CN212495156U

CN212495156U - Riveting drive mechanism and electronic riveting nut rifle

Info

Publication number: CN212495156U
Application number: CN202020255094.8U
Authority: CN
Inventors: 洪宝松
Original assignee: Kunshan Riveting Foot Strength Tool Co Ltd
Current assignee: Kunshan Riveting Foot Strength Tool Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2021-02-09
Anticipated expiration: 2030-03-04

Abstract

The utility model relates to a riveting set technical field provides a riveting drive mechanism and electronic riveting nut rifle, and riveting drive mechanism includes rear axle bearing, front axle bearing, lead screw subassembly, screw drive adapter sleeve, riveting subassembly, driving motor and drive mechanism, and the lead screw subassembly includes drive nut and lead screw. Starting a driving motor, driving the spiral transmission connecting sleeve to rotate around the axis through a transmission mechanism, and simultaneously driving the riveting component to rotate around the axis, wherein at the moment, the riveting component drives the riveting nut to rotate and is screwed into a threaded hole of an object to be riveted; meanwhile, the driving motor drives the transmission nut of the screw rod assembly to rotate around the axis, and the screw rod moves linearly along the axial direction, so that the riveting assembly is pulled to rivet the riveting nut. The riveting transmission mechanism has the advantages of small number of parts, compact overall structure, smaller volume and simple transmission process.

Description

Riveting drive mechanism and electronic riveting nut rifle

Technical Field

The utility model relates to a riveting set technical field especially provides a riveting drive mechanism and have this riveting drive mechanism's electronic riveting nut rifle.

Background

The nut riveting gun is a common riveting tool and is widely applied to the production fields of buildings, automobiles, ships, electric appliances and the like.

The core mechanism of the riveting nut gun is a riveting transmission mechanism. The riveting transmission mechanism completes two actions during working: firstly, driving a riveting nut to be screwed into an object to be riveted; and secondly, performing riveting action on the riveting nut to enable the riveting nut to be riveted on the object. Because need accomplish above-mentioned two installation actions, lead to current riveting drive mechanism's whole bulky, and the structure is complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a riveting drive mechanism aims at solving the whole bulky and complicated problem of structure of current riveting drive mechanism.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a riveting drive mechanism, locates including back bearing frame, cover the front bearing frame in the back bearing frame outside, locate in the back bearing frame and around in the axis pivoted lead screw subassembly of back bearing frame, arrange in the back bearing frame and extend to the screw drive adapter sleeve, the cover of front bearing frame are located screw drive adapter sleeve in and be used for the riveting subassembly of riveting nut, be used for driving the lead screw subassembly with screw drive adapter sleeve pivoting driving motor and being used for connecting driving motor with the drive mechanism of screw drive adapter sleeve, the lead screw subassembly including connect in the drive nut of driving motor's output and wear to locate drive nut and with the lead screw of drive nut looks adaptation, the one end of lead screw connect in the riveting subassembly.

Specifically, the transmission mechanism is the transmission nut, the transmission nut has a bearing part arranged in the rear bearing seat and a transmission part formed by the bearing part protruding outwards in the radial direction and used for connecting the output end of the driving motor, and the spiral transmission connecting sleeve is arranged in the bearing part and rotates around an axis along with the bearing part.

Specifically, the riveting transmission mechanism further comprises a first bearing and a second bearing, the first bearing is arranged between the rear bearing seat and the bearing part, and the second bearing is arranged between the end part of the front bearing seat and the end part of the bearing part.

Or the transmission mechanism is a gear sleeved at the output end of the driving motor, the spiral transmission connecting sleeve comprises a main body in a hollow structure and a tooth connection part formed by the main body protruding outwards along the radial direction, and the tooth connection part is meshed and connected with the gear.

Furthermore, an intermediate transmission mechanism for adjusting the rotating speed is arranged between the gear and the tooth part.

Specifically, the riveting transmission mechanism further comprises a third bearing arranged between the front bearing seat and the tooth portion and a fourth bearing arranged between the tooth portion and the end side of the transmission nut.

Specifically, the riveting component comprises a shaft sleeve sleeved in the spiral transmission connecting sleeve, a connecting rotating shaft arranged at the end part of the shaft sleeve and a drawing screw fixed at one end, far away from the shaft sleeve, of the connecting rotating shaft.

Specifically, a guide groove is formed in the side wall of the spiral transmission connecting sleeve along the axial direction, and a connecting pin penetrating through the guide groove is arranged on the connecting rotating shaft.

The utility model has the advantages that: the utility model provides a riveting transmission mechanism, driving motor start, drive the rotation of spiral transmission adapter sleeve around the axis through transmission mechanism, simultaneously, drive the riveting subassembly to rotate around the axis, at this moment, the riveting subassembly drives the riveting nut and rotates, and twist into the screwed hole of waiting to rivet the object, this is the first step of riveting nut, installs the riveting nut; meanwhile, the driving motor drives the transmission nut of the screw rod assembly to rotate around the axis, and the screw rod moves linearly along the axial direction, so that the riveting assembly is pulled to realize the riveting action of the riveting nut, which is the second step of the riveting nut. The rivet pulling force of the screw rod driving the riveting component is far greater than the rotating force of the screw transmission connecting sleeve driving the riveting component to rotate around the axis, so that once the screw rod pulls the riveting component, the phenomenon of wire sliding occurs between the riveting component and the screw transmission connecting sleeve, and the riveting component stops rotating. The riveting transmission mechanism has the advantages of small number of parts, compact overall structure, smaller volume and simple transmission process.

The utility model also provides an electronic riveting nut rifle, including inductive switch subassembly and above-mentioned riveting drive mechanism, the inductive switch subassembly includes the edge the first switch response piece and the second switch response piece that the axial direction interval of riveting drive mechanism's lead screw set up and locate respectively directly over the first switch response piece with the second inductive switch of the first inductive switch directly over the second switch response piece with.

The utility model has the advantages that: the utility model provides an electronic riveting nut rifle on having above-mentioned riveting drive mechanism's basis, whole small, compact structure, assembly are more convenient.

Specifically, electronic riveting nut rifle still includes the edge draw adjustment mechanism that the axial direction of riveting drive mechanism's lead screw set up, draw adjustment mechanism including adjusting nut, wear to locate just can be relative in the adjusting nut follows the body of rod that the axial direction of riveting drive mechanism's lead screw removed and locating third inductive switch on the body of rod, the inductive switch subassembly include with the second switch response set up side by side and be used for with the third inductive switch interact's third switch response.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a riveting transmission mechanism according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a screw transmission connecting sleeve and a transmission mechanism of a riveting transmission mechanism provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a riveting component of a riveting transmission mechanism according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a riveting transmission mechanism provided in the second embodiment of the present invention;

fig. 5 is a schematic structural view of a spiral transmission connecting sleeve of a riveting transmission mechanism provided in the second embodiment of the present invention;

fig. 6 is a cross-sectional view of the electric nut gun according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the riveting transmission mechanism 100, the rear bearing seat 10, the front bearing seat 20, the screw rod assembly 30, the screw transmission connecting sleeve 40, the riveting assembly 50, the driving motor 60, the transmission mechanism 70, the transmission nut 31, the screw rod 32, the bearing part 311, the transmission part 312, the mounting step 313, the first bearing 81, the second bearing 82, the shaft sleeve 51, the connecting rotating shaft 52, the drawing screw 53, the guide groove 40a, the connecting pin 521, the main body 41, the tooth part 42, the mounting hole 10a, the third bearing 83, the fourth bearing 84, the induction switch assembly 200, the first switch induction piece 201, the second switch induction piece 202, the first induction switch 203, the second induction switch 204, the drawing adjustment mechanism 300, the adjustment nut 301, the rod body 302, the third induction switch 303 and the third switch induction piece 205.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, a riveting transmission mechanism 100 according to an embodiment of the present invention includes a rear bearing seat 10, a front bearing seat 20 sleeved outside the rear bearing seat 10, a screw assembly 30 disposed in the rear bearing seat 10 and rotating around a central axis of the rear bearing seat 10, the screw assembly 30 comprises a transmission nut 31 connected to the output end of the driving motor 60 and a lead screw 32 penetrating through the transmission nut 31 and matching with the transmission nut 31, and one end of the lead screw 32 is connected to the riveting assembly 50.

The embodiment of the utility model provides a riveting drive mechanism 100, its working process is as follows: the driving motor 60 is started, the spiral transmission connecting sleeve 40 is driven to rotate around the axis through the transmission mechanism 70, meanwhile, the riveting component 50 is driven to rotate around the axis, at the moment, the riveting component 50 drives the riveting nut to rotate and is screwed into a threaded hole of an object to be riveted, and the riveting nut is installed as a first step of the riveting nut; meanwhile, the driving motor 60 drives the driving nut 31 of the lead screw assembly 30 to rotate around the axis, and the lead screw 32 makes a linear motion along the axial direction, so as to pull the riveting assembly 50 to rivet the riveting nut, which is the second step of riveting the nut. The rivet pulling force of the screw rod 32 driving the riveting component 50 is far greater than the rotating force of the screw transmission connecting sleeve 40 driving the riveting component 50 to rotate around the axis, so that once the screw rod 32 pulls the riveting component 50, the phenomenon of wire sliding occurs between the riveting component 50 and the screw transmission connecting sleeve 40, namely, the riveting component 50 stops rotating. The riveting transmission mechanism 100 is few in number of parts, compact in overall structure, small in size and simple in transmission process.

Example one

Specifically, referring to fig. 1 and fig. 2, in the present embodiment, the transmission mechanism 70 is a transmission nut 31, the transmission nut 31 has a bearing portion 311 disposed in the rear bearing seat 10 and a transmission portion 312 formed by the bearing portion 311 protruding outward in the radial direction and used for connecting the output end of the driving motor 60, and the spiral transmission connection sleeve 40 is disposed in the bearing portion 311 and rotates around the axis along with the bearing portion 311. Here, the bearing part 311 is a tubular structure, the inner wall of which is provided with a mounting step 313, and the screw transmission connecting sleeve 40 is directly fixed at the mounting step 313 of the bearing part 311, and the two are in interference fit to avoid relative rotation. In this way, the output end of the driving motor 60 is only engaged with the transmission part 312 of the transmission nut 31, and the spiral transmission connecting sleeve 40 can be driven to rotate around the axis, so that the whole structure is compact and the transmission relationship is simple.

Specifically, referring to fig. 1, the riveting transmission mechanism 100 further includes a first bearing 81 and a second bearing 82, the first bearing 81 is disposed between the rear bearing seat 10 and the bearing portion 311, and the second bearing 82 is disposed between an end of the front bearing seat 10 and an end of the bearing portion 311. It will be appreciated that relative rotation between the bearing portion 311 of the drive nut 31 and the rear bearing block 10 is achieved by means of the first bearing 81 and the second bearing 82.

Specifically, referring to fig. 1 and 3, the riveting assembly 50 includes a sleeve 51 sleeved in the spiral transmission connecting sleeve 40, a connecting rotation shaft 52 mounted at an end of the sleeve 51, and a drawing screw 53 fixed at an end of the connecting rotation shaft 52 far from the sleeve. It will be appreciated that the transmission sequence is as follows: the spiral transmission connecting sleeve 40 drives the shaft sleeve 51, the shaft sleeve 51 drives the connecting rotating shaft 52, the connecting rotating shaft 52 drives the drawing screw 53, and finally the drawing screw 53 rotates around the axis.

Specifically, referring to fig. 1 and 3, the side wall of the spiral transmission connecting sleeve 40 is provided with a guide groove 40a along the axial direction, and the connecting rotating shaft 52 is provided with a connecting pin 521 penetrating through the guide groove. It can be understood that when the connecting pins 521 are inserted into the corresponding guide grooves 40a, the rotational force of the connecting rotary shaft 52 about the axis by the auger connecting sleeve 40 is further increased.

Example two

Referring to fig. 4 and 5, the difference from the above embodiment is that the transmission mechanism 70 is a gear sleeved on the output end of the driving motor 60, and the spiral transmission connecting sleeve 40 includes a main body 41 having a hollow structure and a tooth portion 42 formed by the main body 41 protruding outward in the radial direction, and the tooth portion 42 is engaged with the gear. It will be understood that the drive nut 31 is not connected to the drive connection sleeve 40, but is rotated by a gear provided at the output of the drive motor 60. Specifically, a mounting hole 10a is formed in the rear bearing seat 10, and the gear extends into the rear bearing seat 10 through the mounting hole 10a and is engaged with the tooth portion 42 of the screw transmission connecting sleeve 40 to drive the main body 41 to rotate around the axis. Similarly, the installation position of the spiral transmission connecting sleeve 40 in the rear bearing seat 10 is not changed in the transmission mode, and only a gear is arranged outside the rear bearing seat 10, so that the riveting transmission mechanism 100 is also compact in overall structure and smaller in size. In addition, in the transmission mode, the nut is separated from the transmission nut 31 of the screw rod assembly 30, is not influenced by the nut, and is directly driven to rotate by the driving motor 60, so that a more suitable rotating speed can be obtained when the nut is riveted. For example, the gear ratio between the gears and the toothing 42 is changed according to the actual requirements of use.

Further, an intermediate transmission mechanism (not shown) for adjusting the rotation speed is provided between the gear and the tooth portion 42. It will be appreciated that the ratio of the two can be varied equally by the addition of an intermediate mechanism between the gear and the toothing 42. For example, the intermediate transmission mechanism is a toothed column pivoted in the rear bearing seat 10, i.e. a gear is in meshing connection with the toothing 42 through the toothed column. Of course, the intermediate transmission mechanism may be other transmission mechanisms, which are not described herein.

In particular, referring to fig. 4, to ensure that the auger connecting sleeve 40 rotates about an axis within the rear bearing housing 10. The rivet transmission mechanism 100 further includes a third bearing 83 provided between the front bearing housing 20 and the tooth portion 42, and a fourth bearing 84 provided between the tooth portion 42 and the end side of the transmission nut 31.

Referring to fig. 6, the present invention further provides an electric nut riveting gun, which includes an inductive switch assembly 200 and the riveting transmission mechanism 100, wherein the inductive switch assembly 200 includes a first switch inductive element 201 and a second switch inductive element 202 spaced along an axial direction of the lead screw 32 of the riveting transmission mechanism 100, and a first inductive switch 203 and a second inductive switch 204 respectively disposed directly above the first switch inductive element 201 and the second switch inductive element 202.

The embodiment of the utility model provides an electronic riveting nut rifle, its process is as follows, when second inductive switch 204 and second switch response piece 202 mutual response, the driving motor 60 of riveting drive mechanism 100 circular telegram starts, wherein, the screw drive adapter sleeve 40 drives riveting subassembly 50 and rotates around the axis, and lead screw subassembly 30 realizes the action of drawing to riveting subassembly 50; when the lead screw 32 of the lead screw assembly 30 moves backward along the drawing direction and the first switch induction piece 201 and the second induction switch 204 mutually induce, the driving motor 60 is powered off and stops, that is, the rivet-pulling action of the lead screw assembly 30 is finished, that is, the rivet nut is installed.

Specifically, referring to fig. 6, in the present embodiment, in order to meet the rivet requirement of the rivet nuts with different specifications. The electric riveting nut gun further comprises a drawing adjusting mechanism 300 arranged along the axial direction of the screw rod 32 of the riveting transmission mechanism 100, the drawing adjusting mechanism 300 comprises an adjusting nut 301, a rod body 302 which penetrates through the adjusting nut 301 and can move along the axial direction of the screw rod 32 of the riveting transmission mechanism 100 relative to the adjusting nut 301, and a third induction switch 303 arranged on the rod body 302, and the induction switch assembly 200 comprises a third switch induction piece 205 which is arranged side by side with the second switch induction piece 202 and is used for mutual induction with the third induction switch 303. It can be understood that, the rod 302 is provided with a scale, and the relative position of the rod 302 and the adjusting nut 301 in the pulling direction is selected according to the scale, that is, the distance between the third inductive switch 303 and the third switch inductive element 205 is adjusted. When the driving motor 60 is started, the axial moving distance of the screw rod 32 of the screw rod assembly 30 is the drawing depth of the riveting assembly 50 to the riveting nut, and when the third switch induction piece 205 moves along with the screw rod 32 and is induced by the third induction switch 303, the driving motor 60 stops, and the screw rod 32 stops drawing.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a riveting drive mechanism which characterized in that: locate including back bearing frame, cover the front bearing frame in the back bearing frame outside, locate in the back bearing frame and around in the axis pivoted lead screw subassembly of back bearing frame, arrange in the back bearing frame and extend to the screw drive adapter sleeve, the cover of front bearing frame are located in the screw drive adapter sleeve and be used for riveting the riveting subassembly of nut, be used for driving the lead screw subassembly with the screw drive adapter sleeve is around pivoted driving motor and be used for connecting driving motor with the drive mechanism of screw drive adapter sleeve, the lead screw subassembly including connect in the drive nut of driving motor's output and wear to locate drive nut and with the lead screw of drive nut looks adaptation, the one end of lead screw connect in riveting the subassembly.

2. The riveting transmission mechanism of claim 1, wherein: the transmission mechanism is the transmission nut, the transmission nut has the bearing part of arranging in the rear bearing seat and by the bearing part radially outwards stretches the formation and is used for connecting the transmission part of driving motor's output, the spiral transmission adapter sleeve set up in the bearing part and along with the bearing part rotates around the axis.

3. The riveting transmission mechanism of claim 2, wherein: the riveting transmission mechanism further comprises a first bearing and a second bearing, the first bearing is arranged between the rear bearing seat and the bearing part, and the second bearing is arranged between the end part of the front bearing seat and the end part of the bearing part.

4. The riveting transmission mechanism of claim 1, wherein: the transmission mechanism is a gear sleeved at the output end of the driving motor, the spiral transmission connecting sleeve comprises a main body in a hollow structure and a tooth connection part formed by the main body protruding outwards along the radial direction, and the tooth connection part is meshed and connected with the gear.

5. The riveting transmission mechanism of claim 4, wherein: an intermediate transmission mechanism for adjusting the rotating speed is further arranged between the gear and the tooth joint part.

6. The riveting transmission mechanism of claim 4, wherein: the riveting transmission mechanism further comprises a third bearing arranged between the front bearing seat and the tooth joint part and a fourth bearing arranged between the tooth joint part and the end side of the transmission nut.

7. The riveting transmission mechanism of claim 1, wherein: the riveting component comprises a shaft sleeve sleeved in the spiral transmission connecting sleeve, a connecting rotating shaft arranged at the end part of the shaft sleeve and a drawing screw fixed at one end of the connecting rotating shaft far away from the shaft sleeve.

8. The riveting transmission mechanism of claim 7, wherein: the side wall of the spiral transmission connecting sleeve is provided with a guide groove along the axial direction, and the connecting rotating shaft is provided with a connecting pin penetrating through the guide groove.

9. The utility model provides an electronic riveting nut rifle which characterized in that: the riveting transmission mechanism comprises an inductive switch assembly and the riveting transmission mechanism as claimed in any one of claims 1 to 8, wherein the inductive switch assembly comprises a first switch inductive piece and a second switch inductive piece which are arranged at intervals along the axial direction of a screw rod of the riveting transmission mechanism, and a first inductive switch and a second inductive switch which are respectively arranged right above the first switch inductive piece and the second switch inductive piece.

10. The electric riveter-nut gun of claim 9, wherein: electronic riveting nut rifle still includes the edge draw adjustment mechanism that the axial direction of riveting drive mechanism's lead screw set up, draw adjustment mechanism including adjusting nut, wear to locate in the adjusting nut and can be relative adjusting nut follows the body of rod of the axial direction removal of riveting drive mechanism's lead screw and locating third inductive switch on the body of rod, the inductive switch subassembly include with the second switch response set up side by side and be used for with the third inductive switch response's third switch response.