A gantry type measuring machine installation mechanism
By introducing adjustment and support components into the gantry measuring machine, high-precision adjustment and stable support in multiple directions are achieved, solving the measurement error problem caused by single screw adjustment and improving the accuracy and component life of the measuring machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LIHE PRECISION EQUIP TECH CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
Smart Images

Figure CN224533935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metrology and testing, and in particular to an easy-to-adjust mounting mechanism for a gantry measuring machine. Background Technology
[0002] Gantry measuring machines are high-precision measuring devices commonly used in the field of metrology and testing. Based on the principle of coordinate measurement, they are usually composed of a gantry structure, a measuring system, and a detection system. They can accurately detect the geometric dimensions, shape, and positional tolerances of large or complex parts. They have the characteristics of large measurement range, strong stability, and high accuracy, and are widely used in fields such as machinery manufacturing and automotive industry, providing key data support for product quality control.
[0003] The adjustment mechanisms of existing gantry measuring machines mostly rely on two methods: single screw or shim compensation. These methods have obvious limitations, making it difficult to achieve micro-adjustments in multiple directions, which restricts the accuracy of the equipment's horizontal calibration. However, when measuring large workpieces, this will cause measurement errors in the equipment, which will not only affect the accuracy of the single measurement result, but may also have an adverse impact on a series of subsequent product quality inspection processes, making it difficult to meet the requirements of high-precision measurement. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an easily adjustable mounting mechanism for a gantry measuring machine, aiming to improve the problem in the prior art that "the reliance on a single screw for adjustment leads to measurement errors and adversely affects the product quality inspection process."
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an easily adjustable mounting mechanism for a gantry measuring machine, comprising a support leg, a base fixedly connected to the lower surface of the support leg, a guide rod fixedly connected to the inner wall of the support leg, a fixing frame slidably connected to the outer wall of the guide rod, an adjustment component provided on the outer wall of the support leg, and a support component provided on the inner wall of the support leg.
[0006] The adjusting component includes a wedge block, a first threaded rod is threadedly connected to the inner wall of the wedge block, a movable block is fixedly connected to the left end of the first threaded rod, an anti-loosening nut is threadedly connected to the outer wall of the first threaded rod, a limit block is provided at the right end of the first threaded rod, and a pulley is provided on the lower surface of the wedge block.
[0007] As a further description of the above technical solution:
[0008] A guide block is fixedly connected to the upper surface of the wedge-shaped block, and the guide block is slidably connected to the inner wall of the fixing frame.
[0009] As a further description of the above technical solution:
[0010] The support assembly includes a second threaded rod, which is threaded to the inner wall of the support leg, and a butterfly block is fixedly connected to the front end of the second threaded rod.
[0011] As a further description of the above technical solution:
[0012] A support block is fixedly connected to the outer wall of the second threaded rod, and a sliding block is slidably connected to the inner wall of the support leg, with the sliding block sliding on the outer wall of the support block.
[0013] As a further description of the above technical solution:
[0014] The rear end of the support block is configured as a frustum shape.
[0015] As a further description of the above technical solution:
[0016] The front transverse cross section of the wedge block is set as a right trapezoid.
[0017] As a further description of the above technical solution:
[0018] The upper transverse section of the support leg is trapezoidal and parallel to the lower end of the wedge block.
[0019] This utility model has the following beneficial effects:
[0020] 1. In this utility model, the adjustment component set on the upper surface of the support leg allows for adjustment by first rotating the movable block to push the wedge block to slide, thereby causing one end of the fixed frame to move horizontally upward until the required adjustment standard is reached. Then, the anti-loosening nut is rotated in the opposite direction to lock the first threaded rod. This can meet the adjustment requirements of high-precision measurement and solve the problem of measurement error caused by relying on a single screw adjustment. This can improve the accuracy and stability of the gantry measuring machine during the testing process.
[0021] 2. In this utility model, a drive support component is set on the inner wall of the support leg. After the wedge block is adjusted, in order to prevent the pulley from being squeezed for a long time, the butterfly block is rotated first to drive the second threaded rod to rotate, pushing the support block to move towards the sliding block. Since the rear end of the support block is set as a frustum, it can form an upward pushing force on the sliding block during the movement, so that the sliding block moves up smoothly and supports the bottom of the wedge block, thereby providing stable support for the wedge block. This can share the pressure on the pulley and extend the service life of the pulley. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0023] Figure 2This is a bottom view of the three-dimensional structure of the fixing frame in this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the adjustment component in this utility model;
[0025] Figure 4 This is a bottom view of the three-dimensional structure of the wedge block in this utility model;
[0026] Figure 5 This is a three-dimensional cross-sectional view of the support component in this utility model;
[0027] Figure 6 This is a three-dimensional structural disassembly diagram of the second threaded rod in this utility model.
[0028] Legend:
[0029] 1. Measuring instrument; 2. Adjustment assembly; 21. Movable block; 22. First threaded rod; 23. Anti-loosening nut; 24. Limiting block; 25. Wedge block; 26. Guide block; 27. Pulley; 4. Support assembly; 41. Butterfly block; 42. Second threaded rod; 43. Sliding block; 44. Support block; 5. Support leg; 6. Base; 7. Guide rod; 9. Fixing frame. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0031] Reference Figure 1 - Figure 2 This utility model provides an embodiment of an easily adjustable gantry measuring machine mounting mechanism, including a support leg 5. The support leg 5 provides a mounting carrier and stable support foundation for all components. A base 6 is fixedly connected to the lower surface of the support leg 5. The base 6 is used to increase the grounding area, distribute the load, prevent the support leg 5 from sinking into the ground, and improve the overall placement stability of the mechanism. A guide rod 7 is fixedly connected to the inner wall of the support leg 5. The guide rod 7 provides precise guidance for the movement of the fixed frame 9, restricting it to move only horizontally along the axial direction to avoid deviation and shaking. A fixed frame 9 is slidably connected to the outer wall of the guide rod 7. The fixed frame 9 is used to support the measuring instrument 1 and moves along the guide rod 7 under the push of the wedge block 25 to realize the position adjustment of the measuring instrument 1. An adjustment component 2 is provided on the outer wall of the support leg 5. The adjustment component 2 is used to realize high-precision adjustment. A support component 4 is provided on the inner wall of the support leg 5. The support component 4 is used to reduce the friction between the wedge block 25 and the support leg 5.
[0032] Reference Figure 1 - Figure 2 The adjusting component 2 includes a wedge block 25, which is used to push the fixed frame 9 upward using the right-angled trapezoidal height difference. The trapezoidal structure ensures uniform sliding force and prevents the fixed frame 9 from tilting. The inner wall of the wedge block 25 is threadedly connected to a first threaded rod 22. The first threaded rod 22 is used to convert its own rotation into horizontal sliding of the wedge block 25 through threaded transmission, pushing the fixed frame 9 to adjust its position and adapt to bidirectional sliding requirements. The left end of the first threaded rod 22 is fixedly connected to a movable block 21, which is the power input component for adjustment operation. The movable block 21 drives the first threaded rod 22 to rotate, converting the manual operation force into... The power is converted into threaded transmission. The outer wall of the first threaded rod 22 is threaded with an anti-loosening nut 23. The anti-loosening nut 23 is used to limit its reverse rotation due to its own weight or vibration, lock the adjustment position, and prevent the fixed frame 9 from shifting and rebounding. A limit block 24 is provided at the right end of the first threaded rod 22. The limit block 24 is used to limit the axial movement range of the first threaded rod 22 and prevent the first threaded rod 22 from detaching from the mounting structure. A pulley 27 is provided on the lower surface of the wedge block 25. The pulley 27 is used to reduce the friction between the wedge block 25 and the inner wall of the support leg 5, converting sliding friction into rolling friction, reducing component wear, and extending service life.
[0033] Reference Figure 3 - Figure 4 A guide block 26 is fixedly connected to the upper surface of the wedge block 25. The guide block 26 is used to convert the horizontal sliding of the wedge block 25 into a stable pushing force, while limiting the sliding trajectory of the wedge block 25 and improving the adjustment accuracy. The guide block 26 is slidably connected to the inner wall of the fixed frame 9. The support assembly 4 includes a second threaded rod 42. The second threaded rod 42 is used to convert its own rotation into axial movement through threaded transmission, pushing the support block 44 forward. The second threaded rod 42 is threadedly connected to the inner wall of the support leg 5. A butterfly block 41 is fixedly connected to the front end of the second threaded rod 42. The butterfly block 41 is easy to rotate by hand, driving the second threaded rod 42 to rotate, simplifying the support adjustment process.
[0034] Reference Figure 5 - Figure 6 A support block 44 is fixedly connected to the outer wall of the second threaded rod 42. The support block 44 is used to convert the axial thrust of the second threaded rod 42 into an upward pressing force on the sliding block 43, pushing the sliding block 43 to move upward. The inner wall of the support leg 5 is slidably connected to the sliding block 43. The sliding block 43 provides vertical stability support for the wedge block 25 and shares the vertical load. The sliding block 43 slides on the outer wall of the support block 44. The rear end of the support block 44 is set as a frustum shape. The front end of the wedge block 25 has a right trapezoidal cross section. The upper end of the support leg 5 has a trapezoidal cross section and is parallel to the lower end of the wedge block 25.
[0035] Working principle: When it is necessary to adjust the height or horizontal position of the fixed frame 9, first rotate the movable block 21 on the left side of the adjusting component 2. Since the movable block 21 is fixedly connected to the left end of the first threaded rod 22, the rotation of the movable block 21 will drive the first threaded rod 22 to rotate synchronously. When the first threaded rod 22 rotates, the thread transmission will be converted into the horizontal sliding of the wedge block 25 along the inner wall of the support leg 5. Since the front cross section of the wedge block 25 is a right trapezoid, as the wedge block 25 slides horizontally, the height difference of its trapezoidal structure will generate an upward pushing force on the fixed frame 9, causing the fixed frame 9 to move horizontally upward along the guide rod 7. Then, continue to rotate the movable block 21 and observe the displacement state of the fixed frame 9 until the fixed frame 9 reaches the required horizontal height or position standard, and then stop rotating the movable block 21.
[0036] After adjustment, the anti-loosening nut 23 on the outer wall of the first threaded rod 22 is rotated in the opposite direction, so that the anti-loosening nut 23 is tightly pressed against the outer wall of the support leg 5. The friction force restricts the first threaded rod 22 from rotating in the opposite direction due to the weight of the equipment or vibration, locking the current adjustment position and preventing the fixed frame 9 from shifting and rebounding, thus ensuring stable adjustment accuracy. To prevent the pulley 27 on the lower surface of the wedge block 25 from being squeezed by the fixed frame 9 and the wedge block 25 for a long time, the operator rotates the butterfly block 41 at the front end of the support assembly 4. At this time, the rotation of the butterfly block 41 will drive the second threaded rod 42 to move axially along the inner wall of the support leg 5, thereby pushing the support block 44 fixed to the outer wall of the second threaded rod 42 to move forward synchronously. The rear end of the support block 44 is designed as a frustum. As the support block 44 moves forward, the inclined surface of its frustum structure will contact the sliding block 43 on the inner wall of the support leg 5. When the support block 44 continues to move forward, the squeezing force of the frustum inclined surface will be converted into the upward displacement force of the sliding block 43, pushing the sliding block 43 to move smoothly upward along the inner wall of the support leg 5. When the sliding block 43 moves upward and is tightly attached to the bottom of the wedge block 25, the butterfly block 41 stops rotating. At this time, the sliding block 43 maintains a stable support state through the frustum structure of the support block 44, which shares most of the vertical load with the wedge block 25, greatly reduces the pressure on the pulley 27, avoids long-term pressure damage to the pulley 27, and extends the service life of the pulley 27.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An easily adjustable mounting mechanism for a gantry measuring machine, comprising support legs (5), characterized in that: A base (6) is fixedly connected to the lower surface of the support leg (5), a guide rod (7) is fixedly connected to the inner wall of the support leg (5), a fixing frame (9) is slidably connected to the outer wall of the guide rod (7), an adjustment component (2) is provided on the outer wall of the support leg (5), and a support component (4) is provided on the inner wall of the support leg (5). The adjustment component (2) includes a wedge block (25), the inner wall of the wedge block (25) is threaded with a first threaded rod (22), the left end of the first threaded rod (22) is fixedly connected with a movable block (21), the outer wall of the first threaded rod (22) is threaded with an anti-loosening nut (23), the right end of the first threaded rod (22) is provided with a limit block (24), and the lower surface of the wedge block (25) is provided with a pulley (27).
2. The easily adjustable mounting mechanism for a gantry measuring machine according to claim 1, characterized in that: A guide block (26) is fixedly connected to the upper surface of the wedge block (25), and the guide block (26) is slidably connected to the inner wall of the fixing frame (9).
3. The mounting mechanism for an easily adjustable gantry measuring machine according to claim 1, characterized in that: The support assembly (4) includes a second threaded rod (42), which is threaded to the inner wall of the support leg (5), and a butterfly block (41) is fixedly connected to the front end of the second threaded rod (42).
4. The easily adjustable mounting mechanism for a gantry measuring machine according to claim 3, characterized in that: The outer wall of the second threaded rod (42) is fixedly connected to a support block (44), and the inner wall of the support leg (5) is slidably connected to a sliding block (43), which slides on the outer wall of the support block (44).
5. The easily adjustable mounting mechanism for a gantry measuring machine according to claim 4, characterized in that: The rear end of the support block (44) is configured as a frustum shape.
6. The easily adjustable mounting mechanism for a gantry measuring machine according to claim 4, characterized in that: The front transverse section of the wedge block (25) is set as a right trapezoid.
7. The easily adjustable mounting mechanism for a gantry measuring machine according to claim 1, characterized in that: The upper transverse section of the support leg (5) is set as trapezoidal and parallel to the lower end of the wedge block (25).