CN203738411U - Fixture for precision boring of bores in big ends of connecting rods - Google Patents
Fixture for precision boring of bores in big ends of connecting rods Download PDFInfo
- Publication number
- CN203738411U CN203738411U CN201320886925.1U CN201320886925U CN203738411U CN 203738411 U CN203738411 U CN 203738411U CN 201320886925 U CN201320886925 U CN 201320886925U CN 203738411 U CN203738411 U CN 203738411U
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- CN
- China
- Prior art keywords
- connecting rod
- fixture
- face plate
- fixed
- clamp face
- 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
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- Drilling And Boring (AREA)
Abstract
The utility model relates to a fixture, in particular to a fixture for precision boring of bores in big ends of connecting rods. The fixture comprises a fixture panel and a clamping device. A bearing block is fixed to one side of the fixture panel; a connecting rod big end limit post is fixed on one side, far away from the fixture panel, of the bearing block; a connecting rod small end limit post is fixed at the position close to the connecting rod big end limit post; the clamping device penetrates the fixture panel and the bearing block and crosses the connecting rod big end limit post. The fixture according to the technical scheme has the advantage that reliability and stability of the fixture in clamping workpieces is guaranteed.
Description
Technical field
The utility model relates to a kind of fixture, specifically a kind of crank pin end pore fixture for fine boring.
Background technology
At present, big end conventionally will carry out meticulous bore hole after punching, higher to the process equipment requirement that bore hole is required, especially fixture.Fixture for fine boring need meet high reliability and stability, guarantees that crank pin end pore can not occur when right boring that workpiece error is excessive, precision is not enough because workpiece skew causes, the situation that even workpiece is scrapped.The utility model is for avoiding above-mentioned situation to design.
Summary of the invention
For above-mentioned technical problem, the utility model provides the big end fixture for fine boring that a kind of reliability and stability are high.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of crank pin end pore fixture for fine boring, comprise clamp face plate and clamping device, described clamp face plate one side is fixedly installed rest pad, rest pad is fixedly installed big end limited post away from a side of clamp face plate, position near big end limited post below is fixedly installed small end of connecting rod limited post, run through clamp face plate and rest pad, and cross big end limited post and be provided with clamping device, clamping device is by fixed bar, fixed block, screw rod and connecting rod grip block form, fixed bar one end is fixed on fixed block, the other end passes and is fixed together with connecting rod grip block from clamp face plate opposite side and rest pad, and on this fixed bar other end, between connecting rod grip block and rest pad, be provided with spring, fixed block middle part is provided with tapped through hole, clamp face plate opposite side is provided with screw limiting piece to position that should tapped through hole, screw rod is through tapped through hole fastening screw limited block.
Further, described fixed bar is provided with two, and two these fixed bar one end are fixedly installed on fixed block two ends, the other end is fixedly installed on connecting rod grip block two ends.
Further, described big end limited post, rest pad and clamp face plate are provided with the locating hole that runs through three, to being provided with backstay by locating hole.
Further, described connecting rod grip block top is provided with circular-arc groove.
Good effect of the present utility model is:
Crank pin end pore fixture for fine boring of the present utility model carrys out holding workpiece by described clamping device, wherein, clamping device coordinates clamping or unclamps workpiece and realize holding workpiece by turning screw rod control link grip block with big end limited post and small end of connecting rod limited post, reliability and stability are high.
Accompanying drawing explanation
Fig. 1 is the left view of the utility model crank pin end pore fixture for fine boring;
Fig. 2 is the front view of the utility model crank pin end pore fixture for fine boring;
Fig. 3 is the rearview of the utility model crank pin end pore fixture for fine boring;
Fig. 4 is positional lever structure schematic diagram described in the utility model crank pin end pore fixture for fine boring;
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4,1 is spring, and 2 is big end limited post, 3 is rest pad, and 4 is clamp face plate, and 5 is locating hole, 6 is screw limiting piece, 7 is fixed block, and 8 is fixed bar, and 9 is small end of connecting rod limited post, 10 is connecting rod grip block, 11 is circular-arc groove, and 12 is screw rod, and 13 is backstay.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, a kind of crank pin end pore fixture for fine boring, comprise clamp face plate 4 and clamping device, in described clamp face plate 4 one sides, be fixedly installed rest pad 3, rest pad 3 is fixedly installed big end limited post 2 away from a middle side part of clamp face plate 4, position near big end limited post 2 belows is fixedly installed small end of connecting rod limited post 9, run through clamp face plate 4 and rest pad 3, and cross big end limited post 2 and be provided with clamping device, clamping device is by fixed bar 8, fixed block 7, screw rod 12 and connecting rod grip block 10 form, fixed bar 8 one end are fixed on fixed block 7, the other end passes and is fixed together with connecting rod grip block 10 from clamp face plate 4 opposite sides and rest pad 3, and on these fixed bar 7 other ends, between connecting rod grip block 10 and rest pad 3, be provided with spring 1, fixed block 7 middle parts are provided with tapped through hole, clamp face plate 4 opposite sides are provided with screw limiting piece 6 to position that should tapped through hole, screw rod 12 is through tapped through hole fastening screw limited block 6.
In the present embodiment, fixed bar 8 is provided with two, and two these fixed bar 8 one end are fixedly installed on fixed block 7 two ends, the other end is fixedly installed on connecting rod grip block 10 two ends; Big end limited post 2, rest pad 3 and clamp face plate 4 are provided with the locating hole 5 that runs through three, to being provided with backstay 13 by locating hole 5; Connecting rod grip block 10 tops are provided with circular-arc groove 11, and the diameter of this circular-arc groove 11 is less than the external diameter of big end, is greater than the external diameter of boring cutter handle.
Operation principle:
Before processing, first big end is placed on big end limited post 2, backstay 13 enters the position that limits big end in crank pin end pore through locating hole 5; Again small end of connecting rod is leaned against to the position that limits small end of connecting rod on small end of connecting rod limited post 9; Then by spanner, to tightening direction, turn screw rod 12, due to screw rod 12 with screw limiting piece 6 in holding out against state, again tightening screw rod 12 generation reaction forces makes the reverse displacement of fixed block 7 and pulls fixed bar 8 to move, and then drivening rod grip block 10 is close to connecting rod, finally clamping connecting rod can carry out right boring to crank pin end pore.
After machining, first by spanner, to rotational direction, turn screw rod 12, the elastic force that fixed block 7 and connecting rod grip block 10 spring 1 by being arranged on fixed bar 7 other ends, between connecting rod grip block 10 and rest pad 3 produces is taken back the position before processing; Then take off the connecting rod machining.
The technical solution adopted in the utility model has guaranteed the reliability and stability of crank pin end pore fixture for fine boring holding workpiece.
Above-described embodiment of the present utility model is to be only explanation the utility model example, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes.Here cannot give all embodiments exhaustive.Every still row in protection domain of the present utility model of apparent variation that the technical solution of the utility model amplifies out or change that belong to.
Claims (4)
1. a crank pin end pore fixture for fine boring, it is characterized in that: comprise clamp face plate (4) and clamping device, described clamp face plate (4) one sides are fixedly installed rest pad (3), rest pad (3) is fixedly installed big end limited post (2) away from a side of clamp face plate (4), position near big end limited post (2) below is fixedly installed small end of connecting rod limited post (9), run through clamp face plate (4) and rest pad (3), and cross big end limited post (2) and be provided with clamping device, clamping device is by fixed bar (8), fixed block (7), screw rod (12) and connecting rod grip block (10) form, described fixed bar (8) one end is fixed on fixed block (7), the other end passes and is fixed together with connecting rod grip block (10) from clamp face plate (4) opposite side and rest pad (3), and on this fixed bar (8), between connecting rod grip block (10) and rest pad (3), be provided with spring (1), described fixed block (7) middle part is provided with tapped through hole, described clamp face plate (4) opposite side is provided with screw limiting piece (6) to position that should tapped through hole, screw rod (12) is through tapped through hole fastening screw limited block (6).
2. crank pin end pore fixture for fine boring according to claim 1, it is characterized in that: described fixed bar (8) is provided with two, two these fixed bars (8) one end is fixedly installed on fixed block (7) two ends, the other end is fixedly installed on connecting rod grip block (10) two ends.
3. crank pin end pore fixture for fine boring according to claim 1, it is characterized in that: described big end limited post (2), rest pad (3) and clamp face plate (4) are provided with the locating hole (5) that runs through three, to being provided with backstay (13) by locating hole (5).
4. crank pin end pore fixture for fine boring according to claim 1, is characterized in that: described connecting rod grip block (10) top is provided with circular-arc groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886925.1U CN203738411U (en) | 2013-12-31 | 2013-12-31 | Fixture for precision boring of bores in big ends of connecting rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886925.1U CN203738411U (en) | 2013-12-31 | 2013-12-31 | Fixture for precision boring of bores in big ends of connecting rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203738411U true CN203738411U (en) | 2014-07-30 |
Family
ID=51338274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886925.1U Expired - Fee Related CN203738411U (en) | 2013-12-31 | 2013-12-31 | Fixture for precision boring of bores in big ends of connecting rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203738411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817932A (en) * | 2016-05-03 | 2016-08-03 | 常州远东连杆集团有限公司 | Adjustable type connecting rod big end outer circle pneumatic mold-turning clamp |
| CN111740346A (en) * | 2020-07-21 | 2020-10-02 | 中国南方电网有限责任公司超高压输电公司柳州局 | Single-end hand-operated tightening assembly fixture |
| CN114932428A (en) * | 2022-05-20 | 2022-08-23 | 重庆九方铸造有限责任公司 | Connecting rod big-end hole fine boring fixture and using method thereof |
-
2013
- 2013-12-31 CN CN201320886925.1U patent/CN203738411U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817932A (en) * | 2016-05-03 | 2016-08-03 | 常州远东连杆集团有限公司 | Adjustable type connecting rod big end outer circle pneumatic mold-turning clamp |
| CN111740346A (en) * | 2020-07-21 | 2020-10-02 | 中国南方电网有限责任公司超高压输电公司柳州局 | Single-end hand-operated tightening assembly fixture |
| CN114932428A (en) * | 2022-05-20 | 2022-08-23 | 重庆九方铸造有限责任公司 | Connecting rod big-end hole fine boring fixture and using method thereof |
| CN114932428B (en) * | 2022-05-20 | 2023-05-12 | 重庆九方铸造有限责任公司 | Connecting rod big end hole fine boring clamp and use method thereof |
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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 |
Granted publication date: 20140730 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |