A fixing device with quick dismounting function of sandpaper at the end of a mechanical arm

Abstract

The utility model relates to mechanical arm polishing device technical field especially relates to a kind of fixing device with sandpaper quick dismounting function at the end of mechanical arm, it includes sandpaper fixing mechanism and sandpaper polishing subassembly for the end of mechanical arm;Sandpaper fixing mechanism includes fixed cylinder, and the outer side of lower end of fixed cylinder is slidably installed with slide cylinder, and the outer side bottom of slide cylinder is equidistantly fixedly connected with several fixed blocks, and the side of fixed block is provided with the plug-in protrusion, and the inner side bottom of slide cylinder is fixedly installed with high-strength spring and electromagnet ring, electromagnet ring is located high-strength spring outer side, and the upper end of high-strength spring is fixedly connected with pressure sensor, and several ventilation inclined holes are set on the side wall of fixed cylinder, and the outer side of ventilation inclined hole hole mouth is fixedly connected with inclined fan blade.The utility model is provided with sandpaper fixing mechanism, makes the dismounting and replacement of sandpaper very fast, can be replaced automatically by the internal program setting of mechanical arm, so that the polishing and polishing efficiency of mechanical arm to aluminium plate is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of robotic arm grinding devices, and in particular to a fixing device with a quick sandpaper removal and installation function at the end of a robotic arm. Background Technology

[0002] In automated production lines for aluminum plate grinding and polishing, robotic arms are widely used in the grinding process due to their flexible motion trajectory and stable operating accuracy.

[0003] In existing technologies, the end effector of a robotic arm typically fixes the sandpaper grinding component by means of bolt fastening or adhesive bonding. This type of fixing method has obvious defects in actual production: when the sandpaper needs to be replaced due to wear, the bolts need to be manually disassembled or the residual adhesive needs to be cleaned. This not only consumes a lot of time, but also easily causes the sandpaper installation position to shift due to human error, which in turn affects the surface accuracy of aluminum plate grinding and is difficult to adapt to the high-efficiency operation requirements of automated production lines.

[0004] To address the aforementioned issues, we propose a fixing device with a quick sandpaper removal and installation function at the end of a robotic arm. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fixing device with a quick sandpaper removal and installation function at the end of a robotic arm.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fixing device with quick sandpaper removal and installation function at the end of a robotic arm includes a sandpaper fixing mechanism and a sandpaper polishing assembly for the end of the robotic arm. The sandpaper fixing mechanism includes a fixing cylinder, a slide cylinder is slidably installed on the outer side of the lower end of the fixing cylinder, a plurality of fixing blocks are fixedly connected at equal intervals around the bottom circumference of the outer side of the slide cylinder, the side of the fixing blocks is provided with insertion protrusions, a high-strength spring and an electromagnet ring are fixedly installed on the bottom inner side of the slide cylinder, the electromagnet ring is located outside the high-strength spring, a pressure sensor is fixedly connected to the upper end of the high-strength spring, a plurality of ventilation inclined holes are opened on the side wall of the fixing cylinder, and inclined fan blades are fixedly connected to the outer side of the ventilation inclined hole openings.

[0007] The sandpaper polishing component is detachably connected to the electromagnet ring and the plug-in protrusion.

[0008] Furthermore, the sandpaper polishing assembly includes sandpaper, and a stainless steel metal frame is fixedly bonded to the upper end of the sandpaper.

[0009] Furthermore, several sets of inner side blocks are fixedly connected at equal intervals around the inner circumference of the stainless steel metal frame. Limiting holes are opened on the sides of the inner side blocks, and the limiting holes are adapted to the insertion protrusions.

[0010] Furthermore, the sandpaper fixing mechanism also includes a flange mounting plate, and the upper side of the flange mounting plate is provided with wiring holes.

[0011] Furthermore, three sets of lugs are fixedly connected to the outer wall of the fixed cylinder. The lugs are bolted to the bottom of the flange mounting plate, and the upper end of the pressure sensor is bolted to the bottom of the flange mounting plate.

[0012] Furthermore, a limiting protrusion is provided on the lower outer wall of the fixed cylinder, and a sliding groove adapted to the limiting protrusion is provided on the inner wall of the sliding cylinder.

[0013] Furthermore, a dustproof net is installed inside the ventilation duct.

[0014] Furthermore, a bent extension plate is provided on the side of the inclined fan blade, and the bent extension plate is bent inward.

[0015] Compared with related technologies, the fixing device with sandpaper quick-release function at the end of a robotic arm proposed in this utility model has the following advantages: In this invention, a fixing device with a quick sandpaper removal and installation function at the end of a robotic arm utilizes a sandpaper fixing mechanism. When replacing sandpaper, the electromagnet ring is de-energized, and the robotic arm drives the rotating shaft at its end to rotate in the opposite direction. The relative rotation between the sandpaper fixing mechanism and the sandpaper polishing component causes the insertion protrusion to disengage from the limiting insertion hole. When replacing with new sandpaper, the new sandpaper polishing component is aligned with the lower end of the slide cylinder. At this time, the electromagnet ring is energized, generating magnetic attraction to adhere the sandpaper polishing component to the lower end of the slide cylinder. During subsequent forward rotation polishing, the insertion protrusion automatically inserts into the limiting insertion hole of the sandpaper polishing component. Utilizing both magnetic attraction and insertion fixing methods, the sandpaper can be stably installed at the lower end of the slide cylinder. The entire sandpaper removal and replacement process is very quick and can be automated by the robotic arm's internal program. Simply place the sandpaper polishing component in the designated replacement area beforehand, thus increasing the efficiency of the robotic arm in polishing aluminum plates. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a fixing device with sandpaper quick-release function at the end of a robotic arm, as proposed in this utility model. Figure 1 ; Figure 2 A three-dimensional structural diagram of a fixing device with sandpaper quick-release function at the end of a robotic arm, as proposed in this utility model. Figure 2 ; Figure 3 A schematic diagram of the three-dimensional disassembly structure of a fixing device with sandpaper quick-release function at the end of a robotic arm, as proposed in this utility model. Figure 1 ; Figure 4 A schematic diagram of the three-dimensional disassembly structure of a fixing device with sandpaper quick-release function at the end of a robotic arm, as proposed in this utility model. Figure 2 ; Figure 5 A three-dimensional, disassembled structural diagram of the sandpaper fixing mechanism; Figure 6 This is a partial three-dimensional cross-sectional diagram of the sandpaper fixing mechanism.

[0017] In the diagram: 1. Sandpaper fixing mechanism; 11. Flange mounting plate; 12. Wiring hole; 13. Fixing cylinder; 14. Ear plate; 15. Sliding cylinder; 16. Fixing block; 17. Insertion protrusion; 18. Limiting protrusion; 19. Pressure sensor; 110. High-strength spring; 111. Electromagnetic ring; 112. Ventilation oblique hole; 113. Inclined fan blade; 114. Bending extension plate; 2. Sandpaper polishing assembly; 21. Sandpaper; 22. Stainless steel metal frame; 23. Inner side block; 24. Limiting insertion hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Reference Figures 1-6 A fixing device with quick sandpaper removal and installation function at the end of a robotic arm: including a sandpaper fixing mechanism 1 and a sandpaper polishing assembly 2 for the end of the robotic arm; the sandpaper fixing mechanism 1 includes a fixing cylinder 13, a slide cylinder 15 is slidably installed on the outer side of the lower end of the fixing cylinder 13, a plurality of fixing blocks 16 are fixedly connected at equal intervals around the bottom circumference of the outer side of the slide cylinder 15, the side of the fixing blocks 16 is provided with insertion protrusions 17, a high-strength spring 110 and an electromagnet ring 111 are fixedly installed on the bottom inner side of the slide cylinder 15, the electromagnet ring 111 is located outside the high-strength spring 110, a pressure sensor 19 is fixedly connected to the upper end of the high-strength spring 110, a plurality of ventilation inclined holes 112 are opened on the side wall of the fixing cylinder 13, and inclined fan blades 113 are fixedly connected to the outer side of the opening of the ventilation inclined holes 112.

[0020] By setting up the above method, the sliding fit between the slide cylinder 15 and the fixed cylinder 13 is realized, so that the high-strength spring 110 on the inner side has a certain compression space. With the elastic support of the high-strength spring 110, and in conjunction with the pressure sensor 19, the sanding pressure applied to the aluminum plate by the sandpaper grinding component installed at the front end of the entire device can be monitored in real time. The robotic arm can adjust the grinding pressure in real time based on this feedback to ensure the grinding and polishing quality. At the same time, the electromagnet ring 111 can quickly adsorb the stainless steel metal frame 22 to achieve initial fixation. The insertion protrusion 17 on the side of the fixing block 16 will automatically insert into the inner side of the limiting insertion hole 24 during the forward rotation grinding operation to form a stable fixed connection. The combination of the ventilation inclined hole 112 and the inclined fan blade 113 takes into account both internal heat dissipation and dust cleaning in the grinding area. Multiple functions work together to ensure the stable and efficient operation of the device.

[0021] In this method, the sandpaper fixing mechanism 1 also includes a flange mounting plate 11, and a wiring hole 12 is provided on the upper side of the flange mounting plate 11.

[0022] With the above-mentioned setup, the flange mounting plate 11 provides a standardized installation interface for the connection between the entire sandpaper fixing mechanism 1 and the end of the robotic arm, ensuring the stability and versatility of the connection and adapting to the installation requirements of different models of robotic arms; while the wiring hole 12 provides a neat passage for the wires of electrical components such as the pressure sensor 19 and the electromagnet ring 111, avoiding the wires from getting tangled or worn during the movement of the device, and ensuring the safety and stability of the electrical connection.

[0023] In this method, three sets of ear plates 14 are fixedly connected to the outer wall of the fixed cylinder 13. The ear plates 14 are installed at the bottom of the flange mounting plate 11 by bolts. The upper end of the pressure sensor 19 is installed at the bottom of the flange mounting plate 11 by bolts.

[0024] With the above-mentioned arrangement, the symmetrical distribution of the three sets of ear plates 14 makes the connection between the fixed cylinder 13 and the flange mounting plate 11 more uniform in terms of force. The bolt connection facilitates the disassembly and maintenance of the fixed cylinder 13, while ensuring the coaxiality of the fixed cylinder 13 after installation, and avoiding the impact of installation deviation on the grinding accuracy. The pressure sensor 19 is fixed to the bottom of the flange mounting plate 11 with bolts, which not only makes the connection firm, but also facilitates the calibration and replacement of the pressure sensor 19, ensuring the accuracy of the pressure monitoring data.

[0025] In this method, a limiting protrusion 18 is provided on the lower outer wall of the fixed cylinder 13, and a sliding groove adapted to the limiting protrusion 18 is provided on the inner wall of the sliding cylinder 15. The sliding groove is arranged along the axial direction of the sliding cylinder 15, and the limiting protrusion 18 slides up and down along its interior. The upper end of the sliding groove is closed to prevent the limiting protrusion 18 from disengaging. Through the setting of the limiting protrusion 18 and the sliding groove, the sliding connection between the fixed cylinder 13 and the sliding cylinder 15 is realized. A dustproof net is installed inside the ventilation inclined hole 112.

[0026] By setting it up in the above manner, the dustproof net can effectively block aluminum powder and other dust generated during the grinding process from entering the fixed cylinder 13 through the ventilation inclined hole 112, and prevent dust from adhering to the surface of internal components such as high-strength spring 110, electromagnet ring 111, and pressure sensor 19. This prevents the components from getting stuck, having poor contact, or having measurement errors due to dust accumulation, extends the service life of the internal components, and ensures the stable operation of the device.

[0027] In this method, a bent extension plate 114 is provided on the side of the inclined fan blade 113, and the bent extension plate 114 is bent inward.

[0028] With the above-described configuration, the ventilation oblique hole 112 is used to ventilate and dissipate heat for the internal electromagnet ring 111. During the grinding process, the inclined fan blade 113 on its outer side is driven by the front end of the robotic arm to rotate at high speed, forming a downward blowing effect. This can promptly disperse particles on the aluminum plate surface, avoiding affecting the grinding and polishing effect. In addition, the bent extension plate 114 provided on the outer end of the inclined fan blade 113 allows some airflow to be pushed into the ventilation oblique hole 112 while generating a downward blowing effect, thus forming an active heat dissipation effect for the internal electromagnet ring.

[0029] In this method, the sandpaper polishing component 2 includes sandpaper 21, a stainless steel metal frame 22 is fixedly bonded to the upper end of the sandpaper 21, and several sets of inner side blocks 23 are fixedly connected at equal intervals on the inner side circumference of the stainless steel metal frame 22. The inner side blocks 23 have limit holes 24 on their sides, and the limit holes 24 are adapted to the insertion protrusions 17.

[0030] With the above-mentioned configuration, the stainless steel frame 22 provides a stable support for the sandpaper 21, preventing the sandpaper 21 from wrinkling or breaking due to uneven force during the grinding process. It also provides a reliable magnetic attraction with the electromagnet ring 111, enabling the sandpaper grinding assembly 2 to be quickly pre-fixed. The limiting insertion hole 24 on the inner side block 23 is compatible with the insertion protrusion 17 on the fixing block 16, enabling precise insertion when the device rotates in the forward direction for grinding. Combined with the magnetic attraction, this forms a double fixation, further improving the stability of the sandpaper grinding assembly 2 installation. At the same time, the equidistant distribution design ensures uniform force distribution, preventing the sandpaper 21 from shifting during the grinding process.

[0031] It should be noted that this device is a grinding and fixing component installed at the front end of the robotic arm. This device is fixedly installed at the end of the robotic arm by screwing on the flange mounting plate on its top. The wiring of the internal electrical components is electrically connected to the end of the robotic arm through the wiring hole 12. The control of the internal electrical components is uniformly controlled by the controller on the robotic arm. The robotic arm is a common device in existing automated industries, including automatic control systems, which will not be described in detail here.

[0032] The working principle of the fixing device with sandpaper quick-release function at the end of the robotic arm provided by this utility model is as follows: During the sandpaper replacement phase, the robotic arm controller de-energizes the electromagnet ring 111, releasing the magnetic attraction to the stainless steel frame 22 in the sandpaper polishing assembly 2. Then, the robotic arm end rotates in the reverse direction, causing the fixing cylinder 13 and slide cylinder 15 of the sandpaper fixing mechanism 1 to rotate synchronously. This causes the insertion protrusion 17 on the bottom fixing block 16 of the slide cylinder 15 to disengage from the limiting insertion hole 24 of the inner side block 23 of the stainless steel frame 22, completing the sandpaper removal. When replacing with new sandpaper, the new sandpaper polishing assembly 2 with the stainless steel frame 22 is aligned with the lower end of the slide cylinder 15. The controller energizes the electromagnet ring 111 to generate magnetic attraction, adsorbing and attaching the sandpaper polishing assembly 2 to the lower end of the slide cylinder 15 for pre-fixation. Then, the robotic arm rotates forward, and under the rotational force, the insertion protrusion 17 automatically inserts into the limiting insertion hole 24, forming a double fixation of magnetic attraction and insertion, completing the rapid installation of the sandpaper.

[0033] During the grinding operation, the device is securely connected to the end of the robotic arm via the flange mounting plate 11. The high-strength spring 110 provides elastic support for the slide cylinder 15, and the pressure sensor 19 connected to its upper end monitors the grinding pressure of the sandpaper 21 on the aluminum plate in real time. The data is transmitted to the robotic arm controller via the wiring hole 12, and the controller adjusts the grinding pressure in real time accordingly. At the same time, the robotic arm drives the device to rotate at high speed. The inclined fan blades 113 on the outside of the ventilation inclined hole 112 on the side wall of the fixed cylinder 13 generate a downward blowing effect as it rotates, blowing away the grinding particles on the surface of the aluminum plate. The bent extension plate 114 of the inclined fan blades 113 guides part of the airflow into the ventilation inclined hole 112 to actively dissipate heat from the internal electromagnet ring 111. The dustproof net inside the ventilation inclined hole 112 can prevent dust from entering the device, ensuring the stable operation of components such as the high-strength spring 110 and the pressure sensor 19.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixing device with quick dismounting function of a mechanical arm end with sandpaper, characterized in that, Includes a sandpaper fixing mechanism (1) for the end of a robotic arm and a sandpaper polishing assembly (2); The sandpaper fixing mechanism (1) includes a fixing cylinder (13), a sliding cylinder (15) is slidably installed on the outer side of the lower end of the fixing cylinder (13), a number of fixing blocks (16) are fixedly connected at equal intervals around the bottom of the outer side of the sliding cylinder (15), and the side of the fixing block (16) is provided with a plug-in protrusion (17). A high-strength spring (110) and an electromagnet ring (111) are fixedly installed on the bottom of the inner side of the sliding cylinder (15). The electromagnet ring (111) is located outside the high-strength spring (110). A pressure sensor (19) is fixedly connected to the upper end of the high-strength spring (110). A number of ventilation inclined holes (112) are opened on the side wall of the fixing cylinder (13), and an inclined fan blade (113) is fixedly connected to the outer side of the opening of the ventilation inclined hole (112). The sandpaper polishing assembly (2) is detachably connected to the electromagnet ring (111) and the plug-in protrusion (17).

2. The fixing device with quick disassembly and assembly function at the end of the mechanical arm with sandpaper according to claim 1, characterized in that, The sandpaper polishing assembly (2) includes sandpaper (21), and a stainless steel metal frame (22) is fixedly bonded to the upper end of the sandpaper (21).

3. The fixing device with quick disassembly and assembly function of the mechanical arm end with sandpaper according to claim 2, characterized in that, The stainless steel metal frame (22) has several sets of inner side blocks (23) fixedly connected at equal intervals around its inner side. The inner side blocks (23) have limit holes (24) on their sides, and the limit holes (24) are adapted to the insertion protrusions (17).

4. The fixing device with quick disassembly and assembly function at the end of the mechanical arm with sandpaper according to claim 1, characterized in that, The sandpaper fixing mechanism (1) also includes a flange mounting plate (11), and a wiring hole (12) is provided on the upper side of the flange mounting plate (11).

5. A fixing device with sandpaper quick-release function at the end of a robotic arm according to claim 1, characterized in that, Three sets of ear plates (14) are fixedly connected to the outer wall of the fixed cylinder (13). The ear plates (14) are installed at the bottom of the flange mounting plate (11) by bolts. The upper end of the pressure sensor (19) is installed at the bottom of the flange mounting plate (11) by bolts.

6. The fixing device with quick disassembly and assembly function of the mechanical arm end with sandpaper according to claim 1, characterized in that, The lower outer wall of the fixed cylinder (13) is provided with a limiting protrusion (18), and the inner wall of the sliding cylinder (15) is provided with a sliding groove that matches the limiting protrusion (18).

7. The fixing device with quick dismounting function of the mechanical arm end with sandpaper according to claim 1, characterized in that, A dustproof net is installed inside the ventilation slant hole (112).

8. The fixing device with quick disassembly and assembly function of the mechanical arm end with sandpaper according to claim 1, characterized in that, The inclined fan blade (113) is provided with a bent extension plate (114) on its side, and the bent extension plate (114) is bent inward.

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