CN215546902U - Fixture for dovetail tenon blade - Google Patents
Fixture for dovetail tenon blade Download PDFInfo
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- CN215546902U CN215546902U CN202121996525.7U CN202121996525U CN215546902U CN 215546902 U CN215546902 U CN 215546902U CN 202121996525 U CN202121996525 U CN 202121996525U CN 215546902 U CN215546902 U CN 215546902U
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- dovetail
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- guide hole
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Abstract
The utility model provides a fixture for a dovetail head blade, which comprises: the fixed seat is provided with a guide hole and a driving channel, the central axis of the guide hole is vertical to the central axis of the driving channel, and the upper port of the guide hole is positioned on the upper end surface of the fixed seat; the positioning piece comprises two positioning slide blocks, the two positioning slide blocks are arranged on the upper end face of the fixed seat in a sliding manner, an upper port of the guide hole is positioned between the two positioning slide blocks, and the end face of each positioning slide block facing to the other positioning slide block is a positioning inclined plane; the supporting piece is movably arranged in the guide hole and is provided with a first matching part; the driving piece is provided with a second matching part, the first matching part is matched with the second matching part, and the driving piece moves in the driving channel to drive the supporting piece to move in the guide hole. The positioning sliding block can slide on the fixed seat, so that the width of the dovetail groove can be adjusted, the fixture can fix dovetail joints with different sizes and shapes, and the variety and the number of the fixture are reduced.
Description
Technical Field
The utility model relates to a fixture for a dovetail head blade.
Background
The blade is an important component of a turbine section in a gas turbine engine, the blade rotating at a high speed is responsible for sucking high-temperature and high-pressure airflow into a combustor so as to maintain the work of the engine, the blade is usually connected with a wheel disc through a tenon, the tenon of the blade root of the blade needs to be fixed through a clamp in the machining process, but the sizes and the shapes of the tenons on the blades of different models are different, so that the types and the number of the clamps are more, and the waste of resources is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fixture for a dovetail joint blade, which is convenient for fixing different blades.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a fixture for a dovetail blade, comprising:
the device comprises a fixed seat, a driving device and a control device, wherein the fixed seat is provided with a guide hole and a driving channel, the central axis of the guide hole is perpendicular to the central axis of the driving channel, and the upper port of the guide hole is positioned on the upper end surface of the fixed seat;
the positioning piece comprises two positioning sliding blocks, the two positioning sliding blocks are arranged on the upper end face of the fixed seat in a sliding mode, an upper end opening of the guide hole is located between the two positioning sliding blocks, and the end face, facing the other positioning sliding block, of each positioning sliding block is a positioning inclined face;
the supporting piece is movably arranged in the guide hole and is provided with a first matching part;
the driving piece is provided with a second matching part, the first matching part is matched with the second matching part, and the driving piece moves in the driving channel to drive the supporting piece to move in the guide hole.
In some embodiments of the present invention, a first dovetail sliding groove is disposed on an upper end surface of the fixing base, first dovetail sliding blocks are respectively disposed at lower ends of the two positioning sliding blocks, and the two first dovetail sliding blocks are respectively slidably disposed in the first dovetail sliding grooves.
In some embodiments of the present invention, the fixture further includes a fixing member, and the fixing member includes two limiting sliders, two positioning sliders are located between the two limiting sliders, and each limiting slider abuts against the corresponding side of the positioning slider.
In some embodiments of the present invention, each of the two opposite side surfaces of each of the two limiting sliding blocks is provided with a positioning rod, two lugs are spaced apart from each other on the fixing base, and the first connecting member passes through the positioning rod and is then screwed onto the lug on the corresponding side.
In some embodiments of the present invention, each of the limiting sliding blocks is provided with a second dovetail sliding block, and each of the second dovetail sliding blocks is slidably disposed in the first dovetail sliding groove.
In some embodiments of the utility model, the first engaging portion is a first engaging inclined surface disposed at a lower end of the supporting member, the second engaging portion is a second engaging inclined surface disposed at an upper end of the driving member, and the first engaging inclined surface and the second engaging inclined surface are slidably engaged.
In some embodiments of the present invention, a second dovetail sliding groove is disposed on the lower end surface of the driving channel, and a third dovetail sliding block is disposed on the lower end of the driving member, and is slidably disposed in the second dovetail sliding groove.
In some embodiments of the present invention, two fixing blocks are spaced in the second dovetail sliding groove, the driving member is located between the two fixing blocks, a second connecting member is connected to each fixing block through a thread, and a free end of each second connecting member abuts against the third dovetail sliding block.
In some embodiments of the utility model, the upper end of the support is provided with a first locating pin for locating the dovetail.
In some embodiments of the present invention, the fixing seat is disposed on a base, and a second positioning pin for cooperating with a milling machine is disposed at a lower end of the base.
The fixture for the dovetail tenon blade has the characteristics and advantages that:
1. a dovetail groove is defined between the upper end surface of the supporting piece and the two positioning inclined surfaces, and the dovetail head of the blade is clamped in the dovetail groove, so that the dovetail head is convenient to fix.
2. The positioning sliding block can slide on the fixed seat, so that the width of the dovetail groove can be adjusted, the fixture can fix dovetail joints with different sizes and shapes, and the variety and the number of the fixture are reduced.
3. Insert the centre bore of forked tail tenon through the first locating pin that makes the support piece top to the realization is to the location of forked tail tenon, avoids the forked tail tenon to rock at two location sliders, improves the positioning accuracy to the forked tail tenon, guarantees the stability of blade on the anchor clamps.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a clamp according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a fixture according to an embodiment of the present invention in a state clamping a dovetail;
FIG. 3 is a cross-sectional view of a fixture according to other embodiments of the present invention in a state clamping a dovetail;
FIG. 4 is a top view of a fixture according to an embodiment of the utility model.
The reference numbers illustrate:
1. a fixed seat; 11. a guide hole; 12. a drive channel; 121. a second dovetail chute; 13. a first dovetail chute; 14. a lug; 15. a fixed block; 16. a second connecting member; 17. a dovetail groove;
2. a positioning member; 21. positioning the sliding block; 211. positioning the inclined plane; 2111. positioning protrusions; 212. a first dovetail slide block;
3. a support member; 31. a first mating ramp; 32. a first positioning pin;
4. a drive member; 41. a second mating ramp;
5. a fixing member; 51. a limiting slide block; 511. a second dovetail slide block; 52. positioning a rod; 53. a first connecting member;
6. a base; 61. a second positioning pin;
7. a dovetail joint; 71. and (4) a groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the present invention provides a jig for a dovetail blade, including: the device comprises a fixed seat 1, wherein a guide hole 11 and a driving channel 12 are arranged on the fixed seat 1, the central axis of the guide hole 11 is perpendicular to the central axis of the driving channel 12, and the upper port of the guide hole 11 is positioned on the upper end face of the fixed seat 1; the positioning part 2 comprises two positioning slide blocks 21, the two positioning slide blocks 21 are arranged on the upper end face of the fixed seat 1 in a sliding manner, an upper end opening of the guide hole 11 is positioned between the two positioning slide blocks 21, and each positioning slide block 21 is provided with a positioning inclined surface 211 on the end face facing the other positioning slide block 21; a support 3, wherein the support 3 is movably arranged in the guide hole 11, and the support 3 is provided with a first matching part; the driving piece 4 is provided with a second matching part, the first matching part is matched with the second matching part, and the driving piece 4 moves in the driving channel 12 to drive the supporting piece 3 to move in the guide hole 11.
It can be understood that, two positioning sliders 21 may be first disposed on the fixing base 1, and then the dovetail 7 of the blade is disposed between the two positioning sliders 21, so that the two positioning sliders 21 move toward each other, so that the positioning inclined surface 211 of each positioning slider 21 abuts against the dovetail 7, at this time, the driving member 4 in the driving channel 12 may be moved, the driving member 4 pushes the supporting member 3 to move toward the dovetail 7, so that the supporting member 3 abuts against the lower end of the dovetail 7, thereby positioning the dovetail 7 between the supporting member 3 and the two positioning sliders 21, and fixing the dovetail 7, and further fixing the blade, so that the fixture of the present invention may be mounted on a milling machine, and then the blade on the fixture may be processed conveniently.
According to the fixture disclosed by the embodiment of the utility model, the dovetail groove 17 is defined between the upper end surface of the support piece 3 and the two positioning inclined surfaces 211, the dovetail 7 of the blade is clamped in the dovetail groove 17, so that the dovetail 7 is convenient to fix, in addition, the width of the dovetail groove 17 can be adjusted by enabling the positioning slide block 21 to slide on the fixed seat 1, when the inclination of the side surface of the dovetail 7 is changed, the positioning slide block 21 matched with the dovetail 7 can be replaced to ensure that the positioning inclined surfaces 211 can be matched with the side surface of the dovetail 7, so that the fixture disclosed by the utility model can fix the dovetails 7 with different sizes and shapes, and the types and the number of the fixtures are reduced.
In some embodiments, a groove 71 is formed on the opposite side of the dovetail 7, and a positioning protrusion 2111 is further formed on the positioning slope 211, wherein the positioning protrusion 2111 extends into the groove 71 to improve the positioning of the dovetail 7.
In some embodiments of the present invention, a first dovetail sliding groove 13 is disposed on the upper end surface of the fixing base 1, first dovetail sliding blocks 212 are respectively disposed at the lower ends of the two positioning sliding blocks 21, and the two first dovetail sliding blocks 212 are respectively slidably disposed in the first dovetail sliding groove 13.
It can be understood that, slide in the first forked tail spout 13 of fixing base 1 through the first forked tail slider 212 that makes location slider 21 to can lead to the removal of location slider 21, guarantee that location slider 21 can end on dovetail 7, can also avoid location slider 21 and fixing base 1 to separate in addition, guarantee the stability of location slider 21 on fixing base 1.
In some embodiments of the present invention, the fixture further includes a fixing member 5, the fixing member 5 includes two limiting sliders 51, two of the positioning sliders 21 are located between the two limiting sliders 51, and each of the limiting sliders 51 abuts against the corresponding side of the positioning slider 21. It can be understood that, after the two positioning sliding blocks 21 respectively abut against the opposite side surfaces of the dovetail 7, the two positioning sliding blocks 21 are positioned by the two limiting sliding blocks 51, so as to ensure the stability of the positioning sliding blocks 21 on the fixed seat 1.
In some embodiments of the present invention, each of the limit sliders 51 is provided with a positioning rod 52 on opposite sides thereof, two lugs 14 are spaced apart from each other on the fixing base 1, and a first connecting member 53 is threaded onto the lug 14 on the corresponding side after passing through the positioning rod 52. It can be understood that, after the limit slide block 51 is stopped against the corresponding side positioning slide block 21, the first connecting piece 53 is rotated to position the positioning rod 52 on the fixing seat 1, so as to position the limit slide block 51.
It should be noted that, by disposing the lugs 14 on both sides of the positioning slider 21, the movement of the positioning slider 21 is prevented from being hindered.
In some embodiments, the lower end surface of the positioning rod 52 can be slidably engaged with the upper end surface of the fixing base 1, so as to improve the stability of the positioning rod 52.
In some embodiments of the present invention, each of the limiting sliders 51 is provided with a second dovetail slider 511, and each of the second dovetail sliders 511 is slidably disposed in the first dovetail slide groove 13.
It can be understood that, slide in first forked tail spout 13 through the second forked tail slider 511 that makes limit slider 51 to can lead to limit slider 51's removal, guarantee that limit slider 51 can end on the location slider 21 of corresponding side, slide in first forked tail spout 13 through second forked tail slider 511 in addition, can also avoid limit slider 51 and fixing base 1 to separate, guarantee the stability of limit slider 51 on fixing base 1.
In some embodiments of the present invention, the first engaging portion is a first engaging inclined surface 31 disposed at a lower end of the supporting member 3, the second engaging portion is a second engaging inclined surface 41 disposed at an upper end of the driving member 4, and the first engaging inclined surface 31 and the second engaging inclined surface 41 are slidably engaged.
It will be appreciated that by engaging the first engaging inclined surface 31 of the supporting member 3 with the second engaging inclined surface 41 of the driving member 4, the supporting member 3 can be pushed to move along the central axis of the guiding hole 11 in the guiding hole 11 when the driving member 4 moves along the central axis of the driving channel 12, so that the supporting member 3 is stopped against the dovetail 7, and the supporting member 3 can be moved more reliably.
In some embodiments of the present invention, a second dovetail sliding groove 121 is provided on the lower end surface of the driving channel 12, and a third dovetail slider is provided on the lower end of the driving member 4, and is slidably disposed in the second dovetail sliding groove 121.
It can be understood that, by sliding the third dovetail block of the driving member 4 in the second dovetail groove 121 of the driving channel 12, the third dovetail block is prevented from being separated from the second dovetail groove 121, so that the moving direction of the driving member 4 can be limited, the guiding of the moving direction of the driving member 4 is realized, and the matching precision of the driving member 4 and the supporting member 3 is ensured.
In some embodiments of the present invention, two fixing blocks 15 are spaced inside the second dovetail sliding groove 121, the driving member 4 is located between the two fixing blocks 15, a second connecting member 16 is screwed on each fixing block 15, and a free end of each second connecting member 16 abuts against the third dovetail slide block.
It can be understood that, by moving the driving member 4 between the two fixing blocks 15, after the driving member 4 pushes the supporting member 3 to the desired position, the second connecting members 16 on the two fixing blocks 15 are rotated to make the free ends of the two second connecting members 16 respectively stop against the opposite side surfaces of the driving member 4, so as to position the driving member 4, thereby ensuring the stability of the supporting member 3 at the desired position.
It should be noted that the desired position of the support 3 is understood to mean that the support 3 rests against the bottom of the dovetail 7, and that the opposite sides of the dovetail 7 are each supported on a respective side positioning slide 21.
In some embodiments, the first connector 53 and the second connector 16 may both be bolts.
In some embodiments, after the third dovetail slide is disposed in the second dovetail slide groove 121, the two fixing blocks 15 may be welded in the second dovetail slide groove 121, thereby facilitating the installation and fixation of the fixing blocks 15.
In some embodiments of the utility model, the upper end of the support 3 is provided with a first positioning pin 32 for positioning the dovetail 7. It can be understood that, insert the centre bore of dovetail 7 through the first locating pin 32 that makes support piece 3 top to the realization is to dovetail 7's location, avoids dovetail 7 to rock at two location sliders 21, improves the positioning accuracy to dovetail 7, guarantees the stability of blade on the anchor clamps.
In some embodiments of the present invention, the fixing base 1 is disposed on a base 6, and a second positioning pin 61 for cooperating with a milling machine is disposed at a lower end of the base 6.
It can be understood that the fixture of the present invention is conveniently positioned and installed on a milling machine by fixing the fixing base 1 on the base 6, positioning and installing the base 6 on the milling machine, and inserting the second positioning pin 61 on the base 6 into the corresponding pin hole on the milling machine, so that the milling machine can conveniently process the blade on the fixture.
In some embodiments, the base 6 may be bolted to a base of a milling machine.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A dovetail blade clamp, comprising:
the device comprises a fixed seat, a driving device and a control device, wherein the fixed seat is provided with a guide hole and a driving channel, the central axis of the guide hole is perpendicular to the central axis of the driving channel, and the upper port of the guide hole is positioned on the upper end surface of the fixed seat;
the positioning piece comprises two positioning sliding blocks, the two positioning sliding blocks are arranged on the upper end face of the fixed seat in a sliding mode, an upper end opening of the guide hole is located between the two positioning sliding blocks, and the end face, facing the other positioning sliding block, of each positioning sliding block is a positioning inclined face;
the supporting piece is movably arranged in the guide hole and is provided with a first matching part;
the driving piece is provided with a second matching part, the first matching part is matched with the second matching part, and the driving piece moves in the driving channel to drive the supporting piece to move in the guide hole.
2. The fixture for the dovetail head blade according to claim 1, wherein a first dovetail sliding groove is formed in an upper end surface of the fixing base, first dovetail sliding blocks are respectively arranged at lower ends of the two positioning sliding blocks, and the two first dovetail sliding blocks are respectively arranged in the first dovetail sliding grooves in a sliding manner.
3. A dovetail blade fixture as claimed in claim 2, further comprising a fixture, said fixture including two stop blocks, two of said stop blocks being located between said two stop blocks, each of said stop blocks resting on a respective side of said stop block.
4. A dovetail blade fixture as claimed in claim 3, wherein each of the limiting sliders has a locating bar on opposite sides thereof, two lugs are spaced apart from each other on the fixing base, and a first connecting member is threaded onto the lugs on the respective sides after passing through the locating bars.
5. A fixture for dovetail blades according to claim 3, wherein each of said limiting sliders is provided with a second dovetail slider, and each of said second dovetail sliders is slidably disposed in said first dovetail groove.
6. The dovetail blade clamp of claim 1, wherein said first engaging portion is a first engaging ramp disposed at a lower end of said support member, said second engaging portion is a second engaging ramp disposed at an upper end of said drive member, and said first engaging ramp and said second engaging ramp are slidably engaged.
7. A fixture for a dovetail head blade according to claim 6, wherein a second dovetail sliding groove is provided on the lower end surface of the driving channel, and a third dovetail slider is provided on the lower end of the driving member, and is slidably disposed in the second dovetail sliding groove.
8. The fixture for a dovetail blade according to claim 7, wherein two fixing blocks are disposed at an interval in the second dovetail sliding groove, the driving member is disposed between the two fixing blocks, a second connecting member is screwed to each fixing block, and a free end of each second connecting member abuts against the third dovetail slider.
9. A dovetail blade clamp as claimed in claim 1, wherein the upper end of the support member is provided with a first locating pin for locating the dovetail.
10. A fixture for a dovetail blade according to claim 1, wherein said fixture seat is provided on a base, and a second locating pin for cooperation with a milling machine is provided at a lower end of said base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996525.7U CN215546902U (en) | 2021-08-23 | 2021-08-23 | Fixture for dovetail tenon blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996525.7U CN215546902U (en) | 2021-08-23 | 2021-08-23 | Fixture for dovetail tenon blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215546902U true CN215546902U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121996525.7U Active CN215546902U (en) | 2021-08-23 | 2021-08-23 | Fixture for dovetail tenon blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215546902U (en) |
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2021
- 2021-08-23 CN CN202121996525.7U patent/CN215546902U/en active Active
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