Main shaft built-in mechanical online dynamic balancing device

Abstract

The utility model discloses a built-in mechanical on-line dynamic balancing device for a main shaft, which belongs to the technical field of main shaft detection and comprises a shell, and a first fixing frame is fixedly connected to the side surface of the shell. The device has the beneficial effects that a second electric hydraulic push rod and a resistance rod are arranged, so that the second electric hydraulic push rod drives a movable rod to descend through a fixed shell, the movable rod drives a ball to be in lap joint with the surface of the main shaft body, and a first motor is started to drive the main shaft body to rotate through a fixed seat; a second motor drives a gear to rotate, the second motor drives a movable plate to move on the surface of a sliding rod through a second fixing frame, the movable plate drives a movable rod to move horizontally, and under the elastic force effect of a telescopic assembly, when a main shaft body is unbalanced, the movable rod moves in a movable hole; the movable rod drives the copper plate to move on the surface of the resistance rod through the connecting block, and the balance of the main shaft body can be known conveniently by observing the current change of the ampere meter.

Description

TECHNICAL FIELD

[0001] The utility model relates to spindle detection technical field, more specifically, it relates to built-in mechanical type online dynamic balancing device of spindle. BACKGROUND

[0002] High speed numerical control machine tool is one of the technical foundation and development direction of equipment manufacturing industry, and the technical level of high speed numerical control machine tool is the sign of measuring the level of a country manufacturing industry, and the spindle is one of the most critical components in all rotating machining numerical control machine tools, and its performance has the vital influence on the machining precision and reliability of the whole machine tool. Rotating unbalance is one of the main factors influencing the rotation precision of the spindle, and realizing dynamic balancing on the spindle has become an indispensable key technology, and it is the ultimate goal to improve the rotation precision, reliability and service life of the spindle, but the balancing inspection of the existing spindle is inconvenient. CONTENT OF THE UTILITY MODEL

[0003] (1) technical problem to be solved

[0004] In view of the deficiency of prior art, the utility model aims at providing built-in mechanical type online dynamic balancing device of spindle, which has the characteristics of convenient balancing detection for the spindle.

[0005] (2) technical scheme

[0006] In order to achieve the above object, the utility model provides a main shaft built -in mechanical type on -line dynamic balancing device, including the casing, the side surface fixed connection of casing has first fixed frame, and first fixed frame is fixedly connected with first motor on, the side surface of casing is provided with bearing, and the inside of bearing is equipped with the rotating shaft, the output of first motor is fixedly connected with one end of rotating shaft, and one end of rotating shaft is fixedly connected with fixed seat, the surface fixedly connected with first electric hydraulic push rod of fixed seat, the number of first electric hydraulic push rod is two, and the bottom of two first electric hydraulic push rod is fixedly connected with limit plate, and the inner wall of two limit plates is overlapped with same main shaft body, the inner wall top of casing is fixedly connected with the toothed plate, the opposite inner wall of casing is fixedly connected with same slide rod, the number of slide rod is two, and the surface of two slide rods is fixedly connected with same movable plate, the top of movable plate is fixedly connected with second fixed frame, and second fixed frame is fixedly connected with second motor on, the output of second motor is fixedly connected with gear, and gear is engaged with toothed plate, the bottom of movable plate is fixedly connected with second electric hydraulic push rod, and the bottom of second electric hydraulic push rod is fixedly connected with fixed shell, the inner wall top of fixed shell is fixedly connected with telescopic component, the bottom of telescopic component is fixedly connected with lifting plate, the lifting plate is fixedly connected with movable rod, the bottom of movable rod is provided with ball, and the surface of ball is overlapped with the surface of main shaft body, the surface of movable rod is fixedly connected with connecting block, the end surface of connecting block is provided with copper plate, the opposite inner wall of casing is fixedly connected with same resistance stick, the surface of copper plate is overlapped with resistance stick, and one end of resistance stick is electrically connected with ammeter.

[0007] When the main shaft built-in mechanical type on-line dynamic balancing device is used, the main shaft body is movably connected in the inside of the fixed seat, the limit plate is fixed with the main shaft body by the first electric hydraulic push rod, the movable rod is lowered by the second electric hydraulic push rod through the fixed shell, the ball is overlapped with the surface of the main shaft body by the movable rod, the main shaft body is rotated by the first motor through the fixed seat, the gear is moved on the surface of the toothed plate by the second motor, the movable plate is moved on the surface of the slide rod by the second motor through the second fixed frame, the movable plate moves the movable rod horizontally, the movable rod is moved in the inside of the movable hole by the elasticity of the telescopic component when the main shaft body is unbalanced, the copper plate is moved on the surface of the resistance stick by the movable rod through the connecting block, and the balance of the main shaft body is known by observing the current change of the ammeter.

[0008] Further, the surface of the fixed seat is provided with a limiting hole, and the limiting hole is movably connected with a limiting rod.

[0009] Further, the bottom of the movable plate is fixedly connected with a first telescopic rod, and the bottom end of the first telescopic rod is fixedly connected on the fixed shell.

[0010] Further, the telescopic assembly comprises a second telescopic rod, the surface of the second telescopic rod movably sleeved with a spring, one end of the second telescopic rod and the spring is fixedly connected on the inner wall of the fixed shell, and the other end of the second telescopic rod and the spring is fixedly connected on the lifting plate.

[0011] Further, the two sides of the lifting plate are fixedly connected with limiting blocks, the opposite inner walls of the fixed shell are provided with limiting grooves, and the limiting blocks are slidably connected in the limiting grooves.

[0012] Further, the surface of the shell is movably connected with a movable door through a hinge, and the surface of the movable door is provided with an observation window, a handle and an operation panel.

[0013] (3) Beneficial effects

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. The main shaft built-in mechanical online dynamic balancing device, through setting first electric hydraulic push rod and limiting plate, through the main shaft body movably connected in the inside of fixed base, through first electric hydraulic push rod drives limiting plate and main shaft body to fix;

[0016] 2. The main shaft built-in mechanical online dynamic balancing device, through setting second electric hydraulic push rod and resistance bar, make second electric hydraulic push rod through fixed shell drive movable rod drop, make movable rod drive ball and the surface of main shaft body lap joint, through starting first motor, make first motor through fixed base drive main shaft body rotation, through second motor drive gear rotation, make gear in the surface of toothed plate activity, make second motor through second fixed frame drive movable plate in the surface of slide rod activity, make movable plate drive movable rod horizontal movement, under the elasticity of telescopic assembly, when main shaft body is unbalanced, make movable rod in the inside of movable hole activity, make movable rod through connecting block drive copper plate in the surface of resistance bar activity, through observing the current change of ammeter, it is convenient to know the balance of main shaft body. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art, and obviously, the drawings in the following description are only one embodiment of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0018] Figure 1The utility model discloses a three -dimensional section structure schematic diagram;

[0019] Figure 2 The utility model discloses Figure 1 The utility model discloses an enlarged structure schematic diagram of A department in the middle;

[0020] Figure 3 The utility model discloses an enlarged structure schematic diagram of telescopic subassembly in the utility model;

[0021] Figure 4 The utility model discloses a three -dimensional structure schematic diagram.

[0022] The utility model discloses a three -dimensional structure schematic diagram.

[0023] 1, shell;2, first motor;3, fixed seat;4, first electric hydraulic push rod;5, limit board;6, main shaft body;7, toothed plate;8, slide bar;9, second fixed frame;10, second motor;11, gear;12, movable plate;13, second electric hydraulic push rod;14, first telescopic rod;15, fixed shell;16, telescopic subassembly;161, second telescopic rod;162, spring;17, lifting plate;18, movable rod;19, resistance bar;20, connecting block;21, copper plate;22, movable hole;23, limit slot;24, limit block;25, movable door;26, observation window;27, limit rod. Specific implementation

[0024] In order to make the technical means, creation features, reach the purpose and the effect of the utility model easy to understand, the following clear, complete description of the technical scheme in the specific implementation of the utility model is carried out to further illustrate the utility model, obviously, the specific implementation described is only a part of the implementation of the utility model, and is not all the style.

[0025] Embodiment:

[0026] The following will be combined with the Figures 1-4 The utility model is further explained in detail.

[0027] Please refer to Figures 1-4The utility model provides a technical scheme: main shaft built -in mechanical type on -line dynamic balancing device, including casing 1, the side surface fixed connection of casing 1 has first fixed frame, and first fixed frame is fixedly connected with first motor 2, the side surface of casing 1 is provided with bearing, and the inside of bearing is provided with shaft, the output of first motor 2 is fixedly connected with the one end of shaft, and one end of shaft is fixedly connected with fixed base 3, the surface fixedly connected with first electric hydraulic push rod 4 of fixed base 3, the number of first electric hydraulic push rod 4 is two, the bottom of two first electric hydraulic push rod 4 is fixedly connected with limit stop 5, and the inner wall of two limit stop 5 is overlapped with same main shaft body 6, by setting first electric hydraulic push rod 4 and limit stop 5, by main shaft body 6 swing joint in the inside of fixed base 3, by first electric hydraulic push rod 4 drive limit stop 5 and main shaft body 6 are fixed, the inner wall top of casing 1 is fixedly connected with tooth plate 7, the opposite inner wall of casing 1 is fixedly connected with same slide 8, the number of slide 8 is two, the surface of two slide 8 is slidably connected with same movable plate 12, the top of movable plate 12 is fixedly connected with second fixed frame 9, second fixed frame 9 is fixedly connected with second motor 10, the output of second motor 10 is fixedly connected with gear 11, gear 11 is engaged with tooth plate 7, the bottom of movable plate 12 is fixedly connected with second electric hydraulic push rod 13, the bottom of second electric hydraulic push rod 13 is fixedly connected with fixed shell 15, the inner wall top of fixed shell 15 is fixedly connected with telescopic subassembly 16, the bottom of telescopic subassembly 16 is fixedly connected with lifting plate 17, lifting plate 17 is fixedly connected with movable rod 18, the bottom of movable rod 18 is provided with ball, and the surface of ball is overlapped with the surface of main shaft body 6, the surface of movable rod 18 is fixedly connected with connecting block 20, the end surface of connecting block 20 is provided with copper plate 21, the opposite inner wall of casing 1 is fixedly connected with same resistance stick 19, and the surface of copper plate 21 is overlapped with resistance stick 19, and one end electric connection of resistance stick 19 has ammeter, by setting second electric hydraulic push rod 13 and resistance stick 19, make second electric hydraulic push rod 13 drive movable rod 18 to drop through fixed shell 15, make movable rod 18 drive ball and the surface of main shaft body 6 overlap with, by starting first motor 2, make first motor 2 drive main shaft body 6 to rotate through fixed base 3, by second motor 10 drive gear 11 rotates, make gear 11 on the surface of tooth plate 7 activity, make second motor 10 drive movable plate 12 on the surface of slide 8 activity through second fixed frame 9, make movable plate 12 drive movable rod 18 horizontal shift, under the elasticity of telescopic subassembly 16, when main shaft body 6 is unbalanced, make movable rod 18 in movable hole 22 inside activity, make movable rod 18 drive copper plate 21 on the surface of resistance stick 19 activity through connecting block 20, by observing the current change of ammeter, it is convenient to know the balance of main shaft body 6.

[0028] Specific, the surface of the fixed seat 3 is provided with a limiting hole, and the inside of the limiting hole is movably connected with a limiting rod 27, and the bottom end of the limiting rod 27 is fixed to the surface of the limiting plate 5.

[0029] By adopting the above technical scheme, the limiting rod 27 slides in the limiting hole, and the limiting plate 5 is limited.

[0030] Specifically, the bottom of the movable plate 12 is fixedly connected with a first telescopic rod 14, and the bottom end of the first telescopic rod 14 is fixedly connected to the fixed shell 15.

[0031] By adopting the above technical scheme, the first telescopic rod 14 limits the fixed shell 15.

[0032] Specifically, the telescopic assembly 16 includes a second telescopic rod 161, the surface of the second telescopic rod 161 movably sleeved with a spring 162, one end of the second telescopic rod 161 and the spring 162 is fixedly connected to the inner wall of the fixed shell 15, the other end of the second telescopic rod 161 and the spring 162 is fixedly connected to the lifting plate 17.

[0033] By adopting the above technical scheme, the telescopic assembly 16 plays a role of telescopic elasticity.

[0034] Specifically, the two sides of the lifting plate 17 are fixedly connected with a limiting block 24, and the opposite inner walls of the fixed shell 15 are provided with a limiting groove 23, and the limiting block 24 is slidably connected in the limiting groove 23.

[0035] By adopting the above technical scheme, the limiting block 24 slides in the limiting groove 23, and the lifting plate 17 is limited.

[0036] Specifically, the surface of the shell 1 is movably connected with a movable door 25 through a hinge, and the surface of the movable door 25 is provided with an observation window 26, a handle and an operation panel.

[0037] By adopting the above technical scheme, the movable door 25 plays a role of protection, and the observation window 26 is convenient for observing the working condition in the shell 1.

[0038] The working principle of the utility model is:

[0039] The utility model discloses a first motor 2 is started, makes first motor 2 drive main shaft axle body 6 rotation through fixed seat 3, through the second motor 10 drive gear 11 rotation, makes gear 11 on the surface activity of toothed plate 7, makes second fixed frame 9 drive movable plate 12 on the surface activity of slide 8 through second motor 10, makes movable plate 12 drive movable rod 18 horizontal removal, under the elasticity of telescopic component 16, when main shaft axle body 6 is unbalanced, makes movable rod 18 in the inside activity of movable hole 22, makes copper plate 21 on the surface activity of resistance bar 19 through connecting block 20 drive movable rod 18, through observing the current change of ammeter, can know the balance of main shaft axle body 6.

[0040] The embodiment is only an explanation of the utility model, and does not limit the utility model, and the person skilled in the art can make modification without creative contribution according to the need after reading the specification, but as long as in the right claim range of the utility model, is protected by the patent law.

Claims

1. A built-in mechanical on-line dynamic balancing device for a main shaft, comprising a housing (1), characterized in that: The side of the shell (1) is fixedly connected with a first fixing frame, and a first motor (2) is fixedly connected to the first fixing frame, a bearing is arranged on the side of the shell (1), and a rotating shaft is arranged in the bearing, the output end of the first motor (2) is fixedly connected with one end of the rotating shaft, and one end of the rotating shaft is fixedly connected with a fixing seat (3), a first electric hydraulic push rod (4) is fixedly connected to the surface of the fixing seat (3), the number of the first electric hydraulic push rods (4) is two, the bottom ends of the two first electric hydraulic push rods (4) are fixedly connected with limit plates (5), the inner walls of the two limit plates (5) are overlapped with a same main shaft body (6), a toothed plate (7) is fixedly connected to the inner wall top of the shell (1), a same slide rod (8) is fixedly connected to the opposite inner walls of the shell (1), the number of the slide rods (8) is two, a same movable plate (12) is slidingly connected to the surfaces of the two slide rods (8), a second fixing frame (9) is fixedly connected to the top of the movable plate (12), a second motor (10) is fixedly connected to the second fixing frame (9), a gear (11) is fixedly connected to the output end of the second motor (10), the gear (11) is engaged with the toothed plate (7), a second electric hydraulic push rod (13) is fixedly connected to the bottom of the movable plate (12), a fixing shell (15) is fixedly connected to the bottom end of the second electric hydraulic push rod (13), a telescopic assembly (16) is fixedly connected to the inner wall top of the fixing shell (15), a lifting plate (17) is fixedly connected to the bottom end of the telescopic assembly (16), a movable rod (18) is fixedly connected to the lifting plate (17), a plurality of balls are arranged on the bottom end of the movable rod (18), the surfaces of the balls are overlapped with the surface of the main shaft body (6), a connecting block (20) is fixedly connected to the surface of the movable rod (18), a copper plate (21) is arranged on the end face of the connecting block (20), a same resistance stick (19) is fixedly connected to the opposite inner walls of the shell (1), the surface of the copper plate (21) is overlapped with the surface of the resistance stick (19), and one end of the resistance stick (19) is electrically connected with an ammeter.

2. The built-in mechanical on-line dynamic balancing device of the main shaft according to claim 1, characterized in that: A limiting hole is formed in the surface of the fixing seat (3), and a limiting rod (27) is movably connected in the limiting hole.

3. The spindle built-in mechanical on-line dynamic balancing device according to claim 1, characterized in that: A first telescopic rod (14) is fixedly connected to the bottom of the movable plate (12), and the bottom end of the first telescopic rod (14) is fixedly connected to the fixing shell (15).

4. The spindle built-in mechanical on-line dynamic balancing device according to claim 1, characterized in that: The telescopic assembly (16) comprises a second telescopic rod (161), a spring (162) is movably sleeved on the surface of the second telescopic rod (161), one end of the second telescopic rod (161) and the spring (162) is fixedly connected to the inner wall of the fixing shell (15), and the other end of the second telescopic rod (161) and the spring (162) is fixedly connected to the lifting plate (17).

5. The spindle built-in mechanical on-line dynamic balancing device according to claim 1, characterized in that: Both sides of the lifting plate (17) are fixedly connected with limiting blocks (24), and opposite inner walls of the fixed shell (15) are both provided with limiting grooves (23), and the limiting blocks (24) are slidingly connected in the limiting grooves (23).

6. The spindle built-in mechanical on-line dynamic balancing device according to claim 1, characterized in that: The surface of the shell (1) is movably connected with a movable door (25) through a hinge, and the surface of the movable door (25) is provided with an observation window (26), a handle and an operation panel.

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