CN214323288U - Modular elevation adjusting tool platform for steel box girder production and processing - Google Patents
Modular elevation adjusting tool platform for steel box girder production and processing Download PDFInfo
- Publication number
- CN214323288U CN214323288U CN202120326073.5U CN202120326073U CN214323288U CN 214323288 U CN214323288 U CN 214323288U CN 202120326073 U CN202120326073 U CN 202120326073U CN 214323288 U CN214323288 U CN 214323288U
- Authority
- CN
- China
- Prior art keywords
- elevation
- elevation adjusting
- box girder
- steel box
- adjusting tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model discloses a frock platform is adjusted with modularization elevation to steel case roof beam production and processing solves the technical problem that the troublesome with high costs of high adjustment of prior art steel case roof beam production time scale. The utility model comprises an elevation adjusting tool base, a guiding and positioning mechanism arranged in the elevation adjusting tool base, a fixing mechanism arranged on the elevation adjusting tool base, and an elevation adjusting lead screw arranged in the elevation adjusting tool base through the guiding and positioning mechanism and the fixing mechanism; the elevation adjusting lead screw is detachably connected with the guiding and positioning mechanism and the fixing mechanism respectively. The utility model has the advantages of simple structure and scientific and reasonable design, convenient to use, its commonality is strong, can effectively avoid setting up the elevation frock respectively for every component, can effectively improve steel box girder production efficiency, practices thrift steel box girder manufacturing cost, can also effectively reduce steel box girder manufacturing material consume simultaneously to green.
Description
Technical Field
The utility model belongs to the technical field of steel construction box beam installation elevation is adjusted, concretely relates to frock platform is adjusted with modularization elevation to steel case roof beam production and processing.
Background
In the production process of the daily steel structure box girder, due to factors such as project difference and actual engineering position of the box girder, the box girder has different elevations at different parts during final assembly and welding. Therefore, in the actual production process, required elevation tools need to be frequently built at different elevations according to the actual or detailed drawing, the built traditional elevation adjusting tool is unsatisfactory in adjusting precision and cannot meet the higher and higher precision requirement during installation of the steel structure box beam, and meanwhile, the traditional tool is poor in universality and is difficult to recycle, so that tool material waste is caused.
Consequently, design steel box roof beam production and processing and adjust frock platform with modularization elevation, this frock can be adjusted according to structure, the appearance of component, is applicable to most components, need not all set up the frock again at every turn, can not only improve steel box roof beam production efficiency, reduces the material loss, can also be convenient for batch production management simultaneously, becomes the technical problem that technical field technical staff awaits a urgent need to solve of the institute.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides a frock platform is adjusted with modularization elevation to steel box girder production and processing to at least, solve above-mentioned some technical problem.
In order to achieve the above object, the utility model adopts the following technical scheme:
the modular elevation adjusting tool platform for steel box girder production and processing comprises an elevation adjusting tool base, a guiding and positioning mechanism arranged in the elevation adjusting tool base, a fixing mechanism arranged on the elevation adjusting tool base, and an elevation adjusting lead screw arranged in the elevation adjusting tool base through the guiding and positioning mechanism and the fixing mechanism; the elevation adjusting lead screw is detachably connected with the guiding and positioning mechanism and the fixing mechanism respectively.
Further, the elevation adjusting tool base is of a cuboid structure with a hollow inner part.
Furthermore, guiding orientation mechanism is including locating the spout on the two inside walls of elevation regulation frock base inner chamber to and the guide orientation board of slip dress in the spout, set up the screw hole with elevation regulation lead screw looks adaptation on the guide orientation board, elevation regulation lead screw threaded connection is in the screw hole.
Further, the guide positioning plate is a rectangular steel plate.
Furthermore, the elevation adjusting screw rod and the guide positioning plate are vertically distributed, and the guide positioning plate is horizontally distributed.
Further, fixed establishment is including offering on elevation regulation frock pedestal roof and being rectangular shape strip-shaped through-hole to and threaded connection is in the fixation nut on elevation regulation lead screw, and elevation regulation lead screw stretches into in the elevation regulation frock pedestal and is connected with guiding orientation mechanism through strip-shaped through-hole.
Further, the elevation adjusting tool base is propped against the top wall of the elevation adjusting tool base through a fixing nut and is fixed with the elevation adjusting tool base.
Further, fixation nut is located elevation adjustment frock base roof top.
Further, the elevation adjustment lead screw has a plurality ofly to the elevation adjustment lead screw distributes side by side on the elevation adjustment frock base.
Further, elevation adjustment lead screw and elevation adjustment tool base center of gravity are located same vertical plane.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model has the advantages of simple structure and scientific and reasonable design, convenient to use, its commonality is strong, can effectively avoid setting up the elevation frock respectively for every component, can effectively improve steel box girder production efficiency, practices thrift steel box girder manufacturing cost, can also effectively reduce steel box girder manufacturing material consume simultaneously to green.
The utility model discloses mainly adjust frock base, guiding orientation mechanism, fixed establishment and elevation including the elevation and adjust the lead screw, the elevation is adjusted the frock base and is rectangular bodily form, its inside cavity, and the cavity inner chamber is rectangular bodily form. The guide positioning mechanism comprises a pair of mutually matched sliding grooves arranged on two inner side walls of the hollow inner cavity, the sliding grooves are horizontally distributed, a guide positioning plate made of a rectangular steel plate is horizontally embedded in the sliding grooves, the guide positioning plate can freely move horizontally in the sliding grooves, and threaded holes matched with the elevation adjusting screw rods are formed in the guide positioning plate. Fixing mechanism then adjusts a rectangular shape through-hole on the frock base roof including seting up in the elevation, and rectangular shape through-hole adjusts frock base length direction along the elevation and distributes, and its width is greater than the elevation and adjusts the lead screw external diameter, and fixing mechanism still includes and adjusts lead screw looks adaptation and threaded connection in the elevation and adjust the fixation nut on the lead screw with the elevation, and the fixation nut external diameter is greater than rectangular shape through-hole width. During the use, adjust the lead screw with the elevation and stretch into in the elevation regulation frock base and threaded connection to the threaded hole on the guide positioning board through rectangular shape through-hole, guide positioning board horizontal distribution this moment, the vertical distribution of elevation regulation lead screw, adjust the lead screw through the elevation and remove guide positioning board to the steel box roof beam and need elevation regulation structure under, adjust the elevation that the lead screw was adjusted to the elevation according to setting for the elevation that the structure was adjusted to steel box roof beam needs elevation again, the back is adjusted to the elevation regulation lead screw, the fixation nut of screwing, make its bottom surface and elevation adjust frock base top surface and support mutually in order to adjust the lead screw and fix mutually with elevation regulation frock base, can. The whole process is efficient and smooth, a traditional one-time elevation tool is not required to be built according to the elevation requirements one by one, the universality is strong, the production cost of the steel box girder can be effectively reduced, and the disassembly and the assembly are convenient.
Drawings
Fig. 1 is the utility model discloses elevation adjustment frock platform structure schematic diagram.
Figure 2 is the utility model discloses elevation adjustment frock platform cross sectional view.
Figure 3 is the utility model discloses elevation adjustment frock platform top view.
Fig. 4 is a schematic view of the guiding positioning plate of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-elevation adjusting tool base, 2-guiding and positioning mechanism, 3-fixing mechanism, 4-elevation adjusting screw rod, 5-sliding chute, 6-guiding and positioning plate, 7-threaded hole, 8-strip-shaped through hole and 9-fixing nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.
As shown in fig. 1-4, the utility model provides a frock platform is adjusted to modularization elevation for steel case roof beam production and processing, simple structure, design scientific and reasonable, convenient to use, its commonality is strong, can effectively avoid setting up the elevation frock respectively for every component, can effectively improve steel case roof beam production efficiency, practices thrift steel case roof beam manufacturing cost, can also effectively reduce steel case roof beam production material consume simultaneously to green. The utility model discloses modular elevation adjustment tooling platform for steel box girder production and processing includes elevation adjustment tooling base 1, guiding and positioning mechanism 2 arranged in the elevation adjustment tooling base 1, fixing mechanism 3 arranged on the elevation adjustment tooling base 1, and elevation adjustment lead screw 4 arranged in the elevation adjustment tooling base 1 through the guiding and positioning mechanism 2 and the fixing mechanism 3; the elevation adjusting screw rod 4 is detachably connected with the guiding and positioning mechanism 2 and the fixing mechanism 3 respectively. The elevation adjusting tool base 1 is of a cuboid structure with a hollow inner part.
The utility model discloses guide positioning mechanism 2 is including locating spout 5 on two inside walls of 1 inner chamber of elevation regulation frock base to and slide and inlay the direction locating plate 6 of adorning in spout 5, set up on the direction locating plate 6 with the screw hole 7 of 4 looks adaptations of elevation regulation lead screw, 4 threaded connection of elevation regulation lead screw are in screw hole 7. The guide positioning plate 6 is a rectangular steel plate, the elevation adjusting screw rod 4 is vertically distributed with the guide positioning plate 6, and the guide positioning plate 6 is horizontally distributed.
The utility model discloses fixed establishment 3 is including offering on the 1 roof of elevation regulation frock base and being rectangular shape strip-shaped through-hole 8 to and threaded connection adjusts fixation nut 9 on lead screw 4 in the elevation, and elevation regulation lead screw 4 stretches into in the elevation regulation frock base 1 and is connected with guiding orientation mechanism 2 through strip-shaped through-hole 8. The elevation adjusting tool base 1 is propped against the top wall of the elevation adjusting tool base 1 through a fixing nut 9 and is fixed with the elevation adjusting tool base 1. The fixing nut 9 is located above the top wall of the elevation adjusting tool base 1.
The utility model discloses lead screw 4 is adjusted to the elevation has a plurality ofly to lead screw 4 is adjusted to the elevation distributes side by side on frock base 1 is adjusted to the elevation. The elevation adjusting screw rod 4 and the elevation adjusting tool base 1 are located in the same vertical plane.
The utility model discloses frock platform is adjusted with modularization elevation to steel case roof beam production and processing mainly includes that elevation adjustment frock base, guiding orientation mechanism, fixed establishment and elevation adjust the lead screw, and elevation adjustment frock base is rectangular bodily form, its inside cavity, and the cavity inner chamber is rectangular bodily form. The guide positioning mechanism comprises a pair of mutually matched sliding grooves arranged on two inner side walls of the hollow inner cavity, the sliding grooves are horizontally distributed, a guide positioning plate made of a rectangular steel plate is horizontally embedded in the sliding grooves, the guide positioning plate can freely move horizontally in the sliding grooves, and threaded holes matched with the elevation adjusting screw rods are formed in the guide positioning plate. Fixing mechanism then adjusts a rectangular shape through-hole on the frock base roof including seting up in the elevation, and rectangular shape through-hole adjusts frock base length direction along the elevation and distributes, and its width is greater than the elevation and adjusts the lead screw external diameter, and fixing mechanism still includes and adjusts lead screw looks adaptation and threaded connection in the elevation and adjust the fixation nut on the lead screw with the elevation, and the fixation nut external diameter is greater than rectangular shape through-hole width. During the use, adjust the lead screw with the elevation and stretch into in the elevation regulation frock base and threaded connection to the threaded hole on the guide positioning board through rectangular shape through-hole, guide positioning board horizontal distribution this moment, the vertical distribution of elevation regulation lead screw, adjust the lead screw through the elevation and remove guide positioning board to the steel box roof beam and need elevation regulation structure under, adjust the elevation that the lead screw was adjusted to the elevation according to setting for the elevation that the structure was adjusted to steel box roof beam needs elevation again, the back is adjusted to the elevation regulation lead screw, the fixation nut of screwing, make its bottom surface and elevation adjust frock base top surface and support mutually in order to adjust the lead screw and fix mutually with elevation regulation frock base, can. The whole process is efficient and smooth, a traditional one-time elevation tool is not required to be built according to the elevation requirements one by one, the universality is strong, the production cost of the steel box girder can be effectively reduced, and the disassembly and the assembly are convenient.
The utility model discloses frock platform frock with adjustable modularization for steel construction processing, adjust the frock base including the elevation that is rectangular bodily form, locate the inside guiding orientation mechanism of elevation regulation frock base, locate the elevation and adjust the fixed establishment on the frock base to and the elevation adjustment lead screw, the elevation adjustment lead screw can be dismantled with fixed establishment and guiding orientation mechanism screw respectively and be connected. The guide positioning mechanism comprises a sliding groove and a guide positioning plate, the sliding groove is fixed in the elevation adjusting tool base and plays a role in guide positioning, the guide positioning plate is located in the sliding groove, a threaded hole is formed in the guide positioning plate, and the elevation adjusting screw rod is connected in the threaded hole of the guide positioning plate in a threaded mode. The guide positioning plate has proper thickness and is rectangular, and the guide positioning plate is positioned inside the guide sliding groove in the elevation adjusting tool base and can horizontally move in the sliding groove. The fixing mechanism comprises a long strip-shaped through hole and a fixing nut which are located at the top end of the elevation adjusting tool base, and the elevation adjusting screw rod is connected in the fixing nut in a threaded mode. The fixing nut is located right above the guide positioning plate, and the bottom end face of the fixing nut is abutted to the top face of the elevation adjusting tool base. The elevation adjustment lead screw is vertically distributed, and the elevation adjustment lead screw and the center of gravity of the tool main body are coaxial.
The utility model also provides a steel case roof beam production and processing is with modularization elevation adjustment frock platform's adjusting method, including following step:
step 1, placing an elevation adjusting tool base at a structure of a steel box girder needing elevation adjustment;
step 3, the guide positioning plate is moved to the position under the steel box girder elevation adjusting structure through the elevation adjusting screw rod, the elevation adjusting screw rod elevation is controlled according to the specific elevation parameter of the steel box girder elevation adjusting structure, then the fixing nut is installed on the elevation adjusting screw rod in a threaded mode and is rotated downwards all the time to enable the fixing nut to abut against the top surface of the elevation adjusting tool base so as to fix the elevation adjusting screw rod.
The utility model discloses only need screw up fixation nut through the pine of unscrewing to and rotating elevation regulation lead screw, can realize that the elevation is adjusted, use extremely simply, and the utility model discloses the elevation is adjusted frock platform and is adopted can dismantle connected mode, can use repeatedly, with practicing thrift elevation frock cost of manufacture. The utility model discloses frock platform is adjusted to elevation guiding orientation mechanism main function is to the elevation regulation lead screw play direction and fixed action to avoid the elevation regulation lead screw to appear rocking or even fall partially in the elevation accommodation process. In the production process of the daily steel structure box girder, due to factors such as project difference and actual engineering position of the steel box girder, the steel box girder has different elevations and different intervals at different parts during final assembly and welding. In the actual production process, required elevation tools are required to be frequently built at different elevations according to the actual or detailed drawings, the built traditional elevation adjusting tool is unsatisfactory in adjusting precision and cannot meet the higher and higher precision requirement during installation of the steel structure box beam, and meanwhile, the traditional tool is poor in universality and difficult to recycle, so that tool material waste is caused. The utility model discloses frock platform is adjusted to elevation only needs to adjust the horizontal spacing and the height that the lead screw was adjusted to the elevation, can reach the purpose of the different hunch degrees of steel box girder and straightness accuracy, simultaneously, in assembly, welding process, the high accuracy of adjustable elevation frock provides strong guarantee for the preparation of steel box girder. The utility model discloses frock platform is adjusted to elevation adjusts the horizontal spacing between the elevation regulation lead screw through adjusting the horizontal position of direction locating plate in the spout, adjusts the height that the lead screw was adjusted to the elevation through rotating elevation regulation lead screw, adjusts very portably.
The utility model discloses elevation adjustment frock platform adopts the adjustable frock platform of modularization, can greatly improve the commonality and the universality of frock, simultaneously, because this kind of adjustable frock of modularization has extremely strong whole detachability and assembling nature, can greatly promote the availability factor of frock, avoids unnecessary extravagant, can also practice thrift and stack the space; due to modularization, the flexibility of the tool is greatly improved, and the tool is convenient to move and set up; and the use of the adjustable frock of modularization is compared in traditional frock, can reduce in a large number because of setting up material loss and the human cost of different elevation frocks for product production accords with the requirement of the green economic development of the green low carbon of environmental protection more.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the same, and certainly not to limit the scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems solved by the present invention are still consistent with the present invention, and all the modifications or colors made in the spirit and the idea of the main design of the present invention are included in the protection scope of the present invention; in addition, will the technical scheme of the utility model direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses an in the patent protection scope.
Claims (10)
1. The modular elevation adjusting tool platform for steel box girder production and processing is characterized by comprising an elevation adjusting tool base (1), a guiding and positioning mechanism (2) arranged in the elevation adjusting tool base (1), a fixing mechanism (3) arranged on the elevation adjusting tool base (1), and an elevation adjusting lead screw (4) arranged in the elevation adjusting tool base (1) through the guiding and positioning mechanism (2) and the fixing mechanism (3); the elevation adjusting screw rod (4) is detachably connected with the guiding and positioning mechanism (2) and the fixing mechanism (3) respectively.
2. The modular elevation adjustment tooling platform for the production and processing of the steel box girder according to claim 1, wherein the elevation adjustment tooling base (1) is of a cuboid structure with a hollow interior.
3. The modular elevation adjusting tooling platform for the steel box girder production and processing according to claim 2, wherein the guiding and positioning mechanism (2) comprises sliding grooves (5) formed in two inner side walls of an inner cavity of the elevation adjusting tooling base (1) and a guiding and positioning plate (6) embedded in the sliding grooves (5) in a sliding manner, a threaded hole (7) matched with the elevation adjusting lead screw (4) is formed in the guiding and positioning plate (6), and the elevation adjusting lead screw (4) is in threaded connection with the threaded hole (7).
4. The modular elevation adjusting tooling platform for the production and processing of the steel box girder according to claim 3, wherein the guide positioning plate (6) is a rectangular steel plate.
5. The modular elevation adjusting tooling platform for the production and processing of the steel box girder according to claim 3, wherein elevation adjusting screw rods (4) are vertically distributed with the guide positioning plates (6), and the guide positioning plates (6) are horizontally distributed.
6. The modular elevation adjusting tool platform for the steel box girder production and processing according to claim 2, wherein the fixing mechanism (3) comprises a long strip-shaped through hole (8) which is arranged on the top wall of the elevation adjusting tool base (1) and is long strip-shaped, and a fixing nut (9) which is in threaded connection with the elevation adjusting lead screw (4), and the elevation adjusting lead screw (4) extends into the elevation adjusting tool base (1) through the long strip-shaped through hole (8) and is connected with the guiding and positioning mechanism (2).
7. The modular elevation adjusting tool platform for the steel box girder production and processing according to claim 6, wherein the elevation adjusting tool base (1) abuts against the top wall of the elevation adjusting tool base (1) through a fixing nut (9) and is fixed with the elevation adjusting tool base (1).
8. The modular elevation adjustment tooling platform for the production and processing of the steel box girder according to claim 7, wherein the fixing nut (9) is positioned above the top wall of the elevation adjustment tooling base (1).
9. The modular elevation adjusting tool platform for the steel box girder production and processing according to claim 1, wherein the elevation adjusting screw rods (4) are provided in plurality, and the elevation adjusting screw rods (4) are distributed on the elevation adjusting tool base (1) side by side.
10. The modular elevation adjustment tool platform for the steel box girder production and processing according to claim 1, wherein the elevation adjustment screw rod (4) and the elevation adjustment tool base (1) are positioned in the same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120326073.5U CN214323288U (en) | 2021-02-05 | 2021-02-05 | Modular elevation adjusting tool platform for steel box girder production and processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120326073.5U CN214323288U (en) | 2021-02-05 | 2021-02-05 | Modular elevation adjusting tool platform for steel box girder production and processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214323288U true CN214323288U (en) | 2021-10-01 |
Family
ID=77884387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120326073.5U Active CN214323288U (en) | 2021-02-05 | 2021-02-05 | Modular elevation adjusting tool platform for steel box girder production and processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214323288U (en) |
-
2021
- 2021-02-05 CN CN202120326073.5U patent/CN214323288U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202165761U (en) | Adjustable mounting base | |
| CN214323288U (en) | Modular elevation adjusting tool platform for steel box girder production and processing | |
| CN112856164A (en) | Horizontal adjusting device for mechanical equipment installation | |
| CN112757243A (en) | Modular elevation adjusting tool platform for steel box girder production and processing and adjusting method thereof | |
| CN203628159U (en) | Quick installation centering apparatus for pedestal of large-scale equipment | |
| CN201988899U (en) | Adjustable bounce-up quick compacting device | |
| CN204381741U (en) | The manufacture assembly welding platform of hexagon high burnup fuel assembly skeleton | |
| CN208862708U (en) | A kind of stator module shrink-on matches device | |
| CN217326364U (en) | Civil engineering safety construction scaffold frame | |
| CN208409031U (en) | A kind of welding tooling of support unit | |
| CN211278100U (en) | Auxiliary tool for assembling inner support | |
| CN208123003U (en) | A kind of buttress for flange of wind power generation tower barrel and Cylinder assembly | |
| CN203151331U (en) | Electromotor wire coil final shaping machine | |
| CN218460633U (en) | Die sharing rivet | |
| CN111015629A (en) | Supporting base for adjusting and changing robot | |
| CN210651716U (en) | Core pulling mechanism of lamp mold | |
| CN216991845U (en) | Adjustable equal-height threaded rod die-filling tool | |
| CN220144543U (en) | Precise stamping die adjustment mechanism | |
| CN111945490A (en) | Track slab fine adjustment bracket | |
| CN215845541U (en) | Kovar ring forming equipment convenient for size adjustment | |
| CN218612921U (en) | Positioning device for CNC (computer numerical control) machining of 3D curved glass | |
| CN219818094U (en) | High-precision automatic drilling device | |
| CN219771367U (en) | Cable frame that electric power construction was used | |
| CN219082683U (en) | High-precision high-efficiency primary filter mounting frame | |
| CN102856142A (en) | Assembling tool for grid-control electron gun and assembling method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |