CN105043213A - Three-claw centering type detection device for shaft-type parts - Google Patents
Three-claw centering type detection device for shaft-type parts Download PDFInfo
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- CN105043213A CN105043213A CN201510221831.6A CN201510221831A CN105043213A CN 105043213 A CN105043213 A CN 105043213A CN 201510221831 A CN201510221831 A CN 201510221831A CN 105043213 A CN105043213 A CN 105043213A
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- axial workpiece
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Abstract
The invention discloses a three-claw centering type detection device for shaft-type parts, which comprises a support frame, a thread stepped shaft and a base. The thread stepped shaft is arranged on the support frame via a threaded rod. The base is sleeved onto the thread stepped shaft. The base is internally provided with a spring. The spring is sleeved onto the thread stepped shaft. The support frame is uniformly provided with three adjustment parts along the circumference direction of a bearing. The adjustment parts are composed of a support post and a dual-head stud, wherein the support post is arranged on the support frame and the dual-head stud is connected with the support post via a nut and a thread sleeve. The end tip of the support post is provided with the bearing via a pin. According to the technical scheme of the invention, three adjustment parts serve as three claws to center shaft-type parts. In this way, shaft-type parts or sleeve-type parts can be quickly, conveniently and accurately clamped and rotated. In combination with various measuring tools, such as a vernier caliper, an outside micrometer, an inside micrometer, a bore dial indicator or other measuring tools, the internal and external diameters, the length dimensions and the geometric tolerances of shaft-type parts can be detected.
Description
Technical field
The invention belongs to piece test technical field, specifically relate to a kind of three-jaw centering formula axial workpiece pick-up unit.
Background technology
At present, the measurement for axle or cover parts generally adopts hand-held or is placed on worktable and carries out, and conventional method of operating has several as follows:
(1) adopt a hand-held workpiece, when a hand-held measurer carries out corresponding size measurement to workpiece, due to workpiece having oil, the easy landing of workpiece, can injure workpiece by a crashing object or injure people by a crashing object, can strengthen each dimensional measurement error simultaneously;
(2) employing is placed on method platform carrying out measure, and has and rocks or place shakiness, just cause the inaccurate of measurement, even injure workpiece and measurer by a crashing object;
(3) for the measurement of the geometric tolerances of axle or cover parts, general cooperation adopts contour V-type seat, but workpiece rotates dumb, and this method is time-consuming, and effort is extremely inconvenient, causes measuring error to strengthen;
(4) if adopt the highly sophisticated devices such as three-dimensional to measure, should not use at the scene, cost is too high again, and cost performance is low.
For overcoming the deficiency existing for existing axial workpiece measuring method, there is the axial workpiece pick-up unit of various sample at present.Such as, publication number is that the Chinese patent of CN203203556U discloses a kind of axial workpiece pick-up unit, instrument with computing machine and data acquisition equipment for hardware platform, coordinate necessary sensor, signal condition equipment and data collecting card form a set of axial workpiece comprehensive detector, the multiple parameters that can carry out axial workpiece detects, as length, diameter, circularity, cylindricity, right alignment, circle is beated, tapering etc., it is high that this test macro has detection efficiency, precision is high, easy to use, friendly interface, measurement parameter is many, the feature that cost performance is high, be applicable to using between all kinds of inspection vehicle.But this device adopts toply to clamp part, and therefore the clamping of part is inconvenient, rotates dumb, simultaneously toply easily damage is caused to part.
For another example, publication number is that the Chinese patent of CN201145560Y discloses a kind of macrotype axes series parts pick-up unit, comprise two cover supports, on described support, level is alternate is provided with at least two semicircle orifices, also comprise at least four locating shafts that can be placed in described semicircle orifice, on described locating shaft, cover has bearing.Although this device adopts ball bearing cylindrical to replace v block inclined-plane, largely reduce axle to bevel friction power.But this device is employing 2 support, can not form firm clamping, is that part easily produces and rocks in measurement, and easily causes part landing during rotational parts, thus increase measuring error, reduce the measuring accuracy of part.
Summary of the invention
The object of the invention is to for the deficiency existing for existing axial workpiece pick-up unit, provide a kind of three-jaw centering formula axial workpiece pick-up unit.Thus the clamping and the rotation that complete axle or cover parts fast, easily and accurately can be realized, realize the inner and outer diameter to axial workpiece with the use of various measurer, the detection of length dimension and part geometry tolerance.
The present invention is achieved by following technical solution.
A kind of three-jaw centering formula axial workpiece pick-up unit, comprise bracing frame, screw thread Step Shaft and base, described screw thread Step Shaft is arranged on bracing frame by screw rod, described base sheath is contained on screw thread Step Shaft, also spring is installed at chassis interior, and spring housing is contained on screw thread Step Shaft, support frame as described above three adjustment component are evenly arranged along bearing circumferencial direction.
Described adjustment component comprises support column and studs, and wherein, support column is arranged on bracing frame, and studs is connected with support column by nut and swivel nut.
Described support column termination is provided with bearing by pin.
Described screw thread Step Shaft is evenly arranged four rectangular channels.
Described base top end is by being with rank nut lock on screw thread Step Shaft.
Described screw thread Step Shaft is positioned at lower spring end and is also provided with pad.
Support frame as described above is positioned at above adjustment component installation site and is provided with pilot hole, and by dog screw, studs is fixed on bracing frame.
Described base is also provided with mounting hole.
The invention has the beneficial effects as follows:
Compared with prior art, the present invention has as follows significantly a little:
(1) the present invention adopts 3 clamping modes, by adjustment studs 2, just can realize the different size part of clamping; Adopt bearing as the chuck of adjustment component simultaneously, what make to contact with workpiece for measurement is three bearings, thus realizes tested part band dynamic bearing and freely rotate together, rotates flexibly, workpiece without any rock or unstable, and piece surface does not have any damage;
(2) base can be fixed on the table surface such as Tool Cabinet, desk or side by direct screw by the present invention in use, this device can be in level or plumbness, workpiece is made to be in plumbness all the time, both hands are liberated, can use vernier caliper easily, outside micrometer, the measurers such as dial bore gage detect, thus minimizing measuring error, improve the measuring accuracy of part;
(3) because bracing frame of the present invention and screw thread Step Shaft adopt draw-in groove to be connected, in use, pull out bracing frame, throw off and be connected with the groove of screw thread Step Shaft, and half-twist, utilize the pulling force of spring, make bracing frame 3 reenter the groove of screw thread Step Shaft, at this moment, part is just in horizontality, can use vernier caliper easily, the length dimension of part measured by vernier depth gauge.
(4) the present invention adopts aluminum alloy materials to process, light and flexible, is easy to handling, and location, machining precision is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the mounting structure close-up schematic view of spring in the present invention;
Fig. 3 is the structural representation of measuring workpieces of the present invention;
Fig. 4 is exploded perspective view of the present invention.
In figure: 1-nut, 2-studs, 3-bracing frame, 4-screw thread Step Shaft, 5-screw rod, 6-is with rank nut, 7-base, 8-dog screw, 9-swivel nut, 10-bearing, 11-workpiece, and 12-sells, 13-support column, 14-spring, 15-pad, 16-dial gauge.
Embodiment.
Technical scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figures 1 to 4, a kind of three-jaw centering formula axial workpiece pick-up unit of the present invention, comprise bracing frame 3, screw thread Step Shaft 4 and base 7, described screw thread Step Shaft 4 is arranged on bracing frame 3 by screw rod 5, described base 7 is sleeved on screw thread Step Shaft 4, in base 7 inside, spring 14 is also installed, and spring 14 is sleeved on screw thread Step Shaft 4, support frame as described above 3 has been evenly arranged three adjustment component along bearing 10 circumferencial direction.The technical program has been evenly arranged three adjustment component formation three-jaw centerings by adopting on bracing frame 3, clamping and the rotation of axle or cover parts can be completed fast, easily and accurately, with the use of the inner and outer diameter that various measurer can realize axial workpiece as measurers such as vernier caliper, outside micrometer, micrometer inside caliper or dial bore gages, the detection of length dimension and part geometry tolerance.The present invention adopts aluminium alloy manufacture, light, practical, tailored appearance.
Described adjustment component comprises support column 13 and studs 2, and wherein, support column 13 is arranged on bracing frame 3, and studs 2 is connected with support column 13 by nut 1 and swivel nut 9.As shown in Figure 1, in use, by adjustment studs 2, the workpiece 11 of the different size of clamping can just be realized.
Described support column 13 termination is provided with bearing 10 by pin 12.Owing to adopting bearing 10 as the clamping head of this device, thus realize tested part band dynamic bearing and freely rotate together, rotate flexibly, workpiece without any rock or unstable, and piece surface does not have any damage.
Described screw thread Step Shaft 4 is evenly arranged four rectangular channels.In use, bracing frame 3 can be pulled out, throw off bracing frame 3 to be connected with the groove of screw thread Step Shaft 4, half-twist, utilizes the pulling force of spring 14, makes bracing frame 3 reenter the groove of screw thread Step Shaft 4 simultaneously, at this moment, part is just in horizontality, can use vernier caliper easily, and the length dimension of part measured by vernier depth gauge.
Described base 7 top end is locked on screw thread Step Shaft 4 by band rank nut 6.
Described screw thread Step Shaft 4 is positioned at spring 14 lower end and is also provided with pad 15.
Support frame as described above 3 is positioned at above adjustment component installation site and is provided with pilot hole, and by dog screw 8, studs 2 is fixed on bracing frame 3.
Described base 7 is also provided with mounting hole.In use, by mounting hole, base 7 is fixed on the table surface such as Tool Cabinet, desk or side with screw, make whole device be in level or plumbness, and make workpiece be in plumbness all the time, liberate both hands, vernier caliper can be used easily, outside micrometer, the measurers such as dial bore gage detect, and can ensure reading and measure correct posture, reduce measuring error, improve the measuring accuracy of part.
As shown in Figure 3, when adopting device of the present invention to measure shaft-like workpiece 11, directly dial indicator holder is adsorbed in the plane of screw thread Step Shaft 4, the gauge outfit of dial gauge 16 is touched on the axle journal of measured workpiece 11, turning of work piece 11, the circle can measuring axle journal is beated, use the same method, circle of another place's axle journal of measuring workpieces 11 can beat, by the circle value of beating of both contrasts, thus obtain the value of the right alignment at two places.
The present invention uses aluminum alloy materials to make, light and flexible, is easy to handling, and location, machining precision is high.
Claims (8)
1. a three-jaw centering formula axial workpiece pick-up unit, it is characterized in that: comprise bracing frame (3), screw thread Step Shaft (4) and base (7), described screw thread Step Shaft (4) is arranged on bracing frame (3) by screw rod (5), described base (7) is sleeved on screw thread Step Shaft (4), in base (7) inside, spring (14) is also installed, and spring (14) is sleeved on screw thread Step Shaft (4), and support frame as described above (3) has been evenly arranged three adjustment component along bearing (10) circumferencial direction.
2. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, it is characterized in that: described adjustment component comprises support column (13) and studs (2), wherein, support column (13) is arranged on bracing frame (3), and studs (2) is connected with support column (13) by nut (1) and swivel nut (9).
3. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 2, is characterized in that: described support column (13) termination is provided with bearing (10) by pin (12).
4. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, is characterized in that: described screw thread Step Shaft (4) has been evenly arranged four rectangular channels.
5. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, is characterized in that: described base (7) top end is locked on screw thread Step Shaft (4) by band rank nut (6).
6. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, is characterized in that: described screw thread Step Shaft (4) is positioned at spring (14) lower end and is also provided with pad (15).
7. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, it is characterized in that: support frame as described above (3) is positioned at above adjustment component installation site and is provided with pilot hole, and by dog screw (8), studs (2) is fixed on bracing frame (3).
8. a kind of three-jaw centering formula axial workpiece pick-up unit according to claim 1, is characterized in that: (7) are also provided with mounting hole to described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221831.6A CN105043213B (en) | 2015-05-05 | 2015-05-05 | A kind of three-jaw centering formula axial workpiece detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510221831.6A CN105043213B (en) | 2015-05-05 | 2015-05-05 | A kind of three-jaw centering formula axial workpiece detection device |
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| CN105043213A true CN105043213A (en) | 2015-11-11 |
| CN105043213B CN105043213B (en) | 2018-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841255A (en) * | 2017-03-27 | 2017-06-13 | 同济大学 | A kind of adjustable clamping device for axonometry |
| CN110307977A (en) * | 2018-03-20 | 2019-10-08 | 青岛海尔滚筒洗衣机有限公司 | A kind of big Bearing testing tool of washing machine outer cylinder |
| CN111307022A (en) * | 2020-03-10 | 2020-06-19 | 南通冠亚机械科技有限公司 | Odd-number tooth-shaped screw outer diameter measuring meter for air compressor |
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| US4358896A (en) * | 1980-11-06 | 1982-11-16 | Thomas William L | Workpiece locator |
| CN101216276A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Method for measuring part inner circle roundness and measuring apparatus |
| CN203414048U (en) * | 2013-08-13 | 2014-01-29 | 桂林电子科技大学 | Radial strain measurement device of super high pressure hydraulic cylinder |
| CN203635973U (en) * | 2013-12-09 | 2014-06-11 | 浙江陀曼精密机械有限公司 | Automatic aligning clamp mechanism for three-jaw chucks |
| CN203804573U (en) * | 2014-05-20 | 2014-09-03 | 成都西菱动力科技股份有限公司 | Rolling type support centre frame |
| CN203929043U (en) * | 2014-05-27 | 2014-11-05 | 广州大学 | A kind of rotatable measured material |
| CN204924122U (en) * | 2015-05-05 | 2015-12-30 | 贵州航天工业学校 | Axle type part detection device |
-
2015
- 2015-05-05 CN CN201510221831.6A patent/CN105043213B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358896A (en) * | 1980-11-06 | 1982-11-16 | Thomas William L | Workpiece locator |
| CN101216276A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Method for measuring part inner circle roundness and measuring apparatus |
| CN203414048U (en) * | 2013-08-13 | 2014-01-29 | 桂林电子科技大学 | Radial strain measurement device of super high pressure hydraulic cylinder |
| CN203635973U (en) * | 2013-12-09 | 2014-06-11 | 浙江陀曼精密机械有限公司 | Automatic aligning clamp mechanism for three-jaw chucks |
| CN203804573U (en) * | 2014-05-20 | 2014-09-03 | 成都西菱动力科技股份有限公司 | Rolling type support centre frame |
| CN203929043U (en) * | 2014-05-27 | 2014-11-05 | 广州大学 | A kind of rotatable measured material |
| CN204924122U (en) * | 2015-05-05 | 2015-12-30 | 贵州航天工业学校 | Axle type part detection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841255A (en) * | 2017-03-27 | 2017-06-13 | 同济大学 | A kind of adjustable clamping device for axonometry |
| CN106841255B (en) * | 2017-03-27 | 2019-07-05 | 同济大学 | A kind of adjustable clamping device for axonometry |
| CN110307977A (en) * | 2018-03-20 | 2019-10-08 | 青岛海尔滚筒洗衣机有限公司 | A kind of big Bearing testing tool of washing machine outer cylinder |
| CN111307022A (en) * | 2020-03-10 | 2020-06-19 | 南通冠亚机械科技有限公司 | Odd-number tooth-shaped screw outer diameter measuring meter for air compressor |
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| Publication number | Publication date |
|---|---|
| CN105043213B (en) | 2018-09-07 |
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