CN214620934U - Detection tool for detecting position degree of combined annular teeth - Google Patents
Detection tool for detecting position degree of combined annular teeth Download PDFInfo
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- CN214620934U CN214620934U CN202120893824.1U CN202120893824U CN214620934U CN 214620934 U CN214620934 U CN 214620934U CN 202120893824 U CN202120893824 U CN 202120893824U CN 214620934 U CN214620934 U CN 214620934U
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Abstract
The utility model relates to an inspection device for detecting the position degree of a combined ring surface tooth, which comprises a base, wherein a meter frame and a positioning shaft core are fixed on the base, the positioning shaft core comprises a first optical shaft section, a positioning spline shaft section and a positioning shaft section which are sequentially arranged from top to bottom, a standard external spline is arranged on the positioning spline shaft section, a combined ring standard component is sleeved on the positioning shaft section, and the combined ring standard component is in clearance fit with the positioning shaft section; the dial indicator is arranged at the top of the gauge stand; the dial gauge further comprises a horizontal extending arm, one end of the horizontal extending arm is fixedly connected with the outer cylindrical surface of the combination ring standard component, and the other end of the horizontal extending arm extends to the position of a measuring head of the dial gauge. Compared with the prior art, the utility model, installation and location simple structure, detection method is simple and convenient, and detection efficiency is high.
Description
Technical Field
The utility model relates to a detection device field specifically says, relates to an examine utensil of detecting combination ring face tooth position degree.
Background
Three-in-one (gear box, electric motor, frequency converter) electric drive system is usually provided in the new energy pure electric vehicle. As shown in fig. 1-3, which are schematic structural diagrams of a combined ring in an existing electrically-driven gear box, the combined ring has high requirements on balance precision due to high-speed operation of the combined ring, and the requirements on the position degree of two sides of a corresponding face tooth are high, so that the combined ring part belongs to a safety part.
At present, in the trial production or small-batch production process, the means applied when measuring the position degree is mainly three-coordinate measurement, specifically, the end face of the combination ring is provided with a plurality of uniformly distributed face teeth 101, one side face B of the face teeth on the process has a specific position degree requirement so as to control the position of the face teeth relative to the inner hole straight taper spline 102, and the other side A of the face teeth has a specific position degree requirement so as to control the tooth thickness of the face teeth. The product is measured by three coordinates from trial production to small-batch production, the measurement period is long, the position is the key size, the measurement frequency is high, the three-coordinate measurement is inconvenient in the large-batch production, and the detection cost is high.
SUMMERY OF THE UTILITY MODEL
The application provides a gauge device for detecting the position degree of the combined annular tooth, aiming at the problems that the three-coordinate measurement of the position degree of the combined annular tooth wastes time and is low in efficiency.
The technical scheme of the application is as follows: a gauge for detecting the tooth position degree of a combined ring surface comprises a base, wherein a gauge stand and a positioning shaft core are fixed on the base, the positioning shaft core comprises a first optical shaft section, a positioning spline shaft section and a positioning shaft section which are sequentially arranged from top to bottom, a standard external spline is arranged on the positioning spline shaft section, a combined ring standard part is sleeved on the positioning shaft section, and the combined ring standard part is in clearance fit with the positioning shaft section; the dial indicator is arranged at the top of the gauge stand; the dial gauge further comprises a horizontal extending arm, one end of the horizontal extending arm is fixedly connected with the outer cylindrical surface of the combination ring standard component, and the other end of the horizontal extending arm extends to the position of a measuring head of the dial gauge.
Optionally, the positioning core further includes a supporting shaft section and a second optical shaft section, the supporting shaft section is located below the positioning shaft section, the second optical shaft section is located below the supporting shaft section, and the second optical shaft section is connected to the base; the diameter of the supporting shaft section is larger than that of the positioning shaft section, and the supporting shaft section is used for supporting the standard part of the combination ring below the positioning shaft section.
Optionally, the dial indicator is transversely inserted into the axial center of the top end of the meter frame.
Optionally, the inner bore of the coupling ring standard is smooth.
Compared with the prior art, the method has the following positive effects:
1. according to the requirement of a position gauge, the surface teeth in the standard component of the combined ring are designed and manufactured, the position degree of two side surfaces of the surface teeth of the combined ring is measured under the positioning condition, the mounting and positioning structure is simple, the detection method is simple and convenient, no special requirement is required on the detection condition, and the combined ring is suitable for being matched and used in a production field;
2. as long as the face teeth of the standard part of the combination ring can be meshed with the face teeth of the combination ring to be detected, the position degree of the side B of the face teeth of the combination ring to be detected is qualified;
3. when the position degree of the other side surface of the combined ring surface tooth to be detected is measured, a quantitative detection result can be obtained, the detection efficiency is high, and the detection cost is low;
4. the measured micro backlash between the face teeth is amplified by the stretching arm and then is expressed by percentage, the indicated value can be simply converted to obtain an actual backlash value, namely the deviation value of the position degree of the other side of the combined ring face tooth to be measured, the detection result is objective, and the detection precision is high.
Drawings
FIG. 1 is a schematic plan view of a coupling ring in a conventional electric drive gearbox;
FIG. 2 is a schematic view of the cross-sectional structure W-W of FIG. 1;
FIG. 3 is a schematic perspective view of a coupling ring in a conventional electric-driven gearbox;
FIG. 4 is a diagram showing a state of the detecting tool for detecting the position of the combined ring gear according to the present invention;
FIG. 5 is a top view of FIG. 4;
in the figure: the device comprises a positioning shaft core 1, a first optical shaft section 1.1, a positioning spline shaft section 1.2, a positioning shaft section 1.3, a supporting shaft section 1.4, a second optical shaft section 1.5, a to-be-detected combination ring 2, a combination ring standard component 3, a gauge stand 4, a measuring rod 5, a stretching arm 6, a base 7, a face tooth 101 and a straight taper spline 102.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Embodiment 1, the utility model provides an examine utensil of detection combination ring face tooth position degree, see fig. 4 and fig. 5, including base 7, be fixed with table frame 4 and location axle core 1 on the base, the location axle core includes first smooth axial segment 1.1, location spline axial segment 1.2, location axial segment 1.3, support axial segment 1.4 and second smooth axial segment 1.5 that set gradually from top to bottom, be provided with standard external splines on the location spline axial segment for with the internal spline cooperation of the combination ring that awaits measuring, the cover is equipped with combination ring standard 3 on the location axial segment, combination ring standard with location axial segment clearance fit; the diameter of the supporting shaft section is larger than that of the positioning shaft section, the supporting shaft section is used for supporting and limiting the pair of combined ring standard parts below the supporting shaft section, a dial indicator 5 is installed at the top of the meter frame, and generally, the dial indicator is transversely inserted into the axial center of the top end of the meter frame 4; the gauge also comprises a horizontal extending arm 6, one end of the horizontal extending arm is fixedly connected with the outer cylindrical surface of the combination ring standard component 3, and the other end of the horizontal extending arm extends to the position of a measuring head of the dial indicator 5.
In fig. 4, L1 is the pitch circle diameter of the middle point of the tooth of the coupling ring surface to be measured; l2 is the distance between the axial center line of the watch frame 4 and the center line of the to-be-tested coupling ring 2.
The specific measurement operation steps of the gauge for detecting the position degree of the combined annular teeth are as follows:
step 1, placing the checking fixture device on a horizontal workbench;
step 2, a combined ring standard part 3 is installed on the positioning mandrel 1, an inner hole is in clearance fit with the positioning shaft section, a horizontal extending arm 6 fixedly connected with the combined ring standard part 3 extends to the direction of the dial indicator 5, and a measuring head which leans against the dial indicator 5 rotates;
step 3, a to-be-tested combination ring 2 is installed on the positioning mandrel 1, an internal spline of the to-be-tested combination ring is in clearance fit with an external spline of a shaft section of the positioning spline, the external spline of the shaft section of the positioning spline is positioned along the circumferential direction, the to-be-tested combination ring is fixed and does not move, and the to-be-tested combination ring can slide along the external spline in the axial direction;
and 4, manually rotating the standard coupling ring component 3 to enable the face teeth of the coupling ring 2 to be tested to be embedded into the tooth grooves of the face teeth of the standard coupling ring component 3. If the face teeth of the to-be-detected combination ring 2 and the combination ring standard component 3 can be meshed, the position degree of the side face B of the face teeth of the to-be-detected combination ring 2 is qualified, otherwise, the position degree is unqualified;
step 5, manually and lightly screwing the combination ring standard part 3 to enable the surface teeth of the combination ring standard part 3 to be tightly attached to one side of the surface teeth of the combination ring 2 to be detected, adjusting the position of a measuring head of the dial indicator 5 to enable the measuring head to be supported to the stretching arm 6, and carrying out zero setting operation of the dial indicator;
and 6, manually reversely and slightly rotating the standard part 3 of the coupling ring in a reverse direction to enable the surface teeth of the standard part 3 of the coupling ring to be tightly attached to the other side of the surface teeth of the coupling ring 2 to be detected, and observing the indicating value of the pointer of the dial indicator.
Because the amount of the side clearance between the surface tooth of the to-be-detected combined ring and the surface tooth of the standard component of the combined ring is very small, the measured small side clearance is amplified by the stretching arm 6 and then is indicated by the dial indicator 5, and the indicated value is simply converted to obtain an actual side clearance value, namely a position degree deviation value of the other side of the surface tooth of the to-be-detected combined ring 2.
In this embodiment, the distance L2 between the axial center line of the meter rack 4 and the center line of the coupling ring 2 to be measured is 85mm, the pitch diameter L1 of the center point of the face tooth of the coupling ring to be measured is 85mm, and the error of the position of the other side face of the face tooth is allowed to be 0-0.25 mm. In this example, the fixed coefficient δ is L2 ÷ (L1 ÷ 2) ÷ 85 ÷ (85 ÷ 2) ÷ 2, and the actual position value C is X ÷ δ ÷ 0.5 ÷ 2 ÷ 0.25mm, and the position value is converted to fall within the allowable error range, and the product is acceptable. From the above calculation results, it can be seen that the values X indicated by the dial indicator 5 in this example are out of tolerance when the position is greater than 0.5mm, and the values less than 0.5mm are within the allowable error range of position, so all are considered as good products.
In the structure, in order to facilitate rotation, the inner hole of the standard part of the combination ring can be directly set to be smooth without a spline.
Compared with the prior art, the method has the following positive effects: 1. according to the requirement of a position gauge, a face tooth (equivalent to a go gauge in a smooth limit gauge) in the standard component of the combined ring is designed and manufactured, the position degree of two side faces of the face tooth of the combined ring is measured under the positioning condition, the installation and positioning structure is simple, the detection method is simple and convenient, no special requirement is required on the detection condition, and the combined ring is suitable for being matched and used in a production field;
2. as long as the face teeth of the standard part of the combination ring can be meshed with the face teeth of the combination ring to be detected, the position degree of the side B of the face teeth of the combination ring to be detected is qualified;
3. when the position degree of the other side surface of the combined ring surface tooth to be detected is measured, a quantitative detection result can be obtained, the detection efficiency is high, and the detection cost is low;
4. the measured micro backlash between the face teeth is amplified by the stretching arm and then is expressed by percentage, the indicated value can be simply converted to obtain an actual backlash value, namely the deviation value of the position degree of the other side of the combined ring face tooth to be measured, the detection result is objective, and the detection precision is high.
Embodiment 2 and embodiment 2 have substantially the same structure as embodiment 1, except that the positioning core is not provided with the supporting shaft section and the second optical shaft section, but directly provided with the positioning shaft section on the base, and the base forms a support and a limit for the ring-closing standard component.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The detection tool for detecting the position degree of the combined ring surface teeth is characterized by comprising a base (7), wherein a gauge stand (4) and a positioning shaft core (1) are fixed on the base, the positioning shaft core comprises a first optical shaft section (1.1), a positioning spline shaft section (1.2) and a positioning shaft section (1.3) which are sequentially arranged from top to bottom, a standard external spline is arranged on the positioning spline shaft section, a combined ring standard part (3) is sleeved on the positioning shaft section, and the combined ring standard part is in clearance fit with the positioning shaft section;
the dial indicator (5) is arranged at the top of the meter frame;
the combined ring standard component is characterized by further comprising a horizontal extending arm (6), one end of the horizontal extending arm is fixedly connected with the outer cylindrical surface of the combined ring standard component (3), and the other end of the horizontal extending arm extends to the position of a measuring head of the dial indicator (5).
2. The detection tool for detecting the position degree of the combined annular teeth as claimed in claim 1, wherein the positioning spindle further comprises a supporting spindle section (1.4) and a second optical axis section (1.5), the supporting spindle section is located below the positioning spindle section, the second optical axis section is located below the supporting spindle section, and the second optical axis section is connected with the base;
the diameter of the supporting shaft section is larger than that of the positioning shaft section, and the supporting shaft section is used for supporting the standard part of the combination ring below the positioning shaft section.
3. The detecting tool for detecting the position degree of the combined annular teeth as claimed in claim 2, wherein the dial indicator is transversely inserted into the axial center of the top end of the meter frame (4).
4. The tool for detecting the location degree of the teeth of the coupling ring surface as claimed in claim 1, wherein the inner hole of the standard coupling ring is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120893824.1U CN214620934U (en) | 2021-04-27 | 2021-04-27 | Detection tool for detecting position degree of combined annular teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120893824.1U CN214620934U (en) | 2021-04-27 | 2021-04-27 | Detection tool for detecting position degree of combined annular teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214620934U true CN214620934U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120893824.1U Active CN214620934U (en) | 2021-04-27 | 2021-04-27 | Detection tool for detecting position degree of combined annular teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214620934U (en) |
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2021
- 2021-04-27 CN CN202120893824.1U patent/CN214620934U/en active Active
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