Tooling for detecting dragging torque and outer contour

Abstract

The utility model relates to a tool for detecting dragging torque and outer contour, which comprises a tool bottom plate, a tool seat, a dragging torque detection unit, an outer contour dimension measurement unit and a data processing and control system, and is characterized in that the tool bottom plate and the tool seat are positioned through a positioning pin and are in threaded connection and fixation; the tool bottom plate is positioned through the diagonal positioning pins and the trimming pins and installed on a workbench. According to the utility model, dragging torque and outer contour detection modes are integrated, the requirements of workpiece carrying and repositioning are reduced, the detection efficiency is greatly improved, the production takt is shortened, and the efficiency and the yield of the whole assembly line are improved. The integrated structural design is adopted, the two parts work cooperatively, detection errors caused by assembly deviation of traditional split type detection equipment are avoided, and the detection precision is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, specifically an online testing fixture for brake caliper assemblies that integrates drag torque detection and outer contour dimension detection functions. Background Technology

[0002] Traditional brake caliper assembly inspection often requires separate measurements of drag torque and external dimensions. This is not only time-consuming and labor-intensive, but can also lead to inconsistencies in test results due to repeated assembly and disassembly. Furthermore, traditional online drag torque testing fixtures use a separate testing disc and a separate fixture for mounting the brake caliper assembly. This makes it difficult to effectively guarantee geometric tolerances such as parallelism and perpendicularity, resulting in significant deviations between test results and actual values. Therefore, the market urgently needs an innovative fixture that can simultaneously and efficiently and accurately perform these two key indicator tests, effectively and precisely reproducing actual usage conditions. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a fixture for detecting drag torque and outer contour, enabling one-stop synchronous detection of drag torque and outer contour dimensions. This reduces the need for workpiece handling and repositioning, greatly improving detection efficiency, shortening production cycle time, and increasing the efficiency and output of the entire assembly line. The integrated structural design is mainly reflected in two aspects: firstly, it realizes the integration of two functional detections at one station, ensuring precise positioning and collaborative operation between the drag torque detection module and the outer contour dimension measurement module; secondly, it integrates the detection disc and brake caliper assembly fixture into a single unit. These two aspects fundamentally avoid detection errors introduced by assembly deviations in traditional split-type detection equipment, significantly improving detection accuracy. When equipped with a high-sensitivity torque sensor and precision optical measuring elements, it ensures high-precision, real-time monitoring of the drag torque and outer contour of the brake caliper assembly on a continuous production line. Furthermore, this detection station can be upgraded according to budget, and visual inspection can be added simultaneously during product inspection to prevent mis-assembled or missing parts from being shipped out.

[0004] A fixture for detecting drag torque and outer contour, characterized in that it includes a fixture base plate, a fixture seat, a drag torque detection unit, an outer contour dimension measurement unit, and a data processing and control system. The fixture base plate and the fixture seat are positioned by locating pins and fixed by threaded connection. The fixture base plate is positioned and installed on the worktable by diagonal locating pins and chamfered pins.

[0005] As described above, the drag torque detection unit includes a detection disc, a rotating seat, a bearing housing, an angular contact ball bearing, a fixing rod, a caliper fixing structure, and a locking nut. The caliper fixing structure is fixed to the fixture seat by a threaded sleeve and bolts. The first side of the rotating seat is connected to a motor via a spline or a shift fork, and is driven to rotate by the motor. The second side of the rotating seat drives the bearing housing to rotate via a shift fork. The bearing housing and the detection disc are connected by an interference fit and a spacer bolt. The detection disc rotates along the inner ring of the angular contact ball bearing. The detection disc and the angular contact ball bearing are connected by an interference fit and a spacer bolt. The angular contact ball bearing is fixed to the fixing rod by a locking nut and a spacer.

[0006] As described above, the tooling unit for measuring the outer contour dimensions has both manual and automatic modes.

[0007] The manual mode includes: a contour detection component, a handle, a locking sleeve, and a deep groove ball bearing. The contour detection component and the handle are fixedly connected by bolts. The contour detection component and the deep groove ball bearing are fixedly connected by a flange and bolts, and the axial direction of the contour detection component is restricted by the locking sleeve.

[0008] The automatic mode uses an external laser detector or high-resolution camera to perform three-dimensional scanning and determination.

[0009] As described above, the data from the drag torque detection unit and the outer contour dimension measurement unit are independent of each other and do not interfere with each other.

[0010] As described above, the tooling is provided with handles on both sides to facilitate its handling.

[0011] The tooling described above also includes reinforcing ribs to enhance the overall strength of the tooling.

[0012] As described above, the tooling has a custom bolt inside the threaded sleeve that mates with the threaded hole on the component to be tested. Before it is fixed, the bolt can move freely inside the threaded sleeve, and the inner hole of the threaded sleeve has a small hole to prevent the bolt from coming out.

[0013] This utility model has the following advantages:

[0014] 1. Significantly shortens the testing cycle and improves production efficiency;

[0015] 2. Through integrated design and precision sensing technology, the accuracy and reliability of test results are effectively improved. Furthermore, the integrated drag torque station improves the parallelism of the test disc relative to the brake caliper assembly bracket mounting surface from the original 0.05mm accuracy of the separate type to within 0.02mm. This effectively eliminates interference and misjudgment caused by tooling errors in product testing.

[0016] 3. Facilitates integration into automated production lines, reduces reliance on manpower, and lowers overall costs. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the present invention. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Depend on Figure 1 As shown, this embodiment provides a tooling for detecting drag torque and outer contour, including a tooling base plate 1, a tooling seat 2, a drag torque detection unit, an outer contour dimension measurement unit, and a data processing and control system. The tooling base plate 1 and the tooling seat 2 are positioned by positioning pins and fixed by threaded connection. The tooling base plate 1 is positioned by diagonal positioning pins and chamfered pins and installed on the worktable.

[0020] Furthermore, the drag torque detection unit includes a detection disc 7, a rotating seat 12, a bearing housing 15, an angular contact ball bearing 5, a fixing rod 4, a caliper fixing structure 6, and a locking nut 14. The caliper fixing structure 6 is fixed to the tooling base 2 by a threaded sleeve and bolts. The first side of the rotating seat 12 is connected to the motor by a spline or a shift fork and is driven to rotate by the motor. The second side of the rotating seat 12 drives the bearing housing 15 to rotate by a shift fork. The bearing housing 15 and the detection disc 7 are connected by an interference fit and a spacer bolt in the middle. The detection disc 7 rotates along the inner ring of the angular contact ball bearing 5. The detection disc 7 and the angular contact ball bearing 5 are connected by an interference fit and a spacer bolt in the middle. The angular contact ball bearing 5 is fixed to the fixing rod 4 by the locking nut 14 and a spacer.

[0021] Furthermore, the outer contour dimension measurement unit is divided into manual mode and automatic mode.

[0022] The manual mode includes: contour detection element 8, handle 9, locking sleeve 11, deep groove ball bearings 10 and 13. The contour detection element 8 and handle 9 are fixedly connected by bolts. The contour detection element 8 and deep groove ball bearing 10 are fixedly connected by flange and bolts, and the axial direction of the contour detection element 8 is restricted by the locking sleeve 11.

[0023] The automatic mode uses an external laser detector or high-resolution camera to perform three-dimensional scanning and determination.

[0024] Working principle:

[0025] like Figure 1 As shown, the component to be tested 16 is fixed onto the caliper fixing structure 6, and the testing process is started through the automatic control program;

[0026] The drag torque detection unit simulates actual working conditions by applying pressure to inflate the brake (friction pads clamp the brake disc), maintaining pressure, deflating (releasing the brake), and placing it for a specified time. During the process, the motor drives the detection disc 7 to rotate through the rotating seat 12, measuring the drag force value and plotting the corresponding curve.

[0027] The outer contour dimension measurement is divided into manual and automatic modes. In manual mode, the user manually moves the contour detection component 8 by swinging the handle 9 to check whether it can pass smoothly. In automatic mode, the outer contour detection unit synchronously scans and obtains the precise outer dimension data of the brake caliper, compares it with the value set by the system, and if it is qualified, a green light is given to pass, and if it is unqualified, an alarm is triggered and the vehicle is isolated and not released.

[0028] Furthermore, the data from the drag torque detection unit and the outer contour dimension measurement unit are independent of each other and do not interfere with each other.

[0029] Furthermore, each side of the tooling is provided with a handle.

[0030] Furthermore, it also includes reinforcing ribs.

[0031] Furthermore, the threaded sleeve has a custom bolt that mates with the threaded hole on the component to be tested, and the bolt can move freely inside the threaded sleeve before it is fixed. The inner hole of the threaded sleeve has a small hole to prevent the bolt from coming out.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0033] While the specific embodiments of this utility model have been described above, they are not intended to limit the scope of protection of this utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of this utility model are still within the scope of protection of this utility model.

Claims

1. A tooling for detecting drag torque and outer contour, characterized in that, It includes a tooling base plate (1), a tooling seat (2), a drag torque detection unit, an outer contour dimension measurement unit, and a data processing and control system. The tooling base plate (1) and the tooling seat (2) are positioned by positioning pins and fixed by threaded connection. The tooling base plate (1) is positioned by diagonal positioning pins and chamfered pins and installed on the worktable.

2. The tooling as described in claim 1, characterized in that, The drag torque detection unit includes a detection disc (7), a rotating seat (12), a bearing seat (15), an angular contact ball bearing (5), a fixing rod (4), a caliper fixing structure (6), and a locking nut (14). The caliper fixing structure (6) is fixed to the tooling seat (2) by a threaded sleeve and bolts. The first side of the rotating seat (12) is connected to the motor by a spline or a fork and is driven to rotate by the motor. The second side of the rotating seat (12) drives the bearing seat (15) to rotate by a fork. The bearing seat (15) and the detection disc (7) are connected by an interference fit and a spacer bolt in the middle. The detection disc (7) rotates along the inner ring of the angular contact ball bearing (5). The detection disc (7) and the angular contact ball bearing (5) are connected by an interference fit and a spacer bolt in the middle. The angular contact ball bearing (5) is fixed to the fixing rod (4) by a locking nut (14) and a spacer.

3. The tooling as described in claim 1, characterized in that, The outer contour dimension measurement unit is divided into manual mode and automatic mode. The manual mode includes: a contour detection component (8), a handle (9), a locking sleeve (11), a deep groove ball bearing (10) and (13). The contour detection component (8) and the handle (9) are fixedly connected by bolts. The contour detection component (8) and the deep groove ball bearing (10) are fixedly connected by flanges and bolts, and the axial direction of the contour detection component (8) is restricted by the locking sleeve (11). The automatic mode uses an external laser detector or high-resolution camera to perform three-dimensional scanning and determination.

4. The tooling as described in claim 1, characterized in that, The data from the drag torque detection unit and the outer contour dimension measurement unit are independent of each other.

5. The tooling as described in claim 1, characterized in that, The tooling is equipped with handles on both sides.

6. The tooling as described in claim 1, characterized in that, Including reinforcing ribs (3).

7. The tooling as described in claim 2, characterized in that, The threaded sleeve has a custom bolt that fits into the threaded hole on the component to be tested (16), and the bolt can move freely inside the threaded sleeve before it is fixed. The inner hole of the threaded sleeve has a small hole that restricts the bolt from coming out.

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