JP2005262354A - Workpiece cutting tool and workpiece cutting processing line - Google Patents

Workpiece cutting tool and workpiece cutting processing line Download PDF

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Publication number
JP2005262354A
JP2005262354A JP2004075953A JP2004075953A JP2005262354A JP 2005262354 A JP2005262354 A JP 2005262354A JP 2004075953 A JP2004075953 A JP 2004075953A JP 2004075953 A JP2004075953 A JP 2004075953A JP 2005262354 A JP2005262354 A JP 2005262354A
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Japan
Prior art keywords
workpiece
jig
cutting
machine
processing
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JP2004075953A
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Japanese (ja)
Inventor
Hideaki Inoue
Masaya Kataoka
Jiro Nakagawa
Seiji Yamamoto
二郎 中川
秀昭 井上
誠司 山本
正也 片岡
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Fuso Engineering Corp
Mitsubishi Fuso Truck & Bus Corp
ふそうエンジニアリング株式会社
三菱ふそうトラック・バス株式会社
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Application filed by Fuso Engineering Corp, Mitsubishi Fuso Truck & Bus Corp, ふそうエンジニアリング株式会社, 三菱ふそうトラック・バス株式会社 filed Critical Fuso Engineering Corp
Priority to JP2004075953A priority Critical patent/JP2005262354A/en
Publication of JP2005262354A publication Critical patent/JP2005262354A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To largely improve processing accuracy of a workpiece, by largely enhancing attaching-detaching performance of the workpiece to a processing machine. <P>SOLUTION: This workpiece cutting tool holds the workpiece 5 processed while rotating by the processing machine 6; and has a first tool 2 having a shaft part 12 inserted into a first hole part formed in the processing center C<SB>1</SB>of the workpiece 5, a second tool 3 for forming a second hole part capable of inserting the shaft part 12, and a nut 4 engageable with the shaft part 12. The shaft part 12 is inserted into the first hole part and the second hole part, and is then formed into an assembly with the workpiece 5 by engaging the nut 4 with the shaft part 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a workpiece cutting jig for holding a workpiece to be processed while being rotated by a processing machine, and a workpiece cutting processing line for processing the workpiece while rotating the workpiece.
2. Description of the Related Art Conventionally, for example, there is a technique of fixing a work to a processing machine with a jig and rotating the work with a processing machine to cut, such as a lathe or a hobbing machine. Among these, the technique of the following patent document 1 is mentioned as an example which shows a hobbing machine.
JP 11-48078 A
However, in a general hobbing machine as shown in the technique of Patent Document 1, it is necessary to assemble the hobbing jig and the work every time the work is exchanged, and when the work is exchanged, When the shape and size are different, it is necessary to replace the jig in accordance with the workpiece, and there is a problem that time and labor are required for this work.
In addition, every time the jig and the workpiece are assembled, there is a problem that the rotation center is shifted between the hobbing machine and the jig.
Such a problem will be described in detail by taking a general hobbing machine 100 as an example. As shown in FIG. 4, a first jig 102 is fixed on the work table 101. A work 103 is placed on the upper end, and the second jig 104 is in contact with the work 103 from above.
In this way, the workpiece 103 is fixed to the hobbing machine 100 by the workpiece 103 being sandwiched between the first jig 102 and the second jig 104.
Among them, it is to rotate about an axis of rotation C 100 by a motor the work table 101 (not shown).
Further, the second jig 104 has a stem 106 extending downward, and the stem 106 is strongly pulled downward by a hydraulic cylinder (not shown), whereby the first jig 102 and the second jig 104 are connected to each other. The workpiece 103 can be strongly held between the two.
Further, a center hole 108 is formed at the upper end of the second jig 104, and the center 107 is fitted into the center hole 108 so that the upper end of the second jig 104 is rotatably supported. There when rotating, the first jig 102, the workpiece 103 and the second jig 104 is adapted to not offset from the rotation center C 100.
Therefore, when the work table 101 rotates around the rotation center C 100 , the first jig 102 and the second jig 104 rotate around the rotation center C 100 in accordance with the rotation of the work table 101, work 103 held by the jig 102 and second jig 104 also naturally with the rotation of the work table 101 rotates around the center of rotation C 100, a work 103 is cut by the hob (not shown) of the gear Teeth are formed.
  Further, when removing the workpiece 103 from the hobbing machine 100, first, the holding of the stem 106 by the hydraulic cylinder is released, and the center 107 fitted in the center hole 108 is moved upward. Thereafter, the second jig 104 is pulled upward to separate the second jig 104 and the first jig 102, and the workpiece 103 that has been sandwiched between the second jig 104 and the first jig 102. Remove. In addition, when attaching the workpiece | work 103 to a jig | tool, it works in the procedure contrary to the above-mentioned procedure.
  However, for example, when the workpiece 103 is cut by such a general hobbing machine 100, the workpiece 103 is removed from the hobbing machine 100, and then the workpiece 103 is attached to the hobbing machine 100 and then cut again. Since the assembly work of the 1st jig | tool 102, the 2nd jig | tool 104, and the workpiece | work 103 is needed again, a man-hour will increase. In particular, when exchanging with workpieces having different shapes and sizes, the jigs 102 and 104 need to be exchanged in accordance with the workpieces, which further increases the man-hours.
Further, the rotation center axis of the first jig 102, the second jig 104, and the work 103 in the previous work, and the rotation center axis of the first jig 102, the second jig 104, and the work 103 in the current work. As a result, a minute deviation occurs between the two and the cutting accuracy of the workpiece 103 is lowered.
On the other hand, for example, in a processing line composed of a plurality of processing machines, such as a processing line composed of a first hobbing machine and a second hobbing machine, the workpiece was cut into a rough shape by the first hobbing machine. When the workpiece is later removed from the first hobbing machine, and then the workpiece is assembled to the second hobbing machine and cut with high accuracy, the first hobbing machine is assembled with the first jig and the workpiece. Since the removal work occurs, and further, the assembly / removal work of the second jig and the work occurs in the second hobbing machine, it still takes time and a lot of man-hours.
Further, a fine shift occurs between the first hobbing jig and the rotation center axis of the workpiece and the second hobbing jig and the rotation center axis of the workpiece, and the final cutting accuracy of the workpiece is determined. Will fall.
The present invention has been devised in view of such a problem, and can significantly improve the work detachability with respect to a processing machine and can greatly improve the work machining accuracy. The purpose is to provide a processing line.
  In order to achieve the above object, a workpiece cutting jig of the present invention (Claim 1) is a workpiece cutting jig for holding a workpiece to be processed while being rotated by a processing machine, and is provided at the processing center of the workpiece. A first jig having a shaft portion inserted through the formed first hole portion and a second hole portion through which the shaft portion can be inserted are formed, and the relative rotation with the workpiece is restricted. A jig and a nut that can be screwed into the shaft portion are inserted. The shaft portion is inserted into the first hole portion and the second hole portion, and then the nut is screwed into the shaft portion. Thus, it is configured to be assembled with the workpiece.
Moreover, the workpiece cutting jig of the present invention described in claim 2 is configured so that the center of the shaft portion and the center of the first hole portion coincide with each other in the content of claim 1. It is a feature.
The workpiece cutting jig of the present invention according to claim 3 is characterized in that, in the content of claim 2, the center of the shaft portion is configured to coincide with the rotation center of the processing machine. It is said.
Moreover, the workpiece cutting jig of the present invention according to claim 4 is the content according to any one of claims 1 to 3, wherein the workpiece is composed of a plurality of workpieces having different sizes or shapes, The first jig and the second jig are formed corresponding to the size or shape of the work for each work.
Moreover, the jig | tool for workpiece cutting of this invention of Claim 5 WHEREIN: In the content of any one of Claims 1-4, this 2nd jig | tool is inscribed with respect to this 1st hole part. And a collet base in which the second hole is formed, and a second cup fixed to the collet base and detachably fitted to a first coupling fixed on the rotary table of the processing machine It is characterized by having a ring.
  According to a sixth aspect of the present invention, there is provided the workpiece cutting jig according to the fifth aspect, wherein the collet base is formed in a tapered shape so that the diameter decreases toward the first jig. A first collet base, and a second collet base having a tapered inner peripheral surface corresponding to the tapered outer peripheral surface of the first collet base and formed so that the outer peripheral surface is in contact with the inner peripheral surface of the first hole. And the outer diameter of the second collet base is increased as the first collet base is moved in the first jig direction.
A workpiece cutting jig according to a seventh aspect of the present invention is the content according to any one of the first to sixth aspects, wherein the workpiece is between the first jig and the rotary table of the processing machine. The workpiece is clamped and the shaft portion is pulled by the processing machine, whereby the assembled workpiece is fixed to the processing machine.
Moreover, the workpiece cutting jig of the present invention according to claim 8 is the hobbing machine in which the processing machine forms gear teeth by cutting, in the content of any one of claims 1 to 7, A deburring device that deburrs teeth formed by the hobbing machine, a gear shaper that forms a serration portion formed on the gear by cutting, and a shaving machine that finishes the tooth surface of the tooth. It is a feature.
  In order to achieve the above object, a workpiece cutting processing line according to the present invention (claim 9) is a workpiece cutting processing line having a plurality of processing steps for processing while rotating a workpiece held by a jig. The jig is a workpiece cutting jig according to any one of claims 1 to 8, wherein a machining machine for machining the workpiece is provided for each machining step, and the plurality of machining machines are all The workpiece cutting jig is configured to be detachable in an assembled state.
  The workpiece cutting processing line of the present invention according to claim 10 is the content of claim 9, wherein the workpiece is assembled to the workpiece cutting jig before the first processing step of the workpiece. And an assembly device for removing the workpiece from the jig and placing the workpiece after the final machining process of the workpiece is completed, and the stocker is disposed in the vicinity of the assembly device. It is a feature.
  The workpiece cutting processing line of the present invention according to claim 11 is formed by the hobbing machine in which the processing machine forms gear teeth by cutting, and the hobbing machine. The deburring device that removes the burrs of the teeth, the gear shaper that forms the serrations formed on the gears by cutting, and the shaving machine that finishes the tooth surfaces of the teeth.
According to the workpiece cutting jig of the present invention, the first jig, the second jig, and the workpiece are assembled, thereby greatly improving the detachability of the workpiece with respect to the processing machine and increasing the machining accuracy of the workpiece. It can be greatly improved. (Claim 1)
Further, even when the assembled workpiece is attached to and detached from the processing machine, the center of the first hole portion (processing center) of the workpiece and the center of the shaft portion of the first jig coincide with each other. Since it is comprised, the fall of the processing accuracy resulting from the shift | offset | difference of a workpiece | work and a 1st jig | tool can be abolished, and the processing accuracy of a workpiece | work can be improved significantly. (Claim 2)
In addition, since the center of the shaft portion of the first jig (that is, the center of the workpiece) is configured to coincide with the rotation center of the processing machine, the workpiece is cut with the center of the workpiece biased. It is possible to avoid such a situation and greatly improve the machining accuracy of the workpiece. (Claim 3)
Even when the sizes and shapes of the workpieces are different, the first jig and the second jig are formed corresponding to the sizes and shapes of the workpieces. It can be assembled as appropriate and attached to the processing machine. (Claim 4)
Moreover, since the 2nd coupling of a 2nd jig | tool can be detachably fitted with respect to the 1st coupling fixed to the rotary table of the processing machine, this 2nd jig | tool is attached to the processing machine. Relative rotation between the rotary table and the second jig is restricted simply by placing it on the first coupling, and the second jig (that is, the assembled workpiece) is rotated in accordance with the rotation of the rotary table. Can be made. (Claim 5)
Further, when the first collet base is moved in the first jig direction and the outer diameter of the second collet base is increased, the second collet base strongly contacts the inner peripheral surface of the first hole portion of the workpiece. Thus, the workpiece can be securely fixed. (Claim 6)
In addition, when the shaft portion of the first jig is pulled by the processing machine, the work is strongly held between the first jig and the rotary table of the processing machine, and the assembled work is fixed to the processing machine. Can do. (Claim 7)
Moreover, even if the processing machine is a hobbing machine that forms gear teeth by cutting, or a deburring device that removes burrs of teeth formed by the hobbing machine, the serration part formed on the gears is cut by cutting. Even the gear shaper to be formed may be a shaving machine that finishes the tooth surface of the teeth. (Claim 8)
On the other hand, according to the workpiece cutting processing line of the present invention, a plurality of processing machines are provided for each step, and each of these processing machines is a workpiece cutting jig according to any one of claims 1 to 8. Since it is configured to be detachable while being assembled, it is possible to greatly improve the detachability of the workpiece with respect to the processing machine and greatly improve the machining accuracy of the workpiece. (Claim 9)
In addition, a stocker is provided for placing the workpiece in the assembled state after the final machining process of the workpiece, and this stocker is disposed in the vicinity of an assembly device for assembling the workpiece with respect to the workpiece cutting jig. Therefore, the work for assembling the work and the work for disassembling the assembled work can be performed together in the vicinity of the stocker. (Claim 10)
The processing machine also includes a hobbing machine that forms gear teeth by cutting, a deburring device that deburrs teeth formed by the hobbing machine, a gear shaper that forms serrations formed on the gear by cutting, and a tooth And a shaving machine that finishes the tooth surface of the serration part. (Claim 11)
An embodiment of a workpiece cutting jig and a workpiece cutting processing line according to the present invention will be described. Both FIG. 1 and FIG. 2 are schematic cross-sectional views showing the configuration of the workpiece cutting jig, and FIG. FIG. 2 shows the state after assembly, and FIG. 3 is a schematic view showing a workpiece cutting processing line.
As shown in FIG. 1, the jig 1 is mainly composed of a clamper (first jig) 2, a collet base (second jig) 3, and a nut 4. As shown in FIG. 5 can be attached to and detached from the processing machine 6. In this description using FIG. 1 and FIG. 2, a case where the processing machine 6 is an NC hobbing machine (hobbing machine) 6 will be described as an example.
Teeth 28 are cut on the outermost periphery of the workpiece 5 by a hob (not shown) of the NC hobbing machine 6, and a serration portion 29 is a gear shaper 34 (other processing machine) on the inner peripheral side of the teeth 28. 1 and FIG. 2).
As shown in FIG. 2, the NC hobbing machine 6 is provided with a work table (rotary table) 7 that is rotated by a motor (not shown), a center 8 that rotatably supports the upper end of the jig 1, and the like. On the work table 7, a first coupling 10 that can be fitted with a second coupling 9 provided at the lower end of the jig 1 is fixed. The coupling 11 composed of the first coupling 10 and the second coupling 9 is referred to as a Kirbic coupling. By placing the second coupling 9 on the first coupling 10, the mutual coupling is achieved. with the center axis C 1 can be matched, so that the mutual relative rotation is restricted.
Further, a third hole portion 14 into which a shaft portion 12 (described later) of the jig 1 is inserted is formed in the work table 7, and a hydraulic cylinder (not shown) is provided below the third hole portion 14. The shaft portion 12 can be pulled downward with a force of several tons (2 to 3 tons in this embodiment).
As shown in FIG. 1, the clamper 2 of the jig 1 extends downward from the head portion 16 in which a center hole 15 into which the center 8 of the NC hobbing machine 6 is inserted is formed. It is mainly composed of a cylindrical shaft portion 12. Among these, the thread groove 17 is formed in the outer periphery of the axial part 12, and the nut 4 can be screwed together.
  Further, on the lower end side of the head portion 16, a first contact portion 18 that comes into contact with one end side of the work 5 from above and a second contact portion 19 that comes into contact with one end side of the collet base 3 from above are provided. ing. The first contact portion 18 is detachably attached to the head portion 16, and a disc spring 13 is interposed between the second contact portion 19 and the head portion 16. Thereby, even if the upper end (one end) of the collet base 3 and the upper end (one end) of the workpiece are different in height and have a step, the step between the collet base 3 and the workpiece 5 is permitted. It can come into contact with each other reliably from above.
The collet base 3 is a cylindrical member composed of a first collet base 20 and a second collet base 21, and the first collet base 20 and the second collet base 21 include the clamper 2. A second hole 22 through which the shaft 12 is inserted is formed.
Among these, the first collet base 20 is a conical member formed in a tapered shape so as to gradually become a small diameter toward the clamper 2 (that is, upward in the present embodiment), and the workpiece 5 A third abutting portion 23 that abuts on the other end side of the lens is provided. In addition, the outer peripheral surface 24 formed in the taper shape of this 1st collet base 20 is called a taper outer peripheral surface.
Further, the above-described second coupling 9 is fixed to the lower end of the first collet base 20, and the second coupling 9 is placed on the rotary table 7 of the NC hobbing machine 6 as shown in FIG. It can be detachably fitted to the fixed first coupling 7.
On the other hand, the second collet base 21 is a member having a cylindrical outer shape, and a tapered inner peripheral surface 25 having a shape corresponding to the tapered outer peripheral surface 24 of the first collet base 20 is formed therein. The outer peripheral surface 26 of the two collet base 21 comes into contact with the inner peripheral surface of the first hole portion 27 formed at the processing center C 1 of the workpiece 5.
With such a configuration, as the first collet base 20 is displaced in the direction of the clamper 2 (upward in the present embodiment), the outer diameter of the second collet base 21 is enlarged, and the workpiece 5 and the collet base 3 are expanded. And the center of the first hole 27 and the center of the collet base 3 coincide with each other.
The above-described clamper 2 and collet base 3 are formed by designing a plurality of types according to the size and shape of the work 5 in advance, thereby being able to handle various works. Yes.
Further, the nut 4 is screwed to the shaft portion 12 of the clamper 2 to assemble and fix the jig 1 and the work 5 as shown in FIG.
That is, when the nut 4 is fastened to the shaft portion 12 of the clamper 2, the collet base 3 is pushed upward, and the collet base 3 is strongly pressed between the second contact portion 19 of the clamper 2 and the nut 4. By being pinched, the first collet base 20 is relatively displaced upward and the second collet base 21 is relatively displaced downward. As a result, the outer diameter of the second collet base 21 is enlarged and formed on the workpiece 5. The first hole portion 27 is inscribed strongly.
At this time, the third abutting portion 23 of the first collet base 20 abuts against the other end of the workpiece 5 from below, and the first abutting portion 18 provided on the head portion 16 of the clamper 2 serves as the workpiece. 5, the workpiece 5 is strongly held between the third contact portion 23 and the first contact portion 18.
Next, a processing line provided with a plurality of processing machines that can be processed while the jig 1 is assembled (see reference numeral 30 in FIG. 2) will be described. As shown in FIG. A processing machine for processing a workpiece is provided for each processing step.
  This machining line 31 includes an NC hobbing machine (hobbing machine) 6 for forming the teeth 28 of the gear 5 as a workpiece by cutting, a deburring device 33 for removing burrs on the teeth 28 formed by the NC hobbing machine 6, and the gear 5. A gear shaper 34 that forms the serration portion 29 formed by cutting, a shaving machine 35 that finishes the tooth surface of the tooth 28, an oil hole forming device 45 that forms a lubricating oil hole (not shown) in the gear 5, and the gear 5. A cleaning machine 36 for cleaning is mainly provided.
  That is, the NC hobbing machine 6 is used in the first gear cutting process (first processing process), the deburring device 33 is used in the deburring process (second processing process), and the gear shaper is used in the second gear cutting process (third processing process). 34, the shaving machine 35 in the tooth surface finishing step (fourth processing step), the oil hole forming device 45 in the drilling step (fifth processing step), and the cleaning step (sixth processing step; final step). Each of the washing machines 36 is used. Since the functions of these processing machines are already well-known devices, a detailed description thereof is omitted, but all the processing machines are held by the assembled jig 1 as shown in FIG. The workpiece 5 can be processed in an assembled state.
Further, the processing line 31 includes a rough material stocker 37, an NC lathe 38, a heat treatment tray base 39, a finished product stocker (stocker) 40, a jig assembling / disassembling device 41, a workpiece attaching / detaching robot 42, and a runout inspection device 43. It is provided.
Among these, the coarse material stocker 37 stores the coarse material, and the NC lathe 38 cuts the coarse material into a predetermined shape. In the present embodiment, the rough material after the machining process by the NC lathe 38 is handled as a “work”, and the preliminary process by the NC lathe 38 is called a machining process.
The workpiece attaching / detaching robot 42 is a device for attaching the workpiece 5 to the collet base 3.
Further, the jig assembling / disassembling apparatus 41 inserts the shaft portion 12 of the clamper 2 into the first hole portion 27 of the workpiece 5 and the second hole portion 22 of the collet base 3 to thereby move the clamper 2, the workpiece 5, the collet base. 3, and the nut 4 is screwed onto the shaft portion 12 of the clamper 2 integrated by the workpiece attaching / detaching robot 42, whereby the workpiece 5 is held by the jig 1 and assembled.
Each of the workpiece attaching / detaching robot 42 and the jig assembling / disassembling device 41 can also disassemble the assembly 30 in a procedure reverse to the above procedure. The jig assembling / disassembling device 41 is collectively referred to as an assembly device 44.
Further, the run-out inspection device 43 inspects whether or not the run-out width at the rotation center is less than or equal to the allowable range when the assembly 30 is rotated. Here, the run-out range exceeds the allowable range. The assembly work is performed again by the workpiece attaching / detaching robot 42 and the jig assembling / disassembling device 41.
The finished product stocker 40 takes out only the workpiece 5 from the assembly 30 and places the workpiece 5 on the assembly 30. In the vicinity of the assembly device 44 (that is, the workpiece attaching / detaching robot 42 and the jig assembling / disassembling device 41). It is arranged.
Further, the heat treatment tray mount 39 is not placed on the workpiece 5 (finished product) which is once placed on the finished product stocker 40 and then separated from the jig 1 by the workpiece attaching / detaching robot 42 and the jig assembling / disassembling device 41. A pedestal that is transported to a heat treatment step, and can be heat-treated with this heat treatment tray.
Since the workpiece cutting jig and the workpiece cutting processing line according to the present embodiment are configured as described above, the following operations and effects are achieved.
First, when assembling the jig 1 and holding the work 5 on the jig 1, the shaft assembly 12 of the clamper 2 is connected to the first hole 27 of the work 5 and the collet base 3 by the jig assembling / disassembling device 41. The nut 4 is inserted into the second hole portion 22 and screwed into the shaft portion 12 to be fastened. As a result, the collet base 3 is pushed upward, and the collet base 3 is strongly clamped between the second contact portion 19 of the clamper 2 and the nut 4, whereby the first collet base 20 is moved upward, The two collet bases 21 are relatively displaced downward, and as a result, the outer diameter of the second collet base 21 is enlarged and strongly inscribed in the first hole 27 formed in the workpiece 5.
  At this time, the third abutting portion 23 of the first collet base 20 abuts against the other end of the workpiece 5 from below, and the first abutting portion 18 provided on the head portion 16 of the clamper 2 serves as the workpiece. 5, the work 5 is strongly held between the third contact portion 23 and the first contact portion 18. Thereby, the workpiece | work 5 is assembled in the jig | tool 1 and assembled (refer FIG. 2).
The jig assembling / disassembling apparatus 41 and the workpiece attaching / detaching robot 42 can be disassembled and the jig 1 and the workpiece 5 can be separated by operating in a procedure reverse to the above procedure.
Further, in the machining line 31 shown in FIG. 3, first, the coarse material (not shown) taken out from the coarse material stocker 37 is cut into a predetermined shape by the NC lathe 38 before entering the first machining process. Thereafter, as described above, the workpiece 5 is assembled in a state in which the workpiece 5 is incorporated in the jig 1 by the workpiece attaching / detaching robot 42 and the jig assembling / disassembling apparatus 41.
Then, by the inspection apparatus 43 deflection, amplitude of the center of rotation C 1 when rotating the assembly 30 is checked whether it is below the allowable range, only the width fluctuation in this step is within the permissible range It is sent to the first processing step of the next step.
Thereafter, in the first gear cutting process (first machining process), teeth 28 are formed on the workpiece (gear) 5 by cutting the NC hobbing machine 38, and in the deburring process (second machining process), the burrs are removed. The removal device 33 removes burrs of the teeth 28 formed by the NC hobbing machine 6.
In the second gear cutting step (third processing step), the serration portion 29 formed on the gear 5 is formed by cutting by the gear shaper 34. In the tooth surface finishing step (fourth processing step), the shaving machine 35 is used. The tooth surface of the tooth 28 is finished.
Thereafter, in the drilling step (fifth processing step), an oil hole for lubrication is formed in the gear 5 by the oil hole forming device 45, and in the cleaning step (sixth processing step; final processing step), by the cleaning machine 36, The gear 5 that has undergone the drilling process is cleaned.
  As described above, according to the workpiece cutting jig according to the present embodiment, the axis of the clamper 2 with respect to the first hole portion 27 formed in the workpiece 5 and the second hole portion 22 formed in the collet base 3. The part 12 is inserted, and the nut 4 is screwed to the shaft part 12 so that the clamper 2, the collet base 3 and the work 5 are integrated, thereby greatly improving the detachability of the work 5 with respect to the processing machine. The machining accuracy of the workpiece 5 can be greatly improved.
Further, the jig 1 the work 5 is held (i.e., assembly 30) even when it is attached to and detached from the processing machine, the shaft portion of the center C 1 and the clamper 2 of the first hole portion 27 of the workpiece 5 Since the center C 1 of 12 coincides with the center C 1 , the processing accuracy of the workpiece 5 can be greatly improved by eliminating the decrease in processing accuracy caused by the deviation between the workpiece 5 and the clamper 2.
Further, since the center C 1 of the shaft portion 12 of the clamper 2 (that is, the center of the workpiece) and the rotation center C 1 of the rotary table of the processing machine coincide with each other, the center of the workpiece 5 is biased. Thus, a situation in which the workpiece 5 is cut can be avoided, and the machining accuracy of the workpiece 5 can be greatly improved.
Further, even when the workpiece 5 is composed of a plurality of workpieces, and the sizes and shapes of these workpieces are different, the size and shape of the clamper 2 and the collet base 3 corresponding to the sizes and shapes of the workpieces. Therefore, a wide variety of workpieces can be assembled as appropriate and attached to or removed from the processing machine.
In addition, the second coupling 9 of the collet base 3 is detachably fitted to the first coupling 10 fixed to the rotary table 7 of the processing machine. By simply placing the collet base 3 provided at the lower end on the first coupling 10 of the processing machine, the relative rotation between the rotary table 7 and the collet base 3 is restricted, and the assembly 30 is rotated in accordance with the rotation of the rotary table 7. Can be made.
  Further, since the outer peripheral surface 26 of the second collet base 21 is in contact with the inner peripheral surface of the first hole portion 27 formed in the workpiece 5, the first collet base 20 is moved in the direction in which the first jig 21 is positioned. When the outer diameter of the second collet base 21 is increased by moving the second collet base 21, the second collet base 21 comes into strong contact with the inner peripheral surface of the first hole portion 27 of the work 5, and thus the work 5 is securely attached. Can be fixed.
In addition, the shaft portion 12 is pulled from the clamper 2 in the direction in which the rotary table 7 is positioned by a hydraulic cylinder (not shown) of the processing machine, whereby the workpiece 5 is moved between the clamper 2 and the rotary table 7 of the processing machine. The assembly 30 can be firmly fixed to the processing machine.
The processing machine is a deburring device 33 that removes burrs on the teeth 28 formed by the NC hobbing machine 6 even if the NC hobbing machine 6 forms the teeth 28 of the gear (work) 5 by cutting. Alternatively, it may be a gear shaper 34 that forms the serration portion 29 formed on the gear 5 by cutting, or may be a shaving machine 35 that finishes the tooth surface of the tooth 28. The processing accuracy of the workpiece 5 can be greatly improved.
  Further, as described above, according to the workpiece cutting processing line of the present invention, a plurality of processing machines are provided for each step, and each of these processing machines keeps the workpiece cutting jig 1 in the assembled state. Therefore, the work 5 can be removably attached to the processing machine, and the work accuracy of the work 5 can be greatly improved.
  The finished product stocker 40 takes out only the workpiece 5 from the assembly 30 and places the workpiece 5 on the assembly stocker 44 (the workpiece attaching / detaching robot 42 and the jig assembling / disassembling device 41). Therefore, the work of assembling the workpiece into five assemblies before the first machining step and the operation of disassembling the assembled workpiece 30 can be performed collectively in the vicinity of the finished product stocker 40. In other words, it is not necessary to separately provide the assembly device 44 in both the step of assembling the workpiece 5 and the step of disassembling the assembly 30, which can contribute to cost reduction.
  Further, the processing machine has an NC hobbing machine 6 that forms the teeth 28 of the gear 5 by cutting, a deburring device 33 that deburrs the teeth 28 formed by the NC hobbing machine 6, and a serration portion formed on the gear 5. In any of the processing machines, the gear shaper 34 formed by cutting 28 and the shaving machine 35 for finishing the tooth surface of the tooth 28, the detachability of the work 5 is greatly improved and the machining accuracy of the work 5 is greatly improved. Can be improved.
  Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and various modifications can be made without departing from the spirit of the present invention.
It is typical sectional drawing which shows the structure of the jig | tool for workpiece cutting which concerns on one Embodiment of this invention, Comprising: Before being assembled, it shows. It is typical sectional drawing which shows the structure of the jig | tool for workpiece | work cutting which concerns on one Embodiment of this invention, Comprising: The assembled state is shown. It is a mimetic diagram showing the processing line for work cutting concerning one embodiment of the present invention. It is typical sectional drawing which shows the jig | tool of a general hobbing machine.
Explanation of symbols
2 Clamper (first jig)
3 Collet base (second jig)
4 Nut 5 Workpiece (gear)
6 NC hobbing machine (hobbing machine; processing machine)
7 Work table (rotary table)
DESCRIPTION OF SYMBOLS 9 2nd coupling 10 1st coupling 11 Curbic coupling 12 Shaft part 20 1st collet base 21 2nd collet base 22 2nd hole part 27 1st hole part 29 Serration part 30 Assembly 33 Deburring apparatus (processing machine) )
34 Gear shaper (processing machine)
35 Shaving machine (processing machine)

Claims (11)

  1. A workpiece cutting jig for holding a workpiece to be processed while being rotated by a processing machine,
    A first jig having a shaft portion that is inserted into a first hole portion formed at the processing center of the workpiece;
    A second jig in which a second hole portion through which the shaft portion can be inserted is formed and relative rotation with the workpiece is restricted;
    A nut that can be screwed onto the shaft,
    The shaft portion is inserted into the first hole portion and the second hole portion, and then the nut is screwed into the shaft portion to be assembled with the workpiece. A jig for cutting workpieces.
  2. The workpiece cutting jig according to claim 1, wherein the center of the shaft portion and the center of the first hole portion coincide with each other.
  3. The workpiece cutting jig according to claim 2, wherein the center of the shaft portion is configured to coincide with the rotation center of the processing machine.
  4. The workpiece is composed of a plurality of workpieces having different sizes or shapes,
    The said 1st jig | tool and this 2nd jig | tool are each formed corresponding to the magnitude | size or shape of this workpiece | work for every workpiece | work, The any one of Claims 1-3 characterized by the above-mentioned. Work cutting jig.
  5. The second jig is
    A collet base that is inscribed in the first hole and in which the second hole is formed;
    2. A second coupling fixed to the collet base and removably fitted to a first coupling fixed on a rotary table of the processing machine. The workpiece cutting jig according to any one of? 4.
  6. The collet base is
    A first collet base formed in a tapered shape so as to have a small diameter toward the first jig;
    A second collet base having a tapered inner peripheral surface corresponding to the tapered outer peripheral surface of the first collet base and formed so that the outer peripheral surface is in contact with the inner peripheral surface of the first hole portion;
    6. The workpiece cutting machine according to claim 5, wherein the outer diameter of the second collet base is increased as the first collet base is moved in the first jig direction. jig.
  7. The workpiece is sandwiched between the first jig and the rotary table of the processing machine,
    The workpiece cutting jig according to claim 1, wherein the assembled workpiece is fixed to the processing machine by the shaft portion being pulled by the processing machine.
  8. The processing machine is
    A hobbing machine that forms gear teeth by cutting;
    A deburring device for deburring teeth formed by the hobbing machine;
    A gear shaper that forms a serration portion formed on the gear by cutting;
    The workpiece cutting jig according to any one of claims 1 to 7, wherein the jig is a shaving machine for finishing a tooth surface of the tooth.
  9. In the workpiece cutting processing line that has multiple processing steps to process while rotating the workpiece held by the jig,
    The jig is a workpiece cutting jig according to any one of claims 1 to 8,
    A machining machine for machining the workpiece is provided for each machining process, and each of the plurality of machining machines is configured to be detachable while the workpiece cutting jig is in an assembled state. A machining line for cutting workpieces.
  10. An assembly device for assembling the workpiece with respect to the workpiece cutting jig before the first machining step of the workpiece;
    After completion of the final machining process of the workpiece, a stocker for removing the workpiece from the jig and placing the workpiece is provided,
    The workpiece cutting processing line according to claim 9, wherein the stocker is disposed in the vicinity of the assembly device.
  11. The processing machine is
    A hobbing machine that forms gear teeth by cutting;
    A deburring device for removing deburring of teeth formed by the hobbing machine;
    A gear shaper that forms a serration portion formed on the gear by cutting;
    The workpiece cutting processing line according to claim 9, wherein the processing line is a shaving machine that finishes the tooth surfaces of the teeth and the serration portion.
JP2004075953A 2004-03-17 2004-03-17 Workpiece cutting tool and workpiece cutting processing line Pending JP2005262354A (en)

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JP2013202746A (en) * 2012-03-29 2013-10-07 Aisin Aw Co Ltd Rotation support jig for processing machine
JP2013226636A (en) * 2012-02-24 2013-11-07 Aisin Aw Co Ltd Rotation processing machine
JP2013226638A (en) * 2012-02-24 2013-11-07 Aisin Aw Co Ltd Rotation processing machine
CN103567784A (en) * 2013-10-31 2014-02-12 吴江永固纺配有限公司 Clamp
CN103600205A (en) * 2013-11-13 2014-02-26 中国北方车辆研究所 Face gear clamp manufacturing method
CN103706887A (en) * 2013-12-17 2014-04-09 陕西宝成航空仪表有限责任公司 Clamping tool for burring precision small modulus gear
KR20140100535A (en) * 2012-02-24 2014-08-14 아이신에이더블류 가부시키가이샤 Rotary machining device and rotary machining method
CN104162720A (en) * 2013-05-20 2014-11-26 山东交通学院 Gear shaft processing fixture
JP5633611B1 (en) * 2013-08-23 2014-12-03 アイシン・エィ・ダブリュ株式会社 Work support jig
CN104259584A (en) * 2014-09-15 2015-01-07 常州利普金属制品有限公司 Tensioning sleeve vehicle clamp
CN104400147A (en) * 2014-12-07 2015-03-11 重庆市璧山县振昌汽车配件有限公司 Clamping device for shaping gear of synchronizer synchronous lock ring
JP2015054365A (en) * 2013-09-10 2015-03-23 アイシン・エィ・ダブリュ株式会社 Work supporting jig for rotary machining machine, and work supporting jig attaching/detaching method in rotary machining machine
CN104493308A (en) * 2014-12-22 2015-04-08 无锡永凯达齿轮有限公司 Efficient hobbing clamp for small inner hole gears
CN104708117A (en) * 2015-03-19 2015-06-17 柳州市永益机械制造有限公司 Method for machining duplicate gears
CN105728862A (en) * 2014-12-10 2016-07-06 天津建筑机械厂 Hobbing machining tool for mechanical gearbox shifting gear of bulldozer
CN110625199A (en) * 2019-09-11 2019-12-31 宁波夏拓智能科技有限公司 Automatic gear hobbing machine

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KR20140100535A (en) * 2012-02-24 2014-08-14 아이신에이더블류 가부시키가이샤 Rotary machining device and rotary machining method
JP2013226636A (en) * 2012-02-24 2013-11-07 Aisin Aw Co Ltd Rotation processing machine
JP2013226638A (en) * 2012-02-24 2013-11-07 Aisin Aw Co Ltd Rotation processing machine
US9469004B2 (en) 2012-02-24 2016-10-18 Aisin Aw Co., Ltd. Rotation processing machine and rotation processing method
US9522433B2 (en) 2012-02-24 2016-12-20 Aisin Aw Co., Ltd. Rotation processing machine
KR101642207B1 (en) * 2012-02-24 2016-07-22 아이신에이더블류 가부시키가이샤 Rotary machining device and rotary machining method
JP2014061591A (en) * 2012-02-24 2014-04-10 Aisin Aw Co Ltd Rotation processing machine, and rotation processing method
KR20140098154A (en) * 2012-02-24 2014-08-07 아이신에이더블류 가부시키가이샤 Rotary machining device
KR101646428B1 (en) * 2012-02-24 2016-08-05 아이신에이더블류 가부시키가이샤 Rotary machining device
JP2013202746A (en) * 2012-03-29 2013-10-07 Aisin Aw Co Ltd Rotation support jig for processing machine
CN104162720A (en) * 2013-05-20 2014-11-26 山东交通学院 Gear shaft processing fixture
JP5633611B1 (en) * 2013-08-23 2014-12-03 アイシン・エィ・ダブリュ株式会社 Work support jig
JP2015054365A (en) * 2013-09-10 2015-03-23 アイシン・エィ・ダブリュ株式会社 Work supporting jig for rotary machining machine, and work supporting jig attaching/detaching method in rotary machining machine
CN103567784A (en) * 2013-10-31 2014-02-12 吴江永固纺配有限公司 Clamp
CN103600205A (en) * 2013-11-13 2014-02-26 中国北方车辆研究所 Face gear clamp manufacturing method
CN103600205B (en) * 2013-11-13 2015-11-18 中国北方车辆研究所 A kind of face gear fixture manufacture method
CN103706887A (en) * 2013-12-17 2014-04-09 陕西宝成航空仪表有限责任公司 Clamping tool for burring precision small modulus gear
CN104259584A (en) * 2014-09-15 2015-01-07 常州利普金属制品有限公司 Tensioning sleeve vehicle clamp
CN104400147A (en) * 2014-12-07 2015-03-11 重庆市璧山县振昌汽车配件有限公司 Clamping device for shaping gear of synchronizer synchronous lock ring
CN105728862A (en) * 2014-12-10 2016-07-06 天津建筑机械厂 Hobbing machining tool for mechanical gearbox shifting gear of bulldozer
CN104493308B (en) * 2014-12-22 2016-08-17 无锡永凯达齿轮有限公司 The little efficient gear-hobbing clamp of endoporus gear
CN104493308A (en) * 2014-12-22 2015-04-08 无锡永凯达齿轮有限公司 Efficient hobbing clamp for small inner hole gears
CN104708117A (en) * 2015-03-19 2015-06-17 柳州市永益机械制造有限公司 Method for machining duplicate gears
CN110625199A (en) * 2019-09-11 2019-12-31 宁波夏拓智能科技有限公司 Automatic gear hobbing machine

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