CN212109852U - Involute inner spline rod spacing measuring scale - Google Patents
Involute inner spline rod spacing measuring scale Download PDFInfo
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- CN212109852U CN212109852U CN202020814892.XU CN202020814892U CN212109852U CN 212109852 U CN212109852 U CN 212109852U CN 202020814892 U CN202020814892 U CN 202020814892U CN 212109852 U CN212109852 U CN 212109852U
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- dipperstick
- measuring
- upper portion
- vernier
- measuring scale
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Abstract
The utility model belongs to the technical field of mechanical part size measurement, in particular to an involute inner spline rod spacing measuring scale, which comprises an upper part; the lower part of the measuring scale is positioned below the upper part of the measuring scale; the vernier caliper comprises a main ruler and a vernier, the main ruler is obliquely installed at the lower end of the upper part of the measuring ruler through a fixing screw, and the vernier is obliquely installed at the upper end of the lower part of the measuring ruler through a fixing screw; the dipperstick lower part is slided relatively in dipperstick upper portion, makes dipperstick upper portion top and dipperstick lower part bottom paste respectively and connect festival pole, dipperstick upper portion is through locking bolt and dipperstick lower part fixed connection. The utility model discloses a dipperstick weight is light and handy, convenient to carry, and the operation is simple and easy, and the reading fast realizes measuring in batches, and measuring range is adjustable, can carry out cycle examination and self-calibration.
Description
Technical Field
The utility model belongs to the technical field of machine part size measurement, concretely relates to interior spline stick interval dipperstick gradually bursts at seams.
Background
The spline coupling is widely applied to the field of engineering machinery, and particularly heavy engineering equipment with large transmission torque and high transmission concentricity requirement is used. The spline coupling is composed of an inner spline and an outer spline, the spline on the inner cylindrical surface is an inner spline, and the spline on the outer cylindrical surface is an outer spline. The requirement of the fit precision of the internal spline and the external spline in application is relatively high, the fit clearance directly influences the running stability of equipment and even the service life of the equipment, the important index is an important index for determining key parameters of the equipment, for the precision quality of the external spline, the machining quality of the external spline can be controlled by measuring parameters such as the cross-bar distance and the tooth thickness, but for the internal spline, due to the measurement limitation, the tooth thickness cannot be measured by using a tooth thickness caliper or a micrometer, the measurement of the bar interval is currently and generally carried out by using a measuring block 2, the measurement is carried out by using the measuring block 2 to form the size similar to the bar interval, the comparison measurement is carried out, and after the measurement is finished, the sizes of all measuring blocks 2 are added to obtain the bar interval measurement value. The current measuring method has the following defects: 1. the measurement of large parts or spline deep parts is difficult or impossible; 2. the measurement process is complicated and is not suitable for batch detection; 3. the measurement error is large, the precision is low, and the measurement result is inconvenient to read; 4. the operation requirement on personnel is high, and the combination of the gauge blocks and the use of the gauge blocks need personnel with professional metering knowledge to operate.
Disclosure of Invention
In order to solve the above-mentioned problem that exists among the prior art, the utility model aims at providing an interior spline stick interval dipperstick gradually bursts at seams, this dipperstick weight is light and handy, convenient to carry, and the operation is simple and easy, but quick reading realizes measuring in batches, and measuring range is adjustable, can carry out cycle examination and self-calibration.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a pair of interior spline stick interval dipperstick gradually bursts at seams, include:
measuring the upper part of the ruler;
the lower part of the measuring scale is positioned below the upper part of the measuring scale;
the vernier caliper comprises a main ruler and a vernier, the main ruler is obliquely installed at the lower end of the upper part of the measuring ruler through a fixing screw, and the vernier is obliquely installed at the upper end of the lower part of the measuring ruler through a fixing screw;
the dipperstick lower part is slided relatively in dipperstick upper portion, makes dipperstick upper portion top and dipperstick lower part bottom paste respectively and connect festival pole, dipperstick upper portion is through locking bolt and dipperstick lower part fixed connection.
Further, the measuring head is detachably mounted on the top of the upper part of the measuring scale or the bottom of the lower part of the measuring scale.
Further, the measuring head is fixedly connected with the top of the upper part of the measuring scale or the bottom of the lower part of the measuring scale through an inner hexagon bolt.
Further, the measuring head comprises combined standard blocks with various sizes, and for a workpiece with a large size, the measuring range is increased by increasing the number of stacked combined standard blocks.
Furthermore, the combined standard blocks are fixedly connected through hexagon socket head cap screws.
Further, the adjusting device also comprises an adjusting screw arranged on the vernier.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses an interior spline stick interval dipperstick gradually bursts at seams is applicable to the interior spline that gradually bursts at seams or the stick interval measurement of the internal gear that gradually bursts at seams, and the measurement form avoids the outside interference condition for part internal measurement. And the combined modular design is adopted, and the measurement range is adjusted by adding the combined standard block, so that the measurement range is wide. The measuring scale has the advantages of attractive appearance, light weight, portability and convenient operation.
The measuring method is convenient, simple to operate, capable of being operated by one hand, capable of being used for batch measurement, and capable of measuring workpieces with long splines or large depths.
In the internal spline keyway with two pitch circle stick adhesions respectively when measuring, two pitch circle sticks of aiming at the dipperstick both ends, slip dipperstick upper portion and dipperstick lower part respectively, make the dipperstick both ends paste the pitch circle stick, then lock nut, take out the dipperstick, direct reading slide caliper's reading, the vertical distance that the relative dipperstick lower part in dipperstick upper portion removed can be represented to this reading, in addition dipperstick upper portion, the known size of dipperstick lower part and measuring head, obtain excellent interval numerical value, this kind of measurement mode makes measured data more directly perceived, avoid indirect measuring error, and measurement accuracy is up to 0.01mm, can satisfy the measurement requirement completely to the higher work piece of required precision.
The measuring scale is used as a special measuring instrument, has the functions of verification and self calibration, is easy to operate, and ensures accurate and reliable quantity value transmission.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a state of the art diagram of the use of a gauge block to measure rod spacing;
fig. 2 is a schematic front structure diagram of an involute inner spline rod spacing measuring scale according to an embodiment of the present invention;
fig. 3 is a back structure diagram of an involute inner spline rod spacing measuring scale according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a larger-sized modular block according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a combined standard block with a smaller size according to an embodiment of the present invention;
FIG. 6 is a diagram of the measuring scale for the distance between involute internal spline rods according to the embodiment of the present invention;
fig. 7 is a reading schematic of the vernier caliper using the novel embodiment.
The reference numbers in the figures denote:
1. the measuring device comprises a round bar, 2 measuring blocks, 3 measured internal splines, 4 measuring heads, 401 combined standard blocks, 5 measuring rule upper parts, 6 fixing screws, 7 vernier calipers, 701 main rules, 702 vernier, 703 locking nuts, 704 adjusting screws and 8 measuring rule lower parts.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments.
As shown in fig. 2 and 3, the involute inner spline rod distance measuring scale of the present embodiment includes a measuring scale upper portion 5, a measuring scale lower portion 8 and a vernier caliper 7, the measuring scale lower portion 8 is located below the measuring scale upper portion 5, the vernier caliper 7 includes a main scale 701 and a vernier 702, the main scale 701 is obliquely installed at the lower end of the measuring scale upper portion 5 through a fixing screw 6, the vernier 702 is obliquely installed at the upper end of the measuring scale lower portion 8 through the fixing screw 6, optionally, the inclination angle of the vernier caliper 7 relative to the horizontal plane is 30 °, the measuring scale upper portion 5 slides relative to the measuring scale lower portion 8, so that the top end of the measuring scale upper portion 5 and the bottom end of the measuring scale lower portion 8 are respectively attached to the pitch round rod 1, the measuring scale upper portion 5 is fixedly connected with the measuring scale lower portion 8 through a locking bolt, the locking bolt and a locking nut 703 matched with the measuring scale are used for locking the pitch round rod 1 at both ends of the measuring scale, thereby, affecting the accuracy of the reading result.
This dipperstick still includes measuring head 4, and measuring head 4 passes through hexagon socket head cap screw and the top of dipperstick upper portion 5 or the bottom fixed connection of dipperstick lower part 8, and measuring head 4 can be dismantled, as shown in fig. 4 and 5, and measuring head 4 includes the combination standard block 401 of multiple size, and to the great work piece of size, can increase corresponding combination standard block 401's stack quantity and increase the range, accessible hexagon socket head cap screw fixed connection between the polylith combination standard block 401.
The measurement scale also includes an adjustment screw 704 disposed on the cursor 702, the adjustment screw 704 being used when the measurement scale is being calibrated or self-calibrated.
The structure and reading rule of the vernier caliper 7 of this embodiment are similar to those of a common vernier caliper, but the scales of the main scale 701 and the vernier 702 are specially designed, and are different from those of the common vernier caliper, and the scale of the main scale 701 and the indication value of the vernier 702 are directly read out, so that the vertical distance of the upper part 5 of the measuring scale moving relative to the lower part 8 of the measuring scale can be represented. The vernier caliper 7 reading rule of the present embodiment is exemplified as follows: because the sliding direction of the main scale 701 forms an included angle of 60 degrees with the upper and lower parts of the measuring scale, the main scale 701 is designed into 100 cells, the actual width of each cell is 1mm, but every two cells represent 1mm, the effective measuring distance is 25mm (25 mm behind the main scale 701 is used for vernier indication), the moving distance of the vernier 702 is 2 times of the up-and-down moving distance of the measuring scale, the vernier 702 is designed into 50 cells, the actual width of each cell is 0.98mm, but each cell represents 0.01mm (0.5/50 =0.01 mm), the reading rule is similar to that of a common vernier caliper, the reading of the main scale and the reading of the vernier are as shown in fig. 7, the reading of the main scale is 7.5mm + the reading of the vernier is 0.09mm, and the final reading is 7.59mm, and through the special design of the vernier caliper, the reading of the vernier caliper 7.59mm directly read can represent the vertical distance of the upper part 5 of the measuring scale moving relative to.
The working principle of the embodiment is as follows:
as shown in fig. 6, a proper combined standard block 401 is selected according to the rod spacing dimension required by the part drawing, the combined standard block 401 is fixed at the top of the upper part 5 of the measuring scale (or the bottom of the lower part 8 of the measuring scale), the measuring scale needs to be self-calibrated before the first use or when the combined standard block 401 is added, so as to ensure the accuracy of the measured value, the adjusting screw 704 is loosened during self-calibration, the corresponding dimension is adjusted by a micrometer, the vernier 702 is zeroed, and the adjusting screw 704 is locked. Stick two festival round bars 1 in 2 keyways of surveyed internal spline with butter respectively when measuring, aim at two festival round bars 1 with the dipperstick both ends, respectively slip dipperstick upper portion 5 and dipperstick lower part 8, make the dipperstick both ends paste festival round bar 1, then lock the lock nut 703 supporting with the locking bolt, take out the dipperstick, read out vernier caliper 7's reading, dipperstick upper portion 5 vertical distance d of 8 relative sliding in dipperstick lower part adds initial state combination standard block 401 (highly be an), dipperstick upper portion 5 (highly be b) and the known overall height of dipperstick lower part 8 (highly be c), can obtain the excellent interval numerical value (H = a + b + c + d) of this work piece.
The utility model discloses a dipperstick convenient to carry, easy operation, measuring range is adjustable, and measured data is more directly perceived, and the measuring accuracy is high, and measuring error is little, is suitable for to measure the longer or great work piece of the degree of depth of some splines.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an interior spline stick interval dipperstick of gradually bursting at seams which characterized in that includes:
measuring the upper part of the ruler;
the lower part of the measuring scale is positioned below the upper part of the measuring scale;
the vernier caliper comprises a main ruler and a vernier, the main ruler is obliquely installed at the lower end of the upper part of the measuring ruler through a fixing screw, and the vernier is obliquely installed at the upper end of the lower part of the measuring ruler through a fixing screw;
the dipperstick lower part is slided relatively in dipperstick upper portion, makes dipperstick upper portion top and dipperstick lower part bottom paste respectively and connect festival pole, dipperstick upper portion is through locking bolt and dipperstick lower part fixed connection.
2. The involute inner spline bar spacing gauge according to claim 1, further comprising a measuring head detachably mounted on the top of the upper portion of the gauge or the bottom of the lower portion of the gauge.
3. The involute internally splined rod spacing gauge of claim 2, wherein the measuring head is fixedly connected to the top of the upper portion of the gauge or the bottom of the lower portion of the gauge by means of a hexagon socket head cap screw.
4. The involute inner spline bar spacing gauge according to claim 2, wherein the measuring head comprises a plurality of sizes of combined standard blocks, and the measuring range is increased by increasing the number of stacked combined standard blocks for a large-sized workpiece to be measured.
5. The involute inner spline rod spacing measuring scale of claim 4, wherein the combined standard blocks are fixedly connected through inner hexagon bolts.
6. The involute inner spline bar spacing gauge according to claim 1, further comprising an adjustment screw provided on the cursor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020814892.XU CN212109852U (en) | 2020-05-16 | 2020-05-16 | Involute inner spline rod spacing measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020814892.XU CN212109852U (en) | 2020-05-16 | 2020-05-16 | Involute inner spline rod spacing measuring scale |
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| CN212109852U true CN212109852U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020814892.XU Active CN212109852U (en) | 2020-05-16 | 2020-05-16 | Involute inner spline rod spacing measuring scale |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111491A (en) * | 2021-11-22 | 2022-03-01 | 四川名齿齿轮制造股份有限公司 | Vernier caliper and method for measuring distance between internal spline rods |
-
2020
- 2020-05-16 CN CN202020814892.XU patent/CN212109852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111491A (en) * | 2021-11-22 | 2022-03-01 | 四川名齿齿轮制造股份有限公司 | Vernier caliper and method for measuring distance between internal spline rods |
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