KR101248428B1 - the deforming apparatus for sealing, the installing apparatus for sealing, the installing apparatus for sealing into cylinder - Google Patents

Abstract

The present invention relates to devices for mounting a seal in a ring groove formed in a cylinder and an insertion method using the same. According to an embodiment of the present invention, after elastically deforming the outer diameter of the seal inserted into the ring groove formed on the inner circumferential surface of the cylinder at least equal to or smaller than the inner diameter of the inner circumferential surface, the elastically deformed seal is inserted into the inner circumferential surface of the cylinder. The present invention provides a method of inserting a seal mounted on the ring groove by releasing the gripping of the seal from the ring groove, and suggesting an elastic deformation device of the seal and an insertion device of the seal for use therein.

Description

The deforming apparatus for sealing, the installing apparatus for sealing, the installing apparatus for sealing into cylinder}

The present invention relates to devices for mounting a seal in a ring groove formed in a cylinder and an insertion method using the same.

In general, the cylinder and the piston are used as a motion converter such as a prime mover, a hydraulic machine, a compressor to convert the pressure of the gas or other fluid into a linear motion. The clearance between the cylinder and the piston is essential for smooth reciprocation of the piston, but some degree of tightness is required as the working fluid leaks between the clearances.

In the prior art, at least one groove is dug into the outer circumferential surface of the piston, and the piston ring is coupled to the groove to maintain airtightness. The coupling structure of the piston and the piston ring has the advantage that the ease of manufacture is increased because it is easy to process the groove on the exposed outer peripheral surface of the piston. However, there is a disadvantage in that the maintenance cost is high due to the groove processing and the piston ring coupled thereto when the piston is replaced.

Meanwhile, a ring groove may be formed on the inner circumferential surface of the cylinder, and a ring type sealing member may be mounted thereon. In this case, the outer diameter of the ring-type sealing member is at least larger than the inner surface of the cylinder, which makes it difficult to insert the sealing member into the ring groove.

The present invention has been made in view of the above-described problems, and has an object of enabling a fast and stable mounting of the seal in a ring groove formed on the inner wall surface of the cylinder by automated equipment.

In order to solve the above problems, the present invention provides an embodiment, after the outer diameter of the seal inserted into the ring groove formed on the inner circumferential surface of the cylinder is elastically deformed at least equal to or smaller than the inner diameter of the inner circumferential surface, the shape of the elastically deformed seal is maintained. It is inserted into the inner circumferential surface of the cylinder, to release the gripping of the seal in the ring groove to restore the sealing and to provide a method of inserting a seal mounted to the ring groove.

Herein, the elastic deformation of the seal may include (a) pressing one side of the seal toward the center of the seal to form an inwardly deformed portion recessed toward the center of the seal, and (b) wrapping the pressure around the seal. The outer diameter of the seal is to include the step of elastic deformation of the same or less than the diameter of the inner peripheral surface.

In addition, the restoration of the elastically deformed seal may be achieved by elastically pushing the inwardly deformed portion toward the outside of the circular shape of the seal.

In addition, the elastic deformation and restoration of the seal is characterized in that the plane is made.

The elastic deformation device of the sealing according to the embodiment of the present invention by pressing one side of the seal installed in the ring groove formed on the inner peripheral surface of the cylinder toward the center of the seal to form an inward deformation recessed toward the center, and the circumference of the seal The outer diameter of the sealing elastically deformed by pressing is characterized in that the elastic deformation is equal to or smaller than the inner diameter of the inner peripheral surface.

Specifically, the elastic deformation device of the seal includes a jig body on which the seal is seated, and a pressing pin for pressing one side of the outer circumferential surface of the seal seated on the jig body to elastically deform one side toward the inside of the seal. do.

In addition, the jig body may further include a circumferential pressing unit for pressing the circumference of the seal toward the center of the seal, the outer diameter of the seal being equal to or smaller than the inner diameter of the cylinder.

In a detailed configuration, the recessed groove is recessed in the upper surface and the through hole formed in the bottom surface of the seating groove coincides with the center of the seating groove, the long hole connected in one direction from the center of the through hole The jig body is formed, and the upper surface of the jig body and the surface facing each other toward the center of the through hole closer to or away from each other, each facing surface is formed recessed toward the center of the through hole, It may include a pair of pressing jig is formed with a guide groove for pressing the circumference of the sealing and the pressing pin which is movable in the through hole by the long hole.

Here, the radius of curvature of the guide groove may be smaller than the radius of curvature of the through hole, the thickness of the peripheral portion of the guide groove may be thinner than the upper and lower thickness of the sealing.

In addition, a pair of sliding surfaces that face each other toward or close to the center of the through-hole from the upper surface of the pressing jig, each pair is in contact with each other facing each other to block the space of the upper portion of the ceiling mounted on the jig body The blocking jig may further include.

In addition, while holding the shape of the seal elastically deformed to have the inwardly deformable portion, the upper and lower ends of the seal can be held and gripped, and the grip for the seal is restored so that the seal can be inserted into the ring groove. It may further comprise a removable gripping means.

On the other hand, the inserting device of the seal according to the embodiment of the present invention, which can be mounted as a tool of the manipulator, is inserted into the ring groove formed on the inner peripheral surface of the cylinder and the outer diameter of the ring-type sealing elastically deformed or less than the inner diameter of the inner peripheral surface, The gripping is performed to maintain the elastically deformed shape, and the sealing is restored by releasing the gripping from the ring groove.

Specifically, the insertion body portion that can be inserted into the cylinder, the insertion body portion is provided at the end, it may include a grip portion for temporarily fixing the seal by pressing the elastically deformed seal to the end surface of the insertion body portion. .

In detail, a grip body mountable to the manipulator, an insertion body portion protruding from the grip body and insertable into the cylinder, and one end portion of the insertion body portion protrudingly coupled to each other, are opened along the length direction. A rod portion having an accommodating groove, and provided at an end portion of the rod portion, having an outer diameter greater than an outer diameter of the rod portion, and having an open groove communicating with the accommodating groove and open in the same direction as the accommodating groove. It may include a gripping block.

In another embodiment, the inside of the receiving groove may further include a pressing portion which is elastically deformed to push the inward deformation portion of the seal into the receiving groove toward the outside of the insertion body portion.

In addition, one end of the pressing portion may be hinged to the inside of the receiving groove, the other end may be protruded to the outside of the rod portion to the outer peripheral surface of the gripping block by the rotation of the pressing portion.

In addition, the receiving groove may be provided with a pressing pin protruding toward the pressing portion, and the pressing portion may be formed with an inner groove recessed to receive the protruding end portion of the pressing pin.

According to an embodiment of the present invention, the productivity is increased by mounting the seal on the inner circumferential surface of the cylinder in an automated manner. In addition, even in the case of a directional seal, it is possible to always insert the seal in the correct direction, which also has the effect of reducing the assembly error.

1 is a view showing a seal according to the insertion method of the seal according to an embodiment of the present invention.
Figure 2 is a schematic view of the elastic deformation device of the seal and the insertion device of the seal according to an embodiment of the present invention.
Figure 3 is a schematic perspective view of the elastic deformation apparatus of the sealing according to the embodiment of the present invention.
4 is a schematic conceptual view of the elastic deformation apparatus of the sealing shown in FIG.
5 is a schematic exploded view of the inserting device of the seal according to the embodiment of the present invention.
Figure 6 is a perspective view schematically showing the state of use of the elastic deformation device of the seal and the insertion device of the seal according to an embodiment of the present invention.
Figure 7 is a perspective view schematically showing another use state of the elastic deformation device of the seal and the insertion device of the seal according to an embodiment of the present invention.
Figure 8 is a front view schematically showing another use state of the elastic deformation device of the seal and the insertion device of the seal according to an embodiment of the present invention.
Figure 9 is a front view schematically showing another use state of the elastic deformation device of the seal and the insertion device of the seal according to an embodiment of the present invention.
10 is a plan view schematically showing the main part of FIG. 9;
Figure 11 is a simplified cross-sectional view showing the insertion process of the seal on the inside of the cylinder.
12 is a partial cross-sectional view of the inserting device of the seal according to another embodiment of the present invention.
13 is an enlarged view of a portion A of FIG. 12.
14 is a perspective view showing a state of use of the insertion device of the sealing according to FIG.

In the exemplary embodiment of the present invention, the term 'sealing' is used in the same meaning as an oil ring for blocking leakage of lubricant, hydraulic oil, etc. in contact with the outer circumferential surface of the piston sliding in the cylinder. The seal has an outer shape of a substantially circular ring and is made of elastic material such as synthetic rubber to enable elastic deformation. The cross section of the seal is non-circular so that it can be directionally mounted inside the cylinder. That is, a lip contacting the outer circumferential surface of the piston may protrude in one direction in the seal mounted inside the cylinder. The shape of this lip or the cross-sectional shape of the seal can be changed. Alternatively, the cross section of the seal may be a simple circle.

A cylinder means a cylindrical space of a certain mechanical member, and a ring groove is formed therein for mounting a seal. For example, a cylinder to which hydraulic oil is supplied may be formed in a housing of a hydraulic pump used for an automobile brake. The present invention is widely applicable to various mechanical members, and is used to insert a cylinder having a cylindrical space and a seal having an outer diameter smaller than the inner diameter of the cylinder in a ring groove formed inside the cylinder.

According to the method for inserting a seal according to an embodiment of the present invention, the outer diameter of the seal is elastically deformed to be equal to the inner diameter of the cylinder, or elastically smaller than the inner diameter of the cylinder, and then the seal is maintained while maintaining the elastic deformation state of the seal. After gripping and moving to the inside of the cylinder to release the gripping is made to be mounted in the ring groove while the sealing is restored by the elasticity.

In an embodiment for implementing the method of inserting the seal, an elastic deformation apparatus of the seal and an insertion device of the seal are provided. The elastic deformation device of the seal is a device that elastically deforms the supplied circular sealing equal to or less than the inner diameter of the cylinder. The inserting device of the seal is a device for gripping the elastically deformed sealing in the elastic deformation device of the sealing as it is in the elastically deformed state and inserting it into the cylinder.

The elastic deformation device of the seal and the insertion device of the seal are provided in a pair and operate in conjunction with each other. Both the elastic deformation device of the seal and the insertion device of the seal can be made without an operator's direct operation by an automated device. However, according to the user's selection, the function of any one of the elastic deformation device of the seal or the insertion device of the seal may be directly in charge of the elastic deformation of the seal and mounted on the cylinder, such as the gripping means described later.

Hereinafter, with reference to the accompanying drawings will be described the function, configuration of the elastic deformation device of the sealing device and the inserting device of the sealing according to an embodiment of the present invention, and the method of inserting the sealing using the same. However, the same reference numerals for similar or identical components are used uniformly.

Referring to Figure 1, it shows step by step the elastic deformation of the sealing according to an embodiment of the present invention. The elastic deformation device of the sealing recesses one side of the circular sealing 100 to the inside of the sealing 100 to form the inward deformation part 110 so that the outer diameter of the sealing 100 is equal to or smaller than the inner diameter of the cylinder 210. It is elastic deformation (solid arrow).

The inserting device of the sealing is to hold the elastically deformed sealing 100 and to move the sealing 100 to the ring groove 220 of the cylinder 210, and to release the holding of the sealing 100 at that position (dashed arrow). ).

2 schematically shows a configuration of devices according to an embodiment of the present invention. The cylinder 210 is formed in the workpiece 200. The workpiece 200 may be various mechanical members. The workpiece 200 is fixed to the dedicated jig 310 installed radially on the turntable 300. The turntable 300 is intermittently rotated at a preset speed.

On the other hand, the elastic deformation device 1 of the sealing is provided in the work table 400. On one side of the work table 400, a plurality of seals are stacked. Although not shown, a moving tool for supplying the loaded seals to the elastic deformation device of the seals may be further provided. Of course, instead of the moving tool, the operator may supply the sealing to the elastic deformation device of the sealing.

On the other hand, the inserting device 2 of the seal is mounted as a tool on a manipulator (not shown) to move the seal to the cylinder on the turntable in the elastic deformation device of the seal. The manipulator may be a articulated robot of known configuration. Alternatively, the manipulator can be moved from the upper portion of the elastic deformation device 1 of the sealing to the upper portion of the cylinder 210 of the workpiece installed on the turntable 300 along the rail 510 installed on the ceiling, the balance 520. It may be replaced by an actuator 530 mounted to the lower portion of the). At the lower end of the actuator 530, a sealing inserting device 2 is mounted. On the contrary, in the elastic deformation apparatus of the seal, the cylinder may be horizontally moved and may have various mechanism configurations capable of vertical movement. Such manipulators, bogies, actuators and the like are performed using known algorithms.

Although not shown, the elastic deformation device of the plurality of seals and the insertion device of the seal may be provided along the outer circumferential surface of the turntable. In this case, the sealing device may be inserted into each of the plurality of ring grooves formed in the cylinder by varying the depth at which the inserting device of each seal is inserted into the cylinder.

3 to 4 are views related to the elastic deformation apparatus of the sealing.

The elastic deformation device (1) of the sealing according to the embodiment of the present invention by pressing one side of the seal installed in the ring groove formed on the inner peripheral surface of the cylinder toward the center of the seal to form an inward deformation recessed toward the center, the sealing The outer diameter of the elastically deformed seal by pressing the circumference of the elastically deforms the same or less than the inner diameter of the inner circumferential surface.

Specifically, the circumference of the seal body is connected to the jig body 11 and the jig body 11, the outer diameter of the seal is equal to or less than the inner diameter of the cylinder to press the circumference of the seal toward the center of the seal The pressing unit 12, and a pressing pin 13 for pressing the outer peripheral surface of the seal seated on the jig body, elastically deformed to recess one side toward the inside of the seal. Here, the circumferential pressing unit 12 may be omitted.

Jig body 11 is a plate-like member, the upper surface is formed with a recess groove 111 recessed to seal the seal. Therefore, the sealing raised on the seating groove 111 is mounted on the bottom surface of the seating groove along the step of the seating recess 111. The through hole 112 coincides with the center of the seating recess 111 through the bottom surface of the seating recess 111. The through hole 112 has a diameter smaller than the outer diameter of the sealing. The gripping portion 22 of the inserting device 2 of the sealing described later is inserted into the through hole 112.

A long hole 113 is formed at one side of the through hole 112 and extends upward and downward to one side of the through hole 112.

On the other hand, the pressing pin 13 is a member that can move inside the through-hole 112 through the long hole (113). In this case, the pressing pin 13 may be moved vertically with the plane movement along the long hole 113, so that the pressing pin 13 may be separated from the bottom of the long hole 113 or the through hole 112.

Referring back to FIG. 2, the lower end of the work table 400 is provided with a horizontal rail 410, and the pin body 131 is installed to be movable in the longitudinal direction of the horizontal rail 410. The pin body 131 and the horizontal rail 410 may have the same configuration as the EL guide. The upper and lower actuators 132 that can be extended or stretched up and down are provided on the upper portion of the pin body 131, and the pressing pin 13 is mounted on the upper end of the upper and lower actuators 132. In FIG. 2, the pressing pin 13 may be inserted into or separated from the long hole 113 or the through hole 112 by the extension of the upper and lower actuators 132, and the pressing pins may be pressed by the left and right sliding of the pin body 131. 13 may be horizontally moved from the long hole 113 to the through hole 112. At this time, the pressing pin descends from the long hole or through-hole and is separated from the lower operation is not necessarily required. In addition, the configuration of the L guide or the actuator described for sliding in the plane of the lifting operation of the pressing pin or the long hole can be changed to other mechanical configuration.

Again, referring to FIGS. 3 to 4, the circumferential pressing unit 12 is provided on the upper surface of the jig body 11 and is a member for pressing one side of the sealing 100 to the center of the sealing. The circumferential pressing unit 12 is slid so that the surfaces facing each other toward or away from each other toward the center of the through-hole 112 on the upper surface of the jig body 11, the through-hole 112 on each facing surface It may be a pair of pressing jig 121 is formed to be recessed toward the center of the guide groove 122 is formed to press the circumference of the sealing.

In addition, the surface facing each other toward the center of the through-hole 112 from the upper surface of each pressing jig 121 to slide closer or farther, each facing surface of the sealing raised on the jig body 11 It further comprises a pair of blocking jig 14 that can block the upper space. At this time, the blocking jig can be omitted.

Each facing surface of the blocking jig 14 has a recessed shape corresponding to the outer circumferential surface of the insertion body 21 to be described later, and the ground groove 141 is formed to be in contact with the outside of the insertion body. Surrounding the circumference of the insertion body portion 21 by the ground groove 141, both blocking jig 14 is in contact with each other to form a plane, it is possible to block the upper portion of the space formed in the lower portion.

4 schematically illustrates a configuration for sliding operation of the pressing jig 121 and the blocking jig 14. The jig body 11 is fixed to the work table and the like described above. A pair of pressing jigs 121 are slidably coupled to an upper portion of the jig body 11, and one side of the pressing jigs 121 is coupled to an LM guide moving on the straight rail 123. In addition, the other side of the pressing jig 121 is connected to the rack gear 124 parallel to the LM guide, each of the rack gear 124 is coupled to the spur gear 125 is free to rotate. Although not shown in the drawing, when one push jig 121 is moved by an actuator, the other push jig 121 is moved closer to or farther from each other. In this way, if the pressing jig to enable the sliding movement to face each other on the upper surface of the jig body, it is possible to change to a variety of operating means.

On the other hand, the blocking jig 14 may be connected to the pressing jig 121 by one end of the elastic jig 142 coupled to the upper surface of the pressing jig 121 and the other end of the pressing jig 121. The blocking jig is integrally movable together when the pressing jig is moved. In addition, since it is connected to the pressing jig 121 by the elastic means 142, the blocking jig 14 is restricted after the opposite surface of the blocking jig 14 contacts the insertion body described below. In this state, the pressing jig 121 may move closer to each other. The elastic means 142 may be a spring or an elastic rubber block, an absorber containing a working fluid and the like.

Alternatively, the blocking jig may be composed of an LM guide, a lex gear combination, or other known mechanical configurations, such as the pressing jig described above.

As a result, the pressing jig 121 and the blocking jig 14 has a structure that is sequentially stacked on the upper surface of the jig body 11, and has an operating structure for sliding so that the facing surfaces are close to or far from each other. . This operating structure is not limited to the examples presented.

5 is a schematic exploded view of the main part of the inserting device of the seal.

The inserting device of the seal according to the embodiment of the present invention can be mounted as a tool of the manipulator, and is inserted into a ring groove formed on the inner circumferential surface of the cylinder and has an elastically deformed shape of the ring-type sealing in which the outer diameter is equal to or smaller than the inner diameter of the inner circumferential surface. Holding to hold, and release the gripping in the ring groove is to restore the sealing.

The inserting device 2 of the seal is provided at the insertion body portion 21 which can be inserted into the cylinder, and at the end of the insertion body portion 21, and presses the elastically deformed sealing to the end surface of the insertion body portion. And a gripping portion 22 for temporarily fixing the seal.

3 shows the end of the insertion body 21 and the gripping portion 22 protruding therefrom. A space 22b in which a seal can be mounted between the end surface of the insertion body portion 21 and the inner locking jaw 22a of the holding portion 22 by the grip portion 22 protruding from the end of the insertion body portion 21. ) Is formed. When the gripping portion 22 is raised and the locking jaw 22a is directed toward the end of the insertion body portion 21, the upper and lower surfaces of the sealing located in the space 22b can be pressed to hold the sealing. Subsequently, when the gripping portion 22 is lowered, the gripping of the sealing is released while the length between the engaging jaw 22a of the gripping portion 22 and the end surface of the insertion body portion 21 opens. Therefore, the sealing can be gripped or released by the lifting and lowering of the gripper.

Referring to Figure 5 will be described the configuration of the insertion device of the sealing.

The inserting device 2 of the sealing includes a grip body 23 mountable to the manipulator, an insert body portion 21 protruding from the grip body 23 and insertable into the cylinder, and the gripping portion 22 described above. do.

At this time, the gripping portion 22 is a rod portion 221 is coupled to one end of the insertion body portion 21 so as to protrude, the receiving groove 221a is opened in the longitudinal direction, and An open groove provided at an end of the rod part 221 and having an outer diameter larger than the outer diameter of the rod part 221 and communicating with the receiving groove 221a and open in the same direction as the receiving groove 221a. And a gripping block 222 in which 222a is formed.

One side of the grip body 23 has various structures for mounting to the manipulator with bolts, clamps, and the like. On one side of the grip body 23, the cylindrical insertion body portion 21 protrudes long. The outer diameter of the insertion body portion 21 is equal to or smaller than the inner diameter of the cylinder and can be inserted into the cylinder.

The rod portion 221 is inserted into the hollow inside of the insertion body portion 21, and the end of the rod portion 221 is elevated to protrude in the longitudinal direction of the insertion body portion 21. The inside of the grip body 23 is provided with a mechanical configuration for lifting the rod by receiving compressed air, hydraulic oil or power transmitted from the outside. For example, one end of the rod portion may be coupled to the upper end of the rod portion to the piston of the actuator that is supplied with compressed air or hydraulic fluid. As another example, a gear that is rotated by a motor that is supplied with a power and rotates may be in a configuration or a solenoid that is engaged with a rack gear formed at one side of the rod. As such, the configuration of elevating the rod inside the insertion body may be variously changed.

The gripping block 222 is coupled to the end of the rod portion 221 in a substantially disk shape. The outer diameter of the gripping block 222 is at least larger than the outer diameter of the cross section of the rod portion 221 and is equal to or smaller than the outer diameter of the insertion body portion 21. As a result, as described above, the upper circumference of the gripping block 222 may form a locking step (see 22a of FIG. 3) of the gripping portion.

In addition, the rod portion 221 has a receiving groove 221a which is opened in the middle of the outer circumferential surface along the longitudinal direction and is open to the end of the rod portion 221. The receiving groove 221a is open toward one side of the outer circumferential surface at the center of the cross section of the rod portion 221 and is formed long in the longitudinal direction of the rod portion at the outer circumferential surface. Reaching the end of the rod 221 has a shape in which the end is bisected by the receiving groove.

On the other hand, the gripping block 222 is formed with an opening groove 222a communicating with the receiving groove 221a of the rod part 221 and open in the same direction as the receiving groove 221a. The open groove 222a penetrates the upper and lower surfaces of the gripping block 222.

When the gripping block 222 is coupled to the end of the rod by a bolt or the like, the receiving groove 221a and the opening groove 222a form a groove that is continuously opened in the same direction (the shape of the gripping portion of FIG. 3). Reference).

Hereinafter, with reference to the accompanying drawings will be described the operation of the above-described elastic deformation device of the seal and the insertion device of the seal and the method of inserting the seal according to an embodiment of the present invention.

According to the method for inserting a seal according to an embodiment of the present invention, after the outer diameter of the seal inserted into the ring groove formed on the inner circumferential surface of the cylinder is elastically deformed at least equal to or smaller than the inner diameter of the inner circumferential surface, the form of the elastically deformed seal is It is retained and inserted into the inner circumferential surface of the cylinder, release the gripping of the seal in the ring groove to restore the seal and is mounted on the ring groove.

At this time, the elastic deformation of the seal (a) pressing one side of the seal toward the center of the seal to form an inward deformation recessed toward the center of the seal, and (b) wrapped around the seal to press And an elastic deformation of the outer diameter of the seal equal to or smaller than the diameter of the inner circumferential surface.

2 and 3, the pressing jig 121 and the mounting jig 14 are separated from each other in the elastic deformation device 1 of the sealing, and the insertion body 21 of the insertion device 2 of the sealing is separated. Is in a position away from the jig body 11. In this case, the pressing pin 13 may be in a state of being separated from the lower hole hole 113 or inserted into the long hole hole 113. At this time, one sealing 100 is mounted on the seating groove 111 of the jig body (11).

Then, as shown in Figure 6, the insertion device of the seal is moved to the upper portion of the through hole, the end of the insertion body portion 21 is substantially the same or more than the upper surface of the seal 100 mounted on the jig body 11 Lower to a higher position. In addition, the rod portion 221 is lowered at the end of the insertion body portion 21, the gripping block 222 is in a state lowered further than the bottom surface of the seating groove. In addition, the receiving groove 221a of the rod 221 and the opening groove 222a of the gripping block 222 face the long hole 113. At this time, the pressing pin 13 stays in the long hole (113).

On the other hand, the gripping means may be further provided to replace the insertion body. Such gripping means may have substantially the same configuration as the insertion body portion. Alternatively, the gripping means may be presented as any tool that bites the top and bottom of the elastically deformed seal to have its inwardly deformed portion and grips to fix its shape. These tools are insertable into the cylinder and release the gripping to allow the elastically deformed seal to self-restore and to be inserted into the ring groove. The gripping means may be operated manually by an operator, or may be automatically operated according to a preset program having the same or similar configuration as the above-described sealing inserter.

7 is a state in which the pressing pin 13 is horizontally moved to the center of the through-hole through the long hole 113 and the receiving groove (221a). The pressing pin 13 moves to the center of the through hole to press one side of the sealing 100 to form an inward deformation part 110 recessed into the center of the sealing 100. The inward deformation portion 110 enters the receiving groove 221a of the rod portion 221. At this time, the opening groove of the gripping block is opened toward the long hole to allow the pressure pin to move without interference to the center of the through hole.

As the inward deformation portion 110 enters the receiving groove of the rod portion 221 by the pressure pin 13, the outer circumferential surface of the sealing 100 is reduced. If the pressing pin is sufficiently introduced into the center of the through hole, the seal is enclosed around the rod portion, thereby reducing the overall outer diameter of the seal.

At this time, when the rod portion rises, the upper circumference of the gripping block and the lower end of the insertion body portion is close, it is possible to grip the circumference of the elastically deformed sealing. However, hereinafter, it will be described in the embodiment that the pressing jig and the blocking jig is further provided that the sealing after their action is gripped by the inserting device of the sealing.

8 to 10 show the action by the pressing jig and the blocking jig.

Immediately after the inward deformation portion by the pressing pin 13 is elastically deformed or at the same time, the pressing jig 121 and the blocking jig 14 approach from the left and right sides.

The facing surface of the blocking jig 14 protrudes more than the pressing jig 121, so that the ground groove 141 is inserted into the insertion body before the pressing jig 121 approaches the through hole, as shown in FIG. 8. In contact with the portion 21, the blocking jig 14 is to block the upper portion of the sealing (100). At this time, the bottom surface of the blocking jig 14 may be set to be aligned with the same height as the end surface of the insertion body portion 21, or located below it. More precisely, the lower surface of the blocking jig 14 may be positioned at the upper surface height of the sealing 100.

The blocking jig is positioned above the sealing to prevent the sealing from being elastically deformed upside down. The phenomenon that the seal is flipped up and down is caused when the seal is raised to the seating groove and the seal is not raised to the center of the seating groove due to mechanical tolerances, play, or manual position error, or the seal is pushed back slightly by the pressure pin. In this case, the thickness of the sealing is thin and may occur in the case that the pressing pin does not sufficiently enter the center of the through hole. As such, the seal may be inverted due to the initial position of the seal or the play of the device, and it is understood that this occurs mainly at the time of circumferential press by the pressing jig described below.

Since the blocking jig 14 is located close to the upper surface of the sealing 100 and closes the upper space near the upper portion of the sealing 100, it is possible to suppress fluctuations that are twisted up and down to invert the sealing. Therefore, the sealing is twisted and upside down phenomenon is prevented. Such a blocking jig ensures that the directional seal is mounted in the correct direction, thereby reducing the rate of defective products due to assembly errors.

Thereafter, as shown in FIGS. 9 and 10, the circumference of the seal is pressed by the pressing jig, so that the outer diameter of the seal can be reliably equal to or smaller than the inner diameter of the cylinder.

Facing surfaces of the pressing jig 121 are close to each other, the guide groove 122 is wrapped around the sealing 100. At this time, the radius of curvature of the guide groove 122 is a radius of curvature corresponding to the outer diameter of the desired sealing. As shown in FIG. 10, the facing surfaces of the pressing jig 121 are in contact with each other, and the outer diameter of the sealing 100 pressurized by both of the guide grooves 122 is in the radius of curvature of the guide grooves 122. Therefore, elastic deformation is surely made equal to or smaller than the inner diameter of the cylinder.

In this way, the pressing jig elastically deforms the outer diameter of the seal to be equal to or smaller than the inner diameter of the cylinder. Therefore, even when the outer diameter of the seal becomes larger than the inner diameter of the cylinder at the time of elastic deformation of the seal by the pressing pin due to the above-described assembly error, the outer diameter of the seal can be reliably reduced by the action of an additional pressing jig. Therefore, the reliability of reducing the outer diameter of the seal is improved.

On the other hand, the radius of curvature of the guide groove may be smaller than the radius of curvature of the through hole, the thickness of the peripheral portion of the guide groove may be thinner than the upper and lower thickness of the sealing.

That is, the inner diameter of the circle formed by the combined guide grooves is smaller than the inner diameter of the cylinder, and the inner diameter of the through hole may be the same as the inner diameter of the cylinder. In this case, when the facing surfaces of the pressing jigs are in contact with each other, the circumferential edge of the guide groove may reach the locking jaw of the gripping portion through the upper end of the through hole.

Then, when the rod portion rises, since the seal is thicker than the periphery of the guide groove, the end surface of the insert rod portion and the upper circumference of the gripping block do not interfere with the periphery of the guide groove, while holding the seal while contacting the top and bottom surfaces of the seal. You can do it. The upper and lower surfaces of the sealing body held between the insertion body portion and the gripping block maintain the elastic deformation state.

After the inserting device of the seal grips the elastically deformed seal, the pressing jig and the blocking jig again open apart from each other on both sides. At this time, the pressing pin may be lowered, but the lowering of the pressing pin is not necessarily required.

The insertion device of the seal raised from the jig body by the operation of the manipulator is released from the elastic deformation device of the seal, the insertion body portion is inserted into the cylinder.

Figure 11 shows the end of the insertion body portion inserted into the cylinder briefly. The elastically deformed sealing 100 smaller than the inner diameter of the cylinder 210 is moved in the state held by the insertion body 21 to the height of the ring groove 220. Thereafter, when the rod 221 and the gripping block 222 are lowered, the pressing force holding the sealing is released, the sealing 100 is elastically restored, and the installation is completed by entering the sealing groove 220.

12 to 14 are related to the inserting device of the seal according to another embodiment of the present invention. The inserting device of the sealing according to another embodiment includes the following features while still including the features of the inserting device of the sealing shown in FIGS.

12 to 13, the inward deformation portion of the seal that is elastically deformed into the accommodation groove 221 a formed in the rod part 221 and enters the accommodation groove 221 a may be disposed outside the insertion body part 21. A pusher 24 is further included that can be pushed toward.

One end portion 241 is hinged to the inner side of the receiving groove 221a, the other end portion 242 to the outer peripheral surface of the gripping block 222 by the rotation of the pressing portion 24 It can protrude outward.

One end 241a of the pressing part 24 is hinged to the inner surface of the receiving groove 221a, and the other end 241b of the one end 241 is pressurized by a separate push member P. Can be. At this time, the push member (P) may be made of a variety of configurations, such as a solenoid, pneumatic actuator, the pressing portion 24 by pressing the other side 241b of one end 241 one end 241 one side 241a It is to make it rotatable as a reference.

The pressing portion 24 is smaller in width toward the other end 242, the other end 242 is capable of swinging in the receiving groove 221a and the opening groove 222a when the pressing portion 24 rotates. The other end 242 is protruded to the outer circumferential surface of the holding block 222 when the pressing part 24 is strongly rotated by the push member (P). That is, the other end may escape the outer circumferential surface of the rod 221, but does not deviate from the outer circumferential surface of the gripping block 222.

Figure 14 shows the action of the insertion device of the seal according to another embodiment of the present invention. The pressing part 24 is pushed by the inward deformation part 110 when the inward deformation part of the seal enters the accommodation groove by the pressure ring, and is moved inwardly of the accommodation groove 221a. Then, the grip of the elastically deformed seal is made, the rod portion 221 is extended in the ring groove, the grip of the seal 100 is released. At the same time, the pressing member 24 is rotated while the push member is operated, whereby the other end portion 242 of the pressing portion 24 strongly pushes the inward deformation portion 110 outward.

At this time, the receiving groove (221a) is provided with a pressing pin (P1) protruding toward the pressing portion 24, the pressing portion 24 is recessed to accommodate the protruding end of the pressing pin (P1). Inner grooves 241c are formed.

The pressing pin P1 protrudes from the inside of the receiving groove by the operation of the push member P to press the pressing part 24. When the push member P is a pneumatic actuator, the push pin P1 is a member which is moved toward the push part by the air blown out from the push member. On the contrary, in the case where the push member has a configuration such as a solenoid, the push pin may be an end of the operating shaft of the solenoid for pressing the pusher.

An end of the push pin P1 is formed with a convex curved surface, and an inner groove 241c having a curved surface is formed in the pressing portion to be recessed correspondingly. Therefore, in the drawing, the push pin protruding in the vertical direction may be partially inserted into the inner groove to press the inner groove. In this way, the push pin can accurately press the inner groove every time, the rotation operation of the push pin is made reliably.

In this case, the restoration of the elastically deformed seal has an advantage that the installation by the restoration of the elastically deformed seal is surely performed by pushing the inwardly deformed portion toward the outside of the circular shape of the seal. That is, the restoration of the above-described seal is made by the restoring force of the seal itself and at the same time additionally made by the pressing part, thereby having the advantage of reliably restoring the seal. That is, the reliability of the operation is improved. In addition, even in the case of a seal made of a material having a somewhat less elasticity, since the restoration can be immediately performed by the pressing part, it is possible to reduce the loss of waiting time until the seal is settled in the ring groove by the slow restoration.

Since the other end of the pressing part 24 may protrude to the outside of the rod part 221, the other end of the pressing part 24 may be pushed to a point where the sealing is seated in the ring groove. In addition, the pressing portion 24 does not protrude beyond the outer circumferential surface of the gripping block 222, thereby causing no interference when the gripping block and the insertion body portion are inserted into the through holes of the jig body.

The elastic deformation and restoration of the seal is that the elastic deformation and restoration of the seal is on a plane. As the elastic deformation and restoration of the seal is made in the plane, the top and bottom of the directional seal may not be inverted, but may be installed in the ring groove in the correct direction. In addition, since the sealing can be continuously attached to the plurality of mechanical members by automation, assemblability is improved.

On the other hand, the pressing portion 24 can help the sealing to be mounted in the ring groove stably. Specifically, the insertion end is rotated while the other end 242 of the pressing part 24 protrudes from the receiving groove, so that the other end may press the inner surface of the sealing inserted into the ring groove.

At this time, the rotation of the pressing portion may be made by the rotation of the rod portion relative to the insertion fixing, the insertion fixing and rotation of the rod body relative to the grip body, or may be made by the rotation of the grip body about the end of the manipulator. The configuration for this can be implemented in a variety of known configurations, such as a drive motor having an output shaft coupled to the gear, and a driven gear meshed with the gear and coupled to the pressing portion, insertion fixing or grip body.

As the pressing part rotates and the other end presses the inner circumferential surface of the sealing, even when the sealing is seated against the ring groove, the sealing can be stably installed in the ring groove by pressing the other end.

One; Elastic deformation device
11: jig body 111: seating groove 112: through hole 113: long hole
12: circumferential pressing unit 121: pressing jig 122: guide groove
123: straight rail 124: leg gear 125: spur gear
13 pressure pin 131 pin body 132 up and down actuator
14: blocking jig 141: ground groove 142: elastic means
2: Insertion device
21; Insert Body
22: grip portion 22a: locking jaw 22b: space 23: grip body
221: rod portion 221a: receiving groove 222: gripping block 222a: open groove
24: pressing part 241: one end 241a: one side 241b: the other side
242: other end 241c: inner groove
P: Push member P1: Push pin
100: sealing 110: inward deformation portion
200: workpiece 210: cylinder 220: ring groove
300: turntable 310: dedicated jig
400: worktable 410: horizontal rail
510: rail 520: bogie 530: actuator

Claims (17)

delete delete delete delete By elastically deforming the seal to mount the seal in the ring groove of the cylinder,
Jig body, where the sealing can be raised,
A pressing pin installed on the jig body and capable of pressing the seal, and
A circumferential pressure unit disposed on the jig body and capable of pressing the circumference of the seal
Including;
The circumferential pressing unit,
Push jig which is slidably arranged on the upper surface of the jig body and can press the circumferential surface of the sealing and
A blocking jig that is slidably disposed on an upper surface of the pressing jig and can block an upper space of the sealing seated on the jig body.
Containing
Sealing elastic deformation device. The method of claim 5,
The jig body has a seating groove in which the seal is raised, a through hole coinciding with the seating groove and formed on the bottom surface of the seating groove, and a long hole connected in one direction from the center of the through hole. ,
The pressing jig is a pair, and the pair of the pressing jig is respectively slid so as to face each other toward or away from the upper surface of the jig body toward the center of the through-hole, a pair of the pressing jig facing each other The surface is formed with a guide groove for pressing the circumference of the seal
Sealing elastic deformation device. The method of claim 6,
The radius of curvature of the guide groove is smaller than the radius of curvature of the through hole, the thickness of the peripheral portion of the guide groove is elastic deformation device of the sealing thinner than the upper and lower thickness of the seal. The method of claim 5,
The blocking jig is a pair, the pair of the blocking jig is sliding on the upper surface of the pressing jig, respectively, the pair of the blocking jig elastic deformation device of the sealing groove is formed on the surface facing each other. The method of claim 5,
And a gripping means for holding the elastically deformed seal and restoring the elastic deformation of the held seal to engage the ring groove of the cylinder. By holding the elastically deformed seal and releasing the grip of the seal in the ring groove of the cylinder to restore the elastic deformation of the seal,
Insert body portion that can be inserted into the ring groove,
A gripping portion positioned at the end of the insertion body portion and capable of temporarily fixing the sealing elastically deformed, and
One end portion is rotatably hinged to the gripping portion and the other end portion is pressed by the other end to restore the elastic deformation of the seal
Including;
The other end of the pressing portion may protrude to the outside of the gripping portion when restoring the elastic deformation of the sealing.
Insertion device for sealing. 11. The method of claim 10,
Sealing insertion device that can be mounted to the manipulator and comprises a grip body connected to the insertion body portion. 11. The method of claim 10,
The gripping portion,
A rod portion having one end portion protruded to an end portion of the insertion body portion and having a receiving groove open along a length direction;
A gripping block is provided at the end of the rod portion, the gripping block having an outer diameter larger than the outer diameter of the rod portion and in communication with the receiving groove and open grooves open in the same direction as the receiving groove.
/ RTI >
The sealing may be located between the end of the gripping block and the insertion body portion
Insertion device for sealing. The method of claim 12,
The push pin is installed on the holding part and can rotate the pressing part. The pressing part facing the push pin is formed with an inner groove accommodating the end portion of the pressing pin, and the outer side of the holding part. The other end of the pressing portion protruding the insertion device of the sealing can protrude to the outside of the rod portion to the outer peripheral surface of the holding block. By holding the seal elastically deformed, restoring the gripped seal in the state of being inserted into the ring groove of the cylinder to be mounted on the ring groove,
Jig body can be raised elastically deformed sealing,
A gripping portion penetrating the seal,
Insertion body portion connected to the gripping portion,
The pressing pin is installed on the jig body and can form an inward deformation portion by pressing the seal,
A circumference including a pressing jig which is slidably disposed on the top surface of the jig body and which is slidably disposed on the pressing jig and a blocking jig which is slidably disposed on the pressing jig and can block an upper space of the sealing is provided. Abubu, and
One end portion is rotatably coupled to the gripping portion and the other end portion is a pressing portion capable of restoring the elastic deformation of the seal by rotation
Apparatus for mounting the seal in the ring groove of the cylinder comprising a. The method of claim 14,
The jig body has a seating groove in which the seal is raised, a center of the seating groove and a through hole formed at a bottom surface of the seating groove, and having a part of the gripping portion positioned, in a direction from the center of the through hole. A long connected long hole is formed,
The pressing jig is a pair, and the pair of the pressing jig is respectively slid so as to face each other toward or away from the upper surface of the jig body toward the center of the through-hole, a pair of the pressing jig facing each other Apparatus for mounting the seal in the ring groove of the cylinder is formed on the surface is formed with a guide groove for pressing the circumference of the seal. The method of claim 14,
The gripping portion,
A rod portion having one end portion protruded to an end portion of the insertion body portion and having a receiving groove open along a length direction;
A gripping block is provided at the end of the rod portion, the gripping block having an outer diameter larger than the outer diameter of the rod portion and in communication with the receiving groove and open grooves open in the same direction as the receiving groove.
/ RTI >
The sealing may be located between the end of the gripping block and the insertion body portion
A device for mounting a seal in a ring groove of a cylinder. 16. The method of claim 15,
The blocking jig is one end is coupled to the upper surface of the pressing jig and the other end is connected to the pressing jig by the elastic means coupled to the blocking jig, the blocking jig is movable together when the pressing jig moves, Apparatus for mounting a seal in the ring groove of the cylinder that the push jig can slide in a state in which the movement of the blocking jig is limited.

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