CN214109701U - Knife handle with dynamic unbalance adjusting function - Google Patents

Abstract

The utility model discloses a handle of a knife of drive unbalance adjustment function, including the handle of a knife body, install in the adjusting disk of the handle of a knife body, conical surface nut and lock nut install in eccentric block II and eccentric block I of adjusting disk. The utility model discloses with the help of installing in the eccentric block I of adjusting disk and eccentric block II's size and the fixed position adjustment on the adjusting disk and adjusting the dynamic unbalance amount that main shaft rotor was adjusted, can carry out the secondary regulation to the actual dynamic unbalance amount of the rotor system of main shaft under different work condition with pertinence ground, need not in the accommodation process plus actuating mechanism and power, the scheme is simple and easy, and the engineering practicality is strong.

Description

Knife handle with dynamic unbalance adjusting function

Technical Field

The utility model relates to a lathe is handle of a knife for high-speed main shaft, in particular to handle of a knife for high-speed main shaft of lathe of drive unbalanced adjustment function.

Background

With the continuous development of machine tools in the directions of high rotating speed, high precision, high efficiency and the like, the requirement on the rotating speed of the spindle is higher and higher. However, the spindle assembly of the machine tool is affected by manufacturing process, assembly quality, single mass, asymmetric shape of parts and the like, and when the spindle rotates after being integrally assembled, the phenomenon that the center of gravity deviates from the center of the spindle, namely, the spindle rotates and is unbalanced, so that the spindle of the machine tool generates vibration, noise, bearing heating and the like. The vibration of the main shaft and the bearing can be effectively reduced by carrying out dynamic balance checking on the main shaft, so that the aims of reducing the temperature rise of the main shaft and prolonging the service life of the main shaft bearing are fulfilled. In addition, along with the change of the processing working condition, the dynamic unbalance amount of the spindle rotor inevitably changes under different working conditions of spindle rotating speed, cooling, lubrication and the like, so that secondary adjustment of the dynamic unbalance is necessary in a targeted manner.

Disclosure of Invention

The utility model discloses to the not enough of present lathe high-speed handle of a knife for the main shaft, it is simple to provide one kind, can secondary control and compensation main shaft dynamic unbalance, effectively reduce the handle of a knife of main shaft gyration in-process vibration.

The technical scheme for realizing the purpose is as follows: a knife handle with a dynamic unbalance adjusting function comprises a knife handle body, an adjusting disc, an eccentric block II, an eccentric block I, a conical surface nut and a locking nut, wherein the knife handle body comprises a thread I for installing a knife handle blind rivet, a knife handle conical surface for connecting the knife handle and a main shaft, a clamping ring surface for clamping a knife, a positioning conical surface for positioning the adjusting disc, a thread II for installing the adjusting disc and the conical surface nut and a thread III for installing the locking nut;

2 circles of threaded holes are machined in the adjusting disc at equal intervals along the radial direction, the included angle of two adjacent rows of threaded holes in the circumferential direction is 30 degrees, the threaded holes are formed in the center of the adjusting disc, and conical surfaces are arranged at the positions, close to the threaded holes, of the two sides of the adjusting disc;

the adjusting disc is arranged on the cutter handle body through the threads II of the cutter handle body, the conical surface of the adjusting disc is attached to the positioning conical surface of the cutter handle body to realize the positioning of the adjusting disc, the conical surface nut is also arranged on the cutter handle body through the threads II of the cutter handle body, and the conical surface of the conical surface nut is attached to the corresponding conical surface of the adjusting disc to realize the locking and the fixing of the adjusting disc;

the locking nut is arranged on the tool shank body through the thread III of the tool shank body;

the eccentric block I and the eccentric block II are symmetrically fixed on two sides of the adjusting disc respectively by means of bolts;

the taper of the conical surface of the cutter handle is a universal value of 7: 24.

This handle of a knife that drives unbalance adjustment function adjusts and compensates the dynamic unbalance of main shaft rotor subassembly through adjusting the size of installing in the eccentric block I and the eccentric block II of adjusting disk and fixed position on the adjusting disk, need not in the accommodation process plus actuating mechanism and power, realizes simply.

This handle of a knife that drives uneven regulatory function realizes the adjustment disk location with the help of setting up the location conical surface at the handle of a knife body, and adjustment disk installation centering error is little, realizes the axial and the circumference locking of adjustment disk with the help of the screw thread II that sets up on conical surface nut and the handle of a knife body, and the scheme is more practical.

With the help of the tool shank which is arranged on the main shaft and drives the unbalance adjusting function, the actual dynamic unbalance of the rotor system of the main shaft under different working conditions can be adjusted for the second time in a targeted manner, the scheme is simple and feasible, and the engineering practicability is high.

Drawings

FIG. 1 is a view of a tool holder configuration with an imbalance adjustment feature.

Fig. 2 is a partial side view, and fig. 3 is a view showing a structure of a holder body.

In the figure: the novel knife handle comprises a knife handle body (1), an adjusting disc (2), an eccentric block II (3), an eccentric block I (4), a conical surface nut (5), a locking nut (6), a thread I (11), a knife handle conical surface (12), a clamping ring surface (13), a positioning conical surface (14), a thread II (15) and a thread III (16).

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, a knife handle with a dynamic unbalance adjusting function comprises a knife handle body (1), an adjusting disc (2) arranged on the knife handle body (1), a conical nut (5) and a locking nut (6), and an eccentric block II (3) and an eccentric block I (4) arranged on the adjusting disc (2);

the tool handle body (1) comprises a thread I (11) for mounting a tool handle blind rivet, a tool handle conical surface (12) for connecting the tool handle and the main shaft, a clamping ring surface (13) for clamping a tool, a positioning conical surface (14) for positioning the adjusting disc (2), a thread II (15) for mounting the adjusting disc (2) and the conical surface nut (5), and a thread III (16) for mounting the locking nut (6);

2 circles of threaded holes are machined in the adjusting disc (2) at equal intervals along the radial direction, the included angle of two adjacent rows of threaded holes in the circumferential direction is 30 degrees, the center of the adjusting disc (2) is provided with the threaded holes, and conical surfaces are arranged at the positions, close to the threaded holes, of the two sides of the adjusting disc (2);

the adjusting disc (2) is arranged on the knife handle body (1) through a thread II (15) of the knife handle body (1), the conical surface of the adjusting disc (2) is attached to a positioning conical surface (14) of the knife handle body (1) to realize the positioning of the adjusting disc (2), the conical surface nut (5) is also arranged on the knife handle body (1) through the thread II (15) of the knife handle body (1), and the conical surface of the conical surface nut (5) is attached to the corresponding conical surface of the adjusting disc (2) to realize the locking and fixing of the adjusting disc (2);

the locking nut (6) is arranged on the tool handle body (1) through a thread III (16) of the tool handle body (1);

the eccentric block I (4) and the eccentric block II (3) are symmetrically fixed on two sides of the adjusting disc (2) by means of bolts respectively;

the taper of the taper surface (12) of the knife handle is 7: 24.

In the present embodiment: when the tool handle with the unbalance adjusting function works, a proper tool handle rivet and a spring chuck are selected and assembled at first, then the tool handle is installed in a machine tool spindle, an eccentric block II (3) and an eccentric block I (4) are disassembled, spindle rotation is started, vibration and radial runout errors reflecting dynamic unbalance of the spindle are detected, if the dynamic and radial runout return errors in the spindle rotation process are out of limit, the machine is stopped, the eccentric block II (3) and the eccentric block I (4) are added on an adjusting disc (2) in a trial mode, the spindle is started again to detect corresponding dynamic unbalance errors, the process is circulated until the vibration and the radial runout errors reflecting dynamic unbalance are lower than an allowable value, and secondary adjustment of the dynamic unbalance of the spindle is completed.

In the present embodiment: the secondary dynamic unbalance adjustment is carried out on the main shaft by means of the tool handle, the scheme is simple and feasible, the main shaft is operated at different airflow speeds and main shaft rotating speeds to carry out dynamic unbalance adjustment according to different actual processing requirements in the dynamic unbalance adjustment process of the main shaft, the pertinence is strong, and the engineering practicability is strong.

Claims (1)

1. The utility model provides a handle of a knife of drive unbalance adjustment function which characterized in that, it includes: the tool handle comprises a tool handle body (1), an adjusting disc (2) arranged on the tool handle body (1), a conical nut (5) and a locking nut (6), and an eccentric block II (3) and an eccentric block I (4) arranged on the adjusting disc (2);

the tool handle body (1) comprises a thread I (11) for mounting a tool handle blind rivet, a tool handle conical surface (12) for connecting the tool handle and the main shaft, a clamping ring surface (13) for clamping a tool, a positioning conical surface (14) for positioning the adjusting disc (2), a thread II (15) for mounting the adjusting disc (2) and the conical surface nut (5), and a thread III (16) for mounting the locking nut (6);

2 circles of threaded holes are machined in the adjusting disc (2) at equal intervals along the radial direction, the included angle of two adjacent rows of threaded holes in the circumferential direction is 30 degrees, the center of the adjusting disc (2) is provided with the threaded holes, and conical surfaces are arranged at the positions, close to the threaded holes, of the two sides of the adjusting disc (2);

the adjusting disc (2) is arranged on the knife handle body (1) through a thread II (15) of the knife handle body (1), the conical surface of the adjusting disc (2) is attached to a positioning conical surface (14) of the knife handle body (1), the conical surface nut (5) is also arranged on the knife handle body (1) through the thread II (15) of the knife handle body (1), and the conical surface of the conical surface nut (5) is attached to the corresponding conical surface of the adjusting disc (2);

the locking nut (6) is arranged on the tool handle body (1) through a thread III (16) of the tool handle body (1);

the eccentric block I (4) and the eccentric block II (3) are symmetrically fixed on two sides of the adjusting disc (2) by means of bolts respectively;

the taper of the taper surface (12) of the knife handle is 7: 24.

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