Detection mechanism for automobile suspension swing arm ball pin

Abstract

The utility model discloses an automobile suspension swing arm ball pin detection mechanism, which comprises a detection tool bottom plate, a supporting seat, a clamp and a ball pin detection assembly, and is characterized in that the ball pin detection assembly comprises a base, a base connecting block, a sliding pin seat, a sliding pin seat connecting block, a dial indicator, a dial indicator calibration seat, a Z-direction metering warping block, a lifting pin and a dial indicator calibration pin. According to the utility model, the structure design is reasonable, quantitative detection of the central point of the ball pin by a mechanical detection tool is effectively realized, numerical value conversion of three-coordinate detection is avoided, the detection efficiency is improved, and the detection cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile suspension swing arm inspection tools, in particular to a ball pin inspection mechanism for automobile suspension swing arms. Background Art

[0002] The suspension system usually includes springs, shock absorbers, stabilizer bars, and various connecting rods and swing arms, which work together to absorb the impact caused by uneven road surfaces and keep the wheels in contact with the ground, ensuring driving comfort and vehicle handling. The automobile suspension swing arm is an important component connecting the wheels and the body, and plays a vital role in the stability and safety of the vehicle. As part of the suspension system, one of the main functions of the swing arm is to transfer the force and torque exerted on the wheel to the body, thereby ensuring the stability of the vehicle when driving.

[0003] Automobile suspension swing arms are often assembled with ball pin assemblies. Since the ball pin body is assembled in the ball pin sub-assembly, traditionally, the detection of the center point of the ball pin after assembly is limited to the numerical conversion after three-coordinate detection. The conversion process is not only prone to errors, but also cumbersome, low in efficiency and high in cost. Utility Model Content

[0004] The utility model aims to remedy the defects of the prior art and to provide a ball pin detection mechanism for automobile suspension swing arm. After the sample is assembled, the inspection tool can be used for quantitative detection, the value can be directly read out, and the conformity of the ball pin assembly size can be quickly determined.

[0005] The utility model is realized through the following technical solutions:

[0006] A ball pin detection mechanism for an automobile suspension swing arm comprises a check fixture bottom plate, a test sample support seat, a clamp and a ball pin detection mechanism are installed on the check fixture bottom plate, the clamp is located on one side of the test sample support seat, the ball pin detection mechanism comprises a base, a base connecting block and a sliding pin seat, the base is fixedly installed on the check fixture bottom plate, the base connecting block is fixedly installed on the base, a center hole for the sliding pin seat to be inserted is opened on the base connecting block, the center hole is larger than the outer diameter of the sliding pin seat, a limiting boss is provided on the outer side of the sliding pin seat, the sliding pin seat is installed in the center hole of the base connecting block, the limiting boss is supported on the base connecting block, an axial ball pin mounting hole is opened on the sliding pin seat, an X-direction detection port and a Y-direction detection port are respectively provided on two adjacent side surfaces of the base connecting block, and an X-direction detection port is provided on the base connecting block. The detection port and the Y-direction detection port are connected with the central hole of the base connecting block, and the X-direction detection port and the Y-direction detection port can be used for inserting the detection dial indicator in sequence to detect the reading value. A Z-direction meter block mounting hole is opened on one side of the base, and a Z-direction meter block is installed in the Z-direction meter block mounting hole. One end of the Z-direction meter block extends into the inner side of the base, and a vertical ejector pin is installed at the end, and the ejector pin is inserted into the ball pin mounting hole of the sliding pin seat. A dial indicator calibration seat support block is provided on the outer side of the base, and the middle part of the Z-direction meter block is hinged to the dial indicator calibration seat support block, and a dial indicator calibration seat is fixed on the top of the dial indicator calibration seat support block. The dial indicator calibration seat is located above the other end of the Z-direction meter block, and a Z-direction detection port is provided on the dial indicator calibration seat, and the Z-direction detection port can be used for inserting a detection dial indicator to detect zeroing and detection reading value.

[0007] A sliding pin seat connecting block is fixed at the bottom end of the sliding pin seat, and the outer diameter of the sliding pin seat connecting block is larger than the inner diameter of the center hole of the base connecting block.

[0008] It also includes a sliding pin seat calibration hand-held block, which includes an annular block on which a hand-held handle is fixed. When the annular block is sleeved on the outside of the limiting boss on the outside of the sliding pin seat, the outer wall of the limiting boss fits with the inner wall of the annular block. The base connecting block is a square block, and the outer diameter of the annular block is equal to the width of the base connecting block.

[0009] It also includes a dial indicator calibration pin, which is T-shaped and after being inserted into the ball pin mounting hole of the sliding pin seat, the upper end surface covers the upper end of the sliding pin seat.

[0010] The utility model has the advantages that the utility model has reasonable structural design, effectively realizes the quantitative detection of the center point of the ball pin by the mechanical inspection fixture, avoids the numerical value conversion of the three-coordinate detection, improves the detection efficiency, and saves the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the ball pin detection mechanism of the utility model;

[0013] Figure 3 This is a structural diagram of using a sliding pin holder zeroing hand-held block to zero the sliding pin holder;

[0014] Figure 4 This is a schematic diagram of the structure of the sliding pin seat zero calibration handheld block of the utility model;

[0015] Figure 5 The utility model is a schematic diagram of the structure of the dial indicator calibration pin. DETAILED DESCRIPTION

[0016] like Figure 1 , 2As shown, a ball pin detection mechanism for a vehicle suspension swing arm includes a test fixture bottom plate 1, on which a test sample support seat 2, a clamp 3 and a ball pin detection mechanism are installed, the clamp 3 is located on one side of the test sample support seat 2, one end of the test sample 14 is located on the test sample support seat 2 and is pressed by the clamp 3; the ball pin detection mechanism includes a base 4, a base connecting block 5 and a sliding pin seat 6, the base 4 is fixedly installed on the test fixture bottom plate 1, and the base connecting block 5 is fixed Installed on the base 4, a center hole for the sliding pin seat 6 to be inserted is opened on the base connection block 5, the center hole is larger than the outer diameter of the sliding pin seat 6, a limiting boss 15 is provided on the outer side of the sliding pin seat 6, the sliding pin seat 6 is installed in the center hole of the base connection block 5, the limiting boss 15 is supported on the base connection block 5, the sliding pin seat 6 can translate in the center hole of the base connection block 5, an axial ball pin installation hole is opened on the sliding pin seat 6, and the ball pin 16 of the test sample 14 is inserted into the ball pin installation hole when in use; An X-direction detection port 17 and a Y-direction detection port 18 are respectively provided on two adjacent sides of the base connection block 5, and the X-direction detection port 17 and the Y-direction detection port 18 are connected to the central hole of the base connection block 5. The detection port 17 and the detection port 18 can be used for the detection dial gauge 8 to be inserted in sequence for detection readings. A Z-direction meter tilting block mounting hole is opened on one side of the base 4, and a Z-direction meter tilting block 10 is installed in the Z-direction meter tilting block mounting hole. One end of the Z-direction meter tilting block 10 extends into the inner side of the base 4, and a vertical A top pin 11 is inserted into the ball pin mounting hole of the sliding pin seat 6. A dial gauge calibration seat support block 19 is provided on the outside of the base 4. The middle part of the Z-axis meter block 10 is hinged to the dial gauge calibration seat support block 19. A dial gauge calibration seat 9 is fixed to the top of the dial gauge calibration seat support block 19. The dial gauge calibration seat 9 is located above the other end of the Z-axis meter block 10. A Z-axis detection port 20 is provided on the dial gauge calibration seat 10. The detection port 20 can be used for the detection of the dial gauge 8 to insert and detect zeroing and reading. After the ball pin 16 is placed in the ball pin mounting hole, the lower end supports the top pin 11. At this time, it is a lever. The dial gauge 8 is inserted into the Z-axis detection port 20 to support the Z-axis meter block 10 below to directly measure the value.

[0017] A sliding pin seat connection block 7 is fixed at the bottom end of the sliding pin seat 6, and the outer diameter of the sliding pin seat connection block 7 is larger than the inner diameter of the center hole of the base connection block 5. When the sliding pin seat 6 moves in translation, it plays a role of translation limit, and also plays a role of protecting the sliding pin seat 6, so that the sliding pin seat cannot be taken out in the vertical direction to prevent loss.

[0018] It also includes a sliding pin seat zero calibration hand-held block 13, which includes an annular block 13-1, on which a hand-held handle 13-2 is fixed, and when the annular block 13-1 is sleeved on the outer side of the limiting boss 15 on the outer side of the sliding pin seat 6, the outer wall of the limiting boss 15 fits with the inner wall of the annular block 13-1, and the base connecting block 5 is a square block, and the outer diameter of the annular block 13-1 is equal to the width of the base connecting block 5. Before use, push the sliding pin seat 6 to the center position (not accurate at this time), and then insert the sliding pin seat zero calibration hand-held block 13, align the outer wall of the annular block 13-1 with the outer wall edge of the base connecting block 5, and calibrate it completely.

[0019] The dial gauge calibration pin 12 is also included. The dial gauge calibration pin is T-shaped and is inserted into the ball pin mounting hole of the sliding pin seat 6. The upper end surface covers the upper end of the sliding pin seat. The dial gauge calibration pin 12 is inserted into the ball pin mounting hole to calibrate the dial gauge 8 to zero.

[0020] Through the design of the above structure, before testing, first insert the dial indicator calibration pin 12 along the ball pin mounting hole of the sliding pin seat 6, then pre-push the sliding pin seat 6 to the center position, and then use the sliding pin seat zeroing handheld block 13 to push the sliding pin seat to the center position to achieve accurate zeroing of the sliding pin seat 6, insert the dial indicator 8 into place along the Z-direction detection port 20 of the dial indicator calibration seat 9, click zeroing, take out the sliding pin seat zeroing handheld block 13, dial indicator calibration pin 12 and dial indicator 8 in turn, a locating pin is provided on the test sample support seat 2, install the test sample 14 along the locating pin of the test sample support seat 2 and the ball pin mounting hole of the sliding pin seat 6, clamp the test sample, insert the dial indicator 8 in turn, read the X-direction deviation value +0.08mm, the Y-direction deviation value -0.12mm and the Z-direction deviation value +0.10mm respectively, and according to the ball pin ball center point position tolerance of ±0.75mm, it is judged that the tolerance requirements are met and the sample is qualified. It effectively realizes the quantitative detection of the center point of the ball pin by the mechanical inspection fixture, avoids the numerical conversion of three-coordinate detection, improves the detection efficiency, and saves the detection cost.

Claims

1. A ball pin detection mechanism for automobile suspension swing arm, Features: The invention comprises a bottom plate of a testing tool, on which a testing sample support seat, a clamp and a ball pin detection mechanism are installed, the clamp is located at one side of the testing sample support seat, the ball pin detection mechanism comprises a base, a base connecting block and a sliding pin seat, the base is fixedly installed on the bottom plate of the testing tool, the base connecting block is fixedly installed on the base, a center hole for inserting the sliding pin seat is opened on the base connecting block, the center hole is larger than the outer diameter of the sliding pin seat, a limiting boss is arranged on the outer side of the sliding pin seat, the sliding pin seat is installed in the center hole of the base connecting block, the limiting boss is supported on the base connecting block, an axial ball pin mounting hole is opened on the sliding pin seat, an X-direction detection port and a Y-direction detection port are respectively arranged on two adjacent side surfaces of the base connecting block, and the X-direction detection port is provided on the sliding pin seat. The measuring port and the Y-direction detection port are connected with the central hole of the base connecting block, a Z-direction meter block mounting hole is opened on one side of the base, a Z-direction meter block is installed in the Z-direction meter block mounting hole, one end of the Z-direction meter block extends into the inner side of the base, and a vertical ejector pin is installed at the end, the ejector pin is inserted into the ball pin mounting hole of the sliding pin seat, a dial indicator calibration seat support block is provided on the outer side of the base, the middle part of the Z-direction meter block is hinged to the dial indicator calibration seat support block, a dial indicator calibration seat is fixed on the top of the dial indicator calibration seat support block, the dial indicator calibration seat is located above the other end of the Z-direction meter block, a Z-direction detection port is provided on the dial indicator calibration seat, and a dial indicator is also included, and the dial indicator is inserted into the X-direction detection port, the Y-direction detection port and the Z-direction detection port in sequence for detection.

2. A ball pin detection mechanism for a vehicle suspension swing arm according to claim 1, Features: A sliding pin seat connecting block is fixed at the bottom end of the sliding pin seat, and the outer diameter of the sliding pin seat connecting block is larger than the inner diameter of the center hole of the base connecting block.

3. The ball pin detection mechanism for a vehicle suspension swing arm according to claim 1, Features: It also includes a sliding pin seat calibration hand-held block, which includes an annular block on which a hand-held handle is fixed. When the annular block is sleeved on the outside of the limiting boss on the outside of the sliding pin seat, the outer wall of the limiting boss fits with the inner wall of the annular block. The base connecting block is a square block, and the outer diameter of the annular block is equal to the width of the base connecting block.

4. A ball pin detection mechanism for a vehicle suspension swing arm according to claim 3, Features: It also includes a dial indicator calibration pin, which is T-shaped and after being inserted into the ball pin mounting hole of the sliding pin seat, the upper end surface covers the upper end of the sliding pin seat.

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