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CN-122016532-A - Multidirectional stress hardness testing structure for automobile trial-manufactured parts

CN122016532ACN 122016532 ACN122016532 ACN 122016532ACN-122016532-A

Abstract

The invention relates to the technical field of automobile test parts, in particular to a multidirectional stress hardness testing structure for automobile test parts, which comprises a frame and a base fixedly connected to the bottom of the frame, the top fixedly connected with hydraulic means of frame, loading dish is installed to hydraulic means's flexible end bottom, the top of frame is equipped with the test piece seat. The invention provides a multidirectional stress hardness testing structure for automobile test parts, which is provided with a hydraulic device for providing pressure and a loading disc for loading the pressure on the parts, wherein the parts can be firstly placed at the top of a test piece part of a test piece seat when in use, then the tested parts can be clamped through clamp parts until main clamp shafts of two groups of clamp parts are contacted with the surfaces of the parts, and the moving action of a sliding sheet can be stopped after the sliding sheet is pushed to the main clamp shafts by liquid, so that the parts can be placed at any position at the top of the test piece part.

Inventors

  • GUO BUHUA
  • SONG YUJUN
  • HUANG JINBAO

Assignees

  • 思研精密汽车模具(扬州)有限公司

Dates

Publication Date
20260512
Application Date
20260126

Claims (10)

  1. 1. The multidirectional stress hardness testing structure for the automobile trial-manufactured parts comprises a frame (1) and a base (2) fixedly connected to the bottom of the frame (1), and is characterized in that a hydraulic device (3) is fixedly connected to the top of the frame (1), a loading disc (4) is installed at the bottom of a telescopic end of the hydraulic device (3), a test piece seat (5) is arranged at the top of the base (2), and two groups of clamp parts (6) are arranged at the top of the test piece seat (5); The test piece seat (5) comprises a support (51), a stress arc plate (52) is fixedly connected to the top of the support (51), limiting sliding frames (53) are fixedly connected to the two sides of the top of the support (51), arc frames (54) are slidably connected to the top of the stress arc plate (52), side frames (55) are fixedly connected to the two ends of each arc frame (54), the outer sides of the side frames (55) are slidably connected with the inner sides of the limiting sliding frames (53), and test piece parts (56) are fixedly connected to the top of each arc frame (54); The fixture comprises a fixture body (6), wherein the fixture body (6) comprises a hollow frame (61), two groups of hollow frames (61) are respectively located at two sides of a test piece seat (5), a sliding sheet (62) is connected to the inner side of the hollow frame (61) in a sliding mode, a clamping rod (63) is connected to one side of the hollow frame (61) close to a support (51) in a sliding mode, one side of the clamping rod (63) close to the sliding sheet (62) is fixedly connected with a rotating seat (64) in one side of the clamping rod (63) away from the sliding sheet (62), a clamping frame (65) is connected to one side of the rotating seat (64) in a rotating mode, a main clamping shaft (67) is connected to one side of the clamping frame (65) away from the rotating seat (64), two side frames (68) are connected to one side of the rotating frame in a rotating mode, a subsidiary clamping shaft (69) is connected to the inner side of the side frame (68) in a rotating mode, and a torsion spring is fixedly connected between the clamping frame (65) and the rotating seat (64).
  2. 2. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 1, wherein two groups of electric guide rails (7) are arranged at the top of the base (2), the bottom of each electric guide rail (7) is fixedly connected with the top of the base (2), a sliding table of each electric guide rail (7) is fixedly connected with the bottom of each electric guide rail (7), a flat frame (8) is fixedly connected with the sliding table of each electric guide rail (7), and the top of each flat frame (8) is fixedly connected with the corresponding support (51).
  3. 3. The multi-directional stress hardness testing structure for automobile trial-manufacturing parts according to claim 1, wherein an auxiliary seat (9) is fixedly connected to the left side of the support seat (51), a servo motor (10) is fixedly connected to the top of the auxiliary seat (9), an external gear (11) is fixedly connected to the output end of the servo motor (10), an internal gear (12) is fixedly connected to the left side of the left side frame (55), and the outer side of the external gear (11) is in meshed connection with the internal gear (12).
  4. 4. The multi-directional stress hardness testing structure for automobile trial-manufactured parts according to claim 1, wherein a fork frame (13) is connected to the telescopic end of the electric cylinder (66), two transmission pins (14) are fixedly connected to one side, away from the electric cylinder (66), of the fork frame (13), and the top and the bottom of the two transmission pins (14) are respectively connected with the inner sides of the two side frames (68) in a sliding mode.
  5. 5. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 1, wherein the outer sides of the two side frames (55) are fixedly connected with connecting frames (15), and one side, close to the empty frames (61), of each connecting frame (15) is fixedly connected with each empty frame (61).
  6. 6. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 1, wherein the bottom of the empty frame (61) is fixedly connected with a metal pipe (16) through a sealing piece, the inner side of the arc-shaped frame (54) is fixedly connected with a water tank (17) and a pump device (18), and the pump device (18) is respectively communicated with the water tank (17) and the metal pipe (16).
  7. 7. The multi-directional stress hardness testing structure for automobile trial parts according to claim 1, wherein the loading disc (4) comprises a stress inner ring (41), a branch frame (42) is connected to the outer side of the stress inner ring (41) in a sliding mode, a loading module (43) is connected to the outer side of the branch frame (42) in a sliding mode, a loading rod (44) is fixedly connected to the bottom of the loading module (43), and a pressure sensor is fixedly connected to the bottom of the loading rod (44).
  8. 8. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 7, wherein a friction pad (19) is fixedly connected to the inner side of the loading module (43), the friction pad (19) is in contact with the branch frame (42), a mounting bolt (20) is connected to the top of the loading module (43) in a threaded manner, and the bottom of the mounting bolt (20) penetrates through the friction pad (19) and the bottom of the loading module (43) and is in threaded connection with a loading rod (44).
  9. 9. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 7, wherein the top of the branch frame (42) is in threaded connection with a fastening screw (21), and the bottom of the fastening screw (21) is fixedly connected with a stress inner ring (41).
  10. 10. The multi-directional stress hardness testing structure for automobile trial-manufacture parts according to claim 7, wherein a pressing plate (22) is fixedly connected to the inner side of the stress inner ring (41), the top of the pressing plate (22) is connected with the telescopic end of the hydraulic device (3) in height, an auxiliary frame (23) is fixedly connected to the top of the pressing plate (22), the bottom of the auxiliary frame (23) is connected with an auxiliary outer ring (24), and the bottom of the auxiliary outer ring (24) is connected with the top of the branch frame (42) in a sliding mode.

Description

Multidirectional stress hardness testing structure for automobile trial-manufactured parts Technical Field The invention relates to the technical field of automobile test parts, in particular to a multidirectional stress hardness test structure for automobile test parts. Background It is known that automobile trial-manufacturing parts refer to non-mass production standard parts produced for verifying design schemes, process feasibility and whole automobile matching in automobile research and development stages and small batch trial production stages, are core links for connecting automobile design and mass production, and are widely applied to scenes such as sample automobile manufacture, bench test and road test verification, while automobile trial-manufacturing part pressure strength test is a core test link for verifying structural reliability, material mechanical property and design rationality of parts under pressure load, and is used for directly determining whether the trial-manufacturing parts meet the requirements of whole automobile assembly, performance test and mass production conversion and mainly aiming at key bearing trial-manufacturing parts such as automobile body structural parts, chassis bearing parts and power assembly parts. In the prior art, the hydraulic universal testing machine is used for carrying out pressure loading and recording the stress and deformation conditions of automobile test parts, but the hydraulic universal testing machine is limited by a plurality of parts which are not standard parts, the outline of the hydraulic universal testing machine is usually uneven, the hydraulic universal testing machine is difficult to fix in a conventional mode during testing, the rigidity clamping applying larger pressure influences the deformation trend of the hydraulic universal testing machine when the parts are pressed, and the testing machine can only change the pressure applying position or a plurality of stress points by changing a loading head during loading the pressure, so that the flexibility is poor, the pressure applying point is difficult to flexibly adjust according to the requirement, meanwhile, the angle inclination adjustment of the parts is difficult to be stably carried out to simulate the inclination stress condition, and the hydraulic universal testing machine is inconvenient to use; based on the above mentioned situation, we find that the stress hardness test on the automobile test part in the prior art is difficult to avoid the above problems at the same time, so we propose a multi-directional stress hardness test structure for the automobile test part, which can flexibly change the pressure loading position, flexibly adapt to different part shapes to temporarily fix, reduce the pressure required for fixing to ensure the test precision, and simultaneously enable the part to be subjected to the stress test at various angles. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a multidirectional stress hardness test structure for an automobile trial-manufactured part, which has the advantages of flexibly changing the pressure loading position, flexibly adapting to different part shapes to carry out temporary fixing, reducing the pressure required by fixing to ensure the test precision, and simultaneously enabling the part to be subjected to compression test at various angles. (II) technical scheme The technical aim of the invention is achieved by the following technical scheme that the multidirectional stress hardness testing structure for the automobile trial-manufactured part comprises a frame and a stand fixedly connected to the bottom of the frame, wherein the top of the frame is fixedly connected with a hydraulic device, the bottom of a telescopic end of the hydraulic device is provided with a loading disc, the top of the stand is provided with a test piece seat, and the top of the test piece seat is provided with two groups of clamp parts; The test piece seat comprises a support, wherein the top of the support is fixedly connected with a stress arc plate, both sides of the top of the support are fixedly connected with a limiting sliding frame, the top of the stress arc plate is slidably connected with an arc frame, both ends of the arc frame are fixedly connected with side frames, the outer sides of the side frames are slidably connected with the inner sides of the limiting sliding frame, and the top of the arc frame is fixedly connected with a test piece part; The fixture comprises a fixture body, wherein the fixture body comprises a fixture frame and two groups of fixture frames, the two groups of fixture frames are respectively located at two sides of a test piece seat, sliding vanes are connected to the inner sides of the fixture frame in a sliding manner, clamping rods are connected to one sides of the fixture frame, which are close to a support, and fixedly connected with rotary bas