Flatness automatic detection jig for copying machine sub-component

Abstract

The utility model relates to the technical field of duplicator subcomponent detection, in particular to an automatic flatness detection jig for a duplicator subcomponent, which comprises a base and a bottom plate, a vacuum adsorption assembly is arranged in the middle of the base in a penetrating manner, and the vacuum adsorption assembly is sealed through combined installation of the base and the bottom plate. A rotating assembly is arranged in the base; the laser confocal scanning head has the beneficial effects that zero-damage measurement of the surface of a part and compression of an edge blind area are realized through 15-degree inclined incidence design of the laser confocal scanning head and the diameter of a light spot; 24 calibration points on the inner side of the reference datum ring form a closed-loop calibration system, and one calibration point is scanned every 15-degree rotation; correcting platform deformation and temperature drift errors in real time; the long-term use measurement stability is ensured; vacuum adsorption and servo rotation cooperative control are integrated, and the fixing reliability is improved through the broken line layout of vacuum adsorption holes; the base and the bottom plate adopt a clamping groove and bolt quick release structure; and the vacuumizing groove and the communicating groove are separated, so that cleaning and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of detection technology for copier sub-components, specifically to an automatic flatness detection fixture for copier sub-components. Background Technology

[0002] In the production of copier sub-components (such as guide rails, mirror supports, and drum bases), flatness is a key indicator affecting the overall assembly accuracy and imaging quality. Currently, the industry generally suffers from the following technical deficiencies: traditional dial indicator or probe testing requires manual point-by-point measurement, which is not only inefficient but also easily scratches the mirror / coated surface, and measurement accuracy is greatly affected by human factors; existing laser scanning equipment, due to its vertical incident light path design, creates blind spots at component edges, failing to meet the full contour accuracy requirements of copier guide rails; mechanical rotary scanning mechanisms suffer from gear meshing backlash and temperature drift issues, leading to significant accuracy degradation over long-term use; and under negative pressure fixing, slight component deformation is addressed by traditional fixtures lacking a real-time compensation mechanism, introducing additional measurement errors.

[0003] Therefore, we propose an automatic flatness detection fixture for copier sub-components to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses an automatic flatness detection fixture for a copier sub-component. The technical solution includes a base and a bottom plate. A vacuum adsorption component is disposed through the middle of the base, and the vacuum adsorption component is sealed by the combination of the base and the bottom plate. A rotating component is disposed inside the base. The rotating component includes a rotating groove, a rotating plate, a servo motor, and a transmission gear. The rotating groove is a T-shaped groove and is opened on the upper surface of the base. The rotating plate is an L-shaped plate and is rotatably installed inside the rotating groove. An external toothed ring is fixedly sleeved on the outer side wall of the rotating plate. The base has an opening inside... A gear cavity is connected to the rotating slot. The transmission gear is rotatably mounted inside the gear cavity, and the external teeth of the transmission gear mesh with the external gear ring. The servo motor is mounted on the upper surface of the base, and the output shaft of the servo motor extends through the upper surface of the base into the gear cavity and is fixedly connected to the middle of the upper surface of the transmission gear. A pad is fixedly mounted on the upper surface of the rotating plate. An electric push rod is mounted on the pad through a flange. The electric push rod is a self-powered electric push rod powered by its internal power supply. A laser confocal scanning head is fixedly mounted on the telescopic end of the electric push rod. A reference reference ring is provided on the upper surface of the base, and calibration points are evenly distributed on the inner sidewall of the reference reference ring.

[0005] As a preferred embodiment of this utility model, the vacuum adsorption assembly includes a vacuum tank, a vacuum pump, and vacuum adsorption holes. The vacuum pump is fixedly installed on the side wall of the base. The vacuum tank is opened on the lower surface of the base. The side wall of the vacuum tank has a vacuum extraction hole that is connected to the vacuum tube of the vacuum pump. The upper surface of the inner cavity of the vacuum tank has a zigzag connecting groove. The vacuum adsorption holes are evenly opened on the upper surface of the base and are connected to the connecting groove. All vacuum adsorption holes are located inside the reference ring.

[0006] As a preferred embodiment of this utility model, the lower surface of the base is provided with a slot and eight fixing holes, and the upper surface of the base plate is provided with a card plate corresponding to the slot and a detachable bolt corresponding to the fixing holes.

[0007] As a preferred embodiment of this utility model, the angle between the laser confocal scanning head and the telescopic end of the electric actuator is 15°.

[0008] As a preferred technical solution of this utility model, a microcontroller and a display are respectively provided on one end of the outer side wall of the base. The microcontroller is electrically connected to an external power supply. The microcontroller is electrically connected to the display, servo motor, laser confocal scanning head and vacuum pump through an inverter.

[0009] The beneficial effects of this utility model are:

[0010] 1. By using a 15° tilted incident laser confocal scanning head, the spot diameter is reduced, enabling zero-damage measurement of the component surface and minimizing edge blind zones;

[0011] 2. A closed-loop calibration system is formed by 24 calibration points inside the reference ring, with one calibration point scanned every 15° rotation; this corrects for platform deformation and temperature drift errors in real time, ensuring measurement stability over long-term use.

[0012] 3. Integrated vacuum adsorption and servo rotation coordinated control; the zigzag layout of the vacuum adsorption holes improves fixing reliability.

[0013] 4. The base and bottom plate adopt a quick-release structure with slots and bolts; the vacuum tank and connecting tank are designed separately for easy cleaning and maintenance; the electric push rod has its own power supply, and the laser head can be manually raised when the power is off. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This utility model is a structural explosion Figure 1 ;

[0017] Figure 3 This utility model is a structural explosion Figure 2 ;

[0018] Figure 4 This is a top view of the structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Schematic diagram of the AA section structure;

[0020] Figure 6 This utility model Figure 4 A schematic diagram of the BB cross-section structure.

[0021] In the diagram: 1. Base, 2. Base plate, 3. Vacuum adsorption assembly, 4. Rotation assembly, 5. Pad, 6. Electric push rod, 7. Laser confocal scanning head, 8. Reference ring, 9. Calibration point, 10. Microcontroller, 11. Display, 12. Fixing hole, 13. Slot, 14. Card plate, 15. Vacuum extraction slot, 16. Vacuum extraction hole, 17. Vacuum pump, 18. Vacuum tube, 19. Connecting slot, 20. Vacuum adsorption hole, 21. Servo motor, 22. Rotation slot, 23. Rotation plate, 24. Gear cavity, 25. Transmission gear, 26. External gear ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6As shown, this utility model discloses an automatic flatness detection fixture for a copier sub-component. The technical solution includes a base 1 and a base plate 2. A vacuum adsorption assembly 3 is installed through the middle of the base 1, and the vacuum adsorption assembly 3 is sealed by the combination of the base 1 and the base plate 2. A rotating assembly 4 is installed inside the base 1. The rotating assembly 4 includes a rotating groove 22, a rotating plate 23, a servo motor 21, and a transmission gear 25. The rotating groove 22 is a T-shaped groove located on the upper surface of the base 1. The rotating plate 23 is an L-shaped plate rotatably mounted inside the rotating groove 22. An external toothed ring 26 is fixedly sleeved on the outer wall of the rotating plate 23. The base 1 has an opening that connects with the rotating groove 22. A gear cavity 24 is connected to the base 1. A transmission gear 25 is rotatably installed inside the gear cavity 24, and the outer teeth of the transmission gear 25 mesh with the outer gear ring 26. A servo motor 21 is installed on the upper surface of the base 1, and the output shaft of the servo motor 21 extends through the upper surface of the base 1 into the gear cavity 24 and is fixedly connected to the middle of the upper surface of the transmission gear 25. A pad 5 is fixedly installed on the upper surface of the rotating plate 23. An electric push rod 6 is installed on the pad 5 through a flange. The electric push rod 6 is a self-powered electric push rod powered by its internal power supply. A laser confocal scanning head 7 is fixedly installed on the telescopic end of the electric push rod 6. A reference reference ring 8 is provided on the upper surface of the base 1, and calibration points 9 are evenly opened on the inner sidewall of the reference reference ring 8.

[0024] The copier guide plate is positioned in the center area of ​​the base 1 surface. Then, the vacuum adsorption assembly 3 is activated to adsorb and fix the guide plate. Next, the servo motor 21 is activated, causing the transmission gear 25 to rotate inside the gear cavity 24 via its output shaft. This, in turn, causes the external gear ring 26, meshing with the transmission gear 25, to rotate the rotating plate 23 inside the rotating groove 22. This causes the pad 5 fixedly mounted on the surface of the rotating plate 23 to revolve around the guide plate via the flange, driving the electric actuator 6. Simultaneously, the electric actuator 6 and the laser confocal scanning head 7 are activated. The electric actuator 6 drives the laser confocal scanning head 7... The laser confocal scanning head 7 is height adjusted and focused 10mm above the surface of the component. At the same time, the laser confocal scanning head 7 emits a beam at a 15° tilt angle to scan the surface of the component. Through multiple scans by the laser confocal scanning head 7, the measurement blind zone can be completely eliminated through complementary scanning. At the same time, the light wave of the laser confocal scanning head 7 can be dynamically calibrated by the calibration point 9 on the inner side wall of the reference reference ring 8. Then, the parameter map is generated by the scanning data of the laser confocal scanning head 7 to complete the flatness detection of the guide plate. At the same time, the vacuum pump 17 is turned off to release the vacuum, and the electric push rod 6 is raised to lift the laser confocal scanning head 7.

[0025] As a preferred technical solution of this utility model, the vacuum adsorption assembly 3 includes a vacuum tank 15, a vacuum pump 17, and vacuum adsorption holes 20. The vacuum pump 17 is fixedly installed on the side wall of the base 1. The vacuum tank 15 is opened on the lower surface of the base 1. The side wall of the vacuum tank 15 has a vacuum extraction hole 16 that is connected to the vacuum tube 18 of the vacuum pump 17. The upper surface of the inner cavity of the vacuum tank 15 has a zigzag connecting groove 19. The vacuum adsorption holes 20 are evenly opened on the upper surface of the base 1 and are connected to the connecting groove 19. The vacuum adsorption holes 20 are all located inside the reference ring 8. By starting the vacuum pump 17, the vacuum pump 17's extraction hole is used to vacuum the vacuum tank 15 through the vacuum tube 18 and the vacuum extraction hole 16. At the same time, the workpiece on the surface of the base 1 is vacuum-adsorbed and fixed through the connecting groove 19 inside the vacuum tank 15 and its connected vacuum adsorption holes 20.

[0026] As a preferred technical solution of this utility model, the lower surface of the base 1 is provided with a slot 13 and eight fixing holes 12, and the upper surface of the base plate 2 is provided with a locking plate 14 corresponding to the slot 13 and a detachable bolt corresponding to the fixing holes 12. By engaging the slot 13 and the locking plate 14, the fit between the base plate 2 and the base 1 can be improved. At the same time, a sealing strip is provided at the connection between the base 1 and the base plate 2 to improve the sealing effect of the base plate 2 on the vacuum groove 15. The detachable bolts corresponding to the fixing holes 12 can be used to quickly install and fix the base plate 2 and the base 1.

[0027] As a preferred technical solution of this utility model, the inclined angle between the laser confocal scanning head 7 and the telescopic end of the electric push rod 6 is 15°. By fixing the laser confocal scanning head 7 at an inclined angle of 15°, the laser can be incident at an inclined angle, thereby increasing the detection range and reducing the blind zone.

[0028] As a preferred technical solution of this utility model, a microcontroller 10 and a display 11 are respectively provided on one end of the outer side wall of the base 1. The microcontroller 10 is electrically connected to an external power supply. The microcontroller 10 is electrically connected to the display 11, the servo motor 21, the laser confocal scanning head 7 and the vacuum pump 17 through an inverter.

[0029] The working principle of this utility model is as follows: The copier guide plate is fixed in the center area of ​​the base 1 surface. Then, by starting the vacuum pump 17, the vacuum pump 17's suction port, through the vacuum tube 18 and vacuum suction hole 16, performs vacuum treatment on the vacuum tank 15. At the same time, the workpiece on the surface of the base 1 is vacuum-adsorbed and fixed by the vacuum negative pressure through the connecting groove 19 inside the vacuum tank 15 and its connected vacuum adsorption hole 20. Then, the servo motor 21 is started, causing the servo motor 21 to drive the transmission gear 25 to rotate inside the gear cavity 24 through its output shaft. The external gear ring 26, which meshes with the transmission gear 25, drives the rotating plate 23 to rotate inside the rotating groove 22. In this way, the pad 5 fixedly installed on the surface of the rotating plate 23 is connected to the flange. The electric actuator 6 revolves around the guide rail plate, simultaneously activating the electric actuator 6 and the laser confocal scanning head 7. The electric actuator 6 drives the laser confocal scanning head 7 to adjust its height, focusing at 10mm above the component surface. At the same time, the laser confocal scanning head 7 emits a beam at a 15° tilt angle, scanning the component surface. Through multiple scans by the laser confocal scanning head 7, complementary scanning can completely eliminate the measurement blind zone. Simultaneously, the light wave of the laser confocal scanning head 7 can be dynamically calibrated using the calibration point 9 on the inner wall of the reference reference ring 8. Then, the scanning data of the laser confocal scanning head 7 generates a parameter map, thereby completing the flatness detection of the guide rail plate. At the same time, the vacuum pump 17 is turned off to release the vacuum, and the electric actuator 6 is raised, lifting the laser confocal scanning head 7.

[0030] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0031] Components not described in detail in this article are existing technologies.

[0032] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An automatic flatness detection fixture for a copier sub-component, comprising a base (1) and a bottom plate (2), characterized in that, A vacuum adsorption assembly (3) is provided through the middle of the base (1), and the vacuum adsorption assembly (3) is sealed by the combination of the base (1) and the base plate (2). A rotating assembly (4) is provided inside the base (1). The rotating assembly (4) includes a rotating groove (22), a rotating plate (23), a servo motor (21), and a transmission gear (25). The rotating groove (22) is a T-shaped groove and is located on the upper surface of the base (1). The rotating plate (23) is an L-shaped plate and is rotatably installed inside the rotating groove (22). An external gear ring (26) is fixedly sleeved on the outer side wall of the rotating plate (23). A gear cavity (25) communicating with the rotating groove (22) is provided inside the base (1). 4) The transmission gear (25) is rotatably installed inside the gear cavity (24) and the external teeth of the transmission gear (25) mesh with the external gear ring (26). The servo motor (21) is installed on the upper surface of the base (1) and the output shaft of the servo motor (21) extends through the upper surface of the base (1) to the inside of the gear cavity (24) and is fixedly connected to the middle of the upper surface of the transmission gear (25). A pad (5) is fixedly installed on the upper surface of the rotating plate (23). An electric push rod (6) is installed on the pad (5) through a flange. A laser confocal scanning head (7) is fixedly installed on the telescopic end of the electric push rod (6). A reference reference ring (8) is provided on the upper surface of the base (1) and calibration points (9) are evenly opened on the inner sidewall of the reference reference ring (8).

2. The automatic flatness detection fixture for copier sub-components according to claim 1, characterized in that: The vacuum adsorption assembly (3) includes a vacuum tank (15), a vacuum pump (17), and vacuum adsorption holes (20). The vacuum pump (17) is fixedly installed on the side wall of the base (1). The vacuum tank (15) is opened on the lower surface of the base (1). The side wall of the vacuum tank (15) is penetrated by a vacuum hole (16), and the vacuum hole (16) is connected to the vacuum tube (18) of the vacuum pump (17). The upper surface of the inner cavity of the vacuum tank (15) is provided with a zigzag connecting groove (19). The vacuum adsorption holes (20) are evenly opened on the upper surface of the base (1) and are connected to the connecting groove (19). The vacuum adsorption holes (20) are all located inside the reference ring (8).

3. The automatic flatness detection fixture for copier sub-components according to claim 1, characterized in that: The lower surface of the base (1) is provided with a slot (13) and eight fixing holes (12). The upper surface of the base plate (2) is provided with a card plate (14) corresponding to the slot (13) and a detachable bolt corresponding to the fixing hole (12).

4. The automatic flatness detection fixture for copier sub-components according to claim 1, characterized in that: The angle between the laser confocal scanning head (7) and the telescopic end of the electric push rod (6) is 15°.

5. The automatic flatness detection fixture for copier sub-components according to claim 1, characterized in that: A microcontroller (10) and a display (11) are respectively provided on one side of the outer wall of the base (1). The microcontroller (10) is electrically connected to an external power supply. The microcontroller (10) is electrically connected to the display (11), servo motor (21), laser confocal scanning head (7) and vacuum pump (17) through an inverter.

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