ISO-8526-1-1990.pdf
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1、INTERNATIONAL STANDARD IS0 8526-l First edition 1990-06-15 Modular units for machine tools - Workholding pallets - Part 1: Workholding pallets up to 800 mm nominal size .%ments standards pour machines-outils - Palettes - Partie 1: Palettes Porte-pi - type 2: surface with T-slots see figure 2b)l; - t
2、ype 3: surface with T-slots and cross-tenons see figure 211; - type 4: plain surface (see figure 5); - type 5: surface with radial T-slots (see figure A.1 1; - type 6: surface with twin radial T-slots (see figure A.2). 5.4 Centre hole A centre hole shall be provided and may be used as a reference ho
3、le for work positioning on the pallet and/or as a reference hole for pallet manufacturing (see figure 1). The depth of the counterbore, da, if present, shall always be greater than the depth of the central tenon slot of the pallet. 5.5 Alignment hole An alignment hole, ds, may be provided for use in
4、 positioning the workpiece or fixture on the pallet and/or as a reference hole for pallet manufacturing purposes (see figure 1). NOTE - It is necessary to provide means of preventing ingress of swarf and coolant to the bottom surface. 6 Location of workpiece Workpieces or fixtures shall be located o
5、n the top surface by one of the following methods: a) by means of edge locators (see figure 4 and table 3); NOTE - For type 2 and type 3 top surfaces, the mounting holes for the edge locators are at the discretion of the manufacturer. The positions of the fixing holes for the fixture should be the s
6、ame as those shown in figure 4. b) by means of a centre hole and an associated alignment hole (where the top surface of the pallet has threaded holes) see figure 2a)l; c) by means of a centre hole and a reference slot (where the top surface of the pallet has T-slots) see figure 2b)l; d) by means of
7、two perpendicular tenon (crossed-tenon) slots see figure 2c)l; e) by means of two straight-through location holes, ds or d,c (see figure 3, sections X-X and Z-Z). NOTES 1 It is necessary to provide means of preventing ingress of swarf and coolant to the bottom surface. 2 The straight-through feature
8、 is optional. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:51:09 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8626-l : 1880 (E) 7 Bottom
9、surface - the pitch of its T-slots or threaded holes; 7.1 Location of pallet on the receiver (on the machine tool) Location of the pallet on the receiver shall be by means of one of the following methods (see figure 3): a) by two cylindrical holes on the pallet (see figure 3, sec- tion X-X) and two
10、cylindrical pins on the receiver; b) by two tapered holes on the pallet (see figure 3, section Z-Z) and two tapered pins on the receiver. 7.2 Shape and dimensions - the method of workpiece location see clause 6, a) to e)l; - the method of locating the pallet on the receiver see 7.1, a) and b)l. EXAM
11、PLE Designation of a square pallet, of nominal size and length 500 x 500, with top surface type 2, with 100 mm pitch of T-slots, with workpiece location by means of centre hole and reference slot cl, and pallet location on the receiver by means of cylindrical holes a) : The shape and dimensions of t
12、he bottom surface are given in figure 3 and table 2. IS0 6626-l - 600 x 500-2-100-c-a EXAMPLE 8 Designation of pallets The designation of a pallet is given by Designation of a rectangular pallet, of nominal size and length 500 x 630, with top surface type 2, with 100 mm pitch of T-slots, with workpi
13、ece location by means of centre hole and - the number of this part of IS0 8526; reference slot cl, and pallet location on the receiver by means of tapered holes b): - its nominal size and length, al x al or a, x a2; - its top surface type (see 5.3); IS0 6626-l - 600 x 630-2-100-c-b 3 Copyright Inter
14、national Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:51:09 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO8526-1:1990(E) Dimensions and tolerances of location and or
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- ISO 8526 1990
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