CN201389893Y

CN201389893Y - digital angle ruler

Info

Publication number: CN201389893Y
Application number: CN200920147344U
Authority: CN
Inventors: 张延琛; 杨忠义
Original assignee: Dongguan Terma Electronics Co ltd
Current assignee: Dongguan Terma Electronics Co ltd
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-01-27
Anticipated expiration: 2019-04-22

Abstract

The utility model discloses a digital display angle ruler, which comprises an upper measuring arm, a lower measuring arm, a rotation angle sensor and a display; the upper measuring arm and the lower measuring arm are relatively rotatable around the center of the rotation angle sensor; and according to the rotation angle signal between the upper measuring arm and the lower measuring arm output by the rotation angle sensor, the display displays corresponding reading. The digital display angle ruler is provided with the keys, can realize the functions of starting up, shutting down, resetting at any position and locking the numerical value of the liquid crystal display, is particularly suitable for adjusting the angle of the saw blade relative to the workbench on a woodworking sawing machine besides being used for measuring common angles, and is an angle measuring instrument with high precision, high reliability and economy.

Description

Digit Display Angle Ruler

Technical field

The utility model relates to Angle Measuring Equipment, relates in particular to a kind of Digit Display Angle Ruler.

Background technology

Sawing machine is a kind of woodworking machinery commonly used, in use needs to adjust the saw blade angle according to the difference of workpiece.Present widely used wood sawing machine, saw blade marks by groove with respect to the angle of workbench.Particularly, a main groove is arranged on the turntable of saw blade place; A series of angle grooves are arranged on the workbench, and its resolution ratio is 1 °; During use, read the relative angle of saw blade with respect to workbench by the angle groove on the main groove alignment work platform on the turntable of saw blade place.This mode reading is convenient, fast inadequately, and the angle of measuring is very coarse, causes the angle that processes accurate inadequately.

The utility model content

The utility model purpose is, a kind of Digit Display Angle Ruler is provided, and can obtain the rotational angle of measurand convenient, fast, exactly.

For solving above technical problem, the Digit Display Angle Ruler that the utility model provides comprises and measures upper arm, measurement underarm, angular sensor and display; Described measurement upper arm and described measurement underarm can relatively rotate around the center of described angular sensor; According to the measurement upper arm of described angular sensor output and the rotational angle signal between the measurement underarm, described display shows corresponding reading.

Preferably, described measurement underarm is fixed with rotating shaft; The part of described angular sensor is fixed in the described rotating shaft, and another part is fixed on the described measurement upper arm.

Preferably, an outer side edges middle part of described measurement upper arm is provided with a ledge, and described ledge is provided with a through hole, and the center of circle of described through hole is the pivot of described measurement upper arm and described measurement underarm.

Preferably, except that described ledge, the outer side edges of described measurement upper arm is by the pivot of described measurement upper arm and described measurement underarm.

Preferably, on the described measurement underarm at least one locking device is installed.

Preferably, described locking device is made up of the latch segment, the nut that are installed in described measurement underarm bottom and the screw rod, the locking nut that are installed in described measurement underarm top; Described latch segment, latch segment nut and described screw rod fuse; During locking, described latch segment rotates with described screw rod, and simultaneously, described locking nut is fixed on described latch segment required arbitrarily angled by described screw rod.

Preferably, described locking device is made up of with the screw rod, the locking nut that are installed in described measurement underarm top the latch segment that is installed in described measurement underarm bottom, latch segment screw post, locking lever; Described latch segment is fixed on the described locking lever by latch segment screw post, and the described screw rod of described locking lever fuses; During locking, the described latch segment of described locking lever actuated rotates with described screw rod, and simultaneously, described locking nut is fixed on described latch segment required arbitrarily angled by described screw rod.

Preferably, also comprise controller, be used to control described Digit Display Angle Ruler start, shutdown, optional position zero clearing and the locking of display numerical value.

Preferably, described controller is a button, is arranged on the described display.

Preferably, described display comprises LCDs.

Compared with prior art, the utility model Digit Display Angle Ruler detects by anglec of rotation displacement transducer and measures upper arm and the angle that relatively rotates of measuring underarm, and can obtain the rotational angle data of measurand accurately; Simultaneously, institute's measurement result can be read on display in real time, and is easy to operate.

Description of drawings

Fig. 1 is the schematic diagram of the utility model Digit Display Angle Ruler first embodiment;

Fig. 2 is the schematic diagram of the utility model Digit Display Angle Ruler second embodiment.

The specific embodiment

Basic design of the present utility model is anglec of rotation displacement transducer to be set, by detecting the rotational angle data that angle is obtained measurand that relatively rotate of measuring upper arm and measuring upper arm.

Be described below in conjunction with accompanying drawing and specific embodiment.

Referring to Fig. 1, this figure is the schematic diagram of the utility model Digit Display Angle Ruler first embodiment.The utility model Digit Display Angle Ruler as shown in Figure 1 is made up of parts such as measuring upper arm 1, measurement underarm 2, angular sensor 3, display 4, button 5, latch segment 6, latch segment nut 7, screw rod 8, locking nut 9, rotating shaft 10, wherein:

Measuring upper arm 1 can relatively rotate around anglec of rotation displacement transducer 3 centers with measurement underarm 2; Angular sensor 3 is a prior art, can be to hold grid angular transducer, magnetic grid angular transducer, inductance angular transducer, optoelectronic angle sensor etc., guarantees during type selecting that angle measurement accuracy gets final product; Display 4 is built-in with the chip of analog-digital converter or other type, shows reading after converting sensor signal to suitable form, and preferably, display 4 is a LCD; Button 5 can integrate with display 4 as measuring control; Latch segment 6, latch segment nut 7, screw rod 8, locking nut 9 are used for measurement underarm 2 and measurand locking, and be accurate with what guarantee to measure; Rotating shaft 10 is for the installation of anglec of rotation displacement transducer 3 is provided convenience.

As shown in Figure 1, be fixed with rotating shaft 10 on the underarm 2; The part of anglec of rotation displacement transducer 3 is fixed in the rotating shaft 10, and another part is fixed on to be measured on the upper arm 1; Thus, make that measuring upper arm 1 can relatively rotate around anglec of rotation displacement transducer 3 centers with measurement underarm 2.

When measuring upper arm 1 and measuring underarm 2 and relatively rotate, sensor 3 also relatively rotates, its in relative rotation angle with measure between upper arm 1 and the measurement underarm 2 to relatively rotate angle corresponding; This angle is sent to demonstration on the display 4 after being exported by sensor 3.

During use, Digit Display Angle Ruler is measured the ledge in upper arm 1 outside and put into the middle breaking part of wood sawing machine baffle plate; Make the plate washer of the outer side edges of measurement upper arm 1 near wood sawing machine, the latch segment 6 of Digit Display Angle Ruler measurement underarm 2 downsides is put into the groove on the sawing machine turntable; Use a square with Digit Display Angle Ruler school zero again; Rotate one of them screw rod 8 then, make the both sides of the both sides of latch segment 6, and lock corresponding locking nut 9 near the groove on the sawing machine turntable; At last, use with quadrat method adjust next the group locking device.Like this, when the sawing machine turntable when workbench turns over an angle, measure upper arm 1 and measure underarm 2 and relatively rotate same angle.This angle shows on LCD, thereby can obtain tested rotational angle data convenient, fast, exactly.

The utility model is by adopting high accuracy anglec of rotation displacement transducer, and its resolution ratio reaches 0.05 °, the angle adjustment of saw blade and workbench can be arrived position very accurately.Further, button 5 is set, realizes control functions such as start, shutdown, optional position zero clearing, the locking of display numerical value, easy to operate.

See also Fig. 2, this figure is the schematic diagram of the utility model Digit Display Angle Ruler second embodiment.Identical with first embodiment, this Digit Display Angle Ruler also comprises parts such as measuring upper arm 1, measurement underarm 2, angular sensor 3, LCD 4, button 5; Difference is that locking device is made up of latch segment 6, latch segment screw post 14, locking lever 15, screw rod 8, locking nut 9 etc.

During use, Digit Display Angle Ruler is measured the ledge of upper arm 1 outer side edges and put into the middle breaking part of wood sawing machine baffle plate, make the plate washer of the outer side edges of measurement upper arm near wood sawing machine, the latch segment 6 of Digit Display Angle Ruler measurement underarm 2 downsides is put into the groove on the sawing machine turntable; Use a square with multifunctional digital bevel protractor school zero again; Because tie down screw 8 fuses with locking lever 15, during rotation lock screw rod 8, locking lever 15 is along with rotation, and locking lever 15 drives latch segment 6 and rotates together; When the both sides of latch segment 6 during near the both sides of the groove on the sawing machine turntable, locking locking nut 9.When the sawing machine turntable when workbench turns over an angle, measure long-armed 1 and relatively rotate same angle with measuring underarm 2, on display, show corresponding readings at last.

This Digit Display Angle Ruler is specially adapted to carry out on the wood sawing machine angle adjustment of the relative workbench of saw blade except that being used for general angular surveying, be a kind of high accuracy, high reliability, the angle measuring instrument of economy.

Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. A digital display angle ruler, characterized in that it includes a measuring upper arm, a measuring lower arm, a rotation angle sensor and a display; the measuring upper arm and the measuring lower arm can rotate relatively around the center of the rotating angle sensor; The output of the rotation angle sensor measures the rotation angle signal between the upper arm and the lower arm, and the display shows corresponding readings.

2. The digital display angle ruler according to claim 1, wherein the measuring lower arm is fixed with a rotating shaft; a part of the rotation angle sensor is fixed on the rotating shaft, and another part is fixed on the measuring upper arm.

3. The digital display angle ruler according to claim 1, characterized in that: a protruding part is provided in the middle of an outer side of the measuring upper arm, and a through hole is provided in the protruding part, and the center of the through hole is The center of rotation of the measuring upper arm and the measuring lower arm.

4. The digital display angle ruler according to claim 1, characterized in that, except for the protruding part, the outer side of the upper measuring arm passes through the rotation center of the upper measuring arm and the lower measuring arm.

5. The digital display angle gauge according to claim 1, characterized in that at least one locking device is installed on the lower measuring arm.

6. The digital display angle ruler according to claim 5, wherein the locking device is composed of a locking block and a nut installed at the bottom of the lower measuring arm, a screw rod and a lock installed at the upper part of the lower measuring arm. lock nut; the locking block, the locking block nut and the screw rod are integrated; when locking, the locking block rotates with the screw rod, and at the same time, the lock nut locks the screw rod through the screw rod The locking block is fixed at any desired angle.

7. The digital display angle ruler according to claim 5, characterized in that, the locking device consists of a locking block installed at the bottom of the measuring lower arm, a screw column of the locking block, a locking lever and a locking lever installed on the Measuring the screw on the upper part of the lower arm and the locking nut; the locking block is fixed on the locking lever through the locking block screw column, and the locking lever and the screw are connected together; when locked, the The locking lever drives the locking block to rotate with the screw rod, and at the same time, the locking nut fixes the locking block at any desired angle through the screw rod.

8. The digital display angle ruler according to claim 1, further comprising a controller for controlling the digital display angle ruler to be turned on and off, reset to zero at any position and lock the value of the display.

9. The digital display angle gauge according to claim 8, wherein the controller is a button and is arranged on the display.

10. The digital display angle gauge according to any one of claims 1-9, wherein the display comprises a liquid crystal display.