CN204053591U - Yoke keyseat, drilling-tapping clamp - Google Patents
Yoke keyseat, drilling-tapping clamp Download PDFInfo
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- CN204053591U CN204053591U CN201420539766.2U CN201420539766U CN204053591U CN 204053591 U CN204053591 U CN 204053591U CN 201420539766 U CN201420539766 U CN 201420539766U CN 204053591 U CN204053591 U CN 204053591U
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- riser
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- seam
- keyseat
- yoke
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Abstract
The utility model discloses a kind of yoke keyseat, drilling-tapping clamp, comprise base, base side is provided with cylinder, and the extension bar of cylinder is connected with the hold-down bolt for downward workpiece pressing, base top is provided with seam cover, and seam is arranged with the centre bore for place work piece; The sidewall of seam cover is connected with adjusting bolt, and adjusting bolt is connected with riser, and riser is set in adjusting bolt by the unthreaded hole that it is arranged; The top of riser is hinged with rotation V-block by connecting pin, and rotation V-block is provided with the U-type groove for fixation workpiece towards the side that seam overlaps.The utility model is the mend gene to C series yoke keyseat, drilling-tapping clamp, replace the original processing of spline location keyway, drilling and tapping, solve keyway in the past, screwed hole form and position tolerance is difficult to the problem that ensures, substantially increase the qualification rate of product, enhance stability and the reliability of product, and significantly reduce labour intensity.
Description
Technical field
The utility model relates to transmission shaft of motor vehicle manufacturing technology field, especially a kind of yoke keyseat, drilling-tapping clamp.
Background technology
Along with the fast development of China's machinery manufacturing industry and the progress of mechanical technique, the gap between China and advanced country is more and more less.But with regard to current state, the manufacturing industry technology of China and advanced country in the world also has a certain distance.In order to the survival and development of enterprise, we will constantly carry out innovating and improving, and abandon the mode of production of high energy consumption in the past, high consumptive material, high labour intensity and poor efficiency, actively find new energy-saving and cost-reducing manufacturing mode.
Part shown in Fig. 1 and Fig. 2 is C series of splines yoke, and as depicted in figs. 1 and 2, this slip shaft yoke is provided with external splines 1, and its large end is provided with step 2.This step 2 place outer surface is provided with seam 3.On C series of splines yoke, keyway 4 is of a size of L, and its symmetry relative to spline is Φ 0.1mm; Part screwed hole 5 is of a size of M, and it is 0.15mm relative to the position degree of external splines 1 and seam 3.Traditional processing method utilizes spline as machining benchmark to process keyway 4 and screwed hole 5.Be get the center of L3 center as a key tooth with locating surface line before milling spline, then spline is uniform with the phase place ensureing spline and L3.Therefore utilize spline to locate as machining benchmark in theory, carrying out keyseat, drilling and tapping is the form and position tolerance that also can ensure keyway and screwed hole in theory.
But in actual process, need to hold out against an increase pin on fixture at centre bore and contact with locating surface, need when milling spline this pin to stir part rotation and carry out milling spline.Because locating surface is the black skin forging out, therefore the spline of each part processes the center phase uniformity of rear spline and L3 and incomplete same, therefore can produce form and position tolerance off-gage phenomenon in the process of keyseat, drilling and tapping, and then add the percent defective of part.
As shown in Figure 3, improve front jig and mainly comprise cylinder 6, base 7, spline positioning sleeve 8, parallels 9, the extension bar of cylinder 6 is connected with hold-down bolt 10.This fixture fixture assembling on lathe is: first spline positioning sleeve 8 and base are linked together, then cylinder 6 is fixed on the base 7 of fixture fixture, parallels 9 and base 7 are connected and fixed, and the excircle dimension of the hole size of parallels 9 and the back of the body end face of part is matched in clearance.
The course of work and the principle of existing fixture fixture are: first cylinder 6 will be connected, part (C series of splines yoke namely to be processed) is placed in spline positioning sleeve 8 by spline fitted, then start cylinder 6, make hold-down bolt 10 compressing component, part is processed.Because part is arranged in spline positioning sleeve 8 by spline fitted, in the process of part, therefore there will be part spline fitted tight, to such an extent as to part can not engage completely with spline positioning sleeve 8, causes the isolation of part even to be scrapped.In spline process, the key tooth of spline is not completely the same in addition, and therefore in keyseat, drilling and tapping process, the position of engagement of spline can exist deviation, causes form and position tolerance overproof.
Utility model content
The purpose of this utility model is to provide a kind of qualification rate that can improve machining accuracy and part, reduces labour intensity and ensures yoke keyseat, the drilling-tapping clamp of form and position tolerance.
For achieving the above object, yoke keyseat of the present utility model, drilling-tapping clamp comprise base, base side is provided with cylinder, the extension bar of cylinder is connected with the hold-down bolt for downward workpiece pressing, it is characterized in that: base top is provided with seam cover, seam is arranged with the centre bore for place work piece; The sidewall of seam cover is connected with adjusting bolt, and adjusting bolt is connected with riser, and riser is set in adjusting bolt by the unthreaded hole that it is arranged; The top of riser is hinged with rotation V-block by connecting pin, and rotation V-block is provided with the U-type groove for fixation workpiece towards the side that seam overlaps.
Described hold-down bolt is positioned at directly over the centre bore of described seam cover.
The bottom of described hold-down bolt is provided with compact heap.
Adjusting bolt on the right side of described riser is provided with the adjusting nut for regulating riser right position, and in the adjusting bolt on the left of described riser, radial protrusion is provided with positioning step, is provided with the adjustment pad for regulating riser right position between positioning step and riser.
During use, operating personnel utilize the unthreaded hole on riser 13, riser 13 is moved left and right to suitable position along adjusting bolt 12, and by the left of riser 13 (on the right side of positioning step 18) arrange regulate pad, the mode of tightening adjusting nut 17 on the right side of riser 13 compresses riser 13.Regulate pad by increase and decrease or change and regulate spacer thickness and the mode of corresponding change adjusting nut 17 right position, regulate the right position of riser 13.
After riser 13 fixes, cylinder 6 is connected, part to be processed is placed in seam cover 11, is fixed by the locating surface rotating V-block 14 pairs of parts and is located, then by cylinder 6 compressing component.The seam cylindrical of part is that small―gap suture coordinates with the seam inner circle of fixture.Be stir part by the locating surface of part to carry out machine add operation in milling spline operation, therefore pass through the location rotating V-block 14 pairs of locating surfaces in keyseat, drilling and tapping operation, the form and position tolerance of spline and keyway and screwed hole can be ensured better.Owing to not having the structure of spline fitted, location, therefore part to be processed is be easy to lower members (put into, take out part) in this fixture fixture, can reduce so again labor strength, improve the efficiency of workman.
By checking the data obtained to the form and position tolerance machining rear part, can judge that the fixture after improving can well ensure the form and position tolerance of keyway relative to spline very clearly, and screwed hole is relative to the form and position tolerance of spline and seam, and the uniformity of part form and position tolerance is fine.And the form and position tolerance of the part processed by spline positioning sleeve is mainly relevant with the position of spline, if spline position deviation, so the form and position tolerance of keyway and screwed hole will change, and uniformity is bad.And if when the spline length of yoke is long, there is the possibility being not easy to be loaded in spline and spline positioning sleeve, if after using brute-force to be loaded into, be difficult to take out in fixture fixture after waiting part to machine, add the labour intensity of workman, and reduce efficiency.
The utility model has following advantage:
The setting of the parts such as seam cover, provide a kind of fixing and locating the mode of part to be processed newly, spline positioning sleeve need not be adopted, thus avoid part in the past can not engage completely with spline positioning sleeve, the phenomenon causing the isolation of part even to be scrapped, it also avoid the phenomenon being difficult to part to take out from spline positioning sleeve, thus reduces the labour intensity of workman, improve product percent of pass, ensure screwed hole form and position tolerance.The utility model structure is simple, manufactures and uses all very convenient.
In a word, the utility model is the mend gene to C series yoke keyseat, drilling-tapping clamp, replace the original processing of spline location keyway, drilling and tapping, solve keyway in the past, screwed hole form and position tolerance is difficult to the problem that ensures, substantially increase the qualification rate of product, enhance stability and the reliability of product, and significantly reduce labour intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of C series of splines yoke to be processed;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of existing keyseat, drilling-tapping clamp;
Fig. 4 is the structural representation after the utility model removes base, cylinder and hold-down bolt;
Fig. 5 is the top view of Fig. 4.
Detailed description of the invention
As shown in Fig. 4, Fig. 5 and Fig. 3, yoke keyseat of the present utility model, drilling-tapping clamp comprise base 7, base 7 side is provided with cylinder 6, the extension bar of cylinder 6 is connected with the hold-down bolt 10 for downward workpiece pressing, base 7 top is provided with seam cover 11, and seam cover 11 is provided with the centre bore for place work piece; The sidewall of seam cover 11 is fixedly connected with adjusting bolt 12 by the mode of welding, and adjusting bolt 12 is connected with riser 13, and riser 13 is slided by the unthreaded hole that it is arranged and is set in adjusting bolt 12; The top of riser 13 is hinged with by connecting pin 19 and rotates V-block 14, rotates V-block 14 and is provided with U-type groove 15 for fixation workpiece towards the side of seam cover 11.Rotate V-block 14 to be merely able to do flip-flop movement in process, other any motion can not be participated in.
Described hold-down bolt 10 is positioned at directly over the centre bore of described seam cover 11.
The bottom of described hold-down bolt 10 is provided with compact heap 16.Compact heap 16 preferably adopts the material that hardness is lower, can prevent from like this damaging processed part in compression.
Adjusting bolt 12 on the right side of described riser 13 is provided with the adjusting nut 17 for regulating riser 13 right position, in adjusting bolt 12 on the left of described riser 13, radial protrusion is provided with positioning step 18, is provided with the adjustment pad for regulating riser 13 right position between positioning step 18 and riser 13.Regulate pad to be existing routine techniques, figure does not show.
Arranging of base 7, cylinder 6 and hold-down bolt 10 is same as the prior art, see background technology part and Fig. 3, no longer describes in detail herein.Not shown described base 7, cylinder 6 and hold-down bolt 10 in Fig. 4 and Fig. 5.
Compared with prior art, the utility model does not re-use spline positioning sleeve and parallels.Seam cover 11 is set in the parallels position of prior art fixture.
During use, operating personnel utilize the unthreaded hole on riser 13, riser 13 is moved left and right to suitable position along adjusting bolt 12, and by the left of riser 13 (on the right side of positioning step 18) arrange regulate pad, the mode of tightening adjusting nut 17 on the right side of riser 13 compresses riser 13.Regulate pad by increase and decrease or change and regulate spacer thickness and the mode of corresponding change adjusting nut 17 right position, regulate the right position of riser 13.
After riser 13 fixes, cylinder 6 is connected, part to be processed is placed in seam cover 11, is fixed by the locating surface rotating V-block 14 pairs of parts and is located, then by cylinder 6 compressing component.The seam cylindrical of part is that small―gap suture coordinates with the seam inner circle of fixture.Be stir part by the locating surface of part to carry out machine add operation in milling spline operation, therefore pass through the location rotating V-block 14 pairs of locating surfaces in keyseat, drilling and tapping operation, the form and position tolerance of spline and keyway and screwed hole can be ensured better.Owing to not having the structure of spline fitted, location, therefore part to be processed is be easy to lower members (put into, take out part) in this fixture fixture, can reduce so again labor strength, improve the efficiency of workman.
By checking the data obtained to the form and position tolerance machining rear part, can judge that the fixture after improving can well ensure the form and position tolerance of keyway relative to spline very clearly, and screwed hole is relative to the form and position tolerance of spline and seam, and the uniformity of part form and position tolerance is fine.And the form and position tolerance of the part processed by spline positioning sleeve is mainly relevant with the position of spline, if spline position deviation, so the form and position tolerance of keyway and screwed hole will change, and uniformity is bad.And if when the spline length of yoke is long, there is the possibility being not easy to be loaded in spline and spline positioning sleeve, if after using brute-force to be loaded into, be difficult to take out in fixture fixture after waiting part to machine, add the labour intensity of workman, and reduce efficiency.
Points for attention: the positioning datum of fixture and part directly affects the result after machining, so following requirement will be ensured preferably:
1. must ensure the perpendicularity of fixture seam and plane.
2. the center and the seam that rotate V-block 14 overlap the center of 11 as far as possible in one plane.
3., when placement part, must be first compress by rotating V-block 14 and regulate part, can cylinder 6 and hold-down bolt 10, compact heap 16 compressing component be passed through.
The fixture this time improved, instead of original spline by part seam allowance excircle orientation to locate, improve the qualification rate of product significantly, and the uniformity of the guarantee part of trying one's best, reduce the percent defective of part, improve the efficiency of workman simultaneously, decrease the labour intensity that workman is unnecessary in process of production.
Research and development illustrate:
In order to improve the precision of processing, improve the qualification rate of part, by Experimental Comparison, adopt seam cylindrical and locating surface to be benchmark, compressed by U-type groove locating surface more than 15, carry out keyseat, drilling and tapping, inventor mainly considers the following aspects:
1., because processing spline stirs part by locating surface and then completes the processing to spline, therefore re-use locating surface and carry out processing to keyway and screwed hole and relative more easily ensure its form and position tolerance.
2. the time of clamping parts is shortened again, can improve working (machining) efficiency.Part is originally not easy clamping when spline is long, and after using now the utility model, spline does not participate in positioning datum at this, is therefore convenient to clamping.
3. because seam and cylindrical process simultaneously, therefore carry out drilling and tapping with excircle orientation, be easy to ensure that screwed hole Geometrical Tolerance Principle to foreign round.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although be described in detail the utility model with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify to the utility model or equivalent replacement, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. yoke keyseat, drilling-tapping clamp, comprise base, base side is provided with cylinder, and the extension bar of cylinder is connected with the hold-down bolt for downward workpiece pressing, it is characterized in that: base top is provided with seam cover, seam is arranged with the centre bore for place work piece; The sidewall of seam cover is connected with adjusting bolt, and adjusting bolt is connected with riser, and riser is set in adjusting bolt by the unthreaded hole that it is arranged; The top of riser is hinged with rotation V-block by connecting pin, and rotation V-block is provided with the U-type groove for fixation workpiece towards the side that seam overlaps.
2. yoke keyseat according to claim 1, drilling-tapping clamp, is characterized in that: described hold-down bolt is positioned at directly over the centre bore of described seam cover.
3. yoke keyseat according to claim 1 and 2, drilling-tapping clamp, is characterized in that: the bottom of described hold-down bolt is provided with compact heap.
4. yoke keyseat according to claim 1 and 2, drilling-tapping clamp, it is characterized in that: the adjusting bolt on the right side of described riser is provided with the adjusting nut for regulating riser right position, in adjusting bolt on the left of described riser, radial protrusion is provided with positioning step, is provided with the adjustment pad for regulating riser right position between positioning step and riser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539766.2U CN204053591U (en) | 2014-09-19 | 2014-09-19 | Yoke keyseat, drilling-tapping clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539766.2U CN204053591U (en) | 2014-09-19 | 2014-09-19 | Yoke keyseat, drilling-tapping clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204053591U true CN204053591U (en) | 2014-12-31 |
Family
ID=52195176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420539766.2U Expired - Fee Related CN204053591U (en) | 2014-09-19 | 2014-09-19 | Yoke keyseat, drilling-tapping clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204053591U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141750A (en) * | 2016-08-23 | 2016-11-23 | 安徽池州家用机床股份有限公司 | A kind of for the punching of automobile long power transmission shaft fork face and shaving self-centering fixture |
| CN107214536A (en) * | 2017-05-27 | 2017-09-29 | 镇江远大传动机械有限公司 | The clamping device processed based on machining center to sliding surface on slip yoke |
| CN112122961A (en) * | 2020-08-12 | 2020-12-25 | 东风汽车底盘系统有限公司 | Universal clamp for processing flange yoke bolt hole |
-
2014
- 2014-09-19 CN CN201420539766.2U patent/CN204053591U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141750A (en) * | 2016-08-23 | 2016-11-23 | 安徽池州家用机床股份有限公司 | A kind of for the punching of automobile long power transmission shaft fork face and shaving self-centering fixture |
| CN107214536A (en) * | 2017-05-27 | 2017-09-29 | 镇江远大传动机械有限公司 | The clamping device processed based on machining center to sliding surface on slip yoke |
| CN112122961A (en) * | 2020-08-12 | 2020-12-25 | 东风汽车底盘系统有限公司 | Universal clamp for processing flange yoke bolt hole |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20210919 |