Differential cross-rod distance detection platform
The differential cross-bar distance testing table, which uses a moving support block and a spring, solves the problems of low efficiency and unstable accuracy of traditional manually operated mechanical measuring tools, and realizes high-precision batch testing and multi-specification adaptability, thereby improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional differential gear span measurement relies on manual operation of mechanical measuring tools, which is inefficient, has unstable accuracy, poor adaptability, and cannot meet the needs of high-precision batch testing.
The system employs a dynamic support block that engages with a gear under the action of a spring, causing the bracket and electronic dial indicator to slide. The reading changes through the contact between the stop block and the dial indicator needle. Combined with the push rod, the reading is adjusted to zero, achieving high-precision detection.
It improves testing efficiency and accuracy, meets the needs of high-precision batch testing, and is suitable for testing various specifications of differentials.
Smart Images
Figure CN224066089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece measurement technology, and in particular to a differential strut distance detection table. Background Technology
[0002] In the automotive manufacturing and machining industries, the differential is a critical component, and its precision is crucial to vehicle performance and stability. The differential strut distance is one of the important indicators for measuring differential precision; therefore, accurate measurement of the differential strut distance is essential. In practical applications, a differential strut distance testing bench typically requires the following technologies:
[0003] 1. Positioning mechanism: The specially designed positioning fixture can accurately fix the differential and ensure that the position of the differential is consistent during each test. For example, a positioning block that matches the outer contour of the differential is used to firmly position the differential on the fixture by means of mechanical clamping or hydraulic clamping.
[0004] 2. Measurement Mechanism: High-precision measuring probes or instruments, such as micrometers and coordinate measuring machines, are used to accurately measure the differential strut distance. These instruments can directly read or provide feedback of the strut distance value through electronic signals, providing accurate data support for quality control.
[0005] Traditional differential gear span measurement relies on manual operation of mechanical measuring tools (such as micrometers and plug gauges), which suffers from low efficiency, unstable accuracy, and poor adaptability, making it difficult to meet the needs of high-precision batch testing. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a differential gear crossbar distance testing platform, which solves the technical problems of low efficiency, unstable accuracy, and poor adaptability in traditional differential gear crossbar distance measurement, which relies on manual operation of mechanical measuring tools (such as micrometers and plug gauges), and is difficult to meet the technical requirements of high-precision batch testing.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A differential strut distance testing table includes a worktable, a fixed support block fixedly mounted on the worktable, a movable support block slidably mounted on the worktable, a push rod fixedly mounted on both the fixed support block and the movable support block, a bracket fixedly mounted on the side end of the movable support block, an electronic dial indicator fixedly mounted on the bracket, a stop block fixedly mounted on the worktable, a push rod rotatably mounted on the worktable, a spring mounted on the side end of the movable support block, and a mounting base fixedly mounted on the worktable.
[0009] Preferred: The bracket and push rod are slidably connected.
[0010] Preferably, the pointer of the electronic dial indicator is in contact with the stop block.
[0011] Preferably, the workbench is equipped with support legs fixedly installed at all four corners.
[0012] Preferred option: A protective shell is fixedly installed on the workbench.
[0013] Preferably, the protective shell has an observation port.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The moving support block will remain in contact with the other side of the gear under the elastic force of the spring. The moving support block will generate a certain displacement under the elastic force of the spring, that is, it will drive the bracket to slide. The bracket will drive the electronic micrometer to slide, and the stop block will contact the needle of the electronic micrometer. The sliding of the electronic micrometer will change the pressure on the needle, thereby changing the reading of the electronic micrometer. If the moving support block does not move under the elastic force of the spring, the reading of the electronic micrometer will be 0, indicating that the gear being measured is the same as the calibration value. If the moving support block moves under the elastic force of the spring, the electronic micrometer will display a reading 0, indicating that the gear being measured is different from the calibration value. This improves the detection efficiency and detection accuracy, and achieves the effect of meeting the needs of high-precision batch detection.
[0016] Second, by rotating the push rod, the bracket is pushed to slide, which in turn drives the moving support block and the electronic dial indicator to slide. The top rod on the moving support block is slid to the designated position, and then the reading of the electronic dial indicator is returned to zero. The calibration value can then be set, achieving the effect of testing various specifications. Attached Figure Description
[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0018] Figure 1 This is a structural diagram of the protective shell of this utility model;
[0019] Figure 2 This is a structural diagram of the bracket of this utility model;
[0020] Figure 3 This is a structural diagram of the workbench of this utility model;
[0021] Figure 4 This is a structural diagram of the push rod of this utility model.
[0022] Legend: 1. Workbench; 2. Fixed support block; 3. Moving support block; 4. Push rod; 5. Bracket; 6. Electronic dial indicator; 7. Abutment block; 8. Push rod; 9. Spring; 11. Mounting base; 12. Support leg; 13. Protective shell; 14. Observation port. Detailed Implementation
[0023] This application provides a differential gear pitch measurement bench, effectively solving the problems of low efficiency, unstable accuracy, and poor adaptability associated with traditional differential gear pitch measurement methods that rely on manual operation of mechanical measuring tools (such as micrometers and plug gauges), making it difficult to meet the technical requirements of high-precision batch testing. The moving support block will remain in contact with the other side of the gear under the elastic force of the spring. The moving support block will also undergo a certain displacement under the spring force, causing the bracket to slide. The bracket will then cause the electronic micrometer to slide, and the stop block will contact the pointer of the electronic micrometer. The sliding of the electronic micrometer will change the pressure on the pointer, thereby affecting the reading of the electronic micrometer. The change in measurement results in the following: If the moving support block does not move under the spring force, the electronic dial indicator will display a reading indicating that the gear being measured is the same as the calibration value. If the moving support block moves under the spring force, the electronic dial indicator will display a reading indicating that the gear being measured is different from the calibration value. This improves detection efficiency and accuracy, achieving the effect of meeting the needs of high-precision batch testing. By rotating the push rod, the bracket is pushed to slide, which in turn drives the moving support block and the electronic dial indicator to slide. The push rod on the moving support block is slid to the designated position, and then the reading of the electronic dial indicator is reset to zero, allowing the calibration value to be set. This achieves the effect of being suitable for testing various specifications.
[0024] Example
[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problems of low efficiency, unstable accuracy, and poor adaptability in traditional differential gear span measurement, which relies on manual operation of mechanical measuring tools (such as micrometers and plug gauges), and is difficult to meet the technical requirements of high-precision batch testing. The overall idea is as follows:
[0026] To address the problems existing in the prior art, this utility model provides a differential strut distance testing platform, including a workbench 1, a fixed support block 2 fixedly installed on the workbench 1, a movable support block 3 slidably installed on the workbench 1, a top rod 4 fixedly installed on both the fixed support block 2 and the movable support block 3, and a bracket 5 fixedly installed on the side end of the movable support block 3.
[0027] An electronic dial indicator 6 is fixedly installed on the bracket 5, a stop block 7 is fixedly installed on the worktable 1, a push rod 8 is rotatably installed on the worktable 1, a spring 9 is installed on the side end of the moving support block 3, and a mounting base 11 is fixedly installed on the worktable 1.
[0028] The bracket 5 and the push rod 8 are slidably connected. The needle of the electronic micrometer 6 is in contact with the stop block 7. Support legs 12 are fixedly installed at the four corners of the workbench 1. A protective shell 13 is fixedly installed on the workbench 1. An observation port 14 is opened on the protective shell 13.
[0029] Workbench 1: As the basic support structure of the entire differential crossbar distance testing table, it provides an installation platform for components such as fixed support block 2, moving support block 3, stop block 7, push rod 8, and mounting base 11, ensuring the relative positional relationship between the components. The support legs 12 fixedly installed at its four corners keep the workbench 1 in a stable position, ensuring the stability of the measurement process. In addition, a protective shell 13 is also fixedly installed on the workbench 1 to protect the internal measurement structure.
[0030] Fixed support block 2: It is fixedly installed on the workbench 1. The push rod 4 on it is used to abut against one side of the differential gear, providing a fixed support point for the gear and ensuring that the gear has a stable reference position during the measurement process.
[0031] Moving support block 3: It can be slidably installed on the workbench 1. The push rod 4 on its side end cooperates with the push rod 4 on the fixed support block 2 to abut against the differential gear from the other side. Under the elastic force of the spring 9, it can generate corresponding displacement according to the different gear size, thereby driving the bracket 5 connected to it to slide, so as to reflect the difference between the gear size and the calibration value.
[0032] Top rod 4: It is fixedly installed on the fixed support block 2 and the moving support block 3, and directly contacts the differential gear. It is used to support and position the gear, ensuring that the gear is in the correct position during measurement, and making it easy to detect the gear size by the displacement change of the moving support block 3.
[0033] Bracket 5: Fixed to the side of the movable support block 3, it connects the movable support block 3 and the electronic dial indicator 6, so that the displacement of the movable support block 3 can be transmitted to the electronic dial indicator 6. On the other hand, it is slidably connected to the push rod 8. Under the push of the push rod 8, the movable support block 3 and the electronic dial indicator 6 can slide together to set the calibration value.
[0034] Electronic micrometer 6: Mounted on bracket 5, the needle contacts the stop block 7, converting the displacement of the moving support block 3 caused by the spring force into a change in the pressure of the needle, which is then displayed as a reading. This visually reflects the difference between the measured differential gear and the calibrated value, thus enabling the detection of the differential gear straddle distance.
[0035] Abutment 7: Fixedly installed on the workbench 1, in contact with the needle of the electronic micrometer 6, providing a relatively fixed abutment point for the needle, so that the electronic micrometer 6 can accurately display the displacement of the moving support block 3 by the change in pressure between the needle and abutment 7, thereby reflecting the change in gear size;
[0036] Push rod 8: Rotatably mounted on the workbench 1. By rotating push rod 8, the bracket 5 that is slidably connected to it can be pushed, thereby driving the moving support block 3 and the electronic dial indicator 6 to slide, so as to adjust the position of the moving support block 3, so as to set the reading of the electronic dial indicator 6 to zero and complete the setting of the calibration value.
[0037] Spring 9: Installed on the side of the moving support block 3, it provides elastic force to the moving support block 3 so that it can fit tightly against the other side of the differential gear. When the gear size is different from the calibration value, it produces a corresponding displacement, thereby triggering the change of the reading of the electronic micrometer 6. It is a key elastic element for realizing the measurement function.
[0038] Mounting bracket 11: Fixedly mounted on the workbench 1, used to mount the differential gear, providing a mounting position for the gear, so that the gear has an accurate placement reference during the measurement process;
[0039] Support legs 12: Fixed at the four corners of the worktable 1, supporting the entire worktable 1 and keeping it stable during use to avoid affecting the measurement accuracy due to the shaking of the worktable;
[0040] Protective housing 13: It is fixedly installed on the workbench 1 to protect the measuring components on the workbench 1, prevent external factors from damaging the measuring structure, and extend the service life of the gauge;
[0041] Observation port 14: Located on the protective housing 13, it allows operators to easily observe the reading of the electronic dial gauge 6.
[0042] Working principle:
[0043] The first step is to place the differential gear onto the mounting base 11 during use. At this time, the push rod 4 on the fixed support block 2 will abut against one side of the gear, and the moving support block 3 will remain in contact with the other side of the gear under the elastic force of the spring 9. The moving support block 3 will produce a certain displacement under the elastic force of the spring 9, that is, it will drive the bracket 5 to slide. The bracket 5 will drive the electronic micrometer 6 to slide, and the abutment 7 will contact the needle of the electronic micrometer 6. The sliding of the electronic micrometer 6 will change the pressure on the needle, thereby changing the reading of the electronic micrometer 6. If the moving support block 3 does not move under the elastic force of the spring 9, the reading of the electronic micrometer 6 will be 0, indicating that the gear being measured is the same as the calibration value. If the moving support block 3 moves under the elastic force of the spring 9, the electronic micrometer 6 will display a reading, indicating that the gear being measured is different from the calibration value.
[0044] The second step is to rotate the push rod 8 to push the bracket 5 to slide. The bracket 5 will then drive the moving support block 3 and the electronic dial indicator 6 to slide. Slide the top rod 4 on the moving support block 3 to the designated position, and then reset the reading of the electronic dial indicator 6 to zero. This will allow you to set the calibration value.
[0045] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A differential cross-bar distance detection station comprising a worktable (1), characterized in that, The workbench (1) is fixedly installed with a fixed supporting block (2), and is slidably installed with a movable supporting block (3), the fixed supporting block (2) and the movable supporting block (3) are both fixedly installed with a top rod (4), the side end of the movable supporting block (3) is fixedly installed with a support (5), the support (5) is fixedly installed with an electronic micrometer (6), the workbench (1) is fixedly installed with a resisting block (7), the workbench (1) is rotatably installed with a push rod (8), the side end of the movable supporting block (3) is installed with a spring (9), and the workbench (1) is fixedly installed with a mounting seat (11).
2. A differential cross-bar distance detection station as claimed in claim 1, characterized in that The support (5) and the push rod (8) are slidably connected.
3. A differential cross web gap detection station as described in claim 1, wherein, The hands of the electronic micrometer (6) are in contact with the resisting block (7).
4. A differential cross web gap detection station as described in claim 1, wherein, The four corners of the workbench (1) are all fixedly installed with supporting legs (12).
5. A differential cross web gap detection station as described in claim 1 wherein, The workbench (1) is fixedly installed with a protective shell (13).
6. A differential cross web gap detection station as described in claim 5, wherein, An observation opening (14) is formed in the protective shell (13).