There is the scraper of complex track
Technical field
The scraper that the Precision Machining that the present invention relates to the faces such as a kind of machine tool guideway, plane uses, is specifically related to the scraper with complex track, belongs to IPC and to classify B23D technical field.
Background technology
The processing in the face such as machine tool guideway, plane adopted artificial scraping mode in the past, and labour intensity is large, and technical requirement is high, and efficiency is low, and quality is unstable.The scraping of rear employing numerical control device, but track is single, can not realize the scraping track like people completely, can not meet the requirement of machinery industry Technology for Scraping.
Summary of the invention
The invention provides a kind of arc trajectory control realization movement locus compound motion by controlling knife bar fixed block rectilinear motion, flexible knife bar, with scraping track during anthropomorphic work scraping, realize point of a knife and stablize the scraper that accurate scraping has complex track, in order to solve the deficiencies in the prior art.
Technical scheme of the present invention is as follows:
Have the scraper of complex track, comprise the cutter body being provided with BT handle of a knife, BT handle of a knife outer cone is rigidly connected cutter body tension by blind rivet on main shaft with lathe rotary main shaft; It is characterized in that:
Cutter body also comprises upper shell, be placed in lower house below upper shell, and upper shell and BT handle of a knife by together with housing bearing assemble, and can relatively rotate;
One eccentric block is fixed on BT handle of a knife, and is pressed on housing bearing lower surface, and eccentric block rotates together with lathe rotary main shaft with BT handle of a knife; Capacity eccentric bearing is contained in eccentric block eccentric orfice and rotates together;
The one knife bar fixed block being provided with kidney slot is coordinated by kidney slot with capacity eccentric bearing, is provided with line slideway outside this knife bar fixed block and between lower house madial wall; Knife bar fixed block is also fixed a flexible knife bar;
Lower house side fixes a track block, and track block is provided with arching trajectory groove; One track frame one end is fixed on flexible knife bar, the other end is fixed in the arching trajectory groove set by track block by the straight pin limit that is equipped with track bearing;
Blade is fixed in blade holder, and blade holder is fixed on the end of flexible knife bar.
Upper shell is fixedly connected with a securing cover plate, securing cover plate has a fixing hole fix with machine tool chief axis upper cover plate steady pin and become to have angle.
Beneficial effect of the present invention is as follows:
Cutter body is connected with machine tool chief axis, main shaft rotates to be power, realize the automatic sharpening scraping bevel, precise translation shaving action is carried out in the face of scraping, precision reaches within 1.5 μm to needing to adopt translation simulation workman to shovel the mode of scraping, precision is high, excellent in efficiency, low to operator's skill set requirements, and stay-in-grade finished product can be obtained.
Accompanying drawing illustrates:
Fig. 1 is the sectional view of scraper of the present invention;
Fig. 2 is the connection diagram of scraper cutter body of the present invention and machine tool chief axis;
Detailed description of the invention:
Below in conjunction with accompanying drawing, elaboration detailed is further done to the present invention.
Have the scraper of complex track, comprise the cutter body being provided with BT handle of a knife (2), BT handle of a knife (2) outer cone is rigidly connected cutter body tension by blind rivet (1) on main shaft with lathe rotary main shaft (25);
Cutter body also comprises upper shell (3), is placed in the lower house (6) of upper shell (3) below, upper shell (3) is fixedly connected with a securing cover plate (4), securing cover plate (4) has a fixing hole fix with machine tool chief axis (25) upper cover plate steady pin (26) and become to have angle.This angle indication is not any angle, refers to the limit range that both sides relation can reach in frame for movement.
Upper shell (3) and BT handle of a knife (2) are assembled together by housing bearing (5), and can relatively rotate.
One eccentric block (15) is fixed on BT handle of a knife (2), and is pressed on housing bearing (5) lower surface, and eccentric block (15) rotates together with lathe rotary main shaft (25) with BT handle of a knife (2); Capacity eccentric bearing (7) is contained in eccentric block (15) eccentric orfice and rotates together;
The one knife bar fixed block (9) being provided with kidney slot is coordinated by kidney slot with capacity eccentric bearing (7), is provided with line slideway (8) between this knife bar fixed block (9) outside and lower house (6) madial wall.In the present embodiment, when capacity eccentric bearing (7) rotates, drive knife bar fixed block (9) linear reciprocating motion on line slideway (8) line slideway; And knife bar fixed block (9) is also fixed a flexible knife bar (10), during knife bar fixed block (9) linear reciprocating motion, flexible knife bar (10) also follows linear reciprocating motion.
Lower house (6) side fixes a track block (16), and track block (16) is provided with arching trajectory groove (27); One track frame (17) one end is fixed on flexible knife bar (10), the other end is limited in the arching trajectory groove (27) set by track block (16) by the straight pin that is equipped with track bearing (18); End ring (20) is also equipped with in track bearing (18) two ends;
Blade (24) is fixed in blade holder (21), and blade holder (21) is fixed on the end of flexible knife bar (10).
Principle of the present invention is as follows:
Lathe rotary main shaft (25) rotates, also rotated by the BT handle of a knife (2) that blind rivet (1) is strained, rotate with the eccentric block (15) that BT handle of a knife (2) is fixing, the capacity eccentric bearing (7) that eccentric block (15) is fitted together is also along with rotation, the knife bar fixed block (9) coordinated with capacity eccentric bearing (7) under the effect of line slideway (8) on line slideway linear reciprocating motion, also start linear reciprocating motion with the flexible knife bar (10) that knife bar fixed block (9) is fixing.
Now, be fixed on the track frame (17) on flexible knife bar (10), the straight pin of its track track bearing (18) is limited to be fixed in the arching trajectory groove (27) set by a track block (16) at lower house (6) side.When flexible knife bar (10) linear reciprocating motion is through the spacing control of arching trajectory groove (27), flexible knife bar (10) is made to realize straight line and camber line complex track moves.And blade (24) is fixed in blade holder (21), blade holder (21) is fixed on the end of flexible knife bar (10), has therefore just driven the scraping point of a knife of blade (24) to realize compound motion track, has realized the track required for scraping.
And upper shell (3) is fixedly connected with a securing cover plate (4), securing cover plate (4) there is a fixing hole fix with machine tool chief axis (25) upper cover plate steady pin (26) and become to have angle; The scraping of different angles intersection can be realized by the securing cover plate (4) changing different fixing hole angle.
The fixed form arrived involved in the present invention is as follows:
Lower house (6) is connected on upper shell (3) by lower house hold-down screw (14).Eccentric block (15) is fixed on BT handle of a knife (2) by eccentric block stretching screw (13).Flexible knife bar (10) is fixed on knife bar fixed block (9) by knife bar hold-down screw (11).Track frame (17) is fixed on flexible knife bar (10) by track frame hold-down screw (12).Blade (24) is fixed on knife rest (21) by blade fastening screw (22).
Above fixed form is also non-limiting; when can suitably change cutter body based on principle; fixed form also can be different, but common fixed form does not change general principle of the present invention in essence to some extent, therefore also because of within invention which is intended to be protected.
The general name of BT handle of a knife (2) general reference BT handle of a knife kind of the present invention, the present invention is not limited to the main shaft model of other several specifications such as SK, CAPTO, BBT, HSK.