined, the middle transportation and installation process is omitted, and the dynamic balance detection and correction efficiency of the part to be detected is improved.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. The utility model provides a mechanical part dynamic balance testing platform of adjustable counter weight, includes base station (1), install motor (2) No. one on base station (1), the transmission is connected with mount pad (3) on motor (2) No. one, install main shaft (4) on mount pad (3), can dismantle on main shaft (4) and be fixed with the part that awaits measuring;
the self-balancing device is characterized in that a vibration sensor and a self-balancing mechanism (5) are arranged on the mounting base (3), and the self-balancing mechanism (5) is used for balancing the mounting base (3).
2. The machine part dynamic balance detection platform of an adjustable counterweight according to claim 1, characterized in that the self-balancing mechanism (5) comprises:
a gear ring (51), wherein the gear ring (51) is rotatably arranged on the mounting seat (3),
the swing arm (52) is movably connected to the inner side wall of the gear ring (51), and the angle of the swing arm (52) is adjusted by the adjusting component (53);
the sliding grooves (54) are formed in the plurality of the sliding grooves (54) and are distributed on the mounting seat (3) at equal intervals, and the sliding grooves (54) are connected with the counterweight (55) in a sliding mode;
the second motor (56) is arranged in a groove formed in the side wall of the base station (1);
the driving gear (57), the driving gear (57) is meshed with the outer side of the gear ring (51), and the driving gear (57) is connected to the second motor (56) in a transmission mode.
3. The machine part dynamic balance detection platform of an adjustable counterweight according to claim 2, characterized in that the adjusting assembly (53) comprises:
the swing arm (52) is connected to the gear ring (51) through the hinge shaft (531), and a limiting piece (532) is fixed at the upper end of the hinge shaft (531);
-an adjusting gear (533), said adjusting gear (533) being connected to the top of said hinge shaft (531) by means of a key, said adjusting gear (533) being slidable along said key on said hinge shaft (531);
the limiting tooth groove (534) is formed in the gear ring (51) and is concentric with the hinge shaft (531);
a third motor (535), wherein the third motor (535) is in transmission connection with a transmission gear (536), and the transmission gear (536) is meshed with the adjusting gear (533);
and the magnetic force component is positioned in the limiting tooth groove (534) and controls the lifting of the adjusting gear (533).
4. The adjustable counterweight machine part dynamic balance detection platform of claim 3, wherein the magnetic assembly comprises:
the electromagnet (537) is arranged at the bottom of the limiting tooth groove (534);
and the permanent magnet ring (538) is fixedly arranged on the bottom surface of the adjusting gear (533).
5. The platform for detecting dynamic balance of a mechanical part with adjustable weights according to claim 3 or 4, characterized in that an angle sensor is mounted on the gear ring (51) for measuring the rotation angle of the adjusting gear (533).
6. The dynamic balance detection platform for the mechanical parts with adjustable weights according to claim 2, wherein a weight reduction mechanism (6) is further installed on one side of the base (1), and the weight reduction mechanism (6) is used for reducing the weight of unbalanced parts;
the weight-reduction mechanism (6) comprises:
the multi-shaft linear motor comprises a frame (61), wherein a multi-shaft linear motor module (62) is arranged on the frame (61);
a cutting tool (63), the cutting tool (63) being detachably fixed to the multi-axis linear motor module (62);
the dynamic balance digital display meter assembly (64), the dynamic balance digital display meter assembly (64) is installed on the base station (1), a connecting rod is installed on one side of the dynamic balance digital display meter assembly (64), a measuring probe (65) is arranged at the end of the connecting rod, the measuring probe (65) is connected with a sensing guide rod, and the sensing guide rod is located inside the connecting rod.
7. The dynamic balance detection platform for the mechanical parts with adjustable weights according to claim 6, wherein an anti-falling component (7) is installed on the side wall of the base station (1), and the anti-falling component (7) is used for guiding the part allowance cut by the weight reducing mechanism (6) to the outer side of the base station (1).
8. The dynamic balance detection platform for the mechanical parts with adjustable weights according to claim 7, wherein the falling prevention assembly (7) comprises a protection cover (71), a through groove (72) is formed in the middle of the protection cover (71), two sides of the protection cover (71) are movably connected to the side wall of the base station (1), the edge of the protection cover (71) extends out of the mounting seat (3), and the edge of the protection cover (71) close to the side wall of the base station (1) is curled upwards.
9. The dynamic balance detection platform for the mechanical parts with adjustable weights according to claim 8, wherein a side plate (8) is fixed on the inner side of the protective cover (71), a push rod (9) is fixed on the gear ring (51), the top of the push rod (9) is contacted with the side plate (8), and the height of the push rod (9) is larger than the distance value between the side plate (8) and the gear ring (51).
10. The platform for detecting dynamic balance of a mechanical part with adjustable weights according to claim 8 or 9, characterized in that said anti-falling assembly (7) further comprises:
the piston cylinders (73) are arranged symmetrically, and the piston cylinders (73) are detachably fixed on the side wall of the base station (1);
the piston rod (74) is movably connected with the piston rod (74) in the piston cylinder (73), and the piston rod (74) is elastically connected with the side wall of the piston cylinder (73) through a spring;
the air outlet pipes (75) are fixedly communicated with one sides, away from the piston cylinders (73), of the air outlet pipes (75), the air outlet ends of the two air outlet pipes (75) face the protective cover (71), and extension lines of the air outlet ends are in a crossed state;
the second motor (56) is a double-shaft motor, a cam (76) is connected to the shaft end of the top in a transmission mode, and the cam (76) intermittently extrudes piston rods (74) on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311012425.XA CN116735083A (en) | 2023-08-11 | 2023-08-11 | Dynamic balance detection platform for mechanical part with adjustable counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311012425.XA CN116735083A (en) | 2023-08-11 | 2023-08-11 | Dynamic balance detection platform for mechanical part with adjustable counterweight |
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| CN116735083A true CN116735083A (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311012425.XA Withdrawn CN116735083A (en) | 2023-08-11 | 2023-08-11 | Dynamic balance detection platform for mechanical part with adjustable counterweight |
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| CN (1) | CN116735083A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115666A (en) * | 2015-07-29 | 2015-12-02 | 山东大学 | Dynamic compensation wheel rim for compensating system unbalance of tyre dynamic balancing testing machine and method |
| CN213336624U (en) * | 2020-11-25 | 2021-06-01 | 成都西菱动力科技股份有限公司 | Dynamic balance detection and weight removal device for crankshaft vibration absorber |
| CN114264413A (en) * | 2021-12-24 | 2022-04-01 | 无锡超通智能制造技术研究院有限公司 | High-precision integrated laser de-weighting automatic balancing device and method |
-
2023
- 2023-08-11 CN CN202311012425.XA patent/CN116735083A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115666A (en) * | 2015-07-29 | 2015-12-02 | 山东大学 | Dynamic compensation wheel rim for compensating system unbalance of tyre dynamic balancing testing machine and method |
| CN213336624U (en) * | 2020-11-25 | 2021-06-01 | 成都西菱动力科技股份有限公司 | Dynamic balance detection and weight removal device for crankshaft vibration absorber |
| CN114264413A (en) * | 2021-12-24 | 2022-04-01 | 无锡超通智能制造技术研究院有限公司 | High-precision integrated laser de-weighting automatic balancing device and method |
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Application publication date: 20230912 |