KR101888371B1

KR101888371B1 - Drill machine for processing steering yoke of vehicle

Info

Publication number: KR101888371B1
Application number: KR1020160028946A
Authority: KR
Inventors: 김민응
Original assignee: 김민응
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2018-08-14
Also published as: KR20170105818A

Abstract

A drilling machine for a steering yoke of a vehicle includes a base frame, a stacking unit, a transferring unit, a drilling unit, a charging unit, and a taking-out unit. The stacking unit is constituted by a first reduction gear which horizontally arranges and joins the working steering yokes with the connecting pieces of the respective working steering yokes being positioned on the base frame and a second reduction gear which is sequentially transported one by one from the first stacking And a second reduction gear for fixing the machining steering yoke. The transfer unit sequentially transfers the processed steering yokes one by one from the first set to the second set. The drill unit is disposed on the upper side of the base frame, and drills the connecting holes of the connecting pieces of the working steering yoke, which are inserted from the second bottom to the lower side, respectively. The input unit inserts the connecting pieces of the working steering yoke mounted on the second enemy tooth into the drill unit, then reverses the connecting pieces in the state of being taken out as the second stack, and inserts them back into the drill unit. The extraction unit extracts the machining steering yoke from the drill unit to the second chuck.

Description

Technical Field [0001] The present invention relates to a drilling machine for a steering yoke of a vehicle,

The present invention relates to a drilling machine, and more particularly to a drilling machine used for machining a steering yoke of a vehicle.

2. Description of the Related Art Generally, a steering apparatus is provided in a driver's seat of a vehicle in order to arbitrarily change the traveling direction of the vehicle. The steering apparatus includes a steering wheel for changing the traveling direction of the vehicle by an operation of a driver, a steering column provided at a lower portion of the steering wheel, a steering column for converting the rotational motion of the steering wheel into a rectilinear motion, And a steering joint assembly for transmitting the rotational force transmitted to the steering column to the gear box.

The steering joint assembly is provided with a steering yoke. The steering yoke comprises a yoke portion, and a shaft portion. The yoke part has two connecting parts arranged on opposite sides and facing each other. The shaft portion is connected to the opposite side of the yoke portion. The connecting pieces of the yoke portion are respectively formed with connecting holes for connecting other joints such as a spider. Thus, the connecting holes are individually machined in the connecting pieces. In order to increase the productivity, it is necessary to automate the processing of the connecting holes.

Registration Utility Model Bulletin No. 20-0172612 (Announced on March 15, 2000)

The object of the present invention is to provide a drilling machine for a steering yoke of a vehicle which can increase the productivity by automating steering yoke machining.

According to another aspect of the present invention, there is provided a drilling machine for steering a steering yoke of a vehicle, the yoke having two connecting pieces connected to each other and a shaft connected to the opposite side of the yoke, And includes a base frame, a stacking unit, a transferring unit, a drilling unit, a loading unit, and a taking-out unit. The stacking unit is constituted by a first reduction gear which horizontally arranges and joins the working steering yokes with the connecting pieces of the respective working steering yokes being positioned on the base frame and a second reduction gear which is sequentially transported one by one from the first stacking And a second reduction gear for fixing the machining steering yoke. The transfer unit sequentially transfers the processed steering yokes one by one from the first set to the second set. The drill unit is disposed on the upper side of the base frame, and drills the connecting holes of the connecting pieces of the working steering yoke, which are inserted from the second bottom to the lower side, respectively. The input unit inserts the connecting pieces of the working steering yoke mounted on the second enemy tooth into the drill unit, then reverses the connecting pieces in the state of being taken out as the second stack, and inserts them back into the drill unit. The extraction unit extracts the machining steering yoke from the drill unit to the second chuck.

According to the present invention, since the steering yoke can be manufactured by automating the operation of machining the connecting holes in the connecting pieces divided into two parts on the yoke portion of the working steering yoke, productivity can be improved.

1 is a front view of a drilling machine for steering yoke of a vehicle according to an embodiment of the present invention.
Fig. 2 is a side view of Fig. 1. Fig.
Figure 3 is a plan view of Figure 1;
Figure 4 is a partial perspective view of Figure 3;
5 to 8 are views for explaining the process of transferring the steering yokes of the vehicle that are placed on the first counterweight to the second counterweight.
FIG. 9 is a view for explaining a process of putting a steering yoke of a vehicle placed in a second enemy tooth into a drill unit and performing drilling.

The present invention will now be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same components, and a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 is a front view of a drilling machine for steering yoke of a vehicle according to an embodiment of the present invention. Fig. 2 is a side view of Fig. 1. Fig. Figure 3 is a plan view of Figure 1; Figure 4 is a partial perspective view of Figure 3;

1 to 4, a drilling machine 100 for a steering yoke of a vehicle includes a yoke portion 11 having two connecting pieces 11a and 11b split on one side and a yoke portion 11 connected to the opposite side of the yoke portion 11 The connection holes 11c and 11d are formed in the connecting pieces 11a and 11b of the working steering yoke 10 having the shaft portion 12 so that the base frame 110 and the mounting units 120, a transfer unit 130, a drill unit 140, an input unit 150, and a takeout unit 160. [ Here, pilot holes may be formed in the connecting pieces 11a and 11b before the connecting holes 11c and 11d are machined. The shaft portion 12 may be provided with a hollow and a serration 12a formed on the inner circumferential surface thereof.

The base frame 110 supports the stacking unit 120, the transferring unit 130, the drilling unit 140, the loading unit 150, and the taking-out unit 160.

The stacking unit 120 has a first stacking claw 121, and a second stacking claw 126. The first reducer 121 horizontally arranges the working steering yokes 10 in a state that the connecting pieces 11a and 11b of the respective working steered yokes 10 are positioned on the base frame 110 up and down And the like. For example, the first cantilever 121 includes a fixed base 122, a first front vertical plate 123, and a first rear vertical plate 124.

The first front and rear vertical plates 123 and 124 are spaced apart from each other in the front-rear direction by a predetermined distance in the longitudinal direction of the drill unit 140, 122). The first front vertical seat 123 is formed with first front seating grooves 123a at regular intervals along the longitudinal direction in the upper end thereof. Each of the first front seating grooves 123a seats the shaft portion 12 of the working steering yoke 10.

The first rear vertical plate 124 is formed at the upper end thereof with the first rear seating grooves 124a along the longitudinal direction at the same intervals as the intervals of the first front seating grooves 123a. Each of the first rear seating grooves 124a seats the connecting pieces 11a and 11b of the working steering yoke 10 in a vertically positioned state.

The second counter gear 126 holds the working steering yoke 10, which is sequentially transferred one by one from the first counter gear 121. For example, the second counter gear 126 may include a second front vertical plate 127 and a second rear vertical plate 128. The second front vertical plate 127 is formed at its upper end with a second front seating groove 127a for seating the shaft portion 12 of the working steering yoke 10. The second front seating groove 127a is set so that the distance from the nearest first front seating groove 123a is equal to the distance between the first front seating grooves 123a. The second front vertical plate 127 may be integrated with the first front vertical plate 123.

The second rear vertical plate 128 is located forward of the first rear vertical plate 124 and is connected to the upper surface of the rack base 122. The second rear vertical plate 128 is formed at its upper end with a second rear seating groove 128a for seating the shaft portion 12 of the working steering yoke 10. The second rear seating groove 128a is set so that the distance from the closest first rear seating groove 124a is equal to the interval between the first rear seating grooves 124a.

On the other hand, the collection box 170 can be disposed on the opposite side of the first end tooth 121 with the second enemy tooth 126 therebetween. In this case, the front shooter portion 129a may be extended from the second front vertical plate 127 to a collection box side downwardly inclined. The rear shooter portion 129b may be extended from the first rear vertical plate 124 toward the collection box 170 in a downward inclined manner. Here, the first rear vertical plate 124 has an entrance 124b through which the connecting pieces 11a, 11b of the working steering yoke 10 can enter and exit.

An alignment unit 180 may be provided behind the second rear vertical plate 128. The alignment unit 180 includes an alignment member 181, and an alignment lift mechanism 182. The aligning member 181 is moved up and down by the aligning elevation driving mechanism 182 in a state of being arranged next to the first rear vertical plate 124. The alignment member 181 is provided with an alignment groove 181a for inserting the connecting pieces 11a and 11b of the working steering yoke 10 in the upper and lower positions.

The aligning member 181 ascends from the lower side of the connecting pieces 11a and 11b of the working steering yoke 10 mounted on the second counter gear 126 and connects the connecting pieces 11a and 11b to the aligning groove 181a . At this time, the connecting pieces 11a and 11b can be vertically aligned by the alignment groove 181a. Therefore, the machining steering yoke 10 can be inserted into the drill unit 140 by vertically aligning the connecting pieces 11a and 11b in a state where the machining steering yoke 10 is placed on the second enemy tooth 126. [ The aligning elevation drive mechanism 182 may be an air cylinder, a linear motor, or the like.

A front cover 122a is disposed in front of the first front vertical plate 123 and is connected to the rack base 122. A rear cover 122b is disposed behind the first rear vertical plate 124, 122, respectively. The front and rear covers 122a and 122b prevent the deviation of the working steering yokes 10 when the working steered yokes 10 mounted on the first abutment teeth 121 are transported. The rear cover 122b has an input port for inputting the working steering yoke 10, which is placed on the second reduction gear 126, into the drill unit 140. [ The front cover 122a has a hole through which the rotating shaft 151 of the charging unit 150, which will be described later, is passed.

The transfer unit 130 sequentially transfers the working steering yokes 10 from the first abutment 121 to the second abutment 126 one by one. For example, the transfer unit 130 may include a transfer member 131, and a transfer drive mechanism 136. The conveying member 131 has a pair of conveying vertical plates 133 connected to the upper surface of the conveying base 132 at intervals in the longitudinal direction. The transfer base 132 is disposed below the lower base 122.

The forward conveying vertical plate 133 is arranged behind the first and second front vertical plates 123 and 127 through the rack base 122. The rear transfer vertical plate 133 is disposed forward of the first rear vertical plate 124 and rearward of the second rear vertical plate 128 through the lower base 122.

The transfer vertical plates 133 are formed with transfer grooves 133a at their upper ends. The feed groove 133a is formed in a size that allows the shaft portion 12 of the working steering yoke 10 to be inserted. The portion of the transfer groove 133a which is closest to the rear shooter portion 129b to the rear shooter portion 129b is cut off so that the machining steering yoke 10 can be easily moved to the pick- To be discharged.

The transfer grooves 133a of the forward transfer vertical plate 133 are formed at the same intervals as the intervals of the first and second front seating grooves 123a and 127a. The feed grooves 133a of the rearward conveying vertical plate 133 are formed at the same interval as the intervals of the first and second rear seating grooves 124a and 128a. The conveyance grooves 133a of the conveyance vertical plate 133 are positioned at a position lower than the first and second front and rear seating grooves 123a, 124a, 127a and 128a, And is disposed so as to correspond to each of the shaft portions 12 of the working steering yokes 10 mounted on the two cantilevers 121 and 126.

The conveying drive mechanism 136 elevates and retracts the conveying member 131 horizontally. The conveying drive mechanism 136 may include an elevation driving actuator 137 for elevating and lowering the conveying member 131 and a horizontal driving actuator 138 for horizontally reciprocating the conveying member 131. The lift actuator 137 and the horizontal drive actuator 138 may be air cylinders, linear motors, or the like.

The transfer unit 130 operates as follows. The transfer vertical plates 133 wait at a lower position than the first and second front and rear seating grooves 123a, 124a, 127a and 128a. In this state, the conveying vertical plates 133 are raised by the conveying drive mechanism 136 to simultaneously insert the working steered yokes 10 of the first energizing teeth 121 into the conveying grooves 133a, Up. Subsequently, the conveying vertical plates 133 are horizontally moved toward the second counter gear 126 by the conveying drive mechanism 136, then descend, and the first to-be- To the second counter gear 126. In this process, the subsequent machining steering yokes 10 are transferred one pitch at a time, and are then restored to the first reduction gear 121. Subsequently, the transfer vertical plates 133 return to their original positions by the transfer drive mechanism 136. [

On the other hand, when the machined steering yoke 10 is mounted on the second counter gear 126, the finished steering yoke 10 is machined by the conveying vertical plates 133, The steering yokes 10 are lifted by the transporting vertical plates 133 in the process of being transported and then transported to the front and rear shooters 122a and 122b and discharged to the collection box 170. [

The drill unit 140 is disposed on the upper side of the base frame 110 and is provided with connecting holes 11c and 11d on the connecting pieces 11a and 11b of the working steering yoke 10, 11d are drilled. For example, the drill unit 140 includes a drill blade 141, a drill blade rotation driving mechanism 142 for rotating the drill blade 141, And a drill blade raising and lowering driving mechanism 143 for raising and lowering the drill bit as the mechanism 142 is moved up and down.

The drill unit 140 may be configured to form bushings around the connection holes 11c and 11d by machining the connection holes 11c and 11d by thermal drilling. Friction drilling is a method of forming a hole in a metal using a friction generated by a high rotational force and a normal force of the drill bit 141, and forming a bushing around the hole. Thermal drilling is also known as friction drilling, flow drilling, and form drilling.

The drill bit rotation driving mechanism 142 includes a chuck 142a for fixing the drill bit, a drive shaft 142b coupled to the upper end of the chuck 142a, and a casing 142c for rotating the drive shaft 142b, and a rotation motor 142d for rotating the drive shaft 142b. In the casing 142c, bearings for supporting the rotation of the drive shaft 142b may be installed.

The rotation motor 142d can rotate the drive shaft 142b via the power transmitting means. The power transmission means includes a driven pulley 142e coaxially fixed to the drive shaft 142b, a drive pulley 142f coaxially fixed to the rotation shaft of the rotation motor 142d, and a drive pulley 142f and a driven pulley 142e. And a belt 142g for transmitting the rotational force of the drive pulley 142f to the driven pulley 142e. The power transmitting means may be configured to include a gear set.

The drill bit lift driving mechanism 143 may include a vertical support 144, an elevation guide 145, and an air cylinder 146. [ The vertical support 144 is mounted on the base frame 110. The elevation guide 145 guides the vertical movement of the drill bit rotation driving mechanism 142 with respect to the vertical support 144. The lift guide 145 may include sliders 145a, and guide rails 145b.

The sliders 145a are fixed to the casing 142c of the drill bit rotary driving mechanism 142. [ The guide rails 145b are fixed to the vertical support 144 at left and right spaced intervals and are coupled to the sliders 145a. The guide rails 145b guide the lifting and lowering of the drill-blade rotary driving mechanism 142 as guiding the lifting and lowering of the sliders 145a. The air cylinder 146 moves the drill bit rotary driving mechanism 142 up and down. Of course, instead of the air cylinder 146, various linear actuators may be used.

Before the drill bit 141 processes the connection holes 11c and 11d of the connecting pieces 11a and 11b of the working steering yoke 10, the oil mist injector 190 applies oil mist to the drill bit 141 It can be sprayed and lubricated. The oil mist sprayer 190 may include an oil supply source for supplying oil and a nozzle for spraying the oil supplied from the oil supply source.

The input unit 150 puts the connecting pieces 11a and 11b of the working steering yoke 10 mounted on the second counter gear 126 into the drill unit 140 In the taken state, the connecting pieces 11a and 11b are turned upside down and put back into the drilling unit 140. For example, the input unit 150 may include a rotation shaft 151, a shaft rotation drive mechanism 152, and a shaft horizontal drive mechanism 153. [

The rotary shaft 151 is inserted or separated into the hollow of the shaft portion 12 of the working steering yoke 10 which is placed on the second reduction gear 126. [ The rotating shaft 151 is inserted into the hollow portion of the shaft portion 12 and is rotated with the serrations 151a of the outer circumferential surface engaged with the serrations 12a of the shaft portion 12, .

The shaft rotation driving mechanism 152 inverts the connecting pieces 11a and 11b of the working steering yoke 10 by rotating the rotating shaft 151 inserted into the hollow of the shaft portion by 180 degrees. The shaft rotation drive mechanism 152 may be a rotary air cylinder or a rotary motor.

The shaft horizontal driving mechanism 153 horizontally reciprocates the shaft rotation driving mechanism 152 in the direction parallel to the shaft portion 12 so as to insert or separate the rotating shaft 151 with respect to the hollow of the shaft portion 12. [ The shaft horizontal drive mechanism 153 is configured to move the shaft 11a and 11b of the working steering yoke 10 into the drill unit 140 in a state in which the rotary shaft 151 is inserted into the hollow of the shaft portion 12, The rotary drive mechanism 152 is horizontally moved.

The shaft horizontal drive mechanism 153 may include a horizontal movement guide 154 and a linear actuator 155. The horizontal movement guide 154 may include sliders, and guide rails. The sliders are fixed to the shaft rotation driving mechanism 152. The guide rails are fixed on the base frame 10 at intervals in the forward and backward directions and are coupled to the sliders. The guide rails can guide the horizontal movement of the shaft rotation drive mechanism 152 by guiding the horizontal movement of the sliders. As a result, the horizontal movement of the rotating shaft 151 can be guided.

The linear actuator 155 may be an air cylinder, a linear motor, or the like. The linear actuator 155 may insert or separate the rotary shaft 151 relative to the hollow portion of the shaft portion 12 by adjusting the moving distance of the rotary shaft 151 or may move the connecting pieces 11a and 11b to the drill unit 140 ). &Lt; / RTI >

The extraction unit 160 extracts the processing steering yoke 10 from the drill unit 140 to the second enemy tooth 126. [ For example, the takeout unit 160 may include a takeout pin 161 and a takeout pin horizontal drive mechanism 162. The extraction pin 161 is arranged in parallel with the shaft portion 12 of the working steering yoke 10 in a state corresponding to the yoke portion 11 of the working steering yoke 10 whose tip is placed on the second enemy tooth 126 Direction.

The take-out pin horizontal drive mechanism 162 is configured such that the take-out pin 161 is horizontally reciprocated in the direction parallel to the shaft portion 12 so as to bring the take-out pin 161 into contact with or separate from the yoke portion 11 of the working steering yoke 10 . When the rotary shaft 151 is inserted into the hollow portion of the shaft portion 12, the take-out pin horizontal drive mechanism 162 causes the take-out pin 161 to contact the yoke portion 11 of the working steering yoke 10 . The extraction pin horizontal driving mechanism 162 separates the extraction pin 161 from the yoke portion 11 of the working steering yoke 10 when the rotation shaft 151 is inserted into the hollow portion of the shaft portion 12.

The extraction pin horizontal drive mechanism 162 is configured such that the connection holes 11c and 11d are machined in the connecting pieces 11a and 11b of the working steering yoke 10 and then the connecting pieces 11a and 11b of the working steering yoke 10 are machined, 11b are horizontally moved so as to take out the pick-up pins 161 to the second teeth 126. [ At this time, the shaft horizontal driving mechanism 153 interlocks with the take-out pin horizontal driving mechanism 162 to move the rotating shaft 151 to the second enemy tooth 126 side.

On the other hand, the drill machine can be generally controlled by a controller (not shown). The controller can receive commands from the user through the touch monitor 101, such as setting of machining conditions, on / off setting of the drill machine, and the like.

An example of the operation of the drill machine 100 for steering yoke machining of the vehicle will be described with reference to Figs. 5 to 5 to Fig. 13 as follows.

First, as shown in FIG. 5, the working steering yokes 10 are horizontally arranged and stacked by the operator on the first reduction gear 121. At this time, each of the working steered yokes 10 is set such that the shaft portion 12 is seated in the first front seating groove 123a of the first front vertical plate 123 and the connecting pieces 11a, Is seated in the first rear seating groove (124a) of the straight plate (124) and is vertically aligned.

6, the conveying vertical plates 133 of the conveying unit 130 are moved from a position lower than the first and second front and rear seating grooves 123a, 124a, 127a, And is lifted by the mechanism 136 to simultaneously insert the working steering yokes 10 of the first reduction gear 121 into the feed grooves 133a and lift it. Subsequently, as shown in Fig. 7, the conveying vertical plates 133 are horizontally moved toward the second enemy teeth 126 by the conveying drive mechanism 136. Then, as shown in Fig.

Subsequently, as shown in Fig. 8, the conveying vertical plates 133 are lowered to place the most-used working steered yoke 10 from the first end tooth 121 to the second end tooth 126 while descending. At this time, the connecting pieces 11a and 11b of the working steering yoke 10 are vertically aligned by the aligning unit 180. [ In this process, the subsequent machining steering yokes 10 are transferred one pitch at a time, and are then restored to the first reduction gear 12. Subsequently, the transfer vertical plates 133 return to their original positions by the transfer drive mechanism 136. [

9, the take-out pin 161 is brought into contact with the yoke portion 11 of the working steering yoke 10 of the second enemy tooth 126 by the take-out pin horizontal drive mechanism 162 . 10, the rotating shaft 151 is inserted into the hollow portion of the shaft portion 12 of the working steering yoke 10 by the shaft horizontal driving mechanism 153, and then the take-out pin 161 Is removed from the yoke portion 11 of the working steering yoke 10 by the take-out pin horizontal drive mechanism 162 and returned. 11, the rotating shaft 151 is further moved toward the drill unit 140 by the shaft horizontal driving mechanism 153, so that the connecting pieces 11a and 11b of the working steering yoke 10 ) Into the drill unit 140. Then, the drill unit 140 drills the connecting hole 11c in the upper connecting piece 11a.

12, the takeout pin 161 pushes the yoke portion 11 of the working steering yoke 10 to the second enemy tooth 126 by the take-out pin horizontal drive mechanism 162 After taking out, return. During the take-out operation of the take-out pin 161, the rotating shaft 151 is retracted toward the second counter gear 126 by the shaft horizontal driving mechanism 153. Then, the rotating shaft 151 is rotated 180 degrees by the shaft rotation driving mechanism 152 to vertically invert the connecting pieces 11a, 11b of the working steering yoke 10. [ 13, the rotating shaft 151 is further moved toward the drill unit 140 by the shaft horizontal driving mechanism 153, so that the connecting pieces 11a and 11b of the working steering yoke 10 ) Into the drill unit 140. Subsequently, the drill unit 140 drills the connecting hole 11d to the other connecting piece 11b located on the upper side.

14, the takeout pin 161 pushes the yoke portion 11 of the working steering yoke 10 to the second enemy tooth 126 by the take-out pin horizontal drive mechanism 162 After taking out, return. In the take-out operation of the take-out pin 161, the rotating shaft 151 is retracted toward the second enemy tooth 126 by the shaft horizontal drive mechanism 153. The rotating shaft 151 is then further retracted by the shaft horizontal drive mechanism 153 and separated from the hollow of the shaft portion 12 of the working steering yoke 10. [

5 to 8, the working steered yokes 10 of the first reduction gear 121 are successively transferred to the second reduction gear 126 by the transfer vertical plates 133 The steering yoke 10 having the connection holes 11c and 11d formed in the connecting pieces 11a and 11b has been machined and then moved forward and backward by the conveying vertical plates 133 from the second counter gear 126, May be transferred to the shooter units 129a and 129b and discharged to the collection box 170. [ The connecting holes 11c and 11d are machined on the connecting pieces 11a and 11b of the working steering yokes 1 that are placed on the first cusp 121 and then the harness Lt; RTI ID = 0.0 > 170 < / RTI > As described above, since the steering yoke 10 can be manufactured by automating the operation of machining the connection holes 11c and 11d in the connecting pieces 11a and 11b of the working steering yokes 1, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

10. Machining Steering yoke 11. yoke part
11a, 11b. Connection pieces 11c, 11d. Connection holes
12 .. shaft portion 110 .. base frame
120 .. Rack unit 121 .. First enemy unit
126 .. Second counterweight 130 .. Transfer unit
140 .. Drill unit 141 .. Drill blade
150 .. input unit 160 .. extraction unit
170 .. collection box 180 .. alignment unit
190 .. Oil mist sprayer

Claims

A connecting hole is machined in the connecting pieces of the working steering yoke having the yoke portion having the connecting pieces divided into two on one side and the shaft portion connected to the opposite side of the yoke portion,
A base frame;
A first reduction gear for horizontally arranging and joining the working steering yokes in a state in which the connecting pieces of the respective working steered yokes are vertically positioned on the base frame, A mounting unit having a second counter gear for mounting the steering yoke;
A transfer unit for sequentially transferring the processed steering yokes from the first set to the second set;
A drill unit disposed above the base frame for drilling the connecting holes of the connecting pieces of the working steering yoke to be lowered from the second mounting position;
An input unit for inputting the connecting pieces of the working steering yoke mounted on the second enemy tooth into the drill unit and then turning the connecting pieces upside down while being taken out along the second stack and putting them back into the drill unit; And
And a take-out unit for taking out the working steering yoke from the drill unit to the second mount,
The shaft portion of the working steering yoke has a hollow and a serration is formed on the inner circumferential surface thereof;
The charging unit includes:
The steering shaft is inserted into or separated from the hollow portion of the shaft portion of the working steering yoke mounted on the second reduction gear and inserted into the hollow portion of the shaft portion to be rotated in a state of engagement with the serration of the shaft portion by serration of the outer peripheral surface, A rotating shaft for rotating the yoke;
A shaft rotation driving mechanism for vertically inverting the connecting pieces of the working steering yoke by rotating the rotating shaft inserted in the hollow portion of the shaft by 180 degrees; And
The shaft rotation driving mechanism is horizontally reciprocated in a direction parallel to the shaft portion so as to insert or separate the rotary shaft with respect to the hollow portion of the shaft portion and the connecting pieces of the working steering yoke are inserted into the hollow portion of the shaft portion, And a shaft horizontal drive mechanism for horizontally moving the shaft rotation drive mechanism to be inserted into the drill unit.

The method according to claim 1,
The drill unit includes:
A drill blade rotation driving mechanism for rotating the drill blade; and a drill blade raising and lowering device for raising and lowering the drill blade as the drill blade rotation driving mechanism is moved up and down, And having a mechanism;
The drill blade entry /
A vertical support mounted on the base frame,
An elevation guide for guiding the vertical movement of the drill-blade rotary driving mechanism relative to the vertical support,
And an air cylinder for raising and lowering the drill bit rotation driving mechanism.

delete

The method according to claim 1,
The take-
A take-out pin arranged in a direction parallel to the shaft portion of the working steering yoke in a state corresponding to the yoke portion of the working steering yoke whose tip is set on the second enemy tooth; And
The takeout pin is horizontally reciprocated in a direction parallel to the shaft portion so as to bring the take-out pin into contact with or separate from the yoke portion of the working steering yoke, and the connecting holes of the working steering yoke are machined, A take-out pin horizontal drive mechanism for horizontally moving the take-out pin to take out the connecting pieces as the second stack;
And a drill for machining the steering yoke of the vehicle.