CN201089141Y

CN201089141Y - Automatic nail feeder joint

Info

Publication number: CN201089141Y
Application number: CNU2007200427568U
Authority: CN
Inventors: 崔裕翔
Original assignee: BST ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: BST ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2007-08-10
Filing date: 2007-08-10
Publication date: 2008-07-23
Anticipated expiration: 2017-08-10

Abstract

A claw head for an automatic nail feeding device consists of a claw head seat, elastic elements and at least two clamping claws. The clamping claws are arranged evenly and circumferentially around the central line of a nail dropping passage, the claw head seat is provided with hinge points corresponding to each clamping claw, each clamping claw is hinged with the claw head seat, each clamping claw is respectively hinged on the respective radial wobbling and opening closing direction of each clamping claw, and each two adjacent clamping claws are connected with each other through one of the elastic elements on the circumference of the wobbling and opening closing positions of the two clamping claws. The nail dropping passage is arranged at the center of the claw head seat, a first arc-shaped groove is arranged along the passage direction on the inner side surface of each clamping claw corresponding to the tail end of the passage, the tail end of each first groove is provided with an inclined surface or a conical surface, the first grooves join together to form the nail dropping passage when the clamping claws heal up, and the inclined surfaces or conical surfaces join together when the clamping claws heal up to form a positioning structure capable of allowing the nail part of a screw or rivet to pass but preventing the head part of the screw or rivet from passing. The utility model solves the problems of the stability and reliability of the cooperation between an automatic feeding screw and an electric screw driver in a high-speed status.

Description

Automatic feeding device for nail pawl head

Technical field

The utility model relates to a kind of automatic screw lock and pays machine, screw locking machine device people, automatic riveting machine, automatic riveting machine people's etc. automatic locking screw or riveting equipment, be specifically related to a kind of pawl head of automatic feeding device for nail, its effect is that screw or the rivet that will send here are automatically temporarily located, and pays or the process of riveting set release screw or rivet gradually with electronic, pneumatic screw driver lock.

Background technology

In structural designs such as household appliances, engineering goods and low-pressure electronic equipment product, adopting screw to connect is the most common means, and therefore in the assembling process of these products, twisting the lock screw just becomes the most basic a kind of operation.As everyone knows, adopting the manual screw cutter in assembly technology in the past is a kind of original manual manipulation mode.Along with development of technology, people had invented the electric screw driver that adapts to production in enormous quantities and mechanized operation afterwards.Appearing as of this electric tool enhanced productivity, and reduces labour intensity and played positive impetus.Yet, use this electric tool, still need to grasp screw, and put into screw, and then use electric screw driver to twist the lock screw with manual engagement.From practical operation, this mode still needs hand to cooperate on the one hand, can't realize sending nail automatically, so efficient is not high; For some less screws (such as M1～M3 screw), clutch and be placed on the screw mouth on the other hand, difficulty is bigger when being screwed into electric screw driver.

Quickening along with the modernization construction paces, the demand of electric equipment products, household appliances constantly rises, mechanization and automated production, assembling line roll up, adopt staff to grasp screw again in this situation, the mode of twisting lock with electric screw driver far away can not the adaline toolization and the needs of automatic mass production, assembling.Therefore, how to solve the problem of sending nail to match automatically and become the problem that those skilled in the art extremely pay close attention to electric locking.

Chinese patent CN2813218Y discloses the utility model patent that a name is called " sending the nail electric screw driver automatically ".The pawl header structure of this patent be the head at beeline channel be provided with one can be towards the locating piece of sideshake, this locating piece stretches into the beeline channel from side direction under the flexible member effect, automatically the screw of sending here is positioned at the locating piece place of beeline channel, and pays process release screw gradually with the electric screw driver lock.Though the technical scheme of above-mentioned patent disclosure can solve the problem that screw and electric screw driver cooperatively interact, but because the monolateral swing work of locating piece, make the positioning accuracy and the uniformity of screw have deficiency, pay a speed, will break down in case improve the screw lock.

Summary of the invention

The utility model provides a kind of automatic feeding device for nail pawl head, its objective is to solve stability and the integrity problem that the screw sent here automatically or rivet cooperate with electronic, pneumatic tool accordingly under fast state.

For achieving the above object, the technical solution adopted in the utility model is: a kind of automatic feeding device for nail pawl head, it is characterized in that: mainly form by pawl headstock, flexible member and at least two jaws, each jaw is circumferentially evenly being arranged around falling to following closely channel centerline, corresponding each jaw is provided with pin joint on the pawl headstock, each jaw is all hinged with the pawl headstock, and each jaw is hinged on radially wobbling on the opening and closing direction separately respectively, circumferentially connecting by flexible member at swing opening and closing position between two adjacent jaws; Pawl headstock center is provided with the nail passage, each jaw medial surface upper edge channel direction of this channel end correspondence is provided with first deep-slotted chip breaker, the end of first deep-slotted chip breaker is provided with the inclined-plane or the conical surface, each first deep-slotted chip breaker closes up under the state amalgamation at jaw and constitutes one and fall to following closely passage, and each inclined-plane or the conical surface close up under the state amalgamation at jaw and constitute one and allow screw or rivet nail portion by limiting the location structure that screw or rivet head are passed through.

Related content in the technique scheme is explained as follows:

1, in the such scheme, described " feeding device for nail pawl head automatically " is not only applicable to AUTOMATIC SCREWING MACHINE, is equally applicable to automatic riveting machine, rivet driver etc.

2, in the such scheme, described " falling to following closely channel centerline " is meant that each jaw closes up the center line that falls to following closely passage that amalgamation constitutes under the state, with the dead in line of AUTOMATIC SCREWING MACHINE beeline channel.

3, in the such scheme, described " falling to following closely channel centerline circumferential " is meant the circumferencial direction of nail passage; " swing opening and closing position circumferentially " be meant each jaw with grab seat hinged after, the circumferencial direction at each jaw swing opening and closing position, and " radially wobbling the opening and closing direction " is meant that each jaw does the diametric(al) of swing opening and closing.

4, in the such scheme, described " end " is meant screw or the rivet end on the direction of advance that falls to following closely in the passage.

5, in the such scheme, the inclined-plane of described each jaw or conical surface end are provided with second deep-slotted chip breaker, and each second deep-slotted chip breaker closes up under the state amalgamation at jaw and constitutes one and allow screw or rivet nail portion by limiting the passage that screw or rivet head are passed through.

6, in the such scheme, described flexible member adopts spring, and spring is connected between two adjacent jaws, and acts on circumferentially.

7, in the such scheme, described flexible member adopts elastic ring, and the periphery of each jaw amalgamation integral body is circumferentially with groove, and elastic ring is located in this groove, from circumferential amalgamation integral body of tying each jaw of nation.

8, in the such scheme, described elastic ring is rubber ring or turn.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, the utility model is simple in structure, be skillfully constructed, especially the design of the location structure of the conical surface of two fixture blocks formation, solve stability and integrity problem that the screw sent here automatically under the fast state and electric screw driver cooperatively interact especially, compared with prior art had substantive distinguishing features and conspicuousness technological progress.

2, after the utility model and AUTOMATIC SCREWING MACHINE and the supporting use of material feeder structure, compare with existing electric screw driver, operating efficiency obviously improves, and when particularly operating the Screw of M1～M3, more can embody its advantage.

3, the utility model is fit to the assembling line of mechanization and automation mechanized operation.

Description of drawings

Accompanying drawing 1 is the utility model embodiment 1 structure cutaway view;

Accompanying drawing 2 is the utility model embodiment 1 working state schematic representation (this figure is for sending the spike attitude automatically);

Accompanying drawing 3 is the utility model embodiment 1 another working state schematic representation (this figure is the electric locking state);

Accompanying drawing 4 is embodiment 2 partial schematic diagrams.

In the above accompanying drawing: 1, pawl headstock; 2, jaw; 3, pin joint; 4, fall to following closely passage; 5, groove; 6, elastic ring; 7, first deep-slotted chip breaker; 8, the conical surface; 9, second deep-slotted chip breaker; 10, screwdriver; 11, spring.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one:

As shown in Figure 1, a kind of AUTOMATIC SCREWING MACHINE pawl head, by pawl headstock 1, rubber ring 5, two jaws 2 are formed with outer valve jacket (not drawing among the figure), two jaws 2 are evenly arranged in the both sides of nail passage 4, corresponding two jaws 2 are provided with pin joint 3 on the pawl headstock 1, two jaws 2 are all hinged with pawl headstock 1, and each jaw 2 is hinged on radially wobbling on the opening and closing direction separately respectively, the periphery of two jaw 2 amalgamation integral body is circumferentially with groove 5, elastic ring 6 (elastic ring 6 can also can be turn for rubber ring) is located in this groove 5, amalgamation integral body from two jaws 2 of circumferential bundle nation, pawl headstock 1 center is provided with nail passage 4, two jaws, the 2 medial surface upper edge channel direction of this channel end correspondence are provided with first deep-slotted chip breaker 7, the end of first deep-slotted chip breaker 7 is provided with the conical surface 8, the conical surface 8 ends are provided with second deep-slotted chip breaker 9, two first deep-slotted chip breakers 7 close up under the state amalgamation at jaw and constitute one and fall to following closely passage 4, two conical surfaces 8 close up under the state amalgamation at jaw 2 and constitute one and allow screw nail portion by limit the location structure that screw head passes through, and two second deep-slotted chip breakers 9 close up at jaw that amalgamation constitutes a permission screw nail portion by limiting the passage that screw head passes through under the state.The pawl head is fixedly connected on the shell 15 of AUTOMATIC SCREWING MACHINE by outer valve jacket.

During work, as shown in Figures 2 and 3, having dropped to detent mechanism place that two conical surfaces 8 constitute via the screw that send nail passage (not drawing among the figure) to enter nail passage 4 is obstructed and stops and go out to position at location structure, so that screwdriver 10 is by the recess of incision screw afterbody, when screwdriver 10 when falling to following closely passage 4 and move forward, screw head and screwdriver 10 give the conical surface 8 with the roof pressure effect, making two second deep-slotted chip breakers 9 close up the passage that amalgamation constitutes under the state at jaw pushes open to both sides, thereby screw head passes through in passage, and screwdriver 10 is screwed into screw in the screw hole smoothly.

Embodiment two:

As shown in Figure 5, a kind of AUTOMATIC SCREWING MACHINE pawl head, it is by the spring 11 that acts on circumferentially and be connected between two adjacent jaws 2 that it is circumferentially fixing by three pawl folders 2, other positions and embodiment 1 are together.

Above embodiment only illustrates that to the screw user mode the utility model is equally applicable to rivet.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1. automatic feeding device for nail pawl head, it is characterized in that: mainly form by pawl headstock, flexible member and at least two jaws, each jaw is circumferentially evenly being arranged around falling to following closely channel centerline, corresponding each jaw is provided with pin joint on the pawl headstock, each jaw is all hinged with the pawl headstock, and each jaw is hinged on radially wobbling on the opening and closing direction separately respectively, circumferentially connecting by flexible member at swing opening and closing position between two adjacent jaws; Pawl headstock center is provided with the nail passage, each jaw medial surface upper edge channel direction of this channel end correspondence is provided with first deep-slotted chip breaker, the end of first deep-slotted chip breaker is provided with the inclined-plane or the conical surface, each first deep-slotted chip breaker closes up under the state amalgamation at jaw and constitutes one and fall to following closely passage, and each inclined-plane or the conical surface close up under the state amalgamation at jaw and constitute one and allow screw or rivet nail portion by limiting the location structure that screw or rivet head are passed through.

2. automatic feeding device for nail pawl head according to claim 1, it is characterized in that: the inclined-plane of described each jaw or conical surface end are provided with second deep-slotted chip breaker, and each second deep-slotted chip breaker closes up under the state amalgamation at jaw and constitutes one and allow screw or rivet nail portion by limiting the passage that screw or rivet head are passed through.

3. automatic feeding device for nail pawl head according to claim 1 is characterized in that: described flexible member adopts spring, and spring is connected between two adjacent jaws, and acts on circumferentially.

4. automatic feeding device for nail pawl head according to claim 1 is characterized in that: described flexible member adopts elastic ring, and the periphery of each jaw amalgamation integral body is circumferentially with groove, and elastic ring is located in this groove, from circumferential amalgamation integral body of tying each jaw of nation.

5. automatic feeding device for nail pawl head according to claim 4, it is characterized in that: described elastic ring is rubber ring or turn.