CN211425880U

CN211425880U - Fatigue test system and fatigue test subassembly

Info

Publication number: CN211425880U
Application number: CN202020303665.0U
Authority: CN
Inventors: 陈见; 张永利; 刘方; 范维; 陈琛
Original assignee: FAW Volkswagen Automotive Co Ltd
Current assignee: FAW Volkswagen Automotive Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-09-04
Anticipated expiration: 2030-03-12

Abstract

The utility model discloses a fatigue test system and fatigue test subassembly. The utility model discloses a fatigue detection is used for testing the test piece, including body and one or more first fixed knot construct, first fixed knot construct and is used for fixed test piece, and first fixed knot constructs and includes: the first component is movably arranged on the body; the second part is rotationally fixed to the first part and is provided with a fixing piece used for fixing the test piece, and the fixing piece is movably arranged on the second part. The embodiment of the utility model provides an in the disclosed fatigue test system, with the help of the orientation that can adjust the test piece in a plurality of directions and the first fixed knot structure of position, realized a strong adaptability, the fatigue test system of multiple handle of ability adaptation and test scheme.

Description

Fatigue test system and fatigue test subassembly

Technical Field

The utility model relates to a mechanical parts's test especially relates to fatigue test.

Background

The automatic gear handle needs to pass a fatigue acceptance test before being loaded in batches, and is used as a part directly contacted with a driver, and the test of a handle button is particularly important. Because the traditional fatigue test system of handle button adopts large-scale industrial control equipment more, and control is complicated, and the detectable test piece quantity of single is limited, and the cycle of accomplishing the detection is also consequently relatively longer, and needs customization frock fixture specially to the gear shift handle of the different motorcycle types of cooperation installation.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a can realize adjusting the fatigue test system of a plurality of orientations or position of test piece. In order to achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, the present disclosure provides a fatigue testing system for testing a test piece, comprising a body and one or more first fixing structures for fixing the test piece, the first fixing structures comprising:

a first part movably mounted on the body;

the second part is rotationally fixed to the first part, and is provided with a fixing piece for fixing the test piece, and the fixing piece is movably arranged on the second part.

In one embodiment, the body comprises:

a support frame;

the driving unit is arranged on the supporting frame;

the first sliding rail is arranged on the supporting frame;

the loading unit is arranged on the first sliding rail in a sliding mode, the driving unit is used for driving the loading unit to reciprocate, and the loading unit comprises a testing head which is in contact with a testing piece.

In one embodiment, the test head is provided with a nylon block and/or a force sensor.

In one embodiment, the loading unit is fittingly mounted to the first slide rail, the loading unit includes a driven arm and one or more loading arms fixedly connected to the driven arm, the test head is disposed at an end of each of the loading arms, the driven arm is connected to the driving unit and slidably disposed on the first slide rail, and the driven arm drives the loading unit to reciprocate under the driving of the driving unit.

In one embodiment, the body further comprises a second slide rail: the first component is arranged on the second sliding rail in a sliding mode, a second fixing structure is arranged on the first component, and the first component is fixed on the supporting frame or the second sliding rail through the second fixing structure.

In one embodiment, the first component comprises a first assembly and a second assembly, the first assembly is fixed on the support frame through a second fixing structure, the second assembly is slidably mounted on the second slide rail, a position adjusting structure is arranged between the first assembly and the second assembly, the position adjusting structure is used for adjusting the relative position of the first assembly and the second assembly, and the second component is rotationally fixed on the first assembly.

In one embodiment, the moving direction of the first component relative to the body is a first direction, the rotating direction of the second component relative to the first component is a second direction, and the moving direction of the fixing component relative to the second component is a third direction, wherein the first direction, the second direction and the third direction are different or opposite in pairs.

In one embodiment, the second part is provided with a first through hole, the fixing member passes through the first through hole, and the fixing member is provided with a third fixing structure for fixing the fixing member to the second part.

In one embodiment, the first through hole is a long slot, and the length extending direction of the first through hole is different from or opposite to the first direction, the second direction and the third direction.

In a second aspect, the present disclosure provides a fatigue testing assembly comprising the fatigue testing system of any of the embodiments of the first aspect, and a test piece secured in the first securing structure.

To sum up, the embodiment of the utility model provides an in the disclosed fatigue test system and fatigue test subassembly can be according to the test piece of different grade type or model to and the test demand of difference, carry out multidirectional regulation to the test piece.

Drawings

Fig. 1 is a schematic perspective view of a fatigue testing system according to some embodiments of the present disclosure;

fig. 2 is a schematic perspective view of a support frame of a fatigue testing system according to some embodiments of the present disclosure;

FIG. 3 is a schematic perspective view of a body and a first stationary structure of a fatigue testing system according to some embodiments of the present disclosure;

FIG. 4 is a schematic perspective view of a loading unit of a fatigue testing system according to some embodiments of the present disclosure;

FIG. 5 is a schematic perspective view of a first stationary structure of a fatigue testing system according to some embodiments of the present disclosure;

fig. 6 is a schematic exploded view of a first securing mechanism of a fatigue testing system according to some embodiments of the present disclosure.

Detailed Description

The fatigue testing system and the fatigue testing assembly of the present disclosure are described in further detail below with reference to the figures and the specific embodiments. Advantages and features of the present invention will become apparent from the following detailed description and claims. It is noted that the drawings are in greatly simplified form and employ non-precise ratios for the purposes of facilitating and distinctly facilitating the description of the embodiments of the present invention.

Exemplarily, fig. 1 is a schematic perspective view of a fatigue testing system according to some embodiments of the present disclosure, referring to fig. 1, in some embodiments of the present disclosure, there is provided a fatigue testing system for fatigue testing a button of a test piece, including a body 2 and one or more first fixing structures 3 for fixing a test piece 4, wherein the first fixing structures 3 include, as shown in fig. 5: a first member 31 mounted on the support 1, the first member 31 being adjustable in its position on the support 1; a second part 32 rotatably connected to the first part 31, the second part 32 being provided with a fixing means for fixing the test piece 4 (e.g. a hand lever), which may be a bayonet joint, in the second part 32, the fixing rod 33 being movable. Wherein, the first fixing structure 3 is installed on the supporting frame 1. In some embodiments the fastener is a fixation rod 33, it being understood that the variety of shapes of the fastener need not necessarily be a rod-like structure.

Specifically, as shown in fig. 2, the support frame 1 may be made of a profile for supporting the body 2 and the fixing mechanism 3, etc. Alternatively, the profile of the support frame 1 may be provided with a recess in the surface thereof, in which a nut or a semicircular perforated sliding block may be provided, so that the body 2 and the fixing mechanism or the like may be mounted or fastened to the support frame 1 by means of a screw engaging with the nut or the semicircular perforated sliding block. Furthermore, the repositioning or movement of the body 2 and/or the fixing mechanism 3 etc. can be achieved by re-screwing the screws into nuts or sliding blocks at different positions in the grooves.

According to some embodiments of the present disclosure, as shown in fig. 3, the body 2 may include a driving unit 21, the driving unit 21 being mounted on the support frame 1, the driving unit 21 having an output shaft. The driving unit 21 may be a motor, a hydraulic cylinder, an air cylinder, or the like, alternatively a driving air cylinder using compressed air as a medium. Specifically, the drive unit 21 may output a linear reciprocating motion through an output shaft.

The body 2 may further include a first slide rail 22, and the first slide rail 22 is mounted on the supporting frame 1. The first slide rail 22 is optionally arranged at the central axis of the support frame 1, fastened to the support frame 1 by screws or the like.

As shown in fig. 3 to 4, the body 2 may further include a loading unit 23, the loading unit 23 is fittingly mounted on the first slide rail 22, for example, the loading unit 23 is fittingly mounted on the first slide rail 22 through a slider 233, and is slidable on the first slide rail 22.

The loading unit 23 includes a follower arm 231 and one or more loading arms 232 fixedly connected to the follower arm 231. The follower arm 231 is a rod-shaped member that is connected to an output shaft of the drive unit 21, so that the follower arm 231 reciprocates the loading unit 23 under the drive of the drive unit 21. Each loading arm 232 is provided at its end portion with a test head 235 for directly contacting the test piece 4, the test head 235 being connected to the loading arm 232 through an open groove 234 provided in the end portion of the loading arm 232, optionally a circular hole provided with an opening. Test head 235 includes nylon block 2351 and force sensor 2352. The nylon block 2351 may be in any suitable shape, such as cylindrical, spherical, rectangular, etc. Force sensor 2352 is used for monitoring the force value applied to the tested piece during the testing process, and force sensor 2352 can be, for example

The piezoelectric type flat cylinder type sensor has a 200N measuring range.

In the exemplary structure shown in fig. 3 to 4, the follower arm 231 is located directly above the first slide rail 22, i.e., arranged at the central axis of the support frame 1, to improve the structural stability of the loading unit 23 during the test. The loading arm 232 is disposed perpendicular to the driven arm 231 and centered at the connection with the driven arm 231. And, the loading unit 23 includes 3 loading arms 232 spaced apart from each other by an equal distance, the loading arms 232 and the driven arms 231 forming a fishbone structure. Loading arm 232 tapers toward the end at a distance from the end, the taper terminating at a distance from the end to reduce overall size.

According to other embodiments of the present disclosure, the body 2 may be of any structure or configuration known in the art, for example, according to the most general implementation, the body 2 may comprise: a drive mechanism, such as an electric motor; the industrial personal computer or the control mechanism controls the rotation of the motor; the transmission mechanism converts the rotary motion of the motor into linear reciprocating motion, and a test piece is loaded through a loading rod or a test rod arranged on an output shaft of the transmission mechanism; the end of the loading rod may additionally be provided with a force sensor to record the loading curve and display it on the control cabinet screen. The exemplary mechanism of the body 2 shown in fig. 3 to 4 has the advantages of a small footprint, low cost, and the ability to test multiple test pieces simultaneously.

Further, the exemplary body 2 shown in fig. 3 to 4 may further include: and the second slide rails 24 are respectively arranged at two sides of the first slide rail 22, and the second slide rails 24 are arranged in parallel with the first slide rail 22. The second slide rail 24 is mounted on the support frame 1 by screws or the like, and can support the first fixing structure 3 vertically.

According to some embodiments of the present disclosure, as shown in fig. 5 to 6, the first fixing structure comprises a first part 31 and a second part 32, said second part 32 being rotationally fixed to said first part 31.

In one embodiment, the second fixing structure includes a first bolt and a first fixing hole, the first fixing hole is disposed on the first component, and the first bolt passes through the first fixing hole and abuts against the second slide rail 24, so that the first component is fixed on the second slide rail 24 and does not move any more. When the first component needs to be moved, the first bolt can be loosened, then the first component can be moved along the second slide rail 24, and after the first component reaches the target position, the first component is fixed on the second slide rail 24 through the matching of the first bolt and the second slide rail 24, so that the first component does not move any more. Optionally, a plurality of second fixing holes are formed in the second slide rail 24, and the second fixing holes are matched with the first bolts. The user can fix by passing the first bolt through the second fixing hole. The setting of second fixed orifices can be realized through the foraminiferous sliding block of embedded nut or semicircle, because the implementation is diversified, this disclosure does not do specific restriction.

Also, in some embodiments, the second fixing structure includes a first bolt and a first fixing hole, the first fixing hole is disposed on the first component, and the first bolt passes through the first fixing hole and abuts on the support frame 1, so that the first component is fixed on the support frame 1 and does not move any more. Optionally, a plurality of second fixing holes are formed in the support frame 1, and the second fixing holes are matched with the first bolts. The user can fix by passing the first bolt through the second fixing hole. The setting of second fixed orifices can be realized through the foraminiferous sliding block of embedded nut or semicircle, because the implementation is diversified, this disclosure does not do specific restriction.

In some embodiments, the first part 31 comprises a first assembly 311 and a second assembly 312, the lateral slider 313 being arranged on the second assembly 312. The lateral sliding block is matched and arranged on the second sliding rail 24. When the position of the first fixing structure 3 on the support frame 1 is adjusted, the first fixing structure can slide on the second slide rail 24, which is beneficial to realizing accurate adjustment and reducing workload.

The first assembly 311 is mounted on the support frame 1 through a second fixing structure, the second assembly 312 is slidably mounted on the second slide rail 24, a position adjusting structure is arranged between the first assembly 311 and the second assembly 312, the position adjusting structure is used for adjusting the relative position of the first assembly 311 and the second assembly 312, and the second component 32 is rotatably fixed on the first assembly 312. Specifically, the position adjustment structure includes a projection provided on the second member 312, and a notch provided on the first member 311. The indentation is adapted to receive a projection, a threaded hole (not shown) is provided in the side wall on either side of the indentation, a corresponding threaded hole (not shown) is also provided in the projection, and the second component 312 is connected to the first component 311 by screws provided in the side wall on either side of the indentation that are screwed into the threaded holes in the projection. The position of the first member 312 relative to the first member 311 is adjusted by adjusting the left and right thread depth of the two screws screwed into the bosses of the first member 312, and the position of the test piece relative to the loading unit is finely adjusted after the first member 311 has been mounted and fixed to the support frame 1.

The surface of the first member 312 is provided with a circular protrusion 36. The second part 32 is in the form of an arcuate piece, i.e. comprising an upper section 32a provided with an open slot 35 (optionally open as a circular hole), and a lower section comprising a vertical wall 32b and a horizontal wall 32c perpendicular to each other, the vertical wall 32b being connected to the upper section 32a at an end remote from the horizontal wall 32c, the plane of the upper section 32a being perpendicular to the planes of the vertical wall 32b and the horizontal wall 32c, respectively. Wherein the second member 32 is rotatably connected to the first assembly 312 through the opening groove 35 sleeved on the circular protrusion 36. Preferably, the slot 35 is fastened by clamping the upper and lower parts of the opening to the circular boss 36 with a screw perpendicular to the opening. Similarly, the open slots 234 provided in the ends of the loading arms 232 may be secured in the same manner. The second component 312 is connected to the lateral slider 313 by means of, for example, screws.

According to some embodiments of the present disclosure, a first through hole 34, optionally a long slot, is provided in the horizontal wall 32c of the second member 31, and the length direction thereof is perpendicular to the loading direction of the test piece, and a fixing rod 33 is installed in the first through hole 34, so that the position of the fixing rod 33 can be adjusted in the length direction thereof. More preferably, the fixing rod 33 is fastened in the first through hole 34 by nuts provided at both ends of the horizontal wall 32c, and thus the movement of the fixing rod 33 in the second member 32 can be achieved.

In the above aspect, the moving direction of the first member with respect to the body is a first direction, and the first direction is a front-rear extending direction; the rotating direction of the second component relative to the first component is a second direction, the moving direction of the fixing component relative to the second component is a third direction, and the first direction, the second direction and the third direction are different or opposite in pairs. More specifically, the rotation axis of the second direction is perpendicular to the first direction and the third direction. The user can adjust the angle and the position relation between the test piece and the body (more accurately, the test head) more rapidly through the adjustment in the first direction, the second direction and the third direction, and the labor capacity of the user is reduced. In addition, the length direction of the first through hole is a fourth direction, and the fourth direction is different from the first direction and the third direction, so that a user can further adjust the position relation between the test piece and the body (the test head) by adjusting the positions of the fixing rod and the test piece in the fourth direction, and higher adjustment freedom degree is provided.

Also disclosed, according to some embodiments of the present disclosure, is a fatigue testing assembly including any of the fatigue testing systems described above, and a test piece secured in the first securing structure.

To sum up, the embodiment of the utility model provides an in the disclosed fatigue test system, with the help of the orientation that can adjust the test piece in a plurality of directions and the first fixed knot structure of position, realized a strong adaptability, the fatigue test system of multiple handle of ability adaptation and test scheme.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The term "communicate" is also to be understood broadly, i.e., may be direct or indirect via an intermediary. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The terms "plurality" and "a plurality" in the present disclosure and appended claims refer to two or more than two unless otherwise specified.

It is apparent that various changes and modifications can be made by those skilled in the art to the disclosed controller box structure without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A fatigue testing system for testing a test piece, comprising a body and one or more first fixing structures for fixing the test piece, characterized in that the first fixing structures comprise:

a first part movably mounted on the body;

2. The fatigue testing system of claim 1, wherein the body comprises:

a support frame;

the driving unit is arranged on the supporting frame;

the first sliding rail is arranged on the supporting frame;

3. A fatigue testing system according to claim 2, wherein a nylon block and/or a force sensor is provided on the test head.

4. A fatigue testing system according to claim 2,

the loading unit comprises a driven arm and one or more loading arms fixedly connected to the driven arm, the test head is detachably mounted at the end part of each loading arm, the driven arm is connected to the driving unit and is arranged on the first slide rail in a sliding mode, and the driven arm drives the loading unit to reciprocate under the driving of the driving unit.

5. The fatigue testing system of claim 2, wherein the body further comprises a second slide rail:

the first component is arranged on the second sliding rail in a sliding mode, a second fixing structure is arranged on the first component, and the first component is fixed on the supporting frame or the second sliding rail through the second fixing structure.

6. The fatigue testing system of claim 5, wherein: the first component comprises a first component and a second component, the first component is fixed on the support frame through a second fixing structure, the second component is slidably mounted on the second sliding rail, a position adjusting structure is arranged between the first component and the second component, the position adjusting structure is used for adjusting the relative position of the first component and the second component, and the second component is rotationally fixed on the first component.

7. The fatigue testing system of claim 1, wherein the direction of movement of the first member relative to the body is a first direction, the direction of rotation of the second member relative to the first member is a second direction, and the direction of movement of the securing member relative to the second member is a third direction, the first, second, and third directions being different or opposite in pairs.

8. The fatigue testing system of claim 7, wherein: the second part is provided with a first through hole, the fixing piece penetrates through the first through hole, a third fixing structure is arranged on the fixing piece, and the third fixing structure is used for fixing the fixing piece on the second part.

9. The fatigue testing system of claim 8, wherein: the first through hole is a long slotted hole, and the length extending direction of the first through hole is different from or opposite to the first direction, the second direction and the third direction.

10. A fatigue testing assembly comprising a fatigue testing system according to any of claims 1 to 9, and a test piece secured in the first securing structure.