Test tool for testing automobile parts

Abstract

The invention discloses a test tool for testing automobile parts. The test tool comprises a test platform, the fixed end is arranged on the connecting frame of the test platform and is used for connecting a connecting part of a to-be-tested accessory, so that a mounting hole and an arm part of the to-be-tested accessory can be exposed; the connecting frame can change the angle relative to the test platform and is used for adjusting the specified position of the fixed end between a first position or a second position, the first position is the test position of the mounting hole, and the second position is the test position of the mounting hole. In other words, the axis direction D1 of the fixed end is adjusted to the specified position with the deflection angle of alpha degrees relative to the loading force direction D2 of the loading component; the second position is a testing position of the arm part, namely, the direction D1 of the axis where the fixed end is located is adjusted to a parallel specified position relative to the loading force direction D2 of the loading component, so that a to-be-tested accessory with different detection parts and an included angle alpha formed by the loading directions required by the different detection parts can be tested on one detection tool; therefore, the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile performance test devices, and in particular to a test fixture for testing automobile accessories. Background Art

[0002] For the testing of automotive parts, the applicant generally uses test fixtures such as "Publication No. CN217483876U" or "Publication No. CN217483876U", all of which use a test platform, a connecting mechanism or a loading mechanism to perform loading tests on the workpiece to be tested, or a workbench, an actuator fixed on the gantry, and a tooling mechanism for applying loads similar to the "A comprehensive test bench and method for engineering machinery tracks" with application No. CN202410125314.8. This type of test fixture is suitable for loading tests on one part of the workpiece to be tested. If the workpiece to be tested has multiple parts that need to be tested, it may be necessary to replace different test fixtures.

[0003] If the workpiece to be tested is Figure 1 The shock absorber fork shown comprises a connecting portion 1' for connecting to a shock absorber, two arms 3' coaxially arranged with the connecting portion 1', and a mounting hole 2' provided on the outer wall of the connecting portion 1' for mounting a stabilizer bar. When the shock absorber fork is in use, the force direction of the connecting portion 1' forms an angle α with the force direction of the mounting hole 2'. To ensure the reliability of the suspension system, the working load test of the mounting hole 2' becomes crucial. However, due to the special structure of the shock-absorbing fork, that is, the force direction of the connecting portion 1' forms an angle α with the force direction of the mounting hole 2', if any of the above-mentioned test fixtures is used to test the working load of the mounting hole 2', the following problems will exist: First, the setting position of the test platform for connecting the workpiece to be tested and the fixture mechanism for applying the load is generally fixed, and only one part can be loaded, that is, only the two arms 3' can be tested; since they are different test parts of the same workpiece to be tested, if the mounting hole 2' needs to be tested accordingly, it is necessary to replace the test fixture or change the test site, which is relatively cumbersome for the operator's testing process and needs further improvement. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a test fixture for automobile parts testing that can reduce the workload required by operators during the inspection process in response to the above-mentioned existing technical status, and is particularly suitable for the situation where the loading directions required for different inspection parts of the same inspection workpiece form an angle α.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: the test tooling for automobile parts testing comprises:

[0006] Test platform;

[0007] A loading component is arranged on the test platform;

[0008] A connecting member, used to connect the accessory to be tested to the loading end of the loading member;

[0009] The detection part of the accessory to be tested includes a mounting hole and an arm, the arm is in the same straight line relative to the loading force direction D2 of the loading member, and the mounting hole forms an angle α with respect to the loading force direction D2 of the loading member; it is characterized in that:

[0010] A fixed end, provided on the connecting frame of the test platform, used to connect to the connecting portion of the accessory to be tested so that the mounting hole and the arm of the accessory to be tested can be exposed;

[0011] The connecting member comprises a first connecting component for connecting the mounting hole and a second connecting component for connecting the arm portion, wherein the first connecting component and the second connecting component are selectively configured to be connected to the loading end of the loading member;

[0012] The connecting frame can change its angle relative to the test platform, and is used to adjust the specified position of the fixed end between the first position and the second position, wherein the first position is the test position of the mounting hole, that is, the axis direction D1 of the fixed end is adjusted to a specified position with a deflection angle of α degrees compared to the loading force direction D2 of the loading member;

[0013] The second position is a test position of the arm, that is, the axial direction D1 of the fixed end is adjusted to a specified position parallel to the loading force direction D2 of the loading member.

[0014] In order to detect the working load of the mounting hole, preferably, the first connecting assembly includes a first connecting member for connecting the mounting hole and a first transmission arm connected to the first connecting member, wherein the first transmission arm is connected to the loading end of the loading member and can transmit the loading force of the loading member to the first connecting member. When testing the working load of the mounting hole, the first connecting assembly is connected to the loading end of the loading member, and the fixed end is in a first position with an angle of α degrees to the loading force direction of the loading member.

[0015] In order to simulate the force direction of the mounting hole in actual use, preferably, the first connecting member is rotatably connected to the first transmission arm. The rotatable connection method can keep the force direction of the loading member unchanged during the test, avoiding the change of the force direction during the test and generating a torsional force on the mounting hole, thereby affecting the test results.

[0016] In order to rotatably connect the first connecting member to the first transmission arm, preferably, the first connecting member includes a ball head and a protrusion that partially protrudes from the ball head and can be inserted into the mounting hole and connected to the mounting hole. The first end of the first transmission arm is connected to the loading end of the loading member, and the second end is provided with a receiving part for receiving the ball head. With the cooperation of the ball head and the receiving part, the first connecting member can rotate relative to the first transmission arm. The cooperation of the ball head and the receiving part can simulate the force applied by the stabilizer bar to the mounting hole when the accessory to be tested is actually used, so that the detection result is more in line with the actual use scenario.

[0017] In order to test the working load of the arm, the arm includes a first arm and a second arm spaced apart from the first arm, and the second connecting assembly includes a second connecting member capable of simultaneously connecting the first arm and the second arm, and a second transmission assembly connected to the loading end of the loading member and capable of transmitting the loading force of the loading member to the second connecting member. When testing the working load of the arm, the second connecting assembly is connected to the loading end of the loading member, and the fixed end is in a second position parallel to the loading force direction of the loading member.

[0018] In order to realize that the second connecting member can connect the first arm and the second arm at the same time, preferably, the second connecting member includes a first wall and a second wall arranged in parallel, and a third wall and a fourth wall connecting the first wall and the second wall, the first wall part is convex to form a first convex block, the second wall part is convex to form a second convex block, wherein the first arm has a first connecting hole, the second arm has a second connecting hole, the first convex block can be inserted into the first connecting hole to connect with the first arm, and the second convex block can be inserted into the second connecting hole to connect with the second arm. In this way, by connecting the first arm and the second arm with the help of a connecting block, force can be applied to the two arms at the same time, and when the first arm or the second arm yields, the result obtained is the maximum load of the accessory to be tested.

[0019] In order to transfer the tension or pressure of the loading member to the second connecting member, preferably, the second transmission assembly includes a second transmission arm, a third transmission arm spaced apart from the second transmission arm, and a fourth transmission arm connecting the tail of the second transmission arm and the tail of the third transmission arm, wherein the fourth transmission arm is connected to the loading end of the loading member, and the head of the second transmission arm and the head of the third transmission arm are both connected to the second connecting member. The transmission method using two transmission arms can make the two arms evenly stressed and make the test results more accurate. In addition, the tension or pressure of the loading member can also be transferred to the second connecting member by connecting one transmission arm to the second connecting member.

[0020] In order to further ensure that the two arms are evenly stressed, preferably, the third wall portion is raised to form a third bulge, the fourth wall portion is raised to form a fourth bulge, the head of the second transmission arm is provided with a second socket, the third bulge can be inserted into the second socket to connect the second transmission arm and the second connecting member, the head of the third transmission arm is provided with a third socket, the fourth bulge can be inserted into the third socket to connect the third transmission arm and the second connecting member. The second transmission arm and the third transmission arm are respectively connected to the center of the upper and lower sides of the second connecting member, which can ensure that the force point of the second connecting member is at its center of gravity, further ensuring the accuracy of the test results.

[0021] Compared with the prior art, the advantages of the present invention are that the connecting component of the test tooling includes a first connecting component for connecting the mounting hole and a second connecting component for connecting the arm, and one of the first connecting component and the second connecting component can be selected according to the detection part of the accessory to be tested and connected to the power output end of the loading component, and at the same time, the fixed end can be converted between a first position at an angle of α to the loading force direction of the loading component and a second position parallel to the loading force direction of the loading component according to the detection part of the accessory to be tested, so that accessories to be tested with different detection parts and loading directions required by different detection parts forming an angle α can be tested on one detection tooling, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a shock-absorbing fork in the background technology of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of a shock absorbing fork in an embodiment of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a first connecting assembly connected to a loading member in an embodiment of the present invention;

[0025] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0026] Figure 5 An exploded view of a first connecting component in an embodiment of the present invention;

[0027] Figure 6 A top view of the first connecting component and the fixing end in an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Sectional view at CC;

[0029] Figure 8 It is a structural schematic diagram of a second connecting assembly connected to a loading member in an embodiment of the present invention;

[0030] Fig. 9 An exploded view of the second connecting component and the fixed end in an embodiment of the present invention;

[0031] Fig.10 is a schematic structural diagram of a second connection component in an embodiment of the present invention;

[0032] Fig.11 is an exploded view of the second connecting component in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the accompanying drawings.

[0034] like Figure 2-11 As shown in FIG. 1 , it is a preferred embodiment of the present invention. The test fixture for testing automobile parts in this embodiment comprises a test platform 1 and a loading member 3 arranged on the test platform 1, a connecting member 2 for connecting the tested part A to the loading end of the loading member 3, and a fixing end 6. In this embodiment, the tested part A is a shock absorbing fork, such as Figure 2 As shown, the shock-absorbing fork includes a connecting portion A3 for connecting to a shock absorber, a mounting hole A1 provided on the outer wall of the connecting portion A3 for mounting a stabilizer bar, and an arm portion A2 coaxially arranged with the connecting portion A3, wherein the arm portion A2 includes a first arm portion A21 and a second arm portion A22 spaced apart from the first arm portion A21.

[0035] The connecting member 2 includes a first connecting component 4 for connecting the mounting hole A1 and a second connecting component 5 for connecting the arm A2, and the first connecting component 4 and the second connecting component 5 are selectively configured to be connected to the power output end of the loading member 3. The fixed end 6 is provided on the connecting frame of the test platform 1, and is used to connect the connecting portion A3 of the accessory A to be tested, so that the mounting hole A1 and the arm A2 of the accessory A to be tested can be exposed, and the connecting frame can change the angle relative to the test platform 1, and is used to adjust the specified position of the fixed end 6 between the first position and the second position, wherein the first position is the test position of the mounting hole A1, that is, the axis direction D1 of the fixed end 6 is adjusted to a specified position with an angle of α compared to the loading force direction D2 of the loading member 3; the second position is the test position of the arm A2, that is, the axis direction D1 of the fixed end 6 is adjusted to a specified position parallel to the loading force direction D2 of the loading member 3.

[0036] like Figure 3-4As shown, when the detection part is the mounting hole A1, the first connection component 4 is configured to be connected to the loading end of the loading member 3. At this time, the adjustment fixing end 6 is adjusted to the first position mentioned above. The first connection component 4 in this embodiment includes a first connection member 41 for connecting the mounting hole A1 and a first transmission arm 42 connected to the first connection member 41. The first transmission arm 42 is connected to the loading end of the loading member 3 and can transmit the loading force of the loading member 3 to the first connection member 41. The first connection member 41 is rotatably connected to the first transmission arm 42. Specifically, as shown in FIG. Figure 5-7 As shown, the first connecting member 41 includes a ball head 41a and a protrusion 41b that partially protrudes from the ball head 41a and can be inserted into the mounting hole A1. The first end of the first transmission arm 42 is connected to the loading end of the loading member 3, and the second end is provided with a receiving portion 42a for receiving the ball head 41a. With the cooperation of the ball head 41a and the receiving portion 42a, the first connecting member 41 can rotate relative to the first transmission arm 42. The cooperation of the ball head 41a and the receiving portion 42a can simulate the force applied by the stabilizer bar to the mounting hole A1 when the accessory A to be tested is actually used, so that the test result is more in line with the actual use scenario. At the same time, the ball head 41a and the receiving portion 42a can rotate relative to each other, so that the force direction of the loading member 3 can be kept unchanged during the test, so as to avoid the change of the force direction during the test process and the torsional force on the mounting hole A1, which affects the test result.

[0037] like Figure 8 As shown, when the detection part is the arm A2, the second connection component 5 is configured to be connected to the loading end of the loading member 3, and at this time, the adjustment fixing end 6 is adjusted to the second position mentioned above. Since the accessory A to be tested includes a first arm A21 and a second arm A22 spaced apart from the first arm A21, in order to simultaneously test the working loads of the first arm A21 and the second arm A22, the second connection component 5 needs to simultaneously connect the first arm A21 and the second arm A22, as shown in FIG. Figure 9-11As shown, the second connection component 5 of this embodiment includes a second connection member 51 capable of connecting the first arm A21 and the second arm A22 at the same time, and a second transmission component 52 connected to the loading end of the loading member 3 and capable of transmitting the loading force of the loading member 3 to the second connection member 51. Specifically, the second connection member 51 includes a first wall 51a and a second wall 51b arranged in parallel, and a third wall 51c and a fourth wall (51d) connecting the first wall 51a and the second wall 51b, wherein the first wall 51a is partially raised to form a first convex block 511, and the second wall 51b is partially raised to form a second convex block 512, and the first arm A21 has a first connection hole A211, and the second arm A22 has a second connection hole A221, the first convex block 511 can be inserted into the first connection hole A211, and the second convex block 512 can be inserted into the second connection hole A221, so as to realize the simultaneous connection of the first arm A21 and the second arm A22. The second transmission assembly 52 includes a second transmission arm 521, a third transmission arm 522 spaced apart from the second transmission arm 521, and a fourth transmission arm 523 connecting the tail of the second transmission arm 521 and the tail of the third transmission arm 522. The fourth transmission arm 523 is connected to the loading end of the loading member 3, and the central part of the third wall 51c protrudes to form a third protrusion 513. The head of the second transmission arm 521 is provided with a second socket 524, and the third protrusion 513 can be inserted into the second socket 524 to connect the head of the second transmission arm 521 with the second connecting member 51. The central part of the fourth wall 51d protrudes to form a fourth protrusion 514. The head of the third transmission arm 522 is provided with a third socket 525, and the fourth protrusion 514 can be inserted into the third socket 525 to connect the head of the third transmission arm 522 with the second connecting member 51. The use of two transmission arms can make the first arm A21 and the second arm A22 bear force evenly, making the test results more accurate. The second transmission arm 521 and the third transmission arm 522 are respectively connected to the center of the upper and lower sides of the second connecting member 51, which can ensure that the force point of the second connecting member 51 is at its center of gravity, further ensuring the accuracy of the test results.

[0038] The test tooling of this embodiment can select the first connecting component 4 or the second connecting component 5 to be connected to the power output end of the loading member 3 according to the detection position of the shock absorber fork, and when the first connecting component 4 is connected to the loading end of the loading member 3, the fixed end 6 can be correspondingly adjusted to be in a first position with an angle of α to the loading force direction of the loading member or a second position parallel to the loading force direction of the loading member. When the first connecting component 4 is connected to the loading end of the loading member 3 and the fixed end 6 is in the first position, the mounting hole A1 of the shock absorber fork can be tested; and when the second connecting component 51 is connected to the loading end of the loading member 3 and the fixed end 6 is in the second position, the arm A2 of the shock absorber fork can be tested, so that a tooling can form an angle α with the loading direction required for different detection positions of the same accessory A to be tested.

Claims

1. A test fixture for testing automobile parts, comprising: Test platform (1); A loading component (3) is arranged on the test platform (1); A connecting member (2) for connecting the accessory to be tested (A) to the loading end of the loading member (3); in, The detection part of the accessory (A) to be tested comprises a mounting hole (A1) and an arm (A2), the arm (A2) is in the same straight line relative to the loading force direction D2 of the loading member (3), and the mounting hole (A1) forms an angle α relative to the loading force direction D2 of the loading member (3); the characteristics are: A fixed end (6) is arranged on a connecting frame of the test platform (1) and is used to connect to a connecting portion (A3) of the accessory to be tested (A), so that the mounting hole (A1) and the arm portion (A2) of the accessory to be tested (A) can be exposed; The connecting member (2) comprises a first connecting component (4) for connecting the mounting hole (A1) and a second connecting component (5) for connecting the arm portion (A21; A22), wherein the first connecting component (4) and the second connecting component (5) are selectively configured to be connected to the loading end of the loading member (3); The connecting frame can change its angle relative to the test platform (1) to adjust the specified position of the fixed end (6) between a first position and a second position, wherein the first position is a test position of the mounting hole (A1), that is, the axial direction D1 of the fixed end (6) is adjusted to a specified position with a deflection angle of α degrees relative to the loading force direction D2 of the loading member (3); The second position is the test position of the arm (A2), that is, the axial direction D1 of the fixed end (6) is adjusted to a specified position parallel to the loading force direction D2 of the loading member (3).

2. The test tool according to claim 1, characterized in that: The first connecting component (4) comprises a first connecting member (41) for connecting to the mounting hole (A1) and a first transmission arm (42) connected to the first connecting member (41); the first transmission arm (42) is connected to the loading end of the loading member (3) and can transmit the loading force of the loading member (3) to the first connecting member (41).

3. The test tool according to claim 2, characterized in that: The first connecting member (41) is rotatably connected to the first transmission arm (42).

4. The test tool according to claim 3, characterized in that: The first connecting member (41) comprises a ball head (41a) and a protruding portion (41b) which partially protrudes from the ball head (41a) and can be inserted into the mounting hole (A1) and connected to the mounting hole (A1); the first end of the first transmission arm (42) is connected to the loading end of the loading member (3); the second end is provided with a receiving portion (42a) for receiving the ball head (41a); by means of the cooperation between the ball head (41a) and the receiving portion (42a), the first connecting member (41) can rotate relative to the first transmission arm (42).

5. The test tool according to claim 1, characterized in that: The arm portion (A2) includes a first arm portion (A21) and a second arm portion (A22) spaced apart from the first arm portion (A21); the second connecting component (5) includes a second connecting member (51) capable of simultaneously connecting the first arm portion (A21) and the second arm portion (A22); and a second transmission component (52) connected to the loading member (3) and capable of transmitting the loading force of the loading member (3) to the second connecting member (51).

6. The test tool according to claim 5, characterized in that: The second connecting member (51) includes a first wall surface (51a) and a second wall surface (51b) arranged in parallel, and a third wall surface (51c) and a fourth wall surface (51d) connecting the first wall surface (51a) and the second wall surface (51b), wherein the first wall surface (51a) is partially raised to form a first convex block (511), and the second wall surface (51b) is partially raised to form a second convex block (512), wherein the first arm portion (A21) has a first connecting hole (A211), and the second arm portion (A22) has a second connecting hole (A221), the first convex block (511) can be inserted into the first connecting hole (A211) to be connected to the first arm portion (A21), and the second convex block (512) can be inserted into the second connecting hole (A221) to be connected to the second arm portion (A22).

7. The test tool according to claim 6, characterized in that: The second transmission assembly (52) comprises a second transmission arm (521), a third transmission arm (522) spaced apart from the second transmission arm (521), and a fourth transmission arm (523) connecting the tail of the second transmission arm (521) and the tail of the third transmission arm (522), the fourth transmission arm (523) being connected to the loading end of the loading member (3), and the head of the second transmission arm (521) and the head of the third transmission arm (522) being both connected to the second connecting member (51).

8. The test tool according to claim 7, characterized in that: The third wall surface (51c) is partially raised to form a third protrusion (513), the fourth wall surface (51d) is partially raised to form a fourth protrusion (514), the head of the second transmission arm (521) is provided with a second plug hole (524), the third protrusion (513) can be inserted into the second plug hole (524) to connect the second transmission arm (521) and the second connecting member (51), the head of the third transmission arm (522) is provided with a third plug hole (525), the fourth protrusion (514) can be inserted into the third plug hole (525) to connect the third transmission arm (522) and the second connecting member (51).

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