CN215766779U - Detection tool for rear steering knuckle - Google Patents
Detection tool for rear steering knuckle Download PDFInfo
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- CN215766779U CN215766779U CN202122071018.9U CN202122071018U CN215766779U CN 215766779 U CN215766779 U CN 215766779U CN 202122071018 U CN202122071018 U CN 202122071018U CN 215766779 U CN215766779 U CN 215766779U
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- 238000001514 detection method Methods 0.000 title claims description 138
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model provides a checking fixture for a rear steering knuckle, which comprises a workbench, wherein a vertically arranged pin for detecting a bearing hole is arranged on the workbench, a brake caliper connecting hole detecting unit, a sliding column connecting hole detecting unit, a lower control arm mounting hole detecting unit and a transverse pull rod mounting hole detecting unit are arranged on the table surface of the workbench beside the pin, each detecting unit comprises a detecting hole and a detecting pin shaft which forms axial sliding displacement with the detecting hole, the detecting holes and the designed hole cores of holes to be detected are arranged in the same core, and the detecting pin shaft and the designed hole diameters of the holes to be detected are consistent. When the rear steering knuckle (or called rear knuckle) is detected, the rear steering knuckle is firstly placed on a positioning device and is positioned in a positioning mode of one surface of a hole, namely, the bearing hole is firstly detected, and if the bearing hole is qualified, all related connecting or mounting holes are detected successively.
Description
Technical Field
The utility model belongs to the technical field of automobile parts, and particularly relates to a special comprehensive gauge for a rear steering knuckle of a rear Macpherson suspension structure of a new energy automobile.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure.
The knuckle is also called a cleat, and bears a variable impact load in a driving state of the vehicle, and thus is required to have high strength. The rear steering knuckle used by the new energy automobile with the four-wheel Macpherson suspension structure is required to have higher positioning accuracy in assembly. Therefore, the requirements for various form and position tolerances and dimensional tolerances of the steering knuckle are required to be stricter during production. As shown in fig. 1 and 2, the rear knuckle 100 is provided with a bearing mounting hole 101, a strut mounting hole i 102 and a strut mounting hole ii 103, a caliper mounting hole i 104 and a caliper mounting hole ii 105, a lower control arm mounting hole 106, a tie rod mounting hole 107, a wheel speed mounting hole 108, and a wheel speed limiting hole 109. To so many functional holes, in addition to the high standard requirement of the rear knuckle, in order to guarantee the machining efficiency and the detection reliability of the rear knuckle, a special checking fixture for detecting the position degree of the rear knuckle needs to be designed.
The technical scheme is that firstly, main positioning holes of a part to be detected 1 are correspondingly arranged on a positioning shaft 2 fixedly connected to a base, other positioning holes of the part to be detected 1 are correspondingly arranged on a positioning pin 3 and a positioning pin 4 fixedly connected to the base respectively, so that the positioning shaft 2, the positioning pin 3 and the positioning pin 4 determine the unique position of the part to be detected 1 and are used for fixing the part to be detected 1 (lines 1-4 of the specification [0017] of the document 1), and therefore, when three corresponding holes which need to be detected by the positioning shaft 2, the positioning pin 3 and the positioning pin 4 are met simultaneously, namely one bearing hole and two brake caliper mounting and connecting holes meet design requirements, subsequent detection can be carried out, and when the three holes and the positioning shaft 2 cannot be simultaneously detected, The unqualified problem of the part 1 to be detected of locating pin 3 and locating pin 4 adaptation can not be known, that is to say, the position tolerance or the size tolerance of the part 1 to be detected on the locating shaft 2, locating pin 3 and locating pin 4 or the brake caliper mounting hole can not be detected if the out-of-tolerance phenomenon occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special comprehensive detection tool for a rear steering knuckle of a rear Macpherson suspension structure of a new energy automobile, which can be used for conveniently, accurately and efficiently detecting and ensuring the product quality.
The utility model provides a utensil is examined to back knuckle, includes the workstation, its characterized in that: the detection device comprises a workbench, and is characterized in that a vertically-arranged pin for detecting a bearing hole is arranged on the workbench, a brake caliper connecting hole detection unit, a sliding column connecting hole detection unit, a lower control arm mounting hole detection unit and a transverse pull rod mounting hole detection unit are arranged on a table top of the workbench beside the pin, each detection unit comprises a detection hole and a detection pin shaft which forms axial sliding displacement with the detection hole, each detection hole and a designed hole core position of a to-be-detected hole are arranged in a concentric mode, and the detection pin shaft and the designed hole diameter of the to-be-detected hole are consistent.
Compared with the prior art, the utility model has the beneficial effects that: when the rear steering knuckle (or called rear knuckle) is detected, the rear steering knuckle is firstly placed on a positioning device and positioned in a positioning mode of one surface of a hole, namely, the bearing hole is firstly detected, if the bearing hole is qualified, the relevant connecting or mounting holes are detected successively, so that the form and position tolerance detection of relevant parts can be implemented by the most basic elements, qualified products and unqualified products can be detected, and more importantly, the unqualified out-of-tolerance result appears, so that timely and targeted implementation processing can be realized.
Drawings
FIGS. 1 and 2 are schematic perspective views of the front and rear sides of a rear knuckle;
FIG. 3 is a schematic view of the detected state of the rear knuckle;
FIG. 4 is a schematic perspective view of the present invention;
fig. 5 is a schematic structural view of a caliper connection hole detection platen in the present invention.
Detailed Description
As shown in fig. 1 and 2, a rear knuckle 100 of a rear macpherson suspension structure of a new energy vehicle is provided, in which a central bearing hole 101 is a core part, a strut connecting leg 1023 is arranged above the central bearing hole, strut connecting holes 102 and 103 are formed in the strut connecting leg 1023, a lower control arm mounting hole 106 is arranged below the strut connecting leg 1023, a transverse pull rod mounting hole 107, a brake caliper connecting hole 104 and a brake caliper connecting hole 105 are respectively formed in the front and rear parts of the bearing hole 101, and a wheel speed mounting hole 108 and a wheel speed limiting hole 109 are further formed between the transverse pull rod mounting hole 107 and the strut connecting leg 1023.
Therefore, the utility model provides the following checking tool for detecting the form and position tolerance of the related hole of the rear steering knuckle 100, and in order to facilitate the operation of a detector, locking bolts 11 are arranged at the bottoms of four corners of a workbench 10 and connected with supporting blocks 12, so that the table top is at a proper height.
As shown in fig. 3 and 4, the checking fixture for the rear steering knuckle comprises a workbench 10, a vertically arranged pin 20 for detecting a bearing hole 101 is arranged on the workbench 10, a brake caliper connecting hole detecting unit 30, a sliding column connecting hole detecting unit 40, a lower control arm mounting hole detecting unit 50 and a transverse pull rod mounting hole detecting unit 60 are arranged on the table top of the workbench 10 beside the pin 20, each detecting unit comprises a detecting hole and a detecting pin shaft forming axial sliding displacement with the detecting hole, the detecting holes and the designed hole core positions of the holes to be detected are arranged in the same core, and the detecting pin shaft and the designed hole diameter of the holes to be detected are consistent.
The utility model is used for detecting the aperture and the position degree of each mounting hole or connecting hole, and the detection tool has the advantages of reasonable structure, high strength and size precision, capability of realizing detection rapidly and reliable detection result.
When the detection tool provided by the scheme is used for detecting the steering knuckle, the bearing hole 101 is firstly detected through the pin 20, and other parts are detected if the bearing hole 101 is qualified. Then, the caliper attachment holes 104 and 105, the spool attachment hole detection hole 411, and the like are described in detail below.
The caliper connecting hole detection unit 30 comprises a caliper connecting hole detection platen 31, a caliper connecting hole detection hole 311 with a hole core vertically arranged on the caliper connecting hole detection platen 31, the position of the caliper connecting hole detection hole 311 is consistent with the design hole core of the caliper connecting holes 104 and 105, and the detection section of a caliper connecting hole detection pin shaft 32 matched with the caliper connecting hole detection hole 311 is consistent with the design hole diameters of the caliper connecting holes 104 and 105. The caliper connecting hole detection unit 30 provided by the utility model can detect not only the form and position tolerance of the caliper connecting holes 104 and 105, but also synchronously detect whether the brake caliper mounting surface is out of tolerance or not by utilizing the caliper connecting holes to detect the attaching degree of the table surface of the bedplate 31 and the end surfaces of the caliper connecting holes 104 and 105, because the brake caliper is also an extremely important component, if the brake caliper mounting surface is out of tolerance, the acting force exerted on the brake disc by the brake disc is influenced, and the brake caliper mounting surface not only relates to the braking effect, but also influences the service life of the brake component. After detecting whether the end faces of the caliper connecting holes 104 and 105 are out of tolerance, the shape and the size tolerance can be measured by inserting the caliper connecting hole detecting pin shaft 32 from the caliper connecting holes 104 and 105, if the shape and the size tolerance are qualified, the caliper connecting hole detecting pin shaft continuously moves into the caliper connecting hole detecting hole 311, and if the caliper connecting hole detecting pin shaft is successfully inserted, the position tolerance of the caliper connecting holes 104 and 105 is qualified.
The sliding column connecting hole detection unit 40 comprises a sliding column connecting hole detection plate 41 which is vertically arranged, a sliding column connecting hole detection hole 411 which is parallel to the tangential direction of the pin 20 is formed in the plate surface of the sliding column connecting hole detection plate, the position of the sliding column connecting hole detection hole 411 is consistent with the designed hole core position of the sliding column connecting hole 102 and the designed hole core position of the sliding column connecting hole 103, and the detection section of a sliding column connecting hole detection pin shaft 42 which is matched with the sliding column connecting hole detection hole 411 is consistent with the designed hole diameter of the sliding column connecting hole 102 and the designed hole diameter of the sliding column connecting hole 103.
When the embodiment is used for detection, the front side surface of the sliding column connecting leg 1023 is positioned at the side close to the sliding column connecting hole detection plate 41, and the sliding column connecting hole detection pin shaft 42 is inserted into the sliding column connecting hole detection hole 411 and then inserted into the sliding column connecting holes 102 and 103, so that the form and position tolerance of the sliding column connecting holes 102 and 103 can be detected.
The lower control arm mounting hole detection unit 50 comprises a vertical rod 51 which is vertically arranged, a lower control arm mounting hole detection hole 511 is formed in the vertical rod 51, the position of the lower control arm mounting hole detection hole 511 is consistent with the position of a design hole core of the lower control arm mounting hole 106, and a detection section of a lower control arm mounting hole detection pin 52 matched with the lower control arm mounting hole detection hole 511 is consistent with the design hole diameter of the lower control arm mounting hole 106. During detection, the lower control arm mounting hole 106 and the connecting seat thereof are located on one side, close to the pin 20, of the upright rod 51, the lower control arm mounting hole detection pin 52 is firstly inserted into the control arm mounting hole detection hole 511, and then inserted into the lower control arm mounting hole 106, so that the form and position tolerance of the lower control arm mounting hole 106 can be detected.
The transverse pull rod mounting hole detection unit 60 includes a transverse pull rod mounting hole detection seat 61, on which a transverse pull rod mounting hole detection hole 611 is in accordance with the designed hole core position of the transverse pull rod mounting hole 107, and a detection section of a transverse pull rod mounting hole detection pin 62 fitted with the transverse pull rod mounting hole detection hole 611 is in accordance with the designed hole diameter of the transverse pull rod mounting hole 107. During detection, the detection section of the transverse pull rod mounting hole detection pin 62 may be inserted into the transverse pull rod mounting hole detection hole 611 in advance, and then inserted into the transverse pull rod mounting hole 107 for displacement, so as to detect the form and position tolerance of the transverse pull rod mounting hole 107.
The detection objects are all vehicle safety and control functional components, such as braking, vehicle body control, shock absorption and the like. In addition, the table 10 is provided with wheel speed mounting holes, limit hole detecting units 70, which detect mounting holes of detecting members for detecting a vehicle running state such as a speed. The wheel speed mounting hole/limiting hole detecting unit 70 includes a detecting pin and a detecting hole, and the detecting pin is inserted into the detecting hole and then inserted into the mounting hole/limiting hole waiting detecting hole to detect whether the detecting pin is qualified.
The detection pin shafts and the inner holes of the detection sleeves arranged in the detection holes form axial sliding fit, and the detection sleeves are in threaded connection with the connected plate, table, rod or seat components. As shown in FIG. 4, the threaded hole of the sliding pillar connecting hole detecting hole 411 is engaged with the external threaded section of the detecting sleeve 412, and the lumen of the detecting sleeve 412 is engaged with the sliding pillar connecting hole detecting pin 42. Therefore, the detection sleeve 412 can be processed by selecting a material with a proper material, so that the detection sleeve is low in processing difficulty and excellent in wear resistance, and can be replaced after being used for a period of time.
As shown in fig. 4, each detection pin is in the shape of a stepped shaft, and a detection section with a small diameter is located at one end thereof. Taking the sliding column connecting hole detection pin shaft 42 as an example, the sliding column connecting hole detection pin shaft is in a step shaft shape with a thick middle section and thin two ends, the front section of the sliding column connecting hole detection pin shaft is a detection section and is consistent with the pipe diameter of the detection sleeve 412, when the end surface of the step section reaches the pipe end of the detection sleeve 412, the detection section is inserted into the sliding column connecting holes 102 and 103, and therefore the object to be detected is judged to be qualified.
Since the present invention relates to the detection of a plurality of items, the number of detection pins used is large, which not only easily causes mutual misplugging and affects the detection efficiency, but also easily loses, so that the workbench 10 is provided with the pin socket 80 for accommodating each detection pin. The detection pins are marked, the insertion holes of the pin shaft socket 80 are marked similarly, the corresponding detection pins can be used for detecting corresponding items by combining the marks of the detection positions, and the detection pins are placed back to the positions of the corresponding holes after detection is finished, so that the detection efficiency can be improved.
Claims (9)
1. The utility model provides a rear steering knuckle's utensil of examining, includes workstation (10), its characterized in that: the vertical type brake caliper sliding shaft detection device is characterized in that a vertically arranged pin (20) used for detecting a bearing hole (101) is arranged on the workbench (10), a brake caliper connecting hole detection unit (30), a sliding column connecting hole detection unit (40), a lower control arm mounting hole detection unit (50) and a transverse pull rod mounting hole detection unit (60) are arranged on the table surface of the workbench (10) beside the pin (20), each detection unit comprises a detection hole and a detection pin shaft which forms axial sliding displacement with the detection hole, each detection hole and the designed hole core position of the to-be-detected hole are arranged in the same core mode, and the detection pin shaft and the designed hole diameter of the to-be-detected hole are consistent.
2. The gauge of the rear knuckle according to claim 1, characterized in that: the brake caliper connecting hole detection unit (30) comprises a brake caliper connecting hole detection platen (31), brake caliper connecting hole detection holes (311) with vertically arranged hole cores are formed in the brake caliper connecting hole detection platen (31), the positions of the brake caliper connecting hole detection holes (311) are consistent with the positions of design hole cores of the brake caliper connecting holes (104, 105), and the detection sections of brake caliper connecting hole detection pin shafts (32) matched with the brake caliper connecting hole detection holes (311) are consistent with the design hole diameters of the brake caliper connecting holes (104, 105).
3. The gauge of the rear knuckle according to claim 1, characterized in that: the sliding column connecting hole detection unit (40) comprises a sliding column connecting hole detection plate (41) which is vertically arranged, a sliding column connecting hole detection hole (411) which is parallel to the tangential direction of the pin (20) is arranged on the plate surface of the sliding column connecting hole detection unit, the position of the sliding column connecting hole detection hole (411) is consistent with the design hole core position of the sliding column connecting holes (102, 103),
the detection section of the sliding column connecting hole detection pin shaft (42) matched with the sliding column connecting hole detection hole (411) is consistent with the design apertures of the sliding column connecting holes (102, 103).
4. The gauge of the rear knuckle according to claim 1, characterized in that: the lower control arm mounting hole detection unit (50) comprises a vertical type arranged vertical rod (51), a lower control arm mounting hole detection hole (511) is formed in the vertical rod (51), the lower control arm mounting hole detection hole (511) is consistent with the position of a design hole core of the lower control arm mounting hole (106), and a detection section of a lower control arm mounting hole detection pin shaft (52) matched with the lower control arm mounting hole detection hole (511) is consistent with the design hole diameter of the lower control arm mounting hole (106).
5. The gauge of the rear knuckle according to claim 1, characterized in that: the transverse pull rod mounting hole detection unit (60) comprises a transverse pull rod mounting hole detection seat (61), wherein a transverse pull rod mounting hole detection hole (611) is formed in the transverse pull rod mounting hole detection seat and is consistent with the position of a design hole core of the transverse pull rod mounting hole (107), and a detection section of a transverse pull rod mounting hole detection pin shaft (62) matched with the transverse pull rod mounting hole detection hole (611) is consistent with the design hole diameter of the transverse pull rod mounting hole (107).
6. The gauge of the rear knuckle according to claim 1, characterized in that: the workbench (10) is provided with a wheel speed mounting hole and a limit hole detection unit (70).
7. The gauge of the rear knuckle according to claim 1, 2, 3, 4 or 5, wherein: the detection pin shafts and the inner holes of the detection sleeves arranged in the detection holes form axial sliding fit, and the detection sleeves are in threaded connection with the connected plate, table, rod or seat components.
8. The gauge of the rear knuckle according to claim 1, 2, 3, 4 or 5, wherein: each detection pin shaft is in a step shaft shape, and a detection section with a small diameter is positioned at one end of the detection pin shaft.
9. The gauge of the rear knuckle according to claim 1, 2, 3, 4 or 5, wherein: the workbench (10) is provided with pin shaft sockets (80) for accommodating all the detection pin shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071018.9U CN215766779U (en) | 2021-08-30 | 2021-08-30 | Detection tool for rear steering knuckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071018.9U CN215766779U (en) | 2021-08-30 | 2021-08-30 | Detection tool for rear steering knuckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215766779U true CN215766779U (en) | 2022-02-08 |
Family
ID=80082003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122071018.9U Active CN215766779U (en) | 2021-08-30 | 2021-08-30 | Detection tool for rear steering knuckle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215766779U (en) |
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2021
- 2021-08-30 CN CN202122071018.9U patent/CN215766779U/en active Active
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