A length detection device for metrological detection

The design of quick probe switching, aided by mounting components and a positioning laser indicator, solves the problem of cumbersome probe replacement in existing technologies, and improves the efficiency and accuracy of length detection.

CN224353737UActive Publication Date: 2026-06-12QINGDAO INST OF METROLOGY TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO INST OF METROLOGY TECH
Filing Date
2025-05-21
Publication Date
2026-06-12

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Abstract

The utility model discloses a length detection device for measurement and detection, including platform, five -axis workstation, tailstock, measurement seat, installation component and a plurality of measuring heads. Installation component slidingly connects on the measurement seat or tailstock, is equipped with a plurality of installation seat for installing measuring head on it, adjusts the position of installation component through the adjusting bolt, makes corresponding measuring head move to the top of five -axis workstation, does not need to dismantle and replace measuring head, has simplified the operation procedure, has improved the measurement efficiency. The utility model is suitable for the measurement of various measuring tools, has simple operation, measurement accurate and the advantages such as.
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Description

Technical Field

[0001] This utility model relates to the field of metrology and testing equipment technology, specifically to a length detection device for metrology and testing. Background Technology

[0002] Existing length measuring devices, also known as length gauges, require frequent probe changes when measuring different gauges (such as gauge blocks and thread plug gauges). Traditional probes are fixed by two staggered 90° internal hexagonal pins, requiring repeated tightening with a hex wrench during disassembly, which is cumbersome and prone to pin wear or loss. Furthermore, frequent disassembly can affect the probe's positioning accuracy. Therefore, there is an urgent need for a device that allows for rapid probe switching without disassembly, thereby improving measurement efficiency and ensuring accuracy. Utility Model Content

[0003] In view of the problems and shortcomings of the existing technology, this utility model provides a length detection device for metrological testing.

[0004] The technical solution of this utility model is as follows:

[0005] A length measuring device for metrology and testing includes a platform, a five-axis worktable mounted on the platform, a tailstock, and a measuring seat, characterized in that...

[0006] It also includes mounting components and multiple probes;

[0007] The mounting assembly includes a sliding connection and a plurality of mounting seats spaced apart along the width direction, with different types of probes fixed on each mounting seat;

[0008] The sliding connection part cooperates with the sliding groove of the measuring seat or tailstock to achieve lateral sliding. It is provided with an adjustment hole that runs through the width direction. The front of the measuring seat or tailstock is threaded with an adjustment bolt. The adjustment bolt cooperates with the adjustment hole of the connection part inserted into the sliding groove. By rotating the adjustment bolt, the mounting assembly is driven to move laterally so that the target probe is aligned with the center position of the five-axis worktable.

[0009] The slide groove is a sideways T-shaped groove, and the sliding connection part is a sideways I-shaped structure. The right end of the sideways I-shaped structure mates with the slide groove of the T-shaped groove, and the left end is set outside the measuring seat or tail seat for connecting the mounting seat.

[0010] The groove extends forward from the rear of the measuring seat or tailstock to a distance of 15-30 mm from the front end face.

[0011] The probe is detachably fixed to the mounting base by screws.

[0012] The measuring base or tailstock is provided with scale lines to indicate the current switching position of the probe.

[0013] The five-axis worktable is equipped with a positioning laser indicator at its center to assist in the alignment of the probe.

[0014] The number of mounting bases is 2-4, and the center distance between each mounting base is an integer multiple of the pitch of the adjusting bolt.

[0015] The head of the adjusting bolt is provided with anti-slip texture or a handwheel.

[0016] The beneficial effects of this utility model are:

[0017] This invention allows the mounting components to slide laterally by rotating the adjusting bolt, enabling rapid switching between different probes without the need for repeated disassembly with tools. This significantly improves operational efficiency and reduces the risk of errors caused by manual intervention.

[0018] The sliding connection of the mounting component adopts an I-shaped structure, which is precisely matched with the T-shaped slide groove of the measuring base to ensure stability during movement and effectively prevent probe deviation or shaking, thereby ensuring measurement accuracy.

[0019] Multiple probes are pre-integrated into the mounting assembly, covering various measurement needs such as gauge blocks, smooth plug gauges, and thread plug gauges. By adjusting the matching design between the bolt pitch and the mounting seat spacing, precise positioning and rapid selection can be achieved. Attached Figure Description

[0020] Figure 1 A top view of the structural schematic diagram of the embodiment;

[0021] Figure 2 for Figure 1 The main view;

[0022] Figure 3 for Figure 2 View from direction A;

[0023] Figure 4 for Figure 1 A cross-sectional view of the installed components and probe without enlargement;

[0024] Figure 5 for Figure 4 Top view;

[0025] The components represented by the reference numerals in the diagram are:

[0026] 1. Platform; 2. Platform middle section; 3. Tailstock; 4. Measuring seat; 41. Slide groove; 5. Five-axis worktable; 6. Mounting assembly; 61. Sliding connection; 62. Mounting seat; 63. Adjustment hole; 7. Adjustment bolt; 8. Probe. Detailed Implementation

[0027] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0028] Example

[0029] See Figure 1 and Figure 2 The length detection device for metrology and testing involved in this embodiment includes a platform 1, a five-axis worktable 5, a tailstock 3 and a measuring seat 4 set on the platform 1, as well as a mounting assembly 6 and multiple probes 8.

[0030] Platform 1 serves as the fundamental support component of the entire device, providing a stable mounting reference for all other components. The five-axis worktable 5 is positioned in the center 2 of platform 1, possessing multiple degrees of freedom for adjustment. It can precisely adjust the position and angle of the object to be measured placed on it to meet different measurement needs. The tailstock 3 and measuring seat 4 are also slidably connected to platform 1, located on either side of the five-axis worktable 5, providing mounting and support for the mounting assembly 6. They can also move towards or away from each other to adjust the spacing for measuring gauges of different sizes.

[0031] See Figures 3-5 Mounting component 6 is one of the key components of this device; see [link / reference]. Figure 4 It includes a sliding connection portion 61 and a plurality of mounting seats 62 spaced apart along the width direction. The sliding connection portion 61 adopts a side-lying I-shaped structure and mates with a side-lying T-shaped groove 41 on the measuring seat 4 or the tail seat 3, see Figure 3 and Figure 1 This allows for the lateral sliding of the mounting component 6. This structural design provides good stability and guidance, ensuring that the mounting component 6 remains smooth and slides accurately during the sliding process. The slide groove 41 extends forward from the rear of the measuring seat 4 or the tailstock 3 to a distance of 15-30mm from the front end face, providing sufficient sliding stroke for the mounting component 6 while facilitating the connection of the front adjustment bolt 7.

[0032] See Figure 5 Each mounting base 62 is detachably fixed with a different type of probe 8 by screws. Preferably, the number of mounting bases 62 is 2-4, and the specific number can be selected according to the actual measurement needs. Preferably, the center distance between each mounting base 62 is an integer multiple of the pitch of the adjusting bolt 7. This design allows for more precise control of the switching position of the probe 8 when the mounting assembly 6 is driven to move laterally by the adjusting bolt 7.

[0033] See Figure 1 and Figure 2The front of the measuring seat 4 or tailstock 3 is threaded with an adjusting bolt 7, which mates with the adjusting hole 63 of the connecting part of the insertion slot 41. Preferably, the head of the adjusting bolt 7 is provided with anti-slip texture or a handwheel to facilitate the operator to rotate the adjusting bolt 7. By rotating the adjusting bolt 7, the mounting assembly 6 can be driven to move laterally, thereby aligning the target probe 8 with the center position of the five-axis worktable 5.

[0034] In one embodiment, preferably, the measuring base 4 or tailstock 3 is provided with scale lines to indicate the current switching position of the probe 8. The operator can intuitively understand the moving distance of the mounting assembly 6 and the switching status of the probe 8 according to the scale lines. Preferably, the five-axis worktable 5 is provided with a positioning laser indicator at its center. During the movement of the mounting assembly 6, the positioning laser indicator can assist in the alignment of the probe 8, ensuring that the probe 8 can accurately contact the object to be measured, thereby improving the accuracy of the measurement.

[0035] Working Principle: During length measurement, a suitable probe 8 is first selected and installed on the mounting base 62 according to the type of object to be measured and the measurement requirements. Then, by rotating the adjusting bolt 7, the threaded connection of the adjusting bolt 7 pushes the mounting assembly 6 to move laterally along the slide groove 41. Since the center distance of each mounting base 62 is an integer multiple of the pitch of the adjusting bolt 7, and the measuring base 4 or tailstock 3 has scale lines indicating the position, the operator can accurately move the target probe 8 to the center position of the five-axis worktable 5. Simultaneously, the positioning laser indicator at the center of the five-axis worktable 5 emits a laser beam to assist in the alignment of the probe 8. Once the probe 8 is accurately aligned, the object to be measured is placed on the five-axis worktable 5. Through adjustment of the five-axis worktable 5, the object to be measured is brought into contact with the probe 8, thereby performing length measurement. In this way, this device achieves rapid switching and precise alignment of different types of probes 8, improving the efficiency and accuracy of length measurement.

[0036] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A length measuring device for measurement and testing, comprising a platform (1), a five-axis worktable (5) disposed on the platform (1), a tailstock (3), and a measuring seat (4), characterized in that, It also includes mounting components (6) and multiple probes (8); The mounting assembly (6) includes a sliding connection (61) and a plurality of mounting seats (62) spaced apart along the width direction, with different types of probes (8) fixed on each mounting seat (62). The sliding connection (61) cooperates with the slide groove (41) of the measuring seat (4) or the tail seat (3) to achieve lateral sliding. It is provided with an adjustment hole (63) that runs through the width direction. The front part of the measuring seat (4) or the tail seat (3) is threaded with an adjustment bolt (7). The adjustment bolt (7) cooperates with the adjustment hole (63) of the connection part inserted into the slide groove (41). By rotating the adjustment bolt (7), the mounting assembly (6) is driven to move laterally so that the target probe (8) is aligned with the center position of the five-axis worktable (5).

2. The length detection device according to claim 1, characterized in that, The slide groove (41) is a side-lying T-shaped groove, and the sliding connection part (61) is a side-lying I-shaped structure. The right end of the side-lying I-shaped structure is matched with the slide groove of the T-shaped groove, and the left end is set outside the measuring seat (4) or the tail seat (3) for connecting the mounting seat.

3. The length detection device according to claim 2, characterized in that, The groove (41) extends forward from the rear of the measuring seat (4) or the tail seat (3) to a distance of 15-30 mm from the front end face.

4. The length detection device according to claim 1, characterized in that, The probe (8) is detachably fixed to the mounting base (62) by screws.

5. The length detection device according to claim 1, characterized in that, The measuring seat (4) or tail seat (3) is provided with scale lines to indicate the current switching position of the measuring head (8).

6. The length detection device according to claim 1, characterized in that, The five-axis worktable (5) is equipped with a positioning laser indicator at its center to assist in the alignment of the probe (8).

7. The length detection device according to claim 1, characterized in that, The number of mounting bases (62) is 2-4, and the center distance of each mounting base (62) is an integer multiple of the pitch of the adjusting bolt (7).

8. The length detection device according to claim 1, characterized in that, The head of the adjusting bolt (7) is provided with anti-slip texture or a handwheel.