CN202894770U - Car axle end three-hole machining and positioning tool - Google Patents
Car axle end three-hole machining and positioning tool Download PDFInfo
- Publication number
- CN202894770U CN202894770U CN 201220433604 CN201220433604U CN202894770U CN 202894770 U CN202894770 U CN 202894770U CN 201220433604 CN201220433604 CN 201220433604 CN 201220433604 U CN201220433604 U CN 201220433604U CN 202894770 U CN202894770 U CN 202894770U
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- China
- Prior art keywords
- hole
- axle sleeve
- moving block
- guide rod
- axle
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Abstract
The utility model discloses a car axle end three-hole machining and positioning tool which comprises an axle sleeve with an axle sleeve hole, a drill sleeve, a conehead bolt, guide rods, rotating blocks, a rotating block reset spring and a spring stop, wherein an end plate is arranged at one end of the axle shaft hole of the shaft sleeve, the end plate is provided with a middle hole, the drill sleeve is arranged in an axial through hole of the end plate, at least three radial guide holes which are distributed in a circumference direction mode are formed on the end plate of the axle sleeve, one guide rod is arranged in each radial guide hole in a sliding and matched mode, the rotary blocks are hinged on the shaft sleeve, a pressing head end of each rotating block abuts against the spherical surface of a corresponding guide rod, a clamping workpiece end of each rotating block can stretch into the axle sleeve hole, one end of the reset spring of the rotary block abuts against the rotating block, the other end of the reset spring of the rotary block abuts against the rotating block, the other end of the reset spring of the rotary block abuts against the spring stop, and an inner thread section is arranged in a middle hole of the axle sleeve. A first cone surface and an outer thread are arranged on the conehead bolt, a first cone surface of the conehead bolt is matched with a second cone surface of each guide rod, and the outer thread of the conehead bolt is connected with an inner thread section of the axle sleeve in a threaded mode. The axle end three-hole machining and positioning tool can improve machining accuracy and machining efficiency.
Description
Technical field
The utility model relates to a kind of machined positioning tool, relates in particular to the processing positioning tool of the axial workpiece stub bore structures such as a kind of railway axle.
Background technology
At present, when three screwed holes of radial drilling machine processing axle shaft end, because radial drilling machine itself is without accurate positioning function, and need manually-operated to position, yet low only according to the manually-operated positioning accuracy, error is larger, can not satisfy three hole location requirements of layout design, and we can only rely on the making frock to come auxiliary positioning.
The frock that adopts now is to position take the axle journal cylindrical as benchmark, and frock is clamped on the axle journal cylindrical, and then drill bit utilizes the guide effect of three drill bushings on the frock end face to process.Because during the axle shaft end Drilling operation, axle journal is in greenware condition, and rough surface, dimensional accuracy are low, only has the fit clearance guarantee frock that strengthens positioning tool endoporus and axle journal cylindrical to be sleeved on smoothly on the axletree, yet the gap is larger, and the positioning accuracy of frock is just lower.The fixedly dependence of frock position on axle journal be along three uniform bolts of frock cylindrical, tighten three bolts, frock can be clamped on the axle journal.Yet in tightening the process that three bolts clamp, inhomogeneous frock endoporus and the axle journal outer circles of will causing of the bolt amount of being screwed into reduces, and reduces positioning accuracy.
Existing tool locating precision is low, and difficulty reaches three hole location designing requirements, and three bolts need to intersect and evenly tighten, and workman's operant level is required high, and has reduced operating efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of axle shaft end three holes processing positioning tool that can improve positioning accuracy and working (machining) efficiency.
In order to achieve the above object, the technical solution of the utility model is: a kind of axle shaft end three holes processing positioning tool, comprise the axle sleeve with axle sleeve hole, drill bushing, conical head bolt, guide rod, moving block, moving block back-moving spring and spring catch, one end of the axle sleeve hole of described axle sleeve has end plate, has mesopore on the end plate, also have three axially extending bores that circumferentially distribute on the end plate of described axle sleeve, a drill bushing is installed in each axially extending bore, have at least three radially-directed holes that circumferentially distribute on the end plate of described axle sleeve, the radially-directed hole communicates with the mesopore of end plate, a guide rod is installed in each radially-directed hole with being slidingly matched, one end of described guide rod is with the taper seat II, the other end is with sphere, be hinged on the axle sleeve with the corresponding moving block of guide rod quantity, the pressure head end of each moving block offsets with the sphere of corresponding guide rod, the holding workpiece end of each moving block can stretch in the axle sleeve hole, described moving block back-moving spring one end and moving block offset, the other end and spring catch offset, spring catch is fixed on the axle sleeve, the mesopore of described axle sleeve contains internal thread segment, described conical head bolt has taper seat I and external screw thread, the taper seat I of conical head bolt matches with the taper seat II of guide rod, and the external screw thread of conical head bolt is threaded with the internal thread segment of the mesopore of axle sleeve.
The peripheral distribution of described axle sleeve has and the corresponding groove of radially-directed hole number, groove has pin-and-hole on the two side, be installed in the groove to described moving block loose fit, the moving block middle part has supported hole, and moving block penetrates supported hole by rotational pin and pin-and-hole is hinged on the axle sleeve.
The back of described moving block is provided with counterbore, and described moving block back-moving spring one end is installed in the counterbore, and the other end is compressed by spring catch, spring catch by screw fastening on axle sleeve.
The tail end of described conical head bolt has radial direction through hole, is inserted with handle in the radial direction through hole.
Described guide rod is multidiameter, and described radially-directed hole is shoulder hole, the shaft shoulder on the guide rod can with the radially-directed hole in step offset.
Radially-directed hole on the described axle sleeve is three and circumferentially uniform, and described guide rod, moving block homogeneous phase should be three.
Described drill bushing has the radial convex gear, and the outer face of the inboard of radial convex gear and the end plate of axle sleeve offsets.
After adopting the structure of technique scheme, during use, axle sleeve hole with axle sleeve is sleeved on the axle journal first, end plate and the axle end face of axle sleeve are close to, then rotating cone hook bolt, be screwed in the process at conical head bolt, its taper seat I is with after the taper seat II of guide rod contacts, generation is perpendicular to the active force of guide rod taper seat II, the radial component of this active force is parallel with guide rod, can promote guide rod and produce radial displacement, after guide rod produces displacement, the sphere of guide rod can promote the moving block untie-sell that rotates and swing, the holding workpiece end of moving block is contacted with the axle journal cylindrical, make moving block clampingc car shaft neck cylindrical by lever principle, at this moment, the utility model has been realized the location, and the drill bushing position on the axle sleeve is bore position.Adopt drill bit after axle end face gets out the pilot hole location, the counter-rotation conical head bolt makes conical head bolt withdraw from axle sleeve, and moving block resets under the effect of moving block back-moving spring power, the holding workpiece end of moving block separates with the axle journal cylindrical, and can take off the utility model this moment.The utility model can be realized a plurality of clamping point synchronous clampings, and a plurality of some clamping dynamics are even, and the clamping amount is identical, raising by a relatively large margin the positioning accuracy of frock.And the utility model is simple to operate, and is lower to the requirement of operating personnel's level of skill, greatly improved working (machining) efficiency.
Description of drawings
The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is the structural representation of axle shaft end of the present utility model three holes processing positioning tool when having filled the work piece axletree;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the three-dimensional cutaway view of the axle sleeve among Fig. 1.
The specific embodiment
Such as Fig. 1,2, shown in 3, a kind of axle shaft end of the present utility model three holes processing positioning tool, comprise the axle sleeve 1 with axle sleeve hole 1-1, drill bushing 2, conical head bolt 3, guide rod 5, moving block 8, moving block back-moving spring 6 and spring catch 7, the end of the axle sleeve hole 1-1 of described axle sleeve 1 has end plate 1-2, has mesopore 1-4 on the end plate 1-2, also have three axially extending bore 1-3 that circumferentially distribute on the end plate 1-2 of described axle sleeve 1, a drill bushing 2 is installed among each axially extending bore 1-3, have at least three radially-directed hole 1-5 that circumferentially distribute on the end plate 1-2 of described axle sleeve 1, radially-directed hole 1-5 communicates with the mesopore 1-4 of end plate 1-2, a guide rod 5 is installed among each radially-directed hole 1-5 with being slidingly matched, one end of described guide rod 5 is with taper seat II 5-1, the other end is with sphere 5-2, be hinged on the axle sleeve 1 with the corresponding moving block 8 of guide rod 5 quantity, the pressure head end 8-1 of each moving block 8 and the sphere 5-2 of corresponding guide rod 5 offset, the holding workpiece end 8-4 of each moving block 8 can stretch in the axle sleeve hole 1-1, described moving block back-moving spring 6 one ends and moving block 8 offset, the other end and spring catch 7 offset, spring catch 7 is fixed on the axle sleeve 1, the mesopore 1-4 of described axle sleeve 1 contains internal thread segment 1-4-1, described conical head bolt 3 has taper seat I 3-1 and external screw thread 3-3, the taper seat I 3-1 of conical head bolt 3 matches with the taper seat II 5-1 of guide rod 5, and the external screw thread 3-3 of conical head bolt 3 is threaded with the internal thread segment 1-4-1 of the mesopore 1-4 of axle sleeve 1.
As shown in Figure 1, 2, 3, for the ease of moving block 8 is installed, the peripheral distribution of described axle sleeve 1 has and the corresponding groove 1-7 of radially-directed hole 1-5 quantity, groove 1-7 has pin-and-hole 1-6 on the two side, be installed among the groove 1-7 to described moving block 8 loose fits, moving block 8 middle parts have supported hole 8-3, and moving block 8 penetrates supported hole 8-3 by rotational pin 9 and pin-and-hole 1-6 is hinged on the axle sleeve 1.
As shown in Figure 1, for the ease of moving block back-moving spring 6 is installed, the back of described moving block 8 is provided with counterbore 8-2, and described moving block back-moving spring 6 one ends are installed among the counterbore 8-2, and the other end is compressed by spring catch 7, and spring catch 7 is fastened on the axle sleeve 1 by screw 10.
As shown in Figure 1, 2, the tail end of described conical head bolt 3 has radial direction through hole 3-2, is inserted with handle 4 among the radial direction through hole 3-2.Also can not establish handle 4, squarely is done in the end of conical head bolt 3, can directly turn the end of conical head bolt 3 during use with spanner.
Shown in Fig. 1,3, in order to limit the stroke of guide rod 5, described guide rod 5 is multidiameters, and described radially-directed hole 1-5 is shoulder hole, the shaft shoulder on the guide rod 5 can with radially-directed hole 1-5 in step offset.
As shown in Figure 1, 2, 3, in order to make more reasonable structure, the radially-directed hole 1-5 on the described axle sleeve 1 is three and circumferentially uniform, and described guide rod 5, moving block 8 homogeneous phases should be three.
As shown in Figure 1, described drill bushing 2 has radial convex gear 2-3, and the outer face of the inboard of radial convex gear 2-3 and the end plate 1-2 of axle sleeve 1 offsets.
As shown in Figure 1, 2, when the utility model uses, the axle sleeve hole 1-1 of axle sleeve 1 is sleeved on the axletree 11, end plate 1-2 inner face 1-9 and the axle end face 11-1 of axle sleeve 1 offset, and the axle sleeve hole 1-1 of axle sleeve 1 and the cylindrical 11-2 of axletree 11 are matched in clearance; Then, handle 4 turns clockwise, conical head bolt 3 will be screwed into the end plate 1-2 of axle sleeve 1, the taper seat II 5-1 of 3 guide rods 5 is subject to the extruding of the taper seat I 3-1 of conical head bolt 3 simultaneously, promote the displacements that guide rod 5 produces radially perpendicular to the extruding force of taper seat II 5-1 at the component of the axis direction of guide rod 5, the sphere 5-2 of guide rod 5 promotes the pressure head end 8-1 of moving block 8, and moving block 8 untie-sell 9 that rotates is rotated to an angle, at this moment moving block back-moving spring 6 is compressed, and produces elastic force; After 3 moving blocks 8 rotated to an angle simultaneously, the holding workpiece end 8-4 of moving block 8 and the cylindrical 11-2 of axletree 11 offseted, and were rotated further handle 4 until the holding workpiece end 8-4 of moving block 8 clamps axletree 11; Can utilize the guide effect of the pilot hole 2-1 of drill bushing 2 to carry out Drilling operation this moment.After getting out pilot hole, rotate counterclockwise handle 4, then moving block 8, guide rod 5 will reset under the elastic force effect of moving block back-moving spring 6, the holding workpiece end 8-4 of moving block 8 and the cylindrical 11-2 of axletree 11 break away from, can take off the utility model, next utilize pilot hole, finish Drilling operation.
Claims (7)
1. axle shaft end three holes process positioning tool, it is characterized in that:
A, comprise axle sleeve (1), drill bushing (2), conical head bolt (3), guide rod (5), moving block (8), moving block back-moving spring (6) and spring catch (7) with axle sleeve hole (1-1),
One end of the axle sleeve hole (1-1) of b, described axle sleeve (1) has end plate (1-2), has mesopore (1-4) on the end plate (1-2),
On the end plate (1-2) of c, described axle sleeve (1), also have three axially extending bores (1-3) that circumferentially distribute, a drill bushing (2) is installed in each axially extending bore (1-3), on the end plate (1-2) of described axle sleeve (1), have at least three radially-directed holes (1-5) that circumferentially distribute, radially-directed hole (1-5) communicates with the mesopore (1-4) of end plate (1-2), a guide rod (5) is installed in each radially-directed hole (1-5) with being slidably matched, one end of described guide rod (5) is with taper seat II (5-1), the other end is with sphere (5-2)
D, be hinged on the axle sleeve (1) with the corresponding moving block of guide rod (5) quantity (8), the pressure head end (8-1) of each moving block (8) offsets with the sphere (5-2) of corresponding guide rod (5), the holding workpiece end (8-4) of each moving block (8) can stretch in the axle sleeve hole (1-1)
E, described moving block back-moving spring (6) one ends and moving block (8) offset, and the other end and spring catch (7) offset, and spring catch (7) is fixed on the axle sleeve (1),
The mesopore (1-4) of f, described axle sleeve (1) contains internal thread segment (1-4-1), described conical head bolt (3) has taper seat I (3-1) and external screw thread (3-3), the taper seat I (3-1) of conical head bolt (3) matches with the taper seat II (5-1) of guide rod (5), and the external screw thread (3-3) of conical head bolt (3) is threaded with the internal thread segment (1-4-1) of the mesopore (1-4) of axle sleeve (1).
2. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: the peripheral distribution of described axle sleeve (1) has and the corresponding groove of radially-directed hole (1-5) quantity (1-7), groove (1-7) has pin-and-hole (1-6) on the two side, be installed in the groove (1-7) to described moving block (8) loose fit, moving block (8) middle part has supported hole (8-3), and moving block (8) penetrates supported hole (8-3) by rotational pin (9) and pin-and-hole (1-6) is hinged on the axle sleeve (1).
3. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: the back of described moving block (8) is provided with counterbore (8-2), described moving block back-moving spring (6) one ends are installed in the counterbore (8-2), the other end is compressed by spring catch (7), and spring catch (7) is fastened on the axle sleeve (1) by screw (10).
4. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: the tail end of described conical head bolt (3) has radial direction through hole (3-2), is inserted with handle (4) in the radial direction through hole (3-2).
5. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: described guide rod (5) is multidiameter, described radially-directed hole (1-5) is shoulder hole, the shaft shoulder on the guide rod (5) can with radially-directed hole (1-5) in step offset.
6. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: the radially-directed hole (1-5) on the described axle sleeve (1) is three and circumferentially uniform, described guide rod (5), moving block (8) homogeneous phase should be three.
7. axle shaft end according to claim 1 three holes processing positioning tool, it is characterized in that: described drill bushing (2) has radial convex gear (2-3), and the outer face of the inboard of radial convex gear (2-3) and the end plate (1-2) of axle sleeve (1) offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433604 CN202894770U (en) | 2012-08-29 | 2012-08-29 | Car axle end three-hole machining and positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433604 CN202894770U (en) | 2012-08-29 | 2012-08-29 | Car axle end three-hole machining and positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894770U true CN202894770U (en) | 2013-04-24 |
Family
ID=48115486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220433604 Expired - Fee Related CN202894770U (en) | 2012-08-29 | 2012-08-29 | Car axle end three-hole machining and positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894770U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924025A (en) * | 2015-05-05 | 2015-09-23 | 柳州三农科技有限公司 | Processing method for hollow cylinder component with grooved side wall |
| CN106736435A (en) * | 2016-12-27 | 2017-05-31 | 德清崎辉机械科技有限公司 | A kind of square nut presses Pneumatic fixture soon |
| CN108080667A (en) * | 2017-11-08 | 2018-05-29 | 蒋泽华 | A kind of three hole processing device of shaft end |
-
2012
- 2012-08-29 CN CN 201220433604 patent/CN202894770U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924025A (en) * | 2015-05-05 | 2015-09-23 | 柳州三农科技有限公司 | Processing method for hollow cylinder component with grooved side wall |
| CN106736435A (en) * | 2016-12-27 | 2017-05-31 | 德清崎辉机械科技有限公司 | A kind of square nut presses Pneumatic fixture soon |
| CN108080667A (en) * | 2017-11-08 | 2018-05-29 | 蒋泽华 | A kind of three hole processing device of shaft end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |