CN118564539B - Combined rivet for positioning drilling holes of circuit board - Google Patents
Combined rivet for positioning drilling holes of circuit board Download PDFInfo
- Publication number
- CN118564539B CN118564539B CN202411049350.7A CN202411049350A CN118564539B CN 118564539 B CN118564539 B CN 118564539B CN 202411049350 A CN202411049350 A CN 202411049350A CN 118564539 B CN118564539 B CN 118564539B
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- clamping groove
- joint
- pipe body
- circuit board
- rivet
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- 238000005553 drilling Methods 0.000 title claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003801 milling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A combined rivet for drilling and positioning a circuit board belongs to the technical field of fixing members for manufacturing the circuit board, and comprises the following components: pipe body, upper joint and lower joint. The pipe body is provided with a notch, the two sides of the notch are provided with bending plates inside the pipe body, the pipe body is elastic, and the outer diameter of the pipe body is D when the pipe body is in a natural state; an upper clamping groove is formed in one side of the upper joint, and a connecting pipe is arranged at the bottom of the upper joint; a lower clamping groove is formed in one side of the lower joint, and a connecting rod is arranged at the top of the lower joint and penetrates through the connecting pipe; the upper joint and the lower joint are respectively arranged at two ends of the pipe body; when the combined rivet is in a combined state, the upper connector and the lower connector are respectively inserted into two ends of the pipe body, two ends of the two bending plates are respectively clamped into the upper clamping groove and the lower clamping groove, at the moment, the outer diameter of the pipe body is D, D is smaller than D, the inner diameter of the circuit board positioning hole is S, and D is smaller than S. The scheme can effectively prevent the circuit board around the positioning hole from being extruded with cracks, can be reused, and is convenient to assemble and take.
Description
Technical Field
The invention belongs to the technical field of fixing members for manufacturing circuit boards, and particularly relates to a combined rivet for drilling and positioning a circuit board.
Background
In the hole milling process of the multilayer circuit board, positioning holes are required to be processed on each layer of circuit board in advance, and then the multilayer circuit board is connected into a whole by utilizing positioning rivets or positioning pins to pass through corresponding positioning holes on the laminated multilayer circuit board, so that relative displacement between the circuit boards in hole milling is prevented, and the position accuracy of the hole milling of the circuit board is influenced.
At present, a solid-structure pin or rivet is generally adopted to fix a circuit board, in order to ensure the fixing effect and prevent the pin or rivet from falling off, the pin and the rivet are generally in interference connection with a positioning hole of the circuit board during fixing, and the pin or the rivet is inserted into the positioning hole by using a pressure device or a knocking tool, so that cracks are easily generated at the periphery of the positioning hole of the circuit board, and the circuit board is damaged; the pin and the rivet are difficult to take out, when the pin is taken out, the end part of the pin needs to be aligned accurately by using the ejector pin, and then the ejector pin is extruded by using the pressure device or is knocked by using the knocking tool, so that the pin can be taken out from the circuit board; when the rivet is taken out, the end part of the rivet needs to be removed by using a polishing or shearing tool, and then the rest rivet can be taken out by using the thimble, so that the existing rivet and the pin taking out process are complex, the rivet cannot be reused, and the consumption is large in the drilling production of the circuit board.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the combined rivet for drilling and positioning the circuit board, which can effectively prevent the circuit board around the positioning hole from being extruded with cracks, can be reused and is convenient to assemble and take.
In order to achieve the object of the invention, the following scheme is adopted:
A combination rivet for locating a hole drilled in a circuit board, comprising: pipe body, upper joint and lower joint.
One side of the pipe body is provided with a notch parallel to the axis, two sides of the notch are provided with bending plates towards the inside of the pipe body, the pipe body is elastic, the outer diameter of the pipe body is D when the pipe body is in a natural state, and a space is reserved between the two bending plates;
An upper clamping groove parallel to the axis is formed in one side of the upper joint, and a connecting pipe is coaxially arranged at the bottom of the upper joint;
one side of the lower joint is provided with a lower clamping groove parallel to the axis, the width of the lower clamping groove is the same as that of the upper clamping groove, the widths of the lower clamping groove are larger than the thicknesses of the two bending plates, the top of the lower joint is coaxially provided with a connecting rod, and the connecting rod penetrates through the connecting pipe;
The upper joint and the lower joint are cylinders with the same diameter, and are respectively arranged at two ends of the pipe body;
When the combined rivet is in a combined state, one ends of the upper joint and the lower joint, which are opposite, are respectively inserted into the pipe body, two ends of the two bending plates are respectively clamped in the upper clamping groove and the lower clamping groove, and the inner wall of the pipe body is contacted with the outer walls of the upper joint and the lower joint; at this time, the outer diameter of the tube body is D, D is smaller than D, the inner diameter of the circuit board positioning hole is S, and D is less than S and is less than D.
The invention has the beneficial effects that:
1. when the automatic pipe opening device is assembled, the automatic pipe opening body is utilized to compress and fix the positioning hole, excessive extrusion of the side wall of the positioning hole is avoided, and therefore the peripheral part of the positioning hole can be effectively prevented from being fractured.
2. The folding and unfolding states of the pipe body can be controlled by moving the upper joint and the lower joint, so that the assembling and disassembling of the combined rivet are more convenient.
3. The outer diameter difference between the folded state and the unfolded state of the pipe body is utilized, so that the combined rivet can be suitable for positioning holes with more aperture specifications.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 shows an exploded view of the structure of a preferred embodiment of the present application.
Fig. 2 is an external configuration view showing a combined state of the combination rivet of the present application.
Fig. 3 shows a sectional view of the combination rivet according to the application in the combined state.
Fig. 4 shows a projection view on the lower joint in the assembled state of the set rivet of the present application.
Fig. 5 shows a preferred connection structure of the upper and lower connectors of the present application.
Fig. 6 shows a partial enlarged view at a in fig. 5.
Figure 7 shows a cross-sectional view of the combination rivet of the present application as it is unlocked.
Fig. 8 shows a partial enlarged view at B in fig. 7.
Fig. 9 is a schematic view showing a state in which the set rivet of the present application is set.
Figure 10 shows a cross-sectional view of the set rivet of the present application in position.
Fig. 11 shows a projection view of the set rivet of the present application on the lower joint as it is being positioned.
The marks in the figure: the pipe body-1, the bending plate-11, the upper joint-2, the upper clamping groove-201, the through hole-202, the connecting pipe-21, the pin hole-211, the limiting hole-212, the auxiliary spring-22, the lower joint-3, the lower clamping groove-301, the connecting rod-31, the counter bore-311, the bolt-32, the boss-321, the avoiding groove-322, the supporting spring-33 and the unlocking tool-4.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
As shown in fig. 1 to 11, a combination rivet for positioning holes in a circuit board includes: a pipe body 1, an upper joint 2 and a lower joint 3.
Specifically, a notch parallel to the axis is formed in one side of the pipe body 1, bending plates 11 are arranged in the two sides of the notch and are arranged in the pipe body 1, the pipe body 1 has elasticity, the outer diameter of the pipe body 1 is D when the pipe body is in a natural state, and an interval is formed between the two bending plates 11. The pipe body 1 is made of metal or plastic.
Specifically, an upper clamping groove 201 parallel to the axis is formed on one side of the upper joint 2, and a connecting pipe 21 is coaxially arranged at the bottom of the upper joint 2.
Specifically, a lower clamping groove 301 parallel to the axis is formed on one side of the lower connector 3, the width of the lower clamping groove is the same as that of the upper clamping groove 201, and the widths of the lower clamping groove and the upper clamping groove are both larger than the thickness of the two bending plates 11, a connecting rod 31 is coaxially arranged at the top of the lower connector 3, and the upper part of the connecting rod is arranged at the lower part of the connecting pipe 21 in a penetrating manner.
Specifically, the upper joint 2 and the lower joint 3 are cylinders with the same diameter, and the upper joint 2 and the lower joint 3 are respectively arranged at two ends of the pipe body 1.
As shown in fig. 2 to 4, in the assembled state, one end of the upper joint 2 opposite to the lower joint 3 is respectively inserted into the pipe body 1, two ends of the two bending plates 11 are respectively clamped into the upper clamping groove 201 and the lower clamping groove 301, and the inner wall of the pipe body 1 is contacted with the outer walls of the upper joint 2 and the lower joint 3; at this time, the outer diameter of the tube body 1 is D, D is smaller than D, the inner diameter of the circuit board positioning hole is S, and D < S < D.
The connecting rod 31 is connected with the connecting pipe 21, so that the upper joint 2 and the lower joint 3 can be ensured to be coaxial, and the outer cylindrical surfaces of the upper joint 2 and the lower joint 3 are aligned, so that the outer wall of the pipe body 1 in a combined state is ensured to have a regular cylindrical structure, and the combined rivet can conveniently pass through the positioning hole.
When in use, a plurality of circuit boards are overlapped at first, and the positioning holes are aligned one by one. And taking the combined rivet in the combined state to pass through the positioning holes on the overlapped multi-layer circuit board, so that the two ends of the tube body 1 respectively protrude out of the top surface and the bottom surface of the overlapped circuit board. Then, the upper joint 2 and the lower joint 3 are moved toward both ends of the pipe body 1, respectively, so that the upper joint 2 and the lower joint 3 are separated from the pipe body 1, and the bending plate 11 is separated from the upper clamping groove 201 and the lower clamping groove 301. After the bending plate 11 is separated from the upper clamping groove 201 and the lower clamping groove 301, the pipe body 1 automatically opens outwards under the action of self elastic force until the outer wall of the pipe body 1 is attached to the inner wall of the positioning hole. Because the outer diameter of the pipe body 1 is larger than the inner diameter of the positioning hole when in a natural state, the pipe body 1 after being automatically opened compresses the positioning hole wall by utilizing the self elastic force so as to achieve the purpose of positioning, and the mode can avoid fracturing the circuit board.
As a way of moving the upper joint 2 and the lower joint 3 to the two ends of the pipe body 1, screw holes are formed at the two ends of the upper joint 2 and the lower joint 3, and a drawing tool with a screw is connected by the screw holes, so that the upper joint 2 and the lower joint 3 can be easily moved to the outer end of the pipe body 1.
As another implementation mode for moving the upper joint 2 and the lower joint 3 towards the two ends of the pipe body 1, when the combined rivet is in a combined state, the outer ends of the upper joint 2 and the lower joint 3 are reserved with a section protruding outside the pipe body 1 so as to clamp the protruding parts by hands or pliers, and therefore the purpose of moving the upper joint 2 and the lower joint 3 towards the outer end of the pipe body 1 is achieved.
As a preferable scheme, after the bending plate 11 is separated from the upper clamping groove 201 and the lower clamping groove 301, the connecting rod 31 still penetrates through the connecting pipe 21, and the upper joint 2 and the lower joint 3 are respectively positioned outside the two ends of the pipe body 1, so that the combined rivet can be conveniently taken out for use; further preferred structure, the side wall of connecting pipe 21 has seted up the bar hole along the axis direction, and a screw or bayonet lock is worn to be equipped with by the lateral wall of connecting rod 31, and the outer tip of screw or bayonet lock slides and locates the bar downthehole to prevent connecting rod 31 and connecting pipe 21 separation, can also satisfy the demand of upper joint 2 and lower joint 3 relative movement simultaneously.
As another preferable embodiment, after the bending plate 11 is separated from the upper and lower clamping grooves 201 and 301, the upper and lower joints 2 and 3 are detached from the pipe body 1 and reused when the pipe body 1 is removed.
The combined rivet is taken out in the following way:
the upper joint 2 and the lower joint 3 are detached from the pipe body 1, and the upper joint 2 and the lower joint 3 are respectively arranged at two ends of the pipe body 1 in a penetrating way, so that the connecting rod 31 is connected with the connecting pipe 21; then, the two ends of the two bending plates 11 are aligned with the upper clamping groove 201 and the lower clamping groove 301 respectively, the upper joint 2 and the lower joint 3 are pressed towards the middle of the pipe body 1 at the last time, the upper clamping groove 201 and the lower clamping groove 301 can be utilized to simultaneously fold the two bending plates 11 towards the middle, the two bending plates 11 are clamped in the upper clamping groove 201 and the lower clamping groove 301, at the moment, the inner wall of the pipe body 1 is contacted with the outer walls of the upper joint 2 and the lower joint 3, at the moment, the outer diameter of the pipe body 1 is restored to d, and at the moment, the outer diameter of the pipe body 1 is smaller than the inner diameter of the positioning hole of the circuit board, so that the combined rivet can be easily taken out from the positioning hole, and at the moment, the combined rivet is restored to a combined state, and the next time is convenient to use directly.
If the connecting rod 31 still penetrates through the connecting pipe 21 after positioning, the upper joint 2 and the lower joint 3 are respectively positioned outside the two ends of the pipe body 1; when the combined rivet is taken out, two ends of the two bending plates 11 are aligned with the upper clamping groove 201 and the lower clamping groove 301 respectively, and then the upper joint 2 and the lower joint 3 are directly pressed towards the middle part of the pipe body 1 at the same time.
Above-mentioned scheme not only can guarantee good location effect, can prevent effectively moreover that the peripheral circuit board of locating hole from cracking, can also used repeatedly to it is more convenient to install and pick up.
Preferably, as shown in fig. 1 and 9, the lower end of the upper clamping groove 201 penetrates through the bottom surface of the upper joint 2, and a physical space is formed between the top surface of the upper clamping groove 201 and the top surface of the upper joint 2; the upper end of the lower clamping groove 301 penetrates through the top surface of the lower connector 3, and a physical space is reserved between the bottom surface of the lower clamping groove 301 and the bottom surface of the lower connector 3. The structure can enable the outer end parts of the upper joint 2 and the lower joint 3 to protrude outside the pipe body 1 when the combined rivet is in a combined state, so that the upper joint 2 and the lower joint 3 can be conveniently moved outwards when being positioned by hand or pliers for clamping. When the upper joint 2 and the lower joint 3 are pressed towards the middle of the pipe body 1, the upper joint 2 and the lower joint 3 are difficult to ensure to synchronously move towards the middle of the pipe body 1, and one of the upper joint 2 and the lower joint 3 is necessarily inserted into the pipe body 1 firstly; if the upper clamping groove 201 penetrates through two ends of the upper joint 2 and the lower clamping groove 301 penetrates through two ends of the lower joint 3, then the worst case is that after any one of the upper joint 2 and the lower joint 3 is completely inserted into the pipe body 1, the other joint does not enter the pipe body 1 yet, so that the notch at one end of the pipe body 1 is easily enlarged, and the notch at the other end is correspondingly further reduced, so that the joint which is not inserted into the pipe body 1 is more difficult to insert. The top surface of the upper clamping groove 201 and the top surface of the upper connector 2 are provided with a physical space, and the bottom surface of the lower clamping groove 301 and the bottom surface of the lower connector 3 are provided with a physical space, wherein the physical space can be used for resisting the end surface of the pipe body 1, and any connector can be prevented from being completely inserted into the pipe body 1 for the first time, so that the upper connector 2 and the lower connector 3 can be smoothly inserted into the pipe body 1.
Preferably, as shown in fig. 3 to 11, the top of the connecting rod 31 is provided with a counter bore 311, the side wall of which is penetrated with a pair of bolts 32, a supporting spring 33 is arranged between the two bolts 32, and when the supporting spring 33 is in an extended state, the outer ends of the two bolts 32 protrude from the outer wall of the connecting rod 31.
The top surfaces of two opposite ends of bolt 32 all are equipped with boss 321, and one side that boss 321 top was towards corresponding bolt 32 outer end is the inclined plane structure, sets up boss 321 accessible its and counter bore 311 inner wall butt to prevent bolt 32 from popping out from counter bore 311 lateral wall.
The lateral wall of connecting pipe 21 upper end has been seted up and is used for two pinhole 211 that are connected respectively with two bolts 32, and when bolt 32 inserted in locating corresponding pinhole 211, the combination rivet is in the combination state to lock upper joint 2 and lower joint 3, so as to prevent that upper joint 2 and lower joint 3 and body 1 separate when the combination rivet is in the combination state, in order to guarantee the stability of combination rivet combination state.
The upper joint 2 is coaxially provided with a through hole 202 for penetrating the unlocking tool 4, and the unlocking tool 4 is of a circular tube structure or of a rod body structure with a circular hole/conical hole at the bottom; when the supporting spring 33 is in the extended state, the upper ends of the inclined structures of the two bosses 321 are both located in the projection range of the inner hole of the circular tube structure along the axis of the connecting rod 31 or in the projection range of the round hole/conical hole of the rod body structure along the axis of the connecting rod 31.
When the unlocking mode of the combined rivet is used, the combined rivet is inserted into the positioning hole, then the unlocking tool 4 is inserted into the through hole 202, the unlocking tool 4 is taken as a circular tube structure for illustration, the lower edge of the inner hole of the circular tube is used for being in contact with the inclined surface structures of the two bosses 321, then the circular tube is continuously pressed towards the connecting rod 31, under the action of the inclined surface structures of the lower edge of the inner hole of the circular tube and the bosses 321, the two bolts 32 are simultaneously folded towards the middle part of the counter bore 311, the supporting springs 33 are compressed, the outer ends of the bolts 32 are pulled out from the corresponding pin holes 211, then the upper connector 2 and the lower connector 3 can be moved towards the two ends of the tube body 1, so that the unlocking purpose is achieved, and when the upper connector 2 and the lower connector 3 are separated from the tube body 1, the tube body 1 can be automatically opened, and the purpose of positioning a circuit board is achieved.
Preferably, as shown in fig. 6, a side of the boss 321 facing the outer end of the corresponding latch 32 is a conical surface so as to better match with the unlocking tool 4.
Further preferably, as shown in fig. 6 and 8, opposite sides of the two pins 32 are provided with avoiding grooves 322 for accommodating the supporting springs 33, so that the size of the pins 32 after being folded is more compact, and the requirement on the inner diameter size of the counter bore 311 is reduced.
Preferably, as shown in fig. 3, 5 to 8 and 10, an auxiliary spring 22 is provided in the connecting tube 21 and is pressed between the bottom surface of the upper joint 2 and the top surface of the connecting rod 31, the inner diameter of the auxiliary spring 22 is greater than or equal to the through hole 202, so that the unlocking tool 4 passes through, and when the combined rivet is in a combined state, the auxiliary spring 22 is in a compressed state, so that after the combined rivet is unlocked, the upper joint 2 and the lower joint 3 can automatically move towards the two ends of the tube body 1 under the action of the elasticity of the auxiliary spring 22, and the installation process of the combined rivet is easier and more convenient.
As a preferable solution, as shown in fig. 3, 5, 7 and 10, two limiting holes 212 for connecting with two pins 32 are formed on the side wall of the lower end of the connecting tube 21, and when the pins 32 are inserted into the corresponding limiting holes 212, the upper clamping groove 201 and the lower clamping groove 301 are separated from the bending plate 11, so that the upper joint 2, the lower joint 3 and the tube 1 of the combined rivet always maintain an integral structure, so as to be convenient for use and storage.
Preferably, as shown in fig. 1, 4 and 11, both sides of the lower end of the upper clamping groove 201 and both sides of the upper end of the lower clamping groove 301 have chamfer structures so as to be connected with the bending plate 11.
The foregoing description of the preferred embodiments of the invention is merely exemplary and is not intended to be exhaustive or limiting of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (5)
1. A combination rivet for locating a hole drilled in a circuit board, comprising:
the pipe body (1) is provided with a notch parallel to the axis on one side, bending plates (11) are arranged in the two sides of the notch on the inside of the pipe body (1), the pipe body (1) has elasticity, the outer diameter of the pipe body (1) is D when the pipe body is in a natural state, and a space is reserved between the two bending plates (11);
An upper joint (2), one side of which is provided with an upper clamping groove (201) parallel to the axis, and the bottom of the upper joint (2) is coaxially provided with a connecting pipe (21);
a lower clamping groove (301) parallel to the axis is formed in one side of the lower joint (3), the width of the lower clamping groove is the same as that of the upper clamping groove (201), the widths of the lower clamping groove are larger than the thicknesses of the two bending plates (11), and a connecting rod (31) is coaxially arranged at the top of the lower joint (3) and penetrates through the connecting pipe (21);
the upper joint (2) and the lower joint (3) are cylinders with the same diameter, and the upper joint (2) and the lower joint (3) are respectively arranged at two ends of the pipe body (1);
When the combined rivet is in a combined state, one end of the upper joint (2) opposite to the lower joint (3) is respectively inserted into the pipe body (1), two ends of the two bending plates (11) are respectively clamped in the upper clamping groove (201) and the lower clamping groove (301), and the inner wall of the pipe body (1) is in contact with the outer walls of the upper joint (2) and the lower joint (3); at the moment, the outer diameter of the tube body (1) is D, D is smaller than D, the inner diameter of the circuit board positioning hole is S, and D is smaller than S;
The lower end of the upper clamping groove (201) penetrates through the bottom surface of the upper joint (2), and an entity interval is formed between the top surface of the upper clamping groove (201) and the top surface of the upper joint (2); the upper end of the lower clamping groove (301) penetrates through the top surface of the lower connector (3), and a physical interval is formed between the bottom surface of the lower clamping groove (301) and the bottom surface of the lower connector (3);
A counter bore (311) is formed in the top of the connecting rod (31), a pair of bolts (32) are arranged along the side wall of the counter bore in a penetrating manner, a supporting spring (33) is arranged between the two bolts (32), and when the supporting spring (33) is in an extending state, the outer ends of the two bolts (32) protrude out of the outer wall of the connecting rod (31);
the top surfaces of the opposite ends of the two bolts (32) are respectively provided with a boss (321), and one side of the top of each boss (321) facing the outer end of the corresponding bolt (32) is of an inclined surface structure;
Two pin holes (211) respectively connected with two bolts (32) are formed in the side wall of the upper end of the connecting pipe (21), and when the bolts (32) are inserted into the corresponding pin holes (211), the combined rivet is in a combined state;
The upper joint (2) is coaxially provided with a through hole (202) for penetrating an unlocking tool (4), the unlocking tool (4) is of a circular tube structure or a rod body structure, and the bottom of the rod body is provided with a circular hole or a conical hole;
When the supporting spring (33) is in an extending state, the upper ends of the inclined structures of the two bosses (321) are positioned in the projection range of the inner hole of the circular tube, the round hole or the conical hole of the rod body in the axis of the connecting rod (31);
an auxiliary spring (22) is arranged in the connecting pipe (21), is pressed between the bottom surface of the upper joint (2) and the top surface of the connecting rod (31), the inner diameter of the auxiliary spring (22) is larger than or equal to that of the through hole (202), and the auxiliary spring (22) is in a compressed state when the combined rivet is in a combined state;
both sides of the lower end of the upper clamping groove (201) and both sides of the upper end of the lower clamping groove (301) are provided with chamfer structures.
2. The combined rivet for positioning drilling holes on a circuit board according to claim 1, wherein one side of the boss (321) facing the outer end of the corresponding plug pin (32) is a conical surface.
3. The composite rivet for locating a hole drilled in a circuit board according to claim 1, wherein the opposite sides of the two pins (32) are provided with a relief groove (322) for receiving a supporting spring (33).
4. The combination rivet for positioning of circuit board drilling according to claim 1, characterized in that the side wall of the lower end of the connecting pipe (21) is provided with two limit holes (212) respectively connected with two bolts (32), and when the bolts (32) are inserted into the corresponding limit holes (212), the upper clamping groove (201) and the lower clamping groove (301) are separated from the bending plate (11).
5. A combination rivet for locating a hole in a circuit board according to claim 1, wherein the tube body (1) is made of metal or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411049350.7A CN118564539B (en) | 2024-08-01 | 2024-08-01 | Combined rivet for positioning drilling holes of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411049350.7A CN118564539B (en) | 2024-08-01 | 2024-08-01 | Combined rivet for positioning drilling holes of circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118564539A CN118564539A (en) | 2024-08-30 |
| CN118564539B true CN118564539B (en) | 2024-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411049350.7A Active CN118564539B (en) | 2024-08-01 | 2024-08-01 | Combined rivet for positioning drilling holes of circuit board |
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| CN (1) | CN118564539B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378474A (en) * | 2010-08-26 | 2012-03-14 | 张方荣 | Fixing rivet used for circuit board |
| CA2985921A1 (en) * | 2016-11-18 | 2018-05-18 | Wabash National, L.P. | Hollow shank rivet and rivet coupling method |
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|---|---|---|---|---|
| JP2000170724A (en) * | 1998-12-02 | 2000-06-20 | Dainippon Printing Co Ltd | Plastic rivet and fixing method using the same |
| CN2553162Y (en) * | 2002-07-05 | 2003-05-28 | 凯崴电子股份有限公司 | Fixing rivets for circuit board pressing with improved structure |
| DE102005052360B4 (en) * | 2005-11-02 | 2008-07-24 | Böllhoff Verbindungstechnik GmbH | Punch rivet |
| JP4740219B2 (en) * | 2007-11-14 | 2011-08-03 | 株式会社土田製作所 | Pipe connection structure |
| BR202014026188U2 (en) * | 2014-10-20 | 2015-12-15 | Ancora Chumbadores Ltda | constructive arrangement applied to mechanical expansion fastener for metal or similar structures |
| JP6627683B2 (en) * | 2016-07-29 | 2020-01-08 | 住友電装株式会社 | Electrical equipment |
| CN219499648U (en) * | 2023-03-15 | 2023-08-08 | 遂宁鑫峰科技有限公司 | High-precision positioning device for drilling holes on circuit board |
-
2024
- 2024-08-01 CN CN202411049350.7A patent/CN118564539B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378474A (en) * | 2010-08-26 | 2012-03-14 | 张方荣 | Fixing rivet used for circuit board |
| CA2985921A1 (en) * | 2016-11-18 | 2018-05-18 | Wabash National, L.P. | Hollow shank rivet and rivet coupling method |
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| Publication number | Publication date |
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| CN118564539A (en) | 2024-08-30 |
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