KR100549048B1 - Apparatus and method for assembling stop ring on the input-shaft - Google Patents

Abstract

The present invention relates to an apparatus and method for assembling a stop ring of an input shaft.

The stop ring assembling apparatus of the input shaft according to the present invention, the input shaft 1 is transferred from the transfer robot 11 on the jig 104, the first shaft and the stop ring supply is the input shaft supply position and the stop ring insertion position An input shaft supply unit 100 for reciprocating between the second station in position, a cone operation unit 200 for mounting or detaching the cone 6 from the input shaft 1 transferred to the second station; A stop ring supply unit 300 for mounting the stop ring 10 on the cone 6 and the stop ring 10 mounted on the cone 6 to the stop ring groove 5 of the input shaft 1. It consists of a stop ring insertion unit 400 to slide to insert.

Description

Apparatus and method for assembling the stop shaft of an input shaft {APPARATUS AND METHOD FOR ASSEMBLING STOP RING ON THE INPUT-SHAFT}

1 is a view illustrating a principle of assembling a stop ring using a cone on an input shaft according to the present invention;

Figure 2 is a front view as a whole showing the input shaft stop ring assembly apparatus according to the present invention,

3 is a front view showing an input shaft supply unit according to the present invention;

4 is a side view of FIG. 3;

5 is a plan view of FIG.

Figure 6 is a front view showing a cone operating unit for mounting or detaching the cone on the input shaft according to the invention,

7 is a side view of FIG. 6;

8 is a plan view of FIG.

9 is a front view showing a stop ring supply unit for mounting a stop ring on a cone according to the present invention;

10 is a plan view of FIG. 9;

11 is a side view of FIG. 9;

12 is a front view showing a stop ring insertion unit for inserting the stop ring mounted on the cone according to the present invention by pushing the stop ring to the stop ring groove of the input shaft,

13 is a side view of FIG. 12.

<Description of the symbols for the main parts of the drawings>

1: input shaft 2: land

3: groove 4: o-ring groove

5: Stop ring groove 6: Cone

7: stepped portion 10: stop ring

11: transfer robot 100: input shaft supply unit

101: base 102: cylinder

103: linear guide 104: jig

104a: jig groove 105: jig plate

106: stopper block 107: first proximity sensor

108: second proximity sensor 109: detection unit

110: stopper contact portion 111: attenuation portion

112: third proximity sensor 200: cone operation unit

201: frame 202: linear guide

203: Cylinder 204: Bracket

205: finger cylinder 206: finger

207: Jaw 208: Guide Rail

300: stop ring supply unit 301: frame

302: stop ring supply hole 303: plate

304: Pusher 305: Guide

306: cylinder 307: magazine

308: round bar 400: stop ring insertion unit

401: frame 402: guide rail

403: linear guide 404: bracket

406: pusher 408: stopper

409 cylinder 412 damping part

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stop ring assembly and method for automatically inserting a stop ring into an input shaft of a vehicle steering booster.

In general, a power steering for driving a hydraulic power unit using hydraulic pressure includes an input shaft extending from a steering shaft, a torsion bar inserted into a through hole formed at an axial center of the input shaft, and rotating together, and a part of an outer circumference of the input shaft. It is composed of a valve body and the like coupled to the input shaft so as to fit to the shaft.

The input shaft has eight closed end grooves extending axially separated by lands on the outer diameter portion. The valve body has, in its bore, eight axially closed end slots separated by lands. The slots of the valve body are circumferentially aligned with the land on the input shaft, and the grooves of the input shaft are circumferentially aligned with the land on the bore of the valve body. When the relative rotation of the input shaft and the valve body occurs, the orifice is formed by the grooves and the slots extending along the axial line, and as a result, the hydraulic power moves to generate the back force for steering.

The input shaft is provided with a circumferential groove for coupling the O-ring and a circumferential groove for coupling the stop ring on the outer diameter portion, respectively.

Recently, according to the production line automation trend, the development of equipment for automating the process of inserting the O-ring and the stop ring into the input shaft has been made. The O-ring and stop ring insertion automation equipment of the input shaft is equipped with an O-ring assembly, a stop ring assembly device, an oil coating and inspection device for lubricating the inserted O-ring and checking the insertion state, and an O-ring to prevent the insertion of the O-ring. O-ring crimping device for crimping and a transfer robot device for transporting the input shaft are classified and developed.

Accordingly, the present invention, in particular, in the development of the input ring O-ring and stop ring insertion automation equipment for automatically inserting the O-ring and the stop ring in the input shaft of the vehicle steering power booster according to such a trend, by using a transfer robot device It is an object of the present invention to provide a stop ring assembly and method for automatically inserting a stop ring into an input shaft.

The stop ring assembling apparatus of the input shaft of the present invention for achieving the above object, the input shaft is received from the transfer robot on the jig, the first station is the input shaft supply position and the stop ring insertion position and the first stop ring supply position An input shaft supply unit for reciprocating between two stations, a cone operation unit for attaching or detaching a cone from the input shaft transferred to the second station, and a stop mounted on the cone mounted to the input shaft in the second station A stop ring supply unit for mounting a ring and a stop ring insertion unit installed in the first station and pushing the stop ring mounted on the cone to the stop ring groove of the input shaft.

In addition, the stop ring assembly method of the input shaft for achieving the object of the present invention, the first step of receiving the input shaft from the transfer robot on the jig in the first station of the input shaft supply unit, and the jig second A second step of mounting the cone to the input shaft by a cone operating unit by a cone operating unit, a third step of mounting a stop ring to a stop ring supply unit at the tip of the cone, and transferring the jig to the first station A fourth step of inserting the stop ring mounted on the cone by pushing the stop ring to the stop ring groove of the input shaft with a stop ring insertion unit; and a fifth step of removing the cone by transferring the jig to the second station and the jig. And a sixth step of waiting for the input shaft to which the stop ring is assembled by transferring a to a first station.

Preferably, the input shaft supply unit is fixed to the cylinder provided on the base, the linear guide provided along the longitudinal direction of the cylinder, the jig plate provided on the linear guide so as to reciprocate transfer, and the jig plate And a jig provided with a jig groove in which the input shaft is seated at an upper end thereof, a stopper block for regulating the reciprocating stroke of the jig plate, and a proximity sensor for regulating the reciprocating position of the jig plate.

The cone operation unit includes a guide rail installed in a vertical direction on the frame, a linear guide sliding along the guide rail, a cylinder installed to convey the linear guide in a vertical direction, and one end of the linear guide. A finger cylinder installed through a bracket, a finger whose width is horizontally adjusted by the finger cylinder, and a finger provided on the finger may be configured to grab or loosen the outer periphery of the cone.

In addition, the stop ring supply unit, the plate is installed to protrude in the horizontal direction on the frame and the stop ring supply hole is formed on one side, and vertically installed in a cylindrical shape with a lower end open on the upper portion of the plate in a vertical direction therein. A magazine for loading and supplying the plurality of stop rings, a pusher installed to reciprocate on the plate to push the stop ring supplied to the magazine to the stop ring supply hole, and a reciprocating movement of the pusher. It may be composed of a guide provided along the plate to guide and a cylinder provided at one end to reciprocate the pusher in the horizontal direction.

Further, the stop ring inserting unit may include a guide rail installed vertically on the frame, a linear guide reciprocating vertically along the guide rail, a cylinder installed to convey the linear guide vertically, and It may be composed of a bracket installed at one end of the linear guide, a pusher installed vertically downward in front of the bracket to push the stop ring and a stopper provided at the bottom of the frame to regulate the lowering position of the linear guide. .                         

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, the stop ring means a ring-shaped snap ring having some openings.

1 is a view for explaining the principle of assembling the stop ring using a cone on the input shaft according to the present invention.

The input shaft 1 has eight axially closed grooves 3 extending on the outer diameter portion separated by lands 2, and an O-ring groove 4 in which an O-ring is assembled on the groove 3 is round. It is provided in a columnar shape, and a stop ring groove 5 on which the stop ring 10 is assembled according to the present invention is provided in a columnar shape.

According to the present invention, the cone 6 inserted into the outer diameter portion of the input shaft 1 is used to fit the stop ring 10 into the stop ring groove 5 of the input shaft 1. The outer diameter portion of the input shaft 1 forms a variety of steps along the axis, which is not suitable for inserting the stop ring 10 directly, so it is necessary to cover and flatten it with a cone 6. The upper end of the cone 6 has a conical shape so that the stop ring 10 can be fitted easily. The diameter of the outer diameter portion of the input shaft 1 having the O-ring groove 4 and the stop ring groove 5 is relatively larger than the diameter of the upper portion thereof, and the outer diameter decreases at the upper portion where the stop ring groove 5 is formed. A step 7 is formed, and the cone 6 is fitted such that its lower end reaches the step 7. As a result, the outer diameter of the input shaft 1 in which the stop ring groove 5 is formed and the outer diameter of the cone 6 are almost the same, and the stop ring 10 is pushed down from the cone 6 to the input shaft 1. This is done easily. The cone 6 is removed after the stop ring 10 is assembled in the stop ring groove 5 of the input shaft 1.

Figure 2 is a front view as a whole showing the input shaft stop ring assembly apparatus according to the present invention.

As shown, the present invention is largely transferred to the input shaft (1) parts from the transfer robot 11 on the jig 104, the input shaft supply position, the stop ring insertion position (first station) and the stop ring supply position ( Input shaft supply unit 100 for reciprocating the second station), cone operation unit 200 for mounting or detaching cone 6 from the input shaft 1 transferred to the stop ring supply position, and cone 6 Stop ring insertion unit for pushing the stop ring supply unit 300 for mounting the stop ring 10 and the stop ring 10 mounted on the cone 6 to the stop ring groove 5 of the input shaft 1). It is composed of a unit 400.

3 to 5 show an input shaft supply unit 100 according to the invention, wherein the input shaft 1 component is placed on the jig 104 in the first station position by the transfer robot 11. The jig 104 is conveyed together with the input shaft 1 to a second station, ie a stop ring feed position. The cone 6, which is an auxiliary means for mounting the stop ring 10 at the second station, is mounted, and after receiving the stop ring 10 on the cone 6, the first station, that is, the stop ring insertion position Return to. Reciprocating movement between the first station and the second station of the jig 104 is operated by the cylinder 102 using hydraulic or pneumatic, the cylinder 102 is installed on the base 101. Meanwhile, the jig 104 is fixedly coupled to the jig plate 105. The linear guide 103 is installed at both ends in parallel along the longitudinal direction of the cylinder 102, and the jig plate 105 is slidably coupled to the linear guide 103 and reciprocated by the cylinder 102.

The first proximity sensor 107 and the second proximity sensor 108 are installed on the base 101 in the longitudinal direction of the jig 104 and the jig plate 105. The first proximity sensor 107 is installed in the first station, and the second proximity sensor 108 is installed in the second station. The first proximity sensor 107 is operated by a sensing unit 109 installed at one end of the jig plate 105 to be transferred to the first station, and the second proximity sensor 108 is transferred to the second station. 109). Meanwhile, a third proximity sensor 112 capable of directly detecting the input shaft 1 mounted on the jig 104 at the second station is installed in proximity to the input shaft 1.

On the other hand, a stopper block 106 for regulating the reciprocating stroke of the jig 104 and the jig plate 105 is provided on both sides of the same axis as the cylinder 102, the stopper contact portion 110 of the jig plate 105 Corresponds to the attenuation portion 111 of the stopper block 106. The damping unit 111 is a built-in damping device having a damping function inside the stopper block 106, the stopper contact portion 110 is transferred to the damping unit 111 to exhibit the damping characteristics during the impact contact jig 104 The input shaft 1 mounted above is stably reciprocated.

The input shaft supply unit 100 configured as described above has the jig 104 supplied with the input shaft 1 from the transport robot 11 at the first station position and moved to the second station so that the cone 6 and the stop ring 10 ) Is supplied to the first station and the stop ring is inserted again. The jig 104 is then transferred back to the second station to remove the cone 6 and then to the first station to complete the stop ring assembly process and wait for the subsequent process.

Next, the cone operating unit 200 according to the present invention is a device for operating the cone (6) as an auxiliary tool for assembling the stop ring 10, in the upper portion of the input shaft (1) transferred to the second station Mount or remove the cone (6).

To this end, as shown in FIGS. 6 to 8, the cone operation unit 200 is provided with a guide rail 208 in a vertical direction on a frame 201 standing in a vertical direction, and slides along the guide rail 208. The conveyed linear guide 202 is installed, the cylinder 203 is installed in the vertical direction so that the linear guide 202 can be conveyed in the vertical direction, and one end of the linear guide 202 is provided via the bracket 204. A finger cylinder 205 is installed, and a finger 206 whose width is adjusted in the horizontal direction by the finger cylinder 205 is installed, and at one end of the finger 206 so as to grab the outer periphery of the cone 6. Jaw 207 is installed.

In order to mount the cone 6 to the input shaft 1 at the second station, a pair of jaws 207 are brought into close contact with the outer diameter of the cone 6 while the width of the finger 206 is narrowed by the finger cylinder 205. As a result, the cone 6 is gripped and the cone 6 descends while the linear guide 202 descends along the guide rail 208 by the cylinder 203. The cone 6 is lowered by a predetermined stroke to be fitted to the stepped portion 7 of the input shaft 1, and the jaw 207 is separated from the cone 6 held by the finger cylinder 205. .

On the other hand, when the jig 104 is moved to the second station again after the stop ring insertion process is completed, the jaw 207 that is opened is narrowed again by the finger cylinder 205 and the outer diameter of the cone 6 is gripped. The grip 6 lifts the linear guide 202 by the cylinder 203, and the cone 6 is removed from the input shaft 1.

Next, the stop ring supply unit 300 according to the present invention is a device for mounting the stop ring 10 on the cone 6, as shown in Figs. 9 to 11, the horizontal on the frame 301 A plate 303 having a stop ring supply hole 302 formed therein, and a pusher 304 reciprocating to push the stop ring 10 to the stop ring supply hole 302 on the plate 303. Is installed, the guide 305 is installed along the plate 303 to guide the reciprocating movement of the pusher 304, the cylinder 306 in the horizontal direction to transport the pusher 304 in the horizontal direction Is installed.

The stop ring 10 is supplied from above in front of the pusher 304 with the pusher 304 being retracted toward the cylinder 306. The stop ring 10 is stacked and supplied in the magazine 307 of the cylindrical shape provided at the top and the bottom is opened, the inside of the plurality of round bar 308 is fixed to surround the round bar 308 The stop ring 10 is stacked and stored in the vertical direction. The stop ring 10 supplied from the magazine 307 in front of the pusher 304 is pushed out on the plate 303 to the front side by the sliding transfer of the pusher 304. At this time, the stop ring 10 moves in a straight line by the groove formed by the guide 305 to stably move to the stop ring supply hole 302 and then falls downward by its own weight. The dropped stop ring 10 is fitted to the tip of the cone 6 located immediately below.

12 and 13, the guide ring 402 is installed on the frame 401 in a vertical direction, and the vertical direction along the guide rail 402 is provided in the stop ring insertion unit 400 according to the present invention. The linear guide 403 which reciprocates is provided. A cylinder 409 is installed in the vertical direction to move the linear guide 403 in the vertical direction, a bracket 404 is installed at one end of the linear guide 403, and a stop ring 10 is disposed below the bracket 404. ), A pusher 406 is inserted. The pusher 406 has a cylindrical shape having an inner diameter corresponding to the diameter of the bottom of the cone 6, and the lower end thereof is a portion that substantially pushes the stop ring 10 in contact with the stop ring 10. Therefore, when the bracket 404 descends, the pusher 406 descends along the outer diameter of the cone 6 to push the stop ring 10.

On the other hand, the stopper 408 is installed in the lower portion of the frame 401 so as to regulate the lowering position of the linear guide 403, the damper 412 having a damping function for the shock-absorbing when contacted inside the stopper 408 Is provided.

Hereinafter, the input shaft stop ring assembly process according to the present invention.

According to the present invention, the first step of receiving the input shaft 1 component from the transfer robot 11 on the jig 104 in the first station of the input shaft supply unit 100 and the jig 104 in the second step are provided. A second step of mounting the cone 6 to the input shaft 1 by the cone operating unit 200 by transferring it to the station, and the stop ring 10 by the stop ring supply unit 300 at the tip of the cone 6. And the stop ring 10 of the input shaft 1 to the stop ring inserting unit 400 by moving the stop ring 10 mounted on the cone 6 by transferring the jig 104 to the first station. 4th step of pushing and inserting), the fifth step of removing the cone 6 by transferring the jig 104 to the second station, and the stop ring 10 is assembled by transferring the jig 104 to the first station. The sixth step of waiting for the input shaft (1).

In the first step, the jig 104 is aligned at the first station position by the first proximity sensor 107 and the stopper block 106a, and the input shaft 1 is a jig groove 104a provided on the top of the jig 104. In the vertical direction.

In a second step, the jig 104 is aligned at the second station position by the second proximity sensor 108 and the stopper block 106b to fit the cone 6 on the input shaft 1, and the third proximity sensor. 112 detects the presence and position of the input shaft 1. The cone 6 is lowered in the vertical direction while being grasped by the jaw 207, inserted into the input shaft 1, and then separated from the jaw 207 that was grasped by the finger cylinder 205.

In the third step, the stop ring 10 is supplied in front of the pusher 304 from the upper magazine 307, the pusher 304 is tensioned by the cylinder 306 to stop the stop ring 10 supply hole Pushing to 302, the stop ring 10 is dropped by its own weight through the stop ring supply hole 302 and mounted on the tip of the cone 6 located below it.

In the fourth step, the jig 104 is conveyed to the first station for inserting the stop ring 10 up to the stop ring groove 5 of the input shaft 1. The bracket 404 descends by the cylinder 409 so that the pusher 406 descends along the outer diameter of the cone 6. At this time, the stop ring 10 mounted on the cone 6 is pushed down along the outer diameter of the cone 6 together with the lower end of the pusher 406. As one end of the liner guide 403 contacts the damping part 412 of the stopper 408, the lowering of the pusher 406 is stopped, and the stop ring 10 is inserted into the stop ring groove 5. The pusher 406 returns to the initial state by the rise of the linear guide 403.

In the fifth step, the cone 6 is removed by the cone operating unit 200 by transferring the jig 104 to the second station, and the removal operation of the cone 6 is performed in the reverse order of inserting the cone 6. .

In the sixth step, the stop ring 10 is assembled to the stop ring groove 4 of the input shaft 1 and transferred to the first station to wait for a subsequent process.

In the foregoing description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

According to the present invention, it is possible to automate the stop ring insertion work made manually by the operator to bring down the production manpower and productivity.

Claims (6)

An input shaft supply unit which receives an input shaft from a transfer robot on a jig and reciprocates between a first station that is an input shaft supply position and a stop ring insertion position and a second station that is a stop ring supply position; A cone operating unit for attaching or detaching a cone from the input shaft transferred to the second station; A stop ring supply unit installed at the second station to mount the stop ring on a cone mounted to the input shaft; And A stop ring insertion unit installed in the first station and pushing the stop ring mounted on the cone to the stop ring groove of the input shaft; Stop ring assembly of the input shaft comprising a. The method of claim 1, The input shaft supply unit, A cylinder installed on the base; A linear guide installed along the longitudinal direction of the cylinder; A jig plate installed on the linear guide so as to be reciprocated; A jig having a jig groove fixedly coupled to the jig plate and having an input shaft mounted thereon at an upper end thereof; A stopper block for regulating the reciprocating stroke of the jig plate; And Apparatus for stopping the assembly of the input shaft, characterized in that consisting of; proximity sensor for regulating the reciprocating transfer position of the jig plate. The method of claim 1, The cone operation unit, A guide rail installed vertically on the frame; A linear guide slidingly moved along the guide rail; A cylinder installed to convey the linear guide in a vertical direction; A finger cylinder installed at one end of the linear guide via a bracket; A finger whose width is adjusted in the horizontal direction by the finger cylinder; And A stop ring assembling apparatus of the input shaft, characterized in that consisting of the jaw is provided on the finger to grip or loosen the outer periphery of the cone. The method of claim 1, The stop ring supply unit, A plate installed to protrude horizontally on the frame and having a stop ring supply hole formed at one side thereof; A magazine installed vertically in a cylindrical shape having a lower end open at an upper portion of the plate, and loading and supplying a plurality of the stop rings in a vertical direction therein; A pusher installed to reciprocate on the plate to push the stop ring supplied to the magazine to the stop ring supply hole; A guide installed along the plate to guide the reciprocating movement of the pusher; And Stopper assembling apparatus of the input shaft, characterized in that consisting of; a cylinder provided at one end to reciprocate the pusher in the horizontal direction. The method of claim 1, The stop ring insertion unit, A guide rail installed vertically on the frame; A linear guide reciprocating vertically along the guide rail; A cylinder installed to convey the linear guide in a vertical direction; A bracket installed at one end of the linear guide; A pusher installed vertically downward in front of the bracket to push the stop ring; And Stopper assembly of the input shaft, characterized in that consisting of; a stopper installed in the lower portion of the frame to regulate the falling position of the linear guide. A first step of receiving the input shaft from the transfer robot on a jig at the first station of the input shaft supply unit; A second step of transferring the jig to a second station and mounting a cone on the input shaft by a cone operating unit; A third step of attaching the stop ring to the tip of the cone by a stop ring supply unit; A fourth step of transferring the jig to the first station and inserting the stop ring mounted on the cone by a stop ring insertion unit to the stop ring groove of the input shaft; A fifth step of removing the cone by transferring the jig to a second station; And Transferring the jig to a first station to wait for the input shaft to which the stop ring is assembled; Stop ring assembly method of the input shaft comprising a.

Images