KR20050003843A - Transfer Machine for the subject matter of cap type and Processing method using the same and Use Parts - Google Patents

Abstract

PURPOSE: A transfer machine for processing a cap-shape material, a machining method, and components are provided to keep constantly the length of a machined surface of the material capable of being changed in moving back a collet chuck and to set freely the length of the machined surface. CONSTITUTION: A simultaneous processing method of a transfer machine is composed of steps for inserting a supply jig for each step by a specific signal into a material(10) for each step, opening a fixing tool installed at a main shaft to loosen the material coupled to the main shaft, and separating a processed material from the main shaft by moving back the supply jig fitted with the material at the same time by a supply unit(500); transferring the supply jig inserted with the material to a set position correspondent to each next processing device(300A,300B,300C,300D,300E) by operating a transfer unit(400) when the supply jig moves backward completely; fitting the material by the fixing tool when the material inserted in each supply jig is thrust into the fixing tool mounted at the main shaft of the processing device by operating the supply unit moving back the supply jig at the same time to separate the material and the supply jig by operating the supply unit again; rotating the material fitted in the fixing tool together with the main shaft and processing the material according to at least one predetermined step by installing a tool assembly(200A,200B,200C,200D,200E) at the position for machining the material fitted by the fixing tool; and returning the supply jig to a material supply position again by the transfer unit after the supply jig moves back at the same time.

Description

{Transfer Machine for the subject matter of cap type and processing method using the same and use parts}

The present invention divides the hollow cap-shaped material into one or more parts at the same time to be processed and mass-produced in one or more processes. The present invention relates to a machine tool for processing, and more particularly, to a method and means for supplying, conveying and discharging material to simultaneously perform a multi-step process in a cap-shaped transfer machine.

Conventionally, certain parts have been machined using CNC machine tools designed to be skilled and unnecessary. 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 is performed simultaneously by combining a machining facility equipped with the above spindle and an Inline Transfer Machine.

However, in the machining of specific shape parts such as vehicle brake caliper piston caps, the whole machine cannot be processed in a batch using a conventional transfer machine. There is a problem in that the transfer line is installed again between the process groups or have to be handed over to the subsequent process by the operator, it is difficult to process a material other than a predetermined size has the disadvantage of poor compatibility of the material.

In addition, a conventional stopper installed on a collet chuck that has been used in various machine tools is supported by a bearing in the collet chuck, and is stopped when the collet chuck is rotated together with the spindle. There is a disadvantage that processing is required.

Furthermore, when the material is transferred to the tool for each process by using the inline transfer machine, if the center of the feed fixture is not exactly centered on the spindle center installed in each process, the concentricity of the material to be processed is affected to achieve smooth material supply and discharge. Since it was impossible to do this, there was a burden that the transfer precision was very high for smooth transfer between processes.

In general, an inexpensive and fast-moving air cylinder is preferred as a transfer driving means of the transfer table, but the air cylinder is difficult to stop quickly. Therefore, in order to reduce the loss caused by the transfer, a proper control method was required to stop the material rapidly without stopping the transfer of the material over a certain position.

It is an object of the present invention to overcome these problems of the prior arts, by improving the conventional inline transfer machine to rapidly mass process hollow cap-shaped materials into specific shapes such as brake caliper pistons, It is to provide a method and apparatus for supplying, transporting and discharging materials so that the entire process can be performed simultaneously by arranging the processing equipment in order in the process order. This is due to the urgent need to minimize the machining time of the part per hour.

In addition, another object of the present invention is to improve the conventional collet chuck to accommodate the material using the cylinder at the same time to retract the collet by retracting the collet chuck to inevitably fix the material to the spindle, in the process of retracting the collet chuck It is to provide a collet chuck assembly that allows the length of the processing surface of the material to be changed to be kept constant while setting the length of the processing surface arbitrarily, and is coupled to rotate with the spindle so that no traces of rotation remain on the product. .

It is a further object of the present invention to provide an improved collet chuck in which a stopper in the collet chuck of the final workpiece discharge step inserts a bar supported by an elastic body into the stopper to facilitate the discharge of the final workpiece. have.

Another object according to an embodiment of the present invention is the collet material supplied by the feed fixture even if precise centering is not made between the feed fixture and the collet chuck fixed to the spindle to transfer the material to the processing device for each processing process It is to supply a feed fixture assembly that is supported by an elastic body around the feed fixture so as to be able to bite the chuck without difficulty.

Another object according to an embodiment of the present invention is to provide a product which is the final workpiece to prevent the device and the product is designed to be made to change the processing direction of the inter-process material quickly and smoothly after the final process is automatically discharged To provide a discharge cover attached to the donut-shaped electromagnet that can be stably received,

Furthermore, an object according to a preferred embodiment of the present invention is an apparatus and an initial material for forwarding and reversing an apparatus for transferring a transfer table provided with a series of feed fixtures from side to side and a transfer table for supplying a material so that the material may be bitten by the collet chuck. When a rapid movement is required, such as a device for introducing the gas and a final device for discharging, an air cylinder that is capable of absorbing shock and is easily controlled and capable of rapid conveyance is provided. If a driving force is required, a hydraulic cylinder is provided.

In addition, another object according to a preferred embodiment of the present invention, when using a pneumatic cylinder as a drive means of the transfer device is difficult to stop quickly during rapid movement, by providing a multi-stage stop auxiliary control device, to enable rapid stop without impact This is to increase the life of the equipment. That is, when the transfer table reaches the transfer setting position, the flow control device for adjusting the flow rate of the cylinder inlet and outlet by turning the cap-shaped handle attached to the upper part of the valve when the transfer table reaches the transfer setting position and the transfer limit of the transfer table secondarily It is to provide a stopper that detects the proximity to the transfer table to reduce the transfer speed of the transfer table in advance and finally stops the transfer table from progressing when the maximum transfer limit is reached.

1 is a schematic layout view of a transfer machine according to an embodiment of the invention.

Figure 2 is a front view of the feed fixture support installed in part A of Figure 1;

3 is a side assembly view of the feed fixture support and the feed fixture of FIG.

4 is a cross-sectional view of the assembly of the collet chuck assembly and the feed fixture fitted to the portion C of FIG.

5 is a side view of a transfer machine according to an embodiment of the present invention.

6 is an exploded view of a collet chuck assembly according to one embodiment of the invention.

Figure 7 is a cross-sectional view of the stopper used in the final process and the stopper used in the general process according to an embodiment of the present invention.

8 is a schematic layout view of a work direction reversing apparatus from step 4 to step 5 according to an embodiment of the present invention.

9 is a schematic layout view of a raw material input device of step 5 according to an embodiment of the present invention.

10 is a schematic layout view of the final discharge device according to an embodiment of the present invention.

11 is a schematic perspective view of a transfer table quick stop control apparatus according to an embodiment of the present invention.

12 is a cross-sectional view of the material for each process that has undergone a predetermined machining process according to an embodiment of the present invention.

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

10: material 20: material loading loading part

100: transfer table

110: transfer table rapid start / stop control device

200A, 200B, 200C, 200D, 200E: Supply jig assembly

300A, 300B, 300C, 300D, 300E: Machining Equipment by Machining Process

Collet chuck assembly: 310A, 310B, 310C, 310D, 310E

400: transfer means 500: supply means

600: input means 700: discharge means

In order to achieve the above technical problem, the present invention provides a method of supplying, processing, and discharging a transfer machine for processing a hollow cap shape material, wherein the feed fixture for each process is simultaneously processed by a specific signal. Inserting into it opens the process-specific fixtures installed on the main shaft of one or more processing-process processing apparatuses to release the process-specific materials connected to the main shaft, and simultaneously retreats the feed fixtures into which the process-specific materials are inserted by the supply means. A discharge step of separating the processed material from the main shaft by the process; After the discharging step, if the supply jig for each process into which the material for each process is inserted backwards at the same time, the conveying means is operated to transfer the supply jig fitted with the material for each process to the set position corresponding to the next processing device for each process. A transfer step; After the conveying step, the feed means is operated to push the material fitted to each feed fixture into the process-specific fixture installed on each spindle by process, so that the material is caught by the process-specific fixture. A supplying step of simultaneously retracting the supplying jig for each process so that the supply jig and material are separated by operating the supplying means again when caught by a fixture; A processing step in which the material is bitten by the process-specific fasteners and rotates together with the main shaft, and the process-specific tool assemblies are respectively installed at positions capable of processing the material bitten by the process-specific fasteners and simultaneously processed according to one or more predetermined processes; After the process step feed jig retreat at the same time through the supply step, by the transfer means to process the material of the cap (cap) type including a return step of simultaneously returning back to the material supply position to the material supply position It provides a method of simultaneously processing a transfer machine.

In the present invention, it is preferable to further include an input step of pushing the material to the first supply jig by the input means so that the opening of the material sequentially introduced from the outside in the initial raw material input position at the same time as the discharge step is fitted to the first supply jig. When the supply step is completed after the specific process, the transfer table is advanced, and supplemented with this, a separate supply cylinder installed on the table operates to bite the material inserted into the feed fixture. Supply a position, and operate a separate bite cylinder to bite and fix the material in the opposite direction to the table, and when the material is dropped in front of the rod bar connected to the supply cylinder as it is through the guide, the supply cylinder is operated to Transition the material by load bar It is often necessary to include the step of inverting at least one material processing direction supplied to the collet chuck provided in the spur table side direction.

Furthermore, after the final process is completed, the discharging step is automatically discharged by the spring force of the stopper mounted in the collet chuck while discharging the finished product of the collet chuck and discharging the donut type electromagnet so that the product does not pop out. It accommodates in the cover, and lifted to the upper side so as not to interfere with the collet chuck assembly by the moving cylinder, and then using the discharge cylinder to push the finished product loaded on the discharge cover with the discharge guide to discharge the test bench desirable.

In order to achieve the above-mentioned other technical problem, the present invention provides a transfer machine that performs a multi-stage machining process using the method simultaneously, wherein the fixture assembly and the rotating material installed to bite the material and rotate it together with the main shaft have a desired shape. At least one processing device installed for each material processing process with the tool assembly to be processed by; A transfer table in which the at least one supply jig is spaced apart in a conveying direction; Transfer means capable of reciprocating the transfer table to a set position such that each of the feed fixtures corresponds to a position of the processing apparatus for each process; And a supply means for reciprocating the transfer table on which the feed fixture is installed to be moved forward and backward to the processing apparatus side. Provided is a transfer machine for processing blank cap shaped materials.

In the present invention, it is preferable to further include an input means for pushing the material to the first supply jig so that the opening of the material sequentially introduced from the outside is inserted into the first supply jig installed in the transfer table, the fastener is a material to be gripped The collet chuck is provided with a collet that is extended or contracted to be fixed. The length of the material is shortened by pulling the collet chuck and the cylinder to contract or expand the collet chuck by pushing and pulling the pull bar and the pull bar installed in the main shaft to which the collet chuck is coupled It is preferred to include a stopper coupled in the main shaft to hold the material in a predetermined position so as to prevent it, and in the discharge step of the last process in which the final workpiece is produced, the stopper is mounted on the elastic body to push the material out. It is preferable to further include a support bar, If it is necessary to change the processing direction, the guide and the guide receiving the bite material and the bite cylinder by placing the bite cylinder and bite cylinder to bite the supplied material to be fixed to the other supply cylinder and the other side to smoothly change It is preferable to further include an inverting device including a separate supply cylinder installed at the end, and in the discharge cover and the discharge cover with an electromagnet that can stably receive the discharged workpiece in the final discharge step of discharging the final workpiece It is preferable to further include a discharging means for pushing the finished work. The support of the feed or discharge tool may further include an elastic body to allow the top, bottom, left and right clearances of the feed or discharge tool to absorb an incorrect alignment with the material. Supported by the conveying means, balls Means, input drive means of the means and the discharge means is preferably in the different types of cylinders. In addition, including a valve for controlling the flow rate of the medium flowing into the cylinder of the transfer means when the transfer table reaches the transfer setting position by turning the cap-shaped handle attached to the upper portion of the valve the protrusions installed on the transfer table flow rate A flow control device that adjusts the flow rate and a shock absorber to detect the proximity of the transfer limit of the transfer table and to reduce the transfer speed of the transfer table in advance, and a stopper to maintain the transfer limit of the transfer table. Is recommended.

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

1 is a schematic layout view of a transfer machine according to an embodiment of the invention, Figure 5 is a side view of a transfer machine according to an embodiment of the present invention, Figure 12 is a predetermined machining process according to an embodiment of the present invention Rough section of material by process. For the description of the embodiment of the present invention will be described with the transfer machine and its progress method. One embodiment of the present invention, the first process for processing the outer diameter of the cap-shaped material, the second process for processing the groove on the material outer periphery, as shown in FIG. The process is divided into a third process, a fourth process of chamfering the cutting part, and a fifth process of rounding the edge of the cover part of the material, and are simultaneously performed. It is to be noted that the specification of the processing process is intended to assist in the description of the invention and is not intended to limit the claims.

In one embodiment of the present invention shown in Figure 1 is a feed hopper 50 for randomly inserting the cap-shaped material and the material erected of the material put into the supply hopper is discharged back to the supply hopper 50 only lying The device 30 for detecting the position of the opening of the cap-shaped material so that the straight feeder 40 and the opening of the material, which is designed to continue to supply, is always placed in the direction that can be inserted into the supply jig 200A, and switches the direction if necessary. An apparatus for stopping the machine tool in case of excessive loading of the material due to an error of the inclined guide 20 and other material supply process installed so that the materials arranged so that the openings face in one direction are sequentially inserted into the machine tool of the present invention. Although the raw material input device is included, the description thereof is omitted in the present invention.

As can be seen in Figures 1 and 5, to present in one embodiment of the present invention is the input cylinder 600 as the material input means installed thereafter; A transfer table 100 in which supply jig assemblies 200A, 200B, 200C, 200D, and 200E are integrally installed; A conveying cylinder 400 as a conveying means for conveying the table 100 from side to side; The collet chuck assembly 300AA, 310BB, which is connected to the spindle of the processing apparatus 300A, 300B, 300C, 300D simultaneously with the material inserted into the feed fixtures 260A, 260B, 260C, 260D, and 260E by operating the table 100 back and forth. A supply cylinder 500 as a supply means for pushing to 300CC and 300DD; Tool assembly (11, 12, 13, 14, 15) and collet chuck (320A, 320B, 320C, 320D, 320E: see Fig. 4) with special tools for each processing process and micro dimensions are attached Cylinders (not shown) and spindles (330A, 330B, 330C, 330D, 330E: see FIG. 4) are pulled or pushed by the collet chucks (350A, 350B, 350C, 350D, 350E: see FIG. 4). And a collet chuck assembly 300AA, 310BB, 300CC, 300DD having stoppers 310A, 310B, 310C, 310D, and 310E (see FIG. 4) installed at the inside of the collet chuck to keep the processing unit of the material constant; It relates to a material supply and processing of the transfer machine (1) consisting of a discharge device including a redirection device 900 and a discharge means 700, a discharge device and a method thereof.

First, in the method and apparatus for supplying and discharging the material of the present machine tool according to an embodiment of the present invention, the supply of the material is performed by transferring the transfer table 100 to which the feed fixtures 260A, 260B, 260C, 260D, and 260E are attached. When the material (10, 11, 12, 13, 14) is inserted into the supply jig (260A, 260B, 260C, 260D, 260E) by the injection cylinder 600 and the supply cylinder 500, the material (10, 11, When 12, 13, and 14 are inserted into the feed fixtures 260A, 260B, 260C, 260D, and 260E, the transfer table 100 on which the feed fixture into which the material is inserted by the transfer cylinder 400 is installed is left in each processing position. · The machine moves to the right and backwards and moves backwards, and multi-step machining is carried out simultaneously by bringing the tool close while rotating the moved material by the spindle.

The sequence of the detailed operation is as follows, and it is confirmed that the main interest of the present invention lies in the smooth progress between each step since the smooth movement of materials between processes is a problem in order to maximize production in a short time.

[Step 1: Material Discharge Stage]

After the entire process is performed at the same time in the processing step, the piston 520 of the supply cylinder 500 advances the transfer table 100 returned to the initial input position I of the raw material, and the specific signal, for example, the supply jig 260A, When 260B, 260C, 260D) is signaled that the piston head portion has reached the set position 540 of the supply cylinder 500 corresponding to when it is fully inserted into the material for each process, a cylinder installed inside the processing apparatus (not shown) The pulled bar (350A, 350B, 350C, 350D) pushes the collet chuck (320A, 320B, 320C, 320D) coupled to it protrudes out the ends of the spindle (330A, 330B, 330C, 330D), the divided outer periphery of the collet chuck The stage is extended to release the material being bitten, the material is fully inserted into the advanced feed fixtures 260A, 260B, 260C, and 260D, and then the feed fixture assembly 200A, 200B, 200C, 200D, 200E with the material is supplied. The materials (10, 11, 12, 13, 14) processed by the process while simultaneously reversing by the cylinder 500 is It is separated from the processing equipment.

[Step 2: Material Input Step]

At the same time as the material discharging step of the first step, the first supply jig 260A is completely inserted into the first supply jig 260A at the initial material input position I by the inclined guide 20 so as to completely insert the raw material. The injection cylinder 600 is operated. The opening of the raw material 10 is fitted into the first supply jig 260A by the forward movement of the transfer table by the supply cylinder 500 and the linear action of the injection cylinder 600 described above. This keeps supplying new raw materials to the transfer machine.

[Step 3: Process Transfer Step]

When the supply jig 260A, 260B, 260C, 260D, 260E to which the specific signal, for example, the materials 10, 11, 12, 13, 14 are inserted, is fully retracted, up to the setting position 530 of the corresponding supply cylinder 500 Upon receiving a signal that the piston head has expanded, the feed cylinders reach the positions corresponding to the feed fixtures 260A, 260B, 260C, 260D, and 260E already corresponding to the respective processing units 300A, 300B, 300C, and 300D. Using the 400, the feed fixtures 260A, 260B, 260C, 260D, and 260E move the transfer table 100 spaced apart to the set position.

[Step 4: Material Supply Step]

The supply cylinder 500 in response to a specific signal, for example, a signal that the piston head of the transfer cylinder has reached the set position 440 of the transfer cylinder 400 corresponding to the set position of the transfer table 100 in the above-described process movement step. ) To move forward the transfer table 100 to the piston 520 of the supply cylinder (500). Therefore, the respective feed fixtures 260A, 260B, 260C, 260D, and 260E provided with the table 100 move forward simultaneously, whereby the materials 10, 11, 12, 13, and 14 inserted into the feed fixtures are processed for each process. Of the collet chucks 320A, 320B, 320C, and 320D installed on the spindle of the processing apparatus 300A, 300B, 300C, and 300D. At this time, the cylinder of the collet chuck assembly 300AA, 310BB, 300CC, 300DD is operated to pull the pull bars 350A, 350B, 350C, and 350D, whereby the collet chucks 320A, 320B, 320C, and 320D enter the hollow spindle. The outer tapered surface of the collet chuck is in contact with the inner tapered portion of the hollow spindle, and the collet is contracted so as to simultaneously apply the material for each process and to be rotatable with the spindle. Subsequently, upon receiving the signal that the collet chuck bites the workpiece, the piston 520 in the supply cylinder 500 pulls back the transfer table 100. As a result, the feed fixtures 260A, 260B, 260C, 260D, and 260E installed on the table 100 retreat at the same time, and the material is separated from the feed fixture and ready for processing, and the table 100 is completely retracted. .

[Step 5: Reversal Steps in Steps 4 and 5]

According to this embodiment, the above-described material supply step is modified so that the processing direction of the material is reversed between the fourth process and the fifth process. Reference is made to FIGS. 8 and 9 together for description of this step. Here, when the material supply step is completed after the fourth processing process, the transfer table advances, and at the same time, in the present embodiment, a separate supply cylinder 800 is operated to compensate for this, so that the material inserted into the supply jig 260E is engaged. Supply to a location and bite the material using a separate bite cylinder 830 (see Fig. 8) rather than the collet chuck. This bite material is dropped in front of the rod 760 connected to the supply cylinder 700 as it is through the guide 900. At this time, the supply cylinder 700 is operated to supply the raw material to the collet chuck 320E installed in the existing transfer table side direction by the rod 760. Except for this, it is similar to the existing material supply stage. Thereby, the direction of the material can be changed without changing the only direction of supply of the material to process the cover portion of the cap-shaped material.

[Step 6: Machining Step]

Material (10, 11, 12, 13, 14, 15) is bitten by collet chucks 320A, 320B, 320C, 320D, 320E and rotates with spindles 330A, 330B, 330C, 330D, 330E The assembly is installed at a position where the material bitten by the fixture can be processed and processed simultaneously in a predetermined shape and a predetermined process. In one embodiment of the present invention, five machining processes that are sequentially connected with each other using a spindle, a slide tool box 3310A and 3320A, and a feeding device, which are specially manufactured to interlock with a collet chuck assembly, are automatically operated. It represents a machine tool that performs simultaneously to produce a finished product. In particular, the five processes are processed by two slide tool boxes (3310A and 3320A) at the same time, respectively, a different subsequent processing process or slide tool stand (3310A and 3320A) moving up and down and up and down Each tool is fixed to each process to process a desired portion, and the fine adjustment of the machining dimension can be processed to a desired dimension by visual inspection using a micrometer for front and rear length and vertical length adjustment. The adjustable dimension ranges approximately ± 50mm up and down and ± 50mm back and forth. At this time, the slide tool posts 3310A and 3320A are operated by a hydraulic cylinder, and all the sequence and setting positions and movements are programmed in advance.

The raw material is processed in the outer diameter of the raw material by the first processing device 300A, the groove is processed in the raw material processed by the second processing device 300B, the third processing device (300C) By the fourth processing device, the inner and outer diameters of the material whose cross section is processed through the third process are chamfered at the same time, and the bite direction is finished after the fourth process. The converted raw material is processed by the fifth processing device to cover the end face of the raw material and round the corners.

In this embodiment, the final discharged product is a vehicle brake caliper piston. These processing processes take place simultaneously, enabling mass production in a short time. When producing a brake caliper piston for a vehicle using an automatic machine tool currently used in the same industry, the unit output is about one per 30 seconds, but in the case of one embodiment of the present invention can be up to about one per 7 seconds .

[Step 7: Return Step]

After the transfer table 100 is fully retracted through the above-described material supply step, the transfer cylinder 400 is operated to return the first supply jig 260A installed in the transfer table 100 to the initial material input position I. The transfer table 100 is moved to the left until it is. This repeats the material discharge step or the material input step to achieve a single cycle.

[Step 8: Product Discharge Stage]

This example adds a final product discharge step to this cycle. 10, the spring force of the second stopper 310E mounted in the collet chuck at the same time as the collet chuck 320E releases the finished product of the fifth process, which is the final machining process, in the material discharging step. Automatically discharge the finished product. At this time, the finished product is accommodated using a discharge cover 910 equipped with a donut-type electromagnet 920 so as not to protrude out, and then lifted upwards so as not to interfere with the collet chuck assembly by the moving cylinder 930, and then the discharge cylinder 940. The piston rod is passed through the hole drilled in the center of the discharge cover 910 cover to push the finished product 15 loaded on the discharge cover 910 to the discharge guide 950 to be discharged to the inspection table 3000.

FIG. 2 is a front view of the feed fixture support provided in the portion A of FIG. 1, and FIG. 3 is a side assembly view of the feed fixture support and the feed fixture of FIG. 2. Since the plurality of supply jig assemblies 200A, 200B, 200C, 200D, and 200E all have the same shape and structure, only one of the plurality of supply jig assemblies 200A will be selected and described. In the supply jig assembly 200A according to an embodiment of the present invention, if the center of the supply jig is not accurately aligned to the center of the spindle spaced apart by each process, the concentricity of the material to be processed may be affected, thereby preventing smooth material supply and discharge. When using the transfer machine 1 to transfer the material to the tool for each process, in order to reduce the burden of having a very high conveying accuracy, the feed fixture 260A finds its own center so that it can be guided to the collet chuck 320A. It is a floating support structure.

As shown in FIGS. 2 and 3, the jig support shaft 250A is floating in the supply jig assembly housing 240A, and one end of the four springs 220A is one end of the four guide stop bars 230A. And the other end of the spring 220A is supported by the fixing bolt 210A, and the other end of the guide stop bar 230A supported by the spring is divided and supported by the jig support shaft 250A, and the jig The assembly housing 240A is adapted to receive the guide stop bar 230A, the spring 220A and the fixing bolt 210A. In one embodiment of the present invention is designed such that the clearance of the center of the feed fixture is allowed to approximately ± 1.5mm by the above structure.

Figure 4 is an assembled cross-sectional view of the feed fixture fitted to the collet chuck assembly and the material installed in the portion C of Figure 1, Figure 6 is an exploded view of the collet chuck assembly according to an embodiment of the present invention.

Since the collet chuck assemblies 300AA, 310BB, 300CC, and 300DD installed in the processing apparatuses 300A, 300B, 300C, and 300D have the same shape and structure, only one 300A of the plurality of supply fixture assemblies is selected. Let's explain.

As the respective feed fixtures 260A integrally installed on the transfer table 100 are advanced simultaneously, the material 11 fitted to the feed fixtures is the spindle of the respective processing apparatus for each process, for example, the processing apparatus 300A of the outer diameter machining process. (330A) is pushed into the collet (320A) mounted to slide inside the cylinder of the collet chuck assembly (300AA) is operated to pull the pull bar (350A) collet (320A) into the hollow spindle (330A) The 320A is contracted and fixed to be rotatable with the spindle to bite the material for each process. In addition, the collet 320A and the collet pulling bar 350A are accommodated in the space created inside the rotating hollow spindle 330A, and the collet 320A is screwed to the collet pulling bar 350A. Therefore, when the pull bar 350A is pulled by a driving means such as a cylinder, the collet 320A is pulled together. In addition, one end of the stopper 310A is fixed to the spindle 330A through a hole drilled in the center bottom of the collet 320A, and is installed to contact the material 11 inserted into the collet 320A and the pull bar irrespective of each other. At this time, the inner diameter of the hollow spindle 330A over the inner surface of the hollow spindle 330A in sliding contact with the side surface of the collet 320A is larger than the outer diameter of the corresponding collet 320A by a predetermined tolerance of the collet 320A. When the collet 320A is pulled into the hollow spindle 330A by pulling the pull bar 350A, the outer circumferential surface of the collet can be slid to tighten the material by sliding the divided outer rim of the collet 320A. It has a tapered shape that extends toward the side, and the corresponding inner surface of the hollow spindle also has a tapered shape that extends outward. The assembly sequence of the collet chuck assembly 300AA excluding the cylinder rotating with the shaft is shown well through FIG. The collet chuck assembly 300AA includes a stopper 310A and a stopper fixing bolt 311A, a collet 320A and a collet fixing bolt 321A, a spindle 330A and a bearing cover 331A, a bearing 332A, and an outer ring washer. (333A) and inner ring washer 334A, housing 340A, pull bar 350A, inner ring washer 351A, bearing 352A, outer ring washer 353A, inner ring washer 354A and rear cover 355A, inner ring washer 356A, pulley 357A, and spindle fixing nut 358A. In one embodiment of the present invention, the inner diameter is bolted to the pull bar to replace the different collet chuck, to provide compatibility so as to be able to bite the material having a variety of outer diameter through the front of the collet chuck.

7 is a cross-sectional view of the stopper used in the general process and the discharge bar attached to the discharge bar used in the final process according to an embodiment of the present invention.

As described above, the stopper 310A installed in the collet chuck 300AA has a material processed position by entering the spindle bit 330A together with the material bitten by the collet when the collet 320A is pulled by the pull bar 350A. In order to prevent the change in close contact with the bottom of the cap-shaped material to maintain a certain distance. Unlike the prior art, the stopper 310A is coupled to the middle wall of the hollow spindle 330A and is designed to rotate together with the stopper 310A when the spindle 330A rotates, thereby leaving no trace of rotation on a portion contacting the material.

In addition, in order to explain in detail the stopper 310EE of the collet chuck 300EE installed in the 5th process which is the final process, the stopper is shown as "1310E" at the bottom of FIG. As can be seen from the bottom of FIG. 7, the stopper 1310E supports the bar or pin 1311E and the pin 1311E installed inside the stopper housing 1313E, the stopper 1312E and the stopper 1312E, and the pin 1311E. And a spring 1315E installed in the stopper housing and the stopper and the housing coupler 1314. When the collet 320A releases the material, the pin 1311E is pushed out by the elastic force accumulated by the spring 1315E, whereby the material is automatically discharged.

8 is a schematic layout view of a material supply apparatus from step 4 to step 5 according to an embodiment of the present invention. The fourth supply jig 260E of the fourth process is coupled to the supply cylinder 800 additionally installed in the transfer table 100, and unlike other processes, the fourth supply jig 260E is spaced apart from the material bite position only by advancing the transfer table. This is the distance secured to avoid interference with the finished product discharge device. Therefore, the material is advanced by further using the supply cylinder 800 in order to bite the finished material of the fourth process to the bite cylinder 830 of the processing direction switching device 900. When the material reaches the processing direction change device, the bite cylinder 830 operates to bite the material, and after the piston rod of the supply cylinder is retracted, the bite cylinder 830 releases the bite material and rides the guide 900 to supply the material. Roll down.

9 is a schematic layout view of a material input device of step 5 according to an embodiment of the present invention. It shows the process of supplying the material to the collet chuck 320E by the supply cylinder 700 by receiving the material rolled down to the material supply position, supply the cover surface of the material rolled down to the material supply position (700) The rod bar 760 coupled to the piston rod head 730 in a straight line is pushed to push the opening side of the material to the collet chuck 320E of the fifth process. The rod bar 760 is designed to automatically return to its original position by the spring 740, and the material 15 guides the material 15 to the collet chuck 350E stably by the material supply guide 750. As a result, the processing surface is switched from the opening of the raw material to the cover side.

10 is a schematic layout view of the final discharge device according to an embodiment of the present invention.

At the same time as the collet chuck 320E releases the finished product after the fifth process, which is the final process, the second stopper installed in the collet chuck pushes the finished product by the restoring force of the spring. The discharged finished product is disposed to receive the discharge cover 910, and the discharge cover 910 is provided with an electromagnet 920 so as to stably receive the finished product. A hole is drilled in the center of the cover of the discharge cover 910, and the electromagnet attached thereto is also coiled in a donut shape so that the piston rod of the discharge cylinder 940 can pass through the hole. The discharge cover 910 carrying the finished product by the moving cylinder 930 can be moved upward, and the finished product loaded on the discharge cover 910 is discharged to the discharge guide 950 by the discharge cylinder 940 in a straight line It is arranged.

11 is a schematic perspective view of a transfer table quick stop control apparatus according to an embodiment of the present invention.

In general, an inexpensive air cylinder 400 is preferred as a transfer driving means of the transfer table 100. However, the air cylinder 400 is difficult to stop quickly during rapid movement. Thus, by placing a multi-stage device, rapid stop without impact can increase the life of the equipment. First, when the transfer table reaches the transfer setting position, the protrusion 101 installed on the transfer table rotates the cap-shaped handle 111 attached to the upper portion of the valve to control the flow rate of the cylinder 400 and the flow rate control device. By detecting the proximity to the transfer limit of the transfer table 100 in advance with the transfer table 100, the stopper 112 and the stopper that collides so that the transfer table does not proceed any more when the maximum transfer limit is reached with the showbar 112 which finally reduces the transfer speed. (stopper) 113. Showbar 112 may be implemented in a variety of forms, in the present embodiment is shown in the form of a shock absorber using a spring.

12 is a cross-sectional view of a raw material that has undergone a predetermined processing process according to an embodiment of the present invention. In the present embodiment, the first step of processing the outer diameter of the cap-shaped material, the second step of processing the groove on the outer periphery of the material, the third process of processing the end surface of the opening, and the fourth step of chamfering the outer and inner diameters of the cutting portion at the same time; The cover is divided into a fifth process of rounding the edges and edges of the cover part. Although not specifically described in the present invention, for the fourth process of simultaneously chamfering the outer diameter and the inner diameter of the cutting portion, a special tool having a bite tip attached to both sides is required. Special tools for the fifth process can also be used.

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, a hollow cap-like material can be rapidly mass processed in a specific shape such as a brake caliper piston through a multi-step process at the same time. This maximizes the number of parts processed per unit time for mass production of certain products, thus securing an advantageous position among processing supply competitors in terms of price and quality.

In addition, according to the present invention to accommodate the material using the cylinder at the same time to retract the collet by retracting the collet to inevitably fix the material to the spindle, the length of the processing surface of the material that can be changed in the process of retracting the collet chuck The length of the machined surface can be set arbitrarily while maintaining the constant, and it can be combined to rotate together with the spindle so that no trace of rotation remains on the product.

Furthermore, the final workpiece can be easily discharged, and the product can be prevented from being knocked out during automatic discharge, and the transition to a process requiring a material processing surface or a processing direction is smooth.

On the other hand, even if precise centering is not performed between the feed fixture and the collet chuck fixed to the spindle, the material supplied by the feed fixture can be easily bitten by the collet chuck.

When rapid stop is difficult during rapid movement as in the case of using a pneumatic cylinder as a transfer driving means of the transfer table, a rapid stop without impact is possible by the multi-stage stop assist control device, thereby ensuring the life of the equipment.

Claims (16)

In the method of supplying, processing and discharging a transfer machine for processing a hollow cap material: By inserting the feed fixture for each process into the material for each process at the same time by a specific signal, the process-specific fixtures installed in the main shaft of one or more processing-process processing devices are opened to release the material for each process connected to the main shaft. Discharging the feed jig fitted by the feeding means at the same time to separate the processed material from the main shaft by the feeding means; After the discharging step, if the supply jig for each process into which the material for each process is inserted backwards at the same time, the conveying means is operated to transfer the supply jig fitted with the material for each process to the set position corresponding to the next processing device for each process. A transfer step; After the conveying step, the feed means is operated to push the material fitted into the respective feed fixtures into the process-specific fixtures installed on the processing-side spindles of the respective processing devices. A supply step of simultaneously retracting the supply tool for each process so as to be separated from the supply tool and the material for each process by reactivating the supply means when caught by the fixture for each process; A processing step in which the material is bitten by the process-specific fasteners and rotates together with the main shaft, and the process-specific tool assemblies are respectively installed at positions capable of processing the material bitten by the process-specific fasteners and simultaneously processed according to one or more predetermined processes; And a step of returning the supply tool by process back to the material supply position at the same time by the transfer means after the supply tool for each process retreats at the same time through the supplying step; Simultaneous machining of transfer machines for processing cap-shaped materials. The method of claim 1, further comprising an input step of pushing the material into the first supply jig by the feeding means so that the opening of the material sequentially introduced from the outside in the initial raw material input position at the same time as the discharge step is fitted into the first supply jig. , Simultaneous machining of transfer machines for processing cap-shaped materials. The process according to claim 1, wherein during the supply step, the transfer table is advanced and supplemented with the additional feed cylinder to operate the material inserted in the feed fixture. It supplies the position, and operates a separate bite cylinder to bite and fix the material, and when the material is dropped in front of the rod bar connected to the supply cylinder as it is through the guide, the supply cylinder is operated to the material by the rod bar And inverting at least one material processing direction supplied to the collet chuck provided in the transfer table side direction. 2. The method of claim 1, wherein the discharging step after the final process is completed is performed by the spring force of the stopper mounted in the collet chuck while simultaneously discharging the finished product of the collet chuck, and the donut type to prevent the product from popping out. It is accommodated in the discharge cover equipped with an electromagnet, and raised to the upper side so as not to interfere with the collet chuck assembly by the moving cylinder, and then the finished product discharged to the inspection guide by pushing the finished product loaded on the discharge cover with the discharge guide using the discharge cylinder. A method of simultaneous processing of a transfer machine for processing a cap-shaped material, further comprising the step. In the method of supplying, processing and discharging a transfer machine for processing a hollow cap material: By inserting the feed fixture for each process into the material for each process at the same time by a specific signal, the process-specific fixtures installed in the main shaft of one or more processing-process processing devices are opened to release the material for each process connected to the main shaft. Discharging the feed jig fitted by the feeding means at the same time to separate the processed material from the main shaft by the feeding means; After the discharging step, if the supply jig for each process into which the material for each process is inserted backwards at the same time, the conveying means is operated to transfer the supply jig fitted with the material for each process to the set position corresponding to the next processing device for each process. A transfer step; After the conveying step, the feed means is operated to push the material fitted into the respective feed fixtures into the process-specific fixtures installed on the processing-side spindles of the respective processing devices. A supply step of simultaneously retracting the supply tool for each process so as to be separated from the supply tool and the material for each process by reactivating the supply means when caught by the fixture for each process; A processing step in which the material is bitten by the process-specific fasteners and rotates together with the main shaft, and the process-specific tool assemblies are respectively installed at positions capable of processing the material bitten by the process-specific fasteners and simultaneously processed according to one or more predetermined processes; A step of returning the supply tool by process back to the material supply position at the same time by the transfer means after the supply tool for each process retreats at the same time through the supplying step; A feeding step of pushing the raw material into the first feeding jig by the feeding means such that the opening of the raw material sequentially introduced from the outside in the initial raw material feeding position is inserted into the first feeding jig at the same time as the discharge step; Between the processes that need to change the processing direction, when the supply step is completed after the specific process, the transfer table is advanced, and supplemented by this, a separate supply cylinder installed on the transfer table operates to insert the material inserted into the feed fixture. And a separate bite cylinder is operated to bite and fix the material in the opposite direction to the transfer table, and when the material is dropped in front of the load bar connected to the supply cylinder as it is through the guide, the supply cylinder is operated to Inverting at least one material processing direction supplied by the rod bar to the collet chuck provided in the transfer table side direction; After the final process is completed, the discharging step is automatically discharged by the spring force of the stopper mounted in the collet chuck at the same time to release the finished product of the collet chuck, the discharge cover equipped with a donut type electromagnet so that the product does not pop out And a final discharge step of elevating the finished product loaded on the discharge cover with a discharge guide by using a discharge cylinder and then raising the upper portion without interference with the collet chuck assembly by a moving cylinder; Simultaneous machining of transfer machines for processing cap-shaped materials. In a transfer machine which simultaneously performs a multi-stage machining process using the method of claim 5: At least one processing device installed for each material processing process having the fixture assembly and the tool assembly for processing the rotating material into a desired shape to bury the material and rotate the spindle together; A transfer table in which the at least one supply jig is spaced apart in a conveying direction; Transfer means for reciprocating the transfer table to a set position such that each of the feed fixtures corresponds to a position of the processing apparatus for each process; And a supply means for reciprocating the transfer table provided with the feed fixture forward and backward to the processing apparatus side. Transfer machine for processing hollow caps 7. The hollow cap material according to claim 6, further comprising a feeding means for pushing the material into the first supply jig so that the opening of the material sequentially input from the outside is inserted into the first supply jig installed in the transfer table. Transfer machine for processing The collet chuck according to claim 6, wherein the fastener is a collet chuck provided with a collet which expands or contracts to fix the material to be gripped. With a pull bar installed in the main shaft coupled to the collet chuck and the pull bar to push and pull the pull bar to shrink or expand the collet chuck and the main shaft to keep the material in a predetermined position to prevent the length of the material is shortened by pulling the collet chuck A transfer machine for processing material in the form of a hollow cap, comprising a rotating stopper. 9. The transfer machine of claim 8, wherein the stopper further includes a bar supported by an elastic body to push the material in the discharge step of the final process in which the final workpiece is produced. According to claim 6, In order to smoothly change the processing direction of the material, it is arranged on the other side of the separate supply cylinder and the guide to receive the bite material by the bite cylinder and bite cylinder to fix the supplied material and drop it A transfer machine for processing a blank cap-shaped material further comprising an inverting device including a separate supply cylinder installed at the end of the guide. The method of claim 6, wherein in the final discharge step of discharging the final workpiece, further comprising a discharge cover attached to the electromagnet that can stably receive the discharged workpiece and the discharge means for pushing the final workpiece contained in the discharge cover Transfer machine for processing blank cap-type materials. 7. The hollow cap according to claim 6, wherein the support of the feed fixture is supported by an elastic body to allow the top, bottom, left and right clearances of the feed or discharge tool to absorb an incorrect alignment with the material. Transfer machine for processing form materials. The method of claim 12, wherein the cap including a valve for controlling the flow rate of the medium flowing into the cylinder of the transfer means when the transfer table reaches the transfer setting position, the projection provided on the transfer table attached to the upper portion of the valve The flow control device for adjusting the flow rate by turning the handle of the control table and the shock absorber to detect the proximity to the transfer limit of the transfer table to reduce the transfer speed of the transfer table in advance and the stopper for maintaining the transfer limit of the transfer table in the transfer A transfer machine for processing a cap-shaped material, which is installed on a table. In using the method of claim 5, the collet chuck assembly is provided with a collet that expands or contracts to secure the material to be gripped. A stopper for holding the material at a predetermined position to prevent the length of the material from being shortened by pulling the collet chuck by pulling and pulling the pull bar and the pull bar installed in the main shaft to which the collet chuck is coupled. And the stopper is coupled to the intermediate shaft wall to rotate with the main shaft. 15. The collet chuck assembly according to claim 14, wherein the stopper further comprises a bar supported by an elastic body inside the stopper to push out the material. In using the method of claim 5, the supply jig includes a housing which is supported by an elastic body around the supply jig so as to absorb an incorrect alignment with the material to allow the top, bottom, left and right clearances of the supply jig, and to accommodate the elastic body. Supply jig assembly.