CN111604664A - Assembling mechanism and assembling method - Google Patents
Assembling mechanism and assembling method Download PDFInfo
- Publication number
- CN111604664A CN111604664A CN202010588712.5A CN202010588712A CN111604664A CN 111604664 A CN111604664 A CN 111604664A CN 202010588712 A CN202010588712 A CN 202010588712A CN 111604664 A CN111604664 A CN 111604664A
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- positioning
- shell
- cylinder
- circular component
- driving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses an assembling mechanism and an assembling method, wherein the assembling mechanism comprises a rack; the positioning jig is provided with a first positioning groove, and the bottom surface of the first positioning groove is provided with a through hole; the bearing jig comprises two positioning blocks and a first driving assembly for driving the two positioning blocks, and the two positioning blocks enclose a second positioning groove and a through groove in a closed state; the sucker is connected in the through groove in a penetrating manner; the second driving assembly is used for driving the sucker to move up and down between the through groove and the through hole; the adjusting assembly is used for adjusting the displacement and the rotation angle of the sucker on the horizontal plane; and the laser generator is arranged on the rack and positioned above the positioning jig, and is used for emitting alignment laser lines. The laser alignment device provided by the invention utilizes the laser alignment line to align the circular component, improves the alignment precision of the circular component, thereby improving the assembly precision, and meanwhile, the laser alignment device is simple in structure and easy to operate, and reduces the assembly cost of electronic equipment.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to an assembling mechanism and an assembling method for assembling a circular component and a shell of electronic equipment.
Background
With the continuous popularization of intelligent electronic equipment, some 360-degree circular screens are applied to the electronic equipment, and especially some intelligent wearable equipment, the application of the circular screens is wide.
Most of the existing circular screens are assembled on the shell in a manual operation mode, and alignment is carried out through silk screen printing on the screen assembly and silk screen printing on the shell during assembly.
However, manual operation mostly judges whether the silk screen is aligned by visual inspection, and the assembly precision of the screen is poor due to large visual inspection judgment errors. There are also some circular screens that are assembled by CCD automation equipment to meet the accuracy requirements, but these equipment tend to be costly, thereby increasing the manufacturing cost of such electronic devices.
Disclosure of Invention
The invention aims to provide an assembling mechanism which can improve the assembling precision of a circular screen and reduce the equipment cost.
The second purpose of the invention is to provide an assembling method.
In order to achieve the first purpose, the invention adopts the following technical scheme:
an assembling mechanism for assembling a circular component and a shell of an electronic device comprises,
a frame;
the positioning jig is arranged on the rack, a first positioning groove used for accommodating the shell and positioning the shell is arranged on the positioning jig, and a through hole extending downwards to the rack is formed in the bottom surface of the first positioning groove;
the bearing jig comprises two positioning blocks and a first driving assembly for driving the two positioning blocks to move between a mutually folded state and a mutually separated state, and the two positioning blocks enclose a second positioning groove for accommodating a circular part and a through groove extending from the bottom surface of the second positioning groove to the position right above the first positioning groove in the folded state;
the sucker is connected in the through groove in a penetrating manner;
the second driving assembly is used for driving the sucker to move up and down between the through groove and the through hole;
the adjusting assembly is used for adjusting the displacement and the rotation angle of the sucker on the horizontal plane;
and the laser generator is arranged on the rack and positioned above the positioning jig, and is used for emitting alignment laser lines.
Preferably, the first driving assembly comprises two first cylinders, the cylinder bodies of the two first cylinders are fixed on the rack, and the two positioning blocks are respectively fixed on the telescopic rods of the two first cylinders.
Preferably, the second driving assembly comprises a second cylinder, a cylinder body of the second cylinder is mounted on the adjusting unit, an expansion link of the second cylinder extends upwards, and the suction cup is fixed on the expansion link of the second cylinder.
Preferably, the adjusting unit includes the base, installs first slip table on the base, install second slip table on the first slip table and rotatable the installing revolving stage on the second slip table, be provided with on the base and be used for driving first slip table is followed the first regulation pole of frame width direction motion, be provided with on the first slip table and be used for driving the second slip table is followed the second regulation pole of frame length direction motion, the cylinder body of second cylinder is fixed on the revolving stage.
Preferably, the second driving assembly further comprises a third cylinder, a cylinder body of the third cylinder is fixed on the frame, a telescopic rod of the third cylinder extends upwards, and the base is fixedly connected to the telescopic rod of the third cylinder.
Preferably, the rack comprises a top plate horizontally arranged, the positioning jig is fixed to the upper surface of the top plate, and an avoiding hole for the sucker to pass through is formed in the top plate and located below the through hole.
Preferably, a support is arranged on the rack, a clamping block is detachably mounted at the top of the support, and the laser generator is fixed to the top of the support through the clamping block.
In order to achieve the second purpose, the invention adopts the following technical scheme:
the assembling method is used for assembling the circular component and the shell of the electronic equipment, and comprises the following steps:
s1, placing the shell in a positioning groove on the positioning jig, and positioning the shell by using the positioning groove;
s2, placing the circular component on a bearing jig, wherein the bearing jig is positioned above the positioning jig, jetting a laser alignment line to the bearing jig from top to bottom, and adjusting the placing angle of the circular component on the bearing jig to align the laser alignment line with the alignment mark on the circular component;
s3, adsorbing the lower surface of the circular component by using the sucker to fix the circular component on the sucker;
s4, opening the bearing jig, moving the sucker downwards and driving the circular component to move to the shell, and judging whether the alignment mark on the circular component is perfectly aligned with the laser alignment line;
if the alignment is perfect, go to step S5 directly;
if the alignment fails, adjusting the placing angle of the circular component to enable the laser alignment line to be superposed with the alignment mark of the circular component and the alignment mark of the shell, and completing the alignment of the circular component and the shell;
and S5, moving the sucker downwards to press the circular component on the shell, maintaining the pressure for a certain time, and fixing the circular component and the shell together to complete the assembly of the circular component and the shell.
Compared with the prior art, the laser alignment device has the advantages that the laser alignment line is used for aligning the circular part, the alignment precision of the circular part is improved, the assembly precision of the circular part is improved, the structure is simple, the operation is easy, and the assembly cost of electronic equipment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at B;
fig. 4 is a schematic view of the working state of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, 2 and 3, the present invention is an assembly mechanism for assembling a circular component and a housing of an electronic device, which is used for assembling a circular screen 91 to a housing 92, specifically, the assembly mechanism comprises a frame 10, a positioning fixture 20, a carrying fixture 30, a suction cup 50, a second driving assembly, an adjusting unit 70, and a laser generator 40, wherein a top plate 11 is arranged on the frame 10, the top plate 11 is horizontally arranged, the positioning jig 20 is fixedly connected to the upper surface of the top plate 11, the upper surface of the positioning jig 20 is recessed downwards to form a first positioning groove 21, the first positioning groove 21 is of a profile modeling design, the outer shape of the housing 92 is identical to that of the housing 92, and the housing 92 is positioned by placing the housing 92 in the first positioning groove 21, and at the same time, the positioning jig 20 is further provided with a through hole 22, and the through hole 22 extends downwards from the bottom surface of the positioning groove 21 to the lower surface of the positioning jig 20; the bearing jig 30 is used for bearing the circular screen 91, is located above the positioning jig 20, and includes two positioning blocks 31, the two positioning blocks 31 are arranged oppositely, and driven by a first driving assembly, the two positioning blocks 31 can move to a mutually folded state, and at the same time, the first driving assembly can also drive the two positioning blocks 31 to move to a mutually separated state towards a direction away from each other, when the two positioning blocks 31 are folded, the two positioning blocks are in butt joint fit, and the whole upper surface formed by the two positioning blocks in fit is recessed downwards to form a second positioning slot 33, that is, when the two positioning blocks 31 are in a folded state, the two positioning blocks enclose a second positioning slot 33, the shape of the second positioning slot 33 is consistent with the shape of the circular screen 91, and when the circular screen 91 is placed in the second positioning slot 33, the circular screen 91 is borne by the two positioning blocks 31; meanwhile, in a folded state of the two positioning blocks 31, a through groove 34 is formed on the whole formed by matching the two positioning blocks 31, the through groove 34 extends from the bottom surface of the second positioning groove 33 to the lower surfaces of the two positioning blocks 31, and the through groove 34 is located above the first positioning groove 21 and is opposite to the through hole 22. When the two positioning blocks 31 are in a state of being separated from each other, the circular screen 91 located in the second positioning groove 33 can be lowered into the housing 92 from between the two positioning blocks 31, that is, in this state, the two positioning blocks 31 are separated and do not support the circular screen 91. The suction cup 50 penetrates through the top plate 11 from bottom to top and extends into the through hole 22 of the positioning fixture 20, and under the driving of the second driving assembly, the suction cup 50 can move upwards in the through hole 22 to the through groove 34, when the suction cup 50 is located in the through groove 34, the suction cup 50 can be adsorbed on the lower surface of the circular screen 91 from bottom to top, so that the circular screen 91 is fixed on the suction cup 50, then, the suction cup 50 moves downwards under the driving of the second driving assembly, the circular screen 91 is placed on the shell 92, and the second driving assembly keeps the trend of driving the suction cup 50 to move downwards, so that the circular screen 91 and the shell 92 are pressed together; the adjusting unit 70 is used for adjusting the displacement and the rotation angle of the suction cup 50 on the horizontal plane, that is, adjusting the positions of the suction cup 50 in the length direction (i.e., the X direction in the drawing) of the rack 10 and the width direction (i.e., the Y direction in the drawing) of the rack 10, and simultaneously adjusting the rotation angle of the suction cup 50, so that when the suction cup 50 adsorbs and fixes the circular screen 91, the positions of the circular screen 91 on the X, Y and the θ axes can be adjusted, the laser generator 40 is installed on the rack 10 and located above the positioning fixture 20, and when the circular screen 91 is aligned, the laser generator 40 emits an alignment laser line.
Referring to fig. 4, the assembling mechanism of the present invention is directed to the assembling method of the circular screen 91 and the housing 92 as follows:
s1, the two positioning blocks 31 on the carrying fixture 30 are separated from each other, the housing 92 is first placed in the first positioning groove 21 of the positioning fixture 20, and the housing 92 is positioned by the profiling structure of the first positioning groove 21;
s2, the laser generator 40 emits a laser alignment line O, the first driving assembly drives the two positioning blocks 31 to be in a folding state, so that the second positioning grooves 33 are formed in the bearing jig 30, the circular screen 91 is placed in the second positioning grooves 33, and the laser alignment line O is aligned with the silk screen on the circular screen 91;
s3, starting the second driving assembly to drive the suction cup 50 to move upwards in the through hole 22 to the through slot 34, starting the suction cup 50, and fixing the lower surface of the circular screen 91 by the suction cup 50, while the first driving assembly drives the two positioning blocks 31 to be separated from each other;
s4, the second driving assembly drives the sucker 50 to move downwards, so that the circular screen 91 moves onto the shell 92, whether the silk screen of the circular screen 91 is perfectly aligned with the laser alignment line O or not is observed, and if the silk screen is perfectly aligned with the laser alignment line O, the step S5 is directly performed; if the alignment fails, the positions of X, Y and theta axes of the circular screen 91 are adjusted through the adjusting unit 70, so that the laser alignment line O is ensured to coincide with the silk-screen of the circular screen 91 and the silk-screen of the shell 92, and the alignment of the circular screen 91 and the shell 92 is completed;
s5, the second driving assembly drives the sucker 50 to move downwards, so that the circular screen 91 and the shell 92 are pressed, after pressure maintaining is carried out for a certain time, the circular screen 91 is fixed on the shell 92 by using foam gum on the periphery of the circular screen 91, and the circular screen 91 and the shell 92 are assembled.
In the above method, in the process of assembling the circular screen 91 and the housing 92, the silk-screen printing on the circular screen 91 and the housing 92 is used as the alignment mark to match with the laser alignment line to make a corresponding determination, and actually, the alignment mark may be the other parts on the circular screen 91 and the housing 92 that can be used as the reference.
In the present invention, the first driving component for driving the positioning blocks 31 is two first cylinders 32, wherein the two first cylinders 32 are arranged oppositely, the cylinder body parts of the first cylinders 32 are fixed on the upper surface of the top plate 11, the two positioning blocks 31 are respectively fixed on the telescopic rods of the two first cylinders 32, and the two first cylinders 32 work cooperatively to fold or separate the two positioning blocks 31. Of course, the first driving assembly may be another component as long as the two positioning blocks 31 can be opened and closed.
The second driving assembly comprises a second cylinder 60, the extension rod of the second cylinder 60 extends upwards, the suction cup 50 is fixedly mounted on the extension rod of the second cylinder 60, the cylinder body of the second cylinder 60 can be mounted on the adjusting unit 70, and the adjusting unit 70 drives the cylinder body of the second cylinder 60 to move in X, Y theta axes when in operation, so as to adjust the position of the suction cup 50. The adjusting unit 70 comprises a base 71, a first sliding table 72 mounted on the first 71, a second sliding table 74 mounted on the first sliding table 72, and a turntable 76 mounted on the second sliding table 74, and the cylinder body of the second cylinder 60 is fixed on the turntable 76; be provided with first regulation pole 73 on base 71, first regulation pole 73 is used for driving first slip table 72 along extending X to the motion, be provided with second regulation pole 75 on first slip table 72, second regulation pole 75 is used for driving second slip table 74 along extending Y to the motion, similar with current contrast platform structure, first regulation pole 73 and second regulation pole 75 are the lead screw transmission structure, so, can change the position of sucking disc 50 on the horizontal plane through rotating first regulation pole 73 and second regulation pole 75, through rotating revolving stage 76, can adjust the theta angle of sucking disc 50. In addition, the second driving assembly further comprises a third cylinder 80, a cylinder body part of the third cylinder 80 is fixed on the frame 10, the telescopic rod extends upwards, and the base 71 of the adjusting unit 70 is fixedly connected to the telescopic rod of the third cylinder 80, the suction cup 50 can be driven to move up and down through the third cylinder 80, the second cylinder 60 and the third cylinder 80 on the second driving assembly are both used for driving the suction cup 50 to move up and down, wherein the second cylinder 60 is a long-stroke cylinder, the third cylinder 80 is a short-stroke cylinder, the second cylinder 60 is used for driving the sucker 50 to move up and down, so that the suction cup 50 can suck and fix the circular screen 91, the third cylinder 80 is used for driving the suction cup 50 to move downwards in the above step S5, so that the suction cup 50 drives the circular screen 91 to move downwards and apply a certain downward pressure to the housing 92, thereby ensuring that the circular screen 91 and the housing 92 can be assembled together.
In the present invention, the second cylinder 60, the adjusting unit 70 and the third cylinder 80 are all installed below the top plate 11, so that an avoiding hole 111 is formed in the top plate 11, the avoiding hole is used for the suction cup 50 to pass through, so as to avoid the interference between the suction cup 50 and the top plate 11, and the avoiding hole 11 is disposed just below the through hole 22.
In addition, the invention is provided with a bracket 12 on the frame 10, the bracket 12 extends upwards from the upper surface of the top plate 11, a clamping block 13 is detachably fixed on the top of the bracket 12, and the laser generator 40 is fixed on the top of the bracket 12 through the clamping block 13, so that the position of the laser generator 40 can be adjusted according to the requirement to adapt to the installation of circular screens with different sizes or the assembly of other circular components with different sizes.
It should be noted that the assembling mechanism of the present invention is not only suitable for assembling the circular screen and the housing, but also suitable for aligning and assembling other circular components on the electronic device. Compared with the prior art, the laser alignment device has the advantages that the laser alignment line is used for aligning the circular part, the alignment precision of the circular part is improved, the assembly precision of the circular part is improved, the structure is simple, the operation is easy, and the assembly cost of electronic equipment is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An assembling mechanism for assembling a circular component and a shell of an electronic device is characterized by comprising,
a frame;
the positioning jig is arranged on the rack, a first positioning groove used for accommodating the shell and positioning the shell is arranged on the positioning jig, and a through hole extending downwards to the rack is formed in the bottom surface of the first positioning groove;
the bearing jig comprises two positioning blocks and a first driving assembly for driving the two positioning blocks to move between a mutually folded state and a mutually separated state, and the two positioning blocks enclose a second positioning groove for accommodating a circular part and a through groove extending from the bottom surface of the second positioning groove to the position right above the first positioning groove in the folded state;
the sucker is connected in the through groove in a penetrating manner;
the second driving assembly is used for driving the sucker to move up and down between the through groove and the through hole;
the adjusting assembly is used for adjusting the displacement and the rotation angle of the sucker on the horizontal plane;
and the laser generator is arranged on the rack and positioned above the positioning jig, and is used for emitting alignment laser lines.
2. The assembly mechanism according to claim 1, wherein the first driving assembly includes two first cylinders, the cylinder bodies of the two first cylinders are fixed on the frame, and the two positioning blocks are respectively fixed on the telescopic rods of the two first cylinders.
3. The assembly mechanism of claim 1, wherein the second driving assembly includes a second cylinder, a cylinder body of the second cylinder is mounted on the adjusting unit, a telescopic rod of the second cylinder extends upward, and the suction cup is fixed to the telescopic rod of the second cylinder.
4. The assembly mechanism according to claim 3, wherein the adjusting unit includes a base, a first sliding table mounted on the base, a second sliding table mounted on the first sliding table, and a turntable rotatably mounted on the second sliding table, the base is provided with a first adjusting lever for driving the first sliding table to move in the width direction of the rack, the first sliding table is provided with a second adjusting lever for driving the second sliding table to move in the length direction of the rack, and a cylinder body of the second air cylinder is fixed on the turntable.
5. The assembly mechanism of claim 4, wherein the second driving assembly further comprises a third cylinder, a cylinder body of the third cylinder is fixed on the frame, an expansion link of the third cylinder extends upward, and the base is fixedly connected to the expansion link of the third cylinder.
6. The assembly mechanism according to claim 1, wherein the frame includes a top plate horizontally disposed, the positioning fixture is fixed on an upper surface of the top plate, and an avoiding hole for the suction cup to pass through is disposed on the top plate below the through hole.
7. The assembly mechanism of claim 1, wherein the frame is provided with a bracket, a clamping block is detachably mounted on the top of the bracket, and the laser generator is fixed on the top of the bracket through the clamping block.
8. An assembling method for assembling a circular component and a shell of an electronic device, comprising the steps of:
s1, placing the shell in a positioning groove on the positioning jig, and positioning the shell by using the positioning groove;
s2, placing the circular component on a bearing jig, wherein the bearing jig is positioned above the positioning jig, jetting a laser alignment line to the bearing jig from top to bottom, and adjusting the placing angle of the circular component on the bearing jig to align the laser alignment line with the alignment mark on the circular component;
s3, adsorbing the lower surface of the circular component by using the sucker to fix the circular component on the sucker;
s4, opening the bearing jig, moving the sucker downwards and driving the circular component to move to the shell, and judging whether the alignment mark on the circular component is perfectly aligned with the laser alignment line;
if the alignment is perfect, go to step S5 directly;
if the alignment fails, adjusting the placing angle of the circular component to enable the laser alignment line to be superposed with the alignment mark of the circular component and the alignment mark of the shell, and completing the alignment of the circular component and the shell;
and S5, moving the sucker downwards to press the circular component on the shell, maintaining the pressure for a certain time, and fixing the circular component and the shell together to complete the assembly of the circular component and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588712.5A CN111604664A (en) | 2020-06-24 | 2020-06-24 | Assembling mechanism and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588712.5A CN111604664A (en) | 2020-06-24 | 2020-06-24 | Assembling mechanism and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111604664A true CN111604664A (en) | 2020-09-01 |
Family
ID=72196416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588712.5A Withdrawn CN111604664A (en) | 2020-06-24 | 2020-06-24 | Assembling mechanism and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111604664A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691925A (en) * | 2021-08-09 | 2021-11-23 | 苏州佳祺仕信息科技有限公司 | Assembling device and positioning method for mounting fragile sheet on earphone |
| CN114871968A (en) * | 2022-06-02 | 2022-08-09 | 中国航发北京航空材料研究院 | Tool clamp for controlling secondary orientation of single crystal blade and using method thereof |
| CN115971862A (en) * | 2023-02-13 | 2023-04-18 | 歌尔股份有限公司 | Alignment assembly device |
| CN116393915A (en) * | 2023-06-07 | 2023-07-07 | 太原理工大学 | Hot jacket processing device and method for large thin-wall pipe fitting |
-
2020
- 2020-06-24 CN CN202010588712.5A patent/CN111604664A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691925A (en) * | 2021-08-09 | 2021-11-23 | 苏州佳祺仕信息科技有限公司 | Assembling device and positioning method for mounting fragile sheet on earphone |
| CN114871968A (en) * | 2022-06-02 | 2022-08-09 | 中国航发北京航空材料研究院 | Tool clamp for controlling secondary orientation of single crystal blade and using method thereof |
| CN114871968B (en) * | 2022-06-02 | 2024-02-27 | 中国航发北京航空材料研究院 | Tool clamp for controlling secondary orientation of monocrystalline blade and application method thereof |
| CN115971862A (en) * | 2023-02-13 | 2023-04-18 | 歌尔股份有限公司 | Alignment assembly device |
| CN116393915A (en) * | 2023-06-07 | 2023-07-07 | 太原理工大学 | Hot jacket processing device and method for large thin-wall pipe fitting |
| CN116393915B (en) * | 2023-06-07 | 2023-09-08 | 太原理工大学 | Hot jacket processing device and method for large thin-wall pipe fitting |
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Application publication date: 20200901 |