CN202692924U - Eccentricity detecting device for front spiral spring of automobile - Google Patents
Eccentricity detecting device for front spiral spring of automobile Download PDFInfo
- Publication number
- CN202692924U CN202692924U CN 201220282547 CN201220282547U CN202692924U CN 202692924 U CN202692924 U CN 202692924U CN 201220282547 CN201220282547 CN 201220282547 CN 201220282547 U CN201220282547 U CN 201220282547U CN 202692924 U CN202692924 U CN 202692924U
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- coil spring
- mandrel
- front coil
- detection bodies
- bottom seat
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an eccentricity detecting device for a front spiral spring of automobile, and aims at providing the eccentricity detecting device for the front spiral spring of an automobile, wherein the detecting device has high positioning reference accuracy when detecting the eccentric distance of the spring. The detecting device comprises a pedestal case, a big-end pedestal, a mandrel and a detecting body, wherein the pedestal case is circular; the big-end pedestal is arranged inside the pedestal case; a hole for installing the mandrel is formed in the centre of the big-end pedestal; a rail identical to the big-end spiral lift of the front spiral spring is arranged around the big-end pedestal; the detecting body is columnar; the hole for installing the mandrel is formed in the detecting body; and two ends of the mandrel are respectively connected with the big-end pedestal and the detecting body. The eccentricity detecting device provided by the utility model has advantages as follows: the positioning reference accuracy of the front spiral spring is high when the eccentric distance is detected, the eccentric size and the direction of the front spiral spring can be precisely detected so that the qualification rate of products is increased, and the structure is simple.
Description
Technical field
The utility model relates to a kind of automobile detection apparatus, especially relates to a kind of automobile front coil spring Accentric detector.
Background technology
Generally, the eccentric throw of front coil spring is measured the method that adopts: spring freely is placed on the bumper spring pallet, load onto columniform detection bodies at the screw rod of shock absorber piston club head, allow detection bodies be in spring small end inner diameter location, size with measurer (such as vernier caliper) measurement detection bodies component holes and spring small end external diameter can calculate spring small end circle eccentric throw value.Existing method is to use the front damper spring lower seat as positioning datum, spring lower seat itself just has foozle, the precision of benchmark is not high, and piston rod and front damper liquid storage cylinder right alignment and liquid storage cylinder and spring lower seat verticality have larger cumulative errors, therefore global error is bigger than normal, and measurement result is easy to depart from actual true value.
Chinese patent Granted publication number: CN 201554818U, Granted publication day is on August 18th, 2010, the improvement structure of a kind of shock absorber piston rod bearing and upper spring pallet is disclosed, comprise bearing and upper spring pallet, described upper spring pallet central authorities are provided with the upper spring pallet hole that cooperates with piston rod, bearing is arranged at the upper spring pallet top, the bearing bottom surface cooperates with the bearings face contact on upper spring pallet top, described bearing is provided with the shading ring of annular in bottom surface axis hole opening part, described bearings face is the planar annular step, and described shading ring cooperates with the upper spring pallet interporal lacuna.The weak point of this utility model is, uses the front damper spring tray as positioning datum, and spring tray itself just has foozle, and the precision of benchmark is not high, causes measurement result to be easy to depart from actual true value.
The utility model content
The utility model is the not high problem of positioning datum precision in order to overcome prior art medi-spring eccentric throw and to detect, the high automobile front coil spring Accentric detector of positioning datum precision when providing a kind of spring eccentric throw to detect.
To achieve these goals, the utility model is by the following technical solutions:
A kind of automobile front coil spring Accentric detector of the present utility model, comprise base sheath, large bottom seat, mandrel and detection bodies, described base sheath is rounded, described large bottom seat is placed in the base sheath, seat center, described large bottom is provided with for the hole that mandrel is installed, be provided with the track consistent with the large end spiral lift of front coil spring around the seat of described large bottom, described detection bodies is cylindric, described detection bodies is provided with for the hole that mandrel is installed, and described mandrel two ends connect respectively large bottom seat and detection bodies.
Described base sheath is rounded, and described large bottom seat is placed in the base sheath, and described large bottom seat is fixed on base sheath inside.Seat center, described large bottom is provided with for the hole that mandrel is installed, be provided with the track consistent with the large end spiral lift of front coil spring around the seat of described large bottom, with the main positioning datum of the spiral lift on the seat of large bottom as front coil spring, effectively raise the precision of positioning datum.Described detection bodies is cylindric, described detection bodies is provided with for the hole that mandrel is installed, and described mandrel two ends connect respectively large bottom seat and detection bodies, and the small end of front coil spring is enclosed within the side of detection bodies, and all there is the gap all around, is used for measuring the eccentric throw of front coil spring.Front coil spring high requirement of positioning datum precision when eccentric throw detects has been satisfied in design like this.
As preferably, the internal diameter of described base sheath equals the large end race diameter of front coil spring, and the precision of positioning datum can further be improved take the base sheath internal diameter as auxiliary positioning in the large end outer ring of front coil spring.
As preferably, separate with the axle center of detection bodies in the axle center that is used for the hole of installation mandrel on the described detection bodies, like this design so that around the detection bodies with small end 0.6 circle of front coil spring in around the gap even, only need the measurement clearance distance just can judge that whether qualified front coil spring is.
As preferably, the distance of shaft centers of the axle center in hole of mandrel and detection bodies be used for to be installed from being 5 ± 0.1mm on the described detection bodies, because it is eccentric for 4mm ~ 6mm, so choose this numerical value so that the detection of front coil spring with respect to large end circle that the front coil spring eccentric throw is defined as the small end circle.
As preferably, described mandrel and large bottom seat interference fit adopt the interference fit can be so that device fixes mandrel according to the front coil spring eccentric direction when assembling.
As preferably, described mandrel is threaded with detection bodies, is threaded connection the intensity that can increase this device, reduces the error of this device.
As preferably, the diameter of described detection bodies is less than the small end inner ring diameter of front coil spring, be convenient to small end with front coil spring place detection bodies around, convenient detection to front coil spring.
As preferably, the upper end of described large bottom seat is provided with a scalariform table top, and design is convenient to front coil spring is installed on the seat of large bottom like this.
The beneficial effects of the utility model are: the positioning datum precision was high when front coil spring detected in eccentric throw, can accurately detect eccentric throw size and the direction of front coil spring, thereby improved the qualification rate of product, and apparatus structure is simple, and is easy to operate.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure: 1. base sheath, 2. large bottom seat, 3. mandrel, 4. detection piece.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Among the embodiment as shown in Figure 1, a kind of automobile front coil spring Accentric detector, comprise base sheath 1, large bottom seat 2, mandrel 3 and detection bodies 4, described base sheath 1 is rounded, described large bottom seat 2 is cylindrical, described large bottom seat 2 diameters equal the internal diameter of base sheath 1, and described large bottom seat 2 is placed in the base sheath 1.Seat 2 centers, described large bottom are provided with for the hole that mandrel 3 is installed, and are provided with the track consistent with the large end spiral lift of front coil spring around the described large bottom seat 2, and seat 2 upper ends, described large bottom are provided with a scalariform table top.Described detection bodies 4 is cylindric, and described detection bodies 4 is provided with for the hole that mandrel 3 is installed, and described mandrel 3 two ends connect respectively large bottom seat 2 and detection bodies 4.The internal diameter of described base sheath 1 equals the large end race diameter of front coil spring.The axle center in the hole of mandrel 3 be used for to be installed on the described detection bodies 4 to separate with the axle center of detection bodies 4, be used for installing the distance of shaft centers of the axle center in hole of mandrel 3 and detection bodies 4 on the described detection bodies 4 from being 5 ± 0.1mm.Described mandrel 3 and large bottom seat 2 interference fit, described mandrel 3 is threaded with detection bodies 4.The diameter of described detection bodies 4 is less than the small end inner ring diameter of front coil spring.
Use the large bottom seat 2 consistent with the large end spiral lift of front coil spring, the large end of front coil spring with the lift on the great circle base 2 as main positioning datum, the large end of front coil spring outer ring is take the internal diameter of base sheath 1 as the auxiliary positioning benchmark, adopt the large end lifting curve of front coil spring and outer ring jointly to locate, not only improved the reference precision of frock, also eliminated front coil spring is subjected to the aspect such as verticality when detecting adverse effect, make economic, reliable being suitable for, can effectively guarantee front coil spring eccentricity detecting precision.When mandrel 3 is installed, on large bottom seat 2 take the spring head of the large end of front coil spring as benchmark, with to 180 ° of directions skew 5 ± 0.1mm for requiring installation mandrel 3.Mandrel 3 lower ends are contained on the great circle base 2 with interference fit, and mandrel 3 upper ends are assemblied on the detection bodies 4 with thread connecting mode.Front coil spring is placed on this device, answers the gap even all around with small end 0.6 circle of front coil spring is interior around the detection bodies 4, it is qualified to be considered as eccentric throw with the vernier caliper measurement gap between 0.1-1.1mm, otherwise eccentric defective.Extreme value size according to the front coil spring eccentric throw can design the detection bodies 4 that replaces to two extreme positions, decision method is up to the standards: when detection bodies 4 was in front coil spring small end inner diameter location, the detection bodies 4 of two limit positions all must not interfere with front coil spring small end internal diameter.
Claims (8)
1. automobile front coil spring Accentric detector, it is characterized in that, comprise base sheath (1), large bottom seat (2), mandrel (3) and detection bodies (4), described base sheath (1) is rounded, described large bottom seat (2) is placed in the base sheath (1), described large bottom seat (2) center is provided with for the hole that mandrel (3) is installed, described large bottom seat (2) is provided with the track consistent with the large end spiral lift of front coil spring all around, described detection bodies (4) is cylindric, described detection bodies (4) is provided with for the hole that mandrel (3) is installed, and described mandrel (3) two ends connect respectively large bottom seat (2) and detection bodies (4).
2. automobile front coil spring Accentric detector according to claim 1 is characterized in that, the internal diameter of described base sheath (1) equals the large end race diameter of front coil spring.
3. automobile front coil spring Accentric detector according to claim 1 and 2 is characterized in that, separate with the axle center of detection bodies (4) in the upper axle center that is used for the hole of installation mandrel (3) of described detection bodies (4).
4. automobile front coil spring Accentric detector according to claim 3 is characterized in that, the axle center in the upper hole for mandrel (3) is installed of described detection bodies (4) and the distance of shaft centers of detection bodies (4) are from being 5 ± 0.1mm.
5. automobile front coil spring Accentric detector according to claim 1 and 2 is characterized in that, described mandrel (3) and large bottom seat (2) interference fit.
6. automobile front coil spring Accentric detector according to claim 1 and 2 is characterized in that, described mandrel (3) is threaded with detection bodies (4).
7. automobile front coil spring Accentric detector according to claim 1 and 2 is characterized in that, the diameter of described detection bodies (4) is less than the small end inner ring diameter of front coil spring.
8. automobile front coil spring Accentric detector according to claim 1 is characterized in that, the upper end of described large bottom seat (2) is provided with a scalariform table top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282547 CN202692924U (en) | 2012-06-13 | 2012-06-13 | Eccentricity detecting device for front spiral spring of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282547 CN202692924U (en) | 2012-06-13 | 2012-06-13 | Eccentricity detecting device for front spiral spring of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692924U true CN202692924U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282547 Expired - Fee Related CN202692924U (en) | 2012-06-13 | 2012-06-13 | Eccentricity detecting device for front spiral spring of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355797A (en) * | 2022-08-11 | 2022-11-18 | 哈电集团哈尔滨电站阀门有限公司 | Device and method for testing offset of safety valve spring |
-
2012
- 2012-06-13 CN CN 201220282547 patent/CN202692924U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355797A (en) * | 2022-08-11 | 2022-11-18 | 哈电集团哈尔滨电站阀门有限公司 | Device and method for testing offset of safety valve spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180613 |