CN212384512U

CN212384512U - Electric pulling rivet gun

Info

Publication number: CN212384512U
Application number: CN202020629377.4U
Authority: CN
Inventors: 卢灿阳; 卢允中
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-22
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses an electronic riveter that draws, include: a housing having a through opening; the driving motor is arranged on the shell and comprises a transmission shaft; a rotating unit, which is arranged on the shell and is driven by the transmission shaft to rotate, and the rotating unit defines a rotating shaft and comprises an eccentric convex part eccentric to the rotating shaft; and the rivet mechanism comprises a driven shaft part arranged on the shell and a clamping unit which is arranged on the driven shaft part and corresponds to the through hole, the driven shaft part comprises a supported part positioned on a rotating path of the eccentric convex part, and the eccentric convex part can be abutted with the supported part and drive the driven shaft part to reciprocate relative to the shell along a moving direction which is transverse to the rotating shaft.

Description

Electric pulling rivet gun

Technical Field

The utility model relates to an electronic riveter that draws, its mainly used rivets two articles.

Background

In the conventional electric rivet pulling gun, a gear reduction mechanism is used to reduce the rotation speed of a transmission shaft of a motor, a ball screw is combined to drive internal elements to break a rivet, and then the motor is rotated reversely to return the elements to the initial positions.

The existing gear reduction mechanism and ball screw have complex configuration structure, thus having the defects of difficult processing, high cost and larger volume, and the motor needs to be reversely rotated to achieve the aim of resetting, thus consuming more energy when in use.

Therefore, there is a need for a new and improved electric rivet gun to solve the above problems.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an electric rivet gun, which is energy-saving, simple in structure, small in size and applicable to a narrow space.

To achieve the above object, the utility model provides a pair of electric rivet gun, include: a housing having a through opening; the driving motor is arranged on the shell and comprises a transmission shaft; a rotating unit, which is arranged in the shell and is driven by the transmission shaft to rotate, and the rotating unit defines a rotating shaft and comprises an eccentric convex part eccentric to the rotating shaft; and the rivet mechanism comprises a driven shaft part arranged on the shell and a clamping unit which is arranged on the driven shaft part and corresponds to the through hole, the driven shaft part comprises a supported part which is positioned on the rotating path of the eccentric convex part, and the eccentric convex part can be abutted with the supported part and drive the driven shaft part to reciprocate relative to the shell along a moving direction which is transverse to the rotating shaft.

The rotating unit further comprises a rotating part provided with the eccentric convex part and a sliding part which can be arranged on the eccentric convex part in a relatively rotating way, and the sliding part can be abutted against the abutted part.

The shell comprises a switching part, the switching part comprises a first channel for accommodating the rotating unit and a second channel for accommodating the blind rivet mechanism, and the first channel and the second channel are transversely connected and communicated with each other.

The first channel comprises a first ring stage which is adjacent to the second channel and accommodates the eccentric convex part, the adapter part further comprises a communication channel which is radially arranged from the first ring stage and communicated with the second channel, and the supported part can reciprocate in the first ring stage and the communication channel along the moving direction.

One of the inner peripheral surface of the second channel and the outer peripheral surface of the driven shaft member is provided with at least one guide protrusion, and the other one is provided with at least one guide recess capable of receiving the at least one guide protrusion.

Each guide protrusion comprises a shaft lever and a pulley capable of rotating relative to the shaft lever, and at least part of each pulley is accommodated in one guide groove.

The electric pull rivet gun further comprises a transmission assembly connected between the rotating unit and the transmission shaft, wherein the transmission assembly comprises a gear ring arranged on the shell and at least one planetary gear set, each planetary gear set comprises a sun gear and at least one planetary gear meshed between the sun gear and the gear ring, the sun gear of one planetary gear set is driven to rotate by the transmission shaft, and the at least one planetary gear of the planetary gear set adjacent to the rotating unit can drive the rotating unit to rotate.

The transmission assembly comprises a plurality of planetary gear sets and at least one disc body arranged between two adjacent planetary gear sets, and two opposite sides of each disc body are respectively connected with the sun gear of one planetary gear set and the at least one planetary gear of the other planetary gear set.

The rivet mechanism further comprises an elastic piece connected between the driven shaft piece and the shell, and in the moving direction, the elastic direction of the elastic piece is opposite to the stress direction of the supported part which is supported and pushed by the eccentric convex part.

The rotating unit further comprises a rotating member provided with the eccentric convex part and a sliding member relatively rotatably arranged on the eccentric convex part, and the sliding member can be abutted against the abutted part; the first channel comprises a first ring stage which is adjacent to the second channel and accommodates the eccentric convex part, the switching part also comprises a communication channel which is radially arranged from the first ring stage and communicated with the second channel, and the supported part can reciprocate in the first ring stage and the communication channel along the moving direction; the rotating part further comprises a small-diameter section provided with the eccentric convex part and a large-diameter section connected with the small-diameter section, and the first channel further comprises a second ring stage for accommodating the small-diameter section and a third ring stage for accommodating the large-diameter section; the rotating unit further comprises a bearing which is sleeved on the small-diameter section and is abutted with the inner circumferential surface of the second ring section; the rivet mechanism also comprises an elastic piece connected between the driven shaft piece and the shell, and the elastic direction of the elastic piece is opposite to the force direction of the pressed part pressed and pushed by the eccentric convex part in the moving direction; the second channel penetrates through the adapter part along the moving direction, the adapter part further comprises a cap which is detachably arranged on the second channel in a covering mode, the adapter part is provided with the through hole, the cap is located on the opposite side of the through hole, and at least part of the elastic piece is accommodated in the cap and is elastically abutted between the cap and the driven shaft piece; the electric pulling rivet gun also comprises a transmission component connected between the rotating unit and the transmission shaft, wherein the transmission component comprises a gear ring arranged on the shell and at least one planetary gear set, each planetary gear set comprises a sun gear and at least one planetary gear meshed between the sun gear and the gear ring, the sun gear of one planetary gear set is driven to rotate by the transmission shaft, and the at least one planetary gear of the planetary gear set adjacent to the rotating unit can drive the rotating unit to rotate; the transmission assembly comprises a plurality of planetary gear sets and at least one disc body arranged between two adjacent planetary gear sets, and two opposite sides of each disc body are respectively connected with the sun gear of one planetary gear set and the at least one planetary gear of the other planetary gear set; the shell further comprises a transmission accommodating part which is used for accommodating the transmission assembly and is detachably connected with the adapting part, one of the transmission accommodating part and the adapting part comprises an aligning convex part, and the other comprises an aligning concave part which can be connected with the aligning convex part; the electric pulling rivet gun also comprises a rivet head screwed on the peripheral wall of the through opening, wherein the rivet head is used for a rivet to penetrate and comprises an expanded head part and a body part which is connected with the expanded head part and is in threaded connection with the peripheral wall of the through opening; the driven shaft part encloses a tapered section which is opened towards the through hole and is gradually reduced, the clamping unit comprises a clamping jaw part which is at least partially accommodated in the tapered section and an elastic abutting part which is connected between the clamping jaw part and the driven shaft part, and the elastic abutting part enables the clamping jaw part to be abutted against the tapered section in a normal radial direction to be deformed in a radial contraction manner; the driven shaft part further comprises a threaded section which is open towards the different end of the tapered section and is communicated with the tapered section, the clamping unit further comprises a blocking part which is screwed in the threaded section, and the elastic abutting part elastically abuts between the clamping jaw part and the blocking part.

The utility model has the advantages that: the utility model discloses energy-conservation, the succinct and small and can be applied to narrow and small space of structure.

Drawings

Fig. 1 is an exploded view of a preferred embodiment of the present invention.

Fig. 2 is a cross-sectional view of a preferred embodiment of the present invention in an initial state of a blind rivet.

Fig. 3 is a cross-sectional view of a preferred embodiment of the present invention in a pop-up state.

Fig. 4 is an exploded perspective view of the driven shaft according to a preferred embodiment of the present invention.

Fig. 5 is a partially enlarged view of the rotating unit according to a preferred embodiment of the present invention.

Fig. 6 is a partially enlarged view of the adapter according to a preferred embodiment of the present invention.

Fig. 7 is a perspective view of a transmission accommodating portion according to a preferred embodiment of the present invention.

1: an electric rivet pulling gun, 10: a shell, 11: a through hole, 12: an adapter part, 121: a first channel, 122: a second channel, 123a: a first ring stage, 123b: a second ring stage, 123c: a third ring stage, 124: a communicating channel, 125: a guide concave, 126: a cap, 13: a transmission accommodating part, 131: a concave part, 132: an assembling concave part, 20: a driving motor, 21: a transmission shaft, 30: a rotating unit, 31: an eccentric convex part, 32: a rotating part, 321: a small diameter section, 322: a large diameter section, 33: a sliding part, 34: a bearing, 40: a rivet pulling mechanism, 41: a driven shaft part, 411: a supported part, 412: a guide convex, 413: 414: a pulley, 415: a shaft lever plane, 416: a tapered section, 417: a threaded section, 42: a clamping unit, 421: a clamping claw piece, 422: an elastic supporting piece, 423: a stopper, 43: an elastic piece, 50: a rivet head, 51: a large head part, 52: a body part, 60: transmission component, 61: gear ring, 611: assembly convex part, 62: planetary gear set, 621: sun gear, 622: planetary gear, 63: disc, R: rotation axis, and M: moving direction.

Detailed Description

The following description is given by way of example only, and not by way of limitation, of the scope of the invention.

Referring to fig. 1 to 7, which illustrate a preferred embodiment of the present invention, an electric rivet gun 1 of the present invention includes a housing 10, a driving motor 20, a rotating unit 30 and a rivet pulling mechanism 40.

The housing 10 has a through opening 11; the driving motor 20 is disposed in the housing 10 and includes a transmission shaft 21; the rotating unit 30 is disposed on the housing 10 and driven by the transmission shaft 21 to rotate, the rotating unit 30 defines a rotating axis R and includes an eccentric protrusion 31 eccentric to the rotating axis R; the pop-rivet mechanism 40 includes a driven shaft 41 disposed on the housing 10 and a clamping unit 42 disposed on the driven shaft 41 and corresponding to the through hole 11, the driven shaft 41 includes a supported portion 411 located on a rotation path of the eccentric protrusion 31, and the eccentric protrusion 31 can be abutted against the supported portion 411 and drive the driven shaft 41 to reciprocate relative to the housing 10 along a moving direction M transverse to the rotation axis R. Therefore, the electric rivet pulling gun 1 has the advantages of energy conservation, simple structure, small size and capability of being applied to narrow space.

The housing 10 includes an adapter portion 12, the adapter portion 12 includes a first channel 121 for accommodating the rotation unit 30 and a second channel 122 for accommodating the blind rivet mechanism 40, and the first channel 121 and the second channel 122 are connected in a transverse direction and are communicated with each other. The first passage 121 includes a first ring stage 123a adjacent to the second passage 122 and accommodating the eccentric protrusion 31, the adapting portion 12 further includes a communicating channel 124 radially opened from the first ring stage 123a and communicating with the second passage 122, and the supported portion 411 can reciprocate in the first ring stage 123a and the communicating channel 124 along the moving direction M. Preferably, one of the inner peripheral surface of the second channel 122 and the outer peripheral surface of the driven shaft 41 is provided with at least one guiding protrusion 412, and the other one is provided with at least one guiding recess 125 capable of receiving the at least one guiding protrusion 412. In this embodiment, the outer peripheral surface of the driven shaft 41 is provided with two guiding protrusions 412, and the inner peripheral surface of the second channel 122 is provided with two guiding recesses 125 corresponding to the two guiding protrusions 412, so that the driven shaft 41 does not rotate relative to the second channel 122 and can move relatively stably without skewing; each guide protrusion 412 includes a shaft 413 and a pulley 414 capable of rotating relative to the shaft 413, and each pulley 414 is at least partially accommodated in one guide recess 125, and can slide smoothly and is not easy to be jammed.

The rotating unit 30 further includes a rotating member 32 having the eccentric protrusion 31 and a sliding member 33 relatively rotatably disposed on the eccentric protrusion 31, wherein the sliding member 33 can abut against the abutted portion 411 to operate smoothly without jamming. In this embodiment, the eccentric protrusion 31 is cylindrical, the sliding member 33 is a roller sleeved on the eccentric protrusion 31 and can smoothly rotate relative to the eccentric protrusion 31, and the supported portion 411 has a supporting plane 415 capable of supporting against the roller, so that the structure is simple, the stability is good, and the sliding is not easy to slip; the rotating member 32 includes a small diameter section 321 having the eccentric protrusion 31 and a large diameter section 322 connected to the small diameter section 321, and the first channel 121 further includes a second ring stage 123b accommodating the small diameter section 321 and a third ring stage 123c accommodating the large diameter section 322, so as to facilitate positioning and assembling; the rotating unit 30 further includes a bearing 34 disposed on the small-diameter section 321 and abutting against the inner peripheral surface of the second ring section 123b, so as to ensure smooth rotation of the rotating member 32 in the first channel 121. In other embodiments, the sliding member may be rotatably pivoted (not sleeved) to the eccentric protrusion; the rotating member may also have only a single radial dimension.

The pop-up rivet mechanism 40 further includes an elastic member 43 connected between the driven shaft 41 and the housing 10, and in the moving direction M, an elastic direction of the elastic member 43 is opposite to a force direction of the pressed portion 411 pressed by the eccentric protrusion 31. In this embodiment, the second channel 122 penetrates the adaptor portion 12 along the moving direction M, the adaptor portion 12 further includes a cap 126 detachably covering the second channel 122, the adaptor portion 12 is provided with the through hole 11, the cap 126 is located at an opposite side of the through hole 11, and the elastic member 43 is at least partially accommodated in the cap 126 and elastically abuts between the cap 126 and the driven shaft member 41, so as to facilitate assembly, maintenance and part replacement. Referring to fig. 2 and 3, when the eccentric protrusion 31 abuts against the abutted portion 411, the driven shaft 41 compresses the elastic member 43 and moves in the moving direction M in a direction away from the through hole 11, so as to break the rivet; when the eccentric protrusion 31 is separated from the receiving portion 411, the elastic member 43 stretches and pushes the driven shaft 41 to return to its initial position along the moving direction M, so that the restoring effect can be achieved without reversing the transmission shaft 21, and the loss of electric energy can be reduced. In other embodiments, the elastic element may also be a tension spring disposed between the driven shaft and the peripheral wall of the through opening; the cap may also be integrally formed with the adaptor portion.

In detail, the driven shaft 41 encloses a tapered section 416 that is open and tapered toward the through hole 11, and the holding unit 42 includes a clamping jaw 421 at least partially accommodated in the tapered section 416 and an elastic member 422 connected between the clamping jaw 421 and the driven shaft 41, wherein the elastic member 422 makes the clamping jaw 421 radially abut against the tapered section 416 to deform in a radial direction. The driven shaft 41 further includes a threaded section 417 open to the opposite end of the tapered section 416 and communicating with the tapered section 416, and the clamping unit 42 further includes a stopper 423 screwed to the threaded section 417, and the elastic member 422 is elastically abutted between the jaw member 421 and the stopper 423, so that the assembly is easy and the maintenance and replacement are convenient. With the above structure, when the rivet is inserted through the through hole 11, the elastic member 422 is compressed by force, and the clamping jaw member 421 moves in a direction away from the through hole 11 and can expand radially without abutting against the tapered section 416, so as to facilitate the insertion of the rivet; when the rivet is inserted in place, the elastic member 422 pushes the clamping jaw member 421 toward the direction of the through hole 11, and the clamping jaw member 421 radially pushes against the tapered section 416 to be radially contracted, so as to clamp the rivet to facilitate rivet pulling. The elastic supporting member can also be an extension spring connected between the tapered section and the clamping jaw member, and the same effect can be achieved.

This rivet rifle 1 is drawn to electronic drawing includes in addition that a spiral shell locates the rivet head 50 of the perisporium of this opening 11, and this rivet head 50 supplies a rivet to wear to establish and include an enlarged head 51 and one connect in this enlarged head 51 and with the body 52 of the perisporium looks spiro union of this opening 11, and this enlarged head 51 can supply with this rivet butt, and structural strength is good and be convenient for maintain and change.

The electric rivet pulling gun 1 further includes a transmission assembly 60 connected between the rotating unit 30 and the transmission shaft 21, the transmission assembly 60 includes a gear ring 61 disposed on the housing 10 and at least one planetary gear set 62, each planetary gear set 62 includes a sun gear 621 and at least one planetary gear 622 engaged between the sun gear 621 and the gear ring 61, wherein the sun gear 621 of one planetary gear set 62 is driven by the transmission shaft 21 to rotate, and the at least one planetary gear 622 of the planetary gear set 62 adjacent to the rotating unit 30 can drive the rotating unit 30 to rotate, thereby effectively reducing the rotation speed of the transmission shaft 21 and driving the rotating member 32 to rotate. In the present embodiment, the transmission assembly 60 includes a plurality of planetary gear sets 62 and at least one disc 63 disposed between two adjacent planetary gear sets 62, and two opposite sides of each disc 63 are respectively connected to the sun gear 621 of one planetary gear set 62 and the at least one planetary gear 622 of another planetary gear set 62, so that the assembly stability is good, the structure is simple, and the assembly is convenient. Each sun gear 621 may be integrally protruded from one of the plates 63 or may be connected thereto.

The housing 10 further includes a transmission accommodating portion 13 for accommodating the transmission assembly 60 and detachably connected to the adapting portion 12, the transmission accommodating portion 13 includes a concave portion 131 corresponding to an outer contour of the adapting portion 12 for facilitating alignment and assembly; the third ring stage 123c can be partially inserted into the transmission accommodating portion 13, so that the assembly stability is good. One of the inner peripheral surface of the transmission accommodating portion 13 and the outer peripheral surface of the ring gear 61 includes a set of engaging protrusions 611, and the other includes a set of engaging recesses 132 engageable with the set of engaging protrusions 611. In the embodiment, the assembling protrusion 611 includes a plurality of convex ribs protruding from the outer circumferential surface of the gear ring 61, and the assembling recess 132 includes a plurality of concave grooves recessed from the inner circumferential surface of the transmission accommodating portion 13, so that the structure is simple, the process is easy, and the assembling stability is good.

Claims

1. The utility model provides an electronic rivet rifle that draws which characterized in that: the method comprises the following steps:

a housing having a through opening;

the driving motor is arranged on the shell and comprises a transmission shaft;

a rotating unit, which is arranged on the shell and is driven by the transmission shaft to rotate, and the rotating unit defines a rotating shaft and comprises an eccentric convex part eccentric to the rotating shaft; and

the rivet mechanism comprises a driven shaft part arranged on the shell and a clamping unit which is arranged on the driven shaft part and corresponds to the through hole, the driven shaft part comprises a supported part which is positioned on a rotating path of the eccentric convex part, and the eccentric convex part can be abutted with the supported part and drive the driven shaft part to move back and forth relative to the shell along a moving direction which is transverse to the rotating shaft.

2. An electric pull rivet gun as defined in claim 1, further comprising: the rotating unit further comprises a rotating part provided with the eccentric convex part and a sliding part which can be arranged on the eccentric convex part in a relatively rotating way, and the sliding part can be abutted against the abutted part.

3. An electric pull rivet gun as defined in claim 1, further comprising: the shell comprises a switching part, the switching part comprises a first channel for accommodating the rotating unit and a second channel for accommodating the blind rivet mechanism, and the first channel and the second channel are transversely connected and communicated with each other.

4. An electric pull rivet gun as defined in claim 3, wherein: the first channel comprises a first ring stage which is adjacent to the second channel and accommodates the eccentric convex part, the adapter part further comprises a communication channel which is radially arranged from the first ring stage and communicated with the second channel, and the supported part can reciprocate in the first ring stage and the communication channel along the moving direction.

5. An electric pull rivet gun as defined in claim 3, wherein: one of the inner peripheral surface of the second channel and the outer peripheral surface of the driven shaft member is provided with at least one guide protrusion, and the other one is provided with at least one guide recess capable of receiving the at least one guide protrusion.

6. An electric pull rivet gun as defined in claim 5, wherein: each guide protrusion comprises a shaft lever and a pulley capable of rotating relative to the shaft lever, and at least part of each pulley is accommodated in one guide groove.

7. An electric pull rivet gun as defined in claim 1, further comprising: the transmission assembly comprises a gear ring arranged on the shell and at least one planetary gear set, each planetary gear set comprises a sun gear and at least one planetary gear meshed between the sun gear and the gear ring, the sun gear of one planetary gear set is driven by the transmission shaft to rotate, and the at least one planetary gear of the planetary gear set adjacent to the rotating unit can drive the rotating unit to rotate.

8. An electric pull rivet gun as defined in claim 7, further comprising: the transmission assembly comprises a plurality of planetary gear sets and at least one disc body arranged between two adjacent planetary gear sets, and two opposite sides of each disc body are respectively connected with the sun gear of one planetary gear set and the at least one planetary gear of the other planetary gear set.

9. An electric pull rivet gun as defined in any one of claims 1 to 8, characterized in that: the rivet mechanism further comprises an elastic piece connected between the driven shaft piece and the shell, and in the moving direction, the elastic direction of the elastic piece is opposite to the stress direction of the supported part which is supported and pushed by the eccentric convex part.

10. An electric pull rivet gun as defined in claim 6, further comprising: the rotating unit further comprises a rotating member provided with the eccentric convex part and a sliding member relatively rotatably arranged on the eccentric convex part, and the sliding member can be abutted against the abutted part; the first channel comprises a first ring stage which is adjacent to the second channel and accommodates the eccentric convex part, the switching part also comprises a communication channel which is radially arranged from the first ring stage and communicated with the second channel, and the supported part can reciprocate in the first ring stage and the communication channel along the moving direction; the rotating part further comprises a small-diameter section provided with the eccentric convex part and a large-diameter section connected with the small-diameter section, and the first channel further comprises a second ring stage for accommodating the small-diameter section and a third ring stage for accommodating the large-diameter section; the rotating unit further comprises a bearing which is sleeved on the small-diameter section and is abutted with the inner circumferential surface of the second ring section; the rivet mechanism also comprises an elastic piece connected between the driven shaft piece and the shell, and the elastic direction of the elastic piece is opposite to the force direction of the pressed part pressed and pushed by the eccentric convex part in the moving direction; the second channel penetrates through the adapter part along the moving direction, the adapter part further comprises a cap which is detachably arranged on the second channel in a covering mode, the adapter part is provided with the through hole, the cap is located on the opposite side of the through hole, and at least part of the elastic piece is accommodated in the cap and is elastically abutted between the cap and the driven shaft piece; the electric pulling rivet gun also comprises a transmission component connected between the rotating unit and the transmission shaft, wherein the transmission component comprises a gear ring arranged on the shell and at least one planetary gear set, each planetary gear set comprises a sun gear and at least one planetary gear meshed between the sun gear and the gear ring, the sun gear of one planetary gear set is driven to rotate by the transmission shaft, and the at least one planetary gear of the planetary gear set adjacent to the rotating unit can drive the rotating unit to rotate; the transmission assembly comprises a plurality of planetary gear sets and at least one disc body arranged between two adjacent planetary gear sets, and two opposite sides of each disc body are respectively connected with the sun gear of one planetary gear set and the at least one planetary gear of the other planetary gear set; the shell further comprises a transmission accommodating part which is used for accommodating the transmission assembly and is detachably connected with the adapting part, one of the transmission accommodating part and the adapting part comprises an aligning convex part, and the other comprises an aligning concave part which can be connected with the aligning convex part; the electric pulling rivet gun also comprises a rivet head screwed on the peripheral wall of the through opening, wherein the rivet head is used for a rivet to penetrate and comprises an expanded head part and a body part which is connected with the expanded head part and is in threaded connection with the peripheral wall of the through opening; the driven shaft part encloses a tapered section which is opened towards the through hole and is gradually reduced, the clamping unit comprises a clamping jaw part which is at least partially accommodated in the tapered section and an elastic abutting part which is connected between the clamping jaw part and the driven shaft part, and the elastic abutting part enables the clamping jaw part to be abutted against the tapered section in a normal radial direction to be deformed in a radial contraction manner; the driven shaft part further comprises a threaded section which is open towards the different end of the tapered section and is communicated with the tapered section, the clamping unit further comprises a blocking part which is screwed in the threaded section, and the elastic abutting part elastically abuts between the clamping jaw part and the blocking part.