A rapid grinding device for producing electric sofa frames
By designing a switching component for the high-speed grinding device, the problem of poor versatility of traditional grinding devices is solved, enabling flexible adaptation to processing needs and improving production efficiency, while reducing downtime and wear costs.
Patent Information
- Application Number
- CN202511505804.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2045-10-21
AI Technical Summary
Traditional grinding equipment cannot flexibly adapt to different processing needs, has poor versatility, and requires frequent replacement of grinding wheels, resulting in long downtime, low production efficiency, and high overall replacement costs after wear.
A rapid grinding device was designed, comprising a grinding unit body and a switching component. By using the slide wheel, movable plate, and guide port structure in the switching component, the coarse grinding wheel and fine grinding wheel ring can be quickly switched and hidden, thereby improving equipment adaptability and working efficiency.
It enables flexible adaptation to different processing needs, reduces downtime, improves production efficiency and equipment versatility, and avoids grinding wheel wear and replacement costs.
Smart Images
Figure CN120962491B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grinding equipment technology, and in particular to a rapid grinding device for the production of electric sofa frames. Background Technology
[0002] The core of using grinding equipment in the production of electric sofa frames lies in solving post-welding issues, which directly affects product quality and production efficiency. This process efficiently removes weld slag and burrs, providing a smooth surface for subsequent electrophoretic spraying, preventing paint film damage and premature rusting, and ensuring appearance and corrosion resistance. Simultaneously, it precisely grinds the mounting positions of moving parts such as motor push rods, ensuring smooth and quiet operation and improving functional reliability. It also thoroughly removes sharp edges, eliminating safety hazards such as cuts to personnel or punctures to fabric. Traditional grinding equipment typically relies on fixed-size grinding wheels, which cannot flexibly adapt to different processing needs, have poor versatility, and require frequent wheel replacements, leading to long downtime and low production efficiency. Furthermore, a single grinding wheel cannot balance efficiency and precision, and the overall replacement cost after wear is high. Summary of the Invention
[0003] The main objective of this invention is to provide a rapid grinding device for the production of electric sofa frames, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0005] A rapid grinding device for producing electric sofa frames includes a grinding device body. A first nut is threadedly connected to one side of the rotating shaft of the grinding device body. A protective cover is fixedly installed on one side of the outer shell of the grinding device body near the upper side of the first nut. A switching assembly is provided on the rotating shaft of the grinding device body. The switching assembly includes a fixed tube fixedly installed on the outside of the rotating shaft of the grinding device body. A slide wheel is fixedly installed on the outside of the fixed tube. Six sets of slide rail openings are opened on the inner side of the slide wheel. A movable part is provided at one end of the slide wheel corresponding to each of the six sets of slide rail openings. The movable plates are all fixedly equipped with coarse grinding wheels on their outer sides. Three of the six movable plates are fixedly equipped with square blocks near the slide rail opening. A round bar is fixedly equipped at one end of each of the three square blocks. The other three movable plates are fixedly equipped with square rods near the slide rail opening. A round block is fixedly equipped at one end of each of the three square rods. A round sleeve is slidably fitted on the outer side of each of the three square rods and round blocks. A first spring is fitted between the outer side of each of the three square rods and the inner wall of the round sleeve near the round block. A guide shaft is fixedly equipped at one end of each of the three round rods and round sleeves.
[0006] Preferably, a top sleeve is fixedly provided at one end of the slide wheel corresponding to the three sets of slide rail openings, and a control disk is provided at the other end of the slide wheel. A first guide opening is provided on the inner side of the control disk corresponding to the three sets of round sleeves, and a second guide opening is provided on the inner side of the control disk corresponding to the three sets of round bars. An arc-shaped opening is provided on each of the three sets of first and second guide openings. A threaded shaft is fixedly provided at one end of the control disk, and a cover is fitted on the outer side of the control disk near the coarse grinding wheel. A movable opening is provided on the inner side of the cover corresponding to the threaded shaft, and a second nut is threadedly connected to the outer side of the threaded shaft.
[0007] Preferably, three sets of drive plates are fixedly installed at the other end of the control panel, a limit ring is fixedly installed on the inner wall of the cover, a ring is installed between the inner sides of the three sets of drive plates on the outer side of the slide wheel, three sets of round shafts are fixedly installed on the outer side of the ring, a second spring is installed between the three sets of round shafts and the limit ring, a fine grinding wheel ring is fixedly installed on the outer side of the ring near the coarse grinding wheel, six sets of T-shaped blocks are fixedly installed on the inner side of the ring near the control panel, and T-shaped grooves are opened on the outer side of the slide wheel corresponding to the positions of the six sets of T-shaped blocks.
[0008] Preferably, the fixed tube is fixed to the rotating shaft of the grinding device body by bolts, the six sets of slide rail openings are evenly arranged in a circle, and the six sets of movable plates and coarse grinding wheels are circular in structure.
[0009] Preferably, the square block, square rod, and slide rail are slidably connected, and the round bar and round sleeve are movably connected in the slide rail.
[0010] Preferably, the three sets of top sleeves correspond to the positions of the movable pieces connected by the three sets of square rods. The height of the top sleeve is the same as the thickness of the movable piece. The control disk is sleeved on the outside of the fixed tube. The three sets of first guide openings are sleeved on the outside of the guide shaft on the round rod. The three sets of second guide openings are sleeved on the outside of the guide shaft on the round sleeve.
[0011] Preferably, the rotation of the first guide port will drive the inner guide shaft to move outward from the control disk and then move towards the inner side of the arc-shaped opening at the center. The rotation of the second guide port will keep the inner guide shaft stationary and then move towards the inner side of the arc-shaped opening at the center. The arc-shaped opening is the same as the center of the control disk. The threaded shaft passes through the inside of the movable opening. The cover is fixedly installed on the rotating shaft of the grinding device body by the first nut. The movable opening is arc-shaped. The second nut fixes the movable opening and the control disk on the arc-shaped opening.
[0012] Preferably, one side of the drive plate is inclined, the second spring is sleeved on the outer side of the drive plate, the second spring and the fine grinding wheel ring are disposed on the inner side of the arc-shaped opening, and the T-shaped block is slidably disposed on the inner side of the T-shaped groove.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The main rotating shaft of the grinding device drives the connected switching assembly to rotate, causing six sets of coarse grinding wheels to rotate rapidly and grind the sofa frame to be processed. When different degrees of coarseness are required, the second nut on the threaded shaft can be loosened and rotated clockwise along the movable opening. During this process, the rotating control disc drives the inner guide shaft to move through three sets of first and second guide openings, simultaneously driving three sets of round bars, square blocks, and connected movable plates and coarse grinding wheels to move. The three sets of round sleeves and square rods drive the connected movable plates and coarse grinding wheels to slide inside the six sets of slide rails. The guide shaft in the first guide opening operates as follows: First, the guide shaft moves outward and then towards the central arc-shaped opening. While the three sets of guide shafts in the first guide opening move outward, the three sets of guide shafts in the second guide opening remain stationary and then move directly towards the central arc-shaped opening. During this process, the three sets of coarse grinding wheels corresponding to the three sets of first guide openings move outward, while the other three sets of coarse grinding wheels first converge towards the center and then move towards the center. The three sets of movable plates that converge first contact the three sets of top sleeves along the slide rail opening. The three sets of top sleeves lift the three sets of movable plates and coarse grinding wheels, thus facilitating the subsequent convergence and retraction of the three sets of movable plates and coarse grinding wheels. This allows the six sets of coarse grinding wheels to retract, facilitating subsequent switching and concealment operations.
[0015] 2. The arc-shaped openings on the first and second guide ports allow the control disc to continue rotating. At this time, the six sets of guide shafts remain stationary after retraction, while the control disc drives the three sets of drive plates to push the three sets of round shafts to squeeze the second spring. The ring slides along the T-shaped groove through the T-block, pushing the fine grinding wheel ring out from the inside of the cover and covering the outside of the six sets of coarse grinding wheels after retraction. This completes the switching between the coarse grinding wheel and the fine grinding wheel ring, improving the adaptability and versatility of the equipment and increasing work efficiency.
[0016] 3. Tighten the second nut on the cover by rotating it in the opposite direction to fix the control panel. After rotating the threaded shaft in the opposite direction, the coarse grinding wheel and fine grinding ring can be switched back. The fine grinding ring is moved into the cover for concealment. According to the switching of coarse grinding wheel and fine grinding ring, the unused coarse grinding wheel or fine grinding ring is covered and stored for protection to avoid contact wear. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the inner structure of the switching component of the present invention;
[0019] Figure 3 for Figure 2Side view structural diagram;
[0020] Figure 4 This is a schematic diagram of a partial inner structure of the switching component of the present invention;
[0021] Figure 5 This is a schematic diagram of a partial cross-sectional view of the inner side of the switching component of the present invention;
[0022] Figure 6 This is a schematic diagram of the control panel structure of the present invention;
[0023] Figure 7 This is a schematic diagram of a partial structural change of the switching component of the present invention;
[0024] Figure 8 This is a partially enlarged structural diagram of the switching component of the present invention;
[0025] Figure 9 This is a schematic diagram of a partially unfolded structure of the switching component of the present invention.
[0026] In the diagram: 1. Grinding device body; 2. First nut; 3. Protective cover; 4. Switching assembly; 41. Fixed tube; 42. Slide wheel; 43. Slide opening; 44. Movable piece; 45. Coarse grinding wheel; 46. Square block; 47. Round bar; 48. Square rod; 49. Round block; 410. Round sleeve; 411. First spring; 412. Guide shaft; 413. Top sleeve; 414. Control panel; 415. First guide opening; 416. Second guide opening; 417. Arc-shaped opening; 418. Threaded shaft; 419. Cover; 420. Movable opening; 421. Second nut; 422. Drive piece; 423. Limiting ring; 424. Circular ring; 425. Round shaft; 426. Second spring; 427. Fine grinding wheel ring; 428. T-block; 429. T-slot. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship as a relative relationship of orientation or position, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0029] Please see Figures 1-9One embodiment of the present invention provides a rapid grinding device for the production of electric sofa frames, comprising a grinding device body 1, a first nut 2 threadedly connected to one side of the rotating shaft of the grinding device body 1, a protective cover 3 fixedly installed on one side of the outer shell of the grinding device body 1 near the upper side of the first nut 2, and a switching assembly 4 provided on the rotating shaft of the grinding device body 1, the switching assembly 4 including a fixed tube 41 fixedly installed on the outside of the rotating shaft of the grinding device body 1, and a slide rail wheel 42 fixedly installed on the outside of the fixed tube 41. The inner side of the slide wheel 42 has six sets of slide rail openings 43. A movable piece 44 is provided at one end of the slide wheel 42 corresponding to each of the six sets of slide rail openings 43. A coarse grinding wheel 45 is fixedly installed on the outer side of each of the six sets of movable pieces 44. A square block 46 is fixedly installed on one end of three of the six sets of movable pieces 44, and a round rod 47 is fixedly installed on one end of each of the three sets of square blocks 46. A square rod 48 is fixedly installed on one end of the other three sets of movable pieces 44, and a round rod 47 is fixedly installed on one end of each of the three sets of square rods 48. A circular block 49 is placed, and three sets of square rods 48 are slidably fitted with circular sleeves 410 on the outer sides of the circular block 49. A first spring 411 is fitted between the outer sides of the three sets of square rods 48 and the inner wall of the circular sleeves 410 near the circular block 49. A guide shaft 412 is fixedly installed at one end of each of the three sets of circular rods 47 and the circular sleeves 410. A top sleeve 413 is fixedly installed at one end of each of the three sets of slide rail openings 43. A control panel 414 is installed at the other end of the slide rail wheel 42. An opening is provided on the inner side of the control panel 414 corresponding to the position of each of the three sets of circular sleeves 410. There is a first guide port 415. The inner side of the control disk 414 is provided with a second guide port 416 corresponding to the position of the three sets of round bars 47. The three sets of first guide ports 415 and second guide ports 416 are provided with arc-shaped openings 417. A threaded shaft 418 is fixedly provided at one end of the control disk 414. A cover 419 is sleeved on the outer side of the control disk 414 near the coarse grinding wheel 45. A movable opening 420 is provided on the inner side of the cover 419 corresponding to the position of the threaded shaft 418. A second nut 421 is threadedly connected to the outer side of the threaded shaft 418.
[0030] The fixed tube 41 is bolted to the rotating shaft of the grinding device body 1. Six sets of slide rail openings 43 are evenly arranged in a circle. Six sets of movable plates 44 and coarse grinding wheels 45 are circular in structure. Square blocks 46 and square rods 48 are slidably set with the slide rail openings 43. Round bars 47 and round sleeves 410 are movably set in the slide rail openings 43. Three sets of top sleeves 413 correspond to the positions of the movable plates 44 connected by the three sets of square rods 48. The height of the top sleeves 413 is the same as the thickness of the movable plates 44. The control panel 414 is sleeved on the outside of the fixed tube 41. Three sets of first guide openings 415 are sleeved on the outside of the guide shafts 412 on the round bars 47. Three sets of second guide openings 416 are sleeved on the round sleeves 414. On the outside of the guide shaft 412 on 10, the rotation of the first guide port 415 will drive the inner guide shaft 412 to move outward towards the control disk 414 and then towards the inner side of the arc-shaped port 417 at the center position. The rotation of the second guide port 416 will keep the inner guide shaft 412 stationary and then move towards the inner side of the arc-shaped port 417 at the center. The arc-shaped port 417 is the same as the center of the control disk 414. The threaded shaft 418 passes through the inside of the movable port 420. The cover 419 is fixedly installed on the rotating shaft of the grinding device body 1 by the first nut 2. The movable port 420 is arc-shaped. The second nut 421 fixes the movable port 420 and the control disk 414 on the arc-shaped port 417.
[0031] The main body 1 of the grinding device rotates, driving the connected switching assembly 4 to rotate. This drives six sets of coarse grinding wheels 45 to rotate rapidly, grinding the sofa frame to be processed. When different degrees of coarseness are required, the second nut 421 on the threaded shaft 418 can be loosened, allowing it to rotate clockwise along the movable opening 420. During this process, the rotation control disk 414 drives the inner guide shaft 412 to move through three sets of first guide openings 415 and second guide openings 416, simultaneously moving three sets of round bars 47, square blocks 46, and connected movable plates 44 and coarse grinding wheels 45. The three sets of round sleeves 410 and square rods 48 drive the connected movable plates 44 and coarse grinding wheels 45 to slide inside the six sets of slide rail openings 43. The guide in the first guide opening 415... The shaft 412 operates by first moving the guide shaft 412 outward and then towards the central arc-shaped opening 417. While the three sets of guide shafts 412 in the first guide opening 415 move outward, the three sets of guide shafts 412 in the second guide opening 416 remain stationary and then move directly towards the central arc-shaped opening 417. During this process, the three sets of coarse grinding wheels 45 corresponding to the three sets of first guide openings 415 move outward, while the other three sets of coarse grinding wheels 45 first converge towards the center and then move towards the center. The three sets of movable plates 44 that converge first contact the three sets of top sleeves 413 along the slide rail opening 43. The three sets of top sleeves 413 lift the three sets of movable plates 44 and coarse grinding wheels 45, thereby facilitating the subsequent convergence and contraction of the three sets of movable plates 44 and coarse grinding wheels 45, allowing the six sets of coarse grinding wheels 45 to perform contraction work. Figure 7The presented state facilitates subsequent switching and hiding operations.
[0032] Three sets of drive plates 422 are fixedly installed at the other end of the control panel 414. A limit ring 423 is fixedly installed on the inner wall of the cover 419. A ring 424 is provided between the inner sides of the three sets of drive plates 422 on the outer side of the slide wheel 42. Three sets of round shafts 425 are fixedly installed on the outer side of the ring 424. A second spring 426 is provided between the three sets of round shafts 425 and the limit ring 423. A fine grinding wheel ring 427 is fixedly installed on the outer side of the ring 424 near the coarse grinding wheel 45. Six sets of T-blocks 428 are fixedly installed on the inner side of the ring 424 near the control panel 414. T-shaped grooves 429 are opened on the outer side of the slide wheel 42 at the positions corresponding to the six sets of T-blocks 428.
[0033] The drive plate 422 is inclined on one side, the second spring 426 is sleeved on the outer side of the drive plate 422, the second spring 426 and the fine grinding wheel ring 427 are located inside the arc-shaped opening 417, and the T-shaped block 428 is slidably located inside the T-shaped groove 429.
[0034] The arc-shaped openings 417 on the first guide opening 415 and the second guide opening 416 allow the control disk 414 to continue rotating. At this time, the six sets of guide shafts 412 remain stationary after retraction, while the control disk 414 drives the three sets of drive plates 422 to push the three sets of round shafts 425 to compress the second spring 426. The ring 424 slides along the T-shaped groove 429 through the T-shaped block 428, pushing the fine grinding wheel ring 427 out from the inside of the cover 419 and covering the outside of the six sets of coarse grinding wheels 45 after retraction. At this time, the coarse grinding wheel 45 and the fine grinding wheel ring 427 are completed. The switching between the two improves the adaptability and versatility of the equipment and increases work efficiency. Then, the second nut 421 on the cover 419 is tightened by rotating it in the opposite direction to fix the control panel 414. After rotating the threaded shaft 418 in the opposite direction, the coarse grinding wheel 45 and the fine grinding wheel ring 427 can be switched back. The fine grinding wheel ring 427 is moved into the cover 419 for hiding. According to the switching between the coarse grinding wheel 45 and the fine grinding wheel ring 427, the unused coarse grinding wheel 45 or the fine grinding wheel ring 427 is covered and stored for protection to avoid contact wear.
[0035] Working principle: During use, the rotating shaft of the grinding device body 1 drives the connected switching component 4 to rotate, driving six sets of coarse grinding wheels 45 to rotate rapidly to grind the sofa frame to be processed. When different degrees of coarseness are required, the second nut 421 on the threaded shaft 418 can be loosened and rotated clockwise along the movable opening 420. During this process, the rotating control disk 414 drives the inner guide shaft 412 to move through three sets of first guide openings 415 and second guide openings 416, respectively. At the same time, it drives three sets of round bars 47, square blocks 46, and connected movable plates 44 and coarse grinding wheels 45 to move. The three sets of round sleeves 410 and square rods 48 drive the connected movable plates 44 and coarse grinding wheels 45 to slide inside the six sets of slide rail openings 43. The guide shaft 412 operates by first moving outward and then towards the central arc-shaped opening 417. While the three guide shafts 412 in the first guide opening 415 move outward, the three guide shafts 412 in the second guide opening 416 remain stationary before moving directly towards the central arc-shaped opening 417. During this process, the three sets of coarse grinding wheels 45 corresponding to the three sets of first guide openings 415 move outward, while the other three sets of coarse grinding wheels 45 first converge towards the center and then move towards the center again. The three sets of movable plates 44 that converge first contact the three sets of top sleeves 413 along the slide rail opening 43. The three sets of top sleeves 413 lift the three sets of movable plates 44 and coarse grinding wheels 45, thus facilitating the subsequent convergence and contraction of the three sets of movable plates 44 and coarse grinding wheels 45, allowing the six sets of coarse grinding wheels 45 to retract. Figure 7 (The presented state) facilitates subsequent switching and concealment operations; additionally, the arc-shaped openings 417 on the first guide opening 415 and the second guide opening 416 allow the control disk 414 to continue rotating. At this time, the six sets of guide shafts 412 remain stationary after retraction, while the control disk 414 drives the three sets of drive plates 422 to push the three sets of round shafts 425 to compress the second spring 426. The ring 424 slides along the T-shaped groove 429 through the T-shaped block 428, pushing the fine grinding wheel ring 427 out from the inside of the cover 419 and covering it on the outside of the six sets of coarse grinding wheels 45 after retraction. At this time, the coarse grinding is completed. The switching between the coarse grinding wheel 45 and the fine grinding wheel ring 427 improves the adaptability and versatility of the equipment and increases work efficiency. Then, the second nut 421 on the cover 419 is tightened by rotating it in the opposite direction to fix the control panel 414. After rotating the threaded shaft 418 in the opposite direction, the coarse grinding wheel 45 and the fine grinding wheel ring 427 can be switched back. The fine grinding wheel ring 427 is moved into the cover 419 for concealment. According to the switching operation of the coarse grinding wheel 45 and the fine grinding wheel ring 427, the unused coarse grinding wheel 45 or the fine grinding wheel ring 427 is covered and stored for protection to avoid contact wear.
[0036] The grinding device body 1, the first nut 2, and the protective cover 3 in this invention are common knowledge in the field. Their working principle is already well-known technology, and the appropriate model is selected according to actual use, so they will not be explained in detail.
[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick grinding device for the production of electric sofa supports, comprising a grinding device body (1), characterized in that: The rotation shaft side of the grinding device body (1) is threadedly connected with a first nut (2), the shell side of the grinding device body (1) is fixedly installed with a protective cover (3) close to the upper side of the first nut (2), the rotating shaft of the grinding device body (1) is provided with a switching assembly (4), the switching assembly (4) comprises a fixed tube (41) fixedly installed on the outer side of the rotating shaft of the grinding device body (1), a slide rail wheel (42) is fixedly arranged on the outer side of the fixed tube (41), six groups of slide rail openings (43) are formed in the inner side of the slide rail wheel (42), a movable piece (44) is arranged at one end of the slide rail wheel (42) corresponding to the position of each of the six groups of slide rail openings (43), a coarse sand wheel piece (45) is fixedly arranged on the outer side of each of the six groups of movable pieces (44), a square block (46) is fixedly arranged at one end of each of three groups of the movable pieces (44) close to the slide rail opening (43), a round bar (47) is fixedly arranged at one end of each of the three groups of square blocks (46), a square rod (48) is fixedly arranged at one end of each of the other three groups of movable pieces (44) close to the slide rail opening (43), a round block (49) is fixedly arranged at one end of each of the three groups of square rods (48), a round sleeve (410) is slidably sleeved on the outer side of each of the three groups of square rods (48) and round blocks (49), a first spring (411) is sleeved between the outer side of each of the three groups of square rods (48) close to the round block (49) and the inner wall of the round sleeve (410), a guide shaft (412) is fixedly arranged at one end of each of the three groups of round bars (47) and round sleeves (410); A top sleeve (413) is fixedly arranged at one end of the slide rail wheel (42) corresponding to the position of each of the three groups of slide rail openings (43), a control disc (414) is arranged at the other end of the slide rail wheel (42), a first guide opening (415) is formed in the inner side of the control disc (414) corresponding to the position of each of the three groups of round sleeves (410), a second guide opening (416) is formed in the inner side of the control disc (414) corresponding to the position of each of the three groups of round bars (47), an arc-shaped opening (417) is arranged on each of the first guide opening (415) and the second guide opening (416), a threaded shaft (418) is fixedly arranged at one end of the control disc (414), a cover shell (419) is sleeved on the outer side of the control disc (414) close to one side of the coarse sand wheel piece (45), a movable opening (420) is formed in the inner side of the cover shell (419) corresponding to the position of the threaded shaft (418), and a second nut (421) is threadedly connected with the outer side of the threaded shaft (418). The other end of the control disc (414) is fixedly provided with three groups of driving pieces (422), the inner wall of the cover (419) is fixedly provided with a limiting ring (423), the outer side of the slide rail wheel (42) is provided with a circular ring (424) between the inner sides of the three groups of driving pieces (422), the outer side of the circular ring (424) is fixedly provided with three groups of circular shafts (425), the second spring (426) is arranged between the three groups of circular shafts (425) and the limiting ring (423), the fine grinding wheel ring (427) is fixedly arranged at the position close to the coarse grinding wheel piece (45) on the outer side of the circular ring (424), six groups of T-shaped blocks (428) are fixedly arranged on the inner side of the circular ring (424) close to the control disc (414), and T-shaped sliding grooves (429) are formed in the positions corresponding to the six groups of T-shaped blocks (428) on the outer side of the slide rail wheel (42).
2. The quick grinding device for producing electric sofa support according to claim 1, characterized in that: The fixed pipe (41) is fixed on the rotating shaft of the grinding device main body (1) through bolts, the six groups of slide rail openings (43) are circular and uniformly arranged, and the six groups of movable pieces (44) and the coarse grinding wheel piece (45) are circular structures.
3. The quick grinding device for producing electric sofa support according to claim 1, characterized in that: The square block (46) and the square rod (48) are slidingly arranged in the slide rail opening (43), and the circular rod (47) and the circular sleeve (410) are movably arranged in the slide rail opening (43).
4. The quick grinding device for producing electric sofa support according to claim 1, characterized in that: The three groups of top sleeves (413) correspond to the positions of the movable pieces (44) connected with the three groups of square rods (48) respectively, the height of the top sleeve (413) is the same as the thickness of the movable piece (44), the control disc (414) is arranged on the outer side of the fixed pipe (41), the three groups of first guide openings (415) are arranged on the outer sides of the guide shafts (412) on the circular rod (47), and the three groups of second guide openings (416) are arranged on the outer sides of the guide shafts (412) on the circular sleeve (410).
5. The quick grinding device for producing electric sofa support according to claim 1, characterized in that: Rotation of the first guide opening (415) drives the inner guide shaft (412) to move outward of the control disc (414) and then move into the inner side of the arc-shaped opening (417) at the center, rotation of the second guide opening (416) makes the inner guide shaft (412) first remain stationary and then move into the inner side of the arc-shaped opening (417) at the center, the arc-shaped opening (417) is the same as the center of the control disc (414), the threaded shaft (418) penetrates through the inner part of the movable opening (420), the cover (419) is fixedly installed on the rotating shaft of the grinding device main body (1) by the first nut (2), the movable opening (420) is arc-shaped, and the second nut (421) fixes the movable opening (420) and the control disc (414) on the arc-shaped opening (417).
6. The quick grinding device for producing electric sofa support according to claim 1, characterized in that: One side of the driving piece (422) is inclined, the second spring (426) is arranged at the position on the outer side of the driving piece (422), the second spring (426) and the fine grinding wheel ring (427) are arranged at the position on the inner side of the arc-shaped opening (417), and the T-shaped block (428) is slidingly arranged at the position on the inner side of the T-shaped sliding groove (429).
Citation Information
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