CN214502404U

CN214502404U - Hot-embedded nut assembly height detection mechanism

Info

Publication number: CN214502404U
Application number: CN202120906280.8U
Authority: CN
Inventors: 宋永亮; 师五志
Original assignee: Shanghai Shisai Automation Technology Co ltd
Current assignee: Shanghai Shisai Automation Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-26
Anticipated expiration: 2031-04-28

Abstract

The application relates to a hot-embedded nut assembly height detection mechanism, which comprises a hot-plug assembly and a displacement detection assembly; the hot plug assembly comprises a material taking head and a driving piece for driving the material taking head to move; the displacement detection assembly comprises a displacement fork and a displacement sensor for detecting the displacement of the displacement fork, the displacement fork is connected to the material taking head in a sliding manner along the driving direction of the driving piece, the displacement sensor is fixedly connected to the material taking head or a telescopic rod of the driving piece, and the end part of the displacement fork can extend out of the end surface of the material taking head; the end face of the displacement fork comprises a first abutting face used for abutting against the end face of the nut and a first detection face used for abutting against the periphery to be installed of the nut. This application has the effect that improves the embedding product degree of depth size detection efficiency of hot embedded nut.

Description

Hot-embedded nut assembly height detection mechanism

Technical Field

The application relates to the technical field of nut assembly, in particular to a hot-insert nut assembly height detection mechanism.

Background

The nut hot-inserting equipment is a commonly used technology in the processing process of plastic parts such as the conventional automobile intake manifold and the like, and adopts the steps of heating a nut to a set temperature and then driving the hot nut to be inserted into an inner hole of a product by using a driving mechanism.

Because the nut is heated to a certain temperature by the hot-embedding nut, the temperature cannot be too high or too low. If the temperature is too high, the plastic holes are easy to melt too much; if the temperature is too low, the nut cannot be embedded in the nut in a hot way. In the process of hot-inserting the nut, the requirement on the inserting degree of the nut is high, and in the related art, after the hot-inserting nut is finished and cooled, the depth dimension of the nut is manually detected one by one.

In view of the above-mentioned related art, the inventors consider that the manual detection method is inefficient and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the embedding product degree of depth size detection efficiency of heat inlays the nut, this application provides a high detection mechanism of heat inlays nut equipment.

The application provides a high detection mechanism of hot embedded nut equipment adopts following technical scheme:

a hot-embedded nut assembly height detection mechanism comprises a hot-plug assembly and a displacement detection assembly;

the hot plug assembly comprises a material taking head and a driving piece for driving the material taking head to move;

the displacement detection assembly comprises a displacement fork and a displacement sensor for detecting the displacement of the displacement fork, the displacement fork is connected to the material taking head in a sliding manner along the driving direction of the driving piece, the displacement sensor is fixedly connected to the material taking head or a telescopic rod of the driving piece, and the end part of the displacement fork can extend out of the end surface of the material taking head; the end face of the displacement fork comprises a first abutting face used for abutting against the end face of the nut and a first detection face used for abutting against the periphery to be installed of the nut.

By adopting the technical scheme, the driving piece drives the material taking head to take the hot nut and thermally embed the hot nut at the mounting hole of the product, the side wall of the nut and the mounting hole of the product can be bonded because the product is plastic, and after the nut is cooled, the driving piece can drive the material taking head to be far away from the nut, so that the action of thermally embedding the nut can be realized; simultaneously, get the in-process of material at the material head, first butt face butt nut to setting for the position on the displacement fork, the displacement fork produces displacement for the first time this moment, displacement sensor detects the first position, at the in-process of nut hot embedding, first detection face on the displacement fork is at the butt product on-line nut in-process of waiting to install the peripheral surface, the displacement fork produces the displacement for the second time, at this moment, according to the difference of twice displacement fork, calculate the terminal surface that obtains the nut and be close to material head one side and the product on-line nut wait to install the difference in height between the peripheral surface, consequently, can detect the height of nut embedding, thereby whether the detection nut installation meets the requirements.

Optionally, a second abutting surface for abutting against the nut mounting surface is formed at the end of the material taking head, an elastic insertion part protruding out of the second abutting surface and used for inserting the nut is arranged on the material taking head, and a second detection surface for abutting against the to-be-mounted periphery of the nut is formed at the end of the material taking head.

Through adopting above-mentioned technical scheme, receive the in-process of the terminal surface butt of nut at the displacement fork, the second butt face that the tip of getting the stub bar was equipped with is favorable to making first butt face and second butt face parallel and level to be favorable to making first butt face to settlement position.

Optionally, an elastic resetting piece is arranged between the displacement fork and the material taking head, and when the displacement fork is not abutted by the outside, the elastic resetting piece enables the first abutting surface and the first detection surface to protrude from the second abutting surface.

Through adopting above-mentioned technical scheme, elasticity piece that resets is favorable to resetting of displacement fork, convenient to use.

Optionally, the free end of the elastic insertion part is provided with an elastic opening along the length direction thereof.

Through adopting above-mentioned technical scheme, the elasticity opening is favorable to increasing the elastic deformation ability of elasticity grafting portion to the grafting stability of the nut of being convenient for.

Optionally, the free end of the elastic insertion part is in a closed shape.

By adopting the technical scheme, the elastic insertion part in the closing-up shape is convenient for the elastic insertion part to be inserted into the nut.

Optionally, the heat dissipation device further comprises a heat dissipation channel, wherein the heat dissipation channel comprises an air inlet arranged at one end of the driving piece telescopic rod, a first air duct inside the driving piece telescopic rod, a second air duct inside the material taking head and an air outlet arranged at the end part of the material taking head, the air inlet, the first air duct, the second air duct and the air outlet are communicated with each other, the air inlet is used for being communicated with an external air blowing device, and an opening of the air outlet is located at the adjacent surface of the second abutting surface and the second detection surface.

Through adopting above-mentioned technical scheme, in order to accelerate the cooling rate of nut, be convenient for take out elasticity grafting portion, outside gas blowing device passes through heat dissipation channel with gas, finally exhausts from the gas outlet of getting stub bar department to dispel the heat to the hot nut that is located the stub bar tip.

Optionally, the displacement fork passes through the connecting rod with displacement sensor's displacement pole fixed connection, just the connecting rod slides and connects the driving piece telescopic link with in getting the stub bar.

By adopting the technical scheme, the displacement fork realizes the transmission of displacement through the connecting rod, so that the displacement sensor can detect the displacement of the displacement fork; the connecting rod is hidden in the telescopic rod of the driving piece, is positioned in the heat dissipation channel and can be dissipated.

Optionally, the displacement fork includes horizontal pole and montant, the horizontal pole slides and connects in getting the heat dissipation passageway of stub bar, it is provided with spacing platform in the stub bar to get, so that the horizontal pole with get and form the air gap between the stub bar inside, with the UNICOM the gas outlet with second vent pipe.

Through adopting above-mentioned technical scheme, in order to reduce the influence of displacement fork to heat dissipation channel, be provided with spacing platform to make each passageway of heat dissipation channel keep the state of UNICOM.

In summary, the present application includes at least one of the following beneficial technical effects:

the hot insert assembly is used for realizing the embedding of the hot nut, and meanwhile, the displacement detection assembly is used for realizing the detection of the embedding depth of the nut, so that the detection efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic overall structure diagram of a material taking head in the embodiment of the present application;

FIG. 3 is a sectional view of a material taking head in the embodiment of the present application;

fig. 4 is a partial structural schematic view of the material taking head in the embodiment of the present application, which is mainly used for showing the abutting part and the end part of the displacement fork;

FIG. 5 is a cross-sectional view of an embodiment of the present application, primarily illustrating heat dissipation channels;

fig. 6 is an enlarged schematic view of a portion a of fig. 5.

Reference numerals: 1. taking a stub bar; 101. a first pipe body; 2. a drive member; 3. a displacement fork; 301. a first abutting surface; 302. a first detection surface; 303. a cross bar; 304. a vertical rod; 4. a displacement sensor; 5. an abutting portion; 501. a second abutting surface; 502. a second detection surface; 6. an elastic insertion part; 601. an elastic opening; 7. an elastic reset member; 8. an air inlet; 9. a first vent conduit; 10. a second vent conduit; 11. an air outlet; 12. a connecting rod; 13. and a limiting table.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses high detection mechanism of hot embedded nut equipment. Referring to fig. 1, the assembly height detecting mechanism of the shrink-fit nut includes a shrink-fit component for shrink-fit nut and a displacement detecting component for detecting the depth of the nut. The hot plug assembly comprises a taking head 1 for taking a nut and a driving piece 2 for driving the taking head 1 to move, and the displacement detection assembly comprises a displacement fork 3 for detecting the insertion position of the nut and a displacement sensor 4 for detecting the displacement of the displacement fork 3.

Referring to fig. 1 and 2, the material taking head 1 is cylindrical as a whole and comprises a hollow first pipe body 101, one end of the first pipe body 101 is fixedly connected to the end of an expansion rod of the driving part 2, and the driving part 2 is a cylinder. One end fixed mounting that the cylinder was kept away from to first body 101 has elasticity grafting portion 6, and elasticity grafting portion 6 includes fixing base and grafting portion, and grafting portion sets up to cylindrical cavity form, and just free port is binding off form, and elasticity opening 601 has still been seted up along length direction in grafting portion simultaneously. The cylinder drives the elastic insertion part 6 to be inserted in the through hole at the center of the nut, the insertion part is in interference fit with the nut, and the cylinder drives the nut to be inserted in the to-be-installed position of a product.

Referring to fig. 2 and 3, the displacement fork 3 is connected in the one end of getting stub bar 1 and keeping away from the cylinder along the drive direction of cylinder slides, and displacement sensor 4 fixed mounting is on the telescopic link of getting stub bar 1 one side is kept away from to the cylinder. The telescopic link of cylinder is the cavity form, and the internal slip of telescopic link is connected with connecting rod 12, and the both ends of connecting rod 12 are connected with the displacement pole of displacement fork 3 and displacement sensor 4 respectively. The displacement fork 3 includes horizontal pole 303 and the montant 304 that is parallel to each other of two that are located horizontal pole 303 both ends homonymy perpendicularly, horizontal pole 303 slides and connects the inslot that slides in first body 101, montant 304 slides and connects in the fixing base of elasticity grafting portion 6, and in order to can adapt to the nut of different specifications, the grafting portion overcoat of elasticity grafting portion 6 is equipped with interchangeable butt portion 5, butt portion 5 fixed mounting is in one side that the cylinder was kept away from to the fixing base, and montant 304 slides and connects in butt portion 5.

In order to make elasticity grafting portion 6 can reset, be provided with elasticity in first body 101 and reset piece 7, elasticity resets piece 7 and sets up to the spring, and the spring housing is established on connecting rod 12, and keeps away from the one end of displacement fork 3 in the first body 101 of one end butt of spring, and the horizontal pole 303 of the other end butt displacement fork 3, and the spring is in compression state.

Referring to fig. 4, the end of the displacement fork 3 may be extended or contracted into the end surface of the abutting portion 5; the end surface of the stem 304 comprises a first abutment surface 301 for abutment against the end surface of the nut and a first detection surface 302 for abutment against the periphery of the nut to be mounted. A set height difference exists between the first contact surface 301 and the first detection surface 302. In this embodiment, the first abutting surface 301 is close to one side of the inserting portion, and the position of the first detecting surface 302 protrudes from the first abutting surface 301. Meanwhile, one side of the abutting part 5, which is far away from the air cylinder, is also provided with a second abutting surface 501 for abutting against the end surface of the nut and a second detection surface 502 for abutting against the periphery of the product to be mounted, and the second abutting surface 501 is recessed in the second detection surface 502. When the nut is inserted into the insertion part, the end surface of the nut abuts against the first abutting surface 301 of the displacement fork 3, and the first abutting surface 301 reaches a position flush with the second abutting surface 501. When the cylinder drives the extracting head 1 with the nut placed thereon to be hot-inserted to the product to be installed at the periphery, at the moment, when the nut is gradually close to and abutted to the periphery of the to-be-installed part, the first detection surface 302 is abutted and retracted. From the amount of retraction, the distance of the second detection surface 502 with respect to the second abutment surface 501 can be known, thereby detecting the depth of nut insertion.

Referring to fig. 5 and 6, in order to accelerate the cooling rate of the nut, the elastic insertion part 6 is convenient to take out, the elastic insertion part further comprises a heat dissipation channel, the heat dissipation channel comprises an air inlet 8 arranged at one end of an air cylinder telescopic rod, a first air duct 9 arranged inside the air cylinder telescopic rod, a second air duct 10 arranged inside the first pipe body 101 and an air outlet 11 arranged at the end part of the material taking head 1. The air inlet 8, the first air duct 9, the second air duct 10 and the air outlet 11 are communicated with each other, and the air inlet 8 is used for being communicated with an external blowing device. The external blowing device exhausts the gas from the gas outlet 11 of the material taking head 1 through the heat dissipation channel, so that the heat of the hot nut at the end of the material taking head 1 is dissipated.

Because the displacement fork 3 slides on getting material head 1, in order not to shelter from the gas outlet of gas outlet 11 for be equipped with protruding spacing platform 13 on the terminal surface that the elasticity plug connector is close to in the first body 101, so that horizontal pole 303 and get and form the clearance of ventilating between the material head 1 inside, with UNICOM gas outlet 11 and second air channel 10. And the air outlet 11 is located at the adjacent surface of the second abutting surface 501 and the second detection surface 502, so that the air outlet 11 is not easily and completely blocked by the nut, thereby facilitating the heat dissipation of the nut.

The implementation principle of the hot-embedded nut assembly height detection mechanism in the embodiment of the application is as follows: the air cylinder drives the plug connector at the material taking head 1 to insert and take the hot nut, and the end surface of the nut is abutted against the first abutting surface 301 to be flush with the second abutting surface 501; at this time, the displacement fork 3 generates a first displacement, and then the hot nut is embedded at the mounting hole of the plastic product, and in the hot embedding process, the first detection surface 302 on the displacement fork 3 abuts against the periphery of the to-be-mounted position of the product and generates retraction, namely a second displacement. And judging the depth of the nut inserted into the product according to the two displacement amounts. After the heat dissipation channel enables the nut to be cooled, the air cylinder drives the plug connector to be far away from the nut.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high detection mechanism of hot embedded nut equipment which characterized in that: the device comprises a hot plug assembly and a displacement detection assembly;

the hot plug assembly comprises a material taking head (1) and a driving piece (2) for driving the material taking head (1) to move;

the displacement detection assembly comprises a displacement fork (3) and a displacement sensor (4) for detecting the displacement of the displacement fork (3), the displacement fork (3) is connected to the material taking head (1) in a sliding mode along the driving direction of the driving piece (2), the displacement sensor (4) is fixedly connected to the material taking head (1) or a telescopic rod of the driving piece (2), and the end portion of the displacement fork (3) can extend out of the end face of the material taking head (1); the end face of the displacement fork (3) comprises a first abutting surface (301) for abutting with the end face of the nut and a first detection surface (302) for abutting with the periphery of the nut to be installed.

2. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 1, wherein: the end part of the material taking head (1) is provided with a second abutting surface (501) for abutting against a nut mounting surface, the material taking head (1) is provided with an elastic inserting part (6) which protrudes out of the second abutting surface (501) and is used for inserting a nut, and the end part of the material taking head (1) is provided with a second detection surface (502) for abutting against the periphery to be mounted of the nut.

3. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 2, wherein: the displacement fork (3) with get and be provided with elasticity between stub bar (1) and reset piece (7), when displacement fork (3) did not receive external butt, elasticity resets piece (7) and makes first butt face (301) and first detection face (302) all bulge in second butt face (501).

4. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 2, wherein: the free end of the elastic insertion part (6) is provided with an elastic opening (601) along the length direction of the free end.

5. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 2 or 3, wherein: the free end of the elastic insertion part (6) is in a closed shape.

6. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 2, wherein: the heat dissipation device is characterized by further comprising a heat dissipation channel, wherein the heat dissipation channel comprises an air inlet (8) formed in one end of a telescopic rod of the driving piece (2), a first air duct (9) formed in the telescopic rod of the driving piece (2), a second air duct (10) formed in the material taking head (1) and an air outlet (11) formed in the end portion of the material taking head (1), the air inlet (8), the first air duct (9), the second air duct (10) and the air outlet (11) are communicated with each other, the air inlet (8) is communicated with an external air blowing device, and an opening of the air outlet (11) is located at the abutting surface of the second abutting surface (501) and the second detection surface (502).

7. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 6, wherein: the displacement fork (3) is fixedly connected with a displacement rod of the displacement sensor (4) through a connecting rod (12), and the connecting rod (12) is connected with the telescopic rod of the driving piece (2) and the material taking head (1) in a sliding mode.

8. The assembly height detection mechanism of a heat-embedded nut as claimed in claim 7, wherein: the displacement fork (3) comprises a cross rod (303) and a vertical rod (304), the cross rod (303) is connected in a heat dissipation channel of the material taking head (1) in a sliding mode, a limiting table (13) is arranged in the material taking head (1), and therefore a ventilation gap is formed between the cross rod (303) and the interior of the material taking head (1) and is communicated with the gas outlet (11) and the second ventilation pipeline (10).