CN217045350U

CN217045350U - Hexagon nut positioning mechanism and have its automatic nut riveting equipment

Info

Publication number: CN217045350U
Application number: CN202123371641.2U
Authority: CN
Inventors: 曹璨; 姚峰
Original assignee: Suzhou Swansea Intelligent Equipment Technology Co ltd
Current assignee: Suzhou Swansea Intelligent Equipment Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-26
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a hexagonal nut positioning mechanism, which comprises a first positioning block and a second positioning block which are arranged oppositely, wherein the opposite surfaces between the first positioning block and the second positioning block are provided with grooves, and the grooves are formed by a holding tank and a positioning tank connected with the holding tank; the hexagonal nut is positioned between the accommodating grooves of the first positioning block and the second positioning block, and the positioning grooves on the first positioning block and the second positioning block are respectively positioned at two sides of the hexagonal nut; hexagonal nut positioning mechanism still includes drive arrangement, and drive arrangement drives first locating piece and second locating piece relative slip to make the hexagonal limit butt of constant head tank and hexagonal nut. The utility model discloses can fix a position the hexagonal rivet nut for the hexagonal rivet nut of confirming the angle can be got to the rivet nut rifle, thereby rivets in inserting the hexagonal hole of product with it, has compensatied current automatic rivet nut equipment and can not be used for riveting the hexagonal rivet nut not enough.

Description

Hexagon nut positioning mechanism and have its automatic nut riveting equipment

Technical Field

The utility model relates to a rivet equipment technical field, in particular to hexagon nut positioning mechanism and have its automatic nut equipment of riveting.

Background

The rivet nut is used as a fastener and is developed for overcoming the defects that a metal sheet and a thin pipe welded nut are easy to melt, internal threads are easy to tap and slide, and the like; the riveting tool does not need tapping internal threads or welding nuts, is firm in riveting and high in efficiency, and is convenient to use; the method is widely used for assembling electromechanical and light industrial products such as automobiles, aviation, instruments, furniture and the like.

At present, automatic nut riveting equipment is adopted to automatically rivet nuts on products on some intelligent production lines, and generally a robot or a three-axis platform is utilized to drive a rivet nut gun to automatically rivet the products, so that the manual work is replaced, and the production efficiency is improved; however, the riveting of the hexagon nut by the automatic nut riveting device is always an unsolvable problem in the industry, and the main reason is that the nut pulling gun of the automatic nut riveting device automatically takes the nut, and the automatic nut feeding mechanism cannot position the angle of the hexagon nut, so that after the nut pulling gun takes the nut, a robot cannot accurately insert the hexagon nut into the hexagon hole of a product. Improvements are therefore needed to enable an automatic nut riveting apparatus to rivet hexagonal nuts.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hexagon nut positioning mechanism can fix a position hexagon nut's angle. Meanwhile, the automatic nut riveting device with the hexagonal nut positioning mechanism is provided, so that a blind rivet nut gun can accurately insert a hexagonal nut into a hexagonal hole of a product.

The utility model discloses a following technical scheme realizes:

a hexagonal nut positioning mechanism comprises a first positioning block and a second positioning block which are oppositely arranged, wherein grooves are formed in opposite surfaces between the first positioning block and the second positioning block, and each groove is composed of an accommodating groove and a positioning groove connected with the accommodating groove; the hexagonal nut is positioned between the accommodating grooves of the first positioning block and the second positioning block, and the positioning grooves on the first positioning block and the second positioning block are respectively positioned on two sides of the hexagonal nut;

the hexagonal nut positioning mechanism further comprises a driving device, the driving device drives the first positioning block and the second positioning block to slide relatively, so that the positioning grooves are abutted to the hexagonal edges of the hexagonal nut.

Furthermore, the holding tank includes the cambered surface section, the constant head tank includes straight section and inclined plane section, cambered surface section, straight section and inclined plane section connect gradually.

Furthermore, an included angle between the straight surface section and the inclined surface section is matched with an angle of the hexagonal nut, so that the straight surface section and the inclined surface section are respectively abutted against adjacent side edges of the hexagonal nut.

Furthermore, the groove extends to the side wall of the first positioning block or the second positioning block.

Further, hexagon nut positioning mechanism still includes the inductor, the inductor is used for detecting whether have hexagon nut in the recess.

Furthermore, the first positioning block and/or the second positioning block are/is also provided with mounting holes in a penetrating mode, the mounting holes are communicated with the grooves, and one end of the inductor is located in the mounting holes.

Further, the mounting hole is a kidney-shaped hole.

Furthermore, the driving device is provided with a finger cylinder, and the first positioning block and the second positioning block are respectively arranged on two clamping jaws of the finger cylinder.

Furthermore, guide holes are formed in the first positioning block and/or the second positioning block, and the hexagonal nut positioning mechanism further comprises a guide rod; the guide rod is arranged in the guide hole, and the first positioning block and/or the second positioning block slide along the guide rod.

An automatic nut riveting device with the hexagonal nut positioning mechanism is provided.

Compared with the prior art, the utility model has the advantages of:

1. through relative first locating piece and the second locating piece that sets up to and set up the recess on its opposite face, and through setting up drive arrangement drive first locating piece and second locating piece relative slip, can play and fix a position hexagon nut, with the effect of the angle of confirming hexagon nut.

2. Through constituting holding tank and constant head tank with the recess setting to set up consecutive cambered surface section, straight face section and inclined plane section, can play and hold hexagon nut and carry out rotational positioning's effect rather than.

3. Through the contained angle setting and the hexagon nut corner looks adaptation between with the straight section and the inclined plane section, can be so that straight section and inclined plane section laminate with the adjacent side of hexagon nut mutually to carry out the effect of centre gripping location steadily to it.

4. Through setting up mounting hole and inductor, can play the effect that whether has hexagon nut in being used for detecting the recess to improve automatic production's accuracy nature.

5. Through setting up drive arrangement into finger cylinder, not only can play drive first locating piece and second locating piece relative slip the time, can also guarantee simple structure, practice thrift the effect of cost.

6. Through set up the guide hole on first locating piece and/or second locating piece to set up the guide bar, can play and carry out spacing and the effect of direction to the slip of first locating piece and/or second locating piece, improve stability.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural view of a rotary nailing mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of an overall structure of a hexagon nut positioning mechanism according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a structure of the first positioning block and the second positioning block according to an embodiment of the present invention.

1. A first positioning block; 2. a second positioning block; 3. a groove; 4. accommodating grooves; 41. a cambered surface section; 5. positioning a groove; 51. a straight section; 52. a slope section; 6. an inductor; 7. mounting holes; 8. a drive device; 9. a guide hole; 10. a guide bar; 11. mounting a back plate; 12. pulling a rivet nut gun; 13. a double-rod cylinder; 14. a guide bar; 15. a rotating drum; 16. a guide groove; 17. feeding and jacking pipes; 18. rotating the nail feeding mechanism; 19. hexagonal nut positioning mechanism.

Detailed Description

The following detailed description is given to the embodiments of the present invention with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise. 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.

As shown in fig. 1 and fig. 2, the utility model discloses an automatic nut riveting equipment of an embodiment, including installation backplate 11, be provided with blind rivet nut rifle 12 on the installation backplate 11. A rotary nailing mechanism 18 is also arranged on the mounting back plate 11 at one side of the blind rivet nut gun 12, and the rotary nailing mechanism 18 comprises a double-rod cylinder 13 fixed on the mounting back plate 11. In this embodiment, a hexagonal nut positioning mechanism 19 for adjusting the angle of the blind rivet nut is installed on the piston rod at the bottom end of the double-rod cylinder 13, a feeding push pipe 17 is further arranged above the hexagonal nut positioning mechanism 19, the feeding push pipe 17 is connected with an automatic blind rivet nut conveying mechanism (not shown in the figure), and the blind rivet nut is conveyed into the hexagonal nut positioning mechanism through the feeding push pipe 17.

The piston rod at the top end of the double-rod cylinder 13 is sleeved with a rotary drum 15 at the outer part, and a guide groove 16 is formed in the side wall of the rotary drum 15. A guide rod 14 is further disposed on a piston rod at the top end of the double-rod cylinder 13, and when the double-rod cylinder 13 works, the piston rod moves and drives the guide rod 14 to slide along the guide groove 16. As shown, the guide grooves 16 are curved along the side wall of the drum 15 so that the piston rod can rotate when moving vertically, thereby deflecting the hex nut positioning mechanism 19 toward the blind nut runner 12. When the automatic riveting nut device works, the rivet nut is conveyed to the hexagonal nut positioning mechanism 19 from the feeding jacking pipe 17, and the angle of the rivet nut is adjusted by the hexagonal nut positioning mechanism 19, so that the angle of the rivet nut is determined. The double-rod cylinder 13 works to drive the hexagonal nut positioning mechanism 19 to one side of the blind rivet nut gun 12, so that the positioned blind rivet nut is conveyed to the gun head position of the blind rivet nut gun 12, and the blind rivet nut gun 12 automatically takes out the rivet.

By installing the hexagonal nut positioning mechanism 19 on the automatic rivet nut device, the hexagonal rivet nut with a determined angle can be taken by the rivet nut gun 12, so that the hexagonal rivet nut can be accurately and quickly inserted into a hexagonal hole in a product.

As shown in fig. 3 and 4, the hexagonal nut positioning mechanism 19 includes a first positioning block 1 and a second positioning block 2 which are oppositely disposed, a groove 3 is disposed on each of the opposite surfaces between the first positioning block 1 and the second positioning block 2, and the groove 3 extends to the top side wall of the first positioning block 1 or the second positioning block 2. Recess 3 comprises holding tank 4 and the constant head tank 5 of being connected with holding tank 4 by holding tank 4, and wherein holding tank 4 sets up to cambered surface section 41, and constant head tank 5 comprises straight section 51 and inclined plane section 52, and cambered surface section 41, straight section 51 and inclined plane section 52 connect gradually and have formed recess 3. Hexagonal nut positioning mechanism still includes drive arrangement 8 of drive first locating piece 1 and the relative slip of second locating piece 2, and in this embodiment, drive arrangement 8 sets up to the finger cylinder, and first locating piece 1 and second locating piece 2 are fixed respectively on two clamping jaws of finger cylinder.

As shown in fig. 3, in the initial state, the accommodating grooves 4 of the first positioning block 1 and the second positioning block 2 are opposite to each other, the feeding jacking pipe 17 conveys the blind rivet nut between the two accommodating grooves 4, and the positioning grooves 5 of the first positioning block 1 and the second positioning block 2 are respectively located on two sides of the hexagon nut. Then the work of finger cylinder, two clamping jaws drive first locating piece 1 and the second locating piece 2 of finger cylinder are close to each other and slide to finally make locating slot 5 on first locating piece 1 and the second locating piece 2 and rivet nut's hexagonal limit butt, rivet nut is fixed a definite angle by locating slot 5 this moment. In order to accurately position the blind rivet nut, an included angle between the straight section 51 and the inclined section 52 may be adapted to an edge of the hexagonal nut, so that the straight section 51 and the inclined section 52 may abut against adjacent sides of the hexagonal nut, respectively.

As shown in fig. 3 and 4, in the present embodiment, the first positioning block 1 and the second positioning block 2 further have mounting holes 7 penetrating through the side portions thereof, and the mounting holes 7 communicate with the grooves 3. Hexagonal nut positioning mechanism still includes inductor 6, and inductor 6's one end sets up in mounting hole 7 for whether have hexagonal nut in detecting recess 3, thereby improve the accuracy of automatic nut equipment work of riveting. In addition, in this embodiment, the installation hole 7 is configured as a waist-shaped hole, so that the sensor 6 can sense the blind rivet nut in the groove 3 after positioning, thereby ensuring that the blind rivet nut is also at an initial position after positioning, and the blind rivet nut can be accurately taken by the blind rivet nut gun 12 when the hexagonal nut positioning mechanism 19 rotates to the blind rivet nut gun 12.

As shown in fig. 4, in order to further improve the accuracy and stability, in the present embodiment, a guide hole 9 is provided on a side wall of the first positioning block 1, and a guide rod 10 is provided on the second positioning block 2. When first locating piece 1 and second locating piece 2 relative slip, guide bar 10 can slide in guide hole 9 to slide to first locating piece 1 and second locating piece 2 plays spacing and the effect of direction, so that improve the stability and the accuracy of split riveting nut location.

The implementation principle of the embodiment is as follows: the feeding jacking pipe 17 conveys the rivet nuts to the hexagon nut positioning mechanism 19, and in the initial state, the hexagon nuts fall between the accommodating grooves 4 on the first positioning block 1 and the second positioning block 2. The finger cylinder drives the first positioning block 1 and the second positioning block 2 to slide relatively, so that the positioning grooves 5 on the first positioning block 1 and the second positioning block 2 clamp and position the hexagonal edge of the rivet nut, and the rivet nut is positioned at a determined angle. Then the double-rod cylinder 13 works, under the guiding action of the guide grooves 16 on the rotary drum 15, the hexagonal nut positioning mechanism 19 deflects towards one side of the blind rivet nut gun 12, so that the positioned blind rivet nut is conveyed to the position of the gun head of the blind rivet nut gun 12, and the blind rivet nut gun 12 can take the blind rivet nut with a determined angle, so that the blind rivet nut can be quickly and accurately inserted into a hexagonal hole in a product.

Hexagonal blind rivet nut can be fixed a position to hexagonal blind rivet nut by hexagonal nut positioning mechanism 19 to make automatic rivet nut equipment can rivet hexagonal blind rivet nut, compensatied prior art's vacancy. Of course, hexagonal nut positioning mechanism in this application can also be used for fixing a position ordinary hexagonal nut except can fixing a position hexagonal rivet nut.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The hexagonal nut positioning mechanism is characterized by comprising a first positioning block (1) and a second positioning block (2) which are oppositely arranged, wherein grooves (3) are formed in opposite surfaces between the first positioning block (1) and the second positioning block (2), and each groove (3) is formed by an accommodating groove (4) and a positioning groove (5) connected with the accommodating groove (4); the hexagonal nut is positioned between the accommodating grooves (4) of the first positioning block (1) and the second positioning block (2), and the positioning grooves (5) on the first positioning block (1) and the second positioning block (2) are respectively positioned on two sides of the hexagonal nut;

the hexagonal nut positioning mechanism further comprises a driving device (8), wherein the driving device (8) drives the first positioning block (1) and the second positioning block (2) to slide relatively, so that the positioning grooves (5) are abutted to hexagonal edges of the hexagonal nut.

2. The hexagonal nut positioning mechanism according to claim 1, wherein the receiving groove (4) comprises an arc-shaped section (41), the positioning groove (5) comprises a straight section (51) and a slope section (52), and the arc-shaped section (41), the straight section (51) and the slope section (52) are connected in sequence.

3. The hexagonal nut positioning mechanism according to claim 2, wherein the angle between the straight section (51) and the inclined section (52) is adapted to the angle of the hexagonal nut such that the straight section (51) and the inclined section (52) abut respectively adjacent sides of the hexagonal nut.

4. The hexagonal nut positioning mechanism according to claim 1, wherein the groove (3) extends to a sidewall of the first positioning block (1) or the second positioning block (2).

5. The hex nut positioning mechanism according to claim 4, further comprising an inductor (6), wherein the inductor (6) is configured to detect whether there is a hex nut in the recess (3).

6. The hexagonal nut positioning mechanism according to claim 5, wherein the first positioning block (1) and/or the second positioning block (2) are further provided with mounting holes (7) in a penetrating manner, the mounting holes (7) are communicated with the grooves (3), and one end of the inductor (6) is located in the mounting holes (7).

7. A hexagonal nut positioning mechanism according to claim 6, characterized in that the mounting hole (7) is provided as a kidney-shaped hole.

8. The hexagonal nut positioning mechanism according to claim 1, wherein the driving device (8) is configured as a finger cylinder, and the first positioning block (1) and the second positioning block (2) are respectively mounted on two jaws of the finger cylinder.

9. The hexagonal nut positioning mechanism according to claim 8, wherein a guide hole (9) is further provided on the first positioning block (1) and/or the second positioning block (2), and the hexagonal nut positioning mechanism further comprises a guide rod (10); the guide rod (10) is arranged in the guide hole (9), and the first positioning block (1) and/or the second positioning block (2) slide along the guide rod (10).

10. An automatic nut riveting apparatus having the hexagonal nut positioning mechanism of any one of claims 1-9.