CN108555799B - A rod-type positioning tool for plate parallelism and coaxiality - Google Patents
A rod-type positioning tool for plate parallelism and coaxiality Download PDFInfo
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- CN108555799B CN108555799B CN201810531335.4A CN201810531335A CN108555799B CN 108555799 B CN108555799 B CN 108555799B CN 201810531335 A CN201810531335 A CN 201810531335A CN 108555799 B CN108555799 B CN 108555799B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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Abstract
本发明公开了一种板料平行度、同轴度的杆式定位工装，包括两端设置有螺纹并且用于安装工件的高精度安装轴、一个以上的定位隔套和两个分别可与高精度安装轴两端螺纹配合的防松螺母，定位隔套套设在高精度安装轴上并且其两端用于与工件抵接，防松螺母用于与位于高精度安装轴两端的工件抵接。本发明的有益效果是：通过设置高精度安装轴，安装后所有的工件的安装孔的中心均位于高精度安装轴的中心线上，保持所有定位的工件的同轴度，由于工件均与高精度安装轴垂直，所以所有的工件均平行，确保工件的平行度，本申请中的定位隔套用于将工件隔开，防松螺母用于从高精度安装轴的两端压紧工件，对工件起到固定的作用。
The present invention discloses a rod-type positioning tool for the parallelism and coaxiality of sheet metal, comprising a high-precision mounting shaft with threads at both ends for mounting workpieces, one or more positioning sleeves, and two anti-loosening nuts respectively capable of matching with threads at both ends of the high-precision mounting shaft, the positioning sleeve being sleeved on the high-precision mounting shaft and its two ends being used to abut against the workpieces, and the anti-loosening nuts being used to abut against the workpieces at both ends of the high-precision mounting shaft. The beneficial effects of the present invention are as follows: by setting the high-precision mounting shaft, the centers of the mounting holes of all the workpieces after installation are located on the center line of the high-precision mounting shaft, and the coaxiality of all the positioned workpieces is maintained. Since the workpieces are all perpendicular to the high-precision mounting shaft, all the workpieces are parallel, and the parallelism of the workpieces is ensured. The positioning sleeves in the present application are used to separate the workpieces, and the anti-loosening nuts are used to press the workpieces from both ends of the high-precision mounting shaft, and play a role in fixing the workpieces.
Description
Technical Field
The invention relates to a rod type positioning tool for parallelism and coaxiality of plates.
Background
In industrial automation assembly, a plurality of plates have requirements on parallelism and coaxiality, the accuracy of the plates cannot be ensured by manual installation, and other parts matched with each other can be damaged by repeated installation and adjustment, so that the product performance is greatly influenced. The multiple adjustment installation not only increases the assembly cost, but also increases the corresponding labor amount, and seriously fails to meet the automatic requirement.
Disclosure of Invention
The invention aims to provide a rod type positioning tool for parallelism and coaxiality of plates, which solves the technical defects of high assembly cost and large labor investment caused by the fact that the parallelism and coaxiality of the plates need to be adjusted for multiple times in the prior art.
In order to solve the problems, the technical scheme is that the rod type positioning tool for the parallelism and the coaxiality of the plates comprises a high-precision mounting shaft, more than one positioning spacer and two locknuts, wherein threads are arranged at two ends of the high-precision mounting shaft and used for mounting workpieces, the locknuts are respectively matched with the threads at two ends of the high-precision mounting shaft, the positioning spacer is sleeved on the high-precision mounting shaft, two ends of the positioning spacer are used for being abutted with the workpieces, and the locknuts are used for being abutted with the workpieces at two ends of the high-precision mounting shaft. The high-precision mounting shaft is arranged, the centers of the mounting holes of all the workpieces are positioned on the central line of the high-precision mounting shaft after the mounting, so that coaxiality of all the positioned workpieces is kept, and all the workpieces are parallel because the workpieces are perpendicular to the high-precision mounting shaft, so that parallelism of the workpieces is ensured.
As a further improvement of the application, the positioning spacer comprises two short spacer units and two long spacer units, wherein the two short spacer units are positioned close to the locknut, and the adjacent long spacer units and the short spacer units are used for clamping the workpiece. The application adopts the long spacer bush unit and the short spacer bush unit to limit the distance between the workpieces, so that the requirements of the workpieces are met.
As a further improvement of the application, a U-shaped partition plate is arranged on the high-precision mounting shaft between the two long spacer units, and two sides of the U-shaped partition plate are abutted with the two long spacer units. The U-shaped partition board is arranged, when the nut is loosened, the U-shaped partition board and the U-shaped retainer ring at the shaft end can be directly taken down, other parts are sequentially taken out, the disassembly is quite convenient, otherwise, when the U-shaped partition board is installed, other parts can be sequentially installed, the U-shaped partition board and the U-shaped retainer ring are inserted, and finally the nuts at the two ends are locked.
As a further improvement of the application, a plurality of mounting holes are formed in the high-precision mounting shaft along the radial direction of the high-precision mounting shaft, positioning holes corresponding to the mounting holes are formed in the long spacer sleeve unit and the short spacer sleeve unit, a ball plunger is arranged in the mounting holes, and the ball of the ball plunger can be matched with the positioning holes. The ball plunger is arranged, and the ball pressing distance of the ball can be automatically and flexibly adjusted by adopting a mode of pushing the ball by a spring, so that the gap is eliminated, the relative rotation is prevented, and the ball plunger is convenient to install and position.
As a further improvement of the application, the application further comprises two check rings, wherein the check rings are sleeved on the high-precision mounting shaft, and two sides of the check rings are respectively used for being abutted with the locknut and the workpiece. The check ring is arranged to separate the locknut from the workpiece, so that the workpiece is prevented from being damaged when the locknut is screwed.
As a further improvement of the application, the check ring is a U-shaped check ring with one side open. The U-shaped retainer ring is convenient to install on a high-precision installation shaft.
As a further improvement of the application, the diameter of the high-precision mounting shaft is smaller than that of a mounting through hole on a workpiece where the high-precision mounting shaft is positioned, a first bulge is arranged on one side, far away from the locknut, of the U-shaped check ring, the first bulge can extend into the mounting through hole of the workpiece, a second bulge is arranged on one end, far away from the other long spacer unit, of the long spacer unit, and the second bulge can extend into the mounting through hole of the workpiece. The application adopts the bulge, further improves the coaxiality of the workpiece, is more convenient for positioning the workpiece, and further improves the machining precision of the workpiece.
In summary, the application has the advantages that the application is composed of the high-precision mounting shaft and the positioning spacer, the parallelism between a plurality of plates is ensured by the positioning surface of the positioning spacer, the end surface machining precision is easy to ensure, the coaxiality of corresponding holes of the plates is ensured by utilizing the bulge and the high-precision mounting shaft to meet the use requirement, the application eliminates the gap between the high-precision mounting shaft and the positioning spacer by utilizing a plurality of ball plungers, improves the mounting precision of workpieces, solves the problem of low precision of the traditional tool by utilizing flexible matching of the ball plungers, and simultaneously installs the U-shaped partition between the adjacent positioning spacer, and the shaft ends adopt the shaft end U-shaped retainer ring to limit and detach, after loosening the nuts, the U-shaped partition and the shaft end U-shaped retainer ring can be directly taken down, and then the other parts are sequentially taken out, otherwise, the dismounting is quite convenient, and the U-shaped partition and the U-shaped retainer ring can be inserted in the other parts, and finally the nuts at two ends are locked.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a longitudinal section of the present invention.
Fig. 3 is a partial enlarged view at a in fig. 2.
Fig. 4 is a schematic perspective view of the present invention.
1, High-precision mounting of a shaft; 2, a positioning spacer bush, 3, a locknut, 4, a workpiece, 5, a long spacer bush unit, 6, a short spacer bush unit, 7, a U-shaped partition plate, 8, a mounting hole, 9, a positioning hole, 10, a ball plunger, 11, a U-shaped retainer ring, 12, a first bulge, 13 and a second bulge.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Embodiment one:
The rod type positioning tool for the parallelism and the coaxiality of the plates shown in the figures 1-4 comprises a high-precision mounting shaft 1 for mounting a plate type workpiece 4, more than one positioning spacer bush 2 and two locknuts 3, wherein threads are arranged at two ends of the high-precision mounting shaft 1, a through hole (not shown in the figure) penetrating through two ends of the positioning spacer bush 2 is formed in the center of the positioning spacer bush 2 along the length direction of the positioning spacer bush, the high-precision mounting shaft 1 is inserted into the through hole, the diameter of the through hole is slightly larger than that of the high-precision mounting shaft 1, the high-precision mounting shaft 1 and the locknuts are in clearance fit, on one hand, the high-precision mounting shaft 1 and the high-precision mounting shaft 1 can relatively move in the length direction, on the other hand, the positioning spacer bush 2 cannot relatively shake in the radial direction to conveniently sleeve the high-precision mounting shaft 1, the ends of the positioning spacer bush 2 are contacted with the workpiece 4 and abut against the workpiece 4 when the locknuts are used, the locknuts 3 can respectively form thread pairs with the threads at two ends of the high-precision mounting shaft 1, the locknuts 3 are in tight fit with the threads at one side of the workpiece 4, and the two locknuts 4 can be tightly pressed against the two ends of the high-precision mounting shaft 4 by the locknuts 4, and the high-precision mounting shaft 3 can be tightly pressed against the workpiece 4. The high-precision mounting shaft 1 is good in straightness, no bending part exists, the diameters of the parts between the threads of the two parts of the high-precision mounting shaft 1 are equal, so that the coaxiality of workpieces mounted on the high-precision mounting shaft 1 is kept, the end part of the positioning spacer 2 is a plane, the end face of the locknut 3 is also a plane, and after the workpieces 4 are clamped, all the workpieces 4 are perpendicular to the length direction of the high-precision positioning shaft 1, and the parallelism is good.
The number of the positioning spacers 2 in the embodiment is preferably four, and the positioning spacers specifically comprise two short spacer units 6 and two long spacer units 5, wherein the two short spacer units 6 are positioned close to the locknut 3, the adjacent long spacer units 5 and the short spacer units 6 are also used for clamping the workpiece 4, namely, four workpieces 4 are mounted on the high-precision mounting shaft 1 in the application, one workpiece 4 is respectively arranged between the two locknuts 3 and the two short spacer units 6 at two ends, and one workpiece 4 is respectively mounted between the two short spacer units 6 and the two long spacer units 5. In this embodiment, the two long spacer units 6 may contact each other at the ends far away from the short spacer unit 5, so as to form a limit therebetween, and prevent the two from sliding relatively with the high-precision mounting shaft 1 along the length direction of the high-precision mounting shaft 1 on the high-precision mounting shaft 1.
According to the application, a U-shaped partition plate 7 is preferentially arranged between the two long spacer units 5, the U-shaped partition plate 7 is sleeved on the high-precision mounting shaft 1, two sides of the U-shaped partition plate 7 are abutted against the two long spacer units 5, the U-shaped partition plates 7 with different widths can be selected according to different thicknesses of the clamped and positioned workpieces 4, and the U-shaped partition plate 7 and the locknut 3 can jointly fix the workpieces 4 on the high-precision mounting shaft 1. When the U-shaped partition plate 7 is disassembled, the U-shaped partition plate 7 can be directly taken down after the locknut 3 is loosened, and then the rest parts are sequentially taken out, so that the disassembly is quite convenient, otherwise, during the assembly, other parts can be sequentially installed, then the U-shaped partition plate 7 is inserted, and finally the locknuts 3 at the two ends are locked.
Embodiment two:
Compared with the first embodiment, the application has the advantages that a plurality of mounting holes 8 are formed on the high-precision mounting shaft 1 along the radial direction of the high-precision mounting shaft, as shown in fig. 4, positioning holes 9 corresponding to the mounting holes 8 are formed on the long spacer unit 5 and the short spacer unit 6, a ball plunger 10 is arranged in the mounting holes 8, the ball of the ball plunger 10 can be matched with the positioning holes 9, the ball plunger 10 and the mounting method thereof are both the prior art, the improvement of the embodiment compared with the first embodiment is that the ball plunger 10 is adopted to position the positioning spacer 2, the positioning spacer 2 and the high-precision mounting shaft 1 are prevented from rotating relatively in use, the number of the preferential mounting holes 8 is four, each long spacer unit 5 and each short spacer unit 6 are respectively provided with a positioning hole 9, the ball head of the ball head plunger 10 stretches out and draws back in the mounting holes 8, when the ball head of the ball head plunger 10 stretches out and is positioned in the positioning holes 9, no additional torque is applied to the positioning spacer 2, the positioning spacer 2 cannot rotate or slide relatively with the high-precision mounting shaft 1, the center lines of the preferential four mounting holes 8 are positioned on the same plane, and the center lines of the mounting holes 8 are perpendicularly intersected with the center line of the high-precision mounting shaft 1, so that the positioning spacer 2 is conveniently mounted and positioned on one hand, and the strength of the high-precision positioning shaft 1 is kept as much as possible to prevent the high-precision positioning shaft from deforming when the high-precision positioning shaft is used. Other structures of this embodiment are the same as those of the first embodiment, and specific reference is made to the first embodiment, which is not described in detail.
Embodiment III:
The present embodiment is a further improvement based on the first embodiment or the second embodiment, and compared with the first embodiment or the second embodiment, the present embodiment is provided with two check rings 11, the check rings 11 are sleeved on the high-precision mounting shaft 1, two sides of each check ring 11 are respectively used for abutting against the locknut 3 and the workpiece 4 (contacting the locknut 3 and the workpiece 4 and abutting against the locknut 3 and the workpiece 4 when being stressed), and the locknut 3 is not in direct contact with the workpiece 4 when the present application is used, so as to prevent damage to the workpiece 4 caused by relative rotation between the locknut and the workpiece 4 when the locknut 3 is screwed. In this embodiment, the retainer 11 is preferably a U-shaped retainer with an opening at one side, and the retainer 11 in the present application has an opening, so that the retainer 11 can be mounted on the high-precision mounting shaft 1 when the locknut 3 is screwed on the high-precision mounting shaft 1 and is about to contact with the workpiece 4, thereby facilitating the mounting of the retainer 11 on the high-precision mounting shaft 1. Other structures of this embodiment are the same as those of the first embodiment or the second embodiment, and specific reference is made to the first embodiment or the second embodiment, which is not described in detail.
Embodiment four:
The diameter of the high-precision mounting shaft 1 in this embodiment is smaller than that of a mounting through hole (not shown in the figure) on the workpiece 4 where the high-precision mounting shaft is positioned, a first arc-shaped (i.e., half of a ring) protrusion 12 is arranged on one side of the U-shaped retainer 11 far away from the locknut 3, the first protrusion 12 can extend into the mounting through hole of the workpiece 4, the outer diameter of the first protrusion 12 is equal to that of the mounting through hole of the workpiece 4, an annular second protrusion 13 is arranged on one end of the long spacer unit 5 far away from the other long spacer unit 5 (i.e., the opposite ends of the two long spacer units 5), the outer diameter of the second protrusion 13 can extend into the mounting through hole of the workpiece 4, the outer diameters of the first protrusion 12 and the second protrusion 13 are equal to that of the mounting through hole of the workpiece 4, the widths of the first protrusion 12 and the second protrusion 13 along the length direction of the high-precision mounting shaft 1 in this embodiment are smaller than or equal to that of the workpiece 4, and the widths of the first protrusion 12 and the second protrusion 13 in this embodiment are slightly smaller than that of the first protrusion 13 along the length direction of the high-precision mounting shaft 1. Other structures of this embodiment are the same as those of the third embodiment, and detailed description of this embodiment is omitted.
Parts of the above description not specifically described are either prior art or may be implemented by prior art. Moreover, the embodiments of the present invention are described in the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Equivalent changes and modifications of the invention are intended to be within the scope of the present invention.
Claims (2)
1. The rod type positioning tool for the parallelism and the coaxiality of the plates is characterized by comprising a high-precision mounting shaft (1) with threads at two ends and used for mounting a workpiece (4), more than one positioning spacer bush (2), two locknuts (3) and two check rings (11) which can be respectively matched with the threads at two ends of the high-precision mounting shaft (1), wherein the high-precision mounting shaft (1) has good straightness and no bending position, the diameters of the positions between the threads at two positions of the high-precision mounting shaft (1) are equal, a through hole penetrating through the two ends of the positioning spacer bush is formed in the center of the positioning spacer bush (2) along the length direction of the positioning spacer bush, the high-precision mounting shaft (1) is inserted into the through hole, the positioning spacer bush (2) is sleeved on the high-precision mounting shaft (1), the two ends of the positioning spacer bush (2) are in clearance fit with the workpiece (4), and the locknuts (3) are in butt joint with the workpiece (4) at the two ends of the high-precision mounting shaft (1);
the positioning spacer bush (2) comprises two short spacer bush units (6) and two long spacer bush units (5), the two short spacer bush units (6) are positioned close to the locknut (3), and the workpiece (4) is clamped between the adjacent long spacer bush units (5) and the short spacer bush units (6);
The check ring (11) is sleeved on the high-precision mounting shaft (1), and two sides of the check ring (11) are respectively used for being abutted with the locknut (3) and the workpiece (4);
The diameter of the high-precision mounting shaft (1) is smaller than the mounting through hole on the workpiece (4) where the high-precision mounting shaft is positioned, a first bulge (12) is arranged on one side, far away from the locknut (3), of the retainer ring (11), the first bulge (12) can extend into the mounting through hole of the workpiece (4), a second bulge (13) is arranged at one end, far away from the other long spacer unit (5), of the long spacer unit (5), the second bulge (13) can extend into the mounting through hole of the workpiece (4), and the width of the first bulge (12) and the second bulge (13) along the length direction of the high-precision mounting shaft (1) is smaller than or equal to the thickness of the workpiece (4);
A U-shaped partition plate (7) is arranged on the high-precision mounting shaft (1) between the two long spacer units (5), and two sides of the U-shaped partition plate (7) are abutted with the two long spacer units (5);
A plurality of mounting holes (8) are formed in the high-precision mounting shaft (1) along the radial direction of the mounting shaft, the central lines of the mounting holes (8) are positioned on the same plane, the central lines of the mounting holes (8) are vertically intersected with the central line of the high-precision mounting shaft (1), positioning holes (9) corresponding to the mounting holes (8) are formed in the long spacer units (5) and the short spacer units (6), ball plungers (10) are arranged in the mounting holes (8), and the balls of the ball plungers (10) can be matched with the positioning holes (9);
During the use, according to the different U-shaped baffle (7) of selecting different width of thickness of work piece (4) of centre gripping location, U-shaped baffle (7) are realized jointly with locknut (3) and are fixed work piece (4) on high accuracy installation axle (1), and during the dismantlement, after loosening locknut (3), directly take off U-shaped baffle (7) earlier, take out other parts in proper order again, during the installation, pack into other parts in proper order earlier, insert U-shaped baffle (7) again, locknut (3) at locking both ends at last.
2. The rod type positioning tool for the parallelism and the coaxiality of the plates is characterized in that the check ring (11) is a U-shaped check ring with an opening at one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531335.4A CN108555799B (en) | 2018-05-29 | 2018-05-29 | A rod-type positioning tool for plate parallelism and coaxiality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531335.4A CN108555799B (en) | 2018-05-29 | 2018-05-29 | A rod-type positioning tool for plate parallelism and coaxiality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108555799A CN108555799A (en) | 2018-09-21 |
| CN108555799B true CN108555799B (en) | 2024-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810531335.4A Active CN108555799B (en) | 2018-05-29 | 2018-05-29 | A rod-type positioning tool for plate parallelism and coaxiality |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483440B (en) * | 2018-12-27 | 2023-10-13 | 浙江联宜电机有限公司 | Coaxial correction device for shell and guide pipe of electric push rod |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141513A (en) * | 2016-07-26 | 2016-11-23 | 中国重汽集团柳州运力专用汽车有限公司 | Multi-work piece assembly welding positioner and assembly welding method |
| CN207026992U (en) * | 2017-08-09 | 2018-02-23 | 斯图尔特针钉制品(郑州)有限公司 | A kind of frock for the drilling of combing roller copper ring |
| CN208323168U (en) * | 2018-05-29 | 2019-01-04 | 南京埃斯顿智能系统工程有限公司 | A kind of rod-type positioning tool of the plate depth of parallelism, concentricity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204450283U (en) * | 2014-12-24 | 2015-07-08 | 北方工业大学 | A kind of same spindle clamping unit |
| CN104959638A (en) * | 2015-06-17 | 2015-10-07 | 苏州华冲精密机械有限公司 | Novel clamp for machining thin-wall cylinder part |
-
2018
- 2018-05-29 CN CN201810531335.4A patent/CN108555799B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141513A (en) * | 2016-07-26 | 2016-11-23 | 中国重汽集团柳州运力专用汽车有限公司 | Multi-work piece assembly welding positioner and assembly welding method |
| CN207026992U (en) * | 2017-08-09 | 2018-02-23 | 斯图尔特针钉制品(郑州)有限公司 | A kind of frock for the drilling of combing roller copper ring |
| CN208323168U (en) * | 2018-05-29 | 2019-01-04 | 南京埃斯顿智能系统工程有限公司 | A kind of rod-type positioning tool of the plate depth of parallelism, concentricity |
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