Detection tool for detecting front axle assembly

Abstract

The utility model discloses a detection tool for detecting a front axle assembly, which comprises a first detection group positioned on the right side of a central reference block, a second detection group positioned on the right side of the central reference block and above the first detection group, a third detection group positioned right above the central reference block, and a fourth detection group positioned right above the central reference block. The detection device comprises a central reference block, a fourth detection group, a fifth detection group, a sixth detection group, a seventh detection group, a fifth detection group, a sixth detection group, a seventh detection group, a fifth detection group, a sixth detection group, a seventh detection group and a seventh detection group, the comprehensive testing fixture for the front axle assembly has the advantages of being simple in arrangement, convenient to replace, strong in modularization, high in strength and high in precision, and can rapidly, conveniently and accurately detect numerous important interface parameters of the front axle assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile testing fixture, concretely relates to a testing fixture for checking front axle assembly. BACKGROUND

[0002] The front axle assembly is one of the important assembly parts of the automobile chassis, such as Figure 4 As shown in a front axle assembly structure schematic view. Including: wheel hub bearing unit, knuckle, brake disc, metal dust cover. Wheel hub bearing unit main function is to bear the vehicle load and provide accurate guidance for the rotation of the wheel, provide vehicle speed signal, it bears axial load and radial load. The main function of the knuckle is to transmit axial load and radial load, transmit the steering force of the steering outer pull rod, drive the front wheel to rotate around the main pin, thereby making the automobile turn. The main function of the brake disc is the friction pair of the disc brake, which provides braking force. In addition to having appropriate strength and stiffness, it also has high and stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity, etc. The main function of the metal dust cover is to block dust and water. In short, the front axle assembly bears three most important system functions including braking (longitudinal control), steering (lateral control), suspension (vertical control), which requires high-precision dimensions and geometric tolerance. As shown in Figure 4 Important interface parameters set on the front axle assembly include: wheel hub bearing unit bolt, wheel hub bearing brake disc guide end, shock absorber mounting hole, brake caliper mounting hole, main pin ball head mounting hole, steering outer pull rod ball head mounting hole, vehicle speed sensor detection hole, vehicle speed sensor positioning hole, brake disc wheel hub guide end, brake disc wheel hub mounting surface. As can be seen, many items need to be guaranteed. Therefore, a front axle assembly testing fixture is needed to quickly, conveniently and accurately detect many important interface parameters. SUMMARY

[0003] The application adopts the following technical scheme: a testing fixture for checking front axle assembly, comprising: a base; a central reference block fixed in the center of the base, provided with two stepped planes. One stepped plane is used to support the front axle assembly and provide a detection reference, and the other stepped plane is used to detect the size of the wheel hub bearing brake disc guide end;

[0004] Preferably, the first detection group is located on the right side of the central reference block and comprises a first detection seat and a first detection rod. The first detection seat is higher than the end face of the brake caliper mounting hole, has an "L" curved shape, and is provided with a detection hole for cooperating with the first detection rod to detect the brake caliper mounting hole. The first detection rod is inserted into the detection hole of the first detection seat and the brake caliper mounting hole, and is used to detect the size and position of the brake caliper mounting hole. The first detection rod is also provided with a GO-NO GO detection step for detecting the size of the end face of the brake caliper mounting hole.

[0005] Preferably, the second detection group is located on the right side of the central reference block, above the first detection group, and includes a second detection seat and a second detection rod. The second detection seat is higher than the end face of the brake caliper mounting hole and has an "L" shape, and detection holes are arranged on the second detection seat to cooperate with the second detection rod to detect the brake caliper mounting hole. The second detection rod is inserted into the detection hole of the second detection seat and the brake caliper mounting hole to detect the size and position of the brake caliper mounting hole. GO-NO GO detection steps are arranged on the second detection rod to detect the size of the end face of the brake caliper mounting hole.

[0006] Preferably, the third detection group is located directly above the central reference block and includes a third detection seat, a third detection rod, and a fourth detection rod. The third detection seat is located on the left side of the end face of the shock absorber mounting hole and has an "L" shape, and detection holes are arranged on the third detection seat to cooperate with the third detection rod and the fourth detection rod to detect the shock absorber mounting hole. The third detection rod is inserted into the detection hole of the third detection seat and the shock absorber mounting hole to detect the size and position of the shock absorber mounting hole. GO-NO GO detection steps are arranged on the third detection rod to detect the size of the end face of the shock absorber mounting hole. The fourth detection rod is inserted into the detection hole of the third detection seat and the shock absorber mounting hole to detect the size and position of the shock absorber mounting hole. GO-NO GO detection steps are arranged on the fourth detection rod to detect the size of the end face of the shock absorber mounting hole.

[0007] Preferably, the fourth detection group is located on the left side of the central reference block and includes a fourth detection seat, a fifth detection rod, and a sixth detection rod. The fourth detection seat is directly opposite the vehicle speed sensor mounting hole and the vehicle speed sensor positioning hole, and detection holes are arranged on the fourth detection seat to cooperate with the fifth detection rod to detect the vehicle speed sensor mounting hole. Detection holes are arranged on the fourth detection seat to cooperate with the sixth detection rod to detect the vehicle speed sensor positioning hole. The fifth detection rod is inserted into the fourth detection seat and the vehicle speed sensor mounting hole to detect the size and position of the vehicle speed sensor mounting hole. GO-NO GO detection steps are arranged on the fifth detection rod to detect the vehicle speed sensor mounting hole. The sixth detection rod has a detection thread at the head and is inserted into the fourth detection seat and the vehicle speed sensor positioning hole to detect the size and position of the vehicle speed sensor positioning hole. GO-NO GO detection steps are arranged on the sixth detection rod to detect the size of the end face of the vehicle speed sensor positioning hole.

[0008] Preferably, the fifth detection group is located on the lower left side of the central reference block, below the fourth detection group, and includes a fifth detection seat and a seventh detection rod. The fifth detection seat is directly opposite the steering outer pull rod ball head mounting hole, and detection holes are arranged on the fifth detection seat to cooperate with the seventh detection rod to detect the steering outer pull rod ball head mounting hole. The seventh detection rod has a combination of a cone and a cylinder at the head and is inserted into the fifth detection seat and the steering outer pull rod ball head mounting hole to detect the size and position of the steering outer pull rod ball head mounting hole. GO-NO GO detection steps are arranged on the seventh detection rod to detect the size of the end face of the steering outer pull rod ball head mounting hole.

[0009] Preferably, a sixth detection group is arranged below the central reference block, and comprises a sixth detection seat and an eighth detection rod.

[0010] Preferably, a seventh detection group is arranged at the center of the central reference block, and is provided with five round holes and one large hole.

[0011] Compared with the prior art, the front axle assembly comprehensive gauge has the advantages that the front axle assembly comprehensive gauge is simple in arrangement, convenient to replace, high in modularity, high in strength and high in precision, and can quickly, conveniently and accurately detect a plurality of important interface parameters of the front axle assembly. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a gauge structure schematic view of the front axle assembly;

[0013] Figure 2 is a top view of the front axle assembly gauge;

[0014] Figure 3 is a front view of the front axle assembly gauge;

[0015] Figure 4 is a front axle assembly structure view to which the front axle assembly gauge is directed.

[0016] List of figure mark: base 1, wheel hub bearing unit 120, wheel hub bearing unit bolt 121, first brake disc wheel hub guide end 122, knuckle 130, first shock absorber mounting hole 131, second shock absorber mounting hole 132, first brake caliper mounting hole 133, second brake caliper mounting hole 134, kingpin ball head mounting hole 135, steering outer tie rod ball head mounting hole 136, vehicle speed sensor mounting hole 137, brake disc 140, second brake disc wheel hub guide end 141, brake disc wheel hub mounting surface 142, metal dust cover 150, central reference block 2, first detection group 3, first detection seat 31, first detection rod 32, second detection group 4, second detection seat 41, second detection rod 42, third detection group 5, third detection seat 51, third detection rod 52, fourth detection rod 53, fourth detection group 6, fourth detection seat 61, fifth detection rod 62, sixth detection rod 63, fifth detection group 7, fifth detection seat 71, seventh detection rod 72, sixth detection group 8, sixth detection seat 81, eighth detection rod 82, seventh detection group 91. DETAILED DESCRIPTION

[0017] The present application will be further clarified by the following examples and figures, it should be understood that the following examples are only used to explain the present application and not used to limit the scope of the present application.

[0018] Embodiment: the technical scheme of the utility model provides a kind of gauge for checking front axle assembly, see Figure 1 It includes base 1, central reference block 2, first detection group 3, second detection group 4, third detection group 5, fourth detection group 6, fifth detection group 7, sixth detection group 8 and seventh detection group 91.

[0019] Further, the central reference block 2 is fixed in the center of the base, used to support the brake disc wheel hub mounting surface 142 of the front axle assembly, provide detection reference, and detect the size of the second brake disc wheel hub guide end 141;

[0020] Further, the first detection group 3 is located on the right side of the central reference block 2, including the first detection seat 31 and the first detection rod 32;The first detection seat 31 is higher than the end surface of the brake caliper mounting hole 134, and is 90° curved, and a detection hole is arranged thereon, used to cooperate with the first detection rod 32 to detect the brake caliper mounting hole 134;The first detection rod 32 is provided with a GO-NO GO step, which is inserted into the first detection seat 31 and the brake caliper mounting hole 134, used for the size and position of the brake caliper mounting hole 134;The GO-NO GO step can be used to judge the size of the end surface of the brake caliper mounting hole 134.

[0021] Further, the second detection group 4, located on the right side of the central reference block 2, above the first detection group 3, includes a second detection seat 41 and a second detection rod 42. The second detection seat 41 is higher than the end face of the first brake caliper mounting hole 133, and is 90° curved, and a detection hole is arranged thereon for cooperating with the second detection rod 42 to detect the first brake caliper mounting hole 133; the second detection rod 42 is provided with a GO-NO GO step, and is inserted into the second detection seat 41 and the first brake caliper mounting hole 133, and is used for detecting the size and position of the first brake caliper mounting hole 133. The GO-NO GO step can be observed to judge the size of the end face of the first brake caliper mounting hole 133.

[0022] Further, the third detection group 5, located directly above the central reference block 2, includes a third detection seat 51, a third detection rod 52 and a fourth detection rod 53. The third detection seat 51 is located on the left side of the end face of the first shock absorber mounting hole 131 and the second shock absorber mounting hole 132, and is 90° curved, and a detection hole is arranged thereon for cooperating with the third detection rod 52 and the fourth detection rod 53 to detect the first shock absorber mounting hole 131 and the second shock absorber mounting hole 132; the third detection rod 52 is provided with a GO-NO GO step, and is inserted into the third detection seat detection hole and the first shock absorber mounting hole 131, and is used for detecting the size and position of the first shock absorber mounting hole 131. The GO-NO GO step can be observed to judge the size of the end face of the first shock absorber mounting hole 131. The fourth detection rod 53 is provided with a GO-NO GO step, and is inserted into the third detection seat 51 detection hole and the second shock absorber mounting hole 132, and is used for detecting the position of the second shock absorber mounting hole 132. The GO-NO GO step can be observed to judge the size of the end face of the shock absorber mounting hole 132.

[0023] Further, the fourth detection group 6, located on the left side of the central reference block 2, includes a fourth detection seat 61, a fifth detection rod 62 and a sixth detection rod 63. The fourth detection seat 61 is opposite to the vehicle speed sensor mounting hole 137 and the vehicle speed sensor positioning hole 138, and a detection hole is arranged thereon for cooperating with the fifth detection rod 62 to detect the vehicle speed sensor mounting hole 137, and a detection hole is arranged thereon for cooperating with the sixth detection rod 63 to detect the vehicle speed sensor positioning hole 138; the fifth detection rod 62 is provided with a GO-NO GO step, and is inserted into the fourth detection seat 61 and the vehicle speed sensor mounting hole 137, and is used for detecting the size and position of the vehicle speed sensor mounting hole 137. The GO-NO GO step can be observed to judge the size of the end face of the vehicle speed sensor mounting hole 137. The sixth detection rod 63 is provided with a GO-NO GO step, and is inserted into the fourth detection seat 61 and the vehicle speed sensor mounting hole 138, and is used for detecting the size and position of the vehicle speed sensor positioning hole 138. The GO-NO GO step can be observed to judge the size of the end face of the vehicle speed sensor mounting hole 138.

[0024] Further, the fifth detection group 7, located at the lower left side of the central reference block 2, below the fourth detection group 6, includes a fifth detection seat 71 and a seventh detection rod 72. The fifth detection seat 71, opposite the steering outer pull rod ball head mounting hole 136, is provided with a detection hole for cooperating with the seventh detection rod 72 to detect the steering outer pull rod ball head mounting hole 136; the seventh detection rod 72 is provided with a GO-NOGO step, and the head has a combination of a cone and a cylinder, which is inserted into the detection hole of the fifth detection seat 71 and the steering outer pull rod ball head mounting hole 136 for detecting the size and position of the steering outer pull rod ball head mounting hole 136. The GO-NOGO step can be used to judge the size of the end face of the steering outer pull rod ball head mounting hole 136.

[0025] Further, the sixth detection group 8, located directly below the central reference block 2, includes a sixth detection seat 81 and an eighth detection rod 82. The sixth detection seat 81 has a 90° and 108° double curved shape, and is provided with a detection hole for cooperating with the eighth detection rod 82 to detect the kingpin ball head mounting hole 135; the eighth detection rod 82 is provided with a GO-NOGO step, and the head has a combination of a cone and a cylinder, which is inserted into the detection hole of the sixth detection seat 81 and the kingpin ball head mounting hole 135 for detecting the size and position of the kingpin ball head mounting hole 135. The GO-NOGO step can be used to judge the size of the end face of the kingpin ball head mounting hole 135.

[0026] Further, the seventh detection group 91, located at the center of the central reference block 2, is provided with five round holes and one large hole. The five round holes are used to detect the position of the hub bearing unit bolt 121, and the large hole is used to detect the size of the first brake disc hub guide end 122.

[0027] Further, the first detection seat 31, the second detection seat 41, the third detection seat 51, the fourth detection seat 61, the fifth detection seat 71, and the sixth detection seat 81 are coupled to the base 1 by hidden bolts.

[0028] It should be noted that the above content only illustrates the technical idea of the present application, and cannot limit the protection scope of the present application. For ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and refinements can be made, which fall within the protection scope of the claims of the present application.

Claims

1. A gauge for inspecting a front axle assembly, the gauge comprising: The first detection group is located on the right side of the central reference block, the second detection group is located on the right side of the central reference block and above the first detection group, the third detection group is located directly above the central reference block, the fourth detection group is located on the left side of the central reference block, the fifth detection group is located on the lower left side of the central reference block and below the fourth detection group, the sixth detection group is located directly below the central reference block, and the seventh detection group is located at the center of the central reference block.

2. The checking fixture of the front axle assembly of claim 1, wherein, The first detection group comprises a first detection seat and a first detection rod, the first detection seat is higher than the end face of the brake caliper mounting hole, the first detection seat is an L-shaped structure, and a detection hole is arranged on the first detection seat and matched with the first detection rod to detect the brake caliper mounting hole; the first detection rod is inserted into the detection hole of the first detection seat and the brake caliper mounting hole to detect the size and position of the brake caliper mounting hole, and a detection step is further arranged on the first detection rod to detect the size of the end face of the brake caliper mounting hole.

3. The gage of claim 1 wherein, The second detection group comprises a second detection seat and a second detection rod, the second detection seat is higher than the end face of the brake caliper mounting hole, the second detection seat is an L-shaped structure, and a detection hole is arranged on the second detection seat and matched with the second detection rod to detect the brake caliper mounting hole; the second detection rod is inserted into the detection hole of the second detection seat and the brake caliper mounting hole to detect the size and position of the brake caliper mounting hole, and a detection step is further arranged on the second detection rod to detect the size of the end face of the brake caliper mounting hole.

4. The gage of claim 1, wherein, The third detection group comprises a third detection seat, a third detection rod and a fourth detection rod, the third detection seat is located on the left side of the end face of the shock absorber mounting hole and is an L-shaped structure, a detection hole is arranged on the third detection seat and matched with the third detection rod and the fourth detection rod to detect the shock absorber mounting hole; the third detection rod is inserted into the detection hole of the third detection seat and the shock absorber mounting hole to detect the size and position of the shock absorber mounting hole, and a detection step is further arranged on the third detection rod to detect the size of the end face of the shock absorber mounting hole; the fourth detection rod is inserted into the detection hole of the third detection seat and the shock absorber mounting hole to detect the size and position of the shock absorber mounting hole, and a detection step is further arranged on the fourth detection rod to detect the size of the end face of the shock absorber mounting hole.

5. The gage of claim 1 wherein, The fourth detection group comprises a fourth detection seat, a fifth detection rod and a sixth detection rod. The fourth detection seat is opposite to the vehicle speed sensor mounting hole and the vehicle speed sensor positioning hole, and is provided with a detection hole for cooperating with the fifth detection rod to detect the vehicle speed sensor mounting hole, and is provided with a detection hole for cooperating with the sixth detection rod to detect the vehicle speed sensor positioning hole. The fifth detection rod is inserted into the fourth detection seat and the vehicle speed sensor mounting hole to detect the size and position of the vehicle speed sensor mounting hole, and is provided with a detection step for detecting the vehicle speed sensor mounting hole. The sixth detection rod is provided with a detection thread at the head portion, is inserted into the fourth detection seat and the vehicle speed sensor positioning hole to detect the size and position of the vehicle speed sensor positioning hole, and is provided with a detection step for detecting the end face size of the vehicle speed sensor positioning hole.

6. The gage of claim 1, wherein, The fifth detection group comprises a fifth detection seat and a seventh detection rod. The fifth detection seat is opposite to the steering outer pull rod ball head mounting hole, and is provided with a detection hole for cooperating with the seventh detection rod to detect the steering outer pull rod ball head mounting hole. The seventh detection rod is provided with a conical and cylindrical combination at the head portion, is inserted into the fifth detection seat and the steering outer pull rod ball head mounting hole to detect the size and position of the steering outer pull rod ball head mounting hole, and is provided with a detection step for detecting the end face size of the steering outer pull rod ball head mounting hole.

7. The gage of claim 1 wherein, The sixth detection group comprises a sixth detection seat and an eighth detection rod. The sixth detection seat is higher than the kingpin ball head mounting hole, and is provided with a double-L-shaped structure and a detection hole for cooperating with the eighth detection rod to detect the kingpin ball head mounting hole. The eighth detection rod is provided with a step and a conical and cylindrical combination at the head portion to detect the size, position and end face size of the kingpin ball head mounting hole.

8. The gage of claim 1, wherein, The seventh detection group is provided with a plurality of round holes and a large hole to detect the position of the hub bearing unit bolt and the size of the brake disc hub guide end.

Images