Automatic clamping three-coordinate flexible brace
By designing an automatic clamping three-coordinate flexible support and adopting a movable expansion sleeve assembly and a cylinder drive mechanism, the problem of multiple types of supports and inconvenient manual clamping in steering knuckle testing has been solved, realizing automatic clamping of multiple steering knuckles and reducing costs.
Patent Information
- Application Number
- CN202520259058.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In the existing technology, the inspection of steering knuckles requires manual clamping using a variety of different supports, which results in high costs and inconvenience in operation, and is not compatible with multiple products.
An automatic clamping three-coordinate flexible support was designed, which includes a movable expansion sleeve assembly and a cylinder drive mechanism. The gap between the expansion sleeves can be adjusted by a sliding adjustment mechanism to achieve automatic clamping of various steering knuckles.
It enables automatic clamping of various steering knuckles, reducing design and procurement costs and improving clamping efficiency.
Smart Images

Figure CN223734735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology, specifically an automatic clamping three-coordinate flexible support. Background Technology
[0002] Steering knuckles are aluminum alloy automotive parts that require coordinate measuring machine (CMM) inspection during production. Inspection necessitates the use of a fixture to secure the steering knuckle. Different steering knuckles typically require different fixtures and manual clamping. As the variety of products increases, the number of fixtures also grows, leading to higher costs. Furthermore, manual clamping is cumbersome. Therefore, a CMM fixture that is compatible with multiple products and can automatically clamp is needed. Utility Model Content
[0003] In view of this, the present invention aims to propose an automatic clamping three-coordinate flexible support that can adjust the tension sleeve spacing, is compatible with the clamping of various steering knuckles, and can automatically clamp.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] An automatic clamping three-coordinate flexible support includes a base plate; a vertical plate fixed to the base plate; reinforcing ribs disposed between the base plate and the vertical plate; a fixed support fixedly mounted on the vertical plate and a movable support movably mounted thereon; a first expansion sleeve assembly mounted on the fixed support, comprising a first expansion sleeve and a first expansion core arranged coaxially; a second expansion sleeve assembly mounted on the movable support, comprising a second expansion sleeve and a second expansion core arranged coaxially; a cylinder drive mechanism disposed on the base plate, comprising a cylinder base, a cylinder, a floating joint, and a connecting frame; a movable plate linked to the connecting frame, the movable plate forming a sliding fit with a corresponding optical axis through a linear bearing; the movable plate being connected to the second expansion core through a movable bracket, and the first expansion core being directly fixed to the movable plate; wherein the movable support is provided with a sliding adjustment mechanism along the vertical plate, and the axial distance between the first expansion sleeve and the second expansion sleeve is adaptively adjusted by the displacement of the movable support.
[0006] In some embodiments, the linear bearing includes a first linear bearing, a second linear bearing, a third linear bearing, and a fourth linear bearing; the optical axis includes a first optical axis, a second optical axis, a third optical axis, and a fourth optical axis, and the four sets of linear bearings are distributed in a rectangular array with the optical axis, including two sets of horizontally guided first linear bearings and second linear bearings and two sets of vertically guided third linear bearings and fourth linear bearings.
[0007] In some embodiments, the sliding adjustment mechanism of the movable support is used to adjust the distance between the first expansion sleeve and the second expansion sleeve so that they correspond to the position of the steering knuckle caliper hole.
[0008] In some embodiments, the outer diameter of the first and second expansion sleeves in the unstretched state is smaller than the inner diameter of the steering knuckle caliper hole.
[0009] In some embodiments, the reinforcing ribs include a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, and a fourth reinforcing rib.
[0010] Compared with existing technologies, the automatic clamping three-coordinate flexible support described in this utility model has the following advantages:
[0011] The automatic clamping three-coordinate flexible support disclosed in this utility model can adapt to the clamping requirements of various steering knuckles, reducing design and procurement costs. It can achieve automatic clamping and improve clamping efficiency. Attached Figure Description
[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0013] Figure 1 This is a front view of an automatic clamping three-coordinate flexible support according to the present invention.
[0014] Figure 2 This is a left view of an automatic clamping three-coordinate flexible support according to the present invention.
[0015] Figure 3 This is a top view of an automatic clamping three-coordinate flexible support according to the present invention.
[0016] Figure 4 This is an isometric drawing of an automatic clamping three-coordinate flexible support according to the present invention.
[0017] Figure 5 This utility model relates to an automatic clamping three-coordinate flexible support for a steering knuckle.
[0018] Explanation of reference numerals in the attached figures
[0019] Base plate-1; Vertical plate-2; First reinforcing rib-3; Fixed support-4; First expansion sleeve-5; First expansion core-6; Second expansion core-7; Second expansion sleeve-8; Moving support-9; Second reinforcing rib-10; Third reinforcing rib-11; First linear bearing-12; First optical axis-13; Cylinder base-14; Floating joint-15; Cylinder-16; Connecting frame-17; Second optical axis-18; Second linear bearing-19; Moving plate-20; Third optical axis-21; Third linear bearing-22; Fourth optical axis-23; Fourth linear bearing-24; Moving bracket-25; Fourth reinforcing rib-26. Detailed Implementation
[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] The following is for reference. Figures 1 to 5 The automatic clamping three-coordinate flexible support of this utility model is described in conjunction with the embodiments.
[0023] An automatic clamping three-coordinate flexible support includes a base plate 1, a vertical plate 2, a first reinforcing rib 3, a fixed support 4, a first expansion sleeve 5, a first expansion core 6, a second expansion core 7, a second expansion sleeve 8, a movable support 9, a second reinforcing rib 10, a third reinforcing rib 11, a first linear bearing 12, a first optical axis 13, a cylinder base 14, a floating joint 15, a cylinder 16, a connecting frame 17, a second optical axis 18, a second linear bearing 19, a moving plate 20, a third optical axis 21, a third linear bearing 22, a fourth optical axis 23, a fourth linear bearing 24, a movable bracket 25, and a fourth reinforcing rib 26.
[0024] The upright plate 2 is mounted on the base plate 1. The first reinforcing rib 3, the second reinforcing rib 10, the third reinforcing rib 11, and the fourth reinforcing rib 25 are mounted on both the base plate 1 and the upright plate 2. The fixed support 4 is mounted on the upright plate 2. The first expansion sleeve 5 is mounted on the fixed support 4. The movable support 9 is mounted on the upright plate 2. The second expansion sleeve 8 is mounted on the movable support 9. The cylinder base 14 is mounted on the base plate 1. The cylinder 16 is mounted on the cylinder base 14. The floating joint 15 is mounted on the cylinder 16. The connecting frame 17 is mounted on the floating joint 15. The moving plate 20 is mounted on the connecting frame 17. The first linear bearing 12, the second linear bearing 19, the third linear bearing 22, and the fourth linear bearing 24 are mounted on the moving plate 20. The first optical axis 13, the second optical axis 18, the third optical axis 21, and the fourth optical axis 23 are mounted on the vertical plate 2 and cooperate with the first linear bearing 12, the second linear bearing 19, the third linear bearing 22, and the fourth linear bearing 24. The first expansion core 6 is mounted on the moving plate 20 and connected to the first expansion sleeve 5. The movable bracket 25 is mounted on the moving plate 20. The second expansion core 7 is mounted on the movable bracket 25 and connected to the second expansion sleeve 8.
[0025] An automatic clamping three-coordinate flexible support includes a base plate 1; a vertical plate 2 fixed to the base plate 1; a reinforcing rib disposed between the base plate 1 and the vertical plate 2; a fixed support 4 fixedly installed on the vertical plate 2 and a movable support 9 movably installed; a first expansion sleeve assembly installed on the fixed support 4, including a first expansion sleeve 5 and a first expansion core 6 coaxially arranged; a second expansion sleeve assembly installed on the movable support 9, including a second expansion sleeve 8 and a second expansion core 7 coaxially arranged; a cylinder drive mechanism disposed on the base plate 1, including a cylinder base 14, a cylinder 16, a floating joint 15 and a connecting frame 17; a movable plate 20 linked to the connecting frame 17, the movable plate forming a sliding fit with a corresponding optical axis through a linear bearing; the movable plate 20 being connected to the second expansion core 7 through a movable bracket 25, and the first expansion core 6 being directly fixed to the movable plate 20; wherein the movable support 9 is provided with a sliding adjustment mechanism along the vertical plate 2, and the axial distance between the first expansion sleeve 5 and the second expansion sleeve 8 is adaptively adjusted by the displacement of the movable support 9.
[0026] The linear bearings include a first linear bearing, a second linear bearing, a third linear bearing, and a fourth linear bearing; the optical axis includes a first optical axis, a second optical axis, a third optical axis, and a fourth optical axis. The four sets of linear bearings and the optical axis are arranged in a rectangular array, including two sets of horizontally guided first and second linear bearings and two sets of vertically guided third and fourth linear bearings. The sliding adjustment mechanism of the movable support 9 is used to adjust the distance between the first expansion sleeve 5 and the second expansion sleeve 8 so that they correspond to the position of the steering knuckle caliper hole. The outer diameter of the first expansion sleeve 5 and the second expansion sleeve 8 in the unstretched state is smaller than the inner diameter of the steering knuckle caliper hole. The reinforcing ribs include a first reinforcing rib 3, a second reinforcing rib 10, a third reinforcing rib 11, and a fourth reinforcing rib 26.
[0027] In actual use, the sliding support 9 is moved according to the spacing of the steering knuckle caliper holes, so that the spatial positions of the first expansion sleeve 5 and the second expansion sleeve 8 correspond to the positions of the steering knuckle caliper holes. The locking bolts are then tightened to fix the position of the sliding support 9. The diameter of the first expansion sleeve 5 and the second expansion sleeve 8 is smaller than the diameter of the steering knuckle caliper holes when they are not tightened. The two caliper holes of the steering knuckle are fitted onto the first expansion sleeve 5 and the second expansion sleeve 8, respectively. Compressed air is turned on, and the cylinder rod of the cylinder 16 moves, causing the floating joint 15 to move. The floating joint 15 moves the connecting frame 17, and the connecting frame 17 moves the moving plate 20 along the first optical axis 13, the second optical axis 18, the third optical axis 21, and the fourth optical axis 23 under the action of the first linear bearing 12, the second linear bearing 19, the third linear bearing 22, and the fourth linear bearing 24. The moving plate 20 pulls the first expansion core 6 and the moving bracket 25 to move, and the moving bracket 25 pulls the second expansion core 7. At this time, the first expansion sleeve 5 and the second expansion sleeve 8 open under the action of the first expansion core 6 and the second expansion core 7, which can tighten the steering knuckle caliper holes to complete the clamping.
[0028] Compared with existing technologies, the automatic clamping three-coordinate flexible support of this utility model has the following advantages:
[0029] The automatic clamping three-coordinate flexible support disclosed in this utility model can adapt to the clamping requirements of various steering knuckles, reducing design and procurement costs. It can achieve automatic clamping and improve clamping efficiency.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An automatic clamping three-coordinate flexible brace, characterized in that, The application relates to a steering knuckle caliper hole positioning device, which comprises a bottom plate, a vertical plate fixed vertically on the bottom plate, a reinforcing rib arranged between the bottom plate and the vertical plate, a fixed support fixedly installed on the vertical plate and a movable support movably installed, a first expansion sleeve assembly installed on the fixed support, a second expansion sleeve assembly installed on the movable support, a cylinder driving mechanism arranged on the bottom plate, a moving plate connected with the connecting frame, the moving plate being in sliding fit with the corresponding optical axis through a linear bearing, the moving plate being connected with the second expansion core through a moving support, and the first expansion core being directly fixed on the moving plate, wherein the movable support is provided with a sliding adjustment mechanism along the vertical plate, and the axial distance between the first expansion sleeve and the second expansion sleeve is adaptively adjusted through displacement of the movable support.
2. The automatic clamping three-coordinate flexible brace according to claim 1, characterized in that, The linear bearings comprise first linear bearings, second linear bearings, third linear bearings and fourth linear bearings; the optical axes comprise first optical axes, second optical axes, third optical axes and fourth optical axes, and the four groups of linear bearings and the optical axes are distributed in a rectangular array, including two groups of horizontally-guided first linear bearings and second linear bearings and two groups of vertically-guided third linear bearings and fourth linear bearings.
3. The automatic clamping three-coordinate flexible brace of claim 1, wherein, The sliding adjustment mechanism of the movable support is used for adjusting the distance between the first expansion sleeve and the second expansion sleeve, so that the two are corresponding to the position of the steering knuckle caliper hole.
4. The automatic clamping three-coordinate flexible brace of claim 1, wherein, The outer diameters of the first expansion sleeve and the second expansion sleeve in the untightened state are smaller than the inner diameter of the steering knuckle caliper hole.
5. The automatic clamping three-axis flexible brace of claim 1, wherein, The reinforcing rib comprises first reinforcing ribs, second reinforcing ribs, third reinforcing ribs and fourth reinforcing ribs.