CN105675290B - For the detecting tool of automobile control arm ball pin fatigue test - Google Patents

Abstract

The invention discloses the detecting tool for automobile control arm ball pin fatigue test, including top plate, two side plates, support plate and three driving units；To form " L " shape skeleton, top plate is from top to bottom arranged in parallel in the turning of " L " shape skeleton, and top plate, support plate are perpendicular with side plate two side plate vertical connections successively with support plate；The middle part of top plate is equipped with pilot hole, and mounting hole is provided in the middle part of support plate；It is provided on the outer wall of side plate and slides " u "-shaped fork, and two of which driving unit can be connected with sliding " u "-shaped fork respectively；Automobile control arm ball pin can be fixed in mounting hole；In three driving units, one of driving unit can run through pilot hole to give automobile control arm ball pin loading force in vertical direction, and another two driving unit can give automobile control arm ball pin loading force in the horizontal direction by sliding " u "-shaped fork.The detecting tool can carry out fatigue test detection to automobile control arm ball pin simultaneously.

Description

Inspection tooling for fatigue test of automobile control arm ball pin

technical field

The invention relates to a detection tool, in particular to a detection tool for the fatigue test of a ball pin of an automobile control arm.

Background technique

The ball pin control arm is an important part of the car, mainly used to connect and transmit force and torque. After the ball pin control arm is produced, performance testing is required. It is necessary to imitate the force test of the product in the loaded state. Only after passing the test can it be put into the assembly of the car, otherwise the car will pose a safety hazard; especially the quality of the ball pin needs to be tested.

During the detection process of the ball pin, it is necessary to implement loading force or displacement in three mutually perpendicular directions for detection, and it is best to observe whether the ball pin is damaged. If there is no damage, it means that the ball pin is qualified. At present, the fatigue test of the ball pin of the automobile control arm is tested in three directions, which leads to three steps for the detection of each ball pin, which makes the detection efficiency low and difficult to meet the production needs.

Contents of the invention

The object of the present invention is to provide a detection tool for the fatigue test of the ball pin of the automobile control arm. The detection tool can simultaneously perform fatigue test detection on the ball pin of the control arm of the automobile.

In order to achieve the above object, the present invention provides a kind of detection tool for automobile control arm ball pin fatigue test, detection tool comprises top plate, two side plates, support plate and three driving units; two side plates are vertically connected to form "L"-shaped frame, the top plate and the support plate are arranged in parallel in the corner of the "L"-shaped frame from top to bottom, and the top plate and the support plate are perpendicular to the side plates; there is a guide hole in the middle of the top plate, and the support plate There is a mounting hole in the middle; a sliding "U"-shaped fork is provided on the outer wall of the side plate, and two of the drive units can be connected to the sliding "U"-shaped fork respectively;

Among them, the ball pin of the automobile control arm can be fixed in the installation hole; among the three drive units, one of the drive units can pass through the guide hole to give a load force to the ball pin of the automobile control arm in the vertical direction, and the other two drive units can By sliding the "U" shaped fork to load the car control arm ball pin in the horizontal direction.

Preferably, two corner plates are arranged on the outer wall of the side plate, and a mounting groove is formed between the two corner plates; wherein, the sliding "U"-shaped fork can slide in the mounting groove along the vertical direction, and pass through the fixing piece fixed in the installation groove.

Preferably, through-holes are provided on both sides of the sliding "U"-shaped fork, and the drive unit is an oil cylinder; and the piston rod of the oil cylinder is fixed in the through-hole by bolts.

Preferably, a threaded taper sleeve is arranged in the mounting hole, and the tapered section of the ball pin of the automobile control arm is fixed in the threaded taper sleeve.

Preferably, the outer sleeve of the threaded taper sleeve is provided with a taper sleeve lock nut.

Preferably, the top of the ball pin of the automobile control arm is higher than the top of the threaded taper sleeve, and the top of the ball pin of the automobile control arm is sleeved with a ball pin self-locking nut.

Preferably, the ball part of the automobile control arm ball pin is covered with a fastening clip.

According to the above technical solution, the detection tool provided by the present invention includes a top plate, two side plates, a support plate and three drive units. It is only necessary to fix the ball pin of the automobile control arm in the mounting hole, and then pass through the guide hole through a drive unit to Loading force is applied to the ball pin of the control arm of the vehicle in the vertical direction, and the other two drive units connected with the sliding "U" shaped fork can load the ball pin of the control arm of the vehicle in the horizontal direction. Thus, the simultaneous fatigue detection of the ball pins of the control arm of the automobile in three two-by-two perpendicular directions can be realized at the same time. Compared with the detection method in the prior art, the detection tool provided by the present invention can save resources, reduce cost and energy consumption, reduce test cycle, improve test accuracy and quality, and improve test efficiency, which is in line with the current sustainable development strategy.

Other features and advantages of the present invention will be described in detail in the following detailed description.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is the structural representation of the detection tooling that is used for automobile control arm ball pin fatigue test provided by the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is an assembly diagram of the detection tool shown in Fig. 1 .

Explanation of reference signs

1. Side panel 2. Top panel

3. Support plate 4. Guide hole

5. Mounting hole 6. Sliding "U" shaped fork

7. Corner plate 8. Fixing piece

9. Threaded taper sleeve 10. Taper sleeve lock nut

11. Ball pin self-locking nut 12. Automobile control arm ball pin

13. Fastening fixture

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

In the present invention, in the absence of a contrary description, "inner, outer," and other orientation words included in the term only represent the orientation of the term in the normal use state, or the common name understood by those skilled in the art, should not be construed as a limitation of this term.

The present invention provides a kind of detection tooling that is used for the fatigue test of automobile control arm ball pin, as shown in Fig. Plates 1 are vertically connected to form an "L"-shaped frame, and the top plate 2 and support plate 3 are arranged in parallel in the corners of the "L"-shaped frame from top to bottom, and the top plate 2 and support plate 3 are perpendicular to the side plate 1; The middle part of the top plate 2 is provided with a guide hole 4, and the middle part of the support plate 3 is provided with a mounting hole 5; the outer wall of the side plate 1 is provided with a sliding "U"-shaped fork 6, and two of the drive units can be respectively connected with the sliding "U" Shaped forks 6 are connected;

Wherein, the automobile control arm ball pin 12 can be fixed in the mounting hole 5; among the three drive units, one of the drive units can pass through the guide hole 4 to give the automobile control arm ball pin 12 a loading force in the vertical direction, and the other two A driving unit can give a loading force to the automobile control arm ball pin 12 in the horizontal direction by sliding the “U” shaped fork 6 .

The above-mentioned detection tooling includes a top plate 2, two side plates 1, a support plate 3 and three drive units. It is only necessary to fix the ball pin 12 of the automobile control arm in the installation hole 5, and then pass through the guide hole 4 through a drive unit to The vertical direction loads the ball pin 12 of the automobile control arm, and the other two driving units connected with the sliding "U" shape fork 6 can give the ball pin 12 of the automobile control arm a load force in the horizontal direction. In this way, the synchronous fatigue detection of the automobile control arm ball pin 12 in three two-by-two perpendicular directions can be realized at the same time. Compared with the detection method in the prior art, the detection tool provided by the present invention can save resources, reduce cost and energy consumption, reduce test cycle, improve test accuracy and quality, and improve test efficiency, which is in line with the current sustainable development strategy.

In the present invention, the position of the sliding "U"-shaped fork can be set at a fixed position, and of course it can also be set movable. 1 is provided with two angled plates 7 on the outer wall, and a mounting groove is formed between the two angled plates 7; wherein, the sliding "U"-shaped fork can slide in the mounting groove along the vertical direction, and is fixed by a fixing piece 8 in the mounting slot. In this way, the position of the sliding "U"-shaped fork can be slid so that the position of the sliding "U"-shaped fork and the center of the ball are on the same horizontal line. Only when the two are on the same horizontal plane can the accuracy of fatigue detection be further ensured.

In the above embodiment, the specific connection method of the sliding "U" shaped fork and the drive unit can be any connection method in the art, which can be a fixed connection (such as welding) or a flexible connection (such as hinged joint). For installation and disassembly between the two, preferably, through holes are provided on both sides of the sliding "U"-shaped fork, and the drive unit is an oil cylinder; and the piston rod of the oil cylinder is fixed in the through hole by bolts.

In addition, in order to ensure the stability of the automobile control arm ball pin 12 during the detection process, preferably, a threaded taper sleeve 9 is arranged in the installation hole 5 , and the tapered section of the automobile control arm ball pin 12 is fixed in the threaded taper sleeve 9 . In this way, the ball pin 12 of the automobile control arm can be stably fixed in the detection tooling by utilizing the threaded taper sleeve 9, so as to prevent the ball pin 12 of the automobile control arm from shaking in the mounting hole 5 and causing damage to itself.

On the basis of the above-mentioned threaded taper sleeve 9, in order to improve the stability of the connection between the threaded taper sleeve 9 and the support plate 3, preferably, the outer sleeve of the threaded taper sleeve 9 is provided with a taper sleeve lock nut 10, which can also The shaking of the threaded taper sleeve 9 during the tooling inspection process is prevented, and the accuracy and precision of the inspection results are further improved.

Of course, the degree of cooperation between the automobile control arm ball pin 12 and the threaded taper sleeve 9 can also affect the accuracy of the detection structure. In order to further improve the accuracy, preferably, the top of the automobile control arm ball pin 12 is higher than the threaded taper sleeve 9 and the top of the automobile control arm ball pin 12 is sleeved with a ball pin self-locking nut 11 .

On the basis of the above content, the center of gravity of the automobile control arm ball pin 12 is lowered to improve the stability of the automobile control arm ball pin 12 . Preferably, the ball part of the automobile control arm ball pin 12 is covered with a fastening fixture 13 . Of course, the fastening fixture 13 can not only lower the center of gravity of the automobile control arm ball pin 12, but also provide fastening force.

The preferred embodiment of the present invention has been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the specific details of the above embodiment, within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way if there is no contradiction. The combination method will not be described separately.

In addition, various combinations of different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (7)

1. a kind of detecting tool for automobile control arm ball pin fatigue test, which is characterized in that the detecting tool includes top Plate (2), two side plates (1), support plate (3) and three driving units；Described two side plate (1) vertical connections are to form " L " shape Skeleton, the top plate (2) is from top to bottom arranged in parallel in support plate (3) successively in the turning of described " L " shape skeleton, and institute It is perpendicular with the side plate (1) to state top plate (2), support plate (3)；Pilot hole (4), institute are provided in the middle part of the top plate (2) It states and mounting hole (5) is provided in the middle part of support plate (3)；It is provided on the outer wall of the side plate (1) and slides " u "-shaped fork (6), and Driving unit described in two of which can be connected with the slip " u "-shaped fork (6) respectively；

Wherein, automobile control arm ball pin (12) can be fixed in the mounting hole (5)；In three driving units, In driving unit can run through the pilot hole (4) to give the automobile control arm ball pin (12) in vertical direction Loading force, driving unit described in another two can give the automobile in the horizontal direction by the slip " u "-shaped fork (6) Control arm ball pin (12) loading force；In the fatigue test detection process of the automobile control arm ball pin (12), " u "-shaped fork (6) With the position of the centre of sphere of automobile control arm ball pin (12) in the same horizontal line.

2. detecting tool according to claim 1, which is characterized in that there are two angles for setting on the outer wall of the side plate (1) Plate (7) is formed with mounting groove between described two gussets (7)；Wherein, the slip " u "-shaped fork can exist along vertical direction It is slided in the mounting groove, and passes through fixing piece (8) and be fixed in the mounting groove.

3. detecting tool according to claim 2, which is characterized in that the both sides for sliding " u "-shaped fork are provided through Hole, the driving unit are oil cylinder；And the piston rod of the oil cylinder is secured by bolts in the through hole.

4. according to the detecting tool described in any one in claim 1-3, which is characterized in that set in the mounting hole (5) There is screw thread tapered sleeve (9), the tapered section of the automobile control arm ball pin is fixed in the screw thread tapered sleeve (9).

5. detecting tool according to claim 4, which is characterized in that the outer cover of the screw thread tapered sleeve (9) is equipped with tapered sleeve Locking nut (10).

6. detecting tool according to claim 5, which is characterized in that the top of the automobile control arm ball pin (12) is higher than The top of the screw thread tapered sleeve (9), and ball pin self-locking nut (11) is arranged at the top of the automobile control arm ball pin (12).

7. detecting tool according to claim 5 or 6, which is characterized in that the bulb of the automobile control arm ball pin (12) It is arranged with fastening clips (13).