CN220659854U - Electric riveting nut pulling and riveting tool - Google Patents

Abstract

A power rivet nut pulling tool comprising: casing and set up respectively in its inside brushless motor, reducing gear box, slide core mechanism, pull die and draw the screw rod, wherein: the output shaft of brushless motor links to each other with the reducing gear box, and the output outer wall of reducing gear box and the input inner wall threaded connection of slide core mechanism, and the output inner wall of reducing gear box cup joints with the input outer wall of advancing the riveting axle, slide core mechanism output and adapter sleeve subassembly threaded connection, and the drawing screw rod is arranged in the blind rivet. The device is matched with the controller through the simplified mechanical structure, so that the volume and the weight of an automatic rivet pulling tool are greatly reduced, and the riveting structure is convenient to design and install in a narrow occasion.

Description

Electric riveting nut pulling and riveting tool

Technical Field

The utility model relates to a technology in the field of electric riveting, in particular to an electric riveting nut riveting tool.

Background

The wide use of rivet nuts has created new demands for their associated tools. The tool is simple and light, the use is convenient and labor-saving, operators of traditional manual nut riveting tools in the market at present are laborious, and the pneumatic nut riveting tools influence the application range because of the need of compressed air as power. The existing electric riveting nut tool designed abroad at present shares the same motor as power for screwing in/out of the riveting nut and pulling riveting operation of the riveting nut, and a clutch mechanism is needed to connect or separate the screwing in/pulling riveting/withdrawing functional mechanism in the riveting nut operation process, so that the whole set of clutch mechanism is limited by a narrow space, the structure is extremely complex, faults are easy to occur, and the screwing in/pulling riveting/withdrawing functional mechanism cannot be rapidly removed on site, thereby seriously affecting the operation efficiency.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the electric riveting nut riveting tool, which is matched with a controller through a simplified mechanical structure, so that the volume and the weight of the automatic riveting tool are greatly reduced, and the riveting structure is convenient to design and install in a narrow occasion.

The utility model is realized by the following technical scheme:

the utility model relates to an electric riveting nut pulling and riveting tool, which comprises: casing and set up respectively in its inside brushless motor, reducing gear box, slide core mechanism, pull die and draw the screw rod, wherein: the output shaft of brushless motor links to each other with the reducing gear box, and the output outer wall of reducing gear box and the input inner wall threaded connection of slide core mechanism, and the output inner wall of reducing gear box cup joints with the input outer wall of advancing the riveting axle, slide core mechanism output and adapter sleeve subassembly threaded connection, and the drawing screw rod is arranged in the blind rivet.

The outside of sliding core mechanism and pull rivet head be equipped with rifle headstock, rifle headstock is equipped with lamp shade, aluminium outer lane and screwed connection head outward.

The sliding core mechanism comprises: the slide core, the connecting sleeve component and the rivet feeding shaft are sequentially arranged from outside to inside, wherein: one end of the rivet feeding shaft is in threaded connection with the inside of the connecting sleeve assembly, the outer wall of the output end of the reduction gearbox is in threaded connection with the sliding core, and a plurality of torque transmission pins and a rubber ring are arranged between the outer wall of the other end of the rivet feeding shaft and the inner wall of the output end of the reduction gearbox so as to realize flexible connection with a clutch function.

The bottom of the sliding core is provided with a step structure, and the inner side of the bottom is provided with threads connected with an output shaft of the reduction gearbox.

The riveting shaft is sequentially provided with threads, limiting steps and grooves, wherein the threads, the limiting steps and the grooves are used for being connected with the connecting sleeve assembly, the grooves are used for arranging torque transmission pins, and the grooves are used for arranging rubber rings from top to bottom.

Drawings

FIG. 1 is an exploded view of the present device;

FIG. 2 is a schematic diagram of the transmission of the present device;

FIG. 3 is a schematic view in partial cross-section of FIG. 1;

FIG. 4 is an exploded view of the reduction gearbox;

FIG. 5 is a schematic partial cross-sectional view of a reduction gearbox;

FIG. 6 is a cross-sectional view of a slide core;

FIG. 7 is a schematic view of a cross-section of a rivet feed shaft;

FIG. 8 is a cross-sectional view of the feed rivet shaft and drive pin;

FIG. 9 is a schematic diagram of a digital display assembly;

in the figure: the power supply comprises a drawing screw rod 1, a drawing rivet head 2, a gun head seat 3, a first spring 4, a connecting sleeve component 5, a sliding core 6, a riveting shaft 7, a torque transmission pin 8, a second spring 9, a lamp shade 10, an aluminum outer ring 11, a threaded connector 12, a reduction box 13, a hexagon socket screw 1301, a front end cover 1302, a bearing 1303, an output shaft 1304, a planet gear 1305, a gear housing 1306, a gear ring 1307, a planet wheel seat 1308, a washer 1309, a rear end cover 1310, a brushless motor 14, a controller 15, a power switch 16, a reversing switch 17, a left shell 18, a right shell 19, a shell screw 20, a digital display component 21, a mounting seat 2101, a digital diode 2102, a regulating button 2103 and a battery pack 22.

Detailed Description

As shown in fig. 1-3, this embodiment relates to a power riveting nut pulling tool, which includes: a pair of casings 18, 19, respectively disposed inside thereof, a brushless motor 14, a reduction gearbox 13, a slide core mechanism, a blind rivet 2, and a drawing screw 1, wherein: the motor teeth of the brushless motor 14 are connected with the reduction gearbox 13, the outer wall of the output end of the reduction gearbox 13 is in threaded connection with the inner wall of the input end of the sliding core mechanism, the inner wall of the output end of the reduction gearbox 13 is sleeved with the outer wall of the input end of the sliding core mechanism, the output end of the sliding core mechanism is in threaded connection with the connecting sleeve assembly 5, and the drawing screw 1 is arranged in the rivet head 2.

As shown in fig. 3, the outside of the sliding core mechanism and the connecting sleeve assembly 5 is provided with a gun head seat 3, and a lampshade 10, an aluminum outer ring 11 and a threaded connector 12 are arranged outside the gun head seat 3.

As shown in fig. 4 and 5, the reduction gearbox 13 includes: a housing formed by front end cap 1302, gear housing 1306 and rear end cap 1310, and an output shaft 1304 and a reduction gear set disposed therein, wherein: a bearing 1303 is provided between the output shaft 1304 and the front end cap 1302.

The reduction gear set includes: planetary gears 1305, a gear ring 1307 and a planetary wheel seat 1308.

As shown in fig. 3, the slide core mechanism includes: the slide core 6, the connecting sleeve assembly 5 and the rivet feeding shaft 7 are sequentially arranged from outside to inside, wherein: one end of the rivet feeding shaft 7 is in threaded connection with the inside of the connecting sleeve assembly 5, the outer wall of the output end of the reduction gearbox 13 is in threaded connection with the sliding core 6, and a plurality of torque transmission pins 8 and a rubber ring 23 are arranged between the outer wall of the other end of the rivet feeding shaft 7 and the inner wall of the output end of the reduction gearbox 13 so as to realize flexible connection with a clutch function.

As shown in fig. 6, the bottom of the slide core 6 is provided with a step structure 601, and the inner side of the bottom is provided with threads for connecting with an output shaft 1304 of the reduction gearbox 13.

As shown in fig. 7, the rivet feeding shaft 7 is provided with a thread for connecting with the connecting sleeve assembly 5, a limit step 701, a groove 702 for setting the torque transmission pin 8 and a ring groove 703 for setting the rubber ring 23 from top to bottom.

A first spring 4 is arranged between the sliding core 6 and the gun head seat 3.

A second spring 9 is arranged between the sliding core 6 and the output end of the reduction gearbox 13.

As shown in fig. 8, the end of the brushless motor 14 is provided with a digital display assembly 21, which includes: the mounting base 2101, the diode digital tube 2102, the adjusting button 2103 and the control end of the brushless motor 14 are connected, and the number of rotations of the brushless motor 14 is adjusted through the adjusting button 2103.

As shown in fig. 1, the pair of housings 18 are further provided with a battery, a controller 15, a power switch 16 and a reversing switch 17, wherein: the controller 15 is connected to the battery, the power switch 16 and the brushless motor 14, respectively, and the reversing switch 17 is in contact with the power switch 16.

The device works in the following way: the core mechanism of the riveting nut riveting tool is a riveting linkage mechanism, and the riveting linkage mechanism needs to sequentially complete riveting action, riveting action and riveting action when the tool works, and is specifically as follows:

riveting: the riveting nut workpiece device rotates clockwise on the drawing screw rod and the motor receives the trigger signal, and finally torque is transmitted to the drawing screw rod to generate clockwise rotation through the planetary gear reduction box, the output shaft, the rubber ring and the riveting shaft. The center of the output shaft is provided with a through hole, the periphery of the through hole is provided with a firm slot for increasing friction, the output shaft is flexibly connected with the riveting shaft, one end of the riveting shaft is provided with a rubber ring, a certain torque is transmitted to the riveting transmission shaft through the rubber ring, the riveting transmission shaft rotates together when the push-pull shaft rotates clockwise, the drawing screw at the front end is driven to realize clockwise forward rotation, the riveting nut workpiece is screwed in through threads arranged at the front end of the drawing screw, when the flange plane of the riveting nut workpiece is screwed in the plane of the rivet head and is tightly attached, the screwing-in action is stopped by slipping due to the fact that the blocking resistance is greater than the friction force of the rubber ring on the riveting transmission shaft, and the first action of the tool is completed after the riveting nut workpiece is riveted in place.

And (3) riveting: the speed reducer is provided with an output shaft with a threaded structure, one end of the output shaft is in threaded connection with the sliding core mechanism, the output shaft is fixed at an axial position, when the output shaft radially rotates, the sliding core mechanism radially slides in a hexagonal hole formed in the sliding core seat through threads, the drawing screw rod assembly at the front end is driven to slide forwards or backwards, the second rivet pulling action is completed, and the axial rotation of the motor is completed and is converted into the radial sliding of the sliding core mechanism (the mechanical structure is in the prior art).

Rivet removing action: after the rivet pulling is finished, the controller is arranged to trigger the motor to rotate anticlockwise, the reversing torque is transmitted to the drawing screw rod through the transmission piece, and the screw thread arranged at the front end of the drawing screw rod is screwed out from the internal screw thread of the rivet nut workpiece, so that the third action is completed.

In order to ensure the torque value of the reverse withdrawal, a clutch structure is specially arranged besides the damping torque generated by the rubber ring, the clutch structure does not form an included angle with the self-locking plane of the torque transmission pin to transmit torque when in forward rotation, the torque transmission pin is eccentrically offset when in reverse rotation, an included angle locking force is generated between the inner circular surface of the output shaft and the self-locking plane of the rivet feeding shaft, and the rivet feeding shaft rotates along with the output shaft to realize torque output.

The foregoing embodiments may be partially modified in numerous ways by those skilled in the art without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and not by the foregoing embodiments, and all such implementations are within the scope of the utility model.

Claims (8)

1. An electric rivet nut pull rivet tool, comprising: casing and set up respectively in its inside brushless motor, reducing gear box, slide core mechanism, rifle head and draw the screw rod, wherein: the output shaft of brushless motor links to each other with the reducing gear box, and the output outer wall of reducing gear box and the input inner wall threaded connection of slide core mechanism, and the output inner wall of reducing gear box cup joints with the input outer wall of slide core mechanism, slide core mechanism output and drawing screw rod threaded connection, and the drawing screw rod is arranged in the blind rivet.

2. The power rivet nut pull tool as set forth in claim 1, wherein said slide core mechanism comprises: the slide core, the connecting sleeve component and the rivet feeding shaft are sequentially arranged from outside to inside, wherein: one end of the rivet feeding shaft is in threaded connection with the inside of the connecting sleeve assembly, the outer wall of the output end of the reduction gearbox is in threaded connection with the sliding core, and a plurality of torque transmission pins and a rubber ring are arranged between the outer wall of the other end of the rivet feeding shaft and the inner wall of the output end of the reduction gearbox so as to realize flexible connection with a clutch function.

3. The electric riveting nut pulling and riveting tool as claimed in claim 1, wherein the bottom of the slide core is provided with a step structure, and the inner side of the bottom is provided with threads for connecting with an output shaft of the reduction gearbox.

4. The electric riveting nut pulling and riveting tool as claimed in claim 2, wherein the riveting shaft is provided with a thread for connecting with the connecting sleeve assembly, a limit step, a groove for setting a torque transmission pin and a ring groove for setting a rubber ring from top to bottom in sequence.

5. The electric riveting nut pulling and riveting tool as claimed in claim 2, wherein the outside of the sliding core mechanism and the connecting sleeve assembly is provided with a gun head seat, and the gun head seat is provided with a lampshade, an aluminum outer ring and a threaded connector.

6. The tool of claim 5, wherein a first spring is disposed between the slide core and the gun mount.

7. The electric rivet nut pulling and riveting tool as set forth in claim 2, wherein a second spring is provided between the slide core and the output end of the reduction gearbox.

8. The electric rivet nut pulling and riveting tool as set forth in claim 1, wherein the end of the brushless motor is provided with a digital display assembly, the digital display assembly comprising: the mounting seat, the diode nixie tube arranged in the mounting seat, the adjusting button and the control end of the brushless motor are connected, and the number of rotations of the brushless motor is adjusted through the adjusting button.