CN104339264A - Abrasive wheel dresser - Google Patents

Abstract

The invention provides an abrasive wheel dresser which comprises a base and a motor, wherein two rollers are mounted in parallel on the shaft of the motor; a worm gear case is mounted on the base; a worm is mounted inside the worm gear case; the worm is meshed with a worm gear; the worm is fixed through an angle contact spherical bearing I, an end cover I and an end cover II; the worm gear is mounted on an upper screw rod; scales are formed in the worm; a hand wheel is arranged on the worm; a handle is arranged on the hand wheel; a lower screw rod is arranged inside the base; a lower screw nut is arranged on the lower screw rod; a middle sliding plate is arranged on the base; the middle sliding plate is fixedly connected with the lower screw nut through a bolt; a piece of inclined iron I is arranged between the base and the middle sliding plate; two upper sliding plates are arranged on the middle sliding plate; a piece of inclined iron II is arranged between the middle sliding plate and the upper sliding plate; two right-handed nuts and two left-handed nuts are respectively mounted inside holes of the two upper sliding plates; one end of the upper screw rod is crewed into the right-handed nuts and the left-handed nuts and is fixed through bolts. By adoption of the abrasive wheel dresser, the gap between the screw rods and the screw nuts can be effectively eliminated, the transmission precision is ensured, and the stability is ensured.

Description

Truer

Technical field

The invention belongs to mechanical field, relate in particular to a kind of truer.

Background technology

Some machine components there is groove, need through grinding, the two sides of emery wheel used need to revise, and two rollers of corrector originally drive two lead screw transmission by two worm-gearses respectively, are operated separately by two handwheels, two rollers can not be realized move simultaneously, easily cause emery wheel two sides to revise inconsistent, asymmetric with workpiece centre, every rhizoid thick stick only has a nut, be difficult to eliminate leading screw and nut gap, easily cause round-off error.

Summary of the invention

The invention provides a kind of truer, there is the shortcoming of round-off error in the truer solved in background technology.

Technical scheme of the present invention is achieved in that truer, comprise base, motor, on the axle of motor, alignment is equipped with two rollers, base is equipped with worm gear case, worm screw is equipped with in worm gear case, worm and wheel coincide, worm screw is by angular contact ball bearing I, end cap I and end cap II are fixed, worm gear is satisfied with on upper screw rod, upper leading screw is by two angular contact ball bearings II and end cap III, end cap V is fixed, worm screw is provided with calibration loop and handwheel, handwheel is equipped with handle, lower leading screw is provided with in base, lower leading screw is fixed by two angular contact ball bearings III and end cap IV, lower leading screw is provided with lower nut, base is provided with middle slide carriage, middle slide carriage is fixedly connected with lower nut by bolt, wedge I is provided with between base and middle slide carriage, fixed by adjustment screw I and nut I, middle slide carriage is provided with two upper slide carriages, wedge II is provided with between middle slide carriage and upper slide carriage, fixed by adjustment screw II and nut II, two right-handed nuts and two left-handed nuts are equipped with respectively in two upper slide carriage holes, upper leading screw one end screws in right-handed nut and left-handed nut, with bolt, two right-handed nuts and two left-handed nuts are gone up slide carriage with two to be respectively connected and fixed,

Upper leading screw afterbody is equipped with leading screw bracket at tail part, and upper leading screw bracket at tail part is fixed on middle slide carriage by radial ball bearing;

Worm gear case is fixedly satisfied with on middle slide carriage;

Two upper slide carriages are respectively equipped with motor and install bent plate, motor is installed bent plate and is connected with motor.

The invention has the beneficial effects as follows: invention increases a set of lower feed screw nut and sled mechanism, two rollers and emery wheel centering position can be finely tuned, upper feed screw nut adopts double nut mechanism, effectively can eliminate leading screw and nut gap, guarantee transmission accuracy, thread pitch reduces, feeding unit reduces, add correction precision, after improving, the precision of wheel grinding part brings up to 0.004mm by original 0.008mm, and stability is also guaranteed.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the A-A generalized section of Fig. 1 of the present invention;

Fig. 3 is the B-B generalized section of Fig. 1 of the present invention;

The C-C generalized section of Fig. 4 Fig. 1 of the present invention;

Fig. 5 top view of the present invention.

Part illustrates: 1, end cap I, 2, angular contact ball bearing I, 3, worm screw, 4, end cap II, 5, calibration loop, 6, handwheel, 7, handle, 8, adjustment screw I, 9, nut I, 10, wedge I, 11, end cap III, 12, angular contact ball bearing II, 13, upper leading screw, 14, worm gear, 15, worm gear case, 16, middle slide carriage, 17, end cap IV, 18, angular contact ball bearing III, 19, base, 20, lower leading screw, 21, lower nut, 22, end cap V, 23, right-handed nut, 24, upper slide carriage, 25, emery wheel, 26, left-handed nut, 27, radial ball bearing, 28, upper leading screw bracket at tail part, 29, nut II, 30, adjustment screw II, 31, wedge II, 32, bent plate installed by motor, 33, motor, 34, roller.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described: truer, comprise base 19, it is inner that lower leading screw 20 is contained in base 19, with two angular contact ball bearings III 18 and end cap IV 17 fixed position, the contact surface of grinding end cap IV 17 and angular contact ball bearing III 18, adjustment bearing axial clearance, ensure that lower leading screw 20 axial movement value is less than 0.01mm, rotate lower leading screw 20, flexibly, fluent phenomenon, lower nut 21 is arranged on lower leading screw 20, again middle slide carriage 16 is arranged on base 19, middle slide carriage 16 and lower nut 21 are joined with bolts, wedge I 10 is installed between middle slide carriage 16 and base 19, mutual grinding, with adjustment screw I 8 adjusting play, ensure quality of fit, lock with nut I 9 again.

Two upper slide carriages 24 are arranged on middle slide carriage 16, between upper slide carriage 24 and middle slide carriage 16, wedge II 31 is installed, mutual grinding, with adjustment screw II 30 adjusting play, ensure quality of fit, lock with nut II 29 again, by two right-handed nuts 23, two left-handed nuts 26 are respectively charged in two upper slide carriage 24 holes, wouldn't fix with bolt, worm gear 14 is put into worm gear case 15, upper leading screw 13 is loaded in worm gear case 15, worm gear 14 is contained on upper leading screw 13, upper leading screw 13 two angular contact ball bearings II 12 and end cap III 11, end cap V 22 fixed position, grinding end cap III 11, the contact surface of end cap V 22 and angular contact ball bearing II 12, adjustment bearing axial clearance, in guarantee, leading screw 13 axial movement value is less than 0.005mm, leading screw 13 in rotation, flexibly, fluent phenomenon, worm screw 3 is loaded in worm gear case 15, and coincide with worm gear 14, with two angular contact ball bearings I 2 and end cap I 1, the fixing worm screw 3 of end cap II 4, grinding end cap I 1, the contact surface of end cap II 4 and angular contact ball bearing I 2, adjustment bearing axial clearance, ensure that worm screw 3 axial movement value is less than 0.05mm, rotary worm 3, flexibly, fluent phenomenon, calibration loop 5 and handwheel 6 are arranged on worm screw 3, again handle 7 is arranged on handwheel 6, upper leading screw 13 is screwed into right-handed nut 23 and left-handed nut 26, worm gear case 15 is fixed on middle slide carriage 16 simultaneously, upper leading screw afterbody installs radial ball bearing 27, upper leading screw bracket at tail part 28 is arranged on upper leading screw 13 and middle slide carriage 16 also fixing, rotate right-handed nut 23 and left-handed nut 26, two upper slide carriages 24 are adjusted to the position of needs, with bolt, two right-handed nuts 23 and two left-handed nuts 26 are gone up slide carriage 24 with two respectively to be again connected and fixed, right-handed nut 23 to be adjusted while fixing, the gap of left-handed nut 26 and upper leading screw 13, guarantee degree of tightness is moderate, upper leading screw 13 rotates flexibly, fluent phenomenon, two motors being installed bent plate 32 is arranged on two upper slide carriages 24 respectively, distinguish mounted motor 33 again, then two rollers 34 are arranged on the axle of motor 33 respectively, ensure that two rollers 34 align, whole truer assembling is complete.

Truer is arranged on Grinder bench, roller 34 centre-height and emery wheel 25 center contour, two rollers 34 are positioned at emery wheel 25 both sides and symmetrical.

Hold handle 7 to rotate, drive handwheel 6 and calibration loop 5 to rotate, also drive worm screw 3 to rotate, worm screw 3 drives worm gear 14 to rotate simultaneously, worm gear 14 drives upper leading screw 13 to rotate, upper leading screw 13 rotation is ordered about right-handed nut 23 and is moved with left-handed nut 26, thus drives two upper slide carriages 24 to move, and upper slide carriage 24 drives two rollers 34 to move in opposite directions, while turning handle 7, note the scale observing calibration loop 5, control the amount of feeding at any time, just can revise emery wheel.

Invention increases a set of lower feed screw nut and sled mechanism, two rollers and emery wheel centering position can be finely tuned, upper feed screw nut adopts double nut mechanism, effectively can eliminate leading screw and nut gap, guarantee transmission accuracy, thread pitch reduces, feeding unit reduces, add correction precision, after improving, the precision of wheel grinding part brings up to 0.004mm by original 0.008mm, and stability is also guaranteed.

Claims (4)

1. truer, comprise base (19), motor (33), on the axle of motor (33), alignment is equipped with two rollers (34), base (19) is equipped with middle slide carriage (16), middle slide carriage (16) is equipped with worm gear case (15), worm screw (3) is equipped with in worm gear case (15), worm screw (3) coincide with worm gear (14), worm screw (3) is by angular contact ball bearing I (2), end cap I (1) and end cap II (4) are fixed, worm gear (14) is satisfied with on upper screw rod (13), upper leading screw (13) is by two angular contact ball bearings II (12) and end cap III (11), end cap V (22) is fixed, worm screw (3) is provided with calibration loop (5) and handwheel (6), handwheel (6) is equipped with handle (7), it is characterized in that being provided with lower leading screw (20) in base (19), lower leading screw (20) is fixed by two angular contact ball bearings III (18) and end cap IV (17), lower leading screw (20) is provided with lower nut (21), base (19) is provided with middle slide carriage (16), middle slide carriage (16) is fixedly connected with lower nut (21) by bolt, wedge I (10) is provided with between base (19) and middle slide carriage (16), fixed by adjustment screw I (8) and nut I (9), middle slide carriage (16) is provided with two upper slide carriages (24), wedge II (31) is provided with between middle slide carriage (16) and upper slide carriage (24), fixed by adjustment screw II (30) and nut II (29), two right-handed nuts (23) and two left-handed nuts (26) are equipped with respectively in two upper slide carriage (24) holes, upper leading screw (13) one end screws in right-handed nut (23) and left-handed nut (26), with bolt, two right-handed nuts (23) and two left-handed nuts (26) are gone up slide carriage (24) with two to be respectively connected and fixed.

2. truer according to claim 1, is characterized in that leading screw (13) afterbody is equipped with leading screw bracket at tail part (28), and upper leading screw bracket at tail part (28) is fixed on middle slide carriage (16) by radial ball bearing (27).

3. truer according to claim 1 and 2, is characterized in that worm gear case (15) is fixedly satisfied with on middle slide carriage (16).

4. truer according to claim 1, it is characterized in that two upper slide carriages (24) are respectively equipped with motor installs bent plate (32), motor is installed bent plate (32) and is connected with motor (33).