A Ball Pin Impact Resistance Testing Device and Method for Mechanical Structure Components

Abstract

The present invention discloses an impact resistance test device and method for a ball pin of a mechanical structure component, relating to the technical field of impact tests of structure components. An impact resistance test device for a ball pin of a mechanical structure component includes a rotatable turntable, and also includes: multiple groups of symmetric columns for clamping the side plate mounting holes at both ends of the component; a first cam horizontally and transversely moved and connected to a damping member. By providing a marking member, the present invention can mark different positions of the component, making the test results visualizable. Thus, when inspecting the component after the test, it is possible to more quickly and intuitively understand the bending degree of the component during the test. Moreover, the method of applying an impact load to the component by using the first cam is safer and more efficient than the existing methods, and the frequency of application is also relatively higher. Therefore, this device can meet the requirements of production enterprises with batch testing requirements, and the use of electrified structures is less, reducing the failure frequency of electrified structures.

Description

Technical Field

[0001] The present invention belongs to the technical field of impact testing of structural components. Specifically, it relates to a ball pin impact resistance testing device for mechanical structural components. Background Art

[0002] During the production and processing of ball pins, in order to improve the strength and quality of their components, it is necessary to conduct impact tests on them, so as to detect the test performance of the ball pins in the impact simulation test under this batch, and to control the quality of the production process.

[0003] Most of the existing impact tests adopt methods such as pneumatic, hydraulic, free-fall impact, and spring impact. However, the above test methods all have certain safety problems, such as the bursting of pneumatic and hydraulic pipelines, the ejection of media leading to safety problems, the loosening and breaking of ropes during the free fall of heavy objects, and the fatigue fracture of springs during high-frequency testing. At the same time, the existing test equipment has the problem that the test results are difficult to visualize, resulting in difficulty in quickly and accurately understanding the condition of the ball pins after batch impact tests. Therefore, a ball pin impact resistance testing device is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a ball pin impact resistance testing device for mechanical structural components that can overcome or at least partially solve the above problems.

[0005] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is: a ball pin impact resistance testing device for mechanical structural components, including a rotatable turntable, and further including: multiple groups of symmetric columns for clamping the side plate mounting holes at both ends of the component; a first cam that is horizontally translated and connected to a damping member; a marking member that is horizontally translated synchronously with the first cam and is symmetrically arranged; when testing, the first cam and the marking member respectively move above the component and at both ends below the circular middle section of the component, the first cam applies an impact load to the component, and the marking member reciprocates horizontally; a blanking mechanism for blanking the tested components.

[0006] Preferably, it further includes a horizontally translated connecting frame, the damping members are symmetrically installed on the connecting frame, the end of the damping member is rotatably connected to a first rotating shaft, and the first cam is installed on the first rotating shaft and is driven by a motor to rotate the first rotating shaft.

[0007] Preferably, a multi-faceted rod is symmetrically and slidably connected to the connecting frame, the marking member is installed at the front end of the multi-faceted rod, and the multi-faceted rod is connected to the connecting frame through a first tension spring; it further includes a rotating second cam for driving the multi-faceted rod to reciprocate horizontally.

[0008] Preferably, a sliding carriage is slidably connected to the connecting frame, a second rotating shaft is rotatably connected to the sliding carriage, the second cam is mounted on the second rotating shaft, the first rotating shaft is rotatably connected to the sliding carriage, and the first rotating shaft and the second rotating shaft are in transmission connection.

[0009] Preferably, it further includes a bearing platform, the turntable is rotatably connected to the bearing platform, an installation frame is mounted on the bearing platform, a driving member is mounted on the installation frame, the execution end of the driving member is connected to the connecting frame, and the connecting frame is slidably connected to the installation frame.

[0010] Further, a plurality of sliding grooves are circumferentially formed on the turntable, and an inclined block is slidably arranged in each sliding groove through a second spring. A positioning block is fixedly connected to the column. Before the test, the inclined block is located between the two columns, and the middle circular section of the component is supported by the upper surface of the inclined block, so that the component is sleeved on the upper section of the column; during the test, the inclined block is separated from the component, so that the component moves down to a preset impact height on the positioning block.

[0011] Further, sliding rods are installed on both sides of the inclined block, the second spring is sleeved on the sliding rod, and one end is connected to the inclined block and the other end is connected to the mounting block on the turntable. The mounting block is slidably connected to the turntable through a guide rod, and a push rod is connected to the connecting frame, and the push rod corresponds to the inclined block.

[0012] Further, a rectangular rod is fixedly connected to the bottom surface of the inclined block, the rectangular rod is slidably connected in the sliding groove, a slider is slidably connected to the bottom surface of the turntable between the rectangular rod and the end of the rectangular rod, and a first spring is sleeved between the slider and the end of the rectangular rod.

[0013] Further, it further includes a first cylinder and a second cylinder. The first cylinder and the second cylinder are respectively located below the turntable and correspond to the rectangular rod; it further includes a material guiding plate corresponding to the first cylinder and the second cylinder respectively.

[0014] A method for testing the impact resistance of a ball pin of a mechanical structure component includes the following steps:

[0015] S1. Clamp the component on the column, and the turntable brings the component to the position opposite to the first cam;

[0016] S2. The connecting frame drives the first cam and the marking member to approach the component. After reaching the preset position, the first rotating shaft drives the first cam to rotate to apply an impact load to the component, and at the same time, the driving linkage drives the marking member to horizontally move horizontally below the component;

[0017] S3. When the component is deformed, the marking member will leave an imprint on the outer periphery of the component. When the component is not deformed, the marking member does not contact the outer periphery of the component;

[0018] S4. After the test, the turntable drives the component to move to the first cylinder or the second cylinder for blanking, completing the test process.

[0019] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: By setting the marking parts, the present invention can mark different positions of the components, making the test results visual. Thus, when inspecting the components after the test, it is possible to more quickly and intuitively understand the bending degree of the components during the test. Moreover, by using the cam to apply impact load to the components, compared with the methods in the prior art, it is safer and more efficient, and the frequency of application is relatively higher. Therefore, this device can meet the production enterprises with batch testing requirements, and the use of electrified structures is less, reducing the failure frequency of electrified structures.

[0020] The designed inclined block of this device can not only accelerate the clamping speed of the components when clamping the components, but also cooperate with the connecting frame during the test, enabling the components to automatically slide to the preset impact height, avoiding incorrect test results caused by the components not reaching the preset impact height due to manual or manipulator placement. Moreover, when blanking the components, it can rely on the inclined block to automatically lift the components and slide down by itself according to the designed shape of the inclined block to complete blanking.

[0021] The sensor set in this device to monitor the position of the first rotating shaft can facilitate the identification of whether the components for impact testing are qualified, further facilitating the judgment of qualified and unqualified components during the test. At the same time, the sensor can also be used to detect whether the first rotating shaft itself is bent, thereby improving the accuracy of the impact test results. Description of the Drawings

[0022] In the drawings:

[0023] Figure 1 is a three-dimensional structure schematic diagram of a ball pin impact resistance test device for mechanical structure components proposed by the present invention Figure 1 ;

[0024] Figure 2 is a three-dimensional structure schematic diagram of a ball pin impact resistance test device for mechanical structure components proposed by the present invention Figure 2 ;

[0025] Figure 3 is a top view of a ball pin impact resistance test device for mechanical structure components proposed by the present invention;

[0026] Figure 4 is a structural schematic diagram of the inclined block of a ball pin impact resistance test device for mechanical structure components proposed by the present invention;

[0027] Figure 5Schematic diagram of the connecting frame of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0028] Figure 6 Schematic diagram of the rectangular rod and guide rod of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0029] Figure 7 Schematic diagram of the damper, rotating shaft one, and cam one of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0030] Figure 8 Schematic diagram of the column and positioning block of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0031] Figure 9 Schematic diagram of the mounting frame of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0032] Figure 10 Schematic diagram of the multi-faceted rod and marking piece of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention;

[0033] Figure 11 Schematic diagram of the cam two and rotating shaft two of an impact resistance test device for a ball pin of a mechanical structure component proposed by the present invention.

[0034] In the figure: 1, bearing platform; 10, column; 101, positioning block; 11, turntable; 12, chute; 121, inclined block; 122, rectangular rod; 123, spring one; 124, slider; 125, spring two; 126, sliding rod; 127, guide rod; 13, component; 131, circular middle section; 132, side plate; 2, mounting frame; 21, connecting frame; 22, damper; 221, rotating shaft one; 222, cam one; 223, sliding frame; 23, driving part; 24, multi-faceted rod; 241, tension spring one; 242, marking piece; 243, rotating shaft two; 244, cam two; 245, tension spring two; 25, ejector rod; 3, cylinder one; 4, cylinder two; 5, guide plate. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] Embodiment 1: Refer to Figures 1-11A ball pin impact resistance testing device for a mechanical structural component comprises a rotatable turntable 11, and also comprises: a plurality of symmetrical groups of columns 10 for clamping the mounting holes of the side plates 132 at both ends of a component 13; a cam 222 which is arranged for horizontal transverse movement and connected to a damping member 22; a marking member 242 which is arranged for horizontal transverse movement synchronously with the cam 222 and is symmetrically arranged, the marking member 242 being a marking pen or a carbide marking pen, wherein the damping member 22 is mounted on a connecting frame 21, and the damping member 22 adopts adjustable damping; when testing, the cam 222 and the marking member 242 are respectively moved to the upper part of the component 13 and the lower part of the circular middle section 131 of the component 13, the cam 222 applies an impact load to the component 13, and the marking member 242 reciprocates for horizontal transverse movement; a material unloading mechanism for unloading the component 13 after the test.

[0037] It also includes a horizontally movable connecting frame 21, a damping member 22 is symmetrically mounted on the connecting frame 21, a distal end of the damping member 22 is rotatably connected to a rotating shaft 221, a cam 222 is mounted on the rotating shaft 221, and the rotating shaft 221 is driven to rotate by a motor, a position sensor is mounted on the connecting frame 21, and the position sensor is opposite to the direction of the outer periphery of the cam 222 away from the turntable 11, and is used to detect the position of the cam 222, thereby facilitating the rotation of the rotating shaft 221 to prevent the outer periphery of the cam 222 from facing the turntable 11, which causes the cam 222 to conflict with the component 13 when the connecting frame 21 approaches the turntable 11;

[0038] A motor for driving the rotating shaft 221 to rotate is installed on the connecting frame 21.

[0039] A polygonal rod 24 is symmetrically and slidingly connected to the connecting frame 21, and a marking piece 242 is installed at the front end of the polygonal rod 24. The polygonal rod 24 is connected to the connecting frame 21 through a tension spring 241. One end of the tension spring 241 is fixedly connected to a fixed block on the polygonal rod 24, and the other end is fixedly connected to the connecting frame 21; it also includes a rotating cam 244 for driving the polygonal rod 24 to reciprocate horizontally.

[0040] Furthermore, the marking piece 242 is installed at the front end of the polygonal rod 24 through a tension spring 245 to prevent the marking piece 242 from being squeezed and causing the polygonal rod 24 to deform when the component 13 is bent by an impact load.

[0041] The connecting frame 21 is slidably connected to a slide 223, the slide 223 is rotatably connected to a rotating shaft 243, the cam 244 is installed on the rotating shaft 243, the rotating shaft 1 221 is rotatably connected to the slide 223, the rotating shaft 1 221 and the rotating shaft 243 are connected in transmission, and the transmission method adopts a synchronous belt or a sprocket chain. It should be understood that the rotation speed of the rotating shaft 243 is higher than that of the rotating shaft 1 221, so that the frequency of the reciprocating lateral movement of the multi-faceted rod 24 driven by the cam 244 is increased.

[0042] It further includes a carrier table 1. The turntable 11 is rotatably connected to the carrier table 1. An installation frame 2 is installed on the carrier table 1. A driving member 23 is installed on the installation frame 2. The driving member 23 is a hydraulic cylinder, a pneumatic cylinder, a lead screw slider, or other equipment capable of driving the connecting frame 21 to horizontally traverse. The execution end of the driving member 23 is connected to the connecting frame 21, and the connecting frame 21 is slidably connected to the installation frame 2.

[0043] A plurality of sliding grooves 12 are circumferentially formed on the turntable 11. An inclined block 121 is slidably arranged in each sliding groove 12 through a second spring 125. A positioning block 101 is fixedly connected to the column 10. Before testing, the inclined block 121 is located between the two columns 10. The upper surface of the inclined block 121 supports the circular middle section 131 of the component 13, so that the component 13 is sleeved on the upper section of the column 10. During testing, the inclined block 121 is separated from the component 13, so that the component 13 moves down to the preset impact height on the positioning block 101.

[0044] Slide rods 126 are installed on both sides of the inclined block 121. The second spring 125 is sleeved on the slide rod 126, and one end is connected to the inclined block 121, and the other end is connected to the mounting block on the turntable 11. The mounting block is slidably connected to the turntable 11 through a guide rod 127. A push rod 25 is connected to the connecting frame 21, and the push rod 25 corresponds to the inclined block 121.

[0045] A rectangular rod 122 is fixedly connected to the bottom surface of the inclined block 121. The rectangular rod 122 is slidably connected in the sliding groove 12. A slider 124 is slidably connected to the bottom surface of the turntable 11 where the rectangular rod 122 is located. A first spring 123 is sleeved between the slider 124 and the end of the rectangular rod 122.

[0046] It further includes a first pneumatic cylinder 3 and a second pneumatic cylinder 4. The first pneumatic cylinder 3 and the second pneumatic cylinder 4 are respectively located below the turntable 11 and correspond to the rectangular rod 122. It further includes a material guiding plate 5 corresponding to the first pneumatic cylinder 3 and the second pneumatic cylinder 4 respectively.

[0047] When the device is in operation and use, the installation hole of the upper side plate 132 of the component 13 is aligned with the column 10 manually or by a manipulator, and then the component 13 is sleeved on the column 10. The inclined block 121 is located between the two columns 10 in the initial state. Therefore, when the component 13 is sleeved on the column 10, due to the influence of the height of the inclined block 121, the depth of the component 13 sleeved on the column 10 is relatively shallow, so that the rapid sleeving of the component 13 can be realized.

[0048] Subsequently, the turntable 11 is driven to rotate by a motor installed on the carrier 1. The motor is connected to the connecting shaft on the turntable 11 through a sprocket, a synchronous belt, or a direct connection between the motor output end and the connecting shaft, driving the turntable 11 to rotate intermittently. The turntable 11 moves the clamped part 13 towards the position where the first cam 222 is located, and pauses rotating at the position opposite to the first cam 222. Subsequently, the driving member 23 pushes the connecting frame 21 to move towards the turntable 11, so that the first cam 222 is located above the part 13, and the marking member 242 is located below the part 13 and is ready to be in place.

[0049] Subsequently, a motor connected to the first rotating shaft 221 drives the first rotating shaft 221 to rotate, so that the first cam 222 applies an impact load to the circular middle section 131 of the part 13 reciprocally. During the application process, when there is no manufacturing quality problem at the connection between the side plate 132 and the circular middle section 131 of the part 13, and the strength of the part 13 meets the production requirements, when the first cam 222 contacts the part 13, the part 13 will not bend. The force transmission between the first cam 222 and the part 13 is conducted to the damping member 22, causing the damping member 22 to contract and change the distance between the first cam 222 and the part 13, thus not affecting the rotation of the first rotating shaft 221.

[0050] When there is a quality problem in the connection between the side plate 132 and the circular middle section 131, when the first cam 222 applies an impact load to the part 13, the circular middle section 131 will bend downward, reducing the distance from the marking member 242, and then marking is carried out through the contact between the marking member 242 and the outer periphery of the circular middle section 131.

[0051] Since the marking member 242 reciprocates horizontally in a vertical position below the part 13, when the downward bending degree of the part 13 is small, the reciprocating horizontally moving marking member 242 only contacts the a-point area of the circular middle section 131, that is, the area at the lowest point of the outer periphery of the circular middle section 131. When the marking member 242 only marks the a-point area, it indicates that the bending degree of the part 13 is low. When both the b-point and c-point areas are marked, it indicates that the part 13 is bent more severely, because the heights of the b-point and c-point are higher than that of the a-point. Only when the bending degree of the part 13 is high will it contact the marking member 242. Therefore, the device can mark at different positions of the part 13 through the set marking member 242, making the test results visual, and then when inspecting the part 13 after testing, it can more quickly and intuitively understand the bending degree of the part 13 during testing. Moreover, by using the method of applying an impact load to the part 13 with the first cam 222, compared with the existing technology, it can be safer and more efficient, and the application frequency is also relatively higher. Therefore, this device can meet the production enterprises with batch testing requirements, and the use of electrified structures is less, reducing the failure frequency of electrified structures.

[0052] In addition, during the upward movement of the cam 222 towards above the component 13, the ejector rod 25 connected to the connecting frame 21 will preferentially push the inclined block 121 towards the direction close to the axis of the turntable 11. When the inclined block 121 disengages from the component 13, under the action of its own gravity, the component 13 moves downward to the positioning block 101 of the column 10, reaching the preset impact height. At this time, the component 13 also completely sleevs on the column 10, preventing the component 13 from slipping off the column 10 and effectively ensuring the safety of the test.

[0053] After the test is completed, the connecting frame 21 drives the cam 222 and the marking member 242 away from the turntable 11. The inclined block 121 resets under the action of the second spring 125. The turntable 11 rotates again and pauses at the position where the first cylinder 3 or the second cylinder 4 is located. The rectangular rod 122 is pushed upward by the telescopic end to raise the inclined block 121 and the guide rod 127. When the inclined block 121 rises, it will lift the component 13 and make the component 13 disengage from the column 10. Since the upper surface of the inclined block 121 is inclined towards the outer circumference of the turntable 11, when the component 13 disengages from the column 10, the circular middle section 131 of the component 13 will slide along the upper surface of the inclined block 121;

[0054] Therefore, the inclined block 121 designed in this device can not only accelerate the clamping speed of the component 13 during the clamping of the component 13, but also cooperate with the connecting frame 21 during the test, enabling the component 13 to automatically slide to the preset impact height, avoiding incorrect test results caused by the component 13 not reaching the preset impact height due to manual or robotic placement. When discharging the component 13, the inclined block 121 can automatically lift the component 13 and, relying on the shape designed for the inclined block 121, slide off by itself to complete the discharging.

[0055] Embodiment 2: A ball pin impact resistance test device for mechanical structure components, which is basically the same as Embodiment 1. Further: A sensor is installed on the connecting frame 21. The sensor is used to detect the position of the first rotating shaft 221, and the sensor is electrically connected to the first cylinder 3, the second cylinder 4, and the motor driving the rotation of the turntable 11. The sensor is used to monitor the position change during the rotation time of the rear section of the first rotating shaft 221. When the component 13 does not bend under the impact load, there will also be an upward movement change during the rotation time of the rear section of the first rotating shaft 221. At this time, the sensor monitors that the first rotating shaft 221 changes its position regularly. From this, it can be concluded that the component 13 is qualified for inspection, and the turntable 11 will pause at the position where the first cylinder 3 is located and complete the discharging of the qualified component 13 through the first cylinder 3;

[0056] When the sensor detects that the first rotating shaft 221 does not change its position regularly or stops changing its position during the latter-stage rotation time, it indicates that the component 13 has deformed when subjected to the impact load applied by the first cam 222. Then the turntable 11 will bring the component 13 to a pause at the position of the second cylinder 4, and the second cylinder 4 will complete the discharging of the defective products.

[0057] Embodiment 3: A method for sorting component impact tests detected by a basic sensor, comprising the following steps:

[0058] S1. Install a sensor on the connecting frame 21, the sensor corresponding to the position of the first rotating shaft 221, and the sensor being electrically connected to the first cylinder 3, the second cylinder 4, and the driving motor of the turntable 11;

[0059] S2. Start the impact test, and the first cam 222 applies an impact load to the component 13 through the first rotating shaft 221, and the sensor monitors the position change of the first rotating shaft 221 in the preset latter-stage rotation time in real time;

[0060] S3. Judge the deformation state of the component 13:

[0061] If the sensor detects that the first rotating shaft 221 has periodic position changes during the latter-stage rotation time, it is determined that the component 13 has not deformed, and the turntable 11 rotates to the position of the first cylinder 3, and the first cylinder 3 jacks up to complete the discharging of the qualified products;

[0062] If the sensor detects that the position of the first rotating shaft 221 has no periodic change or the change is interrupted, it is determined that the component 13 has deformed, and the turntable 11 rotates to the position of the second cylinder 4, and the second cylinder 4 jacks up to complete the discharging of the defective products.

[0063] The sensor is an optical encoder or a Hall sensor.

[0064] Further, when the connecting frame 21 approaches the turntable 11, during this process, by making the first rotating shaft 221 idle, if during this process, the sensor monitors that the first rotating shaft 221 is in periodic regular fluctuations, it indicates that the first rotating shaft 221 is bent, and the first rotating shaft 221 needs to be repaired. Therefore, the sensor set in this device can not only be used to detect whether the component 13 is qualified, and start the corresponding first cylinder 3 or second cylinder 4 to discharge materials, but also can perform self-inspection on the first rotating shaft 221 to ensure that the first rotating shaft 221 itself has no bending, thereby improving the accuracy of the test results.

[0065] Embodiment 4: Refer to Figures 1-11 , a method for testing the impact resistance of a ball pin of a mechanical structure component, comprising the following steps:

[0066] S1. Clamp the component 13 on the column 10, and the turntable 11 brings the component 13 to the position opposite to the position where the first cam 222 is located;

[0067] S2, the connecting frame 21 drives the cam 222 and the marking member 242 to approach the component 13. After reaching the preset position, the rotating shaft 221 drives the cam 222 to rotate to apply an impact load to the component 13, and at the same time, the marking member 242 is driven to move horizontally below the component 13;

[0068] S3. When the component 13 is deformed, the marking member 242 will leave a mark on the periphery of the component 13. When the component 13 is not deformed, the marking member 242 will not contact the periphery of the component 13.

[0069] S4. After the test, the turntable 11 drives the component 13 to move to the cylinder 1 3 or the cylinder 2 4 for unloading, thus completing the test process.

[0070] The present invention can mark different positions of the component 13 by setting the marking member 242, so that the test result can be visualized, and then when the tested component 13 is inspected, the bending degree of the component 13 during the test can be more quickly and intuitively understood. The method of applying the impact load to the component 13 by the cam 222 is safer and more efficient than the method in the prior art, and the frequency of application is also relatively higher. Therefore, the device can meet the needs of production enterprises with batch testing requirements, and the electrification structure is used less, reducing the fault frequency of the electrification structure;

[0071] The tilting block 121 designed in the device can not only speed up the clamping speed of the component 13 when clamping the component 13, but also cooperate with the connecting frame 21 during testing to make the component 13 automatically slide to the preset impact height, thereby avoiding the component 13 failing to reach the preset impact height due to manual or mechanical placement, which may cause the test result to be erroneous. When unloading the component 13, the component 13 can be automatically lifted up by the tilting block 121 and unloaded by sliding down by itself based on the shape of the tilting block 121.

[0072] The sensor for monitoring the position of the rotating shaft 221 provided in the device can conveniently identify whether the component 13 of the impact test is qualified, and further facilitate the judgment of qualified and unqualified products of the tested component 13. At the same time, the sensor can also be used to detect whether the rotating shaft 221 itself is bent, thereby improving the accuracy of the impact test results.

[0073] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A ball pin impact resistance testing device for a mechanical structural component, comprising a rotatable turntable (11), characterized in that: Also includes: A plurality of symmetrical groups of columns (10) for clamping mounting holes of side panels (132) at both ends of a component (13); A cam (222) arranged to be horizontally displaceable and connected to the damping member (22); A marking member (242) which moves horizontally synchronously with the cam 1 (222) and is symmetrically arranged; During testing, the cam 1 (222) and the marking member (242) are respectively moved to the upper side of the component (13) and the lower side of the circular middle section (131) of the component (13), the cam 1 (222) applies an impact load to the component (13), and the marking member (242) reciprocates and moves horizontally; A material unloading mechanism, used for unloading the tested parts (13); It also includes a horizontally movable connecting frame (21), the damping member (22) being symmetrically mounted on the connecting frame (21), the end of the damping member (22) being rotatably connected to a rotating shaft (221), the cam (222) being mounted on the rotating shaft (221), and the rotating shaft (221) being driven to rotate by a motor; The turntable (11) is provided with a plurality of slide grooves (12) on its circumference, and a tilting block (121) is slidably arranged in each of the slide grooves (12) via a second spring (125). A positioning block (101) is fixedly connected to the column (10). Before the test, the tilting block (121) is located between the two columns (10), and the upper surface of the tilting block (121) supports the circular middle section (131) of the component (13), so that the component (13) is sleeved on the upper section of the column (10); During testing, the tilting block (121) is separated from the component (13), so that the component (13) moves downward to a preset impact height on the positioning block (101); Slide rods (126) are installed on both sides of the tilting block (121). The second spring (125) is sleeved on the slide rod (126), and one end of the spring is connected to the tilting block (121), and the other end is connected to the mounting block on the turntable (11). The mounting block is slidably connected to the turntable (11) through a guide rod (127). A push rod (25) is connected to the connecting frame (21), and the push rod (25) corresponds to the tilting block (121).

2. A ball pin impact resistance testing device for a mechanical structural component according to claim 1, characterized in that: A polygonal rod (24) is symmetrically and slidably connected to the connecting frame (21); the marking member (242) is mounted on the front end of the polygonal rod (24); and the polygonal rod (24) is connected to the connecting frame (21) via a tension spring 1 (241); It also includes a rotating cam 2 (244) for driving the polygonal rod (24) to reciprocate horizontally.

3. A ball pin impact resistance testing device for a mechanical structural component according to claim 2, characterized in that: The connecting frame (21) is slidably connected to a slide frame (223), the slide frame (223) is rotatably connected to a second rotating shaft (243), the second cam (244) is mounted on the second rotating shaft (243), the first rotating shaft (221) is rotatably connected to the slide frame (223) via a bearing, and the first rotating shaft (221) and the second rotating shaft (243) are connected in a transmission manner.

4. A ball pin impact resistance testing device for mechanical structural components according to claim 3, characterized in that: It also comprises a bearing platform (1), the turntable (11) being rotatably connected to the bearing platform (1), a mounting frame (2) being mounted on the bearing platform (1), a driving member (23) being mounted on the mounting frame (2), an execution end of the driving member (23) being connected to a connecting frame (21), and the connecting frame (21) being slidably connected to the mounting frame (2).

5. The ball pin impact resistance testing device for mechanical structural components according to claim 1, characterized in that: The bottom surface of the tilting block (121) is fixedly connected to a rectangular rod (122), the rectangular rod (122) is slidably connected to the slide groove (12), the rectangular rod (122) is located on the bottom surface of the turntable (11) and is slidably connected to a slider (124), and a spring (123) is sleeved between the slider (124) and the end of the rectangular rod (122).

6. A ball pin impact resistance testing device for mechanical structural components according to claim 5, characterized in that: It also includes a cylinder 1 (3) and a cylinder 2 (4), wherein the cylinder 1 (3) and the cylinder 2 (4) are respectively located below the turntable (11) and correspond to the rectangular rod (122); It also includes guide plates (5) corresponding to the cylinder one (3) and the cylinder two (4) respectively.

7. A method for testing the impact resistance of a ball pin of a mechanical structural component, characterized in that: The device for testing the impact resistance of a ball pin of a mechanical structural component as claimed in claim 6 comprises the following steps: S1, clamping the component (13) on the column (10), and the turntable (11) brings the component (13) to a position opposite to the position of the cam 1 (222); S2, the connecting frame (21) drives the cam 1 (222) and the marking member (242) to approach the component (13), and after reaching the preset position, the rotating shaft 1 (221) drives the cam 1 (222) to rotate to apply an impact load to the component (13), and at the same time, the marking member (242) is driven to move horizontally below the component (13); S3, when the component (13) is deformed, the marking member (242) leaves a mark on the outer periphery of the component (13); when the component (13) is not deformed, the marking member (242) does not contact the outer periphery of the component (13); S4. After the test, the turntable (11) drives the component (13) to move to the cylinder 1 (3) or the cylinder 2 (4) for unloading, thus completing the test process.

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