JP2005144553A - Drawing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawing device for a tubular material, a rod material or the like as a means where a drawing axis can be easily controlled, and a drawn workpiece having high precision can be obtained. <P>SOLUTION: In the drawing device 10, the tip of a work passing through drawing tools 20 and 30 is grasped with a chuck 40, and a puller 50 fitted with the chuck 40 is made to run on a rail 60, thus drawing is performed. The puller 50 is provided with a light emitter 70 in such a manner that, in the case the drawing tools 20 and 30 are properly fitted, light is applied to the position where the prescribed standard positions shall be located, and the fitting conditions of the drawing tools 20 and 30 are controlled so that the working standard positions are matched to the optical axis 71 of the light applied from the light emitter 70. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a drawing apparatus that performs a drawing process on a workpiece such as a pipe or a bar, and particularly relates to a drawing apparatus that can adjust the attachment state of a drawing tool such as a die.

  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 so-called craftsman's experience and intuition of making adjustments based on the shape of the sample after drawing.

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 complicated procedure, and it is necessary to stop the production for several hours or more in order to adjust the drawing shaft. In addition, since the light emitter is attached on the basis of the outer periphery of the die, not the processing surface (bearing portion) inside the die, the position of the outer periphery of the die relative to the processing surface inside the die and the variation in dimensional accuracy Therefore, there is a problem that 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 this invention is to provide the means which can adjust a drawing axis | shaft easily and can obtain a highly accurate drawing product.

The present invention provides the following means. That is,
[1] 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 for running the puller;
A light emitter provided in the puller so as to irradiate a light beam toward a position where the predetermined processing reference position should be located when the drawing tool is properly attached;
A drawing tool attachment adjusting means for adjusting an attachment state of the drawing tool so that a light beam emitted from the light emitter is emitted to the processing reference position of the drawing tool;
A drawing apparatus characterized by comprising:

  [2] The drawing apparatus according to [1], wherein the machining reference position is set inside an area occupied by a workpiece passing through the drawing tool.

  [3] The drawing apparatus according to [1], wherein the machining reference position is set at a center position of a workpiece passing through the drawing tool.

  [4] The drawing apparatus according to the above item 2 or 3, further comprising a drawing tool target that is detachably attached to the drawing tool and indicates the processing reference position.

[5] The light emitter is provided in front of the chuck in the drawing direction,
Any of the preceding items 2 to 4, further comprising an optical axis adjusting means for adjusting an optical axis of the light emitter so that a light beam emitted from the light emitter passes through a predetermined gripping reference position in the chuck. A drawing apparatus according to any one of the above.

  [6] The drawing apparatus according to [5], further comprising a chuck position target that is detachably attached to the chuck and indicates the gripping reference position.

  [7] The drawing apparatus according to [6], wherein the chuck position target is attached by being gripped by the chuck.

  [8] The drawing apparatus according to [1], wherein the machining reference position is set outside an area occupied by a workpiece passing through the drawing tool.

  [9] The drawing apparatus according to [8], wherein a plurality of light emitters are attached to the puller, and a plurality of light beams are irradiated from the plurality of light emitters.

  [10] The drawing apparatus according to [8] or [9], wherein the drawing tool is provided with a machining reference position target indicating the machining reference position.

  [11] The drawing apparatus according to [10], wherein the processing reference position target is provided so as not to be removed from the drawing tool even when drawing is performed.

  [12] The drawing apparatus according to [10], wherein the processing reference position target is formed integrally with the drawing tool.

  [13] The processing tool attachment adjusting means can adjust the position and direction of the processing reference axis so that the light beam emitted from the light emitter passes through a predetermined processing reference axis including the processing reference position. 13. The drawing apparatus according to any one of items 1 to 12 above.

  [14] The drawing apparatus according to any one of [1] to [13], wherein the light emitter emits laser light.

  [15] The method for adjusting the attachment state of the drawing tool according to any one of items 1 to 14, wherein the drawing tool is a die for processing an outer surface of a workpiece.

  [16] The method for adjusting the attachment state of the drawing tool according to any one of the above items 1 to 15, wherein the drawing tool is a plug for machining an inner surface of a cylindrical workpiece.

[17] 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
The light emitter provided in the puller irradiates light toward the position where the predetermined processing reference position should be located when the drawing tool is properly attached,
A method for adjusting the attachment state of the drawing red tool, wherein the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter is emitted to the processing reference position of the drawing tool.

  [18] A drawn product manufactured by the drawing apparatus according to any one of items 1 to 16.

  [19] A pipe material manufactured by the drawing apparatus according to any one of items 1 to 16.

  [20] A photosensitive drum substrate manufactured by the drawing apparatus according to any one of items 1 to 16.

[21] In a drawing apparatus that performs drawing by holding the tip of a workpiece passing 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 emitted from a light emitter provided in the puller prior to the drawing process.

[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 chuck position target used for adjustment of
Removably attached to the chuck by gripping the chuck,
A chuck position target characterized by indicating whether or not a light beam emitted from a light emitter provided in front of the chuck in the drawing direction passes through a predetermined gripping reference position in the chuck.

[23] A drawing tool for use in a drawing apparatus that performs a drawing process 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 machining reference position target indicating a machining reference position set outside the position of the workpiece passing through the drawing tool is integrally formed,
The drawing tool, wherein the processing reference position target indicates whether or not the drawing tool is properly attached by being irradiated with a light beam from a light emitter provided in the puller.

  [24] The drawing tool according to item 23, wherein the plurality of processing reference position targets are integrally formed.

  According to the drawing apparatus according to the invention [1], 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 a rail for running the puller. And a light emitter provided in the puller so as to irradiate a light beam toward a position where the predetermined processing reference position should be located when the drawing tool is properly attached, and irradiation from the light emitter. And a drawing tool attachment adjusting means for adjusting the attachment state of the drawing tool so that the processed light beam is irradiated to the processing reference position of the drawing tool. By irradiating with a light beam, it is possible to easily determine whether the attachment state of the drawing tool is appropriate, and to easily adjust the attachment state of the drawing tool according to this light beam. Can. As a result, it is possible to contribute to reliable production of a highly accurate drawn product.

  According to the drawing apparatus according to the invention [2], since the machining reference position is set inside the area occupied by the workpiece passing through the drawing tool, the drawing is performed with reference to the area through which the workpiece passes during drawing. The attachment state of the processing tool is adjusted, and the attachment state of the drawing tool can be adjusted more accurately.

  According to the drawing apparatus according to the invention [3], since the processing reference position is set to the center position of the workpiece passing through the drawing tool, the drawing operation is performed based on the center position of the workpiece during the drawing processing. The attachment state of the tool is adjusted, and the attachment state of the drawing tool can be adjusted more accurately.

  According to the drawing apparatus according to the invention [4], since the drawing tool target detachably attached to the drawing tool and indicating the machining reference position is provided, the drawing tool position target is removed when the drawing process is executed. It is possible to easily determine that the light beam irradiated from the light emitter is irradiating the processing reference position while preventing interference with the workpiece.

  According to the drawing apparatus according to the invention [5], the light emitter is provided in front of the chuck in the drawing direction so that a light beam emitted from the light emitter passes through a predetermined gripping reference position on the chuck. Since the optical axis adjustment means for adjusting the optical axis of the light emitter is provided, the attachment state of the drawing tool can be accurately adjusted based on the light beam adjusted so as to surely pass the gripping reference position of the chuck. It can be carried out.

  According to the drawing apparatus according to the invention [6], since the chuck position target that is detachably attached to the chuck and indicates the gripping reference position is provided, the light emitted from the light emitter passes through the gripping reference position. It can be easily distinguished.

  According to the drawing apparatus according to the invention [7], the chuck position target is attached by being held by the chuck, so that the chuck position target is attached to an accurate position under the same conditions as the workpiece during the drawing process. be able to.

  According to the drawing apparatus according to the invention [8], since the processing reference position is set outside the region occupied by the workpiece passing through the drawing tool, the drawing tool does not interfere with the workpiece. The mounting state can be adjusted.

  According to the drawing apparatus according to the invention [9], a plurality of light emitters are attached to the puller, and a plurality of light beams are emitted from the plurality of light emitters. Therefore, more accurately according to the plurality of light beams. The attachment state of the drawing tool can be adjusted.

  According to the drawing apparatus according to the invention [10], since the drawing tool is provided with a processing reference position target indicating the processing reference position, a light beam emitted from the light emitter irradiates the processing reference position. It is possible to easily determine whether or not

  According to the drawing apparatus according to the invention [11], since the processing reference position target is provided so as not to be removed from the drawing tool even during the drawing process, the drawing process is performed while the drawing process is being executed. It is possible to quickly shift to the adjustment of the mounting state of the tool, and conversely to shift from the adjustment of the mounting state of the drawing tool to the execution of the drawing process.

  According to the drawing apparatus according to the invention [12], since the processing reference position target is formed integrally with the drawing tool, a portion of the drawing tool to process the workpiece and the processing reference position target The positional relationship can be accurately set, and thereby the adjustment of the attachment state of the drawing tool can be more reliably performed.

  According to the drawing apparatus according to the invention [13], the processing tool attachment adjusting means performs the processing so that the light beam emitted from the light emitter passes through a predetermined processing reference axis including the processing reference position. Since the position and direction of the reference shaft can be adjusted, the attachment state of the drawing tool can be adjusted appropriately.

  According to the drawing apparatus according to the invention [14], since the light emitter emits laser light, the wavelengths of the light beams are uniformed, so that it is easy to handle.

  According to the method for adjusting the attachment state of the drawing tool according to the invention [15], the attachment state can be adjusted for a die for machining the outer surface of the workpiece, and a highly accurate drawing process can be performed. it can.

  According to the method for adjusting the attachment state of the drawing tool according to the invention [16], the attachment state can be adjusted for a plug for machining the inner surface of the cylindrical workpiece, and a highly accurate drawing process is executed. can do.

  According to the drawing tool attachment state adjusting method according to the invention [17], the predetermined machining reference position should be positioned when the drawing tool is properly attached by the light emitter provided in the puller. Since the light source is irradiated toward the position, and the attachment state of the drawing tool is adjusted so that the light emitted from the light emitter is irradiated to the processing reference position of the drawing tool. It is possible to easily determine whether or not the attachment state of the drawing tool is appropriate by the light beam emitted from the provided light emitter, and to easily adjust the attachment state of the drawing tool according to the light beam. As a result, it is possible to contribute to reliable production of a highly accurate drawn product.

  According to the drawing product according to the invention [18], since it is manufactured by the drawing device, high accuracy can be surely 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 apparatus, a high precision is reliably acquired and it can utilize suitably for a various use.

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

  According to the die axis target according to the invention [21], the light beam is detachably attached to the die by being fitted in the die, and is irradiated from a light emitter provided in the puller prior to the drawing process. Since this indicates the predetermined processing reference axis in the die, it can be easily determined that the light beam emitted from the light emitter is irradiating the processing reference axis, contributing to the manufacture of high-precision drawn products. can do.

  According to the chuck position target according to the invention [22], the light beam emitted from the light emitter attached to the chuck detachably by being held by the chuck and provided in front of the chuck in the pulling direction is In order to indicate whether or not the chuck passes through a predetermined gripping reference position, it can be easily determined that the light beam emitted from the light emitter irradiates the gripping reference position. Can contribute to manufacturing.

  According to the drawing tool according to the invention [23], the machining reference position target indicating the machining reference position set outside the position of the workpiece passing through the drawing tool is integrally formed, and the machining reference position is formed. The target is irradiated with light from a light emitter provided on the puller to indicate whether or not the drawing tool is properly attached. The positional relationship of the reference position target can be set accurately, and thereby the adjustment of the attachment state of the drawing tool can be reliably performed.

  Further, in such a drawing tool, when the plurality of processing reference position targets are integrally formed, the positions of the plurality of processing reference position targets are determined according to the plurality of light beams emitted from the light emitter. By adjusting this, it is possible to adjust the attachment state of the drawing tool more accurately.

(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 this embodiment, 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. That is, in this embodiment, the processing reference axis 21 is set at the center position of the workpiece 90 inside the area occupied by the workpiece 90 passing through the die 20 that is a drawing tool.

  As shown in FIG. 1, the dice 20 is attached to the dice frame 24 via a dice holder 22 and a spherical holder 23. The die frame 24 is provided on 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 provided in the die frame 24 and is fixed to the die frame 24 by 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.

  The adjustment of the mounting state of the die 20 is performed prior to the actual drawing process, so that bending or uneven thickness of the workpiece 90 after drawing is prevented.

<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. This mark functions as a drawing tool target. That is, in this embodiment, the processing reference position is set to the center position of the workpiece 90 inside the area occupied by the workpiece 90 passing through the plug 30 that is a drawing tool.

  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.

  The adjustment of the mounting state of the plug 30 is performed prior to the actual drawing process, so that bending or uneven thickness of the workpiece 90 after drawing is prevented.

<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 the tip 91 of the workpiece 90 is gripped and pulled, 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 431 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 motion of the interlocking piece 431. With this structure, the pair of chuck blocks 42 and 42 are normally separated from each other by the urging means 432, while the air cylinder 433 causes them to approach each other so that the tip 91 of the workpiece 90 is appropriately chucked. 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.

  In the first embodiment, since the space behind the chuck 40 is vacant as described above, when the mounting state of the die 20 and the plug 30 is adjusted, as will be described later, the front side of the chuck 40 in the drawing direction. The laser beam emitted from the laser light source 70 provided on the puller 50 (on the right side in FIG. 6) is irradiated to the gripping center position A of the chuck 40, and the die 20 is processed by the laser beam passing through the gripping center position A. The reference axis (die axis) 21 and the processing reference position 311 of the plug 30 can be irradiated.

  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 is provided on the puller 50 and irradiates a laser beam toward the die 20 and the plug 30 which are drawing tools, and is used for adjusting the mounting state of the die 20 and the plug 30 performed prior to the drawing process. It is what 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). The chuck 40 is irradiated with laser light from behind, and the processing reference axis (die axis) 21 of the die 20 and the processing reference position 311 of the plug 30 are set by laser light passing through the gripping center position A of the chuck 40. It can be irradiated.

  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 attachment state of the drawing tool (die 20 and plug 30) is usually performed prior to the actual drawing process on the workpiece 90. It is also possible to check or adjust whether or not the mounting state is not correct even during the process of drawing a plurality of workpieces 90 in order.

  This adjustment procedure includes a preliminary process in which the optical axis 71 of the laser light source (light emitter) 70 is aligned with the extraction shaft 41 of the chuck 40 in advance, and a die (drawing addition) on the optical axis 71 of the laser light source (light emitter) 70. A tool) 20 and a machining reference position 311 of the plug (drawing tool) 30 are respectively adjusted.

  In the preliminary process, the optical axis 71 of the laser light source 70 is adjusted so that the laser beam emitted from the laser light source 70 irradiates the gripping center position A (grip reference position) of the chuck 40 and visualizes the extraction shaft 41. .

  In this preliminary process, first, it is confirmed that the irradiation direction of the optical axis 71 of the laser light source 70 is parallel to the traveling direction of the puller 50. Specifically, the laser beam is irradiated from the laser light source 70, the puller 50 is run on the rail 60, and the attachment angle of the light source body 72 of the laser light source 70 is attached so that the position irradiated with the laser light does not change. Adjustment may be performed by the angle adjustment mechanisms 731 and 732. In addition, when the direction of the optical axis 71 of the laser light source 70 is adjusted in advance and the direction is firmly fixed, the confirmation of the direction of the light source 71 may be omitted.

  Subsequently, it is confirmed that the optical axis 71 of the laser light source 70 passes through the grip center position (grip reference position A) of the chuck 40. For this confirmation, a chuck position target 80 for visually indicating the grip center position (grip reference position) A of the chuck 40 is used. By using such a chuck position target 80, it is possible to easily and reliably determine that the laser beam is irradiating the grip center position A of the chuck 40 under the same conditions as those of the workpiece during the drawing process.

  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.

  Confirmation and adjustment that the optical axis 71 of the laser light source 70 passes through the grip center position (grip reference position) A of the chuck 40 irradiates the mark 83 of the chuck position target 80 indicating the grip center position A with the laser beam. As described above, the mounting position (light beam irradiation position) of the light source body 72 of the laser light source 70 may be adjusted by the vertical slide mechanism 741 and the horizontal slide mechanism 742.

  With the above preliminary process, when the puller 50 travels on the rail 60, the extraction 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. Visualized by laser beam.

  If the optical axis 71 of the laser light source 70 is adjusted and fixed firmly in advance, the above preliminary process itself may be omitted.

  The adjustment process performed subsequently is the processing reference position 311 of the processing reference axis 21 of the die (drawing tool) 20 and the plug (drawing tool) 30 with respect to the optical axis 71 of the laser light source 70 coincident with the drawing axis 41. This is a step of adjusting the mounting state of these dies 20 and plugs 30 so that they match.

  In this adjustment 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 adjustment 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.

  Through the above steps, the machining reference axis (die axis) 21 of the die 20 and the drawing shaft 41 that is the locus of the grip center position of the chuck 40 coincide with each other, and the machining reference position 311 of the plug 30 is positioned on the drawing shaft 41. Thus, it is possible to obtain an appropriate state of attaching the drawing tool.

  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 apparatus 10 according to the first embodiment, by irradiating a laser beam from the laser light source 70 provided in the puller 50, it is possible to easily determine whether the mounting state of the die 20 or the plug 30 is appropriate. The mounting state can be easily adjusted according to the laser beam. As a result, it is possible to reliably manufacture a highly accurate drawn product without bending or uneven thickness.

  Further, since the laser light source 70 is directly attached to the puller 50 and the drawing process is performed while the laser light source 70 is provided as it is, the laser light source is used when an abnormality occurs in the processed workpiece or when there is a concern. By irradiating the laser beam from 70, it is possible to immediately confirm the mounting state of the drawing tool.

  In particular, when the die 20 is replaced, it is possible to immediately check and adjust the mounting state, thereby improving work efficiency.

  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 processing reference axis of the die 20 that is a drawing tool and the processing reference position 311 of the plug 30 are set inside the region occupied by the workpiece 90, whereas in the second embodiment, the drawing addition is performed. The machining reference axis (machining reference position) 26 of the die 20 ′, which is a tool, is set outside the area occupied by the workpiece 90.

  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 a front view conceptually showing the drawing apparatus 10 ′ according to the second embodiment. FIG. 14 is a front view of the puller 50 ′ of the drawing apparatus 10 ′ of the second embodiment. FIG. 15 is a front view of a die provided in the drawing apparatus 10 ′ according to the second embodiment.

  As shown in FIGS. 13 and 14, in the second embodiment, the laser light sources 70 ′ and 70 ′ are used in the chuck 40 (chuck 40) so that the optical axes 71 ′ and 71 ′ of the laser beam pass above the chuck 40. It is provided at a high position where it does not interfere with the blocks 42, 42). Specifically, the laser light sources 70 ′ and 70 ′ are installed at positions whose optical axes 71 ′ and 71 ′ are higher by H than the extraction shaft that is the locus of the grip center position A of the chuck 40.

  In the second embodiment, the two laser light sources 70 ′ and 70 ′ are provided on the left and right sides by a predetermined distance K, and a plurality of laser beams are irradiated toward the drawing tool (die 20). It has come to be.

  In this embodiment, since the laser beam is not irradiated to the gripping center position A of the chuck 40, the air cylinder 433 ′ constituting the opening / closing mechanism of the chuck blocks 41, 41 is ahead of the chuck blocks 41, 41 in the drawing direction. It has closed the space, but there is no problem.

  As shown in FIGS. 13 and 15, the die 20 ′, which is a drawing tool, includes a die hole 201 including an approach portion 202 and a bearing portion 203, as in the first embodiment described above. Target holes 25 and 25 penetrating in the drawing direction are provided above the die hole 201.

  The target holes 25 and 25 are accurately positioned with respect to the die hole 201 and are formed so that the depth direction of the hole is accurately parallel to the die axis 21 that is the central axis of the bearing portion 203. Yes. Specifically, the target holes 25, 25 are provided at a position higher by H than the die shaft 21 at a predetermined interval K on the left and right. The target holes 25 and 25 function as processing reference position targets indicating the processing reference axes (processing reference positions) 26 and 26 of the die 20 'according to the second embodiment. That is, the die 20 'is configured so that the machining reference position target is integrally formed with the die 20' itself and is not removed from the die 20 'when the drawing process is executed.

  As adjustment of the attachment state of the drawing tool (die 20 ') in the second embodiment, first, the angles and positions of the optical axes 71' and 71 'of the laser light sources 70' and 70 'are set. The optical axes 71 ′ and 71 ′ are set by, for example, actually irradiating laser light from the laser light sources 70 ′ and 70 ′ while running the puller 50, and measuring this using a predetermined measuring device or the like. . Once the optical axes 71 ′ and 71 ′ of the laser light sources 70 ′ and 70 ′ are set accurately, the optical axes 71 ′ and 71 ′ are set by fixing this state. There is no need.

  Subsequently, the mounting state of the drawing tool (die 20 ') is adjusted based on the optical axes 71' and 71 'of the laser light sources 70' and 70 'set in advance in this manner. In the normal adjustment process, it is only necessary to adjust the attachment state of the drawing tool (die 20 ').

  In the second embodiment, as described above, the target holes 25 and 25 that are the processing reference position targets are integrally provided in the die 20 ′, and are not removed from the die 20 ′ even when the drawing processing is executed. Accordingly, the laser light sources 70 'and 70' provided in the puller 50 are turned on to emit laser light, and the laser light penetrates through the target holes 25 and 25 integrally formed in the die 20 '. It can be confirmed whether or not the mounting state of the die 20 ′ is appropriate.

  If the mounting state is not appropriate, the mounting state of the dice 20 'may be adjusted so that the two laser beams are irradiated to the target holes 25 and 25.

  If the two laser beams are irradiated to the target holes 25 and 25 in this way, a state in which the position and angle of the die shaft 21 ′ of the die 20 ′ coincide with the drawing shaft 41 can be obtained.

  As described above, according to the drawing apparatus 10 ′ according to the second embodiment, by irradiating the laser light from the laser light source 70 provided in the puller 50, it is possible to easily determine whether the die 20 ′ is attached properly. The mounting state can be easily adjusted according to the laser beam. As a result, it is possible to reliably manufacture a highly accurate drawn product without bending or uneven thickness.

  Further, since the laser light source 70 is directly attached to the puller 50 and the target holes 25 and 25 indicating the processing reference axes 26 and 26 are integrally formed in the die 20 ′, the processed workpiece is abnormal. When this occurs, or when there is a concern about this, it is possible to immediately confirm the mounting state of the drawing tool by irradiating laser light from the laser light source 70.

  Further, since the processing reference axes 26 and 26 and the laser beam are arranged outside the region occupied by the workpiece 90 being drawn, the drawing tool is used even when the workpiece 90 is actually being drawn. It can be confirmed easily and promptly whether the mounting state of the (die 20 ′) is out of order.

  Further, when the die 20 ′ is replaced, the target holes 25 and 25 are provided in the die 20 ′ itself, so that it is not necessary to prepare and set a separate target or the like, and it is very easy and quick to install. Confirmation and adjustment can be performed to improve work efficiency.

  Therefore, the occurrence of defects can be prevented in advance, and even if a defect occurs, the cause can be investigated and dealt with promptly to reduce the occurrence of the defect.

(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 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.

  (2) In the above embodiment, the laser light source (light emitter) can adjust the angle and position of the optical axis. However, if the laser light source (light emitter) can be irradiated with a light beam parallel to the extraction axis, the optical axis The adjusting mechanism may not be provided.

  (3) 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.

  (4) In the first embodiment, the center position (center axis) of the workpiece being drawn is used as the processing reference position (processing reference axis) of the die 20 and the plug 30 and the gripping reference position of the chuck 40. Although the light beam is irradiated, these reference positions (reference axes) can be set to arbitrary positions as long as they represent the workpiece 90 to be processed.

  (5) In the first embodiment, the fixed plug type that uses the plug 30 that is fixedly supported at a predetermined position by the plug support bar 32 is adopted. However, the floating plug type that is pulled and supported at a fixed position in the drawing direction is adopted. It may be adopted. 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 second embodiment, two light emitters (laser light sources) are provided as a configuration for irradiating a light beam in the outer region of the work, but two light beams are used. However, one light emitter is used. Or three or more. Further, the arrangement of the light emitters is not limited to the arrangement arranged on the left and right, and various arrangements can be adopted.

  (7) In the second embodiment, the target holes 25 and 25 that function as the machining reference position target are integrally formed in the die 20 ′. However, if the machining reference position target can indicate the machining reference position, It may be a configuration. For example, it may be a target member attached to the die 20 '. Further, the machining reference position target may be detected by an electric signal or the like as to whether or not the processing reference position target is attached. Specifically, for example, an optical sensor or the like may be provided at the rear of the target holes 25 and 25 in the drawing direction so that the presence or absence of laser light incident in parallel to the target holes 25 and 25 may be determined.

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 front view which shows notionally the drawing processing apparatus concerning 2nd Embodiment. It is a front view of the puller of the drawing apparatus of 2nd Embodiment. It is a front view of the die | dye with which the drawing apparatus concerning 2nd Embodiment is provided. 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)
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)
30 plug (drawing tool)
311 Machining reference position (plug position)
40 Chuck 41 Pull-out shaft 50 Puller 60 Rail 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)

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 for running the puller;
A light emitter provided in the puller so as to irradiate a light beam toward a position where the predetermined processing reference position should be located when the drawing tool is properly attached;
A drawing tool attachment adjusting means for adjusting an attachment state of the drawing tool so that a light beam emitted from the light emitter is emitted to the processing reference position of the drawing tool;
A drawing apparatus characterized by comprising:   The drawing processing apparatus according to claim 1, wherein the processing reference position is set inside an area occupied by a workpiece passing through the drawing tool.   The drawing processing apparatus according to claim 1, wherein the processing reference position is set to a center position of a workpiece passing through the drawing tool.   4. The drawing apparatus according to claim 2, further comprising a drawing tool target that is detachably attached to the drawing tool and indicates the processing reference position. The light emitter is provided in front of the chuck in the pulling direction,
The optical axis adjusting means for adjusting the optical axis of the light emitter is provided so that the light beam emitted from the light emitter passes through a predetermined gripping reference position in the chuck. The drawing apparatus according to any one of the above.   The drawing apparatus according to claim 5, further comprising a chuck position target that is detachably attached to the chuck and indicates the gripping reference position.   The drawing apparatus according to claim 6, wherein the chuck position target is attached by causing the chuck to hold the chuck position target.   The drawing processing apparatus according to claim 1, wherein the processing reference position is set outside an area occupied by a workpiece passing through the drawing tool.   9. The drawing apparatus according to claim 8, wherein a plurality of light emitters are attached to the puller, and a plurality of light beams are irradiated from the plurality of light emitters.   The drawing apparatus according to claim 8 or 9, wherein the drawing tool is provided with a machining reference position target indicating the machining reference position.   The drawing processing apparatus according to claim 10, wherein the processing reference position target is provided so as not to be removed from the drawing tool even when a drawing process is executed.   The drawing processing apparatus according to claim 10, wherein the processing reference position target is integrally formed with the drawing tool.   The processing tool attachment adjusting means is capable of adjusting the position and direction of the processing reference axis so that the light beam emitted from the light emitter passes through a predetermined processing reference axis including the processing reference position. The drawing apparatus according to any one of claims 1 to 12,   The drawing device according to claim 1, wherein the light emitter emits laser light.   15. The method for adjusting an attachment state of a drawing tool according to claim 1, wherein the drawing tool is a die for machining an outer side surface of a workpiece.   The method for adjusting the attachment state of the drawing tool according to any one of claims 1 to 15, wherein the drawing tool is a plug for machining an inner surface of a cylindrical workpiece. 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,
The light emitter provided in the puller irradiates light toward the position where the predetermined processing reference position should be located when the drawing tool is properly attached,
A method for adjusting the attachment state of the drawing tool, wherein the attachment state of the drawing tool is adjusted so that the light beam emitted from the light emitter is emitted to the processing reference position of the drawing tool.   A drawn product manufactured by the drawing apparatus according to any one of claims 1 to 16.   A pipe material manufactured by the drawing apparatus according to any one of claims 1 to 16.   A photosensitive drum substrate manufactured by the drawing apparatus according to claim 1. 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 emitted from a light emitter provided in the puller prior to the drawing process. 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 characterized by indicating whether or not a light beam emitted from a light emitter provided in front of the chuck in the drawing direction passes through a predetermined gripping reference position in the chuck. A drawing tool used in a drawing apparatus that performs a drawing process by gripping the 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 machining reference position target indicating a machining reference position set outside the position of the workpiece passing through the drawing tool is integrally formed,
The drawing tool, wherein the processing reference position target indicates whether or not the drawing tool is properly attached by being irradiated with a light beam from a light emitter provided in the puller. The drawing tool according to claim 23, wherein the plurality of processing reference position targets are integrally formed.

Images