Detection device for inner ball joint of automobile steering device

Abstract

The utility model relates to the field of automobile part manufacturing and detection, and discloses an automobile steering gear inner ball joint detection device which comprises a supporting table, the upper surface of the supporting table is fixedly connected with a supporting frame, the lower surface of the supporting frame is provided with an electric telescopic rod, and the lower surface of the electric telescopic rod is fixedly connected with a positioning plate. A connecting pipe penetrates through and is fixedly connected to the upper surface of the positioning plate, a rubber head is fixedly connected to the lower surface of the connecting pipe, a collecting box is inserted into the upper surface of the supporting table, a positioning assembly is arranged on the upper surface of the supporting table, and a sealing assembly is arranged on the front surface of the supporting table. According to the utility model, through the cooperation of the positioning assembly, the smoothness and flatness of the surface of the ball head can be accurately detected, the subjective difference of sensory judgment can be avoided, and the detection quality and reliability are improved. A powerful guarantee is provided for safe and stable operation of an automobile steering system, and potential safety risks are reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts manufacturing and testing, in particular to a device for testing an inner ball joint of an automobile steering gear. Background Art

[0002] In today's ever-evolving automotive industry, vehicle safety and reliability are paramount. As a key component of a vehicle, the steering system's performance directly impacts its handling and driving safety. The steering gear inner ball joint, a crucial connecting component in the steering system, plays a crucial role in transmitting steering force and enabling wheel steering. The inner ball joint primarily consists of a ball head, ball seat, and dust cover.

[0003] The ball head plays an important role in bearing load and cushioning, ensuring steering accuracy and stability, so it needs to be tested during the production process.

[0004] Traditional methods for testing the surface finish of ball heads rely primarily on manual judgment. These methods include visual inspection for visible cracks, wear, erosion, and other defects, and touch-based judgment, where the surface is felt for flatness and roughness. However, these methods have significant limitations. Manual inspections are inaccurate and unreliable, and are easily influenced by the experience and subjective factors of the inspector.

[0005] In addition, various measuring tools, torque detection tools, and appearance detection tools are also needed during the ball head inspection process, including electronic tools and mechanical tools. These tools are generally stored in drawers after use. However, moisture and oil stains in the factory air can easily penetrate into the drawers, making the tools susceptible to moisture and oil corrosion, affecting the inspection accuracy. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a device for detecting the inner ball joint of an automobile steering gear, aiming to improve the problem in the prior art of relying on manual experience to detect the surface finish and flatness of the ball head, which has great limitations and poor reliability.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a detection device for the inner ball joint of an automobile steering gear, comprising a support platform, the upper surface of the support platform is fixedly connected to a support frame, the lower surface of the support frame is provided with an electric telescopic rod, the lower surface of the electric telescopic rod is fixedly connected to a positioning plate, the upper surface of the positioning plate passes through and is fixedly connected to a connecting pipe, the lower surface of the connecting pipe is fixedly connected to a rubber head, the upper surface of the support platform is plugged with a collection box, the upper surface of the support platform is provided with a positioning assembly, the front surface of the support platform is provided with a sealing assembly, the positioning assembly includes a support plate, the front surface of the support plate passes through and is rotatably connected to a threaded rod, the upper surface of the support platform is slidably connected to a slider, and the rear surface of the slider is hinged to the connecting rod.

[0008] As a further description of the above technical solution:

[0009] The positioning assembly also includes a moving block, the upper surface of the moving block is provided with a T-shaped groove, the inner wall of the T-shaped groove is plugged with a T-shaped block, the right surface of the T-shaped block is fixedly connected to a hemispherical block, and the upper surface of the hemispherical block is provided with a semicircular notch.

[0010] As a further description of the above technical solution:

[0011] The sealing assembly includes a drawer, a sealing pad is fixedly connected to the rear surface of the drawer, and the inner wall of the support platform is elastically connected to a sealing ring via a compression spring.

[0012] As a further description of the above technical solution:

[0013] The positioning plate is slidably connected to the right surface of the support frame, the front surface of the threaded rod is fixedly connected to a hand wheel, and the threaded rod passes through and is threadedly connected to the front surface of the slider.

[0014] As a further description of the above technical solution:

[0015] The moving block is slidably connected to the upper surface of the support platform, the rear end of the connecting rod is hinged to the front surface of the moving block, the semicircular notch is located directly below the rubber head, and the rubber head is configured to be conical.

[0016] As a further description of the above technical solution:

[0017] The connecting rod, the moving block, the T-shaped block and the hemispherical block are provided in two groups, and the two groups of the connecting rod, the moving block, the T-shaped block and the hemispherical block are symmetrically distributed about the center line of the slider.

[0018] As a further description of the above technical solution:

[0019] The drawer passes through and is slidably connected to the front surface of the support platform. The inner wall of the drawer is fixedly connected with a partition. The front surface of the drawer is provided with a handle, and the top end of the front surface of the drawer is provided with a lock.

[0020] As a further description of the above technical solution:

[0021] The sealing gasket is inserted into the inner wall of the support platform, one end of the compression spring is fixedly connected to the rear surface of the sealing ring, the other end of the compression spring is fixedly connected to the inner wall of the rear side of the support platform, and the sealing ring is slidably connected to the inner wall of the support platform.

[0022] The utility model has the following beneficial effects:

[0023] 1. This utility model, through the cooperation of the positioning assembly, can accurately detect the smoothness and flatness of the ball head surface, and can avoid subjective differences in sensory judgment, thereby improving the quality and reliability of detection. It provides a strong guarantee for the safe and stable operation of the vehicle steering system and reduces potential safety risks.

[0024] 2. In the present invention, the sealing assembly can properly store the detection tool and effectively prevent the erosion of moisture and oil stains. This not only extends the service life of the detection tool, but also ensures that it can maintain good performance when needed, providing reliable protection for the detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic front view of the three-dimensional structure of the overall device of the present invention;

[0026] Figure 2 This is a top view of the three-dimensional structure of the support platform in the present invention;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the connecting pipe, hemispherical block, moving block, and collecting box in the present invention;

[0028] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the support platform in the present invention.

[0029] Legend:

[0030] 1. Support table; 2. Support frame; 3. Electric telescopic rod; 4. Positioning plate; 51. Support plate; 52. Threaded rod; 53. Slider; 54. Connecting rod; 55. Moving block; 56. T-shaped block; 57. Hemispherical block; 501. T-shaped slot; 6. Connecting tube; 7. Rubber head; 8. Collection box; 91. Drawer; 92. Sealing ring; 93. Compression spring; 94. Sealing gasket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 3 , the utility model provides an embodiment: a detection device for the inner ball joint of an automobile steering gear, comprising a support platform 1, a lower surface of the support platform 1 is fixed with a support leg, which can provide support for the entire device, an upper surface of the support platform 1 is fixedly connected with a support frame 2, the support frame 2 is located in the middle position of the upper surface of the support platform 1, and an electric telescopic rod 3 is provided on the lower surface of the support frame 2. The electric telescopic rod 3 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The lower surface of the electric telescopic rod 3 is fixedly connected with a positioning plate 4, and the electric telescopic rod 3 can control the lifting of the positioning plate 4. The upper surface of the positioning plate 4 is penetrated and fixedly connected with a connecting pipe 6, and the top of the connecting pipe 6 The end is connected to the external sand box, the sand box can be filled with powdered items, the sand box can control the switch of the powder, the lower surface of the connecting tube 6 is fixedly connected to the rubber head 7, the powder can flow along the trajectory of the connecting tube 6, and can finally be discharged from the rubber head 7, the upper surface of the support platform 1 is plugged with a collecting box 8, the collecting box 8 can collect the leaked powder to avoid the trouble of subsequent cleaning, the upper surface of the support platform 1 is provided with a positioning component, the positioning component can clamp and fix the ball head on the ball joint inside the steering gear, and can be suitable for different models of ball heads, the front surface of the support platform 1 is provided with a sealing component, the sealing component can maintain the seal inside the drawer 91, and can prevent the parts in the drawer 91 from being corroded by impurities such as moisture and oil stains.

[0033] Reference Figure 1-Figure 3The positioning assembly includes a support plate 51, which is located at the front end of the upper surface of the support platform 1. The front surface of the support plate 51 is penetrated and rotatably connected to a threaded rod 52. The threaded rod 52 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The upper surface of the support platform 1 is slidably connected to a slider 53, which slides in the front and rear directions. The rear surface of the slider 53 is hinged with a connecting rod 54. When the slider 53 moves, it drives the connecting rod 54 to swing. The positioning assembly also includes The movable block 55 has a T-shaped slot 501 on its upper surface, and a T-shaped block 56 is inserted into the inner wall of the T-shaped slot 501. The T-shaped slot 501 and the T-shaped block 56 fit together to maintain the stability of the installation, and the T-shaped block 56 can be removed. The right surface of the T-shaped block 56 is fixedly connected with a hemispherical block 57, so that the hemispherical block 57 can be quickly disassembled. By installing hemispherical blocks 57 of different models, it can adapt to ball heads of different diameters. The interior of the hemispherical block 57 is hollow, and a semicircular notch is provided on the upper surface of the hemispherical block 57.

[0034] Reference Figure 1 、 Figure 4 The sealing assembly includes a drawer 91, and a sealing gasket 94 is fixedly connected to the rear surface of the drawer 91. The sealing gasket 94 is set to a square ring shape. The inner wall of the support platform 1 is elastically connected to a sealing ring 92 through a compression spring 93. The sealing ring 92 and the sealing gasket 94 fit together, and both are made of rubber.

[0035] Reference Figure 1-Figure 3The rear end of the connecting rod 54 is hinged to the front surface of the moving block 55, and the semicircular notch is located directly below the rubber head 7, which fits with the rubber head 7. The rubber head 7 is made of rubber material only on the surface, which can maintain a seal but will not deform. The rubber head 7 can It fits with the surface of the ball head. When the ball head is rotated, if there are wrinkles or depressions on the surface of the ball head, the powder in the rubber head 7 will fall into the depressions and wrinkles, and the powder will eventually fall into the collection box 8. In this way, the smoothness of the ball head surface can be detected. The rubber head 7 is set to be conical, and there are two groups of connecting rods 54, moving blocks 55, T-shaped blocks 56, and hemispherical blocks 57. The two groups of connecting rods 54, moving blocks 55, T-shaped blocks 56, and hemispherical blocks 57 are symmetrically distributed on the left and right about the center line of the slider 53, which can drive the hemispherical blocks 57 on both sides to open or contract synchronously. When the hemispherical blocks 57 on both sides are spliced together, there will still be an annular notch in the middle. The inner ball head pull rod connected to the ball head is located at the annular notch. Rotating the inner ball head pull rod can drive the ball head to rotate.

[0036] Reference Figure 1 、 Figure 4 The drawer 91 passes through and is slidably connected to the front surface of the support platform 1, sliding in the front-to-back direction. The inner wall of the drawer 91 is fixedly connected with a partition, which can be used to place different tools in compartments. The front surface of the drawer 91 is provided with a handle for easy grasping. The drawer 91 can be pulled out by grasping the handle. A lock is provided on the top of the front surface of the drawer 91. The lock is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The lock is divided into two parts, one part is located on the support platform 1, and the other part is located on the drawer. On the drawer 91, the two parts can be locked to control the opening and closing of the drawer 91. The sealing gasket 94 is inserted into the inner wall of the support platform 1. The sealing gasket 94 fits the inner wall of the support platform 1 to maintain the seal. One end of the compression spring 93 is fixedly connected to the rear surface of the sealing ring 92, and the other end of the compression spring 93 is fixedly connected to the inner wall of the rear side of the support platform 1. The sealing ring 92 is slidably connected to the inner wall of the support platform 1. When the sealing gasket 94 and the support platform 1 are inserted, the sealing ring 92 will be squeezed. When the sealing ring 92 moves backward, it will squeeze the compression spring 93 to generate a reaction force.

[0037] Working principle: When using this device, first replace the hemispherical block 57 of the corresponding model according to the size of the ball head. When replacing, first take out the T-shaped block 56 from the T-slot 501, disassemble the hemispherical block 57, then take out the hemispherical block 57 of the corresponding model, and plug the T-shaped block 56 and the T-slot 501 to complete the installation of the hemispherical block 57, then place the ball head between the two hemispherical blocks 57, and rotate the threaded rod 52 to drive the slider 53 to move forward. The forward moving slider 53 will drive the connecting rod 54 to swing, and then drive the moving blocks 55, T-shaped blocks 56 and hemispherical blocks 57 on both sides to move toward the center of the support platform 1, and the hemispherical blocks 57 on both sides will clamp the ball head.

[0038] At this time, if the ball head is a standard sphere, the surface of the ball head will be in close contact with the inner wall of the hemispherical block 57. At this time, the inner ball head pull rod is rotated to drive the ball head to rotate. If it can rotate smoothly, the ball head is a standard sphere. If there is an obstruction during rotation, it can be judged that the diameters of the ball head at different positions are different.

[0039] During testing, the electric telescopic rod 3 can be started to drive the positioning plate 4 to move downward, and then drive the connecting tube 6 and the rubber head 7 to move downward. When the rubber head 7 and the ball head are in close contact, the electric telescopic rod 3 is closed to keep the device stable. At this time, the sand box can be opened to discharge the powder. The powder will contact the surface of the ball head. At this time, the ball head is rotated. If there are wrinkles or depressions on the surface of the ball head, the powder in the rubber head 7 will fall into the depressions and wrinkles, and the powder will eventually fall into the collection box 8. In this way, the smoothness of the ball head surface can be tested.

[0040] After the detection is completed, the hand wheel can be rotated in the reverse direction to drive the threaded rod 52 to reverse, thereby driving the moving block 55, the T-shaped block 56 and the hemispherical block 57 to open and release the clamping of the ball head.

[0041] In the process of detecting the ball head, various measuring tools, torque detection tools and appearance detection tools are also needed. After use, these tools can be placed in the drawer 91, and then the drawer 91 is closed. When the drawer 91 is closed, the sealing gasket 94 and the support table 1 will be plugged in. When plugged in, the sealing gasket 94 will squeeze the sealing ring 92 and then the sealing ring 92 will squeeze the compression spring 93 to generate a reaction force. The reaction force of the compression spring 93 will push the sealing ring 92 and the sealing gasket 94 to keep it close together and maintain a seal, which can prevent moisture in the air from penetrating into the tool and corroding it, affecting the accuracy of the tool.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting an inner ball joint of an automobile steering gear, comprising a support platform (1), characterized in that: The upper surface of the support platform (1) is fixedly connected to the support frame (2), the lower surface of the support frame (2) is provided with an electric telescopic rod (3), the lower surface of the electric telescopic rod (3) is fixedly connected to a positioning plate (4), the upper surface of the positioning plate (4) is penetrated and fixedly connected to a connecting tube (6), the lower surface of the connecting tube (6) is fixedly connected to a rubber head (7), the upper surface of the support platform (1) is plugged with a collection box (8), the upper surface of the support platform (1) is provided with a positioning assembly, the front surface of the support platform (1) is provided with a sealing assembly, the positioning assembly includes a support plate (51), the front surface of the support plate (51) is penetrated and rotatably connected to a threaded rod (52), the upper surface of the support platform (1) is slidably connected to a slider (53), and the rear surface of the slider (53) is hinged to a connecting rod (54).

2. The device for detecting the inner ball joint of an automobile steering gear according to claim 1, characterized in that: The positioning assembly further comprises a moving block (55), the upper surface of the moving block (55) is provided with a T-shaped groove (501), the inner wall of the T-shaped groove (501) is plugged with a T-shaped block (56), the right surface of the T-shaped block (56) is fixedly connected with a hemispherical block (57), and the upper surface of the hemispherical block (57) is provided with a semicircular notch.

3. The device for detecting the inner ball joint of an automobile steering gear according to claim 1, characterized in that: The sealing assembly comprises a drawer (91), a sealing pad (94) is fixedly connected to the rear surface of the drawer (91), and the inner wall of the support platform (1) is elastically connected to a sealing ring (92) via a compression spring (93).

4. The device for detecting an inner ball joint of an automobile steering gear according to claim 1, characterized in that: The positioning plate (4) is slidably connected to the right surface of the support frame (2), the front surface of the threaded rod (52) is fixedly connected to a hand wheel, and the threaded rod (52) passes through and is threadedly connected to the front surface of the slider (53).

5. The device for detecting the inner ball joint of an automobile steering gear according to claim 2, characterized in that: The moving block (55) is slidably connected to the upper surface of the support platform (1), the rear end of the connecting rod (54) is hinged to the front surface of the moving block (55), and the semicircular notch is located directly below the rubber head (7), and the rubber head (7) is configured to be conical.

6. The device for detecting the inner ball joint of an automobile steering gear according to claim 2, characterized in that: The connecting rod (54), the moving block (55), the T-shaped block (56), and the hemispherical block (57) are provided in two groups, and the two groups of the connecting rod (54), the moving block (55), the T-shaped block (56), and the hemispherical block (57) are symmetrically distributed about the center line of the slider (53).

7. The device for detecting the inner ball joint of an automobile steering gear according to claim 3, characterized in that: The drawer (91) passes through and is slidably connected to the front surface of the support platform (1); a partition is fixedly connected to the inner wall of the drawer (91); a handle is provided on the front surface of the drawer (91); and a lock is provided at the top end of the front surface of the drawer (91).

8. The device for detecting the inner ball joint of an automobile steering gear according to claim 3, characterized in that: The sealing gasket (94) is inserted into the inner wall of the support platform (1), one end of the compression spring (93) is fixedly connected to the rear surface of the sealing ring (92), the other end of the compression spring (93) is fixedly connected to the inner wall of the rear side of the support platform (1), and the sealing ring (92) is slidably connected to the inner wall of the support platform (1).

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