CN214620922U - Rotor test fixture that beats - Google Patents
Rotor test fixture that beats Download PDFInfo
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- CN214620922U CN214620922U CN202120432846.8U CN202120432846U CN214620922U CN 214620922 U CN214620922 U CN 214620922U CN 202120432846 U CN202120432846 U CN 202120432846U CN 214620922 U CN214620922 U CN 214620922U
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- rotor
- positioning groove
- test fixture
- positioning
- fixing piece
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Abstract
The utility model discloses a rotor run-out test fixture, which comprises a base, a support component and a pressing piece, wherein the support component is arranged on the base, the support component is provided with a positioning groove for placing one end of a rotor to be tested, the positioning groove is provided with an inserting end and a positioning end, the width of the positioning groove is gradually expanded along the direction from the positioning end to the inserting end so as to adapt to the rotors to be tested with various sizes; the pressing piece is movably arranged on the support component and provided with a butt end which can movably extend into the positioning groove along the direction from the insertion end to the positioning end, and the butt end is used for pressing and fixing the rotor to be tested inserted into the positioning groove. The utility model discloses improved the structure of rotor test fixture that beats, improved the commonality of rotor test fixture that beats, improved the rotor precision of software testing that beats, this rotor test fixture that beats simple structure has reduced the cost of manufacturing.
Description
Technical Field
The utility model relates to a survey rotor frock clamp technical field that beats especially relates to a rotor test fixture that beats.
Background
The test jig of the existing tool for testing the rotor jump generally uses a ball bearing as a supporting part, one test jig corresponds to a rotor of one specification, the universality of the tool for testing the rotor jump is poor, and for small-size external rotor motor rotor assemblies and external rotor motor rotor assemblies with shorter shaft branches, the clamping stability of the test jig is poor, and the accuracy of the jump test is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at providing a rotor test fixture that beats aims at improving the commonality of rotor test fixture that beats to guarantee the steadiness of its fixed rotor, with the precision that promotes the rotor test that beats.
In order to achieve the above object, the utility model provides a rotor test fixture that beats, rotor test fixture that beats includes:
a base;
the bracket component is arranged on the base and is provided with a positioning groove for placing one end of the rotor to be tested, the positioning groove is provided with an inserting end and a positioning end, and the width of the positioning groove is gradually enlarged along the direction from the positioning end to the inserting end so as to be adapted to the rotors to be tested with various sizes; and
the pressing piece is movably arranged on the bracket component and provided with a butt end which can movably extend into the positioning groove along the direction from the insertion end to the positioning end, and the butt end is used for pressing and fixing a rotor to be tested inserted into the positioning groove.
In one embodiment, the bracket assembly comprises:
the positioning groove is concavely arranged on one side of the first fixing piece; and
and the second fixing piece is detachably arranged on the first fixing piece and covers the insertion end of the positioning groove.
In an embodiment, the second fixing member is provided with a position-avoiding groove corresponding to the positioning groove, and the width of the position-avoiding groove corresponding to the positioning groove in the same direction is greater than the width of the insertion end of the positioning groove.
In one embodiment, the pressing member is a spring jack screw with a steel ball.
In an embodiment, the pressing member includes an elastic plastic body and an abutting member partially embedded in the elastic plastic body and used for abutting against the rotor.
In one embodiment, the relative distance between one end of the spring top thread close to the first fixing piece and the surface wall of the first fixing piece is 0.96 mm;
when the spring jackscrew is in a natural state, the relative distance between the steel ball and the surface wall of the first fixing piece is 0.85 mm;
when the spring jackscrew is in a compressed state, the relative distance between the steel ball and the surface wall of the first fixing piece is 0.55 mm.
In an embodiment, a support rib is arranged in the positioning groove, and a V-shaped groove for supporting the rotor is arranged on the support rib, so that the width of the positioning groove gradually increases from the positioning end to the insertion end.
In an embodiment, the number of the supporting ribs is multiple, and the supporting ribs are distributed along the length direction of the positioning groove.
In one embodiment, the width of the notch of the V-shaped groove is 1.00-1.50 mm.
In an embodiment, the first fixing member is disposed in a semi-cylindrical shape, the second fixing member is disposed in an arched shape, and the length of the first fixing member is greater than that of the second fixing member.
The technical scheme of the utility model, because this rotor test fixture that beats includes the base, bracket component and compressing tightly, the bracket component is installed on the base, the bracket component has the constant head tank that the one end that supplies the examination rotor that awaits measuring was placed, the constant head tank has to insert end and location end, the width of constant head tank is the gradual expansion setting along location end to inserting the end direction, with the examination rotor that awaits measuring of the multiple size of adaptation, compress tightly a movable setting on the bracket component, compress tightly the piece and have along inserting the mobile butt end that stretches into in the constant head tank of end direction to location, the butt end is used for compressing tightly fixedly with the examination rotor that awaits measuring that inserts in the constant head tank, the commonality of rotor test fixture that beats has been improved, the steadiness of its fixed rotor has been guaranteed, and then the precision of rotor test that beats has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of the rotor runout testing tool of the present invention;
fig. 2 is a partial exploded view of an embodiment of the rotor runout testing tool of the present invention;
fig. 3 is an exploded view of an embodiment of the inventive rotor runout testing tool;
fig. 4 is a schematic structural diagram of the first fixing member in an embodiment of the rotor runout testing tool of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
210 | First fixed |
|
| 200 | |
220 | Second fixing |
|
| 300 | |
210a | Locating |
|
| 211 | |
| Avoiding groove | |
| 211a | V- |
400 | |
|
| 500 | |
10 | Rotor |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In some exemplary technologies, a test jig for testing a rotor jump tool adopts a ball bearing as a supporting part, one test jig corresponds to a rotor of one specification, the universality of the rotor jump tool is poor, and for a small-size external rotor motor rotor assembly and an external rotor motor rotor assembly with a shorter shaft branch, the clamping stability of the test jig is poor, and the jump test precision is low.
In order to improve the commonality of rotor test fixture that beats to guarantee its steadiness of fixing the rotor, with the precision that promotes the rotor test that beats, the utility model provides a rotor test fixture that beats is applicable to and beats the test to the pivot of different specifications, especially electric motor rotor, and here is not limited.
Referring to fig. 1 to 4, in an embodiment of the present invention, the rotor runout testing fixture includes a base 100, a bracket assembly 200 and a pressing member 300, the bracket assembly 200 is mounted on the base 100, the bracket assembly 200 has a positioning groove 210a for placing one end of the rotor 10 to be tested, the positioning groove 210a has an insertion end and a positioning end, the width of the positioning groove 210a is gradually increased along the direction from the positioning end to the insertion end to adapt to the rotors 10 to be tested with various sizes; the pressing member 300 is movably disposed on the bracket assembly 200, and the pressing member 300 has an abutting end movably extending into the positioning slot 210a along a direction from the insertion end to the positioning end, and the abutting end is used for pressing and fixing the rotor 10 to be tested inserted into the positioning slot 210 a.
The base 100 may be made of a metal or plastic plate, the base 100 and the bracket assembly 200 may be connected and fixed by the supporting pillar 400, the bracket assembly 200 may be formed by combining one or more fixing blocks or fixing plates, and the supporting pillar 400 and the bracket assembly 200 may be made of metal or plastic, which is not limited herein.
It should be noted that the size of the positioning groove 210a on the bracket assembly 200 can be designed to be adapted according to the specification of the commonly used electric motor rotor 10, and the divergent portion thereof can also be designed to be adapted to the outer diameter of the commonly used electric motor rotor 10, which is not limited herein.
In this embodiment, the pressing member 300 may be a spring jack with steel beads. Specifically, referring mainly to fig. 3, the position of the bracket assembly 200 corresponding to the spring jack screw may be provided with a screw hole adapted to the jack screw for screwing in the jack screw, the spring may be disposed on the jack screw or integrally formed with the jack screw, the steel ball is disposed in the mounting hole of the jack screw and abuts against one end of the spring, and the other end of the steel ball forms the aforementioned abutting end for abutting against the rotor 10 to be tested. It can be understood that in practical application, a tester can adjust the pressing force by adjusting the height of the spring top wire, so as to meet the pressing requirements of rotors 10 with various specifications.
Of course, in some application scenarios, the pressing member 300 may also adopt other elastic reset structures, the pressing member 300 may include an elastic plastic body and an abutting member partially embedded on the elastic plastic body and configured to abut against the rotor 10, and a free end of the abutting member forms the abutting end configured to abut against the rotor 10 to be tested.
It can be understood that, the present invention is provided by installing the bracket assembly 200 of the rotor runout test fixture on the base 100, the bracket assembly 200 has a positioning groove 210a for placing one end of the rotor 10 to be tested, the positioning groove 210a has an insertion end (i.e. the notch of the positioning groove 210) and a positioning end (i.e. the bottom of the positioning groove 210), the width of the positioning groove 210a is gradually increased from the positioning end to the insertion end, with the multiple size of the examination of adaptation awaits measuring rotor 10, compress tightly 300 activity and set up on bracket component 200, compress tightly 300 and have along inserting the end to the mobile butt end that stretches into in the locating slot 210a of locating end direction, the butt end is used for compressing tightly fixedly the examination of awaiting measuring rotor 10 that inserts in the locating slot 210a, has improved the commonality of rotor test fixture that beats, has guaranteed its steadiness of fixing rotor 10, and then has promoted the precision of rotor 10 test that beats.
In some embodiments, referring to fig. 3 and 4, the bracket assembly 200 may include a first fixing member 210 and a second fixing member 220, wherein a positioning groove 210a is recessed on one side of the first fixing member 210, and the second fixing member 220 is detachably mounted on the first fixing member 210 and covers an insertion end of the positioning groove 210 a. During testing, a tester can firstly lift the second fixing member 220, then place the rotor 10 to be tested into the positioning groove 210a, then cover the second fixing member 220, and tightly press the pressing member 300 against the rotor 10 to be tested.
Further, referring to fig. 3 and 4, the second fixing member 220 may have a position corresponding to the positioning groove 210a and a width of the position corresponding to the positioning groove 210a of the position avoiding groove 220a in the same direction is greater than that of the insertion end of the positioning groove 210 a. With this arrangement, the operational convenience of the run-out test of the rotor 10 can be improved.
In one embodiment, mainly referring to fig. 2 and 3, the pressing member 300 is a spring top wire with steel balls, and a relative distance between one end of the spring top wire close to the first fixing member 210 and the surface wall of the first fixing member 210 is 0.96 mm; when the spring jack screw is in a natural state (namely when the rotor 10 to be tested is not placed in the positioning groove 210 a), the relative distance between the steel ball and the surface wall of the first fixing piece 210 is 0.85 mm; when the spring jack is in a compressed state (i.e., when the rotor 10 to be tested is placed in the positioning groove 210a, the diameter of the rotor 10 to be tested is 0.3mm), the relative distance between the steel ball and the surface wall of the first fixing member 210 is 0.55 mm.
In this embodiment, the steel balls are forced to be pushed up by 0.3mm, and at this time, the rotor 10 is pressed downward by the steel balls under the action of the spring, so that the rotor 10 can be effectively fixed.
In some embodiments, referring mainly to fig. 4, a support rib 211 may be disposed in the positioning slot 210a, and a V-shaped groove 211a for supporting the rotor 10 is disposed on the support rib 211, so that the width of the positioning slot 210a is gradually increased from the positioning end to the insertion end. So configured, a variety of sizes of rotors 10 to be tested can be accommodated.
Further, the number of the supporting ribs 211 may be multiple, and the supporting ribs 211 are distributed along the length direction of the positioning groove 210a, and may be arranged at uniform intervals, or of course, may also be arranged at non-uniform intervals, and is not limited herein. The support ribs 211 may be disposed corresponding to the region of the pressing member 300, or may be distributed and arranged along the length direction of the entire positioning groove 210a, which is not limited herein.
In order to adapt to the rotating shaft with more specifications and improve the universality of the rotor run-out test tool, in some embodiments, the width of the notch of the V-shaped groove 211a can be 1.00-1.50 mm. Of course, in some other embodiments, the V-shaped groove 211a with other dimensions may be provided according to actual requirements, and is not limited herein.
In an embodiment, referring to fig. 3, the first fixing element 210 may be disposed in a semi-cylindrical shape, the second fixing element 220 is disposed in an arched shape, and the length of the first fixing element 210 is greater than the length of the second fixing element 220. So set up, reducible material quantity saves manufacturing cost, also can alleviate the weight of second mounting 220 simultaneously, makes things convenient for tester dismouting second mounting 220, has promoted the work efficiency that rotor 10 beated the test.
In this embodiment, referring to fig. 3, the first fixing element 210 and the second fixing element 220 can be fixed by screws. Of course, in some other embodiments, an assembly manner such as radial slot key interference fit fixing, pin riveting fixing, or axial dovetail slot interference fit may also be adopted, which is not limited herein.
In addition, in some embodiments, referring to fig. 1 to 3, the rotor runout testing tool may further include a protective cover 500, the protective cover 500 is covered on the free end of the bracket assembly 200 and covers the rotor 10 to be tested, and the exposed end of the rotor 10 may be inserted into the through hole of the protective cover 500 to further ensure the stability of fixing the rotor 10, so as to improve the accuracy of the rotor 10 runout testing.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a rotor test fixture that beats which characterized in that, rotor test fixture that beats includes:
a base;
the bracket component is arranged on the base and is provided with a positioning groove for placing one end of the rotor to be tested, the positioning groove is provided with an inserting end and a positioning end, and the width of the positioning groove is gradually enlarged along the direction from the positioning end to the inserting end so as to be adapted to the rotors to be tested with various sizes; and
the pressing piece is movably arranged on the bracket component and provided with a butt end which can movably extend into the positioning groove along the direction from the insertion end to the positioning end, and the butt end is used for pressing and fixing a rotor to be tested inserted into the positioning groove.
2. The rotor runout test fixture of claim 1, wherein the bracket assembly includes:
the positioning groove is concavely arranged on one side of the first fixing piece; and
and the second fixing piece is detachably arranged on the first fixing piece and covers the insertion end of the positioning groove.
3. The rotor runout testing tool according to claim 2, wherein a position of the second fixing member corresponding to the positioning groove is provided with a clearance groove, and the width of the clearance groove corresponding to the positioning groove in the same direction is larger than the width of the insertion end of the positioning groove.
4. The rotor runout test fixture of claim 2, wherein the pressing member is a spring jack screw with steel balls.
5. The tooling of claim 4, wherein the pressing member comprises an elastic plastic body and an abutting member partially embedded in the elastic plastic body and used for abutting against the rotor.
6. The rotor runout test fixture of claim 4, wherein the relative distance between one end of the spring jack screw close to the first fixing piece and the surface wall of the first fixing piece is 0.96 mm;
when the spring jackscrew is in a natural state, the relative distance between the steel ball and the surface wall of the first fixing piece is 0.85 mm;
when the spring jackscrew is in a compressed state, the relative distance between the steel ball and the surface wall of the first fixing piece is 0.55 mm.
7. The rotor runout testing tool according to claim 1, wherein a support rib is arranged in the positioning groove, and a V-shaped groove for supporting the rotor is formed in the support rib, so that the width of the positioning groove is gradually enlarged from the positioning end to the insertion end.
8. The rotor runout test fixture of claim 7, wherein the number of the support ribs is multiple, and the plurality of support ribs are distributed along the length direction of the positioning groove.
9. The rotor runout test fixture of claim 7, wherein the width of the notch of the V-shaped groove is 1.00-1.50 mm.
10. The rotor runout test fixture of any one of claims 2-6, wherein the first fixing piece is arranged in a semi-cylindrical shape, the second fixing piece is arranged in an arched shape, and the length of the first fixing piece is greater than that of the second fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120432846.8U CN214620922U (en) | 2021-02-26 | 2021-02-26 | Rotor test fixture that beats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120432846.8U CN214620922U (en) | 2021-02-26 | 2021-02-26 | Rotor test fixture that beats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214620922U true CN214620922U (en) | 2021-11-05 |
Family
ID=78391842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120432846.8U Active CN214620922U (en) | 2021-02-26 | 2021-02-26 | Rotor test fixture that beats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214620922U (en) |
-
2021
- 2021-02-26 CN CN202120432846.8U patent/CN214620922U/en active Active
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| GR01 | Patent grant |