Double set steering nut steel ball guide pipe hole position degree testing fixture

Abstract

The utility model relates to automobile steering gear detection equipment technical field, specifically disclose a double -group formula steering nut steel ball guide pipe hole position degree gauge, including bottom plate and the positioning frame of installing on bottom plate, the nut body is installed through the positioning member on the bottom plate, the dial indicator is installed on the positioning frame, and the probe is rotatably connected on the bottom plate, the probe and the dial indicator abut, and the probe is installed with the steel ball at the end away from the dial indicator. Can quickly complete the detection of steering nut guide pipe hole and spiral raceway position degree, need not complex operation process and long -time equipment debugging, greatly improve the detection efficiency, the operation process of simple and direct observation of the present application, need not operating personnel to have high and profound professional skill or after long -time professional training, the manufacturing cost is lower. Meanwhile, its maintenance cost is relatively lower, need not complex maintenance equipment and professional maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive steering gear testing equipment, specifically a double-group steering nut ball guide hole position gauge. Background Technology

[0002] The steering nut is one of the core components of a recirculating ball steering system. It converts the rotational motion at the input end into linear displacement through a ball screw pair. This motion conversion is achieved through the circulation of balls inside the steering nut. The balls roll in the helical raceway of the nut, thus converting the rotational motion into linear motion. Subsequently, this linear motion is further converted into rotational output through the meshing of the rack and pinion with the sector teeth of the steering arm shaft, completing the transmission and amplification of steering force.

[0003] The manufacturing process of steering nuts directly affects the performance and service life of the steering system. In modern automobile manufacturing, steering nuts typically adopt an insert-type external circulation structure. This structure, due to its simple design, mature process, and reliable operation, has become a standard configuration for professional manufacturers both domestically and internationally.

[0004] In existing technologies, coordinate measuring machines (CMMs) are commonly used to detect the positional accuracy of the guide hole and the helical raceway in steering nut. While CMMs can provide high-precision measurement results, they have some significant shortcomings:

[0005] First, the detection efficiency of coordinate measuring machines (CMMs) is relatively low, making it difficult to meet the requirements of modern intelligent manufacturing for high-efficiency production. Second, CMMs require highly skilled operators who have undergone professional training to operate them accurately, which increases the operating costs of enterprises and has certain shortcomings. Utility Model Content

[0006] The purpose of this utility model is to provide a double-group steering nut steel ball guide hole position gauge to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-group steering nut steel ball guide hole position gauge, including a base plate and a positioning frame mounted on the base plate. The nut body is mounted on the base plate through a positioning component. A dial indicator is mounted on the positioning frame, and a probe is rotatably connected to the base plate. The probe abuts against the dial indicator, and a steel ball is mounted on the end of the probe away from the dial indicator.

[0008] Furthermore, a spiral groove is formed on the inner side of the nut body, and the steel ball contacts the spiral groove.

[0009] Furthermore, a nylon dial indicator box is installed on the positioning frame, and the dial indicator is mounted on the positioning frame through the nylon dial indicator box, with a third screw between the positioning frame and the dial indicator.

[0010] Furthermore, the dial indicator is provided with a striking pin unit, and the probe intermittently contacts the striking pin unit.

[0011] Furthermore, a pin is provided between the probe and the positioning frame, and the probe is rotatably connected to the positioning frame through the pin.

[0012] Furthermore, the probe has a spherical groove on one side of the steel ball, and a colloid is placed between the spherical groove and the steel ball to improve the stability of the installation between the steel ball and the probe.

[0013] Furthermore, the positioning component includes multiple positioning pins mounted on the base plate, and the nut body has a positioning groove adapted to the positioning pin, and the positioning pin engages with the positioning groove.

[0014] Furthermore, the base plate is fitted with a nylon handle by a plurality of first screws.

[0015] Furthermore, a plurality of second screws are provided between the base plate and the positioning frame.

[0016] Furthermore, the nylon watch case is fixed to the base plate by a plurality of fourth screws.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the double-set steering nut steel ball guide hole position gauge, through the cooperation between the base plate, positioning frame, probe, steel ball, dial indicator, etc., can quickly complete the detection of the position of the steering nut guide hole and the helical raceway, without complicated operation procedures and long-term equipment debugging, which greatly improves the detection efficiency.

[0018] Meanwhile, the operation process of this application is simple and intuitive, requiring no advanced professional skills or extensive professional training from the operators. The combined use of the dial indicator and probe makes the measurement process more intuitive; operators only need to follow the standard procedure to quickly obtain accurate measurement results.

[0019] More specifically, compared with existing coordinate measuring machines, the fixture in this application has a simple structure, mainly composed of common mechanical components such as a base plate, positioning frame, dial indicator, and probe, resulting in lower manufacturing costs. Simultaneously, its maintenance costs are also relatively low, requiring no complex maintenance equipment or professional maintenance personnel. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure from another perspective, provided for an embodiment of the present utility model.

[0023] Figure 3 This is a schematic diagram of a partial explosion state structure provided in an embodiment of the present utility model;

[0024] Figure 4 An overall top view provided for an embodiment of this utility model;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure in sectional view along the AA section;

[0026] Figure 6 This is a schematic diagram of the connection structure between the steel ball and the probe provided in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the contact state between the probe and the dial indicator provided in an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the nut body structure provided in an embodiment of the present utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Nut body; 2. Base plate; 3. Locating pin; 4. Locating bracket; 5. Dial indicator; 51. Strike pin unit; 6. Probe; 7. Steel ball; 8. Pin; 9. Nylon handle; 10. Nylon indicator box; 11. First screw; 12. Second screw; 13. Third screw; 14. Fourth screw; 15. Spiral groove; 16. Locating groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-8 This utility model provides a technical solution: a double-group steering nut steel ball 7 guide hole position gauge, including a base plate 2 and a positioning frame 4 mounted on the base plate 2. The nut body 1 is mounted on the base plate 2 through a positioning component; a dial indicator 5 is mounted on the positioning frame 4, and a probe 6 is rotatably connected to the base plate 2. The probe 6 abuts against the dial indicator 5, and a steel ball 7 is mounted on the end of the probe 6 away from the dial indicator 5.

[0032] Specifically, the double-set steering nut steel ball 7 guide hole position gauge includes a base plate 2 and a positioning frame 4 mounted on the base plate 2. The nut body 1 is mounted on the base plate 2 via a positioning element. Preferably, if the positioning element cannot smoothly mount the nut body 1 onto the base plate 2, it indicates a deviation in the position of the workpiece guide hole. If it can be smoothly inserted, the next measurement step can proceed. A dial indicator 5 is mounted on the positioning frame 4, and a probe 6 is rotatably connected to the base plate 2. Specifically, the dial indicator 5 is a high-precision measuring tool, capable of accurately measuring the displacement change of the probe 6. The probe 6 abuts against the dial indicator 5, and a steel ball 7 is mounted on the end of the probe 6 furthest from the dial indicator 5. Through the connection between the probe 6 and the steel ball 7, and the contact between the steel ball 7 and the spiral groove 15 of the nut body 1, the position change of the guide hole of the nut body 1 can be accurately transmitted to the dial indicator 5, thereby achieving high-precision detection. Meanwhile, the inspection tool has a simple structure through the combination of components such as base plate 2, positioning frame 4, dial indicator 5, probe 6 and steel ball 7. Operators do not need complicated operating skills. They only need to install the nut body 1 on the base plate 2 and use the probe 6 and dial indicator 5 to perform position detection, which greatly reduces the difficulty of operation and improves the detection efficiency.

[0033] In the embodiments provided by this utility model, a spiral groove 15 is provided on the inner side of the nut body 1, and the steel ball 7 contacts the spiral groove 15. More specifically, the spiral groove 15 inside the nut body 1 is the movement trajectory of the ball during actual operation. The design of the steel ball 7 contacting the spiral groove 15 can simulate the movement state of the steering nut during actual operation, making the test results closer to the actual use situation, thereby more accurately evaluating the performance of the steering nut.

[0034] In the embodiment provided by this utility model, a nylon dial indicator box 10 is installed on the positioning frame 4, and the dial indicator 5 is installed on the positioning frame 4 through the nylon dial indicator box 10. A third screw 13 is provided between the positioning frame 4 and the dial indicator 5. Through the cooperation of the nylon dial indicator box 10 and the third screw 13, the dial indicator 5 can be firmly installed on the positioning frame 4, avoiding the dial indicator 5 from being loosened during the testing process and affecting the measurement accuracy, thus ensuring the stability and reliability of the test.

[0035] In the embodiment provided by this utility model, a striker unit 51 is provided on the dial indicator 5, and the probe 6 intermittently abuts against the striker unit 51. That is, when detecting the nut body 1, the probe 6 abuts against the striker unit 51. By designing the striker unit 51, the contact between the probe 6 and the dial indicator 5 is made more sensitive, and the small displacement of the probe 6 can be quickly transmitted to the dial indicator 5 through the striker unit 51, which improves the measurement sensitivity and can more accurately detect the small deviation of the guide hole position.

[0036] In the embodiments provided by this utility model, a pin 8 is provided between the probe 6 and the positioning frame 4, and the probe 6 is rotatably connected to the positioning frame 4 through the pin 8. The pin 8 can ensure that the connection between the probe 6 and the positioning frame 4 is firm and reliable, and will not loosen or fall off during the detection process, thus ensuring the stability of the detection, while also facilitating the rotation of the probe 6.

[0037] In the embodiments provided by this utility model, a spherical groove is provided on one side of the steel ball 7 on the probe 6, and a colloid is provided between the spherical groove and the steel ball 7 to improve the stability of the installation between the steel ball 7 and the probe 6. The cooperation between the spherical groove and the steel ball 7, as well as the use of the colloid, enables the steel ball 7 to be firmly installed on the probe 6, avoiding the steel ball 7 from being loosened or falling off during the detection process and affecting the detection results, thereby improving the reliability of the detection.

[0038] In the embodiments provided by this utility model, the positioning component includes multiple positioning pins 3 mounted on the base plate 2. The nut body 1 has a positioning groove 16 adapted to the positioning pins 3. The positioning pins 3 engage with the positioning grooves 16. Before testing, the nut body 1 is mounted on the base plate 2 using the positioning component. If the positioning component cannot smoothly mount the nut body 1 onto the base plate 2, it indicates a deviation in the position of the workpiece guide hole. If it can be smoothly inserted, the next measurement step can proceed. The engagement method between the positioning pins 3 and the positioning grooves 16 allows for quick and accurate mounting of the nut body 1 onto the base plate 2, improving the installation efficiency of the nut body 1 and saving preparation time before testing.

[0039] In the embodiments provided by this utility model, the base plate 2 is equipped with a nylon handle 9 by a plurality of first screws 11. The nylon handle 9 makes it easier for operators to pick up and move the inspection tool, improving the convenience of operation. At the same time, the nylon handle has good anti-slip performance, making it more convenient for users to use.

[0040] In the embodiments provided by this utility model, a plurality of second screws 12 are provided between the base plate 2 and the positioning frame 4. The plurality of second screws 12 can firmly connect the base plate 2 and the positioning frame 4 together, ensuring the structural stability between the two and preventing the positioning frame 4 from loosening or shifting due to vibration or external force during the detection process, thereby ensuring the accuracy of the detection from the side and achieving better results.

[0041] In the embodiments provided by this utility model, the nylon watch box 10 is fixed to the base plate 2 by a plurality of fourth screws 14. The plurality of fourth screws 14 can firmly fix the nylon watch box 10 to the base plate 2, ensuring the stability of the nylon watch box 10 during the detection process and preventing the nylon watch box 10 from loosening due to external force or vibration.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-set steering nut ball guide hole position gauge, comprising a base plate (2) and a positioning frame (4) mounted on the base plate (2), characterized in that: The nut body (1) is installed on the base plate (2) by a positioning component; A dial indicator (5) is installed on the positioning frame (4), and a probe (6) is rotatably connected to the base plate (2). The probe (6) abuts against the dial indicator (5), and a steel ball (7) is installed at the end of the probe (6) away from the dial indicator (5).

2. The double-set steering nut steel ball guide hole position gauge according to claim 1, characterized in that: The nut body (1) has a spiral groove (15) on its inner side, and the steel ball (7) is in contact with the spiral groove (15).

3. The double-set steering nut ball guide hole position gauge according to claim 1, characterized in that: A nylon gauge box (10) is installed on the positioning frame (4), and the dial indicator (5) is installed on the positioning frame (4) through the nylon gauge box (10). A third screw (13) is provided between the positioning frame (4) and the dial indicator (5).

4. The double-set steering nut steel ball guide hole position gauge according to claim 3, characterized in that: The dial gauge (5) is provided with a striker unit (51), and the probe (6) intermittently contacts the striker unit (51).

5. The double-set steering nut steel ball guide hole position gauge according to claim 1, characterized in that: A pin (8) is provided between the probe (6) and the positioning frame (4), and the probe (6) is rotatably connected to the positioning frame (4) through the pin (8).

6. The double-set steering nut ball guide hole position gauge according to claim 1, characterized in that: The probe (6) has a spherical groove on one side of the steel ball (7), and a colloid is provided between the spherical groove and the steel ball (7) to improve the stability of the installation between the steel ball (7) and the probe (6).

7. The double-set steering nut ball guide hole position gauge according to claim 1, characterized in that: The positioning component includes multiple positioning pins (3) mounted on the base plate (2), and the nut body (1) is provided with a positioning groove (16) that is adapted to the positioning pins (3), and the positioning pins (3) are engaged with the positioning grooves (16).

8. The double-set steering nut steel ball guide hole position gauge according to claim 1, characterized in that: The base plate (2) is fitted with a nylon handle (9) by a plurality of first screws (11).

9. A double-set type steel ball guide hole position gauge according to claim 1, characterized in that: Multiple second screws (12) are provided between the base plate (2) and the positioning frame (4).

10. A double-set steering nut ball guide hole position gauge according to claim 3, characterized in that: The nylon watch box (10) is fixed to the base plate (2) by a plurality of fourth screws (14).

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