CN202388331U - Grinding head moving mechanism of vertical type double-end-surface grinding machine - Google Patents
Grinding head moving mechanism of vertical type double-end-surface grinding machine Download PDFInfo
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- CN202388331U CN202388331U CN2011204373633U CN201120437363U CN202388331U CN 202388331 U CN202388331 U CN 202388331U CN 2011204373633 U CN2011204373633 U CN 2011204373633U CN 201120437363 U CN201120437363 U CN 201120437363U CN 202388331 U CN202388331 U CN 202388331U
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- bistrique
- inner sleeve
- tube
- grinding head
- ball
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Abstract
The utility model provides a grinding head moving mechanism of a vertical type double-end-surface grinding machine, comprising a grinding head cylinder, a gear, an inner sleeve, a roll ball frame and a roll ball, an outer sleeve, a fixed seat and a flat key, wherein a thread arranged on the outer wall of the upper section of the grinding head cylinder is matched with a thread arranged on the inner wall of the inner sleeve; two paths of key grooves are symmetrically arranged at the lower section of the grinding head cylinder; a slide channel composed of the fixed seat and the flat key limits the grinding head cylinder only to do vertical lifting; a plurality of counter holes and circular holes are uniformly formed at the top of the grinding head cylinder to fix a sand wheel rotary assembly; a gear is fixedly arranged at the upper part of the outer wall of the inner sleeve and a circular-arc-shaped annular groove is arranged on the outer wall of the periphery of the lower part of the inner sleeve; the roll ball frame and the roll ball are clamped on the circular-arc-shaped annular groove which is matched with the inner wall of the outer sleeve so that the inner sleeve and the outer sleeve can relatively rotate, similar to a deep groove ball bearing; and the outer sleeve is fixed on the fixed seat. When the gear rotates, the thread of the inner sleeve drives the grinding head cylinder to lift up and down. The grinding head moving mechanism of the vertical type double-end-face grinding machine has the advantages of stability and accuracy in transmission, simple structure and low manufacturing cost.
Description
Technical field
The present invention relates to the metal cutting manufacture field, main spindle holds Double End vertical grinders such as roller form grinding, stage clip form grinding, is used for two end faces of abrasive machine part, and the present invention specifically refers to the bistrique travel mechanism of Double End vertical grinder.
Background technology
Bearing (like roller, race ring), automobile (like valve spring, clutch spring), oil nozzle oil pump stage clip etc. are most widely used a kind of machine components in plant equipment and the automobile; These machine components require not only that both ends of the surface are parallel, both ends of the surface are vertical with axial line, and production quantity is big.Prior art normally is inserted into a plurality of parts to be processed in a plurality of holes of array on the mill circumference; Let emery wheel rotate from both direction feeding up and down; When last lower grinding wheel spacing reaches the setting process value; The grinding of part Double End is accomplished, and the emery wheel rotary part is fixed in the bistrique tube, and the translational speed of bistrique tube, moving direction and mobile accuracy have determined the grinding efficiency and the grinding accuracy of Double End vertical grinder.
The emery wheel majority of prior art is that electric machine main shaft passes through worm gear, worm speed-down, is transformed into straight line to circular motion through gear, tooth bar again and moves, and can not rotate with guide post control bistrique tube, can only move by straight line.Owing to draw the bistrique tube to move with a pinion, tooth bar in a thruster of bistrique tube, locomotivity produces moment of flexure to bistrique tube power transmission shaft, so the bistrique tube can produce one one " creeping " phenomenon when moving; If use two pinions, tooth bar transmission simultaneously in bistrique tube both sides, be difficult to then guarantee that both are synchronous, also can produce " creeping " phenomenon.Gear, tooth bar transmission also have complex structure, defective that manufacturing cost is high, demand urgently improving.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, a kind of bistrique travel mechanism that moves steady, accurate Double End vertical grinder be provided,
The present invention is achieved through following technical proposals:
The bistrique travel mechanism of Double End vertical grinder comprises bistrique tube, gear, inner sleeve, ball rack and ball, outer sleeve, holder, flat key;
The spiral that bistrique tube epimere is provided with and the spiral of inner sleeve inwall are adaptive, when inner sleeve rotates, can drive the bistrique tube and move up and down; Bistrique tube helical design becomes the special shape that pitch is big, depth of threat is little, uses and reduces corner stress; Pitch is between the 12-36 millimeter, and depth of threat is between the 2-4 millimeter; Bistrique tube hypomere is provided with keyway, and the slideway restriction bistrique tube that holder and flat key are formed can only be made vertical lift, and can not rotate; Bistrique tube top be uniformly distributed along the circumference several counter sinks and circular hole are used for fixing the emery wheel rotary part;
The inner sleeve inwall is provided with spiral; Fixing gear on the circumference of outer wall top, be provided with the circular arc annular groove on the lower circumference, cooperated circular arc annular groove clamping on outer sleeve inwall ball rack and ball; Inner sleeve and outer sleeve can be rotated relatively, possess and surmounted the function of deep groove ball bearing; And the circular arc annular groove of inner sleeve and outer sleeve is innovative design of the present invention, and its cross section is made up of the multiple tracks circular arc, and two ends are orthodromes, and the centre is little circular arc; Ball diameter is identical with the orthodrome diameter; The center of circle of two sections circular arcs does not overlap;
Outer sleeve is fixed on the holder, and the circular arc annular groove on its inwall contacts with ball with ball rack.
The invention has the beneficial effects as follows: when the gear driven inner sleeve rotated, under the cooperation of ball rack and ball, the inner sleeve rotation was light, and the screw drives bistrique tube on the inner sleeve inwall goes up and down.With the rotating speed of gear rotation, turn to translational speed and the moving direction of controlling the bistrique tube, the axial line of gear and emery wheel overlaps, can be to bistrique tube generation moment of flexure; Than the one-sided transmission of gear, tooth bar more steadily, more accurate; The present invention is simple in structure, long service life, low cost of manufacture.
Description of drawings
Fig. 1 is the assembling outline drawing of the bistrique travel mechanism of Double End vertical grinder;
Fig. 2 is the front view of the bistrique travel mechanism of Double End vertical grinder;
Fig. 3 is the cutaway view of Fig. 2 along the A-A line;
Fig. 4 is the B enlarged drawing of Fig. 3;
Fig. 5 is the STRUCTURE DECOMPOSITION figure of the bistrique travel mechanism of Double End vertical grinder.
Description of reference numerals:
1 bistrique tube, 1-1 spiral, 1-2 keyway, 2 gears, 3 inner sleeves, 3-1 ball rack and ball, 4 outer sleeves, 5 holders, 5-1 flat key.
The specific embodiment
Come further to set forth the present invention below in conjunction with embodiment and accompanying drawing:
The bistrique travel mechanism of Double End vertical grinder such as Fig. 1-shown in Figure 5.Adaptive spiral is arranged on the outer wall of the inwall of inner sleeve 3 and bistrique tube 1, and the pitch of present embodiment is 26 millimeters, and depth of threat is 2.5 millimeters.When gear 2 is pressed the technological parameter rotation of grinding machine control default; The inner sleeve 3 that is fixed together with gear 2 drives 1 up-down of bistrique tube through spiral 1-1, and inner sleeve 3, ball rack and ball 3-1 and outer sleeve 4 are combined into similar deep groove ball bearing, not only make the rotation of gear 2 light; And let gear 2 in rotary course; Its axial line overlaps with the axial line of bistrique tube 1 all the time, and driving force can not produce moment of flexure to the emery wheel power transmission shaft, make the dynamic balance performance of emery wheel better.
The inwall of holder 5 is provided with flat key 5-1, embeds among the keyway 1-2 of bistrique tube 1, and restriction bistrique tube can only moving linearly and can not rotate.
Be provided with adaptive circular arc annular groove on the relative position of inner sleeve 3 and outer sleeve 4; Its cross section is made up of three road circular arcs, and two ends are orthodromes, and middle one section is little circular arc; The center of circle of size circular arc does not overlap, and the diameter of the steel ball of ball rack and ball 3-1 is identical with the orthodrome diameter of circular arc annular groove.When steel ball rolled in the circular arc annular groove, contact point was four points at large and small arc transition place, and wherein inner sleeve 3 respectively accounts for two points with outer sleeve 4, and their contact angle can change along with the different choice of large and small arc diameter.According to bistrique tube 1 axial force and gear 2 suffered radial load and all rollovers moment, can select optimum contact angle, improve the grinding wheel dynamic balance performance, improve transmission accuracy.
Claims (3)
1. the bistrique travel mechanism of Double End vertical grinder is characterized in that: comprise bistrique tube, gear, inner sleeve, ball rack and ball, outer sleeve, holder, flat key;
The spiral that bistrique tube epimere is provided with and the spiral of inner sleeve inwall are adaptive, when inner sleeve rotates, can drive the bistrique tube and move up and down; Bistrique tube hypomere is provided with keyway, and the slideway restriction bistrique tube that holder and flat key are formed can only be made vertical lift, and can not rotate; Bistrique tube top be uniformly distributed along the circumference several counter sinks and circular hole;
The inner sleeve inwall is provided with spiral, is fixing gear on the circumference of outer wall top, is provided with the circular arc annular groove on the lower circumference, and cooperated circular arc annular groove clamping on outer sleeve inwall ball rack and ball can rotate inner sleeve and outer sleeve relatively;
Outer sleeve is fixed on the holder, and the circular arc annular groove on its inwall contacts with ball with ball rack.
2. the bistrique travel mechanism of Double End vertical grinder as claimed in claim 1 is characterized in that: described bistrique tube helical design becomes the special shape that pitch is big, depth of threat is little, and pitch is between the 12-36 millimeter, and depth of threat is between the 2-4 millimeter.
3. the bistrique travel mechanism of Double End vertical grinder as claimed in claim 1 is characterized in that: the circular arc annular groove of described inner sleeve and outer sleeve, and its cross section is made up of the multiple tracks circular arc, and two ends are orthodromes, and the centre is little circular arc; Ball diameter is identical with the orthodrome diameter; The center of circle of two sections circular arcs does not overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204373633U CN202388331U (en) | 2011-11-08 | 2011-11-08 | Grinding head moving mechanism of vertical type double-end-surface grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204373633U CN202388331U (en) | 2011-11-08 | 2011-11-08 | Grinding head moving mechanism of vertical type double-end-surface grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388331U true CN202388331U (en) | 2012-08-22 |
Family
ID=46663283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204373633U Expired - Fee Related CN202388331U (en) | 2011-11-08 | 2011-11-08 | Grinding head moving mechanism of vertical type double-end-surface grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388331U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390026A (en) * | 2011-11-08 | 2012-03-28 | 绍兴市家度弹簧机械有限公司 | Grinding-head moving mechanism of double-end-surface vertical grinding machine |
| CN107570755A (en) * | 2017-09-25 | 2018-01-12 | 吴汝松 | A kind of knocking drilling tool |
-
2011
- 2011-11-08 CN CN2011204373633U patent/CN202388331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390026A (en) * | 2011-11-08 | 2012-03-28 | 绍兴市家度弹簧机械有限公司 | Grinding-head moving mechanism of double-end-surface vertical grinding machine |
| CN107570755A (en) * | 2017-09-25 | 2018-01-12 | 吴汝松 | A kind of knocking drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20171108 |