CN220755145U - Backing plate for drilling circuit board - Google Patents
Backing plate for drilling circuit board Download PDFInfo
- Publication number
- CN220755145U CN220755145U CN202322293518.6U CN202322293518U CN220755145U CN 220755145 U CN220755145 U CN 220755145U CN 202322293518 U CN202322293518 U CN 202322293518U CN 220755145 U CN220755145 U CN 220755145U
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- drilling
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- circuit board
- hole
- connecting rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 109
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to a backing plate for drilling a circuit board, belongs to the technical field of circuit board processing, and solves the technical problem that the backing plate for drilling is inconvenient to detach at present. The backing plate for drilling the circuit board comprises a bottom plate, wherein one side of the bottom plate is provided with mounting holes, the upper end surface of the bottom plate is provided with through holes which are uniformly distributed along the axis of the mounting holes, and the through holes are communicated with the mounting holes; the positioning strip is inserted into the mounting hole; one end of the first connecting rod is inserted into the through hole; the first trapezoid block is arranged at one end of the first connecting rod, which is positioned at the through hole, the positioning strip is provided with a dovetail groove, the dovetail groove is axially arranged along the positioning strip, the positioning strip is provided with vertical through grooves, the through grooves are in one-to-one correspondence with the through holes, and the inner wall of the dovetail groove is abutted with the two opposite sides of the first trapezoid block to fix the first connecting rod; the first drilling plate is arranged at the other end of the first connecting rod, which is positioned outside the through hole. Therefore, the backing plate for drilling the circuit board can facilitate the disassembly and the installation of the drilling plate, and is more convenient to use.
Description
Technical Field
The utility model belongs to the technical field of circuit board processing, and particularly relates to a backing plate for circuit board drilling.
Background
In the production process of the circuit board, a drilling machine is required to drill the circuit board, and in order to reduce the damage of the contact guide bit of the metal table surface of the drill bit in the drilling process, a backing plate made of nonmetal materials is required to be installed on the table surface of the drilling machine to protect the drill bit. The patent of application number CN201120268146.6 provides a backing plate for circuit board drilling, uses screw fixation backing plate in this patent, and when using screw fixation backing plate, it is inconvenient when dismantling and installing the backing plate, has reduced production efficiency.
Disclosure of Invention
The utility model provides a backing plate for drilling a circuit board, which is used for solving the technical problem that the backing plate for drilling is inconvenient to detach at present.
The utility model is realized by the following technical scheme: a backing plate for drilling a circuit board, comprising:
a mounting hole is formed in one side of the bottom plate, through holes which are uniformly distributed along the axis of the mounting hole are formed in the upper end face of the bottom plate, and the through holes are communicated with the mounting hole;
the positioning strip is inserted into the mounting hole and moves along the axis of the mounting hole;
one end of the first connecting rod is inserted into the through hole;
the first trapezoid block is arranged at one end of the first connecting rod, a dovetail groove is formed in the positioning strip, the dovetail groove is formed in the axial direction of the positioning strip and penetrates through two sides of the positioning strip, vertical through grooves are formed in the positioning strip and correspond to the through holes one by one, the through grooves are used for sliding relative to the dovetail groove through the first trapezoid block, and the inner wall of the dovetail groove is abutted to two opposite sides of the first trapezoid block so as to fix the first connecting rod;
the first drilling plate is arranged at the other end of the first connecting rod, which is positioned outside the through hole, and is used for placing a circuit board.
Optionally, the method further comprises:
and one end of the first spring is arranged at the bottom of the mounting hole, and the other end of the first spring is arranged at one end of the positioning strip positioned in the mounting hole.
Optionally, the method further comprises:
the locking assembly is arranged at one end of the locating strip, far away from the first spring, provided with a mounting groove, and is arranged in the mounting groove, and when the first connecting rod is inserted, the locking assembly is abutted with one side of the bottom plate to fix the locating strip.
Optionally, the locking assembly includes:
one end of the wedge-shaped block is rotatably arranged at one end of the mounting groove far away from the first spring;
the torsion spring is arranged in the mounting groove and is positioned at one end of the mounting groove away from the first spring, one side of the torsion spring is abutted to the bottom of the mounting groove, the other side of the torsion spring is abutted to the wedge block, and when the first connecting rod is inserted, the torsion spring pushes the wedge block to extend out of the mounting groove and is abutted to one side of the bottom plate so as to fix the positioning strip.
Optionally, the method further comprises:
one end of the second connecting rod is inserted into the through hole outside the first drilling plate;
the second trapezoid block is arranged on one end of the second connecting rod, which is positioned in the through hole, and slides relative to the dovetail groove so as to fix the second connecting rod;
the second drilling plate is arranged at the other end of the second connecting rod, which is positioned outside the through hole, and is used for placing the circuit board, and the end face of the second drilling plate, which is far away from the bottom plate, and the end face of the first drilling plate, which is far away from the bottom plate, are spliced to form a placing surface for placing the circuit board.
Optionally, the method further comprises:
the second spring, one side of the said bottom plate close to said first drilling plate has blind holes, one end of the said second spring is installed in said blind hole, the said blind hole is located outside said first drilling plate;
and the clamping plate is arranged at the other end of the second spring and is used for clamping the circuit board between the clamping plate and the first drilling plate.
Optionally, the method further comprises:
and one end of the guide rod is arranged on the clamping plate, the other end of the guide rod is slidably arranged in the blind hole, and the second spring is sleeved outside the guide rod.
Optionally, the positioning strip is cuboid, and the cross section of the mounting hole is rectangular.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a backing plate for drilling a circuit board, which comprises a bottom plate, a positioning strip, a first connecting rod, a first trapezoid block and a first drilling plate, wherein one side of the bottom plate is provided with a mounting hole, the upper end surface of the bottom plate is provided with through holes uniformly distributed along the axis of the mounting hole, the through holes are communicated with the mounting hole, and the positioning strip is inserted into the mounting hole and moves along the axis of the mounting hole; one end of the first connecting rod is inserted in the through hole, the first trapezoid block is arranged at one end of the first connecting rod, which is located at the through hole, the dovetail groove is formed in the positioning strip, the dovetail groove is formed in the axial direction of the positioning strip and penetrates through two sides of the positioning strip, the vertical through groove is formed in the positioning strip and is used for passing through the first trapezoid block, the first trapezoid block slides relative to the dovetail groove, the inner wall of the dovetail groove is abutted to two opposite sides of the first trapezoid block so as to fix the first connecting rod, the first drilling plate is arranged at the other end of the first connecting rod, which is located outside the through hole, and the first drilling plate is used for placing a circuit board.
Through the structure, when the first drilling plate is installed, the locating strips are inserted into the installation holes, so that the locating strips move along the axial direction of the installation holes, when the through holes are coaxial with the corresponding through grooves, the first drilling plate is placed on the bottom plate, the first trapezoid blocks extend into the through grooves along the axial direction of the through holes, the first connecting rods extend into the through holes, the first connecting rods limit the first drilling plate to move along the horizontal direction in the through holes, then the locating strips continue to move, the through grooves move out of the through holes, the top surfaces of the two sides of the first trapezoid blocks are abutted against the groove walls of the dovetail grooves, so that the first trapezoid blocks are limited to move along the vertical direction, and the first drilling plate is fixed on the bottom plate; when the first drilling plate is disassembled, the positioning strip is moved, the through groove is coaxial with the through hole opposite to the through groove, then the first drilling plate is removed, the first trapezoid block moves along the axial direction of the through hole, and the trapezoid block extends out of the through hole, so that the first drilling plate can be disassembled. Therefore, the backing plate for drilling the circuit board can be convenient to detach and install the first drilling plate for protecting the drill bit, and is more convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a backing plate for drilling a circuit board provided by the utility model;
fig. 2 is a cross-sectional view of a pad for drilling a circuit board provided by the utility model;
FIG. 3 is an enlarged schematic view of the area A in FIG. 2;
FIG. 4 is a schematic view of the structure of a base plate according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a positioning strip according to an embodiment of the present utility model;
FIG. 6 is a cross-sectional view of a spacer bar in an embodiment of the present utility model;
fig. 7 is a schematic view of the structure of the clamping plate in the embodiment of the present utility model.
In the figure:
1-a bottom plate; 101-mounting holes; 102-a through hole;
2-positioning strips; 201-a dovetail groove; 202-through grooves;
3-a first connecting rod;
4-a first trapezoidal block;
5-a first drilling plate;
6-a first spring;
7-a locking assembly; 71-wedge blocks; 72-torsion spring;
8-a second connecting rod;
9-a second trapezoidal block;
10-a second drilling plate;
11-a second spring;
12-clamping the plate;
13-guide bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
Examples
The utility model provides a backing plate for drilling a circuit board, which is used for solving the technical problem that the backing plate for drilling is inconvenient to detach at present. This backing plate for circuit board drilling includes bottom plate 1, location strip 2, head rod 3, first trapezoidal piece 4 and first drilling plate 5, wherein:
one side of the bottom plate 1 is provided with a mounting hole 101, the upper end surface of the bottom plate 1 is provided with through holes 102 uniformly distributed along the axis of the mounting hole 101, and the through holes 102 are coaxially arranged with the mounting hole 101 and are communicated with the mounting hole 101.
The locating strip 2 is inserted into the mounting hole 101, the mounting hole 101 is a square hole, the locating strip 2 is a square strip matched with the mounting hole 101, the circumferential outer wall of the square strip is abutted against the inner wall of the mounting hole 101, and the locating strip 2 moves along the axis of the mounting hole 101.
One end of the first connecting rod 3 is inserted into the through hole 102, the through hole 102 is a square hole, the first connecting rod 3 is a square rod matched with the through hole 102, and the circumferential outer wall of the first connecting rod 3 is abutted against the inner wall of the square hole, so that the first connecting rod 3 can be limited to move in the horizontal direction, and the first connecting rod 3 can be limited to rotate in the axial direction of the through hole 102.
The first trapezoid block 4 is fixedly arranged at one end of the first connecting rod 3, which is located at the through hole 102, through welding or integral forming and the like, the upper bottom surface and the lower bottom surface of the first trapezoid block 4 are square, the width of the upper bottom surface of the first trapezoid block 4 is smaller than that of the lower bottom surface, the width of the lower bottom surface of the first trapezoid block 4 is equal to that of the through hole 102, the dovetail groove 201 is formed in the positioning strip 2, the dovetail groove 201 is formed in the axial direction of the positioning strip 2 and penetrates through two sides of the positioning strip 2, vertical through grooves 202 are formed in the positioning strip 2, the through grooves 202 are in one-to-one correspondence with the through holes 102, the width of the through grooves 202 is equal to that of the lower bottom surface of the first trapezoid block 4, the through grooves 202 are used for enabling the first trapezoid block 4 to slide relative to the dovetail groove 201, the inner wall of the dovetail groove 201 is in butt joint with two opposite sides of the first trapezoid block 4, and accordingly the first connecting rod 3 is fixed, and the first fixing rod is prevented from being far away from the bottom plate 1 along the axial direction of the through hole 102.
The first drilling plate 5 is arranged at the other end of the first connecting rod 3 outside the through hole 102, the first connecting rod 3 is fixedly arranged at one side of the first drilling plate 5, which is close to the bottom plate 1, in a welding or bolting mode, and the first drilling plate 5 is used for placing a circuit board.
Through the structure, when the first drilling plate 5 is installed on the circuit board drilling base plate, the locating strips 2 are inserted into the installation holes 101, the locating strips 2 move along the axial direction of the installation holes 101, when the through holes 102 are coaxial with the corresponding through grooves 202, the first drilling plate 5 is placed on the base plate 1, the first trapezoid blocks 4 extend into the through grooves 202 along the axial direction of the through holes 102, the first connecting rods 3 extend into the through holes 102, the first drilling plate 5 is limited to move along the horizontal direction in the through holes 102, the locating strips 2 are continuously moved, the through grooves 202 move out of the through holes 102, the top surfaces of the two sides of the first trapezoid blocks 4 are abutted against the groove walls of the dovetail grooves 201, so that the first trapezoid blocks 4 are limited to move along the vertical direction, and the first drilling plate 5 is fixed on the base plate 1; when the first drilling plate 5 is dismounted, the positioning strip 2 is moved to enable the through groove 202 to be coaxial with the through hole 102 opposite to the through groove, then the first drilling plate 5 is dismounted, the first trapezoid block 4 is enabled to move along the axial direction of the through hole 102, and the trapezoid block extends out of the through hole 102, so that the dismounting of the first drilling plate 5 can be completed. Therefore, the backing plate for circuit board drilling can be convenient to detach and mount the first drilling plate 5 for protecting the drill bit, and is more convenient to use.
An alternative implementation of this embodiment is as follows: still include first spring 6, first spring 6 is the extension spring, and the one end fixed mounting of first spring 6 is in the bottom of mounting hole 101, and the other end installation fixed mounting is located the one end of mounting hole 101 at locating bar 2, after pulling locating bar 2 and inserting the trapezoidal piece, first spring 6 resets and pulls locating bar 2 to make dovetail 201 and the fixed drilling plate of trapezoidal piece butt.
An alternative implementation of this embodiment is as follows: still include locking subassembly 7, the mounting groove has been seted up to the one end that first spring 6 was kept away from to locating bar 2, and locking subassembly 7 installs in the mounting groove, before inserting head rod 3, pulls locating bar 2 and makes logical groove 202 and through-hole 102 coaxial, and locking subassembly 7 and one side butt in order to fix locating bar 2 of bottom plate 1 to prevent to continue to apply force to locating bar 2 when inserting head rod 3, more laborsaving during the use.
An alternative implementation of this embodiment is as follows: the locking assembly 7 comprises a wedge block 71 and a torsion spring 72, wherein:
one end of the wedge-shaped block 71 is hinged to the end of the mounting groove remote from the first spring 6, and the wedge-shaped block 71 is positioned in the mounting groove after the first connecting rod 3 is inserted.
The torsional spring 72 is installed in the mounting groove, and the torsional spring 72 is located the one end that the mounting groove kept away from first spring 6, and one side of torsional spring 72 is through mode fixed mounting such as bonding at the tank bottom of mounting groove, and the opposite side is through mode fixed mounting such as bonding on wedge 71, before inserting head rod 3, pulling locating strip 2 makes logical groove 202 coaxial with through-hole 102, simultaneously, and torsional spring 72 produces elasticity and promotes wedge 71 to keep away from the one end of articulated department and stretch out on mounting groove butt on bottom plate 1 to fixed locating strip 2.
An alternative implementation of this embodiment is as follows: also included are a second connecting rod 8, a second trapezoidal block 9 and a second drilling plate 10, wherein:
one end of the second connecting rod 8 is inserted into a through hole 102 positioned outside the first drilling plate 5, and the second connecting rod 8 and the first connecting rod 3 have the same size.
The second trapezoid block 9 is installed at one end of the second connecting rod 8 located in the through hole 102, the second trapezoid block 9 is identical to the first trapezoid block 4 in size, the second trapezoid block 9 slides relative to the dovetail groove 201, and the side face of the second trapezoid block 9 abuts against the dovetail groove 201 to fix the second trapezoid block 9, so that the second trapezoid block 9 is prevented from moving to the side far away from the bottom plate 1.
The second drilling plate 10 is installed and is kept away from the one end of trapezoidal piece at the second connecting rod 8, and the second drilling plate 10 is used for placing the circuit board, and the terminal surface that the bottom plate 1 was kept away from to the second drilling plate 10 and the terminal surface that the bottom plate 1 was kept away from to the first drilling plate 5 piece together form the face of placing that is used for placing the circuit board, and when leading to wherein first drilling plate 5 or second drilling plate 10 damage to the circuit board drilling like this, only need change first drilling plate 5 or second drilling plate 10 of damage, reduced the consumption to the drilling plate and used more conveniently.
An alternative implementation of this embodiment is as follows: also included are a second spring 11 and a clamping plate 12, wherein:
the blind hole has been seted up to the one side that bottom plate 1 is close to first drilling board 5 to second spring 11, and the one end fixed mounting of second spring 11 is in the blind hole bottom, and blind hole and second spring 11 all are equipped with four, and wherein arbitrary two blind holes are located first drilling board 5 outsides, and two other blind holes are located second drilling board 10 outsides, and second spring 11 and blind hole one-to-one.
The clamping plate 12 is arranged at the other end of the second spring 11, two clamping plates 12 are arranged in total, one clamping plate 12 is arranged on a spring positioned at the outer side of the first drilling plate 5, the other clamping plate 12 is arranged on a spring positioned at the outer side of the second drilling plate 10, the second spring 11 is a tension spring, before the circuit board is drilled, the circuit board is placed between the clamping plate 12 and the first drilling plate and the second drilling plate 10, and the spring pulls the clamping plate 12 to clamp the circuit board, so that the circuit board is fixed conveniently.
An alternative implementation of this embodiment is as follows: one end of a guide rod 13 is arranged on the clamping plate 12, the other end of the guide rod is slidably arranged in the blind hole, and a second spring 11 is sleeved outside the guide rod 13.
An alternative implementation of this embodiment is as follows: the clamping plate 12 is provided with a blind hole, one end of the clamping plate 12 is provided with a guide rod 13, the other end of the clamping plate 12 is slidably arranged in the blind hole, a second spring 11 is sleeved outside the guide rod 13, and the guide rod 13 is used for guiding the clamping plate 12, so that the possibility of deflection of the clamping plate 12 is reduced.
In summary, when the first drilling plate 5 and the second drilling plate 10 are installed on the circuit board drilling base plate, the positioning strip 2 is pulled to enable the positioning strip 2 to move along the axial direction of the installation hole 101, when the through hole 102 is coaxial with the corresponding through groove 202, the torsion spring 72 generates elastic force to push one end of the wedge-shaped block 71 away from the hinge to extend out of the installation groove to be abutted against the bottom plate 1, so as to fix the positioning strip 2, the first drilling plate 5 and the second drilling plate 10 are placed on the bottom plate 1, the first trapezoid block 4 and the second trapezoid block 9 are enabled to extend into the through groove 202 along the axial direction of the corresponding through hole 102, the first connecting rod 3 and the second connecting rod 8 extend into the corresponding through hole 102, the first connecting rod 3 and the second connecting rod 8 are limited to move along the horizontal direction in the corresponding through hole 102, the wedge-shaped block is put back into the installation groove, the first spring 6 resets to pull the positioning strip 2 to move out of the through groove 102, the top surfaces of the two sides of the first trapezoid block 4 and the second trapezoid block 9 are abutted against the top surfaces of the through groove 102, so that the first trapezoid block 4 and the second trapezoid block 9 are limited to move along the first trapezoid block 4 and the second trapezoid block 10 along the vertical direction of the first drilling plate 1 and the second trapezoid block 9; when the first drilling plate 5 and the second drilling plate 10 are dismounted, the positioning strip 2 is moved to enable the through groove 202 to be coaxial with the corresponding through hole 102, then the first drilling plate 5 and the second drilling plate 10 are dismounted, the first trapezoid block 4 and the second trapezoid block 9 are enabled to move along the axial direction of the through hole 102, and the first trapezoid block 4 and the second trapezoid block extend out of the through hole 102, so that the first drilling plate 5 and the second drilling plate 10 can be dismounted. Therefore, the backing plate for circuit board drilling can facilitate the disassembly and the assembly of the first drilling plate 5 and the second drilling plate 10, and is more convenient to use.
The above description is merely an embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and it is intended to cover the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. A backing plate for drilling a circuit board, comprising:
a mounting hole is formed in one side of the bottom plate, through holes which are uniformly distributed along the axis of the mounting hole are formed in the upper end face of the bottom plate, and the through holes are communicated with the mounting hole;
the positioning strip is inserted into the mounting hole and moves along the axis of the mounting hole;
one end of the first connecting rod is inserted into the through hole;
the first trapezoid block is arranged at one end of the first connecting rod, a dovetail groove is formed in the positioning strip, the dovetail groove is formed in the axial direction of the positioning strip and penetrates through two sides of the positioning strip, vertical through grooves are formed in the positioning strip and correspond to the through holes one by one, the through grooves are used for sliding relative to the dovetail groove through the first trapezoid block, and the inner wall of the dovetail groove is abutted to two opposite sides of the first trapezoid block so as to fix the first connecting rod;
the first drilling plate is arranged at the other end of the first connecting rod, which is positioned outside the through hole, and is used for placing a circuit board.
2. The pad for drilling a circuit board according to claim 1, further comprising:
and one end of the first spring is arranged at the bottom of the mounting hole, and the other end of the first spring is arranged at one end of the positioning strip positioned in the mounting hole.
3. The pad for drilling a circuit board according to claim 2, further comprising:
the locking assembly is arranged at one end of the locating strip, far away from the first spring, provided with a mounting groove, and is arranged in the mounting groove, and when the first connecting rod is inserted, the locking assembly is abutted with one side of the bottom plate to fix the locating strip.
4. A pad for drilling a circuit board according to claim 3, wherein the locking assembly comprises:
one end of the wedge-shaped block is rotatably arranged at one end of the mounting groove far away from the first spring;
the torsion spring is arranged in the mounting groove and is positioned at one end of the mounting groove away from the first spring, one side of the torsion spring is abutted to the bottom of the mounting groove, the other side of the torsion spring is abutted to the wedge block, and when the first connecting rod is inserted, the torsion spring pushes the wedge block to extend out of the mounting groove and is abutted to one side of the bottom plate so as to fix the positioning strip.
5. The pad for drilling a circuit board according to claim 1, further comprising:
one end of the second connecting rod is inserted into the through hole outside the first drilling plate;
the second trapezoid block is arranged on one end of the second connecting rod, which is positioned in the through hole, and slides relative to the dovetail groove so as to fix the second connecting rod;
the second drilling plate is arranged at the other end of the second connecting rod, which is positioned outside the through hole, and is used for placing the circuit board, and the end face of the second drilling plate, which is far away from the bottom plate, and the end face of the first drilling plate, which is far away from the bottom plate, are spliced to form a placing surface for placing the circuit board.
6. The pad for drilling a circuit board according to claim 1, further comprising:
the second spring, one side of the said bottom plate close to said first drilling plate has blind holes, one end of the said second spring is installed in said blind hole, the said blind hole is located outside said first drilling plate;
and the clamping plate is arranged at the other end of the second spring and is used for clamping the circuit board between the clamping plate and the first drilling plate.
7. The pad for drilling a circuit board of claim 6, further comprising:
and one end of the guide rod is arranged on the clamping plate, the other end of the guide rod is slidably arranged in the blind hole, and the second spring is sleeved outside the guide rod.
8. The backing plate for drilling a circuit board according to claim 1, wherein the positioning strips are rectangular, and the cross section of the mounting hole is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293518.6U CN220755145U (en) | 2023-08-24 | 2023-08-24 | Backing plate for drilling circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293518.6U CN220755145U (en) | 2023-08-24 | 2023-08-24 | Backing plate for drilling circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220755145U true CN220755145U (en) | 2024-04-09 |
Family
ID=90559463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322293518.6U Active CN220755145U (en) | 2023-08-24 | 2023-08-24 | Backing plate for drilling circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220755145U (en) |
-
2023
- 2023-08-24 CN CN202322293518.6U patent/CN220755145U/en active Active
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