CN213317461U - Handheld electromagnetic single-side riveting device - Google Patents
Handheld electromagnetic single-side riveting device Download PDFInfo
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- CN213317461U CN213317461U CN202022170054.6U CN202022170054U CN213317461U CN 213317461 U CN213317461 U CN 213317461U CN 202022170054 U CN202022170054 U CN 202022170054U CN 213317461 U CN213317461 U CN 213317461U
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Abstract
The utility model provides a unilateral riveting set of hand-held type electromagnetism, including stop gear and hand-held type electromagnetism riveter. The limiting mechanism comprises a limiting sleeve, a return spring base plate, a return spring, a rivet, a fixing plate, a conveying pipeline, a centering pin and a nail clamping turnover plate; the handheld electromagnetic riveter comprises a punch, an electromagnetic riveter shell, an amplifier, a driving sheet, a coil base, a limiting bolt, a central guide rod, a coil base fixing piece, a punch return spring, a central guide rod gasket, a spring damper, a fixed spring support, a shell connecting gasket, a handle connecting seat, a handle, a fastening bolt and a fixed spring. The utility model adopts the electromagnetic force loading, the impact force is large, and the effect of easily finishing the processing without drilling in advance can be achieved; the riveting process is rapid, only a few milliseconds are needed frequently, the production efficiency is greatly improved, and a large gun feeding space does not need to be reserved in the front riveting direction.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetism riveting, concretely relates to unilateral riveting set of hand-held type electromagnetism.
Background
With the popularization of new energy automobiles, the light weight of automobiles becomes a key technology for producing new energy automobiles, and the adoption of carbon fiber composite materials and light materials such as aluminum and magnesium alloys is an important means for reducing the weight of automobile bodies. Riveting is one of the most widely used connecting technologies, and is suitable for connecting various metals and non-metal materials, however, for thick sandwich structures, the problems of uneven interference amount, poor fatigue performance and the like exist in common riveting. Secondly, when the titanium alloy plate is riveted by using a common riveting method, the rivet is easy to have upset head cracks, and the connection defect exists. Electromagnetic riveting, as a new riveting process, has many unique features, such as high loading rate and load, and the ability to create uniform interference, thereby improving the quality of the riveting and the fatigue strength of the joint.
The rotary tapping riveting technology is one of unilateral riveting, is a cold forming process for tapping and riveting a plate after the plate is thermally deformed by high-speed rotation, solves the problems that the traditional riveting process is complex in flow, needs to drill in advance and the like, and has the defects of high cost, long period, large bulges reserved on the front and back sides of the rivet after the process is finished, and a large gun entering space needs to be reserved in the front riveting direction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a unilateral riveting set of hand-held type electromagnetism with stop gear prevents rivet off normal.
The specific technical scheme of the utility model is a hand-held electromagnetic unilateral riveting device, which is characterized in that the electromagnetic unilateral riveting device comprises a limiting mechanism, a hand-held electromagnetic riveter and an external circuit;
the hand-held electromagnetic riveter comprises a punch, an amplifier, a driving sheet, a coil and a central guide rod; the punch is arranged on the amplifier, the amplifier and the driving sheet are connected into a whole, the coil is arranged on the driving sheet, and the central guide rod, the amplifier and the driving sheet are connected into a whole;
the external circuit is connected with the coil and provides electromagnetic driving force for the punch;
the limiting mechanism comprises a limiting sleeve, a fixing plate and a nail clamping turnover plate and is used for fixing a rivet;
the limiting sleeve is a thin-walled hollow tube-mounted sleeve and is connected with the handheld electromagnetic riveter, the fixing plate is arranged in the limiting sleeve, one end of the nail-clamping turnover plate is connected with the bottom of the fixing plate, and a semicircular groove is formed in the other end of the nail-clamping turnover plate.
Furthermore, the limiting mechanism comprises a limiting sleeve round hole and a conveying pipeline;
the limiting sleeve round hole is oppositely arranged on the side wall of the limiting sleeve;
the conveying pipeline is an open semicircular pipe, the inlet end of the conveying pipeline is arranged at the position of the circular hole of the limiting sleeve, and the outlet end of the conveying pipeline is arranged at the center of the limiting sleeve.
Furthermore, the limiting mechanism comprises a centering pin, and the centering pin is respectively connected with the fixing plate and the nail clamping turnover plate.
Furthermore, the limiting mechanism comprises a return spring base plate and a return spring;
the return spring is connected with the nail clamping turnover plate, the return spring is clamped on the base in a buckling mode, and the base is fixed on the return spring base plate;
the outer surface of the return spring base plate is connected with the inner surface of the limiting sleeve.
Furthermore, the diameter of the semicircular groove of the nail clamping turnover plate is equal to the diameter of the lower surface of the rivet head.
Further, the cross section of the conveying pipeline is semicircular, and the diameter of the semicircle is larger than the diameters of the rivet head and the punch.
Further, the punch adopts a replaceable structure.
The utility model has the advantages that:
the utility model adopts the electromagnetic force loading, the impact force is large, and the effect of easily finishing the processing without drilling in advance can be achieved; the riveting process is rapid, only a few milliseconds are needed frequently, the production efficiency is greatly improved, and a large gun feeding space does not need to be reserved in the front riveting direction.
The utility model discloses a stop gear turns over board fixing rivet through the nail that presss from both sides that has spring return, has reached and has carried the rivet, fixing rivet, riveting in-process prevent effects such as rivet off normal, has improved degree of automation, and this device simple structure, adopts threaded connection more, and the dismouting is convenient, easy maintenance.
The utility model discloses a stop gear adopts lateral wall opening cooperation pipeline guide rivet to get into clamping position, has realized the accurate quick preparation of rivet, improves production efficiency.
The utility model discloses a drift of removable structure can change the drift according to the size of rivet, convenient and fast, and the suitability is strong.
Drawings
Fig. 1 is a schematic structural view of a handheld electromagnetic single-sided riveting device of the present invention;
fig. 2 is a schematic structural view of a limiting mechanism in the handheld electromagnetic single-sided riveting device of the present invention;
fig. 3 is a schematic structural diagram of a rivet fixing mechanism in the handheld electromagnetic single-side riveting device of the present invention.
Wherein, 1-a limiting mechanism, 2-a limiting sleeve, 3-a return spring backing plate, 4-a return spring, 5-a rivet, 6-a fixing plate, 7-a conveying pipeline, 8-a punch, 9-an electromagnetic riveter shell, 10-an amplifier, 11-a driving sheet, 12-a coil, 13-a coil base, 14-a limiting bolt, 15-a central guide rod, 16-a coil base fixing part, 17-a punch return spring, 18-a central guide rod gasket, 19-a spring damper, 20-a fixing spring support, 21-a shell connecting gasket, 22-a handle connecting seat, 23-a handle, 24-a handheld electromagnetic riveter, 25-a fastening bolt, 26-a fixing spring, 27-a handheld electromagnetic single-side riveter working switch, 28-capacitor bank, 29-protective resistor, 30-rectifier, 31-charging switch, 32-alternating current power supply, 33-external circuit, 34-limiting sleeve round hole, 35-conveying pipeline groove, 36-centering pin and 37-nail clamping turnover plate.
Detailed Description
The following describes the technical solution of the present invention with reference to the drawings.
As shown in fig. 1, the utility model discloses a unilateral riveting set of hand-held type electromagnetism, this unilateral riveting set of electromagnetism includes stop gear 1, hand-held type electromagnetism riveter 24 and external circuit 29.
The handheld electromagnetic riveter 24 comprises a punch 8, an electromagnetic riveter shell 9, an amplifier 10, a driving sheet 11, a coil 12, a coil base 13, a limiting bolt 14, a central guide rod 15, a coil base fixing piece 16, a punch return spring 17, a central guide rod gasket 18, a spring damper 19, a fixing spring support 20, a shell connecting gasket 21, a handle connecting seat 22, a handle 23, a fastening bolt 25 and a fixing spring 26.
The punch 8 is connected with the amplifier 10 through threads, the punch can be replaced according to the size of the rivet 5, the punch 8 can be stretched at the front end of the shell 9 of the electromagnetic riveter, and the rivet 5 is impacted to realize riveting. The driving plate 11 and the amplifier 10 are fixedly connected into a whole through bolts, and the driving plate 11 is made of a purple copper material with high magnetic conductivity to ensure that the driving plate can generate an induced magnetic field. The coil 12 is a copper wire and is wound with insulation in advance, and then is wound with a glass ribbon, epoxy resin, polyamide for the second time. The coil 12 is wound on the coil base 13 in a buckling mode, and the coil base 13 and the riveter shell 9 are provided with slots, so that the positive electrode and the negative electrode of the coil 12 can be externally connected with the discharging device 33. Electromagnetic riveter shell 9 adopts aluminum alloy material, alleviates the riveter weight when guaranteeing certain intensity, is equipped with the slide on the electromagnetic riveter shell 9, and the slide is passed through to spacing bolt 14 head, and the rear connection is on coil base 13 for coil base 13 can only slide in the slide within range through spacing bolt 14. The coil base 13 is provided with a through hole at the center, so that the central guide rod 15 can penetrate through the coil base 13 and is fixedly connected with the whole body formed by the amplifier 10 and the driving plate 11 through threads. The coil base fixing member 16 is fixedly connected to the coil base 13 by a bolt, and the coil base fixing member 16 serves to support the spring damper 19, the fixing spring 26, and the punch return spring 17. One end of the central guide rod 15 is provided with a punch return spring 17, and the assembly of the punch return spring and the bolt is limited through a central guide rod gasket 18. In this way, the entire punch 8, the amplifier 10, and the driving plate 11 and the center guide rod 15 can be returned by the punch return spring 17. The spring damper 19 and the fixing spring 26 are installed between the case connection pad 21 and the coil base fixing member 16, and function to absorb a reaction force when the electromagnetic coil 12 is discharged and absorb shock. The handle connecting seat 22, the handle 23 and the shell connecting gasket 21 are connected through a fastening bolt 25. In order to ensure the rigidity, the electromagnetic riveter handle 23 is processed by cast iron, and a layer of insulating material is plated outside, so that the safety of the riveter is fully ensured.
The limiting mechanism 1 comprises a limiting sleeve 2, a return spring backing plate 3, a return spring 4, rivets 5, a fixing plate 6, a conveying pipeline 7, a centering pin 36 and a nail clamping turning plate 37.
The limiting sleeve 2 is a thin-walled hollow tube-mounted sleeve, one end of the limiting sleeve is connected with the shell 9 of the electromagnetic riveter through threads, and the limiting sleeve 2 is used for limiting the riveting position of the rivet 5 in the riveting process. Two limiting sleeve round holes 34 are arranged at opposite positions on the side wall of the limiting sleeve 2 and used for installing the conveying pipeline 7 and conveying nails.
Stop gear 1 includes two pipeline 7, and pipeline 7 is the opening semicircle pipe, and the entry end sets up in stop sleeve round hole 34 department, and the exit end setting is at stop sleeve 2 center. The section of the conveying pipeline 7 is semicircular, and the semicircular diameter is larger than the diameter of the head of the rivet 5 and the diameter of the surface circle of the punch 8, so that the rivet 5 is prevented from being clamped in the pipeline when sliding down from the conveying pipeline 7, and the punch 8 can penetrate through the conveying pipeline 7 to impact the rivet 5. The dorsal part of the inlet end of the conveying pipeline 7 is provided with a conveying pipeline groove which is convenient to be connected with the limiting sleeve 2.
The limiting mechanism 1 comprises two fixing plates 6, the fixing plates 6 are arranged inside the limiting sleeve 2 and are respectively located at the bottom of the outlet end of the conveying pipeline 7, the fixing plates 6 are connected with the nail turning plates 37 through centering pins 36, and the nail turning plates 37 can turn over up and down through the centering pins 36. The shape of the nail turning plate 37 is concave, one end of the nail turning plate 37 is connected with the bottom of the centering pin 36, the other end of the nail turning plate 37 is provided with a semicircular groove, and the diameter of the semicircle is equal to that of the lower surface of the head of the rivet 5, so that the two nail turning plates 37 can clamp the rivet 5 to fix the rivet. The bottoms of the nail clamping turnover plates 37 are clamped on the base in a buckling mode through the return springs 4, and the base is fixed on the return spring base plate 3 in a bolt connecting mode. The outer surfaces of the fixing plate 6 and the return spring base plate 3 are made into arc shapes equal to the diameter of the inner surface of the limiting sleeve 2, so that the fixing plate 6 and the return spring base plate 3 are fixed on the inner surface of the limiting sleeve 2 through bolt connection. During the process that the punch 8 drives the rivet 5 into the connected plates, the two nail clamping turnover plates 37 are turned downwards, so that the return spring 4 is compressed, and when the rivet 5 leaves the nail clamping turnover plates 37, the return spring 4 rebounds to return the nail clamping turnover plates 37.
The electromagnetic riveter external circuit 33 is used for providing electromagnetic driving force for the punch 8; the external circuit 33 of the electromagnetic riveter comprises a handheld electromagnetic single-side riveting device working switch 27, a capacitor bank 28, a protective resistor 29, a rectifier 30, a charging switch 31 and an alternating current power supply 32. And two ends of the coil 12 are connected with the output end of the external circuit 33 of the electromagnetic riveter. During discharging, the switch S2 is manually closed, and the ac power supply 32 charges the capacitor bank 28 through the rectifier 30 and the protection resistor 29; after the charging is completed, the electromagnetic riveter external circuit 33 automatically closes the switch S1, and outputs a pulse current through the electromagnetic coil 12. After the discharge is finished, the switches S1 and S2 are automatically switched off, the discharge process is finished, and the riveting cycle is finished by the device.
The utility model discloses specific working process does:
firstly, the limiting sleeve 2 is connected with the electromagnetic riveter shell 9 through threads, the conveying pipeline 7 is fixed on the limiting sleeve 2, the rivet 5 is arranged at the inlet of the conveying pipeline 7, and the rivet 5 falls on the rivet clamping turnover plate 37 along the conveying pipeline 7. And then, keeping the working switch of the handheld electromagnetic riveter in an off state, closing the charging switch to form a charging loop consisting of an alternating current power supply 32, a rectifier 30, a protective resistor 29 and a capacitor bank 28, and rectifying the alternating current by the rectifier to convert the alternating current into direct current to charge the capacitor bank. After the charging is finished, the charging switch is switched off, the working switch 27 of the handheld electromagnetic riveter is switched on, a discharging loop consisting of the capacitor bank 28 and the coil 12 is formed, and the capacitor bank 28 discharges. An alternating strong magnetic field is generated around the coil 12 through the discharge loop, and at the same time, the driving sheet 11 generates an induced eddy current due to high magnetic permeability, thereby generating an induced magnetic field. Repulsive force can be generated between the alternating strong magnetic field and the eddy magnetic field, and the integral impact rivet 5 formed by the driving sheet 11, the amplifier 10 and the punch 8 is pushed to complete riveting. Finally, the nail clamping turnover plate 37 is driven to return through the rebound of the return spring 4; the punch 8 and the return spring 4 rebound to drive the driving sheet 11, the amplifier 10, the punch 8 and the central guide rod 15 to return, and the whole working process is completed once.
The electromagnetic single-side riveting is a novel cold connection technology which is loaded by utilizing electromagnetic force, approaches a workpiece from a single side only and connects two or more plates at high speed, is suitable for connecting various materials and alloys, can be used together with an adhesive to realize glue riveting combination, has the advantages of low cost, instantaneous completion of riveting, high efficiency, large riveting force, no need of reserving a large gun entering space during front-side riveting and the like compared with rotary tapping riveting, has the characteristics of high reliability, no heat zone deformation, environmental friendliness and the like, and meets the requirements of the current and future automobile body structures.
Although the present invention has been described in connection with the preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. The scope of protection of the invention should therefore be determined with reference to the claims that follow.
Claims (7)
1. A handheld electromagnetic single-side riveting device is characterized by comprising a limiting mechanism (1), a handheld electromagnetic riveter (24) and an external circuit (29);
the hand-held electromagnetic riveter comprises a punch (8), an amplifier (10), a driving sheet (11), a coil (12) and a central guide rod (15); the punch (8) is arranged on the amplifier (10), the amplifier (10) and the driving sheet (11) are connected into a whole, the coil (12) is arranged on the driving sheet (11), and the central guide rod (15) is connected with the amplifier (10) and the driving sheet (11) into a whole;
the external circuit (29) is connected with the coil (12) and provides electromagnetic driving force for the punch (8);
the limiting mechanism (1) comprises a limiting sleeve (2), a fixing plate (6) and a nail clamping turnover plate (37) and is used for fixing a rivet (5);
the limiting sleeve (2) is a thin-walled hollow tube-mounted sleeve and is connected with the handheld electromagnetic riveter (24), the fixing plate (6) is arranged in the limiting sleeve (2), one end of the nail clamping turnover plate (37) is connected with the bottom of the fixing plate (6), and a semicircular groove is formed in the other end of the nail clamping turnover plate.
2. The electromagnetic single-side riveting device according to claim 1, wherein the limiting mechanism (1) comprises a limiting sleeve round hole (34) and a conveying pipeline (7);
the limiting sleeve round hole (34) is oppositely arranged on the side wall of the limiting sleeve (2);
the conveying pipeline (7) is an open semicircular pipe, the inlet end of the conveying pipeline (7) is arranged at the position of the round hole (34) of the limiting sleeve, and the outlet end of the conveying pipeline (7) is arranged at the center of the limiting sleeve (2).
3. The electromagnetic single-sided riveting device according to claim 1, characterized in that the limiting mechanism (1) comprises a centering pin (36), and the centering pin (36) is respectively connected with the fixing plate (6) and the nail clamping flap (37).
4. The electromagnetic single-side riveting device according to claim 1, wherein the limiting mechanism (1) comprises a return spring backing plate (3) and a return spring (4);
the return spring (4) is connected with the nail clamping turnover plate (37), the return spring (4) is clamped on the base in a buckling mode, and the base is fixed on the return spring base plate (3);
the outer surface of the return spring backing plate (3) is connected with the inner surface of the limiting sleeve (2).
5. The electromagnetic single-side riveting device according to claim 2, wherein the diameter of the semicircular groove of the nail clamping flap (37) is equal to the diameter of the lower surface of the head of the rivet (5).
6. The electromagnetic single-sided riveting device according to claim 2, characterized in that the delivery duct (7) has a semicircular section with a diameter greater than the diameter of the rivet (5) head and the punch (8).
7. The electromagnetic single-sided riveting device according to claim 1, characterized in that the punch (8) is of a replaceable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170054.6U CN213317461U (en) | 2020-09-28 | 2020-09-28 | Handheld electromagnetic single-side riveting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170054.6U CN213317461U (en) | 2020-09-28 | 2020-09-28 | Handheld electromagnetic single-side riveting device |
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| Publication Number | Publication Date |
|---|---|
| CN213317461U true CN213317461U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022170054.6U Active CN213317461U (en) | 2020-09-28 | 2020-09-28 | Handheld electromagnetic single-side riveting device |
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| CN (1) | CN213317461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117733058A (en) * | 2024-01-26 | 2024-03-22 | 广州德马威工业装备制造有限公司 | Rivet anti-overturning automatic feeding device for SPR self-piercing riveting equipment |
-
2020
- 2020-09-28 CN CN202022170054.6U patent/CN213317461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117733058A (en) * | 2024-01-26 | 2024-03-22 | 广州德马威工业装备制造有限公司 | Rivet anti-overturning automatic feeding device for SPR self-piercing riveting equipment |
| CN117733058B (en) * | 2024-01-26 | 2024-05-28 | 广州德马威工业装备制造有限公司 | Rivet anti-overturning control method for feeding device of SPR self-piercing riveting equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231228 Address after: 518118 Innovation Square A1904, 2007 Pingshan Avenue, Liulian Community, Pingshan Street, Shenzhen, Guangdong Province Patentee after: Shenzhen Beili Automobile Research Institute Investment Holdings Co.,Ltd. Patentee after: Cui Junjia Address before: 19 / F, block a, innovation Plaza, No. 2007 Pingshan Avenue, Pingshan street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Automobile Research Institute of Beijing University of Technology |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240617 Address after: 518118 a1902, innovation Plaza, No. 2007, Pingshan Avenue, Liulian community, Pingshan street, Pingshan District, Shenzhen, Guangdong Patentee after: Huaxun (Shenzhen) Intelligent Equipment Co.,Ltd. Country or region after: China Address before: 518118 Innovation Square A1904, 2007 Pingshan Avenue, Liulian Community, Pingshan Street, Shenzhen, Guangdong Province Patentee before: Shenzhen Beili Automobile Research Institute Investment Holdings Co.,Ltd. Country or region before: China Patentee before: Cui Junjia |