CN218136003U - Stand welding structure and assembly welding positioning tool - Google Patents
Stand welding structure and assembly welding positioning tool Download PDFInfo
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- CN218136003U CN218136003U CN202222177286.3U CN202222177286U CN218136003U CN 218136003 U CN218136003 U CN 218136003U CN 202222177286 U CN202222177286 U CN 202222177286U CN 218136003 U CN218136003 U CN 218136003U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a stand welding structure body and assembly welding location frock, including forked plate (1) and stand (2), stand (2) are four, and round hole (1-1) have been seted up at forked plate (1) center, and draw-in groove (1-2) have been seted up respectively in forked plate (1) four corners, and four stand (2) upsides weld respectively in four draw-in grooves (1-2) of forked plate (1) to the axial of four stand (2) is perpendicular with forked plate (1) place plane, vertical column (2) axial center has seted up deep cylinder through-hole (2-1).
Description
Technical Field
The utility model belongs to the technical field of the welding structure body, concretely relates to stand welding structure body and assembly welding positioning tool.
Background
The handling machine equipment is one of key equipment of fuel operation and storage systems of a nuclear power plant, and as the whole equipment finally completes the tasks of grabbing and releasing nuclear fuel assemblies by operating the grab, related technical performance indexes are developed around the grab, so that the precision requirement on the grab is very high.
The wedge block self-locking type gripping apparatus is a gripping apparatus with a brand new structure form, an upright post welding structure body is an installation carrier of a whole gripping apparatus component, and the existing upright post welding structure body is special in structure and cannot be well matched with other components.
In addition, when the existing upright post welding structure is welded, as no rigid fixation and mutual restraint exist, the integral rigidity is weak, irregular deformation (adduction, abduction or distortion) is easily caused in the welding process, and the welded integral dimension is seriously out of tolerance and scrapped; in addition, due to the common influence of the rigidity and the welding stress, machining deformation occurs during machining, and the original machining precision is lost.
Therefore, a novel upright welding structure and an assembly welding positioning tool of the upright welding structure are required to be developed so as to ensure the dimensional stability of the whole component and the accuracy of the final machining precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a stand welding structure and assembly welding positioning tool.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides an upright welding structure, includes forked plate and stand, and the stand is four, and the round hole has been seted up at forked plate center, and the draw-in groove has been seted up respectively in forked plate four corners, and four stand upsides weld respectively in four draw-in grooves of forked plate to the axial of four stands is perpendicular with forked plate place plane, the vertical column axial center has seted up the depth cylinder through-hole.
Preferably, the fork-shaped plate is of an X-shaped structure which is distributed in a special-shaped symmetrical mode, an included angle between two adjacent clamping grooves of the fork-shaped plate is 90 degrees, a protrusion is arranged between two adjacent clamping grooves of the fork-shaped plate, a circular hole is formed in the fork-shaped plate between each clamping groove and the circular hole, and the clamping grooves are right-angled clamping grooves.
Preferably, the cross section of stand is the cave dwelling type cross section of trilateral straight flange one side semicircle, and the cross section center is the depth cylinder through-hole, the trilateral straight flange and the draw-in groove looks adaptation of stand, the trilateral straight flange card of stand establish and weld in the draw-in groove, the step hole has been seted up respectively to depth cylinder through-hole upside and downside.
Preferably, an assembly welding positioning tool for a stand welding structure body comprises a tool clamp plate, a clamping sleeve and screws, wherein a process hole is formed in the center of the tool clamp plate, the diameter of the process hole is the same as the diameter of a circular hole of a forked plate, clamp clamping grooves are formed in four corners of the tool clamp plate, the lower side of the stand is installed in the clamp clamping grooves, the clamping sleeves are four groups through the screws, the clamping sleeves are connected with the clamp clamping grooves through the screws, and the lower side of the stand is fixed in the clamp clamping grooves.
Preferably, the clamp clamping groove is a right-angle clamping groove, a semicircular groove is formed in the center of the clamping sleeve, and a space formed by the relative connection of the right-angle clamping groove of the clamp clamping groove and the semicircular groove of the clamping sleeve is matched with the cross section of the upright post.
Compared with the prior art, the utility model has the advantages of:
(1) The utility model discloses a stand welding structure, including forked plate and stand, four stand upsides weld respectively in four draw-in grooves of forked plate, and the axial of four stands is perpendicular with forked plate place plane, the utility model discloses the round hole of stand welding structure is used for the control sleeve of gripping apparatus part to penetrate and move from top to bottom, and the arch is used for installing the voussoir, and the circular port is used for passing manual emergency operation pole, and the deep cylinder through-hole is used for installing three kinds of four slender pole pins that the function is different, installs the spring in the upper end step hole, and the cold charge copper sheathing of installation in the lower extreme step hole, the utility model discloses stand welding structure simple structure, it is perfect with other subassemblies cooperation of gripping apparatus part;
(2) The utility model discloses an assembly welding positioning tool of a stand column welding structure body, the fixture clamping groove of the fixture clamping plate of the assembly welding positioning tool adopts the same positioning size as the fork-shaped plate clamping groove of the stand column welding structure body, and is matched with the clamping sleeve which has the same cambered surface as the semi-circle shape of the stand column to be clamped, so that the upper and lower references of the whole stand column welding structure body are unified, the omnibearing non-deformation of the stand column in the welding process can be ensured, the positioning is accurate, the assembly welding positioning tool is convenient to disassemble and assemble after the subsequent integral machine processing is finished;
(3) The utility model discloses stand welding structure fixes a position through the assembly welding positioning frock, eliminates stress through the processing technology, controls and prevents the deformation of stand welding structure, guarantees the dimensional stability of stand welding structure and the accuracy of final machining precision; the assembly welding positioning tool for the stand column welding structure is simple, reasonable and compact in design and easy to install and disassemble, the requirements of design drawings are guaranteed by the overall dimensional accuracy of various products through application of the assembly welding positioning tool to specific products, and the overall performance of loading and unloading machine equipment is directly improved.
Drawings
Fig. 1 is a schematic structural view of a stand welding structure according to the present invention;
FIG. 2 is a schematic cross-sectional view of an assembly welding positioning tool for a column welded structure of the present invention;
FIG. 3 is a schematic view of an assembly front view structure of a stand welding structure and an assembly welding positioning tool of the present invention;
fig. 4 is a schematic view of an assembly overlooking structure of a stand welding structure and an assembly welding positioning tool of the present invention;
fig. 5 isbase:Sub>A sectional view taken along the linebase:Sub>A-base:Sub>A of fig. 4 according to the present invention.
Description of the reference numerals:
1. a fork-shaped plate 2, a column 3, a fixture plate 4, a clamping sleeve 5 and a screw;
1-1 parts of round holes, 1-2 parts of clamping grooves, 1-3 parts of bulges, 1-4 parts of round holes;
2-1, 2-2, step holes;
3-1, a fabrication hole, 3-2 and a clamp slot;
4-1, semicircular groove.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the following embodiments:
it should be noted that the structures, ratios, sizes, etc. illustrated in the present specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships or adjustments of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.
Example 1
As shown in fig. 1, 3 and 4, the utility model discloses a stand welding structure, including fork shaped plate 1 and stand 2, stand 2 is four, and round hole 1-1 has been seted up at fork shaped plate 1 center, and draw-in groove 1-2 has been seted up respectively in fork shaped plate 1 four corners, and 2 upsides of four stands weld respectively in four draw-in grooves 1-2 of fork shaped plate 1 to the axial of four stands 2 is perpendicular with fork shaped plate 1 place plane, 2 axial center of stand has seted up depth cylinder through-hole 2-1.
Example 2
As shown in fig. 1, 3 and 4, the forked plate 1 is in an X-shaped structure with irregularly-shaped symmetrical distribution, an included angle between two adjacent clamping grooves 1-2 of the forked plate 1 is 90 degrees, a protrusion 1-3 is arranged between two adjacent clamping grooves 1-2 of the forked plate 1, a circular hole 1-4 is formed in the forked plate 1 between the clamping groove 1-2 and the circular hole 1-1, and the clamping groove 1-2 is a right-angle clamping groove.
The side surface of the 1-3 part of the bulge is used for installing a wedge block (a product part), and the engagement and the release of the grab hook of the grab part are positioned and self-locked by the wedge block.
The circular hole 1-4 is used for passing through a manual emergency operation rod (a product part).
The fork-shaped plate 1 is integrally a stainless steel plate with the thickness of 18.8mm, the center of the plate surface is a round hole, the periphery of the plate surface is of an X-shaped structure which is distributed in a special-shaped symmetrical mode, and four 45-degree angle directions extend outwards to form right-angle clamping grooves.
The round hole 1-1 is used for a control sleeve (product piece) of the gripping apparatus part to penetrate into the round hole to move up and down when the upright post welding structure body is assembled.
As shown in fig. 1, 3, 4 and 5, the cross section of the upright column 2 is a cave-shaped cross section with three straight sides and one semicircular surface, the center of the cross section is a deep cylindrical through hole 2-1, the three straight sides of the upright column 2 are matched with the clamping grooves 1-2, the three straight sides of the upright column 2 are clamped and welded in the clamping grooves 1-2, and the upper side and the lower side of the deep cylindrical through hole 2-1 are respectively provided with a step hole 2-2.
The upright post 2 is in a cave shape with three straight sides and one semicircular surface, the center of the section is a deep cylindrical cavity (through hole), and the wall thickness of the thinnest part of the hole wall is 2.75mm.
The deep cylindrical through hole 2-1 is used for mounting three kinds of four elongated bar pins (product pieces) different in function.
Example 3
As shown in fig. 2, an assembly welding positioning tool for an upright post welding structure comprises a tool clamp plate 3, a clamping sleeve 4 and screws 5, wherein a process hole 3-1 is formed in the center of the tool clamp plate 3, the diameter of the process hole 3-1 is the same as that of a round hole 1-1 of a fork-shaped plate 1 of the upright post welding structure, clamp slots 3-2 are formed in four corners of the tool clamp plate 3, the lower side of an upright post 2 is installed in the clamp slots 3-2, and the clamping sleeve 4 is connected with the clamp slots 3-2 through the screws 5 to fix the lower side of the upright post 2 in the clamp slots 3-2.
The tool clamp plate 3 is a square plate with a phi 120 process hole in the center, chamfer planes and threaded holes are arranged at four 45-degree angles, and a clamp clamping groove 3-2 is formed.
The diameter of the process hole 3-1 is phi 120, and the clamp clamping grooves 3-2 at four 45-degree azimuth four corners of the fixture plate 3 are the same as the clamping grooves 1-2 of the fork-shaped plate 1 of the upright welding structure body in position and size.
The process hole 3-1 is used for reducing weight on one hand, and is used for integral alignment in the subsequent processing process on the other hand, and a cylindrical alignment block penetrates through the process hole 3-1 and the round hole 1-1.
As shown in fig. 2, the clamp slot 3-2 is a right-angle slot, a semicircular groove 4-1 is formed in the center of the ferrule 4, and a space formed by the relative connection of the right-angle slot of the clamp slot 3-2 and the semicircular groove 4-1 of the ferrule 4 is matched with the cross section of the upright post 2.
The cutting sleeve 4 is provided with an arched boss section.
The screw 5 is an M6 screw and is a GB/T5783-2016 standard screw.
Example 4
As shown in fig. 3 and 4, a method for processing a welded structure of a pillar includes the steps of:
step 1: designing and manufacturing an assembly welding positioning tool of the upright welding structure aiming at the upright welding structure;
step 2: sleeving an assembly welding positioning tool of the upright welding structure body into the lower parts of the uprights 2, adjusting the postures, ensuring that the uprights 2 are perpendicular to the tool clamp plate 3, then rigidly fixing the tool clamp plate 3 by using a clamping sleeve 4, and screwing a screw 5;
and step 3: sleeving a fork-shaped plate 1 into the upper parts of the stand columns 2, inserting a cylindrical leveling block into circular holes 1-1 of the fork-shaped plate 1 and process holes 3-1 of a tool clamp plate 3 to ensure that the fork-shaped plate 1 is perpendicular to the stand columns 2, welding the fork-shaped plate 1 and the stand columns 2, and reducing welding deformation by adopting a left-right staggered and symmetrical welding process method in the welding process;
and 4, step 4: performing low-temperature stress relief heat treatment, namely placing the whole upright welding structure together with an assembly welding positioning tool of the upright welding structure on a platform special for a trolley type heat treatment electric furnace, heating to 320 +/-20 ℃, preserving heat for 120 to 150min, and then performing air cooling; through integral low-temperature stress relief heat treatment, the deformation of the workpiece is reduced, and 80-90% of welding stress can be relieved;
and 5: vibration aging treatment: performing vibration impact on a welding seam region, and utilizing variable load stress generated by stable resonance to enable the welding seam region to generate plastic deformation; vibration impact is carried out on the welding seam area, and the welding seam area generates plastic deformation by utilizing the variable load stress generated by stable resonance, so that the aim of eliminating 10% of residual stress is fulfilled;
step 6: after the vibration aging is finished, the whole upright welding structure body and the assembly welding positioning tool with the upright welding structure body are placed on a platform in a static mode, and natural aging is carried out;
and 7: starting integral machining after the natural aging is finished, and integrally and precisely machining the upper end surface and the lower end surface of each upright post 2 and the deep cylindrical through hole 2-1 by adopting a numerical control machining center; in the whole processing process, the processing deformation state is monitored in real time after the rough processing and the fine processing are carried out, and the cutting amount and the cutting speed are adjusted on the basis of the monitoring deformation state, so that the thermal deformation of a processing surface is reduced;
and 8: and (5) detecting all the dimensions of the machined stand column welding structure body by utilizing numerical control coordinate positioning of a numerical control machining center, and issuing a detection report.
Preferably, the heating speed in the step 4 is less than or equal to 220 ℃/h, and the heating temperature is 320 +/-20 ℃.
Preferably, in the step 5, the vibration frequency is 4500r/min, and the vibration acceleration is 20.0-40.0 m/s 2 。
Preferably, the natural aging time in the step 6 is 24 hours.
Example 5
Preferably, the method for using the column welding structure is characterized in that the column welding structure is an installation carrier of a gripping apparatus component, when in use, a spring is installed in a step hole 2-2 at the upper end of four columns 2 of the column welding structure, a cold-packed copper bush is installed in a step hole 2-2 at the lower end, a guide pin, a positioning pin and a supporting pin longitudinally penetrate into a deep cylindrical through hole 2-1 from the lower end, the head parts of the guide pin, the positioning pin and the supporting pin are connected with an upper flange in a positioning mode, a circular hole 1-1 is used for penetrating a control sleeve of the gripping apparatus component and moving up and down, a protrusion 1-3 is used for installing a wedge block, the engagement and release of a gripping apparatus gripping hook are self-locked by means of positioning of the wedge block, and a circular hole 1-4 is used for penetrating through a manual emergency operating rod.
The two guide pins are arranged in a diagonal manner and used for guiding the positioning of the gripping apparatus and the fuel assembly; one positioning pin is used for preventing the gripping apparatus from being positioned on the fuel assembly incorrectly and ensuring the correct positioning direction; one of the support pins supports the balance of the gripper and the fuel assembly.
The whole gripper component consists of an upper flange, a stand column welding structure body, a U-shaped block, a wedge block, a gripper hook, a guide pin, a positioning pin, a supporting pin and a control sleeve, wherein the upper flange and the stand column welding structure body are main mounting carriers. When the upper flange is not contacted with the upright post welding structure body, the spring bounces to insert the wedge block into a releasing/meshing groove of the grapple, and the grapple is in a non-grabbing/grabbing state; when the upper flange is contacted with the upright post welding structure body, the spring is compressed, the wedge block is separated from the 'release'/'engagement' groove of the grab hook, and the grab is in a self-locking opening state.
The operation process of the gripper component comprises the following steps:
(1) The gripping apparatus is in a release state, is in place on the fuel assembly or the temporary supporting structure, and the upper flange moves downwards to be in contact with the upright post welding structure body, so that the self-locking state of the gripping hook is released.
(2) And confirming that the self-locking function of the gripper is released, pressing a gripper engagement button, and changing the gripper hook from a release state to an engagement state.
(3) Lifting the gripping apparatus to separate the upper flange from the upright post welding structure body to complete self-locking of the gripping hook, and continuing to lift the gripping apparatus to enable the gripping apparatus to drive the fuel assembly to ascend to complete gripping operation.
(4) The gripping apparatus is in an engaged state and suspends the fuel assembly; and placing the fuel assembly at a position where the fuel assembly is positioned, and moving the upper flange downwards to be in contact with the upright post welding structure body to release the self-locking state of the grapple.
(5) And confirming that the self-locking function of the gripper is released, and pressing a gripper release button to change the gripper from an engaged state to a released state.
(6) Lifting the gripping apparatus to separate the upper flange from the upright post welding structure body to complete self-locking of the gripping hook, continuing to lift the gripping apparatus, and completing release of gripping.
Example 6
Utilize processing method processing stand welded structure body, concrete step is as follows:
step 1: the assembling and welding positioning tool for the upright post welding structure is designed and manufactured aiming at the upright post welding structure, the upright post welding structure comprises a forked plate 1 and an upright post 2, the assembling and welding positioning tool comprises a tool clamp plate 3, a clamping sleeve 4 and a screw 5, the size of a round hole 1-1 of the forked plate 1 is the same as that of a technical hole 3-1 of the tool clamp plate 3, and the positions of four clamping grooves 1-2 of the forked plate 1 correspond to the positions of four clamp clamping grooves 3-2 of the tool clamp plate 3;
and 2, step: sleeving an assembly welding positioning tool of the stand column welding structure body into the lower parts of the stand columns 2, adjusting the posture, ensuring that each stand column 2 is perpendicular to the tool clamp plate 3, then rigidly fixing the tool clamp plate 3 by using a clamping sleeve 4, and screwing a screw 5;
and 3, step 3: sleeving the fork-shaped plate 1 on the upper parts of the stand columns 2, inserting the cylindrical leveling block into circular holes 1-1 of the fork-shaped plate 1 and process holes 3-1 of the tooling fixture plate 3 to ensure that the fork-shaped plate 1 is perpendicular to each stand column 2, welding the fork-shaped plate 1 and the stand columns 2, and reducing welding deformation by adopting a left-right staggered and symmetrical welding process method in the welding process;
and 4, step 4: performing low-temperature stress relief heat treatment, namely putting the whole upright welding structure together with an assembly welding positioning tool of the upright welding structure on a platform special for a trolley type heat treatment electric furnace, heating to 320 ℃, preserving heat for 120min, and then performing air cooling; through integral low-temperature stress relief heat treatment, the deformation of the workpiece is reduced, and 80-90% of welding stress can be relieved;
and 5: vibration aging treatment: performing vibration impact on a welding seam region, and utilizing variable load stress generated by stable resonance to enable the welding seam region to generate plastic deformation; performing vibration impact on a welding seam area, and utilizing variable load stress generated by stable resonance to enable the welding seam area to generate plastic deformation so as to achieve the purpose of eliminating 10% of residual stress;
step 6: after the vibration aging is finished, the whole upright welding structure body and the assembly welding positioning tool with the upright welding structure body are placed on a platform in a static mode, natural aging is carried out, and a small amount of stress is left after the natural aging is carried out;
and 7: starting integral machining after the natural aging is finished, and integrally and precisely machining the upper end surface and the lower end surface of each upright post 2 and the deep cylindrical through hole 2-1 by adopting a numerical control machining center; the whole machining process adopts the steps of firstly roughing and then finishing, monitoring the machining deformation state in real time, adjusting the chip cutting quantity and the cutting speed on the basis of the monitoring deformation state, and reducing the thermal deformation of a machined surface;
and 8: and (5) detecting all the dimensions of the machined stand column welding structure body by utilizing numerical control coordinate positioning of a numerical control machining center, and issuing a detection report.
The post welding mechanism body is welded and then the stress detection data change is processed as follows:
because the stress values are different due to different detection positions on the workpiece, only one detection range value is given.
The residual stress is 180 to 230MPa after welding and before heat treatment;
the residual stress after heat treatment is 30 to 50MPa;
the residual stress after the vibration aging is 20 to 25MPa.
The utility model discloses a theory of operation as follows:
as shown in fig. 1 to 4, the utility model discloses an upright welding structure and an assembly welding positioning tool, the upright welding structure comprises a fork-shaped plate 1 and upright posts 2, a round hole 1-1 is arranged in the center of the fork-shaped plate 1, clamping grooves 1-2 are respectively arranged at four corners of the fork-shaped plate 1, the upper sides of the four upright posts 2 are respectively welded in the four clamping grooves 1-2 of the fork-shaped plate 1, the axial directions of the four upright posts 2 are vertical to the plane of the fork-shaped plate 1, and a longitudinal deep cylindrical through hole 2-1 is arranged in the axial center of each upright post 2; the assembly welding positioning tool comprises a tool clamp plate 3, a clamping sleeve 4 and screws 5, wherein the center of the tool clamp plate 3 is provided with a fabrication hole 3-1, the diameter of the fabrication hole 3-1 is the same as that of a round hole 1-1, four corners of the tool clamp plate 3 are provided with clamp clamping grooves 3-2, the lower sides of four upright posts 2 are installed in the clamp clamping grooves 3-2 during welding, the clamping sleeve 4 is connected with the clamp clamping grooves 3-2 through the screws 5, the lower sides of the upright posts 2 are fixed in the clamp clamping grooves 3-2, the four clamping grooves 1-2 of the forked plate 1 are clamped with the four upright posts 2 after the four upright posts 2 are fixed, a cylindrical leveling block is inserted into the round hole 1-1 and the fabrication hole 3-1 to ensure that the forked plate 1 is perpendicular to the four upright posts 2, then the forked plate 1 is welded with the upright posts 2, and a left-right staggered symmetrical welding process method is adopted in the welding process to reduce welding deformation, so that a welded upright post welding structure can be perfectly matched with other assemblies of a gripping tool component.
The utility model discloses a stand welding structure, including forked plate and stand, four stand upsides weld respectively in four draw-in grooves of forked plate to the axial of four stands is perpendicular with forked plate place plane, the utility model discloses the round hole of stand welding structure is used for the control sleeve of gripping apparatus part to penetrate and moves from top to bottom, and the arch is used for installing the voussoir, and the circular port is used for passing manual emergent action bars, and the deep cylinder through-hole is used for installing three kinds of four long and thin pole round pins of function difference, the downthehole spring of installing of upper end step, the downthehole cold charge copper sheathing of installation of lower extreme step, the utility model discloses stand welding structure simple structure, it is perfect with other subassembly cooperations of gripping apparatus part.
The utility model discloses a group welding positioning tool of stand welding structure, the fixture clamping groove of the frock clamp plate of group welding positioning tool has adopted the same positioning dimension with the fork shaped plate draw-in groove of stand welding structure, the cooperation is cramped with the same cutting ferrule that the semi-circular same cambered surface of stand is the same, make whole stand welding structure benchmark unified from top to bottom, both can ensure the all-round indeformable at welding process in-process stand, it is accurate to ensure the location, also for follow-up whole machine tooling accomplishes the dismantlement of back stress release group welding positioning tool and provides convenience, the dismouting of being convenient for.
The utility model discloses stand welded structure body is through the technological measure of the different stress methods that disappears of cubic, through whole low temperature stress heat treatment that disappears, reduce work piece deflection, can eliminate 80% ~90% welding stress, carry out vibration impact to the welding seam region after that, utilize the variable load stress that stable resonance produced, make the welding seam region produce plastic deformation, reach the purpose of eliminating 10% residual stress, natural aging is carried out after that, inherent welding stress has basically been eliminated, the stability of whole size has been improved greatly, create good condition for stand welded structure body whole machining, the stability of size has been improved.
The utility model discloses stand welding structure adopts numerical control machining center, and coordinate positioning, precision finishing, the precision is accurate, and the steady quality has satisfied the high and tight characteristic requirement of stand welding structure size precision, and numerical control precision finishing, the steady and reliable of quality.
The utility model discloses stand welding structure fixes a position through the assembly welding positioning frock, eliminates stress through the processing technology, controls and prevents the deformation of stand welding structure, guarantees the dimensional stability of stand welding structure and the accuracy of final machining precision; the assembly welding positioning tool for the stand column welding structure is simple, reasonable and compact in design and easy to install and disassemble, and through being applied to specific project products, the requirements of design drawings are guaranteed by the overall dimensional precision, and the overall performance of loading and unloading machine equipment is directly improved.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (5)
1. A stand welding structure body which characterized in that: the novel fork type plate fixing device comprises four fork type plates (1) and four stand columns (2), wherein the center of each of the four stand columns (2) is provided with a round hole (1-1), four corners of each of the fork type plates (1) are respectively provided with a clamping groove (1-2), the upper sides of the four stand columns (2) are respectively welded in the four clamping grooves (1-2) of the fork type plates (1), the axial directions of the four stand columns (2) are perpendicular to the plane where the fork type plates (1) are located, and the axial centers of the stand columns (2) are provided with deep cylindrical through holes (2-1).
2. The pillar welded structure according to claim 1, wherein: the fork-shaped plate (1) is of an X-shaped structure which is distributed in a special-shaped symmetrical mode, an included angle between two adjacent clamping grooves (1-2) of the fork-shaped plate (1) is 90 degrees, a protrusion (1-3) is arranged between two adjacent clamping grooves (1-2) of the fork-shaped plate (1), a circular hole (1-4) is formed in the fork-shaped plate (1) between the clamping groove (1-2) and the circular hole (1-1), and the clamping groove (1-2) is a right-angle clamping groove.
3. The pillar welded structure according to claim 2, wherein: the cross section of the upright post (2) is a cave dwelling type cross section with semicircular three straight sides and one side, the center of the cross section is a deep cylinder through hole (2-1), the three straight sides of the upright post (2) are matched with the clamping grooves (1-2), the three straight sides of the upright post (2) are clamped and welded in the clamping grooves (1-2), and step holes (2-2) are respectively formed in the upper side and the lower side of the deep cylinder through hole (2-1).
4. The utility model provides an assembly welding positioning tool of stand welding structure body which characterized in that: the tooling clamp plate comprises a tooling clamp plate (3), clamping sleeves (4) and screws (5), wherein a process hole (3-1) is formed in the center of the tooling clamp plate (3), the diameter of the process hole (3-1) is the same as that of a round hole (1-1) of a fork-shaped plate (1) of an upright post welding structure body in claim 3, clamp clamping grooves (3-2) are formed in four corners of the tooling clamp plate (3), the lower side of an upright post (2) is installed in the clamp clamping grooves (3-2), the clamping sleeves (4) are four groups through the screws (5), the clamping sleeves (4) are connected with the clamp clamping grooves (3-2) through the screws (5), and the lower side of the upright post (2) is fixed in the clamp clamping grooves (3-2).
5. The assembly welding positioning tool of the stand welding structure according to claim 4, characterized in that: the clamp clamping groove (3-2) is a right-angle clamping groove, the center of the clamping sleeve (4) is provided with a semicircular groove (4-1), and a space formed by oppositely connecting the right-angle clamping groove of the clamp clamping groove (3-2) and the semicircular groove (4-1) of the clamping sleeve (4) is matched with the section of the upright post (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222177286.3U CN218136003U (en) | 2022-08-18 | 2022-08-18 | Stand welding structure and assembly welding positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222177286.3U CN218136003U (en) | 2022-08-18 | 2022-08-18 | Stand welding structure and assembly welding positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218136003U true CN218136003U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222177286.3U Active CN218136003U (en) | 2022-08-18 | 2022-08-18 | Stand welding structure and assembly welding positioning tool |
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| Country | Link |
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| CN (1) | CN218136003U (en) |
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2022
- 2022-08-18 CN CN202222177286.3U patent/CN218136003U/en active Active
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