A kind of long axis type part run-out measuring gauge
By designing a runout measuring fixture for long-axis parts with sliding components and adjusting rings, the problems of high measurement costs and inconvenience in moving existing technologies are solved, enabling fast and convenient runout measurement of long-axis parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FEIHUA AUTOMOTIVE PARTS CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-10
Smart Images

Figure CN224480102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of measuring tools and related instruments, and in particular to a measuring tool for measuring the runout of long shaft parts. Background Technology
[0002] Long shaft parts play a role in inputting and outputting power in automotive transmissions. Measuring the runout of shaft parts is an important process for inspecting the machining quality of shaft workpieces. Existing measurement methods can use coordinate measuring machines, laser pointers, runout meters, etc. to measure the runout of the outer circle. However, the above inspection tools have the following drawbacks: they are expensive, inconvenient to move, the measurement points are relatively fixed during the measurement process, and the measurement time is long, making it inconvenient for operators to perform rapid measurements on the production line. Utility Model Content
[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a runout measuring fixture for long shaft parts, comprising:
[0004] Base plate, first clamping assembly, second clamping assembly, measuring assembly, and sliding assembly;
[0005] The first clamping assembly and the second clamping assembly are mounted on both ends of the upper surface of the base plate;
[0006] The sliding assembly is mounted on one side of the upper surface of the base plate, and the measuring assembly is mounted on the sliding assembly. The sliding assembly can drive the measuring assembly to move along the length direction of the base plate.
[0007] The measuring assembly includes: a mounting post, a crossbar, a dial indicator, an adjusting ring, and a locking screw; the lower end of the mounting post is mounted on the sliding assembly, the adjusting ring is slidably sleeved on the mounting post, one end of the crossbar is mounted on the outer wall of the adjusting ring, the dial indicator is mounted on the other end of the crossbar, a locking hole is formed on the outer wall of the adjusting ring, one end of the locking screw is installed in the locking hole, and one end of the locking screw is in contact with or detached from the outer wall of the mounting post.
[0008] The aforementioned long shaft part runout measuring fixture includes a first clamping assembly comprising: a first fixed base, a first fixed center, a first fixed screw, and a first support block; the lower surfaces of the first fixed base and the first support block are both mounted on the upper surface of the base plate; the first fixed base has a first mounting hole with its axis arranged horizontally; one end of the first fixed center is slidably mounted in the first mounting hole; the upper surface of the first fixed base has a first fixing hole communicating with the first mounting hole; the lower end of the first fixed screw is mounted in the first fixing hole, and the lower end of the first fixed screw contacts or disengages from the outer wall of the first fixed center.
[0009] In the aforementioned long shaft type part runout measuring fixture, a first arc-shaped groove is formed on the upper surface of the first support block.
[0010] The aforementioned long-shaft part runout measuring fixture includes a second clamping assembly comprising: a second fixed base, a second fixed center, a quick clamp, a second fixing screw, and a second support block. The lower surfaces of the second fixed base and the second support block are both mounted on the upper surface of the base plate. The second fixed base has a second mounting hole with its axis horizontally aligned. One end of the second fixed center is slidably mounted within the second mounting hole. The upper surface of the second fixed base has a second fixing hole communicating with the second mounting hole. The lower end of the second fixing screw is mounted within the second fixing hole, and the lower end of the second fixing screw contacts or disengages from the outer wall of the second fixed center. The quick clamp extends into the second fixed base and is fixed to the second fixed center, and the quick clamp drives the second fixed center to move horizontally.
[0011] In the aforementioned long shaft type part runout measuring fixture, a second arc-shaped groove is formed on the upper surface of the second support block.
[0012] The aforementioned long shaft part runout measuring fixture includes a quick clamp comprising: a mounting sleeve, two support plates, a handle, and a connecting post; the mounting sleeve is mounted on one end of the second fixed base, one end of each of the two support plates is mounted on the outer wall of the mounting sleeve, one end of the connecting post passes through the mounting sleeve and is mounted on the second fixed center, one end of the handle is rotatably mounted on the other end of one of the support plates, and one end of the handle is movably connected to the other end of the connecting post, the handle driving the connecting post to move horizontally.
[0013] The aforementioned long shaft part runout measuring fixture includes a sliding assembly comprising a slide rail and a slider. The slide rail is mounted on the upper surface of the base plate, the slider is slidably mounted on the slide rail, and the lower end of the mounting post is mounted on the upper surface of the slider.
[0014] The positive effects of the above technical solution compared with the existing technology are:
[0015] By applying this utility model, a runout measuring fixture for long shaft parts is provided. The dial indicator can be moved by the sliding component, and the position of the dial indicator in the vertical direction can be adjusted by the adjustment ring. This allows for the rapid measurement of relevant data at different positions of the part to be measured, making the measurement convenient, fast, and improving measurement efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a runout measuring fixture for long shaft parts according to the present invention;
[0017] Figure 2 This is a front view of a runout measuring fixture for long shaft parts according to this utility model.
[0018] 1. Base plate; 2. Mounting column; 3. Crossbar; 4. Dial indicator; 5. Adjusting ring; 6. Locking screw; 7. First fixed seat; 8. First fixed center; 9. First fixed screw; 10. First support block; 11. Second fixed seat; 12. Second fixed center; 13. Quick clamp; 14. Second fixed screw; 15. Second support block; 16. Mounting sleeve; 17. Support plate; 18. Handle; 19. Slider; 20. Slide rail. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0020] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0021] like Figure 1and Figure 2 As shown, a preferred embodiment of a long shaft part runout measuring fixture is provided, comprising: a base plate 1, a first clamping assembly, a second clamping assembly, a measuring assembly, and a sliding assembly.
[0022] The first clamping assembly and the second clamping assembly are installed at both ends of the upper surface of the base plate 1; the sliding assembly is installed on one side of the upper surface of the base plate 1, and the measuring assembly is installed on the sliding assembly. The sliding assembly can drive the measuring assembly to move along the length direction of the base plate 1. The measuring assembly includes: a mounting post 2, a crossbar 3, a dial indicator 4, an adjusting ring 5, and a locking screw 6. The lower end of the mounting post 2 is installed on the sliding assembly, the adjusting ring 5 is slidably sleeved on the mounting post 2, one end of the crossbar 3 is installed on the outer wall of the adjusting ring 5, the dial indicator 4 is installed on the other end of the crossbar 3, a locking hole is opened on the outer wall of the adjusting ring 5, one end of the locking screw 6 is installed in the locking hole, and one end of the locking screw 6 is in contact with or detached from the outer wall of the mounting post 2.
[0023] In actual use, the two ends of the part to be tested are respectively installed on the first support block 10 and the second support block 15. Then, the first fixed tip 8 and the second fixed tip 12 are moved so that the first fixed tip 8 and the second fixed tip 12 clamp the part to be tested. Then, the first fixed screw 9 and the second fixed screw 14 are turned so that the first fixed screw 9 fixes the first fixed tip 8 and the second fixed screw 14 fixes the second fixed tip 12 to stabilize the part to be tested. Then, by moving the position of the adjusting ring 5 on the mounting post 2, when the measuring end of the dial indicator 4 contacts the part to be tested and the pointer of the dial indicator 4 swings half a circle, the part to be tested is rotated and the data of the dial indicator 4 is read. When it is necessary to detect relevant data at different positions of the part to be tested, the mounting post 2 can be moved to the relevant position by sliding the component.
[0024] Furthermore, several fixing holes can also be provided on the mounting column 2 along its length, and the locking screw 6 can be fixed and locked in the fixing holes.
[0025] Based on the above, this utility model also has the following embodiments:
[0026] Furthermore, a runout measuring fixture for long shaft parts includes a first clamping assembly comprising: a first fixed base 7, a first fixed tip 8, a first fixed screw 9, and a first support block 10; the lower surfaces of the first fixed base 7 and the first support block 10 are both mounted on the upper surface of the base plate 1; the first fixed base 7 has a first mounting hole with its axis arranged horizontally; one end of the first fixed tip 8 is slidably mounted in the first mounting hole; the upper surface of the first fixed base 7 has a first fixing hole communicating with the first mounting hole; the lower end of the first fixed screw 9 is mounted in the first fixing hole, and the lower end of the first fixed screw 9 contacts or disengages from the outer wall of the first fixed tip 8.
[0027] Furthermore, a runout measuring fixture for long-axis parts includes a first arc-shaped groove formed on the upper surface of a first support block 10. Specifically, the first support block 10 can support the part to be measured during measurement.
[0028] Furthermore, a runout measuring fixture for long shaft parts includes a second clamping assembly comprising: a second fixed base 11, a second fixed tip 12, a quick clamp 13, a second fixing screw 14, and a second support block 15. The lower surfaces of the second fixed base 11 and the second support block 15 are both mounted on the upper surface of the base plate 1. The second fixed base 11 has a second mounting hole with its axis arranged horizontally. One end of the second fixed tip 12 is slidably mounted in the second mounting hole. The upper surface of the second fixed base 11 has a second fixing hole that communicates with the second mounting hole. The lower end of the second fixing screw 14 is mounted in the second fixing hole, and the lower end of the second fixing screw 14 contacts or disengages from the outer wall of the second fixed tip 12. The quick clamp 13 extends into the second fixed base 11 and is mounted on the second fixed tip 12, and the quick clamp 13 drives the second fixed tip 12 to move horizontally. Furthermore, by adjusting the position of the first fixing tip 8 in the first mounting hole using the first fixing screw 9, and by adjusting the position of the second fixing tip 12 in the second mounting hole using the second fixing screw 14, it can be applied to parts of different lengths, which is convenient and quick.
[0029] Furthermore, in a runout measuring fixture for long-axis parts, a second arc-shaped groove is formed on the upper surface of the second support block 15. Furthermore, the first and second arc-shaped grooves prevent the part under test from shaking, making the measurement process more stable.
[0030] Furthermore, a runout measuring fixture for long-axis parts includes a quick clamp 13 comprising: a mounting sleeve 16, two support plates 17, a handle 18, and a connecting post. The mounting sleeve 16 is mounted on one end of a second fixed base 11. One end of each of the two support plates 17 is mounted on the outer wall of the mounting sleeve 16. One end of the connecting post passes through the mounting sleeve 16 and is mounted on a second fixed tip 12. One end of the handle 18 is rotatably mounted on the other end of one of the support plates 17, and one end of the handle 18 is movably connected to the other end of the connecting post. The handle 18 drives the connecting post to move horizontally. Specifically, the connecting post causes the second fixed tip 12 to move closer to or further away from the part to be measured, thus holding the part in place.
[0031] Furthermore, a runout measuring fixture for long-axis parts includes a sliding assembly comprising a slide rail 20 and a slider 19. The slide rail 20 is mounted on the upper surface of the base plate 1, and the slider 19 is slidably mounted on the slide rail 20. The lower end of the mounting post 2 is mounted on the upper surface of the slider 19. Further, it also includes a stabilizing screw. A through hole is formed on one side of the slider 19, and one end of the stabilizing screw is installed in the through hole. One end of the stabilizing screw contacts or disengages from the side wall of the slide rail 20, thereby facilitating the fixation of the slider 19 and preventing it from moving during measurement.
[0032] Furthermore, the diameters of the ends of the first fixing tip 8 and the second fixing tip 12 closest to the part to be tested are both reduced, allowing the first fixing tip 8 and the second fixing tip 12 to extend into the part to be tested and fix it. The outer walls of the first fixing tip 8 and the second fixing tip 12 may be provided with a number of locking holes, so that the first fixing screw 9 and the second fixing screw 14 are locked in the locking holes, thereby locking the first fixing tip 8 and the second fixing tip 12.
[0033] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A runout measuring fixture for long shaft parts, characterized in that, include: Base plate, first clamping assembly, second clamping assembly, measuring assembly, and sliding assembly; The first clamping assembly and the second clamping assembly are mounted on both ends of the upper surface of the base plate; The sliding assembly is mounted on one side of the upper surface of the base plate, and the measuring assembly is mounted on the sliding assembly. The sliding assembly can drive the measuring assembly to move along the length direction of the base plate. The measuring assembly includes: a mounting post, a crossbar, a dial indicator, an adjusting ring, and a locking screw; the lower end of the mounting post is mounted on the sliding assembly, the adjusting ring is slidably sleeved on the mounting post, one end of the crossbar is mounted on the outer wall of the adjusting ring, the dial indicator is mounted on the other end of the crossbar, a locking hole is formed on the outer wall of the adjusting ring, one end of the locking screw is installed in the locking hole, and one end of the locking screw is in contact with or detached from the outer wall of the mounting post.
2. The runout measuring fixture for long shaft parts according to claim 1, characterized in that, The first clamping assembly includes: a first fixed base, a first fixed tip, a first fixed screw, and a first support block; the lower surface of the first fixed base and the lower surface of the first support block are both mounted on the upper surface of the base plate; the first fixed base has a first mounting hole, the axis of the first mounting hole is set in the horizontal direction; one end of the first fixed tip is slidably mounted in the first mounting hole; the upper surface of the first fixed base has a first fixing hole, the first fixing hole communicates with the first mounting hole; the lower end of the first fixed screw is mounted in the first fixing hole, and the lower end of the first fixing screw contacts or disengages from the outer wall of the first fixed tip.
3. The runout measuring fixture for long shaft parts according to claim 2, characterized in that, A first arc-shaped groove is formed on the upper surface of the first support block.
4. The runout measuring fixture for long shaft parts according to claim 1, characterized in that, The second clamping assembly includes: a second fixed base, a second fixed tip, a quick clamp, a second fixing screw, and a second support block; the lower surfaces of the second fixed base and the second support block are both mounted on the upper surface of the base plate; the second fixed base has a second mounting hole with its axis arranged horizontally; one end of the second fixed tip is slidably mounted in the second mounting hole; the upper surface of the second fixed base has a second fixing hole communicating with the second mounting hole; the lower end of the second fixing screw is mounted in the second fixing hole, and the lower end of the second fixing screw contacts or disengages from the outer wall of the second fixed tip; the quick clamp extends into the second fixed base and is fixed to the second fixed tip; the quick clamp drives the second fixed tip to move horizontally.
5. The runout measuring fixture for long shaft parts according to claim 4, characterized in that, A second arc-shaped groove is formed on the upper surface of the second support block.
6. The runout measuring fixture for long shaft parts according to claim 4, characterized in that, The quick clamp includes: a mounting sleeve, two support plates, a handle, and a connecting post; the mounting sleeve is installed at one end of the second fixed base, one end of each of the two support plates is installed on the outer wall of the mounting sleeve, one end of the connecting post passes through the mounting sleeve and is installed on the second fixed center, one end of the handle is rotatably installed on the other end of one of the support plates, one end of the handle is movably connected to the other end of the connecting post, and the handle drives the connecting post to move horizontally.
7. The runout measuring fixture for long shaft parts according to claim 1, characterized in that, The sliding assembly includes a slide rail and a slider. The slide rail is mounted on the upper surface of the base plate, the slider is slidably mounted on the slide rail, and the lower end of the mounting post is mounted on the upper surface of the slider.