CN115106474B

CN115106474B - Automatic nailing mechanism capable of switching rivet types

Info

Publication number: CN115106474B
Application number: CN202110290583.6A
Authority: CN
Inventors: 宣东军; 丁君; 栾承文; 董胜军; 车廷建
Original assignee: Dalian Zixi Technology Engineering Co ltd
Current assignee: Dalian Zixi Technology Engineering Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2024-06-14
Anticipated expiration: 2041-03-18
Also published as: CN115106474A

Abstract

The invention discloses an automatic rivet feeding mechanism capable of switching rivet types, and relates to an automatic rivet feeding mechanism, which comprises a rivet blowing device, two groups of rivet feeding pipes, a rivet feeding pipe locking plate, a rivet discharging transition block, a rodless cylinder, a switching plate, a pneumatic sliding table, parallel opening and closing gas claws, a pair of clamping claws and a damper, wherein the rivet feeding pipe locking plate is arranged on the rivet feeding pipe; compared with the same type of mechanism, the invention has the advantages of small volume, high integration level, flexible application, and capability of replacing rivets with different specifications, so that the rivet is more flexible and efficient in the application process, and can be integrated into a robot system for use, thereby greatly improving the application scene and meeting the requirements in different scenes.

Description

Automatic nailing mechanism capable of switching rivet types

Technical Field

The invention relates to an automatic nail feeding mechanism, in particular to an automatic nail feeding mechanism capable of switching rivet types, which is used for automatically feeding rivets of different types.

Background

The traditional rivet feeding technology is generally to manually feed nails or semi-automatically feed nails, and then work by using a rivet gun or an automatic rivet pulling machine. The manual rivet feeding device of the hand riveter can only rivet products with small rivet quantity, and has low efficiency for products which need mass production and cannot be used. The automatic rivet pulling machine is used as a single device, has large volume, limited application scene and insufficient flexibility, does not realize automation, and cannot meet the requirements of some specific occasions. And the traditional blind rivet nailing technology can only carry out nailing on rivets with one type or limited diameter range at a time. Therefore, the automatic rivet feeding device is expected to improve production efficiency, reduce structural volume, enhance flexibility, expand application scenes and be compatible with various types of rivet pulling on the premise of meeting automatic rivet feeding requirements by changing the mechanical structural design.

Disclosure of Invention

The invention aims to provide an automatic rivet feeding mechanism capable of switching rivet types so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the automatic rivet feeding mechanism comprises a first rivet feeding pipe and a second rivet feeding pipe which are arranged side by side left and right, wherein the rear ends of the first rivet feeding pipe and the second rivet feeding pipe are respectively connected with a rivet blowing device, the front ends of the first rivet feeding pipe and the second rivet feeding pipe are respectively connected with a first rivet feeding pipe locking plate and a second rivet feeding pipe locking plate which are arranged side by side left and right, the other ends of the first rivet feeding pipe locking plate and the second rivet feeding pipe locking plate are respectively connected with a first rivet discharging transition block and a second rivet discharging transition block which are arranged side by side left and right, the centers of the first rivet discharging transition block and the second rivet discharging transition block are respectively provided with a horizontal circular through hole, openings are arranged above the through holes, the first rivet feeding pipe locking plate, the second rivet feeding pipe locking plate, the first rivet discharging transition block and the second rivet discharging transition block are jointly fixed on a switching plate, the switching plate is installed on the rodless cylinder, the center department of the vertical side of front side of rodless cylinder is fixed with the fixed bolster that the level set up, the left end of fixed bolster be fixed with the backplate of the vertical setting of fixed bolster, be fixed with vertical pneumatic slip table on the right flank of backplate, the end of the piston rod that pneumatic slip table lower extreme stretches out is fixed at the horizontal part of L type support, the leading flank of the vertical part of L type support is fixed with the convex h type support of forward side, the vertical decurrent lateral wall inboard of the convex of forward side of h type support is fixed with the parallel switching gas claw that the level set up, the right-hand member of parallel switching gas claw is fixed with the paired clamping jaw that is used for pressing from both sides tight rivet.

Further, the opening of the upper part of the through hole of the first nail discharging transition block and the opening of the upper part of the through hole of the second nail discharging transition block are provided with split opening plates, and the opening plates can be automatically closed by driving of the coil springs.

Preferably, when the pair of clamping jaws descend to the lowest position, the pair of clamping jaws are located at the front sides of the first nail discharging transition block and the second nail discharging transition block, and the centers of the pair of clamping jaws and the through hole of the first nail discharging transition block or the axis of the through hole of the second nail discharging transition block after position switching are in the same straight line.

Further, a first damper is fixed at the horizontal position where the h-shaped bracket is connected with the vertical downward side wall protruding from the front side.

Further, the top end of the back plate is fixed with a second damper at a position close to the front side surface through a horizontal fixing part horizontally extending to the front side.

Compared with the prior art, the invention has the beneficial effects that:

1. The efficiency is improved. The problem of inefficiency in the traditional nail mode is overcome, the speed of nailing of 20 rivets per minute can be reached, production efficiency is greatly improved.

2. The rivet compatibility range is effectively improved. Many different types of rivets can be nailed. A pipeline can be adapted to rivets with different diameters within a certain diameter range, and the invention adopts a double pipeline design, so that the adaptation range of the rivet is improved, and the requirements in most cases can be met.

3. Small volume, high integration level and flexible application. The volume is much smaller than that of the mechanisms of the same type, so that the robot can be used more flexibly and efficiently and can be integrated in a robot system, the application scene is greatly improved, and the requirements under different scenes can be met.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of FIG. 1 at A;

FIG. 3 is a schematic view of FIG. 1 at B;

FIG. 4 is a schematic view of a staple ejection transition block, an opening and closing plate, and a coil spring;

FIG. 5 is a schematic view of an h-bracket, parallel open and close air fingers, a pair of jaws, a first damper;

In the figure: the screw feeding device comprises the following components of a screw feeding pipe I-11, a screw feeding pipe locking plate I-12, a screw feeding transition block I-13, an opening and closing plate I-14, a coil spring I-15, a screw feeding pipe II-21, a screw feeding pipe locking plate II-22, a screw feeding transition block II-23, a switching plate I-3, a rodless cylinder I-4, a fixed support I-41, a back plate I-42, a pneumatic sliding table I-51, an L-shaped support I-52, an h-shaped support I-53, a parallel opening and closing air claw I-54, a pair of clamping claws I-55, a first damper I-56 and a second damper I-57.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is a schematic diagram of FIG. 1 at A; FIG. 3 is a schematic view of FIG. 1 at B; FIG. 4 is a schematic view of a staple ejection transition block, an opening and closing plate, and a coil spring; fig. 5 is a schematic view of an h-shaped bracket, parallel open-close air pawls, a pair of clamping jaws and a first damper.

The invention provides an automatic rivet feeding mechanism capable of switching rivet types, which comprises a first rivet feeding pipe 11 and a second rivet feeding pipe 21 which are arranged side by side left and right, wherein the rear ends of the first rivet feeding pipe 11 and the second rivet feeding pipe 21 are respectively connected with a rivet blowing device, rivets required to be fed into the first rivet feeding pipe 11 or the second rivet feeding pipe 21 respectively, the front ends of the first rivet feeding pipe and the second rivet feeding pipe are respectively connected with a first rivet feeding pipe locking plate 12 and a second rivet feeding pipe locking plate 22 which are arranged side by side left and right, the other ends of the first rivet feeding pipe locking plate 12 and the second rivet feeding pipe locking plate 22 are respectively connected with a first rivet discharging transition block 13 and a second rivet discharging transition block 23 which are arranged side by side left and right, the centers of the first rivet discharging transition block 13 and the second rivet discharging transition block 23 are respectively provided with horizontal round through holes, openings are arranged above the through holes, and are provided with opposite opening plates 14, and the opening plates 14 are automatically closed by driving coil springs 15.

The nail feeding pipe locking plate I12, the nail feeding pipe locking plate II 22, the nail discharging transition block I13 and the nail discharging transition block II 23 are jointly fixed on the switching plate 3, the switching plate 3 is installed on the rodless cylinder 4, the rodless cylinder 4 can drive the switching plate 3 to move left and right along the rodless cylinder 4, so that the nail feeding pipe locking plate I12, the nail discharging transition block I13, the nail feeding pipe locking plate II 22 and the nail discharging transition block II 23 fixed on the switching plate 3 are driven to switch positions in a left and right moving mode.

The center of the front vertical side of the rodless cylinder 4 is fixedly provided with a fixing support 41 which is horizontally arranged, the leftmost end of the fixing support 41 is fixedly provided with a backboard 42 which is vertically arranged with the fixing support 41, the right side of the backboard 42 is fixedly provided with a vertical pneumatic sliding table 51, the tail end of a piston rod which extends out of the lower end of the pneumatic sliding table 51 is fixedly arranged at the horizontal part of an L-shaped support 52, the front side of the vertical part of the L-shaped support is fixedly provided with an h-shaped support 53 which protrudes towards the front, the inner side of the side wall which protrudes towards the front of the h-shaped support 53 and is vertically downwards is fixedly provided with a parallel opening and closing air claw 54 which is horizontally arranged, the right end of the parallel opening and closing air claw 54 is fixedly provided with a pair of clamping claws 55 which are used for clamping rivets, when the pair of clamping claws 55 descend to the lowest position, the centers of the pair of clamping claws are exactly positioned at the front sides of the first nail-out transition block 13 and the second nail-out transition block 23, and the center of the through hole of the second nail-out transition block 23 after position switching are positioned on the same straight line.

A first damper 56 is fixed at the horizontal position where the h-shaped bracket 53 is connected with the vertical downward side wall protruding from the front side, and is used for clamping the rivet when the rivet is clamped.

The top end of the back plate 42 is fixed with a second damper 57 at a position close to the front side surface through a horizontal fixing part horizontally extending towards the front side, and the second damper is used for limiting the upward movement limit of the h-shaped bracket 53 so as to ensure the feeding accuracy.

When the rivet is used, firstly, the rivet is blown out by the rivet blowing device, and then sequentially passes through the rivet feeding pipe I11, the rivet feeding pipe locking plate I12 and the rivet discharging transition block I13 to reach the lower part of the opening plate 14 under the action of air pressure, and one end of the rivet is exposed; meanwhile, the rodless cylinder 4 drives the switching plate 3 to drive the first nail discharging transition block 13 to be aligned with the pair of clamping jaws 55;

Secondly, the parallel opening and closing air claws 54 drive the paired clamping claws 55 to clamp one exposed end of the rivet, the pneumatic sliding table 51 starts to act, the L-shaped bracket 52 is driven by the piston rod to drive the h-shaped bracket 53 and then drive the clamping claws 55 to clamp the rivet to start to move upwards, at the moment, the opening and closing plate 14 is forced to open, and after the rivet is completely separated, the opening and closing plate 14 is automatically closed by the coil spring 15; then the pneumatic sliding table 51 continues to drive the rivet to be lifted upwards to a specified position for the rivet feeding operation;

Thirdly, when rivets of other types are required to be replaced for supplying nails, blowing out the rivets of the new types through a nail blowing device, and then sequentially passing through a second nail feeding pipe 21, a second nail feeding pipe locking plate 22 and a second nail discharging transition block 23 under the action of air pressure to expose one end of each rivet; meanwhile, the rodless cylinder 4 drives the switching plate 3 to drive the second nail discharging transition block 23 to be aligned with the pair of clamping jaws 55;

fourth, repeating the second step to feed nails.

Through the working mode, the automatic rivet feeding operation of rivets can be rapidly carried out, the rivet feeding operation is rapid and stable, the problem of low efficiency in the traditional rivet feeding mode is effectively solved, the rivet feeding speed of 20 rivets per minute can be achieved through on-site actual use detection, and the rivet feeding efficiency is greatly improved; meanwhile, through the action of the rodless cylinder 4, rivets of different specifications can be replaced, and the riveting operation can be performed on rivets of various different types. A rivet supply pipeline can be adapted to rivets with different diameters within a certain diameter range, and the invention adopts a double pipeline design, so that the adaptation range of the rivet is improved, and the requirements in most cases can be met.

Compared with the same type of mechanism, the invention has the advantages of small volume, high integration level and flexible application, so that the invention is more flexible and efficient in the application process, and meanwhile, the invention can be integrated into a robot system for use, so that the application scene is greatly improved, and the requirements under different scenes can be met.

In addition, the design of the opening plate 14 is emphasized, the conventional rivet taking mode is to axially move forwards along the pipeline direction, and the rivet is moved upwards to perform the rivet feeding operation after completely leaving the rivet outlet transition block I13 or the rivet outlet transition block II 23; the axial movement is increased, so that the complexity of the system is increased; in the invention, the design of the opening and closing plate 14 is adopted, the axial movement is not required to be increased, the paired clamping jaws 55 can directly move upwards after clamping rivets, the rivets are taken out through the opening and closing action of the opening and closing plate 14, the structure of the system is simplified, and the volume of the system is reduced.

In the description of the present invention, it should be understood that the terms "side-by-side," "rear," "front," "upper," "front," "left," "right," "upward," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

While embodiments of the invention have been illustrated and described, it will be apparent that the embodiments described are merely some, but not all embodiments of the invention. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments which may be obtained from numerous changes, modifications, substitutions and alterations of these embodiments without departing from the spirit and principles of the present invention are within the scope of the present invention.

Claims

1. An automatic nail feeding mechanism capable of switching rivet types, which is characterized in that: the utility model provides a nail feeding device, which comprises a nail feeding pipe I (11) and a nail feeding pipe II (21) which are arranged side by side left and right, the rear ends of the nail feeding pipe I (11) and the nail feeding pipe II (21) are respectively connected with a nail blowing device, the front ends of the nail feeding pipe I (12) and the nail feeding pipe II (22) which are arranged side by side left and right are respectively connected with the same nail discharging transition block I (13) and the same nail discharging transition block II (23) which are arranged side by side left and right, the centers of the nail discharging transition block I (13) and the nail discharging transition block II (23) are respectively provided with a horizontal circular through hole, the upper parts of the through holes are provided with openings, the nail feeding pipe I (12), the nail feeding pipe II (22), the nail discharging transition block I (13) and the nail discharging transition block II (23) are jointly fixed on a switching plate (3), the switching plate (3) is installed on a rod-free cylinder (4), the vertical sliding table (41) is fixedly arranged on the side surface of a vertical sliding table (41) which is fixedly arranged on the left side of a vertical sliding table (41), the tail end of a piston rod extending out of the lower end of the pneumatic sliding table (51) is fixed at the horizontal part of an L-shaped bracket (52), the front side surface of the vertical part of the L-shaped bracket is fixed with an h-shaped bracket (53) protruding towards the front side, the inner side of the vertical downward side wall protruding towards the front side of the h-shaped bracket (53) is fixed with a parallel opening and closing air claw (54) horizontally arranged, and the right end of the parallel opening and closing air claw (54) is fixed with a pair of clamping claws (55) for clamping rivets; the opening and closing plates (14) which are oppositely opened are arranged at the openings above the through holes of the first nail discharging transition block (13) and the second nail discharging transition block (23), and the opening and closing plates (14) are automatically closed by being driven by the coil springs (15); when the paired clamping jaws (55) descend to the lowest position, the paired clamping jaws are positioned at the front sides of the first nail discharging transition block (13) and the second nail discharging transition block (23), and the centers of the paired clamping jaws and the through holes of the first nail discharging transition block (13) or the through holes of the second nail discharging transition block (23) after position switching are in the same straight line.

2. An automatic stapling mechanism of switchable rivet type according to claim 1, characterized in that: a first damper (56) is fixed at the horizontal position where the h-shaped bracket (53) is connected with the vertically downward side wall protruding from the front side.

3. An automatic stapling mechanism of switchable rivet type according to claim 2, characterized in that: a second damper (57) is fixed to the top end of the back plate (42) near the front side surface by a horizontal fixing portion extending horizontally toward the front side.