Horn mesh electric planer machining clamp with positioning structure

Abstract

The invention discloses a speaker mesh electric planer machining fixture with a positioning structure, which comprises a machining table for speaker mesh electric planer machining, L-shaped brackets are arranged at the tops of the two sides of the machining table, and L-shaped chucks for clamping a speaker mesh are fixedly connected to the ends, close to each other, of the two L-shaped brackets. According to the horn mesh machining device, the two L-shaped chucks move in the opposite directions to preliminarily clamp a horn mesh to be machined, the fixing head moves downwards to further clamp and fix the horn mesh, meanwhile, a cylindrical positioning head in the positioning mechanism is used for positioning and matching a rotating column, and therefore the horn mesh can be machined more accurately. The rotating column, the circular gear, the positioning column and the fixing head are prevented from loosening, so that the fixing head can clamp and fix the speaker mesh more firmly and is not prone to displacement, the stability of the speaker mesh in follow-up electric planing machining is guaranteed, meanwhile, the situation that clamping and positioning are not firm due to the fact that an existing clamping device is single in structure is avoided, and the machining efficiency is improved. And smooth proceeding of subsequent electric planing machining is ensured.

Description

Technical Field

[0001] This invention relates to the field of fixture technology, and in particular to a fixture for machining a horn mesh electric planer with a positioning structure. Background Technology

[0002] In the processing of speaker grilles, electric planing is one of the key steps to achieve a smooth surface and regular edges. Because speaker grilles are typically made of thin metal sheets (such as aluminum alloy or stainless steel) or plastic sheets, they are characterized by their thinness and poor rigidity. During electric planing, they are prone to displacement and deformation, leading to defects such as dimensional deviations, surface scratches, and edge burrs, severely impacting the product qualification rate. Therefore, a fixture is needed to reliably position and clamp the speaker grilles during processing.

[0003] However, in existing technologies, the fixtures used for electric planing of speaker grilles are mostly general-purpose fixtures, such as flat-jaw pliers and pressure plate fixtures. These fixtures are prone to problems such as excessive clamping force leading to deformation of the speaker grille, and insufficient clamping force failing to guarantee stability during processing and causing displacement. Furthermore, traditional clamping devices have a simple structure, resulting in unreliable clamping and positioning, affecting subsequent normal electric planing processing. Therefore, this invention proposes a fixture for electric planing of speaker grilles with a positioning structure. Summary of the Invention

[0004] Based on the technical problems existing in the background art, the present invention proposes a horn mesh electric planer machining fixture with a positioning structure.

[0005] This invention proposes a horn mesh electric planer machining fixture with a positioning structure, including a machining table for horn mesh electric planing. L-shaped supports are provided on the top of both sides of the machining table. L-shaped chucks for clamping the horn mesh are fixedly connected to the ends of the two L-shaped supports that are close to each other, and buffer pads are provided on the inner sides of the L-shaped chucks. A mounting cavity is provided on the machining table, and a clamping and moving mechanism is provided inside the mounting cavity. A moving column is movably mounted inside the mounting cavity through the clamping and moving mechanism, and the outer end of the moving column is fixedly connected to the L-shaped supports.

[0006] A positioning box is fixedly connected to the top of the L-shaped chuck. A guide rail is provided on the side wall of the positioning box. A guide block is slidably installed on the guide rail. A positioning post is fixedly connected to the guide block. The bottom end of the positioning post extends movably through to the bottom of the L-shaped chuck and is fixedly connected to a fixing head for pressing and fixing the speaker grille. The positioning post has a toothed groove, and a spur gear meshes with the positioning post through the toothed groove. A rotating post is fixedly sleeved on the spur gear. A rotating support is also fixedly installed in the positioning box on the left side of the positioning post. The left end of the rotating post rotates through to the left side of the rotating support. A first motor is fixedly installed on the inner wall of the left side of the positioning box. The output shaft of the first motor is fixedly connected to the rotating post. A positioning mechanism for positioning the rotating post is also provided on the rotating support.

[0007] Preferably, the positioning mechanism includes a through hole on a rotating support, a rotating column movably passing through the through hole, and anti-slip patterns evenly distributed on the circumference of the rotating column within the through hole. A groove is provided on the top inner wall of the through hole, and a cylindrical positioning head is slidably mounted within the groove along the vertical direction. The bottom surface of the cylindrical positioning head is provided with positioning anti-slip strips, and the cylindrical positioning head is positioned by engaging with the anti-slip patterns on the circumference of the rotating column through the positioning anti-slip strips. The cylindrical positioning head has an annular sliding cavity inside, and the annular sliding cavity is inclined as a whole. The annular sliding cavity is inclined along the vertical direction. A sliding ball is slidably mounted on a circular track. A sliding rod is fixedly connected to the top of the sliding ball. A rotating shaft is rotatably mounted on the top inner wall of the groove via a bearing. A turntable is fixedly connected to the bottom end of the rotating shaft, and the top end of the sliding rod is fixedly connected to the bottom edge of the turntable. A first worm gear is fixedly sleeved on the top end of the rotating shaft. A first worm gear is meshed on the first worm gear. A second motor and a rotating bracket are fixedly mounted on the top inner wall of the positioning box. The output shaft of the second motor is fixedly connected to the left end of the first worm gear, and the right end of the first worm gear is rotatably mounted on the rotating bracket.

[0008] Preferably, the annular sliding cavity has a bottom chamber at its inclined bottom and a top chamber at its inclined top. When the sliding ball moves to the position of the top chamber, it causes the cylindrical positioning head to move down to engage with and position the rotating column.

[0009] Preferably, vertical sliders are fixedly connected to both sides of the cylindrical positioning head, and vertical grooves are provided on both sides of the inner wall of the groove. The vertical sliders are slidably installed in the vertical grooves along the vertical direction. An annular through groove is provided on the top inner wall of the annular sliding cavity, and the sliding rod moves along the annular trajectory through the annular through groove.

[0010] Preferably, the clamping and moving mechanism includes a mounting frame fixedly installed on the inner wall of the bottom of the mounting cavity, and the mounting frame is U-shaped in general. A third motor is fixedly installed inside the mounting frame. The output shaft of the third motor is fixedly connected to a second worm gear. A second worm wheel meshes on the second worm gear. A screw is fixedly sleeved on the second worm wheel. The two ends of the screw respectively rotate through to the outside of the mounting frame and are threadedly connected to the moving column.

[0011] Preferably, the movable column is provided with a threaded groove, and the screw is threadedly connected to the threaded groove; the screw located outside the mounting bracket is provided with external threads, and the two external threads on the screw are arranged in opposite directions.

[0012] Preferably, a transversely arranged slider is fixedly connected to the movable column, and a transverse slide rail is provided on the top inner wall of the mounting cavity, with the transverse slider slidably mounted on the transverse slide rail in the horizontal direction.

[0013] Preferably, the processing table is equipped with a controller, which is electrically connected to the first motor, the second motor, and the third motor respectively.

[0014] The beneficial effects of this invention are:

[0015] 1. In this invention, by setting a clamping and moving mechanism, the two L-shaped brackets and the L-shaped chuck can move towards each other, thereby initially clamping the speaker mesh to be processed. At the same time, the buffer pad on the L-shaped chuck plays a buffering role to prevent the speaker mesh from deforming due to excessive clamping force.

[0016] 2. In this invention, the first motor drives the rotating column and the sprocket to rotate. When the sprocket rotates, it meshes with the tooth groove on the positioning column, thereby causing the positioning column to move down. The positioning column then drives the fixing head to move down and presses and fixes the speaker mesh, thus further clamping and fixing the speaker mesh.

[0017] 3. In this invention, by setting a positioning mechanism, the cylindrical positioning head can be moved downward, so that the positioning anti-slip strip at the bottom of the cylindrical positioning head can be positioned against the anti-slip pattern on the rotating column. In this way, the positioning and cooperation of the cylindrical positioning head with the rotating column prevents the rotating column, the gear, the positioning column and the fixing head from rotating loosely, thereby ensuring that the fixing head clamps and fixes the speaker mesh more firmly, ensuring the stability of the speaker mesh in subsequent electric planing processing, and thus ensuring the processing quality.

[0018] In summary, this invention not only uses two L-shaped chucks moving towards each other to initially clamp the speaker grille to be processed, but also uses a downward-moving fixed head to further clamp and fix the speaker grille. Simultaneously, the cylindrical positioning head in the positioning mechanism positions and engages with the rotating column to prevent loosening of the rotating column, gear, positioning column, and fixed head. This ensures a more secure clamping and fixation of the speaker grille by the fixed head, reducing the likelihood of displacement and guaranteeing the stability of the speaker grille during subsequent electric planing. Furthermore, it avoids the unreliable clamping and positioning issues caused by the simple structure of previous clamping devices, ensuring smooth subsequent electric planing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a speaker grille machining fixture with a positioning structure proposed in this invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram of part A in the middle;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section B;

[0023] Figure 5 This is a schematic diagram showing a partial detail of the present invention;

[0024] Figure 6 This is a cross-sectional structural schematic diagram of the cylindrical positioning head in this invention.

[0025] In the diagram: 1. Machining table; 101. Mounting cavity; 2. L-shaped bracket; 3. L-shaped chuck; 301. Buffer pad; 4. Positioning box; 5. Speaker mesh; 6. Mounting bracket; 7. Third motor; 8. Second worm gear; 9. Second worm wheel; 10. Screw; 1001. External thread; 11. Moving column; 1101. Threaded groove; 12. Transverse slider; 13. First motor; 14. Rotating column; 141. Anti-slip texture; 15. Circular gear; 16. Positioning column; 161. Gear groove; 17. Fixed head; 18. 19. Guide block; 20. Guide rail; 21. Controller; 22. Second motor; 23. First worm gear; 24. First worm wheel; 25. Rotating shaft; 26. Rotating bracket; 27. Rotating support; 28. Through hole; 29. ​​Bearing; 20. Groove; 21. Turntable; 22. Sliding rod; 23. Sliding ball; 34. Vertical slider; 35. Columnar positioning head; 36. Annular sliding cavity; 37. Bottom cavity; 38. Top cavity; 39. Annular through groove; 30. Positioning anti-slip strip. Detailed Implementation

[0026] The present invention will be further explained below with reference to specific embodiments.

[0027] Example

[0028] refer to Figure 1-6This embodiment proposes a planer fixture for processing speaker grilles with a positioning structure, including a processing table 1 for planing speaker grilles 5. L-shaped supports 2 are provided on the top of both sides of the processing table 1. L-shaped chucks 3 for clamping the speaker grilles 5 are fixedly connected to the ends of the two L-shaped supports 2 that are close to each other. A buffer pad 301 is provided on the inner side of the L-shaped chucks 3. A mounting cavity 101 is provided on the processing table 1. A clamping and moving mechanism is provided in the mounting cavity 101. A moving column 11 is movably mounted in the mounting cavity 101 through the clamping and moving mechanism, and the outer end of the moving column 11 is fixedly connected to the L-shaped supports 2. A positioning box 4 is fixedly connected to the top of the L-shaped chucks 3. A guide rail 19 is provided on the side wall of the positioning box 4, and a guide rail is slidably mounted on the guide rail 19. A positioning post 16 is fixedly connected to block 18 and guide block 18. The bottom end of positioning post 16 extends movably through to the bottom of L-shaped clamp 3 and is fixedly connected to a fixing head 17 for pressing and fixing the speaker mesh 5. A toothed groove 161 is provided on positioning post 16, and a spur gear 15 is meshed with positioning post 16 through toothed groove 161. A rotating post 14 is fixedly sleeved on spur gear 15. A rotating support 26 is also fixedly provided in positioning box 4 located to the left of positioning post 16. The left end of rotating post 14 rotates through to the left side of rotating support 26. A first motor 13 is fixedly installed on the inner wall of the left side of positioning box 4. The output shaft of the first motor 13 is fixedly connected to rotating post 14. A positioning mechanism for positioning rotating post 14 is also provided on rotating support 26.

[0029] In this embodiment, the positioning mechanism includes a through hole 261 on the rotating support 26, through which a rotating column 14 movably passes. Anti-slip textures 141 are evenly distributed on the circumference of the rotating column 14 within the through hole 261. A groove 263 is provided on the inner top wall of the through hole 261. A cylindrical positioning head 31 is slidably installed vertically within the groove 263. A positioning anti-slip strip 3105 is provided on the bottom surface of the cylindrical positioning head 31, and the cylindrical positioning head 31 is positioned by engaging with the anti-slip textures 241 on the circumference of the rotating column 14 through the positioning anti-slip strip 3105. The cylindrical positioning head 31 has an annular sliding cavity 3101 inside, and the annular sliding cavity 3101 is inclined as a whole. A sliding ball 29 is slidably installed along an inclined annular trajectory inside cavity 3101. A sliding rod 28 is fixedly connected to the top of the sliding ball 29. A rotating shaft 24 is rotatably installed on the top inner wall of groove 263 via bearing 262. A turntable 27 is fixedly connected to the bottom end of the rotating shaft 24, and the top end of the sliding rod 28 is fixedly connected to the bottom edge of the turntable 27. A first worm gear 23 is fixedly sleeved on the top end of the rotating shaft 24. A first worm 22 arranged laterally meshes on the first worm gear 23. A second motor 21 and a rotating bracket 25 are fixedly installed on the top inner wall of positioning box 4. The output shaft of the second motor 21 is fixedly connected to the left end of the first worm 22, and the right end of the first worm 22 is rotatably installed on the rotating bracket 25.

[0030] In this embodiment, the inclined bottom of the annular sliding cavity 3101 is provided with a bottom chamber 3102; the inclined top of the annular sliding cavity 3101 is provided with a top chamber 3103. When the sliding ball 29 moves to the position of the top chamber 3103, it causes the cylindrical positioning head 31 to move down to abut against and position the rotating column 14.

[0031] In this embodiment, vertical sliders 30 are fixedly connected to both sides of the cylindrical positioning head 31, and vertical grooves are provided on both sides of the inner wall of the groove 263. The vertical sliders 30 are slidably installed in the vertical grooves along the vertical direction. An annular through groove 3104 is provided on the top inner wall of the annular sliding cavity 3101, and the sliding rod 28 moves along the annular trajectory and passes through the annular through groove 3104.

[0032] In this embodiment, the clamping and moving mechanism includes a mounting frame 6 fixedly installed on the inner wall of the bottom of the mounting cavity 101. The mounting frame 6 has an overall U-shaped structure. A third motor 7 is fixedly installed inside the mounting frame 6. The output shaft of the third motor 7 is fixedly connected to a second worm gear 8. A second worm wheel 9 is meshed on the second worm gear 8. A screw 10 is fixedly sleeved on the second worm wheel 9. The two ends of the screw 10 respectively rotate through to the outside of the mounting frame 6 and are threadedly connected to the moving column 11.

[0033] In this embodiment, the movable column 11 is provided with a threaded groove 1101, and the screw 10 is threadedly connected to the threaded groove 1101; the screw 10 located outside the mounting bracket 6 is provided with external threads 1001 respectively, and the two external threads 1001 on the screw 10 are arranged in opposite directions.

[0034] The movable column 11 is fixedly connected to a horizontally arranged horizontal slider 12, and the top inner wall of the mounting cavity 101 is provided with a horizontal slide rail. The horizontal slider 12 is slidably installed on the horizontal slide rail in the horizontal direction. The processing table 1 is provided with a controller 20, which is electrically connected to the first motor 13, the second motor 21, and the third motor 7 respectively.

[0035] like Figure 1-6The above describes a planer fixture for machining horn mesh with a positioning structure. In use, the third motor 7 in the clamping and moving mechanism drives the second worm gear 8 to rotate. The second worm gear 8 meshes with the second worm wheel 9, driving the screw 10 to rotate. Since the two external threads 1001 on the screw 10 are arranged in opposite directions, the two moving columns 11 can move closer to each other via threaded grooves 1101 along the two external threads 1001 of the screw 10. When the two moving columns 11 move closer, they also drive the two L-shaped supports 2 and L-shaped chucks 3 to move towards each other, thus initially clamping the horn mesh 5 to be processed. Simultaneously, the buffer pad 301 on the L-shaped chuck 3 acts as a buffer to prevent deformation of the horn mesh 5 due to excessive clamping force. Subsequently, the first motor 13 drives the rotating column 14 and the sprocket 15 to rotate. When the sprocket 15 rotates, it meshes with the toothed groove 161 on the positioning column 16, causing the positioning column 16 to move downwards. The positioning column 16 then drives the fixed head 17 to move downwards. The speaker grille 5 is pressed and fixed, which further clamps and secures the speaker grille 5. Furthermore, the second motor 21 in the positioning mechanism drives the first worm gear 22 to rotate. When the first worm gear 22 rotates, it meshes with the first worm wheel 23, driving the rotating shaft 24 to rotate. The rotating shaft 24 then drives the turntable 27 to rotate. The rotation of the turntable 27 also drives the sliding ball 29 to rotate via the sliding rod 28. When the sliding ball 29 rotates from the bottom chamber 3102 to the top chamber 3103, it can further adjust the cylindrical shape... The positioning head 31 moves downward, allowing the positioning anti-slip strip 3105 at the bottom of the cylindrical positioning head 31 to engage with the anti-slip pattern 141 on the rotating column 14 for positioning. This positioning engagement of the cylindrical positioning head 31 with the rotating column 14 prevents the rotating column 14, the spur gear 15, the positioning column 16, and the fixing head 17 from rotating loosely. This ensures that the fixing head 17 clamps and fixes the speaker mesh 5 more firmly, ensuring the stability of the speaker mesh during subsequent electric planing and guaranteeing processing quality.

[0036] In summary, this invention not only allows for the initial clamping of the speaker mesh 5 to be processed by the two L-shaped chucks 3 moving towards each other, but also further clamps and fixes the speaker mesh 5 by moving the fixing head 17 downward. Simultaneously, the cylindrical positioning head 31 in the positioning mechanism positions and engages with the rotating column 14 to prevent loosening of the rotating column 14, the spur gear 15, the positioning column 16, and the fixing head 17. This ensures a more secure clamping and fixation of the speaker mesh 5 by the fixing head 17, preventing displacement and guaranteeing the stability of the speaker mesh during subsequent electric planing. It also avoids the unreliable clamping and positioning issues caused by the simple structure of previous clamping devices, ensuring smooth subsequent electric planing.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A horn mesh machining fixture with a positioning structure, characterized in that, The equipment includes a processing table (1) for planing the speaker mesh (5). Both sides of the processing table (1) are provided with L-shaped brackets (2). The two L-shaped brackets (2) are fixedly connected to each other at one end, and L-shaped chucks (3) are used to clamp the speaker mesh (5). The inner side of the L-shaped chucks (3) is provided with a buffer pad (301). The processing table (1) is provided with a mounting cavity (101). The mounting cavity (101) is provided with a clamping and moving mechanism. A moving column (11) is movably installed in the mounting cavity (101) through the clamping and moving mechanism. The outer end of the moving column (11) is fixedly connected to the L-shaped bracket (2). The top of the L-shaped clamp (3) is fixedly connected to a positioning box (4). A guide rail (19) is provided on the side wall of the positioning box (4). A guide block (18) is slidably installed on the guide rail (19). A positioning post (16) is fixedly connected to the guide block (18). The bottom end of the positioning post (16) extends movably through to the bottom of the L-shaped clamp (3) and is fixedly connected to a fixing head (17) for pressing and fixing the speaker grille (5). A toothed groove (161) is provided on the positioning post (16). The positioning post (16) meshes with the toothed groove (161). The device has a spur gear (15), on which a rotating column (14) is fixedly sleeved. A rotating support (26) is also fixedly installed in the positioning box (4) located to the left of the positioning column (16). The left end of the rotating column (14) rotates through to the left side of the rotating support (26). A first motor (13) is fixedly installed on the inner wall of the left side of the positioning box (4). The output shaft of the first motor (13) is fixedly connected to the rotating column (14). A positioning mechanism for positioning the rotating column (14) is also provided on the rotating support (26).

2. The electric planer jig with a positioning structure for processing horn mesh according to claim 1, characterized in that, The positioning mechanism includes a through hole (261) on a rotating support (26), a rotating column (14) movably passing through the through hole (261), and anti-slip textures (141) evenly distributed on the circumference of the rotating column (14) located in the through hole (261). A groove (263) is provided on the inner wall of the top of the through hole (261), and a cylindrical positioning head (31) is slidably installed in the groove (263) along the vertical direction. The bottom surface of the cylindrical positioning head (31) is provided with a positioning anti-slip strip (3105), and the cylindrical positioning head (31) is positioned by the anti-slip strip (3105) engaging with the anti-slip textures (241) on the circumference of the rotating column (14). The cylindrical positioning head (31) has an annular sliding cavity (3101) inside, and the annular sliding cavity (3101) is inclined as a whole. 01) A sliding ball (29) is slidably installed along the inclined annular trajectory. A sliding rod (28) is fixedly connected to the top of the sliding ball (29). A rotating shaft (24) is rotatably installed on the top inner wall of the groove (263) via a bearing (262). A turntable (27) is fixedly connected to the bottom end of the rotating shaft (24), and the top end of the sliding rod (28) is fixedly connected to the bottom edge of the turntable (27). A first worm wheel (23) is fixedly sleeved on the top end of the rotating shaft (24). A first worm (22) is meshed on the first worm wheel (23). A second motor (21) and a rotating bracket (25) are fixedly installed on the top inner wall of the positioning box (4). The output shaft of the second motor (21) is fixedly connected to the left end of the first worm (22), and the right end of the first worm (22) is rotatably installed on the rotating bracket (25).

3. The electric planer jig with a positioning structure for processing horn mesh according to claim 2, characterized in that, The annular sliding cavity (3101) has a bottom chamber (3102) at its inclined bottom and a top chamber (3103) at its inclined top. When the sliding ball (29) moves to the position of the top chamber (3103), it causes the cylindrical positioning head (31) to move down to abut against the rotating column (14) for positioning and engagement.

4. The electric planer jig with a positioning structure for processing horn mesh according to claim 2, characterized in that, Vertical sliders (30) are fixedly connected to both sides of the cylindrical positioning head (31). Vertical grooves are provided on both sides of the inner wall of the groove (263). The vertical sliders (30) are slidably installed in the vertical grooves along the vertical direction. An annular through groove (3104) is provided on the top inner wall of the annular sliding cavity (3101). The sliding rod (28) moves along the annular trajectory and passes through the annular through groove (3104).

5. A horn mesh electric planer machining fixture with a positioning structure according to claim 1, characterized in that, The clamping and moving mechanism includes a mounting frame (6) fixedly installed on the inner wall of the bottom of the mounting cavity (101), and the mounting frame (6) is U-shaped. A third motor (7) is fixedly installed inside the mounting frame (6). The output shaft of the third motor (7) is fixedly connected to a second worm (8). A second worm wheel (9) meshes on the second worm (8). A screw (10) is fixedly sleeved on the second worm wheel (9). The two ends of the screw (10) rotate through to the outside of the mounting frame (6) and are threadedly connected to the moving column (11).

6. A horn mesh electric planer machining fixture with a positioning structure according to claim 5, characterized in that, The movable column (11) is provided with a threaded groove (1101), and the screw (10) is threadedly connected to the threaded groove (1101); the screw (10) located outside the mounting bracket (6) is provided with external threads (1001), and the two external threads (1001) on the screw (10) are set in opposite directions.

7. A horn mesh electric planer machining fixture with a positioning structure according to claim 5, characterized in that, A transverse slider (12) is fixedly connected to the movable column (11), and a transverse slide rail is provided on the top inner wall of the mounting cavity (101). The transverse slider (12) is slidably mounted on the transverse slide rail in the horizontal direction.

8. A horn mesh electric planer machining fixture with a positioning structure according to claim 1, characterized in that, The processing table (1) is equipped with a controller (20), which is electrically connected to the first motor (13), the second motor (21), and the third motor (7).

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