CN203875766U - Grinding wheel arc angle R-correcting fixture - Google Patents
Grinding wheel arc angle R-correcting fixture Download PDFInfo
- Publication number
- CN203875766U CN203875766U CN201420328457.0U CN201420328457U CN203875766U CN 203875766 U CN203875766 U CN 203875766U CN 201420328457 U CN201420328457 U CN 201420328457U CN 203875766 U CN203875766 U CN 203875766U
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- grinding wheel
- arc angle
- fixture
- slide block
- index dial
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Abstract
The utility model relates to a grinding wheel arc angle R-correcting fixture. The grinding wheel arc angle R-correcting fixture comprises a base (1), a fixture body (2), an indexing mechanism (3), a linear guide rail (4) and an R-adjustment mechanism (5). The fixture body (2) is fixedly mounted above the base (1); the indexing mechanism (3) and the linear guide rail mechanism (4) are arranged on both sides of the fixture body (2) and connected with each other; the linear guide rail mechanism (4) is connected with the R-adjustment mechanism (5); the indexing mechanism (3) comprises an indexing plate (27), a central shaft (26), a rocker handle (6), an indexing column (7) and a cushion block (8); the linear guide rail mechanism (4) comprises a main slider (11), an auxiliary slider (12) and steel balls (18); the R-adjustment mechanism (5) comprises a rotating arm (19), an adjusting disc (22), a threaded column (23) and a tool bit (24). The grinding wheel arc angle R-correcting fixture has the advantages of being simple in structure, accurate in matching, convenient to operate and long in service life.
Description
Technical field
The utility model relates to grinding wheel arc angle trimming device, particularly grinding wheel arc angle and repaiies R fixture.
Background technology
Dresser is that grinder wheel is carried out to the aid that size, shape, geometric angle etc. are repaired.In order to meet the needs of production, trimming wheel often runs in actual production.Be mainly according to institute's processing work geometry and surface accuracy requirement etc., after emery wheel is repaired, again workpiece carried out to reconditioning, reach and guarantee mill cut part quality requirement, so the finishing of emery wheel plays an important role to the precision of grinding.Traditional crushing is to carry out hand finish by grinding wheel dressing pen, or adopts moulding trimmer (as roller) to repair.But the emery wheel after these two kinds of method finishings all can produce circular shape error, the form accuracy of workpiece after impact processing.The reason that affects crushing precision has two aspects: the one, and the precision of trimmer itself; The 2nd, misoperation.
Generally, the arc at emery wheel edge is fixing, the corresponding central angle of arc is fixed value, after abrasion of grinding wheel, arc changes, now need to repair by trimming device, traditional dresser is provided with index dial, on index dial, be provided with graduation mark and pointer, movement by graduation mark with respect to pointer, determine the anglec of rotation of trimming device, when operation, operating personnel rotate the handle being connected with index dial on one side, the anglec of rotation of observing index dial on one side, operating personnel are difficult to adjust to angle just, technical merit to operating personnel is had relatively high expectations, and inevitably there is error, cause arc finishing accuracy lower.
The two ends of the arc angle of emery wheel are generally tangent with straight line, the corresponding central angle of arc section of emery wheel need to be realized control by index dial, the straightway at circular arc two ends needs to use straight guide rail, traditional guide rail is oat tail groove structure, and its technological requirement is higher, and manufacture difficulty is large, be difficult for guaranteeing its quality of fit, and oat tail groove structure is face contact, steering error is larger, and the dressing accuracy of emery wheel is low.
When finishing sand grains arc angle, need according to actual needs, adjust arc radius; this radius is that point of a knife is to the distance of the central shaft of pivoted arm rotation; can, by regulating the position of point of a knife, increase or shorten point of a knife to the distance of central shaft, to realize the object of adjusting arc radius.Traditional tune R mechanism, knife bar is polished rod, and between connecting plate for being slidably matched, with holding screw, pass connecting plate again, be pressed on the sidewall of knife bar, when regulating radius, knife bar is done without frictional slip along connecting plate, knife bar is easily beated when locking, and its precision is difficult to assurance, and the position that need to repeatedly adjust knife bar guarantees that point of a knife is abrasive wheel grinding wheel arc radius to the distance of central shaft.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of grinding wheel arc angle simple in structure, that coordinate accurate, easy to operate and long service life to repair R fixture.
The purpose of this utility model is achieved through the following technical solutions: grinding wheel arc angle is repaiied R fixture, it comprises base, body, indexing mechanism, guiding rail mechanism He Tiao R mechanism, body is fixedly mounted on base top, indexing mechanism and guiding rail mechanism are arranged at respectively the both sides of body, adjust R mechanism to be arranged at the outside of guiding rail mechanism;
Described indexing mechanism comprises index dial, central shaft, rocker lever, dividing column, cushion block, pointer and graduation mark, index dial cooperation is arranged on body, the middle part of central shaft is fixed on the center of index dial, rocker lever is arranged on one end of central shaft, the other end of central shaft is through body, a plurality of dividing columns are arranged at index dial near a side of rocker lever, cushion block is fixedly mounted on base, and cushion block be positioned at dividing column under, on the side of index dial, be also provided with graduation mark, the top of body is fixed with pointer;
Described guiding rail mechanism comprises master slider, secondary slide block and steel ball, master slider is connected with central shaft driven, the upper and lower of master slider one side is respectively arranged with the groove of level, the upper and lower of secondary slide block one side is respectively arranged with the protruding rail of level, master slider and secondary slide block inside offer respectively two steel bead grooves, and groove coordinates with protruding rail, and at least two steel balls are installed in each steel bead groove, the both sides of secondary slide block are provided with cover plate, and cover plate is sealed in steel ball in steel bead groove;
Described tune R mechanism comprises pivoted arm, upper junction plate, lower connecting plate, adjusting disk, threaded column and cutter head, one end of pivoted arm is fixed on the side of secondary slide block, the other end of pivoted arm is provided with upper junction plate and the lower connecting plate of consistency from top to bottom, threaded column is successively vertically through upper junction plate and lower connecting plate, between upper junction plate and lower connecting plate, be provided with adjusting disk, regulate disk and threaded column to be connected, cutter head is fixedly mounted on the top of threaded column.
Described dividing column has three, and is positioned on same circumference, and the angle of adjacent two dividing columns respectively and between the circle center line connecting of index dial is 90 °.
Described master slider top is also symmetrically arranged with plectrum, and the crown center position of described secondary slide block is also provided with limited block, and two plectrums pass master slider, and lays respectively at the both sides of limited block.
Distance between two described plectrums equals the width of limited block.
Between described master slider and secondary slide block, be also filled with sealing cotton.
On described upper junction plate and the side of lower connecting plate, be also provided with lock-screw, the end of lock-screw is pressed on the side of threaded column.
The utlity model has following advantage:
1, master slider and secondary slide block coordinate by groove and protruding rail, and offer at master slider and secondary slide block inner side the V-type groove that steel ball is installed, and in V-type groove, steel ball are installed, and it is simple in structure.
2, between steel ball smooth surface, and V-type groove, frictional force is little; By threaded column, coordinate with connecting plate, rotation regulates disk, regulate disk to coordinate with threaded column, realize threaded column and move up and down, threaded column is on corner angle, to be threaded the four-prism of structure, and remainder is planar structure, holding screw is directly pressed in the plane of threaded column, when locking holding screw, threaded column is subject to regulating disk restriction, can not move up and down, and coordinates precisely.
3, on index dial, dividing column is set, by trigonometric function, calculate arc length, determine again cushion block height, in index dial rotation process, do not need to observe the scale index on index dial always, when dividing column is pressed on cushion block, master slider and the relative slippage automatically of secondary slide block, realize cutter head and do the tangential motion of camber line, simple, convenient.
4, between steel ball smooth surface, and V-type groove, frictional force is little, coordinates precisely; Sealing is set between master slider and secondary slide block cotton, prevents that extraneous dust from entering in steel ball mounting groove, guarantee that steel ball is intact, extend its service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is the right TV structure schematic diagram of Fig. 1;
Fig. 4 is the structural representation of guiding rail mechanism;
Fig. 5 is the plan structure schematic diagram of Fig. 4;
Fig. 6 is the structural representation of master slider;
Fig. 7 is the structural representation of secondary slide block;
The structural representation of Tu8Wei Tiao R mechanism;
Fig. 9 is the left TV structure schematic diagram of Fig. 8;
In figure: 1-base, 2-body, 3-indexing mechanism, 4-guiding rail mechanism, 5-Tiao R mechanism, 6-rocker lever, 7-dividing column, 8-cushion block, 9-pointer, 10-graduation mark, 11-master slider, the secondary slide block of 12-, 13-groove, 14-steel bead groove, 15-protruding rail, 16-plectrum, 17-limited block, 18-steel ball, 19-pivoted arm, 20-upper junction plate, 21-lower connecting plate, 22-regulates disk, 23-threaded column, 24-cutter head, 25-lock-screw, 26-central shaft, 27-index dial, 28-cover plate, 29-seals cotton.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, grinding wheel arc angle is repaiied R fixture, it comprises base 1, body 2, indexing mechanism 3, guiding rail mechanism 4 He Tiao R mechanisms 5, body 2 is fixedly mounted on base 1 top, indexing mechanism 3 and guiding rail mechanism 4 are arranged at respectively the both sides of body 2, adjust R mechanism 5 to be arranged at the outside of guiding rail mechanism 4;
As shown in figures 1 and 3, described indexing mechanism 3 comprises index dial 27, central shaft 26, rocker lever 6, dividing column 7, cushion block 8, pointer 9 and graduation mark 10, index dial 27 cooperations are arranged on body 2, the middle part of central shaft 26 is fixed on the center of index dial 27, rocker lever 6 is arranged on one end of central shaft 26, the other end of central shaft 26 is through body 2, a plurality of dividing columns 7 are arranged at index dial 27 near a side of rocker lever 6, cushion block 8 is fixedly mounted on base 1, and cushion block 8 be positioned at dividing column 7 under, on the side of index dial 27, be also provided with graduation mark 10, the top of body 2 is fixed with pointer 9,
As Fig. 4, Fig. 5, shown in Fig. 6 and Fig. 7, described guiding rail mechanism 4 comprises master slider 11, secondary slide block 12 and steel ball 18, master slider 11 is connected with central shaft 26 transmissions, the upper and lower of master slider 11 1 sides is respectively arranged with the groove 13 of level, the upper and lower of secondary slide block 12 1 sides is respectively arranged with the protruding rail 15 of level, master slider 11 and secondary slide block 12 inside offer respectively two steel bead grooves 14, groove 13 coordinates with protruding rail 15, in each steel bead groove 14, at least two steel balls 18 are installed, the both sides of secondary slide block 12 are provided with cover plate 28, cover plate 28 is sealed in steel ball 18 in steel bead groove 14,
As shown in Figure 8 and Figure 9, described tune R mechanism 5 comprises pivoted arm 19, upper junction plate 20, lower connecting plate 21, regulates disk 22, threaded column 23 and cutter head 24, one end of pivoted arm 19 is fixed on the side of secondary slide block 12, the other end of pivoted arm 19 is provided with upper junction plate 20 and the lower connecting plate 21 of consistency from top to bottom, threaded column 23 is successively vertically through upper junction plate 20 and lower connecting plate 21, between upper junction plate 20 and lower connecting plate 21, be provided with and regulate disk 22, regulate disk 22 and threaded column 23 to be connected, cutter head 24 is fixedly mounted on the top of threaded column 23; As shown in Figure 9, on described upper junction plate 20 and the side of lower connecting plate 21, be also provided with lock-screw 25, the end of lock-screw 25 is pressed on the side of threaded column 23.
As shown in Figure 3, described dividing column 7 has three, and is positioned on same circumference, and the angle of adjacent two dividing columns 7 respectively and between the circle center line connecting of index dial 27 is 90 °.
As shown in Figure 5, described master slider 11 tops are also symmetrically arranged with plectrum 16, and the crown center position of described secondary slide block 12 is also provided with 17, two plectrums of limited block 16 through master slider 11, and lay respectively at the both sides of limited block 17; Distance between two described plectrums 16 equals the width of limited block 17.
As shown in Figure 1, between described master slider 11 and secondary slide block 12, be also filled with sealing cotton 29.
It needs to be noted, the difference in height between cutter head 24 and central shaft 26 is grinding wheel arc angle radius.
Specific works process of the present utility model is:
First, grinding wheel arc angle is repaiied on the workbench that R fixture is placed on emery wheel to be trimmed, center of circle horizontal alignment by central shaft 26 with grinding wheel arc angle, base 1 is fixing, known grinding wheel arc angle radius, rotation regulates disk 22, makes the height distance between cutter head 24 and central shaft 26 equal grinding wheel arc angle radius, by lock-screw 25 lockings;
Secondly, calculate the height of cushion block 8: according to the corresponding arc length of grinding wheel arc angle, determine that grinding wheel arc angle repaiies the anglec of rotation α of R fixture, the anglec of rotation of index dial 27 also should be α, the axis of supposing central shaft 26 is H to the upper surface of base 1, the axis of dividing column 7 is assumed to be R to the axial line distance of central shaft 26, the radius of dividing column 7 is r, the height of cushion block 8 is h, from geometrical relationship, H=h+r+R*sin α, wherein, H, r and R are fixed value, so h=H-r-R*sin α, can find out, h changes along with the variation of α, that is to say as long as the anglec of rotation of index dial 27 is definite value, the height of cushion block 5 is definite value, the anglec of rotation of index dial 27 is converted to the height of cushion block 8.To sum up, by the corresponding central angle of grinding wheel arc angle, determined the height of cushion block 8, and cushion block 8 is arranged on base 1;
Again, plectrum 16 is exited to limited block 17, limited block 17 and plectrum 16 are staggered, rotating rocker handle 6, the point of a knife of cutter head 24 rotates around the axis of central shaft 26, and after dividing column 7 is pressed on cushion block 8, cutter head 24 stops the rotation, master slider 11 and the relative slippage of secondary slide block 12, the tangential direction that now running orbit of cutter head 24 is circular arc.
Claims (6)
1. grinding wheel arc angle is repaiied R fixture, it is characterized in that: it comprises base (1), body (2), indexing mechanism (3), guiding rail mechanism (4) He Tiao R mechanism (5), body (2) is fixedly mounted on base (1) top, indexing mechanism (3) and guiding rail mechanism (4) are arranged at respectively the both sides of body (2), adjust R mechanism (5) to be arranged at the outside of guiding rail mechanism (4);
Described indexing mechanism (3) comprises index dial (27), central shaft (26), rocker lever (6), dividing column (7), cushion block (8), pointer (9) and graduation mark (10), index dial (27) cooperation is arranged on body (2), the middle part of central shaft (26) is fixed on the center of index dial (27), rocker lever (6) is arranged on one end of central shaft (26), the other end of central shaft (26) is through body (2), a plurality of dividing columns (7) are arranged at index dial (27) near a side of rocker lever (6), cushion block (8) is fixedly mounted on base (1), and cushion block (8) be positioned at dividing column (7) under, on the side of index dial (27), be also provided with graduation mark (10), the top of body (2) is fixed with pointer (9),
Described guiding rail mechanism (4) comprises master slider (11), secondary slide block (12) and steel ball (18), master slider (11) is connected with central shaft (26) transmission, the upper and lower of master slider (11) one sides is respectively arranged with the groove (13) of level, the upper and lower of secondary slide block (12) one sides is respectively arranged with the protruding rail (15) of level, master slider (11) and secondary slide block (12) inside offer respectively two steel bead grooves (14), groove (13) coordinates with protruding rail (15), at least two steel balls (18) are installed in each steel bead groove (14), the both sides of secondary slide block (12) are provided with cover plate (28), cover plate (28) is sealed in steel ball (18) in steel bead groove (14),
Described tune R mechanism (5) comprises pivoted arm (19), upper junction plate (20), lower connecting plate (21), regulate disk (22), threaded column (23) and cutter head (24), one end of pivoted arm (19) is fixed on the side of secondary slide block (12), the other end of pivoted arm (19) is provided with upper junction plate (20) and the lower connecting plate (21) of consistency from top to bottom, threaded column (23) is successively vertically through upper junction plate (20) and lower connecting plate (21), between upper junction plate (20) and lower connecting plate (21), be provided with and regulate disk (22), regulate disk (22) and threaded column (23) to be connected, cutter head (24) is fixedly mounted on the top of threaded column (23).
2. grinding wheel arc angle according to claim 1 is repaiied R fixture, it is characterized in that: described dividing column (7) has three, and is positioned on same circumference, and the angle of adjacent two dividing columns (7) respectively and between the circle center line connecting of index dial (27) is 90 °.
3. grinding wheel arc angle according to claim 1 is repaiied R fixture, it is characterized in that: described master slider (11) top is also symmetrically arranged with plectrum (16), the crown center position of described secondary slide block (12) is also provided with limited block (17), two plectrums (16) pass master slider (11), and lay respectively at the both sides of limited block (17).
4. grinding wheel arc angle according to claim 3 is repaiied R fixture, it is characterized in that: the distance between described two plectrums (16) equals the width of limited block (17).
5. according to the grinding wheel arc angle described in claim 1 or 3, repair R fixture, it is characterized in that: between described master slider (11) and secondary slide block (12), be also filled with sealing cotton (29).
6. grinding wheel arc angle according to claim 1 is repaiied R fixture, it is characterized in that: on the side of described upper junction plate (20) and lower connecting plate (21), be also provided with lock-screw (25), the end of lock-screw (25) is pressed on the side of threaded column (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328457.0U CN203875766U (en) | 2014-06-19 | 2014-06-19 | Grinding wheel arc angle R-correcting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328457.0U CN203875766U (en) | 2014-06-19 | 2014-06-19 | Grinding wheel arc angle R-correcting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203875766U true CN203875766U (en) | 2014-10-15 |
Family
ID=51676309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420328457.0U Withdrawn - After Issue CN203875766U (en) | 2014-06-19 | 2014-06-19 | Grinding wheel arc angle R-correcting fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203875766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002241A (en) * | 2014-06-19 | 2014-08-27 | 成都宏明双新科技股份有限公司 | Grinding wheel arc angle R finishing clamp |
-
2014
- 2014-06-19 CN CN201420328457.0U patent/CN203875766U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002241A (en) * | 2014-06-19 | 2014-08-27 | 成都宏明双新科技股份有限公司 | Grinding wheel arc angle R finishing clamp |
| CN104002241B (en) * | 2014-06-19 | 2016-02-03 | 成都宏明双新科技股份有限公司 | Grinding wheel arc angle repaiies R fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |