KR100506133B1 - Rotary Transfer machine for tap of steering tie rod end - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary transfer machine for automatically and automatically processing female thread taps and finishing of a steering tie rod end for a vehicle. The first process 100 for discharging and the second process for detecting the processed finished product which is supplied again because the material is short in length before the processing of the material or the finished product is not discharged due to the failure of the first process. Sack length and inner diameter chamfering using a 200, a third process 300 for processing a female thread tapping drill hole using a drill, and a tool 40 for simultaneously performing end chamfering and internal chamfering of the end portion side of the sack portion of the raw material. The fourth step 400 at the same time, the fifth step 500 for chamfering the outer circumference using the tool 50 for processing the outer edge of the material, and the tapping of the third step using the female thread tapping tool 60 De The sixth step (600) of processing the thread in the hole, the step of returning to the first step (100) of discharging the finished product moved to the material supply position and supplying the material, and the iron bar light generated in the processed tapping hole Including the seventh step (700) for blowing off the compressed air, the female thread tap of the steering tie rod end for a vehicle can be mass processed simultaneously.

Description

Rotary transfer machine for tap of steering tie rod end}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary transfer machine for collectively and automatically processing female thread taps and finishing of a steering tie rod end for a vehicle.

Conventionally, certain parts have been machined using CNC machine tools. However, when one part is completed through several stages of processing, machining by CNC machine tool is broken due to continuity of work such as reprogramming and replacement of tools after each process. The time was delayed. In order to compensate for this, several CNC machine tools and transfer lines are separately installed between them, but the initial investment is expensive due to the installation of each expensive transfer line and the increase of installation site. The loss of time occurs and the quality is degraded due to the instability of the connection and structure of the transfer line and each CNC machine tool.

In addition, there is an urgent need to minimize the processing time of parts per unit time due to excessive competition among competitors in mass production of specific general parts. Each process was performed at the same time by combining a machining facility equipped with a spindle and an inline transfer machine or a rotary transfer machine.

However, in machining the tap of the steering tie rod end of the vehicle, the whole machine cannot be processed automatically by the existing machine tool using the transfer machine, and after dividing the process into several process groups, the transfer line is again between the process groups. There is a problem to install or hand over to the subsequent process by the operator, it is difficult to process materials other than a predetermined size has the disadvantage that the compatibility of the material is inferior.

In addition, according to the conventional machining process, i) a step of drilling one end of a raw material using a cemented carbide drill in order to process a hole before female threading, and ii) a step of cutting the end surface of the end portion to a predetermined length; ) The process of chamfering the end part so that the guide part when tapping and the other part guides the assembly well when assembling the product, and iii) Eliminates burrs generated at the outer peripheral edges during the end face processing. It is mainly divided into the process of external chamfering, and (iii) the process of tapping the female thread which processes a thread in the said tapping drill hole. Thus, if possible, the necessity of shortening the above processes in order to reduce the production time of the product has been constantly raised, but special tools have not been developed. In particular, in general, when cutting the cross section of the material, the machined surface and its adjacent edges must be finished as they will injure the person handling the product and further damage the associated equipment. Conventionally, the process of finishing the end surface and round chamfering (hereinafter, referred to as "rounding") of the edge, side or inner surface of the material or each chamfer (hereinafter referred to as "chamfering) Chamfering process, referred to as "processing", was performed in a separate process using a separate tool. As shown in FIG. 13, a process of drilling a central portion of a cylindrical material to form a tubular material, and then cutting or finishing the end surface of the tubular material, and then manufacturing an inner chamfer was performed separately. Therefore, the problem that the entire process is delayed inevitably occurs by performing two operations step by step using each of the tools. In particular, when processing materials using a transfer machine composed of a number of processes due to overheating competition among companies manufacturing and supplying general-purpose parts, it was necessary to integrate several processes into one to maximize the product yield per unit time. Furthermore, there is a need for a tool having an improved structure to avoid interference between materials, tools, and tools that may occur when combining multiple processes into one.

Furthermore, the lead screw pitch of the conventional tapping apparatus is the same as the thread pitch, so that it does not absorb malfunctions that may occur during machining.

An object of the present invention is to overcome the problems of the prior art, to improve the conventional rotary transfer machine to provide a vehicle-only steering tie rod end tap dedicated processing machine for batch processing from the input of material to the processing discharge. . This is due to the urgent necessity of minimizing the machining time of the parts per unit time in mass production due to the excessive competition between competitors in the parts processing delivery.

In addition, another object of the present invention is to provide a machine for exclusive use of a steering tie rod end tap for a vehicle to allow the tap chuck to reach the optimum machining condition even if the tap chuck does not properly find the female thread, and to compensate the fine tolerance.

In addition, another object according to a preferred embodiment of the present invention is to provide a stop auxiliary control device when the rapid stop during rapid movement during rail travel of the tool bar to enable rapid stop without impact to increase the service life of the equipment. . That is, when the tool post first reaches the set position, the piston rod of the driving cylinder provides a flow control device for adjusting the cylinder inflow and outflow by turning a cap-shaped handle attached to the upper portion of the valve.

Furthermore, the present invention aims to solve the above problems, but provides a tool in which two standard tips are disposed to simultaneously process the tubular end surface and the inner chamfer simultaneously, without interference between the tips, and easy to discharge the chip. In addition, the blade plate is placed so that interference with the inner surface of the material or flank wear does not occur, and a standard blade plate is used to cut end sections to a predetermined length. It aims at shortening so that the process to process and the process of internally chamfering the edge part may be performed simultaneously.

The present invention for achieving the above technical problem, in a rotary transfer machine for performing automatic batch processing of the female thread tap and finishing of the steering tie rod end for a vehicle: a predetermined position A rotatable rotary transfer table in which at least one device for fixing the material is installed and the device for each process is disposed to correspond to the outside so that the work for each process can be performed at the position; A material supply device for supplying raw materials at a specific position of one of the material fixing devices on the outer periphery of the rotary transfer table; When the cylinder provided with the piston and the material supplied to the material fixing device together with the rotary transfer table are rotated by an angle to reach the next position circumferentially, the head of the piston is placed on the outer peripheral side of the rotary transfer table. A support member coupled to a cylinder positioned to be inserted into a fixed end of the workpiece, and a detector for detecting a signal that the piston head goes over a predetermined length when the piston head is inserted into the hole of the end of the workpiece And a workpiece detection device including an output device for performing a predetermined operation upon receiving a signal from the detector; A carbide drill assembly for drilling a tap drill hole in one end of the work piece when the rotary transfer table is rotated by an angle so that the work piece fixed to the transfer table reaches a circumferential position following the work piece detection; End tap cutting to simultaneously chamfer one end of the end and the inner diameter of one end of the material when the rotary transfer table is rotated by a certain angle so that the material fixed to the transfer table reaches the circumferential position following the tap drill hole machining. A tool assembly; End peripheral cutting tool assembly for chamfering one end of the hole end side outer diameter side of the material when the rotary transfer table is rotated by a certain angle following the end finishing cutting to reach the circumferential position of the material fixed to the transfer table Wow; A female threading tool assembly for machining female thread taps in one end of the tab drill hole of the material when the rotary transfer table is rotated at an angle such that the end of the end peripheral finish cutting is rotated at an angle such that the material fixed to the transfer table reaches a subsequent circumferential position; ; Following the female thread tapping, the rotary transfer table is rotated by a predetermined angle to return to the initial material feeder position, and includes a material discharging device for discharging the finished finished product. do.

In addition, the output device of the workpiece detection device of the present invention is preferably a device for stopping the rotation of the rotary transfer table when a signal that the piston head enters more than a predetermined length is detected, the piston head It also includes a case characterized in that the device to discharge the material from the material holding device provided in the rotary transfer table when a signal entering a predetermined length or more is detected.

Furthermore, the present invention further includes a chip removing device for removing the cutting chips by blowing air to the internal cutting surface of the steering tie rod end through the tip erected vertically from the air blower when the finished product is discharged from the material discharge device. Preferably, the material supply and discharge device using a robot (robot), when the material is aligned using the robot to operate the robot from the stock-car to supply the material fixing device, In order to be accurately positioned at a specific position of the material fixing device, it is preferable to further include a material position adjusting device for adjusting the fixed position of the material in advance by pressing the material slightly with two plates. In this case, it is usually preferred to use the same robot as the material supply device and the discharge device of the present invention.

In addition, the present invention is characterized in that the rotary transfer table is rotated 360 ° further comprises a lamp that is lit when the signal is returned to the initial position and the control device for continuous operation by the return signal, characterized in that In the present invention, an end finishing cutting tool assembly for simultaneously chamfering a hole end side end face and an inner diameter side edge of one end of a workpiece has an end finish having two blade plates each having at least one cutter fixed to a tool. Cutting tool comprising: a first blade plate having a cutter for processing an end surface of a tubular material; A second blade plate having a cutter for processing an inner chamfer adjacent said end surface; A blade sheet and a cutting chip having a groove formed in the divided cylindrical front end portion to fix the first blade plate and a blade sheet and a chip having a groove formed in the conical shear portion divided to fix the second blade plate And a cylindrical body portion having a chip pocket with a groove formed in the longitudinal direction to receive and discharge the same without difficulty, and a shank protruding from the body portion; When the cutter of the first blade plate processes the end surface of the tubular material, at the same time the blade sheet formed in the divided cylindrical body front end so that the cutter of the second blade plate can process the inner chamfer of the tubular material. The first blade plate is disposed and the second blade plate is disposed on the blade sheet formed at the front end of the divided conical body. In this case, the first blade plate and the second blade plate are the body. Preferably, the second blade plate has a negative inclination angle and a positive side inclination angle so as to avoid interference with the material and evenly contact the cutter along the cross section. It is characterized by.

In the present invention, the carbide drill assembly, the end finishing cutting tool assembly, the end peripheral cutting tool assembly, and the female thread processing tool assembly use an air cylinder as a driving means, and the tool assemblies are operated when the air cylinder is operated. Each of the tool assemblies has a member complementary to the rails installed in the foundation so that each performs only a linear sliding motion, and the piston rod protruding from the cylinder in order to predecelerate its straight velocity before reaching a particular position It characterized in that the air flow is reduced by turning the cam attached to the valve for adjusting the air flow rate of the air cylinder when moving forward, the female threaded tool assembly of the present invention is connected to the drive means and integrally coupled to the spindle shaft and the spindle On one side of the tool post to accommodate Floating using a support member with a lead screw possibly supported and a half nut engaged with the lead screw, and an elastic member inside one end of the spindle opposite the lead screw for pitch correction during threading. a tap chuck supported to float, wherein a tool rest is integrally coupled to the lead screw so that the tool rest engages the rail when the lead screw rotates in engagement with the half nut. It is preferable to move.

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

1 is a layout view for each process on a rotary transfer table according to an exemplary embodiment of the present invention. As shown, the apparatus according to the present invention provides a first process 100 for supplying a material or discharging a finished product, and before processing the material, the material is short in length as a defective product, or the finished product is damaged due to a failure of the first process. A second step (200) of detecting the finished product which is not discharged and supplied again; a third step (300) of machining a female thread tapping drill hole using a drill; The fourth step 400 for simultaneously carrying out the bag length and the inner diameter chamfering using the tool 40 simultaneously for furring, and the fifth step 500 for circumferentially chamfering using the tool 50 for processing the outer edge of the material; And a sixth step 600 of machining a thread in the tapping drill hole of the third step using the female thread tapping tool 60, and a first step of discharging the finished product moved to the material supply position and supplying the material ( Return to 100) And the resulting iron visible such as the tapping hole machining includes a seventh step 700, which removed by blowing with compressed air. The material supplied to the first process 100 using a robot or the like is bitten by a material fixing device (see FIG. 4), and the material fixing device is coupled to the rotary transfer table 10, and the rotary transfer table Numeral 10 rotates at a predetermined angle by the process interval by any drive means. When the input material is bitten by the material processing device in the first process 100 and rotates by the position of the second process 200 together with the rotary transfer table 10, the material detection device for processing checks the goodness of the input material and causes a problem. Only if there is no, the rotary transfer table 10 is rotated to the third process. The fourth step 400 and the outer periphery of the rotary transfer table 10 are continuously rotated through the third step 300 of machining the tap drill hole, and the workpiece and the inner chamfering process are continued at the same time. The tapping machining step of the sixth step 600, which is the core of the machining, is performed after the fifth step 500 of chamfering. After the sixth process, the rotary transfer table 10 is rotated to the initial material input position, and the material fixing device releases the product and moves to the seventh process 700 using a robot or the like, and uses a robot or the like. By inserting it into the machined tap hole at the end of the thin rod-shaped tip through which compressed air is ejected, it is pulled out again to remove the metal wire remaining in the tap hole.

Figure 2 is a partial perspective view showing a robot to pick up the material aligned in the stoka according to an embodiment of the present invention and put it in a predetermined position, and furthermore, in the case of inputting the material using the robot as an embodiment of the present invention , Shows a state of preparing the material to align using the shelf (30). The shelf 31 on which the material 5 is placed is formed with a groove 32 so that the bag portion of the material 5 can be placed, and the material 5 can be fixed to the shelf 30. A protrusion 33 is provided for insertion into the link through hole in the head. According to this embodiment, the robot 20 picks up the material 5 placed side by side in the groove 32 of the shelf 31 and moves it to the material supply device.

3 is a partial perspective view showing a material position adjusting device for adjusting the material to be placed in a predetermined direction before picking up the material using the robot of FIG.

In the present invention, when the robot 20 picks up the bag portion 6 of the material 5, the head portion 7 of the material 5 is not always parallel to the horizontal plane so that the work position adjusting device to solve this problem Provide 140. The material positioning device 140 includes an upper tong plate 141 and a lower tong plate 142 spaced in parallel therewith, and a body 143 containing a pneumatic cylinder for operating the two tong plates 141 and 142 up and down. Included. As soon as the robot slightly places the material 5 between the two forceps 141 and 142, the two forceps 141 and 142 move toward each other to position the material 5. Thus, the head 7 of the material 5 is always parallel to the horizontal plane.

4 is a partial perspective view of a material fixing device installed in the rotary transfer table of FIG. 1. The material fixing device 150 is installed at each position of each process on the rotary transfer table 10, thereby enabling continuous processing of the material during the rotation of the rotary transfer table 10. The material fixing device 150 fixes the material 5 by lowering the support neck 151 and the piston rod 155 on which the material 5 having the recessed groove 152 for securing the processing space of the material 5 is placed. The upper plate 157 for fixing the hydraulic cylinder 154 and the hydraulic cylinder 154 and the lower plate 159 for fixing the support 151 is fixed, and the support plate for supporting the upper plate 157 and the lower plate 159, respectively. (156,158). When the robot 20 places the material 5 on the upper surface 153 of the support 151 of the material fixing device 150, the piston rod 155 of the hydraulic cylinder 154 descends to fix the material firmly.

5 is a main cross-sectional view of the workpiece detection apparatus of FIG. 1. As shown, the workpiece detection device 250 includes a piston rod 251 and a cylinder 257 on which the piston rod is mounted, the piston rod 251 having a size and a position that can be inserted into a hole in the bag 6 of the workpiece 5. And a coupling member 253 for holding the cylinder 257 and the piston member 254 through which the piston rod 251 penetrates and fixing the cylinder 257 and the support member 254 together. When the piston rod 251 is advanced over a specific position, the detection element 255 provided at a position on the cylinder 257 corresponding thereto is included. When the bag 6 of the raw material 5 is short or the tapping drill hole of the raw material is already processed, the piston rod 251 is advanced more than normal and eventually the detection element 255 installed at the already set position is removed. Operate to stop the entire system or to drain the material (5).

FIG. 6 is a side view of a tool post engaged on the rail of FIG. 1 and provided with a cam shaped flow control valve; FIG. Since the structure related to this is the same in the third process, the fourth process, and the fifth process, the third process will be described.

The tool rest assembly 350 has a tool fixture 310 for fixing a tool and a lower member 320 and the tool fixture 310 that are complementarily engaged with a rail 365 installed on an upper surface of the bottom support structure 360. A driving pulley 325 coupled to one shaft of the driving motor 320 and the driving motor 320 as a driving means for rotating the tool holder 310 and the driven pulley 315 connected to one axis, and the driving pulley ( 325 and a belt 330 connecting the driven pulley 315, the tool rest assembly 350 is engaged by the rail 365 installed on the upper surface of the support structure 360 by the cylinder 380 You can slide back and forth. Further, one of the piston rods 380 of the cylinder 380 pushes the tool rest assembly 350 and another rod 383 is shorter than the rod 380 so that the tool rest assembly 350 is in a specific position. In the case of the above-mentioned advance, the cam-shaped valve installed on one side of the support structure adjacent to the cylinder is turned to adjust the flow rate of the cylinder working medium and thus decelerate in advance to allow rapid stop.

7 is a cross-sectional view showing the state of the raw material before processing and the product after processing.

According to the conventional machining process, i) a step of drilling one end of a raw material using a cemented carbide drill in order to process a hole before female threading, and ii) a step of cutting a cross section of the end portion to a predetermined length; The process of chamfering the end of the inner part to serve as a guide for tapping and to guide the counterparts in assembling the product, and iii) to remove burrs generated at the outer peripheral edges during cross-section processing. It is mainly divided into the process of external chamfering, and (iii) the process of tapping the female thread which processes a thread in the said tapping drill hole. Thus, if possible, the necessity of shortening the above processes in order to reduce the production time of the product has been constantly raised, but special tools have not been developed. Therefore, in the present invention, the process of processing the tap drill hole at one end of the material by using a carbide drill to process the hole before machining the female thread using the material (1) before the processing of the punched blunt head with a bag, ii ) The process of internally chamfering the end to serve as a guide when tapping and guiding the counterpart when assembling the product, while cutting the end surface of the end to have a predetermined length; The external chamfering process removes burrs generated at the outer circumferential edge during machining, and iii) the process of tapping a female thread for processing a thread in the tapping drill hole. A cross-sectional view of the product 5 completed through the previous process is shown in FIG. Usually the primary processed raw material is cast and purchased in part processed. Therefore, the secondary processing is the main purpose.

FIG. 8 is a schematic cross-sectional view showing a tap drill hole using the cemented carbide drill of FIG. 1, and FIG. 9 is a view illustrating a process of simultaneously manufacturing an end surface and an inner chamfer of a material using a combined finishing cutting tool. Schematic diagram. Since the tapping drill hole machining process is a general drilling process, description thereof will be omitted and FIG. 9 will be described in more detail. The end surface 451 and the inner chamfer 452 of the tool 410 with the two blade plates 420 and 430 and the tubular end 450 as shown are shown in the cross section shown. 9 to 12 are renumbered differently from other drawings for the convenience of description, and in the drawings, the same reference numerals are used for the same parts.

In order to simultaneously process the end surface 451 and the inner chamfer 452 of the tubular material 450, the tool 410 and the material 450 move relative to each other. In this process, either the tool 410 or the material 450 may be fixed. Moreover, the tool 410 and the workpiece 450 move towards each other over a distance until the end surface 451 and the inner chamfer 452 of the workpiece are completely fabricated and / or machined. To this end, the workpiece 450 is fixed, and the tool 410 may advance toward the workpiece 450. As soon as the end surface 451 and the inner chamber 452 are fully machined, the forward motion can be stopped and the tool 410 can be separated from the workpiece 450 in the opposite direction to the forward direction.

10 is a schematic view showing the plane, front and side of the finishing cutting tool according to an embodiment of the present invention, Figure 11 is a front view showing the shape of the tool arrangement of Figure 9 to avoid interference between the workpiece and the tool blade or flank to be.

As shown in the embodiment of the present invention, the front end of the tool body 415 divided by the grooves 418 and 419 called chip pockets formed in the longitudinal direction of the cylindrical tool body portion 415. At 416 and 417, two blade plates 420 and 430 are fixed. The first blade plate 430 for processing the end surface 451 is inserted into the side of the divided cylindrical shearing 417 of the tool body 415 and fixed to the blade sheet 417a formed, which is opposite in the radial direction. The second blade plate 420 for processing the inner chamfer 452 is inserted into the side of the divided conical shear 416 of the tool body 415 is fitted and fixed to the blade sheet (416a) formed. The radial positions of the tool body portions 415 of the blade plates 420 and 430 are set to radii for manufacturing the end surface and the inner chamfer, respectively.

At this time, the second blade plate 420 is mounted inclined downward in the axial direction so as not to interfere with the inner surface of the material, and mounted inclined upward in the radial direction. The inclination angle in the axial direction is referred to as the front inclination angle α, and the inclination angle in the radial direction is referred to as the side inclination angle β, and the front inclination angle α is preferably about -6 ° as a negative value. Is a positive value. For example, when the inner diameter Φ of the material is about 13 mm or less, it is preferably about + 15 °.

12 is an assembly view of the finishing cutting tool of FIG.

The first blade plate 430 is fixed to the blade sheet 417a formed in the chip pocket 418 of the body portion 415 of the tool 410, and the second blade plate 420 is fixed to the body of the tool 410. The portion 415 is connected by a clamping claw or by screwing or soldering or other suitable way to be fixed directly to the blade sheet 416a formed in the chip pocket 419. In this embodiment, the bolts 421 and 431 are coupled to each other. However, for example, when the diameter of the tube is smaller than 6 mm, the cutters 422 and 432 may be made together with the tool 410. In this case, there is an advantage that the blade plates 420 and 430 and separate means for fixing them can be omitted.

Finally, blade plates 420 and 430 can be designed to any desired polygonal shape.

FIG. 14 is a schematic cross-sectional view showing a state in which the end outer chamfering is collectively processed by an outer circumferential chamfering tool at the end, and FIG. 15 is a female thread tap machining in the end tap drill hole by a tap chuck. FIG. 16 is a side view of the female thread tapping tool assembly of FIG. 1. FIG. In order to chamfer the outer circumference of the material 55, a special tool 50 corresponding to the machining surface 510 has already been developed. Therefore, the description of the cutting process using the same will be omitted, and the apparatus used in the tapping process, which is the core process of the present invention, will be described in more detail. When the driving motor 630 rotates, the rotational force is transmitted to the driven shaft 625 by a timing belt 633 connected to the driving pulley 631 and the driven pulley 624, and a lead screw integrally formed on the driven shaft 625. When 621 rotates, the entire tool rest assembly 650 is installed on the top surface of the bottom support structure 640 by a supporting member 623 through which the half nut 622 is engaged and the lead screw is engaged. Sliding forward by riding the rail 641, the driven shaft 625 is integrally connected to the fixture assembly 610 for fixing the tab chuck 612 and rotates together. The tap chuck 612 advances with the tool rest assembly 650 while rotating with the driven shaft 625, and is inserted into the tapping drill hole of the material to perform a female thread tapping operation. At this time, the pitch of the screw 611 of the tap chuck and the screw pitch of the lead screw 621 is slightly different, and the tool fixture 613 is supported by the elastic body 614 and integral with the driven shaft. By the slip shaft 615 coupled to prevent the excessive machining during the screw processing, the flow of the tap chuck 612 to some extent is allowed to achieve a smooth thread processing.

 It is to be noted that the specification of the processing process is intended to aid the description of the invention and is not intended to limit the claims.

The above-described embodiments are merely for explaining the present invention, and the scope of protection of the present invention is not limited to these embodiments, and it is intended to those skilled in the art to which the present invention pertains within the scope of the following claims. Obvious changes or additions are pointed out within the scope of the present invention.

As described above, according to the present invention, the female thread tap of the steering tie rod end for a vehicle can be mass processed simultaneously. This minimizes the processing time of the parts per unit time in mass production of a certain product, thus securing an advantageous position among processing supply competitors in terms of price and quality.

In the case of rapid advance of the tool post assembly in the rotary transfer table, if the rapid stop is difficult, the stop auxiliary control device is provided in advance so that the rapid stop can be performed without impact and thus the life of the facility is guaranteed.

Furthermore, using the finishing cutting tool of the present invention, the end surface and the inner chamfer of the tubular material can be processed simultaneously in a single operation, thus shortening the machining process leading to the final product.

In addition, the proper placement and inclination angle of the blade plate can prevent interference between the material and the cutting tip, and between the cutting tips, and the use of the general-purpose cutting tip has the effect of low tool making cost.

1 is a process-specific layout on a rotary transfer table according to an embodiment of the present invention.

Figure 2 is a partial perspective view showing a robot for picking up the material aligned in the stoka according to an embodiment of the present invention and put it in a predetermined position.

3 is a partial perspective view showing a material positioning device for adjusting the material to be placed in a predetermined direction when using the robot of FIG. 2 to pick up the material to a predetermined position.

4 is a partial perspective view of a material fixing device installed in the rotary transfer table of FIG.

5 is a main cross-sectional view of the workpiece detection device of FIG.

FIG. 6 is a side view of a tool post engaged on the rail of FIG. 1 and provided with a cam shaped flow control valve; FIG.

7 is a cross-sectional view showing the state of the material before processing and the product after processing.

FIG. 8 is a schematic cross-sectional view showing a tap drill hole using the carbide drill of FIG. 1. FIG.

9 is a schematic diagram showing the production of the end surface of the material and the inner chamfer at the same time using the combined finishing cutting tool.

10 is a schematic view showing the plane and front and side views of the finishing cutting tool according to an embodiment of the present invention.

FIG. 11 is a front view of the tool arrangement shape of FIG. 1 to avoid interference between the workpiece and the tool blade or flank. FIG.

12 is an assembly view of the finishing cutting tool of FIG.

13 is a schematic view showing a conventional machining process.

14 is a schematic cross-sectional view showing a state in which the end outer chamfering is collectively processed by the outer circumferential chamfering tool at the end.

15 is a schematic cross-sectional view showing a female thread tap machined into an end tap drill hole by a tap chuck.

FIG. 16 is a side view of the female thread tapping tool assembly of FIG. 1. FIG.

<Brief description of the symbols for the main parts of the drawings>

5: raw material 10: rotary transfer table

100: material supply and discharge process 200: processing material detection process

300: tapping hole machining process 400: length machining and internal chamfering process

500: external chamfering process 600: female thread tapping process

700: iron removal process

Claims (12)

In a rotary transfer machine for batch automatic processing of female thread taps and finishing of a steering tie rod end for a vehicle: A rotatable rotary transfer table, in which at least one device for fixing a material at a predetermined position is installed, and at each position, a device for each process is disposed so as to correspond to the outside; A material supply device for supplying raw materials at a specific position of one of the material fixing devices on the outer periphery of the rotary transfer table; When the cylinder provided with the piston and the material supplied to the material fixing device together with the rotary transfer table are rotated by an angle to reach the next position circumferentially, the head of the piston is placed on the outer peripheral side of the rotary transfer table. A support member coupled to a cylinder positioned to be inserted into a fixed end of the workpiece, and a detector for detecting a signal that the piston head goes over a predetermined length when the piston head is inserted into the hole of the end of the workpiece And a workpiece detection device including an output device for performing a predetermined operation upon receiving a signal from the detector; A carbide drill assembly for drilling a tap drill hole in one end of the work piece when the rotary transfer table is rotated by an angle so that the work piece fixed to the transfer table reaches a circumferential position following the work piece detection; End tap cutting to simultaneously chamfer one end of the end and the inner diameter of one end of the material when the rotary transfer table is rotated by a certain angle so that the material fixed to the transfer table reaches the circumferential position following the tap drill hole machining. A tool assembly; End peripheral cutting tool assembly for chamfering one end of the hole end side outer diameter side of the material when the rotary transfer table is rotated by a certain angle following the end finishing cutting to reach the circumferential position of the material fixed to the transfer table Wow; A female threading tool assembly for machining female thread taps in one end of the tab drill hole of the material when the rotary transfer table is rotated at an angle such that the end of the end peripheral finish cutting is rotated at an angle such that the material fixed to the transfer table reaches a subsequent circumferential position; ; And a material ejection device for rotating the rotary transfer table at an angle to return to the initial material supply device position after the female thread tapping and discharging the finished product. 2. The steering tie rod end of claim 1, wherein the output device of the workpiece detecting device is a device for stopping rotation of the rotary transfer table when a signal for entering the piston head over a predetermined length is detected. Tap-only machine. The apparatus of claim 1, wherein the output device of the workpiece detecting device is a device for discharging material from a material fixing device installed in the rotary transfer table when a signal for entering the piston head over a predetermined length is detected. Tap-only machine in the steering tie rod end. According to claim 1, When the finished product is discharged from the material discharging device, further comprises a chip removing device for removing the cutting chips by blowing air to the internal cutting surface of the steering tie rod end through the tip erected vertically from the air blower Machine for exclusive use of the tap of the steering tie rod end characterized by the above-mentioned. According to claim 1, wherein the material supply and discharge device using a robot (robot), by using the robot to operate the robot from the stock-car to the material aligned to the material fixing device When supplying, the tab of the steering tie rod end, characterized in that it further comprises a material position adjuster for adjusting the fixed position of the material in advance by pressing the material slightly with two plates so that it can be accurately placed in a specific position of the material fixing device Dedicated processor. 6. The tap only machine of claim 5, wherein the same robot is used as the material supply device and the discharge device. According to claim 1, The rotary transfer table is rotated 360 ° When the signal is received that the return to the initial position is caught a lamp and a control device for the continuous operation is performed by the return signal characterized in that it further comprises Tap-only machine in the steering tie rod end. According to claim 1, End end cutting tool assembly for simultaneously chamfering the end end side hole and the inner diameter side edge of one end of the raw material, With an end finish cutting tool with two blade plates each having at least one cutter and fixed to the tool: A first blade plate having a cutter for processing an end surface of the tubular material; A second blade plate having a cutter for processing an inner chamfer adjacent said end surface; A blade sheet and a cutting chip having a groove formed in the divided cylindrical front end portion to fix the first blade plate and a blade sheet and a chip having a groove formed in the conical shear portion divided to fix the second blade plate And a cylindrical body portion having a chip pocket with a groove formed in the longitudinal direction to receive and discharge the same without difficulty, and a shank protruding from the body portion; When the cutter of the first blade plate processes the end surface of the tubular material, at the same time the blade sheet formed in the divided cylindrical body front end so that the cutter of the second blade plate can process the inner chamfer of the tubular material. Positioning the first blade plate and disposing the second blade plate on the blade sheet formed at the front end of the divided conical body. 9. The tab only machine as claimed in claim 8, wherein the first blade plate and the second blade plate are disposed to be opposite to each other in the radial direction of the body portion. 9. The tab-only machine of the steering tie rod end of claim 8, wherein the second blade plate has a negative front inclination angle and a positive side inclination angle so as to avoid interference with the material and evenly contact the cutter along the cross section. . The tool assembly of claim 1, wherein the carbide drill assembly, the end finish cutting tool assembly, the end peripheral finish cutting tool assembly, and the female thread processing tool assembly use an air cylinder as its drive means, and when the air cylinder is actuated, the tool Each of the tool assemblies has a member complementary to the rail installed in the foundation such that the assemblies each perform only a linear sliding motion, and a piston rod protruding from the cylinder to pre-decelerate its straight velocity before reaching a particular position. A tap-only machine in the steering tie rod end, characterized by reducing the air flow rate by turning a cam attached to a valve that controls the air flow rate of the air cylinder when advancing above a certain position. 2. The female threaded tool assembly of claim 1, wherein the female threaded tool assembly engages with the lead screw and a lead screw rotatably supported on one surface of the tool post that is coupled to the drive means and integrally coupled to the spindle axis to receive the spindle. A support member to which a half nut is attached, and a tap chuck supported to float using an elastic member inside one end of the spindle opposite to the lead screw for pitch correction during threading, And a tool rest integrally coupled to the lead screw so that when the lead screw rotates in engagement with the half nut, the tool rest moves on a rail engaging the lower portion of the steering tie rod end.