Calibration device for solder paste printing machine

Abstract

The utility model discloses a calibration device for a solder paste printer, which comprises an X-axis movement mechanism and a Y-axis movement mechanism, the Y-axis movement mechanism slides along the arrangement direction of the X-axis movement mechanism, the Y-axis movement mechanism is slidably connected with a mounting seat along the arrangement direction of the Y-axis movement mechanism, the mounting seat is provided with an industrial camera, and the industrial camera is connected with the X-axis movement mechanism. The X-axis movement mechanism and the Y-axis movement mechanism are horizontally arranged, the mounting seat comprises a first mounting seat, an X-axis fine adjustment mechanism is mounted on the first mounting seat, the X-axis movement mechanism comprises a pair of first mother rails, and a first slide way is formed by the pair of first mother rails. Compared with the prior art, the calibration device for the solder paste printing machine has the advantages that the X-axis movement mechanism and the Y-axis movement mechanism 7 are arranged, so that the position of the industrial camera can be conveniently adjusted, the requirement for rapid and high-precision calibration can be met, the situation that the calibration result fluctuates too much can be reduced as much as possible, and the stability of the calibration result can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated industrial equipment, and in particular relates to a calibration device for a solder paste printer. Background Art

[0002] In visual positioning and guidance equipment, the main device for completing precise target positioning is the camera. In order to determine the relationship between the three-dimensional geometric position of a point on the surface of a spatial object and its corresponding point in the image, it is necessary to establish a conversion model between the image coordinate system and the spatial coordinate system, and accurately calibrate its parameters.

[0003] In the field of intelligent high-end equipment, calibration is a critical step. The accuracy of the calibration results and the stability of the algorithm directly impact the accuracy of the camera's output. Existing calibration processes for solder paste printer vision systems typically use manual focusing, where the image clarity is determined by visual observation. The camera then automatically captures the image. The captured images are then manually calibrated. While this method can achieve basic visual system calibration, it has numerous shortcomings in practical applications. For example, manual focusing relies on the operator's visual judgment, which is time-consuming and inefficient. Especially in automated, high-precision production environments like solder paste printing, visual observation cannot meet the speed and precision requirements. Furthermore, the subjectivity and instability of manual calibration lead to significant fluctuations in the calibration results, making calibration accuracy difficult to control and the stability of the calibration results poor.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the present utility model is to provide a calibration device for a solder paste printer, which can solve the technical problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A calibration device for a solder paste printer includes an X-axis motion mechanism and a Y-axis motion mechanism. The Y-axis motion mechanism slides along the direction in which the X-axis motion mechanism is set. A mounting seat is connected to the Y-axis motion mechanism in a sliding manner along the direction in which the Y-axis motion mechanism is set. An industrial camera is installed on the mounting seat. The X-axis motion mechanism and the Y-axis motion mechanism are both horizontally arranged. The mounting seat includes a first mounting seat, and an X-axis fine-tuning mechanism is installed on the first mounting seat.

[0008] In one or more embodiments of the present invention, the X-axis motion mechanism includes a pair of first mother rails, the pair of first mother rails form a first slideway, and the Y-axis motion mechanism is slidably connected in the first slideway.

[0009] In one or more embodiments of the present invention, the Y-axis motion mechanism includes a second mother rail, and both ends of the second mother rail are fixedly connected to male rails that match the first mother rail.

[0010] In one or more embodiments of the present invention, a first triangular rail groove matching the male rail is formed on the first mother rail, and a limiting plate matching the first triangular rail groove is fixedly connected to the male rail.

[0011] In one or more embodiments of the present invention, a first waist hole is opened on the side wall of the first mother rail, and a first bolt matching the first waist hole is installed on the first mother rail. The first bolt passes through the first waist hole and is threadedly connected to the male rail.

[0012] In one or more embodiments of the present invention, the X-axis fine-tuning mechanism includes a second mounting seat, to which a plurality of first sliding rods are fixedly connected and a first threaded rod is rotatably connected, a first through hole matching the first sliding rod is provided on the first mounting seat, a first threaded hole matching the first threaded rod is provided on the first mounting seat, and the first threaded hole is threadedly connected to the first threaded rod.

[0013] In one or more embodiments of the present invention, the second mounting seat is a Z-shaped structure, and the second mounting seat has a micro-motion panel, and the first mounting seat is provided with a fine-tuning positioning surface matching the micro-motion panel.

[0014] In one or more embodiments of the present invention, a Z-axis fine-tuning mechanism is installed on the second mounting seat, and the Z-axis fine-tuning mechanism includes a mounting plate, which is installed on the upper end surface of the second mounting seat, and a third threaded rod is rotatably connected to the mounting plate. A second threaded hole matching the third threaded rod is provided on the second mounting seat, and an industrial camera is detachably mounted on the upper end of the mounting plate.

[0015] In one or more embodiments of the present invention, a third threaded hole is provided on the industrial camera, a fourth through hole matching the third threaded hole is provided on the second mounting base, a second threaded rod matching the fourth through hole is slidably connected to the second mounting base, the second threaded rod passes through the fourth through hole, the mounting plate and the third threaded hole in sequence, and the mounting plate is threadedly connected to the second threaded rod.

[0016] In one or more embodiments of the present invention, the Y-axis motion mechanism includes a second mother rail, a second triangular rail groove is provided on the second mother rail, a male rail is slidably connected in the second triangular rail groove, a second waist hole is provided on the bottom wall of the second triangular rail groove, a second bolt matching the second waist hole is threadedly connected to the second mother rail, and the second bolt passes through the second waist hole and is threadedly connected to the male rail.

[0017] Compared with the prior art, the calibration device for a solder paste printer of the present invention is advantageous in adjusting the position of the industrial camera by setting an X-axis motion mechanism and a Y-axis motion mechanism 7, thereby meeting the requirements of fast and high-precision calibration, minimizing the excessive fluctuation of the calibration results, and improving the stability of the calibration results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural schematic diagram of a calibration device for a solder paste printer in one embodiment of the present utility model;

[0020] Figure 2 This is a first cross-sectional view of a calibration device for a solder paste printer in one embodiment of the present invention;

[0021] Figure 3 This is a second cross-sectional view of a calibration device for a solder paste printer in one embodiment of the present invention;

[0022] Figure 4 This is a structural diagram of the first mounting base in one embodiment of the present utility model;

[0023] Figure 5 This is a partial exploded view of a mounting base in one embodiment of the present utility model;

[0024] Figure 6 Schematic diagram of the structure of the public rail in one embodiment of the present invention.

[0025] Description of main reference numerals:

[0026] 1. Support mechanism; 2. Calibration plate; 3. X-axis motion mechanism; 4. First mother rail; 401. First triangular rail groove; 402. First waist hole; 5. Male rail; 501. Limit plate; 6. First bolt; 7. Y-axis motion mechanism; 8. Second mother rail; 801. Second triangular rail groove; 802. Second waist hole; 9. First mounting seat; 901. First through hole; 902. First threaded hole; 903. Fine-tuning positioning surface; 10. Second bolt; 11. X-axis fine-tuning mechanism; 12. Second mounting seat; 1201. Fine-motion panel; 1202. Fourth through hole; 1203. Second threaded hole; 13. First slide rod; 14. First threaded rod; 15. Z-axis fine-tuning mechanism; 16. Mounting plate; 17. Second threaded rod; 18. Third threaded rod; 19. Industrial camera; 1901. Third threaded hole. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown, a calibration device for a solder paste printer in one embodiment of the present invention includes an X-axis motion mechanism 3 and a Y-axis motion mechanism 7 set along the setting direction of the X-axis motion mechanism 3, and an industrial camera 19 is installed on the Y-axis motion mechanism 7. The X-axis motion mechanism 3 can move the industrial camera 19 along the X direction, and the Y-axis motion mechanism 7 can move the industrial camera 19 along the Y direction. In conjunction with the algorithm, automatic focusing of the steel mesh and the PCB board can be achieved, and the steel mesh and the PCB board can be visually aligned. The industrial camera 19 is installed on the X-axis motion mechanism 3 and the Y-axis motion mechanism 7. During installation, the industrial camera 19 can be directly installed on the Y-axis motion mechanism 7. There is no need to manually punch a meter to confirm the horizontality and verticality of the industrial camera 19. When replacing the camera, there is no need to re-punch the meter and install it, which facilitates the disassembly of the industrial camera 19.

[0029] Specifically, such as Figures 1 to 3As shown, the X-axis motion mechanism 3 includes a pair of first mother rails 4, which form a first slideway, and the Y-axis motion mechanism 7 is slidably connected to the first slideway. The first mother rail 4 is provided with a first triangular rail groove 401, and the Y-axis motion mechanism 7 includes a second mother rail 8. The two ends of the second mother rail 8 are fixedly connected to male rails 5 that match the first triangular rail groove 401. The male rail 5 is fixedly connected to a limit plate 501 that matches the first triangular rail groove 401. The male rail 5 and the limit plate 501 cooperate to enable the second mother rail 8 to move along the direction set by the first triangular rail groove 401, and the second mother rail 8 is not easily offset or skewed during movement.

[0030] like Figure 1 As shown, a first waist hole 402 is opened on the side wall of the first triangular rail groove 401, and a first bolt 6 matching the first waist hole 402 is installed on the first mother rail 4. The first bolt 6 passes through the first waist hole 402 and is threadedly connected to the male rail 5. By tightening the first bolt 6, the friction between the outer wall of the first mother rail 4 and the first bolt 6 is increased to achieve locking of the Y-axis motion mechanism 7.

[0031] like Figures 1 to 3 As shown, the interior of the second mother rail 8 is also slidably connected to the male rail 5, that is, the second mother rail 8 is provided with a second triangular rail groove 801 that matches the male rail 5, and the upper end of the male rail 5 is installed with a first mounting seat 9, and an X-axis fine-tuning mechanism 11 is installed on one side of the first mounting seat 9, and the industrial camera 19 is installed on the X-axis fine-tuning mechanism 11. The position of the industrial camera 19 in the Y direction can be fine-tuned by the X-axis fine-tuning mechanism 11, so that the calibration is more accurate and the calibration error is reduced. A second bolt 10 that matches the male rail 5 is installed on the second mother rail 8, and the second mother rail 8 is provided with a second waist hole 802 that matches the second bolt 10. The second bolt 10 passes through the second waist hole 802 and is threadedly connected to the male rail 5 to achieve the fixation of the male rail 5 on the second mother rail 8.

[0032] like Figures 1 to 5 As shown, a first mounting seat 9 is fixedly connected to the male rail 5 within the second female rail 8. A plurality of first through-holes 901 are defined in the first mounting seat 9, and a first threaded hole 902 is defined in the middle of each of the plurality of first through-holes 901. The X-axis fine-tuning mechanism 11 includes a second mounting seat 12, to which a plurality of first slide bars 13 matching the first through-holes 901 and a first threaded rod 14 threadedly connected to the first threaded holes 902 are fixedly connected. Through the coordination of the first slide bars 13, the first threaded rod 14, the first through-holes 901, and the first threaded holes 902, the position of the second mounting seat 12 can be changed by rotating the first threaded rod 14. By setting a finer pitch, the position of the industrial camera 19 in the Y direction can be fine-tuned.

[0033] Specifically, such as Figures 1 to 5As shown, the second mounting seat 12 is a Z-shaped structure, and the second mounting seat 12 has a micro-motion panel 1201. The first mounting seat 9 is provided with a fine-tuning positioning surface 903 that matches the micro-motion panel 1201. When the second mounting seat 12 moves on the first mounting seat 9, one end face of the fine-tuning positioning surface 903 is always in contact with one end face of the micro-motion panel 1201, and it is not easy for the micro-motion panel 1201 to separate from the fine-tuning positioning surface 903. To a large extent, it is ensured that the position of the second mounting seat 12 does not sag when the second mounting seat 12 moves away from or close to the first mounting seat 9, and the industrial camera 19 is ensured to be on the same plane as much as possible during the movement.

[0034] like Figures 1 to 5 As shown, the second mounting base 12 is provided with a Z-axis fine-tuning mechanism 15. This mechanism can adjust the Z-axis position of the industrial camera 19, thereby varying the height of the industrial camera 19 to accommodate workpieces of varying specifications. Specifically, the Z-axis fine-tuning mechanism 15 includes a mounting plate 16. When the mounting plate 16 contacts one end surface of the second mounting base 12, the upper end surface of the mounting plate 16 is parallel to the horizontal plane. The second mounting base 12 is provided with a plurality of fourth through holes 1202, each of which has a second threaded hole 1203 defined in the middle. A third threaded rod 18 is rotatably connected to the mounting plate 16, matching the second threaded hole 1203. A second threaded rod 17 is threadedly connected to the mounting plate 16, matching the fourth through hole 1202. One end of the second threaded rod 17 can be secured to the industrial camera 19, thereby locating and securing the mounting plate 16 and the industrial camera 19. That is, the second threaded rod 17 passes through the fourth through hole 1202 and is threadedly connected to the mounting plate 16, and is also threadedly connected to the industrial camera 19, thereby fixing the industrial camera 19 to the mounting plate 16. When the Z-axis needs to be adjusted, the third threaded rod 18 is simply rotated, and the third threaded rod 18 moves the mounting plate 16 up and down.

[0035] like Figure 5 As shown, the industrial camera 19 is provided with a plurality of third threaded holes 1901 matching the second threaded rod 17 , and the third threaded holes 1901 are threadedly connected to the second threaded rod 17 .

[0036] Preferably, a Y-axis fine-tuning structure can also be set on the calibration device. By setting the Y-axis fine-tuning structure, the Y-axis fine-tuning structure can realize fine-tuning of the industrial camera 19 on the Y-axis. Compared with the Y-axis motion mechanism 7, the distance of the industrial camera 19 can be adjusted more finely, which is conducive to achieving high-precision calibration of the calibration device.

[0037] During use, first, the calibration device is installed on the upper end of the support mechanism 1 and the lower end of the steel mesh, and the steel mesh is fixed above the support mechanism 1. A calibration plate 2 is placed on the support mechanism 1, and the industrial camera 19 is located on the X-axis motion mechanism 3 and the Y-axis motion mechanism 7. The movement of the X and Y axes is achieved through the cooperation of the X-axis motion mechanism 3 and the Y-axis motion mechanism 7, and the movement of the industrial camera 19 in the Z-axis direction is achieved through the Z-axis fine-tuning mechanism 15 on the Y-axis motion mechanism 7. At the same time, the calibration plate 2 can move up and down in the Z-axis direction of the support mechanism 1. By moving the industrial camera 19, the steel mesh and the calibration plate 2 are focused, and then the visual alignment of the steel mesh and the PCB board is achieved.

[0038] At the same time, the industrial camera 19 can be detachably mounted on the Z-axis fine-tuning mechanism 15, which is convenient for disassembly and installation. Since the X-axis motion mechanism 3 and the Y-axis motion mechanism 7 are fixed, it is only necessary to install the industrial camera 19 on the Z-axis fine-tuning mechanism 15. Through the cooperation of the X-axis motion mechanism 3 and the Y-axis motion mechanism 7, during the installation of the industrial camera 19, there is no need to re-install the table, which is conducive to the disassembly and installation of the industrial camera 19, and is conducive to ensuring the installation horizontality, verticality and consistency of the industrial camera 19.

[0039] Preferably, both the X-axis motion mechanism 3 and the Y-axis motion mechanism 7 can be driven by electric push rods or electric screws and used in conjunction with the in-position detection system.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A calibration device for a solder paste printer, characterized in that: It includes an X-axis motion mechanism and a Y-axis motion mechanism, wherein the Y-axis motion mechanism slides along the direction in which the X-axis motion mechanism is set; The Y-axis motion mechanism is slidably connected to a mounting base along the direction in which the Y-axis motion mechanism is set, and the mounting base is mounted with an industrial camera; The X-axis motion mechanism and the Y-axis motion mechanism are both arranged horizontally; Wherein, the mounting seat includes a first mounting seat, and an X-axis fine-tuning mechanism is installed on the first mounting seat.

2. A calibration device for a solder paste printer according to claim 1, characterized in that: The X-axis motion mechanism includes a pair of first mother rails, the pair of first mother rails form a first slideway, and the Y-axis motion mechanism is slidably connected in the first slideway.

3. The calibration device for a solder paste printer according to claim 2, characterized in that: The Y-axis motion mechanism includes a second mother rail, and both ends of the second mother rail are fixedly connected to male rails matching the first mother rail.

4. The calibration device for a solder paste printer according to claim 3, characterized in that: A first triangular rail groove matching the male rail is formed on the first female rail, and a limiting plate matching the first triangular rail groove is fixedly connected to the male rail.

5. A calibration device for a solder paste printer according to claim 3 or 4, characterized in that: A first waist hole is formed on the side wall of the first mother rail. A first bolt matching the first waist hole is installed on the first mother rail. The first bolt passes through the first waist hole and is threadedly connected to the male rail.

6. The calibration device for a solder paste printer according to claim 1, characterized in that: The X-axis fine-tuning mechanism includes a second mounting base, to which a plurality of first sliding rods are fixedly connected and a first threaded rod is rotatably connected; A first through hole matching the first slide rod is formed on the first mounting seat, and a first threaded hole matching the first threaded rod is formed on the first mounting seat. The first threaded hole and the first threaded rod are threadedly connected.

7. The calibration device for a solder paste printer according to claim 6, characterized in that: The second mounting seat is a Z-shaped structure, and the second mounting seat has a micro-motion panel, and the first mounting seat is provided with a fine-tuning positioning surface that matches the micro-motion panel.

8. A calibration device for a solder paste printer according to claim 6 or 7, characterized in that: A Z-axis fine-tuning mechanism is installed on the second mounting seat, and the Z-axis fine-tuning mechanism includes a mounting plate, the mounting plate is mounted on the upper end surface of the second mounting seat, a third threaded rod is rotatably connected to the mounting plate, and a second threaded hole matching the third threaded rod is opened on the second mounting seat; An industrial camera is detachably mounted on the upper end of the mounting plate.

9. The calibration device for a solder paste printer according to claim 8, characterized in that: A third threaded hole is provided on the industrial camera, a fourth through hole matching the third threaded hole is provided on the second mounting base, a second threaded rod matching the fourth through hole is slidably connected to the second mounting base, the second threaded rod passes through the fourth through hole, the mounting plate and the third threaded hole in sequence, and the mounting plate is threadedly connected to the second threaded rod.

10. The calibration device for a solder paste printer according to claim 1, characterized in that: The Y-axis motion mechanism includes a second mother rail, a second triangular rail groove is provided on the second mother rail, a male rail is slidably connected in the second triangular rail groove, a second waist hole is provided on the bottom wall of the second triangular rail groove, a second bolt matching the second waist hole is threadedly connected to the second mother rail, and the second bolt passes through the second waist hole and is threadedly connected to the male rail.

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