CN213053721U - Blade and blade root clamping tool for milling machine - Google Patents
Blade and blade root clamping tool for milling machine Download PDFInfo
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- CN213053721U CN213053721U CN202020823943.5U CN202020823943U CN213053721U CN 213053721 U CN213053721 U CN 213053721U CN 202020823943 U CN202020823943 U CN 202020823943U CN 213053721 U CN213053721 U CN 213053721U
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Abstract
The utility model discloses a blade and blade root clamping tool for a milling machine, which comprises a platform body, wherein a blade root clamping cavity and a blade root passing cavity are arranged in the platform body, the peripheral side wall of the blade root clamping cavity is respectively provided with an installation positioning groove, a slope stop block is installed in a first installation positioning groove, a slope pressing block is installed in a second installation positioning groove, a tooth-shaped surface positioning block is installed in a third installation positioning groove, and a tooth-shaped surface pressing block is installed in a fourth installation positioning groove; the utility model discloses a frock carries out the centre gripping location in the face of the blade root according to the profile of tooth inclined plane of blade root and profile of tooth, and positioning accuracy is high, and simple structure is firm, can realize processing the purpose in blade root bottom surface on vertical milling machine. Through using the utility model discloses a processing of blade root bottom surface shallow slot and boss of movable vane blade is accomplished to the frock, can reach drawing dimensional tolerance requirement completely.
Description
Technical Field
The utility model belongs to the axial compressor field relates to the blade processing, concretely relates to blade root centre gripping frock for milling machine.
Background
The blades are important parts of the axial flow compressor, are arranged on the main shaft to form a rotor, and rotate to do work when the rotor operates. The blade root is dovetail shape, the big surface of the two sides of the blade root is symmetrical tooth surface, the small surface of the two sides is inclined surface, the tooth surface and the inclined surface form a certain included angle, the bottom surface of the blade root is plane, the bottom surface is provided with a convex table and a groove. In general, a blade with free forging is manufactured by processing a blade root and a bottom surface of the blade root, and then positioning and processing a blade profile by a blade root tooth profile. When the bottom surface structure of the blade root is machined, a numerical control horizontal machining center is adopted to position the outer contour of the freely forged square stock for machining. When die forging blanking is carried out, a horizontal machining center is generally selected to machine the bottom surface of the blade root. Adopt horizontal machining center to process the blade root bottom surface, need upwards place the blade root in the blade root bottom surface of will processing, fix a position the blade simultaneously, just need the high blade root centre gripping frock of positioning accuracy, and the clamping frock among the prior art is difficult to satisfy the demand.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a blade root centre gripping frock for milling machine, the positioning accuracy who solves the centre gripping frock among the prior art can not satisfy the technical problem that the positioning accuracy required when blade root bottom surface adds man-hour.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a blade and blade root clamping tool for a milling machine comprises a platform body, wherein a clamping column is arranged at one transverse end of the platform body, a positioning center hole coaxial with the clamping column is formed in the other transverse end of the platform body, a vertically through square step through hole is formed in the platform body, the through hole of the first step along the vertical direction is a blade root clamping cavity, the through hole of the second step is a blade root passing cavity, and the area of the cross section, perpendicular to the vertical direction, of the blade root clamping cavity is larger than that of the cross section, perpendicular to the vertical direction, of the blade root passing cavity;
a through first installation positioning groove is transversely formed in the longitudinal side wall, close to the clamping column, of the blade root clamping cavity, a through second installation positioning groove is transversely formed in the longitudinal side wall, close to the positioning center hole, of the blade root clamping cavity, and a third installation positioning groove and a fourth installation positioning groove are respectively formed in two transverse side walls of the blade root clamping cavity;
a bevel stop block is arranged in the first mounting positioning groove, a bevel pressing block is arranged in the second mounting positioning groove, a tooth-shaped positioning block is arranged in the third mounting positioning groove, and a tooth-shaped pressing block is arranged in the fourth mounting positioning groove;
the inner end of the inclined plane stop block is provided with a first inclined plane matched with one inclined plane of the blade root, the inner end of the inclined plane press block is provided with a second inclined plane matched with the other inclined plane of the blade root, the inner end face of the tooth-shaped face positioning block is provided with a first tooth-shaped face matched with one tooth-shaped face of the blade root, and the inner end face of the tooth-shaped face press block is provided with a second tooth-shaped face matched with the other tooth-shaped face of the blade root.
The utility model discloses still have following technical characteristic:
the tooth-shaped surface positioning block comprises a positioning part and a clamping part which are integrally arranged, the positioning part is arranged in a third installation positioning groove, the clamping part extends into the blade root clamping cavity, and a first tooth-shaped surface arranged on the inner end surface of the clamping part is in contact clamping with one tooth-shaped surface of the blade root.
The transverse width of the positioning part is smaller than that of the clamping part, and a tool withdrawal groove is processed at the intersection position of the positioning part and the clamping part.
The positioning part is arranged in the third installation positioning groove through a pair of screws.
The tooth-shaped surface pressing block comprises a pressing part and an adjusting part which are vertically arranged, the pressing part is placed in a fourth installation positioning groove, a second tooth-shaped surface arranged on the inner end surface of the pressing part is in contact pressing with the other tooth-shaped surface of the blade root, the adjusting part is installed on the transverse side wall of the blade root clamping cavity through a fixing screw rod, an adjusting screw which is abutted to the transverse side wall of the blade root clamping cavity is further arranged on the adjusting part, and the adjusting screw can adjust a pressing gap between the second tooth-shaped surface and the other tooth-shaped surface of the blade root.
The inclined plane dog pass through the screw installation in first installation constant head tank, the inclined plane briquetting on be provided with the bar through-hole, the screw passes the bar through-hole and installs the inclined plane briquetting in second installation constant head tank.
A limiting platform is arranged on one side, close to the positioning central hole, of the platform body, the limiting platform is flush with the bottom surface of the blade root clamping cavity, and the positioning central hole is located at the other transverse end of the platform body below the limiting platform; the limiting platform is provided with a limiting block which is abutted to the outer end part of the inclined plane pressing block for limiting.
Compared with the prior art, the utility model, following technological effect has:
(I) the utility model discloses a frock carries out the centre gripping location in the face of the blade root according to the profile of tooth inclined plane of blade root and profile of tooth, and positioning accuracy is high, and simple structure is firm, can realize processing the purpose in blade root bottom surface on vertical milling machine. Through using the utility model discloses a processing of blade root bottom surface shallow slot and boss of movable vane blade is accomplished to the frock, can reach drawing dimensional tolerance requirement completely.
(II) the utility model discloses an inclined plane dog, inclined plane briquetting, profile of tooth face locating piece and profile of tooth face briquetting form clearance fit, the location of each part of being convenient for. The first tooth-shaped surface and the second tooth-shaped surface are basically matched with the tooth-shaped surface of the blade root, so that the positioning precision of the workpiece blade is improved, and the time for clamping and aligning the workpiece blade is shortened.
Drawings
Fig. 1 is a schematic front view of a blade and root clamping tool for a milling machine.
Fig. 2 is a schematic top view of a blade and root clamping tool for a milling machine.
Fig. 3 is a left side view structural schematic diagram of the blade and root clamping tool for the milling machine.
Fig. 4 is a schematic view of clamping the blade root by the tooth-shaped surface positioning block and the tooth-shaped surface pressing block.
Fig. 5 is a front view structure diagram of the platform body.
Fig. 6 is a schematic top view of the platform body.
Fig. 7 is a left side view structural diagram of the platform body.
Fig. 8 is a right-view structural diagram of the platform body.
Fig. 9 is a schematic structural view of a tooth-shaped surface positioning block.
FIG. 10 is a schematic structural view of the first toothed surface.
FIG. 11 is a schematic structural view of a second toothed surface.
The meaning of the individual reference symbols in the figures is: 1-platform body, 2-clamping column, 3-positioning central hole, 4-blade root clamping cavity, 5-blade root through cavity, 6-first installation positioning groove, 7-second installation positioning groove, 8-third installation positioning groove, 9-fourth installation positioning groove, 10-inclined plane stop block, 11-inclined plane press block, 12-tooth-shaped plane positioning block, 13-tooth-shaped plane press block, 14-first inclined plane, 15-second inclined plane, 16-first tooth-shaped plane, 17-second tooth-shaped plane, 18-adjusting screw, 19-strip-shaped through hole, 20-limiting platform, 21-limiting block, 22-blade root, 23-blade, 24-fixing screw rod, 25-tool withdrawal groove and 26-limiting fastening bolt;
1201-positioning part, 1202-clamping part;
1301-a compression part, 1302-an adjustment part.
The following examples are provided to explain the present invention in further detail.
Detailed Description
It is to be noted that all the components and materials of the present invention are known in the art, and the components and materials are not specifically described.
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example 1:
the embodiment provides a blade and blade root clamping tool for a milling machine, which comprises a platform body 1, wherein a clamping column 2 is arranged at one transverse end of the platform body 1, and a positioning central hole 3 coaxial with the clamping column 2 is arranged at the other transverse end of the platform body 1, and is characterized in that a vertically through square step through hole is formed in the platform body 1, the through hole of a first step in the vertical direction is a blade root clamping cavity 4, the through hole of a second step is a blade root passing cavity 5, and the area of the section, perpendicular to the vertical direction, of the blade root clamping cavity 4 is larger than the area of the section, perpendicular to the vertical direction, of the blade root passing cavity 5;
a through first installation positioning groove 6 is transversely formed in the longitudinal side wall, close to the clamping column 2, of the blade root clamping cavity 4, a through second installation positioning groove 7 is transversely formed in the longitudinal side wall, close to the positioning center hole 3, of the blade root clamping cavity 4, and a third installation positioning groove 8 and a fourth installation positioning groove 9 are respectively formed in the two transverse side walls of the blade root clamping cavity 4;
a bevel stop block 10 is arranged in the first mounting positioning groove 6, a bevel pressing block 11 is arranged in the second mounting positioning groove 7, a tooth-shaped positioning block 12 is arranged in the third mounting positioning groove 8, and a tooth-shaped pressing block 13 is arranged in the fourth mounting positioning groove 9;
the inner end of the inclined plane stop block 10 is provided with a first inclined plane 14 matched with one inclined plane of the blade root 22, the inner end of the inclined plane press block 11 is provided with a second inclined plane 15 matched with the other inclined plane of the blade root 22, the inner end face of the tooth-shaped plane positioning block 12 is provided with a first tooth-shaped face 16 matched with one tooth-shaped face of the blade root 22, and the inner end face of the tooth-shaped plane press block 13 is provided with a second tooth-shaped face 17 matched with the other tooth-shaped face of the blade root 22.
As a preferable solution of this embodiment, the tooth-shaped surface positioning block 12 includes a positioning portion 1201 and a clamping portion 1202 integrally formed, the positioning portion 1201 is installed in the third installation positioning slot 8, the clamping portion 1202 extends into the blade root clamping cavity 4, and the first tooth-shaped surface 16 provided on the inner end surface of the clamping portion 1202 is clamped in contact with one tooth-shaped surface of the blade root 22.
Further preferably, the lateral width of the positioning portion 1201 is smaller than that of the clamping portion 1202, and a relief groove 25 is machined at a position where the positioning portion 1201 and the clamping portion 1202 intersect. The relief groove 25 can ensure more accurate fitting with the inner end surface of the third mounting positioning groove 8 at the position where the positioning portion 1201 and the grip portion 1202 intersect, thereby achieving accurate positioning.
Further preferably, the positioning portion 1201 is mounted in the third mounting positioning groove 8 by a pair of screws.
As a preferable scheme of the present embodiment, the tooth-shaped surface pressing block 13 includes a pressing portion 1301 and an adjusting portion 1302, which are vertically arranged, the pressing portion 1301 is placed in the fourth installation positioning groove 9, a second tooth-shaped surface 17 arranged on an inner end surface of the pressing portion 1301 is in contact with and pressed against another tooth-shaped surface of the blade root 22, the adjusting portion 1302 is installed on a lateral side wall of the blade root clamping cavity 4 through a fixing screw 24, an adjusting screw 18 which is pressed against the lateral side wall of the blade root clamping cavity 4 is further arranged on the adjusting portion 1302, and the adjusting screw 18 can adjust a pressing gap between the second tooth-shaped surface 17 and the another tooth-shaped surface of the blade root 22.
As a preferable scheme of this embodiment, the inclined plane stop block 10 is installed in the first installation positioning groove 6 by a screw, a strip-shaped through hole 19 is provided on the inclined plane pressing block 11, and the screw penetrates through the strip-shaped through hole 19 to install the inclined plane pressing block 11 in the second installation positioning groove 7.
As a preferable scheme of this embodiment, a limiting platform 20 is provided on one side of the platform body 1 close to the positioning central hole 3, the limiting platform 20 is flush with the bottom surface of the blade root clamping cavity 4, and the positioning central hole 3 is located at the other transverse end of the platform body 1 below the limiting platform 20; the limiting platform 20 is provided with a limiting block 21, and the limiting block 21 is abutted to the outer end part of the inclined plane pressing block 11 for limiting. The limiting block 21 is mounted on a transversely mounted limiting fastening bolt 26, and the limiting fastening bolt 26 can be rotated to drive the limiting block 21 to move on the limiting platform 20.
The utility model discloses a third installation constant head tank 8 is the same with fourth installation constant head tank 9's structure, and the screw hole of seting up around it is also the same for the mounted position of profile of tooth face locating piece 12 and profile of tooth face briquetting 13 can exchange according to actual demand.
The utility model discloses a frock is when using, passes chamber 5 from the blade root with the blade root 22 of work piece blade 23 and passes and get into blade root centre gripping chamber 4, aligns a profile of tooth face of blade root 22 and the first profile of tooth face 16 of profile of tooth face locating piece 12 and laminates the location, aligns another profile of tooth face of blade root 22 and the second profile of tooth face 17 of profile of tooth face briquetting 13 and laminates the location for the bottom surface of blade root 22 upwards exposes.
And then, one inclined surface of the blade root 22 is contacted with the first inclined surface 14 of the inclined surface stop block 10, the nut on the fixing screw rod 24 is screwed, so that the toothed surface pressing block 13 is pressed, and the pressing gap between the second toothed surface 17 and the other toothed surface of the blade root 22 is adjusted through the adjusting screw 18.
Then, the other inclined plane of the blade root 22 is in close contact with the second inclined plane 15 of the inclined plane pressing block 11 by adjusting the transverse position of the inclined plane pressing block 11, then the inclined plane pressing block 11 is preliminarily fixed by screwing a screw which penetrates through the strip-shaped through hole 19, and the limiting block 21 on the limiting platform 20 is moved by screwing the limiting fastening bolt 26, so that the limiting block 21 abuts against the outer end part of the inclined plane pressing block 11 for limiting, and clamping is completed. Then the clamping column 2 is arranged in a jaw of a milling machine to be fixed, the positioning center hole 3 is arranged on a tailstock of the milling machine, and the bottom end of the blade root 22 is processed.
Claims (7)
1. A blade and blade root clamping tool for a milling machine comprises a platform body (1), wherein a clamping column (2) is arranged at one transverse end of the platform body (1), and a positioning center hole (3) coaxial with the clamping column (2) is formed in the other transverse end of the platform body (1), and is characterized in that a vertically through square step through hole is formed in the platform body (1), the through hole of a first step from top to bottom along the vertical direction of the square step through hole is a blade root clamping cavity (4), the through hole of a second step is a blade root passing cavity (5), and the area of the vertical section of the blade root clamping cavity (4) is larger than the area of the vertical section of the blade root passing cavity (5);
a through first installation positioning groove (6) is transversely formed in the longitudinal side wall, close to the clamping column (2), of the blade root clamping cavity (4), a through second installation positioning groove (7) is transversely formed in the longitudinal side wall, close to the positioning center hole (3), of the blade root clamping cavity (4), and a third installation positioning groove (8) and a fourth installation positioning groove (9) are respectively formed in the two transverse side walls of the blade root clamping cavity (4);
an inclined plane stop block (10) is installed in the first installation positioning groove (6), an inclined plane pressing block (11) is installed in the second installation positioning groove (7), a tooth-shaped surface positioning block (12) is installed in the third installation positioning groove (8), and a tooth-shaped surface pressing block (13) is installed in the fourth installation positioning groove (9);
the inner end of the inclined plane stop block (10) is provided with a first inclined plane (14) matched with one inclined plane of the blade root (22), the inner end of the inclined plane press block (11) is provided with a second inclined plane (15) matched with the other inclined plane of the blade root (22), the inner end face of the tooth-shaped plane positioning block (12) is provided with a first tooth-shaped plane (16) matched with one tooth-shaped plane of the blade root (22), and the inner end face of the tooth-shaped plane press block (13) is provided with a second tooth-shaped plane (17) matched with the other tooth-shaped plane of the blade root (22).
2. The blade and blade root clamping tool for the milling machine as claimed in claim 1, wherein the toothed surface positioning block (12) comprises a positioning part (1201) and a clamping part (1202) which are integrally arranged, the positioning part (1201) is installed in the third installation positioning groove (8), the clamping part (1202) extends into the blade root clamping cavity (4), and the first toothed surface (16) arranged on the inner end surface of the clamping part (1202) is in contact clamping with one toothed surface of the blade root (22).
3. The clamping tool for the blade root of the blade for the milling machine as claimed in claim 2, characterized in that the transverse width of the positioning part (1201) is smaller than that of the clamping part (1202), and a relief groove (25) is processed at the position where the positioning part (1201) and the clamping part (1202) intersect.
4. A clamping fixture for the blade root of a blade for a milling machine according to claim 2, characterized in that the positioning part (1201) is mounted in the third mounting positioning slot (8) by means of a pair of screws.
5. The blade and blade root clamping tool for the milling machine as claimed in claim 1, wherein the toothed surface pressing block (13) comprises a pressing part (1301) and an adjusting part (1302) which are vertically arranged, the pressing part (1301) is placed in the fourth installation positioning groove (9), a second toothed surface (17) arranged on the inner end surface of the pressing part (1301) is in contact pressing with the other toothed surface of the blade root (22), the adjusting part (1302) is installed on the transverse side wall of the blade root clamping cavity (4) through a fixing screw rod (24), the adjusting part (1302) is further provided with an adjusting screw (18) which is pressed against the transverse side wall of the blade root clamping cavity (4), and the adjusting screw (18) can adjust the pressing gap between the second toothed surface (17) and the other toothed surface of the blade root (22).
6. The blade and blade root clamping tool for the milling machine as claimed in claim 1, wherein the bevel stop block (10) is mounted in the first mounting positioning groove (6) through a screw, the bevel press block (11) is provided with a strip-shaped through hole (19), and the screw penetrates through the strip-shaped through hole (19) to mount the bevel press block (11) in the second mounting positioning groove (7).
7. The blade and blade root clamping tool for the milling machine according to claim 1, wherein a limiting platform (20) is arranged on one side, close to the positioning center hole (3), of the platform body (1), the limiting platform (20) is flush with the bottom surface of the blade root clamping cavity (4), and the positioning center hole (3) is located at the other transverse end of the platform body (1) below the limiting platform (20); the limiting platform (20) is provided with a limiting block (21), and the limiting block (21) is abutted to the outer end part of the inclined plane pressing block (11) for limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020823943.5U CN213053721U (en) | 2020-05-15 | 2020-05-15 | Blade and blade root clamping tool for milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020823943.5U CN213053721U (en) | 2020-05-15 | 2020-05-15 | Blade and blade root clamping tool for milling machine |
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| Publication Number | Publication Date |
|---|---|
| CN213053721U true CN213053721U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020823943.5U Active CN213053721U (en) | 2020-05-15 | 2020-05-15 | Blade and blade root clamping tool for milling machine |
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| CN (1) | CN213053721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365852A (en) * | 2022-10-24 | 2022-11-22 | 成都和鸿科技股份有限公司 | Stator blade machining method and clamping tool |
-
2020
- 2020-05-15 CN CN202020823943.5U patent/CN213053721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365852A (en) * | 2022-10-24 | 2022-11-22 | 成都和鸿科技股份有限公司 | Stator blade machining method and clamping tool |
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