CN217654457U - Spline coaxiality detection device - Google Patents

Abstract

The utility model discloses a spline axiality detection device relates to the automobile steering technical field, and input shaft one end is equipped with first centre bore, and the input shaft other end is equipped with external splines, ring gage assembly and external splines cooperation, and output shaft one end is equipped with the second centre bore, and the right-hand member of output shaft is equipped with internal splines, and the plug gage cooperates with internal splines, and the symmetry is equipped with the top on the deflection appearance, detects the time, and one of them top leans on with first centre bore counterbalance, and another top leans on with the ring gage assembly counterbalance, and the micrometer detects the run-out error of ring gage assembly department; or one of the center points abuts against the second center hole, the other center point abuts against the plug gauge assembly, and the dial indicator detects the jumping error at the plug gauge assembly. The coaxiality of the external spline and the input shaft and the coaxiality of the internal spline and the output shaft can be checked, so that the test device is simple and convenient to operate and low in cost.

Description

Spline coaxiality detection device

Technical Field

The utility model relates to an auto steering technical field, concretely relates to spline axiality detection device.

Background

The general design method of the electro-hydraulic steering gear is that an input shaft of the hydraulic steering gear is connected with an output shaft of an electric control part through an internal spline and an external spline, and then the electric control part is fixed on the hydraulic steering gear through a bolt.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The axiality to input shaft and external splines, output shaft and internal spline has higher requirement technical problem, the utility model provides a spline axiality detection device, it can inspect the axiality of external splines and input shaft, and the axiality of internal spline and output shaft is not only easy and simple to handle, and low cost.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does: a spline coaxiality detection device comprises a deflection instrument, an input shaft, an output shaft, a dial indicator, a ring gauge assembly and a plug gauge assembly, wherein a first central hole is formed in one end of the input shaft, an external spline is formed in the other end of the input shaft, the ring gauge assembly is matched with the external spline, a second central hole is formed in one end of the output shaft, an internal spline is formed in the right end of the output shaft, the plug gauge is matched with the internal spline, tips are symmetrically arranged on the deflection instrument, one tip abuts against the first central hole and the other tip abuts against the ring gauge assembly during detection, and the dial indicator detects the runout error of the ring gauge assembly; or one of the center points abuts against the second center hole, the other center point abuts against the plug gauge assembly, and the dial indicator detects the jumping error at the plug gauge assembly.

Optionally, the ring gauge assembly includes a no-go end ring gauge and a plurality of lead to end ring gauges, and is a plurality of the internal diameter of lead to end ring gauge evenly decreases in proper order.

Optionally, the plug gauge assembly includes no-go end plug gauge and a plurality of lead to end plug gauge, and is a plurality of the internal diameter of lead to end plug gauge evenly decreases in proper order.

Optionally, the ring gauge assembly includes a detection section and a gripping section, a step is provided between the detection section and the gripping section, the outer peripheral surface of the detection section is a first optical axis, the outer peripheral surface of the gripping section is provided with a knurl, the inner peripheral surface of the detection section is provided with a first spline, and the first spline is matched with the outer spline.

Optionally, one end of the input shaft, which is far away from the external spline, is provided with a first outer circle, and the first outer circle is positioned by a first central hole in the input shaft.

Optionally, one end of the output shaft, which is far away from the internal spline, is provided with a second outer circle, and the second outer circle is positioned by a second central hole on the input shaft.

Optionally, the deflection instrument includes a support base, a first detection base, a second detection base and an upright rod, the first detection base and the second detection base are both slidably disposed on the support base, one of the apexes is mounted on the first detection base, the other apex is mounted on the second detection base, the dial indicator is mounted on the upright rod, and the upright rod is disposed between the first detection base and the second detection base.

Optionally, both ends of the plug gauge assembly are provided with third center holes, the outer peripheral surface of one end of the plug gauge assembly is provided with a second spline, the second spline is matched with the inner spline, the outer peripheral surface of the other end of the plug gauge assembly is provided with knurls, and a second optical axis is arranged between both ends of the plug gauge assembly.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) The embodiment of the application provides a spline axiality detection device, during the test, manual rotatory ring gage assembly a week or plug gauge assembly a week, the pendulum error on the amesdial is exactly the run-out error of work piece, the run-out error is bigger, the outer spline that represents the input shaft and the axiality of first centre bore are lower, the inner spline of output shaft and the axiality of second centre bore are lower, the run-out error is smaller, the outer spline that represents the input shaft and the axiality of first centre bore are higher, the inner spline of output shaft and the axiality of second centre bore are higher, can inspect the axiality of outer spline and input shaft, the axiality of inner spline and output shaft, and is easy and simple to handle, and low cost.

(2) According to the spline coaxiality detection device provided by the embodiment of the application, during specific operation, firstly, a spline size of an external spline is checked by using a dead-end ring gauge and a maximum through-end ring gauge, on the premise that the size is qualified, then, a through-end ring gauge which is most tightly matched with the external spline is found to be matched with the external spline, then, the matched external spline and the through-end ring gauge are installed on a deflection instrument together, and finally, a dial indicator is used for measuring a run-out error at the optical axis of the ring gauge; the spline size of the internal spline is checked by using the end stop plug gauge and the smallest through end plug gauge, on the premise that the size is qualified, the through end plug gauge which is the tightest to be matched with the internal spline is found to be matched with the internal spline, then the matched internal spline and the through end plug gauge are installed on the deflection instrument together, and finally the run-out error of the optical axis of the through end plug gauge is measured by using a dial gauge.

Drawings

Fig. 1 is a schematic diagram of the spline coaxiality detecting device provided by the embodiment of the utility model for detecting the input shaft and the external spline.

Fig. 2 is a schematic diagram of the spline coaxiality detecting device provided by the embodiment of the utility model for detecting the output shaft and the internal spline. .

Fig. 3 is a schematic diagram of a ring gauge assembly of a spline coaxiality detection apparatus according to an embodiment of the present invention.

Fig. 4 is a schematic view of an input shaft of a spline coaxiality detection device according to an embodiment of the present invention.

Fig. 5 is a schematic view of a plug gauge assembly of the spline coaxiality detection apparatus according to an embodiment of the present invention.

Fig. 6 is a schematic view of an output shaft of the spline coaxiality detection apparatus according to an embodiment of the present invention.

The labels in the various figures are: 1. a yaw meter; 11. a support base; 12. a first detection seat; 13. a second detection seat; 14. erecting a rod; 15. a tip; 2. an input shaft; 21. a first central aperture; 22. an external spline; 3. an output shaft; 31. a second central aperture; 32. an internal spline; 4. a dial indicator; 5. a ring gauge assembly; 51. a detection section; 511. a first optical axis; 512. a first spline; 52. a gripping section; 53. a step; 6. a plug gauge assembly; 61. a third central aperture; 62. a second optical axis; 63. a second spline.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to fig. 1-6, the spline coaxiality detection device of the present embodiment includes a yaw meter 1, an input shaft 2, an output shaft 3, a dial gauge 4, a ring gauge assembly 5 and a plug gauge assembly 6, wherein one end of the input shaft 2 is provided with a first center hole 21, the other end of the input shaft 2 is provided with an external spline 22, the ring gauge assembly 5 is matched with the external spline 22, one end of the output shaft 3 is provided with a second center hole 31, the right end of the output shaft 3 is provided with an internal spline 32, the plug gauge is matched with the internal spline 32, the yaw meter 1 is symmetrically provided with apexes 15, when detecting, one of the apexes 15 abuts against the first center hole 21, the other apex 15 abuts against the ring gauge assembly 5, and the dial gauge 4 detects a run-out error at the position of the ring gauge assembly 5; or one of the center points 15 abuts against the second center hole 31, the other center point 15 abuts against the plug gauge assembly 6, and the dial indicator 4 detects a run-out error at the plug gauge assembly 6. During testing, the ring gauge assembly 5 or the plug gauge assembly 6 is manually rotated for one circle, the swing error on the dial indicator 4 is the jumping error of a workpiece, the larger the jumping error is, the lower the coaxiality of the external spline 22 of the input shaft 2 and the first center hole 21 is shown, the lower the coaxiality of the internal spline 32 of the output shaft 3 and the second center hole 31 is, the smaller the jumping error is, the higher the coaxiality of the external spline 22 of the input shaft 2 and the first center hole 21 is shown, the higher the coaxiality of the internal spline 32 of the output shaft 3 and the second center hole 31 is shown, the coaxiality of the external spline 22 and the input shaft 2 can be tested, and the coaxiality of the internal spline 32 and the output shaft 3 is not only simple and convenient to operate, but also low in cost.

Example 2

With reference to fig. 1 to 6, compared with the technical solution of embodiment 1, the spline coaxiality detection apparatus of this embodiment can be improved as follows: the ring gauge assembly 5 comprises a non-end ring gauge and a plurality of through-end ring gauges, and the inner diameters of the through-end ring gauges are sequentially and uniformly decreased progressively. For example, if the tolerance band of the input shaft 2 is 0.05, then one stop ring gauge and five through ring gauges can be designed, with the difference in diameter between two adjacent through ring gauges being 0.01. During specific operation, firstly, the spline size of the external spline 22 is checked by using a non-stop end ring gauge and a maximum through end ring gauge, on the premise that the size is qualified, then, a through end ring gauge which is most tightly matched with the external spline 22 is found to be matched with the external spline, then, the matched external spline 22 and the through end ring gauge are installed on the deflection instrument 1 together, and finally, the jitter error of the optical axis of the ring gauge is measured by using a dial indicator 4.

Example 3

With reference to fig. 1-6, compared with the technical solutions of embodiment 1 or 2, the spline coaxiality detection apparatus of this embodiment can be improved as follows: the plug gauge assembly 6 comprises a dead end plug gauge and a plurality of through end plug gauges, and the inner diameters of the through end plug gauges are sequentially and uniformly decreased progressively. For example, if the tolerance band of the output shaft 3 is 0.05, then one end stop gauge and five end through gauges can be designed, and the diameter difference between two adjacent end through gauges is 0.01. During specific operation, firstly, a spline size of the internal spline 32 is checked by using a stop end plug gauge and a minimum through end plug gauge, on the premise that the size is qualified, then, a through end plug gauge which is most tightly matched with the internal spline 32 is found to be matched with the internal spline, then, the matched internal spline 32 and the through end plug gauge are installed on the deflection instrument 1 together, and finally, a jitter error at the optical axis of the through end plug gauge is measured by using a dial gauge 4.

Example 4

With reference to fig. 1 to 6, compared with any of the technical solutions of embodiments 1 to 3, the spline coaxiality detecting apparatus of the present embodiment can be improved as follows: the ring gauge assembly 5 comprises a detection section 51 and a gripping section 52, a step 53 is arranged between the detection section 51 and the gripping section 52, the outer peripheral surface of the detection section 51 is a first optical axis 511, the outer peripheral surface of the gripping section 52 is provided with a knurl, the inner peripheral surface of the detection section 51 is provided with a first spline 512, and the first spline 512 is matched with the outer spline 22. The step 53 is used for separating the detection section 51 from the gripping section 52, the detection section 51 requires high surface roughness and high coaxiality and high requirements for the first central hole 21, and the gripping section 52 is convenient for workers to detect and take the detection tool and only needs knurling. The gripping section 52 is manually rotated for one circle, and the swing error on the dial indicator 4 is the jumping error of the workpiece. During detection, the dial gauge 4 measures the jitter at the first optical axis 511.

Example 5

With reference to fig. 1 to 6, compared with any one of the technical solutions of embodiments 1 to 4, the spline coaxiality detecting apparatus of this embodiment can be improved as follows: one end of the input shaft 2, which is far away from the external spline 22, is provided with a first external circle, which is positioned by a first central hole 21 on the input shaft 2. The first centre hole 21 is held fast by the centre point 15 during grinding of the first outer circle, which ensures that the first centre hole 21 and the first outer circle are coaxial.

Example 6

With reference to fig. 1 to 6, compared with any of the technical solutions of embodiments 1 to 5, the spline coaxiality detecting apparatus of this embodiment can be improved as follows: the end of the output shaft 3 remote from the internal spline 32 is provided with a second outer circle, which is positioned by a second central hole 31 in the input shaft 2. The second centre hole 31 is held fast by the centre point 15 during grinding of the second outer circle, which ensures that the second centre hole 31 is coaxial with the second outer circle.

Example 7

With reference to fig. 1 to 6, compared with any of the technical solutions of embodiments 1 to 6, the spline coaxiality detecting apparatus of the present embodiment can be improved as follows: the deflection instrument 1 comprises a support base 11, a first detection base 12, a second detection base 13 and an upright rod 14, wherein the first detection base 12 and the second detection base 13 are arranged on a support base in a sliding mode, one tip 15 is arranged on the first detection base 12, the other tip 15 is arranged on the second detection base 13, the dial indicator 4 is arranged on the upright rod 14, and the upright rod 14 is arranged between the first detection base 12 and the second detection base 13. The first detection seat 12 and the second detection seat 13 can move relative to the supporting seat, so that the detection of the through end ring gauge or the through end plug gauge by the dial indicator 4 is facilitated. Or the upright 14 is slidably arranged on the bracket base 11.

Example 8

With reference to fig. 1 to 6, compared with any of the technical solutions of embodiments 1 to 7, the spline coaxiality detecting apparatus of the present embodiment can be improved as follows: the plug gauge assembly 6 both ends all are equipped with third centre bore 61, the outer peripheral face of one end of plug gauge assembly 6 is equipped with second spline 63, second spline 63 and the cooperation of internal spline 32, the outer peripheral face of the other end of plug gauge assembly 6 is equipped with the annular knurl, is second optical axis 62 between the 6 both ends of plug gauge assembly. The design of the through end plug gauge is shown in fig. 4, the middle section is an optical axis with the roughness smaller than 0.4 of the R spline coaxiality detection device, the coaxiality and the spline pitch diameter are smaller than 0.005, the two ends are respectively provided with a second spline 63 and a knurl, the two end faces of the plug gauge are provided with a third center hole 61, and the coaxiality of the third center hole 61, the second optical axis 62 and the pitch diameter of the second spline 63 is smaller than 0.005. The second spline 63 is used for detecting the inner spline 32, knurling is convenient to grasp, and during detection, the dial indicator 4 measures jumping at the second optical axis 62.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (8)

1. A spline coaxiality detection device is characterized by comprising a deflection instrument, an input shaft, an output shaft, a dial gauge, a ring gauge assembly and a plug gauge assembly, wherein a first central hole is formed in one end of the input shaft, an external spline is formed in the other end of the input shaft, the ring gauge assembly is matched with the external spline, a second central hole is formed in one end of the output shaft, an internal spline is formed in the right end of the output shaft, the plug gauge is matched with the internal spline, tips are symmetrically arranged on the deflection instrument, one tip abuts against the first central hole and the other tip abuts against the ring gauge assembly during detection, and the dial gauge detects a jumping error at the ring gauge assembly; or one of the center points abuts against the second center hole, the other center point abuts against the plug gauge assembly, and the dial indicator detects the jumping error at the plug gauge assembly.

2. The spline coaxiality detection apparatus according to claim 1, wherein the ring gauge assembly includes a no-end ring gauge and a plurality of through-end ring gauges, and inner diameters of the plurality of through-end ring gauges are sequentially and uniformly decreased.

3. The spline coaxiality detection apparatus according to claim 1, wherein the plug gauge assembly includes a no-end plug gauge and a plurality of through-end plug gauges, and inner diameters of the plurality of through-end plug gauges are sequentially and uniformly decreased.

4. The spline coaxiality detection device according to claim 1, wherein the ring gauge assembly comprises a detection section and a gripping section, a step is arranged between the detection section and the gripping section, the outer peripheral surface of the detection section is provided with a first optical axis, the outer peripheral surface of the gripping section is provided with knurls, the inner peripheral surface of the detection section is provided with a first spline, and the first spline is matched with the outer spline.

5. The spline coaxiality detection device of claim 1, wherein an end of the input shaft remote from the external splines is provided with a first outer circle, and the first outer circle is positioned by a first central hole in the input shaft.

6. The spline coaxiality detection apparatus according to claim 1, wherein an end of the output shaft remote from the internal spline is provided with a second outer circle, and the second outer circle is positioned by a second central hole in the input shaft.

7. The spline coaxiality detection device according to claim 1, wherein the yaw meter comprises a support base, a first detection base, a second detection base and a vertical rod, the first detection base and the second detection base are arranged on the support base in a sliding mode, one of the apexes is arranged on the first detection base, the other apex is arranged on the second detection base, the dial indicator is arranged on the vertical rod, and the vertical rod is arranged between the first detection base and the second detection base.

8. The spline coaxiality detection device according to claim 1, wherein the plug gauge assembly is provided with third central holes at two ends, the outer peripheral surface of one end of the plug gauge assembly is provided with a second spline, the second spline is matched with the inner spline, the outer peripheral surface of the other end of the plug gauge assembly is provided with knurling, and a second optical axis is arranged between the two ends of the plug gauge assembly.

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