High-precision laser deviation correction sensor

Abstract

The utility model discloses a high-precision laser deviation correction sensor. The laser deviation correction sensor comprises a base and two groups of opposite laser emitters and laser receivers which are connected to the base, wherein laser rays emitted by the two laser emitters are vertically crossed with each other; a first laser lens is installed at the front end of a first shell of the laser transmitter, the rear end of the first shell is connected with a first positioning pipe sleeve through an interference shaft sleeve, a shaft sleeve of the first positioning pipe sleeve is connected with a transmitter body, and laser is emitted to a laser receiver through a front guide hole of the first positioning pipe sleeve and the first laser lens; a second laser lens is installed at the front end of a second shell of the laser receiver, a middle interference shaft sleeve is connected with a second positioning pipe sleeve, a laser receiving plate is installed at the rear end of the second shell, a light guide device installed on the second positioning pipe sleeve is provided with a slender and narrow light guide hole, and laser is received by the laser receiving plate through the second laser lens and the light guide hole. The deviation rectifying device has the advantages of being high in deviation rectifying precision, good in consistency, high in deviation rectifying efficiency and free of influence of external natural light.

Description

Technical Field

[0001] The utility model relates to the field of tool measurement and deviation correction, in particular to a high-precision laser deviation correction sensor. Background Art

[0002] In areas such as dispensing, welding, and robotics, there is a widespread demand for tool measurement and correction. Manual alignment by operators is inefficient. For example, in a two-component dispensing machine, after the dispensing action stops, the glue will solidify in the mixing tube or needle. At this time, the mixing tube and needle need to be replaced. This replacement will cause the position of the mixing tube or needle to shift, requiring re-alignment. Currently, the main industrial correction method on the market is to use cameras for positioning and correction. The correction object is mainly the product itself. Its shortcomings are: first, this method has low correction accuracy, poor consistency, slow correction speed, low production efficiency, and high cost; second, camera photography is affected by external natural light, which may lead to poor correction. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a high-precision laser deviation correction sensor.

[0004] According to one aspect of the utility model, a high-precision laser correction sensor includes: a base and two sets of oppositely arranged laser emitters and laser receivers connected to a plane on the base, wherein the laser beams emitted by the two laser emitters cross each other perpendicularly;

[0005] The first shell of the laser transmitter is connected to one end of the upper surface of the base, the first laser lens is installed at the front end of the inner cavity of the first shell, and the interference sleeve at the rear end of the inner cavity is connected to the first positioning sleeve, and the rear positioning hole sleeve of the first positioning sleeve is connected to the transmitter body. The laser emitted by the transmitter body is emitted to the laser receiver through the front guide hole of the first positioning sleeve and the first laser lens;

[0006] The second shell of the laser receiver is connected to the other end of the upper surface of the base. The second laser lens is installed at the front end of the inner cavity of the second shell, the middle interference sleeve is connected to the second positioning tube sleeve, and the laser receiving plate is installed at the rear end. The light guide installed in the middle of the second positioning tube sleeve is provided with a slender and narrow light guide hole. The laser is received by the laser receiving plate through the second laser lens and the light guide hole.

[0007] In some embodiments, the rear positioning hole of the first positioning sleeve and the emitter body are connected with a small gap.

[0008] In some embodiments, the leading hole is a first frustum-conical hole, and the inner diameter of the first frustum-conical hole is larger than the outer diameter;

[0009] A truncated cone-shaped guide hole is provided at the front end of the second positioning sleeve, and the outer diameter of the guide hole is larger than the inner diameter.

[0010] In some embodiments, the diameter of the light guide hole is 0.2 mm; or the laser frequency of the emitter body is 1 kHz.

[0011] In some embodiments, the device to be corrected is a rotating tool; the rotating tool is any one of a needle, a solder bar, a mixing hose, a knife head and a laser head.

[0012] In some embodiments, when the rotary tool is a rubber mixing tube, a rubber scraping line is further provided at the front end of the base.

[0013] In some embodiments, the base is further provided with a U-shaped detection hole, and the rear end of the base is provided with two U-shaped opening-shaped installation grooves, the lower end of the installation groove is a first connecting through hole, and the threaded member is located in the installation groove and passes through the first connecting through hole.

[0014] In some embodiments, the base is hollow and a circuit board is installed in the inner cavity, and the center of the outer wall is threadedly connected to the electric plug, and the circuit board is electrically connected to the electric plug, the transmitter body and the laser receiving board.

[0015] In some embodiments, the circuit board is further provided with a reverse circuit protection system.

[0016] In some embodiments, the two laser emitters are symmetrically disposed at the left end of the first housing and the two laser emitters are symmetrically disposed at the right end of the first housing.

[0017] The beneficial effects of this high-precision laser correction sensor are: first, the laser emitter is provided with a first positioning sleeve for high-precision positioning and connection to the emitter body, and the laser receiver is provided with a second positioning sleeve for high-precision positioning and connection to the light guide, and the light guide is provided with a slender and narrow light guide hole, which effectively improves the installation accuracy of the emitter body and the light guide itself, thereby improving the correction accuracy, greatly improving the consistency, fastening the correction speed, and improving the production efficiency; second, a guide tube hole is provided to constrain the resolvable diameter of the laser, further improving the correction accuracy, and effectively reducing the cost; third, the use of a laser light source is not affected by external natural light, effectively improving the correction yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of a high-precision laser correction sensor according to one embodiment of the present invention (I);

[0019] Figure 2 for Figure 1 3D schematic diagram of the high-precision laser correction sensor shown (II);

[0020] Figure 3 for Figure 1 The bottom view schematic diagram of the high-precision laser correction sensor shown;

[0021] Figure 4 for Figure 1 A schematic top view of a high-precision laser deflection correction sensor is shown;

[0022] Figure 5 for Figure 4 AA cross-sectional view of the high-precision laser correction sensor shown;

[0023] Figure 6 for Figure 5 A schematic diagram of a group of laser transmitters and laser receivers is shown;

[0024] Base 1, detection hole 10, mounting groove 11, first connecting through hole 12, second connecting hole 13;

[0025] Laser emitter 2, first housing 20, first through hole 200, first positioning sleeve 21, rear positioning hole 211, front guide hole 212, emitter body 22, first laser lens 23;

[0026] Laser receiver 3, second housing 30, second through hole 300, second positioning sleeve 31, guide hole 311, light guide 32, light guide hole 321, laser receiving plate 33, second laser lens 34,

[0027] Electric plug 4, scraper wire 5. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0029] Figures 1 to 6 This schematic diagram shows a high-precision laser deflection sensor according to one embodiment of the present invention. As shown, the device comprises a base 1 and two sets of opposing laser emitters 2 and laser receivers 3 connected to a flat surface on the base 1. The laser beams emitted by the two laser emitters 2 intersect perpendicularly.

[0030] The first housing 20 of the laser transmitter 2 is connected to one end of the upper surface of the base 1. The first laser lens 23 is installed at the front end of the inner cavity of the first housing 20, and the interference sleeve at the rear end of the inner cavity is connected to the first positioning sleeve 21. The rear positioning hole 211 of the first positioning sleeve 21 is connected to the transmitter body 22. The rear positioning hole 211 of the first positioning sleeve 21 and the transmitter body 22 are preferably connected with a small gap. The laser emitted by the transmitter body 22 is directed to the laser receiver 3 through the leading hole 212 of the first positioning sleeve 21 and the first laser lens 23. The frequency of the laser emitted by the transmitter body 22 is preferably 1 kHz, ensuring that the time from blocking the light source to receiving a signal response is the same for each rotating tool, ensuring consistency.

[0031] The second shell 30 of the laser receiver 3 is connected to the other end of the upper surface of the base 1. The second laser lens 34 is installed at the front end of the inner cavity of the second shell 30, the middle interference sleeve is connected to the second positioning sleeve 31, and the laser receiving plate 33 is installed at the rear end. The light guide 32 installed in the middle of the second positioning sleeve 31 is provided with a slender and narrow light guide hole 321. The diameter of the light guide hole 321 is preferably 0.2 mm, which greatly improves the correction accuracy; the laser is received by the laser receiving plate 33 through the second laser lens 34 and the light guide hole 321.

[0032] Among them, a high-precision laser correction sensor is used when the device to be corrected is any one of 3-axis, 4-axis, 5-axis and 6-axis rotary tools; the rotary tool is any one of a needle, solder bar, mixing hose, knife head and laser head.

[0033] The method of using the device is as follows: the laser beams emitted by the two laser emitters 2 are mutually perpendicular X-axis laser beams and Y-axis laser lines. First, use a standard rotating tool (such as a needle, solder bar, mixing hose, tool head and laser head). At the beginning, the rotating tool moves from the starting point toward the X-axis laser beam until it touches the Y-axis laser beam and records the X-axis coordinate value; the needle then moves along the Y-axis laser beam toward the X-axis laser beam until it touches the X-axis laser beam and records the Y-axis coordinate value. In the Z-axis direction, move vertically toward the X-axis laser beam or Y-axis laser line until it touches the X-axis laser beam or Y-axis laser line and records the Z-axis coordinate value to complete the calibration. All subsequent rotating tools move according to this path and record the coordinate values. By comparing with the calibrated coordinate values, the deviation of the needle can be known and automatic deviation correction can be completed.

[0034] The beneficial effects of this high-precision laser correction sensor are: first, the laser emitter 2 is provided with a first positioning sleeve 21 for high-precision positioning and connection to the emitter body 22, and the laser receiver 3 is provided with a second positioning sleeve 31 for high-precision positioning and connection to the light guide 32, and the light guide 32 is provided with a slender and narrow light guide hole 321, which effectively improves the self-installation accuracy of the emitter body 22 and the light guide 32, thereby improving the correction accuracy, greatly improving the consistency, fastening the correction speed, and improving the production efficiency; second, a conduit hole is provided to constrain the resolvable diameter of the laser, further improving the correction accuracy, and effectively reducing the cost; third, the use of a laser light source is not affected by external natural light, effectively improving the correction yield.

[0035] Preferably, the leading hole 212 is a first frustum-shaped hole, and the inner diameter of the first frustum-shaped hole is larger than the outer diameter;

[0036] The front end of the second positioning sleeve 31 is provided with a truncated cone-shaped guide hole 311, the outer diameter of the guide hole 311 being larger than the inner diameter. The beneficial effect is that the truncated cone hole can constrain the resolvable diameter of the laser.

[0037] Preferably, when the rotary tool is a rubber mixing tube, the front end of the base 1 is further provided with a rubber scraping line 5. Its beneficial effect is that in the dispensing industry, it is greatly convenient to handle the residual glue at the end of the needle and improve the correction accuracy.

[0038] Furthermore, the base 1 is provided with a U-shaped detection hole 10. Two U-shaped openings 11 are provided at the rear end of the base 1. The lower ends of the mounting slots 11 are first connection holes 12. Screws are located within the mounting slots 11 and pass through the first connection holes 12 to threadably connect to the device to be corrected. The base 1 is also provided with four second connection holes 13. This arrangement facilitates installation in the optimal detection area and enables effective fixed connection.

[0039] Furthermore, the base 1 is hollow inside and a circuit board is installed in the inner cavity, and an electric plug 4 is threadedly connected to the center of its outer wall. The circuit board is electrically connected to the electric plug 4, the transmitter body 22 and the laser receiving plate 33.

[0040] Preferably, the circuit board is also provided with a reverse circuit protection system, which has the beneficial effect of preventing the circuit from being damaged when the line is connected incorrectly.

[0041] Preferably, first through holes 200 are provided on opposite inner sides of the first shell 20 , and second through holes 300 are provided on opposite inner sides of the second shell 30 .

[0042] Preferably, two laser emitters 2 are symmetrically arranged at the left end of the first housing 20 and two laser emitters 2 are symmetrically arranged at the right end of the first housing 20, and the angle between the laser light emitted by the laser emitters 2 and the horizontal center line is 45 degrees. The beneficial effect is that this arrangement can further improve consistency.

[0043] Furthermore, the upper surface of the base 1 can be machined with high precision to achieve good flatness.

[0044] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A high-precision laser correction sensor, characterized in that: The invention comprises: a base (1) and two groups of laser emitters (2) and laser receivers (3) connected to the upper plane of the base (1) and arranged opposite to each other, wherein the laser beams emitted by the two laser emitters (2) intersect each other perpendicularly; The first shell (20) of the laser emitter (2) is connected to one end of the upper surface of the base (1); a first laser lens (23) is installed at the front end of the inner cavity of the first shell (20); and an interference sleeve is connected to a first positioning sleeve (21) at the rear end of the inner cavity; a sleeve of a rear positioning hole (211) of the first positioning sleeve (21) is connected to the emitter body (22); and the laser emitted by the emitter body (22) is emitted toward the laser receiver (3) through the front guide hole (212) of the first positioning sleeve (21) and the first laser lens (23); The second shell (30) of the laser receiver (3) is connected to the other end of the upper surface of the base (1); a second laser lens (34) is installed at the front end of the inner cavity of the second shell (30); the middle interference sleeve is connected to the second positioning sleeve (31); and a laser receiving plate (33) is installed at the rear end; a light guide (32) installed in the middle of the second positioning sleeve (31) is provided with a slender and narrow light guide hole (321); and the laser is received by the laser receiving plate (33) through the second laser lens (34) and the light guide hole (321).

2. A high-precision laser correction sensor according to claim 1, characterized in that: The rear positioning hole (211) of the first positioning sleeve (21) and the emitter body (22) are connected with a small gap.

3. A high-precision laser correction sensor according to claim 2, characterized in that: The leading hole (212) is a first truncated cone hole, and the inner diameter of the first truncated cone hole is larger than the outer diameter; A truncated cone-shaped guide hole (311) is provided at the front end of the second positioning sleeve (31), and the outer diameter of the guide hole (311) is larger than the inner diameter.

4. A high-precision laser correction sensor according to claim 3, characterized in that: The diameter of the light guide hole (321) is 0.2 mm; or the laser frequency of the transmitter body (22) is 1 kHz.

5. The high-precision laser deviation correction sensor according to claim 1, characterized in that: The device to be corrected is a rotary tool; the rotary tool is any one of a needle, a solder bar, a mixing hose, a knife head and a laser head.

6. The high-precision laser correction sensor according to claim 5, characterized in that: When the rotary tool is a rubber mixing tube, a rubber scraping line (5) is further provided at the front end of the base (1).

7. The high-precision laser correction sensor according to claim 1, characterized in that: The base (1) is further provided with a U-shaped detection hole (10), and the rear end of the base (1) is provided with two U-shaped opening-shaped mounting grooves (11), the lower ends of the mounting grooves (11) are first connecting through holes (12), and the screw members are located in the mounting grooves (11) and pass through the first connecting through holes (12).

8. The high-precision laser deviation correction sensor according to claim 1, characterized in that: The base (1) is hollow inside and a circuit board is installed in the inner cavity, and the center of the outer wall is threadedly connected to the electric plug (4), and the circuit board is electrically connected to the electric plug (4), the transmitter body (22) and the laser receiving plate (33).

9. The high-precision laser deviation correction sensor according to claim 8, characterized in that: The circuit board also has a reverse circuit protection system.

10. The high-precision laser deviation correction sensor according to claim 1, characterized in that: The two laser emitters (2) are symmetrically arranged at the left end of the first housing (20), and the two laser emitters (2) are symmetrically arranged at the right end of the first housing (20).

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