CN102554644B - Special clamp for transmission piston die-casting part of rack - Google Patents
Special clamp for transmission piston die-casting part of rack Download PDFInfo
- Publication number
- CN102554644B CN102554644B CN201110436716.2A CN201110436716A CN102554644B CN 102554644 B CN102554644 B CN 102554644B CN 201110436716 A CN201110436716 A CN 201110436716A CN 102554644 B CN102554644 B CN 102554644B
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- CN
- China
- Prior art keywords
- casting part
- rack
- piston die
- transmission piston
- butt joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a special clamp for a transmission piston die-casting part of a rack, which is characterized in that a main body of the special clamp is a clamp body, a butt-joint head matched with the shape of the transmission piston die-casting part of the rack is formed at one end of the clamp body, and the special clamp is provided with two pressing claws symmetrically arranged relative to the transmission piston die-casting part of the rack. The pressing claws are connected onto the butt-joint head through pins, one external supporting pin is in bolt connection in the butt-joint head through a symmetrical center of the two pressing claws in a penetrating mode, the external supporting pin is provided with a pin cap with taper, and the pin cap is contacted with claw tails of the two pressing claws. By means of the application of the technical scheme of the special clamp, the special clamp is simple in operation and has universal applicability to different dimensional changes of the piston die-casting part. By means of the application of the special clamp for the transmission piston die-casting part of the rack, the process difficulty is reduced, and the product quality of the workpiece processing and the processing efficiency are greatly improved. In addition, the special clamp for the transmission piston die-casting part of the rack meets needs of volume production of the piston die-casting parts.
Description
Technical field
The present invention relates to a kind of industrial processes special fixture, particularly relate to a kind of specific aim and carry out firm clamping for transmission piston die-casting part of rack, carry out the special fixture of turning operation, belong to mechanical manufacturing field.
Background technology
In the machining to general industry part, especially in turnery processing, need Set and Positioning part to be processed being carried out to high accuracy, high stability.Prior art is when lathe process rack-driving piston die casting workpiece, what adopt is twice cylindrical fixture scheme, due to the restriction of piston details product structure and size, first adopt one end of clamping with three-jaw chuck piston details cylindrical, realize part processing to foreign round, turn around again after completion of processing to process the other end.Because clamping amount is less, easily distortion and centering precision is low, twice clamping increases axiality and the deviation from cylindrical form of piston details, and percent defective is higher, and because this increasing man-hour, seriously limits the lifting of work pieces process efficiency.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is the special fixture proposing a kind of tooth bar conventional piston die casting, to solve this type of part in the stability carrying out keeping when the high strength processing operation such as cutting relative lathe tool and lathe, thus improving production efficiency and product quality.
Above-mentioned purpose of the present invention, to be achieved by the following technical programs: a kind of special fixture of transmission piston die-casting part of rack, it is characterized in that: the main body of described special fixture is a clamp body, described clamp body one end forms the butt joint with transmission piston die-casting part of rack form fit, and two paws that described special fixture has relative transmission piston die-casting part of rack symmetry and establishes, described paw is arranged in butt joint by pivot pin, an outer support pin is spirally connected from the symmetrical centre of two paws and is arranged in butt joint, described outer support pin has the pin cap of band tapering, pin cap contacts with the pawl tail of two paws.
Further, described outer support pin is when from butt joint, spiral exits, and the pawl head of described two paws to rotate and close to each other around pivot pin, and described outer support sells spiral when going deep into butt joint, and the pawl head of described two paws rotates around pivot pin and is separated from each other.
Further, the outside of described pivot pin opposed jaw body is provided with stop screw, and described stop screw is fixedly attached in butt joint.
Further, described stop screw is interior hexangle type screw without nut.
Further, described butt joint is provided with the teeth groove with transmission piston die-casting part of rack toothing Corresponding matching.
Further, the pin cap of described outer support pin is interior hexangle type.
After special fixture of the present invention is able to application implementation, its significant technique effect is: this special fixture is simple to operate, has the general applicability of the piston die casting part for different size change.Its application reduces technology difficulty, drastically increases end product quality and the working (machining) efficiency of work pieces process, adapts to the batch production demand of this type of piston die casting.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is the basic structure signal of special fixture of the present invention and the process schematic of clamping workpiece thereof.
Fig. 2 is the structure schematic top plan view after special fixture of the present invention completes clamping workpiece.
Fig. 3 and Fig. 4 is the movement relation schematic diagram of specific purpose tool of the present invention China and foreign countries support pin and paw respectively.
Detailed description of the invention
The present invention is directed to existing turning attachment and need twice clamping at clamping transmission piston die-casting part of rack, the deficiency of processing step by step, innovation provides a kind of novel special fixture, by this fixture, only need a step can make workpiece to be processed securely clamping put in place, required high strength machining is carried out to it.As shown in Figure 1, the main body of this special fixture is a clamp body 1, this clamp body 1 one end forms the butt joint 11 with transmission piston die-casting part of rack 7 form fit, and two paws 2 that this special fixture has relative transmission piston die-casting part of rack 7 symmetry and establishes, this paw is arranged in butt joint 11 by pivot pin 3, an outer support pin 5 is spirally connected from the symmetrical centre of two paws 2 and is arranged in butt joint 11, this outer support pin 5 has the pin cap of band tapering, and pin cap contacts with the pawl tail 21 of two paws 2.
As the further optimization of such scheme, this butt joint 11 is provided with the teeth groove 111 with transmission piston die-casting part of rack 7 toothing 71 Corresponding matching.In addition the outside of this pivot pin opposed jaw body is also provided with stop screw 4, and this stop screw is fixedly attached in butt joint, drives the skew play of paw on workpiece attaching direction to prevent pivot pin.Above-mentioned stop screw wherein can be interior hexangle type screw without nut, butt joint appearance of submerging completely under attaching state, and the pin cap of above-mentioned outer support pin also can be the nut of interior hexangle type, is convenient to embody the professional of this type of processing operation.
From the dynamic structure of special fixture of the present invention, as shown in Figure 3 and Figure 4, this outer support pin 5 is when from butt joint 11, spiral exits, the pawl head 22 of these two paws 2 to rotate and close to each other around pivot pin, for the transmission piston die-casting part of rack completing toothing and be engaged with teeth groove, can realize its further clamping effect by both sides paw, as shown in Figure 2.In contrast, when the cutting operation completing this workpiece to be processed needs to change workpiece, only outer support pin spiral need be goed deep into butt joint, now the pawl head 22 of two paws 2 just rotates around pivot pin and is separated from each other, decontrol the clamping effect to workpiece with this, make the workpiece machined be convenient to change.
From an example of embodiment, the outer support pin of this band taper pin cap has left hand thread, and the screw on corresponding clip is concrete is also left hand thread.Outer support pin is arranged on after on clamp body, and when being with the outer support pin of tapering by inner hexagon spanner dextrorotation, this outer support pin just outwards moves along clamp body radius of gyration direction, namely realizes the step of the paw clamping shown in Fig. 3.
Visible by the above detailed description for special fixture structure &processes implementation procedure of the present invention, its application implementation has significant technique effect.Show as: this special fixture is simple to operate, there is the general applicability of the piston die casting part for different size change.Its application reduces technology difficulty, drastically increases end product quality and the working (machining) efficiency of work pieces process, adapts to the batch production demand of this type of piston die casting.
The present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (5)
1. the special fixture of a transmission piston die-casting part of rack, it is characterized in that: the main body of described special fixture is a clamp body, described clamp body one end forms the butt joint with transmission piston die-casting part of rack form fit, and two paws that described special fixture has relative transmission piston die-casting part of rack symmetry and establishes, described paw is arranged in butt joint by pivot pin, an outer support pin is spirally connected from the symmetrical centre of two paws and is arranged in butt joint, described outer support pin has the pin cap of band tapering, and pin cap contacts with the pawl tail of two paws; Described outer support pin is when from butt joint, spiral exits, and the pawl head of described two paws to rotate and close to each other around pivot pin, and described outer support sells spiral when going deep into butt joint, and the pawl head of described two paws rotates around pivot pin and is separated from each other.
2. the special fixture of a kind of transmission piston die-casting part of rack according to claim 1, is characterized in that: the outside of described pivot pin opposed jaw body is provided with stop screw, and described stop screw is fixedly attached in butt joint.
3. the special fixture of a kind of transmission piston die-casting part of rack according to claim 2, is characterized in that: described stop screw is interior hexangle type screw without nut.
4. the special fixture of a kind of transmission piston die-casting part of rack according to claim 1, is characterized in that: described butt joint is provided with the teeth groove with transmission piston die-casting part of rack toothing Corresponding matching.
5. the special fixture of a kind of transmission piston die-casting part of rack according to claim 1, is characterized in that: the pin cap of described outer support pin is interior hexangle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110436716.2A CN102554644B (en) | 2011-12-23 | 2011-12-23 | Special clamp for transmission piston die-casting part of rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110436716.2A CN102554644B (en) | 2011-12-23 | 2011-12-23 | Special clamp for transmission piston die-casting part of rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102554644A CN102554644A (en) | 2012-07-11 |
| CN102554644B true CN102554644B (en) | 2014-12-24 |
Family
ID=46401967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110436716.2A Expired - Fee Related CN102554644B (en) | 2011-12-23 | 2011-12-23 | Special clamp for transmission piston die-casting part of rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102554644B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481071A (en) * | 2013-09-16 | 2014-01-01 | 苏州工业职业技术学院 | Special fixture for piston die castings and application method thereof |
| CN113732765B (en) * | 2021-07-26 | 2024-05-03 | 苏州工业职业技术学院 | Nut adds clamping apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256538U (en) * | 1988-10-17 | 1990-04-24 | ||
| CN2316006Y (en) * | 1997-12-22 | 1999-04-28 | 何帮喜 | Bowling pin-setting robot |
| CN2829948Y (en) * | 2005-10-25 | 2006-10-25 | 陈相周 | Automatic chucking device of lathe chuck |
| CN101337328A (en) * | 2008-08-07 | 2009-01-07 | 郭文龙 | Intelligent clamping device of numerically controlled machine tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20012710U1 (en) * | 2000-07-22 | 2000-11-23 | Röhm GmbH, 89567 Sontheim | Bezel |
| JP4950123B2 (en) * | 2008-05-21 | 2012-06-13 | シーケーディ株式会社 | Clamping device |
| CN201415334Y (en) * | 2009-06-23 | 2010-03-03 | 齐齐哈尔二机床(集团)有限责任公司 | Special fixture of keyway fraise machine workpieces |
-
2011
- 2011-12-23 CN CN201110436716.2A patent/CN102554644B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256538U (en) * | 1988-10-17 | 1990-04-24 | ||
| CN2316006Y (en) * | 1997-12-22 | 1999-04-28 | 何帮喜 | Bowling pin-setting robot |
| CN2829948Y (en) * | 2005-10-25 | 2006-10-25 | 陈相周 | Automatic chucking device of lathe chuck |
| CN101337328A (en) * | 2008-08-07 | 2009-01-07 | 郭文龙 | Intelligent clamping device of numerically controlled machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102554644A (en) | 2012-07-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20141224 Termination date: 20201223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |