Center and vertical deviation marking instrument based on eccentric calibration light source

Abstract

The invention relates to a center and vertical deviation marking instrument based on an eccentric calibration light source, and belongs to the technical field of marking instrument devices. Comprising a laser set fixing frame, a hollow transparent annular graduated scale is arranged above the laser set fixing frame, two holding mechanisms used for holding an object to be measured are arranged in the laser set fixing frame and symmetrically distributed on the two sides of the object to be measured, and two or four laser arms fixed to the laser set fixing frame are arranged on the outer sides of the holding mechanisms. The horizontal included angle between every two adjacent laser arms is 90 degrees; one end, close to the object to be measured, of the laser arm is provided with a plumb point transmitting device used for checking the deviation degree of the object to be measured and a ground plumb line. Compared with the prior art, the method solves the problem that the point on the axis of the geometry (such as a cylinder or a barrel) with the centrosymmetric or axisymmetric sectional area cannot be accurately marked in the reverse direction of the light direction by arranging the central light source.

Description

Technical Field

[0001] The present invention relates to a center and vertical deviation annotator based on an eccentric calibration light source, belonging to the annotator device. Background Art

[0002] Currently, it can be widely applied to many fields such as chemical production, machining and manufacturing, especially the axis line positioning and annotation in fields such as visual canning, friction welding of metal parts, and precise butt joint of metal workpieces. It is often necessary to accurately annotate the axis position of axially symmetric or centrosymmetric geometric bodies such as cylinders or cylindrical bodies and whether they are in the vertical state. In particular, for some scenarios where it is impossible to use a center light source to mark the center point in the light irradiation direction, there is currently no annotator device for marking cylinders or cylindrical bodies.

[0003] The Chinese utility model patent with the publication number CN216049856U discloses a portable laser locator, which includes a spirit level, a laser emitter, and a cross ruler. The laser emitter is installed in the center of the cross ruler, and the spirit level is installed on the cross ruler in two perpendicular directions. The present utility model can emit a beam from the laser emitter through the emission hole, adjust the equal distance in four directions and the spirit level to be centered, and can quickly center the center point of the center stake. For a plumb bob that does not have a portable laser locator, it can conveniently and inexpensively achieve laser centering. And because of its small size and easy to carry, it is more convenient for users to operate. The present utility model has a simple structure, is convenient to carry, practical, low-cost, and has a good centering effect.

[0004] The above patent can quickly center the center point of the center stake and cannot annotate cylinders or cylindrical bodies. Therefore, it is of great practical significance to realize an instrument that is convenient to carry and can use an eccentric light source to annotate the points on the axis and the degree of vertical line deviation of axially symmetric or centrosymmetric geometric bodies such as cylinders or cylindrical bodies of different sizes. Summary of the Invention

[0005] Technical Objective: In order to overcome the deficiencies in the prior art, the present invention provides a center and vertical deviation annotator based on an eccentric calibration light source.

[0006] Technical Solution: To achieve the above objective, the present invention discloses a center and vertical deviation annotator based on an eccentric calibration light source.

[0007] A center and vertical deviation annotator based on an eccentrically calibrated light source, comprising a laser group fixing frame, above which there is a hollow transparent circular scale, inside the laser group fixing frame there are two clamping mechanisms for clamping the object to be measured, the two clamping mechanisms are symmetrically distributed on both sides of the object to be measured, and on the outside of the clamping mechanisms there are two or four laser arms fixed to the laser group fixing frame, and the horizontal angle between adjacent two laser arms is 90 degrees; at one end of the laser arm close to the object to be measured there is a plumb point emitting device for checking the deviation degree of the object to be measured from the ground plumb line.

[0008] Preferably, at one end of each laser arm far from the object to be measured there is also a laser line scanning generating device for annotating the center point of the object to be measured.

[0009] Preferably, each clamping mechanism includes a driving motor, two clamping jaws, a first driving spur gear, two first driven spur gears and a connecting frame. There is a connecting frame on the laser group fixing frame, at the top outside of the connecting frame there is a driving motor connected, the output shaft of the driving motor penetrates inside the connecting frame and is connected to the first driving spur gear, the first driving spur gear is simultaneously meshed and connected with the first driven spur gears on its both sides, and on the two first driven spur gears there are clamping jaws for clamping the object to be measured.

[0010] Preferably, each clamping mechanism includes two magnets fixed to the connecting frame, the two magnets are symmetrically arranged on the outer periphery of the object to be measured, and the magnetic pole directions of the two magnets are opposite.

[0011] Preferably, on the laser arm there is an adjusting mechanism for adjusting its vertical angle, the adjusting mechanism includes an adjusting motor fixed to the outside of the laser group fixing frame, the output shaft of the adjusting motor is connected to a second driving spur gear, the second driving spur gear is meshed and connected with a second driven spur gear, outside the second driven spur gear there is a connecting rod, the connecting rod is connected to the laser arm, the adjusting motor is electrically connected to a motor driver, the motor driver is electrically connected to a PLC, and the PLC is electrically connected to a display screen.

[0012] Preferably, the object to be measured is a cylinder or a cylinder body.

[0013] Preferably, the cross-sectional shape of the laser group fixing frame is one of a circle or a square.

[0014] Preferably, the laser arm is also provided with a power alarm device and a battery unit, the power alarm device is used to remind the staff to charge the power supply in time, and the battery unit is electrically connected to the plumb point emitting device, the laser line scanning generating device and the alarm device.

[0015] Preferably, the laser group fixing frame is an integral type or a split type.

[0016] Preferably, one end of the laser arm close to the object to be measured is higher than the end far from the object to be measured.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] 1. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. By setting a transparent circular scale and a plumb point emitting device, it can be determined which quadrant the object to be measured (such as a cylinder or a circular cylinder) falls into according to the scale on which the laser line A is projected on the transparent circular scale (the circular scale is divided into four quadrants by the x-axis and the y-axis), and the deviation degree of the object to be measured from the plumb line can be checked. The transparent circular scale is set as a transparent structure for clear observation of the scale. When there is no deviation, the vertical light spots should respectively fall on the x-axis and the y-axis.

[0019] 2. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. By setting a laser arm and a laser scanning line generating device, the center point of the object to be measured can be located and the points on the axis of the object to be measured can be marked according to the intersection point of the cross-shaped light rays formed by the projection of the laser line B directly below the object to be measured, realizing fast and accurate marking, and solving the problem that it is impossible to accurately mark the points on the axis of a geometric body with a cross-sectional area that is centrosymmetric or axially symmetric (such as a cylinder or a cylinder) in the reverse direction of the light ray direction by setting a central light source.

[0020] 3. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. Through the clamping mechanism, the clamping mechanism can hold the object to be measured, so that there will be no relative sliding displacement, facilitating the stability of subsequent marking.

[0021] 4. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. By setting an adjustment mechanism, the adjustment motor drives the laser arm to rotate and thus synchronously open the same angle. The cross-shaped light ray is a certain point on the axis of the centrosymmetric object to be measured, and the position of the point moves along the axis with the opening angle of the laser arm. The adjustment motor can realize the opening of the laser arm at any angle through the motor driver, the PLC and the display screen.

[0022] 5. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. By setting clamping jaws, it is convenient to mark objects to be measured with different sizes, improving the versatility and operation flexibility of the marking instrument. In addition, it is also convenient to carry.

[0023] 6. The present invention provides a center and vertical deviation marking instrument based on an eccentric calibration light source. By setting an alarm device, it can timely remind the user to charge in time during the use of the instrument to ensure the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1Structural schematic of the center and vertical deviation marker based on the eccentric calibration light source of the present invention Figure 1 ;

[0025] Figure 2 Structural schematic of the center and vertical deviation marker based on the eccentric calibration light source of the present invention Figure 1 (Remove the transparent circular scale);

[0026] Figure 3 Top view of the center and vertical deviation marker based on the eccentric calibration light source of the present invention;

[0027] Figure 4 Bottom view of the center and vertical deviation marker based on the eccentric calibration light source of the present invention;

[0028] Figure 5 Schematic diagram of the principle when the center and vertical deviation marker based on the eccentric calibration light source of the present invention marks a point on the axis of the object to be measured;

[0029] Figure 6 Schematic diagram of the principle when the center and vertical deviation marker based on the eccentric calibration light source of the present invention marks the vertical line of the object to be measured with the ground;

[0030] Figure 7 Circuit schematic diagram of the adjustment mechanism when the center and vertical deviation marker based on the eccentric calibration light source of the present invention marks the vertical line of the object to be measured with the ground.

[0031] In the figure, 1. Laser group fixing frame; 2. Transparent circular scale; 3. Clamping mechanism; 31. Driving motor; 32. Claw; 33. First driving spur gear; 34. First driven spur gear; 35. Connecting frame; 4. Laser arm; 5. Object to be measured; 6. Plumb point emitting device; 7. Laser scanning line generating device; 8. Adjustment mechanism; 81. Adjustment motor; 82. Second driving spur gear; 83. Second driven spur gear; 84. Connecting rod. Specific implementation mode

[0032] The following combines the attached Figure 1 to the attached Figure 7 Describe the principles and features of the present invention. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] Example 1

[0034] An eccentric calibration light source-based center and vertical deviation marking instrument, comprising a laser group fixing bracket 1. Above the laser group fixing bracket 1, there is a hollow transparent circular scale 2. Inside the laser group fixing bracket 1, there are two clamping mechanisms 3 for clamping the object to be measured 5. The two clamping mechanisms 3 are symmetrically distributed on both sides of the object to be measured 5. On the outer side of the clamping mechanism 3, there are two or four laser arms 4 fixed to the laser group fixing bracket 1, and the horizontal angle between adjacent two laser arms 4 is 90 degrees; at one end of the laser arm 4 close to the object to be measured 5, there is a plumb point emitting device 6 for checking the deviation degree of the object to be measured 5 from the ground plumb line.

[0035] Embodiment 2

[0036] At one end of each laser arm 4 far from the object to be measured 5, there is also a laser line scanning generating device 7 for marking the center point of the object to be measured 5.

[0037] Embodiment 3

[0038] Each clamping mechanism 3 includes a driving motor 31, two clamping jaws 32, a first driving spur gear 33, two first driven spur gears 34 and a connecting frame 35. On the laser group fixing bracket 1, there is a connecting frame 35. At the top of the outer side of the connecting frame 35, there is a driving motor 31 connected. The output shaft of the driving motor 31 penetrates through the inside of the connecting frame 35 and is connected to the first driving spur gear 33. The first driving spur gear 33 is simultaneously meshed and connected with the first driven spur gears 34 on both sides of it. On the two first driven spur gears 34, there are clamping jaws 32 for clamping the object to be measured 5.

[0039] Embodiment 4

[0040] Each clamping mechanism 3 includes two magnets fixed to the connecting frame 35. The two magnets are symmetrically arranged on the outer periphery of the object to be measured 5. The magnetic pole directions of the two magnets are opposite, and a mutual attraction force is generated between the two magnets to clamp the object to be measured 5.

[0041] Embodiment 5

[0042] On the laser arm 4, there is an adjusting mechanism 8 for adjusting its vertical angle. The adjusting mechanism 8 includes an adjusting motor 81 fixed to the outer side of the laser group fixing bracket 1. The output shaft of the adjusting motor 81 is connected to a second driving spur gear 82. The second driving spur gear 82 is meshed and connected with a second driven spur gear 83. On the outer side of the second driven spur gear 83, there is a connecting rod 84. The connecting rod 84 is connected to the laser arm 4; the adjusting motor 81 is electrically connected to a motor driver, the motor driver is electrically connected to a PLC, and the PLC is electrically connected to a display screen.

[0043] The object to be measured 5 is a cylinder or a cylinder body.

[0044] The cross-sectional shape of the laser group fixing frame 1 is one of circular or square.

[0045] Embodiment Six

[0046] The laser arm 4 is also provided with a power alarm device and a battery unit. The power alarm device is used to remind the staff to charge the power supply in time. The battery unit is electrically connected to the plumb point emitting device 6, the laser line scanning device 7, and the power alarm device.

[0047] The laser group fixing frame 1 is of an integral or split type.

[0048] Embodiment Seven

[0049] One end of the laser arm 4 close to the object to be measured 5 is higher than the end far from the object to be measured 5.

[0050] The working principle of the present invention is as follows:

[0051] Before marking the object to be measured 5, the clamping mechanism 3, according to the size of the object to be measured 5, turns on the power switch (not shown in the figure), drives the driving motor 31 to drive the first driving spur gear 33 to rotate. The first driving spur gear 33 drives the two first driven spur gears 34 to rotate simultaneously. The first driven spur gear 34 drives the clamping jaws 32 to clamp the object to be measured 5, facilitating the stability of subsequent marking. The adjusting motor 81 drives the second driving spur gear 82 to rotate. The second driving spur gear 82 drives the second driven spur gear 83 to rotate. The second driven spur gear 83 drives the connecting rod 84 to rotate. The connecting rod 84 drives each laser arm 4 to expand to the same angle (with an accuracy of 0.01 mm). The length of the laser arm 4 can be set as a telescopic structure to facilitate the adjustment of its length. Select the button for center point marking, and the plumb point emitting device 6 can be activated to emit the laser line A. The laser line A hits the transparent circular scale 2. Through the distance on the transparent circular scale 2, the deviation degree of the object to be measured 5 from the plumb line of the ground can be judged. If the scale values of the laser lines A projected on the transparent circular scale 2 on the four laser arms 4 are the same, it means that the object to be measured 5 is on the plumb line. Otherwise, it deviates to the side with the smallest scale value, which is a non-vertical state. The scale deviation is the deviation amount in the vertical direction. When in use, an imaging medium needs to be set in the marked direction to clearly observe the cross point of the cross-shaped light rays formed by the laser lines and the plumb point (forming the cross point of the cross-shaped light rays and the plumb point on the imaging medium, so as to perform accurate marking operations).

[0052] In addition, if the laser group fixing frame 1 adopts a split and combined fixing frame, its left and right parts are respectively placed on both sides of the object to be measured 5, and then docked and locked; if it adopts a sleeved support fixing frame, it is sleeved from the front end of the object to be measured 5 and fixed.

[0053] The user inputs the desired opening angle of the laser arm 4 through the display screen. The PLC receives the input information and calculates the angle by which the adjustment motor 81 needs to rotate. The PLC sends a control signal to the motor driver. The motor driver drives the adjustment motor 81 to rotate according to the control signal, driving the laser arm 4 to reach the predetermined angle. When the laser arm 4 reaches the predetermined angle, the laser line scanning device 7 emits a laser line B. The laser line B forms a cross-shaped light beam directly below the object 5 to be measured, and the intersection point is a certain point on the axis of the object 5 to be measured. By changing the opening angle of the laser arm 4, the position of the intersection point of the cross-shaped light beam can be moved along the axis of the object 5 to be measured. By adjusting the motor 81 to drive the laser arm 4 to rotate and synchronously open the same angle, the device can efficiently and accurately complete the marking task, improving production efficiency and marking accuracy.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A center and vertical deviation marking instrument based on an eccentric calibration light source, comprising a laser group fixing frame (1), characterized in that: A hollow transparent annular scale (2) is provided above the laser group fixing frame (1); two clamping mechanisms (3) for clamping the object to be measured (5) are provided inside the laser group fixing frame (1); the two clamping mechanisms (3) are symmetrically distributed on both sides of the object to be measured (5); two or four laser arms (4) fixed to the laser group fixing frame (1) are provided on the outside of the clamping mechanisms (3); and the horizontal angle between two adjacent laser arms (4) is 90 degrees; and a plumb point emitting device (6) for checking the degree of deviation between the object to be measured (5) and the ground plumb line is provided at one end of the laser arm (4) close to the object to be measured (5).

2. The center and vertical deviation marking instrument based on the eccentric calibration light source according to claim 1, characterized in that: Each of the laser arms (4) is also provided with a laser scanning line generating device (7) for marking the center point of the object (5) to be measured at one end away from the object to be measured (5).

3. The center and vertical deviation marking instrument based on the eccentric calibration light source according to claim 1, characterized in that: Each of the clamping mechanisms (3) comprises a driving motor (31), two clamping claws (32), a first active spur gear (33), two first driven spur gears (34) and a connecting frame (35). The laser group fixing frame (1) is provided with a connecting frame (35). The top of the outer side of the connecting frame (35) is connected with the driving motor (31). The output shaft of the driving motor (31) passes through the interior of the connecting frame (35) and is connected to the first active spur gear (33). The first active spur gear (33) is meshedly connected with the first driven spur gears (34) on both sides thereof. The two first driven spur gears (34) are provided with clamping claws (32) for clamping the object to be measured (5).

4. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: Each of the clamping mechanisms (3) comprises two magnets fixed on a connecting frame (35), the two magnets are symmetrically arranged on the periphery of the object to be measured (5), and the magnetic poles of the two magnets are in opposite directions.

5. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: The laser arm (4) is provided with an adjustment mechanism (8) for adjusting its vertical angle, the adjustment mechanism (8) comprising an adjustment motor (81) fixed to the outside of the laser group fixing frame (1), the output shaft of the adjustment motor (81) is connected to the second active spur gear (82), the second active spur gear (82) is meshedly connected to the second driven spur gear (83), a connecting rod (84) is provided on the outside of the second driven spur gear (83), and the connecting rod (84) is connected to the laser arm (4); the adjustment motor (81) is electrically connected to a motor driver, the motor driver is electrically connected to a PLC, and the PLC is electrically connected to a display screen.

6. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: The object to be measured (5) is a cylinder or a barrel.

7. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: The cross-sectional shape of the laser group fixing frame (1) is one of a circle and a square.

8. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: The laser arm (4) is also provided with a power alarm device and a battery unit. The power alarm device is used to remind the staff to charge the power supply in time. The battery unit is electrically connected to the plumb point emission device (6), the laser scanning line generation device (7) and the power alarm device.

9. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 1, characterized in that: The laser group fixing frame (1) is of an integral type or a separate type.

10. The center and vertical deviation marking instrument based on an eccentric calibration light source according to claim 2, characterized in that: The end of the laser arm (4) close to the object to be measured (5) is higher than the end far from the object to be measured (5).

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