KR101815789B1 - Apparatus and Method For Assembling Valve Stem Guide - Google Patents

Abstract

The present invention provides an apparatus and method for assembling a stem guide. The apparatus comprises: a jig base in which a groove for press-fitting assembly is formed at the center thereof; a first transfer unit provided on one side of the jig base, and moving a first member waiting ahead to be positioned in the groove of the jig base; a second transfer unit provided on the other side of the jig base, and moving a second member waiting ahead to be stacked on the first member positioned in the groove of the jig base; a striking unit provided on the jig base, and striking a flange portion of the second member stacked on the first member with a striking bar positioned on a vertical line from the groove of the jig base so that the first member and the second member are pressed and assembled; and a third transfer unit provided behind the jib base, and transferring the first member and the second member supplied from both sides to have the first and second members wait ahead of the first and second transfer units while pushing and discharging a stem guide, which is completed by press-fitting assembling of the first member and the second member. According to the present invention, the first member of a sintered material excellent in wear resistance and the second member of stainless steel excellent in rigidity are press-fitted in an automatic manner to increase stability of the engagement and improve quality and productivity of the stem guide and convenience in operation.

Description

Technical Field [0001] The present invention relates to a stem guide assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem guide assembling apparatus and an assembling method, and more particularly, to a stem guide assembling apparatus and method for assembling a stem guide which is press-fitted into a cylinder head of an engine to guide a stem of the valve.

BACKGROUND ART [0002] Generally, an engine provides a linear motion force to a piston by exploding fuel in a combustion chamber composed of a cylinder, a cylinder head and a piston, and the piston is caused to generate a rotational force in the crankshaft while performing a linear reciprocating motion in the cylinder.

The cylinder head of such an engine is provided with a valve for opening and closing the intake and exhaust ports, respectively. The cylinder head serves to guide the reciprocating operation of the valve and to transfer the heat to the cylinder head as the temperature of the valve increases. A valve stem guide (also referred to as a valve guide) is inserted.

Here, since the valve stem guide is made of a sintered material, there is a problem that the tip of the valve stem guide is broken or worn during the forced press-fitting.

In addition, the port of the cylinder head is formed as a casting, and the mechanical strength of the valve stem guide of the sintered material is deteriorated.

In recent years, the tip guide and the rear end of the stem guide are manufactured differently in order to prevent breakage or wear of the tip of the stem guide when the stem guide is press-fitted, and to increase the mechanical strength. That is, the stem guide is manufactured by press-fitting a second member made of stainless steel to the outside of one end of a first member made of a sintered material having a hollow formed therein to linearly move.

However, when the first member of the sintered material and the second member of the stainless material are manually inserted, the stability of the coupling is lowered, the quality of the stem guide is deteriorated, defects are generated, and the productivity is deteriorated.

Korea Patent Publication: 1997-0006767 (Published Feb. 21, 1997)

Korea Patent Publication No. 2002-0049959 (published Jun. 26, 2002))

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

An object of the present invention is to provide a stem guide which improves the stability of the engagement by pushing and assembling a first member made of a sintering material excellent in wear resistance and a second member made of a stainless steel having an excellent rigidity by an automatic method, And a method of assembling the same.

According to an aspect of the present invention, there is provided an apparatus for assembling a stem guide, comprising: a jig base having a groove formed therein at a center thereof; A first conveying unit provided at one side of the jig base for conveying a first member waiting in the front and positioning the first member in the groove of the jig base; A second conveying unit provided on the other side of the jig base for conveying a second member waiting in front of the jig base and stacking the second member on the first member located in the groove of the jig base; And a striking bar provided on the jig base and disposed on a line perpendicular to the groove of the jig base to strike a flange portion of the second member stacked on the first member to press-fit the first member and the second member, unit; And a stem guide provided at the rear of the jig base to push and discharge the completed stem guide of the first member and the second member, and at the same time, transferring the first member and the second member supplied from both sides, And a third conveying unit for waiting in front of the front and the second conveying unit.

In addition, in the groove of the jig base, a support pin inserted into the first member located in the groove, a slider provided on the outer side of the support pin to support the first member, and a resilient member Is provided.

Preferably, the support pin is provided as a cylindrical body supporting the inner wall of the first member so that the inner diameter of the first member is not contracted by press-fitting of the second member when the striking rod strikes the flange portion of the second member.

The first transfer unit includes a guide block having a shape in which the upper and lower surfaces of the guide block are pierced so as to pass through the striking bar of the striking unit while the first transfer unit is pushed in a state of receiving the first member waiting in the forward direction and guided to the groove of the jig base And a cylinder for transporting the guide block before and after the guide block.

The second conveying unit includes a guide block having a shape in which the upper and lower surfaces of the guide block are pierced so that one side of the second conveying unit is pushed in a state of receiving a second member waiting in front and guided to the groove of the jig base, And a support block for supporting the guide block such that the second member guided by the groove of the jig base is placed on the first member to heighten the conveyance height of the guide block And the support block has a height equal to a height of the first member positioned in the groove of the jig base.

The striking unit may include a cylinder for raising and lowering the striking rod, and a plate coupled to an upper end of a vertically standing support for fixing the cylinder, The striking bar is provided with a hollow circular bar that receives the second member other than the flange portion so as to strike only the flange portion of the second member and prevent the outer diameter of the second member from expanding when the second member is press-fitted into the first member desirable.

The third transfer unit may include a first guide groove formed on the entire surface of the protrusion at the center so as to push the assembled stem guide first, and a second guide groove formed at the center of the protrusion so that the first member and the second member supplied to both sides of the protrusion are received, A guide block in which second and third guide grooves are formed so as to be positioned in front of the first transfer unit and the second transfer unit, and a cylinder for transferring the guide block forward and backward.

A first part feeder is provided on one side of the third conveyance unit for automatically feeding the first member in front of the second guide groove of the third conveyance unit one by one and the second member is provided on the other side of the third conveyance unit. And a second part feeder that automatically feeds the third feed units one by one in front of the third guide grooves.

In addition, a discharge passage is formed in the upper surface of the jig base to guide the discharge of the stem guide which the third transfer unit pushes and discharges.

And a fourth transfer unit for receiving the signal from the sensor unit and separating the stem guide determined to be defective from the sensor unit, .

The fourth transfer unit includes a cylinder installed at one side of the discharge passage in a direction perpendicular to the discharge passage and a guide block for pushing a stem guide judged to be defective by linear motion of the cylinder and discharging the stem guide to the other side of the discharge passage .

The method of assembling a stem guide according to an embodiment of the present invention includes the steps of: waiting for the first member to be automatically fed in front of the first conveying unit and waiting for the second member to be automatically fed in front of the second conveying unit; (S20) of transferring a first member waiting in front of the first transfer unit and placing the first member in the groove of the jig base; S30, in which the second transfer unit transfers the second member waiting in the front and stacks the second member on the first member located in the groove of the jig base; (S40) of pushing and assembling the first member and the second member by striking the flange portion of the second member stacked on the first member with the striking bar of the striking unit; And a step S50 of transferring the stem guide in which the first and second members are assembled by press-fitting the third guide unit to the discharge passage and discharging the stem guide.

In addition, after the step S50, a step S60 of detecting a defect by sensing the height of the stem guide passing through the discharge passage, And a step S70 of packaging the stem guide of the stationary product passing through the discharge passage.

In the step S40, the striking bar of the striking unit descends to be inserted into the groove of the jig base while striking the flange portion of the second member. The second member is received in the striking rod striking the flange portion, And the first member is inserted into the outside of the support pin in the groove and press-fitted into the inside of the second member.

According to the embodiment of the present invention, the first member of the sintering material excellent in wear resistance and the second member of the stainless steel excellent in rigidity are press-fitted and assembled by an automatic method, thereby improving the stability of the engagement and improving the quality and productivity of the stem guide. So that the convenience of the operation is improved.

1 is a side view showing a stem guide assembling apparatus according to an embodiment of the present invention;
FIG. 2 is a plan view of a stem guide assembling apparatus according to an embodiment of the present invention; FIG.
FIG. 3 is a perspective view showing the internal structure of the jig base groove in the stem guide assembling apparatus according to the embodiment of the present invention, the structure in which the first member and the second member are stacked by the first transfer unit and the second transfer unit, Enlarged view showing the cross-sectional structure of the impact rod.
FIG. 4 is a cross-sectional view of a third embodiment of a stem guide manufacturing apparatus according to an embodiment of the present invention. FIG. 4 is a cross- 2, and the third guide grooves in sequence.
5 (a) and 5 (b) are a front sectional view and a plan view showing that the first transfer unit places the first member in the groove of the jig base.
6 (a) and 6 (b) are a front sectional view and a plan view showing a state in which the second transfer unit stacks the second member on top of the first member located in the groove of the jig base.
7 is a front sectional view showing a state in which the striking unit strikes the flange of the second member to press-fit the first member and the second member.
8 (a) and 8 (b) are a front sectional view and a plan view showing a state in which the stem guide having been press-fitted and assembled is drawn out to the outside of the groove when the striking unit is lifted and the external force is removed.
9 (a) and 9 (b) show a state in which the third conveying unit pushes the stem guide in which the press-fitting assembly has been completed, and discharges the stem guide to the discharge passage, and the first member and the second member are disposed in front of the first conveying unit and the second conveying unit Side sectional view and a plan view showing a standby state
FIG. 10 is an enlarged view of a fourth part of the fourth conveying unit, which is provided in the discharge passage to separate the sensor unit for discriminating the defects of the stem guide from the defective stem guide.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, a method and apparatus for assembling a stem guide according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For purposes of this specification, like reference numerals in the drawings denote like elements unless otherwise indicated.

Referring to FIG. 3, the structure of the stem guide assembling apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 3 shows an internal structure of the jig base groove, A structure in which a first member and a second member are stacked by a unit and a cross-sectional structure of a striking rod of the striking unit will be described. Referring to Fig. 4, A state in which the first member and the second member are sequentially supplied to the second and third guide grooves formed on both sides of the third transfer unit will be described and with reference to Figures 5 to 9, And a fourth transfer unit for separating the faulty stem guide from the sensor unit for selecting the defect of the stem guide discharged to the discharge channel will be described with reference to FIG.

First, the stem guide 10 of the present invention is manufactured by press-fitting and assembling a first member 11 of a sintered material excellent in wear resistance and a second member 12 of a stainless steel material.

Here, the first member 11 made of a sintered material is formed with a hollow so that the valve stem is inserted therein and linearly moves, and a step 11a due to a difference in outer diameter is formed outside the one end.

A flange portion 12a having a diameter larger than the outer diameter of the second member 12 made of stainless steel is formed on the outer side of the one end of the second member 12, And has a gradually narrowing shape.

The first member 11 and the second member 12 are supplied to both sides of the stem guide assembling device through the automatic feeder, that is, the part feeders 110 and 120, respectively.

1 to 4, a stem guide assembling apparatus according to an embodiment of the present invention includes a jig base 200, a first transfer unit 300, a second transfer unit 400, a striking unit 500, , And a third transfer unit (600).

The jig base 200 is placed on the pedestal 100 and a groove 210 for press-fitting the first member 11 and the second member 12 of the stem guide is formed at the center of the upper surface.

A first transfer unit 300 is disposed on one side of the groove 210. A second transfer unit 400 is disposed on the other side of the groove 210. A third transfer unit 600 are disposed.

A first part feeder 110 for automatically feeding the first member 11 is disposed between the first transfer unit 300 and the third transfer unit 600, A second part feeder 120 for automatically feeding the second member 12 is disposed between the transfer units 600.

In addition, a discharge passage 700 for discharging the stem guide 10, which is press-fitted and assembled, is formed in front of the groove 210 of the jig base, and a striking unit 500 is disposed on the upper portion of the groove.

As shown in FIG. 3, the groove 210 of the jig base includes a support pin 220 inserted into the first member 11 positioned in the groove 210, A slider 230 for supporting the first member 11, and an elastic member 240 for elastically supporting the slider.

The support pin 220 supports the inner wall of the first member 11 so that the inner diameter of the first member 11 is not contracted when the striking unit 500 strikes the first member 11 . Therefore, it is preferable that the support pin 220 is provided as a cylindrical body so as to support the inner wall of the first member.

The slider 230 is provided on the outer side of the support pin 220 to support the bottom surface of the first member 11 positioned in the groove 210 and descend by an external force applied when the striking unit 500 is struck And is raised and lowered by the restoring force of the elastic member (240).

The elastic member 240 is compressed by the lowering of the slider 230 when the striking unit 500 hits the slider 230 and provides a restoring force when the external force is removed after the striking, Move to the pre-striking position.

2, the first transfer unit 300 is disposed on one side of the groove 210 in the upper surface of the jig base 200. As shown in FIG.

The first transfer unit 300 is opened from the first part feeder 110 so as to be pushed into the groove 210 of the jig base in a state of receiving the first member 11 waiting in the front side, And a cylinder 320 connected to the guide block 310 for transferring the guide block 310 forward and backward.

That is, the first transfer unit 300 moves the guide block 310 by the linear movement of the cylinder 320, and the guide block 310 pushes the first member 11 waiting in the forward state And guides it to the groove 210 of the jig base.

The second transfer unit 400 is disposed on the other side of the groove 210 on the upper surface of the jig base 200.

2 and 3, the second transfer unit 400 is pushed in a state of receiving the second member 12 which is supplied from the second parts feeder 120 and waits in the forward direction, A guide block 410 having a shape in which the upper and lower surfaces of the striking unit 510 are opened to allow the striking bar 510 of the striking unit to pass through the guide block 410 and a cylinder And a second member 12 guided to the groove 210 of the jig base is supported on the first member 11 so as to support the bottom surface of the guide block 410, (430). Here, the support block 430 has the same height as the height of the first member 11 positioned in the groove 210 of the jig base.

That is, the second transfer unit 400 moves the guide block 410 by the linear motion of the cylinder 420, and the guide block 410 pushes the second member 12 waiting for the front side And is stacked on top of the first member (11) located in the groove (210) of the jig base.

The striking unit 500 is provided on the top of the jig base 200.

The striking unit 500 includes a striking bar 510 positioned on a vertical line with the groove 210 of the jig base, a cylinder 520 for lifting and lowering the striking rod, and a plate 530 for fixing the cylinder . Here, the plate 530 is coupled to the upper end of the support 540 vertically installed on the pedestal 100, and is positioned on the upper portion of the jig base 200.

That is, the striking unit 500 descends the striking rod 510 by the linear movement of the cylinder 520, and when the striking rod 510 is lowered, The second member 12 is forcibly press-fitted into the stepped end of the first member 11 by striking the second member 12a.

At this time, the striking rod 510 strikes only the flange portion 12a of the second member 12 at the time of striking, and when the second member 12 is press-fitted into the first member 11, The second member 12 outside the flange portion 12a is accommodated. Accordingly, the striking rod 510 is provided with a hollow circular rod so that the second member 12 having a shape of narrowing the outer diameter toward the top is received therein.

The third transfer unit 600 is disposed at the rear of the groove 210 in the upper surface of the jig base 200.

4, the third transfer unit 600 includes a protrusion 611 protruding toward the groove 210 of the jig base at a center thereof, and a semicircle (not shown) is formed at the front surface of the protrusion 611 so as to surround the rear of the stem guide. A first member 11 and a second member 12 which are automatically supplied from the first and second parts feeders 110 and 120 are accommodated in both sides of the rear end of the protrusion 611, A guide block 610 having semicircular second and third guide grooves 613 and 614 formed to surround the guide blocks 613 and 614 and a cylinder 620 connected to the guide blocks to transfer the guide blocks back and forth.

That is, the third transfer unit 600 moves the guide block 610 by the linear motion of the cylinder 620, and the guide block 610 moves the stem guide 610, which is press-fitted and assembled in the groove 210 of the jig base 10 are pushed into the first guide grooves 612 and transferred to the discharge passage 700 provided in front of the grooves 210 and at the same time the second guide grooves 613 and the third guide grooves 614 are automatically The first member 11 and the second member 12 which are supplied and are waiting are transported to the front of the first transport unit 300 and forward of the second transport unit 400 and wait.

Here, the parts feeder is a vibration transfer device used to automatically align and supply parts in a production automation facility. The parts feeder is equipped with a main body for loading a large number of parts, and a spiral-shaped part discharge path from the inside of the main body to the outside A large number of parts mounted on the inside of the main body are automatically aligned and discharged after moving along the discharge path, so that the discharge path is extended to the part feeder discharge part, The internal parts can be automatically aligned and automatically transported to the desired point.

That is, the discharge passage of the first part feeder 110 extends to the front of the second guide groove 613 of the third conveying unit, and the discharge passage of the second part feeder 120 extends to the front of the third guide groove 613 of the third conveying unit. The first member 11 and the second member 12 are automatically supplied to the front of the second guide groove 613 and the third guide groove 614 in order and the third member 11 The first and second members 11 and 12 positioned in front of the second and third guide grooves 613 and 614 of the guide block when the guide block 610 is moved to transport the first and second transfer units 300 and 2 And waits for preparation in front of the transfer unit 400.

The first transfer unit 300 and the second transfer unit 400 push the first member 11 or the second member 12 waiting in the forward direction and place them in the groove 210 of the jig base .

A sensor unit (not shown) detects the height of the stem guide 10 by sensing the height of the stem guide 10 to be discharged into the discharge channel 700 provided in the front of the groove 210 in the upper surface of the jig base 200 And a fourth transfer unit 720 for separating the stem guide determined to be defective when a signal is received from the sensor unit.

The sensor unit 710 includes a light emitting unit 711 and a light receiving unit 712 for transmitting and receiving optical signals to the upper side of the stem guide 10 passing through the discharge passage 700. The first member 11, If the height of the stem guide 10 is detected, it is determined that the stem guide 10 is defective.

The fourth transfer unit 720 includes a guide block 721 in which a groove having a semicircular shape is formed on the front surface thereof and a cylinder 722 for transferring the guide block. 700, respectively. That is, when the fourth transfer unit 720 receives a signal from the sensor unit 710, the fourth transfer unit 720 moves the guide block 721 by linear movement of the cylinder 722, and the guide block 721 moves the stem guide 10 to the other side of the discharge passage 700 to separate them. At this time, a discharging groove 730 through which the separated defective stem guide is discharged is provided on the other side of the discharging passage 700.

The operation of the stem guide assembling device and the assembling method of the stem guide will be described as follows.

Fig. 5 (a) is a front sectional view showing that the first transfer unit places the first member in the groove of the jig base. Fig. 5 (b) 6 (a) is a front sectional view showing a state in which the second transfer unit stacks the second member on the upper portion of the first member located in the groove of the jig base, and FIG. 6 (b) Fig. 7 is a front sectional view showing a state in which the striking unit strikes the flange of the second member and press-fitting the first member and the second member into a state in which the striking unit strikes the flange of the second member . 8 (a) is a front sectional view showing a state in which the stem guide having been press-fit assembled is drawn out to the outside of the groove when the striking unit is lifted and the external force is removed, and Fig. 8 (b) Fig. 9 (a) shows a state in which the third conveying unit pushes the stem guide in which the press-fitting assembly has been completed, and discharges the stem guide into the discharge passage, 9B shows a state of a plane in order to facilitate the understanding of FIG. 9A, and FIG. 10B shows a state of a plane in FIG. Is a plan view enlarged to explain a fourth conveying unit which is provided in a discharge passage to separate a sensor part for selecting a defect of the stem guide from a defective stem guide.

4, the first member 11 that is automatically fed from the first part feeder 110 and the second member 12 that is automatically fed from the second part feeder 120 are fed to the third feed unit 110, The second guide groove 613 and the third guide groove 614 of the second transfer unit 600 and the third transfer unit 600 moves the guide block 610 by linearly moving the cylinder 620, The moving guide block 610 pushes the first member 11 and the second member 12 located in the front and waits in front of the first transfer unit 300 and the second transfer unit 400. step)

5 (a) and 5 (b), the cylinder 320 of the first transfer unit 300 is operated to linearly move the guide block 310 and move the guide block 310, Is pushed into the groove 210 of the jig base in a state of receiving the first member 11 waiting in the front side (step S20)

6 (a) and 6 (b), the cylinder 420 of the second transfer unit 400 is operated to linearly move the guide block 410 and move the guide block 410, Is pushed in a state of receiving the second member (12) waiting in the front to be stacked on the top of the first member (11) located in the jig base groove (210). Since the guide block 410 of the second transfer unit 400 is linearly moved at the upper portion of the first member 11 by the support block 430, (Step S30)

7, the cylinder 520 of the striking unit 500 is operated to lower the striking rod 510, and the striking rod 510 to be lowered is moved to the second position on the first member 11, Is inserted into the groove (210) of the jig base while striking the flange portion (12a) of the member (12). At this time, the second member 12 is received in the inside of the striking rod 510 striking the flange portion 12a, and at the same time, is pressed into the stepped outer side of the first member 11. The first member 11, Is inserted into the groove along with the descent of the support pin (230) and is inserted into the inside of the second member (12) while being inserted into the support pin (220). The elastic member 240 is compressed by the external force exerted by the impact rod 510.

The inner diameter of the first member 11 can be contracted by the second member 12 which is pressed outwardly while the first member 11 and the second member 12 are being press- The inner diameter of the first member 11 is prevented from being contracted by the support pin 220 supporting the inner wall of the first member 11, And the outer diameter of the second member 12 is prevented from being expanded by the inner wall of the striking rod 510 because the second member 12 is received inside the striking rod 510 .

8 (a) and 8 (b), when the external force is removed while the striking rod 510 is lifted, the slider 230 is lifted and lowered by the restoring force of the compressed elastic member 240, The stem guide 10 having been completed by press-fitting of the first member and the second member is drawn out of the groove 210 (step S40). At this time, the guide block of the first transfer unit and the guide The block returns to the pre-transfer position.

9 (a) and 9 (b), the cylinder 620 of the third transfer unit 600 is operated to linearly move the guide block 610 and move the guide block 610, The stem guide 10 drawn out of the groove 210 of the jig base is pushed by the first guide groove 612 and transferred to the discharge channel 700 provided in front of the groove 210. In this step S50, The first member 11 and the second member 12 which are automatically supplied to the front of the second guide groove 613 and the third guide groove 614 and are in the standby state are guided by the second guide groove 613 of the guide block, 3 guiding groove 614 so as to be positioned in front of the first transfer unit 300 and in front of the second transfer unit 400.

10, the sensor unit 710 of the discharge passage 700 senses the height of the stem guide 10 passing through the discharge passage 700 and detects the stem guide 10, which is judged to be defective, The fourth transfer unit 720 receives a signal from the sensor unit and operates the cylinder 722 to push the stem guide 10 judged to be defective, 730).

Then, the stem guide 10 of the stationary product passing through the discharge passage 700 is packed in the product box through the guider 740.

As described above, according to the present invention, a first member made of a sintered material having excellent wear resistance and a second member made of a stainless steel having excellent rigidity are press-fitted by an automatic method to increase the stability of the engagement, Thereby improving the quality of the guide and enabling mass production of the product.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims, And equivalents may be resorted to as falling within the scope of the invention.

10: stem guide 11: first member
11a: step 12: second member
12a: flange portion 100: pedestal
110, 120: first and second parts feeder 200: jig base
210: groove 220: support pin
230: slider 240: elastic member
300: first transfer unit 310: guide block
320: cylinder 400: second conveying unit
410: guide block 420: cylinder
430: support block 500: striking unit
510: striking rod 520: cylinder
530: Plate 540: Support
600: Third transfer unit 610: Guide block
611: protrusion 612: first guide groove
613: second guide groove 614: third guide groove
620: cylinder 700: discharge flow path
710: Sensor part 711:
712: Light receiving unit 720: Fourth conveying unit
721: guide block 722: cylinder
730: discharge groove 740: guider

Claims (14)

A jig base having a groove formed at the center thereof for press-fitting assembly;
A first conveying unit provided at one side of the jig base for conveying a first member waiting in the front and positioning the first member in the groove of the jig base;
A second conveying unit provided on the other side of the jig base for conveying a second member waiting in front of the jig base and stacking the second member on the first member located in the groove of the jig base;
And a striking bar provided on the jig base and disposed on a line perpendicular to the groove of the jig base to strike a flange portion of the second member stacked on the first member to press-fit the first member and the second member, unit; And
A stem guide provided at a rear side of the jig base to push and discharge the completed stem guide of the first member and the second member and to transfer the first member and the second member supplied from both sides, And a third conveying unit for waiting in front of the second conveying unit;
Wherein the stem guide assembly comprises: The method according to claim 1,
A support pin inserted in a first member located in a groove in the groove of the jig base; a slider provided outside the support pin to support the first member; and an elastic member elastically supporting the slider Wherein the stem guide assembly comprises: 3. The method of claim 2,
Wherein the support pin is provided as a cylindrical body supporting the inner wall of the first member so that the inner diameter of the first member is not contracted by press-fitting of the second member when the striking rod hits the flange portion of the second member. Assembly device. The method according to claim 1,
Wherein the first transfer unit includes a guide block having a shape in which the upper and lower surfaces of the guide block are pierced so that one side of the first transfer unit is pushed in a state of receiving the first member waiting in the front and guided to the groove of the jig base, And a cylinder for forward and backward movement of the block. The method according to claim 1,
The second conveying unit includes a guide block having a shape in which the upper and lower surfaces of the guide block are pierced so that one side of the second conveying unit is pushed in a state of receiving a second member waiting in front of the jig base and guided to the groove of the jig base, And a support block for supporting the guide block such that the second member guided by the groove of the jig base is placed on the first member to increase the conveyance height of the guide block, Wherein the support block has a height equal to a height of the first member positioned in the groove of the jig base. The method according to claim 1,
Wherein the striking unit includes a cylinder for raising and lowering the striking bar and an upper plate coupled to an upper end of a vertically standing support for fixing the cylinder,
The striking bar is provided with a hollow circular bar for receiving a second member other than the flange portion so as to strike only the flange portion of the second member and prevent the outer diameter of the second member from expanding when the second member is press- Wherein the stem guide assembly comprises: The method according to claim 1,
The third conveying unit includes a first guide groove formed on the entire surface of the protruding portion of the center so as to push out the assembled stem guide first and a second guide groove formed on the first guide groove to press the first guide groove and the second member, A guide block having second and third guide grooves formed on the front side of the transfer unit and the second transfer unit so as to be placed in a waiting state; and a cylinder for transferring the guide block before and after the guide block. 8. The method of claim 7,
A first part feeder for automatically feeding the first member to the front side of the second guide groove of the third conveyance unit is provided at one side of the third conveyance unit and the second member is conveyed to the third conveyance unit at the other side of the third conveyance unit, And a second part feeder for automatically feeding the first part feeder in front of the third guide groove of the unit. The method according to claim 1,
Wherein a discharge passage is formed in the upper surface of the jig base to guide discharge of a stem guide which the third transfer unit pushes and discharges. 10. The method of claim 9,
And a fourth conveying unit for separating the stem guide, which is judged to be defective by receiving a signal from the sensor unit, to separate the stem guide from the stem guide, Stem guide assembly device. 11. The method of claim 10,
The fourth transfer unit includes a cylinder installed in a direction perpendicular to the discharge passage on one side of the discharge passage and a guide block for pushing a stem guide judged to be defective by the linear movement of the cylinder to discharge the same to the other side of the discharge passage Wherein the stem guide assembly comprises: delete delete delete

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