JP2007007778A - Tape lapping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape lapping device, in which a tape take-up holder is not driven by a motor shaft inserted in the hole of each cartridge side surface, a tape supply holder and the tape take-up holder are not exposed, and adhesion of foreign matters such as coolant or cutting chips or the like to a polishing agent coating tape during machining does not cause an adverse effect on machining accuracy requiring extremely accurate micro finishing. <P>SOLUTION: An integrated type cassette shoe assembly 11 is provided with covers 19a, 19b, 19c, 19d, 19' in an integrated type cassette body 20 housing a tape supply holder of the tape holder integral type cassette shoe assembly 11 and the tape take-up holder 7. The covers 19a, 19b are for side surface covers of the integral type cassette body 20, covers 19c, 19d are for arm base part cover, and cover 19' is for an upper cover. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a relatively incompressible abrasive-coated tape, and a relatively rigid material that contacts and presses the surface of a workpiece such as a steel pipe or automobile part having a processed surface that is rotated. The present invention relates to a tape wrap apparatus comprising a shoe assembly having a concave surface, and using an abrasive-coated tape to microfinish the surface of a workpiece with extremely high precision, and in particular, a pair of opening and closing members that support the shoe assembly in the tape wrap apparatus The present invention relates to a tape wrap device having a tape holder integrated cassette shoe assembly in which an arm, a tape supply holder, and a tape take-up holder are assembled as an integrally replaceable cassette.

It consists of a conventional relatively incompressible abrasive-coated tape and a pair of shoe assemblies having a rigid concave surface that presses the tape-coated surface in contact with the workpiece surface. An example of a tape wrap device that microfinishes the surface of a workpiece extremely precisely is disclosed in Patent Document 1, for example. This is a honing grindstone that uses polyester tape as the abrasive covering tape, and the concave surface of the shoe assembly is relatively rigid (the rigid surface has a hardness exceeding the value of 90 durometer A) and is precisely processed. It is known to use an insert stone made of a material and precisely transfer a stone arc surface processed with a jig borer to the surface of the workpiece with high precision.
Japanese Patent Publication No. 5-9225 JP-A-8-257889

  Each stone forming the rigid concave surface of the shoe assembly of such a conventional film wrap apparatus is manufactured according to the work piece shaft diameter or shaft width, and the interval between the adjacent work piece shafts. Since it is limited to machining only the shaft diameter or shaft width, the interval between adjacent workpiece axes, if there is a difference in the shaft diameter or shaft width of the workpiece, the interval between the axes, a plurality of A setup change is required to change to a shoe assembly having a stone that forms a rigid concave surface, and the setup change time is long, which has been a factor in reducing the operating rate of the film wrap apparatus. Furthermore, when processing different kinds of workpieces having different shaft diameters or shaft widths and intervals between the workpieces at random, it is necessary to add a processing arm or a processing station. In Patent Document 2, a cartridge storage chamber is formed at the tip of a pair of opening and closing arms, and each cartridge is stored in each cartridge storage chamber so as to face each other, and each cartridge supplies an abrasive covering tape as a tape supply. A holder and a tape take-up holder are held by being wound, and a shoe that presses the abrasive-coated tape against the work piece is provided, and different width dimensions can be held. Since it is driven by a motor shaft inserted into the side hole, the side cover cannot be provided. For this reason, the tape supply holder and the tape take-up holder are exposed, and foreign matters such as coolant and cutting chips adhere to the abrasive-coated tape being processed, adversely affecting the processing accuracy that requires extremely precise microfinishing. .

  The problem of the present invention is that the tape take-up holder is not driven by the motor shaft inserted into the hole on the side of each cartridge, the tape supply holder and the tape take-up holder are not exposed, and the coolant and swarf It is an object of the present invention to provide a tape wrap device in which foreign matter such as the above adheres to an abrasive-coated tape being processed and does not adversely affect processing accuracy that requires extremely precise microfinishing.

  For this reason, the present invention is fixed to a relatively incompressible abrasive-coated tape and a pair of opening and closing arms that contact and press the abrasive-coated surface of the tape against the workpiece surface of a shaft object such as a crankshaft. In a tape wrap apparatus including a shoe assembly having a relatively rigid concave surface, a pair of opening / closing arms, a tape supply holder, and a tape take-up holder that support the shoe assembly are assembled as an integrally replaceable cassette. A tape wrap having a tape holder integrated cassette shoe assembly, wherein a cover is provided on the integrated cassette body housing the tape supply holder and the tape take-up holder of the tape holder integrated cassette shoe assembly. By providing an apparatus, the above-described problems of the conventional products have been solved.

  With this configuration, the tape holder integrated cassette shoe assembly is assembled, in which the pair of opening / closing arms that support the shoe assembly, the tape supply holder, and the tape take-up holder are assembled as an integrally replaceable cassette. Since the take-up holder is not driven by the motor shaft inserted into the hole on the side surface of each cartridge, a cover can be provided on the integrated cassette body containing the tape supply holder and the tape take-up holder of the cassette shoe assembly. The tape supply holder and the tape take-up holder will not be exposed, and foreign matter such as coolant and chips will adhere to the abrasive coating tape being processed, adversely affecting processing accuracy that requires extremely precise microfinishing. A tape wrap device without any problem was provided.

  Preferably, the cover provided on the integrated cassette body includes a side cover, an arm base cover, and a top cover. Moreover, the inspection of the tape supply holder and the tape take-up holder is facilitated by using either or both of the side covers provided on the integrated cassette body as a transparent cover.

  An example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a tape holder in which a pair of open / close arms, an arm open / close device, a tape supply holder, and a tape take-up holder for supporting a shoe assembly of a tape wrap device according to an embodiment of the present invention are assembled as an integrally replaceable cassette FIG. 2 is a schematic perspective view of the integrated cassette shoe assembly, showing the integrated cassette shoe assembly removed from the machine body and the arm opened, and FIG. 2 showing the machine body to which the integrated cassette shoe assembly of FIG. FIG. 3 shows details of a cover of the integral cassette shoe assembly of FIG. FIG. 4 shows a state in which the integrated cassette shoe assembly of FIG. 1 is attached to the machine body of FIG. 2 and the arm is closed. FIG. 5 (a) shows a state in which the arm of FIG. 4 is closed, the tape supply holder and the tape take-up holder on the back side of the integrated cassette shoe assembly, and the tape supply holder drive unit G and the tape take-up holder drive unit. 4 is a rear elevational view showing 90 in a state where the rear side surface cover 19b of FIG. 4 is removed, (b) is an enlarged view of the unwinding roller part of the tape supply holder driving part G of (a), and (c) is 2 FIG. 6 (a) shows the unwinding roller unwinding position where the link 40 is moved by the chain line, and FIG. 6 (a) shows the state where the integrated cassette shoe assembly of FIG. 1 is in the standby position by the automatic tool changer. (A) shows a state when the integrated cassette shoe assembly in the state of (a) is attached to the machine body of FIG. 2 by an automatic tool changer.

  As shown in FIGS. 1 to 6, the tape wrap device according to the embodiment of the present invention includes a relatively incompressible abrasive-coated tape 5 and a tape-coated object such as a crankshaft on the abrasive-coated surface of the tape 5. Workpiece 3 Supports a pair of shoe assemblies 2 and 2 in a tape wrap apparatus including a pair of opening and closing arms 15 and 15 having a relatively rigid concave surface 17 fixed to the surface to contact and press the workpiece 3 A pair of open / close arms 15 and 15, an arm open / close device 46, a tape supply holder 6 and a tape take-up holder 7, and a tape supply holder drive part G and a tape take-up holder drive part 90 as an integrally replaceable cassette The tape holder integrated cassette shoe assembly 11 is assembled. The integrated cassette shoe assembly 11 includes an arm opening / closing device 46 of the tape holder integrated cassette shoe assembly 11, a tape supply holder 6, a tape take-up holder 7, and a tape supply holder drive unit G and a tape take-up holder drive. The cover 19a, 19b, 19a, 19b, the unit 90 (the arm opening / closing device 46, the tape supply holder driving unit G, and the tape take-up holder driving unit 90 do not have to be accommodated integrally) 19c, 19d, 19 'are provided. The covers 19a and 19b are side covers of the integrated cassette body 20, the covers 19c and 19d are arm base covers, and 19 'is a top cover. The side cover 19a, 19b, the arm base cover 19c, 19d, and the top cover 19 ′ can protect the device in the main body 20 more completely. By making one or both of the side covers 19a and 19b transparent, inspection of the tape supply holder and the tape take-up holder is facilitated.

  In the embodiment of the present invention, the tape holder integrated cassette shoe assembly in which the pair of opening / closing arms, the tape supply holder, and the tape take-up holder for supporting the shoe assembly are assembled as an integrally replaceable cassette in this embodiment. And the tape take-up holder is not driven by the motor shaft inserted into the hole on the side surface of each cartridge, so that the tape supply holder of the cassette shoe assembly and the integrated cassette main body containing the tape take-up holder are accommodated. A cover can be provided, the tape supply holder and tape take-up holder are not exposed, and foreign materials such as coolant and chips adhere to the abrasive coating tape being processed, and processing that requires extremely precise micro-finishing A tape wrap device that does not adversely affect accuracy is provided.

  In the embodiment of the present invention, the arm opening / closing device 46 includes the clamp shaft 45 for the arm opening / closing device 46, the opening 24 for the clamp shaft, the back guide portions 14, 14 for attaching the integrated cassette shoe assembly 11 to the machine body 50, and the automatic It has replacement positioning back holes 28 and 29 (there may be one), and the integrated cassette shoe assembly mounting surface 12 of the machine main body 50 fits into the clamp shaft 45 protruding from the opening 24. Positioning pins 38, 39 (1) which can be inserted into the automatic replacement positioning rear holes 28, 29 by being urged by the fitted drive shaft 35, rear guide portions 14, 14 accommodating mounting grooves 41, 41 and springs not shown. Individual). 4 is an insert stone formed of a honing grindstone material forming the concave surface 17, 12 is a mounting surface of the integrated cassette shoe assembly 11 of the machine body 50, 20 is an arm opening / closing device 46, a tape supply holder 6 and a tape take-up holder 7 It is the cassette main body which accommodated.

  In the embodiment of the present invention, as shown in FIG. 4, the arm opening / closing device 46 is configured such that when the arm opening / closing device clamp shaft 45 is pushed by the drive shaft 35, the clamp cam 37 is the base 47 of the pair of arms 15, 15. , 47 is pressed to rotate around the shaft 14 to close the pair of arms 15, 15. Reference numerals 19a and 19b denote covers of the cassette body 20 that house the arm opening / closing device 46, the tape supply holder 6 and the tape take-up holder 7. Further, when the clamp shaft 45 is disengaged from the fitting 25, 36 with the drive shaft 35, the first link 27 pushed by the spring 26 has the support shaft 100 as a fulcrum as shown in FIG. The connecting pin 31 fixed to the clamp shaft 45 is pushed to advance to a position 27 ', the clamp cam 37 is moved outward, and the pair of arms 15 and 15 are opened. As shown in FIGS. 1 and 2, the fittings 25 and 36 are semi-annular circular portions, and there are grooves 25 ′ and 36 ′ on the inside. When the integrated cassette shoe assembly 11 is attached, the fittings 25 and 36 are fitted and clamped. The shaft 45 and the drive shaft 35 are connected. Further, as shown in FIG. 5A, when the clamp shaft 45 is pushed by the drive shaft 35 and the pair of arms 15 and 15 are closed, the tape supply holder drive unit G has the connecting pin 31 fixed to the clamp shaft 45 as the first. The tape 5 of a predetermined length is unwound from the tape supply holder 6 of the integrated cassette shoe assembly 11 via the link devices 30 and 40 (FIG. 4 (b)) and the one-way clutch 94, and the tape is taken up simultaneously. The holder driving unit 90 causes the connecting pin 31 to wind the tape 5 of the predetermined length around the tape winding holder 7 of the integrated cassette shoe assembly 11 via the third link devices 30 and 70 and the one-way clutch 94. Has been. Further, in the embodiment of the present invention, as shown in FIG. 6, the integrated cassette shoe assembly 11 has an upper guide portion 16, and the upper guide portion 16 is held at the standby position (a) by the automatic changer 13. In addition, the automatic guide 13 is gripped and transported by the upper guide portion 16 from the standby position (a) to the mounting position of the machine body 50 (b).

  In operation, when the integrated cassette shoe assembly 11 is attached to the mounting position of the machine body 50, as shown in FIGS. 1 and 2, the back guide portions 14 and 14 of the integrated cassette shoe assembly 11 are attached to the machine body. It is inserted into the rear guide portion 14 housing mounting grooves 41 and 41 of the 50 integrated cassette shoe assembly mounting surface 12 and lowered. Next, positioning pins 38 and 39 urged by a spring (not shown) of the machine body 50 are inserted into the automatic replacement positioning rear holes 28 and 29 of the integrated cassette shoe assembly 11, and at the same time, the integrated cassette shoe assembly 11 The clamp shaft 45 projecting from the opening 24 and the drive shaft 35 of the machine main body 50 are fitted and connected by driving. Next, the machine main body 50 moves forward by a Z-axis direction moving device (not shown) and moves to a position where the workpiece 3 of a shaft object such as a crankshaft is gripped between the pair of arms 15 and 15. Then, the drive shaft 35 of the machine body 50 pushes the clamp shaft 45 of the integrated cassette shoe assembly 11 with a drive device (not shown) to close the pair of arms 15 and 15, and the abrasive-coated surface of the tape 5 is the shoe assembly 2 The surface of the workpiece 3 is brought into contact with and pressed through the relatively rigid concave surface 17 and the workpiece 3 is rotated, the surface of the workpiece is tape-wrapped, and the micro-finishing is performed extremely precisely.

Tape holder integrated cassette in which a pair of open / close arms, arm open / close device, tape supply holder and tape take-up holder for supporting a shoe assembly of a tape wrap device according to an embodiment of the present invention are assembled as an integrally replaceable cassette FIG. 2 is a schematic perspective view of the shoe assembly, showing the integrated cassette shoe assembly removed from the machine body and the arm opened. The principal part partial perspective view of the machine main body which attaches the integrated cassette shoe assembly of FIG. 2 shows details of the cover of the integrated cassette shoe assembly of FIG. The integrated cassette shoe assembly of FIG. 1 is attached to the machine body of FIG. 2 and the arm is closed. 4A shows the tape supply holder and the tape take-up holder on the back side of the integrated cassette shoe assembly, and the tape supply holder drive unit G and the tape take-up holder drive unit 90 in a state where the arm of FIG. 4 is closed. 4 is shown with the back side surface cover 19b of FIG. 4 removed, (b) is an enlarged view of the unwinding roller part of the tape supply holder driving part G of (a), and (c) is a two-dot chain line. Shows the unwinding roller unwinding position where the link 40 is moved. 1A shows a state in which the integrated cassette shoe assembly of FIG. 1 is in the standby position by the automatic tool changer, and FIG. 5B shows a state in which the integrated cassette shoe assembly in the state of FIG. The state when it is attached to the machine main body of FIG. 2 depending on the apparatus is shown.

Explanation of symbols

1: Opening / closing arm 2: Shoe assembly 3: Workpiece 5: Abrasive coating tape 6: Tape supply holder 7: Tape take-up holder
11: Integrated cassette shoe assembly 14: Rear guide 15: Open / close arm
19a, 19b: Side cover (cover) 19c, 19d: Base cover (cover)
19 ': Top cover (cover) 20: Integrated cassette body 46: Arm opening / closing device
90: Tape take-up holder drive unit G: Tape supply holder drive unit

Claims (4)

  A relatively incompressible abrasive-coated tape, and a relatively rigid concave surface fixed to a pair of opening and closing arms that press the abrasive-coated surface of the tape into contact with the surface of a workpiece such as a crankshaft. A tape wrap device including a shoe assembly having a tape holder, and a tape holder integrated cassette shoe in which a pair of opening / closing arms, a tape supply holder, and a tape take-up holder that support the shoe assembly are assembled as an integrally replaceable cassette A tape wrap apparatus comprising an assembly and a cover provided on an integral cassette body that accommodates the tape supply holder and the tape take-up holder of the integral cassette shoe assembly.   A relatively incompressible abrasive-coated tape, and a relatively rigid concave surface fixed to a pair of opening and closing arms that press the abrasive-coated surface of the tape into contact with the surface of a workpiece such as a crankshaft. And a pair of opening / closing arms that support the shoe assembly, an arm opening / closing device, a tape supply holder and a tape take-up holder, and a tape supply holder drive unit and a tape take-up holder drive unit. A cassette holder integrated cassette shoe assembly assembled as an integrally replaceable cassette, and an arm opening / closing device of the integrated cassette shoe assembly, the tape supply holder, and the tape take-up holder A tape wrap device characterized in that a cover is provided on the cassette body.   3. The tape wrap apparatus according to claim 1, wherein the cover provided on the integrated cassette body includes a side cover, an arm base cover, and an upper cover.   4. The tape wrap apparatus according to claim 3, wherein either or both of the side covers provided on the integrated cassette main body are transparent covers.

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