CN209453206U - A kind of opposed double column Boring machine processing rotor groove broach shells - Google Patents

Abstract

A kind of opposed double column Boring machine processing rotor groove broach shells, the utility model relates to machining apparatus fields, and in particular to a kind of opposed double column Boring machine processing rotor groove broach shell technologies；The utility model aims to solve the problem that in process that wheel groove milling cutter is often forged a knife and damages and cause race knife, and machine tool spindle rigidity is insufficient, vibration is larger causes machined surface finish bad, the problem of tool changing operation complexity；The utility model it include broach shell body, threaded rod mandrel, fixedly connected part I；Threaded rod mandrel runs through entire broach shell body, it is connected on variable diameter transition sleeve, cooperated by broach shell body and variable diameter transition sleeve and positive hexagonal column and regular hexagon slot matching structure design, overcome it is rigid it is insufficient, vibration is larger causes machined surface finish bad, the problem of tool changing operation complexity；The utility model is suitable for opposed double column Boring machine processing rotor groove knives.

Description

A kind of opposed double column Boring machine processing rotor groove broach shells

Technical field

The utility model relates to machining apparatus fields, and in particular to a kind of opposed double column Boring machine processing rotor grooves use Broach shell technology.

Background technique

The processing rotor final stage race on boring machine in the past, discovery wheel groove milling cutter is often forged a knife damage in process, and every Milling cutter is only processed 3-4 final stage race and is just scrapped, and easily makes race knife due to forging a knife, this is serious quality problems, milling Knife is import cutter, and quantity is few, price is high (nearly 30,000 yuan of unit price), and such as damage will excessively cause biggish economic loss, while shadow Ring the processing quality and progress of rotor.Wheel groove milling cutter often impaired reason is analyzed, there is at following 3 points:

1. the grooved size of rotor final stage race is big, the length of race is long, and boring spindle rigidity is insufficient, that is, there is " pony Draw a hand-cart phenomenon " so that wheel groove milling cutter is often forged a knife damage in process, and race knife can be made；2. in process Machine tool chief axis axial float, so that cutting force is mutated when processing rotor final stage race, vibration is larger, leads to machined surface finish not It is good；3. previous broach shell is connect with milling cutter by screw rod, tool changing must remove broach shell, complicated for operation.

Utility model content

The utility model aims to solve the problem that in process that wheel groove milling cutter is forged a knife and damages and cause race knife, in process Machine tool chief axis axial float, vibration is larger causes machined surface finish bad, the problem of tool changing operation complexity, and then provide one The opposed double column Boring machine processing rotor groove broach shells of kind.

The technical solution of the utility model is: it includes broach shell body 1, threaded rod mandrel 2, fixedly connected part I3；Broach shell body 1 Including cylindrical body one 1-1 and frustum of a cone 1-2；Broach shell body 1 is successively machined with one 1-1-1 of major diameter round hole, positive six side along center line Shape slot 1-1-2, two 1-1-3 of minor diameter circular hole perforation；One 1-1 of cylindrical body is uniformly machined with 4n through-hole 1-1- along circumference 4,4n fixedly connected part II1-1-5 are natural number by 4n through-hole 1-1-4 connection broach shell body 1 and variable diameter transition sleeve 4, n；Spiral shell Rasp bar mandrel 2 runs through entire broach shell body 1, its top is two 2-1 of cylindrical body, and middle part is positive hexagonal column 2-2, and lower part is Three 2-3 of cylindrical body, two upper end 2-1 of cylindrical body connect milling cutter, and three lower end 2-3 of cylindrical body passes through solid across the lower end of frustum of a cone 1-2 Determine connector I3 to be connected on variable diameter transition sleeve 4.

The utility model has the beneficial effects that broach shell body 1 and variable diameter transition sleeve 4 cooperate, grooved size becomes smaller, the length of race Reduce, is connected directly between on the spindle box of boring machine, enhances the rigidity of machine tool chief axis in process, overcome in process Wheel groove milling cutter is often forged a knife damage, and the problem of can make race knife；Machine tool chief axis is axially stablized in process, so that plus Cutting force is uniform when work rotor final stage race, and vibration is smaller, and machined surface finish improves 20%；Pass through positive hexagonal column 2- 2 with regular hexagon slot 1-1-2 matching structure design, limit 2 circumferencial direction of threaded rod mandrel freedom degree overcome it is previous Broach shell is connect with milling cutter screw rod, and tool changing must be removed with by broach shell, is unclamped screw rod with handle at the back side of broach shell and is carried out tool changing Problem can directly dismount milling cutter without tearing broach shell open, so that tool changing operation is simple.

Detailed description of the invention

Fig. 1 is schematic front view of the invention；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the left view of Fig. 1；

Fig. 4 is the axis side stereoscopic schematic diagram of Fig. 1；

Fig. 5 is the A-A schematic cross-sectional view of Fig. 1；

Fig. 6 is connect with schematic diagram.

Specific embodiment

Specific embodiment 1: illustrating present embodiment, the opposed double column borings of one kind described in present embodiment in conjunction with Fig. 1-6 Bed processing rotor race broach shell, it includes broach shell body 1, threaded rod mandrel 2, fixedly connected part I3；Broach shell body 1 includes cylindrical body One 1-1 and frustum of a cone 1-2；Broach shell body 1 is successively machined with one 1-1-1 of major diameter round hole, regular hexagon slot 1-1-2 along center line, Two 1-1-3 of minor diameter circular hole perforation；One 1-1 of cylindrical body is uniformly machined with 4n through-hole 1-1-4,4n fixed company along circumference Fitting II1-1-5 is natural number by 4n through-hole 1-1-4 connection broach shell body 1 and variable diameter transition sleeve 4, n；Threaded rod mandrel 2 passes through Entire broach shell body 1 is worn, its top is two 2-1 of cylindrical body, and middle part is positive hexagonal column 2-2, and lower part is three 2-3 of cylindrical body, Two upper end 2-1 of cylindrical body connects milling cutter, and three lower end 2-3 of cylindrical body is connected across the lower end of frustum of a cone 1-2 by fixedly connected part I3 It connects on variable diameter transition sleeve 4；

In the present embodiment, broach shell body 1 and variable diameter transition sleeve 4 cooperate, and are connected directly between on the spindle box of boring machine, enhance The rigidity of processing unit overcomes easily to forge a knife and damages and cause race knife, milling cutter vibration greatly to lead to machined surface finish not Good problem；Fixedly connected part II1-1-5 is by through-hole 1-1-4 connection broach shell body 1 and variable diameter transition sleeve 4, with the increasing of n value Add, broach shell body 1 connect more stable with variable diameter transition sleeve 4, and if there is small part screw loosening, both will not influence the steady of connection It is qualitative, have certain safety.

Specific embodiment 2: one described in embodiment is described with reference to Fig.5, present embodiment and specific embodiment one The difference for planting opposed double column Boring machine processing rotor groove broach shells is that two 2-1 of cylindrical body and three 2-3 of cylindrical body are machined with outside Screw thread；

In the present embodiment, two 2-1 of cylindrical body is machined with interior spiral shell of the external screw thread for threaded rod mandrel 2 and milling cutter lower end Line cooperation.

Specific embodiment 3: illustrating present embodiment, present embodiment and specific embodiment one or two in conjunction with Fig. 1-6 The difference of the opposed double column Boring machine processing rotor groove broach shells of one kind is that one 1-1-1 of major diameter round hole connects with milling cutter Match, regular hexagon slot 1-1-2 connects with positive hexagonal column 2-2 to be matched, and three 2-3 of cylindrical body connects with two 1-1-3 of minor diameter circular hole to be matched；

In the present embodiment, pass through positive hexagonal column 2-2 and regular hexagon slot 1-1-2 matching structure design, limitation The freedom degree of threaded rod mandrel circumferencial direction overcomes previous broach shell and connect with milling cutter screw rod, and tool changing must be torn open with by broach shell Under, the problem that screw rod carries out tool changing is unclamped with handle at the back side of broach shell, can directly dismount milling cutter without tearing broach shell open.

Specific embodiment 4: illustrate present embodiment in conjunction with Fig. 1, Fig. 4, present embodiment and specific embodiment one to The difference of the opposed double column Boring machine processing rotor groove broach shells of one kind described in one of three is that the upper end of through-hole 1-1-4 is heavy Hole.

Specific embodiment 5: embodiment is described with reference to Fig.6, present embodiment and specific embodiment one to four it The difference of the one opposed double column Boring machine processing rotor groove broach shells of one kind is that fixedly connected part II1-1-5 is countersunk head Screw；

Specific embodiment 6: embodiment is described with reference to Fig.5, present embodiment and specific embodiment one to five it The difference of the one opposed double column Boring machine processing rotor groove broach shells of one kind is, fixedly connected part I3 be jackscrew 3-1 and Nut 3-2.

Specific embodiment 7: embodiment is described with reference to Fig.5, present embodiment and specific embodiment one to six it The difference of the one opposed double column Boring machine processing rotor groove broach shells of one kind is that 2 lower end of threaded rod mandrel is machined with one A chamfered edge slot；

In the present embodiment, when processing the circumferential position of chamfered edge slot, it should which scribing line cooperation after mounting guarantees fixed connect Fitting I3 is vertical with chamfered edge groove location.

Specific embodiment 8: embodiment is described with reference to Fig. 1, present embodiment and specific embodiment one to eight it The one one 1-1-1 diameter of circular hole is 90mm, and two 1-1-3 diameter of circular hole is 38mm.

Specific embodiment 9: illustrating present embodiment, present embodiment and specific embodiment one to nine in conjunction with Fig. 1-6 One of described in the number of through-hole 1-1-4 be 4, the number of fixedly connected part II1-1-5 is 4；

In the present embodiment, 4 fixedly connected part II1-1-5 can be by broach shell body 1 and change by 4 through-hole 1-1-4 Diameter transition sleeve 4 is fixedly connected.

Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to In the protection scope of the utility model.

Claims (9)

1. a kind of opposed double column Boring machine processing rotor groove broach shells, it includes broach shell body (1), and threaded rod mandrel (2) is fixed Connector I (3)；It is characterized in that, the broach shell body (1) includes cylindrical body one (1-1) and the frustum of a cone (1-2)；

The broach shell body (1) is successively machined with circular hole one (1-1-1), regular hexagon slot (1-1-2), two (1- of circular hole along center line 1-3) penetrate through；

The cylindrical body one (1-1) is uniformly machined with 4n through-hole (1-1-4) along circumference, 4n fixedly connected part II (1- It is 1-5) natural number by 4n through-hole (1-1-4) connection broach shell body (1) and variable diameter transition sleeve (4), n；

The threaded rod mandrel (2) runs through entire broach shell body (1), its top is cylindrical body two (2-1), and middle part is regular hexagon Cylinder (2-2), lower part are cylindrical body three (2-3), and the upper end (2-1) of cylindrical body two connects milling cutter, and the lower end cylindrical body three (2-3) passes through The lower end of the frustum of a cone (1-2) is connected on variable diameter transition sleeve (4) by fixedly connected part I (3).

2. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that the circle Cylinder two (2-1) and cylindrical body three (2-3) are machined with external screw thread.

3. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 2, which is characterized in that the circle Hole one (1-1-1) connects with milling cutter matches, and regular hexagon slot (1-1-2) connects with positive hexagonal column (2-2) matches, cylindrical body three (2-3) It connects and matches with circular hole two (1-1-3).

4. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that described logical The upper end in hole (1-1-4) is counterbore.

5. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that described solid Determining connector II (1-1-5) is sunk screw.

6. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that described solid Determining connector I (3) is jackscrew (3-1) and nut (3-2).

7. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that the spiral shell Rasp bar mandrel (2) lower end is machined with a chamfered edge slot.

8. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that the circle (1-1-1) diameter of hole one is 90mm, and (1-1-3) diameter of circular hole two is 38mm.

9. a kind of opposed double column Boring machine processing rotor groove broach shells according to claim 1, which is characterized in that described logical The number in hole (1-1-4) is 4, and the number of fixedly connected part II (1-1-5) is 4.