CN220693402U - Automatic positioning and calibrating device for circuit board - Google Patents
Automatic positioning and calibrating device for circuit board Download PDFInfo
- Publication number
- CN220693402U CN220693402U CN202322103814.5U CN202322103814U CN220693402U CN 220693402 U CN220693402 U CN 220693402U CN 202322103814 U CN202322103814 U CN 202322103814U CN 220693402 U CN220693402 U CN 220693402U
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- circuit board
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- frame
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000007639 printing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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Abstract
The application relates to the technical field of printing equipment, especially, relate to an automatic positioning calibrating device of circuit board, it includes the frame, be provided with feeding subassembly, locating component and feeding subassembly in the frame, feeding subassembly sets up the feed end at the frame and is used for feeding the circuit board, just feeding subassembly, locating component and feeding subassembly arrange the setting along the transmission direction piece of frame, locating component is used for fixing a position the circuit board, feeding subassembly is used for carrying out the pay-off to the circuit board that fixes a position. The method has the effect of improving the degree of automation of positioning calibration of the circuit board.
Description
Technical Field
The application relates to the technical field of printing equipment, in particular to an automatic positioning and calibrating device for a circuit board.
Background
A screen printing machine is a common printing machine for printing characters and images, and in the printing process, the printed characters and images are required to be made into a circuit board, and then the circuit board is mounted on the printing machine to realize printing.
In the related art, when a screen printer is used for a circuit board with a larger size, the circuit board needs to be manually placed on a fixed platform, and then an automatic printing process is started, so that the equipment starts automatic printing. But the printed product needs to be placed in the central position of the printing platform, so that the effect of positioning and calibration is realized, and the circuit board is inconvenient to place in the fixed printing platform through manpower due to the fact that the distance between an operator and the printing platform is too far, so that the workload of staff is increased, and the production efficiency is reduced.
Disclosure of Invention
In order to improve the degree of automation of positioning calibration to the circuit board, the application provides an automatic positioning calibration device of circuit board.
The application provides an automatic positioning calibration device of circuit board adopts following technical scheme:
the utility model provides an automatic positioning calibrating device of circuit board, includes the frame, be provided with feeding subassembly, locating component and feeding subassembly in the frame, feeding subassembly sets up the feed end at the frame and is used for feeding the circuit board, just feeding subassembly, locating component and feeding subassembly are arranged along the transmission direction piece of frame and are set up, locating component is used for fixing a position the circuit board, feeding subassembly is used for carrying out the pay-off to the circuit board that fixes a position.
Through adopting above-mentioned technical scheme, remove locating component department with the circuit board through feeding subassembly, then the rethread locating component is fixed a position the circuit board, and the circuit board that will fix a position is sent out through feeding subassembly at last to realized the effect that automatic positioning calibrating device fixed a position the circuit board.
Optionally, the feeding subassembly includes the feeding conveyer belt, the frame is provided with the mounting groove along direction of transmission, the installation is vertical installs the feeding cylinder in the mounting groove, the output of feeding cylinder sets up, just the output fixed mounting of feeding cylinder has the feeding frame, the feeding conveyer belt is provided with two, and two the feeding conveyer belt is installed respectively in the both sides that feeding frame direction of transmission kept away from each other, two the feeding conveyer belt is mutual parallel arrangement, install the feeding driving piece in the feeding frame, the feeding driving piece is used for driving feeding conveyer belt transmission.
Through adopting above-mentioned technical scheme, when feeding, the feeding cylinder drives the feeding frame and upwards moves for the top surface of frame can be stretched out to the feeding conveyer belt and accept the circuit board, then under the drive of feeding driving piece, makes the feeding conveyer belt convey the circuit board, thereby has realized the effect that the feeding subassembly carried the circuit board.
Optionally, the feeding driving piece is the feeding motor, the coaxial fixedly connected with driving sprocket of output of feeding motor, two rotate between the feeding conveyer belt and install driven sprocket, driven sprocket passes through chain drive with driving sprocket and is connected, driven sprocket is coaxial to be fixed with the synchronizing lever, the both ends of synchronizing lever are connected with two feeding conveyer belt transmissions respectively.
Through adopting above-mentioned technical scheme, the feeding motor starts, can drive driven sprocket through driving sprocket and rotate to drive two feeding conveyer belt transmission through the synchronizing lever, thereby realize the transmission to the circuit board, improve two feeding conveyer belt driven synchronicity.
Optionally, the locating component includes the locating bench, the locating bench is installed at the top of frame, the middle part of locating bench has seted up along transmission direction corresponds the mounting groove and has kept away the position groove, the portal frame is installed at the top of locating bench, width setting element is installed to the bottom of portal frame, width setting element is used for carrying out width direction's location to the circuit board, the frame is provided with length setting element, length setting element is used for carrying out length direction's location setting to the circuit board.
Through adopting above-mentioned technical scheme, carry out width direction and length direction's positioning work to the circuit board through broadband portion setting element and length setting element cooperation to realize the effect that locating component is used for the location circuit board.
Optionally, the width setting element is width location cylinder, width location cylinder is provided with two, two width location cylinder sets up in the both sides of portal frame along the length direction central line symmetry of portal frame, the fixed plate is installed to the bottom of portal frame corresponding two width location cylinders, the output and the fixed plate fixed connection of width location cylinder, the cylinder body of width location cylinder is fixed with the width locating rack, the width locating rack sets up downwards, the width locating rack is used for promoting the side of circuit board width direction, the circuit board moves towards central point and carries out width direction's location.
Through adopting above-mentioned technical scheme, the storage end of width positioning cylinder can drive the cylinder body of width positioning cylinder and drive width locating rack and remove to make two width locating racks cooperation carry out clamping and locating circuit board in width direction, make the circuit board set up in width direction placed in the middle.
Optionally, the length setting element is the locating bench, locating bench fixed mounting is at the top of portal frame, just the other end of locating bench sets up towards positioner's feed end, the both sides lateral wall of locating bench all is provided with the fixed part, two the fixed part is provided with horizontal cylinder towards one side of positioner feed end, horizontal cylinder's output and the side fixed connection of fixed part, two horizontal cylinder's cylinder body is equal fixed mounting has vertical cylinder, vertical cylinder's output sets up down, just vertical cylinder's output is equal fixed mounting has length locating lever, install spacing cylinder in the mounting groove, spacing cylinder is vertical setting, just spacing cylinder's output sets up, spacing cylinder's output is fixed with the spacing, the spacing is used for spacing circuit board at length direction.
Through adopting above-mentioned technical scheme, when the output of spacing cylinder extends, the locating rack can stretch out in the top of locating bench to carry out spacingly to the circuit board that removes along transmission direction, then stretch out in the top surface of frame through the vertical cylinder control length locating lever of horizontal cylinder cooperation, and drive circuit board removes, cooperates the locating rack to carry out the location setting placed in the middle to the circuit board on length direction.
Optionally, the mounting is installed at the top of portal frame, the mounting is used for fixed circuit board that fixes a position, fixed sucking disc is installed to the output of fixed cylinder, and fixed sucking disc is used for fixed circuit board.
Through adopting above-mentioned technical scheme, when the circuit board location is good, the output of fixed cylinder can drive fixed sucking disc and remove downwards and adsorb to fix at the upper surface of circuit board to fix the circuit board through fixed sucking disc.
Optionally, the feeding assembly includes the delivery sheet, delivery sheet fixed mounting is in the mounting groove, and driving motor is installed to the delivery sheet, the top level of delivery sheet is provided with the movable plate, driving motor is used for the drive the movable plate removes, the movable plate can follow transmission direction reciprocating motion, the top of movable plate is vertically upwards and is provided with the movable cylinder, the mobile station is installed to the output of movable cylinder, the mobile station is used for driving the circuit board and removes.
Through adopting above-mentioned technical scheme, when the circuit board location is good, thereby remove the cylinder and promote the mobile station and upwards move and prop up the circuit board, cooperation driving motor drive mobile plate drive circuit board and remove towards the feed end this moment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the circuit board is moved to the positioning assembly through the feeding assembly, then the positioning assembly is used for positioning the circuit board, and finally the positioned circuit board is sent out through the feeding assembly, so that the effect of positioning the circuit board by the automatic positioning and calibrating device is realized;
2. the fixing piece is arranged, when the circuit board is positioned, the output end of the fixing cylinder can drive the fixing sucker to move downwards and be adsorbed and fixed on the upper surface of the circuit board, so that the circuit board is fixed through the fixing sucker;
3. the feeding assembly is arranged, when the circuit board is positioned, the moving cylinder pushes the moving table to move upwards so as to prop up the circuit board, and at the moment, the moving plate is driven by the driving motor to drive the circuit board to move towards the feeding end, so that automatic feeding of the circuit board is realized.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the automatic positioning calibration device according to the present embodiment.
Fig. 2 is a schematic structural diagram of the automatic positioning calibration device according to the present embodiment.
Fig. 3 is a schematic view of another view internal structure of the automatic positioning calibration device according to the present embodiment.
Reference numerals illustrate:
1. a frame; 21. a feed assembly; 211. a feed conveyor; 212. a feed cylinder; 213. a feeding frame; 214. a feed motor; 22. a positioning assembly; 221. a positioning table; 222. a portal frame; 223. a width positioning member; 224. a length positioning member; 225. a fixing plate; 226. a width positioning frame; 227. a horizontal cylinder; 228. a vertical cylinder; 229. a length positioning rod; 23. a feeding assembly; 231. a feeding plate; 232. a driving motor; 233. a moving plate; 234. a moving cylinder; 235. a guide rail; 236. a mobile station; 24. a mounting groove; 25. a limit cylinder; 251. a limiting frame; 26. a slide rail; 27. a fixed cylinder; 28. a pattern detection device.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses an automatic positioning and calibrating device for a circuit board. Referring to fig. 1-3, an automatic positioning and calibrating device for a circuit board comprises a frame 1, a feeding component 21, a positioning component 22 and a feeding component 23, wherein the feeding component 21 is arranged at a feeding end of the frame 1 and used for feeding the circuit board, the positioning component 22 is used for positioning the circuit board, and the feeding component 23 is used for feeding the positioned circuit board.
Specifically, the feeding assembly 21 includes a feeding conveyor belt 211, the frame 1 is provided with a mounting groove 24 along the transmission direction, a feeding cylinder 212 is vertically installed in the mounting groove 24, the output end of the feeding cylinder 212 is upward, the output end of the feeding cylinder 212 is fixedly provided with a feeding frame 213, the feeding conveyor belt 211 is provided with two feeding conveyor belts, the two feeding conveyor belts 211 are respectively installed on two sides of the feeding frame 213, which are far away from each other in the transmission direction, and the two feeding conveyor belts 211 are arranged in parallel. A feeding driving member is installed in the feeding frame 213, in this embodiment, the feeding driving member is a feeding motor 214, an output end of the feeding motor 214 is coaxially and fixedly connected with a driving sprocket, a driven sprocket is rotatably installed between the two feeding conveyor belts 211, and the driven sprocket is in transmission connection with the driving sprocket through a chain. The driven sprocket is coaxially fixed with a synchronizing rod, and two ends of the synchronizing rod are respectively in transmission connection with the two feeding conveyor belts 211.
During feeding, the feeding cylinder 212 drives the feeding frame 213 to move upwards, so that the feeding conveyor belt 211 can bear a circuit board at the discharge end of the dust adhering device, at the moment, the feeding motor 214 is started, the driven sprocket can be driven by the driving sprocket to rotate, and the feeding conveyor belt 211 is driven to drive, so that the circuit board is transmitted.
Referring to fig. 1 to 3, the positioning assembly 22 includes a positioning table 221, the positioning table 221 is mounted on the top of the frame 1, and a clearance slot is formed in the middle of the positioning table 221 along the transmission direction corresponding to the mounting slot 24. The portal frame 222 is installed at the top of location platform 221, and width setting element 223 is installed to the bottom of portal frame 222, and width setting element 223 is used for carrying out width direction's location to the circuit board, and frame 1 is provided with length setting element 224, and length setting element 224 is used for carrying out length direction's location setting to the circuit board.
Specifically, the width positioning members 223 are width positioning cylinders, and in this embodiment, two width positioning cylinders are provided and symmetrically disposed on two sides of the gantry 222 along the center line of the gantry 222 in the length direction. Further, the bottom of portal frame 222 corresponds two width location cylinders and installs fixed plate 225, and the output and the fixed plate 225 fixed connection of width location cylinder, the cylinder body of width location cylinder are fixed with width location frame 226, and width location frame 226 sets up down, and width location frame 226 is used for promoting the side of circuit board width direction, and the circuit board moves towards central point and carries out width direction's location.
Referring to fig. 1-3, a limiting cylinder 25 is installed in the installation groove 24, the limiting cylinder 25 is vertically arranged, an output end of the limiting cylinder 25 is upward arranged, a limiting frame 251 is fixed at the output end of the limiting cylinder 25, and the limiting frame 251 is used for limiting the circuit board in the length direction. When the output end of the limiting cylinder 25 is extended, the limiting frame 251 can extend above the positioning table 221, thereby limiting the circuit board moving in the conveying direction. The length positioning piece 224 is a positioning table 221, the positioning table 221 is fixedly installed on the top of the portal frame 222, and the other end of the positioning table 221 is arranged towards the feeding end of the positioning device. The both sides lateral wall of locating bench 221 all is provided with fixed part, and two fixed parts are provided with horizontal cylinder 227 towards one side of positioner feed end, and the output of horizontal cylinder 227 and the side fixed connection of fixed part. The cylinder bodies of the two horizontal cylinders 227 are fixedly provided with vertical cylinders 228, the output ends of the vertical cylinders 228 are arranged downwards, and the output ends of the vertical cylinders 228 are fixedly provided with length positioning rods 229.
When the length direction is positioned, the horizontal air cylinder 227 drives the vertical air cylinder 228 to move in the length direction, and meanwhile, the output end of the vertical air cylinder 228 stretches to enable the length positioning rods 229 to drive the circuit board to move along the transmission direction, so that the two length positioning rods 229 are matched with the limiting frame 251 to position the circuit board in the length direction.
Referring to fig. 1 to 3, in order to improve the moving stability of the horizontal cylinders 227, a slide rail 26 is installed at the bottom of the positioning table 221 in the transfer direction, and a slider is fixed between the two horizontal cylinders 227 and slidably engaged with the slide rail 26.
Referring to fig. 1-3, a fixture is mounted on top of the gantry 222 for securing the positioned circuit board. Specifically, the fixing members are fixing cylinders 27, and in this embodiment, four fixing cylinders 27 are disposed at four corners of the gantry 222 vertically downward and are rectangular. The output end of the fixed cylinder 27 is provided with a fixed sucker which is used for fixing the circuit board. When the circuit board is positioned, the output end of the fixed air cylinder 27 can drive the fixed sucker to move downwards and adsorb and fix the upper surface of the circuit board, so that the circuit board is fixed through the fixed sucker arranged in four rectangles.
Referring to fig. 1-3, a pattern detection device 28 is mounted on top of the positioning table 221, the pattern detection device 28 is used for comparing positioning points on the circuit board, and when the pattern detection device 28 detects the positioning points on the circuit board, the length positioning piece 224 and the width positioning piece 223 can be controlled to be started, so that the circuit board is positioned in the length direction and the width direction.
Referring to fig. 1-3, the feed assembly 23 includes a feed plate 231, the feed plate 231 is fixedly mounted in the mounting slot 24, and the feed plate 231 is disposed above the feed frame 213. The top of the feeding plate 231 is rotatably provided with a driving pulley and a driven pulley, respectively, along a transmission direction, and the driving pulley is connected with the driven pulley through a belt transmission. The feeding plate 231 is provided with a driving motor 232, and the output end of the driving motor 232 is fixedly connected with the driving belt pulley in a coaxial manner. The lateral wall of belt is fixed with the connecting block, and the movable plate 233 of level setting is installed at the top of connecting block, and movable plate 233 can follow transmission direction reciprocating motion through the drive of belt. The top of the movable plate 233 is provided with a movable air cylinder 234 vertically upwards, and a movable table 236 is installed at the output end of the movable air cylinder 234, and the movable table 236 is used for driving the circuit board to move.
When the circuit board is positioned, the fixing piece is used for releasing the fixing of the circuit board, the limiting cylinder 25 drives the limiting frame 251 to retract into the mounting groove 24, the moving cylinder 234 pushes the moving table 236 to move upwards so as to prop up the circuit board, and the circuit board is driven to move towards the feeding end of the screen printing device by matching with the belt.
Referring to fig. 1 to 3, in order to improve the movement stability of the movable plate 233, two guide rails 235 are installed in the installation groove 24, the two guide rails 235 are disposed at two sides of the length direction of the movable plate 233, guide blocks are correspondingly fixed at two sides of the length direction of the movable plate 233, and the two guide blocks are slidably engaged with the two guide rails 235, respectively.
The implementation principle of the automatic positioning and calibrating device for the circuit board is as follows:
the circuit board is moved to the positioning assembly 22 through the feeding assembly 21, then the circuit board is positioned through the positioning assembly 22, and finally the positioned circuit board is sent out through the feeding assembly 23, so that the effect of the automatic positioning and calibrating device on the circuit board is realized, and the degree of automation of positioning and calibrating the circuit board is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. An automatic positioning and calibrating device for a circuit board is characterized in that: including frame (1), be provided with feeding subassembly (21), locating component (22) and feeding subassembly (23) in frame (1), feeding subassembly (21) set up the feed end at frame (1) and be used for feeding the circuit board, just feeding subassembly (21), locating component (22) and feeding subassembly (23) are arranged along the transmission direction piece of frame (1) and are set up, locating component (22) are used for fixing a position the circuit board, feeding subassembly (23) are used for carrying out the pay-off to the circuit board that fixes a position.
2. The automatic positioning and calibration device for a circuit board according to claim 1, wherein: the feeding assembly (21) comprises feeding conveyor belts (211), wherein the rack (1) is provided with mounting grooves (24) along the transmission direction, feeding air cylinders (212) are vertically arranged in the mounting grooves (24), the output ends of the feeding air cylinders (212) are upwards arranged, feeding frames (213) are fixedly arranged at the output ends of the feeding air cylinders (212), the feeding conveyor belts (211) are provided with two feeding conveyor belts, the feeding conveyor belts (211) are respectively arranged on two sides, far away from each other, of the feeding frames (213), the feeding conveyor belts (211) are arranged in parallel, and feeding driving pieces are arranged in the feeding frames (213) and used for driving the feeding conveyor belts (211) to transmit.
3. An automatic positioning and calibrating device for circuit board according to claim 2, wherein: the feeding driving piece is a feeding motor (214), a driving sprocket is coaxially and fixedly connected to the output end of the feeding motor (214), a driven sprocket is rotatably installed between the two feeding conveyor belts (211), the driven sprocket is connected with the driving sprocket through chain transmission, a synchronizing rod is coaxially and fixedly arranged on the driven sprocket, and two ends of the synchronizing rod are respectively connected with the two feeding conveyor belts (211) in a transmission mode.
4. An automatic positioning and calibrating device for circuit board according to claim 2, wherein: positioning assembly (22) are including locating bench (221), the top at frame (1) is installed to locating bench (221), keep away the position groove along transmission direction correspondence mounting groove (24) in the middle part of locating bench (221), portal frame (222) are installed at the top of locating bench (221), width setting element (223) are installed to the bottom of portal frame (222), width setting element (223) are used for carrying out width direction's location to the circuit board, frame (1) is provided with length setting element (224), length setting element (224) are used for carrying out length direction's location setting to the circuit board.
5. The automatic positioning and calibration device for a circuit board according to claim 4, wherein: the width setting element (223) is width location cylinder, width location cylinder is provided with two, two width location cylinder sets up in the both sides of portal frame (222) along the length direction central line symmetry of portal frame (222), fixed plate (225) are installed to the bottom of portal frame (222) corresponding two width location cylinders, the output and the fixed plate (225) fixed connection of width location cylinder, the cylinder body of width location cylinder is fixed with width location frame (226), width location frame (226) set up downwards, width location frame (226) are used for promoting the side of circuit board width direction, the circuit board moves the location of carrying out width direction towards central point.
6. The automatic positioning and calibration device for a circuit board according to claim 5, wherein: length setting element (224) is locating bench (221), locating bench (221) fixed mounting is at the top of portal frame (222), just the other end of locating bench (221) sets up towards positioner's feed end, the both sides lateral wall of locating bench (221) all is provided with fixed part, two fixed part is provided with horizontal cylinder (227) towards one side of positioner feed end, the output of horizontal cylinder (227) and the side fixed connection of fixed part, two the equal fixed mounting of cylinder body of horizontal cylinder (227) has vertical cylinder (228), the output of vertical cylinder (228) sets up downwards, just the output of vertical cylinder (228) is all fixed mounting has length locating lever (229), install spacing cylinder (25) in mounting groove (24), spacing cylinder (25) are vertical setting, just the output of spacing cylinder (25) sets up, the output of spacing cylinder (25) is fixed with spacing (251), spacing (251) are used for carrying out spacing circuit at length direction to the board.
7. The automatic positioning and calibration device for a circuit board according to claim 4, wherein: the top of portal frame (222) is installed the mounting, the mounting is used for fixed circuit board that fixes a position, and the mounting is fixed cylinder (27), fixed sucking disc is installed to the output of fixed cylinder (27), and fixed sucking disc is used for fixed circuit board.
8. An automatic positioning and calibrating device for circuit board according to claim 2, wherein: the feeding assembly (23) comprises a feeding plate (231), the feeding plate (231) is fixedly arranged in an installation groove (24), a driving motor (232) is arranged on the feeding plate (231), a moving plate (233) is horizontally arranged at the top of the feeding plate (231), the driving motor (232) is used for driving the moving plate (233) to move, the moving plate (233) can reciprocate along the transmission direction, a moving cylinder (234) is vertically upwards arranged at the top of the moving plate (233), and a moving table (236) is arranged at the output end of the moving cylinder (234), and the moving table (236) is used for driving a circuit board to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322103814.5U CN220693402U (en) | 2023-08-05 | 2023-08-05 | Automatic positioning and calibrating device for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322103814.5U CN220693402U (en) | 2023-08-05 | 2023-08-05 | Automatic positioning and calibrating device for circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220693402U true CN220693402U (en) | 2024-03-29 |
Family
ID=90403409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322103814.5U Active CN220693402U (en) | 2023-08-05 | 2023-08-05 | Automatic positioning and calibrating device for circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220693402U (en) |
-
2023
- 2023-08-05 CN CN202322103814.5U patent/CN220693402U/en active Active
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