CN107627153B - End face gas detection device for positioning and clamping camshaft - Google Patents
End face gas detection device for positioning and clamping camshaft Download PDFInfo
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- CN107627153B CN107627153B CN201711008659.1A CN201711008659A CN107627153B CN 107627153 B CN107627153 B CN 107627153B CN 201711008659 A CN201711008659 A CN 201711008659A CN 107627153 B CN107627153 B CN 107627153B
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- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of machining, in particular to an end face air detection device for positioning and clamping a camshaft, which comprises a center mounting component, a center and a positioning block for axially positioning the camshaft, wherein the positioning block is fixed at one end of the center mounting component, an air detection point is arranged on the end face of the positioning block, facing the camshaft, of the positioning block, a cavity for supplying air to the air detection point is arranged in the center mounting component, the center is elastically arranged in the cavity of the center mounting component, and the end part of the center is outwards extended through the center of the positioning block. The end face of the cam shaft can be positioned and clamped before the cam shaft is machined, radial positioning of the cam shaft is achieved, and whether the end face of the cam shaft is clamped or not is detected through an air detection point.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an end face gas detection device for positioning and clamping a cam shaft.
Background
The main body of the cam shaft is a cylindrical rod body, the structure is slender and easy to deform, the processing difficulty is high, and the requirements on the size, shape and mutual position accuracy of complex surfaces such as a cam, an eccentric wheel and the like are high. The general conventional method for selecting the positioning reference adopts two apexes as the positioning reference of shaft parts, and in order to ensure the dimensional accuracy of the camshaft journals, the coaxiality between the journals, the dimensional and position accuracy of key grooves, the perpendicularity of a thrust surface relative to the axis of a bearing journal and other technical requirements, one end surface of the camshaft needs to be selected as the positioning reference surface, a flexible and adjustable apex structure is arranged, and the other end apex is used as a main clamp. In order to ensure the accurate position of the cam shaft in the machining process, whether the cam shaft is clamped or not needs to be detected.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an end face air detection device for positioning and clamping a cam shaft, which can detect whether the cam shaft is clamped or not.
The technical scheme of the invention is as follows: the utility model provides a camshaft location presss from both sides tight with terminal surface gas detection device, includes top installation component, top and is used for carrying out axial positioning's locating piece to the camshaft, the locating piece is fixed in the one end of top installation component, be equipped with gas detection point on the terminal surface of locating piece towards the camshaft, be equipped with the cavity that is used for to gas detection point air feed in the top installation component, top elastic setup is in the cavity of top installation component, and its tip outwards stretches out through the center of locating piece.
Further, the rotary table is further comprised, one end of the center mounting component is fixedly connected with the end face of the rotary table, the other end of the center mounting component is fixedly connected with the positioning block, a distribution shaft is arranged in the rotary table in a penetrating mode, one end of the distribution shaft is connected with a rotary quick-change connector for air supply, the other end of the distribution shaft is elastically connected with the end portion of the center through an elastic component, an air inlet channel is arranged in the distribution shaft, and the air inlet channel is communicated with the cavity.
Further, an annular stepped surface for limiting the axial direction of the center is arranged in the cavity of the center mounting member, and a first limiting block in limiting fit with the annular stepped surface is arranged at the end part of the center.
Further, a Y-shaped positioning groove for radially positioning the cam shaft is formed in the end face of the positioning block in the radial direction.
Further, one end of the center mounting member facing the rotary table is provided with an axial limiting cavity communicated with the cavity, one end of the distribution shaft facing the center is provided with a second limiting block, one end of the second limiting block is in limiting fit with the end face of the rotary table, the other end of the second limiting block is in limiting fit with the axial limiting cavity, the second center mounting member of the distribution shaft is provided with a threaded hole, and the center mounting member is in threaded connection with the distribution shaft through a second screw penetrating through the threaded hole.
Further, the turntable is provided with a key groove along the circumferential direction, the center mounting member is provided with a key along the circumferential direction, and the turntable and the center mounting member are mounted in a matched manner through the key and the key groove.
Furthermore, a sealing ring is sleeved on the center, and the sealing ring is in sealing contact with the cavity.
Further, the center is sleeved with a dust ring, and the dust ring is positioned at the joint of the center mounting component and the positioning block.
Further, a shaft sleeve used for radially limiting the distribution shaft is sleeved on the distribution shaft, and the shaft sleeve is positioned at one end of the distribution shaft, which faces the center.
Further, the number of the gas detection points is two, the gas detection points are both arranged on the end face of the positioning block, each gas detection point comprises a gas detection channel which corresponds to the gas detection point and is used for connecting the cavity with the gas detection point, and an included angle of 90 degrees is formed between the two gas detection points.
The beneficial effects of the invention are as follows: the end face gas detection device for positioning and clamping is integrated on the common camshaft clamping device, and can be used for positioning and clamping the end face of the camshaft before processing the camshaft by gas detection at a gas detection point, so that radial positioning of the camshaft is realized, and meanwhile, whether the end face of the camshaft is clamped or not is detected by the gas detection point. Two gas detection points are arranged on the end face of the positioning block, so that the fault tolerance is higher, and misjudgment is prevented.
Drawings
FIG. 1 is a front view of an end face air inspection device for positioning and clamping a cam shaft;
FIG. 2 is a top view of an end face air inspection device for positioning and clamping a camshaft according to the present invention;
FIG. 3 is a right side view of the present invention;
in the figure: 1-center mounting component, 2-locating block, 3-center, 4-spring, 5-gasket, 6-first screw, 7-T-shaped block, 8-key, 9-shaft sleeve, 10-distributing shaft, 11-rotary quick-change joint, 12-second screw, 13-third screw, 14-pin a, 15-camshaft, 16-turntable, 17-dust ring, 18-pin b, 19-Y-shaped locating slot, 20-gas detection point, 21-gas inlet channel, 22-gas detection channel, 23-annular step surface, 24-first limiting block, 25-sealing ring, 26-second limiting block.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 3, an end face air inspection device for positioning and clamping a camshaft comprises a turntable 16, a center mounting member 1, a positioning block 2, a distribution shaft 10, a rotary quick-change joint 11 and a center 3. The tip installation component 1 is of a conical structure, one end face of the tip installation component is larger than that of the other end face, the larger end face of the tip installation component 1 is fixed with the rotary table 16, and the smaller end face is fixedly connected with the positioning block 2. The positioning block 2 is fixed to the end of the tip mounting member 1 by a third screw 13 and a pin a 14. The end face of the turntable 16 is provided with a key groove along the circumferential direction, a key 8 is arranged on the center mounting component 1 at a position corresponding to the key groove, and the turntable 16 and the center mounting component 1 are matched and limited with the key 8 through the key groove. The end face of the turntable 16 is also provided with a T-shaped block 7, the center of the T-shaped block 7 is provided with a threaded hole, and the center mounting component 1 is in threaded connection with the T-shaped block 7 through a first screw 6 between the center mounting component 1 and the turntable 16.
The center of the center mounting component 1 is provided with a cavity, the center of the positioning block 2 is provided with a through hole for the center 3 to extend out, the cavity and the through hole form a channel for the center 3 to move in a telescopic mode, and the center 3 is arranged in the channel in a telescopic mode. The distribution shaft 10 passes through the rotary table 16, one end of the distribution shaft 10 is fixedly connected with the rotary quick-change connector 11, an air inlet channel 21 is arranged in the distribution shaft 10, the air inlet channel 21 is communicated with the cavity, two air detection points 20 are arranged at the end part of the positioning block 2, the two air detection points 20 form an included angle of 90 degrees, and each air detection point 20 comprises an air detection channel 22 which is corresponding to the air detection point 20 and is used for connecting the cavity with the air detection point 20.
The end of the center mounting member 1 facing the turntable 16 is provided with an axial limiting cavity communicated with the cavity, and the inner diameter of the axial limiting cavity is larger than that of the cavity. The outer diameter of the end of the distribution shaft 10 facing the center 3 is larger than that of the rest part, and radial limit is realized between the position and the turntable 16 through the shaft sleeve 9 sleeved on the distribution shaft 10. The end of the distribution shaft 10 is provided with a second limiting block 26, one end of the second limiting block 26 is in limiting fit with the end face of the turntable 16, and the other end of the second limiting block is in limiting fit with the axial limiting cavity, so that the distribution shaft is clamped and limited in the turntable 16. The second tip mounting member 26 of the dispensing shaft 10 is provided with a threaded hole, and the tip mounting member 1 is screwed with the dispensing shaft 10 by means of a second screw 12 passing through the threaded hole. An annular step surface 23 for axially limiting the center 3 is arranged in the cavity of the center mounting member 1, and a first limiting block 24 in limiting fit with the annular step surface 23 is arranged at the end part of the center 3. A spring 4 is also arranged in the cavity of the center mounting member 1, a gasket 5 is arranged between the spring 4 and the end part of the distribution shaft 10, and the other end of the spring 4 is elastically connected with the center 3.
The tip 3 is provided with a groove in the axial direction for gas communication with the cavity, and both ends of a gas detection channel 22 provided in the side wall of the tip mounting member 1 are respectively connected with the groove and the gas detection point 20. And a sealing ring 25 is arranged on the center 3, and the sealing ring 25 is in sealing contact with the inner wall of the telescopic channel and is used for realizing gas isolation between the cavity and the through hole of the positioning block 2. The center 3 is sleeved with a dust ring 17, and the dust ring 17 is positioned at the connecting position of the center mounting member 1 and the positioning block 2 to prevent dust at the through hole from entering the cavity. The end surface of the positioning block 2 is provided with a Y-shaped positioning groove 19 along the radial direction for positioning the cam shaft 15, and the end surface of the cam shaft 15 is fixed with a pin b 17 matched with the Y-shaped positioning groove 19.
The device controls the compression amount of the spring 4 by adjusting the thickness of the gasket 5, thereby adjusting the elastic force of the spring 4 and matching the proper pressure required by clamping. The spring force is too large, the center 2 cannot retract, and the cam shaft 15 cannot fall onto the end face (namely the positioning face) of the positioning block 2; but also can avoid too small compression force, and the camshaft 15 can not achieve the clamping effect after compressing the center 2. After the camshaft 15 is manually placed on the device and clamped by adopting the left center and the right center, the radial position of the camshaft 15 can be limited by the positioning groove 19. Because the gas detection point 20 is on the end face of the positioning block 2, if the cam shaft 15 is clamped, the end face of the cam shaft 15 is completely attached to the end face of the positioning block 2, and at this time, the gas in the cavity cannot be discharged through the gas detection point, so that the gas cannot be detected at any position of the two gas detection points. If the camshaft 15 is not clamped, a gap exists between the end face of the camshaft 15 and the end face of the positioning block 2, and at this time, the gas in the cavity can be discharged through the gas detection points, and then the gas can be detected at any one or both of the two gas detection points.
In the foregoing, only the embodiments of the present invention have been described, and it should be noted that any changes and substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention should be covered in the scope of the present invention.
Claims (2)
1. An end face gas detection device for positioning and clamping of a cam shaft is characterized in that: the device comprises a center mounting member (1), a center (3) and a positioning block (2) for axially positioning a cam shaft, wherein the positioning block (2) is fixed at one end of the center mounting member (1), an air detection point (20) is arranged on the end face, facing the cam shaft, of the positioning block (2), a cavity for supplying air to the air detection point (20) is arranged in the center mounting member (1), the center (3) is elastically arranged in the cavity of the center mounting member (1), and the end part of the center extends outwards through the center of the positioning block (2);
the rotary type air inlet device is characterized by further comprising a rotary table (16), wherein one end of the center mounting member (1) is fixedly connected with the end face of the rotary table (16), the other end of the center mounting member is fixedly connected with the positioning block (2), a distribution shaft (10) is arranged in the rotary table (16) in a penetrating mode, one end of the distribution shaft (10) is connected with a rotary quick-change connector (11) for air supply, the other end of the distribution shaft is elastically connected with the end portion of the center (3) through an elastic member, an air inlet channel (21) is arranged in the distribution shaft (10), and the air inlet channel (21) is communicated with the cavity;
an axial limiting cavity communicated with the cavity is formed in one end, facing the rotary table (16), of the center mounting member (1), a second limiting block (26) is arranged at one end, facing the center (3), of the distribution shaft (10), one end of the second limiting block (26) is in limiting fit with the end face of the rotary table (16), the other end of the second limiting block is in limiting fit with the axial limiting cavity, a threaded hole is formed in the second center mounting member of the distribution shaft (10), and the center mounting member (1) is in threaded connection with the distribution shaft (10) through a second screw (12) penetrating through the threaded hole;
a sealing ring (25) is sleeved on the center (3), and the sealing ring (25) is in sealing contact with the cavity;
a dust ring (17) is sleeved on the center (3), and the dust ring (17) is positioned at the joint of the center mounting component (1) and the positioning block (2);
an annular step surface (23) for axially limiting the center (3) is arranged in the cavity of the center mounting member (1), and a first limiting block (24) in limiting fit with the annular step surface (23) is arranged at the end part of the center (3);
the end face of the positioning block (2) is provided with a Y-shaped positioning groove (19) for radially positioning the cam shaft (15) along the radial direction;
the turntable (16) is provided with a key groove along the circumferential direction, the center mounting component (1) is provided with a key (8) along the circumferential direction, and the turntable (16) and the center mounting component (1) are mounted in a matched manner through the key (8) and the key groove;
the distribution shaft (10) is sleeved with a shaft sleeve (9) for radially limiting the distribution shaft (10), and the shaft sleeve (9) is positioned at one end of the distribution shaft (10) facing the center (3).
2. The end face air inspection device for positioning and clamping of a cam shaft according to claim 1, wherein: the gas detection points (20) are two and are arranged on the end face of the positioning block (2), each gas detection point (20) comprises a gas detection channel (22) which corresponds to the gas detection point and is used for connecting the cavity with the gas detection point (20), and an included angle of 90 degrees is formed between the two gas detection points (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008659.1A CN107627153B (en) | 2017-10-25 | 2017-10-25 | End face gas detection device for positioning and clamping camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008659.1A CN107627153B (en) | 2017-10-25 | 2017-10-25 | End face gas detection device for positioning and clamping camshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107627153A CN107627153A (en) | 2018-01-26 |
| CN107627153B true CN107627153B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711008659.1A Active CN107627153B (en) | 2017-10-25 | 2017-10-25 | End face gas detection device for positioning and clamping camshaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN107627153B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732323B (en) * | 2021-09-02 | 2023-01-03 | 上汽通用五菱汽车股份有限公司 | Air seal positioning clamp, positioning detection system and method for shaft workpieces |
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| JPH07636U (en) * | 1993-06-03 | 1995-01-06 | 株式会社日平トヤマ | Work support device |
| JP2002103109A (en) * | 2000-09-29 | 2002-04-09 | Teikoku Chuck Kk | Lead-in chuck |
| CN102452019A (en) * | 2011-12-20 | 2012-05-16 | 上海三一精机有限公司 | Positioning device for workbench |
| CN102528506A (en) * | 2011-12-12 | 2012-07-04 | 杨伯成 | Clamping device |
| CN202428209U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | High-precision blank work piece positioning mechanism |
| CN202825269U (en) * | 2012-08-21 | 2013-03-27 | 大连机床(数控)股份有限公司 | Crank shaft axial automatic positioning apex device |
| CN202947583U (en) * | 2012-11-18 | 2013-05-22 | 无锡麦铁精密机械制造有限公司 | Turbine casing position degree detecting device |
| CN203031332U (en) * | 2012-12-27 | 2013-07-03 | 重庆机床(集团)有限责任公司 | Tooling with end face clamping-in-place detecting mechanism |
| CN203317064U (en) * | 2013-05-13 | 2013-12-04 | 亿达日平机床有限公司 | Device integrating functions of lifting slightly and supporting in an auxiliary mode |
| CN204248535U (en) * | 2014-11-20 | 2015-04-08 | 燕山大学 | A kind of locating and supporting device that can detect workpiece and whether set level |
| CN206343971U (en) * | 2016-11-17 | 2017-07-21 | 神龙汽车有限公司 | Gas for process equipment fixture examines positioner |
| CN207788441U (en) * | 2017-10-25 | 2018-08-31 | 东风设备制造有限公司 | Camshaft positions clamping end face gas check |
-
2017
- 2017-10-25 CN CN201711008659.1A patent/CN107627153B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07636U (en) * | 1993-06-03 | 1995-01-06 | 株式会社日平トヤマ | Work support device |
| JP2002103109A (en) * | 2000-09-29 | 2002-04-09 | Teikoku Chuck Kk | Lead-in chuck |
| CN102528506A (en) * | 2011-12-12 | 2012-07-04 | 杨伯成 | Clamping device |
| CN102452019A (en) * | 2011-12-20 | 2012-05-16 | 上海三一精机有限公司 | Positioning device for workbench |
| CN202428209U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | High-precision blank work piece positioning mechanism |
| CN202825269U (en) * | 2012-08-21 | 2013-03-27 | 大连机床(数控)股份有限公司 | Crank shaft axial automatic positioning apex device |
| CN202947583U (en) * | 2012-11-18 | 2013-05-22 | 无锡麦铁精密机械制造有限公司 | Turbine casing position degree detecting device |
| CN203031332U (en) * | 2012-12-27 | 2013-07-03 | 重庆机床(集团)有限责任公司 | Tooling with end face clamping-in-place detecting mechanism |
| CN203317064U (en) * | 2013-05-13 | 2013-12-04 | 亿达日平机床有限公司 | Device integrating functions of lifting slightly and supporting in an auxiliary mode |
| CN204248535U (en) * | 2014-11-20 | 2015-04-08 | 燕山大学 | A kind of locating and supporting device that can detect workpiece and whether set level |
| CN206343971U (en) * | 2016-11-17 | 2017-07-21 | 神龙汽车有限公司 | Gas for process equipment fixture examines positioner |
| CN207788441U (en) * | 2017-10-25 | 2018-08-31 | 东风设备制造有限公司 | Camshaft positions clamping end face gas check |
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| CN107627153A (en) | 2018-01-26 |
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