CN201728496U - Positioning clamp used for welding clapboard - Google Patents
Positioning clamp used for welding clapboard Download PDFInfo
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- CN201728496U CN201728496U CN2010201465291U CN201020146529U CN201728496U CN 201728496 U CN201728496 U CN 201728496U CN 2010201465291 U CN2010201465291 U CN 2010201465291U CN 201020146529 U CN201020146529 U CN 201020146529U CN 201728496 U CN201728496 U CN 201728496U
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Abstract
The utility model designs a positioning clamp used for welding a clapboard, which comprises a welding support used for supporting a fixed clapboard, a vane positioning clamp is arranged on the welding support and corresponds to a vane in welding; the vane positioning clamp is a ring table; the edge of the inner ring and the edge of the outer ring of the surface of the ring table are respectively, uniformly and circularly provided with inner teeth and outer teeth the number of which is equal to that of the vanes; adjacent two outer teeth are coordinated with corresponding adjacent inner teeth, thus forming a bracket structure for vanes; when the vane is arranged in the bracket structure, the tooth surfaces of the outer teeth are tangent to the back arc of the vane; the tooth backs of the outer teeth and the tooth backs of the inner teeth push against a steam outlet edge of the vane; the bracket structure corresponds to the welding position of the corresponding vane; and the vane positioning clamp is connected on the welding support in a positioning way, and the centers thereof are consistent. The positioning clamp used for welding the clapboard can position the vanes in welding, enables the welding to be simpler and more convenient, and effectively controls deformation in welding.
Description
Technical field
The utility model relates to a kind of anchor clamps that are applied to the steam turbine field, especially a kind of positioning fixture for welding baffle plate.
Background technology
In existing steam turbine, stator blade and movable vane have constituted the most basic level, and stator blade normally is welded on the partition board of steam turbine, so in the steam turbine operation process, very harsh to the requirement of stator blade position (as precision such as established angle, radiation, throat openings).Existing welding manner is comparatively complicated, during welding, dividing plate clamps the location by the semicircle assembling-welding fixtures, weld again by the position of manual underlining blade then, there is more deficiency in such mode, at first, a complete circular dividing plate need be divided into twice welding just can be finished, the gradation welding causes that easily cumulative errors are in big problem, and whether welding quality is up to standard will finish simultaneously when testing and could find at two, and the baffle dimensions that two semicircles often occur comparatively standard and combining has problems; Secondly, existing blade welding is not only by manual location, and when welding, also be to finish one by one by the artificial proficiency location mode of welding on the other hand, this pure artificial locate mode of artificial line not only is easy to generate error when line, and when welding also easily because of human factor (shake unavoidable as human body) produces error, be difficult to guarantee the welding precision of blade.Moreover, in order to ensure the quality of products, also can reweld because of source of error usually, welding repeatedly all has damage to blade and dividing plate, and the wasting manpower and material resources; Moreover, because big, the characteristics such as blade is elongated, poor rigidity, blade material weldability difference of complex structure, overall dimensions of dividing plate, difficulty is very big when not only welding, and be prone to distortion after welding, problems such as crackle clothes appear in weld seam, even weld by standard, but also situation not up to standard can appear after the cooling.In view of many difficult point problems such as welding diaphragm blade positioning accuracy deficiency, welding, heat treatment be yielding, and the volume and weight of partition board of steam turbine is very big, quality requirement to welding is high again, existing welding manner and welding equipment no matter on precision, qualitatively, still on operating efficiency, all be difficult to satisfy the demands the bottleneck problem in this field of dividing plate welding also becoming.
Summary of the invention
The purpose of this utility model is that provide for the deficiency that solves above-mentioned technology a kind of can position blade when welding, and welding is positioning fixture for welding baffle plate more simply and easily.
In order to achieve the above object, the positioning fixture for welding baffle plate that the utility model is designed, it comprises the dress weldering support that is used for the support fixation dividing plate, on this dress weldering support, the corresponding position of blade is provided with the blade positioning fixture during welding, described blade positioning fixture is an annulus platform, on the interior ring bead of this annulus platform table top and outer shroud bead, be equipped with internal tooth and external tooth respectively equably with the blade equal number, adjacent two external tooths with and their corresponding two adjacent internal tooths cooperatively interact and constitute the supportive structure of a blade, in the time of in blade is arranged on supportive structure, the back of the body arc of the flank of tooth of external tooth and blade is tangent, the back of tooth and another adjacent blades lagging edge offset, the internal tooth back of tooth and back edge offset, this supportive structure is corresponding with the welding position of respective vanes, this blade positioning fixture is located by connecting on the dress weldering support, and the center unanimity.Described annulus platform can be a structure of removing a concentric small cylinder in the large cylinder, also can be the structure of removing a concentric small cylinder in the round platform.Blade can be placed in the supporting structure during welding, because supportive structure all is that fix and corresponding with the welding position of blade, need not be again as in the past to the operation of ruling of each blade, and vanes is crossed the external tooth flank of tooth, the back of tooth 2 points, 3 true fine positionings of the internal tooth back of tooth, fixing, locating effect is better.
Preferred scheme is that described external tooth is inclined to set, and internal tooth is vertical setting, and the flank of tooth of external tooth is an inclined-plane, and the external tooth and the internal tooth back of tooth and lagging edge offset.
In order effectively to control in the welding process and the problem on deformation in the post weld heat treatment, preferred scheme also is provided with the resistance to deformation welding support above dress weldering support, resistance to deformation welding support bottom surface is provided with the inside and outside two-layer fixing feet that distributes ringwise, the fixing feet of its internal layer is corresponding with the interior ring of dividing plate, and its outer field fixing feet is corresponding with the outer shroud of dividing plate.
As preferably, described blade positioning fixture is provided with the positioning spigot that cooperatively interacts with the contact-making surface of dress weldering support, also is provided with the connecting hole that matches between them, and described connecting hole is circle distribution.
The positioning fixture for welding baffle plate that the utility model obtains has guaranteed the accuracy of location dimension, has reduced the accumulated error of intermediate link, has guaranteed the quality of frock, and then guarantees the blade positioning accuracy of product; Make that in addition welding is more simple and convenient, improved operating efficiency, reduced labour intensity, the resistance to deformation welding support has further been controlled the distortion of whole work-piece in weld job and heat treatment process effectively by the welding of rigid structure and workpiece.
Description of drawings
Fig. 1 is the positioning fixture for welding baffle plate scheme of erection;
Fig. 2 is embodiment 2 resistance to deformation welding support schemes of erection;
Fig. 3 is embodiment 1 a blade positioning fixture vertical view;
Fig. 4 is the location schematic diagram of embodiment 1 internal tooth and blade;
Fig. 5 is the location schematic diagram of embodiment 1 external tooth and blade;
Fig. 6 resistance to deformation support vertical view;
Fig. 7 is the plane of blade positioning fixture.
Among the figure: dress weldering support 1, blade positioning fixture 2, internal tooth 3, external tooth 4, the external tooth back of tooth 5, the external tooth flank of tooth 6, resistance to deformation welding support 7, fixing feet 8, dividing plate 9, connecting hole 10, blade 11, back edge 12, the internal tooth back of tooth 13, vanepiston line A, leaf grating center line B, blade positioning fixture center line C.
The specific embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
As shown in Figure 1, the described positioning fixture for welding baffle plate of present embodiment, it comprises the dress weldering support 1 that is used for support fixation dividing plate 9, it is characterized in that on this dress weldering support 1, the corresponding position of blade is provided with blade positioning fixture 2 during welding, as shown in Figure 7, described blade positioning fixture 2 is an annulus platform, on the interior ring bead of this annulus platform table top and outer shroud bead, be equipped with internal tooth 3 and external tooth 4 respectively equably with the blade equal number, internal tooth 3 is a straight-tooth, external tooth 4 is a helical teeth, adjacent two external tooths 4 with and their corresponding adjacent internal tooths 3 cooperatively interact and constitute the supportive structure of a blade, as Fig. 4, shown in Figure 5, in the time of in blade is arranged on supportive structure, the flank of tooth 6 of external tooth 4 is tangent with the back of the body arc of blade 11, and the external tooth back of tooth 5 and the internal tooth back of tooth 13 offset with blade 11 lagging edges, and this supportive structure is corresponding with the welding position of respective vanes, this blade positioning fixture 2 is located by connecting on the dress weldering support 1, and the center unanimity.Described being located by connecting refers to that blade positioning fixture 2 and dress weldering support 1 accurately link together behind the location mutually, wherein the location refers to that the described blade positioning fixture 2 and the contact-making surface of dress weldering support 1 are provided with the positioning spigot that cooperatively interacts, also be provided with finger setting between them, and the connecting hole 10 that matches, described connecting hole 10 is circle distribution, realizes connecting by set bolt is set in connecting hole 10.
During welding, dividing plate 9 is fixedly installed on the dress weldering support 1, blade positioning fixture 2 then between the inner and outer ring of dividing plate 9, can be placed on all blades to be welded in the supportive structure of blade positioning fixture 2 inside and outside teeth 4 formations one by one, then blade is welded on the dividing plate 9.
The quantity of internal tooth and external tooth can be each 50, also can change according to the actual quantity of blade.
Embodiment 2
As shown in Figure 2, the described positioning fixture for welding baffle plate of present embodiment, above dress weldering support 1, also be provided with resistance to deformation welding support 7 as different from Example 1, resistance to deformation welding support 7 bottom surfaces are provided with the inside and outside two-layer fixing feet 8 that distributes ringwise, the fixing feet 8 of its internal layer is corresponding with the interior ring of dividing plate 9, its outer field fixing feet 8 is corresponding with the outer shroud of dividing plate 9, as shown in Figure 2.
During use, blade positioning fixture 2 and dress weldering support 1 are assembled into one by the seam that cooperatively interacts, and use finger setting, make both become a global facility.According to the location dimension of product parts (dividing plate 9 inner and outer rings), guarantee that the center of anchor clamps overlaps with the center of product parts.Be positioned on the fabrication platform dividing plate 9 integral body fixing, the fixing feet 8 of resistance to deformation welding support 7 is welded into one with dividing plate 9 inner and outer rings point, resistance to deformation welding support 7 can effectively prevent deformation as a rigid structure, and is quite effective for the distortion of the dividing plate 9 in control dividing plate 9 welding processes.After resistance to deformation welding support 7 and positioner be assembled into one, blade is installed one by one in the supportive structure that blade positioning fixture 2 inside and outside teeth constitute, this supportive structure three-point fix is each blade accurately, again blade is carried out comprehensive welding.
Claims (5)
1. positioning fixture for welding baffle plate, it comprises the dress weldering support that is used for the support fixation dividing plate, it is characterized in that on this dress weldering support, the corresponding position of blade is provided with the blade positioning fixture during welding, described blade positioning fixture is an annulus platform, on the interior ring bead of this annulus platform table top and outer shroud bead, be equipped with internal tooth and external tooth respectively equably with the blade equal number, adjacent two external tooths with and their corresponding adjacent internal tooths cooperatively interact and constitute the supportive structure of a blade, in the time of in blade is arranged on supportive structure, the back of the body arc of the flank of tooth of external tooth and blade is tangent, the external tooth back of tooth and the internal tooth back of tooth and back edge offset, this supportive structure is corresponding with the welding position of respective vanes, this blade positioning fixture is located by connecting on the dress weldering support, and the center unanimity.
2. positioning fixture for welding baffle plate according to claim 1 is characterized in that described external tooth is inclined to set, and internal tooth is vertical setting, and the flank of tooth of external tooth is an inclined-plane, and the external tooth and the internal tooth back of tooth and lagging edge offset.
3. positioning fixture for welding baffle plate according to claim 1 and 2, it is characterized in that above dress weldering support, also being provided with the resistance to deformation welding support, resistance to deformation welding support bottom surface is provided with the inside and outside two-layer fixing feet that distributes ringwise, the fixing feet of its internal layer is corresponding with the interior ring of dividing plate, and its outer field fixing feet is corresponding with the outer shroud of dividing plate.
4. positioning fixture for welding baffle plate according to claim 1 and 2, it is characterized in that the described blade positioning fixture and the contact-making surface of dress weldering support are provided with the positioning spigot that cooperatively interacts, also be provided with the connecting hole that matches between them, described connecting hole is circle distribution.
5. positioning fixture for welding baffle plate according to claim 3, it is characterized in that the described blade positioning fixture and the contact-making surface of dress weldering support are provided with the positioning spigot that cooperatively interacts, also be provided with the connecting hole that matches between them, described connecting hole is circle distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201465291U CN201728496U (en) | 2010-03-31 | 2010-03-31 | Positioning clamp used for welding clapboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201465291U CN201728496U (en) | 2010-03-31 | 2010-03-31 | Positioning clamp used for welding clapboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728496U true CN201728496U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201465291U Expired - Lifetime CN201728496U (en) | 2010-03-31 | 2010-03-31 | Positioning clamp used for welding clapboard |
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| CN (1) | CN201728496U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797674A (en) * | 2010-03-31 | 2010-08-11 | 杭州汽轮机股份有限公司 | Positioning fixture for welding baffle plate |
| CN102950367A (en) * | 2012-11-14 | 2013-03-06 | 哈尔滨汽轮机厂有限责任公司 | Welding method of blade of low pressure ring type division plate and inner and outer rings for steam turbine |
| CN103240555A (en) * | 2013-05-09 | 2013-08-14 | 上海振华重工集团（南通）有限公司 | Station tooling for manufacturing partition plates welded from both sides |
| CN103894736A (en) * | 2012-12-24 | 2014-07-02 | 中国科学院沈阳自动化研究所 | Blade laser impact strengthening fixture |
| CN104354146A (en) * | 2014-09-28 | 2015-02-18 | 上海锅炉厂有限公司 | Double-frustum-shaped deformation-preventing assembling bracket |
| CN114102028A (en) * | 2021-12-25 | 2022-03-01 | 常州凯度机电有限公司 | Welding tool for steam turbine partition plate |
-
2010
- 2010-03-31 CN CN2010201465291U patent/CN201728496U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797674A (en) * | 2010-03-31 | 2010-08-11 | 杭州汽轮机股份有限公司 | Positioning fixture for welding baffle plate |
| CN101797674B (en) * | 2010-03-31 | 2012-11-28 | 杭州汽轮机股份有限公司 | Positioning fixture for welding baffle plate |
| CN102950367A (en) * | 2012-11-14 | 2013-03-06 | 哈尔滨汽轮机厂有限责任公司 | Welding method of blade of low pressure ring type division plate and inner and outer rings for steam turbine |
| CN103894736A (en) * | 2012-12-24 | 2014-07-02 | 中国科学院沈阳自动化研究所 | Blade laser impact strengthening fixture |
| CN103894736B (en) * | 2012-12-24 | 2015-08-26 | 中国科学院沈阳自动化研究所 | The laser impact intensified fixture of a kind of leaf dish |
| CN103240555A (en) * | 2013-05-09 | 2013-08-14 | 上海振华重工集团（南通）有限公司 | Station tooling for manufacturing partition plates welded from both sides |
| CN104354146A (en) * | 2014-09-28 | 2015-02-18 | 上海锅炉厂有限公司 | Double-frustum-shaped deformation-preventing assembling bracket |
| CN114102028A (en) * | 2021-12-25 | 2022-03-01 | 常州凯度机电有限公司 | Welding tool for steam turbine partition plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110202 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |