CN201997965U - Milling fixture for thin-wall parts of motors - Google Patents
Milling fixture for thin-wall parts of motors Download PDFInfo
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- CN201997965U CN201997965U CN2010206800154U CN201020680015U CN201997965U CN 201997965 U CN201997965 U CN 201997965U CN 2010206800154 U CN2010206800154 U CN 2010206800154U CN 201020680015 U CN201020680015 U CN 201020680015U CN 201997965 U CN201997965 U CN 201997965U
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Abstract
The utility model belongs to machining technology, and relates to a fixture for milling and machining thin-wall parts of motors. The fixture is characterized in that the fixture consists of a base (3), a gland (4), a compression bolt (5) and a positioning pin (6), a cylindrical groove is arranged on the lower surface of the gland (4), a bolt hole (4a) is arranged at the center of the upper surface of the gland (4), six groups of center boss cutter back-off grooves and left and right boss cutter back-off grooves (4c) are arranged on the peripheral edge of the upper surface of the gland (4), six flange rectangular groove cutter back-off grooves (4d) are arranged on an outer cylindrical surface of the gland (4), a gland positioning pin hole (4e) is arranged on the upper surface of the gland (4), the base (3) is a step shaft consisting of a mandrel section (3a), a positioning section (3b) and a clamping section (3c), a threaded blind hole (3d) and a base positioning pin blind hole (3e) are arranged at the center of the upper surface of the mandrel section (3a), and base center boss cutter back-off grooves, base left and right boss cutter back-off grooves (3g) and base flange rectangular groove cutter back-off grooves (3h) are arranged on the mandrel section (3a). The fixture for milling and machining thin-wall parts of motors has the advantages of being capable of preventing the thin-wall parts from deforming during machining, guaranteeing machining precision and increasing machining yield of the thin-wall parts of the motors.
Description
Technical field
The utility model belongs to machine and adds technology, relates to a kind of anchor clamps that are used for Milling Process motor thin-walled parts.
Background technology
Processed motor thin-walled parts is referring to Fig. 1 and Fig. 2, and Fig. 2 is the vertical view of Fig. 1.This thin-walled parts is the cylinder 1 that a upper port has outward flange limit 2, on the lower port of cylinder 1, there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss 1b, left side boss 1a and right boss 1c form, the height of all rectangular boss is h, left side boss 1a and the expansion spacing of central boss 1b and the expansion spacing of central boss 1b and right boss 1c are L, the spreading width of central boss 1b is t, the spreading width of a left side boss 1a and right boss 1c is s; the sheet metal thickness of thin-walled parts is δ; the axial height of thin-walled parts cylindrical portions may is H; 6 flange rectangular channel 2a that are uniformly distributed along the circumference are arranged on the outward flange limit 2 of thin-walled parts; 6 flange rectangular channel 2a are corresponding one by one with the position of the central boss 1b of 6 groups of rectangular boss respectively; the center line of flange rectangular channel 2a and the centerline collineation of central boss 1b, the axis quadrature of this center line and cylinder 1.Because above-mentioned boss and rectangular channel all have required precision, and the sheet metal thickness δ of thin-walled parts only has about 1mm, adds very easily to be out of shape man-hour, therefore, difficulty of processing is very big, and the qualification rate of processing is very low, only is 1%.
Summary of the invention
The purpose of this utility model is: provide a kind of motor thin-walled parts milling fixture that can prevent the thin-walled parts distortion man-hour, guarantee machining accuracy that adds, to improve the passing rate of processing of motor thin-walled parts.
The technical solution of the utility model is: a kind of motor thin-walled parts milling fixture, be used to process the motor thin-walled parts of following structure, this thin-walled parts is the cylinder that a upper port has the outward flange limit, on the lower port of cylinder, there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss, left side boss and right boss are formed, the height of all rectangular boss is h, the left side boss and the expansion spacing of central boss and the expansion spacing of central boss and right boss are L, the spreading width of central boss is t, the spreading width of a left side boss and right boss is s; the sheet metal thickness of thin-walled parts is δ; the axial height of thin-walled parts cylindrical portions may is H; 6 flange rectangular channels that are uniformly distributed along the circumference are arranged on the outward flange limit of thin-walled parts; 6 flange rectangular channels are corresponding one by one with the position of the central boss of 6 groups of rectangular boss respectively; the center line of flange rectangular channel and the centerline collineation of central boss, the axis quadrature of this center line and cylinder; It is characterized in that milling fixture is made up of pedestal, gland, hold-down bolt and alignment pin;
(1) appearance profile of gland is cylindrical, a cylinder shape groove coaxial with gland is arranged on the lower surface of gland, the degree of depth of this cylinder shape groove is H+ ε, ε=0～0.5mm, the internal diameter of this cylinder shape groove cooperates with the crest clearance of cylinder, a bolt hole is arranged at the center of gland upper surface, circumferential edges at the gland upper surface has 6 groups of central boss cutter relieving grooves that are uniformly distributed along the circumference, every group switching centre boss cutter relieving is made up of two measure-alike little fan grooves, on the position of two little fan grooves and the thin-walled parts between left boss and the central boss and the groove between central boss and the right boss corresponding, the expansion spacing of little fan groove is greater than L, the axial depth E of little fan groove＞f+ ε+h, f is the distance of gland upper surface to lower surface cylinder shape groove bottom land, and little fan groove bottom land is to the distance of the gland axis radius less than cylinder; Circumferential edges at the gland upper surface also has 6 left and right sides that be uniformly distributed along the circumference, fan-shaped boss cutter relieving grooves, left and right sides boss cutter relieving groove and 6 group switching centre boss cutter relieving grooves are staggered, the position of left and right sides boss cutter relieving groove is corresponding with groove between right boss and the left boss, the expansion spacing of left and right sides boss cutter relieving groove is greater than the expansion spacing of groove between right boss and the left boss, the axial depth of left and right sides boss cutter relieving groove is E, and the radial depth of left and right sides boss cutter relieving groove is identical with the radial depth of little fan groove; 6 flange rectangular channel cutter relieving grooves that be uniformly distributed along the circumference, that connect are vertically arranged on the external cylindrical surface of gland, flange rectangular channel cutter relieving groove is arranged in the middle of two little fan grooves of central boss cutter relieving groove, the spreading width of flange rectangular channel cutter relieving groove is greater than the spreading width of flange rectangular channel, and the bottom land of flange rectangular channel cutter relieving groove is to the distance of the gland axis radius less than gland lower surface cylinder shape groove; On the gland upper surface, there is a gland dowel hole on the next door of bolt hole;
(2) pedestal is a multidiameter, and it is connected to form by top axle section, the positioning section of centre and the following section of being installed; The internal diameter matched in clearance of the external diameter of axle section and thin-walled parts cylinder, the axial length of axle section equals H+ δ, at the center of axle section upper surface a tapped blind hole is arranged, on tapped blind hole next door, there is a pedestal alignment pin blind hole position corresponding with bolt hole on the gland, the internal diameter of pedestal alignment pin blind hole equals the internal diameter of gland dowel hole; The external diameter of positioning section equates that with the external diameter of gland the external diameter of the section of being installed is less than the external diameter of positioning section; The axle section of pedestal is positioned at the cylinder shape groove of gland lower surface, alignment pin is inserted in gland dowel hole and the pedestal alignment pin blind hole and keeps matched in clearance, hold-down bolt is screwed in the tapped blind hole of pedestal after passing the bolt hole of gland, on axle section upper surface, there are pedestal central boss cutter relieving groove and pedestal left and right sides boss cutter relieving groove in the position corresponding with central boss cutter relieving groove on the gland and left and right sides boss cutter relieving groove, pedestal central boss cutter relieving groove is made up of two little fan grooves of measure-alike pedestal, the planar dimension of the little fan groove of pedestal is identical with little fan groove on the gland, the planar dimension of pedestal left and right sides boss cutter relieving groove is identical with left and right sides boss cutter relieving groove on the gland, the axial depth h1＞h of little fan groove of pedestal and pedestal left and right sides boss cutter relieving groove; On the face of cylinder of positioning section, there is the pedestal flange rectangular channel cutter relieving groove of axial perforation positioning section the position corresponding with flange rectangular channel cutter relieving groove on the gland, the planar dimension of pedestal flange rectangular channel cutter relieving groove is identical with flange rectangular channel cutter relieving groove.
The utility model has the advantages that: add and to prevent thin-walled parts distortion man-hour, guaranteed machining accuracy, improved the passing rate of processing of motor thin-walled parts.Evidence, adopt anchor clamps of the present utility model after, the passing rate of processing of part is brought up to more than 90%.
Description of drawings
Fig. 1 is the structural representation of processed motor thin-walled parts.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is a structural representation of the present utility model.Omitted the CONSTRUCTED SPECIFICATION of the cutter relieving groove on gland 4 and the pedestal 3 among the figure, these detailed structure are expressed by corresponding part drawing.Dotted line among the figure is represented the blank of motor thin-walled parts to be processed.
Fig. 4 is the structural representation of gland 4 in the utility model.
Fig. 5 is the A-A cutaway view of Fig. 4.
Fig. 6 is the structural representation of pedestal 3 in the utility model.
Fig. 7 is the vertical view of Fig. 6.
The specific embodiment
Below the utility model is described in further details.Referring to Fig. 3 to Fig. 7, a kind of motor thin-walled parts milling fixture, be used to process the motor thin-walled parts of following structure, this thin-walled parts is the cylinder 1 that a upper port has outward flange limit 2, on the lower port of cylinder 1, there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss 1b, left side boss 1a and right boss 1c form, the height of all rectangular boss is h, left side boss 1a and the expansion spacing of central boss 1b and the expansion spacing of central boss 1b and right boss 1c are L, the spreading width of central boss 1b is t, the spreading width of a left side boss 1a and right boss 1c is s; the sheet metal thickness of thin-walled parts is δ; the axial height of thin-walled parts cylindrical portions may is H; 6 flange rectangular channel 2a that are uniformly distributed along the circumference are arranged on the outward flange limit 2 of thin-walled parts; 6 flange rectangular channel 2a are corresponding one by one with the position of the central boss 1b of 6 groups of rectangular boss respectively; the center line of flange rectangular channel 2a and the centerline collineation of central boss 1b, the axis quadrature of this center line and cylinder 1; It is characterized in that milling fixture is made up of pedestal 3, gland 4, hold-down bolt 5 and alignment pin 6;
(1) appearance profile of gland 4 is cylindrical, a cylinder shape groove coaxial with gland 4 is arranged on the lower surface of gland 4, the degree of depth of this cylinder shape groove is H+ ε, ε=0～0.5mm, the internal diameter of this cylinder shape groove cooperates with the crest clearance of cylinder 1, at the center of gland 4 upper surfaces a bolt hole 4a is arranged, circumferential edges at gland 4 upper surfaces has 6 groups of central boss cutter relieving grooves that are uniformly distributed along the circumference, every group switching centre boss cutter relieving is made up of two measure-alike little fan groove 4b, on the position of two little fan groove 4b and the thin-walled parts between left boss 1a and the central boss 1b and the groove between central boss 1b and the right boss 1c corresponding, the expansion spacing of little fan groove 4b is greater than L, the axial depth E of little fan groove 4b＞f+ ε+h, f is the distances of gland 4 upper surfaces to lower surface cylinder shape groove bottom land, and little fan groove 4b bottom land is to the distance of the gland 4 axis radius less than cylinder 1; Circumferential edges at gland 4 upper surfaces also has 6 left and right sides boss cutter relieving groove 4c that be uniformly distributed along the circumference, fan-shaped, left and right sides boss cutter relieving groove 4c and 6 group switching centre boss cutter relieving grooves are staggered, the position of left and right sides boss cutter relieving groove 4c is corresponding with groove between right boss 1c and the left boss 1a, the expansion spacing of left and right sides boss cutter relieving groove 4c is greater than the expansion spacing of groove between right boss 1c and the left boss 1a, the axial depth of left and right sides boss cutter relieving groove 4c is E, and the radial depth of left and right sides boss cutter relieving groove 4c is identical with the radial depth of little fan groove 4b; 6 flange rectangular channel cutter relieving groove 4d that be uniformly distributed along the circumference, that connect are vertically arranged on the external cylindrical surface of gland 4, flange rectangular channel cutter relieving groove 4d is arranged in the middle of two little fan groove 4b of central boss cutter relieving groove, the spreading width of flange rectangular channel cutter relieving groove 4d is greater than the spreading width of flange rectangular channel 2a, and the bottom land of flange rectangular channel cutter relieving groove 4d is to the distance of the gland 4 axis radius less than gland 4 lower surface cylinder shape grooves; On gland 4 upper surfaces, there is a gland dowel hole 4e on the next door of bolt hole 4a;
(2) pedestal 3 is multidiameters, and it is connected to form by top axle section 3a, the positioning section 3b of centre and the following section of being installed 3c; The external diameter of axle section 3a and the internal diameter matched in clearance of thin-walled parts cylinder 1, the axial length of axle section 3a equals H+ δ, there is a tapped blind hole 3d at center at axle section 3a upper surface, on tapped blind hole 3d next door, there is a pedestal alignment pin blind hole 3e position corresponding with bolt hole 4a on the gland 4, the internal diameter of pedestal alignment pin blind hole 3e equals the internal diameter of gland dowel hole 4e; The external diameter of positioning section 3b equates that with the external diameter of gland 4 external diameter of the section of being installed 3c is less than the external diameter of positioning section 3b; The axle section 3a of pedestal 3 is positioned at the cylinder shape groove of gland 4 lower surfaces, alignment pin 6 is inserted in gland dowel hole 4e and the pedestal alignment pin blind hole 3e and keeps matched in clearance, hold-down bolt 5 is screwed in the tapped blind hole 3d of pedestal 3 after passing the bolt hole 4a of gland 4, on axle section 3a upper surface, there are pedestal central boss cutter relieving groove and pedestal left and right sides boss cutter relieving groove 3g in the position corresponding with central boss cutter relieving groove on the gland 4 and left and right sides boss cutter relieving groove 4c, pedestal central boss cutter relieving groove is made up of two little fan groove 3f of measure-alike pedestal, the planar dimension of the little fan groove 3f of pedestal is identical with little fan groove 4b on the gland 4, the planar dimension of pedestal left and right sides boss cutter relieving groove 3g is identical with left and right sides boss cutter relieving groove 4c on the gland 4, axial depth h1＞h of little fan groove 3f of pedestal and pedestal left and right sides boss cutter relieving groove 3g; On the face of cylinder of positioning section 3b, there is the pedestal flange rectangular channel cutter relieving groove 3h of axial perforation positioning section 3b the position corresponding with flange rectangular channel cutter relieving groove 4d on the gland 4, the planar dimension of pedestal flange rectangular channel cutter relieving groove 3h is identical with flange rectangular channel cutter relieving groove 4d.
Using method of the present utility model is: on the dish of dividing head or garden the section of the being installed 3c below the pedestal 3 is fixed on dividing head or the garden is coiled.Axle section 3a upper surface center above the center of centering disk or dividing head and the pedestal 3 has the bolt hole 4a correspondence position of a tapped blind hole 3d on tapped blind hole 3d next door and gland 4 to have a pedestal alignment pin blind hole 3e corresponding, there is the cylinder [1] on the blue limit of method [2] to pack on the axle 3a downwards this thin-walled parts upper port, gland 4 is buckled in cylinder [1], the alignment pin 6 of packing into, match with alignment pin blind hole 3e on the pedestal 3, fastening bolt 5 so just can be processed thin-walled parts.
Embodiment 1
Referring to Fig. 1 to Fig. 7, a kind of motor thin-walled parts milling fixture, be used to process the motor thin-walled parts of following structure, this thin-walled parts is the cylinder (external diameter 148.2 of flange that a upper port has the outward flange limit, outside diameter of cylinder 143.96), on the lower port of cylinder, there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss, left side boss and right boss are formed, left side boss left side seamed edge and right boss right side seamed edge distance are 44mm, the height of all rectangular boss is h=4 ± 0.15mm, the left side boss and the expansion spacing of middle cardiac prominence and the expansion spacing of central boss and right boss are L=11.5mm, the spreading width of central boss is t=10 ± 0.15mm, the spreading width of a left side boss and right boss is s=6 ± 0.15mm; the sheet metal thickness of thin-walled parts is δ=1 ± 0.12mm; the axial height of thin-walled parts cylindrical portions may is H=18 ± 0.12mm; 6 flange rectangular channel 2a=12 ± 0.21mm that are uniformly distributed along the circumference are arranged on the outward flange limit of thin-walled parts; 6 flange rectangular channels are corresponding one by one with the position of the central boss of 6 groups of rectangular boss respectively; the center line of flange rectangular channel and the centerline collineation of central boss, the axis quadrature of this center line and cylinder.
(1) appearance profile of gland is cylindrical, a cylinder shape groove coaxial with gland is arranged on the lower surface of gland, the degree of depth of this cylinder shape groove is H+ ε=19.2mm, ε=0.1mm, the internal diameter of this cylinder shape groove cooperates with the crest clearance of cylinder, a bolt hole 4a=10.5mm is arranged at the center of gland upper surface, circumferential edges at the gland upper surface has 6 groups of central boss cutter relieving grooves that are uniformly distributed along the circumference, every group switching centre boss cutter relieving is made up of two measure-alike little fan grooves, on the position of two little fan grooves and the thin-walled parts between left boss and the central boss and the groove between central boss and the right boss corresponding, the expansion spacing of little fan groove is greater than L=11.5mm, the axial depth E of little fan groove＞f+ ε+h=10.2mm, f=6 ± 0.12mm is the distance of gland upper surface to lower surface cylinder shape groove bottom land, and little fan groove bottom land is to the distance of the gland axis radius (R71-tool radius) less than cylinder; Circumferential edges at the gland upper surface also has 6 left and right sides that be uniformly distributed along the circumference, fan-shaped boss cutter relieving grooves, left and right sides boss cutter relieving groove and 6 group switching centre boss cutter relieving grooves are staggered, the position of left and right sides boss cutter relieving groove is corresponding with groove between right boss and the left boss, the expansion spacing of left and right sides boss cutter relieving groove is greater than the expansion spacing of groove between right boss and the left boss, the axial depth of left and right sides boss cutter relieving groove is E=10.2mm, and the radial depth of left and right sides boss cutter relieving groove is identical with the radial depth of little fan groove; 6 flange rectangular channel cutter relieving grooves that be uniformly distributed along the circumference, that connect are vertically arranged on the external cylindrical surface of gland, flange rectangular channel cutter relieving groove is arranged in the middle of two little fan grooves of central boss cutter relieving groove, the spreading width of flange rectangular channel cutter relieving groove is greater than the spreading width of flange rectangular channel, and the bottom land of flange rectangular channel cutter relieving groove is to the distance of the gland axis radius less than gland lower surface cylinder shape groove; On the gland upper surface, there is a gland dowel hole 4e=8+0.05mm on the next door of bolt hole.
(2) pedestal is a multidiameter, and it is connected to form by top axle section, the positioning section of centre and the following section of being installed; The internal diameter matched in clearance of the external diameter of axle section and thin-walled parts cylinder (axle end external diameter is 141.96mm; the internal diameter of thin-walled parts cylinder is 142.06mm); the axial length of axle section equals H+ δ=19.1mm; at the center of axle section upper surface a tapped blind hole 3d=M10 is arranged; on tapped blind hole next door, there is a pedestal alignment pin blind hole position corresponding with bolt hole on the gland, the internal diameter of pedestal alignment pin blind hole equals the internal diameter of gland dowel hole; The external diameter of positioning section equates that with the external diameter of gland the external diameter of the section of being installed is less than the external diameter of positioning section; The axle section of pedestal is positioned at the cylinder shape groove of gland lower surface, alignment pin (is 8 ± 0.12mm) to be inserted in gland dowel hole and the pedestal alignment pin blind hole and to keep matched in clearance, hold-down bolt is screwed in the tapped blind hole of pedestal after passing the bolt hole of gland, on axle section upper surface, there are pedestal central boss cutter relieving groove and pedestal left and right sides boss cutter relieving groove in the position corresponding with central boss cutter relieving groove on the gland and left and right sides boss cutter relieving groove, pedestal central boss cutter relieving groove is made up of two little fan grooves of measure-alike pedestal, the planar dimension of the little fan groove of pedestal is identical with little fan groove on the gland, the planar dimension of pedestal left and right sides boss cutter relieving groove is identical with left and right sides boss cutter relieving groove on the gland, the axial depth h1＞h=4.2mm of little fan groove of pedestal and pedestal left and right sides boss cutter relieving groove; On the face of cylinder of positioning section, there is the pedestal flange rectangular channel cutter relieving groove of axial perforation positioning section the position corresponding with flange rectangular channel cutter relieving groove on the gland, the planar dimension of pedestal flange rectangular channel cutter relieving groove is identical with flange rectangular channel cutter relieving groove.
Referring to Fig. 1 to Fig. 7, a kind of motor thin-walled parts milling fixture, be used to process the motor thin-walled parts of following structure, this thin-walled parts is the cylinder (external diameter 148.2 of flange that a upper port has the outward flange limit, outside diameter of cylinder 143.98), on the lower port of cylinder, there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss, left side boss and right boss are formed, left side boss left side seamed edge and right boss right side seamed edge distance are 44mm, the height of all rectangular boss is h=4 ± 0.15mm, the left side boss and the expansion spacing of central boss and the expansion spacing of central boss and right boss are L=11.5mm, the spreading width of central boss is t=10 ± 0.15mm, the spreading width of a left side boss and right boss is s=6 ± 0.15mm; the sheet metal thickness of thin-walled parts is δ=1 ± 0.12mm; the axial height of thin-walled parts cylindrical portions may is H=18 ± 0.12mm; 6 flange rectangular channel 2a=12 ± 0.21mm that are uniformly distributed along the circumference are arranged on the outward flange limit of thin-walled parts; 6 flange rectangular channels are corresponding one by one with the position of the central boss of 6 groups of rectangular boss respectively; the center line of flange rectangular channel and the centerline collineation of central boss, the axis quadrature of this center line and cylinder.
(1) appearance profile of gland is cylindrical, a cylinder shape groove coaxial with gland is arranged on the lower surface of gland, the degree of depth of this cylinder shape groove is H+ ε=19.2mm, ε=0.3mm, the internal diameter of this cylinder shape groove cooperates with the crest clearance of cylinder, a bolt hole 4a=10.5mm is arranged at the center of gland upper surface, circumferential edges at the gland upper surface has 6 groups of central boss cutter relieving grooves that are uniformly distributed along the circumference, every group switching centre boss cutter relieving is made up of two measure-alike little fan grooves, on the position of two little fan grooves and the thin-walled parts between left boss and the central boss and the groove between central boss and the right boss corresponding, the expansion spacing of little fan groove is greater than L=11.5mm, the axial depth E of little fan groove＞f+ ε+h=10.4mm, f=6 ± 0.12mm is the distance of gland upper surface to lower surface cylinder shape groove bottom land, and little fan groove bottom land is to the distance of the gland axis radius (R71-tool radius) less than cylinder; Circumferential edges at the gland upper surface also has 6 left and right sides that be uniformly distributed along the circumference, fan-shaped boss cutter relieving grooves, left and right sides boss cutter relieving groove and 6 group switching centre boss cutter relieving grooves are staggered, the position of left and right sides boss cutter relieving groove is corresponding with groove between right boss and the left boss, the expansion spacing of left and right sides boss cutter relieving groove is greater than the expansion spacing of groove between right boss and the left boss, the axial depth of left and right sides boss cutter relieving groove is E=10.4mm, and the radial depth of left and right sides boss cutter relieving groove is identical with the radial depth of little fan groove; 6 flange rectangular channel cutter relieving grooves that be uniformly distributed along the circumference, that connect are vertically arranged on the external cylindrical surface of gland, flange rectangular channel cutter relieving groove is arranged in the middle of two little fan grooves of central boss cutter relieving groove, the spreading width of flange rectangular channel cutter relieving groove is greater than the spreading width of flange rectangular channel, and the bottom land of flange rectangular channel cutter relieving groove is to the distance of the gland axis radius less than gland lower surface cylinder shape groove; On the gland upper surface, there is a gland dowel hole 4e=8+0.05mm on the next door of bolt hole.
(2) pedestal is a multidiameter, and it is connected to form by top axle section, the positioning section of centre and the following section of being installed; The internal diameter matched in clearance of the external diameter of axle section and thin-walled parts cylinder (axle end external diameter is 141.94mm; the internal diameter of thin-walled parts cylinder is 142.02mm); the axial length of axle section equals H+ δ=19.1mm; at the center of axle section upper surface a tapped blind hole 3d=M10 is arranged; on tapped blind hole next door, there is a pedestal alignment pin blind hole position corresponding with bolt hole on the gland, the internal diameter of pedestal alignment pin blind hole equals the internal diameter of gland dowel hole; The external diameter of positioning section equates that with the external diameter of gland the external diameter of the section of being installed is less than the external diameter of positioning section; The axle section of pedestal is positioned at the cylinder shape groove of gland lower surface, alignment pin (is 8 ± 0.12mm) to be inserted in gland dowel hole and the pedestal alignment pin blind hole and to keep matched in clearance, hold-down bolt is screwed in the tapped blind hole of pedestal after passing the bolt hole of gland, on axle section upper surface, there are pedestal central boss cutter relieving groove and pedestal left and right sides boss cutter relieving groove in the position corresponding with central boss cutter relieving groove on the gland and left and right sides boss cutter relieving groove, pedestal central boss cutter relieving groove is made up of two little fan grooves of measure-alike pedestal, the planar dimension of the little fan groove of pedestal is identical with little fan groove on the gland, the planar dimension of pedestal left and right sides boss cutter relieving groove is identical with left and right sides boss cutter relieving groove on the gland, the axial depth h1＞h=4.2mm of little fan groove of pedestal and pedestal left and right sides boss cutter relieving groove; On the face of cylinder of positioning section, there is the pedestal flange rectangular channel cutter relieving groove of axial perforation positioning section the position corresponding with flange rectangular channel cutter relieving groove on the gland, the planar dimension of pedestal flange rectangular channel cutter relieving groove is identical with flange rectangular channel cutter relieving groove.
Claims (1)
1. motor thin-walled parts milling fixture, be used to process the motor thin-walled parts of following structure, this thin-walled parts is the cylinder [1] that a upper port has outward flange limit [2], on the lower port of cylinder [1], there are 6 groups of structures identical, the rectangular boss that is uniformly distributed along the circumference, every group of rectangular boss is by a central boss [1b], left side boss [1a] and right boss [1c] are formed, the height of all rectangular boss is h, the left side boss [1a] and the expansion spacing of central boss [1b] and the expansion spacing of central boss [1b] and right boss [1c] are L, the spreading width of central boss [1b] is t, the spreading width of a left side boss [1a] and right boss [1c] is s; the sheet metal thickness of thin-walled parts is δ; the axial height of thin-walled parts cylindrical portions may is H; 6 flange rectangular channels [2a] that are uniformly distributed along the circumference are arranged on the outward flange limit [2] of thin-walled parts; 6 flange rectangular channels [2a] are corresponding one by one with the position of the central boss [1b] of 6 groups of rectangular boss respectively; the centerline collineation of the center line of flange rectangular channel [2a] and central boss [1b], the axis quadrature of this center line and cylinder [1]; It is characterized in that milling fixture is made up of pedestal [3], gland [4], hold-down bolt [5] and alignment pin [6];
(1) appearance profile of gland [4] is cylindrical, on the lower surface of gland [4], have one with the coaxial cylinder shape groove of gland [4], the degree of depth of this cylinder shape groove is H+ ε, ε=0～0.5mm, the internal diameter of this cylinder shape groove cooperates with the crest clearance of cylinder [1], there is a bolt hole [4a] at center at gland [4] upper surface, circumferential edges at gland [4] upper surface has 6 groups of central boss cutter relieving grooves that are uniformly distributed along the circumference, every group switching centre boss cutter relieving is made up of two measure-alike little fan grooves [4b], on the position of two little fan grooves [4b] and the thin-walled parts between left boss [1a] and the central boss [1b] and the groove between central boss [1b] and the right boss [1c] corresponding, the expansion spacing of little fan groove [4b] is greater than L, the axial depth E of little fan groove [4b]＞f+ ε+h, f is the distance of gland [4] upper surface to lower surface cylinder shape groove bottom land, and little fan groove [4b] bottom land is to the distance of gland [4] the axis radius less than cylinder [1]; Circumferential edges at gland [4] upper surface also has 6 left and right sides boss cutter relieving grooves that be uniformly distributed along the circumference, fan-shaped [4c], left and right sides boss cutter relieving groove [4c] is staggered with 6 group switching centre boss cutter relieving grooves, the position of left and right sides boss cutter relieving groove [4c] is corresponding with groove between right boss [1c] and the left boss [1a], the expansion spacing of left and right sides boss cutter relieving groove [4c] is greater than the expansion spacing of groove between right boss [1c] and the left boss [1a], the axial depth of left and right sides boss cutter relieving groove [4c] is E, and the radial depth of left and right sides boss cutter relieving groove [4c] is identical with the radial depth of little fan groove [4b]; 6 flange rectangular channel cutter relieving grooves [4d] that be uniformly distributed along the circumference, that connect are vertically arranged on the external cylindrical surface of gland [4], flange rectangular channel cutter relieving groove [4d] is arranged in the middle of two little fan grooves [4b] of central boss cutter relieving groove, the spreading width of flange rectangular channel cutter relieving groove [4d] is greater than the spreading width of flange rectangular channel [2a], and the bottom land of flange rectangular channel cutter relieving groove [4d] is to the distance of gland [4] the axis radius less than gland [4] lower surface cylinder shape groove; On gland [4] upper surface, there is a gland dowel hole [4e] on the next door of bolt hole [4a];
(2) pedestal [3] is a multidiameter, and it is connected to form by top axle section [3a], the positioning section [3b] of centre and the following section of being installed [3c]; The internal diameter matched in clearance of the external diameter of axle section [3a] and thin-walled parts cylinder [1], the axial length of axle section [3a] equals H+ δ, there is a tapped blind hole [3d] at center at axle section [3a] upper surface, on tapped blind hole [3d] next door, there is a pedestal alignment pin blind hole [3e] position corresponding with bolt hole [4a] on the gland [4], the internal diameter of pedestal alignment pin blind hole [3e] equals the internal diameter of gland dowel hole [4e]; The external diameter of positioning section [3b] equates that with the external diameter of gland [4] external diameter of the section of being installed [3c] is less than the external diameter of positioning section [3b]; The axle section [3a] of pedestal [3] is positioned at the cylinder shape groove of gland [4] lower surface, alignment pin [6] is inserted in gland dowel hole [4e] and the pedestal alignment pin blind hole [3e] and keeps matched in clearance, hold-down bolt [5] is screwed in the tapped blind hole [3d] of pedestal [3] after passing the bolt hole [4a] of gland [4], on axle section [3a] upper surface, there are pedestal central boss cutter relieving groove and pedestal left and right sides boss cutter relieving groove [3g] in the position corresponding with central boss cutter relieving groove on the gland [4] and left and right sides boss cutter relieving groove [4c], pedestal central boss cutter relieving groove is made up of two little fan grooves of measure-alike pedestal [3f], the planar dimension of the little fan groove of pedestal [3f] is identical with little fan groove [4b] on the gland [4], the planar dimension of pedestal left and right sides boss cutter relieving groove [3g] is identical with left and right sides boss cutter relieving groove [4c] on the gland [4], the axial depth h1＞h of little fan groove of pedestal [3f] and pedestal left and right sides boss cutter relieving groove [3g]; On the face of cylinder of positioning section [3b], there is the pedestal flange rectangular channel cutter relieving groove [3h] of axial perforation positioning section [3b] position corresponding with flange rectangular channel cutter relieving groove [4d] on the gland [4], the planar dimension of pedestal flange rectangular channel cutter relieving groove [3h] is identical with flange rectangular channel cutter relieving groove [4d].
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206800154U CN201997965U (en) | 2010-12-27 | 2010-12-27 | Milling fixture for thin-wall parts of motors |
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| CN2010206800154U CN201997965U (en) | 2010-12-27 | 2010-12-27 | Milling fixture for thin-wall parts of motors |
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| CN102398179A (en) * | 2011-12-02 | 2012-04-04 | 蚌埠金威滤清器有限公司 | Machining and positioning device for inner bore |
| CN102990390A (en) * | 2012-11-26 | 2013-03-27 | 无锡市航鹄科技有限公司 | High-precision aluminum piece milling and locating fixture |
| CN103084872A (en) * | 2012-11-09 | 2013-05-08 | 无锡市航鹄科技有限公司 | Clamp for turning excircle of flange piece |
| CN103386502A (en) * | 2013-08-02 | 2013-11-13 | 太原科技大学 | Method for machining rotary thin-walled parts in milling machine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398179A (en) * | 2011-12-02 | 2012-04-04 | 蚌埠金威滤清器有限公司 | Machining and positioning device for inner bore |
| CN103084872A (en) * | 2012-11-09 | 2013-05-08 | 无锡市航鹄科技有限公司 | Clamp for turning excircle of flange piece |
| CN102990390A (en) * | 2012-11-26 | 2013-03-27 | 无锡市航鹄科技有限公司 | High-precision aluminum piece milling and locating fixture |
| CN103386502A (en) * | 2013-08-02 | 2013-11-13 | 太原科技大学 | Method for machining rotary thin-walled parts in milling machine |
| CN106965016A (en) * | 2017-03-24 | 2017-07-21 | 广东工业大学 | A kind of semi-automatic clamping device |
| CN107123616A (en) * | 2017-06-01 | 2017-09-01 | 广东瑞谷光网通信股份有限公司 | The device of position and angle positioning is realized in EML equipment |
| CN108907899A (en) * | 2018-07-27 | 2018-11-30 | 黄河科技学院 | Six station numerical control processing apparatus |
| CN108907899B (en) * | 2018-07-27 | 2020-07-31 | 黄岩精惠普模塑厂 | Six-station numerical control machining device |
| CN109483261A (en) * | 2018-10-30 | 2019-03-19 | 贵州黎阳国际制造有限公司 | A kind of positioning fixture and localization method of opening thin annular flange dish |
| CN113399721A (en) * | 2021-07-01 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Method for milling squirrel cage window |
| CN113399721B (en) * | 2021-07-01 | 2022-06-03 | 中国航发贵州黎阳航空动力有限公司 | Method for milling squirrel cage window |
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Granted publication date: 20111005 Termination date: 20111227 |