XYZr four-axis detection truss

Abstract

This utility model discloses an XYZR four-axis inspection truss, belonging to the field of inspection trusses. The inner wall of the legs of the inspection support table is equipped with a Z2-axis slide rail, and a Z2-axis drive assembly is installed at the legs, driving the upper slide block of the Z2-axis slide rail to move. An X-axis slide rail is installed between two parallel slide blocks, and an X-axis drive assembly is provided on the side wall of the X-axis slide rail, driving the upper slide block of the X-axis slide rail to move. A rotary axis drive assembly and a rotary table are installed on this slide block, and the rotary axis drive assembly drives the tabletop of the rotary table to move. A Y-axis slide rail is connected to the other slide block of the Z2-axis slide rail. The four-axis adjustment system provides a wide range and flexible adjustment capability in multiple axes (X, Y, Z1, Z2). The Z1-axis stable sliding system ensures the smoothness, accuracy, and structural rigidity of the Z1-axis movement. Together, these two systems enable the equipment to achieve large stroke and multi-directional adjustment while maintaining high motion accuracy and stability, ensuring the accuracy and reliability of inspection operations and expanding the applicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of inspection trusses, and in particular to an XYZR four-axis inspection truss. Background Technology

[0002] The XYZR four-axis inspection gantry is a gantry-type automated inspection device integrating three linear motion axes (X, Y, and Z) and a rotary axis (R). It is primarily used for high-precision inspection in industrial applications. The main frame is typically constructed from aluminum profiles or high-strength steel, providing high rigidity and stability. Custom sizes are available to suit different inspection ranges and support large-stroke inspection requirements. The four-axis drive system uses X (lateral), Y (longitudinal), and Z (vertical) axes for three-dimensional spatial positioning, usually configured with servo motors and ball screws / synchronous belt drives to ensure motion accuracy (repeatability up to ±0.01mm). The R-axis (rotational axis), integrated at the end of the Z-axis, is used to adjust the inspection head / workpiece posture (e.g., 360° rotation or fine-tuning), adapting to inspection needs in different directions.

[0003] Inspection Unit: Equipped with vision sensors (such as industrial cameras, laser profilometers), contact probes (such as probes), or other inspection tools depending on the application, it performs functions such as dimensional measurement, defect identification, and assembly verification. Control System: Integrates a PLC or dedicated motion controller, supports G-code / graphical programming, and can be linked with a host computer or MES system to achieve automated inspection processes.

[0004] When using the XYZR four-axis inspection gantry, the fixed height of the Z-axis limits the vertical inspection range, making it difficult to flexibly adapt to workpieces of different heights. Frequent adjustments or replacements of the gantry are required, increasing operational complexity and time costs. Expanding the Z-axis height requires modifying the mechanical structure (such as replacing the guide rails and adjusting the transmission components), recalibrating the coordinate system, and raising concerns about the compatibility of the original control system. This results in high technical difficulty and cost. After expansion, the Z-axis center of gravity rises, increasing inertial forces during high-speed movement or start-stop, which can easily cause vibration. The increased length of the guide rail support leads to deflection deformation, decreased rigidity, and poorer movement stability, affecting inspection accuracy and even causing mechanical failures. Utility Model Content

[0005] The main objective of this invention is to provide an XYZR four-axis detection truss that can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An XYZR four-axis inspection truss includes an inspection support table; The inner wall of the legs of the testing support table is equipped with a Z2 axis slide rail, and a Z2 axis drive assembly is installed at the legs to drive the upper slide of the Z2 axis slide rail to move. An X-axis slide rail is installed between two parallel slides. An X-axis drive assembly is provided on the side wall of the X-axis slide rail to drive the upper slide of the X-axis slide rail to move. A rotary axis drive assembly and a rotary table are installed on the slide, and the rotary axis drive assembly drives the table plate of the rotary table to move. A Y-axis slide rail is connected to another slide of the Z2 axis slide rail. The two Y-axis slide rails are arranged parallel to each other on the testing support table. A Y-axis drive assembly is installed on the axis of the Y-axis slide rail. The Y-axis drive assembly has a lateral column on its side wall, a Z1 axis slide rail is mounted on the lateral column, and a Z1 axis drive assembly adapted to the Z1 axis slide rail is connected to the bottom of the lateral column to increase the height of the Z-axis. The bracket of the lateral column is connected to a stabilizing column through the Y-axis slide rail, and the inner wall of the stabilizing column is provided with a first limiting sliding seat and a second limiting sliding seat. The outer end of the Y-axis slide rail is provided with a limiting slide bar that is adapted to the first limiting sliding seat and the second limiting sliding seat.

[0007] In an optional embodiment of this application, the lower end of the testing support table is provided with anti-slip stabilizing feet, the surface of which is connected with anti-slip pads by adhesive, and the side-by-side legs of the testing support table are provided with sealing strips and connected by bolts; In an optional embodiment of this application, the X-axis drive assembly, Y-axis drive assembly, Z1-axis drive assembly, and Z2-axis drive assembly all include a drive motor and a reducer. The X-axis drive motor is a 400W motor and the X-axis reducer is a 10-ratio reducer. The Y-axis drive motor is a 2.4KW motor and the Y-axis reducer is a 20-ratio reducer. The Z1-axis drive motor is a 3.5kW motor with a braking system and the Z1-axis reducer is a 70-ratio reducer. The Z2-axis drive motor is a 1.5kW motor and the Z2-axis reducer is a 10-ratio reducer. In an optional embodiment of this application, the X-axis slide rail is 1.5 module 25 teeth with an effective X-axis travel of 4000 mm; the Y-axis slide rail is 3 module 25 teeth with an effective Y-axis travel of 6100 mm; the Z1-axis slide rail is 4 module 25 teeth with an effective Z1-axis travel of 1400 mm; the Z2-axis slide rail is 2 module 28 teeth with an effective Z2-axis travel of 2330 mm; and the rotation angle of the rotary table is 180 degrees. In an optional embodiment of this application, the stabilizing column and the lateral column are welded and fixed, and their cross-sections are U-shaped. The stabilizing column is connected to the first limiting sliding seat and the second limiting sliding seat by bolts, and the connection is provided with anti-slip rubber pads. The wheels of the first limiting sliding seat and the second limiting sliding seat are provided with recessed grooves. In an optional embodiment of this application, the limiting slide bar is bolted to the Y-axis slide rail, and the outer end of the limiting slide bar is designed with a bevel. The beveled limiting slide bar is adapted to the recessed groove of the first limiting sliding seat and the second limiting sliding seat wheel.

[0008] Compared with the prior art, the present invention has the following beneficial effects: By configuring drive motors and reducers with different power (400W for X-axis, 2.4kW for Y-axis, 3.5kW for Z1 axis with brake, and 1.5kW for Z2 axis) and reduction ratios (10:, 20:, 70:, and 10:), the load and accuracy requirements of each axis are matched; each axis is driven independently, enabling flexible adjustment in multiple directions: X (effective stroke 4000mm), Y (6100mm), Z1 (1400mm), and Z2 (2330mm); the large effective stroke covers a wide working area, accurately controls the displacement of each axis, and improves the flexibility and accuracy of detection position adjustment.

[0009] The "U"-shaped cross-section design of the stabilizing column and lateral column balances structural strength and lightweight design; the first and second limiting sliding seats and the outer end limiting slide bar (outer end inclined structure) of the Y-axis slide rail are matched with high precision through wheel recess grooves, which effectively restricts the degree of freedom of movement and enhances the overall rigidity and motion repeatability positioning accuracy; the wheel recess groove of the sliding seat improves the smoothness and accuracy of movement; the anti-slip rubber pad at the connection reduces vibration and prevents loosening, improving the stability of movement.

[0010] The four-axis adjustment system provides a wide range of flexible adjustment capabilities in multiple axes, including X, Y, Z1, and Z2. The Z1 axis stabilizing sliding system ensures the smoothness, accuracy, and structural rigidity of the Z1 axis movement. Together, they enable the equipment to achieve large stroke and multi-directional adjustment while maintaining high motion accuracy and stability, ensuring the accuracy and reliability of testing operations and expanding the applicability of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a top view of the overall structure of this utility model; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 for Figure 1 Enlarged diagram of point B in the middle.

[0012] In the diagram: 1. Testing support table; 2. X-axis slide rail; 3. X-axis drive assembly; 4. Rotary axis drive assembly; 5. Rotary table; 6. Y-axis slide rail; 7. Y-axis drive assembly; 8. Z1-axis slide rail; 9. Z1-axis drive assembly; 10. Stabilizing column; 11. Limiting slide bar; 12. First limiting sliding seat; 13. Second limiting sliding seat; 14. Z2-axis slide rail; 15. Z2-axis drive assembly. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1 - Figure 5 As shown, an XYZR four-axis inspection truss includes an inspection support table 1. A Z2-axis slide rail 14 is installed on the inner wall of the table legs of the inspection support table 1, and a Z2-axis drive assembly 15 is also mounted at the table legs to drive the slides on the Z2-axis slide rail 14 to move vertically. An X-axis slide rail 2 is straddled between two side-by-side slides, and an X-axis drive assembly 3 is provided on the side wall of the X-axis slide rail 2 to drive the slides on the X-axis slide rail 2 to move along the X-axis. A rotary axis drive assembly 4 and a rotary table 5 are mounted above the slides, and the rotary axis drive assembly 4 precisely controls the rotation of the tabletop of the rotary table 5.

[0015] A Y-axis slide rail 6 is connected to another slide of the Z2 axis slide rail 14. The two Y-axis slide rails 6 are arranged in parallel above the testing support table 1. A Y-axis drive assembly 7 is mounted on the axis of the Y-axis slide rail 6 to enable the slide to move along the Y-axis direction. A lateral column is fixed to the side wall of the Y-axis drive assembly 7, and a Z1 axis slide rail 8 is mounted on the lateral column. The bottom of the lateral column is connected to a Z1 axis drive assembly 9 that cooperates with the Z1 axis slide rail 8, working together to extend the working height in the Z-axis direction.

[0016] The support of the lateral column passes through the Y-axis slide rail 6 and is connected to the stabilizing column 10. The inner wall of the stabilizing column 10 is provided with a first limiting sliding seat 12 and a second limiting sliding seat 13. The outer end of the Y-axis slide rail 6 is equipped with a limiting slide bar 11 that cooperates with the first limiting sliding seat 12 and the second limiting sliding seat 13 to improve motion stability and limit unintended displacement.

[0017] In terms of structural details, the lower end of the testing support table 1 is equipped with anti-slip stabilizing feet, and the surface of these feet is covered with anti-slip pads using high-strength adhesive to enhance the overall stability of the equipment. Seals are also installed between the side-by-side legs of the testing support table 1, and these legs are secured with bolts to ensure overall rigidity.

[0018] Regarding the drive system, the X-axis drive assembly 3, Y-axis drive assembly 7, Z1-axis drive assembly 9, and Z2-axis drive assembly 15 all include drive motors and reducers. Specifically, the X-axis drive motor is a 400W motor, matched with a 10:1 reducer; the Y-axis drive motor has a power of 2.4KW, matched with a 20:1 reducer; the Z1-axis drive motor is a 3.5kW high-power motor with a braking system, used with a 70:1 reducer; and the Z2-axis drive motor is a 1.5kW motor, matched with a 10:1 reducer.

[0019] In terms of motion parameters, the X-axis slide rail 2 adopts a 1.5 module 25 tooth specification with an effective stroke of 4000mm; the Y-axis slide rail 6 is a 3 module 25 tooth specification with an effective stroke of 6100mm; the Z1 axis slide rail 8 is a 4 module 25 tooth specification with an effective stroke of 1400mm; the Z2 axis slide rail 14 is a 2 module 28 tooth specification with an effective stroke of 2330mm; and the rotary table 5 can achieve 180-degree rotation.

[0020] In terms of structural stability, the stabilizing column 10 is fixed to the lateral column by welding, and both have a "U"-shaped cross-section, which ensures strength while reducing structural weight. The stabilizing column 10 is bolted to the first limiting sliding seat 12 and the second limiting sliding seat 13, and anti-slip rubber pads are added at the connection to reduce vibration and prevent loosening. The wheels of the sliding seats are all machined with recessed grooves to further improve the smoothness and accuracy of movement.

[0021] The limiting slide bar 11 is fastened to the Y-axis slide rail 6 by bolts, and its outer end is designed as a bevel structure. This bevel shape forms a high-precision fit with the grooves on the wheels of the first limiting slide seat 12 and the second limiting slide seat 13, effectively restricting the degree of freedom of movement and enhancing the overall rigidity and the accuracy of motion repeatability positioning.

[0022] Anti-slip stabilizing feet are installed at the lower end of the testing support table 1, with anti-slip pads attached to the surface; sealing strips are installed between the side-by-side legs and secured with bolts. Z2-axis slide rails 14 are installed on the inner wall of the legs of the testing support table 1, along with a Z2-axis drive assembly 15 (1.5kW motor with a 10:1 gear ratio reducer). An X-axis slide rail 2 is connected across the two side-by-side Z2-axis slide rail 14 slides, and an X-axis drive assembly 3 (400W motor with a 10:1 gear ratio reducer) is installed on the side wall of the X-axis slide rail 2. A rotary axis drive assembly 4 and a rotary table 5 are installed above the X-axis slide rail 2 slide. A Y-axis slide rail 6 (two parallel rails) is connected to the other slide of the Z2-axis slide rail 14, and a Y-axis drive assembly 7 (2.4kW motor with a 20:1 gear ratio reducer) is installed on the Y-axis slide rail 6. A lateral column is fixed to the side wall of the Y-axis drive assembly 7. A Z1-axis slide rail 8 is mounted on the lateral column, and the bottom of the lateral column is connected to the Z1-axis drive assembly 9 (a 3.5kW motor with brake and a 70-ratio reducer). The lateral column bracket passes through the Y-axis slide rail 6 and is welded to the stabilizing column 10 (both have a U-shaped cross-section). The inner wall of the stabilizing column 10 is bolted to the first limiting sliding seat 12 and the second limiting sliding seat 13 (anti-slip rubber pads are added at the connection). The outer end of the Y-axis slide rail 6 is bolted to the limiting slide strip 11 (with an inclined outer end structure), so that it mates with the wheel recesses of the first and second limiting sliding seats 12 and 13. Ensure that the motors and reducers of the X-axis drive assembly 3, Y-axis drive assembly 7, Z1-axis drive assembly 9, and Z2-axis drive assembly 15 are properly connected.

[0023] Start the equipment and initialize each axis (X, Y, Z1, Z2 axes and rotary table 5). Each drive component performs a self-test. X-axis movement: X-axis drive assembly 3 drives X-axis slide rail 2 (1.5 module, 25 teeth, effective stroke 4000mm) to move the slide along the X-axis to the target position. Y-axis movement: Y-axis drive assembly 7 drives Y-axis slide rail 6 (3 module, 25 teeth, effective stroke 6100mm) to move the slide along the Y-axis. A stable structure ensures smooth operation. Z-axis height adjustment: Z2-axis drive assembly 15 drives Z2-axis slide rail 14 (2 module, 28 teeth, effective stroke 2330mm) to adjust the overall height of the X / Y axes; Z1-axis drive assembly 9 drives Z1-axis slide rail 8 (4 module, 25 teeth, effective stroke 1400mm) to extend the working height of the Z1 axis. Rotational movement: Rotary axis drive assembly 4 controls the rotary table 5 to rotate 180 degrees, completing the testing operation.

[0024] Start the Z1 axis drive assembly 9 (3.5kW motor with brake and 70 ratio reducer), drive the Z1 axis slide rail 8 (4-module 25-tooth specification), and drive the slide block on the side column that mates with the Z1 axis slide rail 8 to move along the Z axis direction, thereby expanding the working height in the Z1 axis direction with an effective stroke of 1400mm.

[0025] The Y-axis drive assembly 7 (2.4kW motor with 20-ratio reducer) drives the slide block on the Y-axis slide rail 6 (3 modules, 25 teeth, effective stroke 6100mm) to move along the Y-axis; the slide block drives the lateral column bracket to move, the bracket passes through the Y-axis slide rail 6 and drives the stabilizing column 10 to move synchronously; the wheel recesses of the first limiting slide block 12 and the second limiting slide block 13 on the inner wall of the stabilizing column 10 and the limiting slide bar 11 (outer end inclined structure) at the outer end of the Y-axis slide rail 6 form a high-precision fit, limiting unexpected displacement, enhancing overall rigidity and motion repeatability positioning accuracy, and realizing stable sliding along the Y-axis.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An XYZR four-axis inspection truss, comprising an inspection support table (1), characterized in that: The inner wall of the table legs of the testing support table (1) is equipped with a Z2 axis slide rail (14), and a Z2 axis drive assembly (15) is installed at the table legs, which drives the slide on the Z2 axis slide rail (14) to move. An X-axis slide rail (2) is installed between two parallel slides. An X-axis drive assembly (3) is provided on the side wall of the X-axis slide rail (2), which drives the slide on the X-axis slide rail (2) to move. A rotary axis drive assembly (4) and a rotary table (5) are installed on the slide, and the rotary axis drive assembly (4) drives the table plate of the rotary table (5) to move. A Y-axis slide rail (6) is connected to another slide on the Z2 axis slide rail (14). The two Y-axis slide rails (6) are arranged in parallel on the testing support table (1). A Y-axis drive assembly (7) is installed on the axis of the Y-axis slide rail (6). The Y-axis drive assembly (7) has a lateral column on its side wall, and a Z1 axis slide rail (8) is installed on the lateral column. The bottom of the lateral column is connected to a Z1 axis drive assembly (9) that is adapted to the Z1 axis slide rail (8) to increase the height of the Z-axis. The bracket of the lateral column passes through the Y-axis slide rail (6) and is connected to the stabilizing column (10). The inner wall of the stabilizing column (10) is provided with a first limiting sliding seat (12) and a second limiting sliding seat (13). The outer end of the Y-axis slide rail (6) is provided with a limiting slide bar (11) that is adapted to the first limiting sliding seat (12) and the second limiting sliding seat (13).

2. The XYZR four-axis detection truss according to claim 1, characterized in that: The lower end of the testing support table (1) is provided with anti-slip stabilizing feet. The surface of the anti-slip stabilizing feet is connected with anti-slip pads by adhesive. The side-by-side support feet of the testing support table (1) are provided with sealing strips and are connected by bolts.

3. The XYZR four-axis detection truss according to claim 2, characterized in that: The X-axis drive assembly (3), Y-axis drive assembly (7), Z1-axis drive assembly (9), and Z2-axis drive assembly (15) all include drive motors and reducers. The X-axis drive motor is a 400W motor and the X-axis reducer is a 10-ratio reducer. The Y-axis drive motor is a 2.4KW motor and the Y-axis reducer is a 20-ratio reducer. The Z1-axis drive motor is a 3.5kW motor with a braking system and the Z1-axis reducer is a 70-ratio reducer. The Z2-axis drive motor is a 1.5kW motor and the Z2-axis reducer is a 10-ratio reducer.

4. The XYZR four-axis detection truss according to claim 3, characterized in that: The X-axis slide rail (2) has a 1.5 module and 25 teeth, with an effective X-axis travel of 4000MM. The Y-axis slide rail (6) has a 3 module and 25 teeth, with an effective Y-axis travel of 6100MM. The Z1 axis slide rail (8) has a 4 module and 25 teeth, with an effective Z1 axis travel of 1400MM. The Z2 axis slide rail (14) has a 2 module and 28 teeth, with an effective Z2 axis travel of 2330MM. The rotation angle of the rotary table (5) is 180 degrees.

5. The XYZR four-axis detection truss according to claim 4, characterized in that: The stabilizing column (10) and the lateral column are welded and fixed, and their cross-sections are U-shaped. The stabilizing column (10) is connected to the first limiting sliding seat (12) and the second limiting sliding seat (13) by bolts, and anti-slip rubber pads are provided at the connection. The wheels of the first limiting sliding seat (12) and the second limiting sliding seat (13) are provided with recessed grooves.

6. The XYZR four-axis detection truss according to claim 5, characterized in that: The limiting slide bar (11) is bolted to the Y-axis slide rail (6). The outer end of the limiting slide bar (11) is designed with a bevel. The beveled limiting slide bar (11) is adapted to the groove of the wheel of the first limiting sliding seat (12) and the second limiting sliding seat (13).

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