CN201309084Y - Bidirectional positioning and clamping device of cylinder body inner hole - Google Patents
Bidirectional positioning and clamping device of cylinder body inner hole Download PDFInfo
- Publication number
- CN201309084Y CN201309084Y CNU2008201240464U CN200820124046U CN201309084Y CN 201309084 Y CN201309084 Y CN 201309084Y CN U2008201240464 U CNU2008201240464 U CN U2008201240464U CN 200820124046 U CN200820124046 U CN 200820124046U CN 201309084 Y CN201309084 Y CN 201309084Y
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- China
- Prior art keywords
- clamp body
- clamping device
- cylinder block
- drift
- positioning clamping
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- Expired - Lifetime
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Abstract
The utility model relates to a bidirectional positioning and clamping device of a cylinder body inner hole, which is characterized by comprising a clamp body with a central hole, a screw rod is arranged in the central hole and rotatably connected to the clamp body by a not-go-end locknut, a lower wedge connected with the screw rod by threads and an upper wedge connected with the lower wedge in a sliding way are arranged on the screw rod, a spring is supported between the two wedges, and a screw rod nut is arranged on the screw rod at the top of the upper wedge; 2-4 wedge-shaped inclined planes are respectively and evenly distributed on the outer cylindrical surfaces of the upper wedge and the lower wedge, and clamping claws which have the same quantity with the wedge-shaped inclined planes and radially and concentrically move are arranged on the outer wall of the clamp body in a perforating way corresponding to the position of the wedge-shaped inclined planes; a rubber seal cover is covered on the upper end surface of the clamp body, and an annular tension spring is respectively arranged on the outer circumferences of all clamp claws at the peripheries of the upper wedge and the lower wedge. The utility model can be widely used in the positioning process of the cylinder body inner hole and can be used in the positioning processes of various cylindrical workpieces.
Description
Technical field
The utility model relates to a kind of clamping device, particularly about the two-way positioning clamping device of a kind of cylinder block endoporus.
Background technology
Cylinder block is the important accessory on the diesel engine of diesel locomotive body at present, and it constitutes the space that gas compresses, burns and expand with cylinder head, piston, and the motion of piston is play the guiding role.Just require the perpendicularity of cylinder block endoporus and cylinder block large end face to want high (being generally less than 0.02mm) from operating position.Analyze from the processing technology of cylinder block, in its " half finish turning large end face " operation, will guarantee the perpendicularity of endoporus and large end face, will be the location benchmark with the large end face in " right boring endoporus " operation thereafter, could guarantee that endoporus is can boring not inclined to one side, and avoid causing and scrap.And for big cylinder block, general endoporus total length reaches 573mm, and the aperture reaches φ 240mm, belong to long trepanning class part, when utilizing endoporus to position the processing large end face, its location centering is just relatively more difficult, and be easy to produce clamping deformation, and clamp operation labour intensity is big, and operating efficiency is also lower.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to propose the two-way positioning clamping device of a kind of cylinder block endoporus, and it can make the self-centering of cylinder block endoporus, also can automatic aligning, make its center line and machine tool chief axis dead in line.
For achieving the above object, the utility model is taked following technical scheme: the two-way positioning clamping device of a kind of cylinder block endoporus, it is characterized in that: it comprises that one has the clamp body of centre bore, one leading screw is arranged in the described centre bore, and be rotatably connected on the described clamp body by a not-go-end locknut, described leading screw is provided with one by connected drift down of screw thread and the connected drift of going up of a slip, support a spring between described two drifts, the described leading screw of going up the drift top is provided with a mother lead screw; Be evenly equipped with 2～4 wedge shape inclined-planes respectively on the external cylindrical surface of described upward drift and following drift, corresponding with the position on described wedge shape inclined-plane, on the outer wall of described clamp body, be equipped with the claw that quantity is identical and radial concentric is moved.
Offer annular groove on the described mother lead screw, a rubber closure that has centre bore is set in the described groove, and is fixed on the upper surface of described clamp body.
All enclose on the excircle of all claws of described upper and lower drift periphery and be provided with an annular extension spring.
Be provided with the claw lining between described claw and the clamp body contact-making surface.
Each described claw outside is respectively arranged with the locking jackscrew.
Described clamp body centre bore is up big and down small stepped hole, and described leading screw has the step axle that can be blocked in described stepped hole junction.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model is owing to be provided with the clamp body of an integral body, upper and lower drift is set in clamp body, substep motion by upper and lower drift, the control claw is protruding, therefore can make upper and lower two cover claws on a central shaft, form two supporting-points, make self-centering of cylinder block workpiece endoporus and clamping.2, clamp body of the present utility model is fixed on the machine chuck, the positioning accuracy height, and the repeated clamping coaxiality error is less than 0.04mm, and good integrity, and rigidity is stronger.3, the utility model has used the principle of 2 definite straight lines, at the clamp body center one leading screw is set, sheathed upper and lower drift on leading screw, concrete central hair thick stick of rotating clamp and mother lead screw, it is upper and lower mobile to form drift, thereby make the radially application of force of upper and lower claw difference, the stretching cylinder block, its structural design is ingenious, and flexible operation is reliable, can be widely used in the position fixing process of cylinder block endoporus, also can be used for the position fixing process of other various cylindrical workpieces.
Description of drawings
Fig. 1 is a user mode schematic diagram of the present utility model
Fig. 2 is that the A-A of Fig. 1 is to view
Leading screw spanner schematic diagram when Fig. 3 is the utility model use
Mother lead screw spanner schematic diagram when Fig. 4 is the utility model use
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises that one is fixed on the clamp body 2 on the machine chuck 1, and clamp body 2 centers have a stepped hole, and the hole of upper end is big, and the hole of lower end is little.One leading screw 3 that has step axle 31 penetrates in the stepped hole from top to bottom, and step axle 31 is blocked by the stepped hole place of clamp body 2.The step axle 31 following positions of leading screw 3 are established by a locknut 4 retainings after passing stepped hole, form the leading screw not-go-end; For preventing the locknut slippage, between locknut and leading screw, an anticreep key 5 is set and is connected.The step axle 31 of leading screw 3 is arranged with upper and lower two drifts that are arranged in clamp body 2 stepped holes with the upper part, and wherein going up drift 6 is to be slidingly connected with leading screw 3, and following drift 7 is to be threaded with leading screw 3, support and connection one spring 8 between last drift 6 and following drift 7.On the leading screw 3 on the last drift 6, revolve and establish a mother lead screw 9, also can between last drift 6 and mother lead screw 9, add a pad 10.For preventing that dust or iron filings from entering in clamp body 2 cavitys, influence its work and centering precision, can offer an annular groove 91 on the mother lead screw 9, a rubber closure 11 is set in annular groove 91, the outer nose circle of seal cover 11 is fastened to the upper surface of clamp body 2 with trip bolt 12.
In the said structure, uniformly on last drift 6 and following drift 7 external cylindrical surfaces be provided with 2～4 wedge shape inclined-planes, be traditionally arranged to be 3.As shown in Figure 2, the above drift 6 of present embodiment is an example, circumferentially offers three wedge shape inclined-planes at last drift 6, and with wedge shape incline position corresponding position, inwardly being inserted with three from the outer wall of clamp body 2 can radially movable claw 13.Be shield jig body 2, between claw 13 and clamp body 2, claw lining 14 can be set.For claw 13 is entad shunk simultaneously, common coil is established an annular extension spring 15 on the exposed junction circumference of all claws 13.The claw setting of following drift 7 is the same with last drift 6.
As shown in Figure 1, for preventing that claw 13 from moving up and down, and back, claw 13 location chucking, radially plugging on one jackscrew 17 on the fore-set 16 and from the outer end of clamp body 2 to the claw 13 of upper end respectively, the claw 13 to the lower end radially plugs fore-set 18 and once jackscrew 19.
When the utility model uses, at first cylinder block to be processed 20 is enclosed within on the clamp body 2, the switching leading screw 3 then, make its direction rotation to the screw thread precession, because leading screw 3 itself can not move up and down, therefore can drive the following drift 7 that is threaded upwards slides, three claws 13 of lower end can flexiblely contact with the wedge shape inclined-plane of following drift 7 and produce friction, and under the squeezing action on wedge shape inclined-plane, radially move simultaneously, realized the opening of claw 13 of lower end, withstand on the inwall of cylinder block 20, make the self-centering of endoporus lower end and the clamping of cylinder block 20, leading screw 3 is also by self-locking simultaneously.Begin precession mother lead screw 9 then, make its extruding downwards go up drift 6, make drift 6 to lower slider, three claws 13 of upper end contact with the wedge shape inclined-plane of last drift 6 and produce friction, and under the squeezing action on wedge shape inclined-plane, radially move simultaneously, opening of claw 13 on having realized withstands on the inwall of cylinder block 20, makes the endoporus upper end self-centering and the clamping of cylinder block 20.
During operation, for ease of leading screw 3 and mother lead screw 9 rotations, can add a leading screw spanner 21 and a mother lead screw spanner 22 (as shown in Figure 3, Figure 4) respectively, the leading screw spanner comprises spanner cover 23, spanner overlaps 23 upper ends one boosting-rod 24 is set, spanner overlaps 23 lower end flange and is provided with two pins 25, during work, pin 25 is snapped onto in the blind hole that is provided with on the mother lead screw 9.Pull the boosting-rod 24 on the leading screw spanner 21, just can drive leading screw and mother lead screw rotates synchronously.Mother lead screw spanner 22 structures and leading screw spanner are similar, also have a spanner cover 26 and boosting-rod 27, do not have flange but spanner overlaps 26 lower ends, during use, spanner cover 26 is enclosed within on the mother lead screw 9, pulls boosting-rod 27, just can only drive the mother lead screw rotation, and leading screw is motionless.
Claims (9)
1, the two-way positioning clamping device of a kind of cylinder block endoporus, it is characterized in that: it comprises that one has the clamp body of centre bore, one leading screw is arranged in the described centre bore, and be rotatably connected on the described clamp body by a not-go-end locknut, described leading screw is provided with one by connected drift down of screw thread and the connected drift of going up of a slip, support a spring between described two drifts, the described leading screw of going up the drift top is provided with a mother lead screw; Be evenly equipped with 2～4 wedge shape inclined-planes respectively on the external cylindrical surface of described upward drift and following drift, corresponding with the position on described wedge shape inclined-plane, on the outer wall of described clamp body, be equipped with the claw that quantity is identical and radial concentric is moved.
2, the two-way positioning clamping device of a kind of cylinder block endoporus as claimed in claim 1, it is characterized in that: offer annular groove on the described mother lead screw, a rubber closure that has centre bore is set in the described groove, and is fixed on the upper surface of described clamp body.
3, the two-way positioning clamping device of a kind of cylinder block endoporus as claimed in claim 1 is characterized in that: all enclose on the excircle of all claws of described upper and lower drift periphery and be provided with an annular extension spring.
4, the two-way positioning clamping device of a kind of cylinder block endoporus as claimed in claim 2 is characterized in that: all enclose on the excircle of all claws of described upper and lower drift periphery and be provided with an annular extension spring.
5, as claim 1 or the two-way positioning clamping device of 2 or 3 or 4 described a kind of cylinder block endoporus, it is characterized in that: be provided with the claw lining between described claw and the clamp body contact-making surface.
6, as claim 1 or the two-way positioning clamping device of 2 or 3 or 4 described a kind of cylinder block endoporus, it is characterized in that: each described claw outside is respectively arranged with the locking jackscrew.
7, the two-way positioning clamping device of a kind of cylinder block endoporus as claimed in claim 5 is characterized in that: each described claw outside is respectively arranged with the locking jackscrew.
8, as claim 1 or the two-way positioning clamping device of 2 or 3 or 4 or 7 described a kind of cylinder block endoporus, it is characterized in that: described clamp body centre bore is up big and down small stepped hole, and described leading screw has the step axle that can be blocked in described stepped hole junction.
9, the two-way positioning clamping device of a kind of cylinder block endoporus as claimed in claim 5, it is characterized in that: described clamp body centre bore is up big and down small stepped hole, described leading screw has the step axle that can be blocked in described stepped hole junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201240464U CN201309084Y (en) | 2008-12-01 | 2008-12-01 | Bidirectional positioning and clamping device of cylinder body inner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201240464U CN201309084Y (en) | 2008-12-01 | 2008-12-01 | Bidirectional positioning and clamping device of cylinder body inner hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201309084Y true CN201309084Y (en) | 2009-09-16 |
Family
ID=41106336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201240464U Expired - Lifetime CN201309084Y (en) | 2008-12-01 | 2008-12-01 | Bidirectional positioning and clamping device of cylinder body inner hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201309084Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966657A (en) * | 2010-10-29 | 2011-02-09 | 福昌精密制品（深圳）有限公司 | Positioning clamping device for miller processed thin-wall can type parts |
| CN103990980A (en) * | 2014-05-15 | 2014-08-20 | 鹰普（中国）有限公司 | Self-centering clamping tool |
| CN104589087A (en) * | 2014-12-11 | 2015-05-06 | 重庆环际低碳节能技术开发有限公司 | Large-size workpiece interior centering clamping mechanism |
| CN104907856A (en) * | 2015-06-15 | 2015-09-16 | 鹰普（中国）有限公司 | Double-self-centering peripheral float clamping mechanism |
| CN105081900A (en) * | 2015-09-04 | 2015-11-25 | 武汉新芯集成电路制造有限公司 | Dress locating device of cutting blade and mounting method of dress locating device |
| CN105583657A (en) * | 2016-01-29 | 2016-05-18 | 一拖(洛阳)开创装备科技有限公司 | Manual inner expansion type gap removing and positioning device |
| CN106002345A (en) * | 2016-05-13 | 2016-10-12 | 安庆中船动力配套有限公司 | Automatic centering clamp for finely boring inner hole of cylinder sleeve |
| CN108015578A (en) * | 2017-12-28 | 2018-05-11 | 广西玉柴机器股份有限公司 | A kind of positioner for holding cylinder block bottom surface level with both hands |
| CN108890359A (en) * | 2018-08-06 | 2018-11-27 | 安徽信息工程学院 | A kind of pneumatic lathe fork clamp for machining |
| CN110270532A (en) * | 2019-07-09 | 2019-09-24 | 张耕乾 | A kind of clamping device of novel separated type ball bearing cleaning plant |
| CN111032280A (en) * | 2018-08-09 | 2020-04-17 | 深圳市大富科技股份有限公司 | Supporting device |
| CN111215852A (en) * | 2020-01-22 | 2020-06-02 | 武汉船用机械有限责任公司 | Machining method for cylinder body of double-piston oil cylinder |
| CN112453821A (en) * | 2021-01-26 | 2021-03-09 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN115041982A (en) * | 2022-07-12 | 2022-09-13 | 成都永峰科技有限公司 | Automatic clamping fixture |
-
2008
- 2008-12-01 CN CNU2008201240464U patent/CN201309084Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966657A (en) * | 2010-10-29 | 2011-02-09 | 福昌精密制品（深圳）有限公司 | Positioning clamping device for miller processed thin-wall can type parts |
| CN103990980A (en) * | 2014-05-15 | 2014-08-20 | 鹰普（中国）有限公司 | Self-centering clamping tool |
| CN103990980B (en) * | 2014-05-15 | 2016-04-13 | 鹰普（中国）有限公司 | A kind of self-centering clamping frock |
| CN104589087A (en) * | 2014-12-11 | 2015-05-06 | 重庆环际低碳节能技术开发有限公司 | Large-size workpiece interior centering clamping mechanism |
| CN104907856A (en) * | 2015-06-15 | 2015-09-16 | 鹰普（中国）有限公司 | Double-self-centering peripheral float clamping mechanism |
| CN105081900A (en) * | 2015-09-04 | 2015-11-25 | 武汉新芯集成电路制造有限公司 | Dress locating device of cutting blade and mounting method of dress locating device |
| CN105583657A (en) * | 2016-01-29 | 2016-05-18 | 一拖(洛阳)开创装备科技有限公司 | Manual inner expansion type gap removing and positioning device |
| CN106002345A (en) * | 2016-05-13 | 2016-10-12 | 安庆中船动力配套有限公司 | Automatic centering clamp for finely boring inner hole of cylinder sleeve |
| CN108015578A (en) * | 2017-12-28 | 2018-05-11 | 广西玉柴机器股份有限公司 | A kind of positioner for holding cylinder block bottom surface level with both hands |
| CN108890359A (en) * | 2018-08-06 | 2018-11-27 | 安徽信息工程学院 | A kind of pneumatic lathe fork clamp for machining |
| CN111032280A (en) * | 2018-08-09 | 2020-04-17 | 深圳市大富科技股份有限公司 | Supporting device |
| CN110270532A (en) * | 2019-07-09 | 2019-09-24 | 张耕乾 | A kind of clamping device of novel separated type ball bearing cleaning plant |
| CN111215852A (en) * | 2020-01-22 | 2020-06-02 | 武汉船用机械有限责任公司 | Machining method for cylinder body of double-piston oil cylinder |
| CN112453821A (en) * | 2021-01-26 | 2021-03-09 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN112453821B (en) * | 2021-01-26 | 2021-04-16 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN115041982A (en) * | 2022-07-12 | 2022-09-13 | 成都永峰科技有限公司 | Automatic clamping fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |