CN217942245U

CN217942245U - Welding spot downward moving stirring and mixing type grid welding clamp

Info

Publication number: CN217942245U
Application number: CN202221021137.1U
Authority: CN
Inventors: 王美忠; 钟凯; 赵亚军; 王润民
Original assignee: Chengdu Fenghuo Runda Technology Co ltd
Current assignee: Chengdu Fenghuo Runda Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-12-02
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a what solder joint moved down stirs mixed type framework welding jig, it includes locating plate subassembly, positioning assembly, the positioning guide pillar, it links together through the positioning guide pillar to go up locating plate subassembly, locating plate subassembly and lower locating plate subassembly down, the positioning guide pillar is located the position at four angles, go up locating plate subassembly and lower locating plate subassembly parallel mount, positioning assembly is located locating plate subassembly, down between the locating plate subassembly, at last locating plate subassembly, all be provided with corresponding mounting hole on the locating plate subassembly down, it adopts the pipe of framework to come into hand and increased four hole locating pieces as the strong point, positioning accuracy is higher, openly adopt the non-light tight mode of inclined hole, the dead angle that is difficult for piercing through laser has better penetrating effect, the luminousness is better, the welding is more firm, through this kind of fixed mode, whole framework welds more easily, the problem of omission when not welding exists.

Description

Welding spot downward moving stirring and mixing type grid welding clamp

Technical Field

The utility model belongs to the technical field of the welding, concretely relates to solder joint moves down stirs muddy type framework welding jig.

Background

During the operation of a reactor in a nuclear power plant, the performance of nuclear fuel is an important factor affecting the safety and economy of the reactor. In the existing pressurized water reactor fuel assembly design, the fuel rods are generally clamped and suspended by a positioning grid. The grid is formed by welding a plurality of small grid cells, the internationally-existing end cross spot welding is innovatively changed into welding in the grid cell by a design institute, the welding difficulty is greatly increased, high requirements are provided for the design and the manufacture of welding fixtures, the required precision requirements on the positions of all grid cells and the space between adjacent grid cells are high after welding, and meanwhile, due to the difference of specifications of the grid cells at different positions (such as grid cells at the inner position and the edge position), the grid cells are difficult to clamp by adopting a common fixture. Therefore, a new welding jig is necessary to clamp the cells.

The inventor finds that the prior arts have at least the following technical problems in the practical use process:

the angle requirement of the stirring type grid welding is high, the common fixture is difficult to clamp, the laser trafficability is reduced, and the welding is inconvenient.

Disclosure of Invention

For overcoming the existence not enough, the utility model discloses an inventor is through long-term exploration attempt and experimental and the effort many times, constantly reform transform and the innovation, the stirring type framework welding jig that stirs that the solder joint moves down has been proposed, it adopts and carries out the accurate positioning to the pipe of framework, the framework is by locating component accurate positioning, every unit has increased four hole locating pieces as the strong point, carry out the accurate positioning to the pipe, adopt the non-light tight mode of inclined hole openly, the dead angle that is difficult for piercing through to laser has better penetrating effect, the luminousness is better, it is more firm to weld, through this kind of fixed mode, whole framework welds more easily, there is not the problem of the omission when welding. Increase four location guide pillars in the anchor clamps side, play the limiting displacement to top board and lower locating plate, guarantee the detection that the assembly of being convenient for targets in place when anchor clamps assemble during the assembly, carry out the fretwork setting in the position of the accurate location of top base plate, guarantee that laser is good and pass through the effect, the bolt adopts detachable construction, and the welding waste material of being convenient for bonds and can change fast on the bolt.

In order to realize the purpose, the utility model adopts the technical scheme that: provides a welding spot downward moving stirring type grillwork welding clamp. The positioning structure comprises an upper positioning plate assembly, a lower positioning plate assembly, positioning assemblies and positioning guide pillars, wherein the upper positioning plate assembly and the lower positioning plate assembly are connected together through the positioning guide pillars, the upper positioning plate assembly and the lower positioning plate assembly are square, the positioning guide pillars are located at the positions of four corners, the upper positioning plate assembly and the lower positioning plate assembly are installed in parallel, the positioning assemblies are located between the upper positioning plate assembly and the lower positioning plate assembly, and corresponding mounting holes are formed in the upper positioning plate assembly and the lower positioning plate assembly.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the upper positioning plate assembly comprises an upper fixing seat, an upper positioning plate and an upper outer pushing plate, the upper positioning plate is installed on the upper fixing seat, the upper positioning plate is square, the upper outer pushing plate is installed in parallel around the edge of the upper positioning plate, and the upper outer pushing plate is installed on the upper fixing seat.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the lower positioning plate component comprises a lining plate, a lower positioning plate and a lower outer pushing plate, the lower positioning plate is arranged below the lining plate and is square, the lower outer pushing plate is arranged in parallel around the edge of the lower positioning plate, and the lower outer pushing plate is arranged on the lining plate.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the upper fixing seat/lining plate is hollowed in the middle area of the upper positioning plate/lower positioning plate, and four angular positions of the upper positioning plate/lower positioning plate are fixed on the upper fixing seat/lining plate by screws.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the upper outer push plate/the lower outer push plate is provided with an annular groove at the position close to the left and right edges, an eccentric wheel with a handle is installed in the annular groove, and the eccentric wheel is used for pressing the outer push plate towards the upper positioning plate/the lower positioning plate.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the upper positioning plate is divided into four plates by transverse and longitudinal symmetrical lines, and each plate is provided with a laser through hole which is inclined towards the middle of the upper positioning plate.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: the lower positioning plate is provided with mounting holes for mounting the positioning assemblies, the positions and the number of the holes correspond to the shape of the mixing grillwork to be welded, and the positioning assemblies penetrate through the guide pipes of the mixing grillwork to be welded.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: four hole locating pieces are uniformly distributed around the mounting hole, the four hole locating pieces are arranged transversely or vertically, and the hole locating pieces are long-strip teeth.

According to the utility model a solder joint moves down stirs type grillwork welding jig that mixes, its further preferred technical scheme is: the locating component comprises a sleeve pin cap, a pin sleeve and a sleeve pin, the sleeve pin nut is arranged below, the pin sleeve is sleeved at the middle position of the sleeve pin, four straight-line groove screws penetrating through the pin sleeve are arranged in the middle of the pin sleeve, four straight-line groove screws are evenly arranged at included angles and are perpendicular to the sleeve pin, the front end of each straight-line groove screw is in contact with the sleeve pin, the sleeve pin cap is arranged on the nut and the lower portion of the pin sleeve, the upper end of the sleeve pin cap is shorter than the straight-line groove screws, the grooves of the straight-line groove screws are vertically downwards arranged and are matched with hole locating blocks to achieve installation of the lower locating plate, and the upper end of the sleeve pin is located in a mounting hole corresponding to the upper locating plate.

According to a stir type framework welding jig that mixes that solder joint moved down, its further preferred technical scheme is: corner pins are arranged at four corners of the lower positioning plate.

Compared with the prior art, the technical scheme of the utility model have following advantage beneficial effect:

1. the side push plate adopts an eccentric wheel structure, and can be quickly moved, positioned and pressed in a contact manner.

2. The guide pipe of the grillwork is accurately positioned by the aid of the guide pipe positioning device, the grillwork is accurately positioned by the positioning assembly, four hole positioning blocks are additionally arranged on each unit to serve as supporting points, the guide pipe is accurately positioned, an oblique hole light-transmitting mode is adopted on the front side, a better penetrating effect is realized on dead corners which are not easy to penetrate laser, light transmittance is better, welding is firmer, and the whole grillwork is easier to weld through the fixing mode without the problem of omission during welding.

3. Increase four location guide pillars in the anchor clamps side, play the limiting displacement to top board and locating plate down, guarantee the detection that anchor clamps are convenient for assemble when the assembly targets in place, carry out the fretwork setting in the position of the accurate location of top plate, guarantee that laser is good through the effect, the bolt adopts detachable construction, and the welding waste material of being convenient for bonds and can change fast on the bolt.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of the welding fixture for a stirring grid with downward moving welding spots.

Fig. 2 is a top view of the stirring type grid welding jig with downward moving welding spots.

Fig. 3 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 2.

Fig. 4 is a schematic structural diagram of the upper positioning plate assembly of the stirring-mixing-type grid welding fixture with downward moving welding spots.

Fig. 5 is a bottom view of the upper positioning plate assembly of the stirring-mixing-type grid welding jig with downward moving welding spots.

Fig. 6 is a schematic structural view of the lower positioning plate assembly of the stirring-mixing-type grid welding jig of the utility model with downward movement of the welding spots.

Fig. 7 is a top view of the lower positioning plate assembly of the stirring-mixing-type grid welding jig with downward movement of the welding spots.

Fig. 8 is a bottom view of the lower positioning plate assembly of the stirring-mixing-type grid welding jig of the present invention, in which the welding spots move downward.

Fig. 9 is a schematic structural view of the lower outward pushing plate of the stirring-mixing-type grid welding fixture with downward movement of the welding spots.

Fig. 10 is a schematic structural diagram of a positioning assembly of the stirring-mixing-type grid welding jig of the present invention with downward moving welding spots.

Fig. 11 is a sectional view of fig. 10.

Fig. 12 is a schematic structural view of a mixing type lattice.

The labels in the figure are respectively: 1. the laser positioning device comprises an upper positioning plate assembly 101, an upper fixed seat 102, an upper positioning plate 1021, a laser through hole 103, an upper outer push plate 2, a lower positioning plate assembly 201, a lining plate 202, a lower positioning plate 203, a lower outer push plate 204, a hole positioning block 3, a positioning guide column 4, a positioning assembly 401, a sleeve pin cap 402, a pin sleeve 403, a sleeve pin 404, a slotted screw 5, an eccentric wheel 501, a handle 502, a slotted groove 6, a mixing type grid 601, a guide pipe 7 and a corner pin.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

The embodiment is as follows:

as shown in fig. 1 to 12, a welding point downward-moving mixing type grid welding jig. It includes locating plate 102 subassembly 1, lower locating plate 202 subassembly 2, locating component 4, positioning guide pillar 3, locating plate 102 subassembly 1, lower locating plate 202 subassembly 2 subassembly link together through positioning guide pillar 3, locating plate 102 subassembly 1 is square with lower locating plate 202 subassembly 2, positioning guide pillar 3 is located the position at four angles, locating plate 102 subassembly 1 and lower locating plate 202 subassembly 2 parallel mount, positioning component 4 is located locating plate 102 subassembly 1, between lower locating plate 202 subassembly 2 subassembly, at locating plate 102 subassembly 1, all be provided with corresponding mounting hole on lower locating plate 202 subassembly 2 subassembly, the position of mounting hole corresponds from top to bottom and is used for installing positioning component 4, positioning guide pillar 3 plays the location. Carrying and connecting functions.

The upper positioning plate 102 assembly 1 comprises an upper fixing seat 101, an upper positioning plate 102 and an upper outer push plate 103, wherein the upper positioning plate 102 is installed on the upper fixing seat 101, the upper positioning plate 102 is square, the upper outer push plate 103 is installed around the edge of the upper positioning plate 102 in parallel, and the upper outer push plate 103 is installed on the upper fixing seat 101.

The lower positioning plate 202 assembly 2 comprises a lining plate 201, a lower positioning plate 202 and a lower outer pushing plate 203, wherein the lower positioning plate 202 is installed below the lining plate 201, the lower positioning plate 202 is square, the lower outer pushing plate 203 is installed in parallel around the edge of the lower positioning plate 202, and the lower outer pushing plate 203 is installed on the lining plate 201.

The upper fixing seat 101/lining plate 201 is hollow in the middle area of the upper positioning plate 102/lower positioning plate 202, four corners of the upper positioning plate 102/lower positioning plate 202 are fixed on the upper fixing seat 101/lining plate 201 by screws, the middle area is avoided for convenience of processing, the angle and the direction during welding are prevented from being influenced, heat dissipation during welding is facilitated, welding slag drops and the like.

The upper outer push plate 103/the lower outer push plate 203 are provided with annular grooves 502 at positions close to the edges at the left and right sides, eccentric wheels 5 with handles 501 are installed in the annular grooves 502, the eccentric wheels 5 are used for pressing the outer push plates in the directions of the upper positioning plate 102/the lower positioning plate 202, the upper outer push plate 103 and the lower outer push plate 203 are used for fixing the edges of the mixing type grillwork 6, and the eccentric wheels 5 can be used for quick fixing, so that the use is convenient and quick.

The upper locating plate 102 is divided into four plates by the symmetry line of the transverse direction and the longitudinal direction, each plate is provided with a laser through hole 1021 inclined towards the middle of the upper locating plate 102, the four plates are of consistent structures and can be regarded as rotationally distributed, the laser through holes 1021 are used for welding when laser enters at the inclined angle during welding, and the angle and the size of the laser through holes 1021 are specifically designed according to the mixing type grillwork 6 to be welded.

The lower positioning plate 202 is provided with mounting holes for mounting the positioning component 4, the positions and the number of the holes correspond to the shapes of the mixing type grillwork 6 to be welded, the positioning component 4 penetrates through the guide pipe 601 of the mixing type grillwork 6 to be welded, positioning is realized by tightly fitting the guide pipe 601, the positioning component 4 comprises a sleeve pin cap 401, a pin sleeve 402 and a sleeve pin 403, a nut of the sleeve pin 403 is arranged below, the pin sleeve 402 is sleeved at the middle position of the sleeve pin 403, four straight-line-groove screws 404 penetrating through the pin sleeve 402 are arranged in the middle of the pin sleeve 402, the four straight-line-groove screws 404 are uniformly arranged at included angles and are perpendicular to the sleeve pin 403, the front end of each straight-line-groove screw 404 is in contact with the sleeve pin 403, the sleeve pin cap 401 is arranged below the nut and the pin sleeve 402, the upper end of the sleeve pin cap 401 is shorter than the straight-line-groove screws 404, the grooves of the straight-groove screws 404 are vertically arranged downwards and are matched with the hole positioning blocks 204 to realize mounting of the lower positioning block 202, the upper end of the sleeve 403 is positioned in the mounting holes corresponding to the upper positioning plate 102, and the positioning plate is realized by adjusting the straight-line-groove screws 404, and the positioning plate 204 and the positioning plate.

Four hole locating pieces 204 are evenly distributed around the mounting hole, the four hole locating pieces 204 are transversely or vertically arranged, the hole locating pieces 204 are long-strip teeth, the hole locating pieces 204 are aligned with the grooves of the straight-line groove screws 404, therefore, the positions of the locating components 4 are limited, the locating components 4 are arranged in the whole clamp, and the number and the positions of the locating components 4 are arranged according to actual requirements. The hole positioning blocks are also used for receiving the guide pipes of the mixing type grillwork.

The four corners of the lower positioning plate 202 are provided with angle pins 7, and the angle pins 7 are used for guiding and resisting abrasion when the upper positioning plate 102 assembly 1 and the lower positioning plate 202 assembly 2 are folded, so that the folding precision of the upper positioning plate 102 assembly 1 and the lower positioning plate 202 assembly 2 is ensured.

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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The welding spot downward moving stirring type grid welding fixture is characterized by comprising an upper positioning plate assembly, a lower positioning plate assembly, positioning assemblies and positioning guide pillars, wherein the upper positioning plate assembly and the lower positioning plate assembly are connected together through the positioning guide pillars, the upper positioning plate assembly and the lower positioning plate assembly are square, the positioning guide pillars are located at the positions of four corners, the upper positioning plate assembly and the lower positioning plate assembly are installed in parallel, the positioning assemblies are located between the upper positioning plate assembly and the lower positioning plate assembly, corresponding mounting holes are formed in the upper positioning plate assembly and the lower positioning plate assembly, the upper positioning plate of the upper positioning plate assembly is divided into four plates by transverse and longitudinal symmetrical lines, and a laser through hole inclined towards the middle of the upper positioning plate is formed in each plate.

2. The welding spot downward stirring type grillwork welding jig of claim 1, wherein the upper positioning plate assembly comprises an upper fixing seat, an upper positioning plate and an upper outer pushing plate, the upper positioning plate is mounted on the upper fixing seat, the upper positioning plate is square, the upper outer pushing plate is mounted around the edge of the upper positioning plate in parallel, and the upper outer pushing plate is mounted on the upper fixing seat.

3. The stirring type grid welding jig for downward movement of welding spots according to claim 2, wherein the lower positioning plate assembly comprises a lining plate, a lower positioning plate and a lower outer pushing plate, the lower positioning plate is mounted under the lining plate, the lower positioning plate is square, the lower outer pushing plate is mounted in parallel around the edge of the lower positioning plate, and the lower outer pushing plate is mounted on the lining plate.

4. The welding spot downward-moving mixing type grid welding jig according to claim 3, wherein the upper fixing seat/lining plate is hollowed out in the middle area of the upper positioning plate/lower positioning plate, and four angular positions of the upper positioning plate/lower positioning plate are fixed to the upper fixing seat/lining plate by screws.

5. The welding spot downward stirring type grid welding jig as claimed in claim 3, wherein the upper/lower push plate has annular grooves formed at the left and right sides near the edges, and eccentric wheels with handles are installed in the annular grooves, and the eccentric wheels are used for pressing the push plates toward the upper/lower positioning plates.

6. The welding jig for the mixing type grillwork with the welding spot moving downwards of claim 3, wherein the lower positioning plate is provided with mounting holes for mounting the positioning components, the positions and the number of the holes correspond to the shape of the mixing type grillwork to be welded, and the positioning components pass through the guide pipes of the mixing type grillwork to be welded.

7. The stirring type grid welding fixture with the downward moving welding spots as claimed in claim 3, wherein four hole positioning blocks are uniformly distributed around the installation hole, the four hole positioning blocks are arranged horizontally or vertically, and the hole positioning blocks are long teeth.

8. The welding spot downward-moving mixing type grillage welding fixture as claimed in claim 1, wherein the positioning assembly comprises a sleeve pin cap, a pin sleeve and a sleeve pin, the sleeve pin cap is arranged below the sleeve pin, the pin sleeve is sleeved at the middle position of the sleeve pin, four straight-line groove screws penetrating through the pin sleeve are arranged in the middle of the pin sleeve, the four straight-line groove screws are arranged at uniform included angles and perpendicular to the sleeve pin, the front end of each straight-line groove screw is in contact with the sleeve pin, the sleeve pin cap is arranged below the nut and the pin sleeve, the upper end of the sleeve pin cap is shorter than the straight-line groove screws, grooves of the straight-line groove screws are vertically arranged downward and matched with hole positioning blocks to realize installation on the lower positioning plate, and the upper ends of the sleeve pins are located in corresponding installation holes of the upper positioning plate.

9. The welding jig for the welding spot downward stirring type grillwork of claim 3, wherein corner pins are provided at four corners of the lower positioning plate.