CN103495886B - Connecting rod fixture for fine boring - Google Patents
Connecting rod fixture for fine boring Download PDFInfo
- Publication number
- CN103495886B CN103495886B CN201310453744.4A CN201310453744A CN103495886B CN 103495886 B CN103495886 B CN 103495886B CN 201310453744 A CN201310453744 A CN 201310453744A CN 103495886 B CN103495886 B CN 103495886B
- Authority
- CN
- China
- Prior art keywords
- conehead
- plate portion
- support plate
- guide
- connecting rod
- Prior art date
- 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
Links
- 241001149930 Protura <class> Species 0.000 claims abstract description 37
- 238000003825 pressing Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of connecting rod fixture for fine boring, relate to machining process equipment manufacturing technology field, including the clamp body being provided with support plate portion, support plate portion is provided with major part positioner and positioning core axle, it is provided with hold down gag at nearly major part positioner, positioning core axle is respectively provided on two sides with conehead supporting arrangement and v-shaped bearing device up and down, conehead supporting arrangement includes the attachment strap being located at upper end, support plate portion and the guide being provided with spacing hole being installed on attachment strap, guide is sequentially connected with from top to down and is provided with the housing screw that its guide upper surface is stretched out on top and the conehead fulcrum post abutted against with housing screw, conehead fulcrum post is contained on the spacing hole of guide by the first Spring Card, the lower surface of its guide is stretched out in the bottom of conehead fulcrum post.Compared with prior art, connecting rod fixture for fine boring of the present invention, housing screw drives conehead fulcrum post to move up and down, and eliminates in the power of the produced trace of tangential direction of housing screw and Screw Thread Fit Clearance impact accurate on clamping position.
Description
Technical field
The present invention relates to machining process equipment manufacturing technology field, a kind of boring jig carrying out right boring for head bore large and small to connecting rod.
Background technology
Right boring connecting rod large and small head bore operation is one of critical process of processing connecting rod, is to determine whether the dimensional accuracy of the large and small head bore of connecting rod and positional precision reach the guarantee that design requires；Generally when head bore large and small to connecting rod carries out right boring, must use a kind of fixture that connecting rod is carried out positioning clamping.Existing a kind of connecting rod fixture for fine boring, this connecting rod fixture for fine boring includes being provided with seat board portion and the clamp body in the support plate portion with the link of this seat board portion, described support plate portion is fixed with major part positioner and is movably equipped with positioning core axle, described support plate portion is provided with hold down gag at nearly described major part positioner, is respectively equipped with conehead supporting arrangement and v-shaped bearing device above and below described positioning core axle；Described conehead supporting arrangement includes being positioned at the attachment strap above described positioning core axle, is coated with housing screw by screw thread on described attachment strap, and the lower end of described housing screw is provided with one section of cone.In use there is following deficiency in this connecting rod fixture for fine boring: when 1, small end of connecting rod portion being carried out auxiliary clamp, tighten housing screw and can produce the power of a trace in the tangential direction of housing screw, small end of connecting rod portion is made to produce the elastic deformation of trace, completing bore hole and unload deformation resilience after lower link, the precision of processing will decrease；2, it is threaded connection with attachment strap due to housing screw, internal and external threads coordinates and there is certain gap, affecting the accurate of connecting rod location and processing, especially affect big on the depth of parallelism between connecting rod size head bore, between connecting rod size head bore, parallelism precision qualification rate is 75%.
Summary of the invention
The technical problem to be solved is to provide one and prevents small end of connecting rod portion from producing trace elastic deformation, accurate positioning, the connecting rod fixture for fine boring that Boring preciseness is high.
nullIn order to solve the problems referred to above，The technical solution used in the present invention is: this connecting rod fixture for fine boring，Including the clamp body being provided with support plate portion，Described support plate portion is fixed with major part positioner and is movably equipped with positioning core axle，Described support plate portion is provided with hold down gag at nearly described major part positioner，Conehead supporting arrangement and v-shaped bearing device it is respectively provided on two sides with up and down at described positioning core axle，Described conehead supporting arrangement includes the attachment strap being located at upper end, described support plate portion and the guide being provided with spacing hole being installed on described attachment strap，Described guide is sequentially connected with from top to down and is provided with the housing screw that its guide upper surface is stretched out on top and the conehead fulcrum post abutted against with described housing screw，Described conehead fulcrum post is contained on the spacing hole of described guide by being sleeved on the first Spring Card thereon，The lower surface of its guide is stretched out in the bottom of described conehead fulcrum post.
In above-mentioned connecting rod fixture for fine boring technical scheme, more specifically technical scheme is it may also is that described major part positioner includes major part supporting and the positioning support with the supporting lower end cut-grafting of described major part, is provided with side and determines block on described positioning support.
Further, described hold down gag includes the pressing plate being connected by push rod and bearing pin with described support plate portion, and the upper end of described pressing plate is provided with the groove of U-shaped, is provided with pressure ring in described groove, and described pressure ring is positioned at described side and determines the top of block；Being provided with at the middle part of described pressing plate and installed its sidewall and the pull bar in described support plate portion, described pull bar is set with the second spring on one section of body of rod between described pressing plate and described support plate portion；Described pull bar stretches out the one end in described support plate portion equipped with threaded block and the nut that is sleeved on described threaded block, and the side of described nut is provided with stop nut, equipped with handle on described nut.
Further, described v-shaped bearing device includes the V-block pin that upper articulation has V-block, bottom to be provided with positioning table；Described V-block pin is fixed in described support plate portion by upper bracket, and described V-block pin is set with the 3rd spring on one section of shank between its positioning table and described upper bracket；Being provided with the lower conehead fulcrum post abutted against with the lower surface of described positioning table below described V-block pin, described lower conehead fulcrum post is connected with lower supporting frame by screw thread, and described lower supporting frame is fixed in described support plate portion.
Owing to have employed technique scheme, the present invention compared with prior art has the advantages that
1, upper end, support plate portion is provided with attachment strap and the guide being provided with spacing hole being installed on attachment strap, guide is sequentially connected with from top to down and is provided with housing screw and conehead fulcrum post, conehead fulcrum post is contained on the spacing hole of guide by being sleeved on the first Spring Card thereon, and the lower surface of its guide is stretched out in the bottom of conehead fulcrum post.Rotating housing screw drives conehead fulcrum post to move down compression small end of connecting rod, during housing screw convolution, make conehead fulcrum post return under the action of the spring, upper and lower linear motion only made by conehead fulcrum post, eliminates in the power of the produced trace of tangential direction of housing screw and Screw Thread Fit Clearance impact accurate on clamping position.
2, between connecting rod size head bore, parallelism precision qualification rate reaches more than 90%, improves about 15%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the connecting rod of the embodiment of the present invention.
Fig. 2 is the structural representation of the embodiment of the present invention.
Fig. 3 is the sectional view at the A A of Fig. 2.
Fig. 4 is the sectional view at the B B of Fig. 2.
Detailed description of the invention
The invention will be further described for embodiment below in conjunction with the accompanying drawings:
Being illustrated in figure 1 the present embodiment and need the connecting rod of clamping position, the big end hole 29 of connecting rod and little head bore 28 i.e. need to carry out the hole of right boring.
nullSuch as Fig. 2、Fig. 3、A kind of connecting rod fixture for fine boring shown in Fig. 4，Including the clamp body 1 with support plate portion，In support plate portion fixing equipped with major part positioner and movable equipped with positioning core axle 11，Positioning core axle 11 is installed in support plate portion by location guide pin bushing 10，Support plate portion at nearly major part positioner equipped with hold down gag，It is respectively provided with conehead supporting arrangement and v-shaped bearing device in positioning core axle about 11 both sides，Conehead supporting arrangement includes the attachment strap 6 being contained in upper end, support plate portion and the guide 8 with spacing hole being installed on attachment strap 6，Guide 8 is sequentially connected with the housing screw 7 stretching out its guide 8 upper surface equipped with top and the conehead fulcrum post 9 abutted against with housing screw 7 from top to down，Conehead fulcrum post 9 is installed on the spacing hole of guide 8 by being sleeved on the first spring 27 thereon，The lower surface of its guide 8 is stretched out in the bottom of conehead fulcrum post 9；Major part positioner includes the major part being fixed by bolts in support plate portion supporting 5 and supports the positioning support 2 of 5 lower end cut-graftings with major part, and determining block 25 equipped with side on positioning support 2, positioning support 2 is fixed by bolts in support plate portion.
Hold down gag includes the pressing plate 3 being connected by push rod 19 and bearing pin 20 with support plate portion, pressing plate 3 is hinged with push rod 19 by bearing pin 20, and push rod 19 through support plate portion and is fixed by nut, and the upper end of pressing plate 3 has the groove of U-shaped, at groove built with pressure ring 4, pressure ring 4 is positioned at side and determines the top of block 25；At the middle part of pressing plate 3 equipped with installing the pull bar 18 in its sidewall and support plate portion, pull bar 18 is set with the second spring 26 on one section of body of rod between pressing plate 3 and support plate portion；Pull bar 18 stretches out the one end in support plate portion equipped with threaded block 23 and the nut 22 that is sleeved on threaded block 23, and the side of nut 22 is equipped with cushion block and two stop nuts 21, equipped with handle 24 on nut 22.
V-shaped bearing device includes that upper articulation has V-block 12, and bottom has the V-block pin 13 of positioning table；V-block pin 13 is fixed in support plate portion by upper bracket 14, the side of V-block pin 13 has one section of groove vertically, the position corresponding with the groove of V-block pin 13 at upper bracket 14 is threaded hole, equipped with the screw stretched in groove in screwed hole, V-block pin 13 is set with the 3rd spring 15 on one section of shank between its positioning table and upper bracket 14；Equipped with the lower conehead fulcrum post 16 abutted against with the lower surface of its positioning table below V-block pin 13, lower conehead fulcrum post 16 is connected with lower supporting frame 17 by screw thread, and lower supporting frame 17 is fixed in support plate portion.
During work, connecting rod small end hole 28 is enclosed within location mandril 11, the side of big end is placed on side and determines on block 25, end face is adjacent to major part supporting 5, pulling handle 24 makes nut 22 move towards stop nut 21 direction, drive pull bar 18 orthokinetic, pull pressing plate 3 and pressure ring 4 to compress the end face of big end by pull bar 18；Under rotating, conehead fulcrum post 16 is by V-block pin 13 upwards jack-up, makes V-block 12 hold out against the lower end of small end of connecting rod by V-block pin 13；Rotating housing screw 7 promotes conehead fulcrum post 9 to move down, and compresses the upper end of small end of connecting rod, exits location mandril 11, gets final product right boring connecting rod small end hole 28 and big end hole 29 simultaneously.
Claims (4)
- null1. a connecting rod fixture for fine boring，Including the clamp body (1) being provided with support plate portion，Described support plate portion is fixed with major part positioner and is movably equipped with positioning core axle (11)，Described support plate portion is provided with hold down gag at nearly described major part positioner，Conehead supporting arrangement and v-shaped bearing device it is respectively provided on two sides with up and down at described positioning core axle (11)，It is characterized in that: attachment strap (6) that described conehead supporting arrangement includes being located at upper end, described support plate portion and the guide (8) being provided with spacing hole being installed on described attachment strap (6)，Described guide (8) is sequentially connected with from top to down and is provided with the housing screw (7) that its guide (8) upper surface is stretched out on top and the conehead fulcrum post (9) abutted against with described housing screw (7)，Described conehead fulcrum post (9) is installed on the spacing hole of described guide (8) by being sleeved on the first spring (27) thereon，The lower surface of its guide (8) is stretched out in the bottom of described conehead fulcrum post (9).
- Connecting rod fixture for fine boring the most according to claim 1, it is characterized in that: described major part positioner includes major part supporting (5) and the positioning support (2) with supporting (5) the lower end cut-grafting of described major part, is provided with side and determines block (25) on described positioning support (2).
- Connecting rod fixture for fine boring the most according to claim 2, it is characterized in that: described hold down gag includes the pressing plate (3) being connected by push rod (19) and bearing pin (20) with described support plate portion, the upper end of described pressing plate (3) is provided with the groove of U-shaped, being provided with pressure ring (4) in described groove, described pressure ring (4) is positioned at described side and determines the top of block (25)；Be provided with the pull bar (18) installing its sidewall and described support plate portion at the middle part of described pressing plate (3), described pull bar (18) is set with the second spring (26) on one section of body of rod between described pressing plate (3) and described support plate portion；Described pull bar (18) stretches out the one end in described support plate portion equipped with threaded block (23) and the nut (22) that is sleeved on described threaded block (23), the side of described nut (22) is provided with stop nut (21), equipped with handle (24) on described nut (22).
- Connecting rod fixture for fine boring the most according to claim 3, it is characterised in that: described v-shaped bearing device includes that upper articulation has V-block (12), and bottom is provided with the V-block pin (13) of positioning table；Described V-block pin (13) is fixed in described support plate portion by upper bracket (14), and described V-block pin (13) is set with the 3rd spring (15) on one section of shank between its positioning table and described upper bracket (14)；It is provided with the lower conehead fulcrum post (16) abutted against with the lower surface of described positioning table in described V-block pin (13) lower section, described lower conehead fulcrum post (16) is connected with lower supporting frame (17) by screw thread, and described lower supporting frame (17) is fixed in described support plate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453744.4A CN103495886B (en) | 2013-09-29 | 2013-09-29 | Connecting rod fixture for fine boring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453744.4A CN103495886B (en) | 2013-09-29 | 2013-09-29 | Connecting rod fixture for fine boring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103495886A CN103495886A (en) | 2014-01-08 |
| CN103495886B true CN103495886B (en) | 2016-09-14 |
Family
ID=49861194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310453744.4A Expired - Fee Related CN103495886B (en) | 2013-09-29 | 2013-09-29 | Connecting rod fixture for fine boring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103495886B (en) |
Cited By (1)
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| CN110064948A (en) * | 2019-05-30 | 2019-07-30 | 霍山嘉远智能制造有限公司 | A kind of milling fixture with cylinder finger setting |
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| DE3446012A1 (en) * | 1983-12-22 | 1985-07-04 | Jan Vantaa Siwik | Device for machining a connecting-rod blank |
| CN201799892U (en) * | 2010-09-30 | 2011-04-20 | 芜湖航天汽车连杆有限公司 | Tooling clamp for finish turning connecting-rod small end |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110064948A (en) * | 2019-05-30 | 2019-07-30 | 霍山嘉远智能制造有限公司 | A kind of milling fixture with cylinder finger setting |
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| Publication number | Publication date |
|---|---|
| CN103495886A (en) | 2014-01-08 |
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