Fatigue test multi-shaft tool platform

Abstract

The utility model provides a fatigue test multi-axis tool platform, which comprises a bottom table, an X-axis assembly, a Y-axis assembly and a torsion assembly, wherein the bottom table is provided with the X-axis assembly, the Y-axis assembly and the torsion assembly; an X-axis push rod and a Y-axis push rod are arranged on the X-axis assembly and the Y-axis assembly respectively, and the movement direction of the X-axis push rod is perpendicular to the movement direction of the Y-axis push rod. The movement direction of the Y-axis push rod is parallel to the rotation axis of the torsion assembly; the workpiece clamp used for fixing a bushing test piece is arranged at the tail end of the X-axis push rod, the torsion assembly abuts against one end for fixing the bushing test piece, the X-axis assembly is in sliding connection with the bottom table, the tail end of the Y-axis push rod is connected with the X-axis assembly, and the X-axis push rod is pushed by the Y-axis push rod to move along the rotating axis of the torsion assembly. According to the utility model, the multi-direction stress test can be synchronously carried out on the bushing test piece, the complex working condition of multi-direction stress during the movement of an automobile is simulated, the fatigue test efficiency is improved, and the reliability of a product is obtained.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts testing technology, and in particular relates to a multi-axis tooling platform for fatigue testing. Background Technology

[0002] With fierce competition in the automotive market, major automakers need to capture market share. Currently, the time required for vehicle development is getting shorter and shorter, which requires component manufacturers to have higher requirements for vehicle testing simulation. As the accuracy of the input conditions for the whole vehicle to match the actual working conditions of the vehicle improves, multi-axis bench testing has become a problem that automotive component manufacturers must overcome.

[0003] Currently, most tests on automotive parts still apply test forces in a single direction. This method cannot simulate the complex working conditions of a car being subjected to forces in multiple directions during driving, and cannot truly reflect the reliability of automotive parts. Utility Model Content

[0004] This invention provides a multi-axis tooling platform for fatigue testing, which aims to solve the problem that current single-axis testing devices cannot simulate the complex working conditions of a car under multi-directional forces during driving, and cannot truly reflect the reliability of automotive parts.

[0005] This utility model is implemented as follows: a multi-axis tooling platform for fatigue testing, comprising:

[0006] A base platform is provided, on which an X-axis assembly, a Y-axis assembly, and a torsion assembly are mounted; the X-axis assembly and the Y-axis assembly are respectively provided with an X-axis push rod and a Y-axis push rod, the movement directions of the X-axis push rod and the movement directions of the Y-axis push rod are perpendicular to each other; the movement direction of the Y-axis push rod is parallel to the rotation axis of the torsion assembly.

[0007] The workpiece fixture for fixing the bushing test piece is located at the end of the X-axis push rod. The torsion assembly abuts against one end of the fixed bushing test piece. The X-axis assembly is slidably connected to the base. The end of the Y-axis push rod is connected to the X-axis assembly. The X-axis push rod moves along the rotation axis of the torsion assembly under the push of the Y-axis push rod.

[0008] Preferably, the base is provided with an X-axis base, and the X-axis assembly further includes a secondary sliding stage and a side sliding plate vertically connected to the secondary sliding stage. The secondary sliding stage is slidably connected to the X-axis base, and a connecting plate is provided on one side of the secondary sliding stage. The Y-axis push rod is connected to the connecting plate, and the X-axis push rod is disposed on the side sliding plate.

[0009] Preferably, the Y-axis assembly includes a Y-axis base and a side guide plate vertically connected to the Y-axis base. The Y-axis base is connected to the base platform, and the Y-axis push rod is disposed on the side guide plate.

[0010] Preferably, the side sliding plate is provided with a first lifting sliding seat, the X-axis push rod is mounted on the first lifting sliding seat, and the side sliding plate is also provided with a first sliding groove, through which the X-axis push rod passes through the side sliding plate.

[0011] Preferably, the side guide plate is provided with a second lifting sliding seat, the Y-axis push rod is mounted on the second lifting sliding seat, and the side guide plate is also provided with a second sliding groove, through which the Y-axis push rod passes through the side guide plate.

[0012] Preferably, the fatigue testing multi-axis tooling platform further includes a fixed base, which includes a fixed slide, a third lifting slide, and a U-shaped clamp. The U-shaped clamp is mounted on the third lifting slide, and the third lifting slide slides on the fixed slide.

[0013] Preferably, the torsion assembly includes a torsion base, a torsion sliding guide, and a torsion motor. The torsion motor is mounted on the torsion sliding guide, the torsion sliding guide slides on the torsion base, and the torsion motor is provided with a torsion shaft, which abuts against the bushing test piece.

[0014] Preferably, the base platform is further provided with a torsion support seat on the side away from the torsion assembly, and the torsion support seat is provided with a support shaft rod, which abuts against the end face of the fixed bushing test piece away from the torsion assembly.

[0015] Preferably, the workpiece fixture is inserted into the U-shaped area of ​​the U-clamp, and the support shaft and torsion shaft are inserted into the U-shaped area from both sides of the U-clamp and abut against the fixed bushing test piece on the workpiece fixture.

[0016] Preferably, the U-shaped clamp is provided with a shaft hole for accommodating the support shaft and the torsion shaft.

[0017] Compared with the prior art, the embodiments of this application have the following main advantages:

[0018] The fatigue testing multi-axis tooling platform provided by this utility model integrates the X-axis component, the Y-axis component and the torsion component, allowing the bushing test piece to be simultaneously subjected to force testing in multiple directions, thereby improving the efficiency of fatigue testing. It can simultaneously simulate the complex working conditions of multi-directional force during automobile movement, and better understand the reliability of the product. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a multi-axis tooling platform for fatigue testing provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the X-axis assembly, Y-axis assembly, and torsion assembly of a fatigue testing multi-axis tooling platform provided by this utility model.

[0021] Figure 3 This is a top view of the X-axis assembly, Y-axis assembly, and torsion assembly of a fatigue testing multi-axis tooling platform provided by this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of a bushing test piece in a multi-axis fatigue testing fixture platform provided by this utility model.

[0023] Figure 5 This is a schematic diagram of the workpiece fixture structure of a fatigue testing multi-axis tooling platform provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the workpiece fixture, torsion support seat, and torsion assembly structure of a fatigue testing multi-axis tooling platform provided by this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Base platform; 200. X-axis assembly; 210. X-axis base; 220. Secondary sliding stage; 230. Side sliding plate; 240. First lifting sliding seat; 250. X-axis push rod; 300. Y-axis assembly; 310. Y-axis base; 320. Side guide plate; 330. Second lifting sliding seat; 340. Y-axis push rod; 410. Torsion assembly; 411. Torsion base; 412. Torsion sliding guide; 413. Torsion motor; 420. Torsion support seat; 500. Fixed seat; 510. Fixed slide; 520. Third lifting sliding seat; 530. U-shaped clamp; 600. Workpiece fixture; 700. Bushing test piece. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] This utility model embodiment provides a multi-axis tooling platform for fatigue testing, such as... Figures 1-6 As shown, the fatigue testing multi-axis tooling platform includes:

[0030] The base platform 100 serves as the loading base for a multi-axis tooling platform for fatigue testing. The base platform 100 is made of a loading plate that can be fixed with bolts. An X-axis assembly 200 and a Y-axis assembly 300 are provided on the base platform 100. The X-axis assembly 200 and the Y-axis assembly 300 generate forces that act on the bushing test piece 700. Here, the direction of the force generated by the X-axis assembly 200 is taken as the first direction, and the direction of the force generated by the Y-axis assembly 300 is taken as the second direction. The first direction and the second direction are perpendicular to each other.

[0031] The workpiece clamp 600 and the torsion assembly 410 are used to fix the bushing test piece 700. The workpiece clamp 600 is set at the end of the X-axis push rod 250, and the torsion assembly 410 abuts against one end of the fixed bushing test piece 700.

[0032] X-axis assembly 200, which includes a secondary sliding stage 220, a side sliding plate 230, a first lifting sliding seat 240 and an X-axis push rod 250. The X-axis push rod 250 is disposed on the first lifting sliding seat 240, which is connected to the side sliding plate 230. The first lifting sliding seat 240 mainly adjusts the height of the X-axis push rod 250 and the base 100.

[0033] Y-axis assembly 300 includes a Y-axis push rod 340, a Y-axis base 310, and a side guide plate 320 vertically connected to the Y-axis base 310. The Y-axis base 310 is connected to the base platform 100. The Y-axis push rod 340 is disposed on the side guide plate 320. A connecting plate is provided on one side of the secondary sliding table 220, and the Y-axis push rod 340 is connected to the connecting plate.

[0034] The base 100 is also provided with an X-axis base 210, which is provided with a guide rail. The bottom of the secondary sliding stage 220 is provided with a track groove adapted to the guide rail. When the secondary sliding stage 220 slides on the guide rail through the track groove, the X-axis push rod 250 will directly generate a first-direction thrust on the bushing test piece 700; while the Y-axis push rod 340 generates a thrust on the X-axis assembly 200. Under the action of the Y-axis push rod 340, the X-axis assembly 200 will simultaneously generate a second-direction thrust on the bushing test piece 700, so that the outer structure of the bushing test piece 700 is subjected to forces in two directions simultaneously during the test. Here, the forces applied by the X-axis assembly 200 and the Y-axis assembly 300 are reciprocating forces, simulating the reciprocating motion of forces under complex working conditions.

[0035] The base 100 is also provided with a torsion support 420 on the side away from the torsion assembly 410. The torsion support 420 is provided with a support shaft, which abuts against the end face of the fixed bushing test piece 700 away from the torsion assembly 410. Since the torsion support 420 and the torsion assembly 410 abut against the two ends of the bushing test piece 700 respectively, and since the movement of the bushing test piece 700 is restricted, the torsion torque generated by the torsion assembly 410 acts directly on the bushing test piece 700. Therefore, the bushing test piece 700 will also be subjected to torque testing.

[0036] In this application, by integrating the X-axis assembly 200 and the Y-axis assembly 300 with the torsion assembly 410, the bushing test piece 700 can simultaneously perform multi-directional force tests, thereby improving the efficiency of fatigue testing and simulating the complex working conditions of multi-directional forces during automobile movement on multiple axes, thus better understanding the reliability of the product.

[0037] As a preferred embodiment of this invention, the fatigue testing multi-axis tooling platform further includes a fixed base 500, which includes a fixed slide 510, a third lifting slide 520, and a U-shaped clamp 530. The U-shaped clamp 530 is mounted on the third lifting slide 520, and the third lifting slide 520 slides on the fixed slide 510.

[0038] In this embodiment, the middle area of ​​the U-shaped clamp 530 serves as the placement area for the bushing test piece 700, and the X-axis assembly 200 is connected to the bushing test piece 700 via the workpiece clamp 600. (See attached diagram.) Figure 5 and attached Figure 6 The workpiece clamp 600 here uses two components with semi-circular notches to clamp the outer edge of the bushing test piece 700. The workpiece clamp 600 applies force to the bushing test piece 700. Similarly, the torsion assembly 410 is directly connected to the bushing test piece 700 located in the U-shaped clamp 530.

[0039] In a preferred embodiment of this work, the first lifting sliding seat 240, the second lifting sliding seat 330, and the third lifting sliding seat 520 have the same structure. Taking the first lifting sliding seat 240 as an example, the first lifting sliding seat 240 includes a sliding seat, a lead screw, and an end seat. The end seats are located at both ends of the side sliding plate 230. The lead screw is connected to the end seat via a bearing. The lead screw extends out of the end seat away from the base 100. The sliding seat and the lead screw are connected using ball screw assembly technology. The sliding seat has a slider, and the slider slides on a sliding groove provided on the side sliding plate 230. It should be noted that the slider and the slide rail here use a limiting mechanism, and the slider cannot directly disengage from the opening of the sliding groove.

[0040] In a preferred embodiment of this invention, the torsion assembly 410 includes a torsion base 411, a torsion sliding guide 412, and a torsion motor 413. The torsion motor 413 is mounted on the torsion sliding guide 412, and the torsion sliding guide 412 slides on the torsion base 411. The torsion motor 413 is provided with a torsion shaft, which abuts against the bushing test piece 700. The torsion motor 413 simulates a reciprocating torsion motion through reciprocating rotation, allowing the inner and outer structures of the bushing test piece 700 to bear torsion forces.

[0041] The base 100, on the side away from the torsion assembly 410, is also provided with a torsion support 420. The torsion support 420 includes a support shaft, a support seat connected to the support shaft via bearings, and a sliding table. The support seat slides on the sliding table. The sliding table is driven by adjustment similar to that of the first lifting sliding seat 240, causing the support seat to change position so that the support shaft on the support seat abuts against the end face of the fixed bushing test piece 700 away from the torsion assembly 410. The sliding table and the torsion sliding guide 412 employ the same adjustment principle as the first lifting sliding seat 240, both being common machine tool position adjustment structures in the prior art.

[0042] The support shaft and the torsion shaft are inserted into the U-shaped area from both sides of the U-shaped clamp 530 and abut against the end face of the fixed bushing test piece 700 on the workpiece clamp 600. The U-shaped clamp 530 is provided with shaft holes to accommodate the support shaft and the torsion shaft.

[0043] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A multi-axis fatigue test fixture platform for use with a bushing test specimen (700), comprising: include: A base platform (100) is provided, on which an X-axis assembly (200), a Y-axis assembly (300), and a torsion assembly (410) are provided; the X-axis assembly (200) and the Y-axis assembly (300) are respectively provided with an X-axis push rod (250) and a Y-axis push rod (340), the movement direction of the X-axis push rod (250) and the movement direction of the Y-axis push rod (340) are perpendicular to each other; the movement direction of the Y-axis push rod (340) is parallel to the rotation axis of the torsion assembly (410); The workpiece fixture (600) for fixing the bushing test piece (700) is set at the end of the X-axis push rod (250). The torsion assembly (410) abuts against one end of the fixed bushing test piece (700). The X-axis assembly (200) is slidably connected to the base (100). The end of the Y-axis push rod (340) is connected to the X-axis assembly (200). The X-axis push rod (250) moves along the rotation axis of the torsion assembly (410) under the push of the Y-axis push rod (340).

2. A multi-axis fatigue testing fixture platform as claimed in claim 1, wherein, The base (100) is provided with an X-axis base (210). The X-axis assembly (200) also includes a secondary sliding stage (220) and a side sliding plate (230) vertically connected to the secondary sliding stage (220). The secondary sliding stage (220) is slidably connected to the X-axis base (210). A connecting plate is provided on one side of the secondary sliding stage (220). The Y-axis push rod (340) is connected to the connecting plate. The X-axis push rod (250) is disposed on the side sliding plate (230).

3. A multi-axis fatigue test fixture platform as claimed in claim 2, wherein, The Y-axis assembly (300) includes a Y-axis base (310) and a side guide plate (320) vertically connected to the Y-axis base (310). The Y-axis base (310) is connected to the base (100), and the Y-axis push rod (340) is disposed on the side guide plate (320).

4. A multi-axis fatigue test fixture platform as claimed in claim 3, wherein, The side sliding plate (230) is provided with a first lifting sliding seat (240), the X-axis push rod (250) is assembled on the first lifting sliding seat (240), the side sliding plate (230) is also provided with a first sliding groove, and the X-axis push rod (250) passes through the side sliding plate (230) through the first sliding groove.

5. The fatigue testing multi-axis tooling platform as described in claim 4, characterized in that, The side guide plate (320) is provided with a second lifting sliding seat (330), and the Y-axis push rod (340) is mounted on the second lifting sliding seat (330). The side guide plate (320) is also provided with a second sliding groove, and the Y-axis push rod (340) passes through the side guide plate (320) through the second sliding groove.

6. A multi-axis fatigue test fixture platform as claimed in claim 5, wherein, The fatigue testing multi-axis tooling platform also includes a fixed seat (500), which includes a fixed slide (510), a third lifting slide (520), and a U-shaped clamp (530). The U-shaped clamp (530) is mounted on the third lifting slide (520), and the third lifting slide (520) slides on the fixed slide (510).

7. A multi-axis fatigue test fixture platform as claimed in claim 6, wherein, The torsion assembly (410) includes a torsion base (411), a torsion sliding guide (412), and a torsion motor (413). The torsion motor (413) is mounted on the torsion sliding guide (412), the torsion sliding guide (412) slides on the torsion base (411), and the torsion motor (413) is provided with a torsion shaft, which abuts against the bushing test piece (700).

8. A multi-axis fatigue test fixture platform as claimed in claim 7, wherein, The base (100) is also provided with a torsion support (420) on the side away from the torsion assembly (410). The torsion support (420) is provided with a support shaft, which abuts against the end face of the fixed bushing test piece (700) away from the torsion assembly (410).

9. A multi-axis fatigue test fixture platform as claimed in claim 8, wherein, The workpiece fixture (600) is inserted into the U-shaped area of ​​the U-shaped clamp (530), and the support shaft and torsion shaft are inserted into the U-shaped area from both sides of the U-shaped clamp (530) and abut against the fixed bushing test piece (700) on the workpiece fixture (600).

10. A multi-axis fatigue test fixture platform as claimed in claim 9, wherein, The U-shaped clamp (530) is provided with a shaft hole for accommodating the support shaft and the torsion shaft.

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