Pedal simulator adjustment fork hole position detection device with automatic righting function

Abstract

The present invention discloses a pedal simulator adjustment fork hole position detection device with an automatic straightening function, which belongs to the field of detection and inspection technology in assembly manufacturing, and is designed to solve the problems of poor stability of detection results in the prior art. The pedal simulator adjustment fork hole position detection device with an automatic straightening function of the present invention comprises a shell, a measuring groove is provided on the side wall of the shell; a guide slider is provided inside the shell, a measuring hole is provided on the guide slider, and the guide slider is configured to be able to move along the axis of the shell but cannot rotate relative to the shell; a measuring rod of a dial indicator extends into the shell; a measuring pin can be inserted into the measuring groove, the measuring hole and the center hole of the adjustment fork of the part to be detected, and the end of the measuring rod abuts against the measuring pin or is connected to the measuring pin. The pedal simulator adjustment fork hole position detection device with an automatic straightening function of the present invention can detect the adjustment fork hole position more quickly and accurately, and avoid differences in detection results caused by operating factors and measurement techniques.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and inspection in assembly manufacturing, and in particular to a pedal simulator adjustment fork hole position detection device with automatic righting function and a pedal simulator adjustment fork hole position detection method. Background Art

[0002] A car is an efficient means of transportation that uses electricity, gasoline or diesel to drive the wheels. Drivers often need to use pedals when controlling a car. In cars with a high degree of electronics, a pedal simulator is usually set up.

[0003] Most of the existing pedal simulators use a pure spring solution, while there are also spring + rubber solutions. Regardless of which solution is used, the adjustment fork hole position of the pedal simulator in the electronic power-assisted braking system that relies on spring return needs to be tested during the manufacturing process to ensure the assemblability and pedal feel of the entire vehicle.

[0004] At present, the commonly used detection method is a combination of a height gauge and a measuring rod. The defects of this method include at least: the detection results vary greatly due to factors such as the processing status of each component and the differences in the measurement operator's techniques, and the repeatability and reproducibility of the detection results are poor, making it difficult to meet the stability requirements of the detection system and the stability control requirements of the manufacturing process. Summary of the invention

[0005] One object of the present invention is to provide a pedal simulator adjustment fork hole position detection device with an automatic righting function, which has more accurate and reliable detection results.

[0006] Another object of the present invention is to provide a method for detecting the hole position of a pedal simulator adjustment fork which can perform rapid and accurate detection.

[0007] To achieve this object, on the one hand, the present invention adopts the following technical solutions:

[0008] A pedal simulator adjustment fork hole position detection device with automatic righting function, comprising a hollow cylindrical shell, a shell opening for the entry and exit of a to-be-detected part is provided at the bottom of the shell, and a measuring groove extending axially along the shell is provided on the side wall; a guide slider is provided inside the shell, and a measuring hole is provided on the side wall of the guide slider, and the guide slider is configured to be movable along the axis of the shell but not to rotate relative to the shell; a dial indicator is provided on the top of the shell, and the measuring rod of the dial indicator extends into the shell; the detection device also includes a rod-shaped measuring pin, which can be inserted into the measuring groove, the measuring hole and the center hole of the adjustment fork of the to-be-detected part, and the end of the measuring rod abuts against or is connected to the measuring pin.

[0009] Particularly, a slide rail is arranged on one of the outer wall of the guide sliding block and the inner wall of the outer shell, and a slide groove matched with the slide rail is arranged on the other.

[0010] In particular, four slide rails are arranged at equal intervals on one of the outer wall of the guide slider and the inner wall of the shell, and four slide grooves matching with the slide rails are arranged at equal intervals on the other.

[0011] In particular, four measuring grooves are provided at equal intervals on the side wall of the shell, and four measuring holes are provided at equal intervals on the side wall of the guide slide block.

[0012] Particularly, the measuring groove is an elongated hole.

[0013] In particular, the detection device further comprises a base, which is mounted on the bottom of the shell, and is provided with a base opening and a base fixing hole for fixing the to-be-detected component at a position corresponding to the opening of the shell.

[0014] Particularly, a plurality of base fixing holes are centrally symmetrically arranged on the base.

[0015] In particular, the distance between at least one of the plurality of base fixing holes and the axis of the housing is not equal to the distance between the other base fixing holes and the axis of the housing.

[0016] On the other hand, the present invention adopts the following technical solutions:

[0017] A method for detecting the hole position of a pedal simulator adjustment fork comprises the following steps: firstly using a depth gauge to return the reading of a dial indicator to zero, and then measuring a part to be detected; the sum of the design size of the part to be detected and the reading of the dial indicator is the actual detection result.

[0018] In particular, the detection method comprises the following steps:

[0019] Step S1, adjusting the reading of the depth gauge to A, where A=design dimension C of the object to be tested-radius R of the measuring pin;

[0020] Step S2, inserting the depth gauge into the housing of the detection device and pushing the guide slider to move in the housing through the measuring pin until the depth gauge is completely inserted into the housing, and returning the reading of the dial indicator to zero;

[0021] Step S3, pulling out the depth gauge, inserting the to-be-detected object into the housing, and sleeve the center hole of the adjustment fork of the to-be-detected object on the measuring pin or clamping it on the measuring pin;

[0022] Step S4, reading the reading B of the dial indicator, the actual hole size D of the part to be detected = the designed size C of the part to be detected + the reading B of the dial indicator.

[0023] The measuring pin of the pedal simulator adjustment fork hole position detection device with automatic straightening function of the present invention can be inserted into the measuring groove, the measuring hole and the center hole of the adjustment fork of the part to be detected. The measuring pin is used to play the automatic straightening function, and the adjustment fork hole position can be detected more quickly and accurately, avoiding the difference in detection results caused by operating factors and measuring techniques, and the detection device has high repeatability and reproducibility; the measuring groove extending axially along the outer shell increases the adjustment space of the setting position of the measuring pin, and when the height of the part to be detected changes significantly, the measuring pin can be adjusted to a suitable position along the measuring groove. A set of detection devices can be used to cover the size range of all products, reducing the cost investment of the detection device; the detection device is easy to use, easy to operate, and can quickly output the detection results.

[0024] The pedal simulator adjustment fork hole position detection method of the present invention calibrates the dial indicator to zero before formal detection, which can simplify the subsequent detection process, realize rapid detection and output results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a detection device provided in a specific embodiment of the present invention;

[0026] Figure 2 is an axial cross-sectional view of a detection device provided in a specific embodiment of the present invention;

[0027] Figure 3 is a transverse cross-sectional view of a detection device provided in a specific embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a guide slider provided in a specific embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of a housing provided in a specific embodiment of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the working state of the detection device provided by the specific embodiment of the present invention.

[0031] In the figure:

[0032] 1. Shell; 2. Part to be tested; 3. Guide slide block; 4. Dial indicator; 5. Measuring pin; 6. Slide rail; 7. Slide groove; 8. Base; 11. Shell opening; 12. Measuring groove; 21. Center hole of adjusting fork; 22. Fixing bolt; 31. Measuring hole; 41. Measuring rod; 81. Base opening; 82. Base fixing hole. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] This embodiment discloses a pedal simulator adjustment fork hole position detection device with an automatic righting function and a pedal simulator adjustment fork hole position detection method based on the detection device. Figures 1 to 6 As shown, the detection device includes a hollow cylindrical shell 1, the bottom of the shell 1 is provided with a shell opening 11 for the detection member 2 to enter and exit, and the side wall is provided with a measuring groove 12 extending along the axial direction of the shell 1, and the measuring groove 12 is preferably a long hole. A guide slider 3 is arranged inside the shell 1, and a measuring hole 31 is arranged on the side wall of the guide slider 3. The guide slider 3 is configured to be able to move along the axis of the shell 1 but cannot rotate relative to the shell 1. A dial indicator 4 is arranged on the top of the shell 1, and the measuring rod 41 of the dial indicator 4 extends into the shell 1. During detection, the rod-shaped measuring pin 5 can be inserted into the measuring groove 12, the measuring hole 31 and the center hole 21 of the adjustment fork of the detection member 2, thereby limiting the activity space of the center hole 21 of the adjustment fork, so that the detection member 2 can only move linearly along the axis of the shell 1 but cannot rotate relative to the shell 1, and realize automatic straightening; the end of the measuring rod 41 abuts on the measuring pin 5 or is connected to the measuring pin 5 to perform the detection work.

[0035] The detection device utilizes the measuring pin 5 to achieve an automatic straightening function, can detect and adjust the fork hole position more quickly and accurately, avoids differences in detection results caused by operating factors and measuring techniques, and has high repeatability and reproducibility; the measuring groove 12 extending axially along the shell 1 increases the adjustment space of the setting position of the measuring pin 5, and when the height of the component 2 to be detected changes significantly, the measuring pin 5 can be adjusted to a suitable position along the measuring groove 12. A set of detection devices can be used to cover the size range of all products, reducing the cost investment of the detection device; the detection device is easy to use, easy to operate, and can quickly output the detection results.

[0036] The specific method for realizing "the guide slider 3 is configured to be movable along the axis of the housing 1 but not to rotate relative to the housing 1" is not limited, preferably, Figure 4 and Figure 5 As shown, a slide rail 6 is provided on one of the outer wall of the guide slider 3 and the inner wall of the housing 1, and a slide groove 7 matching the slide rail 6 is provided on the other. In this embodiment, the slide groove 7 is provided on the outer wall of the guide slider 3, the slide rail 6 is provided on the inner wall of the housing 1, and the slide groove 7 is semi-enclosedly sleeved on the slide rail 6, so that the guide slider 3 can move up and down along the inner wall of the housing 1. The slide groove 7 is provided on the inner wall of the housing 1 and the slide rail 6 is provided on the outer wall of the guide slider 3, and the working principle and function are the same.

[0037] The matching structure of the slide rail 6 and the slide groove 7 strictly limits the moving direction of the guide slider 3, further realizing the automatic alignment function of the detection device and reducing the influence of the part status and operating method on the detection.

[0038] Preferably, four slide rails 6 are arranged at equal intervals (center-symmetrically) on one of the outer wall of the guide slider 3 and the inner wall of the outer shell 1, and four slide grooves 7 matching with the slide rails 6 are arranged at equal intervals (center-symmetrically) on the other. Multiple slide rails 6 and slide grooves 7 are used in a one-to-one manner to avoid the situation where the matching structure of a single slide rail 6 and slide groove 7 is stuck due to the skewness of the guide slider 3.

[0039] During the inspection, the measuring pin 5 sequentially passes through the measuring groove 12, the measuring hole 31, the adjusting fork center hole 21 of the inspected part 2, the measuring hole 31 and the measuring groove 12 on the other side, thereby limiting the adjusting fork center hole 21. The adjusting fork center hole 21 can only move along the slide rail 6 with the guide slider 3, realizing the automatic straightening function of the adjusting fork and reducing the influence of the part state and operation method on the inspection result.

[0040] On the basis of the above structure, four measuring grooves 12 are evenly spaced on the side wall of the housing 1, and four measuring holes 31 are evenly spaced on the side wall of the guide slider 3. Two measuring grooves 12 / measuring holes 31 arranged relatively to each other about the axis of the housing 1 are a group, and the four measuring grooves 12 / measuring holes 31 form two groups of structures respectively. The measuring pin 5 uses only one group of structures in each detection, but when the structure of the component 2 to be detected is relatively special or the space in the detection environment is limited, the measuring pin 5 can be replaced to another group of structures.

[0041] like Figure 1 and Figure 3 As shown, the detection device further includes a base 8, which is mounted on the bottom of the housing 1. The base 8 is provided with a base opening 81 and a base fixing hole 82 for fixing the detected object 2 at a position corresponding to the housing opening 11. The detected object 2 is provided with a fixing bolt 22. When testing, the detected object 2 is inserted into the housing 1, and the fixing bolt 22 is passed through the base fixing hole 82, so that the detected object 2 and the housing 1 remain relatively fixed, ensuring that the detection device runs more smoothly and the detection result is more accurate and reliable.

[0042] In order to make the connection structure between the detected part 2 and the housing 1 more stable, a plurality of base fixing holes 82 may be centrally symmetrically arranged on the base 8. Preferably, the distance between at least one of the plurality of base fixing holes 82 and the axis of the housing 1 is not equal to the distance between the other base fixing holes 82 and the axis of the housing 1, and the plurality of base fixing holes 82 arranged in a staggered manner can meet the use requirements of the detected parts 2 of different specifications (the distance between the fixing bolts 22 of different detected parts 2 and their axes may be different), further achieving maximum coverage of the size requirements of all detected parts 2 and reducing the detection cost.

[0043] The pedal simulator based on the detection device adjusts the fork hole position detection method, which is to first use a depth gauge to return the reading of the dial indicator 4 to zero, and then measure the part to be detected 2, and the sum of the design size of the part to be detected 2 and the reading of the dial indicator 4 is the actual detection result.

[0044] Calibrating the dial indicator to zero before formal testing can simplify the subsequent testing process, achieve rapid testing and output results.

[0045] Preferably, the detection method comprises the following steps:

[0046] Step S1, adjusting the reading of the depth gauge to A, where A=design dimension C of the object to be tested 2-radius R of the measuring pin 5.

[0047] Step S2, insert the depth gauge into the housing 1 of the detection device, and simulate the detected object 2 pushing the guide slider 3 with the measuring pin 5 inserted to move along the slide groove 7 inside the housing 1. After the depth gauge is fully inserted into the housing 1, stop the depth gauge, and at this time, return the reading of the dial indicator 4 to zero.

[0048] Step S3: Pull out the depth gauge. Figure 6 As shown, the detected object 2 is inserted into the housing 1. The fixing bolt 22 is inserted into the base fixing hole 82, and the adjusting fork center hole 21 of the detected object 2 is sleeved on the measuring pin 5 or clamped on the measuring pin 5.

[0049] Step S4, read the reading B of the dial gauge 4, the actual hole size D of the part to be tested 2 = the design size C of the part to be tested 2 + the reading B of the dial gauge 4. When reading the reading of the dial gauge 4, it is necessary to distinguish between positive and negative values. It is preferred that the dial gauge 4 is set to display positive values ​​when the probe moves up and negative values ​​when it moves down.

[0050] The detection process is complete.

[0051] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A pedal simulator adjustment fork hole position detection device with automatic righting function, characterized in that: The invention comprises a hollow cylindrical shell (1), wherein the bottom of the shell (1) is provided with a shell opening (11) for a to-be-detected member (2) to enter and exit, and the side wall is provided with a measuring groove (12) extending axially along the shell (1); a guide slider (3) is arranged inside the shell (1), and a measuring hole (31) is arranged on the side wall of the guide slider (3), and the guide slider (3) is configured to be movable along the axis of the shell (1) but not to be rotated relative to the shell (1); a dial indicator (4) is arranged on the top of the shell (1), and a measuring rod (41) of the dial indicator (4) extends into the shell (1); the detection device further comprises a rod-shaped measuring pin (5), and the measuring pin (5) can be inserted into the measuring groove (12), the measuring hole (31) and the central hole (21) of the adjustment fork of the to-be-detected member (2), and the end of the measuring rod (41) abuts against the measuring pin (5) or is connected to the measuring pin (5); The detection device further comprises a base (8), wherein the base (8) is mounted on the bottom of the housing (1), and a base opening (81) and a base fixing hole (82) for fixing the object to be detected (2) are arranged on the base (8) at a position corresponding to the housing opening (11); The part to be detected (2) is provided with a fixing bolt (22). During detection, the part to be detected (2) is inserted into the housing (1), and the fixing bolt (22) is inserted into the base fixing hole (82).

2. The pedal simulator adjustment fork hole position detection device with automatic righting function according to claim 1 is characterized in that: A slide rail (6) is arranged on one of the outer wall of the guide slide block (3) and the inner wall of the outer shell (1), and a slide groove (7) matching with the slide rail (6) is arranged on the other.

3. The pedal simulator adjustment fork hole position detection device with automatic righting function according to claim 2 is characterized in that: Four slide rails (6) are arranged at equal intervals on one of the outer wall of the guide slider (3) and the inner wall of the outer shell (1), and four slide grooves (7) matching with the slide rails (6) are arranged at equal intervals on the other.

4. The pedal simulator adjustment fork hole position detection device with automatic righting function according to any one of claims 1 to 3, characterized in that: Four measuring grooves (12) are provided at equal intervals on the side wall of the housing (1), and four measuring holes (31) are provided at equal intervals on the side wall of the guide slide block (3).

5. The pedal simulator adjustment fork hole position detection device with automatic righting function according to any one of claims 1 to 3, characterized in that: The measuring groove (12) is a long hole.

6. The pedal simulator adjustment fork hole position detection device with automatic righting function according to claim 1, characterized in that: A plurality of base fixing holes (82) are centrally symmetrically arranged on the base (8).

7. The pedal simulator adjustment fork hole position detection device with automatic righting function according to claim 6, characterized in that: The distance between at least one of the plurality of base fixing holes (82) and the axis of the housing (1) is not equal to the distance between the other base fixing holes (82) and the axis of the housing (1).

8. A method for detecting the hole position of a pedal simulator adjustment fork, characterized in that: Using the pedal simulator adjustment fork hole position detection device with automatic righting function as described in any one of claims 1 to 7, first use a depth gauge to return the reading of the dial indicator (4) to zero, and then measure the part to be tested (2). The sum of the design size of the part to be tested (2) and the reading of the dial indicator (4) is the actual test result.

9. The pedal simulator adjustment fork hole position detection method according to claim 8, characterized in that: The detection method comprises the following steps: Step S1, adjusting the reading of the depth gauge to A, where A=design dimension C of the object to be detected (2)-radius R of the measuring pin (5); Step S2, inserting the depth gauge into the housing (1) of the detection device and pushing the guide slider (3) to move in the housing (1) through the measuring pin (5) until the depth gauge is completely inserted into the housing (1), and returning the reading of the dial indicator (4) to zero; Step S3, pulling out the depth gauge, inserting the to-be-detected object (2) into the housing (1), and sleeve-mounting the adjusting fork center hole (21) of the to-be-detected object (2) on the measuring pin (5) or clamping on the measuring pin (5); Step S4, reading the reading B of the dial gauge (4), the actual hole size D of the part to be tested (2) = the design size C of the part to be tested (2) + the reading B of the dial gauge (4).

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