CN201076998Y

CN201076998Y - Indexing means for machine tools

Info

Publication number: CN201076998Y
Application number: CNU2007200207017U
Authority: CN
Inventors: 温永林
Original assignee: ZHAOYUAN JINWANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Current assignee: ZHAOYUAN JINWANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority date: 2007-04-02
Filing date: 2007-04-02
Publication date: 2008-06-25
Anticipated expiration: 2017-04-02

Abstract

The utility model relates to a indexing apparatus for machine tool, which is characterized in that a main shaft is arranged in a corresponding hole on the upper part of a housing; an indexing disc is fixed at the rear end of the housing, and the position of the indexing disc can be changed in a certain angle range around the shaft axis of the main shaft; a rocker arm is arranged at the rear end of the main shaft; a bolt mechanism is arranged on the rocker arm utilizing a bolt base and a groove of the rocker arm; the distance of the bolt mechanism and the shaft axis of the main shaft can be regulated; a pin of the bolt mechanism can be moved along the axial direction of the main shaft, and a small cone in the front end of the pin can be accurately inserted into each corresponding hole of the indexing disc; the main shaft can be locked and unlocked by a locking mechanism; a small conicity taper hole in the front end of the main shaft can be connected with the taper shank of a jig clamping the different components; the bolt is pulled, and the main shaft can be rotated to a next indexing position using the handle of the rocker arm; the bolt is let down, and the accurate positioning is finished. The utility model has the advantages of simple structure, convenient operation and low manufacturing cost, which can solve the indexing problem of ordinate component easily.

Description

Indexing device for machine tools

Affiliated technical field

The utility model relates to mechanical processing technique equipment, especially indexing device for machine tools.

Background technology

Some parts requires to process around its center the structures such as hole, tooth, groove of a plurality of five equilibriums in the machine-building, having in the machine components much need be to the processing of the structural element of its axial line five equilibrium, all need to finish processing one by one behind the location of each single key element with indexing mechanism, usually use dividing head to address this problem, dividing head adopts Worm and worm-wheel gearing, by professional plant produced, price is expensive.

Summary of the invention

The purpose of this utility model is the defective that overcomes prior art, and a kind of indexing device for machine tools is provided, and solves the calibration problem of general part.

The purpose of this utility model realizes as follows: indexing device for machine tools is made up of casing, main shaft, index dial, rocking arm, bolt device, locking device.Main shaft is contained in the corresponding aperture on casing top, and index dial is fixed on box back, and bolt device utilizes the groove of plug housing and rocker arm bracket to be contained on the rocker arm bracket, and its distance apart from the spindle axis line can be regulated.The pin of bolt device can move so that the conicle of its front end can both be inserted in the index dial exactly along the main-shaft axis direction.Be distributed in the main shaft front and back position locking device can with principal shaft locking with unclamp, the conelet degree taper hole of front-end of spindle can connect with the taper shank of the different part clamps of clamping, the box bottom parallel with spindle hole is connected with institute use lathe for this mechanism.Extract latch, can make main shaft forward next indexing position to, put down latch and accurately finish the location with the handle on the rocking arm.

The advantage of this indexing device for machine tools is: simple in structure, easy to operate, low cost of manufacture can be relatively easy to solve the calibration problem of general part.

Description of drawings

Fig. 1 is the front view of the utility model indexing device for machine tools;

Fig. 2 is a figure left view of the present utility model;

Fig. 3 is the cutaway view at A-A place;

Fig. 4 is the profile at B-B place;

Fig. 5 is the profile at C-C place;

Fig. 6 is the enlarged drawing at I place among Fig. 3.

Among the figure: 1, casing, 2, main shaft, 3, index dial, 4, rocker arm bracket, 5, handle, 6, round nut, 7, plug housing, 8, spring, 9, the latch handle, 10, resilient key, 11, latch, 12, nut, 13, locking pin, 14, clamping screw, 15, lid, 16, left lock dog, 17, right lock dog.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

With reference to accompanying drawing 3, main shaft (2) is contained in the hole on casing (1) top, and it cooperates is H7/g6.Index dial (3) is contained on coaxial cylinder of casing (1) rear end and spindle hole and the vertical plane, the arc groove that passes respectively on the index dial (3) with two bolts of loading onto packing ring is fixed, two arc grooves on the index dial (3) are coaxial and symmetrical with its axial line, the fixed bit of index dial (3) is equipped with certain adjustable range, to satisfy the needs of regulating first Working position of part to be processed. rocker arm bracket (4) is contained on the cylinder and the shaft shoulder thereof of main shaft (2) rear end; Fixing with key and round nut (6); The shaft shoulder of the end face that rocker arm bracket (4) contacts with the main shaft shaft shoulder and main shaft the place ahead and spindle hole end contact is realized the axial location of main shaft; It is H8/f7 that the size of its formation cooperates with the length of the upper spindle mounting hole of casing (1); Handle (5) is installed in an end of rocker arm bracket (4); The groove of flat and rocker arm bracket (4) other end of plug housing (7) outside cylinder is matched in clearance; The position of receptacle pin (7) can change in groove; Make latch (11) can be inserted into arbitrary group of hole of index dial (3); Can it is reliably fixing with nut (12); The positive and negative of index dial (3) has respectively the locating hole of the different five equilibriums of many groups centered by its axial line; Index dial (3) but positive and negative install and use, to satisfy the needs of many group reciprocal fractions. The one side of the index dial in the accompanying drawing has 5 groups of holes, is respectively 44 holes, 42 holes, 40 holes, 38 holes, 36 holes; Another side also has 5 groups of holes, be respectively 34 holes, 32 holes, 30 holes, 28 holes, 26 holes, such index dial just can be finished from the task of quantity 222 and 26,28,30,32,34,36,38,40,42,44 five equilibriums, the basic needs that solve general part calibration, as run into the part of processing in enormous quantities, convenient for calibration, can make a special index dial.The conicle of latch (11) front end cooperates with locating hole on the index dial (3), contact area is greater than 80%, it is H7/f6 that the big column of latch (11) cooperates with the endoporus of plug housing (7), shock mount (8) between the pillar circle of latch (11) rear end and plug housing (7) endoporus, resilient key (10) passes the radial hole of latch (11) pillar circle rear end and the groove on the plug housing (7), be contained in the corresponding aperture of latch handle (9), groove on the cylindrical of resilient key (10) and the plug housing (7) is a matched in clearance, the endoporus of latch handle (9) and plug housing (7) rear end cylindrical are matched in clearance:when changing next locating hole, pulling latch handle (9) makes the conicle of latch (11) leave locating hole on the index dial (3), after resilient key (10) is along the groove on the plug housing (7) to its outer face, half-twist, rely on the power of spring to make resilient key (10) be parked in this end face, at this moment, index dial (3) is left on the conicle top of latch (11), rotating rocking arm with handle (5) makes latch (11) to next position, 90 ° of resilient key rotates back to, rely on the power of spring that the conicle of latch (11) front end is inserted in the locating hole on the index dial (3), as shown in Figure 4, left side lock dog (16), right lock dog (17) all is contained in casing (1) hole vertical with main shaft, cooperate and be H8/d7, the position that they contact with main shaft is the curved surface that fits like a glove with the main shaft external diameter, the endoporus of left side lock dog (16) and the double-screw bolt cylindrical of clamping screw (14) are matched in clearance, and the double-screw bolt of clamping screw (14) is contained in the screw of right lock dog (17) .Utilize locking pin (13) rotation lock bolt (14), its big cylindrical shaft shoulder forces left lock dog (16) and right lock dog (17) relative motion to step up or unclamps main shaft, therefore can not cause damage and step up reliable when clamping the main shaft surface, at the bottom of casing (1) base plate parallel with main shaft and the effect in top (4) hole be that this indexing mechanism is fixed on the lathe of using it, lid (15) is screwed on casing (1) .The mandrel of the different parts of clamping or the taper shank of anchor clamps are contained in the corresponding tapering taper hole of front-end of spindle, utilize the screw of taper shank end with shelves pad, the nut of stud pull bar by main shaft mesopore and rear-end of spindle mandrel or anchor clamps to be fixed on the main shaft.

Claims

1. indexing device for machine tools, it comprises casing, main shaft, index dial, bolt device, locking device, it is characterized in that: main shaft (2) is contained in the corresponding aperture on casing (1) top, index dial (3) is fixed on casing (1) rear end; rocking arm is contained in main shaft (2) rear end, and bolt device utilizes the groove of plug housing (7) and rocker arm bracket (4) to be contained on the rocker arm bracket (4); Handle (5) is fixed on an end of rocker arm bracket (4), and lid (15) is screwed on casing (1).

2. indexing device for machine tools according to claim 1 is characterized in that: the base plate of casing (1) and spindle hole axis parallel.

3. indexing device for machine tools according to claim 1, it is characterized in that: index dial (3) is contained on coaxial cylinder of casing (1) rear end and spindle hole and the vertical plane, two arc grooves on the index dial (3) are coaxial and symmetrical with its axial line, and it is the locating hole of the different five equilibriums at center with its axial line that the positive and negative of index dial (3) has many groups respectively.

4. indexing device for machine tools according to claim 1 is characterized in that: rocker arm bracket (4) is contained on the cylinder and the shaft shoulder thereof of main shaft (2) rear end, and is fixing with key and round nut (6).

5. indexing device for machine tools according to claim 1, it is characterized in that: the groove of flat and rocker arm bracket (4) other end of plug housing (7) outside cylinder is a matched in clearance, make latch (11) can be inserted into arbitrary group of hole of index dial (3), plug housing (7) is fixed with nut (12).