CN108152032B - Lock catch fatigue testing machine - Google Patents
Lock catch fatigue testing machine Download PDFInfo
- Publication number
- CN108152032B CN108152032B CN201810230621.7A CN201810230621A CN108152032B CN 108152032 B CN108152032 B CN 108152032B CN 201810230621 A CN201810230621 A CN 201810230621A CN 108152032 B CN108152032 B CN 108152032B
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- rotating shaft
- frame
- motor
- lock catch
- clamp
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 22
- 238000010304 firing Methods 0.000 claims abstract description 14
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a lock catch fatigue testing machine, which comprises: a rotation shaft unit; the bottom end of the frame is fixedly arranged on the rotating shaft, and a clamp for fixing the lock catch is arranged on the frame; the unlocking unit comprises a second motor, a supporting plate and a shifting lever, wherein the second motor is arranged at the top of the frame, the shifting lever comprises a connecting part and a shifting head, and the bottom end of the shifting head is downwards arranged corresponding to the clamp; the locking unit is arranged on one side of the rotating shaft and comprises a firing pin for performing impact locking on the lock catch on the clamp, and the firing pin and the clamp are correspondingly arranged. The lock catch fatigue testing machine provided by the invention has the advantages that the lock catch is driven to swing by the frame to swing around the rotating shaft, the lock catch is closed-unlocked once, the lock catch automatic fatigue detection is realized through the testing machine, in the experimental process, the locking speed, the unlocking moment and the circulation times are monitored in real time, the structure of the testing machine is stable and reliable, the production cost is lower, and the good testing efficiency and precision are ensured.
Description
Technical Field
The invention belongs to the field of lock catch fatigue test equipment, and particularly relates to a lock catch fatigue test machine.
Background
After automobile accessories such as seat locks are produced, fatigue tests need to be carried out on the automobile seat locks, namely, the cycle action times and unlocking torque when the locks are damaged due to fatigue are obtained through unlocking and locking experiments for a plurality of times at a set speed, so that whether the strength of the locks meets the design requirements is checked, and therefore, how to conveniently and rapidly carry out the fatigue tests on the locks is a new research and development subject for the technicians in the field.
Disclosure of Invention
Therefore, the invention aims to provide a lock catch fatigue testing machine which meets the lock catch fatigue test requirement of an automobile seat.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
A latch fatigue testing machine, comprising:
the rotating shaft unit comprises a rotating shaft which is horizontally arranged, and a first motor which controls the rotating shaft to rotate, and the rotating shaft is arranged on the supporting seat;
the bottom end of the frame is fixedly arranged on the rotating shaft, the frame is driven to rotate through the rotating shaft, and a clamp for fixing the lock catch is arranged on the frame;
the unlocking unit comprises a second motor, a supporting plate and a poking rod, wherein the second motor is arranged at the top of the frame, the main shaft of the second motor is parallel to the rotating shaft, the bottom of the supporting plate is arranged on the main shaft of the second motor, a torque sensor is arranged between the supporting plate and the main shaft of the second motor, the poking rod comprises a connecting part and a poking head part, the connecting part is arranged at the top of the supporting plate, and the bottom end of the poking head part is downwards arranged corresponding to the clamp;
The locking unit is arranged on one side of the rotating shaft and comprises a firing pin for performing impact locking on the lock catch on the clamp, the firing pin is arranged on the bracket, and the firing pin and the clamp are correspondingly arranged.
Further, a clutch is arranged between the first motor and the rotating shaft;
The frame is provided with a push plate, the outer side of the rotating shaft is provided with a pushing element for resetting the frame, the resetting element and the locking unit are positioned on the same side of the rotating shaft, the pushing element is an air cylinder, a hydraulic cylinder or an electric push rod, and the push rod is opposite to the push plate.
Further, the testing machine also comprises a buffering limiting unit which comprises supporting frames respectively arranged at two sides of the rotating shaft and first collision blocks arranged on each supporting frame, wherein second collision blocks corresponding to the first collision blocks are arranged on the frames.
Further, the frame comprises two upright plates which are arranged oppositely, the upper parts of the two upright plates are connected with top plates, the bottoms of the two upright plates are connected with bottom plates, the bottom end of each upright plate extends out of the bottom plate, and each upright plate is fixedly arranged on the rotating shaft through the extending end; the clamp is mounted on one of the risers.
Further, the rotating shaft is a hollow shaft.
Further, a speed measuring sensor is arranged at the outer end of the rotating shaft.
Further, the first motor and the second motor are servo motors respectively.
Compared with the prior art, the lock catch fatigue testing machine has the following advantages:
According to the lock catch fatigue testing machine, the frame swings around the rotating shaft to drive the lock catch to swing, the lock catch is closed through the firing pin of the locking unit once in swinging, the lock catch is opened through the unlocking unit, automatic fatigue detection of the lock catch is achieved through the testing machine, in the experimental process, the locking speed, the unlocking moment and the circulation times are monitored in real time, the testing machine is stable and reliable in structure, low in production cost and good in testing efficiency and precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic perspective view of the latch fatigue tester;
FIG. 2 is a left side view of the present latch fatigue tester;
FIG. 3 is a top view of the present latch fatigue tester;
FIG. 4 is a front view of the unlocking unit of the lock catch fatigue testing machine;
FIG. 5 is a left side view of the unlocking unit of the lock catch fatigue testing machine;
FIG. 6 is a perspective view of the frame of the latch fatigue tester;
FIG. 7 is an enlarged view of FIG. 1A
Reference numerals illustrate:
1-a workbench; 2-a spindle unit; 21-a support;
2-rotating shaft; a 23-clutch; 3-supporting frames;
31-a first bump; 4-a display; 5-frame;
51-a vertical plate; 52-top plate; 53-a bottom plate;
54-a clamp; 55-a second bump; 57-push plate;
6-pushing element; 7-unlocking unit; 71-a base;
72-a second motor; 73-a torque sensor; 74-supporting plates;
75-deflector rod; 751-connecting part; 752-a dial portion;
8-firing pin; 9-bracket.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1-7, the lock catch fatigue testing machine comprises a workbench 1, a rotating shaft unit 2, a frame 5, an unlocking unit 7 and a display 4, wherein the rotating shaft unit 2 comprises a horizontally arranged rotating shaft 22, the rotating shaft 22 is rotatably arranged on a support 21, the support 21 is fixed on the workbench 1, the rotating shaft 22 is controlled to rotate by a first motor 24, and a speed measuring sensor is arranged at the outer end of the rotating shaft 22; the frame 5 comprises two upright plates 51 which are arranged oppositely, the upper parts of the two upright plates 51 are connected with top plates 52, the bottoms of the two upright plates 51 are connected with bottom plates 53, the top plates 52, the bottom plates 53 and the two upright plates 51 form a square frame structure, the bottom end of each upright plate 51 extends out of the bottom plate 53, each upright plate 51 is fixedly arranged on the rotating shaft 22 through the extending end, the rotating shaft 22 drives the frame 5 to swing around the central axis of the rotating shaft when rotating, and the clamp 54 is arranged on one upright plate 51 in the two upright plates 51 during fatigue test and is used for fixing the lock catch on the frame 5, and the frame 5 swings to drive the clamp 54 to swing so as to drive the lock catch to swing, so that the lock catch is closed- - -an unlocking cycle test mode is realized; the unlocking unit 7 comprises a second motor 72, a supporting plate 74 and a deflector rod 75, in this implementation, the first motor 24 and the second motor 72 are respectively servo motors, the second motor 72 is installed on the top plate 52, the main shaft of the second motor is parallel to the rotating shaft 22, the bottom of the supporting plate 74 is installed on the main shaft of the second motor 72, a torque sensor 73 is arranged between the main shafts of the supporting plate 74 and the second motor 72, torque required by unlocking is detected through the torque sensor 73, the torque sensor 73 is connected with a controller, the controller collects the monitored values, then the signals are input to a display for numerical display, the deflector rod 75 comprises a connecting part 751 and a deflector head 752, the connecting part 751 is installed at the top of the supporting plate 74, the bottom end of the deflector head 752 is downward and is correspondingly arranged with the clamp 54, the deflector rod is driven by the second motor 72 to rotate, the deflector head of the deflector rod opens the clamp in the rotating process, and the unlocking torque is detected through the torque sensor; the locking unit is arranged on one side of the rotating shaft 22 and comprises a firing pin 8 for carrying out impact locking on the lock catch on the clamp 54, the firing pin 8 is arranged on the bracket 9 on the workbench 1, and the firing pin 8 and the clamp 54 are correspondingly arranged. The principle of the testing machine is that the lock catch to be tested is fixed on the fixture 54, for example, in the embodiment, taking the lock closing unit arranged at the left side of the rotating shaft 22 as an example, when the test starts, the rotating shaft 22 rotates left or anticlockwise by an angle, the rotating shaft drives the frame 5 to swing left by an angle, the frame 5 simultaneously drives the lock catch and the unlocking unit to swing left by the same angle, when the lock catch on the fixture 54 is impacted by the firing pin 8, the lock catch is impacted and locked, the frame 5 stops swinging, the second motor 7 of the unlocking unit rotates right or clockwise by an angle, and drives the shifting lever to rotate clockwise, and the unlocking part of the shifting part and the lock catch are correspondingly arranged, so that the unlocking part is pulled open in the moving process of the shifting part, the lock catch is opened, and at the moment and the rotating shaft rotating speed during the impact are respectively recorded and displayed by the display 4; after the locking-unlocking actions are completed, the frame returns to the initial state and is ready for the next cycle test.
In this implementation, since the test is a high-frequency test, in order to prevent damage to the first motor and prolong the service life of the first motor 24, a clutch 23 is disposed between the first motor 24 and the rotating shaft 22, and the first motor 24 rotates the frame to the left in the vertical plane position of the central axis of the rotating shaft 22, so that the first motor is stopped, and the frame 4 automatically continues to swing leftwards until striking the striker 8; for the return of the frame 5, a push plate 57 is arranged at the upper part of one vertical plate 51 of the frame 5, a pushing element 6 for resetting the frame 5 is arranged at the outer side of the rotating shaft 22, the resetting element 6 and the locking unit are positioned at the same side of the rotating shaft 22, and the pushing element is an air cylinder, a hydraulic cylinder or an electric push rod, and the push rod is arranged opposite to the push plate 57. After one test is completed, the frame 5 is pushed back to the initial working state by the pushing element.
In this embodiment, the testing machine further includes a buffering and limiting unit, which includes a supporting frame 3 respectively disposed at the left and right sides of the rotating shaft 22, and a first collision block 31 mounted on each supporting frame 3, where the supporting frame 3 is disposed on the workbench, and two second collision blocks 55 are disposed on the frame 5, and the second collision blocks 31 and the first collision blocks 55 are respectively disposed correspondingly; that is, when the rotating shaft rotates counterclockwise, the first bump 31 on the left side of the rotating shaft 2 and the second bump 55 corresponding to the first bump on the left side limit the position of the frame 5 when swinging leftwards, and similarly, the first bump on the right side of the rotating shaft 22 and the second bump corresponding to the first bump on the right side limit the position of swinging rightwards of the frame 5, thereby ensuring that the frame 2 swings within a certain angle range.
In this embodiment, the rotating shaft 22 is a hollow shaft.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a hasp fatigue test machine which characterized in that: comprising the following steps:
the rotating shaft unit (2) comprises a rotating shaft (22) which is horizontally arranged and a first motor (24) which controls the rotating shaft (22) to rotate, and the rotating shaft (22) is arranged on the supporting seat (21);
the bottom end of the frame (5) is fixedly arranged on the rotating shaft (22), the frame (5) is driven to rotate by the rotating shaft (22), and a clamp (54) for fixing the lock catch is arranged on the frame (5);
The unlocking unit (7) comprises a second motor (72), a supporting plate (74) and a shifting rod (75), wherein the second motor (72) is arranged at the top of the frame (5), the main shaft of the second motor is parallel to the rotating shaft (22), the bottom of the supporting plate (74) is arranged on the main shaft of the second motor, a moment sensor (73) is arranged between the supporting plate (74) and the main shaft of the second motor, the shifting rod (75) comprises a connecting part (751) and a shifting head (752), the connecting part (751) is arranged at the top of the supporting plate (74), and the bottom end of the shifting head (752) is downwards arranged corresponding to the clamp (54);
The locking unit is arranged at one side of the rotating shaft (22) and comprises a firing pin (8) for performing impact locking on a lock catch on the clamp (54), the firing pin (8) is arranged on the bracket (9), the firing pin (8) and the clamp (54) are correspondingly arranged,
The support (9) is arranged above the support frame (3) of the buffer limiting unit;
The frame comprises two upright plates (51) which are arranged oppositely, the upper parts of the two upright plates (51) are connected with top plates (52), the bottoms of the two upright plates (51) are connected with bottom plates (53), the bottom end of each upright plate (51) extends out of the bottom plate (53), and each upright plate (51) is fixedly arranged on the rotating shaft (22) through the extending end; the clamp (54) is arranged on one of the vertical plates (51); the first motor (24) and the second motor (72) are servo motors respectively.
2. The latch fatigue testing machine according to claim 1, wherein: a clutch (23) is arranged between the first motor (24) and the rotating shaft (22);
The frame (5) is provided with a push plate (57), the outer side of the rotating shaft (22) is provided with a push element (6) for resetting the frame (5), the reset element and the locking unit are positioned on the same side of the rotating shaft (22), the push element is an air cylinder, a hydraulic cylinder or an electric push rod, and the push rod is opposite to the push plate (57).
3. The latch fatigue testing machine according to claim 1, wherein: the buffering and limiting unit comprises supporting frames (3) which are respectively arranged on two sides of the rotating shaft (22), and first collision blocks (31) which are arranged on each supporting frame (3), and second collision blocks (55) which are respectively corresponding to the first collision blocks (31) are arranged on the frame (5).
4. The latch fatigue testing machine according to claim 1, wherein: the rotating shaft (22) is a hollow shaft.
5. The latch fatigue testing machine according to claim 1, wherein: the outer end of the rotating shaft (22) is provided with a speed measuring sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230621.7A CN108152032B (en) | 2018-03-20 | 2018-03-20 | Lock catch fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230621.7A CN108152032B (en) | 2018-03-20 | 2018-03-20 | Lock catch fatigue testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108152032A CN108152032A (en) | 2018-06-12 |
| CN108152032B true CN108152032B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230621.7A Active CN108152032B (en) | 2018-03-20 | 2018-03-20 | Lock catch fatigue testing machine |
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| Country | Link |
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| CN (1) | CN108152032B (en) |
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| CN113125336B (en) * | 2021-04-25 | 2022-08-09 | 赵岚 | Zither artificial nail testing device |
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| CN108152032A (en) | 2018-06-12 |
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