Detection method of automobile front steering knuckle

Abstract

The invention discloses a detection method for an automobile front steering knuckle, and relates to the technical field of steering knuckle detection, and the method specifically comprises the steps: carrying out the preliminary limiting of the position of a steering knuckle part, and carrying out the insertion, limiting and clamping of the positions of pin holes in the two sides of the rear end of the steering knuckle part; the two detectors are adjusted to the positions, needing to be detected, of the steering knuckle part until the sliding seat slides downwards to drive the detectors to make contact with the detection parts of the steering knuckle part for detection; when the telescopic piece continues to stretch, any detector is in contact with the steering knuckle part; and when the two detectors are in contact with the detection part of the steering knuckle part, the sliding length of the sliding seat is read from the positions of the two longitudinal scale frames, and then whether the current steering knuckle part is consistent with the scale of the standard part or not can be determined. And because the shape of the automobile front steering knuckle is irregular, the automobile front steering knuckle is difficult to be accurately positioned to a detection position.

Description

[0001] This is a divisional application. The application number of the original application is 2024109648437, and the patent title is: A Rapid Detection Device for Automotive Front Steering Knuckles. The original application date is July 18, 2024. The entire content of the original application is incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of steering knuckle detection, and particularly to a rapid detection device for automotive front steering knuckles. Background Art

[0003] An automotive steering knuckle is one of the important parts in an automotive steering axle, which can enable the vehicle to drive stably and transmit the driving direction sensitively. The function of the steering knuckle is to transmit and bear the load at the front of the vehicle, support and drive the front wheels to rotate around the kingpin to steer the vehicle. There are two coaxial holes for installing the kingpin on the ear part of the steering knuckle, called kingpin holes. The kingpin holes are connected to the knuckle parts at both ends of the front axle through the kingpin, enabling the front wheels to deflect a certain angle around the kingpin to steer the vehicle.

[0004] Application No. CN201910972530.5. The present invention relates to the technical field of automotive steering knuckles, and particularly to a device for detecting the center height of an automotive steering knuckle, including a base, a detection pin, and a dial indicator. The base is provided with a rotation hole, the detection pin is provided with a spherical detection ball, and the center of the detection ball is located on the axis of the detection pin. The dial indicator is connected to the base through a gauge rod. During detection, using the above detection device, insert the rod part of the steering knuckle into the rotation hole, insert the detection pin into the kingpin hole of the steering knuckle, place the probe of the dial indicator against the surface of the detection ball, rotate the steering knuckle around the axis of the rod part, and at the same time adjust the position of the detection ball along the axis of the kingpin hole so that the reading of the dial indicator remains unchanged. At this time, the intersection point of the axis of the kingpin hole and the axis of the rod part of the steering knuckle coincides with the center of the detection ball. Detect the distance from the large disk surface of the steering knuckle to the vertex of the detection ball, add or subtract the radius of the detection ball to obtain the value of the center height of the steering knuckle, which is convenient and accurate to use.

[0005] Based on the retrieval of the above patent and the understanding of the application of an existing rapid detection device for automotive front steering knuckles: Currently, when detecting an automotive front steering knuckle, most can only fixedly select a specified position for detection. Due to the irregular shape of the automotive front steering knuckle, it is difficult to accurately locate the detection position.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a rapid detection device for automotive front steering knuckles is provided with the expectation of achieving a more practical value. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a rapid detection device for an automotive front steering knuckle, so as to solve the problem that when detecting an automotive front steering knuckle, most existing devices can only fixedly select specified positions for detection, and due to the irregular shape of the automotive front steering knuckle, it is difficult to accurately locate the detection position.

[0008] The present invention provides a rapid detection device for an automotive front steering knuckle, specifically including: an equipment frame; a detection tool table is fixedly connected to the middle position at the top of the equipment frame, an adjustment seat is fixedly connected to the rear end position at the top of the detection tool table, a convex block is arranged at the top position of the adjustment seat, an assembly frame is slidably connected to the convex block at the top position of the adjustment seat, a positioning bolt is rotatably connected to the middle position below the rear end of the assembly frame, the front end positions of the positioning bolts are respectively in contact with the rear end position of the convex block of the adjustment seat, two sliding rails are arranged at the front end position of the assembly frame, and a positioning device is respectively arranged at the left and right sides at the front end of the assembly frame, and the two positioning devices are respectively located above the two sliding rails of the assembly frame. The middle position at the front end of the assembly frame is of a through design, a telescopic member is fixedly connected to the upper position inside the assembly frame, a sliding frame is fixedly connected to the bottom position of the telescopic member, and a gear member is rotatably connected to the lower front end position of the sliding frame, and the gear member is located in the middle of the two sliding rails of the assembly frame.

[0009] Furthermore, equipment seats are respectively fixedly connected to the four corner positions at the bottom of the equipment frame, a height-adjustable support leg is arranged at the bottom position of each equipment seat, and a universal wheel is arranged at the bottom position of each equipment seat.

[0010] Furthermore, a limit groove is opened at the middle position at the top of the detection tool table, and an insertion cylinder is fixedly connected to the middle position inside the limit groove of the detection tool table. The outer side of the insertion cylinder is inserted into the inside of the steering knuckle part, and the lower position of the steering knuckle part is located in the limit groove of the detection tool table. A positioning column is arranged at the right front end position of the detection tool table.

[0011] Furthermore, a longitudinal scale frame is respectively fixedly connected to the left and right sides at the front end of the assembly frame, the two longitudinal scale frames are symmetrically designed, and a sliding seat is respectively slidably connected to the two sliding rails of the assembly frame, and the two sliding seats are symmetrically designed.

[0012] Furthermore, a tooth condition member is respectively fixedly connected to the inner side position of each sliding seat, the two tooth condition members are symmetrically designed, and the two tooth condition members are respectively in meshing transmission with the left and right side positions of the gear member.

[0013] Furthermore, a position distance member is respectively fixedly connected to the front end position of each sliding seat, a strip-shaped groove is opened at the middle position of each position distance member, and a detector is slidably connected to the strip-shaped groove of each position distance member. The sliding position of the detector with respect to the position distance member can be limited, and the position distance member is provided with scale values.

[0014] Further, a mounting block is fixedly connected to the middle position at the rear end of the adjusting seat, and a horizontal scale rack is fixedly connected to the top position of the mounting block. The horizontal scale rack is located below the positioning bolt.

[0015] Further, a limit clamp A is fixedly installed at the left rear position on the top of the inspection tool table, and a limit clamp B is fixedly installed at the right rear position on the top of the inspection tool table. When the limit clamp A and the limit clamp B can clamp and limit both sides of the rear end of the steering knuckle part.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Place the lower position of the steering knuckle part in the limit groove of the inspection tool table. The right side of the front end of the steering knuckle part fits against the positioning column to initially limit the position of the steering knuckle part. Next, through the clamping cooperation of the limit clamp A and the limit clamp B respectively, the pin hole positions on both sides of the rear end of the steering knuckle part are inserted and limited and clamped. There will be no deviation in the structural position of the steering knuckle part. Therefore, there will be no fixed deviation when detecting the automotive steering knuckle.

[0017] 2. When the telescopic member continues to extend, when any one of the detectors contacts the steering knuckle part, the position of the steering knuckle part will limit the detector in contact from continuing to move downward. The sliding frame moving downward will continue to drive the gear part to displace. Since the gear part meshes and drives with the tooth condition that cannot move further, the gear part itself will rotate, resulting in the effect that the other gear part moves in the opposite direction to the currently limited gear part until the two detectors contact the detection part of the steering knuckle part. Read the sliding length of the sliding seat from the positions of the two longitudinal scale racks to determine whether the current steering knuckle part is consistent with the standard part scale, and rapid position detection can be carried out, and the data accuracy is ensured.

[0018] 3. The positions of the assembly frame and the adjusting seat slide, and the horizontal positions of the two detectors can be adjusted. When the horizontal position of the assembly frame is adjusted, the positions of the two detectors also follow to make horizontal position adjustments, which will adapt to the position selection of the irregular nature of the steering knuckle part itself. At the same time, read the scale value matched by the positioning bolt and the horizontal scale rack to determine the sliding distance of the positions of the assembly frame and the adjusting seat, and ensure the positioning operation of the positions selected by the two detectors. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] In the drawings: Figure 1 Shows a front view structural schematic diagram of a rapid detection device for an automotive front steering knuckle according to an embodiment of the present invention; Figure 2Shows a top - view structural schematic diagram of a rapid detection device for an automotive front steering knuckle according to an embodiment of the present invention; Figure 3 Shows a left - view structural schematic diagram of a rapid detection device for an automotive front steering knuckle according to an embodiment of the present invention; Figure 4 Shows a side - view structural schematic diagram of a rapid detection device for an automotive front steering knuckle according to an embodiment of the present invention; Figure 5 Shows a top - view structural schematic diagram of an adjustment seat as a whole according to an embodiment of the present invention; Figure 6 Shows a side - view structural schematic diagram of an adjustment seat as a whole according to an embodiment of the present invention; Figure 7 Shows a side - view structural schematic diagram of the assembly limit between a jig table and a steering knuckle part according to an embodiment of the present invention; Figure 8 Shows a side - view structural schematic diagram of the disassembled state between a jig table and a steering knuckle part according to an embodiment of the present invention.

[0021] List of reference numerals 1. Equipment frame; 101. Equipment base; 102. Support leg; 103. Universal wheel; 2. Jig table; 201. Insertion cylinder; 202. Positioning column; 203. Limiting clamp A; 204. Limiting clamp B; 3. Adjustment seat; 301. Additional block; 302. Horizontal scale frame; 303. Assembly frame; 331. Positioning bolt; 304. Positioner; 305. Telescopic member; 306. Sliding frame; 307. Gear member; 308. Longitudinal scale frame; 309. Sliding seat; 310. Tooth condition member; 311. Position distance member; 312. Detector; 4. Steering knuckle part. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present disclosure.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meaning as commonly understood by those of ordinary skill in the field to which the present disclosure belongs. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the related art, and should not be interpreted in an idealized or overly formal sense unless clearly defined in the embodiments of the present disclosure.

[0024] In the embodiments of the present disclosure, the use of "first", "second" and similar terms does not denote any order, quantity or importance, but is only used to distinguish different components. Similar terms such as "a", "an" or "the" do not denote a quantity limitation either, but indicate that there is at least one. Similarly, terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. In the following description, spatial and orientation terms such as "upper", "lower", "front", "rear", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present disclosure, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the drawings, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connected", "coupled", "fixed" and "attached" may mean that two elements or structures are directly connected without other elements or structures therebetween, or may mean that two elements or structures are indirectly connected through intermediate elements or structures, unless otherwise explicitly stated herein.

[0025] Embodiment 1: As shown in the Figure 1 to Figure 8 accompanying drawings: The present invention provides a rapid detection device for an automotive front steering knuckle, including: a device frame 1; a jig table 2 is fixedly connected to the middle position at the top of the device frame 1, an adjustment seat 3 is fixedly connected to the rear end position at the top of the jig table 2, a convex block is arranged at the top position of the adjustment seat 3, an assembly frame 303 is slidably connected to the convex block at the top position of the adjustment seat 3, a positioning bolt 331 is rotatably connected to the middle position below the rear end of the assembly frame 303, the front end positions of the positioning bolts 331 are respectively in contact with the rear end position of the convex block of the adjustment seat 3, two sliding rails are arranged at the front end position of the assembly frame 303, and a positioner 304 is respectively arranged at the left and right sides at the front end of the assembly frame 303, the two positioners 304 are respectively located above the two sliding rails of the assembly frame 303, the front middle position of the assembly frame 303 is of a through design, a telescopic member 305 is fixedly connected to the upper position inside the assembly frame 303, a sliding frame 306 is fixedly connected to the bottom position of the telescopic member 305, and a gear member 307 is rotatably connected to the lower front position of the sliding frame 306, and the gear member 307 is located in the middle of the two sliding rails of the assembly frame 303.

[0026] Among them, a device base 101 is fixedly connected to each of the four corner positions at the bottom of the device rack 1. A height-adjustable support leg 102 is provided at the bottom of each device base 101, and a universal wheel 103 is provided at the bottom of each device base 101. When the height of the support leg 102 is higher than that of the universal wheel 103, the entire device rack 1 can be positionally transferred through the universal wheel 103. After adjusting the bottom position of the support leg 102 to be lower than that of the universal wheel 103, the support leg 102 positionally limits and supports the device rack 1.

[0027] Among them, a limit groove is opened at the middle position of the top of the inspection fixture table 2, and an insertion cylinder 201 is fixedly connected to the middle position inside the limit groove of the inspection fixture table 2. The outer side of the insertion cylinder 201 is inserted into the inside of the steering knuckle part 4. The lower position of the steering knuckle part 4 is located in the limit groove of the inspection fixture table 2. A positioning post 202 is provided at the right front end position of the inspection fixture table 2. A limit clamp A 203 is fixedly installed at the left rear position of the top of the inspection fixture table 2, and a limit clamp B 204 is fixedly installed at the right rear position of the top of the inspection fixture table 2. When the limit clamp A 203 and the limit clamp B 204 can clamp and limit the two sides at the rear end of the steering knuckle part 4.

[0028] Among them, a longitudinal scale rack 308 is fixedly connected to each of the left and right positions at the front end of the assembly rack 303. The two longitudinal scale racks 308 are symmetrically designed. A sliding seat 309 is slidably connected to each of the two slide rails of the assembly rack 303. The two sliding seats 309 are symmetrically designed. A toothed condition 310 is fixedly connected to the inner side of each sliding seat 309. The two toothed conditions 310 are symmetrically designed. The two toothed conditions 310 are respectively meshed and driven with the left and right positions of the gear part 307.

[0029] Among them, a position distance part 311 is fixedly connected to the front end of each sliding seat 309. A strip-shaped groove is opened at the middle position of each position distance part 311, and a detector 312 is slidably connected to the strip-shaped groove of each position distance part 311. The sliding position of the detector 312 and the position distance part 311 can be limited, and the position distance part 311 is provided with scale values.

[0030] Among them, an additional block 301 is fixedly connected to the middle position at the rear end of the adjustment seat 3. A transverse scale rack 302 is fixedly connected to the top of the additional block 301. The transverse scale rack 302 is located below the positioning bolt 331. The middle position of the scale value of the transverse scale rack 302 is the starting value. When the positioning bolt 331 is located directly above the adjustment seat 3, the positioning bolt 331 is located at the initial value position of the scale value of the transverse scale rack 302.

[0031] During use: Place the lower position of the steering knuckle part 4 in the limit groove of the inspection fixture table 2. The right side of the front end of the steering knuckle part 4 fits against the positioning post 202 to preliminarily limit the position of the steering knuckle part 4. Next, through the clamping cooperation of the limit clamp A 203 and the limit clamp B 204 respectively, the pin hole positions on both sides of the rear end of the steering knuckle part 4 are inserted and limited for clamping. The structural position of the steering knuckle part 4 will not be offset. Therefore, there will be no fixed deviation when detecting the automotive steering knuckle.

[0032] Embodiment 2: Based on the steering knuckle part 4 provided in the first embodiment after being limited and fixed in position, the extension of the telescopic member 305 will drive the sliding frame 306 to slide downward. The gear member 307 provided on the sliding frame 306 will move downward synchronously. Combining that both sides of the gear member 307 are respectively engaged with a tooth condition 310, the two tooth conditions 310 will respectively drive a sliding seat 309 to slide downward. During this period, the positions of the two detectors 312 inside the position distance member 311 are respectively adjusted, and the two detectors 312 are adjusted to the positions required for detecting the steering knuckle part 4 until the sliding seat 309 drives the detector 312 to contact the detection part of the steering knuckle part 4 for detection when sliding downward; When the telescopic member 305 continues to extend, when any one of the detectors 312 contacts the steering knuckle part 4, the position of the steering knuckle part 4 will limit the contacted detector 312 from continuing to move downward. The downward movement of the sliding frame 306 will continue to drive the displacement of the gear member 307. Since the gear member 307 is in meshing transmission with the tooth condition 310 that cannot move further, the gear member 307 itself will rotate, resulting in the effect that the other gear member 307 moves in the opposite direction to the currently limited gear member 307 until the two detectors 312 contact the detection part of the steering knuckle part 4. Reading the sliding length of the sliding seat 309 from the positions of the two longitudinal scale frames 308 can determine whether the current steering knuckle part 4 is consistent with the standard part scale, enabling rapid position detection and ensuring data accuracy.

[0033] Embodiment 3: The position of the assembly frame 303 slides with the adjustment seat 3, which can adjust the horizontal positions of the two detectors 312. When the horizontal position of the assembly frame 303 is adjusted, the positions of the two detectors 312 also follow for horizontal position adjustment, adapting to the position selection of the irregular nature of the steering knuckle part 4 itself. At the same time, reading the scale value matched by the positioning bolt 331 and the horizontal scale frame 302 can determine the sliding distance of the assembly frame 303 and the adjustment seat 3, ensuring the positioning operation of the positions selected by the two detectors 312.

[0034] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A method for detecting a front steering knuckle of an automobile, characterized in that: include: The specific detection method is as follows: 1): Place the lower part of the steering knuckle part (4) in the limiting groove of the inspection fixture (2), and the right side of the front end of the steering knuckle part (4) is in contact with the positioning column (202), so as to preliminarily limit the position of the steering knuckle part (4); 2): Next, the pin holes on both sides of the rear end of the steering knuckle part (4) are inserted and clamped by the clamping cooperation of the clamping clamp A (203) and the clamping clamp B (204); 3): The extension of the telescopic member (305) drives the sliding frame (306) to slide downward, and the gear member (307) provided on the sliding frame (306) will synchronously follow the downward movement, and a gear condition (310) is respectively engaged on both sides of the gear member (307), and the two gear conditions (310) will respectively drive a sliding seat (309) to slide downward, during which the positions of the two detectors (312) located inside the distance member (311) are respectively adjusted, and the two detectors (312) are adjusted to the positions required for detection of the steering knuckle part (4), until the sliding seat (309) slides downward and drives the detector (312) to contact the detection part of the steering knuckle part (4) for detection; 4): When the telescopic member (305) continues to extend, when any detector (312) contacts the steering knuckle part (4), the position of the steering knuckle part (4) will limit the contacted detector (312) from moving further downward, and the downward movement of the sliding frame (306) will continue to drive the gear member (307) to move. Since the gear member (307) is meshed with the gear condition (310) that cannot move further, the gear member (307) itself will rotate, so that the other gear member (307) and the currently limited gear member (307) move in opposite directions until the two detectors (312) contact the detection part of the steering knuckle part (4). The sliding length of the sliding seat (309) is read from the position of the two longitudinal scale frames (308), so as to determine whether the current steering knuckle part (4) is consistent with the standard part scale, so that a rapid position detection can be performed and the data accuracy is guaranteed.

2. The method for detecting the front steering knuckle of an automobile according to claim 1, characterized in that: During operation, the assembly frame (303) and the adjustment seat (3) slide to adjust the lateral positions of the two detectors (312). When the lateral position of the assembly frame (303) is adjusted, the positions of the two detectors (312) are also adjusted laterally to select a position that is adapted to the irregular nature of the steering knuckle part (4). At the same time, the scale value matched by the positioning bolt (331) and the lateral scale frame (302) is read to determine the sliding distance between the assembly frame (303) and the adjustment seat (3), thereby ensuring the positioning operation of the selected positions of the two detectors (312).

3. The method for detecting the front steering knuckle of an automobile according to claim 1, characterized in that: The invention comprises a detection device for implementing the detection method, the detection device comprising an equipment frame (1); a check fixture table (2) is fixedly connected to the middle position of the top of the equipment frame (1); an adjustment seat (3) is fixedly connected to the rear end position of the top of the check fixture table (2); a convex block is arranged at the top of the adjustment seat (3); the convex block at the top of the adjustment seat (3) is slidably connected to an assembly frame (303); a positioning bolt (331) is rotatably connected to the middle position below the rear end of the assembly frame (303); the front end position of the positioning bolt (331) is in contact with the rear end position of the convex block of the adjustment seat (3); the front end position of the assembly frame (303) is arranged There are two slide rails, and a positioner (304) is respectively arranged at the left and right sides of the front end of the assembly frame (303), and the two positioners (304) are respectively located above the two slide rails of the assembly frame (303). The middle position of the front end of the assembly frame (303) is a through-design. The upper position of the inner part of the assembly frame (303) is fixedly connected with a telescopic member (305), the bottom position of the telescopic member (305) is fixedly connected with a sliding frame (306), and the lower position of the front end of the sliding frame (306) is rotatably connected with a gear member (307), and the gear member (307) is located in the middle position of the two slide rails of the assembly frame (303).

4. The method for detecting the front steering knuckle of an automobile according to claim 3, characterized in that: A limiting groove is provided at the middle position of the top of the inspection fixture table (2), and an inserting sleeve (201) is fixedly connected to the middle position inside the limiting groove of the inspection fixture table (2), the outer position of the inserting sleeve (201) is inserted into the inner position of the steering knuckle part (4), the lower position of the steering knuckle part (4) is located in the limiting groove of the inspection fixture table (2), and a positioning column (202) is provided at the right front end position of the inspection fixture table (2).

5. The method for detecting the front steering knuckle of an automobile according to claim 3, characterized in that: A longitudinal scale frame (308) is fixedly connected to the left and right sides of the front end of the assembly frame (303), and the two longitudinal scale frames (308) are symmetrically designed. The two slide rails of the assembly frame (303) are slidably connected to a sliding seat (309), and the two sliding seats (309) are symmetrically designed.

6. The rapid detection device for the front steering knuckle of an automobile according to claim 5, characterized in that: A gear condition (310) is fixedly connected to the inner side of each sliding seat (309), and the two gear conditions (310) are symmetrically designed. The two gear conditions (310) are respectively meshed with the left and right sides of the gear member (307) for transmission.

7. The rapid detection device for the front steering knuckle of an automobile according to claim 5, characterized in that: A distance piece (311) is fixedly connected to the front end of each sliding seat (309), a strip groove is provided in the middle of each distance piece (311), and a detector (312) is slidably connected in the strip groove of each distance piece (311), the sliding position of the detector (312) and the distance piece (311) can be limited, and the distance piece (311) is provided with a scale value.

8. The rapid detection device for front steering knuckle of an automobile according to claim 1, characterized in that: The middle position of the rear end of the adjustment seat (3) is fixedly connected to an additional block (301), and the top position of the additional block (301) is fixedly connected to a transverse scale frame (302), which is located below the positioning bolt (331).

9. The rapid detection device for the front steering knuckle of an automobile according to claim 1, characterized in that: A limit clamp A (203) is fixedly installed at the left rear position of the top of the inspection fixture table (2), and a limit clamp B (204) is fixedly installed at the right rear position of the top of the inspection fixture table (2). The limit clamp A (203) and the limit clamp B (204) can clamp the pin holes at both sides of the rear end of the limit steering knuckle part (4).

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