CN110398309B

CN110398309B - Electric spindle tool clamp

Info

Publication number: CN110398309B
Application number: CN201910692915.6A
Authority: CN
Inventors: 戴野; 王建辉; 宣立宇; 温万健
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2022-02-18
Anticipated expiration: 2039-07-30
Also published as: CN110398309A

Abstract

The invention relates to an electric spindle tool clamp, which mainly comprises the following components: the shell, the hand wheel, the screw rod, the slider, the dead lever, the member, upper and lower grip block, calibrated scale. The shell is fixedly connected with the hand wheel and the screw rod to form an integral piece. Clockwise and anticlockwise threads are arranged on the left and right sides of the screw rod, the screw rod is connected with the two sliding blocks, the sliding blocks are fixedly connected with the fixing rod through holes, and the fixing rod is fixedly connected with the shell. The slider is connected with two member through the pin, and two member are connected with last grip block through the pin. The upper clamping block is provided with a dial, the left and right pointers of the dial are connected with the two rods through connecting rods, and the lower end of the dial is provided with a miniature pressure sensor corresponding to a reading disc above the dial. Compared with the prior art, the invention is connected by partial pins, thereby being convenient to fix and disassemble; the clamping width of the clamping piece is adjusted by rotating the hand wheel, so that the electric spindle can adapt to the installation of electric spindles with different shaft diameters; the clamping force borne by the electric spindle and the shaft diameter of the electric spindle can be known by observing the dial.

Description

Electric spindle tool clamp

Technical Field

The invention relates to a tool clamp, in particular to an electric spindle tool clamp.

Background

During the actual machining of the electric spindle, the clamp is an important ring for quickly fastening the workpiece and keeping the machine tool, the tool and the electric spindle in correct relative positions. However, during the assembly process of replacing the electric spindle, the clamping using the conventional clamp is often difficult to disassemble. Simultaneously, when changing the different electric main shaft of model, different clamping face also need be changed along with the change of footpath to different main shafts, still need adjust the clamp force simultaneously, so will lengthen man-hour greatly, reduce efficiency, can also be very inconvenient moreover.

Disclosure of Invention

The invention aims to provide an electric spindle tool clamp which is simple to disassemble and high in adaptability, so as to solve the technical problems in the prior art.

In order to solve the technical problems, the invention adopts the following basic technical scheme:

the invention discloses an electric spindle tool clamp which comprises a shell, a hand wheel and a screw rod, wherein the shell is fixedly connected with the hand wheel and the screw rod to form an integrated part which is connected through a pin hole, so that rotation can be realized.

Preferably, the left part and the right part of the screw rod are respectively provided with clockwise threads and anticlockwise threads, the screw rod is connected with two sliding blocks with threaded holes on the inner sides, the sliding blocks are connected with a fixed rod through the holes to fix the position, and the fixed rod is fixedly connected with the shell.

Preferably, the two sliding blocks are connected with the two rod pieces through pins, and the two rod pieces are connected with the upper clamping block through pins. The hand wheel is shaken clockwise to realize that the clamping block moves downwards, and the hand wheel is shaken anticlockwise to realize that the clamping block moves upwards so as to adapt to different shaft diameters.

Preferably, the upper clamping block is provided with a dial which is fixedly connected through screws, a left pointer and a right pointer on the dial are connected with the two rod pieces through two connecting rods, and the lower end of the dial is provided with a miniature pressure sensor which corresponds to a reading disc above the dial. The clamping force borne by the electric spindle can be known by observing the upper part of the dial, and the shaft diameter of the electric spindle can be known by observing the two sides of the dial.

Compared with the prior art, the invention has the following technical effects:

1. the fixing and dismounting are convenient;

2. the mounting of electric main shafts with different shaft diameters can be conveniently adapted;

3. the clamping force borne by the electric spindle and the shaft diameter of the electric spindle can be conveniently known.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1: simplified diagram of electric spindle tool fixture

FIG. 2 is a drawing: dial enlarged view of electric spindle tool fixture

FIG. 3: enlarged view of upper clamping block of electric spindle tool fixture

FIG. 4 is a drawing: enlarged view of lower clamping block of electric spindle tool fixture

In the figure: the pressure sensor comprises a shell 1, a hand wheel 2, a screw rod 3, a sliding block 4, a fixing rod 5, a rod 6, an upper clamping block 7, a lower clamping block 8, a dial 9, a threaded through hole 10, a threaded through hole 11, a through hole 12, an internal threaded hole 13, a through hole 14, a threaded through hole 15, a connecting rod 16 and a miniature pressure sensor 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an electric main shaft tool clamp which is simple to disassemble and strong in adaptability, is convenient to adapt to the installation of electric main shafts with different shaft diameters when the electric main shafts are clamped, can carry out convenient assembling and disassembling work, and is firm in work.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

The structure of the invention is shown in figure 1, figure 2 and figure 3. The electric spindle tool clamp comprises: the device comprises a shell (1), a hand wheel (2), a screw rod (3), a sliding block (4), a fixing rod (5), a rod piece (6), an upper clamping block (7), a lower clamping block (8), a dial (9), a threaded through hole (10), a through hole (11), an internal threaded hole (12), a through hole (13), a through hole (14), a threaded through hole (15), a connecting rod (16) and a miniature pressure sensor (17).

The shell (1) is fixedly connected with the hand wheel (2) and the screw rod (3) to form an integral piece which is connected through a pin hole, and torque can be transmitted through the hand wheel (2) to realize rotation of the screw rod (3); the left part and the right part of the screw rod (3) are respectively a clockwise thread and an anticlockwise thread, and the fixed rod (5) is fixedly connected on the shell (1) and is relatively static with the shell (1).

Two sliding blocks (4) with internal thread holes and through holes are connected to the screw rod (3) and the fixing rod (5), the through holes are matched with the fixing rod (5) to fix the positions of the sliding blocks (4), the threaded holes are matched with the left and right threads of the screw rod (3) to form spiral transmission, and rotation of the screw rod (3) is converted into translation of the two sliding blocks (4).

The upper ends of the two rod pieces (6) are respectively connected with the two sliding blocks (4) through pins to form a revolute pair; the lower ends of the two rod pieces (6) are connected with the upper clamping block (7) through pins to form a revolute pair, the left and right translation of the two sliding blocks (4) is converted into the up and down movement of the upper clamping block (7) through the two rod pieces (6), and the lower clamping block (8) fixed on the shell is matched to fix the electric spindle.

Go up grip block (7) and have one internal thread hole (12) and two through-holes (14), lower grip block (8) have two through-holes (13) and two screw thread through-holes (15), two through-holes (13) in the lower grip block are used for fixing grip block (8) down on shell (1), two through-holes (14) of grip block (7) are gone up in the cooperation of other screw thread through-hole (15), adopt bolted connection to fix grip block (7) and lower grip block (8) and further press from both sides tightly when pressing from both sides tightly.

The dial (9) is provided with a threaded through hole (10) and two through holes (11), wherein the threaded through hole (10) is matched with an internal threaded hole (12) of the upper clamping block (7), and the dial (9) is fixedly connected with the upper clamping block (7) by adopting a screw; the pointers on the two sides of the dial (9) and the rod (6) are connected by the two through holes (11) through the connecting rod (16) to form a linkage part. When the rod piece (6) moves along with the sliding block (4), the pointer swings in a certain range through the connecting rod (16), and when the movement stops, the pointer hovers at a corresponding position on the dial to indicate the shaft diameter reading of the corresponding electric spindle. The miniature pressure sensor (17) is installed to calibrated scale (9) lower extreme, corresponds with the reading dish above calibrated scale (9), and when last grip block (7) and lower grip block (8) press from both sides tight electricity main shaft, miniature pressure sensor (17) are extrudeed, and the pointer of top reading dish carries out certain swing of range, hovers the corresponding position on calibrated scale at last, indicates the clamp force that the corresponding electricity main shaft received.

The upper clamping block (7) can move downwards by clockwise shaking the hand wheel (2), and the upper clamping block (7) can move upwards by anticlockwise shaking the hand wheel (2) so as to clamp electric spindles with different shaft diameters. The clamping force borne by the electric spindle can be known by observing the upper part of the dial (9), and the shaft diameter of the electric spindle can be known by observing the two sides of the dial (9).

The specific working process of the invention is as follows:

firstly, rotating a counterclockwise rotating hand wheel (2) to move an upper clamping block (7) upwards; then, the electric spindle to be clamped is placed between the upper clamping block (7) and the lower clamping block (8); then, the hand wheel (2) is rotated clockwise, the upper clamping block (7) moves downwards, and the electric spindle to be clamped is fixed between the upper clamping block (7) and the lower clamping block (8) by matching with the lower clamping block (8); and finally, adopting a bolt for connection, and connecting the through hole (13) of the upper clamping block (7) and the threaded through hole (14) of the lower clamping block (8) to clamp the electric spindle. The observation dial (9) obtains the clamping force born by the electric spindle and the shaft diameter of the electric spindle.

Claims

1. A novel electric spindle tool clamp comprises a shell, a hand wheel and a screw rod, wherein the shell is fixedly connected with the hand wheel and the screw rod to form an integrated part which is connected through a pin hole, so that rotation can be realized; the left part and the right part of the screw rod are respectively provided with clockwise threads and anticlockwise threads, the screw rod is connected with two sliding blocks with threaded holes on the inner sides, the sliding blocks are connected with a fixed rod through holes to fix positions, and the fixed rod is fixedly connected with the shell; the two sliding blocks are connected with the two rod pieces through pins, the two rod pieces are connected with the upper clamping block through pins, the clamping block can move downwards by clockwise shaking the hand wheel, and the clamping block can move upwards by anticlockwise shaking the hand wheel so as to adapt to different shaft diameters;

the upper clamping block is provided with a dial which is fixedly connected through screws, a left pointer and a right pointer on the dial are connected with two rod pieces through two connecting rods, the lower end of the dial is provided with a miniature pressure sensor which corresponds to a reading disc above the dial, clamping force borne by the electric spindle can be known by observing the upper part of the dial, and the shaft diameter of the electric spindle can be known by observing two sides of the dial; the dial is provided with a threaded through hole and two through holes, wherein the threaded through hole is matched with an internal threaded hole of the upper clamping block, and the dial is fixedly connected with the upper clamping block by adopting a screw; the pointers on the two sides of the dial and the rod piece are connected by the two through holes through the connecting rod to form a linkage piece; when the rod piece moves along with the sliding block, the pointer swings to a certain extent through the connecting rod, and when the rod piece stops moving, the pointer hovers at a corresponding position on the dial to indicate the shaft diameter reading of the corresponding electric spindle.