JP2005088082A - Method for adjusting fitting condition of drawing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a drawn product of high accuracy by adjusting the fitting condition of a die 20. <P>SOLUTION: A laser beam source 70 to radiate laser beams passing through a chuck 40 and a die 20 is provided. A puller 50 runs on a rail 60, and the optical axis 71 of the laser beam source 70 is adjusted so that the laser beams radiated from the laser beam source 70 are radiated at the center holding position at the chuck 40. The fitting condition of the die 20 is adjusted so that the reference machining axis (the die axis) of the die 20 is agreed with the adjusted optical axis 71 of the laser beams. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for adjusting a mounting state of a drawing tool such as a die in drawing processing on a workpiece such as a pipe or bar.

  Drawing of workpieces such as pipes and rods is generally performed by gripping the tip of the workpiece that has passed through a die with a chuck and running a puller to which the chuck is attached on a rail. In such a drawing process, it is known that defects such as bending occur in a molded product after drawing if the drawing axis and the axis of the die do not match. Conventionally, such adjustment of the drawing shaft is often performed based on the experience and intuition of craftsmen.

On the other hand, the following Patent Document 1 proposes a method of adjusting the extraction shaft using a light emitter such as a laser beam. In this Patent Document 1, a laser beam indicating the axis of a die is irradiated from a light emitter attached to the die, and a rail on which the chuck runs is adjusted so that the laser beam is irradiated to a light receiving jig attached to the chuck. It is like that.
Japanese Patent Laid-Open No. 10-216829

  However, if the adjustment of the drawing shaft is left to the experience and intuition of the craftsman, the adjustment accuracy differs depending on the operator, and the quality of the drawn product is not stable.

  Further, the method of Patent Document 1 has a problem that sufficient accuracy cannot be ensured. That is, a light emitter such as a laser light source is not always secured in terms of the angle and position of the light axis relative to its mounting jig, and is often displaced. For this reason, even if the light emitter is attached to the die as in Patent Document 1, light emitted from the light emitter may be displaced from the die axis in the first place. Moreover, in the above-mentioned Patent Document 1, since the light emitter is attached on the basis of the outer peripheral portion of the die, not the inner processed surface of the die, the position of the outer peripheral portion of the die with respect to the inner processed surface of the die and the variation in dimensional accuracy. However, the light emitted from the light emitter is displaced from the axis of the die. Furthermore, since the rail shaft is moved to adjust the pull-out shaft, there is a problem that a large-scale construction is required.

  An object of the present invention is to provide a means by which a highly accurately drawn product can be obtained.

The present invention provides the following means. That is,
[1] In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the attachment state of the drawing tool Is a method of adjusting
Irradiating light from the light emitter through the chuck and the drawing tool;
Running at least one of the puller and the light emitter on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method.

  [2] The method for adjusting the attachment state of the drawing tool according to [1], wherein the adjustment of the optical axis of the light emitter includes adjustment of the position and direction of the optical axis.

  [3] The method for adjusting the attachment position of the drawing tool according to item 1 or 2, wherein the light beam emitted from the light emitter is a laser beam.

  [4] The drawing tool mounting state adjusting method according to any one of the above items 1 to 3, wherein the chuck is provided with a chuck position target indicating the gripping reference position.

  [5] The method for adjusting an attachment state of the drawing tool according to the item 4, wherein the chuck position target is attached by being held by the chuck.

  [6] The drawing tool mounting state adjusting method according to any one of the preceding items 1 to 5, wherein the drawing tool is provided with a drawing tool position target indicating the processing reference position.

  [7] Any one of items 1 to 6 above, wherein the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter passes through a predetermined processing reference axis of the drawing tool. A method for adjusting the mounting state of the drawing tool according to claim 1.

  [8] The method for adjusting the attachment state of the drawing tool according to any one of items 1 to 7, wherein the adjustment of the attachment state of the drawing tool includes adjustment of an attachment position and adjustment of an attachment angle.

  [9] The method for adjusting an attachment state of the drawing tool according to any one of the above items 1 to 8, wherein the drawing tool is a die for processing an outer surface of a workpiece.

  [10] The method for adjusting the attachment state of the drawing tool according to any one of items 1 to 9, wherein the drawing tool is a plug for machining an inner surface of a cylindrical workpiece.

  [11] The method for adjusting the attachment state of the drawing tool according to any one of the above items 1 to 10, wherein the light emitter is arranged in front of the puller in a drawing direction.

[12] In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the attachment state of the drawing tool Is a method of adjusting
Irradiating a light beam passing through the chuck and the drawing tool from a light emitter disposed in front of the puller in the drawing direction;
Running at least one of the puller and the light emitter on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method.

  [13] The pulling tool mounting state adjusting method according to [11] or [12], wherein the puller is caused to travel on the rail when the optical axis of the light emitter is adjusted.

  [14] The method for adjusting the attachment state of the drawing tool according to [11] or [12], wherein the light emitter is caused to travel on the rail when the optical axis of the light emitter is adjusted.

[15] The light emitter is arranged behind the drawing tool in the drawing direction,
11. The method for adjusting the attachment state of the drawing tool according to any one of the preceding items 1 to 10, wherein the puller is caused to travel on the rail when adjusting the optical axis of the light emitter.

[16] In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the attachment state of the drawing tool Is a method of adjusting
Irradiating a light beam passing through the chuck and the drawing tool from a light emitter disposed behind the drawing tool in the drawing direction;
Running the puller on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method.

[17] From the light emitter, irradiate a light beam that passes through a chuck that grips the drawing tool and the tip of the workpiece,
On the rail on which the puller runs during the drawing process, the puller on which the chuck is attached and at least one of the light emitters are driven,
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
Adjust the mounting state of the drawing tool so that the light beam emitted from the light emitter thus adjusted is irradiated to a predetermined processing reference position in the drawing tool,
Pass the tip of the workpiece through the drawing tool adjusted in this way and grip it with the chuck,
A drawing method, wherein the pulling process by the drawing tool is performed by running the puller to which the chuck is attached on the rail.

  [18] A drawn product manufactured by the drawing method according to item 17 above.

  [19] A pipe produced by the drawing method according to item 17 above.

  [20] A photosensitive drum substrate manufactured by the drawing method according to item 17 above.

[21] a drawing tool;
A chuck for gripping the tip of the workpiece passing through the drawing tool;
A puller to which the chuck is attached;
A rail that causes the puller to run during the drawing process,
Prior to performing the drawing process, a light emitter for irradiating the chuck and the light passing through the drawing tool;
The light emitter is configured such that when at least one of the puller and the light emitter travels on the rail, a light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck. An optical axis adjusting means for adjusting the optical axis of
A drawing tool attachment adjusting means for adjusting the attachment state of the drawing tool so that the light beam emitted from the light emitter thus adjusted is irradiated to a predetermined processing reference position in the drawing tool;
A drawing apparatus characterized by comprising:

[22] In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the attachment state of the drawing tool A light emitter used to adjust the
A carriage capable of traveling on the rail;
A light emitter body mounted on the carriage;
An optical axis adjustment mechanism for adjusting the position and direction of the light beam emitted from the light emitter body;
A light emitting device comprising:

[23] In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the attachment state of the drawing tool A chuck position target used for adjustment of
Removably attached to the chuck by gripping the chuck,
A chuck position target indicating a predetermined gripping reference position in the chuck by a light beam emitted from a light emitter so as to pass through the chuck and the drawing tool prior to the drawing process.

[24] In a drawing apparatus that performs drawing by holding a tip of a workpiece that passes through a die with a chuck and running a puller to which the chuck is attached on a rail, used for adjusting the mounting state of the die. A die axis target,
Removably attached to the die by being fitted in the die,
A die axis target that indicates a predetermined processing reference axis in the die by a light beam irradiated from a light emitter so as to pass through a predetermined gripping reference position in the chuck prior to the drawing process.

  According to the method for adjusting the attachment state of the drawing tool according to the invention [1], a light beam passing through the chuck and the drawing tool is irradiated from the light emitter, and at least one of the puller and the light emitter is caused to travel on the rail. During this run, the optical axis is deviated from the mounting jig of the light emitter itself so as to adjust the light irradiation state of the light emitter so that the light beam emitted from the light emitter is irradiated to a predetermined gripping reference position on the chuck. The trajectory of the gripping reference position of the chuck traveling on the rail can be made clear by the light emitted from the light emitter without being affected by the above. Then, in order to adjust the mounting state of the drawing tool so that the light beam emitted from the adjusted light emitting device is irradiated to the predetermined processing reference position in the drawing tool, The attachment state of the drawing tool can be adjusted without being affected by the shaft misalignment. As a result, it is possible to contribute to reliable production of a highly accurate drawn product. In addition, since the attachment state of the drawing tool is adjusted in accordance with the locus of the gripping reference position of the chuck traveling on the rail, adjustment work is easy.

  According to the invention [2], since the adjustment of the optical axis of the light emitter includes adjustment of the position and direction of the optical axis, the optical axis is adjusted in accordance with the locus of the gripping reference position of the chuck traveling on the rail. Can be performed appropriately.

  According to the above invention [3], since the light beam emitted from the light emitter is the laser beam, the wavelength of the light beam is uniform, so that it is easy to handle.

  According to the invention [4], since the chuck position target indicating the gripping reference position is provided on the chuck, it can be easily determined that the light beam emitted from the light emitter irradiates the gripping reference position. .

  According to the invention [5], since the chuck position target is attached by causing the chuck to grip the chuck position target, the chuck position target can be attached to an accurate position under the same conditions as the workpiece during the drawing process.

  According to the above invention [6], since the drawing tool position target indicating the machining reference position is provided on the drawing tool, it is easily determined that the light beam emitted from the adjusted light emitter irradiates the machining reference position. can do.

  According to the invention [7], the adjusted optical axis is used to adjust the mounting state of the drawing tool so that the light beam emitted from the light emitter passes through a predetermined processing reference axis of the drawing tool. It is possible to appropriately adjust the attachment state of the drawing tool in accordance with.

  According to the above invention [8], since the adjustment of the attachment state of the drawing tool includes adjustment of the attachment position and adjustment of the attachment angle, the adjustment of the attachment state of the drawing tool in accordance with the adjusted optical axis is appropriately performed. It can be carried out.

  According to the invention [9], since the drawing tool is a die for machining the outer surface of the workpiece, it is possible to obtain a drawn product having high accuracy with respect to the outer surface.

  According to the invention [10], since the drawing tool is a plug for machining the inner surface of a cylindrical workpiece, a drawn product with high accuracy can be obtained with respect to the inner surface.

  According to the invention [11], since the light emitter is arranged in front of the puller in the pulling direction, the light beam passes through the puller and is irradiated to the pulling tool, and the drawing tool is adjusted in accordance with the light beam whose optical axis is adjusted. The mounting state of can be adjusted.

  According to the invention [12], since the light emitter is arranged in front of the puller in the pulling direction, the light beam passes through the puller and is irradiated to the pulling tool, and the drawing tool is adjusted in accordance with the light beam whose optical axis is adjusted. The mounting state of can be adjusted.

  According to the above invention [13], when the optical axis of the light emitter is adjusted, the puller is caused to travel on the rail, so that the light emitter can be fixed and the optical axis deviation of the light emitter can be prevented more reliably. can do.

  According to the invention [14], when adjusting the optical axis of the light emitter, since the light emitter travels on the rail, the optical axis can be adjusted without traveling the puller. Can be easily performed.

  According to the invention [15], the light emitter is arranged behind the drawing tool in the drawing direction, and the puller is caused to travel on the rail when adjusting the optical axis of the light emitter. The attachment state of the drawing tool can be adjusted in accordance with a light beam that passes through the drawing tool and is irradiated on the chuck and whose optical axis is adjusted.

  According to the invention [16], the light emitter is disposed behind the drawing tool in the drawing direction, and the puller is caused to travel on the rail when adjusting the optical axis of the light emitter. The attachment state of the drawing tool can be adjusted in accordance with a light beam that passes through the drawing tool and is irradiated on the chuck and whose optical axis is adjusted.

  According to the drawing method according to the invention [17], since the drawing process is executed by the drawing tool that has been adjusted in the above-described mounting state, a highly accurate drawing product can be obtained with certainty.

  According to the drawing product according to the invention [18], since it is manufactured by the drawing method described above, high accuracy can be reliably obtained and it can be suitably used for various applications.

  According to the pipe material concerning the said invention [19], since it manufactures with said drawing method, high precision is obtained reliably and it can utilize suitably for various uses.

  According to the photosensitive drum substrate of the invention [20], since it is manufactured by the drawing method described above, high accuracy can be reliably obtained and it can be suitably used as a photosensitive drum substrate.

  According to the drawing apparatus according to the invention [21], a drawing tool, a chuck for gripping a tip portion of a workpiece passing through the drawing tool, a puller to which the chuck is attached, and the puller when the drawing process is executed. A rail that travels, a light emitter that irradiates a light beam that passes through the chuck and the drawing tool, and at least one of the puller and the light emitter traveled on the rail prior to the drawing process. And an optical axis adjusting means for adjusting an optical axis of the light emitter so that a light beam emitted from the light emitter is irradiated to a predetermined gripping reference position in the chuck, and the light emitter thus adjusted. The mounting state of the drawing tool is adjusted so that the irradiated light is irradiated to a predetermined processing reference position in the drawing tool. Because having a drawing tool mounting adjustment means that, the, perform withdrawal processing method according to the present invention described above, it is possible to obtain a reliable highly accurate drawing products.

  According to the light emitting device according to the invention [22], a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail. A light-emitting device used for adjusting the attachment state of the drawing tool, a carriage capable of traveling on the rail, a light-emitting body attached on the carriage, and a light beam emitted from the light-emitting body. Since the optical axis adjustment mechanism that adjusts the position and direction is provided, the optical axis adjustment work can be easily performed without running the puller, which can contribute to the manufacture of a highly accurate drawn product. .

  According to the chuck position target according to the above invention [23], a drawing process is performed in which a tip of a workpiece passing through a drawing tool is held by a chuck, and a puller attached with the chuck is run on a rail to perform a drawing process. In the apparatus, a chuck position target used for adjusting an attachment state of the drawing tool, which is detachably attached to the chuck by being gripped by the chuck, and prior to execution of the drawing process, the chuck and the drawing tool In order to indicate the predetermined gripping reference position in the chuck by the light beam emitted from the light emitter so as to pass through the processing tool, it is easy to determine that the light beam emitted from the light emitter irradiates the gripping reference position. Can contribute to the manufacture of high-precision drawn products.

  According to the die axis target according to the above invention [24], in the drawing apparatus for carrying out the drawing process by holding the tip of the workpiece passing through the die with the chuck and running the puller to which the chuck is attached on the rail. A die axis target used for adjusting the mounting state of the die, which is detachably attached to the die by being fitted in the die, and a predetermined gripping reference position in the chuck prior to the drawing process Since a predetermined processing reference axis in the die is indicated by the light beam emitted from the light emitter so as to pass through, it is possible to easily determine that the light beam emitted from the light emitter irradiates the processing reference axis. , Can contribute to the manufacture of high-precision drawn products.

(First embodiment)
A drawing apparatus according to a first embodiment of the present invention will be described.

  FIG. 1 is an overall configuration diagram of a drawing apparatus according to the first embodiment. As shown in FIG. 1, the drawing apparatus 10 includes a die 20, a plug 30, a chuck 40, a puller 50, a rail 60, and a laser light source 70.

  FIG. 2 is an explanatory view showing a state in which the drawing process is executed in the drawing apparatus. As shown in FIG. 2, the drawing apparatus 10 passes a cylindrical workpiece 90 through a processing portion by a die 20 and a plug 30, and grips a tip end portion 91 of the workpiece 90 that has been subjected to lip processing with a chuck 40. The pulling process is performed by running the puller 50 to which the chuck 40 is attached on the rail 60.

  The length of the tube (element tube) that is the object of drawing in this drawing apparatus is not particularly limited, but is, for example, about 2 m. The diameter of the tube body is not particularly limited.

  The use of the tubular body manufactured by the present invention is not particularly limited, and is generally a drawn product in general. From the point of obtaining a tubular body having high shape accuracy by correcting uneven thickness in particular, for example, Applications such as a photosensitive drum base tube are suitable.

  Moreover, the material of the target tube body (element tube) is not particularly limited, and all metal materials used for the drawing process can be applied. For example, aluminum and aluminum alloys (1000 to 7000 series), copper and copper alloys, steel materials, magnesium and magnesium alloys can be mentioned.

  Examples of particularly preferable materials include aluminum alloys 3003, 6061, 6051, and 7075. For example, 3003 alloy can be preferably used as a substrate for a photosensitive drum, 6061 alloy can be preferably used as a propeller shaft which is an automobile part, 6051 alloy can be preferably used as a general mechanical part, and 7075 alloy is Preferably it can be used as a bat tube. In addition, “aluminum” in this specification includes an aluminum alloy.

<Dice>
The die 20 is a tool for processing the outer peripheral surface of a workpiece (drawing material) 90 to determine the outer shape and dimensions of a drawn product, and functions as a drawing tool.

  Since this die 20 is worn by the drawing process, it is periodically replaced.

  FIG. 3 is an explanatory sectional view of the die 20. As shown in FIG. 3, the die 20 is provided with a die hole 201 penetrating in the drawing direction. The die hole 201 includes a tapered or arcuate approach portion 202 provided on the rear side in the drawing direction and a cylindrical surface bearing portion 203 that forms the shape of the outer peripheral surface of the workpiece 90 after drawing. In the present invention, a virtual straight line (center axis) passing through the center of the bearing portion 203 is referred to as a machining reference axis (die axis) 21 of the die 20.

  The die 20 is attached to a grounded die frame 24 through a die holder 22 and a spherical holder 23. The die frame 24 is attached to a base frame 61 on which rails 60 and the like are installed.

  The dice 20 is accommodated in a dice accommodating recess provided in the dice holder 22, and is fixed to the dice holder 22 by a dice holding member (not shown).

  The die holder 22 is in spherical contact with the spherical holder 23 by being accommodated in a spherical holder accommodating portion (spherical seat) provided in the spherical holder 23, and the spherical holder 23 is tightened by the clamping force of the die inclination adjusting bolt 221. The inclination angle with respect to can be adjusted.

  The spherical holder 23 is accommodated in a spherical holder accommodating recess 241 provided in the die frame 24 and is fixed to the die frame 24 with fixing bolts 231. The spherical holder receiving recess is formed to be slightly larger than the outer shape of the spherical holder 23, and the spherical holder 23 can adjust the vertical / horizontal position perpendicular to the drawing direction with respect to the die frame 24.

  With such an attachment form, the die 20 can adjust the vertical and horizontal positions and the inclination angle of the machining reference axis (die axis) 21. This attachment form functions as a drawing tool attachment adjusting means for adjusting the attachment state of the die (drawing tool) 20. In this embodiment, prior to the actual drawing process, the machining reference shaft 21 of the die 20 is adjusted in advance so as to coincide with a drawing shaft 41 to be described later to prevent bending of the workpiece 90 after drawing. ing.

<Plug>
The plug 30 is a tool that processes the inner side surface of the cylindrical workpiece 90 to determine the inner surface shape and dimensions of a drawn product, and functions as a drawing tool.

  Since the plug 30 is worn by the drawing process, it is periodically replaced.

  FIG. 4 is an explanatory diagram of the plug 30. As shown in FIG. 4, the plug 30 includes a tapered approach portion 302 provided on the rear side in the drawing direction and a cylindrical bearing portion 303 that forms the shape of the inner peripheral surface of the workpiece 90 after drawing. Including. In the present invention, a virtual straight line (center axis) passing through the center of the bearing portion 303 is called a processing reference axis (plug axis) 31 of the plug 30, and the processing reference axis 31 is the front end of the plug 30 in the drawing direction. A point that intersects the surface is called a processing reference position (plug position) 311. The plug 30 is provided with a mark for visually confirming the processing reference position 311.

  The position of the plug 30 in the drawing direction is a position corresponding to the bearing portion 203 from the approach portion 202 of the die 20. In this embodiment, by using such a plug 30, the work 90 can be contracted and plastic processing can be performed to reduce the thickness.

  The plug 30 is supported from behind (leftward in FIG. 4 and the like) in the drawing direction by the plug support bar 32. The plug 30 is detachably fixed to the plug support bar 32 by a screwing mechanism 33. A flange portion 34 is formed at the proximal end portion of the plug support rod 32. The flange portion 34 is attached to a plug frame 35 erected from the base frame 61 by an attachment bolt 341 so that the attachment position can be changed vertically and horizontally.

  With such an attachment configuration, the plug 30 can adjust the vertical and horizontal positions of the processing reference position 311. This attachment form functions as a drawing tool attachment adjusting means for adjusting the attachment state of the plug (drawing tool) 30. In this embodiment, prior to the actual drawing process, the processing reference position 311 of the plug 30 is adjusted in advance so as to be positioned on a drawing shaft 41 to be described later, whereby the processing reference shaft 31 of the plug 30 is substantially pulled out. 41 to prevent the workpiece 90 from being bent after being pulled out.

<Chuck>
The chuck 40 grips the tip 91 of the workpiece 90 that has passed through the above-described die 20 and plug 30 processed portions. The chuck 40 is provided on a puller 50 that runs on the rail 60. In addition, the front-end | tip part 91 of the workpiece | work 90 hold | gripped by the chuck | zipper 40 is lip-processed by the front process previously, and is smaller than the external dimension after drawing.

  FIG. 5 is a plan view of a puller including a chuck. FIG. 6 is a longitudinal sectional view of a puller including a chuck. FIG. 7 is a front view of the chuck as viewed from the die 20 side.

  As shown in FIG. 5, the chuck 40 includes a pair of chuck blocks 42 and 42 that sandwich and grip the tip 91 of the workpiece 90 from the left and right. On the inner surface where the pair of chuck blocks 42 and 42 face each other, concave portions 421 and 421 into which the tip end portion 91 of the workpiece 90 is fitted are formed. In this embodiment, as shown in FIG. 7, the center position of the workpiece 90 when the distal end portion 91 of the appropriate workpiece 90 is properly gripped by the chuck 40 is referred to as a gripping center position A.

  The pair of chuck blocks 42, 42 have outer surfaces 422, 422 that are diagonally formed so as to narrow toward the opposite direction of the pull-out direction (left direction in FIG. 5), and a pair of chuck supports erected on the puller 50. The blocks 52 and 52 are in contact. With this structure, the pair of chuck blocks 42 and 42 can move obliquely along the angle of the outer surfaces 422 and 422. For this reason, when the pair of chuck blocks 42 and 42 are pulled in the direction opposite to the pulling direction (the left direction in FIG. 5) when gripping and pulling the tip 91 of the workpiece 90, the gripping force of the tip 91 of the workpiece 90 is pulled. Is getting even higher.

  As shown in FIG. 6, an opening / closing mechanism 43 for the pair of chuck blocks 42, 42 is provided above the pair of chuck blocks 42, 42. The opening / closing mechanism 43 includes an interlocking piece 431 fitted in the recesses 423 and 423 on the upper surfaces of the pair of chuck blocks 42 and 42, a spring for urging the interlocking piece 431 in the pulling direction (right direction in FIG. 6), and the like. The urging means 432 and the pressing means 433 including an air cylinder or the like that can appropriately press the interlocking piece 431 in the direction opposite to the pulling direction (the left direction in FIG. 6). The upper end portion of the interlocking piece 43 is rotatably attached to the chuck support blocks 52 and 52, and the pair of chuck blocks 42 and 42 are opened and closed according to the swinging operation of the interlocking piece 43. With this structure, the pair of chuck blocks 42, 42 are normally separated from each other by the biasing means 432, while the two are brought close to each other by the air cylinder 433, thereby appropriately chucking the tip 91 of the workpiece 90. Be able to.

  The opening / closing mechanism 43 is provided above the gripping center position A, and a space in front of the chuck 40 in the drawing direction (right side in FIG. 6) is vacant. Specifically, the interlocking piece 431 is provided above the chuck blocks 42, 42, and the urging means (spring) 432 and the pressing means (air cylinder) 433 are also provided at the upper part of the puller 50. Is attached. Since the back space of the chuck 40 is vacant as described above, when adjusting the mounting state of the die 20 and the plug 30, as described later, the chuck 40 is arranged in front of the chuck 40 in the drawing direction (right side in FIG. 6). The laser beam emitted from the laser light source 70 can be applied to the grip center position A.

  FIG. 8 is an explanatory diagram showing the locus of the chuck when the puller runs on the rail. As shown in FIG. 8, when the puller 50 runs on the rail 60, the center position (grip center position A) of the tip 91 of the work 90 gripped by the chuck 40 draws a locus parallel to the rail 60. In the present embodiment, the locus of the grip center position A is referred to as a pulling shaft 41.

<Puller>
The puller 50 is attached to the chuck 40 that holds the tip 91 of the workpiece 90 and travels on the rail 60 installed along the pulling direction.

  The puller 50 is provided with sliders 54 for sliding on the rail 60, and the chain 55 attached to the front side in the drawing direction can be taken up by the winder 56, so that the puller 50 can run in the drawing direction. It is like that.

<Rail>
The rail 60 is the one on which the puller 50 travels when the drawing process is executed. As shown in FIG. 5, the rail 60 is composed of two pieces installed in parallel, and has a length of about 10 m, for example, depending on the scale of the apparatus. Since the linearity of the extraction shaft 41 is determined by the rail 60, the rail 60 is accurately and accurately installed on the stable base frame 61.

<Laser light source>
The laser light source 70 irradiates a laser beam passing through the die 20, the plug 30 and the chuck 40, and is used for adjusting the mounting state of the die 20 and the plug 30 performed prior to the drawing process. That is, the laser light source 70 functions as a light emitter. In this embodiment, by adopting the laser light source 70 as a light emitter, it is possible to easily handle the light by obtaining light beams having a uniform wavelength.

  In the first embodiment, the laser light source 70 is disposed in front of the puller 50 in the drawing direction (rightward in FIG. 1). In the first embodiment, as will be described later, the laser light source 70 is positioned in front of the puller 50 in order to adjust the optical axis 71 of the laser light source (light emitting device) 70 while the puller 50 travels on the rail 60. It is fixedly installed at a predetermined position.

  FIG. 9 is a perspective view of a laser light source (light emitter). As shown in FIG. 9, the laser light source 70 includes a cylindrical light source body 72 that emits a laser beam.

  The light source body (light emitter body) 72 is attached to the light source holder 73 at an intermediate portion in the length direction. The light source holder 73 can adjust the tilt angle of the optical axis 71 of the laser beam emitted from the light source main body 72 in the vertical direction and the horizontal direction by using the mounting angle adjusting mechanisms 731 and 732 provided on the upper part and the side part. It is like that. Specifically, for example, an inclination angle of about 3 degrees can be adjusted in both the vertical direction and the horizontal direction.

  The light source holder 73 is attached to a mount part 74 having an L shape in side view, and the mount part 74 is attached to a flat base part 75. The light source holder 73 can be slid up and down with respect to the mount portion 74 by an up and down slide mechanism 741. The mount 74 can be slid left and right by a left and right slide mechanism 742.

  With such a mounting form, the laser light source 70 can adjust the irradiation direction and light beam irradiation position of the optical axis 71 of the laser beam. This attachment form functions as an optical axis adjusting means for adjusting the optical axis of the laser light source (light emitter) 70.

<Procedure of adjustment method>
Next, the procedure of the adjustment method of the attachment state of the drawing tool (die 20 and plug 30) in such a drawing apparatus 10 will be described. The adjustment of the mounting state of the drawing tool (die 20 and plug 30) is performed prior to the actual drawing process on the workpiece 90.

  In this adjustment procedure, the first step of aligning the optical axis 71 of the laser light source (light emitter) 70 with the extraction shaft 41 of the chuck 40 and the die (drawing tool) on the optical axis 71 of the laser light source (light emitter) 70 are performed. ) 20 processing reference shafts 21 and a second step of matching the processing reference positions 311 of the plugs (drawing tool) 30 with each other.

  In the first step, the laser light source is irradiated so that the laser beam emitted from the laser light source 70 is always emitted to the gripping center position A (grip reference position) of the chuck 40 even when the puller 50 travels on the rail 60. By adjusting the optical axis 71 of 70, the drawing axis 41 that is the locus of the gripping center position A and the optical axis 71 of the laser light source 70 are matched.

  In the first embodiment, this first step is performed while the puller 50 is actually running on the rail 60.

  In the first step, a chuck position target 80 for visually indicating the grip center position (grip reference position) A of the chuck 40 is attached to the chuck 40. By using such a chuck position target 80, it can be easily and reliably determined that the laser beam is irradiating the grip center position A of the chuck 40.

  FIG. 10 is a perspective view of the chuck position target 80 attached to the chuck 40. As shown in FIG. 10, the chuck position target 80 includes a cylindrical main body 81 and a screen 82 provided on an end surface on the rear side in the drawing direction (lower left side in FIG. 10).

  The main body 81 is formed to have the same size as the tip 91 of the workpiece 90 that is the object of drawing, and the chuck block 42 of the chuck 40 under the same conditions as the workpiece 90 at the time of drawing. , 42 are held at accurate positions.

  The screen 82 is made of a translucent material that allows the irradiation position of the laser beam emitted from the laser light source 70 forward (upper right side in FIG. 10) in the drawing direction to be visually recognized from the rear (lower left side in FIG. 10). A mark 83 indicating the grip center position (grip reference position) A is provided.

  In the first step, a laser beam is irradiated from a laser light source 70 disposed in front of the puller 50 in the drawing direction (rightward in FIG. 1) toward the chuck position target 80 attached to the chuck 40, and the chuck position target 80. The optical axis 71 of the laser light source 70 is adjusted by the optical axis adjusting means so that the laser beam is applied to the grip center position (grip reference position) A indicated by. The adjustment of the optical axis 71 includes adjustment of the irradiation direction and light beam irradiation position of the optical axis 71.

  Subsequently, the puller 50 (chuck 40) is moved on the rail 60 and moved from the position where the optical axis 71 has been adjusted previously, and even after this movement, the laser beam of the laser light source 70 remains at the gripping center of the chuck 40. Check whether the position A is irradiated. If the grip center position A is not irradiated, the optical axis 71 of the laser light source 70 is adjusted again by the optical axis adjusting means.

  By repeating the above adjustment, the pulling shaft 41 that is the locus of the grip center position A of the chuck 40 and the optical axis 71 of the laser light source 70 coincide with each other when the puller 50 travels on the rail 60, and the pulling shaft 41 is visualized by the laser beam.

  In the first step, when the puller 50 is positioned at at least two locations on the rail 60, if the laser beam irradiates the gripping center position A, the pulling shaft 41 of the chuck 40 and the laser light source 70 This means that the optical axis 71 coincides. However, in order to make the optical axis 71 coincide with the extraction axis 41 with higher accuracy, the laser beam irradiates the grip center position A when the puller 50 is positioned near the front end and the rear end of the rail 60. It is desirable to adjust the optical axis 71 as described above.

  According to such a first step, since the laser light source 70 is placed outside the chuck 40 (puller 50), the position and direction of the laser beam emitted from the laser light source 70 is adjusted for mounting the light source holder 73 and the like. Even if there is a deviation from the tool, the extraction shaft 41 can be made visible by the laser beam without being affected by this.

  Further, since the puller 50 is run on the rail 60 and the laser light source 70 is fixed, it is possible to prevent the optical axis of the laser light source 70 from being shifted.

  In the second step, the processing reference shaft 21 of the die (drawing tool) 20 and the plug (drawing addition) are applied to the optical axis 71 of the laser light source 70 coincident with the drawing shaft 41 in the first step described above. This is a step of adjusting the mounting state of the die 20 and the plug 30 so that the machining reference position 311 of the tool 30 matches.

  In the second step, a die axis target (drawing tool position target) 85 for visually indicating the machining reference axis 21 of the die 20 is attached to the die 20. By using such a die axis target 85, it can be easily and reliably determined that the laser beam is irradiating the die axis 21 of the die 20.

  FIG. 11 is a longitudinal sectional view of the die shaft target 85 attached to the die 20. As shown in FIG. 11, the die axis target 85 includes a cylindrical main body 86 and screens 87 provided on end surfaces on the front side (left side in FIG. 11) and rear side (right side in FIG. 11) in the drawing direction. 87.

  The main body portion 86 is configured to have the same outer diameter as the inner diameter of the bearing portion 203 of the die 20, and can be detachably attached to the die 20 by being fitted into the die 20.

  The screens 87 and 87 are configured so that the irradiation position of the laser beam emitted from the laser light source 70 can be visually recognized at the front end portion and the rear end portion of the die axis target 85, and at the center position of the die hole 201 on each surface. It can confirm that the laser beam is irradiated.

  FIG. 12 is an example of screens 87, 87 provided on the end face of the die axis target 85. In the example shown in FIG. 12A, the screen 87 is made of a translucent material that can visually recognize the irradiation position of the laser beam, and is provided with a mark 88 that indicates the center position. In the example shown in FIG. 12B, the screen 87 is composed of thin wires 89 and 89 stretched in a + -shape, and a center position 891 where the wires 89 and 89 intersect can be determined.

  In the second step, a laser beam is irradiated from the laser light source 70 toward the die axis target 85 attached to the die 20, and the laser beam is irradiated to the center positions 88 and 891 of the front end portion and the rear end portion of the die axis target 85. As described above, the attachment state of the die 20 is adjusted by the drawing tool attachment adjusting means. The adjustment of the mounting state of the die 20 includes adjustment of the mounting position of the upper, lower, left, and right directions orthogonal to the drawing direction and adjustment of the mounting direction that is an inclination with respect to the drawing direction.

  If the laser beam is adjusted to irradiate the center positions 88 and 891 of the front end portion and the rear end portion of the die axis target 85 in this way, a die axis (processing reference axis) that is a straight line connecting these two center positions. 21 and the optical axis 71 of the laser light source 70 coincide with each other.

  Next, the die axis target 85 is removed from the die 20, and the attachment state of the plug 30 is adjusted.

  The adjustment of the attachment state of the plug 30 is performed by irradiating the plug 30 attached to the plug support rod 32 with a laser beam from a laser light source 70 disposed forward (rightward in FIG. 1) in the drawing direction. The attachment state of the plug 30 is adjusted by the drawing tool attachment adjusting means so that the mark provided at the 30 processing reference position 311 is irradiated with a laser beam.

  According to such a second step, since the laser light source 70 is placed outside the die 20 and the plug 30, the position and direction of the laser beam emitted from the laser light source 70 is determined as a mounting jig such as the light source holder 73. Even if there is a deviation with respect to, the die shaft 21 and the plug position 311 can be adjusted to coincide with the drawing shaft 41 without being affected by this.

  Through the series of steps described above, the machining reference axis (die axis) 21 of the die 20 and the drawing shaft 41 that is the locus of the gripping center position of the chuck 40 coincide with each other, and the machining reference position 311 of the plug 30 is on the drawing shaft 41. The state located at is obtained.

  Note that the laser light source (light emitter) 70 may be removed from the drawing apparatus 10 when the adjustment work of the attachment state of the drawing tool (the die 20 and the plug 30) is completed.

  When the mounting state of the drawing tool (the die 20 and the plug 30) is adjusted in this way, the tip end portion 91 of the workpiece 90 that has been preliminarily processed is passed through the die hole 201 of the die 20 and is gripped by the chuck 40. With the plug 30 inserted and supported in 90, the pulling process is executed by running the puller 50 on the rail 60.

  According to such a drawing method, it is possible to reliably manufacture a highly accurate drawn product without bending or the like.

  The use of the drawn product manufactured by the above drawing method is not particularly limited, and can be applied to all drawn products including various shapes of pipes and bars. In particular, a tubular body having excellent shape accuracy can be obtained. Specific examples of suitable applications include a photosensitive drum substrate used in an electrophotographic system. Further, the length and diameter of the manufactured drawn product are not particularly limited.

(Second Embodiment)
Next, a drawing apparatus according to a second embodiment of the present invention will be described.

  In the first embodiment, the puller 50 is run on the rail 60 in the first step in which the optical axis 71 of the laser light source (light emitting device) 70 is aligned with the extraction shaft 41 of the chuck 40. In the second embodiment, the laser light source (light emitter) 70 ′ is run on the rail while the puller 50 is stopped on the rail 60.

  In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and a duplicate description is omitted, and differences are described.

  FIG. 13 is an overall configuration diagram of a drawing apparatus 10 'according to the second embodiment. FIG. 14 is a front view of a laser light source 70 ′ provided in the drawing apparatus 10 ′ of the second embodiment.

  As shown in FIG. 14, in the laser light source 70 'according to the second embodiment, a slide surface 76 for sliding on the rail 60 is formed on the lower surface of the base portion 75' on the flat plate. Then, downwardly projecting portions 761 and 761 are provided on both the left and right sides of the slide surface 76, so that the rail 60 is sandwiched therebetween so that the left and right positions with respect to the rail 60 are stabilized. With this configuration, the base portion 75 ′ of the laser light source 70 ′ functions as a carriage that can travel on the rail 60. Other configurations of the laser light source 70 ′ are the same as those of the first embodiment, and the position and direction of the light source main body (light emitter main body) 72 that emits the laser light and the laser light emitted from the light source main body 72 can be adjusted. An optical axis adjusting mechanism including a light source holder 73, a mount portion 74, and the like is provided.

  As shown in FIG. 13, this laser light source 70 ′ is disposed so as to be able to run on a rail 60 in front of the puller 50 (rightward in FIG. 13) in the pulling direction, and the puller 50 and the drawing tool from the front in the pulling direction. A laser beam can be irradiated toward (die 20 and plug 30).

  In the procedure for adjusting the attachment state of the drawing tool (the die 20 and the plug 30) in the second embodiment as described above, the optical axis 71 of the laser light source (light emitter) 70 is placed on the drawing shaft 41 of the chuck 40 as described above. In the first step of matching the two, the laser light source (light emitting device) 70 ′ is run on the rail while the puller 50 is stopped on the rail 60, which is different from the first embodiment.

  Even in this case, the optical axis 71 of the laser light source 70 is such that the laser beam emitted from the laser light source 70 traveling on the rail 60 is always applied to the grip center position A (grip reference position) of the chuck 40. Is adjusted, the state where the optical axis 71 of the laser light source 70 coincides with the extraction axis 41 that is the locus of the gripping center position A is obtained.

  In this first step, as in the first embodiment, a chuck position target 80 (see FIG. 10) is attached to the chuck 40 to visually indicate the grip center position (grip reference position) A of the chuck 40. It is done.

  According to such a first step, since the laser light source 70 is placed outside the chuck 40 (puller 50), the position and direction of the laser beam emitted from the laser light source 70 is adjusted for mounting the light source holder 73 and the like. Even if there is a deviation from the tool, the extraction shaft 41 can be made visible by the laser beam without being affected by this.

  Further, since the drawing force must be transmitted to the workpiece 90 at the time of the drawing process, it is not necessary to run the puller 50 that requires a strong configuration, so that the operation can be easily performed.

  Subsequently, the processing reference axis 21 of the die (drawing tool) 20 and the processing reference position 311 of the plug (drawing tool) 30 coincide with the optical axis 71 of the laser light source 70 that matches the drawing axis 41. The second step of adjusting the mounting state of the die 20 and the plug 30 is the same as in the first embodiment.

(Third embodiment)
Next, a drawing apparatus according to a third embodiment of the present invention will be described.

  In the first and second embodiments, the laser light source (light emitter) 70 is disposed in front of the puller 50 in the pulling direction, whereas in the third embodiment, the laser light source (light emitter) 70 ″ is pulled in the pulling direction. Is arranged behind the die (drawing tool) 20.

  In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and a duplicate description is omitted, and differences are described.

  FIG. 15 is an overall configuration diagram of the drawing apparatus 10 ″ according to the third embodiment. As shown in FIG. 15, the laser light source 70 ″ of the third embodiment has a die (drawing tool) 20 in the drawing direction. The laser beam is arranged further rearward so that the laser beam passes through the die hole 201 of the die 20 and reaches the chuck 40 attached to the puller 50. In the third embodiment, the plug 30 is removed when adjusting the attachment position of the drawing tool (die 20), and the attachment state of the plug 30 is not adjusted.

  In this way, even when the laser light source (light emitter) 70 ″ is arranged, the laser beam passes through both the die (drawing tool) 20 and the chuck 40, and this laser beam causes the puller 50 to move on the rail 60. A first step of adjusting the optical axis 71 of the laser light source 70 so as to always irradiate the grip center position A (grip reference position) of the chuck 40, and the optical axis 71 of the laser beam to the dice. (Drawing tool) The second step of matching the machining reference axis 21 of the die 20 can be executed, and the machining reference axis 21 of the die 20 and the drawing axis 41 of the chuck 40 can be matched.

  According to the third embodiment, since the laser light source 70 for adjusting the optical axis 71 is separated from the puller 50 running on the rail 60, the adjustment work of the optical axis 71 can be performed safely.

  In addition, since the laser beam is irradiated from the front side (die 20 side) to the chuck 40, the chuck 40 and the puller 50 can be applied even if the laser beam passing through the gripping center position A cannot be penetrated. it can.

(Manufacturing system)
Next, the manufacturing system 6 according to the present invention will be described.

  FIG. 16 is a functional block diagram showing the configuration of the manufacturing system 6.

  This manufacturing system 6 includes a pipe making device 601 for producing a raw pipe (tube body) 1, a pipe body drawing device 10 described above, a mouth part cutting machine 64 for performing a mouth part cutting process, and a drawing process. Bending straightening device 65 for straightening the bending of the manufactured drawn tube, cutting device 66 for cutting to a predetermined length as a product, rough cleaning device 67 for performing a rough cleaning step, and finish cleaning for performing a final cleaning step A device 68 and an inspection device 69 for inspecting the shape and surface state of the manufactured tube are provided. The drawing apparatus is not limited to the one described in the first embodiment.

  The pipe making apparatus 601 is for making a raw pipe by extrusion molding, for example. Specifically, in the case of manufacturing a photosensitive drum base tube made of an aluminum alloy, a set of mechanical devices that perform a process of manufacturing a billet made of aluminum, for example, as an extruded material by melting a raw material or an extrusion process Configured as

  FIG. 17 is a schematic plan view of an extruder 62 that performs this extrusion process. The aluminum extrusion element tubes 622 extruded from the extruder main body 621 are conveyed forward in the extrusion direction by a plurality of pairs of support rollers 623... And are cut into a predetermined length R by a cutting machine 624.

  FIG. 18 is a cross-sectional view of an example of the extrusion die 63 provided in the extruder main body 621. This extrusion die 63 is a port hole die, 631 is a female die, and 632 is a male die. The die female die 631 is formed with a through-hole through hole 633 formed at the center, and the peripheral surface on the inlet side of the extrusion hole 633 is a circular bearing portion 634. Reference numeral 635 denotes a relief portion. On the other hand, the die male mold 632 has a molding convex part 636 having a circular cross section at the center thereof, and a circular bearing part 637 is formed on the tip peripheral surface of the molding convex part 636. Reference numeral 638 denotes a passage hole through which the aluminum billet passes. The die female die 631 and the die male die 632 are combined, and the tip of the molding convex portion 636 of the male die 632 is seen in the extrusion hole 633 of the female die 631, so that both male and female bearing portions 634 and 637 are annular. Are arranged opposite to each other with a molding gap 639 therebetween.

  The extrusion method is not particularly limited, and may be one using a porthole die or mandrel extrusion.

  The extruded aluminum tube thus manufactured is drawn by the drawing system 2 described above, and an aluminum drawn tube without uneven thickness (or less) is obtained. Subsequently, the aluminum drawing tube (photosensitive drum base tube) is removed by a mouth cutting unit 64 by a press cutting method or the like.

  FIG. 19 is a cross-sectional view showing an example of a lip cutting machine 64 that performs the lip cutting step. This cutting machine 79 inserts the end portion of the aluminum drawing pipe 641 on the side of the mouthpiece 642 into the inside of the molds 643 and 643 and lowers the cutting blade 644 to cut and remove the mouthpiece portion 642. Since this cutting is performed by a parting blade, no chips are generated, and chips and the like are brought into the roll straightening machine so that the aluminum drawing pipe 641 is not scratched.

  The bending of the aluminum drawing tube (photosensitive drum base tube) from which the lip portion has been cut is corrected by a bending correction process by the bending correction device 65.

  FIG. 20 is a conceptual diagram illustrating an example of a bending correction device 65 that performs a bending correction process. This bend straightening device 65 is configured as a roll straightening machine that straightens the aluminum drawing tube 651 having the cut-out portion cut off by the action of the straightening roller 652 inside.

  The aluminum drawn tube (photosensitive drum base tube) whose curvature has been corrected in this way is cut into a predetermined length according to the application by the cutting device 66.

  Subsequently, cleaning is performed by the rough cleaning device 67 and the finish cleaning device 68.

  The rough cleaning step by the rough cleaning device 67 is a step of removing the lubricating oil or the like adhering to the aluminum drawing pipe in the drawing step or the like. This rough cleaning process is performed using, for example, a solvent having a degreasing power. Although it does not specifically limit as a specific method, For example, the immersion method, the shower method, etc. are mentioned.

  The finishing cleaning process by the finishing cleaning apparatus is preferably performed by, for example, ultrasonic cleaning.

  FIG. 21 is a conceptual diagram showing an example of an ultrasonic cleaning machine (finishing cleaning apparatus) 68. This ultrasonic cleaning machine 68 immerses a plurality of aluminum drawing pipes 683 as an object to be cleaned in a cleaning liquid 682 stored in a cleaning increase 681, and sends ultrasonic waves into the cleaning liquid 682 by a vibrator 684. The aluminum drawing pipe 683 that is the object to be cleaned is cleaned.

  The ultrasonic irradiation method is not particularly limited, and an adhesive type, a vibration transmitter type, and other various washing machines can be used in addition to the throwing type shown in FIG. The cleaning liquid is generally white kerosene, light oil, alkali, surfactant, trichloroethylene, or the like, but is not limited thereto, and water-based, hydrocarbon-based, chlorinated organic solvents, etc. may be used as appropriate. Good.

  The tube body (aluminum drawn tube) thus manufactured is inspected by the inspection device 69 to determine whether the shape, surface state, and the like are within a predetermined allowable range. Is done.

  The tubular body (aluminum drawn tube) obtained through the series of extrusion process, cutting process, drawing process, bending correction process, cleaning process, finishing cleaning process and inspection process as described above has excellent surface quality, copying machine, It is suitable as a substrate for a photosensitive drum of an electrophotographic apparatus such as a printer or a facsimile.

(Other forms)
While the present invention has been described based on the specific embodiments, the present invention may be configured as follows.

  (1) In the above embodiment, the gripping center position A of the chuck 40 is used as the gripping reference position, and light is irradiated here. However, the gripping reference position represents the position of the workpiece 90 gripped by the chuck 40. Any position can be set as long as it is a position. The same applies to the extraction shaft 41 that is the locus of the grip reference position.

  (2) In the above embodiment, the center axes of the die 20 and the plug 30 are the processing reference axes 21 and 31, but the shaft represents the position of the workpiece 90 drawn by the die 20 and the plug 30. Any straight line corresponding to the pulling shaft 41 that is the locus of the 40 gripping reference positions can be set at any position.

  (3) In the above embodiment, the die 20 is adjusted so that the machining reference axis 21 coincides with the drawing shaft 41. However, the predetermined machining reference position indicating the position of the die 20 is positioned on the drawing shaft 41. It is good also as performing. That is, although the adjustment accuracy of the attachment state is inferior, a simple method can be adopted in which the inclination of the attachment angle of the die (drawing tool) 20 is not adjusted. On the contrary, in the above embodiment, the plug 30 is only adjusted so that the machining reference position 311 coincides with the drawing shaft 41. You may employ | adopt the method of obtaining the higher adjustment system which makes the axis | shaft 31 correspond to the drawing-out axis | shaft 41. FIG.

  (4) In the above-described embodiment, the drawing apparatus 10 for drawing one workpiece is illustrated, but an apparatus configuration for drawing a plurality of workpieces at the same time may be used.

  (5) In the above embodiment, the fixed plug type using the plug 30 fixedly supported at a predetermined position by the plug support bar 32 is adopted, but a floating plug type that is pulled and supported at a fixed position in the drawing direction is adopted. May be. In addition, the plug 30 may not be used when drawing a solid bar or a cylindrical workpiece that does not require accuracy in the inner diameter.

  (6) In the above embodiment, the laser light source (light emitter) can adjust the angle and position of the optical axis in all directions, but may be configured to adjust only a part of it.

  (7) Although the laser light source is employed as the light emitter in the above embodiment, various light sources can be employed as long as they emit a light beam that can reveal the extraction axis. Further, the light emitted from the light emitter may not be visible light as long as it has a wavelength that can be visualized by wearing an instrument such as special glasses.

1 is an overall configuration diagram of a drawing apparatus according to a first embodiment. It is explanatory drawing which shows the state which is performing the drawing process in a drawing apparatus. It is an explanatory sectional view of a die. It is explanatory drawing of a plug. It is a top view of the puller containing a chuck | zipper. It is a longitudinal cross-sectional view of the puller containing a chuck | zipper. It is the front view which looked at the chuck | zipper from the die | dye side. It is explanatory drawing showing the locus | trajectory of the chuck | zipper when a puller runs on a rail. It is a perspective view of a laser light source (light emitter). It is a perspective view of the state where the chuck position target was attached to the chuck. It is a longitudinal cross-sectional view of the state which attached the dice axis target to the dice. It is an example of the screen provided in the end surface of a die-axis target. It is a whole block diagram of the drawing processing apparatus concerning 2nd Embodiment. It is a front view of the laser light source with which the drawing apparatus of 2nd Embodiment is provided. It is a whole block diagram of the drawing processing apparatus concerning 3rd Embodiment. It is a functional block diagram which shows the structure of the manufacturing system of the tubular body concerning this invention. It is a schematic plan view of the extruder which performs an extrusion process. It is sectional drawing in an example of the extrusion die with which an extruder main body is provided. It is sectional drawing which shows an example of the mouthpiece part cutting machine which performs a mouthpiece part cutting process. It is a conceptual diagram which shows an example of the curvature correction apparatus which performs a curvature correction process. It is a conceptual diagram which shows an example of a finishing cleaning apparatus.

Explanation of symbols

10 Drawing device 20 Die (drawing tool)
201 Die hole 203 Bearing part 21 Machining reference axis (die axis)
22 Die holder (Drawing tool mounting adjustment means)
221 Die tilt adjustment bolt (drawing tool mounting adjustment means)
23 Spherical holder (drawing tool mounting adjustment means)
231 Fixing bolt (drawing tool mounting adjustment means)
24 Die frame 30 Plug (drawing tool)
303 Bearing part 311 Processing reference position (plug position)
32 Plug support rod 33 Screw fixing mechanism (drawing tool mounting adjustment means)
35 Plug frame (drawing tool mounting adjustment means)
40 Chuck 41 Pull-out shaft 50 Puller 53 Frame 54 Slider 55 Chain 56 Winder 60 Rail 61 Base frame 70 Laser light source (light emitter)
71 Optical axis 731 732 Mounting angle adjustment mechanism (optical axis adjustment means)
741 Vertical slide mechanism (optical axis adjustment means)
742 Left-right slide mechanism (optical axis adjustment means)
80 Chuck position target 85 Die axis target 90 Work 91 Tip A A Gripping center position (gripping reference position)

Claims (24)

In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the mounting state of the drawing tool is adjusted. A method,
Irradiating light from the light emitter through the chuck and the drawing tool;
Running at least one of the puller and the light emitter on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method.   The method for adjusting the attachment state of the drawing tool according to claim 1, wherein the adjustment of the optical axis of the light emitter includes adjustment of the position and direction of the optical axis.   3. The method for adjusting a mounting position of a drawing tool according to claim 1, wherein the light beam emitted from the light emitter is a laser beam.   The method for adjusting the attachment state of the drawing tool according to any one of claims 1 to 3, wherein the chuck is provided with a chuck position target indicating the gripping reference position.   The method according to claim 4, wherein the chuck position target is attached by gripping the chuck position target.   6. The drawing tool mounting state adjusting method according to claim 1, wherein the drawing tool is provided with a drawing tool position target indicating the processing reference position.   The attachment state of the drawing tool is adjusted so that a light beam emitted from the light emitter passes through a predetermined processing reference axis in the drawing tool. The attachment state adjustment method of the drawing tool as described.   The method for adjusting the attachment state of the drawing tool according to claim 1, wherein the adjustment of the attachment state of the drawing tool includes adjustment of an attachment position and adjustment of an attachment angle.   The method for adjusting an attachment state of a drawing tool according to any one of claims 1 to 8, wherein the drawing tool is a die for machining an outer surface of a workpiece.   The method for adjusting the attachment state of the drawing tool according to any one of claims 1 to 9, wherein the drawing tool is a plug for machining an inner surface of a cylindrical workpiece.   The method of adjusting the attachment state of the drawing tool according to any one of claims 1 to 10, wherein the light emitter is arranged in front of the puller in a drawing direction. In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the mounting state of the drawing tool is adjusted. A method,
Irradiating a light beam passing through the chuck and the drawing tool from a light emitter disposed in front of the puller in the drawing direction;
Running at least one of the puller and the light emitter on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method.   The pulling tool attachment state adjusting method according to claim 11 or 12, wherein the puller is caused to travel on the rail when adjusting the optical axis of the light emitter.   The method for adjusting the attachment state of the drawing tool according to claim 11 or 12, wherein the light emitter is caused to travel on the rail when the optical axis of the light emitter is adjusted. The light emitter is arranged behind the drawing tool in the drawing direction,
The pulling tool attachment state adjusting method according to claim 1, wherein the puller is caused to travel on the rail when adjusting the optical axis of the light emitter. In a drawing apparatus that performs drawing by holding a tip of a workpiece passing through a drawing tool with a chuck and running a puller to which the chuck is attached on a rail, the mounting state of the drawing tool is adjusted. A method,
Irradiating a light beam passing through the chuck and the drawing tool from a light emitter disposed behind the drawing tool in the drawing direction;
Running the puller on the rail;
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
In the drawing tool, the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter thus adjusted is emitted to a predetermined processing reference position in the drawing tool. Mounting state adjustment method. From the light emitter, irradiate the drawing tool and the light beam that passes through the chuck that holds the tip of the workpiece.
On the rail on which the puller runs during the drawing process, the puller on which the chuck is attached and at least one of the light emitters are driven,
During this traveling, the optical axis of the light emitter is adjusted so that the light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck,
Adjust the mounting state of the drawing tool so that the light beam emitted from the light emitter thus adjusted is irradiated to a predetermined processing reference position in the drawing tool,
Pass the tip of the workpiece through the drawing tool adjusted in this way and grip it with the chuck,
A drawing method, wherein the pulling process by the drawing tool is performed by running the puller to which the chuck is attached on the rail.   A drawn product manufactured by the drawing method according to claim 17.   A pipe material manufactured by the drawing method according to claim 17.   A photosensitive drum substrate manufactured by the drawing method according to claim 17. A drawing tool;
A chuck for gripping the tip of the workpiece passing through the drawing tool;
A puller to which the chuck is attached;
A rail that causes the puller to run during the drawing process,
Prior to performing the drawing process, a light emitter for irradiating the chuck and the light passing through the drawing tool;
The light emitter is configured such that when at least one of the puller and the light emitter travels on the rail, a light beam emitted from the light emitter is emitted to a predetermined gripping reference position in the chuck. An optical axis adjusting means for adjusting the optical axis of
A drawing tool attachment adjusting means for adjusting the attachment state of the drawing tool so that the light beam emitted from the light emitter thus adjusted is irradiated to a predetermined processing reference position in the drawing tool;
A drawing apparatus characterized by comprising: In a drawing apparatus that performs drawing by holding the tip of the workpiece that passes through the drawing tool with a chuck and running a puller to which the chuck is attached on a rail, for adjusting the mounting state of the drawing tool A light emitter used,
A carriage capable of traveling on the rail;
A light emitter body mounted on the carriage;
An optical axis adjustment mechanism for adjusting the position and direction of the light beam emitted from the light emitter body;
A light emitting device comprising: In a drawing apparatus that performs drawing by holding the tip of the workpiece that passes through the drawing tool with a chuck and running a puller to which the chuck is attached on a rail, for adjusting the mounting state of the drawing tool A chuck position target used,
Removably attached to the chuck by gripping the chuck,
A chuck position target indicating a predetermined gripping reference position in the chuck by a light beam emitted from a light emitter so as to pass through the chuck and the drawing tool prior to the drawing process. A die shaft used for adjusting the mounting state of the die in a drawing apparatus that performs a drawing process by gripping the tip of a workpiece passing through the die with a chuck and running a puller to which the chuck is attached on a rail. A target,
Removably attached to the die by being fitted in the die,
A die axis target that indicates a predetermined processing reference axis in the die by a light beam irradiated from a light emitter so as to pass through a predetermined gripping reference position in the chuck prior to the drawing process.

Images