Bending machine and bending method for sound cover machining

Abstract

The invention relates to the technical field of bending machines, in particular to a bending machine for sound cover machining and a bending method.The bending machine comprises an adjusting workbench, a positioning column and a buffer bending part, and the buffer bending part comprises an adjusting ring, a driving rod, a bending block and a buffer rod; the positions of the adjusting workbench and the bending block are adjusted based on the size of the metal plate, the metal plate is placed on the adjusting workbench, the positioning column is started, the positioning column extends and abuts against the metal plate, at the moment, a worker starts the driving rod through the controller, the driving rod acts, the output end of the driving rod extends to push the bending block to descend and bend the metal plate, and finally the sound box cover is formed. According to the bending machine, the positioning columns are controlled to reset through the controller, the sound cover is taken down, machining and bending of the sound cover are completed, the bending machine is controlled through a preset program, a metal plate can be semi-automatically bent, the sound cover of the same model can be bent, bending operation is rapid and convenient, and product quality stability is higher.

Description

Technical Field

[0001] This invention relates to the field of bending machine technology, and more particularly to a bending machine and bending method for processing speaker covers. Background Technology

[0002] A loudspeaker, also known as a "horn," is a commonly used electroacoustic transducer. It is the weakest component in audio equipment, yet it is crucial for sound quality. Currently, loudspeaker equipment is widely used in various electronic products and is favored by users. Speaker grilles are typically used on the exterior of speaker enclosures and horns, serving to filter dust, decorate, and protect the internal structure of the speaker. Metal grille materials are mostly steel, aluminum, magnesium, and other metals, offering advantages such as sturdiness, aesthetics, corrosion resistance, and moisture resistance. When manufacturing round speaker grilles, the grille plate needs to be pressed into a circular shape, and an edge needs to be left on the outer side of the grille for installation, followed by finishing.

[0003] In existing technologies, bending the metal clips of speaker covers is sometimes done manually. This method is slow, difficult, and requires highly skilled operators, resulting in a high product defect rate and low work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a bending machine and bending method for processing speaker covers, aiming to solve the problems of high difficulty and high defect rate in traditional speaker cover bending by workers.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a bending machine for processing speaker covers, comprising an adjusting table, a positioning post, and a buffer bending section. The positioning post is mounted on the top of the adjusting table, and the buffer bending section includes an adjusting ring, a drive rod, a bending block, and a buffer rod. The adjusting ring is mounted on one side of the positioning post, the drive rod is fixedly connected to the adjusting ring and located at the bottom of the adjusting ring, the bending block is fixedly connected to the drive rod and located on the side of the drive rod away from the adjusting ring, and the buffer rod is fixedly connected to the bending block and fixedly connected to the adjusting ring, and located between the adjusting ring and the bending block.

[0006] The bending block includes a bending block body, a spring, and a pressure block. The bending block body is fixedly connected to the drive rod and is located on the side of the drive rod away from the adjusting ring. The pressure block is slidably connected to the bending block body and is located on one side of the bending block body. The spring is fixedly connected to the bending block body and to the pressure block, and is located between the pressure block and the bending block.

[0007] The adjusting ring includes a rotating disk, a mounting ring, a second telescopic rod, and a sliding block. The mounting ring is fixedly connected to the positioning post and is located outside the positioning post. The rotating disk is assembled on one side of the mounting ring. The second telescopic rod is fixedly connected to the rotating disk and is located on one side of the rotating disk. The sliding block is fixedly connected to the second telescopic rod and slidably connected to the rotating disk, and is located on one side of the rotating disk.

[0008] The adjusting platform includes a platform body, a first telescopic rod, and an edge block. The platform body is fixedly connected to the positioning column and is located at the bottom of the positioning column. The first telescopic rod is fixedly connected to the platform body and is located around the platform body. The edge block is fixedly connected to the first telescopic rod and is located on the side of the first telescopic rod away from the platform body.

[0009] The adjustable workbench also includes casters and brake blocks. The casters are mounted on the bottom of the workbench body, and the brake blocks are mounted on the side of the workbench body near the casters.

[0010] The buffer rod includes a damping rod and a buffer spring. The damping rod is fixedly connected to the sliding block and the bending block body, and is located between the bending block body and the sliding block. The buffer spring is sleeved on the outside of the damping rod.

[0011] The positioning column includes a bracket, a telescopic cylinder, and a pressure plate. The bracket is fixedly connected to the workbench body and is located on the top of the workbench body. The telescopic cylinder is fixedly connected to the bracket and is located on one side of the bracket. The pressure plate is fixedly connected to the telescopic cylinder and is located on the side of the telescopic cylinder away from the bracket.

[0012] In a second aspect, the present invention also provides a bending method for processing speaker covers using a bending machine, applied to the bending machine for processing speaker covers as described in the first aspect above, comprising the following steps;

[0013] Adjust the cross-sectional area of ​​the workbench and the position of the bending blocks based on the size of the metal sheet.

[0014] When the metal sheet is placed on the adjustment table, the positioning post holds the metal sheet in place.

[0015] The output end of the drive rod extends to push the bending block down and bend the metal sheet to form a speaker cover.

[0016] The adjustment of the cross-sectional area of ​​the workbench and the position of the bending blocks based on the size of the metal sheet includes:

[0017] The controller controls the extension and retraction of the first telescopic rod, which drives the edge block to move and changes the distance between it and the worktable body.

[0018] The second telescopic rod is controlled to extend and retract, pushing the sliding block to slide on the mounting ring to adjust the position of the drive rod and the bending block body, so that the bending block body and the edge block are parallel at a distance equal to the thickness of the metal sheet.

[0019] The drive rod output end extends to push the bending block down and bend the metal sheet to form a speaker cover, including:

[0020] The output end of the drive rod extends to push the bending block body down, causing the pressure block to press against the metal plate;

[0021] The drive rod continues to lower the bending block body, causing the metal sheet to bend from the edge of the edge block, performing one bend;

[0022] The drive rod retracts and lifts the bending block body, the rotating disk rotates to adjust the position of the bending block body, and then the bending block body is lowered again for a second bending to obtain a bent workpiece.

[0023] The positioning pin retracts and resets, removing the positioning of the bent workpiece to obtain the speaker cover.

[0024] This invention discloses a bending machine for processing speaker covers. Based on the size of the metal sheet, the adjustment table and the bending block are positioned. The metal sheet is placed on the adjustment table, and the positioning column is activated, extending and pressing against the metal sheet. At this point, the worker activates the drive rod (an electric telescopic rod, a commonly used technology in the market) via a controller. The drive rod extends its output end, pushing the bending block down and bending the metal sheet to form a speaker cover. Finally, the positioning column is reset by the controller, and the speaker cover is removed, thus completing the speaker cover bending process. The buffer... The lever is designed to buffer the force of the bending block, preventing excessive force from causing deformation or breakage at the bending point of the metal sheet. This bending machine, controlled by a preset program, can semi-automatically bend metal sheets and can bend speaker covers of the same model. The bending operation is fast and convenient, resulting in stronger product quality stability. Furthermore, the adjusting ring can be adjusted to change the position of the bending block according to different sizes of metal sheets, thus enabling bending of metal sheets of varying sizes. This solves the problems of high difficulty and high defect rate associated with traditional manual bending of speaker covers. Attached Figure Description

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a structural schematic diagram of a bending machine for processing speaker covers provided by the present invention.

[0027] Figure 2 This is a schematic diagram of another aspect of a bending machine for processing speaker covers provided by the present invention.

[0028] Figure 3 This is a flowchart of a bending method using a bending machine for processing speaker covers, provided by the present invention.

[0029] Figure 4 This is a flowchart illustrating the specific method for adjusting the cross-sectional area of ​​the workbench and the position of the bending blocks based on the size of the metal sheet.

[0030] Figure 5 The flowchart describes the specific method by which the start-up drive rod extends to push the bending block down and bend the metal sheet to form a speaker cover.

[0031] In the diagram: 1-Adjusting platform, 2-Positioning column, 3-Buffer bending part, 11-Workbench body, 12-First telescopic rod, 13-Edge block, 14-Wheel caster, 15-Brake block, 21-Bracket, 22-Telescopic cylinder, 23-Pressure plate, 31-Adjusting ring, 32-Drive rod, 33-Bending block, 34-Buffer rod, 311-Mounting ring, 312-Second telescopic rod, 313-Sliding block, 314-Rotating disc, 331-Bending block body, 332-Spring, 333-Pressure block, 341-Damping rod, 342-Buffer spring. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] Please see Figures 1 to 2This invention provides a bending machine for processing speaker covers, comprising an adjusting table 1, a positioning post 2, and a buffer bending part 3. The positioning post 2 is mounted on the top of the adjusting table 1. The buffer bending part 3 includes an adjusting ring 31, a drive rod 32, a bending block 33, and a buffer rod 34. The adjusting ring 31 is mounted on one side of the positioning post 2. The drive rod 32 is fixedly connected to the adjusting ring 31 and located at the bottom of the adjusting ring 31. The bending block 33 is fixedly connected to the drive rod 32 and located on the side of the drive rod 32 away from the adjusting ring 31. The buffer rod 34 is fixedly connected to the bending block 33 and fixedly connected to the adjusting ring 31, and located between the adjusting ring 31 and the bending block 33.

[0034] In this embodiment of the invention, the positions of the adjusting table 1 and the bending block 33 are adjusted based on the size of the metal sheet. The metal sheet is placed on the adjusting table 1, and the positioning column 2 is activated. The positioning column 2 extends and abuts against the metal sheet. At this time, the worker activates the drive rod 32 (an electric telescopic rod, a commonly used technology in the market) through the controller. The output end of the drive rod 32 extends to push the bending block 33 down and bend the metal sheet to form a speaker cover. Finally, the positioning column 2 is reset by the controller, and the speaker cover is removed, thus completing the bending process of the speaker cover. The buffer rod 34... The setting is used to buffer the force of the bending block 33, so as to avoid excessive force when the bending block 33 bends the metal sheet, causing deformation or breakage at the bending point. The bending machine is controlled by a preset program and can semi-automatically bend metal sheets. It can bend the same model of speaker cover. The bending operation is fast and convenient, and the product quality stability is stronger. At the same time, the adjustment ring 31 can be adjusted according to the size of the metal sheet to change the position of the bending block 33, thereby bending metal sheets of different sizes, solving the problems of high work difficulty and high defect rate of traditional manual bending of speaker covers.

[0035] Furthermore, the bending block 33 includes a bending block body 331, a spring 332, and a pressure block 333. The bending block body 331 is fixedly connected to the drive rod 32 and is located on the side of the drive rod 32 away from the adjusting ring 31. The pressure block 333 is slidably connected to the bending block body 331 and is located on one side of the bending block body 331. The spring 332 is fixedly connected to the bending block body 331 and fixedly connected to the pressure block 333, and is located between the pressure block 333 and the bending block 33.

[0036] In this embodiment of the invention, the bending block body 331 is lowered by the driving rod 32 to bend the metal plate fixed by the positioning post 2. Specifically, the driving rod 32 lowers the bending block body 331 so that the bending block body 331 and the pressure block 333 contact the metal plate. The driving rod 32 continues to push the bending block body 331 to bend the metal plate. During the bending process of the metal plate, the pressure block 333 is firmly pressed against the side of the metal plate near the bending point by the reaction force of the spring 332, which prevents the bending point of the metal plate from warping and deforming when the metal plate is bent, thus ensuring the bending efficiency of the speaker cover.

[0037] Furthermore, the adjusting ring 31 includes a rotating disk 314, a mounting ring 311, a second telescopic rod 312, and a sliding block 313. The mounting ring 311 is fixedly connected to the positioning post 2 and is located outside the positioning post 2. The rotating disk 314 is assembled on one side of the mounting ring 311. The second telescopic rod 312 is fixedly connected to the rotating disk 314 and is located on one side of the rotating disk 314. The sliding block 313 is fixedly connected to the second telescopic rod 312 and slidably connected to the rotating disk 314, and is located on one side of the rotating disk 314.

[0038] In this embodiment of the invention, the mounting ring 311 provides installation conditions for the second telescopic rod 312 and the sliding block 313. The second telescopic rod 312 is controlled by a preset program to drive the sliding block 313 to slide on the mounting ring 311, thereby adjusting the position of the driving rod 32 and the bending block body 331 below it. After the driving rod 32 drives the bending block body 331 to bend the metal sheet once, the driving rod 32 retracts and lifts the bending block body 331. At this time, the rotating disk 314 drives the bending block body 331 to rotate. Then, the driving rod 32 drives the bending block body 331 to press down and bend the metal sheet again for a second bend.

[0039] Furthermore, the adjusting platform 1 includes a platform body 11, a first telescopic rod 12, and an edge block 13. The platform body 11 is fixedly connected to the positioning post 2 and is located at the bottom of the positioning post 2. The first telescopic rod 12 is fixedly connected to the platform body 11 and is located around the platform body 11. The edge block 13 is fixedly connected to the first telescopic rod 12 and is located on the side of the first telescopic rod 12 away from the platform body 11. The adjusting platform 1 also includes casters 14 and brake blocks 15. The casters 14 are mounted on the bottom of the platform body 11, and the brake blocks 15 are mounted on the side of the platform body 11 near the casters 14.

[0040] In this embodiment of the invention, the workbench body 11 provides an installation location for the other mechanisms and is used to place the metal sheet to be bent. When bending the metal sheet, the circle of the metal sheet is aligned with the center of the workbench body 11. The first telescopic rod 12 and the second telescopic rod 312 are both controlled by a preset program, and their telescopic ranges are consistent, so that the distance between the bending block body 331 and the edge block 13 is equal to the thickness of the metal sheet. This allows for bending of metal sheets of different sizes, making it more practical. The universal wheels 14 facilitate the movement and transfer of the workbench body 11 by workers, and the brake block 15 is used to brake the universal wheels 14.

[0041] Furthermore, the buffer rod 34 includes a damping rod 341 and a buffer spring 342. The damping rod 341 is fixedly connected to the sliding block 313 and to the bent block body 331, and is located between the bent block body 331 and the sliding block 313. The buffer spring 342 is sleeved on the outside of the damping rod 341.

[0042] In this embodiment of the invention, when the output end of the drive rod 32 extends to push the bending block body 331 down, both the damping rod 341 and the buffer spring 342 are stretched. The damping rod 341 buffers the force of the bending block body 331 by stretching the buffer medium therein, so as to avoid the bending block 33 bending the metal plate with excessive force, which would cause the metal plate to deform or break at the bending point. The buffer spring 342 further enhances the buffering effect of the damping rod 341.

[0043] Furthermore, the positioning column 2 includes a bracket 21, a telescopic cylinder 22, and a pressure plate 23. The bracket 21 is fixedly connected to the workbench body 11 and is located on the top of the workbench body 11. The telescopic cylinder 22 is fixedly connected to the bracket 21 and is located on one side of the bracket 21. The pressure plate 23 is fixedly connected to the telescopic cylinder 22 and is located on the side of the telescopic cylinder 22 away from the bracket 21.

[0044] In this embodiment of the invention, the bracket 21 provides installation and support for the telescopic cylinder 22 and the pressure plate 23. The output end of the telescopic cylinder 22 extends and lowers the pressure plate 23, so that the pressure plate 23 abuts against the metal plate placed on the workbench body 11, thereby achieving the positioning and fixing of the metal plate.

[0045] Please see Figures 3-5 Secondly, the present invention also provides a bending method for processing speaker covers using a bending machine, applied to the bending machine for processing speaker covers as described in the first aspect above, comprising the following steps;

[0046] S1 adjusts the position of the adjustment table 1 and bending block 33 based on the size of the metal sheet;

[0047] Specific methods:

[0048] S11 controls the extension and retraction of the first telescopic rod 12 through the controller, drives the edge block 13 to move, and changes the distance between it and the workbench body 11.

[0049] In this embodiment of the invention, the first telescopic rod 12 is controlled by a preset control program in the controller to drive the edge block 13 to move, thereby changing the distance between the edge block 13 and the workbench body 11, so that the distance between the bending block body 331 and the edge block 13 when they are parallel is the thickness of the metal sheet, thereby enabling bending processing of metal sheets of different sizes.

[0050] S12 controls the second telescopic rod 312 to extend and retract, pushing the sliding block 313 to slide on the mounting ring 311, so as to adjust the position of the drive rod 32 and the bending block body 331, so that the bending block body 331 is parallel to the edge block 13 and the time distance is the thickness of the metal plate.

[0051] In this embodiment of the invention, the second telescopic rod 312 is controlled by a preset program to drive the sliding block 313 to slide on the mounting ring 311, thereby adjusting the position of the driving rod 32 and the bent block body 331 below it, so that the bent block body 331 is always parallel to the edge block 13 with a distance equal to the thickness of the metal plate. S2 When the metal plate is placed on the adjusting table 1, the positioning post 2 holds the metal plate against it.

[0052] In this embodiment of the invention, the output end of the telescopic cylinder 22 extends and the pressure plate 23 is lowered, so that the pressure plate 23 abuts against the metal plate placed on the workbench body 11, thereby achieving the positioning and fixing of the metal plate.

[0053] The output end of the S3 drive rod 32 extends to push the bending block 33 down and bend the metal sheet to form a speaker cover.

[0054] Specific methods:

[0055] The output end of the drive rod 32 of S31 extends to push the bent block body 331 down, and causes the pressure block 333 to abut against the metal plate.

[0056] In this embodiment of the invention, the drive rod 32 lowers the bending block body 331 so that the bending block body 331 and the pressure block 333 come into contact with the metal plate.

[0057] S32 drive rod 32 continuously lowers the bending block body 331, causing the metal plate to bend from the edge position of edge block 13 and perform a bend.

[0058] In this embodiment of the invention, the drive rod 32 continues to push the bending block body 331 to bend the metal plate, performing one bend. During this process, the pressure block 333 is firmly pressed against the side of the metal plate near the bend by the reaction force of the spring 332, preventing the metal plate from warping and deforming at the bend when it is bent, thus ensuring the bending efficiency of the speaker cover.

[0059] S33 drive rod 32 retracts and lifts the bending block body 331, the rotating disk 314 rotates to adjust the position of the bending block body 331, and then lowers the bending block body 331 again for a second bending to obtain a bent workpiece.

[0060] In this embodiment of the invention, after the driving rod 32 drives the bending block body 331 to bend the metal sheet once, the driving rod 32 retracts and lifts the bending block body 331. At this time, the rotating disk 314 drives the bending block body 331 to rotate. Then, the driving rod 32 drives the bending block body 331 to press down and bend the metal sheet again for a second bend, thus obtaining a bent workpiece.

[0061] S34 positioning post 2 retracts and resets, removing the positioning of the bent workpiece, and the bent workpiece is removed to obtain the speaker cover.

[0062] The above description discloses only a preferred embodiment of the bending machine and bending method for processing speaker covers according to the present invention. Of course, it should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that all or part of the process of implementing the above embodiments and equivalent changes made in accordance with the claims of the present invention still fall within the scope of the invention.

Claims

1. A bending machine for processing speaker covers, characterized in that... ； It includes an adjustment platform, a positioning column, and a buffer bending section. The positioning column is assembled on the top of the adjustment platform, and the buffer bending section includes an adjustment ring, a drive rod, a bending block, and a buffer rod. The adjusting ring is assembled on one side of the positioning post. The driving rod is fixedly connected to the adjusting ring and located at the bottom of the adjusting ring. The bending block is fixedly connected to the driving rod and located on the side of the driving rod away from the adjusting ring. The buffer rod is fixedly connected to the bending block and to the adjusting ring, and is located between the adjusting ring and the bending block.

2. The bending machine for processing speaker covers as described in claim 1, characterized in that; The bending block includes a bending block body, a spring, and a pressure block. The bending block body is fixedly connected to the drive rod and is located on the side of the drive rod away from the adjusting ring. The pressure block is slidably connected to the bending block body and is located on one side of the bending block body. The spring is fixedly connected to the bending block body and to the pressure block, and is located between the pressure block and the bending block.

3. The bending machine for processing speaker covers as described in claim 2, characterized in that... ； The adjusting ring includes a rotating disk, a mounting ring, a second telescopic rod, and a sliding block. The mounting ring is fixedly connected to the positioning post and is located outside the positioning post. The rotating disk is assembled on one side of the mounting ring. The second telescopic rod is fixedly connected to the rotating disk and is located on one side of the rotating disk. The sliding block is fixedly connected to the second telescopic rod and slidably connected to the rotating disk, and is located on one side of the rotating disk.

4. The bending machine for processing speaker covers as described in claim 1, characterized in that... ； The adjusting platform includes a platform body, a first telescopic rod, and an edge block. The platform body is fixedly connected to the positioning post and is located at the bottom of the positioning post. The first telescopic rod is fixedly connected to the platform body and is located around the platform body. The edge block is fixedly connected to the first telescopic rod and is located on the side of the first telescopic rod away from the platform body.

5. The bending machine for processing speaker covers as described in claim 4, characterized in that... ； The adjustable workbench also includes casters and brake blocks. The casters are mounted on the bottom of the workbench body, and the brake blocks are mounted on the side of the workbench body near the casters.

6. The bending machine for processing speaker covers as described in claim 3, characterized in that... ； The buffer rod includes a damping rod and a buffer spring. The damping rod is fixedly connected to the sliding block and the bending block body, and is located between the bending block body and the sliding block. The buffer spring is sleeved on the outside of the damping rod.

7. The bending machine for processing speaker covers as described in claim 4, characterized in that... ； The positioning column includes a bracket, a telescopic cylinder, and a pressure plate. The bracket is fixedly connected to the workbench body and is located on the top of the workbench body. The telescopic cylinder is fixedly connected to the bracket and is located on one side of the bracket. The pressure plate is fixedly connected to the telescopic cylinder and is located on the side of the telescopic cylinder away from the bracket.

8. A bending method for processing speaker covers using a bending machine, applied to the bending machine for processing speaker covers as described in any one of claims 1-7, characterized in that, Includes the following steps; Adjust the cross-sectional area of ​​the workbench and the position of the bending blocks based on the size of the metal sheet. When the metal sheet is placed on the adjustment table, the positioning post holds the metal sheet in place. The output end of the drive rod extends to push the bending block down and bend the metal sheet to form a speaker cover.

9. A bending method for processing speaker covers using a bending machine as described in claim 8, characterized in that, The adjustment of the cross-sectional area of ​​the workbench and the position of the bending blocks based on the size of the metal sheet includes: The controller controls the extension and retraction of the first telescopic rod, which drives the edge block to move and changes the distance between it and the worktable body. The second telescopic rod is controlled to extend and retract, pushing the sliding block to slide on the mounting ring to adjust the position of the drive rod and the bending block body, so that the bending block body and the edge block are parallel at a distance equal to the thickness of the metal sheet.

10. A bending method for processing speaker covers using a bending machine as described in claim 8, characterized in that, The output end of the drive rod extends to push the bending block down and bend the metal sheet to form a speaker cover, including: The output end of the drive rod extends to push the bending block body down, causing the pressure block to press against the metal plate; The drive rod continues to lower the bending block body, causing the metal sheet to bend from the edge of the edge block, performing one bend; The drive rod retracts and lifts the bending block body, the rotating disk rotates to adjust the position of the bending block body, and then the bending block body is lowered again for a second bending to obtain a bent workpiece. The positioning pin retracts and resets, removing the positioning of the bent workpiece to obtain the speaker cover.

Images