CN114193699A

CN114193699A - Nail embedding device, nail embedding robot and nail embedding method

Info

Publication number: CN114193699A
Application number: CN202010988606.6A
Authority: CN
Inventors: 庄大庆; 李�杰; 卞绍凯; 张峥瑞; 桂洋; 戚家联; 宋和健
Original assignee: Fuzhun Precision Tooling Jiashan Co Ltd
Current assignee: Fuzhun Precision Tooling Jiashan Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-03-18
Anticipated expiration: 2040-09-18
Also published as: CN114193699B

Abstract

The utility model provides a bury nail device, bury nail robot and bury nail method for bury the reservation position in the mould with the nut, include supporting mechanism, bury nail mechanism and sensing mechanism, supporting mechanism is equipped with the installation passageway, bury nail mechanism and include fixed pipe, loose axle and elastic component, fixed pipe is fixed in the installation passageway, the loose axle slide set up in the fixed pipe, loose axle one end is equipped with buries nail portion, it is used for the card to bury nail portion and holds the nut, and the other end is used for connecting gas circuit equipment, gas circuit equipment is used for making bury and produce negative pressure or malleation in the nail portion to hold or blow off the nut, the elastic component support hold in bury nail portion with between the fixed pipe, sensing mechanism set up in the installation passageway and support by in the fixed pipe, sensing mechanism still is fixed in the loose axle. The nail burying device, the nail burying robot and the nail burying method can realize the automatic nail burying function.

Description

Nail embedding device, nail embedding robot and nail embedding method

Technical Field

The application relates to the technical field of product processing, in particular to a nail burying device, a nail burying robot and a nail burying method.

Background

In product processing, it is often necessary to use an injection molding process. In the injection molding process of the plastic part, a part of products containing thread features are generally processed by an automatic forming mode, but the thread structure formed by the mode has poor performance. To improve the performance of the thread structure, it is often necessary to embed an insert nut into the product. The traditional mode is put built-in nut in the mould through the manual work, then closes the membrane shaping, and the product is got to the manual work at last, buries the nail inefficiency and can't realize that automation buries the nail.

Disclosure of Invention

In view of the above, there is a need for a nail embedding device capable of realizing an automatic nail embedding function.

The embodiment of the application provides a bury nail device for bury the nut in the reservation position in the mould, include the supporting mechanism, bury nail mechanism and sensing mechanism, the supporting mechanism is equipped with the installation passageway, bury nail mechanism and include fixed pipe, loose axle and elastic component, fixed pipe is fixed in the installation passageway, the loose axle slides and sets up in the fixed pipe, loose axle one end is equipped with buries nail portion, it is used for the card to bury nail portion and hold the nut, the other end is used for connecting gas circuit equipment, gas circuit equipment is used for making bury and produces negative pressure or malleation in the nail portion to hold or blow off the nut, the elastic component supports and holds in bury nail portion with between the fixed pipe, sensing mechanism set up in the installation passageway and support and lean on in fixed pipe, sensing mechanism still is fixed in the loose axle, work as bury nail portion support hold the mould and relative when the fixed pipe slides, the sensing mechanism moves along with the movable shaft and generates a gap with the fixed pipe to generate a signal, and the gas circuit equipment receives the signal to switch negative pressure in the nail embedding part into positive pressure so as to blow the nut to a reserved position in the die.

Further, in some embodiments of this application, bury the nail mechanism and still include to insert, insert to inlay and locate in bury the nail portion, insert week side and be equipped with the gas circuit passageway, the gas circuit passageway corresponds the torus of nut tip.

Further, in some embodiments of this application, insert the protruding installation department and the bearing part that is equipped with respectively in both ends, the installation department reaches the bearing part is respectively the interference inlay locate in bury the nail portion, the installation department support hold in the loose axle is connected the passway mouth of gas circuit equipment, the bearing part is used for leaning on the nut.

Further, in some embodiments of this application, the installation department is equipped with the recess, the recess both ends are equipped with first opening, it is equipped with the second opening to bear the weight of portion week side, first opening with the second opening, with nail portion inner wall of burying forms the gas circuit passageway.

Further, in some embodiments of the present application, the sensing mechanism includes a stationary collar disposed in the mounting channel and abutting against the stationary tube, the stationary collar further secured to the movable shaft, and an inductor disposed within the stationary collar to induce a gap between the stationary collar and the stationary tube.

Further, in some embodiments of the present application, one end of the fixing tube is provided with a limiting portion, the nail embedding portion is convexly disposed on the movable shaft, and the elastic member abuts against between the nail embedding portion and the limiting portion.

Further, in some embodiments of this application, bury nail mechanism still includes spacer pin and guide bush, the spacer pin wear to locate on the fixed pipe and support and hold in bury nail portion week side, the guide bush passes through the spacer pin card is held in bury nail portion with between the fixed pipe.

The embodiment of this application still provides a bury nail robot, including foretell nail device that buries, still include support and arm, the support rotate connect in the arm, bury the nail device and connect the support tip is used for passing through the arm reaches the support will bury the nail device and remove reservation position in the mould.

The embodiment of the application also provides a nail embedding method, which applies the nail embedding robot to embed the nut into a reserved position in a mold, and comprises the following steps:

the nut is clamped in the nail embedding part, and negative pressure is generated in the nail embedding part to suck the nut;

the mechanical arm drives the nail embedding device to move and enables the nail embedding portion to be pressed against the die in an overpressure mode, the sensing mechanism follows the movable shaft to move and generate a gap with the fixed pipe, signals are generated, the gas circuit device receives the signals, positive pressure is generated in the nail embedding portion, and the nuts are blown out to the reserved position in the die.

Further, in some embodiments of the present application, the method for embedding nails further includes the following steps after the nut is blown out to a reserved position in the mold:

the mechanical arm drives the nail embedding device to move and enables the nail embedding part to abut against the nut in the die, so that whether the nut is in place or not is detected through the sensing mechanism.

According to the nail burying device, the nail burying robot and the nail burying method, negative pressure generated in the nail burying portion sucks the nut, when the nail burying portion abuts against the mold and slides relative to the fixed pipe, the sensing mechanism moves along with the movable shaft and generates a gap between the sensing mechanism and the fixed pipe to generate a signal, and the gas circuit device receives the signal to enable the negative pressure in the nail burying portion to be switched into positive pressure so as to blow the nut to a reserved position in the mold, so that an automatic nail burying function is achieved, and nail burying efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a nail embedding device according to an embodiment of the present application.

Fig. 2 is an exploded view of a nail embedding device according to an embodiment of the present disclosure.

Fig. 3 is a schematic cross-sectional view illustrating a nail embedding device according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of an insert according to an embodiment of the present application.

Fig. 5 is a schematic structural view of a nailing robot according to an embodiment of the present application.

Fig. 6 is a schematic flow chart of a nail burying method according to an embodiment of the present application.

Description of the main elements

Nailing device 100

Nail embedding robot 200

Support mechanism 10

Installation channel 11

Mounting surface 12

Mounting groove 13

Clamping part 14

Nail embedding mechanism 20

Fixed pipe 21

Movable shaft 22

Nail embedding part 221

Nail embedding cavity 222

Elastic member 23

Insert 24

Mounting part 241

Bearing part 242

Groove 243

First opening 244

Second opening 245

Stop pin 25

Guide bush 26

Gas circuit equipment 29

Sensor device 30

Securing collar 31

Inductor 32

Support 50

Mechanical arm 60

Forming machine 70

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application provides a bury nail robot, include foretell bury the nail device, still include support and arm, the support rotate connect in the arm, bury the nail device and connect the support tip is used for passing through the arm reaches the support will bury the nail device and remove reserve position in the mould.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the present application provides a nut embedding device 100 for embedding a nut in a predetermined position in a mold. The nail embedding device 100 comprises a supporting mechanism 10, a nail embedding mechanism 20 and a sensing mechanism 30. The nail embedding mechanism 20 and the sensing mechanism 30 are arranged in the supporting mechanism 10. The end of the nail embedding mechanism 20 is used for installing the nut, the sensing mechanism 30 is used for sensing the position of the nail embedding mechanism 20, and when the nail embedding mechanism 20 abuts against the mold, the sensing mechanism 30 generates a signal to embed the nut into a reserved position in the mold.

It is to be understood that the position where the nut is embedded is not limited to the mold, and may be other products or workpieces.

Referring to fig. 2 and fig. 3, the supporting mechanism 10 is provided with a mounting channel 11, and the mounting channel 11 is used for accommodating the nail burying mechanism 20 and the sensing mechanism 30. The support mechanism 10 is provided with a mounting surface 12 at the periphery thereof, which is oppositely arranged, so as to facilitate connection with other mobile equipment, such as a bracket or a rotating shaft.

In one embodiment, the support mechanism 10 is tubular, and the support mechanism 10 is provided with a mounting groove 13, wherein the mounting groove 13 extends axially and radially along the support mechanism 10 and divides a portion of the support mechanism 10 into two clamping portions 14. A fastener is further arranged between the two clamping parts 14 to clamp and fix the nail embedding mechanism 20 in the installation channel 11. It will be appreciated that in other embodiments, the fixing tube 21 is fixed in the mounting channel 11 by welding, gluing or integral molding.

The nail embedding mechanism 20 comprises a fixed pipe 21, a movable shaft 22 and an elastic piece 23. The fixing tube 21 is fixed in the installation channel 11, and one end of the fixing tube 21 is positioned outside the supporting mechanism 10 so as to extend the embedding depth.

The movable shaft 22 is slidably disposed in the fixed pipe 21, one end of the movable shaft 22 is provided with a nail embedding portion 221, and a nail embedding cavity 222 is disposed in the nail embedding portion and used for clamping the nut. The end of the nail embedding part 221 is located outside the fixing tube 21 and used for abutting against the die. The other end of the movable shaft 22 is connected with an air path device 29, and the air path device 29 is used for generating negative pressure or positive pressure in the nail embedding part 221 so as to suck or blow the nut. Compared with the existing mode of manual operation, the nail embedding machine has the advantages of high nail embedding efficiency and high safety.

The elastic element 23 is abutted between the nail embedding part 221 and the fixing tube 21. Specifically, the nail embedding part 221 is convexly arranged on the movable shaft 22, one end of the fixed tube 21 is provided with a limiting part 211, one end of the movable shaft, which is far away from the nail embedding part 221, penetrates through the limiting part 211, and the elastic part 23 abuts between the nail embedding part 221 and the limiting part 211.

Referring to fig. 3, when the end of the nail-embedding portion 221 abuts against the mold, the movable shaft 22 slides relative to the fixed tube 21, and the elastic member 23 contracts to press against the mold, so that the nail-embedding portion 221 is positioned to embed the nut into the reserved position. When the end of the nail embedding part 221 is far away from the mould, the elastic piece 23 enables the movable shaft 22 to reset. In one embodiment, the elastic member 23 is a spring, the spring is sleeved on the movable shaft 22, and the spring is abutted between the nail embedding portion 221 and the limiting portion 211.

Referring to fig. 4, the nail embedding mechanism 20 further includes an insert 24, the insert 24 is embedded in the nail embedding cavity 222, and an air passage is arranged on the periphery of the insert 24, and the air passage corresponds to the circular ring surface at the end of the nut, so as to increase the pressure of the nail embedding cavity 222 acting on the nut and improve the stability of sucking or blowing.

Specifically, two ends of the insert 24 are respectively provided with a mounting portion 241 and a bearing portion 242 in a protruding manner, and the mounting portion 241 and the bearing portion 242 are respectively embedded in the embedded nail cavity 222 in an interference manner. The mounting portion 241 abuts against the movable shaft 22 and is connected with a channel opening of the air path device 29, and the bearing portion 242 abuts against the nut. The installation portion 241 is provided with a groove 243, two ends of the groove 243 are provided with first openings 244, the circumferential side of the bearing portion 242 is provided with second openings 245, and the first openings 244 and the second openings 245 form the air channel with the inner wall of the nail embedding cavity 222.

The first opening 244 and the second opening 245 are uniformly arranged around the mounting portion 241 and the bearing portion 242, so that the nut is uniformly stressed. In one embodiment, the number of the first openings 244 and the number of the second openings 245 are two. The two first openings 244 are respectively oppositely arranged on the peripheral side of the mounting portion 241; the two second openings 245 are respectively disposed opposite to the circumferential side of the bearing portion 242.

It is understood that, in other embodiments, the mounting portion 241 and the bearing portion 242 may be fixed in the nail embedding cavity 222 by welding, bonding, or integral molding.

Referring to fig. 2 and 3, the nailing mechanism 20 further includes a limiting pin 25 and a guiding bushing 26. The limit pin 25 penetrates through the fixing tube 21 and abuts against the periphery of the embedded nail part 221, and the guide bush 26 is clamped between the embedded nail part 221 and the fixing tube 21 through the limit pin 25. The limiting pin 25 is used for guiding the sliding direction of the embedded nail part 221, and the embedded nail part 221 slides along the axial direction of the fixed pipe 21. The guide bush 26 is used to reduce the friction between the nail-embedded portion 221 and the fixed pipe 21 and to make the movable shaft 22 slide smoothly. In one embodiment, the guide bushing 26 is a ball bushing.

Referring to fig. 2 and fig. 3, the sensing mechanism 30 is disposed in the installation channel 11 and abuts against the fixed tube 21, and the sensing mechanism 30 is further fixed to the movable shaft 22. When the nail embedding part 221 abuts against the mold and slides relative to the fixed pipe 21, the sensing mechanism 30 moves along with the movable shaft 22 and generates a gap with the fixed pipe 21, so that a signal is generated, the gas circuit device 29 receives the signal to switch negative pressure in the nail embedding part 221 to positive pressure, so that the nut is blown out to a reserved position in the mold, an automatic nail embedding function is realized, and nail embedding efficiency is improved. In one embodiment, the air path device 29 switches the positive pressure or the negative pressure by a solenoid valve.

Specifically, the sensing mechanism 30 includes a fixed collar 31 and an inductor 32, the fixed collar 31 is disposed in the installation channel and abuts against the fixed tube 21, the fixed collar 31 is further fixed to the movable shaft 22, and the inductor 32 is disposed in the fixed collar 31 to induce a gap between the fixed collar 31 and the fixed tube 21.

In one embodiment, the sensor 32 is a fiber displacement sensor, when the fixing collar 31 abuts against the fixing tube 21, light in a transmitting fiber in the fiber displacement sensor cannot be reflected into a receiving fiber in the fiber displacement sensor, and no light signal exists in the receiving fiber in the fiber displacement sensor; when the fixing collar 31 is far away from the fixing tube 21 and a gap is formed between the fixing collar and the fixing tube, light in the transmitting optical fiber in the optical fiber displacement sensor is reflected to the receiving optical fiber, and the receiving optical fiber in the optical fiber displacement sensor receives the light signal and generates a signal. The optical fiber displacement sensor has the advantages of small size and light weight, cannot obstruct the movable shaft 22 from moving, has the advantages of high sensitivity and electromagnetic interference resistance, and is convenient for automatic nail burying.

It is understood that in other embodiments, the sensor 32 may be a linear displacement sensor, a magnetoelastic displacement sensor, an LVDT displacement sensor, a pull string displacement sensor, or the like.

Referring to fig. 5, the present application further provides a nail embedding robot 200, wherein the nail embedding robot 200 includes the nail embedding device 100, the bracket 50 and the robot arm 60. The bracket 50 is rotatably connected to the mechanical arm 60, and the nail embedding device 100 is connected to the end of the bracket 50 and used for moving the nail embedding device 100 to a reserved position in the mold in the molding machine 70 through the mechanical arm 60 and the bracket 50. The angle range of the rotation of the holder 50 by the end of the robot arm 60 is 90 degrees. In one embodiment, the bracket 50 is clamped to the mounting surface 12 to secure the nailing device 100. Compared with a manual operation mode, the mechanical arm 60 drives the operation, and the nail burying machine has the advantages of high accuracy and high nail burying efficiency.

Referring to fig. 6, the present application further provides a method for embedding a nut into a reserved position in a mold by using the above-mentioned nail embedding robot 200, including the following steps:

s1, clamping the nut in the nail embedding part 221, and generating negative pressure in the nail embedding part 221 to suck the nut;

s2, the mechanical arm 60 drives the nail embedding device 100 to move and press the nail embedding part 221 against the mold, the sensing mechanism 30 moves along with the movable shaft 22 and generates a gap with the fixed pipe 21, and then a signal is generated, the gas circuit device 29 receives the signal to generate positive pressure in the nail embedding part 221, and the nut is blown out to a reserved position in the mold.

Specifically, in one embodiment, the distance that the nail embedding part 221 is pressed against the mold is 2 to 3 mm.

S3, the robot arm 60 drives the nail embedding device 100 to move and make the nail embedding part 221 abut against the nut in the mold, so as to detect whether the nut is in place through the sensing mechanism 30.

Specifically, in one embodiment, the nail embedding portion 221 abuts against the nut in the mold, so that the nail embedding portion 221 slides relative to the fixed tube 21, the sensing mechanism 30 moves along with the movable shaft 22 and forms a gap with the fixed tube 21, and then generates a detection signal to determine whether the nut is taken out by the nail embedding portion 221 during nail embedding, thereby avoiding damage to the mold assembly caused by molding missing of the nut and scattering of the nut by the mold.

In the nailing device 100, the nailing robot 200 and the nailing method, negative pressure or positive pressure is generated in the nailing portion 221 to suck or blow the nut. Compared with the existing mode of manual operation, the nail embedding machine has the advantages of high nail embedding efficiency and high safety. The nut is sucked by negative pressure generated in the nail embedding part 221, when the nail embedding part 221 abuts against the mold and is opposite to the fixed pipe 21 to slide, the sensing mechanism 30 moves along with the movable shaft 22 and generates a gap between the fixed pipe 21 to generate a signal, and the gas circuit equipment 29 receives the signal to enable the negative pressure in the nail embedding part 221 to be switched into positive pressure so as to blow the nut to a reserved position in the mold, so that an automatic nail embedding function is realized, and the nail embedding efficiency is improved.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications of the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims

1. The utility model provides an bury nail device for bury the reservation position in the mould with the nut, its characterized in that includes:

the supporting mechanism is provided with an installation channel;

a nail burying mechanism; and

the nail embedding mechanism comprises:

a fixed tube fixed in the installation channel;

the movable shaft is arranged in the fixed pipe in a sliding mode, one end of the movable shaft is provided with a nail embedding part, the nail embedding part is used for clamping the nut, the other end of the movable shaft is connected with air channel equipment, and the air channel equipment is used for enabling negative pressure or positive pressure to be generated in the nail embedding part so as to suck or blow the nut; and

the elastic piece is abutted between the nail embedding part and the fixing pipe;

the sensing mechanism is arranged in the installation channel and abutted against the fixed pipe, the sensing mechanism is further fixed on the movable shaft, when the nail embedding part abuts against the mold and is opposite to the fixed pipe to slide, the sensing mechanism follows the movable shaft to move and generate a gap between the fixed pipe and the movable shaft, a signal is generated, and the gas circuit equipment is used for receiving the signal to enable negative pressure in the nail embedding part to be switched into positive pressure so as to blow out the nut to a reserved position in the mold.

2. The nailing device of claim 1, wherein: the nail embedding mechanism further comprises an insert, the insert is embedded in the nail embedding part, an air path channel is arranged on the periphery of the insert, and the air path channel corresponds to the annular surface of the end part of the nut.

3. The nailing device of claim 2, wherein: insert the protruding installation department and the bearing part of being equipped with respectively in both ends, the installation department reaches the bearing part is do not the interference inlay to be located bury in the nail portion, the installation department support hold in the loose axle is connected the passway mouth of gas circuit equipment, the bearing part is used for supporting and leans on the nut.

4. The nailing device of claim 3, wherein: the installation department is equipped with the recess, the recess both ends are equipped with first opening, bearing part week side is equipped with the second opening, first opening with the second opening, with bury nail portion inner wall and form the gas circuit passageway.

5. The nailing device of claim 1, wherein: the sensing mechanism comprises a fixed shaft collar and an inductor, the fixed shaft collar is arranged in the mounting channel and abutted against the fixed pipe, the fixed shaft collar is further fixed on the movable shaft, and the inductor is arranged in the fixed shaft collar to induce a gap between the fixed shaft collar and the fixed pipe.

6. The nailing device of claim 1, wherein: one end of the fixed pipe is provided with a limiting part, the nail embedding part is convexly arranged on the movable shaft, and the elastic part is abutted between the nail embedding part and the limiting part.

7. The nailing device of claim 1, wherein: bury nail mechanism still includes spacer pin and guide bush, the spacer pin wear to locate fixed pipe and support hold in bury nail portion week side, the guide bush passes through the spacer pin card is held in bury nail portion with between the fixed pipe.

8. An embedded nail robot, comprising the embedded nail device as claimed in any one of claims 1 to 7, further comprising a bracket and a mechanical arm, wherein the bracket is rotatably connected to the mechanical arm, and the embedded nail device is connected with the end of the bracket and used for moving the embedded nail device to a reserved position in the mold through the mechanical arm and the bracket.

9. A nail embedding method for embedding a nut into a reserved position in a mold by using the nail embedding robot as claimed in claim 8, comprising the steps of:

clamping the nut in the nail embedding part, and generating negative pressure in the nail embedding part to suck the nut;

10. The nailing method of claim 9, wherein: the method also comprises the following steps after the nut is blown out to the reserved position in the die: