KR102094523B1 - Coupling module for o-ring assembly device - Google Patents

Abstract

The present invention relates to a coupling module for an O-ring assembly device and, more specifically, to a coupling module aligning and connecting an O-ring and an object to be coupled in an O-ring assembly device individually and automatically supplying the O-ring and the object to be coupled and discharging the O-ring and the object to be coupled, which are coupled. According to the present invention, to achieve the purpose of the present invention, the coupling module for an O-ring assembly device includes: an alignment jig in which the O-ring and the object to be coupled, which are individually transferred by an automatic transfer process, are mounted in order; an aligning unit including a driving unit to rotate the alignment jig; a pair of shielding units arranged to be symmetric to each other to open and close the upper part of the alignment jig and including a cover moving to approach to and be separated from each other; a press unit including a press roller guiding the O-ring to move to an O-ring mounting groove of the object to be coupled while the alignment jig rotates by coming into contact with the outer circumference of the O-ring when rotating by the driving unit; and a discharge unit separating the object coupled to the O-ring from the alignment jig and discharging the object.

Description

Coupling module for o-ring assembly device

The present invention relates to a coupling module for an O-ring assembly device, and more specifically, the coupling object and the O-ring are automatically supplied, respectively, and the coupling object and the O-ring assembly device are discharged in a combined state. It relates to a coupling module for aligning and coupling the ring.

Generally, an O-ring (hereinafter abbreviated as 'O-ring') is mounted on a portion requiring a gas tightness such as a cylinder or a gas valve, and is a means to improve the sealing force. It is formed of synthetic rubber, natural rubber, or synthetic resin. It is a ring made of circular or square cross section.

Currently, the combination of the O-ring and the object to be joined depends on the manual work of the operator using a metal tool. After the worker has the object attached to the seating jig, the O-ring is inserted into the seating jig one by one and then the button is pressed to connect the O-ring and the target to be joined. It was a way of combining.

The conventional method of assembling by manual worker has a problem in that work efficiency and productivity are reduced due to severe changes in work time and quality depending on the skill level of the worker.

In addition, there was a high risk of accidents that could occur during manual labor and problems such as an increase in labor costs due to operator input, quality problems such as o-ring missing due to visual inspection, and poor production compared to time.

As a proposed technique to solve this problem, Korean Patent Registration No. 10-1335593 proposed an “O-ring insertion device” that can automatically and automatically insert an O-ring into an object to be inserted, such as a coupler.

However, in the prior art, only a part of product assembly was automated, and a problem such as o-ring omission inspection was not solved.

On the other hand, Korean Patent Registration No. 10-1537526 proposed an 'O-ring automatic assembly device' that automates pre-piston and O-ring input and combination and discharge, and o-ring omission inspection.

In the prior art, an O-ring assembly tool including an O-ring expansion chuck for chucking an O-ring and an O-ring clamp cylinder for operating the O-ring expansion chuck to combine the pre-piston and an O-ring, and an O-ring assembly cylinder for vertically elevating the O-ring assembly tool and The front and rear transfer brackets supporting the O-ring assembly upper and lower brackets supporting the O-ring assembly cylinder and lifting up and down on the upper and lower rails of the O-ring assembly and the front and rear transfer brackets and the front and rear transfer brackets ride It comprises a transfer rail bracket including a transfer rail to be transferred, and a seating portion support frame for supporting the front and rear transfer cylinders on a base substrate.

The prior art made as described above extends the O-ring after chucking, and moves the O-ring to the pre-piston side in accordance with the elevating operation to join the O-ring, and frees the O-ring by lowering the O-ring assembly tool in a state where the O-ring is expanded larger than the outer diameter of the pre-piston. It is fitted in the O-ring assembly groove of the piston, and the O-ring expansion chuck releases the chucking so that the O-ring is in close contact with the O-ring assembly groove of the prepiston by the elastic force of the O-ring.

The prior art made as described above may damage the O-ring in the process of expanding and moving the O-ring after chucking it, and the O-ring and the chucking and the expansion are repeatedly performed because the O-ring is repeatedly chucked and expanded in the process of transporting and combining the O-ring. There was a problem that the durability of the configuration for the lower.

In addition, the O-ring is bonded to the object to be bonded in a state in which the oil component required for manufacturing remains after production, and the oil component is adsorbed to the above components, and thus the contact portion and the adsorbed portion are corroded. There was a problem in that the incidence of defects increases during production due to tolerances.

(0001) Korean Registered Patent No. 10-1335593 (0002) Korean Registered Patent No. 10-1537526

The present invention has been proposed to solve the above problems, and by providing a coupling module that automatically couples the O-ring to the object to be assembled in the O-ring assembly device, the work force can be reduced, thereby reducing labor costs and reducing the defect rate. The aim is to provide a coupling module for an O-ring assembly device that can improve productivity by lowering and providing a product of constant quality.

In order to achieve the above object, the present invention, to achieve the above object, the present invention is to align the alignment jig and the O-ring are sequentially placed, each of the objects to be transferred through an automatic transfer process, and for rotating the alignment jig An alignment unit provided with a driving means, a shielding unit including a pair of symmetrically arranged pairs that move to open and close the upper side of the alignment jig and move to be spaced apart from each other, and the alignment jig is rotated by the driving means. It is characterized in that it comprises a discharge unit for discharging by separating and discharging the object to be coupled to the O-ring combined object and the O-ring coupling object to guide the O-ring to move to the O-ring seating groove of the object to be rotated while coming into contact with the outer circumferential surface. .

In addition, the shielding unit, a pair of shielding cylinders moving in a direction adjacent to or spaced apart from each other while operating by an applied power and signal, and a moving block coupled to the rod of the shielding cylinder, It characterized in that the guide plate for connecting the moving block and the cover and the sensor for detecting the position is further provided to detect the state in which the O-ring is coupled to the O-ring seating groove of the object to be coupled.

At this time, the sensor for detecting the fixed position is disposed on one side of the alignment jig, and is arranged to sense the position of the O-ring seating groove formed on the coupling object placed in the alignment jig, and after the rotation of the alignment jig, the O-ring seating groove It is characterized in that it is a laser detection sensor that checks the presence or absence of the O-ring through the gap with.

In addition, the pressure unit, the pressure cylinder for displacing the position of the pressure roller in the horizontal direction with respect to the outer circumferential surface of the alignment jig, a displacement block coupled to the rod of the pressure cylinder, the displacement block is coupled to the tip It characterized in that it comprises a plate to which the pressure roller is rotatably coupled.

In addition, the discharge unit, the discharge motor operating by the applied power and the signal, the discharge arm coupled to the motor shaft of the discharge motor and rotates in the left and right directions above the alignment jig, and at the end of the discharge arm It is characterized in that it comprises a discharge nozzle that is coupled, the suction nozzle receiving the suction force controlled supply and blocking, and the discharge target is disposed at a position facing the alignment jig and spaced apart from the suction nozzle.

Further, the alignment jig is formed by contacting the bottom surface of the placed coupling object to form a friction force with the coupling object, thereby preventing the coupling object from idling when the alignment jig rotates, and further comprising a friction ring.

In addition, the cover is made of an arc shape curved to one side, and a curved portion to one side is formed toward the opposite direction to form a circular space in the center when a pair of covers are close to each other. It is characterized in that it is possible to remove the O-ring deviated from the object to be bonded through the circular space.

The present invention made as described above combines the O-ring to the coupling object by rotating an alignment jig in which the coupling object and the O-ring are not placed, but induces defects by inducing the coupling of the O-ring through a pressure roller arranged to rotate against the outer circumferential surface of the O-ring. Minimize,

When the alignment jig is rotated, a shielding unit is provided to prevent the coupling object or the O-ring from separating from the alignment jig to prevent the coupling object or the O-ring from separating from the alignment jig.

Furthermore, it is possible to obtain an effect of improving productivity by improving the method that was produced by an existing worker's manual or partially automated process.

1 is an exemplary view showing a coupling module for an O-ring assembly device according to the present invention.
Figure 2 is an exemplary view showing the standby state of the coupling module for the O-ring assembly apparatus according to the present invention.
3 is an exemplary view showing a state in which the object to be coupled and the O-ring are placed in the alignment unit in the coupling module for the O-ring assembly apparatus according to the present invention.
Figure 4 is an exemplary view showing a state in which the shield unit is moved in the coupling module for an O-ring assembly device according to the present invention.
Figure 5 is an exemplary view showing a state in which the pressing unit is moved in the coupling module for the O-ring assembly apparatus according to the present invention.
Figure 6 is an exemplary view showing a state in which the discharge unit is operating in the coupling module for the O-ring assembly apparatus according to the present invention.
7 is an exemplary view showing a state in which the coupling object is separated from the alignment jig by the discharge unit in the coupling module for the O-ring assembly device according to the present invention.
Figure 8 is an exemplary view showing the state of Figures 6 and 7 from different angles in the coupling module for the O-ring assembly device according to the present invention.

Hereinafter, other objects and features of the present invention in addition to the above object will be apparent through the description of the embodiment with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

Hereinafter, a preferred embodiment of the coupling module for an O-ring assembly device according to the present invention will be described with reference to the accompanying drawings.

In the following description, the coupling module 1 for the O-ring assembling apparatus according to the present invention, the illustration and description of the control unit for controlling the supply unit and each unit for automatically supplying the object and the O-ring are omitted.

In addition, although the coupling object shown in the present invention is illustrated as a dust cover that is one of automotive parts, it is not limited thereto.

The coupling module 1 for an O-ring assembly device according to the present invention includes an alignment unit 10, a shielding unit 20, a pressing unit 30, and a discharge unit 40.

First, the alignment unit 10, for the rotation of the alignment jig 11 and the alignment jig 11, and the alignment object 100 and the O-ring 200 are sequentially supplied, respectively, through the automatic transfer process for rotating the alignment jig 11 It includes a driving means (12).

The alignment jig 11 is to be changeable according to the shape and size of the object to be bonded 100, is detachably coupled to the driving means 12, the mounting portion 13 to which the object to be bonded 100 is placed above ) Is formed.

Here, the mounting portion 13 may be variously changed according to the shape and size of the object to be bonded 100, and is not limited to the shape shown in the drawing.

In addition, by forming a friction force with the coupling object 100 placed on the mounting portion 13, the alignment object 11 is rotated through the driving means 12 to prevent the coupling object 100 from being idle. For the friction ring 14 is further provided.

The friction ring 14 has its own elasticity, such as rubber, urethane, etc., and is made of a material having a high coefficient of friction, while supporting the load of the object to be bonded without damaging the bottom surface of the object 100 to be secured, and at the same time, the friction with the object to be bonded. Causes

Here, the friction ring 14 is not limited to the circular ring shape shown in the figure, and may be formed in a flat plate shape or a plurality of protrusions raised upward from the bottom surface of the recess 13.

The driving means 12 is operated by the applied power and signal, and may be composed of a motor to which a power cable or the like is connected.

The shielding unit 20 is to prevent the coupling object and the O-ring, which rotates by closing the upper side of the alignment jig 11, from deviating upward from the alignment jig 11, for this purpose, the cover 21 and the cover (21) a shielding cylinder 22 for moving, a moving block 23 coupled to the rod of the shielding cylinder 22, and a guide plate connecting the moving block 23 and the cover 21 ( 24).

The cover 21 is made of a flat plate shape to open and close the upper side of the alignment jig 11, and a pair is disposed symmetrically to each other.

Here, the cover 21 is formed in an arc shape curved to one side, and the curved portions on one side are formed in opposite directions to each other, so that when both ends of the pair of covers 21 come into contact with each other, the cover 21 moves up and down in the center. The pierced space 211 is formed.

The space 211 widens the area of the open space formed on the upper side of the alignment jig 11 while the cover 21 is spaced apart from each other, so that the object or the O-ring that deviates from the alignment jig during the bonding process can be removed. It is a space to do. That is, when the cover 21 is made of a half-moon type, even if spaced apart from each other, since the space formed therebetween is narrow, a problem that it is difficult to remove an object or an O-ring deviating from the alignment jig may occur, and thus the cover 21 is moved to one side. The problem described above is solved by forming a curved arc.

The shielding cylinder 22 moves the cover 21 in a horizontal direction so that a pair of covers are brought into close proximity to or away from each other, and operated by an applied power and signal. Since the shielding cylinder 22 is known, a detailed description is omitted.

The moving block 23 is disposed at the distal end of the rod that enters and exits the shielding cylinder 22, preventing vibrations that may occur when the rod moves, to be transmitted directly to the cover 21, and the straightness in the horizontal direction according to the movement of the rod. Is to maintain.

To this end, the moving block 23 is made in the form of a rectangular pillar extending up and down as a whole, wherein the vertical height of the rectangular pillar is such that the cover 21 has a height that can be disposed above the alignment jig 11. Is formed.

On the other hand, the guide plate 24 is to connect the moving block 23 and the cover 21, and the cover 21 is formed of a transparent material so that the operating state of the alignment jig 11 can be checked from the outside. When the cover 21 is made of a transparent synthetic resin material, durability may be weak, and the cover 21 in the process of directly connecting the cover 21 and the moving block 23 made of different heterogeneous materials (21) to prevent damage.

Therefore, the guide plate 24 is disposed between the cover 21 and the moving block 23 and is coupled to them through a coupling screw.

Here, any one of the guide plate 24 or the cover 21 may have a long hole for movement of position (not shown), which is changed when the alignment jig 11 is changed according to the size or shape of the object to be joined. The cover 21 must also be changed to close the upper side of the alignment jig 11.

However, by changing the position of the cover 21 through the long hole for moving the position, the position can be adjusted without changing the cover 21, thereby reducing the production cost by omitting the production of the cover according to each alignment jig, Furthermore, it is possible to shorten the time required to change the configuration according to the change of the binding object.

On the other hand, the shielding unit 20 is further provided with a sensor 25 for detecting an exact position for detecting a state in which an O-ring is inserted into a coupling object.

The position detecting sensor 25 is disposed on one side of the alignment jig 11, a laser for confirming whether the O-ring 200 is coupled to the O-ring seating groove 110 formed in the coupling object 100 It consists of a sensor.

That is, the sensor 25 for detecting the fixed position is arranged at a certain distance in the horizontal direction of the O-ring seating groove 110 to check the mutual distance. After the alignment jig 11 rotates, the O-ring seating groove ( The state of the O-ring 200 coupled to 110 is checked through mutual spacing.

When the driving means 12 for rotating the alignment jig 11 in the state where the sensor 25 for detecting the exact position is not coupled to the O-ring seating groove 110 is stopped, the detected value is controlled (not shown). It is transmitted to the alarm means such as light or sound to operate and at the same time stop the corresponding O-ring assembly device.

On the other hand, the sensor 25 for detecting the position can be simultaneously used as a means of counting the number of objects to be combined through the corresponding alignment jig by transmitting the detected signal to the control unit (not shown).

The pressing unit 30 is in contact with the outer circumferential surface of the O-ring 200 rotated by the driving means 12 to press it to the outer circumferential side of the object to be coupled 100, for this purpose, the pressing roller 31 and the pressing The pressure cylinder 32 for displacing the position of the roller 31, the displacement block 33 coupled to the rod of the pressure cylinder 32, and the displacement block 33 are coupled to the pressure roller 31 at an end. ) Includes a plate 34 on which it is placed.

The pressure roller 31 is composed of a driven roller that is rotatably coupled to the plate 34 and rotates by the rotational force of the abutting O-ring 200. Here, the pressing roller 31 is preferably provided with a rotating shaft made of a soft material to prevent damage to the O-ring 200 in contact with the outside and the center of the rotating shaft.

On the other hand, a rotating shaft is provided at the center to constitute the pressure roller 31 and may be configured as a bearing coupled to rotate by the rotating shaft.

The pressure cylinder 32 is to change the position of the pressure roller 31 while operating with the applied power and signal.

The displacement block 33 is coupled to the distal end of the rod that enters and exits the pressure cylinder 32 and moves in connection with the movement of the rod. Vibration generated during movement of the rod and vibration transmitted from the pressure roller 31 Each of these minimizes movement to the opposite side.

That is, the vibration generated at the start and stop of the rod is transmitted to the pressure roller 31 to solve the problem that the pressure roller 31 in contact with the O-ring could change the position of the O-ring, and, conversely, the pressure transmitted from the pressure roller 31 By absorbing vibration, the internal components of the pressurized cylinder 32 prevent wear and position fluctuations to maintain durability.

The plate 34 is made of a flat plate shape that is coupled to the displacement block 33, and as shown, a pressing roller 31 is disposed at its front end.

Here, it is preferable that the front end portion where the pressure roller is disposed has a relatively narrow width compared to the other side (end portion) coupled with the displacement block, so that the area occupied by the pressure roller 31 can be reduced.

This is to prevent the other components, that is, the alignment jig, the driving means, and the like by the pressure roller 31 is not limited in size and size.

On the other hand, the plate 34 is made of a flat plate as shown, and one side protrudes outward so that the pressure roller 31 is disposed at its end, through which the load of the rod entering and exiting the pressure cylinder 32 is accessed. In the process of minimizing the distance and placing the object and the O-ring on the alignment jig 11, it waits in the retracted position and then malfunctions by quickly contacting the outer circumferential surface of the O-ring through a short moving distance when the alignment jig is rotated. It has the effect of reducing occurrence.

When the O-ring is coupled to the object to be coupled, the discharge unit 40 is separated from the alignment jig and moved for the next process. To this end, the discharge unit 41 is rotated by being coupled to the discharge motor 41 and the motor shaft of the discharge motor 41 The discharge arm 42 to be coupled to the end of the discharge arm 42, the suction nozzle 43 receiving the suction force to control supply and shutoff, and the alignment jig 11 are disposed at a position facing each other and transferred And a discharge slope 44 through which the combined objects are discharged.

The discharge motor 41 is operated through an applied power and signal, and is composed of a bidirectional motor capable of forward and reverse rotation. Here, the forward and reverse directions mean that it is possible to rotate from left to right based on FIG. 8 and also from right to left.

The discharge arm 42 is coupled to the motor shaft of the discharge motor 41 and rotates according to the rotation direction of the discharge motor, and is formed in a rod shape extending in the longitudinal direction.

And the adsorption nozzle 43 is coupled to the end of the discharge arm 42 to receive the suction force is controlled by the supply and shut-off through the control unit, illustrated for the configuration of the transport pipe and pressure tank, etc. for transmitting the suction force Was omitted.

The discharge slope 44 is formed to be inclined to one side, and after being transferred in an adsorbed state by the adsorption nozzle 43, the object to be separated from the adsorption nozzle 43 is discharged along the inclined surface by blocking the suction force. .

Here, the discharge arm 42 and the discharge slope 44 may be changed in the direction of rotation and discharge in the design stage of the O-ring assembly device according to the present invention, and are not limited to the direction shown in the drawing.

As described above, the present invention has been described by specific matters such as specific components, etc. and limited embodiments and drawings, but is provided to help the overall understanding of the present invention, and the present invention is not limited to the above embodiments , Those skilled in the art to which the present invention pertains can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims as well as the claims described below belong to the scope of the spirit of the present invention. .

1: O-ring assembly module according to the present invention
10: alignment unit
11: Alignment jig 12: Driving means
13: rest portion 14: friction ring
20: shielding unit
21: cover 22: shielding cylinder
23: moving block 24: guide plate
25: sensor for detecting the exact position
30: pressurization unit
31: pressure roller 32: pressure cylinder
33: displacement block 34: plate
40: discharge unit
41: discharge motor 42: discharge arm
43: adsorption nozzle 44: discharge slope

Claims (7)

Alignment jig (11) in which the binding object (100) and the O-ring (200) respectively transferred through the automatic transfer process are sequentially placed,
Alignment unit 10 is provided with a driving means 12 for rotating the alignment jig 11; And,
A shielding unit 20 including a cover 21 in which a pair is arranged symmetrically to each other to open and close the upper side of the alignment jig 11 and moves to be close and spaced from each other; and
When the alignment jig 11 is rotated by the driving means 12 to rotate against the outer circumferential surface of the O-ring, the O-ring 200 guides the O-ring 200 to move to the O-ring seating groove 110 of the coupling object 100. Pressing unit 30 comprising a; And
O-ring 200, the combined object 100 is coupled to the assembly module for an O-ring assembly characterized in that it comprises a; discharge unit 40 to separate and discharge from the alignment jig (11).
According to claim 1, The shielding unit 20,
A pair of shielding cylinders 22 operating by the applied power and signals and moving the pair of covers 21 in directions close to each other or spaced apart;
A moving block 23 coupled to the rod of the shielding cylinder 22,
Guide plate 24 for connecting the moving block 23 and the cover 21 and
A coupling module for an O-ring assembling apparatus, further comprising an in-situ sensor 25 for detecting a state in which the O-ring is coupled to the O-ring seating groove 110 of the object to be coupled.
The method of claim 2, wherein the sensor for detecting the exact position 25,
Arranged on one side of the alignment jig 11, it is arranged to detect the position of the O-ring seating groove 110 formed on the coupling object 100 placed on the alignment jig,
After the rotation of the alignment jig 11, a coupling module for an O-ring assembly device, characterized in that it is a laser detection sensor to check the presence or absence of the O-ring 200 through the gap with the O-ring seating groove 110.
According to claim 1, The pressing unit 30,
A pressure cylinder 32 for displacing the position of the pressure roller 31 in the horizontal direction with respect to the outer circumferential surface of the alignment jig 11;
Displacement block 33 coupled to the rod of the pressure cylinder 32,
Combination module for an O-ring assembly device, characterized in that it comprises a plate (34) coupled to the displacement block (33) and the pressure roller (31) rotatably coupled to the distal end.
According to claim 1, The discharge unit 40,
And the discharge motor 41 that is operated by the applied power and signal,
And the discharge arm 42 is coupled to the motor shaft of the discharge motor 41 and rotates in the left and right direction from the upper side of the alignment jig (11),
Adsorption nozzle (43) coupled to the end of the discharge arm (42) and receiving the suction force controlled supply and blocking,
A coupling module for an O-ring assembly device, characterized in that it comprises a discharge slope (44) disposed at a position facing the alignment jig (11) and spaced apart from the adsorption nozzle (43).
According to any one of claims 1 to 5, The alignment jig (11),
The friction ring 14 further prevents the coupling object 100 from idling when the alignment jig 11 rotates by forming a friction force with the coupling object 100 by making contact with the bottom surface of the placed coupling object 100 O-ring assembly module for the assembly device characterized in that the.
According to any one of claims 1 to 5, The cover (21),
It is formed in a curved arc shape on one side,
The curved portion on one side is formed in opposite directions so that when the pair of covers 21 are close to each other, a circular space is formed at the center, thereby removing the O-ring deviating from the object to be joined through the circular space. O-ring assembly module for assembling device, characterized in that to allow.

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