PCB (Printed Circuit Board) swelling riveting equipment

Abstract

The utility model relates to PCB (Printed Circuit Board) expansion riveting equipment, belonging to the field of PCB equipment tooling. The equipment comprises a punch mechanism, a fixing mechanism and a bottom plate, the punch mechanism is vertically fixed on the bottom plate; the upper end surface of the bottom plate is a plane for placing the fixing mechanism; the punch mechanism moves from top to bottom to make contact with the fixing mechanism and exert pressure. The PCB expansion riveting device is composed of the fixing mechanism and the punch mechanism, the structure is simple, operation is convenient, an operator can use the PCB expansion riveting device after training, the operator only needs to rotate a rotating handle of the punch mechanism, a stud is fixed reliably, deflection is avoided, solder paste is not needed, the appearance is not affected, and environmental pollution is avoided; in addition, the method is high in working efficiency, one stud is fixed every time the rotating handle rotates, the labor cost can be reduced, and noise and vibration damage caused by machining are avoided.

Description

Technical Field

[0001] The utility model relates to a PCB board expansion and riveting device, belonging to the field of PCB board equipment tooling. Background Art

[0002] With the continuous development of society, people have higher requirements on the appearance and use of products, so the requirements for the assembly of PCB boards are becoming more and more stringent. Due to the processing cost and size requirements of some equipment, studs need to be fixed on the PCB board before assembly. The existing PCB board stud fixing method mainly uses solder paste welding. This method has the disadvantages of stud damage, assembly spacing deviation, assembly deviation, and solder accumulation at the welding point affecting the appearance. In addition, this method is only suitable for R&D prototypes or products with small batches, and has the disadvantages of long time consumption, low efficiency, and increased cost.

[0003] Patent application CN 212469469 U, with the authorization announcement date of 2021.02.05, discloses a new type of non-loose rivet fixture, including an upper die unit and a lower die unit, etc. The upper die unit is connected by one end of a connecting rod, and the other end of the connecting rod is connected to a sleeve. The rivet spring is connected to the upper end of the rivet punch. The rivet punch is hollow. The rivet spring and the rivet punch are located inside the rivet punch. Such an operation structure is complex, and the upper die unit and the lower die unit have high requirements for coordination. If there is a problem in one of the links, the entire system will be unusable, and the maintenance and use costs are high. Patent application CN 209139740 U, ​​with the authorization announcement date of 2019.07.23, discloses a nut rivet fixture, including an upper die unit and a lower die unit, etc. One end of the rivet upper die set is a pointed head row, which is used to rivet nuts. Although the mechanism is simple to operate, it has low work efficiency and can only rivet one nut at a time. The accuracy is greatly affected by the operator's level and the reliability is low.

[0004] Using mechanical equipment to rivet studs will generate a lot of noise and vibration, which is harmful to the human body; using solder paste to weld studs will cause deflection, the solder paste affects the appearance and causes environmental pollution, so workers need to be exposed to solder paste for a long time, which is less safe. In addition, this method requires long-term welding, which is time-consuming and labor-intensive, and can only weld one stud at a time, which is inefficient. Utility Model Content

[0005] The utility model provides a PCB board expansion riveting device. In order to overcome the shortcomings of stud damage, assembly spacing deviation, assembly deviation, solder accumulation at welding points, long time consumption, low efficiency, increased cost, noise and vibration caused by other methods of expansion riveting studs, a PCB board expansion riveting fixture device and a punch with simple structure, convenient operation and high efficiency are provided. The device will not produce deflection, does not need solder paste, has low maintenance cost and is easy to operate.

[0006] The utility model adopts the following technical solutions:

[0007] A PCB board expansion riveting device comprises a punch mechanism, a fixing mechanism and a bottom plate; the punch mechanism is vertically fixed on the bottom plate; the upper surface of the bottom plate is a plane for placing the fixing mechanism; the punch mechanism moves from top to bottom to contact the fixing mechanism and exert pressure.

[0008] The PCB board expansion riveting equipment described in the utility model, the punch mechanism includes a vertical rod, a fixing plate, a guide rod, a connecting elbow, and a turning handle;

[0009] The two vertical poles are vertically fixed on the edge of the bottom plate; a fixing plate is fixedly arranged on the two vertical poles, and the fixing plate is respectively provided with a bracket guide ring and a bracket body extending outward, the bracket guide ring is used to connect the guide rod, and the bracket body is used to hinge the turning handle; the turning handle is hinged to the top end of the guide rod through a connecting elbow.

[0010] The PCB board riveting equipment described in the utility model has an "L"-shaped turning handle; one end of the turning handle is hinged to the bracket body on the fixed plate as hinge point one, and the right-angle turning point of the turning handle and the connecting elbow are hinged to each other as hinge point two; the distance between hinge point one and hinge point two is the distance of the downward movement of the guide rod.

[0011] The utility model discloses a PCB board expansion riveting device, a spring, a guide plate, and a column; a column is arranged between two of the columns; a spring is sleeved on the outer side of the column; a guide plate is sleeved on the column and horizontally placed on the top of the spring, and the guide plate is provided with a fixed support plate extending in the same direction as the guide ring of the bracket; the fixed support plate is fixedly connected to the guide rod; the guide plate moves downward with the guide rod to squeeze the spring.

[0012] The PCB board expansion riveting device described in the utility model comprises a plurality of columns, each of which is provided with a spring; a through hole matching the column is provided on the guide plate; and the guide plate is sleeved on the plurality of columns through the through hole.

[0013] The PCB board expansion riveting device described in the utility model, the fixing mechanism includes expansion riveting studs and a lower die seat; a plurality of fixing holes are arranged in the lower die seat, the fixing holes are used to place the expansion riveting studs, and the upper plate surface of the lower die seat is used to place the PCB board flatly.

[0014] In the PCB board expansion riveting equipment described in the utility model, the height of the expansion riveting stud is 1 mm higher than the depth of the lower die base fixing hole; the lower die base fixing hole is a tapered hole, and the angle of the tapered hole is 118°.

[0015] In the PCB board expansion riveting equipment described in the utility model, the included angle of the punch at the bottom of the guide rod is 33°.

[0016] Beneficial Effects

[0017] The PCB board expansion and riveting equipment provided by the utility model consists of a fixing mechanism and a punch mechanism, has a simple structure, is easy to operate, and can be used by operators after training. The worker only needs to turn the handle of the punch mechanism, and the stud is reliably fixed without deflection, does not require solder paste, does not affect the appearance, and does not pollute the environment. In addition, this method has high working efficiency, and each time the handle is turned, a stud is fixed, which can reduce labor costs and avoid noise and vibration damage caused by machine processing.

[0018] The utility model provides a PCB board expansion riveting device, in which the stud is fixed through a hole on a base before expansion riveting, the bottom of the fixing hole is tapered, and the tapered angle is 118 degrees. The stud is in line contact with the bottom of the hole, and compared with surface contact, the fixation is more reliable. At the same time, the stud extends out of the base by 1mm to ensure that the entire surface of the top of the stud is in contact with the PCB board. The expansion riveting stud processed in this way is perpendicular to the PCB board and has higher precision.

[0019] The utility model provides a PCB board riveting device, in which a stud is riveted into a mounting hole of the PCB board through a punch mechanism. A worker can press and rivet one riveting stud each time he turns the handle. This method is safer and free of the noise and vibration of large-scale mechanical processing. In addition, the mechanism is simple to operate, low in cost, and convenient to maintain. One stud can be riveted each time the punch is hammered, and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the handlebar pressed down of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the fixing mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the tumbler of the present invention when it is folded;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the stud mounting hole of the present invention;

[0024] In the figure: 1. punch mechanism; 2. fixing mechanism; 3. PCB board; 4. rivet stud; 5. lower die base; 7. punch; 8. bottom plate; 9. vertical pole; 10. spring; 11. guide plate; 12. fixing plate; 13. guide rod; 14. connecting elbow; 15. turning handle; 16. vertical pole; 17. screw; 18. nut. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a PCB board riveting device includes a punch mechanism 1, a fixing mechanism 2, and a base plate 8; the punch mechanism 1 is vertically fixed on the base plate 8; the upper end surface of the base plate 8 is a plane for placing the fixing mechanism 2; the punch mechanism 1 moves from top to bottom to contact the fixing mechanism 2 and apply pressure.

[0027] The punch mechanism 1 includes a vertical rod 9, a fixed plate 12, a guide rod 13, a connecting elbow 14, and a turning handle 15; the two vertical rods 9 are vertically fixed to the edge of the bottom plate 8; the fixed plates 12 are fixedly arranged on the two vertical rods 9, and the fixed plates 12 are respectively provided with a bracket guide ring and a bracket body extending outward, the bracket guide ring is used to connect the guide rod 13, and the bracket body is used to hinge the turning handle 15; the turning handle 15 is hinged to the top of the guide rod 13 through the connecting elbow 14.

[0028] The handle 15 is "L"-shaped; one end of the handle 15 is hinged to the bracket body on the fixed plate 12 as hinge point 1, and the right-angle turning point of the handle 15 is hinged to the connecting elbow 14 as hinge point 2; the distance between hinge point 1 and hinge point 2 is the distance that the guide rod 13 moves downward.

[0029] A column 16 is provided between the two upright poles 9; a spring 10 is sleeved on the outer side of the column 16; a guide plate 11 is sleeved on the column 16 and horizontally placed on the top of the spring 10, and the guide plate 11 is provided with a fixed support plate extending in the same direction as the guide ring of the bracket; the fixed support plate is fixedly connected to the guide rod 13; the guide plate 11 moves downward with the guide rod 13 to squeeze the spring 10. Each of the upright poles 16 is provided with a spring 10; a through hole matching the upright pole 16 is provided on the guide plate 11; the guide plate 11 is sleeved on a plurality of upright poles 16 through the through holes.

[0030] The fixing hole of the lower die base 5 is a tapered hole, and the included angle of the tapered hole is 118°; the included angle of the punch 7 at the bottom of the guide rod 13 is 33°.

[0031] The implementation steps of this device are as follows:

[0032] The device uses a turning handle 15 to drive the punch 7 to move up and down. Each time it moves back and forth, a stud is riveted, which can reduce labor costs, is safe, saves time and effort, and has high efficiency.

[0033] First, the worker places the installed punch mechanism 1 on the table, places the installed fixing mechanism 2 on the fixing plate 8, turns the handle 15 by hand, slowly presses down the handle 15 to make the punch 7 contact the PCB board 3, moves the fixing mechanism 2 with the other hand to press the punch 7 into the hole of the rivet stud 4, presses the handle 15 to the bottom, hears a click, releases the handle 15, turns the handle 15 back to the top starting position, hears a click and lets go, at this time one rivet stud 4 is riveted complete, if you want to rivet the next one, repeat the above steps to continue to execute another rivet stud 4 on the next PCB board 3, until all rivet studs 4 are riveted complete.

[0034] Since the angle of the conical hole at the bottom of the fixing hole of the lower die seat 5 is 118°, it is in contact with the plane line at the bottom of the expansion rivet stud 4, so the verticality of the expansion rivet stud is better. The fixed PCB board 3 is manually placed on the lower die seat 5 through the expansion rivet stud 4. Since the expansion rivet stud 4 is about 1mm higher than the lower die seat 5, the expansion rivet stud 4 is guaranteed to be vertical to the PCB board 3. During the whole process, the worker only needs to turn the handle 15 and move the fixing mechanism 2, which can greatly improve the work efficiency and product quality. For PCB boards 3 of different thicknesses, the pads can be added or removed under the fixing mechanism, and the equipment is versatile.

[0035] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A PCB board expansion riveting device, characterized by: The punch mechanism (1) comprises a punch mechanism (1), a fixing mechanism (2), and a base plate (8); the punch mechanism (1) is vertically fixed on the base plate (8); the upper end surface of the base plate (8) is a plane for placing the fixing mechanism (2); the punch mechanism (1) moves from top to bottom to contact the fixing mechanism (2) and apply pressure; the punch mechanism (1) comprises a vertical rod (9), a fixing plate (12), a guide rod (13), a connecting elbow (14), and a turning handle (15); The two vertical poles (9) are vertically fixed to the edge of the bottom plate (8); a fixing plate (12) is fixedly arranged on the two vertical poles (9); the fixing plate (12) is respectively provided with a bracket guide ring and a bracket body extending outward; the bracket guide ring is used to connect the guide rod (13); the bracket body is used to hinge the turning handle (15); the turning handle (15) is hinged to the top end of the guide rod (13) through a connecting elbow (14).

2. The PCB riveting equipment according to claim 1, characterized in that: The turning handle (15) is in an "L" shape; one end of the turning handle (15) is hinged to the bracket body on the fixing plate (12) as a hinge point 1, and the right-angle turning point of the turning handle (15) and the connecting elbow (14) are hinged to each other as a hinge point 2; the distance between the hinge point 1 and the hinge point 2 is the distance of the downward movement of the guide rod (13).

3. The PCB riveting equipment according to claim 1, characterized in that: A spring (10), a guide plate (11), and a column (16); a column (16) is provided between the two columns (9); the spring (10) is sleeved on the outer side of the column (16); the guide plate (11) is sleeved on the column (16) and horizontally placed on the top of the spring (10), and the guide plate (11) is provided with a fixed support plate extending in the same direction as the bracket guide ring; the fixed support plate is fixedly connected to the guide rod (13); the guide plate (11) moves downward with the guide rod (13) to squeeze the spring (10).

4. The PCB board riveting equipment according to claim 3, characterized in that: There are a plurality of upright posts (16), each of which is provided with a spring (10); a through hole matching the upright posts (16) is provided on the guide plate (11); and the guide plate (11) is sleeved on the plurality of upright posts (16) through the through hole.

5. The PCB riveting equipment according to claim 1, characterized in that: The fixing mechanism (2) comprises a rivet stud (4) and a lower die seat (5); a plurality of fixing holes are arranged in the lower die seat (5), the fixing holes are used to place the rivet stud (4), and the upper plate surface of the lower die seat (5) is used to place the PCB board (3) flatly.

6. The PCB riveting equipment according to claim 5, characterized in that: The height of the expansion rivet stud (4) is 1 mm higher than the depth of the fixing hole of the lower die base (5); the fixing hole of the lower die base (5) is a tapered hole, and the angle of the tapered hole is 118°.

7. The PCB riveting equipment according to claim 1, characterized in that: The included angle of the punch (7) at the bottom of the guide rod (13) is 33°.

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