A parallelism detection device for automobile steering gear

Abstract

The utility model discloses a kind of automobile steering gear parallelism detection devices, it is related to automobile parts detection equipment technical field, including base and dial gauge, the upper end of the base is provided with sliding slot, the inside of the sliding slot is slidably installed with two groups of sliding blocks, one end of two groups of the sliding block is evenly installed with threaded seat, the upper end of two groups of the sliding block is evenly installed with limit recess, the upper end of two groups of the threaded seat is evenly connected with No. The utility model discloses, by adjusting the distance between two groups of limit recess, can adapt to different length specifications automobile steering gear, reduce equipment investment cost, satisfy the detection demand of diversification.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, and in particular to a device for testing the parallelism of automotive steering gears. Background Technology

[0002] In the entire steering system of a car, the steering gear is a crucial core component, its performance directly affecting the vehicle's safety and handling stability. Steering gear parallelism, as a core technical indicator, is of great significance. If there is a significant error in parallelism, the car is prone to heavy steering, requiring the driver to expend more effort to turn the steering wheel. Prolonged driving can lead to increased driver fatigue and increased driving risks. Furthermore, poor steering gear parallelism can cause the car to veer to one side, failing to travel in the intended straight line. This is particularly dangerous at high speeds, potentially leading to loss of control and serious traffic accidents. Therefore, the parallelism of the steering gear must be rigorously and accurately tested at every stage from production to assembly.

[0003] However, existing automotive steering gear parallelism testing devices have shortcomings. Some testing devices are only applicable to specific models of steering gears. With the rapid development of the automotive industry, the models and specifications of steering gears are becoming increasingly diversified. Enterprises need to continuously purchase different types of testing devices to meet production needs, which undoubtedly increases economic costs. Moreover, frequent replacement of testing devices will reduce the efficiency of testing work and is not conducive to the large-scale production of enterprises. Therefore, an automotive steering gear parallelism testing device is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a vehicle steering gear parallelism detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle steering gear parallelism detection device, comprising a base and a dial indicator. The upper end of the base has a sliding groove, and two sets of sliders are slidably installed inside the sliding groove. One end of each set of sliders is fitted with a threaded seat, and the upper end of each set of sliders is fitted with a limiting recess. A No. 1 bolt is threadedly connected to the upper end of each set of threaded seats. A concave plate is installed at the upper end of each set of limiting recesses, and a telescopic rod is threaded through the upper end of each set of concave plates. A pressure plate is provided inside each set of limiting recesses, and a pressure sensor is installed at the lower end of each set of pressure plates.

[0006] Preferably, both sets of threaded seats are disposed inside the slide groove, and the lower ends of both sets of No. 1 bolts are in contact with the bottom end of the slide groove.

[0007] Preferably, the extended ends of the two sets of telescopic rods pass through the upper ends of the two sets of limiting recesses and are fixed to the upper ends of the two sets of pressure plates, and the two sets of pressure sensors are respectively connected to the two sets of telescopic rods.

[0008] Preferably, a slide rail is installed on the upper end of the base, a slide block is slidably installed on the outer wall of the slide rail, a guide seat is installed on the upper end of the slide block, and an elliptical plate passes through one end of the guide seat.

[0009] Preferably, the upper end of the guide seat has a threaded hole, and a No. 2 bolt is threaded into the inside of the threaded hole.

[0010] Preferably, the lower end of the dial indicator is fixed to the upper end of the elliptical plate, and the lower end of the second bolt is in contact with the upper end of the elliptical plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, with the cooperation of the slide groove, two sets of sliders, two sets of threaded seats, two sets of limiting recesses and two sets of No. 1 bolts, the distance between the two sets of limiting recesses can be adjusted to adapt to automobile steering gears of different lengths, reduce equipment investment costs and meet diverse testing needs.

[0013] 2. In this utility model, the adjustment and fixing of each component is simple. The slider and the elliptical plate can be quickly fixed by bolt No. 1 and bolt No. 2. The automated operation of the clamping mechanism also reduces the intensity of manual labor and improves the detection efficiency.

[0014] 3. In this utility model, by flexibly adjusting the dial indicator, the detection point can be accurately aligned. Combined with its high precision characteristics, the accuracy of the parallelism detection results is effectively guaranteed.

[0015] 4. In this utility model, the setting of the pressure sensor can ensure appropriate clamping force, avoid measurement errors caused by loose or deformed steering gear. Secondly, the presence of the pressure sensor prevents excessive pressure from damaging the steering gear, protects the workpiece being tested, and reduces losses during the testing process. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an automotive steering gear parallelism detection device;

[0017] Figure 2 A top view of an automotive steering gear parallelism detection device is provided for this utility model;

[0018] Figure 3A bottom view of the slider and limiting recess of the automobile steering gear parallelism detection device is provided for this utility model;

[0019] Figure 4 This utility model provides a perspective view of a guide seat and an elliptical plate for a vehicle steering gear parallelism detection device.

[0020] Legend: 1. Base; 2. Slide groove; 3. Slider; 4. Threaded seat; 5. Limiting recess; 6. Slide rail; 7. Slide seat; 8. Dial indicator; 9. Bolt No. 1; 10. Concave plate; 11. Telescopic rod; 12. Pressure plate; 13. Pressure sensor; 14. Guide seat; 15. Elliptical plate; 16. Threaded hole; 17. Bolt No. 2. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a vehicle steering gear parallelism testing device, including a base 1 and a dial indicator 8. A groove 2 is formed at the upper end of the base 1, and two sets of sliders 3 are slidably installed inside the groove 2. A threaded seat 4 is installed at one end of each set of sliders 3, and a limiting recess 5 is installed at the upper end of each set of sliders 3. A No. 1 bolt 9 is threadedly connected to the upper end of each set of threaded seats 4. A concave plate 10 is installed at the upper end of each set of limiting recesses 5, and the upper end of each set of concave plates 10 is penetrated by a... The device is equipped with telescopic rods 11. Each of the two sets of limiting recesses 5 has a pressure plate 12 inside. Each of the two sets of pressure plates 12 has a pressure sensor 13 installed at its lower end. Each of the two sets of threaded seats 4 is located inside the slide groove 2. The lower ends of the two sets of No. 1 bolts 9 are in contact with the bottom of the slide groove 2. The protruding ends of the two sets of telescopic rods 11 pass through the upper ends of the two sets of limiting recesses 5 and are fixed to the upper ends of the two sets of pressure plates 12 respectively. The two sets of pressure sensors 13 are connected to the two sets of telescopic rods 11 respectively.

[0024] The specific settings and functions of this embodiment are described in detail below. The base 1 serves as the basic support component of the entire device. A groove 2 is provided at its upper end. The groove 2 is a long strip-shaped groove structure that provides guidance for the sliding of the slider 3. Two sets of sliders 3 are slidably installed inside the groove 2. The shape of the sliders 3 matches the groove 2 and can slide smoothly along the length of the groove 2. A threaded seat 4 is fixedly installed at one end of each set of sliders 3. The threaded seat 4 is block-shaped and moves synchronously with the slider 3. Both sets of threaded seats 4 are located inside the groove 2. A limiting recess 5 is fixedly installed at the upper end of each set of sliders 3. The groove of the limiting recess 5 is used to place the end of the car steering gear and plays a preliminary limiting role for the steering gear.

[0025] Both sets of threaded seats 4 are threaded to the upper end of a No. 9 bolt. The lower end of the No. 9 bolt passes through the threaded seat 4 and contacts the bottom of the inner side of the slide groove 2. By tightening the No. 9 bolt, the threaded seat 4 and the slider 3 can be fixed in a specific position of the slide groove 2 by the friction between the bolt and the bottom of the slide groove 2, thereby fixing the position of the limiting recess 5.

[0026] Both sets of limiting recesses 5 have concave plates 10 fixedly installed at their upper ends. The openings of the concave plates 10 face downwards and span across the top of the limiting recesses 5. Telescopic rods 11 are installed through the upper ends of both sets of concave plates 10. The telescopic rods 11 can extend and retract along their own axis, with their extended ends pointing vertically downwards. Both sets of limiting recesses 5 have pressure plates 12 inside. The shape of the pressure plates 12 matches the concave surface of the limiting recesses 5 and is used to press the steering gear end placed inside the limiting recesses 5. The extended ends of the two sets of telescopic rods 11 respectively pass through the two... The upper end of the limiting recess 5 is fixed to the upper end of the two pressure plates 12 respectively. The pressure plates 12 can be moved up and down by the extension and retraction of the telescopic rod 11. Pressure sensors 13 are installed at the lower end of the two pressure plates 12. The pressure sensors 13 can detect the pressure value of the pressure plate 12 on the steering gear in real time. The two pressure sensors 13 are respectively connected to the two telescopic rods 11. When the pressure detected by the pressure sensor 13 reaches the preset value, the telescopic rod 11 can be controlled to stop extending and retracting to ensure that the clamping force on the steering gear is moderate.

[0027] The sliding engagement between the slide groove 2 and the two sets of sliders 3 allows the position of the limiting recess 5 to be flexibly adjusted according to the length of the steering gear, making it suitable for testing steering gears of different specifications and greatly improving the versatility of the device. At the same time, the slider 3 is fixed by the No. 1 bolt 9, which is simple and quick to operate, and the fixing is firm and reliable, effectively preventing the limiting recess 5 from shifting during the testing process.

[0028] The clamping mechanism (concave plate 10, telescopic rod 11, pressure plate 12, pressure sensor 13) provides a stable mounting base for the telescopic rod 11. The telescopic rod 11 drives the pressure plate 12 to move up and down, thereby clamping and releasing the steering gear. The mechanism has a high degree of automation. The pressure sensor 13 is connected to the telescopic rod 11 and can monitor the clamping force in real time to ensure that the clamping force is within a suitable range. This ensures that the steering gear does not loosen during the testing process and avoids damage to the steering gear due to excessive pressure, thus improving the safety and accuracy of the testing.

[0029] Example 2: Figure 1 , Figure 2 and Figure 4 As shown, a slide rail 6 is installed on the upper end of the base 1, a slide block 7 is slidably installed on the outer wall of the slide rail 6, a guide seat 14 is installed on the upper end of the slide block 7, an elliptical plate 15 passes through one end of the guide seat 14, a threaded hole 16 is opened through the upper end of the guide seat 14, and a No. 2 bolt 17 is threadedly connected inside the threaded hole 16. The lower end of the dial indicator 8 is fixed to the upper end of the elliptical plate 15, and the lower end of the No. 2 bolt 17 is in contact with the upper end of the elliptical plate 15.

[0030] The overall effect of this embodiment is that a slide rail 6 is fixedly installed on the upper end of the base 1. The slide rail 6 and the slide groove 2 are parallel to each other, providing guidance for the movement of the slide block 7. The slide block 7 is slidably installed on the outer wall of the slide rail 6. The slide block 7 can slide freely along the length direction of the slide rail 6. A guide seat 14 is fixedly installed on the upper end of the slide block 7. The guide seat 14 is block-shaped, and an elliptical plate 15 slides through one end of it. The elliptical plate 15 can slide along the through direction of the guide seat 14, thereby adjusting its own extension length. A threaded hole 16 is opened through the upper end of the guide seat 14. A No. 2 bolt 17 is connected to the internal thread of the threaded hole 16. The lower end of the No. 2 bolt 17 contacts the upper end of the elliptical plate 15. By tightening the No. 2 bolt 17, the elliptical plate 15 can be fixed in a specific position of the guide seat 14. The lower end of the dial indicator 8 is fixed to the upper end of the elliptical plate 15. The measuring head of the dial indicator 8 faces the direction of the limiting recess 5 and is used to detect the parallelism of the steering gear.

[0031] Measuring mechanism (slide rail 6, slide block 7, guide seat 14, elliptical plate 15, bolt No. 2 17, dial indicator 8): The sliding fit between slide rail 6 and slide block 7 facilitates the adjustment of the horizontal position of dial indicator 8, enabling it to be aligned with different testing parts of the steering gear. The sliding of elliptical plate 15 within guide seat 14 and the fixing structure of bolt No. 2 17 allow for flexible adjustment of the extension length and height of dial indicator 8, facilitating precise positioning of measurement points and improving measurement flexibility and accuracy. As a mature measuring tool, dial indicator 8 offers high measurement accuracy and can accurately reflect the parallelism error of the steering gear.

[0032] The usage and working principle of this device are as follows: Before the test begins, the position of the limiting recess 5 needs to be adjusted according to the length specifications of the car steering gear to be tested. First, place one end of the car steering gear into the inside of the limiting recess 5 fixed with the slider 3. Then, the operator loosens the No. 9 bolt on the other set of threaded seats 4, so that the lower end of the No. 9 bolt is separated from the bottom of the slide groove 2. At this time, the other set of sliders 3 can slide freely along the slide groove 2. Pushing the slider 3 will cause the limiting recess 5 to move synchronously until the distance between the two limiting recesses 5 matches the length of the steering gear, ensuring that the other end of the car steering gear can be placed stably in the other set of limiting recesses 5. After the adjustment is completed, tighten the other set of No. 9 bolts. Use the friction between the No. 9 bolt and the bottom of the slide groove 2 to fix the threaded seat 4 and the slider 3, thereby keeping the position of the limiting recess 5 stable.

[0033] Then, the clamping mechanism is controlled so that the two sets of telescopic rods 11 control the two sets of pressure plates 12 to move downward. The pressure of the two sets of pressure plates 12 on the car steering gear is precisely controlled by the two sets of pressure sensors 13, which can fix the two ends of the car steering gear in the interior of the two sets of limiting recesses 5 respectively. When the pressure detected by the pressure sensor 13 reaches the preset appropriate range, it transmits the signal to the telescopic rod 11, and the telescopic rod 11 stops telescopic. At this time, the pressure plate 12 presses tightly on the end of the steering gear, and the steering gear is firmly fixed in the limiting recess 5 by the appropriate clamping force, so as to prevent the steering gear from loosening or shaking during the testing process.

[0034] Finally, after fixing the steering gear, the position of the measuring mechanism is adjusted. The operator loosens the second bolt 17 on the guide seat 14, so that the lower end of the second bolt 17 is separated from the elliptical plate 15. At this time, the elliptical plate 15 can slide freely along the through direction of the guide seat 14, pushing the slide block 7 to slide along the slide rail 6, causing the guide seat 14, the elliptical plate 15 and the dial indicator 8 to move synchronously. The position of the dial indicator 8 in the horizontal direction is adjusted so that it is roughly aligned with the part of the steering gear that needs to be tested for parallelism. Then the elliptical plate 15 is slid to adjust its extension length, thereby precisely adjusting the position of the dial indicator 8 so that the measuring head of the dial indicator 8 contacts the testing surface of the steering gear and ensures that the measuring head is in a suitable contact state. After the adjustment is completed, the second bolt 17 is tightened to fix the elliptical plate 15 on the guide seat 14, so that the position of the dial indicator 8 remains stable.

[0035] At this time, the operator can move the dial indicator 8 along the slide rail 6 by moving the slide block 7, so that the measuring head of the dial indicator 8 contacts the test surface of the steering gear at different positions. Since there is an error in the parallelism of the steering gear, the distance between the test surface at different positions and the reference surface (the plane where the base 1 is located) will be different. The dial indicator 8 will record the numerical changes at these positions by extending and retracting the measuring head. By reading the readings of the dial indicator 8 at different test points and calculating the difference between the readings, the parallelism error of the steering gear can be obtained, thereby determining whether the parallelism of the steering gear meets the standard.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A device for testing the parallelism of a car steering gear, comprising a base (1) and a dial indicator (8), characterized in that: The upper end of the base (1) is provided with a sliding groove (2), and two sets of sliders (3) are slidably installed inside the sliding groove (2). One end of each set of sliders (3) is provided with a threaded seat (4). The upper end of each set of sliders (3) is provided with a limiting recess (5). The upper end of each set of threaded seats (4) is threaded with a No. 1 bolt (9). The upper end of each set of limiting recesses (5) is provided with a concave plate (10). The upper end of each set of concave plates (10) is provided with a telescopic rod (11). The interior of each set of limiting recesses (5) is provided with a pressure plate (12). The lower end of each set of pressure plates (12) is provided with a pressure sensor (13).

2. The automobile steering gear parallelism detection device according to claim 1, characterized in that: Both sets of threaded seats (4) are located inside the slide groove (2), and the lower ends of both sets of No. 1 bolts (9) are in contact with the bottom end of the slide groove (2).

3. The automobile steering gear parallelism detection device according to claim 2, characterized in that: The extended ends of the two sets of telescopic rods (11) pass through the upper ends of the two sets of limiting recesses (5) respectively, and are fixed to the upper ends of the two sets of pressure plates (12) respectively. The two sets of pressure sensors (13) are respectively connected to the two sets of telescopic rods (11).

4. The automobile steering gear parallelism detection device according to claim 1, characterized in that: The upper end of the base (1) is equipped with a slide rail (6), and a slide seat (7) is slidably installed on the outer wall of the slide rail (6). A guide seat (14) is installed on the upper end of the slide seat (7), and an elliptical plate (15) passes through one end of the guide seat (14).

5. The automobile steering gear parallelism detection device according to claim 4, characterized in that: The upper end of the guide seat (14) is provided with a threaded hole (16), and a No. 2 bolt (17) is threadedly connected inside the threaded hole (16).

6. The automobile steering gear parallelism detection device according to claim 5, characterized in that: The lower end of the dial indicator (8) is fixed to the upper end of the elliptical plate (15), and the lower end of the second bolt (17) is in contact with the upper end of the elliptical plate (15).

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