CN218916280U - Dual-section gear width measuring mechanism - Google Patents
Dual-section gear width measuring mechanism Download PDFInfo
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- CN218916280U CN218916280U CN202223559596.8U CN202223559596U CN218916280U CN 218916280 U CN218916280 U CN 218916280U CN 202223559596 U CN202223559596 U CN 202223559596U CN 218916280 U CN218916280 U CN 218916280U
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Abstract
The utility model discloses a double-section gear width measuring mechanism, which comprises a mechanism base, wherein a positioning mechanism for installing a measured shaft and a measuring head for measuring the width of a groove of the measured shaft are arranged on the mechanism base, and the measuring head comprises a first ball mechanism for measuring the center width of the groove and a second ball mechanism for measuring the width of the outer side of the groove; the first ball mechanism comprises a first ball which is extruded and moved through the inner side surface of the middle part of the groove and a first sensor for measuring the displacement distance of the first ball, and the second ball mechanism comprises a second ball which is extruded and moved through the inner side surface of the outer side part of the groove and a second sensor for measuring the displacement distance of the second ball. The ball race designed by the utility model has compact structure, and two groups of ball mechanisms are arranged on the measuring head at the same time, so that the measurement of double-section gear width is realized.
Description
Technical Field
The utility model relates to the technical field of dimension measuring equipment of shaft diameter parts, in particular to a double-section gear width measuring mechanism.
Background
The width dimension of the groove of the shaft part is usually measured in various ways, such as a vernier caliper, a groove micrometer, a through-stop plate plug gauge and the like. The measurement accuracy of the measuring tool is not high enough, and the measuring tool cannot be directly used for automatic measurement. The special stopper gauge is provided with a precise sensor and a micro-motion transmission mechanism, is mainly used for manual measurement, has small measuring range, and needs special personnel to install and adjust when the measuring range is changed.
In the measuring process of the crankshaft machining line, the measurement of the size of the gear width is an important step, accurate detection of a hundred percent is needed, in order to obtain the size parameters of the inner surface and the outer surface of the gear width groove, the excessive horn mouth of the gear width groove is prevented, the process is required to measure multiple sizes of the inner surface and the outer surface of the gear width, when manual measurement is adopted, the method of measuring the inner surface and the outer surface of the gear width groove twice is required to meet the measurement requirement, the measurement efficiency and the measurement accuracy are relatively low, the measuring head is of a single size, and the replacement and adjustment of the measuring head are relatively complex.
Disclosure of Invention
The utility model aims to solve the defects of the background technology and provide the double-section gear width measuring mechanism with high measuring precision and convenient replacement.
The double-section gear width measuring mechanism comprises a mechanism base, wherein a positioning mechanism for installing a measured shaft and a measuring head for measuring the width of a groove of the measured shaft are arranged on the mechanism base, and the measuring head comprises a first ball mechanism for measuring the center width of the groove and a second ball mechanism for measuring the width of the outer side of the groove; the first ball mechanism comprises a first ball which is extruded and moved through the inner side surface of the middle part of the groove and a first sensor for measuring the displacement distance of the first ball, and the second ball mechanism comprises a second ball which is extruded and moved through the inner side surface of the outer side part of the groove and a second sensor for measuring the displacement distance of the second ball.
Further, the measuring head comprises a measuring head fixing block and a measuring head measuring block which is detachably fixed at the bottom of the measuring head fixing block, the first ball is arranged in the middle of the measuring head measuring block, and the second ball is arranged in the outer side of the measuring head measuring block; the middle part of the bottom of the measuring head fixing block is fixed with the first sensor, and the outer side part of the bottom of the measuring head fixing block is fixed with the second sensor.
Further, a first inclined surface rollaway nest with the top extending towards the inside of the measuring head measuring block and rising is symmetrically arranged on the front side and the rear side of the inside of the middle part of the measuring head measuring block, and each first inclined surface rollaway nest is provided with a first ball; the front side and the rear side of the middle part of the bottom of the measuring head fixing block are respectively fixed with a first sensor for measuring the height change of the first ball.
Further, a first ball stopper for preventing the first balls from rolling out of the measuring block is fixed on the inner front and rear side surfaces of the middle of the measuring block.
Further, a second inclined surface rollaway nest with the top extending and rising towards the inside of the measuring head measuring block is symmetrically arranged on the front side and the rear side of the inside of the outer side part of the measuring head measuring block, and each second inclined surface rollaway nest is provided with a second ball; the front side and the rear side of the outer side part of the bottom of the measuring head fixing block are respectively fixed with a second sensor for measuring the height change of the second ball.
Further, a second ball stopper for preventing the second balls from rolling out of the measuring block is fixed to the inner front and rear side surfaces of the outer side portion of the measuring block.
Further, the positioning mechanism comprises a supporting seat for supporting the measured shaft and tips which are positioned on the front side and the rear side of the supporting seat and used for pushing the two ends of the measured shaft.
Further, the supporting seat is slidably connected to a supporting seat sliding rail arranged in the left-right direction of the mechanism base, and the supporting seat is connected with a supporting seat driving motor for driving the supporting seat to move along the supporting seat sliding rail through a screw-nut mechanism.
Further, the center is fixed on a center support, and the center support is arranged on a center support sliding rail arranged along the front-back direction of the mechanism base in a sliding manner.
Still further, be fixed with the measurement support on the mechanism base, be provided with on the measurement support along the measurement support slide rail that mechanism base fore-and-aft direction was arranged, sliding connection has the measurement slip table on the measurement support slide rail, the measurement head set up in the bottom of measurement slip table.
The beneficial effects of the utility model are as follows: the ball can generate different displacement according to different gear widths by freely moving the ball in the space of the measuring head, and the displacement of the ball is converted into the height change of the measuring column by the measuring column, and the change of the height direction is transmitted to the sensing device to finish automatic measurement of the gear width. The ball race designed by the utility model has compact structure, and two groups of ball mechanisms are arranged on the measuring head at the same time, so that the measurement of double-section gear width is realized. According to the measuring head, the measuring head measuring block can be replaced to measure the size of different gear widths, the measuring head measuring block is accurately positioned through the positioning pin hole and the positioning pin of the measuring head fixing block, the measuring head measuring block is fixed with the measuring head fixing block through the screw, the quick change can be realized without complex fine adjustment, the measuring head has the characteristics of convenient change, quick change, no fine adjustment of sensor parameters at all positions, no replacement of a high-cost sensor, good economy, large ball protruding amount, larger measuring range, good adaptability to groove position change, larger ball radius, lighter force measurement, no scratch and abrasion on the surface of the groove, accurate measurement, and convenient realization of automatic pneumatic measurement. The ball mechanism and the vertical transmission measuring column have compact structures, the measuring requirement of double-section measurement in a narrow space is realized, and the measuring device can be expanded to the range measurement of a plurality of sections.
Drawings
FIG. 1 is a perspective view of a structure of a double-section gear width measuring mechanism for measuring the size of a crankshaft groove in the utility model;
FIG. 2 is a perspective view of a head block according to the present utility model;
FIG. 3 is a perspective view of a measuring block of the measuring head of the present utility model;
FIG. 4 is a perspective view of the gauge block of the present utility model with the second ball omitted;
FIG. 5 is a perspective view of the structure of the measuring head for measuring the width of the groove in the utility model;
the device comprises a 1-mechanism base, a 2-measured shaft, a 3-groove, a 4-first ball, a 5-first sensor, a 6-second ball, a 7-second sensor, an 8-measuring head fixing block, a 9-measuring head measuring block, a 10-first inclined surface rollaway, a 11-first ball stop, a 12-second ball stop, a 13-second inclined surface rollaway, a 14-supporting seat, a 15-center, a 16-supporting seat slide rail, a 17-supporting seat driving motor, a 18-center support, a 19-center support slide rail, a 20-measuring support, a 21-measuring support slide rail, a 22-measuring slide table, a 23-measuring head, a 24-locating pin, a 25-locating pin hole, a 26-fixing screw hole, a 27-first measuring column and a 28-second measuring column.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples.
The double-section gear width measuring mechanism as shown in fig. 1-5 comprises a mechanism base 1, wherein a positioning mechanism for installing a measured shaft 2 and a measuring head 23 for measuring the groove width of the measured shaft 2 are arranged on the mechanism base 1. The positioning mechanism comprises a supporting seat 14 for supporting the measured shaft 2 and apexes 15 positioned on the front side and the rear side of the supporting seat 14 and used for pushing the two ends of the measured shaft 2, wherein the apexes 15 are fixed on an apexes support 18, and the apexes support 18 are arranged on apexes support slide rails 19 arranged along the front-rear direction of the mechanism base 1 in a sliding manner. The supporting seat 14 is slidably connected to a supporting seat slide rail 16 arranged along the left-right direction of the mechanism base 1, and the supporting seat 14 is connected with a supporting seat driving motor 17 for driving the supporting seat 14 to move along the supporting seat slide rail 16 through a screw-nut mechanism.
The mechanism base 1 is fixedly provided with a measuring support 20, the measuring support 20 is provided with a measuring support sliding rail 21 which is arranged along the front-back direction of the mechanism base 1, the measuring support sliding rail 21 is connected with a measuring sliding table 22 in a sliding manner, and a measuring head 23 is arranged at the bottom of the measuring sliding table 22.
The measuring head 23 includes a measuring head fixing block 8 and a measuring head measuring block 9 detachably fixed to the bottom of the measuring head fixing block 8.
The inside first ball mechanism that is used for measuring recess center width that is provided with in middle part of measuring block 9 of measuring head: the measuring head comprises first inclined surface rollaway nest 10 which is symmetrically arranged on the front side and the rear side of the inner part of the middle part of the measuring head measuring block 9, the top end of the first inclined surface rollaway nest 10 extends towards the inner part of the measuring head measuring block 9 and rises, a first ball 4 is arranged on each first inclined surface rollaway nest 10, and a first measuring column 27 which can move along the vertical direction is arranged above each first ball 4. A first sensor 5 is fixed in the middle of the bottom of the measuring head fixing block 8 for measuring the height change of the first measuring column 27. The inner front and rear side surfaces of the middle part of the measuring block 9 are respectively fixed with a first ball stopper 11 for preventing the first balls 4 from rolling out of the measuring block 9.
The second ball mechanism for measuring the width of the outer side of the groove is arranged inside the outer side part of the measuring head measuring block 9: the measuring head comprises second inclined surface rollaway nest 13 which are symmetrically arranged on the front side and the rear side of the inner part of the outer side part of the measuring head measuring block 9, the top end of the second inclined surface rollaway nest 13 extends towards the inner part of the measuring head measuring block 9 and rises, a second ball 6 is arranged on each second inclined surface rollaway nest 13, and a second measuring column 28 which can move along the vertical direction is arranged above each second ball 6. A second sensor 7 is fixed to the outer side of the bottom of the head fixing block 8 for measuring the height change of the second measuring column 28. The inner front and rear side surfaces of the outer side portion of the head measuring block 9 are respectively fixed with a second ball stopper 12 for preventing the second balls 6 from rolling out of the head measuring block 9.
The working process of the utility model is as follows: in the utility model, a crankshaft is taken as an example, as shown in fig. 1, after a measured shaft 2 (crankshaft) is jacked up by apexes 15 positioned at two ends of the crankshaft, a supporting seat 14 moves to the lower part of the measured shaft 2 to support the measured shaft 2, a measuring sliding table 22 moves to the upper part of the measured shaft 2, and a measuring head 23 descends to enter a groove 3 of the measured shaft 2 (as shown in fig. 5). After the measuring head 23 enters the groove 3, two first balls 4 in the middle of the measuring head 23 and a second ball 6 on the outer side of the measuring head 23 are respectively contacted with the middle and the outer inner surface of the groove 3, the first balls 4 and the second balls 6 are positioned at different radiuses of the groove 3, and the width dimension of two sections (double sections) of the groove 3 can be measured.
The first ball 4 and the second ball 6 at the middle part and the outer part of the measuring head 23 respectively move along the first inclined plane raceway 10 and the second inclined plane raceway 13, the centers of the first ball 4 and the second ball 6 move in the height direction, the upper top point of the first ball 4 is contacted with the lower end surface of the first measuring column 27 to drive the first measuring column 27 to move up and down, the second ball 6 is contacted with the lower end surface of the second measuring column 28 to drive the second measuring column 28 to move up and down, and the first sensor 5 and the second sensor 7 respectively measure the height change of the first measuring column 27 and the height change of the second measuring column 28 to convert the height change of the measuring column into the width of the groove, namely the groove width.
When the measuring heads 23 with different width dimensions are replaced, the measuring head measuring block 9 is removed from the measuring head fixing block 8 by loosening the screws at the lower ends of the measuring heads 23. The measuring head measuring block 9 with other width dimensions is arranged on the positioning pin 24 of the measuring head fixing block 8 through the positioning pin hole 24, and the measuring head measuring block 9 is fixed on the measuring head fixing block 8 through a screw.
In summary, according to the present utility model, the balls can freely move in the space of the measuring head 23, so that different displacement amounts can be generated by the balls according to different gear widths, and the displacement amounts of the balls are converted into the height change of the measuring column by the measuring column, and the change in the height direction is transmitted to the sensor device, so that automatic measurement of the gear width is completed. The ball race designed by the utility model has compact structure, and two groups of ball mechanisms are arranged on the measuring head at the same time, so that the measurement of double-section gear width is realized. According to the measuring head, the measuring head measuring block 9 can be replaced to measure the size of different gear widths, the measuring head measuring block 9 is accurately positioned through the positioning pin holes 25 and the positioning pins 24 of the measuring head fixing block 8, the measuring head measuring block 9 and the measuring head fixing block 8 are fixed through screws, the quick change of production can be realized without complex fine adjustment, the measuring head 23 has the characteristics of convenient change of shape and quick change, the change of shape of the measuring head 23 does not need fine adjustment of sensor parameters everywhere, a high-cost sensor is not required to be replaced, the economy is good, the protruding amount of balls is large, the measuring range is large, the adaptability to the position change of the groove 3 is good, the radius of the balls is large, the force measurement is light, no scratch and abrasion are generated on the surface of the groove 3, the measurement accuracy is ensured, and the automatic pneumatic measurement is convenient to realize. The ball mechanism and the vertical transmission measuring column have compact structures, the measuring requirement of double-section measurement in a narrow space is realized, and the measuring device can be expanded to the range measurement of a plurality of sections.
The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the structure of the present utility model in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (10)
1. The utility model provides a wide measuring mechanism of double cross-section shelves, includes mechanism base (1), its characterized in that: the mechanism base (1) is provided with a positioning mechanism for installing a measured shaft (2) and a measuring head (23) for measuring the width of a groove of the measured shaft (2), and the measuring head (23) comprises a first ball mechanism for measuring the center width of the groove and a second ball mechanism for measuring the outer width of the groove; the first ball mechanism comprises a first ball (4) which is extruded and moved through the inner side surface of the middle part of the groove (3) and a first sensor (5) for measuring the displacement distance of the first ball (4), and the second ball mechanism comprises a second ball (6) which is extruded and moved through the inner side surface of the outer side part of the groove (3) and a second sensor (7) for measuring the displacement distance of the second ball (6).
2. The dual cross-section span measurement mechanism of claim 1 wherein: the measuring head (23) comprises a measuring head fixing block (8) and a measuring head measuring block (9) which is detachably fixed at the bottom of the measuring head fixing block (8), the first ball (4) is arranged in the middle of the measuring head measuring block (9), and the second ball (6) is arranged in the outer side of the measuring head measuring block (9); the middle part of the bottom of the measuring head fixing block (8) is fixed with the first sensor (5), and the outer side part of the bottom of the measuring head fixing block (8) is fixed with the second sensor (7).
3. The dual cross-section span measurement mechanism of claim 2, wherein: the measuring head measuring block (9) is characterized in that a first inclined surface rollaway nest (10) with the top extending towards the inside of the measuring head measuring block (9) and rising is symmetrically arranged on the front side and the rear side of the inside of the middle part of the measuring head measuring block (9), and each first inclined surface rollaway nest (10) is provided with a first ball (4); the front side and the rear side of the middle part of the bottom of the measuring head fixing block (8) are respectively fixed with a first sensor (5) for measuring the height change of the first ball (4).
4. The dual cross-section span measurement mechanism of claim 3 wherein: the inner front side surface and the inner rear side surface of the middle part of the measuring block (9) are respectively fixed with a first ball stop block (11) for preventing the first balls (4) from rolling out of the measuring block (9).
5. The dual cross-section span measurement mechanism of claim 2, wherein: the front side and the rear side of the inside of the outer side part of the measuring block (9) are symmetrically provided with a second inclined plane rollaway nest (13) with the top extending and rising towards the inside of the measuring block (9), and each second inclined plane rollaway nest (13) is provided with a second ball (6); the front side and the rear side of the outer side part of the bottom of the measuring head fixing block (8) are respectively fixed with a second sensor (7) for measuring the height change of the second ball (6).
6. The dual cross-section span measurement mechanism of claim 5 wherein: and a second ball stop block (12) for preventing the second balls (6) from rolling out of the measuring block (9) is respectively fixed on the front side surface and the rear side surface of the outer side part of the measuring block (9).
7. The dual cross-section span measurement mechanism of claim 1 wherein: the positioning mechanism comprises a supporting seat (14) for supporting the measured shaft (2) and tips (15) which are positioned on the front side and the rear side of the supporting seat (14) and used for pushing the two ends of the measured shaft (2).
8. The dual cross-section span measurement mechanism of claim 7 wherein: the supporting seat (14) is slidably connected to a supporting seat sliding rail (16) arranged in the left-right side direction of the mechanism base (1), and the supporting seat (14) is connected with a supporting seat driving motor (17) for driving the supporting seat (14) to move along the supporting seat sliding rail (16) through a screw-nut mechanism.
9. The dual cross-section span measurement mechanism of claim 7 or 8, wherein: the center (15) is fixed on a center support (18), and the center support (18) is arranged on a center support sliding rail (19) arranged along the front-back direction of the mechanism base (1) in a sliding mode.
10. The dual cross-section span measurement mechanism of claim 1 wherein: the mechanism is characterized in that a measurement support (20) is fixed on the mechanism base (1), a measurement support sliding rail (21) arranged along the front-back direction of the mechanism base (1) is arranged on the measurement support (20), a measurement sliding table (22) is connected to the measurement support sliding rail (21) in a sliding mode, and a measurement head (23) is arranged at the bottom of the measurement sliding table (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223559596.8U CN218916280U (en) | 2022-12-30 | 2022-12-30 | Dual-section gear width measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223559596.8U CN218916280U (en) | 2022-12-30 | 2022-12-30 | Dual-section gear width measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218916280U true CN218916280U (en) | 2023-04-25 |
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ID=86040351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223559596.8U Active CN218916280U (en) | 2022-12-30 | 2022-12-30 | Dual-section gear width measuring mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN218916280U (en) |
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2022
- 2022-12-30 CN CN202223559596.8U patent/CN218916280U/en active Active
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