KR102032119B1 - Spinlde units feeding and fixing apparatus - Google Patents

Abstract

The present invention relates to a spindle automatic supply and fastening device for a spindle unit, the spindle supply unit 100 for automatically supplying the spindle, and the transfer loader unit for transferring the spindle supplied by the spindle supply unit 100 to the next process 150, a spindle fastening part 200 for automatically fastening the spindle conveyed by the transfer loader part 150 to the nuts, wherein the spindle supply part 100 is a spindle 101 with a finger part 111. Pick-up) includes a conveying portion 110 to be seated on the jig 141 of the rotating plate 140, the spindle fastening portion 200 is seated on the jig 141 of the rotating plate 140 by the conveying portion (110). And a pre-fastener for pre-fastening the nut to the spindle 101, and a fastener for fastening the nut pre-fastened to the spindle with a predetermined torque, thereby automatically supplying the spindle from the cassette by a finger device. By assembling the spindle by screwing with a constant tightening force, the quality of the emergency braking brake device that is subsequently assembled can be maintained constantly, and the assembly productivity of the spindle unit is improved, and the jig in which the head of the supplied spindle is seated is smooth. The oil is placed on the head so that it can be seated and detached so that it is not engaged with the jig.The spindle is first pre-fastened with the nut and then tightened with a predetermined tightening force to smoothly screw the spindle and the nut and It is effective in preventing jams caused by misalignment.

Description

Spindle automatic feeding and fastening device for spindle unit {SPINLDE UNITS FEEDING AND FIXING APPARATUS}

The present invention relates to a spindle automatic feeding device for a spindle unit, which is improved to assemble the spindle unit by automatically supplying the spindle for assembling the spindle unit for use in the emergency braking system of the vehicle and fastening the spindle unit at a constant fastening position and tightening force.

An emergency braking brake of a vehicle includes a spindle unit for retracting a piston for pressurizing a pair of pad plates arranged to pressurize both sides of the disk against a disk rotating with the wheels to perform braking.

The spindle unit is configured by assembling a spindle including a shaft having a screw formed on an outer circumferential surface and a head formed in a disk shape on an upper portion of the shaft.

In the past, the fastening process of the spindle unit was often relying on the manual operation of an operator using an electric screwdriver. However, in recent years, the fastening process of the spindle unit is usually performed by an automated production facility according to the development of automation technology.

In order to improve productivity by such automated equipment, in the assembly process of screwing bolts such as spindles to the spindle, an automatic component feeder called a feeder continuously supplies a fastening spindle for fastening the spindle. After mounting in the bolt fastening hole, the bolt is fastened by the bolt fastener to complete the assembly.

As an example of the automatic fastening and assembling device of the bolt and the spindle, Korean Patent No. 10-1380918 (registered date March 27, 2014), the base frame; A cassette tube for supply bolt receiving, which is supported by the base frame in a floating state, is formed in a straight pipe structure for stacking a plurality of unit bolts in a row, and freely falling therein, and having an open window on the sidewall; The open window is formed in the setting section of the unit bolt immediately above the unit bolt aligned at the bottom; A guide finger provided in the base frame to be driven to interfere with the upright unit bolt received in the cassette tube through the open window; A gripper provided on the base frame to grip the lowermost unit bolt that is aligned to be exposed to the end of the cassette tube in a detachable state; And an actuator provided in the base frame to drive the guide finger and the gripper in association with each other.

In the above-described conventional technology, the unit bolts gripped by the gripper are free-falling so that the bolts are fastened to the bolt fastening holes of the assembly parts positioned directly below, that is, the spindle parts are supplied so that the supply is completed. It is not considered at all.

As another example, Korean Utility Model Publication No. 1995-0010570 (December 21, 1995) presses the turntable to the rotating shaft of the base in two stages, replacing the guide rail on the upper part and the spring on the lower part. A plurality of downwardly lifted lift spindles are inserted into the rotor so that they can be rotated by a pulley, and the lift spindles are gradually raised from the spindle supply position (A) to the bolt supply position (B) by the inclined rail. Disclosed is an automatic bolt spindle assembly, characterized in that the spindle can be automatically assembled to the bolt while rotating.

However, in the spindle unit supplied to the emergency braking brake of the vehicle, when the nuts supplied to the supplied spindle are screwed with a non-constant tightening force, the vehicle assembled using the spindle unit with the spindles assembled thereon. The emergency braking brake of the brake system is not uniformly exhibited, so there is a problem in the quality control of the emergency braking brake system, and due to the difference in the screw coupling force of the spindle unit and the nut of the spindle unit The need for precise adjustment has caused a problem that the productivity of the brake device is reduced.

Korea Patent Registration No. 10-1380918 (Registration Date March 27, 2014) Korea Utility Model Registration No. 1995-0010570 (Notice date 21 December 1995)

An object of the present invention is to constantly supply the spindle with respect to the spindle supplied to automatically assemble the spindle unit to solve the problems according to the prior art as well as to ensure the quality of the spindle unit to be assembled by screwing with a constant fastening force It is to provide an automatic spindle feeding and fastening device for a spindle unit that can be improved.

In order to achieve the above object, the spindle automatic supply and fastening device for a spindle unit according to the present invention, the spindle supply for automatically supplying the spindle, and the transfer loader for conveying the spindle supplied by the spindle supply to the next process And a spindle fastener for automatically fastening the spindle conveyed by the transfer loader to nuts.

The spindle supply part includes a transfer part for picking up the spindle with a finger part and seating the jig of the rotating plate,

The fastener includes a pre-fastener for pretightening a nut to a spindle seated on a jig of the rotating plate by the transfer loader unit, and a stapler for fastening the nut prefastened to the spindle to a predetermined torque.

The conveying part includes a finger part for picking up the spindle disposed in the cassette of the spindle supply part, a first guide part for moving the finger part in the lateral direction, and a second guide part for moving the first guide part in the longitudinal direction. Can be configured.

In addition, the finger unit includes a plurality of fingertips for picking up the spindle, a finger assembly including a finger operating unit for operating the fingertips in an open state and adjacent to each other, the finger assembly is supported to rotate the finger assembly The bracket may be configured to include a rotary drive unit connected to the output shaft, and an output cylinder connected to the fixed plate fixed to the upper surface of the rotary drive unit 116 to lift and lower the rotary drive unit.

It may further include an oil coating unit having an oil cup so that the spindle head is inserted and the oil is applied before the spindle picked up from the cassette by the finger portion to the jig provided on the rotating plate.

In addition, the transfer loader unit extends from a position above the outer circumferential surface of the rotating plate of the spindle supply unit to a position above the outer circumferential surface of the rotating plate of the fastener, a slider mounted to slide in the transfer guide, and a spindle supply unit mounted to the slider. It may include a finger portion configured to pick up the spindle from the jig disposed on the rotating plate of the seat to be mounted on the jig installed on the rotating plate of the adjacent fastener.

The pre-fastener is a slidable portion that is located directly above the jig disposed on the rotating plate, a forward and reverse rotatable motor connected to the output shaft through a coupling to rotate the bleeding portion, and a slider connected to the bracket for supporting the motor is slidable And a ball screw for driving the slider through a reducer mounted on an output shaft of a forward / reverse rotatable servomotor installed on an upper portion of the support.

In addition, the stopper is a servo motor supported by a servo motor and a servo reducer, a slider slides from a guide mounted on the frame to move up and down by screwing with a ball screw connected to an output shaft of the servo reducer. And a servo sensor mounted on the output shaft of the servo reducer, a torque sensor for detecting the magnitude of the torque transmitted through the torque clutch intermittently transmitting the output, and mounted on the lower end of the rotating shaft connected to the output side of the torque sensor and screwed to the spindle. It may be configured to include a fastener configured to rotate the nut.

Spindle automatic supply and fastening device for the spindle unit according to the present invention, the quality of the emergency braking brake device is subsequently assembled by assembling the spindle by screwing the spindle with a constant fastening force by automatically supplying the spindle from the cassette by the finger device It can be kept constant, there is an effect that the assembly productivity of the spindle unit is improved.

In addition, the head of the spindle to be supplied is placed on the jig in which the head is smoothly seated and detached so that the head is not engaged with the jig by applying oil to the head.The spindle is first pre-fastened with the nut and then fastened with a predetermined clamping force. In addition, there is an effect of smoothing the screwing of the spindle and the nut and preventing the jam caused by the screw being misaligned.

1 is a schematic plan view of the spindle automatic supply and fastening device for the spindle unit of the present invention.
Figure 2 is a schematic perspective view of the finger portion mounted to the supply guide of the automatic spindle feeder of FIG.
FIG. 3 shows an oil application process for the spindle shaft to smoothly screw the spindle with oil by applying oil to the shaft of the spindle supplied by the finger of FIG. 2.
Figure 4 shows the concentricity inspection of the spindle to check the concentricity of the spindle before screwing the spindle with respect to the spindle supplied by the finger portion of Figure 2 to prevent the failure of the assembled spindle unit in advance.
Figure 5 is a front and side view of the pre-fastener to perform the pre-fastening to prevent jamming when screwing with the spindle is placed after the spindle is placed on the jig on the rotary table through the concentricity test in FIG.
Figure 6 is a front and partial side view of a retainer for prefastening the spindle to the spindle in Figure 5 and then fastening the nut to the spindle with constant torque.

Hereinafter, with reference to the accompanying drawings showing an embodiment of the spindle automatic supply and fastening device for the spindle unit according to the present invention will be described in more detail the present invention.

1 to 4, the spindle automatic supply and fastening device for the spindle unit according to the present invention transfers the spindle supply unit 100 for automatically supplying the spindle, and the spindle supplied by the spindle supply unit 100 to the next process Transfer loader 150 for the purpose, and a spindle fastening portion 200 for automatically fastening the spindle conveyed by the transport loader 150 to the nuts.

The spindle supply unit 100 includes a plurality of cassettes 104 in which a plurality of spindles 101 are arranged at predetermined intervals, and a tray 105 supporting the cassettes 104, and the tray 105. ) Is screwed with a screw driven by a motor and configured to elevate the cassette 104 to a height at which the spindles 101 are picked up by a finger portion provided in the conveying portion 110. The spindles 101 are arranged vertically in the cassette 104, ie, the shaft portion 103, which is threaded in the spindle, standing upright.

The transfer unit 110 may include a finger 111 for picking up the spindle 101 disposed on the cassette 104 of the spindle supply 100, and an agent for moving the finger 111 in a horizontal direction. The first guide part 120 and the second guide part 126 for vertically moving the first guide part 120 are included. The first and second guide parts may be configured as LM guides.

The finger portion 111 is engaged with the shaft portion 103 of the spindle 101 and a plurality of fingertips 112 for picking up the spindle 101, the fingertips 112, the state that is open with respect to each other Finger assembly 114 including a finger operating portion 113, for example, an air chuck which is operated by an air pressure in an adjacent state, a bracket on which the finger assembly 114 is supported to rotate the finger assembly 114 ( The air cylinder 118 and the fixed bracket (115) connected to the output shaft is connected to the rotary drive unit 116 connected to the output shaft, the fixed plate 117 fixed to the upper surface of the rotary drive unit 116 to raise and lower the rotary drive unit 116. The lower end is fixed to 117 and the upper end includes two guide rods 119 connected to each other by a connector.

In the illustrated embodiment, two finger assemblies 114 are provided in pairs, but one or more finger assemblies may be provided.

The finger part 111 is fixed to the first guide part 120 by the moving bracket 122, and the moving bracket 122 passes through the guide rods 119 and supports the air cylinder 118. The movable bracket 122 is configured as a movable body installed to move in the longitudinal direction in the first guide portion 125 constituted by the LM guide.

The first guide part 120 moves from the second guide part 126 while the spindle is picked up from the cassette by the finger part 111, and then oil is applied to the spindle head by the oil applying part 130.

The oil coating part 130 is to apply oil to the spindle head so that the spindle head inserted into the groove of the jig can be inserted and discharged smoothly without being engaged before the spindles 101 supplied to the jig installed on the rotating plate are seated. . In the illustrated embodiment, two oil cups 131 are adjacent to each other in the advancing direction to apply oil to the head of the spindle picked up and transported by the two finger assemblies 114 provided on the finger part 111. Side by side are provided on the support member 125.

After the finger tips 112 of the finger part 111 pick up the spindle 101, the first guide part 120 moves in the longitudinal direction of the second guide part 125 and is installed on the moving bracket 122. The finger part 111 is disposed at the same width direction as the oil coating part 130, and then the moving bracket 122 as the moving body moves in the width direction in the first guide part 125 to the finger assembly 114. The spindles 101 picked up are stopped at a position just above the cup member 31 of the oil coating part 130.

Then, the cylinder 127 of the oil coating unit 130 is operated to raise the piston rods 128 and the spindle picked up by the finger assembly 114 into the oil cup 131 of the support member 125 ( 101) is inserted. In this way, the spindle 101 is inserted into the oil cup 131 and oil is applied to the spindle head. Then, the piston rod 128 is lowered and the spindle 101 is separated from the oil cup. The first guide part 111 moves from the second guide part 125 to a position adjacent to the rotating plate 140. At this time, at the position corresponding to the two oil cups 131 in a straight line in the oil coating unit 130, the rotary drive unit 116 of the finger 111 is operated to rotate the bracket 115 to the finger assembly 114 Is placed directly on the two jigs 141 disposed on the rotating plate 140.

Then, as the air cylinder 118 of the finger 111 operates to lower the piston rod, the finger assemblies 114 together with the rotary drive unit 116 are directly above the jigs 141 disposed on the rotating plate 140. As the spindle 101 is lowered and inserted into the jig 141, the fingertips 112 are opened by the finger operating part 113 configured as the air chuck of the finger assembly 114, and the shaft portion 103 of the spindle 101 is opened. ), The spindle is seated on the jig 141 by being released in the engaged state.

On the outer edge of the rotating plate 140, the same number of jig 141 as the finger assembly 114 of the finger portion 111 is disposed adjacent to each other, these pairs of jig are provided spaced at regular intervals from the outer peripheral surface of the rotating plate The rotating plate 140 is sequentially rotated by the interval of the pair of jig 141 according to a preset control program.

Jig 141 mounted in pairs on the rotating plate 140 has a through hole formed in the lateral direction, respectively, and two sensors 145 and 146 disposed toward the jig pairs at positions adjacent to the outside of the rotating plate 140. Are arranged. One sensor 145 of the sensors is composed of a light emitting element, the other sensor 146 is composed of a light receiving element penetrates the jig 141 arranged in pairs of light from the sensor 145. If it is detected by the sensor 146 on the opposite side through the hole, it is determined that the spindle is not seated in the jig, and when the light emitted from the sensor 145 is not detected by the sensor 146 of the light receiving element, It is determined that the spindle is seated in the jig, and generates a signal, and in response to the signal, the rotating plate 140 is rotated by a rotation angle of the interval at which the jig pairs are arranged by the motor, and the spindle is mounted on the next pair of jig 141. To be supplied.

When the pair of jig 141 on which the spindle is seated in the rotating plate 140 reaches the discharge side for fastening with the nut in a subsequent process, the spindle is transferred to the spindle fastening part 200 by the transport loader part 150.

The transfer loader unit 150 extends from a position above the outer circumferential surface of the rotating plate 140 of the spindle supply unit 100 to a position above the outer circumferential surface of the rotating plate 240 of the spindle fastening unit 200 and In addition, the slider 152 is slidably mounted at the transfer guide 151 and is spaced apart by a predetermined interval, so that the spindle is picked up from the jig 141 of the rotary plate 140 of the spindle supply unit 100 by the adjacent spindle fastening unit 200. It includes two fingers 161, 161 'for mounting on the jig 241 installed on the rotating plate 240 of the.

The finger parts 161 and 161 'are the same as the configuration of the finger part 111 of the spindle supply part 100. That is, the finger portion 161 is engaged with the shaft portion 103 of the spindle 101 and the plurality of fingertips 162 for picking up the spindle 101, and the fingertips 162 are separated from each other. A finger assembly 164 including a finger operating portion 163 configured as an air chuck, for example, operated by pneumatically adjacent to each other, and a bracket 165 on which the finger assembly 164 is supported are connected to an output shaft. An air cylinder 168 mounted on the upper surface of the support member 167 to raise and lower the finger assembly 164, and the lower guide is fixed to the fixing bracket 167, the upper guide rods are connected to each other by a connector ( 169). The adjacent finger portion 161 ′ is the same as the configuration of the finger portion 161, but the bracket 165 rotates the driving member 166 to rotate the finger assembly 164. There is a difference in that it is provided on the bottom side of 167. The fingers 161 and 161 'are common brackets 168 so that the two fingers 161 and 161' transfer the spindles to the next process together.

In addition, a concentricity inspection unit 170 for inspecting the concentricity of the head and the flange of the spindle is installed between the rotating plate 140 of the spindle supply unit 100 and the rotating plate 240 of the spindle fastening unit 200 is the finger portion ( 161, 161 ') to perform the concentricity check of the spindle in the process of conveying the spindle to automatically maintain the strict quality of the spindle unit.

The concentricity test unit 170 is a concentricity test table 171 is formed with two seats 172 on which the flange of the spindle conveyed by the finger portion 161 in the state in which the head portion is located in the lower side in the illustrated embodiment, and the A camera 177 disposed on the same centerline as the seat 172 at the lower side of the concentricity inspection table 171 and reflecting the head and the flange of the spindle disposed on the seat 172, by the camera 177 The captured image is analyzed by the control unit not shown in the drawing and compared with the reference value for the concentricity deviation between the preset spindle head and the flange. And the passed spindle is transferred to the subsequent spindle fastening portion 200 for fastening with the nut.

The sheet 172 of the concentricity inspection table 171 is formed of a plate member having a transparent through-hole in the center thereof so that the head of the spindle 101 seated on the sheet 172 is disposed downwardly through the through-hole and flanged. The camera 177 disposed below the plate while the spindle is seated on the sheet is photographed for image collection for determining the concentricity of the head and the flange.

In addition, an annular illuminator 179 is disposed between the concentricity inspection table 171 and the camera 177 for clear photographing.

In addition, two sensors 181 and 182 of light emitting elements and light receiving elements are disposed on both sides of the concentricity test table 171 so that the spindle may be disposed on the sheet 712 of the concentricity test table 171 by signals of the sensors. It is determined whether it is located so that the subsequent processes proceed sequentially.

When the jig 141 of the rotating plate 140 of the spindle supply unit 100 is disposed adjacent to each other, the transfer loader unit 150 is a ping mounted to the slider 152 disposed on the right side of the transfer guide 151 in the drawing. The finger assembly 164 of the rejection 161 is lowered to engage the shaft portion of the spindle with the finger tip 162 and then lifted again, and then the slider 122 moves to the left in the drawing in the feed guide 151, The finger assembly 154 is positioned on the sheet 172 of the concentricity inspection table 171 of the concentricity inspection unit 170.

In this state, the finger assembly 154 is lowered to release the shaft portion of the spindle to which the finger tip 162 is engaged to seat the spindle on the seat 172, and then the slider 152 slides to the right in the drawing. When the finger part 161 moves over the jig on the rotating plate of the supply part 100, the finger assembly 164 ′ of the finger part 161 ′ is positioned directly above the seat 172 of the concentricity test table 171. Then, as described above, the finger assembly 164 of the finger unit 161 is lowered to pick up the spindle seated on the jig disposed on the rotating plate of the supply unit 100, and the finger assembly of the finger unit 161 '( 164 'is also mounted on the seat 172 of the concentricity test table 171 to pick up the spindle after the concentricity test.

Then, while the slider 152 moves to the left in the drawing and the finger assembly 164 of the finger portion 161 rests the spindle to be examined on the concentricity test table, the finger portion 161 ′ is moved to the spindle fastening portion 200. Located on the jig 241 disposed on the rotating plate 240 and then lowered to seat the spindle.

1, 5 and 6, the spindle fastening portion 200 is the spindle is seated on the jig 241 disposed at regular intervals on the rotating plate 240, the shaft portion of the spindle is arranged to be inserted into the hole Pre-fastener 230 for pre-tightening the nut, and the fastener 270 is disposed adjacent to the pre-fastener 230 to fasten the nut pre-fastened to the spindle with a predetermined fastening force.

A fixing plate 244 is disposed at the center of the rotating plate 240, and a sensor which is a light emitting element facing the jig 241 disposed on the outer circumferential surface of the rotating plate 240 at a position adjacent to the outer circumferential surface of the fixing plate 244. 245 are disposed, and sensors 246, which are light receiving elements, are disposed outside the rotating plate 240 at the same height as the sensors 245.

The pre-fastener 230 is provided with two corresponding to the jig 241 is arranged in pairs in the illustrated embodiment, but if the number of the jig of the pair provided different number of pre-fastener To place.

The pre-fastener 230 is connected to the output shaft through the coupling 253 to rotate the biting portion 251 disposed above the jig 241 disposed on the rotary plate 240, the biting portion 251 A support 260 provided with a forward and reverse rotatable motor 252, a slider 258 to which the bracket 257 for supporting the motor is connected, a guide 261 to which the slider 258 is slidably mounted up and down, A forward and reverse rotatable servomotor 261 installed on the support part 260 and a ball screw 265 for driving the slider 258 through the reducer 222 mounted to the output shaft of the servomotor.

As a result, when the jig 241 is disposed between the sensors 245 and 246, light is not detected between the sensors 245 and 246, so that the jig 241 of the rotating plate is housed with respect to the generated signal of the sensors in this case. It is determined by the pre-set program to operate the pre-fixing machine is determined to arrive under the stitching portion 251 of the game.

As described above, when the jig 241 is disposed directly below the biting portion 251 by the rotation of the rotating plate 240, the slider 258 is guided by the servo motor 261. After descending by a predetermined distance from, the engrave portion 251 is rotated by the motor 252 in the screw unwinding direction in the spindle, and then the nut is pre-fastened by rotating in the screwing direction to the spindle. This pre-fastening causes a problem that jam occurs in the spindle 101 and the nut 2 when the nut 2 is fastened when the nut 2 is disposed obliquely when the nut 2 is disposed on the spindle 101. To improve productivity, and prevent jams caused by excessive screwing when jams occur in the stagnation fastener.

As described above, the nut 2 is pre-fastened to the spindle 101 in the pre-fastener 230, and then the nut is fastened to the spindle at a predetermined torque in the adjacent fastener 270.

The fastener 270 is a servomotor 275 mounted on a bracket provided on an upper end of the frame 271, a servo reducer 276 connected to an output shaft of the servomotor, and an output shaft of the servo reducer 276 and a coupling 279. Ball screw 280 connected through the), the slider 281 is screwed with the ball screw 280 and slides in the guide 274 mounted to the frame 271 to move up and down in the screw bit and release direction, A torque clutch 285 mounted on an output shaft of the servomotor 282, the servo reducer 283, and the servo reducer 283 supported by a bracket installed on the slider 281, and the torque clutch 285 intermittently transmitting the output; The output shaft of 285 is connected via a coupling 286 to a torque sensor 287 for detecting the magnitude of the torque transmitted through the torque clutch 285, a coupling connected to the output side of the torque sensor 287 ( 288 to the lower end of the rotation axis 289 The complex includes a fastener (290) to rotate the threaded nut on the spindle.

As a result, the pre-fastened spindle 101 and the nut 2 disposed on the jig 141 of the rotary plate 140 positioned directly below the fastener 290 of the fastener 270 are fixed to a predetermined torque. Tighten.

The congestion process by the congestion machine is performed as follows. When the jig 141 of the rotating plate 140 is disposed directly below the fastener 290, the slider 281 engaged with the ball screw 280 to which the servomotor 275 is operated and rotated is not shown in the drawing. The fastener 290 is engaged with the nut 2 seated on the jig 141 of the rotating plate 140 by descending to the position sensed by the sensor.

Then, the servo motor 282 mounted to the slider 281 is operated to rotate the rotating shaft 289 through the torque clutch 285 and the torque sensor 287 so that the fastener 290 is connected to the nut 2. ) Is screwed to the spindle by rotating the servo motor. When the torque sensed by the torque sensor 287 reaches a preset value, the servo motor 282 stops operation, and then the servo motor mounted on the frame ( 275 is rotated in reverse to rotate the ball screw 280, the slider 281 coupled with the ball screw 280 is slid upwards from the guide 274 mounted on the slider 281 ( Along with 282, fastener 290 is also lifted from the nut and released.

The nut is disposed on the spindle that is automatically supplied from the cassette as described above, and the nut is fastened to the spindle 101 by fastening the nut to the spindle at a predetermined constant torque, so that the nut (on the spindle 101 disposed on the jigs 141 installed on the rotating plate 140). 2) is fastened and the entire assembly process of the spindle unit is automatically performed, so that the quality of the spindle unit can be kept constant, so that the quality is improved, and the quality of the emergency braking device in which the spindle unit is mounted can be kept constant, and the productivity is also increased. Is improved.

In addition, when tightening the nut to the spindle seated on the jig of the rotating plate, if the nut is pre-tightened and the nut is not placed in the correct position, no jam will be generated in the resultant screw. It is possible to prevent productivity degradation due to delay in the assembly process.

The invention can be used to automate the process of supplying the spindle and fastening with the nut for the assembly of the spindle unit used in the emergency braking device of the vehicle.

100: spindle supply 101: spindle
110: transfer unit 111: finger portion
114: finger assembly 116: rotary drive part
120: first guide portion 126: second guide portion
130: oil coating unit 131: oil cup
140: rotating plate 141: jig
145,146 sensor 150: feed loader
151; Feed guide 152: Slider
200: spindle fastening part 230: temporary fastener
270: congestion

Claims (8)

Spindle feed unit 100 for automatically supplying the spindle, a feed loader unit 150 for transferring the spindle supplied by the spindle supply unit 100 to the next process, the spindle transferred by the feed loader unit 150 It includes a spindle spindle fastening portion 200 for automatically fastening to the nuts,
The spindle supply part 100 picks up the spindle 101 with the finger part 111 and transfers it to the jig 141 of the rotating plate 140 and the spindle part by the finger part 111. An oil cup 131 is provided to apply oil to the spindle head before the first guide portion 120 moves from the second guide portion 126 in the picked-up state and then the spindles 101 are seated on the jig installed on the rotating plate. Including the oil applying unit 130,
The spindle fastening unit 200 is a pre-fastening nut for pre-fastening the nut to the spindle 101 seated on the jig 241 of the rotary plate 240 by the transfer loader unit 150, and the nut pre-fastened to the spindle In the spindle automatic supply and fastening device for a spindle unit including a stag locker which is fastened to a predetermined torque,
The finger portion 111 is engaged with the shaft portion 103 of the spindle 101 and a plurality of fingertips 112 for picking up the spindle 101, the fingertips 112, the state that is open with respect to each other Finger assembly 114 including the finger operating portion 113 to operate in the adjacent state, the rotary drive unit 116 is connected to the output shaft bracket (115) on which the finger assembly 114 is supported to rotate the finger assembly 114 The air cylinder 118 has an output shaft connected to the fixed plate 117 fixed to the upper surface of the rotary drive unit 116 to raise and lower the rotary drive unit 116,
Jig 141 mounted in pairs on the rotating plate 140 has a through hole formed in the lateral direction, respectively, and two sensors 145 and 146 disposed toward the jig pairs at positions adjacent to the outside of the rotating plate 140. In response to these signals, the rotating plate 140 is rotated by a predetermined rotation angle by a motor.
Between the rotating plate 140 of the spindle supply unit 100 and the rotating plate 240 of the spindle fastening unit 200, the concentricity test table 171, the two seats 172 on which the flange of the spindle is seated, and the concentricity test table A concentricity inspection unit 170 is installed at the lower side of 171, which includes a camera 177 which is arranged on the same center line as the seat 172 and includes a head and a flange of the spindle disposed on the seat 172. Automatic feeding and fastening device for the spindle unit, characterized in that for checking the concentricity of the head and flange. delete delete delete The method of claim 1,
The transfer loader unit 150 extends from a position above the outer circumferential surface of the rotating plate 140 of the spindle supply unit 100 to a position above the outer circumferential surface of the rotating plate 240 of the spindle fastening unit 200 and The slider 152 is slidably mounted on the transfer guide 151 and the slider 152 is mounted on the slider to pick up the spindle from the jig 141 of the rotating plate 140 of the spindle supply part 100, thereby Spindle automatic supply and fastening device for a spindle unit comprising a finger portion (161, 161 ') to be seated on the jig (241) installed on the rotating plate (240). The method of claim 1,
The pre-fastener 230 is connected to the output shaft through the coupling 253 to rotate the biting portion 251 disposed above the jig 241 disposed on the rotary plate 240, the biting portion 251 A support 260 provided with a forward and reverse rotatable motor 252, a slider 258 to which the bracket 257 for supporting the motor is connected, a guide 261 to which the slider 258 is slidably mounted up and down, A forward and reverse rotatable servomotor 261 installed on the support 260 and a ball screw 265 for driving the slider 258 through a reducer 222 mounted to an output shaft of the servomotor. Automatic feeding and fastening device for spindle units. The method of claim 1,
The fastener 270 may include a servo motor 275 and a servo reducer 276 mounted on a bracket provided on an upper end of the frame 271, a ball screw 280 connected to an output shaft of the servo reducer 276, and the ball screw. A servo 281 and a servo reducer supported by a slider 281 that is slid from the guide 274 mounted to the frame 271 and a bracket installed on the slider 281 so as to be screwed with the 280 to move up and down. 283, a torque clutch 285 mounted to an output shaft of the servo reducer 283 to intermittently transmit the output, a torque sensor 287 to sense the magnitude of the torque transmitted through the torque clutch 285, and the Spindle unit characterized in that it comprises a fastener 290 mounted to the lower end of the rotary shaft 289 via a coupling 288 connected to the output side of the torque sensor 287 to rotate the nut screwed to the spindle Spindle supply and fastener .













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