CN216264746U - Clamp structure for machining upper cover of steam turbine - Google Patents
Clamp structure for machining upper cover of steam turbine Download PDFInfo
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- CN216264746U CN216264746U CN202123106245.7U CN202123106245U CN216264746U CN 216264746 U CN216264746 U CN 216264746U CN 202123106245 U CN202123106245 U CN 202123106245U CN 216264746 U CN216264746 U CN 216264746U
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- 238000003754 machining Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a fixture structure for processing an upper cover of a steam turbine, which comprises: the vertical plates are fixed on the upper end surface of the base through bolt intervals; the rotary workbench can be rotatably arranged between the vertical plates, the rotary workbench is of a U-shaped structure and comprises a material carrying plate and lug plates symmetrically arranged at two ends of the material carrying plate, and the outer sides of the two lug plates are correspondingly matched with the inner sides of the vertical plates; the auxiliary supporting seat is arranged on the base, is positioned below the material carrying plate and is used for carrying out auxiliary supporting on the lower end of the material carrying plate when the material carrying plate is in a non-horizontal position, so that the stability of the clamp structure is improved, and the stability of the processing precision is ensured.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to a fixture structure for machining an upper cover of a steam turbine.
Background
The upper cover of steam turbine bearing body is an important part on the steam turbine, it has a plurality of holes to distribute on it, be 45 degrees between the hole, 90 degrees angle, because the phase angle graduation between its hole is 45 degrees or 90 degrees, consequently, it is high to adopt multiaxis equipment processing cost, adopt the machining center of three axles class, if there is not special frock cooperation, the processing in angle hole can not be accomplished again, in order to realize the processing in inclined hole, simultaneously, there is upper cover weight ratio heavy, add the characteristics that the pressure is big under the load stack effect man-hour, we have developed dedicated fixture structure specially.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fixture structure for processing an upper cover of a steam turbine, which has the advantages of stable performance, high production efficiency and low labor cost and solves the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a clamp structure is used in processing of steam turbine upper cover, includes:
the base plate (6) is provided with a base,
the vertical plates 9 are fixed on the upper end surface of the base 6 at intervals through bolts 7;
the rotary workbench 8 is rotatably arranged between the vertical plates 9, the rotary workbench 8 is of a U-shaped structure and comprises a material carrying plate 804 and lug plates 803 symmetrically arranged at two ends of the material carrying plate 804, and the outer sides of the two lug plates 803 are correspondingly matched with the inner sides of the vertical plates 9;
and the auxiliary support seat 12 is arranged on the base 6 and is positioned below the material loading plate 804 and used for carrying out auxiliary support on the lower end of the material loading plate 804 when the material loading plate 804 is in a non-horizontal position.
Further, a bearing hole 906 is formed in the vertical plate 9, a copper sleeve 10 is assembled in the bearing hole 906, a first fixing pin hole 902, a second fixing pin hole 903, a third fixing pin hole 904 and a fourth fixing pin hole 905 are formed in the vertical plate 9 around the bearing hole 906, center lines of the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905 are located on the same circumference, the vertical plate 9 is further provided with an arc groove 901, and the arc groove 901 is coaxial with the bearing hole 906 and located on the outer side of the fourth fixing pin hole 905; the central connecting line of the first fixing pin hole 902 and the third fixing pin hole 904 is perpendicular to the base 6, and the central connecting line of the second fixing pin hole 903 and the fourth fixing pin hole 905 is parallel to the base 6.
Furthermore, a rotating shaft 4 is installed on the ear plate 803, the outer end of the rotating shaft 4 can be rotatably installed in the copper sleeve 10, the ear plate 803 is further provided with a first movable pin hole 801 and a second movable pin hole 802, the connecting line of the first movable pin hole 801 and the center of the rotating shaft 4 is parallel to the material loading plate 804, the phase angle between the second movable pin hole 802 and the first movable pin hole 801 is 45 degrees, the first movable pin hole 801 and the second movable pin hole 802 are adapted to the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905, the ear plate 803 is further provided with a fixing bolt 3, the optical axis section of the fixing bolt 3 is matched with the arc groove 901, the thread section of the fixing bolt 3 extends out of the end face of the arc groove 901 in a penetrating mode and is assembled with a fastening nut 1 in a screwing mode.
Furthermore, a positioning pin 2 is movably matched with the first movable pin hole 801, the second movable pin hole 802, the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905.
Further, a guide groove 11 is arranged in the middle of the upper end face of the base 6 in parallel with the vertical plate 9, a first screw 13 is screwed in the auxiliary support base 12, a second screw 14 is screwed in the first screw 13, a positioning section 1201 in sliding fit with the guide groove 11 is arranged at the bottom of the auxiliary support base 12, and the auxiliary support base 12 can move along the guide groove 11.
Further, the rotating shaft 4 is fixedly connected with the ear plate 803 through a screw 5.
The utility model has the beneficial effects that: the utility model provides a clamp structure for processing an upper cover of a steam turbine, which is arranged on a workbench of a vertical processing center when in use, a first movable pin hole is aligned with a fourth fixed pin hole, a positioning pin is inserted, a fastening nut is screwed to fix a rotary workbench in a horizontal position, an upper cover (not shown) of a bearing body of the steam turbine is arranged on a material carrying plate, corresponding holes are processed, the rotary workbench rotates 45 degrees or 90 degrees as required after the corresponding holes are processed, the rotary workbench is locked in an upper mode, the processing of the corresponding holes is realized, the working hours are saved, the processing efficiency is improved, and the processing precision is ensured, wherein when the holes with the phase angle of 45 degrees or 90 degrees are processed, the rotary workbench rotates to the position and moves the position of an auxiliary supporting seat after the rotary workbench is locked, a first screw rod and a second screw rod are screwed out according to the height to directly support the lowest end of the material carrying plate, the adverse effect to locating pin and tight set nut after avoiding product dead weight and cutting force stack improves the stability of anchor clamps structure, guarantees that the machining precision is stable.
Drawings
FIG. 1 is a side view of the inventive structure.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a partial cross-sectional view of the rotary table of the present invention structure rotated 90 degrees to the left.
Fig. 5 is a partial cross-sectional view of the rotary table constructed according to the present invention rotated 45 degrees to the left.
FIG. 6 is a side view of a rotary table constructed in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, a fixture structure for processing an upper cover of a steam turbine includes: the device comprises a base 6, a vertical plate 9, a rotary workbench 8 and an auxiliary supporting seat 12, wherein the vertical plate 9 is fixed on the upper end surface of the base 6 at intervals through bolts 7; the rotary workbench 8 is rotatably arranged between the vertical plates 9, the rotary workbench 8 is of a U-shaped structure and comprises a material carrying plate 804 and lug plates 803 symmetrically arranged at two ends of the material carrying plate 804, and the outer sides of the two lug plates 803 are correspondingly matched with the inner sides of the vertical plates 9; the auxiliary supporting seat 12 is disposed on the base 6 and located below the material loading plate 804 for supporting the lower end of the material loading plate 804 when the material loading plate 804 is in a non-horizontal position.
Preferably, a bearing hole 906 is formed in the vertical plate 9, a copper sleeve 10 is assembled in the bearing hole 906, a first fixing pin hole 902, a second fixing pin hole 903, a third fixing pin hole 904 and a fourth fixing pin hole 905 are formed in the vertical plate 9 around the bearing hole 906, center lines of the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905 are located on the same circumference, the vertical plate 9 is further provided with an arc groove 901, and the arc groove 901 is coaxial with the bearing hole 906 and located on the outer side of the fourth fixing pin hole 905; the connecting line of the centers of the first fixing pin hole 902 and the third fixing pin hole 904 is perpendicular to the base 6, and the connecting line of the centers of the second fixing pin hole 903 and the fourth fixing pin hole 905 is parallel to the base 6.
Preferably, the lug plate 803 is provided with the rotating shaft 4, the outer end of the rotating shaft 4 is rotatably arranged in the copper sleeve 10, the lug plate 803 is further provided with a first movable pin hole 801 and a second movable pin hole 802, a central connecting line of the first movable pin hole 801 and the rotating shaft 4 is parallel to the material carrying plate 804, a phase angle between the second movable pin hole 802 and the first movable pin hole 801 is 45 degrees, the first movable pin hole 801 and the second movable pin hole 802 are respectively adaptive to the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905, the lug plate 803 is further provided with the fixing bolt 3, an optical axis section of the fixing bolt 3 is adaptive to the arc groove 901, and a thread section of the fixing bolt 3 penetrates through the end face of the arc groove 901 and is screwed with the fastening nut 1.
Preferably, the positioning pin 2 is movably fitted with the first movable pin hole 801, the second movable pin hole 802, the first fixing pin hole 902, the second fixing pin hole 903, the third fixing pin hole 904 and the fourth fixing pin hole 905.
Preferably, a guide groove 11 is arranged in the middle of the upper end face of the base 6 in parallel with the vertical plate 9, a first screw 13 is arranged in the auxiliary supporting seat 12 in a screwing mode, a second screw 14 is arranged in the first screw 13 in a screwing mode, a positioning section 1201 in sliding fit with the guide groove 11 is arranged at the bottom of the auxiliary supporting seat 12, and the auxiliary supporting seat 12 can move along the guide groove 11.
Preferably, the rotating shaft 4 is fixedly connected with the ear plate 803 through a screw 5.
The utility model provides a fixture structure for processing an upper cover of a steam turbine, which is arranged on a workbench of a vertical processing center when in use, a first movable pin hole 801 and a fourth fixed pin hole 905 are aligned, a positioning pin 2 is inserted, a fastening nut 1 is screwed to fix a rotary workbench in a horizontal position, an upper cover (not shown) of a bearing body of the steam turbine is arranged on a material carrying plate 804, corresponding holes are processed, after the rotary workbench 8 is rotated by 45 degrees or 90 degrees according to requirements, and the locking is carried out according to the above way, namely, the holes at the position with the phase angle of 45 degrees or 90 degrees can be processed, when the rotary workbench 8 is rotated by 45 degrees or 90 degrees, a corresponding second movable pin hole 802 is aligned with a first fixed pin hole 902 or a first movable pin hole 801 is aligned with a first fixed pin hole 902, thereby saving labor hour, improving the processing efficiency and ensuring the processing precision, wherein, when a hole with a phase angle of 45 degrees or 90 degrees is machined, the rotary workbench rotates to a position and is locked, the position of the auxiliary supporting seat 12 is moved, the first screw 13 and the second screw 14 are screwed out according to the height to directly support the lowest end of the material carrying plate 804, the adverse effects on a positioning pin and a fastening nut after the product dead weight and the cutting force are superposed are avoided, the stability of the clamp structure is improved, and the stability of machining precision is ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a clamp structure is used in processing of steam turbine upper cover which characterized in that includes:
a base (6) is arranged on the base,
vertical plates (9) are fixed on the upper end surface of the base (6) at intervals through bolts (7);
the rotary workbench (8) is rotatably arranged between the vertical plates (9), the rotary workbench (8) is of a U-shaped structure and comprises a material carrying plate (804) and lug plates (803) symmetrically arranged at two ends of the material carrying plate (804), and the outer sides of the two lug plates (803) are correspondingly matched with the inner side of the vertical plate (9);
and the auxiliary supporting seat (12) is arranged on the base (6) and is positioned below the material carrying plate (804) and used for carrying out auxiliary supporting on the lower end of the material carrying plate (804) when the material carrying plate (804) is in a non-horizontal position.
2. The clamp structure for machining the turbine upper cover according to claim 1, wherein: a bearing hole (906) is formed in the vertical plate (9), a copper sleeve (10) is assembled in the bearing hole (906), a first fixing pin hole (902), a second fixing pin hole (903), a third fixing pin hole (904) and a fourth fixing pin hole (905) are formed in the vertical plate (9) around the bearing hole (906), the center lines of the first fixing pin hole (902), the second fixing pin hole (903), the third fixing pin hole (904) and the fourth fixing pin hole (905) are located on the same circumference, an arc groove (901) is further formed in the vertical plate (9), and the arc groove (901) is coaxial with the bearing hole (906) and located on the outer side of the fourth fixing pin hole (905); the central connecting line of the first fixing pin hole (902) and the third fixing pin hole (904) is vertical to the base (6), and the central connecting line of the second fixing pin hole (903) and the fourth fixing pin hole (905) is parallel to the base (6).
3. The clamp structure for machining the turbine upper cover according to claim 2, wherein: the lug plate (803) is provided with a rotating shaft (4), the outer end of the rotating shaft (4) can be rotatably arranged in the copper sleeve (10), the lug plate (803) is also provided with a first movable pin hole (801) and a second movable pin hole (802), the central connecting line of the first movable pin hole (801) and the rotating shaft (4) is parallel to the material carrying plate (804), the phase angle between the second movable pin hole (802) and the first movable pin hole (801) is 45 degrees, the first movable pin hole (801) and the second movable pin hole (802) can be matched with the first fixed pin hole (902), the second fixed pin hole (903), the third fixed pin hole (904) and the fourth fixed pin hole (905), the lug plate (803) is also provided with a fixed bolt (3), the optical axis section of the fixed bolt (3) is matched with the arc groove (901), the thread section of the fixing bolt (3) penetrates through and extends out of the end face of the arc groove (901) and is screwed with a fastening nut (1).
4. The structure of the steam turbine upper cover machining jig according to claim 3, characterized in that: and the first movable pin hole (801), the second movable pin hole (802), the first fixed pin hole (902), the second fixed pin hole (903), the third fixed pin hole (904) and the fourth fixed pin hole (905) are matched and movably provided with positioning pins (2).
5. The clamp structure for machining the turbine upper cover according to claim 1, wherein: a guide groove (11) is formed in the middle of the upper end face of the base (6) and parallel to the vertical plate (9), a first screw rod (13) is arranged in the auxiliary supporting seat (12) in a screwing mode, a second screw rod (14) is arranged in the first screw rod (13) in a screwing mode, a positioning section (1201) in sliding fit with the guide groove (11) is arranged at the bottom of the auxiliary supporting seat (12), and the auxiliary supporting seat (12) can move along the guide groove (11).
6. The structure of the steam turbine upper cover machining jig according to claim 3, characterized in that: the rotating shaft (4) is fixedly connected with the ear plate (803) through a screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123106245.7U CN216264746U (en) | 2021-12-08 | 2021-12-08 | Clamp structure for machining upper cover of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123106245.7U CN216264746U (en) | 2021-12-08 | 2021-12-08 | Clamp structure for machining upper cover of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216264746U true CN216264746U (en) | 2022-04-12 |
Family
ID=81057595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123106245.7U Active CN216264746U (en) | 2021-12-08 | 2021-12-08 | Clamp structure for machining upper cover of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216264746U (en) |
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2021
- 2021-12-08 CN CN202123106245.7U patent/CN216264746U/en active Active
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