Axle assembly running-in test bench

Abstract

The present invention relates to a bridge assembly running-in test bench, comprising: a base; two centering mechanisms, each centering mechanism comprising a centering piece, the two centering pieces are spaced apart from each other along a first direction; each centering piece is provided with a V-shaped groove for placing a bridge assembly to be tested on a side away from the base along a second direction, the V-shaped groove penetrates the centering piece along the first direction, each V-shaped groove has a symmetry surface parallel to the first direction, and the symmetry surfaces of the two V-shaped grooves overlap; the centering piece is configured to be able to move relative to the base along the second direction to lift the bridge assembly to be tested, so that the bridge assembly to be tested is automatically centered. The above-mentioned bridge assembly running-in test bench lifts the bridge assembly to be tested by the centering piece, so that the bridge assembly to be tested is automatically centered, and then the subsequent bridge assembly to be tested and the load motor and main shaft of the vehicle can be automatically docked, thereby effectively improving the detection efficiency of the running-in test and reducing the work intensity of the detection personnel.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle automated testing, in particular to a bridge assembly running-in test bench. Background Art

[0002] As customers' requirements for the overall quality of vehicles continue to increase, the requirements for the vehicle's axle assembly are also getting higher and higher. For this reason, before the vehicle leaves the factory, each automobile factory will conduct a 100% running-in test on the axle assembly before the vehicle leaves the factory, so as to extend the quality status of the axle assembly and avoid unqualified products from entering the market and affecting the customer experience.

[0003] However, there are many types of axle assemblies with large structural differences. When doing the running-in test, the fixture of the test bench is manually adjusted according to the structure of the different axle assemblies to clamp the axle assembly. However, the manual adjustment of the fixture cannot ensure that the axis of the axle assembly and the load motor are coaxially set. When the load motor and the main shaft are docked with the axle assembly hub, they can only be docked manually, which leads to low detection efficiency of the running-in test and high workload for the inspectors. Summary of the invention

[0004] Based on this, it is necessary to provide a bridge assembly running-in test bench that can automatically center the bridge assembly to ensure that the axis of the bridge assembly and the load motor are coaxially set, in order to address the problem that the manual adjustment fixture cannot ensure that the axis of the bridge assembly and the load motor are coaxially set, resulting in low detection efficiency of the running-in test and high workload of the inspectors. The load motor and the main shaft can be automatically docked with the bridge assembly hub, thereby improving the detection efficiency of the running-in test and reducing the workload of the inspectors.

[0005] According to one aspect of the present application, the present application provides a bridge assembly running-in test bench, comprising:

[0006] A base extending longitudinally along a first direction;

[0007] Two centering mechanisms are provided on one side of the base along the second direction, each of the centering mechanisms comprises a centering piece, and the two centering pieces are spaced apart from each other and arranged opposite to each other along the first direction; a V-shaped groove for placing the bridge assembly to be tested is provided on the side of each centering piece along the second direction away from the base, the V-shaped groove passes through the centering piece along the first direction, each of the V-shaped grooves has a symmetry plane parallel to the first direction, and the symmetry planes of the two V-shaped grooves overlap;

[0008] The centering member is configured to be movable relative to the base along the second direction to lift the bridge assembly to be tested, thereby automatically centering the bridge assembly to be tested;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] In one of the embodiments, the axle assembly running-in test bench further includes a conveying mechanism;

[0011] One end of the conveying mechanism is arranged on one side of the base along the second direction, and one end of the conveying mechanism is arranged on the base and is located between the two centering mechanisms. The conveying mechanism is used to convey the bridge assembly to be tested.

[0012] In one embodiment, the conveying mechanism has a loading station, a unloading station and a testing station, and the testing station is formed at one end of the conveying mechanism between the two centering mechanisms;

[0013] The conveying mechanism includes a carrying unit for carrying the bridge assembly to be tested, and the carrying unit is configured to be able to move from the upper machine station along a first path to the test station, or from the test station along a second path to the lower machine station, and at least part of the first path and the second path are set independently of each other.

[0014] In one of the embodiments, the conveying mechanism further includes a first conveying unit and a second conveying unit;

[0015] The first conveying unit extends along the third direction, and one end of the first conveying unit in the third direction is located between the two centering mechanisms and is provided with the test station, and the first conveying unit is used to drive the carrying unit to move relative to the first conveying unit along the third direction;

[0016] The second conveying unit is connected to an end of the first conveying unit away from the test station, and the second conveying unit extends along the first direction, and the second conveying unit is used to drive the carrying unit to move relative to the second conveying unit along the second direction;

[0017] The first path is formed at one end of the first conveying unit and the second conveying unit along the first direction; the second path is formed at the other end of the first conveying unit and the second conveying unit along the first direction.

[0018] In one embodiment, each of the centering mechanisms further comprises:

[0019] A first slide rail is mounted on the base; the centering member is movably mounted on a side of the first slide rail away from the base along the first direction;

[0020] A first driving member, disposed on the base, wherein an output end of the first driving member is connected to the centering member, and is used to drive the centering member to move along the first direction;

[0021] The second driving member is arranged on the base, and the output end of the second driving member is connected to the centering member, so as to drive the centering member to move along the second direction.

[0022] In one of the embodiments, the axle assembly running-in test bench further includes two supporting positioning members;

[0023] The two supporting positioning members are used to be respectively installed at the opposite ends of the bridge assembly to be tested along the first direction, and the two supporting positioning members can be respectively arranged on the two centering members, and the centering members can be moved along the second direction toward the side away from the base to lift the supporting positioning members and the bridge assembly to be tested, so that the bridge assembly to be tested can be automatically centered.

[0024] In one of the embodiments, the axle assembly running-in test bench further includes a clamping mechanism;

[0025] The clamping mechanism is movably mounted on the base along the second direction, and is used to clamp the bridge assembly to be tested.

[0026] In one embodiment, the clamping mechanism comprises:

[0027] A mounting seat, mounted on one side of the base along the second direction and located between the two centering mechanisms;

[0028] A clamping assembly, mounted on the mounting seat, and comprising a second slide rail, a clamping member and a third driving member;

[0029] Wherein, the second slide rail is installed on a side of the mounting seat facing the bridge assembly to be tested;

[0030] The clamping member is movably mounted on the second slide rail along the second direction, and the clamping member is used to clamp the bridge assembly to be tested;

[0031] The third driving member is installed on the clamping member, and the third driving member is used to drive the clamping member to move along the second direction.

[0032] In one of the embodiments, the clamping mechanism further includes a locking member;

[0033] The locking member is mounted on the mounting seat and is used to lock the clamping member.

[0034] In one of the embodiments, the clamping mechanism includes two clamping assemblies;

[0035] The two clamping assemblies are installed on the mounting seat at intervals along the first direction.

[0036] The above-mentioned bridge assembly running-in test bench moves the centering piece along the second direction toward the side away from the base, so that the centering piece can lift the bridge assembly to be tested, so that the bridge assembly to be tested is automatically centered, and then the subsequent bridge assembly to be tested and the load motor and main shaft of the vehicle can be automatically connected, thereby effectively improving the detection efficiency of the running-in test and reducing the workload of the detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall assembly of the axle assembly running-in test bench in one embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the overall assembly of the axle assembly running-in test bench after removing part of the structure in one embodiment of the present invention;

[0039] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of the middle A;

[0040] Figure 4 Schematic diagram of the structure of a clamping mechanism in one embodiment of the present invention.

[0041] Description of Figure Numbers:

[0042] 100. Bridge assembly running-in test bench; 110. Base; 120. Conveying mechanism; 121. First conveying unit; 122. Second conveying unit; 123. Load-bearing unit; 1231. Mounting portion; 1232. Supporting and bearing portion; 124. Loading station; 125. Unloading station; 126. Test station; 130. Centering mechanism; 131. Centering piece; 1311. V-shaped groove; 132. First slide rail; 140. Clamping mechanism; 141. Mounting seat; 142. Clamping assembly; 1421. Second slide rail; 1422. Clamping piece; 1422a. First clamping portion; 1422b. Second clamping portion; 1423. Third driving member; 143. Clamping space; 144. Locking member; 200. Bridge assembly to be tested. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0049] Figure 1 It is a schematic diagram of the overall assembly of the axle assembly running-in test bench in one embodiment of the present invention.

[0050] See also Figure 1 For the convenience of description, in this application, the length direction of the base 110 is taken as the first direction (eg Figure 1 ), with the height direction of the base 110 as the second direction (as shown in the X-axis in FIG. Figure 1 ), with the width direction of the base 110 as the third direction (as shown in the Z axis in FIG. Figure 1 , wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0051] Figure 2 It is a schematic diagram of the overall assembly of the axle assembly running-in test bench after removing part of the structure in one embodiment of the present invention; Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of point A in the middle.

[0052] See also Figures 1 to 3 The present application provides a bridge assembly running-in test bench 100, which is used to perform a running-in test on the bridge assembly of a vehicle before the bridge assembly leaves the factory. Specifically, the bridge assembly running-in test bench 100 provided by the present application includes a base 110 and two centering mechanisms 130, each centering mechanism 130 includes a centering piece 131 movably mounted on the base 110, and by moving the centering piece 131 along the second direction, the centering piece 131 can lift the bridge assembly 200 to be tested, so that the bridge assembly 200 to be tested can be automatically centered, and then the subsequent bridge assembly 200 to be tested and the load motor and main shaft of the vehicle can be automatically docked, thereby effectively improving the detection efficiency of the running-in test and reducing the work intensity of the detection personnel.

[0053] Specifically, see Figure 1 and Figure 2 The base 110 is a rectangular frame structure as a whole, and is disposed on the ground. The base 110 can also be disposed on the test platform. The position of the base 110 can be set as needed, and no further description is given here. The base 110 extends longitudinally along the first direction, and is used to install the centering mechanism 130. For the sake of ease of description, the base 110 is described as being disposed on the ground in this application.

[0054] See also Figure 3 , and combined with Figure 1 and Figure 2 , two centering mechanisms 130 are movably mounted on the base 110, each centering mechanism 130 includes a centering piece 131, the two centering pieces are spaced apart from each other and arranged oppositely along the first direction of 131, and each centering piece 131 is provided with a V-shaped groove 1311 for placing the bridge assembly 200 to be tested on the side away from the base 110 along the second direction, and the V-shaped groove 1311 penetrates the centering piece 131 along the first direction, each V-shaped groove 1311 has a symmetry plane parallel to the first direction, and the symmetry planes of the two V-shaped grooves 1311 coincide. The centering piece 131 is configured to be movable relative to the base 110 along the second direction to lift the bridge assembly 200 to be tested, so that the bridge assembly 200 to be tested is automatically centered. Optionally, the centering piece 131 is a V-shaped block.

[0055] In some embodiments, each centering mechanism 130 further includes a first slide rail 132, a first driving member, and a second driving member (not shown in the figure). The first slide rail 132 is mounted on the base 110, and the centering member 131 is movably mounted on a side of the first slide rail 132 away from the base 110 along a first direction, and the centering member 131 can also be controlled to move along a second direction.

[0056] The first driving member is provided at the base 110, and the output end of the first driving member is connected to the centering member 131, and is used to drive the centering member 131 to move along the first direction. The second driving member is provided at the base 110, and the output end of the second driving member is connected to the centering member 131, and is used to drive the centering member 131 to move along the second direction. When the second driving member drives the centering member 131 to move along the second direction toward the side away from the base 110, the centering member 131 can lift the bridge assembly 200 to be tested, thereby making the bridge assembly 200 to be tested located at the test station 1226 separate from the bearing unit 123. Since the centering member 131 (i.e., the V-shaped block) has the function of automatic centering, when the bridge assembly 200 to be tested is lifted and supported by the centering member 131, the centering member 131 can support the bridge assembly 200 to be tested and make the bridge assembly 200 to be tested complete automatic centering at the same time.

[0057] Optionally, the first driving member is a servo motor and a lead screw, and the lead screw is driven by the servo motor to move so as to drive the centering member 131 to move along the first direction; the second driving member is a driving cylinder.

[0058] In this way, by setting two centering mechanisms 130 spaced apart along the first direction, the bridge assembly 200 to be tested can be lifted synchronously, and after lifting, the bridge assembly 200 to be tested can be supported synchronously and automatically centered, so as to facilitate the subsequent automatic clamping of the bridge assembly 200 to be tested and automatic docking with the load motor and the main shaft, avoiding manual adjustment of the bridge assembly 200 to be tested for clamping and docking, which is beneficial to improving the detection efficiency of the running-in test.

[0059] In some embodiments, the bridge assembly running-in test bench 100 further includes a conveying mechanism 120 disposed on the base 110, and the conveying mechanism 120 and the centering mechanism 130 are located on the same side of the base 110, and are used to automatically convey the bridge assembly 200 to be tested. Specifically, the conveying mechanism 120 is generally in a "T" shape as a whole, and the conveying mechanism 120 has a loading station 124, a unloading station 125 and a test station 126, and the test station 126 is formed at one end of the conveying mechanism 120 located between the two centering mechanisms 130. Among them, the positions of the loading station 124 and the unloading station 125 can be interchanged.

[0060] The conveying mechanism 120 includes a carrying unit 123 for carrying the bridge assembly 200 to be tested. The carrying unit 123 is configured to be able to move from the upper machine station 124 along a first path to the test station 126, or to move from the test station 126 along a second path to the lower machine station 125, and at least part of the first path and the second path are set independently of each other, that is, the first path and the second path partially overlap.

[0061] In some embodiments, the conveying mechanism 120 also includes a first conveying unit 121 and a second conveying unit 122. The first conveying unit 121 extends longitudinally along a third direction. One end of the first conveying unit 121 along the third direction is arranged on a side of the base 110 away from the ground along the second direction and is located between the two centering mechanisms 130. One end of the first conveying unit 121 in the third direction is located between the two centering mechanisms 130 and is provided with a test station 126. The test station 126 is formed on a side of the first conveying unit 121 away from the ground along the second direction and is located at an end of the first conveying unit 121 close to the base 110. The first conveying unit 121 is used to drive the carrying unit 123 to move relative to the first conveying unit 121 along the third direction.

[0062] The second conveying unit 122 is connected to one end of the first conveying unit 121 away from the test station 126, and the second conveying unit 122 extends longitudinally along the first direction. The loading station 124 and the unloading station 125 are respectively formed at the opposite ends of the second conveying unit 122 along the first direction, and are located at the side of the second conveying unit 122 away from the ground along the second direction. The second conveying unit 122 is used to drive the carrying unit 123 to move relative to the second conveying unit 122 along the first direction. The first path is formed at one end of the first conveying unit 121 and the second conveying unit 122 along the first direction, and the second path is formed at the other end of the first conveying unit 121 and the second conveying unit 122 along the first direction.

[0063] See also Figure 1 and Figure 2 The carrying unit 123 is movably disposed on the first conveying unit 121 along a third direction, or the carrying unit 123 is movably disposed on the second conveying unit 122 along a first direction, and a side of the carrying unit 123 away from the first conveying unit 121 or the second conveying unit 122 along a second direction is used to carry the bridge assembly 200 to be tested.

[0064] Specifically, in one embodiment, the bearing unit 123 includes a mounting portion 1231 and at least two supporting bearing portions 1232. The mounting portion 1231 is movably disposed on the first conveying unit 121 along the third direction, or the mounting portion 1231 is movably disposed on the second conveying unit 122 along the first direction, and all the supporting bearing portions 1232 are installed at intervals along the first direction on the side of the mounting portion 1231 away from the first conveying unit 121 or the second conveying unit 122 along the second direction, and the side of the supporting bearing portion 1232 away from the mounting portion 1231 along the second direction is used to support and carry the bridge assembly 200 to be tested. It can be understood that the supporting bearing portions 1232 are arranged at intervals to adapt to the structure of the bridge assembly 200 to be tested, and the bearing unit 123 may include three, four or more supporting bearing portions 1232 arranged at intervals to support and carry the bridge assembly 200 to be tested, as long as there is no interference between the supporting bearing portions 1232 and the bridge assembly 200 to be tested.

[0065] In this way, by setting up the conveying mechanism 120, the bridge assembly 200 to be tested can be automatically conveyed to the test station 126 to facilitate the subsequent running-in test, and the automatic conveying method is also conducive to saving conveying time and improving the detection efficiency of the running-in test.

[0066] When one bridge assembly 200 to be tested is at the test station 126, the other bridge assembly 200 to be tested can be at the machine loading station 124 or the machine unloading station 125. In other words, the running-in test of the bridge assembly 200 to be tested and the auxiliary work of loading and unloading are independent of each other. When one bridge assembly 200 to be tested is undergoing a running-in test at the test station 126, the other bridge assembly 200 to be tested can be undergoing auxiliary work of loading and unloading at the machine loading station 124 or the machine unloading station 125. The positions of the loading station 124 and the unloading station 125 can be interchanged.

[0067] In this way, by providing the test station 126, the loading station 124 and the unloading station 125 which are independent of each other, the detection efficiency of the running-in test can be improved.

[0068] In some embodiments, the bridge assembly running-in test bench 100 further includes two supporting positioning members (not shown in the figure). The two supporting positioning members are respectively installed at opposite ends of the bridge assembly 200 to be tested along the first direction, and the two supporting positioning members can be respectively arranged on the centering members 131 of the two centering mechanisms 130, and the centering member 131 can move along the second direction toward a side away from the base 110 to lift the supporting positioning members and the bridge assembly 200 to be tested, so as to automatically center the bridge assembly 200 to be tested.

[0069] Optionally, the supporting positioning member is a process wheel rim, and according to the different structures of the wheel hubs of the bridge assemblies 200 to be tested, the supporting positioning member is designed with a variety of different internal dimension structures to adapt to the wheel hubs of various bridge assemblies 200 to be tested, but the external dimension structures of all the supporting positioning members are the same to adapt to the centering member 131.

[0070] In this way, by designing a variety of support positioning members with different internal dimensional structures and the same external dimensional structures, the bridge assembly running-in test bench 100 can be adapted to various structures of bridge assemblies 200 to be tested; moreover, when the conveying mechanism 120 is in the test station 126, the centering member 131 can be moved along the first direction to make the support positioning member located in the centering member 131, and then the centering member 131 can be moved along the second direction to simultaneously lift the support positioning member and the bridge assembly 200 to be tested. After the centering member 131 lifts the bridge assembly 200 to be separated from the load-bearing unit 123, the support positioning member can still support the bridge assembly 200 to be tested.

[0071] Figure 4 Schematic diagram of the structure of a clamping mechanism in one embodiment of the present invention.

[0072] See also Figure 4 , and combined with Figure 1 and Figure 2In some embodiments, the bridge assembly running-in test bench 100 further includes a clamping mechanism 140. The clamping mechanism 140 is movably mounted on the base 110 along the second direction, and is used to clamp the bridge assembly 200 to be tested. The clamping mechanism 140 includes a mounting seat 141 and a clamping assembly 142 mounted on the mounting seat 141, and the clamping assembly 142 includes a second slide rail 1421, a clamping member 1422, and a third driving member 1423. The mounting seat 141 is a roughly rectangular frame structure, and the mounting seat 141 is mounted on one side of the base 110 along the second direction, and is located between the two centering mechanisms 130.

[0073] The second slide rail 1421 is installed on the side of the mounting seat 141 facing the supporting positioning member, and the clamping member 1422 is movably installed on the second slide rail 1421 along the second direction, and is used to clamp the bridge assembly 200 to be tested. Specifically, the clamping member 1422 includes a first clamping portion 1422a and a second clamping portion 1422b spaced apart along the second direction, one end of the first clamping portion 1422a along the third direction is movably installed on the second slide rail 1421 along the second direction, and one end of the second clamping portion 1422b along the third direction is movably installed on the second slide rail 1421 along the second direction, and the interval in the second direction between one end of the first clamping portion 1422a away from the second slide rail 1421 and one end of the second clamping portion 1422b away from the second slide rail 1421 defines a clamping space 143, and the bridge assembly 200 to be tested can be clamped in the clamping space 143.

[0074] The third driving member 1423 is mounted on the clamping member 1422 to drive the clamping member 1422 to move along the second direction. The third driving member 1423 has an output end (not shown in the figure). If the third driving member 1423 is mounted on the first clamping portion 1422a, the output end is connected to the second clamping portion 1422b. Conversely, if the third driving member 1423 is mounted on the second clamping portion 1422b, the output end is connected to the first clamping portion 1422a. In other words, the output end of the third driving member 1423 can drive the first clamping portion 1422a away from or close to the second clamping portion 1422b, or the output end of the third driving member 1423 can drive the second clamping portion 1422b away from or close to the first clamping portion 1422a, so as to adjust the size of the clamping space 143. Optionally, the third driving member 1423 is a driving cylinder.

[0075] In some embodiments, the clamping mechanism 140 includes two clamping assemblies 142, and the two clamping assemblies 142 are installed at intervals along the first direction on the mounting seat 141. The two opposite ends of the bridge assembly 200 to be tested along the first direction are respectively clamped in two clamping spaces 143 formed by the two clamping assemblies 142, so that after the centering piece 131 is separated from the supporting positioning piece, the clamping mechanism 140 can clamp the bridge assembly 200 to be tested. At the same time, the two clamping assemblies 142 are arranged at intervals, which is also conducive to keeping the bridge assembly 200 to be tested balanced and improving the reliability and stability of clamping.

[0076] In some embodiments, the clamping mechanism 140 further includes a locking member 144, which is mounted on the mounting seat 141 and is used to lock the clamping member 1422. The specific type of the locking member 144 is not limited herein, and the locking member 144 needs to be able to lock the clamping member 1422 after the clamping member 1422 clamps the bridge assembly 200 to be tested, that is, to limit the movement of the clamping member 1422 along the second direction, and at the same time, the locking member 144 can also be unlocked to allow the clamping member 1422 to move along the second direction.

[0077] For ease of understanding, the specific conveying and clamping process is briefly described below:

[0078] First, the operator places the bridge assembly 200 to be tested on the carrying unit 123 located at the machine loading station 124, and installs two supporting positioning members at opposite ends of the bridge assembly 200 to be tested along the first direction (at this time, the carrying unit 123 can play a role in the initial positioning of the bridge assembly 200 to be tested);

[0079] Secondly, the carrying unit 123 carries the bridge assembly 200 to be tested and the two supporting positioning members to the test station 126 through the second conveying unit 122 and the first conveying unit 121, and moves the two centering members 131 along the first direction to align the two supporting positioning members with the two centering members 131 (at this time, the centering members 131 are in the position to be lifted), and then moves the centering members 131 along the second direction toward the side away from the base 110 to lift the supporting positioning members and the bridge assembly 200 to be tested (at this time, the supporting positioning members are aligned with the two centering members 131). The supporting positioning member and the bridge assembly 200 to be tested will be separated from the carrying unit 123 and automatically centered), and the clamping assembly 142 is moved along the second direction to clamp the bridge assembly 200 to be tested, and then the clamping assembly 142 is locked by the locking member 144 to limit the movement of the clamping assembly 142 in the second direction. At this time, the centering member 131 can be moved along the second direction toward the side close to the base 110 to the position to be lifted, and the supporting positioning member will also be separated from the centering member 131, and then the running-in test will be carried out;

[0080] Again, when the running-in test is completed, the centering piece 131 moves along the second direction toward the side away from the base 110 to support the supporting positioning piece, and then the locking piece 144 is unlocked and the clamping assembly 142 is released. The centering piece 131 moves along the second direction toward the side close to the base 110 to the lifting position to allow the bridge assembly 200 to be tested to be placed on the carrying unit 123, and then the carrying unit 123 is transported to the unloading station 125 by the first conveying unit 121 and the second conveying unit 122, and the operator can then perform disassembly and other work.

[0081] It can be understood that when one bridge assembly 200 to be tested is undergoing a running-in test at the test station 126, another bridge assembly 200 to be tested can be installed at the loading station 124 or disassembled at the unloading station 125, that is, the loading station 124 and the unloading station 125 work independently of the test station 126.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A bridge assembly running-in test bench, characterized in that: include: A base extending longitudinally along a first direction; Two centering mechanisms are provided on one side of the base along the second direction, each of the centering mechanisms comprises a centering piece, and the two centering pieces are spaced apart from each other and arranged opposite to each other along the first direction; a V-shaped groove for placing the bridge assembly to be tested is provided on the side of each centering piece along the second direction away from the base, the V-shaped groove passes through the centering piece along the first direction, each of the V-shaped grooves has a symmetry plane parallel to the first direction, and the symmetry planes of the two V-shaped grooves overlap; The centering member is configured to be movable relative to the base along the second direction to lift the bridge assembly to be tested, thereby automatically centering the bridge assembly to be tested; The first direction and the second direction are perpendicular to each other.

2. The axle assembly running-in test bench according to claim 1, characterized in that: The axle assembly running-in test bench also includes a conveying mechanism; One end of the conveying mechanism is arranged on one side of the base along the second direction, and one end of the conveying mechanism is arranged on the base and is located between the two centering mechanisms. The conveying mechanism is used to convey the bridge assembly to be tested.

3. The axle assembly running-in test bench according to claim 2, characterized in that: The conveying mechanism has a loading station, a unloading station and a testing station, and the testing station is formed at one end of the conveying mechanism between the two centering mechanisms; The conveying mechanism includes a carrying unit for carrying the bridge assembly to be tested, and the carrying unit is configured to be able to move from the upper machine station along a first path to the test station, or from the test station along a second path to the lower machine station, and at least part of the first path and the second path are set independently of each other.

4. The axle assembly running-in test bench according to claim 3, characterized in that: The conveying mechanism also includes a first conveying unit and a second conveying unit; The first conveying unit extends along the third direction, and one end of the first conveying unit in the third direction is located between the two centering mechanisms and is provided with the test station, and the first conveying unit is used to drive the carrying unit to move relative to the first conveying unit along the third direction; The second conveying unit is connected to an end of the first conveying unit away from the test station, and the second conveying unit extends along the first direction, and the second conveying unit is used to drive the carrying unit to move relative to the second conveying unit along the second direction; The first path is formed at one end of the first conveying unit and the second conveying unit along the first direction; the second path is formed at the other end of the first conveying unit and the second conveying unit along the first direction.

5. The axle assembly running-in test bench according to claim 1, characterized in that: Each of the centering mechanisms further comprises: A first slide rail is mounted on the base; the centering member is movably mounted on a side of the first slide rail away from the base along the first direction; A first driving member, disposed on the base, wherein an output end of the first driving member is connected to the centering member, and is used to drive the centering member to move along the first direction; The second driving member is arranged on the base, and the output end of the second driving member is connected to the centering member, so as to drive the centering member to move along the second direction.

6. The axle assembly running-in test bench according to claim 1, characterized in that: The bridge assembly running-in test bench also includes two supporting positioning members; The two supporting positioning members are used to be respectively installed at the opposite ends of the bridge assembly to be tested along the first direction, and the two supporting positioning members can be respectively arranged on the two centering members, and the centering members can be moved along the second direction toward the side away from the base to lift the supporting positioning members and the bridge assembly to be tested, so that the bridge assembly to be tested can be automatically centered.

7. The axle assembly running-in test bench according to claim 1, characterized in that: The axle assembly running-in test bench also includes a clamping mechanism; The clamping mechanism is movably mounted on the base along the second direction, and is used to clamp the bridge assembly to be tested.

8. The axle assembly running-in test bench according to claim 7, characterized in that: The clamping mechanism comprises: A mounting seat, mounted on one side of the base along the second direction and located between the two centering mechanisms; A clamping assembly, mounted on the mounting seat, and comprising a second slide rail, a clamping member and a third driving member; Wherein, the second slide rail is installed on a side of the mounting seat facing the bridge assembly to be tested; The clamping member is movably mounted on the second slide rail along the second direction, and the clamping member is used to clamp the bridge assembly to be tested; The third driving member is installed on the clamping member, and the third driving member is used to drive the clamping member to move along the second direction.

9. The axle assembly running-in test bench according to claim 8, characterized in that: The clamping mechanism also includes a locking member; The locking member is mounted on the mounting seat and is used to lock the clamping member.

10. The axle assembly running-in test bench according to claim 8, characterized in that: The clamping mechanism includes two clamping assemblies; The two clamping assemblies are installed on the mounting seat at intervals along the first direction.

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