CN220583722U - Special fixture based on centrifugal acceleration testing machine - Google Patents
Special fixture based on centrifugal acceleration testing machine Download PDFInfo
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- CN220583722U CN220583722U CN202322297876.4U CN202322297876U CN220583722U CN 220583722 U CN220583722 U CN 220583722U CN 202322297876 U CN202322297876 U CN 202322297876U CN 220583722 U CN220583722 U CN 220583722U
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- clamping block
- disc
- groove
- testing machine
- special fixture
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000001133 acceleration Effects 0.000 title claims abstract description 25
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the technical field of test fixtures, in particular to a special fixture based on a centrifugal acceleration testing machine, which comprises: the center of the master disc is provided with a through shaft hole, the master disc is connected to the top end of the main shaft of the centrifugal machine through the shaft hole, and a plurality of mounting grooves are circumferentially distributed on the shaft hole of the top ring of the master disc; the split sub-disc is arranged in a plurality of ways and is movably embedded in each mounting groove, and each split sub-disc is internally provided with a fixing groove which is matched with a device to be tested. The utility model provides a special fixture based on a centrifugal acceleration testing machine, which is used for protecting a device frame and a lead from deformation and fracture when being subjected to a high-stress test, so that the constant acceleration testing efficiency of an operator is improved, and the accuracy and the reliability of the test are ensured.
Description
Technical Field
The utility model relates to the technical field of test fixtures, in particular to a special fixture based on a centrifugal acceleration testing machine.
Background
The centrifugal acceleration tester is a test device for simulating the centrifugal force to which an object is subjected in a real environment. The device simulates the acceleration environment of an object under the conditions of high-speed rotation, acceleration or flight and the like by rotating the object and applying centrifugal force. The centrifugal acceleration testing machine is widely applied to the fields of aerospace, automobiles, electronics, military and the like, and is used for testing and evaluating the performance and reliability of an object under a high-speed motion or vibration environment. The special CQFP-52 clamp is designed and processed according to the size specification of the device, so the clamp has the characteristics of convenient use, high reliability and poor universality.
Disclosure of Invention
The utility model provides a special fixture based on a centrifugal acceleration testing machine, which is used for protecting a device frame and a lead from deformation and fracture when being subjected to a high-stress test, so that the constant acceleration testing efficiency of an operator is improved, and the accuracy and the reliability of the test are ensured.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a special fixture for centrifugal acceleration-based testing machine, comprising: the center of the master disc is provided with a through shaft hole, the master disc is connected to the top end of the main shaft of the centrifugal machine through the shaft hole, and a plurality of mounting grooves are circumferentially distributed on the shaft hole of the top ring of the master disc; the split sub-disc is arranged in a plurality of ways and is movably embedded in each mounting groove, and each split sub-disc is internally provided with a fixing groove which is matched with a device to be tested.
Preferably, each split sub-disc is formed by combining a first clamping block and a second clamping block, an outer groove is formed in one side of the first clamping block corresponding to the second clamping block, the outer groove is matched with the outline of the outer frame of the device to be tested, an inner groove is formed in the center of the outer groove, and the inner groove is matched with the core outline of the device to be tested.
Preferably, the first clamping block is provided with positioning grooves corresponding to the top and the bottom of one side of the second clamping block, and the second clamping block is provided with positioning convex strips corresponding to the positioning grooves.
Preferably, a counterweight groove is arranged on one side of the second clamping block away from the first clamping block; the counter weight groove is movably embedded with a counter weight block.
The utility model has the beneficial effects that: the device is designed for the component with the metal frame, the clamping difficulty of operators is reduced during the test, the reliability of the clamp is improved, the scratch and abrasion to the surface of the component are reduced, the deformation and fracture of the component frame and the lead are prevented during the high-stress test, the constant acceleration test efficiency of the operators is improved, and the accuracy and the reliability of the test are ensured. Meanwhile, the cost of a laboratory constant acceleration test is reduced, the maintenance is convenient, the reliability is high, the requirements of domestic component HKA22040 packaging are met, and the rigidity strength meets the requirements under 30000g acceleration.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a device under test according to the present utility model;
fig. 3 is a sectional view of the split master disc structure of the present utility model.
In the figure: 1. a master disk; 2. a mounting groove; 3. a split sub-disc; 4. a device under test; 5. a first clamping block; 6. a second clamping block; 7. an outer groove; 8. an inner tank; 9. a positioning groove; 10. positioning convex strips; 11. and a counterweight groove.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
According to the figures 1, 2 and 3, a special clamp for a centrifugal acceleration testing machine comprises: the centrifugal machine comprises a main disc 1, wherein a through shaft hole is formed in the center of the main disc 1 and is connected to the top end of a main shaft of the centrifugal machine through the shaft hole, and a plurality of mounting grooves 2 are circumferentially distributed on the shaft hole of the top ring of the main disc 1; the split sub-discs 3 are arranged in a plurality of ways, the split sub-discs 3 are movably embedded in the mounting grooves 2 one by one, fixing grooves are respectively formed in the split sub-discs 3, and the fixing grooves are matched with the to-be-tested devices 4.
Each split sub-disc 3 is formed by combining a first clamping block 5 and a second clamping block 6, an outer groove 7 is formed in one side of the first clamping block 5 corresponding to the second clamping block 6, the outer groove 7 is matched with the outline of the outer frame of the device 4 to be tested, an inner groove 8 is formed in the center of the outer groove 7, the inner groove 8 is matched with the outline of the core of the device 4 to be tested, and the inner groove 8 and the outer groove 7 form the mounting groove 2.
The device to be tested 4 with the metal frame is designed, clamping difficulty of operators is reduced during testing, reliability of the clamp is improved, scratch and abrasion to the surface of the component are reduced, the device frame and the lead are protected from deformation and fracture during high-stress testing, constant acceleration testing efficiency of the operators is improved, and accuracy and reliability of testing are ensured. Meanwhile, the cost of a constant acceleration test in a laboratory is reduced, the maintenance is convenient, and the reliability is high. In the test process, the devices 4 to be tested are fixed in the split sub-discs 3 one by one, and each split sub-disc 3 is respectively placed in each mounting groove 2 of the master disc 1, so that the acceleration test is completed by starting the centrifugal machine. The fixture also meets the requirements of domestic component HKA22040 encapsulation, and tests prove that the rigidity strength meets the requirements under 30000g acceleration.
In addition, the top and the bottom of the first clamping block 5 corresponding to one side of the second clamping block 6 are respectively provided with a positioning groove 9, and the second clamping block 6 corresponding to the positioning groove 9 is provided with a positioning convex strip 10. Through the cooperation of constant head tank 9 and location sand grip 10, guaranteed the combination stability of first clamp splice 5 and second clamp splice 6, avoid causing vibration wearing and tearing to device under test 4.
A counterweight groove 11 is formed in one side, away from the first clamping block 5, of the second clamping block 6; the counterweight block 11 is movably embedded in the counterweight groove. The seed matching block can replace the device 4 to be tested, so that the working balance of the centrifugal machine is ensured.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a special fixture based on centrifugal acceleration testing machine which characterized in that includes:
the centrifugal machine comprises a main shaft, a main disc (1), a plurality of mounting grooves (2) and a plurality of fixing grooves, wherein the center of the main disc (1) is provided with a through shaft hole, the through shaft hole is connected to the top end of the main shaft of the centrifugal machine, and the plurality of mounting grooves (2) are circumferentially distributed on the top ring of the main disc (1);
the split sub-disc (3) is arranged in a plurality of ways, the split sub-discs (3) are movably embedded in the mounting grooves (2) one by one, fixing grooves are formed in the split sub-discs (3) respectively, and the fixing grooves are matched with the to-be-detected devices (4).
2. The centrifugal acceleration testing machine-based special fixture according to claim 1, wherein: each split sub-disc (3) is formed by combining a first clamping block (5) and a second clamping block (6), an outer groove (7) is formed in one side of the first clamping block (5) corresponding to the second clamping block (6), the outer groove (7) is matched with the outline of an outer frame of a device to be tested (4), an inner groove (8) is formed in the center of the outer groove (7), and the inner groove (8) is matched with the outline of the core of the device to be tested (4).
3. The centrifugal acceleration testing machine-based special fixture according to claim 2, wherein: the top and the bottom of one side of the first clamping block (5) corresponding to the second clamping block (6) are respectively provided with a positioning groove (9), and the second clamping block (6) corresponding to the positioning groove (9) is provided with a positioning convex strip (10).
4. A special fixture for a centrifugal acceleration-based testing machine according to claim 3, characterized in that: a counterweight groove (11) is formed in one side, far away from the first clamping block (5), of the second clamping block (6); the counterweight tank (11) is internally and movably embedded with a counterweight block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297876.4U CN220583722U (en) | 2023-08-25 | 2023-08-25 | Special fixture based on centrifugal acceleration testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297876.4U CN220583722U (en) | 2023-08-25 | 2023-08-25 | Special fixture based on centrifugal acceleration testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583722U true CN220583722U (en) | 2024-03-12 |
Family
ID=90116850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322297876.4U Active CN220583722U (en) | 2023-08-25 | 2023-08-25 | Special fixture based on centrifugal acceleration testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583722U (en) |
-
2023
- 2023-08-25 CN CN202322297876.4U patent/CN220583722U/en active Active
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