Tooling fixture for processing rear case

Abstract

The tool clamp for trunk body machining of the application comprises a chassis, a clamping assembly arranged on the chassis, and a movable detection assembly; the detection shell and the lifting part can dynamically cover the clamping assembly, the detection device can capture the wear state of the clamping surface from multiple angles in real time, thereby quantifying the change of the positioning gap, and the retractable detection assembly can effectively reduce the additional floor space and adapt to different machining requirements. At the same time, the sealing design of the sealing strip and the sealing ring ensures the stability of the contact surface between the clamp and the workpiece during the detection process, and reduces the influence of external interference on the detection result. Through the above technical means, the wear state of the clamp can be accurately identified and fed back to the machining system in real time, providing data support for real-time calibration of the machine tool coordinate system and the workpiece coordinate system, avoiding triggering the abnormal correction mechanism of the tool magazine due to positioning deviation, and finally realizing dynamic maintenance of machining precision and optimization of production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing, specifically to a tooling fixture for processing rear cargo box bodies. Background Technology

[0002] The rear housing of an automotive engine or gear housing is a typical example of a complex box-type part. Its structure typically includes multiple bearing holes, positioning holes, oil passages, and machined surfaces, and must meet high-precision geometric tolerances and surface quality requirements. During the machining process, tooling fixtures, as key process equipment, are responsible for positioning, clamping, and supporting the workpiece.

[0003] In practical applications, existing tooling fixtures for rear housing machining may experience workpiece misalignment due to manufacturing errors or wear on positioning components. Furthermore, prolonged fixture wear can widen positioning gaps, further exacerbating workpiece displacement. Such deviations can indirectly affect the tool magazine's positioning logic through the machine tool's feedback system. For example, in CNC machine tools, the tool change path typically relies on the precise calibration of the workpiece coordinate system. Fixture positioning errors can cause offsets between the workpiece and machine tool coordinate systems. When the machine tool detects an anomaly via a laser rangefinder or encoder, it may trigger the tool magazine's automatic correction mechanism, leading to tool change path deviations or an increased risk of tool-workpiece collisions, thus affecting machining accuracy. Utility Model Content

[0004] To address the above problems, the present invention provides the following technical solution: Tooling fixtures for rear box assembly include: Chassis; Clamping assembly, located on the chassis surface, is used to clamp the parts to be processed. The active detection assembly includes a detection shell disposed on the surface of the chassis, a detection device disposed inside the detection shell for detecting the wear of the surface of the clamping assembly, and a lifting part disposed between the chassis and the detection shell, wherein the surface of the chassis is provided with an active groove adapted to the detection shell. The lifting unit can control the detection shell to rise from the movable slot and cover the outside of the clamping assembly.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the clamping assembly includes a support plate disposed on the surface of the chassis, a pressing device disposed on the surface of the support plate, and a lifting device disposed on the surface of the support plate.

[0007] Furthermore, the movable groove is provided with a support column, and the clamping assembly is located on the surface of the support column.

[0008] Furthermore, the lifting unit includes a drive rack disposed on the surface of the detection housing, a drive gear meshing with the drive rack, and a motor providing power to the drive gear. The chassis has a chamber adapted to the motor and the drive gear. Furthermore, the top of the detection shell is provided with an opening adapted to the clamping assembly, and the surface of the detection shell is provided with a sealing strip that can fill the gap between the detection shell and the movable groove.

[0009] Furthermore, the inside of the detection shell is provided with a sealing ring that can seal the gap between the detection shell and the support column.

[0010] Furthermore, the detection device includes a camera located inside the detection housing, which is capable of capturing images of the clamping assembly from above, below, and around it.

[0011] Furthermore, a sealant is provided between the detection shell and the chassis, which can enclose the exterior of the detection shell inside.

[0012] Beneficial effects Compared to existing technologies, this application utilizes a detection shell and lifting mechanism to dynamically cover the clamping assembly. The detection device monitors the wear state of the clamping surface from multiple angles in real time, thereby quantifying changes in the positioning gap. The retractable detection assembly effectively reduces additional space requirements, adapting to different machining needs. Simultaneously, the sealing design of the sealing strip and ring ensures the stability of the contact surface between the fixture and the workpiece during detection, reducing the impact of external interference on the detection results. Through these technical means, the fixture wear state can be accurately identified and synchronously fed back to the machining system, providing data support for real-time calibration of the machine tool coordinate system and the workpiece coordinate system. This avoids triggering abnormal tool magazine correction mechanisms due to positioning deviations, ultimately achieving dynamic maintenance of machining accuracy and optimization of production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the invention's cross-sectional structure; Figure 2 A schematic diagram of the three-dimensional structure of the clamping component for the invention; Figure 3 A three-dimensional structural diagram of the detection shell for the invention; Figure 4 For invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 5 For invention Figure 1 Enlarged structural diagram at point B; The attached diagram lists the components represented by each number as follows: 1. Chassis; 2. Clamping assembly; 21. Support plate; 22. Lowering loading device; 23. Lifting device; 3. Movable detection assembly; 31. Detection shell; 32. Detection device; 33. Lifting part; 331. Drive rack; 332. Drive gear; 333. Motor; 34. Sealing strip; 35. Sealing ring; 4. Sealing cover; 5. Support column. Detailed Implementation

[0015] To facilitate understanding of the present invention, a more complete description of the invention will be provided below with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] It should be noted that the terms "center," "left," "square," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the technical product is usually placed in during use. They are only for the convenience of describing the technology and simplifying 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 limitations on the technology.

[0019] Please see Figure 1-4 The tooling fixture for processing the rear box includes a chassis 1, a clamping assembly 2 mounted on the chassis 1, and an activity detection assembly 3.

[0020] The clamping assembly 2 is a common type of clamping device in the prior art, specifically including a support plate 21 on the surface of the chassis 1, a pressing device 22 on the surface of the support plate 21, and a lifting device 23 on the surface of the support plate 21. Through the coordinated action of the support plate 21 and the lifting device 23, the clamping assembly 2 can achieve stable clamping of the rear box workpiece. Simultaneously, the design of the pressing device 22 enhances the uniformity of the clamping force, avoiding processing deviations caused by unstable clamping.

[0021] The active detection component 3 includes a detection shell 31 disposed on the surface of the chassis 1, a detection device 32 disposed inside the detection shell 31 for detecting the wear of the surface of the clamping component 2, and a lifting part 33 disposed between the chassis 1 and the detection shell 31. The surface of the chassis 1 is provided with a movable groove adapted to the detection shell 31. The lifting part 33 can control the detection shell 31 to rise from the movable groove and cover the outside of the clamping component 2. This design, by driving the detection shell 31 to dynamically cover the clamping component 2 through the lifting part 33, can detect the wear state of the clamping surface in real time during the use of the fixture, effectively solving the problem of widening positioning gap caused by long-term use of traditional fixtures, and avoiding interference with machining accuracy due to workpiece installation position deviation.

[0022] Considering the support for the clamping assembly 2, a support column 5 is provided inside the movable slot. The clamping assembly 2 is located on the surface of the support column. The lifting part 33 includes a drive rack 331 disposed on the surface of the detection shell 31, a drive gear 332 meshing with the drive rack 331, and a motor 333 providing power to the drive gear 332. The chassis 1 has a chamber adapted to the motor 333 and the drive gear 332. Through the linkage structure of the drive rack 331 and the gear, combined with the sealed chamber design, the stability of the lifting action of the detection shell 31 is ensured, and external debris or cutting fluid is prevented from entering the internal mechanical structure, thus extending the service life of the clamp.

[0023] To prevent debris from entering the movable groove during processing and affecting the subsequent movement of the detection shell 31, the top of the detection shell 31 is provided with an opening adapted to the clamping assembly 2. The surface of the detection shell 31 is provided with a sealing strip 34 that can fill the gap between the detection shell 31 and the movable groove, and the inside of the detection shell 31 is provided with a sealing ring 35 that can seal the gap between the detection shell 31 and the support column. Through the double sealing design of the sealing strip 34 and the sealing ring 35, foreign objects in the processing environment can be effectively prevented from entering, while ensuring the sealing and smooth movement of the detection shell 31 during the lifting process, and the working reliability of the lifting detection device 32.

[0024] In some embodiments, the detection device 32 includes a camera disposed inside the detection housing 31. The camera can capture images of the clamping assembly 2 from above, below, and around it. A sealing cover 4 is also provided between the detection housing 31 and the chassis 1, which encloses the exterior of the detection housing 31. Through the real-time imaging function of the multi-angle camera, wear marks on the surface of the clamping assembly 2 can be accurately captured. Combined with the dustproof protection of the sealing cover 4, clear image data is provided for the visual analysis of wear conditions. This assists the machine tool control system in dynamically calibrating the workpiece coordinate system, avoiding abnormal tool change paths or workpiece collision risks caused by fixture positioning errors, and significantly improving the safety and efficiency of the machining process.

[0025] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical elements and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tooling fixture for machining a rear box body, characterized in that, include: Chassis (1); Clamping assembly (2), which is disposed on the surface of chassis (1), is used to clamp the parts to be processed; The active detection component (3) includes a detection shell (31) disposed on the surface of the chassis (1), a detection device (32) disposed inside the detection shell (31) for detecting the wear of the surface of the clamping component (2), and a lifting part (33) disposed between the chassis (1) and the detection shell (31). The surface of the chassis (1) is provided with an active groove adapted to the detection shell (31). The lifting unit (33) can control the detection shell (31) to rise from the movable slot and cover the outside of the clamping assembly (2).

2. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The clamping assembly (2) includes a support plate (21) disposed on the surface of the chassis (1), a pressing device (22) disposed on the surface of the support plate (21), and a lifting device (23) disposed on the surface of the support plate (21).

3. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The movable groove is provided with a support column (5), and the clamping assembly (2) is located on the surface of the support column (5).

4. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The lifting unit (33) includes a drive rack (331) disposed on the surface of the detection shell (31), a drive gear (332) meshing with the drive rack (331), and a motor (333) providing power to the drive gear (332). The chassis (1) has a chamber inside that is adapted to the motor (333) and the drive gear (332).

5. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The top of the detection shell (31) is provided with an opening that is adapted to the clamping assembly (2), and the surface of the detection shell (31) is provided with a sealing strip (34) that can fill the gap between the detection shell (31) and the movable groove.

6. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The detection housing (31) is provided with a sealing ring (35) inside, which can seal the gap between the detection housing (31) and the support column.

7. The tooling fixture for machining a rear box body according to claim 1, characterized in that: The detection device (32) includes a camera located inside the detection housing (31), which is capable of taking pictures of the clamping assembly (2) from above, below and around it.

8. The tooling fixture for machining a rear box body according to claim 1, characterized in that: A sealing cover (4) is provided between the detection shell (31) and the chassis (1), and the sealing cover (4) can cover the outside of the detection shell (31) inside it.

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