CN209820379U - Angle measuring tool - Google Patents
Angle measuring tool Download PDFInfo
- Publication number
- CN209820379U CN209820379U CN201920837077.2U CN201920837077U CN209820379U CN 209820379 U CN209820379 U CN 209820379U CN 201920837077 U CN201920837077 U CN 201920837077U CN 209820379 U CN209820379 U CN 209820379U
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- bracket
- base
- rack shaft
- angle
- sine gauge
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Abstract
The utility model discloses an angle measuring tool belongs to mechanical precision measurement instrument field. Wherein, an angle measuring tool includes: the measuring device and the angle table are arranged on the same working plane with the measuring component; the measuring device includes: the rack-and-pinion type automatic locking device comprises a base, a rack shaft in threaded connection with one end of the base, a bracket in sliding connection with the rack shaft, a gear which is arranged in the bracket and is meshed with the rack shaft, a hand wheel which is rotationally connected with the bracket, a vernier caliper which is arranged in a matched manner with the rack shaft, a locking device which is arranged on the bracket and is matched with the rack shaft, and a scientific calculator which is arranged on the base; the angle table includes: the sine gauge is hinged with the bottom plate through the arc-shaped plate; the bottom parts of two ends of the sine gauge are cylindrical shafts, and the cylindrical shafts at the two ends are abutted to the bottom plate; the utility model discloses, through measuring device and angle platform, it is complicated to have solved the sine rule operation, and the gliding that drops easily causes economic loss to and the high scheduling problem of complete set purchase cost.
Description
Technical Field
The utility model belongs to mechanical precision measurement instrument field, especially an angle measuring tool.
Background
Sine gauges, also known as sine tables, are mechanical precision gauges for detecting factors such as angles, slopes and flatness, and are widely applied to machinery manufacturing industry, scientific research and teaching training. After the measured angle and inclined plane are converted into horizontal position, the surface condition of the measured angle and inclined plane is detected by the measuring instrument and the measuring meter, so that the angle and plane accuracy of the measured piece is obtained.
In the training process of the metalworking in school, the fact that the components of the sine gauge are separated and do not have enough supporting connection relation is found, so that the sine gauge is easy to collapse from the gauge block to cause economic loss during measurement, and in order to meet the measurement of workpieces at different angles, each sine gauge needs to be purchased with a complete set of gauge blocks, the price is high, and the requirement of teaching use is difficult to meet.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: an angle measuring tool is provided to solve the above problems in the prior art.
The technical scheme is as follows: an angle measuring tool comprising: the measuring device and the angle table are arranged on the same working plane with the measuring component;
the measuring device includes: the rack-and-pinion type automatic locking device comprises a base, a rack shaft in threaded connection with one end of the base, a bracket in sliding connection with the rack shaft, a gear which is arranged in the bracket and is meshed with the rack shaft, a hand wheel which is rotationally connected with the bracket, a vernier caliper which is arranged in a matched manner with the rack shaft, a locking device which is arranged on the bracket and is matched with the rack shaft, and a scientific calculator which is arranged on the base;
wherein, one end of the bracket extends to form a platform outside the base; a connecting shaft extends along the axis of the hand wheel, penetrates through the bracket and is fixedly connected with the gear; the body of the digital display vernier caliper is fixedly connected with the base, and the vernier is fixedly connected with the bracket;
the angle table includes: the sine gauge is hinged with the bottom plate through the arc-shaped plate; the bottom parts of two ends of the sine gauge are cylindrical shafts, and the cylindrical shafts are abutted to the bottom plate;
the base and the bottom plate are arranged on the same working plane, and when the support is abutted to the base, the cylinders at the two ends of the sine gauge are tangent to the plane where the platform of the support is located.
In further embodiment, the top of digital display slide caliper's blade and the top of rack axle pass through fixed block fixed connection, if the blade of digital display slide caliper to the rack axle between not fixed, the angle between blade and the rack axle appears easily and takes place the skew, influences the meshing between gear and the rack axle and the sliding connection between vernier and the blade, and then causes equipment trouble, so through the fixed block with the top of digital display slide caliper's blade and the top fixed connection of rack axle, can reduce the fault rate reduction use cost of equipment.
In further embodiment, locking device is the knob plunger, wherein, knob plunger and support spiro union, and the top of knob plunger is the handle, and the bottom and the rack bar butt of knob plunger make knob plunger and rack bar butt reach the effect of locking when needs locking support handle knob plunger of screwing of knob plunger, prevent that the support receives the pressure gliding of sine gauge at the in-process that uses, improved measuring precision, avoided causing economic loss.
In further embodiment, the top that measuring device's one end was kept away from to the bottom plate is opened with the position of sine rule butt has the V-arrangement groove, the cylinder butt of measuring device one end is kept away from with the sine rule to two inclined planes in V-arrangement groove, because the both ends bottom of sine rule is the cylinder, the sine rule takes place easily to slide on the bottom plate when the bottom surface of sine rule is direct with the bottom plate butt, can't guarantee the initial position of sine rule, thereby influence the measurement accuracy of sine rule, so through opening the V-arrangement groove on the bottom plate, make two inclined planes in V-arrangement groove and sine rule butt can guarantee the initial position of sine rule, can improve the measurement accuracy of sine rule through the initial position of guaranteeing the sine rule.
In a further embodiment, a groove is formed in one end, close to the measuring device, of the base plate, the width and the length of the groove are larger than those of the platform of the support, two ends of the sine gauge in an initial state are abutted to the base plate, and one end of the sine gauge needs to be placed on the platform of the support to enable one end of the sine gauge to rise along with the support when the sine gauge is used, so that the groove capable of accommodating the platform of the support is formed in the base plate, and the platform of the support can be placed below the sine gauge under the condition that the initial position of the sine gauge is not changed.
In a further embodiment, threaded holes for installing stop plates are formed in four sides of the sine gauge, the stop plates can be installed through threaded connection of screws and the threaded holes to limit the position of a workpiece to be measured, and the measurement precision is improved.
In a further embodiment, one end of the arc-shaped plate is provided with a through hole, the other end of the arc-shaped plate is provided with an arc-shaped groove, the sine gauge is connected with the arc-shaped groove in a sliding mode through the big-end pin, the sine gauge can still be hinged with the bottom plate when the sine gauge and the bottom plate form any angle through the sliding connection of the big-end pin, and the supporting connection relation between the sine gauge and the bottom plate is guaranteed.
In a further embodiment, one end of the big end pin is a screw head, the other end of the big end pin is a threaded column, the middle part of the big end pin is a screw of the cylindrical pin, wherein the height of the cylindrical pin is smaller than the thickness of the arc-shaped plate, the angle between the sine gauge and the bottom plate needs to be adjusted continuously in the using process to adapt to the angle of a workpiece to be measured, and the closer the angle is, the smaller the angle needs to be adjusted, so that the height of the cylindrical pin is smaller than the thickness of the arc-shaped plate in the design process, and the friction force between the big end pin and the arc-shaped plate can be adjusted according to needs in the using process, so that the angle.
In a further embodiment, the scientific calculator is electrically connected with the vernier of the digital display vernier caliper, the raised height of the sine gauge measured by the digital display vernier caliper is directly input into the scientific calculator, and the result of the arcsine function is directly calculated and displayed by the scientific calculator, so that the angle of the measured workpiece can be obtained more directly and accurately.
Has the advantages that: the locking device is arranged on the bracket, and the sine gauge is hinged with the bottom plate through the arc plate, so that the phenomenon that the sine gauge falls off and slides down to cause economic loss in the use process can be avoided; by installing the digital display vernier caliper and the scientific calculator on the measuring device, the angle of the measured workpiece can be conveniently and accurately obtained under the condition of not purchasing a measuring block, the operation is simple, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
The reference numerals shown in fig. 1 to 2 are: the device comprises a measuring device 1, an angle table 2, a torsion spring micrometer 3, a measured workpiece 4, a base 11, a rack shaft 12, a support 13, a gear 14, a hand wheel 15, a digital display vernier caliper 16, a locking device 17, a scientific calculator 18, a fixed block 19, a bottom plate 21, a sine gauge 22 and an arc plate 23.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
An angle measuring tool comprising: the sine gauge 22, the center distance of the cylinders at the two ends of the sine gauge 22 is 200mm, threaded holes are further formed in the periphery of the sine gauge 22, and a stop plate can be installed through the threaded holes.
The digital vernier caliper 16 has the measuring range of 200mm, and the central distance between the cylinders at the two ends of the sine gauge 22 is 200mm, so that the digital vernier caliper 16 with the measuring range of 200mm is enough to meet the requirement of measuring a workpiece with an angle of 0-90 degrees.
Locking device 17, locking device 17 is the handle type knob plunger of model PXVB 16-6.
Base 11, base 11 are the cuboid, and the upper and lower surface of base 11 is parallel, and open threaded hole on the left end top of base 11, open the lower left corner of base 11 side has the recess with 16 blade matched with of digital display slide caliper.
The rack shaft 12 is provided with a threaded column at the bottom end of the rack shaft 12, a cylinder extends along the central axis of the threaded column, one side of the cylinder is provided with a rack, and the surface roughness of the part of the cylinder without the rack is below 3.2 mu m.
The bracket 13 is in a Z shape, four transverse surfaces of the bracket 13 are parallel to the upper surface and the lower surface of the base 11, and one end of the bracket 13 is a platform extending out of the base 11; the other end of the bracket 13 is provided with a groove, the bottom end of the groove is an arc which is in sliding connection with the rack shaft 12, and the surface roughness of the arc is below 3.2 mu m; one side of the bracket 13 is provided with a threaded hole matched with a vernier of the digital vernier caliper 16, the other side of the bracket 13 is provided with a through hole for mounting a hand wheel 15, and a threaded through hole for mounting a locking device 17 is arranged at a position corresponding to the rack shaft 12.
The module of the gear 14 is matched with that of the rack shaft 12, the width of the gear 14 is smaller than the diameter of the rack shaft 12, and a through hole with a key groove is formed along the axis of the gear 14.
The hand wheel 15, the hand wheel 15 is circular, one end eccentric settings of hand wheel 15 has the handle, another end is equipped with the connecting axle along the axis of hand wheel 15, the size of connecting axle cooperatees with the through-hole on the support 13, the intermediate position of connecting axle is opened has the keyway with gear 14 matched with.
The scientific calculator 18 is provided with a display and a plurality of buttons, besides the basic calculation function, the scientific calculator 18 automatically displays the calculation result of arcsin (alpha) × 180 °/, under the condition of not using keys, wherein arcsin (alpha) is an inverse function of sin (alpha), sin (alpha) = H ÷ L, alpha is an included angle between the bottom surface of the sine gauge 22 and the upper surface of the bottom plate 21, H is the measurement size of the digital display vernier caliper 16, and L is the center distance between two cylinders of the sine gauge 22.
The fixed block 19, the square groove that the one end of fixed block 19 was opened and to be had can be passed through by digital display slide caliper 16's depth gauge, and the bottom is opened has the recess with rack shaft 12 and digital display slide caliper 16's blade matched with.
The bottom plate 21, bottom plate 21 one end is opened has the V-arrangement groove, and the other end mills the plane, and plane and cylinder are in the coplanar with two butt positions in V-arrangement groove, still opens the recess that can accept support 13 platform at the one end that mills the plane, and the side of bottom plate 21 is opened has the screw hole that is used for installing arc 23.
The arc 23, the one end of arc 23 is opened has the through-hole, and the other end is opened has the arc groove corresponding with the appearance.
The bottom end of the big head pin is a threaded column, a cylindrical pin and a screw head matched with the arc-shaped groove of the arc-shaped plate 23 extend along the axis of the threaded column in sequence, wherein the height of the cylindrical pin is smaller than the thickness of the arc-shaped plate 23.
The assembling process comprises the following steps: firstly, screwing a rack shaft 12 at one end of a base 11, then enabling a groove of a support 13 to be in sliding connection with the rack shaft 12, then placing a gear 14 in the groove, enabling the gear 14 to be meshed with the rack shaft 12, fixing the gear 14 in the support 13 through a hand wheel 15, then installing a locking device 17 on the side face of the support 13, then installing a ruler body of a digital vernier caliper 16 on the base 11 through a screw, installing a vernier of the digital vernier caliper 16 on the support 13, then installing a fixed block 19 above the ruler body of the digital vernier caliper 16 and the rack shaft 12, then installing a scientific calculator 18 at the other end of the base 11, and then electrically connecting the scientific calculator 18 with the vernier of the digital vernier caliper 16 through a lead, thus finishing the assembly of the measuring device 1; then, the arc-shaped plate 23 is installed on the bottom plate 21 through a big-end pin, one end of the sine gauge 22 is placed in a V-shaped groove of the bottom plate 21, the other end of the sine gauge 22 is placed on the plane of the bottom plate 21, the sine gauge 22 is connected with the arc-shaped plate 23 through the big-end pin, the sine gauge 22 is hinged with the bottom plate 21, and the assembly of the angle table 2 is completed; then, the measuring device 1 and the angle table 2 are placed on the same working plane, the platform of the support 13 is placed in the groove of the base plate 21, and the upper surface of the platform of the support 13 is abutted against the end of the sine gauge 22, thereby completing the assembly of the angle measuring tool.
The working principle is as follows: firstly, a platform of a support 13 is placed in a groove of a bottom plate 21, the upper surface of the platform of the support 13 is abutted against the end part of a sine gauge 22, then a logarithmic vernier caliper 16 is zeroed, then stop plates are installed around the sine gauge 22 according to the requirements of a workpiece, then as shown in fig. 2, a workpiece 4 to be measured is placed on the sine gauge 22, then a hand wheel 15 is rotated, the support 13 and the sine gauge 22 are lifted until the upper edge line of the workpiece is parallel to the bottom surface of the bottom plate 21, then errors at two ends of the workpiece 4 to be measured are continuously measured through a torsion spring micrometer 3, the height is continuously adjusted through the hand wheel 15 until the errors at two ends of the workpiece 4 to be measured are within a preset value, then a scientific calculator 18 is started, and at the moment, the angle of the workpiece 4 to be measured is displayed on a display screen of the scientific calculator 18.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (8)
1. An angle measuring tool, comprising: the device comprises a measuring device (1) and an angle table (2) which is arranged on the same working plane with a measuring component;
the measuring device (1) comprises: the rack gear rack comprises a base (11), a rack shaft (12) in threaded connection with one end of the base (11), a bracket (13) in sliding connection with the rack shaft (12), a gear (14) installed in the bracket (13) and meshed with the rack shaft (12), a hand wheel (15) rotationally connected with the bracket (13), a vernier caliper installed in a matched mode with the rack shaft (12), a locking device (17) installed on the bracket (13) and matched with the rack shaft (12), and a scientific calculator (18) installed on the base (11);
wherein, one end of the bracket (13) extends to the outside of the base (11) with a platform; a connecting shaft extends along the axis of the hand wheel (15), and the connecting shaft passes through the bracket (13) and is fixedly connected with the gear (14); the body of the digital display vernier caliper (16) is fixedly connected with the base (11), the vernier is fixedly connected with the bracket (13), and the scientific calculator (18) is electrically connected with the vernier of the digital display vernier caliper (16);
the angle table (2) comprises: the sine gauge comprises a bottom plate (21) and a sine gauge (22) hinged with the bottom plate (21) through an arc-shaped plate (23); the bottoms of the two ends of the sine gauge (22) are cylindrical shafts, and the cylindrical shafts at the two ends are abutted to the bottom plate (21);
the base (11) and the bottom plate (21) are arranged on the same working plane, and when the support (13) is abutted to the base (11), the cylinders at the two ends of the sine gauge (22) are tangent to the plane where the platform of the support (13) is located.
2. An angle measuring tool according to claim 1, characterized in that the top end of the body of the digital vernier caliper (16) and the top end of the rack shaft (12) are fixedly connected by a fixing block (19).
3. An angle measuring tool according to claim 1, characterized in that the locking device (17) is a knob plunger, wherein the knob plunger is screwed to the bracket (13), the top end of the knob plunger is a handle, and the bottom end of the knob plunger abuts against the rack shaft (12).
4. An angle measuring tool according to claim 1, characterized in that the base plate (21) is provided with a V-shaped groove at a position above the end of the base plate away from the measuring device (1) and abutting against the sine gauge (22), and two inclined surfaces of the V-shaped groove abut against a cylinder at the end of the sine gauge (22) away from the measuring device (1).
5. An angle measuring tool according to claim 1, characterized in that the end of the base plate (21) near the measuring device (1) is provided with a groove, the width and length of which is larger than the platform of the holder (13).
6. An angle measuring tool according to claim 3, characterized in that the sine gauge (22) has threaded holes for mounting stop plates on its four sides.
7. An angle measuring tool according to claim 1, characterized in that the arc plate (23) is provided with a through hole at one end and an arc slot at the other end, and the sine gauge (22) is slidably connected with the arc slot through a pin.
8. An angle measuring tool according to claim 7, wherein the pin has a screw head at one end, a threaded post at the other end, and a cylindrical pin at the middle, wherein the height of the cylindrical pin is less than the thickness of the arc plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920837077.2U CN209820379U (en) | 2019-06-05 | 2019-06-05 | Angle measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920837077.2U CN209820379U (en) | 2019-06-05 | 2019-06-05 | Angle measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820379U true CN209820379U (en) | 2019-12-20 |
Family
ID=68884097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920837077.2U Expired - Fee Related CN209820379U (en) | 2019-06-05 | 2019-06-05 | Angle measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209820379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037517A (en) * | 2019-12-27 | 2020-04-21 | 河海大学常州校区 | Platform for manufacturing part beveling |
| CN113532478A (en) * | 2021-07-19 | 2021-10-22 | 郑州大学 | Method for calibrating inclinometer by utilizing calibration device |
| CN114251995A (en) * | 2020-09-25 | 2022-03-29 | 富准精密模具(嘉善)有限公司 | Detection device |
-
2019
- 2019-06-05 CN CN201920837077.2U patent/CN209820379U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037517A (en) * | 2019-12-27 | 2020-04-21 | 河海大学常州校区 | Platform for manufacturing part beveling |
| CN114251995A (en) * | 2020-09-25 | 2022-03-29 | 富准精密模具(嘉善)有限公司 | Detection device |
| CN113532478A (en) * | 2021-07-19 | 2021-10-22 | 郑州大学 | Method for calibrating inclinometer by utilizing calibration device |
| CN113532478B (en) * | 2021-07-19 | 2023-11-07 | 郑州大学 | Method for calibrating inclinometer by using calibration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191220 Termination date: 20200605 |