Sand unstick mechanism and propeller sand mold scraping device

Abstract

The utility model provides a kind of sand removing mechanism and propeller sand mould scraping equipment, sand removing mechanism acts on sand scraping head, the sand removing mechanism includes adjusting part;Scraping piece is connected with the adjusting part transmission, the working surface of the scraping piece and the sand scraping head is attached, the adjusting part can rotate and drive the scraping piece rotation to adjust the position of the scraping piece on the sand scraping head.By setting scraping piece and adjusting part transmission connection, the working surface of scraping piece and sand scraping head is attached, when sand scraping head is in operation, it is in rotating state, and the position of scraping piece is relatively fixed, since the working surface of scraping piece and sand scraping head is attached, with the rotation of sand scraping head, scraping piece can remove gravel attached on the working surface of sand scraping head, so that the surface of sand scraping head is smooth, and precision is high when scraping.In the need of adjusting the position of scraping piece, rotating adjusting part, drive scraping piece to rotate, so that scraping piece is in different position on sand scraping head, to adapt to different industrial robot sand scraping posture.

Description

Technical Field

[0001] This utility model belongs to the field of ship propeller sand casting technology, specifically involving a sand removal mechanism and a propeller sand mold scraping device. Background Technology

[0002] The following problems exist in the sand-scraping operation of sand-scraping equipment: Sand particle adhesion: Sand particles easily adhere to the surface of the sand-scraping head during the scraping process, affecting the scraping accuracy. Low efficiency of manual cleaning: Traditional methods of manually wiping off the adhering sand with a damp cloth or cleaning it with air blowing affect the continuity of automation. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, which is that sand particles easily adhere to the tool surface during the scraping process and the manual cleaning efficiency is low. This invention provides a sand removal mechanism and a propeller sand mold scraping device.

[0004] The first aspect of this utility model provides a sand-removing mechanism that acts on a sand-scraping head, the sand-removing mechanism comprising:

[0005] Adjustment component

[0006] The scraper blade is connected to the adjusting member in a transmission manner. The scraper blade is in contact with the working surface of the sand scraper head. The adjusting member can rotate and drive the scraper blade to rotate in order to adjust the position of the scraper blade on the sand scraper head.

[0007] Furthermore, it also includes:

[0008] A connecting rod, one end of which is connected to the adjusting member;

[0009] An installation plate is disposed below the adjusting member, the scraper is disposed on the installation plate, and the other end of the connecting rod is connected to the installation plate. The rotation of the adjusting member drives the connecting rod to rotate, which in turn drives the installation plate to rotate.

[0010] Furthermore, the mounting plate is also provided with a scraper positioning plate, the scraper is disposed on the positioning plate, the angle between the scraper and the positioning plate is adjustable, and the position of the scraper positioning plate on the mounting plate is adjustable.

[0011] Furthermore, the adjusting component includes a movable ring, a first fixed ring, and a second fixed ring. The movable ring is sleeved on the first fixed ring, and the second fixed ring is fixed to the bottom of the first fixed ring. The movable ring can rotate relative to the first fixed ring.

[0012] Furthermore, a limiting structure is provided between the movable ring and the second fixed ring.

[0013] Furthermore, the limiting structure includes a positioning bead and a positioning hole. One of the movable ring and the second fixed ring is provided with the positioning bead, and the other of the two is provided with the positioning hole. The positioning bead is disposed in the positioning hole.

[0014] Furthermore, the second fixed ring is provided with a plurality of mounting holes in a ring array, and a plurality of the positioning beads are installed in the mounting holes, and the movable ring is provided with a plurality of the positioning holes in a ring array.

[0015] Furthermore, a positioning post is provided below the positioning bead, the positioning post is disposed within the mounting hole, and the positioning bead is movably disposed within the positioning post.

[0016] The second aspect of this utility model provides a propeller-driven sand mold scraping device, comprising:

[0017] Industrial robots;

[0018] An electric spindle is installed at the output end of the industrial robot;

[0019] The scraping head is located at the output end of the electric spindle;

[0020] And a sand-removing mechanism as described in any of the above embodiments, wherein the adjusting member is mounted on the electric spindle.

[0021] Furthermore, the scraping head is a stainless steel scraping head.

[0022] Compared with existing technologies, the advantages of this invention are as follows: By setting a transmission connection between the scraper and the adjusting component, the scraper is in contact with the working surface of the scraping head. When the scraping head is in operation, it is rotating, while the position of the scraper is relatively fixed. Because the scraper is in contact with the working surface of the scraping head, as the scraping head rotates, the scraper can remove the sand and gravel adhering to the working surface of the scraping head, making the surface of the scraping head smooth and achieving high precision during scraping. When it is necessary to adjust the position of the scraper, the adjusting component is rotated, causing the scraper to rotate and be positioned in different positions on the scraping head to adapt to different scraping postures of industrial robots. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the propeller sand mold scraping equipment provided by this utility model;

[0025] Figure 2 This is an exploded structural diagram of the sand-removing mechanism provided by this utility model installed on the electric spindle;

[0026] Figure 3 This is a schematic diagram of the structure of the sand-removing mechanism provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the movable ring provided by this utility model;

[0028] Figure 5 This is a schematic diagram of the positioning bead and positioning post provided by this utility model.

[0029] Figure label:

[0030] 10. Industrial robot; 20. Electric spindle; 30. Scraper head; 40. Sand removal mechanism; 41. Adjusting component; 411. Moving ring; 4111. Positioning hole; 412. First fixed ring; 413. Second fixed ring; 4131. Mounting hole; 414. Positioning bead; 415. Positioning pin; 42. Scraper blade; 43. Connecting rod; 44. Mounting plate; 441. Threaded hole; 45. Scraper blade positioning plate; 451. Through hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] like Figure 1 As shown, to achieve the scraping of propeller blades, this application provides a propeller sand-scraping device, including an industrial robot 10, an electric spindle 20, a scraping head 30, and a de-adhesive sand mechanism 40. The electric spindle 20 is located at the output end of the industrial robot 10, and the industrial robot 10 drives the electric spindle 20 to move at different positions. The scraping head 30 is located at the output end of the electric spindle 20, and the rotation of the scraping head 30 is achieved by the movement of the output end of the electric spindle 20. The scraping action is highly automated and precise, achieved by the industrial robot 10 driving the electric spindle 20 and the scraping head 30. Since sand easily adheres to the surface of the scraping head 30 during the scraping process, the de-adhesive sand mechanism 40, in conjunction with the continuously rotating scraping head 30, can remove the sand adhering to the surface of the scraping head 30, avoiding the interruption of the traditional manual cleaning process and ensuring the continuity of automated production.

[0033] It's important to understand that the electric spindle 20 is a new technology in the CNC machine tool field that integrates the machine tool spindle with the electric spindle 20. The electric spindle 20 boasts advantages such as compact structure, light weight, low inertia, low noise, and fast response. Furthermore, it features high speed and high power, simplifying machine tool design and facilitating spindle positioning. The industrial robot 10 is a KUKA robotic arm, which offers advantages such as high automation and ease of operation. When the electric spindle 20 and the sanding head 30 are connected to the KUKA robotic arm, the following advantages can be achieved: sanding is achieved by directly controlling the movements of the robotic arm, electric spindle 20, and sanding head 30 through a program, eliminating the mold-making process; the electric spindle 20 and the KUKA robotic arm work together to achieve fully automated operation; and the rotational movements of the KUKA robotic arm and sanding head 30 eliminate human error, significantly improving scraping accuracy.

[0034] like Figure 2 and Figure 3 As shown, the sand-removing mechanism 40 includes an adjusting member 41 and a scraper 42. The scraper 42 is connected to the adjusting member 41 and is in contact with the working surface of the sand-removing head 30. When the sand-removing head 30 is in operation, it is rotating, while the position of the scraper 42 is relatively fixed. Because the scraper 42 is in contact with the working surface of the sand-removing head 30, as the sand-removing head 30 rotates, the scraper 42 can remove the sand and gravel adhering to the working surface of the sand-removing head 30, making the surface of the sand-removing head 30 smooth and achieving high precision during scraping. When it is necessary to adjust the position of the scraper 42, the adjusting member 41 is rotated, causing the scraper 42 to rotate and be positioned in different positions on the sand-removing head 30 to adapt to different sand-removing postures of the industrial robot 10.

[0035] It's important to understand that the scraper head 30 is conical, with its side serving as the working surface for scraping, and the scraper blade 42 is in contact with its side. To avoid wear on the scraper head 30, a 405 stainless steel scraper head 30 is used. This stainless steel scraper head 30 has the advantages of high wear resistance, low damage rate, and a smoother, finer surface after scraping. Different sizes of scraper heads 30 are available, such as large (40°), medium (65°), and small (65°), basically achieving full coverage. The large scraper head (40°) scrapes most areas and works in conjunction with the sand-removing mechanism 40. The medium and small scraper heads scrape areas with limited space.

[0036] In one embodiment, the rotation of the scraper 42 is driven by the connecting rod 43 and the mounting plate 44. The mounting plate 44 is installed on the top surface of the scraper head 30. The connecting rod 43 is disposed between the adjusting member 41 and the mounting plate 44. One end of the connecting rod 43 is fixed to the adjusting member 41, and the other end is fixed to the mounting plate 44. The mounting plate 44 is disposed below the adjusting member 41, and the scraper 42 is disposed on the mounting plate 44. When it is necessary to adjust the position of the scraper 42, the adjusting member 41 rotates, which drives the connecting rod 43 to rotate, which in turn drives the mounting plate 44 to rotate. The rotation of the mounting plate 44 can change the position of the scraper 42 and adjust it to the required position.

[0037] To facilitate the installation of the scraper 42, a scraper positioning plate 45 is also provided on the mounting plate 44. The connecting rod 43 is located on one side of the scraper positioning plate 45 and abuts against the scraper positioning plate 45. The rotation of the scraper 42 is achieved by the connecting rod 43 moving the scraper positioning plate 45 to drive the mounting plate 44 to rotate.

[0038] The scraper positioning plate 45 is partially located above the scraper head 30 and extends beyond the scraper head 30. The scraper blade 42 is mounted on the scraper positioning plate 45 via a shaft pin. A mounting groove is provided on the scraper positioning plate 45, and the scraper blade 42 is positioned within the mounting groove. The mounting groove limits the position of the scraper blade 42, preventing it from changing position during sand removal. A threaded hole 441 is provided on the mounting plate 44, with multiple threaded holes 441 spaced apart in a direction away from the center of the scraper positioning plate 45. Multiple through holes 451 are provided on the scraper positioning plate 45. The scraper positioning plate 45 and the mounting plate 44 are fixed together by bolts passing through the through holes 451 and the threaded holes 441. When the position of the scraper positioning plate 45 relative to the mounting plate 44 needs to be adjusted, different through holes 451 correspond to the threaded holes 441 and are fixed by bolts, thus making the position of the scraper positioning plate 45 on the mounting plate 44 adjustable. When different sizes of scraper heads 30 are needed for different products, the position of the scraper positioning plate 45 can be adjusted. The sand removal mechanism 40 of this application is applicable to products of different sizes and has high applicability.

[0039] Combination Figure 2 , Figure 4 and Figure 5In one embodiment, the adjusting member 41 includes a movable ring 411, a first fixed ring 412, and a second fixed ring 413. The inner diameter of the movable ring 411 is larger than the inner diameter of the first fixed ring 412 and the second fixed ring 413. The inner diameter of the second fixed ring 413 is larger than the inner diameter of the first fixed ring 412. The movable ring 411 is sleeved on the first fixed ring 412. The second fixed ring 413 is fixed to the bottom of the first fixed ring 412. The movable ring 411 can rotate relative to the first fixed ring 412. The first fixed ring 412 is sleeved and fixed on the electric spindle 20. Correspondingly, the second fixed ring 413 and the movable ring 411 are both sleeved on the electric spindle 20. One end of the connecting rod 43 is used for driving and the other end is inserted into the movable ring 411. When it is necessary to adjust the position of the scraper 42, the movable ring 411 is rotated. The movable ring 411 drives the connecting rod 43 to rotate. The connecting rod 43 moves the scraper positioning plate 45 to make the mounting plate 44 rotate, thereby realizing the adjustment of the position of the scraper 42. This adjustment method is convenient to operate, simple in structure, easy to install and occupies little space.

[0040] To facilitate limiting the rotation of the movable ring 411 to a set position, a limiting structure is provided between the movable ring 411 and the second fixed ring 413. The limiting structure includes a positioning bead 414 and a positioning hole 4111. The movable ring 411 is provided with a positioning hole 4111, and the positioning bead 414 is disposed in the positioning hole 4111. A positioning post 415 is also provided below the positioning bead 414. The positioning post 415 is inserted into the second fixing ring 413, and the positioning bead 414 is partially disposed inside the positioning post 415. In some embodiments, a spring is provided between the positioning bead 414 and the positioning post 415. The elastic force of the spring causes the positioning bead 414 to be embedded into the positioning hole 4111 for limiting. When it is necessary to adjust the position of the scraper 42, the movable ring 411 is rotated, and the manually applied force compresses the spring, causing the positioning bead 414 to enter the interior of the positioning post 415. When rotating to the next positioning hole 4111, the positioning bead 414 enters the positioning hole 4111 under the action of the spring force, achieving limiting again. Of course, in other embodiments, the positioning hole 4111 can be set on the second fixing ring 413, and the positioning bead 414 can be set on the movable ring 411, which can be adjusted according to needs and is not limited here.

[0041] The second fixed ring 413 has a ring array of multiple mounting holes 4131, and multiple positioning pins 415 are installed in the mounting holes 4131. The movable ring 411 has a ring array of multiple positioning holes 4111. The number of mounting holes 4131, positioning pins 414, and positioning holes 4111 are the same. Specifically, there are 16 mounting holes 4131, positioning pins 415, and positioning holes 4111. This ensures that the movable ring 411 rotates at least 22.5° each time, achieving indexing positioning and allowing adjustment of the scraper 42 position around the rotation direction of the electric spindle 20.

[0042] This application sets a scraper 42 mounted on a scraper positioning plate 45. The scraper positioning plate 45 is connected to the movable disc 411 via a connecting rod 43. The scraper 42 is in contact with the working surface of the scraper head 30. When the scraper head 30 is in operation, it is in a rotating state, while the position of the scraper 42 is relatively fixed. Since the scraper 42 is in contact with the working surface of the scraper head 30, as the scraper head 30 rotates under the drive of the electric spindle 20, the scraper 42 can remove the sand and gravel attached to the working surface of the scraper head 30, making the surface of the scraper head 30 smooth and achieving high precision during scraping.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A de-bonding mechanism acting on a sanding head, characterized in that, The sand-removing mechanism includes: Adjustment components; The scraper blade is connected to the adjusting member in a transmission manner. The scraper blade is in contact with the working surface of the sand scraper head. The adjusting member can rotate and drive the scraper blade to rotate in order to adjust the position of the scraper blade on the sand scraper head.

2. The desanded mechanism according to claim 1, characterized in that, Also includes: A connecting rod, one end of which is connected to the adjusting member; An installation plate is disposed below the adjusting member, the scraper is disposed on the installation plate, and the other end of the connecting rod is connected to the installation plate. The rotation of the adjusting member drives the connecting rod to rotate, which in turn drives the installation plate to rotate.

3. The sand-removing mechanism according to claim 2, characterized in that, The mounting plate is also provided with a scraper positioning plate, the scraper is disposed on the positioning plate, the angle between the scraper and the positioning plate is adjustable, and the position of the scraper positioning plate on the mounting plate is adjustable.

4. The sand-removing mechanism according to any one of claims 1 to 3, characterized in that, The adjusting component includes a movable ring, a first fixed ring, and a second fixed ring. The movable ring is sleeved on the first fixed ring, and the second fixed ring is fixed to the bottom of the first fixed ring. The movable ring can rotate relative to the first fixed ring.

5. The sand-removing mechanism according to claim 4, characterized in that, A limiting structure is provided between the movable ring and the second fixed ring.

6. The sand-removing mechanism according to claim 5, characterized in that, The limiting structure includes a positioning bead and a positioning hole. One of the movable ring and the second fixed ring is provided with the positioning bead, and the other of the two is provided with the positioning hole. The positioning bead is disposed in the positioning hole.

7. The sand-removing mechanism according to claim 6, characterized in that, The second fixed ring has a ring array of multiple mounting holes, and multiple positioning beads are installed in the mounting holes. The movable ring has a ring array of multiple positioning holes.

8. The sand-removing mechanism according to claim 7, characterized in that, A positioning post is provided below the positioning bead, the positioning post is disposed in the mounting hole, and the positioning bead is movably disposed in the positioning post.

9. A propeller sand mold scraping apparatus characterized by, include: Industrial robots; An electric spindle is installed at the output end of the industrial robot; The scraping head is located at the output end of the electric spindle; And a sand-removing mechanism as described in any one of claims 1 to 8, wherein the adjusting member is mounted on the electric spindle.

10. The propeller sand mold scraping equipment according to claim 9, characterized in that, The scraper head is a stainless steel scraper head.

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