CN212470593U

CN212470593U - High-efficient processing frock of steam turbine blade root

Info

Publication number: CN212470593U
Application number: CN202020811767.3U
Authority: CN
Inventors: 谢小勇; 张勇军; 谢仁忠
Original assignee: Nantong Xingdong Blade Technology Co ltd
Current assignee: Nantong Xingdong Blade Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-02-05
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a high-efficient processing frock of steam turbine blade root, its structure is including setting up the base on milling the lathe, but base horizontal reciprocating motion's setting is on milling the lathe, the surface of base is equipped with the face of placing steam turbine blade, a plurality of steam turbine blades are seamless each other along the moving direction of base one by one near placing on the face of placing, when steam turbine blade placed on placing the face, blade root on the steam turbine blade extends base one by one and towards milling cutter on milling the lathe, the top of placing the face is equipped with fixed subassembly, fixed subassembly is used for fixed steam turbine blade in the position of placing the face, the utility model provides high steam turbine blade root's production efficiency.

Description

High-efficient processing frock of steam turbine blade root

The technical field is as follows:

the utility model belongs to the technical field of a blade production technique and specifically relates to a high-efficient processing frock of steam turbine blade root.

Background art:

the blade root of the steam turbine blade mainly comprises the following six forms: 1. t shape blade root, 2, outsourcing convex shoulder T shape blade root, 3, fungus shape blade root, 4, two T type blade roots, 5, forked blade root, 6, fir tree blade root, no matter the blade root of any kind of form, the effect of steam turbine blade root is the location base plane and the steam turbine main shaft rim plate draw-in groove that are regarded as the work piece closely cooperates, therefore, in the course of working of steam turbine blade, all need set up the notch in the blade root position of steam turbine blade, among the prior art, the notch of steam turbine blade is seted up and is mostly single individual processing one by one, the production efficiency is low, can 'T satisfy the needs of enterprise's quantization production.

The utility model has the following contents:

the utility model aims at providing a high-efficient processing frock of steam turbine blade root solves one or more among the above-mentioned prior art problem.

In order to solve the technical problem, the utility model provides a high-efficient processing frock of steam turbine blade root, its structure lies in including setting up the base on milling the lathe, its innovation point: but the setting of base horizontal reciprocating motion is on milling the lathe, and the surface of base is equipped with the face of placing the turbine blade, and a plurality of turbine blades are seamless each other along the moving direction of base one by one near placing on the face of placing, and when the turbine blade was placed on the face of placing, the blade root on the turbine blade extended the base one by one and towards milling the cutter on the lathe, and the top of the face of placing is equipped with fixed subassembly, and fixed subassembly is used for the position of fixed turbine blade at the face of placing.

Further, above-mentioned fixed subassembly includes mount and a plurality of briquetting, and the mount is located and places the face directly over, is equipped with a plurality of adjusting bolt on the mount, and adjusting bolt's bottom is towards placing the face, and the setting that a plurality of briquetting can reciprocate just is located and places the face directly over on the mount, and adjusting bolt's quantity is unanimous with the quantity of briquetting, and adjusting bolt threaded connection just drives the briquetting and reciprocates on the mount at the central point of briquetting one by one.

Further, the length of above-mentioned briquetting corresponds two turbine blades and is near placing the width of face, and the bottom of briquetting is equipped with two fixed blocks, and when the briquetting was pressed in two turbine blades's top, two fixed blocks corresponded and contradicted between two adjacent turbine blades.

Further, be equipped with the calibration piece on the above-mentioned base, the calibration piece includes percentage table and alignment rod, be equipped with the measuring head on the percentage table, the extending direction of the one side of base 1 and measuring head is fixed to the percentage table is unanimous with the extending direction of steam turbine blade root at the face of placing, the rotatable setting of alignment rod is on the measuring head, the rotatory face perpendicular to measuring head of alignment rod, the tip of alignment rod is equipped with the roll adjustment bolt, the opposite side of base is equipped with fixing screw hole, fixing screw hole's position and the position bilateral symmetry of measuring head.

The beneficial effects of the utility model reside in that:

1. the utility model provides a high-efficient processing frock of steam turbine blade root adds man-hour to steam turbine blade root position, fixes on placing the face through arranging steam turbine blade into a plane to with steam turbine blade root position towards milling cutter, at the position of milling lathe horizontal reciprocating motion base, thereby reach and process a plurality of steam turbine blades, improved the machining efficiency of steam turbine blade root position.

2. The utility model provides a high-efficient processing frock of steam turbine blade root when fixing steam turbine blade on placing the face, pushes down steam turbine blade's top through the briquetting that weight is heavier, has guaranteed steam turbine blade and has fixed stability on placing the face, simultaneously, contradicts between adjacent steam turbine blade through setting up the fixed block for the focus of briquetting is concentrated on two fixed blocks respectively, thereby further improvement steam turbine blade is placing the face on fixed stability.

3. The utility model provides a high-efficient processing frock of steam turbine blade root, the blade root on the adjustment steam turbine blade is in the extension length in the base outside, preferentially fix the outside at the face of placing with calibration board parallel, when the adjustment calibration board with place the interval between the face, confirm the calibration board and place the distance between the face through the scale of observing on the percentage table, place the steam turbine blade when placing the face, contradict the blade root position of every steam turbine blade on the calibration board, the unanimity of blade root extension length on the base on every steam turbine blade has been guaranteed, the uniformity of blade root processing position on every steam turbine blade has also been guaranteed simultaneously, the precision of blade root processing on the steam turbine blade has been improved.

Description of the drawings:

fig. 1 is a schematic side view of the present invention.

Figure 2 is a top plan view of the turbine blade of the present invention in alignment.

Fig. 3 is a diagram of the relative position of the milling cutter and the blade root on the turbine blade after final adjustment according to the present invention.

The specific implementation mode is as follows:

in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Examples

In the present embodiment, a specific method for machining a slot of a turbine blade is described by taking a T-shaped blade root as an example.

Fig. 1 to 3 show a specific embodiment of this embodiment, which includes a base 1 disposed on a milling lathe 101, and before the turbine blade 102 is machined, the turbine blade 102 is placed on a placing surface 11 in the following manner: the steam turbine blades 102 are placed on the placing surface 11 in a mutually seamless and abutting mode along the moving direction of the base 1 one by one, when the steam turbine blades 102 are placed on the placing surface 11, blade roots on the steam turbine blades 102 extend out of the base 1 one by one and face milling cutters 103 on a milling lathe, a fixing component 2 is arranged at the top of the placing surface 11, and the fixing component 2 is used for fixing the positions of the steam turbine blades 102 on the placing surface 11.

In the embodiment, after the turbine blades 102 are placed on the placing surface 11 in the above-mentioned manner, and the turbine blades 102 are fixed on the placing surface 11 by the fixing assembly 2, at this time, all the turbine blades 102 to be processed are arranged in a plane and fixed on the placing surface 11, and the blade root positions on the turbine blades 102 extend outside the base 1 one by one, and it should be specifically noted that the blade root on each turbine blade 102 extends in the same length outside the base 1.

In the embodiment, since the base 1 is horizontally and reciprocally disposed on the milling lathe 101, the initial position of the base 1 on the milling lathe 101 is adjusted, the blade root arranged on the first turbine blade 102 on the placing surface 11 is aligned with the milling cutter 103 on the milling lathe 101, this alignment brings the milling cutter 103 and the blade root aligned on the first turbine blade 102 into relative position, after the initial position of the bedplate 1 has been determined, the milling lathe 101 is opened and the longitudinal position of the milling tool 103 and the distance between the milling tool 103 and the blade roots arranged on the first turbine blade 102 are adjusted, in particular, the position adjustment of the milling cutter 103 is realized by the function of the milling lathe 101 itself, belongs to the mature prior art, not specifically described in this embodiment, the relative positions of the blade root position and the milling cutter 103 on the final turbine blade 102 are shown in FIG. 3.

In this embodiment, when machining the blade root of the turbine blade 102 placed on the placing surface 11, the machining of the upper surface and the lower surface of the blade root of the turbine blade 102 needs to be completed, and the specific operating principle is as follows: the position of a base 1 on a milling lathe 101 is moved horizontally, in the process of horizontal movement of the base 1, a milling cutter 103 conducts milling processing on the positions of blade roots on a steam turbine 102 arranged on a placing surface 11, along with the movement of the base 1, after the last steam turbine blade 102 arranged is processed, the movement of the base 1 is stopped, at the moment, the position of the milling cutter 103 is adjusted longitudinally, the milling cutter 103 is moved to the other surface of the positions of the blade roots of the steam turbine blades 102, then, the base 1 is moved back, and the milling cutter 103 completes processing on the other surface of the positions of the blade roots of the steam turbine blades 102.

In this embodiment, when the turbine blade 102 is machined, the machining efficiency of the blade root of the turbine blade 102 is improved by simultaneously machining a plurality of turbine blades.

In this embodiment, to specifically describe the specific structure of the fixing assembly 2, the fixing assembly 2 includes a fixing frame 21 and a plurality of pressing blocks 22, the fixing frame 21 is located right above the placing surface 11, a plurality of adjusting bolts 23 are disposed on the fixing frame 21, the bottom portions of the adjusting bolts 23 face the placing surface 11, the plurality of pressing blocks 22 are disposed on the fixing frame 21 and located right above the placing surface 11, the number of the adjusting bolts 23 is equal to the number of the pressing blocks 22, the adjusting bolts 23 are in one-to-one threaded connection with the center of the pressing blocks 22 and drive the pressing blocks 22 to move up and down on the fixing frame 21, when a turbine blade is placed on the placing surface 11, the adjusting bolts 23 are rotated to drive the pressing blocks 22 to move up and down, so as to place a turbine blade on the placing surface 11, when the turbine blade on the placing surface 11 is fixed, the adjusting bolts 23 are rotated, the pressing block 22 is pressed above the turbine blade, so that the turbine blade 102 is fixed on the placing surface 11, specifically, the pressing block 22 is made of a heavy iron block, and the heavy pressing block 22 improves the stability of fixing the turbine blade 102.

In this embodiment, in order to further improve the stability of the turbine blade 102 fixed on the placing surface 11, the length of the pressing block 22 corresponds to the width of the two turbine blades 102 closely placed on the placing surface 11, two fixing blocks 3 are arranged at the bottom of the pressing block 22, when the pressing block 22 is pressed above the two turbine blades 102, the two fixing blocks 3 correspondingly abut against between the two adjacent turbine blades 102, when the pressing block 22 is pressed above the turbine blade 102, the gravity centers of the downward pressing of the pressing block 22 are respectively concentrated on the two fixing blocks 3 and abut against between the two adjacent turbine blades 102 through the fixing blocks 3, thereby further improving the stability of the turbine blade 102 fixed on the placing surface 11.

In the embodiment, in order to ensure that the extension length of the blade root on each turbine blade 102 outside the base 1 is consistent, the base 1 is provided with the calibration piece 4, the calibration piece 4 comprises a dial indicator 41 and a calibration rod 42, the dial indicator 41 is provided with a measuring head 411, the dial indicator 41 is fixed on one side of the base 1, the extension direction of the measuring head 411 is consistent with the extension direction of the blade root of the turbine blade 102 on the placing surface 11, the calibration rod 42 is rotatably arranged on the measuring head 411, the rotating surface of the calibration rod 42 is perpendicular to the measuring head 411, the end part of the calibration rod 42 is provided with a distance adjusting bolt 5, the other side of the base 1 is provided with a fixing threaded hole 6, the position of the fixing threaded hole 6 is bilaterally symmetrical to the position of the measuring head 411, before the turbine blade 102 is placed on the placing surface 11, the position of the calibration plate 42 on the measuring head 411 is rotated, because the measuring head 411 and the fixing threaded hole 6 are symmetrical, the calibrating plate 42 is parallel to the placing surface 11 at this moment, according to the length of the blade root on the turbine blade 102, the distance between the calibrating plate 42 and the placing surface 11 is adjusted through the distance adjusting bolt 5, so that the calibrating plate 42 is far away from or close to the placing surface 11, the specific distance is determined by observing the scale value on the dial indicator 41, after the distance between the calibrating plate 42 and the placing surface 11 is determined, and when the turbine blade 102 is placed on the placing surface 11, the end part of the blade root on each turbine blade 102 is abutted against the calibrating plate 42, the extension length of the blade root on each turbine blade 102 on the base 1 is ensured to be consistent, meanwhile, the consistency of the processing position of the blade root on each turbine blade 102 is also ensured, and the accuracy of the blade root processing on the turbine blade 102.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-efficient processing frock of steam turbine blade root, its structure is including setting up base (1) on milling lathe (101), its characterized in that: the base (1) can be horizontally arranged on the milling lathe (101) in a reciprocating mode, a placing surface (11) for placing the turbine blades (102) is arranged on the surface of the base (1), the plurality of turbine blades (102) are placed on the placing surface (11) in a mutually seamless and abutting mode along the moving direction of the base (1), when the turbine blades (102) are placed on the placing surface (11), blade roots on the turbine blades (102) extend out of the base (1) one by one and face milling cutters (103) on the milling lathe, a fixing assembly (2) is arranged at the top of the placing surface (11), and the fixing assembly (2) is used for fixing the positions of the turbine blades (102) on the placing surface (11).

2. The efficient machining tool for the blade root of the steam turbine blade according to claim 1, characterized in that: fixed subassembly (2) include mount (21) and a plurality of briquetting (22), mount (21) are located place face (11) directly over, be equipped with a plurality of adjusting bolt (23) on mount (21), the bottom of adjusting bolt (23) towards place face (11), it is a plurality of setting that briquetting (22) can reciprocate is in just be located on mount (21) place face (11) directly over, the quantity of adjusting bolt (23) with the quantity of briquetting (22) is unanimous, adjusting bolt (23) threaded connection one by one just drives central point of briquetting (22) is in reciprocate on mount (21).

3. The efficient machining tool for the blade root of the steam turbine blade according to claim 2, characterized in that: the length of the pressing block (22) corresponds to the width of two turbine blades (102) which are tightly placed on the placing surface (11), two fixing blocks (3) are arranged at the bottom of the pressing block (22), and when the pressing block (22) is pressed above the two turbine blades (102), the two fixing blocks (3) are correspondingly abutted between the two adjacent turbine blades (102).

4. The efficient machining tool for the blade root of the steam turbine blade according to claim 1, characterized in that: be equipped with calibration piece (4) on base (1), calibration piece (4) include percentage table (41) and alignment rod (42), be equipped with measuring head (411) on percentage table (41), percentage table (41) are fixed one side of base (1) just the extending direction and the turbine blade (102) blade root of measuring head (411) are in the extending direction of placing face (11) is unanimous, alignment rod (42) rotatable setting is in on measuring head (411), the surface of rotation perpendicular to of alignment rod (42) measuring head (411), the tip of alignment rod (42) is equipped with roll adjustment bolt (5), the opposite side of base (1) is equipped with fixed screw hole (6), the position of fixed screw hole (6) with the position bilateral symmetry of measuring head (411).