Jumping test fixture for motor shaft
By designing a motor shaft jump test fixture including a bracket, positioning component, limiting component and dial meter, the motor shaft jump test fixture in the prior art is solved, and the motor shaft jump test fixture is complex, inconvenient and expensive, and convenient and high-precision jump test of the motor shaft is achieved.
Patent Information
- Application Number
- CN202422245088.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing motor shaft jump degree detection fixtures have problems such as complex structure, inconvenient operation and expensive.
A motor shaft jump test fixture including a bracket, a positioning assembly, a limit assembly and a dial meter was designed. The fixture uses ceramic rods and limiting parts to achieve precise positioning and jumping test of the motor shaft by setting positioning components, limiting components and dials on the bracket.
The motor shaft has achieved a jump test with simple structure, stable and reliable performance, convenient operation and high measurement accuracy, and overcomes the shortcomings of the existing technology.
Smart Images
Figure CN223005461U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a motor shaft, in particular to a runout test fixture for a motor shaft. Background Art
[0002] A micro shaft is a relatively small and high-precision shaft part, which can also be called a precision shaft, a small shaft, a shaft core, a rotor shaft, a pin, a rivet, a guide rod, etc. Micro shafts are used in many industries, such as the rotating shafts in motors, printers, copiers, and scanners. With the progress and development of society and technology, there are more and more various types of mechanical equipment, with more powerful functions and higher automation levels. Correspondingly, the more powerful the mechanical equipment is, the higher the dimensional accuracy requirements for mechanical parts are. As an indispensable part in industrial machinery, the micro shaft plays a very important role in the functions, service life, and processing accuracy of mechanical equipment. For example, at present, the runout detection of the motor shaft is completed by using a detection fixture. However, the existing motor detection fixtures still have the defects of complex structure, inconvenient operation, and high price. Summary of the Invention
[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a runout test fixture for a motor shaft with a simple structure, stable and reliable performance, convenient operation, and high measurement accuracy.
[0004] To achieve the above purpose, the utility model adopts a runout test fixture for a motor shaft, which includes a bracket, two sets of positioning components respectively arranged on the bracket and used for placing the motor shaft, a limit component arranged on the bracket corresponding to one side of the two sets of positioning components, and a dial indicator arranged on the bracket corresponding to the other side of the two sets of positioning components. The limit component includes a limit block arranged on the bracket and a limiting member rotatably arranged on the limit block and in limit cooperation with the motor shaft. The positioning component includes a positioning block slidably arranged on the bracket and two ceramic rods. A V-shaped groove is arranged on the positioning block, and the two ceramic rods are symmetrically arranged in the V-shaped groove, and a positioning clamping cavity for placing the motor shaft is formed between the two ceramic rods. The test pointer of the dial indicator abuts against the motor shaft.
[0005] The beneficial effects of the above structure are as follows: Two ceramic rods matched with the motor shaft are arranged in the V-shaped groove of the positioning block, and the motor shaft is placed on the two ceramic rods, so as to ensure that the motor shaft can rotate stably and reliably on the two ceramic rods, thus facilitating the runout test of the motor shaft. During the test, the motor shaft is placed on the ceramic rods of the positioning component, one end of the motor shaft is abutted against the limit component, the test needle of the dial indicator is abutted against the other end of the motor shaft, the motor shaft is rotated, and then the dial indicator is observed to detect the runout of the motor shaft, and the operation is more convenient. Therefore, the runout test fixture for the motor shaft has the advantages of simple structure, stable and reliable performance, convenient operation, and high measurement accuracy.
[0006] Specifically, two clamping grooves that cooperate with two ceramic rods are symmetrically arranged in the V-shaped groove of the positioning block. The two ceramic rods are respectively clamped in the two clamping grooves, forming a clamping fit between the two ceramic rods and the positioning block. The ceramic rods are clamped in the clamping grooves, which facilitates the assembly of the positioning block and the ceramic rods, and the assembly efficiency is higher.
[0007] Specifically, one end of the limiting member has a screw portion connected to the limiting block, and the other end of the limiting member has a disc portion that abuts against one end of the motor shaft. The limiting member is connected to the limiting block through the screw portion, which facilitates the assembly of the limiting member and the limiting block and the position adjustment of the limiting member. Moreover, the limiting member cooperates with the motor shaft through the disc portion, which can ensure that the limiting member can be reliably restricted at one end of the motor shaft, thus being beneficial to improving the working reliability of the runout test fixture for the motor shaft.
[0008] Specifically, a sliding hole is provided on the bracket corresponding to the positioning block. One end of the positioning block has a sliding block inserted into the sliding hole, and a locking bolt that cooperates with the bracket is provided on the sliding block. The sliding block of the limiting block is slidably arranged in the sliding hole of the bracket, which facilitates the position adjustment of the positioning block, thus facilitating the operation of the detection personnel and being beneficial to improving the detection efficiency.
[0009] Specifically, a slider that cooperates with the dial indicator is provided on the bracket. The dial indicator is arranged on the slider. An adjustment hole that cooperates with the slider is provided on the bracket. One end of the slider has an adjustment block inserted into the adjustment hole, and a positioning bolt that cooperates with the bracket is provided on the adjustment block. The dial indicator is arranged on the slider. During operation, by loosening or tightening the positioning bolt, the position of the slider can be adjusted, thus facilitating the operation of the detection personnel. Description of the Drawings
[0010] Figure 1 It is a perspective view of an embodiment of the present invention.
[0011] Figure 2 It is a front view of an embodiment of the present invention.
[0012] Figure 3 It is a top view of an embodiment of the present invention. Detailed Embodiment
[0013] Such as Figures 1 to 3As shown in the figure, an embodiment of the utility model is a runout test fixture for a motor shaft, which includes a bracket 10, two sets of positioning components 20 respectively arranged on the bracket 10 and used for placing the motor shaft 11, a limit component 30 arranged on the bracket 10 at one side corresponding to the two sets of positioning components 20, and a dial indicator 12 arranged on the bracket 10 at the other side corresponding to the two sets of positioning components 20. The limit component 30 includes a limit block 31 arranged on the bracket 10 and a limit member 32 rotatably arranged on the limit block 31 and in limit cooperation with the motor shaft 11. The positioning component 20 includes a positioning block 21 slidably arranged on the bracket 10 and two ceramic rods 22. A V-shaped groove 211 is arranged on the positioning block 21. The two ceramic rods 22 are symmetrically arranged in the V-shaped groove 211, and a positioning clamping cavity 221 for placing the motor shaft 11 is formed between the two ceramic rods 22. The test pointer 121 of the dial indicator 12 abuts against the motor shaft 11. Two clamping grooves 212 matched with the two ceramic rods 22 are symmetrically arranged in the V-shaped groove 211 of the positioning block 21. The two ceramic rods 22 are respectively clamped in the two clamping grooves 212, and a clamping cooperation between the two ceramic rods 22 and the positioning block 21 is formed. The ceramic rods are clamped in the clamping grooves, which is convenient for the assembly of the positioning block and the ceramic rods, and the assembly efficiency is higher. One end of the limit member 32 has a screw rod portion 321 connected to the limit block 31, and the other end of the limit member 32 has a disc portion 322 abuting against one end of the motor shaft 11. The limit member is connected to the limit block through the screw rod portion, which is convenient for the assembly of the limit member and the limit block and the position adjustment of the limit member. And the limit member is matched with the motor shaft through the disc portion, so as to ensure that the limit member can reliably limit one end of the motor shaft, which is beneficial to improving the working reliability of the runout test fixture for the motor shaft. A sliding hole 101 is arranged on the bracket 10 corresponding to the positioning block 21. One end of the positioning block 21 has a sliding block 213 inserted into the sliding hole 101, and a locking bolt 214 matched with the bracket 10 is arranged on the sliding block 213. The sliding block of the limit block is slidably arranged in the sliding hole of the bracket, which is convenient for the position adjustment of the positioning block, thus facilitating the operation of the detection personnel and being beneficial to improving the detection efficiency.
[0014] As Figure 1 and 3 shown in the figure, a slider 13 matched with the dial indicator 12 is arranged on the bracket 10. The dial indicator 12 is arranged on the slider 13. An adjustment hole 102 matched with the slider 13 is arranged on the bracket 10. One end of the slider 13 has an adjustment block 131 inserted into the adjustment hole 102, and a positioning bolt 14 matched with the bracket 10 is arranged on the adjustment block 131. The dial indicator is arranged on the slider. During operation, by loosening or tightening the positioning bolt, the position of the slider can be adjusted, thus facilitating the operation of the detection personnel.
[0015] There are two ceramic rods that match the motor shaft arranged in the V-shaped groove of the positioning block. The motor shaft is placed on the two ceramic rods, which can ensure that the motor shaft can rotate smoothly and reliably on the two ceramic rods, facilitating the runout test of the motor shaft. During the test, place the motor shaft on the ceramic rods of the positioning component, then abut one end of the motor shaft against the limiting component, and abut the test probe of the dial indicator against the other end of the motor shaft. Rotate the motor shaft, and then observe the dial indicator to detect the runout of the motor shaft, making the operation more convenient. Therefore, the runout test fixture for the motor shaft has the advantages of simple structure, stable and reliable performance, convenient operation, and high measurement accuracy.
Claims
1. A motor shaft runout test fixture, characterized in that: It includes a bracket, two groups of positioning components respectively arranged on the bracket and used to place the motor shaft, a limit component arranged on the bracket at one side of the two groups of positioning components, and a micrometer arranged on the bracket at the other side of the two groups of positioning components. The limit component includes a limit block arranged on the bracket, a limit piece rotatably arranged on the limit block and matched with the motor shaft limit. The positioning component includes a positioning block slidably arranged on the bracket and two ceramic rods. The positioning block is provided with a V-shaped groove. The two ceramic rods are symmetrically arranged in the V-shaped groove, and a positioning clamping cavity for placing the motor shaft is formed between the two ceramic rods. The test pointer of the micrometer contacts the motor shaft.
2. The motor shaft runout test fixture according to claim 1, characterized in that: Two clamping grooves matching with two ceramic rods are symmetrically arranged in the V-shaped groove of the positioning block. The two ceramic rods are respectively clamped in the two clamping grooves to form a clamping fit between the two ceramic rods and the positioning block.
3. The motor shaft runout test fixture according to claim 1 or 2, characterized in that: One end of the limiting member is provided with a screw portion connected to the limiting block, and the other end of the limiting member is provided with a disc portion abutting against one end of the motor shaft.
4. The motor shaft runout test fixture according to claim 1 or 2, characterized in that: A sliding hole is arranged on the bracket corresponding to the positioning block, one end of the positioning block has a sliding block inserted into the sliding hole, and a locking bolt matched with the bracket is arranged on the sliding block.
5. The motor shaft runout test fixture according to claim 1 or 2, characterized in that: The bracket is provided with a slider matching with the micrometer, the micrometer is arranged on the slider, the bracket is provided with an adjustment hole matching with the slider, one end of the slider has an adjustment block inserted in the adjustment hole, and the adjustment block is provided with a positioning bolt matching with the bracket.