Ball head rod tension detection equipment

Abstract

A ball head rod tension detection device comprises a clamping jaw assembly, a base frame, a first driving piece vertically arranged on the upper portion of the base frame and a second driving piece vertically arranged on the lower portion of the base frame, the base frame is provided with a vertical guide rail, the upper portion of the guide rail is slidably connected with a first sliding table, and the lower portion of the guide rail is slidably connected with a second sliding table. The first sliding table is driven by a first driving piece to ascend and descend, the first sliding table is provided with a third driving piece in the vertical direction, the clamping jaw assembly is connected to the output end of the third driving piece and driven by the third driving piece to ascend and descend, and a tension sensor is arranged between the third driving piece and the clamping jaw assembly. The second sliding table is driven by a second driving piece to ascend and descend, the base frame is further provided with a clamping base used for clamping a workpiece, and the second sliding table is provided with two fixing claws arranged at intervals. According to the scheme, automatic righting and positioning of the rod body of the ball head rod are achieved, reading accuracy is ensured when the tension sensor conducts tension detection on the rod body of the ball head rod subsequently, operation is reliable, whole-process automation is achieved, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, and more specifically to a ball joint tension testing device. Background Technology

[0002] As a core transmission component of the automotive chassis steering system, the ball joint tie rod's structural strength and assembly precision directly determine the vehicle's handling performance and driving safety. In current manufacturing processes, to ensure that the ball joint tie rod's axial load-bearing capacity meets design requirements, rigorous tensile testing must be performed before it leaves the factory.

[0003] However, due to the ball joint structure of the ball joint rod, the rod body and the ball joint seat can rotate relative to each other. This means that in traditional testing processes, the angle of the rod body needs to be manually adjusted repeatedly to keep it coaxially aligned with the tension sensor. This manual operation mode has significant drawbacks: operators need to frequently visually calibrate the position of the rod body, which is not only labor-intensive and inefficient, but also prone to angular deviations due to human factors, directly affecting the accuracy of the tension sensor readings. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the prior art, when performing tensile testing on a ball head, manual intervention is required to adjust the angle of the club body, which not only results in low testing efficiency but also makes it prone to angle deviation due to human factors.

[0005] To address the aforementioned problems, this utility model provides a ball joint tension testing device, comprising a gripper assembly, a base frame, a first driving member vertically disposed on the upper part of the base frame, and a second driving member vertically disposed on the lower part of the base frame. The base frame is provided with a vertical guide rail, with a first slide table slidably connected to the upper part of the guide rail and a second slide table slidably connected to the lower part. The first slide table is driven to move up and down by the first driving member, and the first slide table is provided with a vertical third driving member. The gripper assembly is connected to the output end of the third driving member and is driven to move up and down by the third driving member, and a tension sensor is provided between the third driving member and the gripper assembly. The second slide table is driven to move up and down by the second driving member. The base frame is also provided with a clamping seat located below the guide rail for clamping the workpiece, and the second slide table is provided with two spaced-apart fixing claws for abutting against the workpiece.

[0006] In the above scheme, the ball joint's ball head is positioned downwards and fixed on the clamp, while the ball joint body is positioned upwards. When testing is required, the second drive component first lowers the second slide, and the fixing claw on the second slide straightens and positions the ball joint body. Then, the first drive component lowers the first slide until the clamp assembly can hold the ball joint body. Subsequently, the third drive component raises the clamp assembly, allowing the tension sensor to detect the tension in the ball joint body. Compared with existing technologies, the above scheme achieves automatic straightening and positioning of the ball joint body, ensuring the accuracy of the readings when the tension sensor detects the tension in the ball joint body. It is reliable, fully automated, and highly efficient.

[0007] In an improved embodiment, the gripper assembly includes a gripper platform, a left gripper, a right gripper, and a gripper cylinder. The gripper platform is connected to the output end of a third drive unit. The gripper platform is provided with a slide rail extending in the left and right directions. The left and right grippers are slidably connected to the left and right sides of the slide rail, respectively. The left and right grippers are both driven by the gripper cylinder to open and close, thereby achieving stable clamping of the ball head shaft through the left and right grippers.

[0008] In an improved embodiment, the gripper platform has a left air passage extending to the right on the left side and a right air passage extending to the left on the right side. The left air passage has a left push block, and the right air passage has a right push block. The gripper cylinder acts on the left and right push blocks to move them left and right. The left push block abuts against the left side of the left gripper, and the right push block abuts against the right side of the right gripper. A spring is provided between the left and right grippers. Thus, when the gripper cylinder pushes the left and right push blocks closer together, the left and right grippers move closer together to achieve a gripping action; when the gripper cylinder pulls the left and right push blocks away from each other, the spring pushes the left and right grippers away from each other to achieve separation. This structure is stable in operation and easy to maintain.

[0009] In an improved embodiment, both the left push block and the right push block are cylindrical with their axes along the front-back direction, thereby ensuring line contact between the left push block and the left gripper, and between the right push block and the right gripper, reducing wear.

[0010] In an improved design, the distance between the two fixed claws is greater than the outer diameter of the upper part of the workpiece and less than the outer diameter of the lower part of the workpiece, so that as the second slide descends, the fixed claws can better straighten the ball head rod.

[0011] In an improved embodiment, the first driving component is a downwardly positioned cylinder, with its cylinder body mounted on a base frame and its cylinder rod connected to a first slide; the second driving component is an upwardly positioned cylinder, with its cylinder body mounted on a base frame and its cylinder rod connected to a second slide, ensuring reliable and stable operation.

[0012] In an improved embodiment, the third driving component is an electric cylinder. The cylinder body of the third driving component is mounted on the first slide, and the cylinder rod is connected to the upper end of the tension sensor. The lower end of the tension sensor is connected to the gripper assembly. The fact that the third driving component is an electric cylinder makes the driving of the gripper assembly more precise. Attached Figure Description

[0013] Figure 1 A schematic diagram of a ball joint tension testing device;

[0014] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.

[0015] Explanation of reference numerals in the attached figures.

[0016] 1. Base frame; 11. Guide rail; 12. Clamping seat; 2. First driving component; 3. Second driving component; 4. First slide table; 5. Second slide table; 6. Third driving component; 7. Gripper assembly; 71. Gripper platform; 711. Slide rail; 72. Left gripper; 73. Right gripper; 74. Gripper cylinder; 75. Left push block; 76. Right push block; 77. Spring; 8. Tension sensor; 9. Fixed gripper. Detailed Implementation

[0017] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0018] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0019] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Please see Figure 1 and Figure 2 The present invention provides a ball joint tension testing device, comprising a gripper assembly 7, a base frame 1, a first driving member 2 vertically disposed on the upper part of the base frame 1, and a second driving member 3 vertically disposed on the lower part of the base frame 1. The base frame 1 is provided with a vertical guide rail 11, a first slide 4 slidably connected to the upper part of the guide rail 11 and a second slide 5 slidably connected to the lower part of the guide rail 11. The first slide 4 is driven to rise and fall by the first driving member 2. The first slide 4 is provided with a vertical third driving member 6. The gripper assembly 7 is connected to the output end of the third driving member 6 and is driven to rise and fall by the third driving member 6. A tension sensor 8 is provided between the third driving member 6 and the gripper assembly 7. The second slide 5 is driven to rise and fall by the second driving member 3. The base frame 1 is also provided with a clamping seat 12 located below the guide rail 11 for clamping the workpiece. The second slide 5 is provided with two spaced-apart fixing claws 9 for abutting against the workpiece.

[0022] In the above scheme, the ball joint seat of the ball head is placed downwards and fixed on the clamp 12, while the ball head body is set upwards. When testing is required, the second drive member 3 first drives the second slide 5 to descend, and the fixing claw 9 on the second slide 5 will straighten and position the ball head body. Then, the first drive member 2 drives the first slide 4 to descend until the clamp assembly 7 can clamp the ball head body. Subsequently, the third drive member 6 drives the clamp assembly 7 to rise, and the tension sensor 8 can then detect the tension of the ball head body. Compared with the prior art, the above scheme realizes automatic straightening and positioning of the ball head body, ensuring the accuracy of the reading when the tension sensor 8 detects the tension of the ball head body. It is reliable, fully automated, and highly efficient.

[0023] like Figure 2 As shown, in this embodiment, the gripper assembly 7 includes a gripper platform 71, a left gripper 72, a right gripper 73, and a gripper cylinder 74. The gripper platform 71 is connected to the output end of the third drive member 6. The gripper platform 71 is provided with a slide rail 711 extending in the left and right directions. The left gripper 72 and the right gripper 73 are slidably connected to the left and right sides of the slide rail 711, respectively. The left gripper 72 and the right gripper 73 are both driven by the gripper cylinder 74 to achieve separation and engagement, thereby achieving stable clamping of the ball head rod through the left gripper 72 and the right gripper 73.

[0024] More specifically, the gripper platform 71 has a left air passage extending to the right on the left side and a right air passage extending to the left on the right side. The left air passage has a left push block 75, and the right air passage has a right push block 76. The gripper cylinder 74 acts on the left push block 75 and the right push block 76 to push them to move left and right. The left push block 75 abuts against the left side of the left gripper 72, and the right push block 76 abuts against the right side of the right gripper 73. A spring 7 is provided between the left gripper 72 and the right gripper 73. 7. The left and right ends of the spring 77 abut against the upper parts of the left gripper 72 and the right gripper 73, respectively. Thus, when the gripper cylinder 74 pushes the left push block 75 and the right push block 76 closer to each other, the left gripper 72 and the right gripper 73 move closer to each other to achieve the gripping action. When the gripper cylinder 74 pulls the left push block 75 and the right push block 76 away from each other, the spring 77 will push the left gripper 72 and the right gripper 73 away from each other to achieve separation. This structure is stable in operation and easy to maintain.

[0025] As an improvement to the gripper assembly 7, both the left push block 75 and the right push block 76 are cylindrical with their axes along the front-back direction, so that the left push block 75 and the left gripper 72, and the right push block 76 and the right gripper 73 are in line contact, reducing wear.

[0026] Considering that the outer diameter of the ball joint shaft near the ball joint seat is greater than the outer diameter of the end away from the ball joint seat, or in other words, the outer diameter of the upper part of the ball joint shaft on the clamp 12 is smaller than the outer diameter of the lower part, in this embodiment, the distance between the two fixing claws 9 is greater than the outer diameter of the upper part of the workpiece and smaller than the outer diameter of the lower part of the workpiece, so that as the second slide 5 descends, the fixing claws 9 can better straighten the ball joint shaft.

[0027] In this embodiment, the first driving component 2 is a downwardly positioned cylinder, with its cylinder body mounted on the base frame 1 and its cylinder rod connected to the first slide table 4; the second driving component 3 is an upwardly positioned cylinder, with its cylinder body mounted on the base frame 1 and its cylinder rod connected to the second slide table 5, ensuring reliable and stable operation.

[0028] In this embodiment, the third driving component 6 is an electric cylinder. The cylinder body of the third driving component 6 is mounted on the first slide table 4 and the cylinder rod is connected to the upper end of the tension sensor 8. The lower end of the tension sensor 8 is connected to the claw platform 71 of the gripper assembly 7. The fact that the third driving component 6 is an electric cylinder makes the driving of the gripper assembly 7 more precise.

[0029] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A ball stud tension detection apparatus characterized by comprising: The system includes a gripper assembly (7), a base frame (1), a first drive member (2) vertically positioned on the upper part of the base frame (1), and a second drive member (3) vertically positioned on the lower part of the base frame (1). The base frame (1) is provided with a vertical guide rail (11). A first slide table (4) is slidably connected to the upper part of the guide rail (11), and a second slide table (5) is slidably connected to the lower part. The first slide table (4) is driven to rise and fall by the first drive member (2). The first slide table (4) is provided with a third drive member (5) vertically positioned. 6) The gripper assembly (7) is connected to the output end of the third drive member (6) and is driven to rise and fall by the third drive member (6). A tension sensor (8) is provided between the third drive member (6) and the gripper assembly (7). The second slide (5) is driven to rise and fall by the second drive member (3). The base frame (1) is also provided with a clamping seat (12) for clamping the workpiece located below the guide rail (11). The second slide (5) is provided with two spaced fixed claws (9) for abutting against the workpiece.

2. The ball and socket lever tension detection apparatus according to claim 1, wherein The gripper assembly (7) includes a gripper platform (71), a left gripper (72), a right gripper (73), and a gripper cylinder (74). The gripper platform (71) is connected to the output end of the third drive unit (6). The gripper platform (71) is provided with a slide rail (711) extending in the left and right directions. The left gripper (72) and the right gripper (73) are slidably connected to the left and right sides of the slide rail (711), respectively. The left gripper (72) and the right gripper (73) are both driven by the gripper cylinder (74) to achieve separation and engagement.

3. The ball and socket lever tension detection apparatus according to claim 2, wherein The claw platform (71) is provided with a left air passage located on the left and extending to the right and a right air passage located on the right and extending to the left. The left air passage is provided with a left push block (75) and the right air passage is provided with a right push block (76). The gripper cylinder (74) acts on the left push block (75) and the right push block (76) to push the left push block (75) and the right push block (76) to move left and right. The left push block (75) abuts against the left side of the left gripper (72) and the right push block (76) abuts against the right side of the right gripper (73). A spring (77) is provided between the left gripper (72) and the right gripper (73).

4. The ball and socket lever tension detection apparatus according to claim 3, characterized by Both the left push block (75) and the right push block (76) are cylindrical with their axes along the front-back direction.

5. The ball and socket lever tension detection apparatus of claim 1, wherein The distance between the two fixed claws (9) is greater than the outer diameter of the upper part of the workpiece and less than the outer diameter of the lower part of the workpiece.

6. The ball and socket lever tension detection apparatus of claim 1, wherein The first driving member (2) is a downward-positioned cylinder, the cylinder body of the first driving member (2) is mounted on the base frame (1) and the cylinder rod is connected to the first slide (4); the second driving member (3) is an upward-positioned cylinder, the cylinder body of the second driving member (3) is mounted on the base frame (1) and the cylinder rod is connected to the second slide (5).

7. The ball and socket lever tension detection apparatus of claim 1, wherein The third driving component (6) is an electric cylinder. The cylinder body of the third driving component (6) is installed on the first slide (4) and the cylinder rod is connected to the upper end of the tension sensor (8). The lower end of the tension sensor (8) is connected to the gripper assembly (7).

Images