CN208866785U - A kind of magic chuck for the milling oil groove processing of disk gear - Google Patents

Abstract

The utility model discloses a kind of magic chucks for the milling oil groove processing of disk gear, comprising: positioning core axle has tapered core axle portion；Expansion set is set on the positioning core axle, wherein the inner peripheral surface of the expansion set is the inner conical surface cooperated with the tapered core axle portion, and the outer peripheral surface of the expansion set is used for the axis hole of swelling disk gear；Gland, it is threadedly coupled with the positioning core axle, for expansion set described in the axial compression from the top of the expansion set along the positioning core axle, the axis hole of disk gear described in the outer peripheral surface swelling of the expansion set is set to pass through positioning core axle male cone (strobilus masculinus) and the high-precision cooperation of expansion set inner conical surface, the quick positioning and clamping of close disk gear product can be achieved, pass through the cooperation of connecting hole on positioning core axle and bolt, it can be excessively to expansion set, positioning core axle replacement, adjustment, in the case where not moving clamp body, it is able to achieve close, the Set and Positioning of similar interior porose disc gear product is processed, labor intensity is reduced simultaneously, achieve the effect that fast quick change produces.

Description

A kind of magic chuck for the milling oil groove processing of disk gear

Technical field

The utility model relates to a kind of magic chucks for the milling oil groove processing of disk gear, can be applied to automotive transmission disk Gear mills oil groove processing.

Background technique

With the development of society, automobile becomes increasingly common, and in automobile gearbox gear production process, oil groove adds Work is generally existing.

During processing oil groove, gear Xiyanping injection is positioned using clearance fit mandrel, conference positioning is crossed in clamping gap Wild effect；Clamping gap is too small to will lead to clamping inconvenience.And in batch processing, the porose disc gear in difference needs Multiple changing clamp, reduces production efficiency at the time before extending disk Gear Processing.

Therefore, it is badly in need of designing a set of disk gear milling oil groove fixture for being easy to clamping, positioning stablity, and the versatility of fixture By force, the fast quick change that different pore size disk gear may be implemented produces.

Utility model content

The purpose of this utility model is that a kind of magic chuck for the milling oil groove processing of disk gear is proposed, to realize disk tooth The quick-replaceable of wheel.

The utility model proposes it is a kind of for disk gear milling oil groove processing magic chuck, comprising: positioning core axle has Tapered core axle portion；Expansion set is set on the positioning core axle, wherein the inner peripheral surface of the expansion set be and the taper mandrel The inner conical surface of portion's cooperation, the outer peripheral surface of the expansion set are used for the axis hole of swelling disk gear；Gland, with the positioning core axle screw thread Connection, for expansion set described in the axial compression from the top of the expansion set along the positioning core axle, makes the outer ring table of the expansion set The axis hole of disk gear described in the swelling of face.

It further, further include clamp body and several locating pieces, wherein the locating piece is connected by fastener and clamp body It connects.

Further, the positioning core axle has pedestal, wherein the pedestal and the clamp body pass through several fasteners It is detachably connected.

Further, the pedestal is equipped with the boss for being positioned to disk gear lower end surface.

Further, the value range of the angle of the inner conical surface of the expansion set and the male cone (strobilus masculinus) of the tapered core axle portion is 5- 15°。

Further, the expansion set is unilateral open flume type expansion set.

Further, the outer diameter of the expansion set has the elastic deformation amount of 0.2mm, to realize that disk bore diameter exists 0.2mm range is general.

Further, the thickness of the expansion set axial length≤disk gear-oil groove working depth-gland thickness.

Compared with prior art, the utility model has the beneficial effects that

1, by the high-precision cooperation of positioning core axle male cone (strobilus masculinus) and expansion set inner conical surface, it can be achieved that the quick of close disk gear product is determined Position clamping.

2, by using unilateral open flume type expansion set, and split groove depth, the optimization design of root fillet, reach 0.2mm's Elastic deformation amount realizes that diameter of bore is general in 0.2mm range.

3, by the cooperation of connecting hole on positioning core axle and bolt, expansion set, positioning core axle can be replaced excessively, adjustment, In the case where not moving clamp body, it is able to achieve the Set and Positioning processing of close, similar interior porose disc gear product, while reducing labour Intensity has achieved the effect that fast quick change produces.

Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention. Below with reference to figure, the present invention is described in further detail.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:

Fig. 1 be the utility model proposes for disk gear mill oil groove processing magic chuck structural schematic diagram；

Fig. 2 a be the utility model proposes for disk gear mill oil groove processing magic chuck in expansion set structural representation Figure；

Fig. 2 b be the utility model proposes for disk gear mill oil groove processing magic chuck in expansion set it is axially expanded Schematic diagram；

Fig. 3 be the utility model proposes mill the structure of positioning core axle in the magic chuck of oil groove processing for disk gear and show It is intended to；

Fig. 4 a be the utility model proposes in disk gear mill oil groove processing magic chuck in gland main view；And

Fig. 4 b be the utility model proposes in disk gear mill oil groove processing magic chuck in gland left view.

Description of symbols

1, locating piece；2, clamp body；

3, positioning core axle；4, expansion set；

5, gland；6, disk gear；

3a, tapered core axle portion；3b, pedestal；

3c, boss 4a, open slot

4b, root fillet.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to Fig.1-4, in one embodiment, the magic chuck for the milling oil groove processing of disk gear of the utility model, packet It includes: positioning core axle 3, expansion set 4 and gland 5.

Positioning core axle 3 has tapered core axle portion 3a；Expansion set 4 is set on the positioning core axle 3, the inner ring of the expansion set 4 Surface is the inner conical surface cooperated with the tapered core axle portion 3a, and the outer peripheral surface of the expansion set 4 is used for the axis of swelling disk gear 6 Hole.

Wherein, the inner conical surface of the expansion set 4 and tapered core axle portion 3a high-precision cooperate, and the contact area of the two can be with Up to 85% or more, reach 6 positioning accuracy request of disk gear after guaranteeing 4 distending of expansion set.

Threaded hole, and the outer spiral shell being arranged on the threaded hole and gland 5 are offered on the tapered core axle portion 3a of positioning core axle 3 Line matches, and gland 5 is threadedly coupled with the positioning core axle 3, after disk gear 6 is mounted on positioning core axle 3, utilizes gland 5 The effect of tightening makes the expansion set 4 for expansion set 4 described in the axial compression from the top of the expansion set 4 along the positioning core axle 3 Outer peripheral surface swelling described in disk gear 6 axis hole, realize 4 outer circle of expansion set and respective disc gear 6 positioning clamp.

In one embodiment, such as Fig. 1, above-mentioned magic chuck further includes clamp body 2 and several locating pieces 1,2 conduct of clamp body The main structure of fixture is for installing positioning core axle 3, wherein and the locating piece 1 is connect by fastener with clamp body 2, depending on Position block 1 is mounted on machining tool in card slot, so that clamp body 2 be made to be positioned on lathe.

In one embodiment, as shown in figures 1 and 3, the positioning core axle 3 has pedestal 3b, wherein has on pedestal 3b Several connecting holes, the pedestal 3b is detachably connected by several fasteners with the clamp body 2, realizes 3 He of positioning core axle The positioning and clamping of clamp body 2.

In one embodiment, as shown in figures 1 and 3, the pedestal 3b is equipped with for determining 6 lower end surface of disk gear The boss 3c of position, the end face boss 3c is smooth, for 6 end face of disk gear to be fixed, meanwhile, boss 3c is along 3 axis of positioning core axle Upward length is greater than the height of the bolt head for stationary positioned mandrel 3, avoids 6 end face of disk gear and threaded bolt contacts, into And cause disk gear 6 that out-of-flatness is installed.

In one embodiment, the value of the angle of the male cone (strobilus masculinus) of the inner conical surface of the expansion set 4 and the tapered core axle portion 3a Range is 5-15 ° in actual processing, and the angle of the male cone (strobilus masculinus) of the inner conical surface of the expansion set 4 and the tapered core axle portion 3a is 9 °, this angle can prevent expansion set 4 self-locking, while be convenient for the clamping of disk gear 6.

In one embodiment, as shown in Figure 2 a and 2 b, the expansion set 4 is unilateral open flume type expansion set 4, wherein expansion set 4 makes It is made of spring steel, and cross-notching 4a depth, the optimization design of root fillet 4b, the flexible of the end face of inner conical surface may be implemented.

In one embodiment, when the spring of selection processing expansion set 4 is rigid, elasticity modulus is selected to meet the outer diameter tool of expansion set 4 There is the elastic deformation amount of 0.2mm, to realize that 6 diameter of bore of disk gear is general in 0.2mm range.

In one embodiment, as shown in Figure 1, the selection of 4 axial length of expansion set depends on 6 thickness of disk gear and oil groove is deep Degree, 4 axial lengths of expansion set≤disk gear 6 thickness-oil groove working depth -5 thickness of gland.By the selection of expansion set 4, work as workpiece For clamping when on fixture, the top surface of gland 5 is lower than workpiece surface, when avoiding workpieces processing, top cover and tool contact, and Jin Erzao At hitting knife.

The clamping workpiece process of the magic chuck of the utility model is as follows:

Firstly, locating piece 1 is installed on the card slot of lathe, clamp body 2 is bolted, realizes clamp body 2 and lathe Connection.Then, the positioning core axle 3 and expansion set 4 to match with disk gear 6 is selected, the company on the pedestal 3b of positioning core axle 3 is passed through Hole is connect, is fixedly connected with positioning core axle 3 with clamp body 2 using bolt.

Again by disk gear 6 in 4 outer circle of expansion set, the boss of disk gear 6 lower end surface and positioning core axle 3 is twisted using gland 5 Tight effect, manual compression gland 5 compress downwards 4 end face of expansion set, push the tapered cooperation of expansion set 4 and positioning core axle 3, distending is swollen 4 outer circles are covered, realize that 4 outer circle of expansion set and the positioning of respective disc gear 6 clamp.

After the completion of clamping workpiece, the cutter on lathe starts to carry out machining to workpiece；Cutting terminates, and unclamps pressure manually Lid 5 takes out workpiece, process finishing.

When a batch or close interior porose disc gear 6 after processing is completed, when needing to process other similar different size disk gears 6, The bolt for unclamping connection positioning core axle 3 and clamp body 2, in replacement with process positioning core axle 3 that 6 size of disk gear matches and swollen Set 4, realizes the processing of similar disk gear 6.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of magic chuck for the milling oil groove processing of disk gear characterized by comprising

Positioning core axle has tapered core axle portion；

Expansion set is set on the positioning core axle, wherein the inner peripheral surface of the expansion set is to cooperate with the tapered core axle portion Inner conical surface, the outer peripheral surface of the expansion set are used for the axis hole of swelling disk gear；And

Gland is threadedly coupled with the positioning core axle, for the axial compression from the top of the expansion set along the positioning core axle The expansion set makes the axis hole of disk gear described in the outer peripheral surface swelling of the expansion set.

2. the magic chuck according to claim 1 for the milling oil groove processing of disk gear, which is characterized in that further include fixture Body and several locating pieces, wherein the locating piece is connect by fastener with clamp body.

3. the magic chuck according to claim 2 for the milling oil groove processing of disk gear, which is characterized in that the locating core Axis has pedestal, wherein the pedestal is detachably connected by several fasteners with the clamp body.

4. the magic chuck according to claim 3 for the milling oil groove processing of disk gear, which is characterized in that on the pedestal Equipped with the boss for being positioned to disk gear lower end surface.

5. the magic chuck according to claim 1 for the milling oil groove processing of disk gear, which is characterized in that the expansion set The value range of the angle of inner conical surface and the male cone (strobilus masculinus) of the tapered core axle portion is 5-15 °.

6. the magic chuck according to claim 1 for the milling oil groove processing of disk gear, which is characterized in that the expansion set is Unilateral open flume type expansion set.

7. the magic chuck according to claim 1 for the milling oil groove processing of disk gear, which is characterized in that the expansion set Outer diameter has the elastic deformation amount of 0.2mm, to realize that disk bore diameter is general in 0.2mm range.

8. the magic chuck according to claim 1 for the milling oil groove processing of disk gear, which is characterized in that the expansion set axis To length≤disk gear thickness-oil groove working depth-gland thickness.