Through-flow guide vane clamping tool

Abstract

The utility model discloses a through-flow guide vane clamping tool. Wherein a short shaft head sizing block sliding rail and a long shaft head sizing block sliding rail are arranged on the working table along the same straight line at intervals, at least four guide vane sizing block sliding rails are further arranged on the working table, and the guide vane sizing block sliding rails, the short shaft head sizing block sliding rail and the long shaft head sizing block sliding rail are arranged in a radial shape in an overlook mode. The short shaft head sizing block is installed in the short shaft head sizing block sliding rail through a T-shaped groove special bolt, and the long shaft head sizing block is installed in the long shaft head sizing block sliding rail through a T-shaped groove special bolt. The water inlet side guide vane sizing block and the water outlet side guide vane sizing block are installed in the guide vane sizing block sliding rails through T-shaped groove special bolts respectively. The workbench is installed in a robot work station, so that in the manufacturing process of surfacing stainless steel with spherical surfaces at the two ends of a guide vane body, when the guide vane body needs to be replaced, the guide vane can be aligned and accurately positioned only through simple adjustment, the surfacing guide vane has high consistency, and the pattern requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool accessories, and specifically relates to a through-flow guide vane clamping tooling. Background Technique

[0002] The guide vane of a tubular turbine is an axially symmetric workpiece, which is an important component for conditioning the flow rate of the unit. To improve the abrasion resistance and corrosion resistance of the spherical surfaces at both ends of the guide vane and extend its service life, it is required by design to build up a stainless steel layer with a certain thickness on the spherical surfaces of the guide vane. With the development of modern industry towards intelligence, and since the guide vane belongs to small-batch products, our company uses a robot to build up the stainless steel layer. The error of each workpiece clamping determines the quality of the robot build-up welding.

[0003] Therefore, a tooling is needed that can ensure the consistency of each clamping of guide vanes of the same model, can be adjusted, and is applicable to guide vanes of different models. Content of the Utility Model

[0004] In view of the problems existing in the background technique, the utility model provides a through-flow guide vane clamping tooling, and the technical solution includes: a workbench, a short shaft head pad, a long shaft head pad, an inlet edge guide vane pad, an outlet edge guide vane pad, a short shaft head pad slide rail, a long shaft head pad slide rail, and a guide vane pad slide rail. Among them, the short shaft head pad slide rail and the long shaft head pad slide rail are arranged at intervals along the same straight line on the workbench, and at least four guide vane pad slide rails are also opened on the workbench; the short shaft head pad is installed in the short shaft head pad slide rail through a special "T"-slot bolt, and the long shaft head pad is installed in the long shaft head pad slide rail through a special "T"-slot bolt; the inlet edge guide vane pad and the outlet edge guide vane pad are respectively installed in the guide vane pad slide rail through a special "T"-slot bolt, and the long shaft head pad, the inlet edge guide vane pad, the short shaft head pad, and the outlet edge guide vane pad are arranged in a clockwise order when viewed from above.

[0005] The short shaft of the guide vane is placed in the short shaft head placement groove of the short shaft head pad, and the outer end of the long shaft of the guide vane is placed in the long shaft head placement groove of the long shaft head pad.

[0006] The short shaft head pad includes: a second base plate, a second vertical plate, a short shaft head placement block, a short shaft head placement groove, a short shaft head contact surface, and a second mounting hole. Among them, the second base plate and the second vertical plate with an inverted "T" shape layout in side view are integrally fixed, a short shaft head placement block is integrally fixed at the first included angle of the second base plate and the second vertical plate, a second mounting hole through which the special "T"-slot bolt can pass is opened on the second base plate, and the second mounting hole is arranged in the direction of the second included angle of the second base plate and the second vertical plate; a short shaft head placement groove is provided on the upper end surface of the short shaft head placement block, and a short shaft head contact surface is arranged on the side of the second vertical plate facing the short shaft head placement groove, and the end surface of the short shaft of the guide vane is in close contact with the short shaft head contact surface.

[0007] The long-axis head shim includes: a first base plate, a first vertical plate, a long-axis head placement groove, a shaft shoulder contact end face, and a first mounting hole. The first base plate and the first vertical plate, which are arranged in an "L" shape in side view, are integrally fixed. A first mounting hole for a "T"-shaped groove special bolt that can pass through is formed in the first base plate. A long-axis head placement groove is provided on the upper end face of the first vertical plate, and a shaft shoulder contact end face is provided on the first vertical plate. The long-axis shaft shoulder of the guide vane is in close contact with the shaft shoulder contact end face.

[0008] The inlet edge guide vane shim includes: an inlet edge fixing plate below and an inlet edge fitting block above. The inlet edge fixing plate and the inlet edge fitting block are integrally fixed. An "L"-shaped inlet edge fitting groove is formed in the inlet edge fitting block. The horizontal end face of the inlet edge of the "L"-shaped inlet edge fitting groove is in contact with the lower part of the inlet edge of the guide vane, and the vertical end face of the inlet edge of the "L"-shaped inlet edge fitting groove is in contact with the outer end of the inlet edge of the guide vane. Two inlet edge waist-shaped holes that cooperate with the "T"-shaped groove special bolt and nut are formed in the inlet edge fixing plate.

[0009] The inlet edge waist-shaped hole is a stepped hole.

[0010] The outlet edge guide vane shim includes: an outlet edge fixing plate below and an outlet edge fitting block above. The outlet edge fixing plate and the outlet edge fitting block are integrally fixed. An "L"-shaped outlet edge fitting groove is formed in the outlet edge fitting block. The horizontal end face of the outlet edge of the "L"-shaped outlet edge fitting groove is in contact with the lower part of the outlet edge of the guide vane, and the vertical end face of the outlet edge of the "L"-shaped outlet edge fitting groove is in contact with the outer end of the outlet edge of the guide vane. Two outlet edge waist-shaped holes that cooperate with the "T"-shaped groove special bolt and nut are formed in the outlet edge fixing plate.

[0011] The outlet edge waist-shaped hole is a stepped hole.

[0012] The guide vane shim slide rail, the short-axis head shim slide rail, and the long-axis head shim slide rail are arranged in a radial pattern in a top view.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The workbench of this guide vane clamping tooling is installed in the robot workstation. During the manufacturing process of surfacing the two spherical stainless steels at both ends of the guide vane body, after the first guide vane is clamped, welded programmed, and welded, when the subsequent guide vane needs to be replaced, during the process of hoisting the same set of guide vanes (usually 16 in one set) to the rotary workbench guide vane clamping tooling, only simple adjustment is required to align the guide vane, achieving precise positioning of the guide vane. By repeating the guide vane surfacing procedure, the initial robot positioning and correction program can be omitted, making the surfaced guide vanes highly consistent and meeting the drawing requirements.

[0015] 2. In the field of tubular turbine technology, it relies on tooling to achieve rapid clamping and positioning of guide vanes to ensure the consistency of robotic welding. It has the advantages of simple use, good workpiece forming effect, and low tooling manufacturing cost.

[0016] 3. The setting of multiple slide rails enables the angle change of the water inlet and outlet side shims on the machine workbench plane, meeting the adjustability of support and positioning for different types of guide vanes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of a tubular guide vane clamping tooling of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of another perspective of the embodiment of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the assembled state of the embodiment of the present utility model and the guide vane;

[0020] Figure 4 It is a schematic structural diagram of another perspective of the assembled state of the embodiment of the present utility model and the guide vane.

[0021] Wherein: 1 - Workbench, 2 - Short shaft head shim, 3 - Long shaft head shim, 4 - Water inlet side guide vane shim, 5 - Water outlet side guide vane shim, 6 - Shaft head shim slide rail, 7 - Guide vane shim slide rail, 8 - Guide vane shim slide rail, 10 - Guide vane, 12 - Short shaft, 13 - Long shaft, 14 - Guide vane water inlet side, 15 - Guide vane water outlet side, 21 - Second substrate, 22 - Second vertical plate, 23 - Short shaft head placement block, 24 - Short shaft head placement groove, 25 - Short shaft head contact surface, 31 - First substrate, 32 - First vertical plate, 33 - Long shaft head placement groove, 34 - Shaft shoulder contact end face, 41 - Water inlet side fixing plate, 42 - Water inlet side fitting block, 411 - Water inlet side waist-shaped hole, 421 - "L"-shaped water inlet side fitting groove, 4211 - Water inlet side horizontal end face, 4212 - Water inlet side vertical end face, 51 - Water outlet side fixing plate, 52 - Water outlet side fitting block, 511 - Water outlet side waist-shaped hole, 521 - "L"-shaped water outlet side fitting groove, 5211 - Water outlet side horizontal end face, 5212 - Water outlet side vertical end face. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0023] As Figure 1 and Figure 2The embodiment of the utility model shown includes: a workbench 1, a short shaft head shim 2, a long shaft head shim 3, an inlet guide vane shim 4, an outlet guide vane shim 5, a short shaft head shim slide rail 6, a long shaft head shim slide rail 7, and a guide vane shim slide rail 8. Among them, the short shaft head shim slide rail 6 and the long shaft head shim slide rail 7 are arranged at intervals along the same straight line on the workbench 1. At least four guide vane shim slide rails 8 are also opened on the workbench 1. The guide vane shim slide rail 8, the short shaft head shim slide rail 6, and the long shaft head shim slide rail 7 are arranged in a radial layout when viewed from above; the short shaft head shim 2 is installed in the short shaft head shim slide rail 6 through a special "T"-slot bolt, and the long shaft head shim 3 is installed in the long shaft head shim slide rail 7 through a special "T"-slot bolt; the inlet guide vane shim 4 and the outlet guide vane shim 5 are respectively installed in the guide vane shim slide rail 8 through special "T"-slot bolts. The long shaft head shim 3, the inlet guide vane shim 4, the short shaft head shim 2, and the outlet guide vane shim 5 are arranged in a clockwise order when viewed from above;

[0024] The long shaft head shim 3 and the short shaft head shim 2 in the axial direction can be adjusted according to the length of the guide vane through the long shaft head shim slide rail 7, the short shaft head shim slide rail 6, and bolts, playing a role in axially positioning and supporting the guide vane; the inlet guide vane shim 4 and the outlet guide vane shim 5 can be adjusted in opening through the guide vane shim slide rail 8 and bolts. The outlet side of the guide vane is the machined surface, playing a role in positioning the inlet side and the outlet side of the guide vane.

[0025] As Figure 1 and Figure 2 The short shaft head shim 2 shown in

[0026] As Figure 1 and Figure 2The long-axis head shim 3 shown in the figure includes: a first substrate 31, a first vertical plate 32, a long-axis head placement groove 33, a shaft shoulder contact end face 34, and a first mounting hole. The first substrate 31 and the first vertical plate 32, which are in an "L" shape layout in side view, are integrally and fixedly connected. A first mounting hole for a "T"-shaped groove special bolt that can pass through is provided on the first substrate 31; a long-axis head placement groove 33 is provided on the upper end face of the first vertical plate 32. The outer end of the long axis of the guide vane 10 is placed in the long-axis head placement groove 33 and fits. A shaft shoulder contact end face 34 is provided on the first vertical plate 32. The shaft shoulder of the long axis 13 of the guide vane 10 contacts and fits tightly with the shaft shoulder contact end face 34. Therefore, the shaft shoulder contact end face 34 is perpendicular to the axis of the long-axis head placement groove 33.

[0027] As Figure 1 and Figure 2 The inlet edge guide vane shim 4 shown in the figure includes: a lower inlet edge fixing plate 41 and an upper inlet edge fitting block 42. The inlet edge fixing plate 41 and the inlet edge fitting block 42 are integrally and fixedly connected. An "L"-shaped inlet edge fitting groove 421 is provided on the inlet edge fitting block 42. The horizontal end face 4211 of the inlet edge of the "L"-shaped inlet edge fitting groove 421 fits with the lower part of the inlet edge 14 of the guide vane, and the vertical end face 4212 of the inlet edge of the "L"-shaped inlet edge fitting groove 421 fits with the outer end of the inlet edge 14 of the guide vane; two inlet edge waist-shaped holes 411 that cooperate with the "T"-shaped groove special bolt and nut are provided on the inlet edge fixing plate 41, and the inlet edge waist-shaped holes 411 are stepped holes.

[0028] As Figure 1 and Figure 2 The outlet edge guide vane shim 5 shown in the figure includes: a lower outlet edge fixing plate 51 and an upper outlet edge fitting block 52. The outlet edge fixing plate 51 and the outlet edge fitting block 52 are integrally and fixedly connected. An "L"-shaped outlet edge fitting groove 521 is provided on the outlet edge fitting block 52. The horizontal end face 5211 of the outlet edge of the "L"-shaped outlet edge fitting groove 521 fits with the lower part of the outlet edge 15 of the guide vane, and the vertical end face 5212 of the outlet edge of the "L"-shaped outlet edge fitting groove 521 fits with the outer end of the outlet edge 15 of the guide vane; two outlet edge waist-shaped holes 511 that cooperate with the "T"-shaped groove special bolt and nut are provided on the outlet edge fixing plate 51, and the outlet edge waist-shaped holes 511 are stepped holes.

[0029] When assembling the tooling and the guide vane:

[0030] Install and adjust the long-axis head shim 3 and the short-axis head shim 2 according to the center of gravity position of the guide vane and the length of the guide vane large plate;

[0031] Lift the guide vane, and place the long axis head and the short axis head on the long-axis head placement groove 33 and the short-axis head placement groove 24 respectively;

[0032] Adjust the angles of the inlet guide vane shim 4 and the outlet guide vane shim 5 successively according to the slope of the inlet and outlet water edges. The outlet guide vane shim 5 is tightened against the outlet edge 15 of the guide vane (the outlet edge is the machined surface). By changing the fixed positions of the two special "T"-slot bolts differently, the angle adjustment between the shim and the workpiece can be achieved. After adjustment, the shim is fixedly connected to the rotary table of the positioner through connecting fasteners such as the special "T"-slot bolts; the adjustment method of the inlet guide vane shim 4 is the same as that of the outlet guide vane shim 5;

[0033] Finally, tighten the long shaft head shim 3 and the short shaft head shim 2 and fasten them, and the single assembly is completed, as Figure 3 shown.

[0034] When it is necessary to replace the next guide vane for assembly after processing, just loosen the inlet guide vane shim 4 and the long shaft head shim 3, replace the guide vane. After the short shaft head of the guide vane and the outlet edge 15 of the guide vane are tightened against the corresponding position tooling, locking the inlet guide vane shim 4 and the long shaft head shim 3 realizes repeated accurate positioning; because both the guide vane shaft head and the outlet edge 15 of the guide vane are machined surfaces, there will be no large error in the implementation of the robot welding program, thus realizing the rapid positioning of the guide vanes of the same unit; at the same time, the through-hole of the shim and the rotary table 1 of the positioner and the special "T"-slot bolts can realize the adjustment of the position and angle, so this tooling also has a certain degree of universality within a certain range.

Claims

1. A cross-flow guide vane clamping tooling, characterized in that Including: A workbench (1), a short shaft head shim (2), a long shaft head shim (3), an inlet guide vane shim (4), an outlet guide vane shim (5), a short shaft head shim slide rail (6), a long shaft head shim slide rail (7) and a guide vane shim slide rail (8). Among them, the short shaft head shim slide rail (6) and the long shaft head shim slide rail (7) are arranged at intervals along the same straight line on the workbench (1). At least four guide vane shim slide rails (8) are also opened on the workbench (1). The guide vane shim slide rail (8), the short shaft head shim slide rail (6) and the long shaft head shim slide rail (7) are arranged in a radial pattern when viewed from above. The short shaft head shim (2) is installed in the short shaft head shim slide rail (6) through a special bolt for "T" groove. The long shaft head shim (3) is installed in the long shaft head shim slide rail (7) through a special bolt for "T" groove. The inlet guide vane shim (4) and the outlet guide vane shim (5) are respectively installed in the guide vane shim slide rail (8) through special bolts for "T" groove. The long shaft head shim (3), the inlet guide vane shim (4), the short shaft head shim (2) and the outlet guide vane shim (5) are arranged in a clockwise order when viewed from above.

2. The through-flow guide vane clamping tooling according to claim 1, wherein The short shaft (12) of the guide vane (10) is placed in the short shaft head placement groove (24) of the short shaft head shim (2), and the outer end of the long shaft of the guide vane (10) is placed in the long shaft head placement groove (33) of the long shaft head shim (3).

3. A cross-flow guide vane clamping tooling according to claim 2, characterized in that, The short shaft head shim (2) includes: a second base plate (21), a second vertical plate (22), a short shaft head placement block (23), a short shaft head placement groove (24), a short shaft head contact surface (25) and a second mounting hole. Among them, the second base plate (21) and the second vertical plate (22) with an inverted "T" shape layout in side view are integrally fixed. A short shaft head placement block (23) is integrally fixed at the first included angle of the second base plate (21) and the second vertical plate (22). A second mounting hole through which a special bolt for "T" groove can pass is installed on the second base plate (21). The second mounting hole is arranged in the direction of the second included angle of the second base plate (21) and the second vertical plate (22). A short shaft head placement groove (24) is provided on the upper end surface of the short shaft head placement block (23). A short shaft head contact surface (25) is arranged on the side of the second vertical plate (22) facing the short shaft head placement groove (24). The end face of the short shaft (12) of the guide vane (10) is in close contact with the short shaft head contact surface (25).

4. The through-flow guide vane clamping tooling according to claim 2, characterized in that, The long shaft head shim (3) includes: a first base plate (31), a first vertical plate (32), a long shaft head placement groove (33), a shaft shoulder contact end face (34) and a first mounting hole. Among them, the first base plate (31) and the first vertical plate (32) with an "L" shape layout in side view are integrally fixed. A first mounting hole through which a special bolt for "T" groove can pass is installed on the first base plate (31). A long shaft head placement groove (33) is provided on the upper end surface of the first vertical plate (32). A shaft shoulder contact end face (34) is provided on the first vertical plate (32). The shaft shoulder of the long shaft (13) of the guide vane (10) is in close contact with the shaft shoulder contact end face (34).

5. A cross-flow guide vane clamping tooling according to claim 1, characterized in that, The stay ring pad for the inlet edge (4) includes: a stay ring fixing plate (41) at the lower part and a stay ring fitting block (42) at the upper part. The stay ring fixing plate (41) and the stay ring fitting block (42) are integrally and fixedly connected. An "L"-shaped stay ring fitting groove (421) is formed on the stay ring fitting block (42). The horizontal end face (4211) of the inlet edge of the "L"-shaped stay ring fitting groove (421) fits with the lower part of the inlet edge of the guide vane (14), and the vertical end face (4212) of the inlet edge of the "L"-shaped stay ring fitting groove (421) fits with the outer end of the inlet edge of the guide vane (14) of the guide vane (10). Two stay ring waist-shaped holes (411) that cooperate with the special bolts and nuts of the "T"-shaped groove are formed on the stay ring fixing plate (41).

6. The through-flow guide vane clamping tooling according to claim 5, characterized in that, The stay ring waist-shaped hole (411) is a stepped hole.

7. A cross-flow guide vane clamping tooling according to claim 1, characterized in that, The stay ring pad for the outlet edge (5) includes: a stay ring fixing plate (51) at the lower part and a stay ring fitting block (52) at the upper part. The stay ring fixing plate (51) and the stay ring fitting block (52) are integrally and fixedly connected. An "L"-shaped stay ring fitting groove (521) is formed on the stay ring fitting block (52). The horizontal end face (5211) of the outlet edge of the "L"-shaped stay ring fitting groove (521) fits with the lower part of the outlet edge of the guide vane (15), and the vertical end face (5212) of the outlet edge of the "L"-shaped stay ring fitting groove (521) fits with the outer end of the outlet edge of the guide vane (15). Two stay ring waist-shaped holes (511) that cooperate with the special bolts and nuts of the "T"-shaped groove are formed on the stay ring fixing plate (51).

8. A cross-flow guide vane clamping tooling according to claim 7, characterized in that, The stay ring waist-shaped hole (511) is a stepped hole.

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