CN102554644A - 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
- CN102554644A CN102554644A CN2011104367162A CN201110436716A CN102554644A CN 102554644 A CN102554644 A CN 102554644A CN 2011104367162 A CN2011104367162 A CN 2011104367162A CN 201110436716 A CN201110436716 A CN 201110436716A CN 102554644 A CN102554644 A CN 102554644A
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- China
- Prior art keywords
- piston die
- die casting
- tooth bar
- drive piston
- bar drive
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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.)
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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, relate in particular to a kind of specific aim and be used for tooth bar drive piston die casting and carry out firm clamping, carry out the special fixture of turning operation, belong to mechanical manufacturing field.
Background technology
In machining, especially in the turning processing, need carry out the clamping location of high accuracy, high stability to part to be processed to the general industry part.Prior art is when machined into tooth bar drive piston die casting workpiece; What adopt is twice cylindrical clamping scheme; Because the restriction of piston details product structure and size; Adopt an end of scroll chuck clamping piston details cylindrical earlier, implementation part processing to foreign round, the other end again turns around to process after the completion of processing.Because the clamping amount is less, easy deformation and centering precision are low, and twice clamping increases the axiality and the deviation from cylindrical form of piston details, and percent defective is higher, and have therefore increased man-hour, have seriously limited the lifting of workpiece working (machining) efficiency.
Summary of the invention
Defective in view of above-mentioned prior art existence; The objective of the invention is to propose a kind of special fixture of tooth bar conventional piston die casting; Solving this type of part can keep relative lathe tool and lathe when the high strength operations such as cutting stability, thereby promote production efficiency and product quality.
Above-mentioned purpose of the present invention; To be achieved through following technical scheme: a kind of special fixture of tooth bar drive piston die casting; It is characterized in that: the main body of said special fixture is a clamp body, and said clamp body one end forms the butt joint with tooth bar drive piston die casting external appearance matching, and said special fixture has relative tooth bar drive piston die casting symmetry and two paws establishing; Said paw is arranged in the butt joint through pivot pin; Outer support pin is spirally connected from the symmetrical centre of two paws and is arranged in the butt joint, and said outer support pin has the pin cap of band tapering, and the pin cap contacts with the pawl tail of two paws.
Further, said outer support pin is when spiral withdraws from from butt joint, and the pawl head of said two paws is when pivot pin rotate and sell spiral and go deep into butt joint near, said outer support each other, and the pawl head of said two paws rotates and is separated from each other around pivot pin.
Further, the outside of the relative clamp body of said pivot pin is provided with stop screw, and said stop screw is fixedly attached in butt joint.
Further, said stop screw is interior hexangle type screw without nut.
Further, said butt joint is provided with the teeth groove with the corresponding coupling of tooth bar drive piston die casting toothing.
Further, the pin cap of said outer support pin is interior hexangle type.
After special fixture of the present invention was able to application implementation, its significant technique effect is: this special fixture was simple to operate, had the general applicability of the piston die casting part that changes to different size.Its application has reduced technology difficulty, has greatly improved the end product quality and the working (machining) efficiency of workpiece processing, adapts to the batch process demand of this type of piston die casting.
Following constipation closes the embodiment accompanying drawing, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the basic structure signal of special fixture of the present invention and the process sketch map of clamping workpiece thereof.
Fig. 2 is the structure schematic top plan view after special fixture of the present invention is accomplished clamping workpiece.
Fig. 3 and Fig. 4 are respectively the movement relation sketch mapes that specific purpose tool of the present invention supports pin and paw at home and abroad.
The specific embodiment
The present invention is directed to existing turning attachment and need twice clamping at clamping tooth bar drive piston die casting; The deficiency of processing step by step; Innovation provides a kind of novel special fixture; Through these anchor clamps, only need a step can make workpiece to be processed securely clamping put in place, it is carried out required high strength cut.As shown in Figure 1; The main body of this special fixture is a clamp body 1; These clamp body 1 one ends form the butt joint 11 with tooth bar drive piston die casting 7 external appearance matching; And this special fixture has relative tooth bar drive piston die casting 7 symmetries and two paws 2 establishing, and this paw is arranged in the butt joint 11 through pivot pin 3, and outer support pin 5 symmetrical centre from two paws 2 are spirally connected and are arranged in the butt joint 11; Should have the pin cap of being with tapering by outer support pin 5, the 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 tooth bar drive piston die casting 7 toothings 71 corresponding couplings.The outside of the relative clamp body of this pivot pin also is provided with stop screw 4 in addition, 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, the butt joint appearance of submerging fully under the 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 operations.
Dynamic structure from special fixture of the present invention; Like Fig. 3 and shown in Figure 4; Should outer support pin 5 when spiral withdraws from from butt joint 11, the pawl head 22 of these two paws 2 around pivot pin rotate and each other near, for the tooth bar drive piston die casting of completion toothing and teeth groove interlock; Can realize it is further clamped effect through the both sides paw, as shown in Figure 2.In contrast; When the cutting operation of accomplishing this workpiece to be processed need be changed workpiece, only need to support the pin spiral outward and go deep into butt joint, the pawl head 22 of two paws 2 just rotated and was separated from each other around pivot pin this moment; Decontrol clamping effect with this, make the workpiece that machines be convenient to change workpiece.
From an instance of embodiment, the outer support pin of this band tapering pin cap has left hand thread, and the screw on corresponding clip is concrete also is a left hand thread.After outer support pin was installed on the clamp body, when the outer support pin of band tapering passed through inner hexagon spanner dextrorotation, this outer support pin just outwards moved along clamp body radius of gyration direction, promptly realizes the step that paw shown in Figure 3 clamps.
Visible through above detailed description for special fixture structure of the present invention and technology implementation procedure, its application implementation has significant technique effect.Show as: this special fixture is simple to operate, has the general applicability of the piston die casting part that changes to different size.Its application has reduced technology difficulty, has greatly improved the end product quality and the working (machining) efficiency of workpiece processing, adapts to the batch process 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 requirement of the present invention.
Claims (6)
1. the special fixture of a tooth bar drive piston die casting; It is characterized in that: the main body of said special fixture is a clamp body; Said clamp body one end forms the butt joint with tooth bar drive piston die casting external appearance matching; And said special fixture has relative tooth bar drive piston die casting symmetry and two paws establishing, and said paw is arranged in the butt joint through pivot pin, and outer support pin is spirally connected from the symmetrical centre of two paws and is arranged in the butt joint; Said outer support pin has the pin cap of band tapering, and the pin cap contacts with the pawl tail of two paws.
2. the special fixture of a kind of tooth bar drive piston die casting according to claim 1; It is characterized in that: said outer support is sold when spiral withdraws from from butt joint; The pawl head of said two paws around pivot pin rotate and each other near; When said outer support pin spiral goed deep into butt joint, the pawl head of said two paws rotated and is separated from each other around pivot pin.
3. the special fixture of a kind of tooth bar drive piston die casting according to claim 1 is characterized in that: the outside of the relative clamp body of said pivot pin is provided with stop screw, and said stop screw is fixedly attached in butt joint.
4. the special fixture of a kind of tooth bar drive piston die casting according to claim 3 is characterized in that: said stop screw is interior hexangle type screw without nut.
5. the special fixture of a kind of tooth bar drive piston die casting according to claim 1 is characterized in that: said butt joint is provided with the teeth groove with the corresponding coupling of tooth bar drive piston die casting toothing.
6. the special fixture of a kind of tooth bar drive piston die casting according to claim 1 is characterized in that: the pin cap of said 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 true CN102554644A (en) | 2012-07-11 |
| CN102554644B 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) |
Cited By (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 |
| CN113732765A (en) * | 2021-07-26 | 2021-12-03 | 苏州工业职业技术学院 | Nut machining clamp |
Citations (7)
| 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 |
| US20020029668A1 (en) * | 2000-07-22 | 2002-03-14 | Rohm Gmbh | Lathe steady rest |
| 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 |
| JP2009279698A (en) * | 2008-05-21 | 2009-12-03 | Ckd Corp | Clamp 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 (7)
| 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 |
| US20020029668A1 (en) * | 2000-07-22 | 2002-03-14 | Rohm Gmbh | Lathe steady rest |
| CN2829948Y (en) * | 2005-10-25 | 2006-10-25 | 陈相周 | Automatic chucking device of lathe chuck |
| JP2009279698A (en) * | 2008-05-21 | 2009-12-03 | Ckd Corp | Clamp device |
| CN101337328A (en) * | 2008-08-07 | 2009-01-07 | 郭文龙 | Intelligent clamping device of numerically controlled machine tool |
| 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 |
Cited By (3)
| 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 |
| CN113732765A (en) * | 2021-07-26 | 2021-12-03 | 苏州工业职业技术学院 | Nut machining clamp |
| CN113732765B (en) * | 2021-07-26 | 2024-05-03 | 苏州工业职业技术学院 | Nut adds clamping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102554644B (en) | 2014-12-24 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20201223 |