CN209551245U - End face drives fixture - Google Patents
End face drives fixture Download PDFInfo
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- CN209551245U CN209551245U CN201920169251.0U CN201920169251U CN209551245U CN 209551245 U CN209551245 U CN 209551245U CN 201920169251 U CN201920169251 U CN 201920169251U CN 209551245 U CN209551245 U CN 209551245U
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- face
- drive pin
- push rod
- voussoir
- grain
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- 238000009434 installation Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 238000003754 machining Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
This application discloses end faces to drive fixture, including grain-clamping table, drive pin and push rod, and the drive pin and push rod are slidably mounted on grain-clamping table, and the drive pin is used for the end face of top tight workpiece, and the push rod is used to push the end face of the top workpiece of drive pin.The utility model has the following beneficial effects: the both ends of the surface that traditional gripping is changed into top tight workpiece are fixed, so that the retaining part that can not be processed is not present in workpiece, while being clamped without secondary, machining accuracy is greatly improved with processing efficiency；The problem of being not in Datum transfer in process.
Description
Technical field
The utility model relates to clamp for machining fields more particularly to a kind of end face to drive fixture.
Background technique
For circular shaft type workpiece, (both ends of workpiece are all usually to be provided with centre bore, and centre bore is located at the axis of workpiece
On heart line) the currently used method of clamping of processing be chuck (or heart carrier dead man) clamping, chuck clamp method (heart
Collet dead man is similar with chuck clamp method) as shown in Fig. 1, chuck (4) is fixedly mounted on machine tool chief axis connecting flange (2),
Workpiece (5) one end is clamped in chuck (4), and workpiece (5) other end holds out against (tailstock top by the tailstock centre (6) of tailstock tool (3)
In the centre bore of tapering tip portion insertion workpiece (5) of sharp (6)), while being mounted on the power rail on lathe (1) and can be used to adjust
Clamping length between workpiece (5) and chuck (4).(this section can delete)
Above-mentioned method of clamping has the following defects, i.e., retaining part is not capable of processing, and the secondary clamping that needs to turn around is added again
Work, processing efficiency is low；Circular shaft processing post-processing position confronting parts both ends centre bore bounce precision cannot be guaranteed machining accuracy not
It can guarantee.
Utility model content
The utility model drives fixture in view of the above-mentioned problems, proposing a kind of end face.
The technical solution that the utility model is taken is as follows:
A kind of end face drives fixture, including grain-clamping table, drive pin and push rod, the drive pin and push rod are slidably mounted on
On grain-clamping table, the drive pin is used for the end face of top tight workpiece, and the push rod is used to push the end face of drive pin top tight workpiece.
It is not present come the side of top tight workpiece due to being clamping workpiece unlike chuck in the present apparatus by drive pin
Retaining part the case where not just being capable of processing there is no retaining part naturally also, while clamping, machining accuracy and processing without secondary
Efficiency greatly improves.
The present apparatus fixes the both ends of the surface that traditional gripping is changed into top tight workpiece, so that there is no can not add workpiece
The retaining part of work, while being clamped simultaneously without secondary, machining accuracy is greatly improved with processing efficiency.
It optionally, further include that centralized positioning is top, the centralized positioning is top to be set on grain-clamping table, the centralized positioning
It is top to be used to match positioning with the centre bore on workpiece.
There is also Second Problems, i.e. chuck to clamp the centre bore that benchmark is not workpieces processing for traditional chuck clamping, with
, there is Datum transfer in the diameter centering of clamping.It is top by setting centralized positioning in the present apparatus, so that center
Locating centre holds out against the centre bore at workpiece centre, ensures that in process be not in Reference misalignment in this way
The problem of error.Specific top be bolted of centralized positioning is set on grain-clamping table.
Optionally, the drive pin is multiple by having, and drive pin is distributed in the surrounding edge at centralized positioning tip.
It optionally, further include floating compensation mechanism, the floating compensation mechanism is fixedly installed on push rod, and the floating is mended
Mechanism is repaid for making the end face of the equal top tight workpiece of each drive pin.
Optionally, further include guiding jackscrew, the guiding jackscrew is set on grain-clamping table, the push rod and drive pin with
It is oriented to jackscrew contact, the guiding jackscrew is for preventing push rod and drive pin from deflecting when sliding again.
The guiding jackscrew has multiple, and each drive pin and push rod are contacted with a guiding jackscrew, and push rod was sliding
Guiding jackscrew strictly limits push rod and deflects in journey；But drive pin needs to slide top tight workpiece, rotates in top tight workpiece
Journey drive pin can bear biggish power, so the deflection of certain angle (angle value is smaller) can occur for drive pin, be oriented to jackscrew
It is very small in the presence of the deflection amplitude that can guarantee drive pin, it is equivalent to almost without deflection, while it is more preferable that drive pin is had
Adaptivity.
It optionally, further include backing stop structure, the backing stop structure is set on push rod, and the backing stop structure is pushed away for preventing
Bar slides into grain-clamping table completely.
Specific backing stop structure is anti-return nut.
Optionally, bolt hole is provided on the grain-clamping table, grain-clamping table passes through the bolt hole and machine tool chief axis connection method
Orchid matches fixation.
Optionally, the grain-clamping table includes chuck body and support plate, and the chuck body is removably matched with support plate
It is combined, and forms movable chamber between chuck body and support plate, the push rod and drive pin are partially located at movable chamber.
Also in movable chamber, chuck body and support plate are cooperated by bolt one specific voussoir lever mechanism
It rises.
Optionally, the voussoir lever mechanism includes pedestal, and fixed link, rotating bar, the first voussoir and the second voussoir are described
Several short slots are provided on pedestal, the both ends of the fixed link are separately fixed in two short slots of pedestal, and the rotating bar turns
Dynamic to be installed in fixed link, the both ends of the rotating bar are located in the short slot of pedestal, and are in " cross between rotating bar and fixed link
Shape " arrangement, first voussoir and the second voussoir are rotatablely installed respectively in the both ends of rotating bar, and the first voussoir and the second voussoir
It is located at the two sides of fixed link.
Voussoir lever mechanism is installed on push rod by bolt.Push rod is pushed along grain-clamping table inner cavity slideway to drive pin side
When, thrust finally causes drive pin mobile up to the end face of top tight workpiece to workpiece side.Since workpiece end face can not be absolutely
Vertical smooth or even inclination, drive pin have sequencing when withstanding workpiece end face, the drive pin of stress can be to push rod one at first
Side is mobile and contacts voussoir lever mechanism, and voussoir lever mechanism is a cross universal mechanism, and drive pin can adaptive work end
Thrust is transferred to other drive pins by face operating condition, so that several drive pins can adaptive end face after completely attaching to workpiece end face
Out-of-flatness or inclination, stress reach consistent.
Specific fixed link is fixedly mounted in the short slot of pedestal by bolt or screw, the first voussoir and the second voussoir
To rotate around rotating bar, the first voussoir and the second voussoir are used to support drive pin.
The beneficial effects of the utility model are: the both ends of the surface that traditional gripping is changed into top tight workpiece are fixed, make
It obtains workpiece and the retaining part that can not be processed is not present, while being clamped without secondary, processing efficiency greatly improves；In process not
The problem of will appear Datum transfer, machining accuracy greatly improve.
Detailed description of the invention:
Fig. 1 is chuck clamping method schematic diagram；
Fig. 2 is that end face drives fixture structural schematic diagram；
Fig. 3 is that end face drives fixture clamp structure schematic diagram；
Fig. 4 is the structural schematic diagram of voussoir lever mechanism；
Fig. 5 is globular hinge structure working principle figure.
Each appended drawing reference in figure are as follows: 1, power rail, 2, machine tool chief axis connecting flange, 3, tailstock tool, 4, chuck, 5, work
Part, 6, tailstock centre, 7, chuck body, 701, screw hole, 8, support plate, 9, centralized positioning it is top, 10, drive pin, 11, bolt,
12, voussoir lever mechanism, 13, guiding jackscrew, 14, anti-return nut, 15, push rod, 1201, pedestal, 1202, fixed link, 1203,
Rotating bar, the 1204, first voussoir, the 1205, second voussoir, 1206, short slot, 16, globular hinge structure, 1601, spherical surface.
Specific embodiment:
Below with reference to each attached drawing, the utility model is described in detail.
As shown in Fig. 2, a kind of end face drives fixture, including grain-clamping table, drive pin and push rod 15, drive pin and push rod
15 are slidably mounted on grain-clamping table, and drive pin is used for the end face of top tight workpiece, and push rod 15 is for pushing the top workpiece of drive pin
End face.
It is not deposited come the side of top tight workpiece due to being clamping workpiece unlike chuck in the present apparatus by drive pin 10
In retaining part, the case where not just being capable of processing there is no retaining part naturally also, while clamping without secondary, machining accuracy with plus
Work efficiency rate greatly improves.
The present apparatus fixes the both ends of the surface that traditional gripping is changed into top tight workpiece, so that there is no can not add workpiece
The retaining part of work, while being clamped without secondary, machining accuracy is greatly improved with processing efficiency.
It as shown in Fig. 2, further include centralized positioning top 9, centralized positioning top 9 is set on grain-clamping table, centralized positioning
Top 9 for matching positioning with the centre bore on workpiece.
There is also Second Problems, i.e. chuck to clamp the centre bore that benchmark is not workpieces processing for traditional chuck clamping, with
, there is Datum transfer in the diameter centering of clamping.By making by setting centralized positioning top 9 in the present apparatus
It obtains centralized positioning top 9 and holds out against the centre bore at workpiece centre, ensure that in process be not in base in this way
The problem of quasi- not coincidence error.Specific centralized positioning top 9 is fixedly installed on grain-clamping table by bolt 11.
As shown in Fig. 2, drive pin is multiple by having, and drive pin is distributed in the surrounding edge at centralized positioning tip.
It as shown in Fig. 2, further include voussoir lever mechanism 12, voussoir lever mechanism 12 is fixedly installed on push rod 15, wedge
Block lever mechanism 12 is used to make the end face of the equal top tight workpiece of each drive pin.
Voussoir lever mechanism 12 is installed on push rod 15 by bolt 11.Push rod 15 is along grain-clamping table inner cavity slideway to drive pin
When side pushes, thrust finally causes drive pin mobile up to the end face of top tight workpiece to workpiece side.Not due to workpiece end face
Smooth or inclination, drive pin have sequencing when withstanding workpiece end face, the drive pin of stress can be to 15 1 sidesway of push rod at first
Voussoir lever mechanism 12 is moved and contacts, voussoir lever mechanism 12 makes a cross universal mechanism, and drive pin can adaptive work end
Thrust is transferred to other drive pins by face operating condition, so that the adaptive end face of 4 drive pins energy after completely attaching to workpiece end face is not
Smooth or inclination, stress reach consistent.
Herein it should be noted that voussoir lever mechanism 12 can also be replaced with spherical hinging mechanism as shown in Fig. 5
The effect in generation, spherical hinging mechanism is consistent with the effect of voussoir regulations and parameters mechanism 12.Attached drawing 5 is spherical hinging mechanism working principle
Detailed maps.
It as shown in Fig. 2, further include guiding jackscrew 13, guiding jackscrew 13 is set on grain-clamping table, push rod 15 and drive pin
It is contacted with guiding jackscrew 13, guiding jackscrew 13 is for preventing push rod 15 and drive pin from deflecting when sliding again.
Guiding jackscrew 13 has multiple, and each drive pin and push rod 15 are contacted with a guiding jackscrew 13, and push rod 15 is in cunning
Strictly limitation push rod 15 deflects guiding jackscrew 13 during dynamic；But drive pin 10 needs top tight workpiece, is clamping workpiece
Rotation process drive pin 10 can bear biggish power, so the deflection of certain angle (angle value is smaller) can occur for drive pin 10,
The presence of guiding jackscrew 13 can guarantee that the deflection amplitude of drive pin 10 is very small, be equivalent to almost without deflection.
It as shown in Fig. 2, further include backing stop structure, backing stop structure is set on push rod 15, and backing stop structure is pushed away for preventing
Bar 15 slides into grain-clamping table completely.
Specific backing stop structure is anti-return nut 14.
As shown in Fig. 2, screw hole 701 is provided on grain-clamping table, grain-clamping table passes through screw hole 701 and machine tool chief axis connecting flange
Match fixation.
As shown in Fig. 2, grain-clamping table includes chuck body 7 and support plate 8, and chuck body 7 is removably matched with support plate 8
It is combined, and forms movable chamber between chuck body 7 and support plate 8, push rod 15 and drive pin are partially located at movable chamber.
Specific voussoir lever mechanism 12 also in movable chamber, matched with support plate 8 by bolt 11 by chuck body 7
It is combined.
The working principle of the present apparatus is as shown in Fig. 3, and the present apparatus is first installed to machine tool chief axis connecting flange 2, then will
Workpiece 5 is installed between tailstock centre 6 and centralized positioning top 9, and then power rail 1 is close to the present apparatus, power rail 1 into one
Step drives push rod 15 to move, and push rod 15 drives the end face of 10 top tight workpiece 5 of drive pin.
The structural schematic diagram of voussoir lever mechanism 12 is as shown in Fig. 4, and voussoir lever mechanism includes pedestal 1201, fixed link
1202, rotating bar 1203, the first voussoir 1204 and the second voussoir 1205 are provided with several short slots 1206 on pedestal 1201, fixed
The both ends of bar 1202 are separately fixed in two short slots 1206 of pedestal 1201, and rotating bar 1203 is rotatablely installed in fixed link
On 1202, the both ends of rotating bar 1203 are located in the short slot 1206 of pedestal 1201, and between rotating bar 1202 and fixed link 1203
It being arranged in " cross ", the first voussoir 1204 and the second voussoir 1205 are rotatablely installed respectively in the both ends of rotating bar 1203, and the
One voussoir 1204 and the second voussoir 1205 are located at the two sides of fixed link 1202.
Specific fixed link 1202 is fixedly mounted in the short slot 1206 of pedestal 1201 by bolt 11 or screw, first wedge
Block 1204 and the second voussoir 1205 can be rotated around rotating bar 1203, and 1204 pieces of first wedge and the second voussoir 1205 are used to branch
Support drive pin 10.
As shown in Fig. 5, spherical hinging mechanism 16 is mounted on push rod by bolt 11, and spherical hinging mechanism 16 is located at
Chuck body 7 and support plate 8 are formed by movable chamber, and the planar spherical surface 1601 of spherical hinging mechanism 16 withstands drive pin
10。
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field similarly includes within the protection scope of the present utility model.
Claims (10)
1. a kind of end face drives fixture, which is characterized in that including grain-clamping table, drive pin and push rod, the drive pin and push rod are equal
It is slidably mounted on grain-clamping table, the drive pin is used for the end face of top tight workpiece, and the push rod is for pushing drive pin to hold out against work
The end face of part.
2. end face as described in claim 1 drives fixture, which is characterized in that further include that centralized positioning is top, the center is fixed
Position is top to be set on grain-clamping table, and the centralized positioning is top for matching centering with the centre bore on workpiece.
3. end face as claimed in claim 2 drives fixture, which is characterized in that the drive pin is multiple by having, and drive pin point
It is distributed in the surrounding edge at centralized positioning tip.
4. end face as claimed in claim 3 drives fixture, which is characterized in that further include floating compensation mechanism, the floating is mended
It repays mechanism to be fixedly installed on push rod, the floating compensation mechanism is used to make the end face of the equal top tight workpiece of each drive pin.
5. end face as described in claim 1 drives fixture, which is characterized in that further include guiding jackscrew, the guiding jackscrew is set
It is placed on grain-clamping table, the push rod and drive pin are contacted with guiding jackscrew, and the guiding jackscrew is for preventing push rod and driving
Pin deflects in sliding.
6. end face as described in claim 1 drives fixture, which is characterized in that further include backing stop structure, the backing stop structure is set
It is placed on push rod, the backing stop structure is for preventing push rod from sliding into grain-clamping table completely.
7. end face as described in claim 1 drives fixture, which is characterized in that be provided with bolt on the grain-clamping table clamp body
Hole, grain-clamping table match fixation with machine tool chief axis connecting flange by the bolt hole.
8. end face as described in claim 1 drives fixture, which is characterized in that the grain-clamping table includes chuck body and support
Disk, the chuck body is removably engaged in together with support plate, and movable chamber is formd between chuck body and support plate,
The push rod and drive pin are partially located at movable chamber.
9. end face as claimed in claim 4 drives fixture, which is characterized in that the floating compensation mechanism is voussoir Lever machine
Structure, the voussoir lever mechanism include pedestal, fixed link, rotating bar, the first voussoir and the second voussoir, are provided on the pedestal
Several short slots, the both ends of the fixed link are separately fixed in two short slots of pedestal, and the rotating bar rotational installation is in fixation
On bar, the both ends of the rotating bar are located in the short slot of pedestal, and arrange between rotating bar and fixed link in " cross ", described
First voussoir and the second voussoir are rotatablely installed respectively in the both ends of rotating bar, and the first voussoir and the second voussoir are located at fixation
The two sides of bar.
10. end face as claimed in claim 4 drives fixture, which is characterized in that the floating compensation mechanism is globular hinge machine
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169251.0U CN209551245U (en) | 2019-01-30 | 2019-01-30 | End face drives fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169251.0U CN209551245U (en) | 2019-01-30 | 2019-01-30 | End face drives fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209551245U true CN209551245U (en) | 2019-10-29 |
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ID=68310151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920169251.0U Active CN209551245U (en) | 2019-01-30 | 2019-01-30 | End face drives fixture |
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| Country | Link |
|---|---|
| CN (1) | CN209551245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070498A (en) * | 2021-05-21 | 2021-07-06 | 上海星合机电有限公司 | End face driving ejector pin |
| CN118617165A (en) * | 2024-08-15 | 2024-09-10 | 华洋海纳(北京)科技有限公司 | An adaptive fixture |
-
2019
- 2019-01-30 CN CN201920169251.0U patent/CN209551245U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070498A (en) * | 2021-05-21 | 2021-07-06 | 上海星合机电有限公司 | End face driving ejector pin |
| CN118617165A (en) * | 2024-08-15 | 2024-09-10 | 华洋海纳(北京)科技有限公司 | An adaptive fixture |
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