Universal laser printing tool for guide rail type instruments

Abstract

The invention discloses a guide rail type instrument universal laser printing tool which comprises a linear module unit. The linear module unit is provided with a stand column part perpendicular to a machining platform, and the stand column part is provided with a lifting sliding block conducting lifting control along a stand column. The transverse rotating unit is arranged on the lifting sliding block and is driven by the lifting sliding block to adjust the height position; and the instrument fixing unit takes the driving end plate as a mounting base, is arranged in the direction of the main shaft in an extending manner and is provided with an axial clamping part and a radial clamping part, and the axial clamping part and the radial clamping part act at the same time to perform multi-surface clamping positioning on the periphery of the guide rail instrument. According to the universal laser printing tool for the guide rail type instruments, through adjustable installation of the linear modules, self-adaptive adjustment of the distance between the DIN guide rail seats and a multi-direction clamping structure, rapid clamping of the guide rail type instruments of different models is achieved, the compatibility is improved by 60% or above, and the universal laser printing tool has the advantages of being high in universality and rapid in adaptation.

Description

Technical Field

[0001] The invention relates to the technical field of guide rail instrument production, and in particular to a universal laser printing tool for guide rail instruments. Background Art

[0002] With the improvement of industrial automation, laser surface engraving technology is widely used in the production of rail-type instruments (such as rail meters and rail-type sensors) due to its advantages of non-contact, high precision and permanent marking. Traditional laser engraving equipment usually needs to be used with special tooling to complete the positioning and posture adjustment of the workpiece. However, the existing technology still has significant defects in multi-degree-of-freedom adjustment, adaptive clamping and dynamic stability, which directly affects the marking quality and production efficiency.

[0003] Existing clamping devices mostly use general-purpose pneumatic clamps or mechanical clamps, which can meet the basic fixing requirements, but lack targeted design for the L-shaped guide grooves, arc-shaped support surfaces and other special-shaped structures unique to rail-type instruments. Specifically, the clamping contact surface has a low matching degree with the instrument contour, and local force concentration can easily cause instrument deformation or surface scratches.

[0004] Traditional flipping mechanisms are mostly driven by worm gears or racks, with poor rotation positioning accuracy and the following defects: the angle repeatability accuracy is generally above ±1.5°. When the instrument needs to be engraved on multiple sides, the cumulative error can cause the character spacing to shift by 0.8-1.2mm. This in turn causes the engraving position on the instrument surface to have poor alignment, deformation of the characters, and other defects when the laser is engraving on the surface.

[0005] In view of the above, it is necessary to propose a universal laser printing tooling for rail-type instruments to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide a universal laser printing tool for rail-type instruments.

[0007] To achieve the above purpose, the technical solution of the present invention is as follows: a universal laser printing tool for rail-type instruments,

[0008] It includes a linear module unit: it is movably arranged on the processing platform, and has a column part arranged perpendicular to the processing platform, and a lifting slider is provided on the column part for lifting and lowering control along the column;

[0009] Horizontal rotating unit: This unit is arranged on the lifting slider and is driven by the lifting slider to adjust the height position. It has a main shaft arranged to rotate in the horizontal direction, a driving motor driving the main shaft to rotate, an angle detection mechanism for calibrating the rotation angle of the main shaft, and a driving end plate arranged at the protruding end of the main shaft;

[0010] Instrument fixing unit: It uses the driving end plate as the installation base and is extended along the main axis direction. It has an axial clamping part and a radial clamping part. The axial clamping part and the radial clamping part act simultaneously to perform multi-faceted clamping and positioning on the outer periphery of the guide rail instrument.

[0011] Furthermore, the angle detection mechanism is an asymmetric spiral grating coupling mechanism, a spiral grating groove is arranged on the main shaft, a laser emission array is arranged around the main shaft, the laser emission array has at least one group of laser emission modules, and the laser beam is projected onto the main shaft to measure the offset of the spiral grating groove.

[0012] Furthermore, two spiral grating grooves are wound on the main shaft in opposite directions; the two spiral grating grooves intersect each other to form an absolute value positioning reference point composed of the intersection of double spiral lines, and the intersection period of the double spiral lines is 180°; the laser emission array is provided with three groups of laser emission modules, and the three groups of laser emission modules are evenly distributed around the main shaft. The spiral grating grooves are arranged at an angle of 45°, and the groove depth of the spiral grating grooves is 0.5±0.02mm; the laser wavelength emitted by the laser emission module is 650nm / precision ±0.5μm.

[0013] Furthermore, the angle detection mechanism includes a shading ring arranged on the main shaft, the shading ring is provided with a notch, the shading ring rotates with the rotation of the main shaft, and also includes a first photoelectric switch arranged in a fixed position, the first photoelectric switch cooperates with the shading ring; the driving motor is a servo motor.

[0014] Furthermore, the instrument fixing unit includes an axial substrate, which is vertically fixed on the driving end plate, and the radial clamping portion is arranged on the axial substrate; the axial clamping portion includes a pen-shaped cylinder, which presses the guide rail instrument tightly on the driving end plate to form axial clamping.

[0015] Furthermore, the radial clamping portion includes a first track edge strip and a second track edge strip, and the first track edge strip and the second track edge strip are controlled to move relatively parallel to each other to change the spacing, so that the first track edge strip and the second track edge strip form a universally adaptable DIN rail seat.

[0016] Furthermore, the first track edge strip and the second track edge strip are provided with a contoured adaptive clamp on the clamping side, and a deformable filling cavity is provided on the clamping side of the track edge strip. The filling cavity is filled with a filling medium, and the filling cavity is composed of a replaceable silicone deformation layer.

[0017] Furthermore, the filling medium is compressed air.

[0018] Furthermore, an energized solidification structure for controlling the phase change of the phase change material is provided in the filling cavity, and the energized solidification structure includes a cathode conductive layer-titanium cathode mesh, an anode conductive layer-graphene coating, and a power supply; the titanium cathode mesh and the graphene coating are respectively arranged on the inner walls on both sides of the filling cavity, and the liquid phase change material is injected between the two during profiling, and energized to solidify.

[0019] The advantages and beneficial effects of the present invention are: 1. A universal laser printing tooling for guide rail instruments of the present invention realizes rapid clamping of guide rail instruments of different types through adjustable installation of linear modules, adaptive adjustment of DIN guide rail seat spacing and multi-directional clamping structure, and improves compatibility by more than 60%, with the advantages of high versatility and rapid adaptation.

[0020] 2. The double-helix grating coupling detection technology is adopted, and the three-beam error compensation algorithm is used to achieve a rotation positioning accuracy of ±0.005°, ensuring the consistency of the laser printing position; the positioning accuracy is high.

[0021] 3. The contoured chuck based on liquid metal phase change material can increase the hardness by 600 times within 3 seconds through electric field regulation, provide 800N customized clamping force, adapt to special-shaped workpieces without mechanical damage.

[0022] 4. The linear module, rotary unit, and clamping mechanism adopt standardized interface design, which supports the combination of different functional modules on demand, and the production line modification time is shortened to 15 minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The invention is a kind of universal laser printing tooling for guide rail type instrument. Figure 1 ;

[0024] Figure 2 This is the second isometric drawing of a universal laser printing tooling for a guide rail instrument of the present invention;

[0025] Figure 3 It is an exploded view of the horizontally placed rotating unit and the instrument fixing unit in the present invention;

[0026] Figure 4 It is a schematic structural diagram of the asymmetric spiral grating coupling mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the measurement of spiral grating grooves by the laser emission module in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the contour-adaptive chuck in the present invention;

[0029] In the figure: 1, linear module unit; 2, horizontal rotation unit; 3, instrument fixing unit; 4, processing platform; 5, column part; 6, lifting slide block; 7, main shaft; 8, driving motor; 9, angle detection mechanism; 10, driving end plate; 11, axial clamping part; 12, radial clamping part; 13, asymmetric spiral grating coupling mechanism; 14, spiral grating groove; 15, laser emission module; 16, reference point; 17, shading circle; 18, notch; 19, first photoelectric switch; 20, axial substrate; 21, pen-shaped cylinder; 22. First track edge strip; 23. Second track edge strip; 24. DIN rail seat; 25. Contour adaptive chuck; 26. Filling cavity; 27. Cathode conductive layer; 28. Anode conductive layer; 29. ​​Power supply; 30. Mounting hole; 31. L-shaped base plate; 32. Linear motor; 33. Baffle; 34. Connecting substrate; 35. Bearing seat; 36. Outer cover shell; 37. Support base; 38. Radial track; 39. Radial slider; 40. Double-rod cylinder; 41. Synchronous push plate; 42. Scanning track of laser module. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0031] A universal laser printing tool for rail-type instruments, such as Figure 1-6 As shown, it specifically includes the following structures:

[0032] It includes a linear module unit 1: it is movably arranged on a processing platform 4, and a plurality of array-distributed mounting holes 30 are provided on the processing platform 4. A column portion 5 is provided perpendicular to the processing platform 4, and a lifting slider 6 for lifting and lowering control along the column is provided on the column portion 5. The bottom of the column portion 5 is fixed to the processing platform 4 through the mounting hole 30. It can be understood that the linear module unit 1 can change the installation position on the processing platform 4, so that the horizontal rotating unit 2 and the instrument fixing unit 3 arranged thereon change their positions relative to the laser printer, so that the processing part of the product can be adaptively adjusted, and the universal clamping and use of different types of guide rail instruments can also be improved.

[0033] The specific structure of the column part 5 includes an L-shaped base plate 31 and a linear motor 32. The column part 5 is vertically positioned and installed on the processing platform 4 through the L-shaped base plate 31. The linear motor 32 is fixed to the side of the L-shaped base plate 31 and is vertically arranged. The lifting slider 6 is an up and down moving part controlled by the linear motor 32. Furthermore, a plurality of travel switches are arranged in the track groove on the side of the linear motor 32 for detecting the height position of the lifting slider 6. As shown in the figure, three travel switches are exemplarily fixed in the track groove from top to bottom, and a baffle 33 is arranged on the side of the lifting slider 6. The baffle 33 will pass through each travel switch when moving up and down, so that the height position of the lifting slider 6 is detected by the travel switch, which is convenient for height control.

[0034] Horizontally placed rotating unit 2: This unit is arranged on the lifting slider 6 and is driven by the lifting slider 6 to adjust the height position. It has a main shaft 7 that is arranged to rotate in the horizontal direction, a driving motor 8 that drives the main shaft 7 to rotate, an angle detection mechanism 9 that calibrates the rotation angle of the main shaft 7, and a driving end plate 10 that is arranged at the protruding end of the main shaft 7; specifically, the horizontally placed rotating unit 2 also includes a connecting base plate 34, on which at least two bearing seats 35 are fixed, and the main shaft 7 is rotatably arranged on the bearing seats 35, so that the main shaft 7 rotates in a horizontal position, and an outer cover shell 36 is wrapped around the outside of the connecting base plate 34 to separate it from the outside, and a driving motor 8 is arranged at one end of the outer cover shell 36, and the driving motor 8 drives the main shaft 7 to rotate, and the other end of the main shaft 7 passes through the outer cover shell 36 and is provided with a driving end plate 10. The angle detection mechanism 9 that calibrates the rotation angle of the main shaft 7 is arranged inside the outer cover shell 36.

[0035] The instrument fixing unit 3 is installed on the driving end plate 10 and is extended along the main shaft 7. It has an axial clamping portion 11 and a radial clamping portion 12. The axial clamping portion 11 and the radial clamping portion 12 act simultaneously to perform multi-faceted clamping and positioning on the periphery of the guide rail instrument.

[0036] The radial clamping portion 12 includes a first track edge strip 22 and a second track edge strip 23. The first track edge strip 22 and the second track edge strip 23 are controlled to move relative to each other in parallel to change the spacing, so that the first track edge strip 22 and the second track edge strip 23 form a universally adaptable DIN rail seat 24. Specifically, the instrument fixing unit 3 includes an axial base plate 20, and the axial base plate 20 is vertically fixed on the driving end plate 10. The radial clamping portion 12 is arranged on the axial base plate 20. In this tooling, the axis direction of the main shaft 7 is defined as the axial direction, and the direction perpendicular to the axial direction is the radial direction. In this embodiment, the first track edge strip 22 is set to be fixed on the axial base plate 20. Specifically, a plurality of support bases 37 are provided on the axial base plate 20 to support the height of the first track edge strip 22. The bottom of the support base 37 is fixed on the axial base plate 20, and the first track edge strip 22 is fixed on the support base 37, so that the height of the first track edge strip 22 The length direction is arranged along the axial direction; two radial rails 38 are arranged on the gap between the support base 37 and the axial base plate 20, and radial sliders 39 are slidably arranged on the radial rails 38, and the second rail edge strip 23 is positioned on the radial sliders 39, so that the second rail edge strip 23 can slide radially to change the spacing with the first rail edge strip 22; and a double-rod cylinder 40 is arranged on the axial base plate 20 to push the second rail edge strip 23 to move, specifically, the ends of the two radial sliders 39 are simultaneously connected to the synchronous push plate 41, and the free end of the double-rod cylinder 40 is connected to the synchronous push plate 41, so as to control the movement of the second rail edge strip 23. In actual use, one side of the card slot at the bottom of the guide rail instrument is clamped on the first rail edge strip 22 at a fixed position, and then the synchronous push plate 41 is pushed by the double-rod cylinder 40, and then the radial sliders 39 on both sides move simultaneously, so that the second rail edge strip 23 moves away from the first rail edge strip 22, thereby forming an expansion card slot at the bottom of the guide rail instrument to form radial positioning.

[0037] The axial clamping part 11 includes a pen-shaped cylinder 21, which presses and fixes the guide rail instrument on the driving end plate 10 to form an axial clamping. The pen-shaped cylinder 21 is fixed at the end of the axial base plate 20 through the end stand, and the push block of the pen-shaped cylinder 21 faces the driving end plate 10. When the pen-shaped cylinder 21 is extended, the track instrument is pressed against the driving end plate 10, thereby forming an axial clamping positioning; and the double cylinders are actuated to move the second track edge strip 23, so that the DIN track seat forms an adaptive change, and then fix the card seat at the bottom of the guide rail instrument to form a radial fixation.

[0038] In actual use, after the guide rail instrument is fixed by the instrument fixing unit 3, the starting point is automatically identified by the angle detection mechanism 9, so that one side of the instrument faces the laser printer, and after one side is printed; the instrument is flipped by the horizontal rotation unit 2 to make the other sides face the laser printer in turn, thereby completing the laser printing operation on each side of the instrument; it can be understood that in the process of flipping the angle, the flipping accuracy of the instrument is controlled and adjusted by the angle detection mechanism 9; thereby avoiding the defects of inconsistent position or deformation in the laser printing area of ​​the product due to the control error of the flipping angle.

[0039] Further, as an embodiment of the angle detection mechanism 9, the angle detection mechanism 9 is an asymmetric spiral grating coupling mechanism 13, such as Figure 4 , 5 As shown, a spiral grating groove 14 is arranged on the main shaft 7 , and a laser emitting array is arranged around the main shaft 7 . The laser emitting array is provided with at least one group of laser emitting modules 15 . The laser beam is projected onto the main shaft 7 to measure the offset of the spiral grating groove 14 .

[0040] Specifically, two spiral grating grooves 14 are wound on the main shaft 7 in opposite directions; the two spiral grating grooves 14 cross each other to form an absolute value positioning reference point 16 composed of the intersection points of double helical lines, and the crossing period of the double helix lines is 180°; the laser emission array is provided with three groups of laser emission modules 15, and the three groups of laser emission modules 15 are evenly distributed around the main shaft 7. The spiral grating grooves 14 are arranged obliquely at 45°, and the groove depth of the spiral grating grooves 14 is 0.5±0.02mm. The groove width of the spiral grating grooves 14 is defined as the groove spacing, and the groove spacing can be set to 0.5±0.02mm; the laser wavelength emitted by the laser emission module 15 is 650nm / precision ±0.5μm. In actual use, when the main shaft 7 rotates, that is, the two spiral grating grooves 14 rotate with the main shaft 7, when observed at a fixed position, the following can be formed. Figure 5 The spiral grating groove 14 shown in the figure moves in a translational direction, and the double spiral intersections can be similarly understood as integer scales of a scale: in this embodiment, each half turn must pass through an intersection, which corresponds to a half turn of the main shaft 7. The system records the number of intersections passed, and the number of half turns is known; and the groove spacing of the spiral grating groove 14 can be understood as the rotation angle of the main shaft 7 corresponding to its span. When the laser beam scans, such as Figure 5As shown, by detecting the corresponding n groove spacings between the front and rear positions, the rotation angle can be obtained; the laser beam irradiating the edge of the spiral grating groove 14 will produce a light-dark dividing line, and the photoelectric sensor integrated on the laser emission module 15 captures the sensitive dividing line signal to form a light spot movement distance, which corresponds to the distance of the spiral grating groove 14 moving the groove spacing. For example, moving 3 groove spacings corresponds to the main axis 7 rotating 0.3°; the accumulated error is corrected by the combination of three laser emission modules 15 and the intersection position.

[0041] In the present embodiment, three laser emission modules 15 are provided, and errors are reduced by comprehensive judgment of three groups of laser beams. The sources of errors in actual use may include: axial center offset (solved by calculating and compensating for the difference in triangle laser spacing), surface stains (at least two light beams can identify the effective area to improve detection accuracy), and vibration jitter (taking the median of the three signals for filtering); in this way, a relatively high accuracy can be maintained.

[0042] The specific method is: count the intersection points to know how many half turns the main shaft 7 has rotated, which can be regarded as the absolute number of rotations; by measuring the slot spacing, the specific angle of rotation within the current half turn can be known, with an accuracy of 0.1°; the actual rotation angle is combined according to the two results, namely: actual angle = number of half turns × 180° + angle within the current half turn.

[0043] Embodiment of the main shaft 7 rotating 90°:

[0044] Let the spindle 7 stop precisely at the 90° position (within the error of ±0.008°);

[0045] 1. Initialize to zero:

[0046] The spindle 7 is reset to the nearest intersection point (e.g. 0° position);

[0047] System records: Current absolute position = 0 circles + 0°.

[0048] 2. Start rotation:

[0049] The motor drives the main shaft 7 to rotate in a 90° direction.

[0050] 3. Real-time detection:

[0051] The laser beam scans the spiral groove, emitting a pulse every time it passes through a groove pitch (1 pulse = 0.1°);

[0052] Accumulated number of pulses: 90°÷0.1°=900 pulses.

[0053] 4. Arrival judgment:

[0054] When the pulse count reaches 900, brake immediately;

[0055] Also check if it is close to the intersection (to prevent false triggering);

[0056] Actual stop position: 90.002° (measured data).

[0057] Error compensation:

[0058] If the inertia exceeds 900 pulses, the system will automatically reverse fine-tune:

[0059] Overshoot = number of pulses detected - 900

[0060] Number of reverse compensation pulses = overshoot × 1.2 (empirical coefficient)

[0061] The final accuracy can reach 90°±0.005°

[0062] Example of 270° rotation: (positioning across half a circle)

[0063] Key point: 270° = 1 full circle (360°) - 90°.

[0064] Calculation logic:

[0065] 1. System memory: Currently rotated 1 half circle (1×180°=180°);

[0066] 2. Remaining angle: 270°-180°=90°;

[0067] 3. Execute the same 90° positioning process as the previous embodiment.

[0068] Error proofing mechanism:

[0069] Each time a cross point is passed, the accumulated error is automatically corrected:

[0070] Theoretical pulse number = target angle ÷ 0.1°;

[0071] Actual pulse number = theoretical pulse number × (1-temperature compensation coefficient);

[0072] Example of multiple rotations:

[0073] Target (5 circles + 45°): Stop precisely at the position of 5×360°+45°=1845°.

[0074] Operation process:

[0075] 1. Circle counting: trigger an intersection every 180° → 5 circles = 10 intersections;

[0076] 2. Small angle positioning: 45° corresponds to 450 pulses (45÷0.1);

[0077] 3. Final coordinates:

[0078] 4. Total angle = number of intersections × 180° + number of pulses × 0.1°

[0079] =10×180°+450×0.1°

[0080] =1800°+45°=1845°

[0081] Anti-interference test: artificially block two laser heads → the third laser head can still maintain ±0.015° accuracy.

[0082] Further, as another embodiment of the angle detection mechanism 9, Figure 3 As shown, it includes a light shielding ring 17 arranged on the main shaft 7, and a notch 18 is arranged on the light shielding ring 17. The light shielding ring 17 rotates with the rotation of the main shaft 7, and also includes a first photoelectric switch 19 arranged at a fixed position, and the first photoelectric switch 19 cooperates with the light shielding ring 17; the driving motor 8 is a servo motor. As shown in the figure, the main shaft 7 is controlled by the servo motor to perform precise rotation of various angles, and the light shielding ring 17 with the notch 18 cooperates with the first photoelectric switch 19, so that the tooling can identify the starting point. After the positioning of the guide rail instrument is completed, the main shaft 7 is rotated to the starting position through the first photoelectric switch 19 and the light shielding ring 17, and then the angles are rotated in sequence according to the setting process to perform laser printing.

[0083] Furthermore, as an improvement of the radial clamping portion 12 in the instrument fixing unit 3, a contoured adaptive clamp 25 is provided on the clamping side of the first track edge strip 22 and the second track edge strip 23, and a deformable filling cavity 26 is provided on the clamping side of the track edge strip. The filling cavity 26 is filled with a filling medium, and the filling cavity 26 is composed of a replaceable silicone deformation layer.

[0084] As an embodiment, the filling medium is a phase change material, the composition of the phase change material includes a liquid alloy composed of gallium, indium, and tin, and the mass ratio of the material composition is 62% gallium, 22% indium, and 16% tin. The melting point of the phase change material is 12°C. The melting point of pure Ga is reduced to 29.76°C by In and Sn doping, and the melting point is reduced to: 12°C; the solidification point is 25°C; the apparent solidification is caused by the formation of a surface oxide layer. The electrical conductivity of the phase change material is: 3.4×106S / m (liquid); 1.8×106S / m (semi-solid).

[0085] The oxide layer regulation mechanism is:

[0086] Natural oxide layer: A 2-3nm thick Ga2O3 film is formed when exposed to air, resulting in decreased fluidity;

[0087] Electric field enhanced oxidation: When a +5V bias is applied, the oxide layer growth rate reaches 10nm / min (normally 0.1nm / min).

[0088] Furthermore, an energized solidification structure for controlling the phase change of the phase change material is provided in the filling cavity, and the energized solidification structure includes a cathode conductive layer-titanium cathode mesh, an anode conductive layer-graphene coating, and a power supply; the titanium cathode mesh and the graphene coating are respectively arranged on the inner walls on both sides of the filling cavity, and the liquid phase change material is injected between the two during profiling, and energized to solidify. Based on the above principle, the annual control range of the box-type transformer material can be achieved as shown in the following table:

[0089] state Viscosity (Pa·s) Yield stress(Pa) Original liquid 0.002 0 Power-on processing 1.2-3.5 50-200 Power failure recovery 0.005 0

[0090] Reset method: Apply -3V voltage pulse (0.5s) to dissolve the oxide layer.

[0091] After testing, the performance parameters of this phase change material are as follows:

[0092] Numeric Curing response time ≤15s (reach 90% of target stiffness) Maximum clamping force <![CDATA[800N (contact area 50cm 2 )]]> Number of times of reuse >5000 times (stiffness decay <5%) Energy consumption 150J / time in the shaping stage

[0093] The specific control process is as follows: when the bottom shape of some guide rail instruments is peculiar and the positioning firmness is poor, the present contour-adaptive chuck can be used. When positioning the radial clamping part, the two track side strips move away from each other, and then the liquid phase change material is injected into the filling cavity, the filling cavity expands to form a contour, and then power is turned on to make the phase change material enhance the oxide layer and thicken, and then solidify to form a fixation, and then maintain the voltage to maintain its solidified form; when released, the control power supply passes a reverse voltage pulse to reduce the oxide layer and resume flow, thereby forming a contour-adaptive fixation.

[0094] As another embodiment, the filling medium is compressed air; by filling the filling cavity with compressed air of a certain pressure, the filling cavity is expanded to form a contoured fixation.

[0095] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A universal laser printing tool for rail-type instruments, characterized in that: The linear module unit (1) is movably arranged on a processing platform (4), and has a column portion (5) arranged perpendicular to the processing platform (4). The column portion (5) is provided with a lifting slider (6) for lifting and lowering control along the column. A horizontally placed rotating unit (2): the unit is arranged on the lifting slider (6) and is driven by the lifting slider (6) to adjust the height position. The unit comprises a main shaft (7) arranged to rotate in the horizontal direction, a driving motor (8) driving the main shaft (7) to rotate, an angle detection mechanism (9) for calibrating the rotation angle of the main shaft (7), and a driving end plate (10) arranged at the protruding end of the main shaft (7); The instrument fixing unit (3) is installed on the driving end plate (10) and is arranged to extend along the main shaft (7). The instrument fixing unit (3) has an axial clamping portion (11) and a radial clamping portion (12). The axial clamping portion (11) and the radial clamping portion (12) act simultaneously to clamp and position the outer periphery of the guide rail instrument on multiple sides.

2. The universal laser printing tool for rail-type instruments according to claim 1, characterized in that: The angle detection mechanism (9) is an asymmetric spiral grating coupling mechanism (13), a spiral grating groove (14) is arranged on the main shaft (7), a laser emission array is arranged around the main shaft (7), the laser emission array is provided with at least one group of laser emission modules (15), and a laser beam is projected onto the main shaft (7) to measure the offset of the spiral grating groove (14).

3. The universal laser printing tool for rail-type instruments according to claim 2, characterized in that: Two spiral grating grooves (14) are wound on a main shaft (7) in opposite directions; the two spiral grating grooves (14) intersect each other to form an absolute value positioning reference point (16) composed of a double spiral line intersection point, and the intersection period of the double spiral line is 180 degrees; the laser emission array is provided with three groups of laser emission modules (15), and the three groups of laser emission modules (15) are evenly distributed around the main shaft (7).

4. The universal laser printing tool for rail-type instruments according to claim 1, characterized in that: The angle detection mechanism (9) comprises a light shielding ring (17) arranged on the main shaft (7), the light shielding ring (17) is provided with a notch (18), the light shielding ring (17) rotates with the rotation of the main shaft (7), and also comprises a first photoelectric switch (19) arranged at a fixed position, the first photoelectric switch (19) cooperates with the light shielding ring (17); the driving motor (8) is a servo motor.

5. The universal laser printing tool for rail-type instruments according to claim 1, characterized in that: The instrument fixing unit (3) comprises an axial base plate (20), the axial base plate (20) is vertically fixed on the driving end plate (10), and the radial clamping portion (12) is arranged on the axial base plate (20); the axial clamping portion (11) comprises a pen-shaped cylinder (21), and the pen-shaped cylinder (21) presses and fixes the guide rail type instrument on the driving end plate (10) to form axial clamping.

6. The universal laser printing tool for rail-type instruments according to claim 5, characterized in that: The radial clamping portion (12) comprises a first track edge strip (22) and a second track edge strip (23), wherein the first track edge strip (22) and the second track edge strip (23) are controlled to move in parallel relative to each other to change the spacing, so that the first track edge strip (22) and the second track edge strip (23) form a universally adaptable DIN rail seat (24).

7. The universal laser printing tool for rail-type instruments according to claim 6, characterized in that: The first track edge strip (22) and the second track edge strip (23) are provided with a contour-adaptive clamp (25) on the clamping side, and the contour-adaptive clamp (25) includes a deformable filling cavity (26) provided on the clamping side of the track edge strip, and the filling cavity (26) is filled with a filling medium, and the filling cavity (26) is composed of a replaceable silicone deformation layer.

8. The universal laser printing tool for rail-type instruments according to claim 7, characterized in that: The filling medium is compressed air.

9. The universal laser printing tool for rail-type instruments according to claim 7, characterized in that: The filling medium is a phase change material, and the composition of the phase change material includes a liquid alloy composed of gallium, indium, and tin. The material composition ratio is 62% gallium, 22% indium, and 16% tin. The melting point of the phase change material is 12°C.

10. The universal laser printing tool for rail-type instruments according to claim 9, characterized in that: The filling cavity (26) is provided with an energized solidification structure for controlling the phase change of the phase change material, and the energized solidification structure comprises a cathode conductive layer (27)-titanium cathode mesh, an anode conductive layer (28)-graphene coating, and a power source (29); the titanium cathode mesh and the graphene coating are respectively arranged on the inner walls of both sides of the filling cavity (26), and during profiling, liquid phase change material is injected between the two and energized to solidify.

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