CN107639468B - Air tightness detection device for lathe - Google Patents
Air tightness detection device for lathe Download PDFInfo
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- CN107639468B CN107639468B CN201711053465.3A CN201711053465A CN107639468B CN 107639468 B CN107639468 B CN 107639468B CN 201711053465 A CN201711053465 A CN 201711053465A CN 107639468 B CN107639468 B CN 107639468B
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000009423 ventilation Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 6
- 238000004891 communication Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides an airtight detection device for a lathe, and belongs to the technical field of machinery. The clamping point and the airtight detection point of the workpiece of the existing lathe airtight detection device are concentrated together, so that the problem that chip removal is not facilitated is solved. The positioning seat is coaxially arranged at the front end of the chuck, a plurality of supporting columns which are equal to the clamping jaws on the chuck are arranged at the edge of the positioning seat, the supporting columns are uniformly distributed and extend forwards along the axial direction of the positioning seat, a main air passage is arranged in the positioning seat, branch air passages communicated with the main air passage are arranged in the supporting columns, an annular offset seat is arranged at the front ends of the supporting columns, a positioning surface for positioning the step surface of a workpiece is arranged at the front end of the offset seat, vent holes which are opposite to the process point of the workpiece are arranged on the positioning surface, the number of the vent holes is equal to the number of the supporting columns, and the vent holes are communicated with the branch air passages in the supporting columns which are correspondingly arranged. The invention has the advantages of facilitating chip removal and the like.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to an airtight detection device for a lathe.
Background
When the numerical control lathe processes a part, a workpiece is clamped on the chuck, and the workpiece positioning surface is required to be tightly attached to the chuck positioning surface so as to ensure that the workpiece is positioned accurately in the axial direction and is aligned in the radial direction. However, in actual operation, workers can not see whether the workpieces are tightly attached or not easily, and each workpiece can not be clamped in place, so that the processed parts are likely to be waste.
To this end, the applicant has invented a lathe air tightness detection device [ authorized bulletin number: CN203610693U ], a positioning block is fixed at the right end of the power chuck, a positioning column is integrally formed on the right end face of the positioning block, an air supply rod is penetrated in the center of the pull rod, the left end of the air supply rod is fixed with the cylinder body of the rotary cylinder, the right end of the air supply rod extends to the center of the circumference surrounded by a plurality of positioning columns, a vent hole is formed on the air supply rod along the axial lead of the air supply rod, an air inlet of the vent hole is communicated with an outlet of the air pressure rotary machine, an air outlet of the vent hole is communicated with an inlet of an air hole arranged on the positioning block, and an air hole outlet is positioned on the right end face of the corresponding positioning column.
The workpiece is tightly attached to the right end face of each positioning column of the positioning block through the positioning face and is clamped by the clamping jaw, gas enters the vent hole of the gas supply rod from the gas pressure gyrator, then enters the vent hole of the positioning block through the vent hole, and finally reaches the right end face of each positioning column of the positioning block. If a gap exists between the workpiece and the positioning block, gas leaks from the gap, and an air gap sensor in the air pressure rotator detects air pressure loss, namely, an alarm prompts that the workpiece is not clamped in place, and the machine tool does not enter a machining program until the workpiece is clamped again in place, so that machining can be performed.
However, the airtight detection device for the lathe still has the following problems: the number of the positioning columns is equal to that of the clamping jaws and the positioning columns are in one-to-one correspondence, namely clamping points of the clamping jaws on the workpiece are concentrated together with airtight detection points, and the detection points are fixed and are close to the workpiece, so that chip removal is not facilitated.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a lathe air tightness detection device beneficial to chip removal.
The aim of the invention can be achieved by the following technical scheme:
the airtight detection device of the lathe comprises a positioning seat coaxially arranged at the front end of a chuck, wherein a plurality of supporting columns equal to the clamping jaws on the chuck are arranged at the edge of the positioning seat, the supporting columns are uniformly distributed and extend forwards along the axial direction of the positioning seat, a main gas passage is arranged in the positioning seat, a branch gas passage communicated with the main gas passage is arranged in the supporting columns, and the airtight detection device is characterized in that a plurality of annular offset seats are arranged at the front ends of the supporting columns, positioning surfaces for positioning step surfaces of workpieces are arranged at the front ends of the offset seats, vent holes which are arranged opposite to the process points of the workpieces are arranged on the positioning surfaces, the number of the vent holes is equal to the number of the supporting columns, and the vent holes are communicated with the branch gas passages in the supporting columns which are correspondingly arranged.
In the lathe airtight detection device, the number of the clamping claws is three, the number of the supporting columns is three, the number of the air holes is three, and the air holes are communicated with the branch air passages in the supporting columns which are correspondingly arranged through the air holes.
In the lathe airtight detection device, the vent hole is perpendicular to the positioning surface, the vent structure comprises a first blind hole penetrating inwards from the side surface of the offset seat and a second blind hole intersecting with the first blind hole, the inner end of the first blind hole is communicated with the branch air passage, the inner end of the second blind hole is communicated with the vent hole, the outer end of the first blind hole is provided with a first plug, and the outer end of the second blind hole is provided with a second plug.
Because the gas path is perpendicular to the locating surface, the vent hole is perpendicular to the locating surface, and the vent hole and the locating surface are not in the same straight line, in order to realize the communication of the gas path and the locating surface, and under the premise of convenient processing, the blind hole I and the blind hole II are punched from the side part of the offset seat, then the outer end of the blind hole I is blocked by the plug I, and the outer end of the blind hole II is blocked by the plug II. And the gas enters the first blind hole and the second blind hole from the branch gas channel and then enters the vent hole, so that the process point of the workpiece is subjected to airtight detection.
In the airtight detection device for the lathe, the front end of the offset seat is provided with three bosses corresponding to the process points of the workpiece, the vent holes are arranged on the bosses corresponding to the offset seat in a penetrating way, and the front end surfaces of the three bosses are positioned in the same plane and form the positioning surface.
In the airtight detection device for the lathe, each jaw is provided with a pair of jaws extending to the front end face of the offset seat and used for clamping a workpiece, and the three pairs of jaws and the three bosses are arranged in a staggered mode.
In the lathe airtight detection device, the pull rod is penetrated in the chuck, the pull rod is internally provided with the air guide hole, and the front end of the air guide hole is communicated with the main air channel. The rear end of the air guide hole is fixedly connected with the cylinder body of the rotary oil cylinder, and an air inlet nozzle for air supply of the air guide hole is arranged on the rotary oil cylinder.
In the airtight detection device for the lathe, an inward concave mounting groove is formed in the middle of the front end of the chuck, and the positioning seat is mounted in the mounting groove.
In the airtight detection device for the lathe, the back of the positioning seat is provided with the giving-up grooves which are arranged in one-to-one correspondence with the clamping jaws. The setting of the groove of stepping down can provide favourable space of stepping down for the radial motion of jack catch, can guarantee the radial free motion of jack catch along the chuck.
Compared with the prior art, the airtight detection device of the lathe has the following advantages: the position of the vent hole can be determined according to the position of the workpiece process point, so that the vent hole and the support column are staggered, namely, the clamping points of the clamping jaw on the workpiece and the airtight detection points are dispersed, the chip removal space is effectively increased, and chip removal is facilitated.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Fig. 2 is a working state diagram of a preferred embodiment provided by the present invention.
Fig. 3 is a front view of fig. 2 provided by the present invention.
FIG. 4 is a cross-sectional view taken at A-A in FIG. 3, provided by the present invention.
Fig. 5 is a side view of fig. 2 provided by the present invention.
FIG. 6 is a cross-sectional view taken at B-B in FIG. 5, provided by the present invention.
In the figure, 1, a chuck; 2. a positioning seat; 3. a claw; 4. a support column; 5. a main air path; 6. a branch gas path; 7. a bias base; 8. a vent hole; 9. a blind hole I; 10. a second blind hole; 11. a first plug; 12. a second plug; 13. a boss; 14. an auxiliary claw; 15. a pull rod; 16. an air guide hole; 17. a mounting groove; 18. and (5) giving way.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
The airtight detection device of the lathe shown in fig. 1, 2, 3 and 5 comprises a positioning seat 2 coaxially arranged at the front end of a chuck 1, a plurality of supporting columns 4 equal to the clamping claws 3 on the chuck 1 are arranged at the edge of the positioning seat 2, the supporting columns 4 are uniformly distributed and extend forwards along the axial direction of the positioning seat 2, a main air passage 5 is arranged in the positioning seat 2, branch air passages 6 communicated with the main air passage 5 are arranged in the supporting columns 4, an annular biasing seat 7 is arranged at the front ends of the supporting columns 4, a positioning surface for positioning a step surface of a workpiece is arranged at the front ends of the biasing seat 7, vent holes 8 opposite to the process points of the workpiece are arranged on the positioning surface, the number of the vent holes 8 is equal to the number of the supporting columns 4, and the vent holes 8 are communicated with the branch air passages 6 in the supporting columns 4 correspondingly arranged.
In this embodiment, as shown in fig. 3, the number of the claws 3 is three, the number of the support columns 4 is three, the number of the vent holes 8 is three, and the vent holes 8 are communicated with the branch air passages 6 in the support columns 4 correspondingly arranged through the vent structure.
As shown in fig. 4, the vent hole 8 is perpendicular to the positioning surface, as shown in fig. 6, the vent structure comprises a first blind hole 9 penetrating inwards from the side surface of the offset seat 7 and a second blind hole 10 intersecting with the first blind hole 9, the inner end of the first blind hole 9 is communicated with the branch air channel 6, the inner end of the second blind hole 10 is communicated with the vent hole 8, the outer end of the first blind hole 9 is provided with a first plug 11, and the outer end of the second blind hole 10 is provided with a second plug 12.
Because the gas-supporting channel 6 is vertical to the positioning surface, the vent hole 8 is vertical to the positioning surface, and the vent hole 8 and the positioning surface are not on the same straight line, in order to realize the communication of the gas-supporting channel and the positioning surface, and on the premise of convenient processing, the first blind hole 9 and the second blind hole 10 are punched from the side part of the offset seat 7, then the outer end of the first blind hole 9 is blocked by the first plug 11, and the outer end of the second blind hole 10 is blocked by the second plug 12. The gas enters the first blind hole 9 and the second blind hole 10 from the gas branch passage 6 and then enters the vent hole 8, so that the air tightness of the process point of the workpiece is detected.
As shown in fig. 1, the front end of the offset seat 7 is provided with three bosses 13 corresponding to the process points of the workpiece, the vent holes 8 are arranged on the bosses 13 corresponding to the process points, and the front end surfaces of the three bosses 13 are positioned in the same plane and form a positioning surface.
As shown in fig. 2, each jaw 3 is provided with a sub-jaw 14 extending to the front end face of the offset seat 7 for clamping a workpiece, and the three sub-jaws 14 are staggered with the three bosses 13.
As shown in fig. 4, a pull rod 15 is penetrated in the chuck 1, an air vent hole 16 is arranged in the pull rod 15, and the front end of the air vent hole 16 is communicated with the main air channel 5. The rear end of the air guide hole 16 is fixedly connected with the cylinder body of the rotary oil cylinder, and an air inlet nozzle for air supply of the air guide hole 16 is arranged on the rotary oil cylinder.
As shown in fig. 4, the chuck 1 has a mounting groove 17 recessed inward in the middle of the front end, and the positioning seat 2 is mounted in the mounting groove 17.
As shown in fig. 4, the back of the positioning seat 2 is provided with relief grooves 18 which are arranged in one-to-one correspondence with the clamping claws 3. The provision of the relief groove 18 provides an advantageous relief space for the radial movement of the jaws 3, ensuring that the jaws 3 can move freely in the radial direction of the chuck 1.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a lathe airtight detection device, includes locating seat (2) of coaxial locating chuck (1) front end, the edge of locating seat (2) has a plurality of support columns (4) that are equal with jack catch (3) quantity on chuck (1), support column (4) evenly distributed and extend forward along the axial of locating seat (2), locating seat (2) in have main gas circuit (5), support column (4) in have branch gas circuit (6) with main gas circuit (5) intercommunication, characterized in that, a plurality of the front end of support column (4) is equipped with one and is cyclic annular biasing seat (7), the front end of biasing seat (7) has the locating surface that is used for fixing a position work piece step face, the locating surface on have vent (8) that set up with work piece technology point relatively, the quantity of vent (8) is equal with the quantity of support column (4), vent (8) and branch gas circuit (6) are not on same straight line, and vent (8) through vent structure and branch gas circuit (6) in the corresponding support column (4) that set up. The front end of the offset seat (7) is provided with three bosses (13) which are arranged corresponding to the process points of the workpiece, the vent holes (8) are arranged on the bosses (13) which are arranged corresponding to the vent holes in a penetrating way, and the front end surfaces of the three bosses (13) are positioned in the same plane and form a positioning surface; each jaw (3) is provided with a secondary jaw (14) extending to the front end face of the offset seat (7) for clamping a workpiece, and the three secondary jaws (14) and the three bosses (13) are arranged in a staggered manner.
2. The airtight detection device for a lathe according to claim 1, wherein the number of the clamping jaws (3) is three, the number of the supporting columns (4) is three, and the number of the vent holes (8) is three.
3. The airtight detection device of a lathe according to claim 2, wherein the vent hole (8) is perpendicular to the positioning surface, the ventilation structure comprises a first blind hole (9) penetrating inwards from the side surface of the offset seat (7) and a second blind hole (10) intersecting with the first blind hole (9), the inner end of the first blind hole (9) is communicated with the branch air passage (6), the inner end of the second blind hole (10) is communicated with the vent hole (8), a first plug (11) is arranged at the outer end of the first blind hole (9), and a second plug (12) is arranged at the outer end of the second blind hole (10).
4. The airtight detection device for the lathe according to claim 1, wherein a pull rod (15) is arranged in the chuck (1) in a penetrating way, an air guide hole (16) is formed in the pull rod (15), and the front end of the air guide hole (16) is communicated with the main air channel (5).
5. The air tightness detection device of the lathe according to claim 1, wherein the middle part of the front end of the chuck (1) is provided with an inward concave mounting groove (17), and the positioning seat (2) is mounted in the mounting groove (17).
6. The air tightness detection device of the lathe according to claim 1, wherein the back of the positioning seat (2) is provided with yielding grooves (18) which are arranged in one-to-one correspondence with the clamping jaws (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053465.3A CN107639468B (en) | 2017-11-01 | 2017-11-01 | Air tightness detection device for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053465.3A CN107639468B (en) | 2017-11-01 | 2017-11-01 | Air tightness detection device for lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107639468A CN107639468A (en) | 2018-01-30 |
| CN107639468B true CN107639468B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053465.3A Active CN107639468B (en) | 2017-11-01 | 2017-11-01 | Air tightness detection device for lathe |
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| CN (1) | CN107639468B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705112A (en) * | 2018-04-28 | 2018-10-26 | 浙江康普瑞汽车零部件有限公司 | Oblique-pulling type chuck and process equipment |
| CN110153798A (en) * | 2019-05-31 | 2019-08-23 | 江苏太平洋精锻科技股份有限公司 | A kind of positioning tooth mould with air-leakage test |
| CN110524126B (en) * | 2019-10-29 | 2020-02-07 | 佛山市宏石激光技术有限公司 | Pipe clamping method of pneumatic chuck of laser pipe cutting machine |
| CN111822743B (en) * | 2020-01-13 | 2022-03-04 | 宁波久尔顺轴承有限公司 | Bearing ring punching method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11188512A (en) * | 1997-12-25 | 1999-07-13 | Howa Mach Ltd | Chuck |
| JP2002103109A (en) * | 2000-09-29 | 2002-04-09 | Teikoku Chuck Kk | Lead-in chuck |
| JP2008221365A (en) * | 2007-03-09 | 2008-09-25 | Teikoku Chuck Kk | Suction chuck device |
| JP2012240175A (en) * | 2011-05-23 | 2012-12-10 | Teikoku Chuck Kk | Stopper attaching structure of chuck device |
| CN205996221U (en) * | 2016-08-30 | 2017-03-08 | 津上精密机床（浙江）有限公司 | A kind of lathe air tightness detection apparatus |
| CN207387232U (en) * | 2017-11-01 | 2018-05-22 | 重庆第二机床厂有限责任公司 | A kind of lathe air tightness detection apparatus |
-
2017
- 2017-11-01 CN CN201711053465.3A patent/CN107639468B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11188512A (en) * | 1997-12-25 | 1999-07-13 | Howa Mach Ltd | Chuck |
| JP2002103109A (en) * | 2000-09-29 | 2002-04-09 | Teikoku Chuck Kk | Lead-in chuck |
| JP2008221365A (en) * | 2007-03-09 | 2008-09-25 | Teikoku Chuck Kk | Suction chuck device |
| JP2012240175A (en) * | 2011-05-23 | 2012-12-10 | Teikoku Chuck Kk | Stopper attaching structure of chuck device |
| CN205996221U (en) * | 2016-08-30 | 2017-03-08 | 津上精密机床（浙江）有限公司 | A kind of lathe air tightness detection apparatus |
| CN207387232U (en) * | 2017-11-01 | 2018-05-22 | 重庆第二机床厂有限责任公司 | A kind of lathe air tightness detection apparatus |
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| CN107639468A (en) | 2018-01-30 |
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Effective date of registration: 20240129 Address after: 400072 No. 6 Jiangxi Road, Nanan District, Chongqing Applicant after: CHONGQING MACHINE TOOL (Group) Co.,Ltd. Country or region after: China Address before: 401336 No. 1 Peony Road, Nan'an District, Chongqing Applicant before: CHONGQING NO.2 MACHINE TOOL WORKS Co.,Ltd. Country or region before: China |
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