Shell processing fixture

Abstract

The present invention discloses a shell processing fixture, comprising: a bracket; a support platform, arranged on the bracket, the support platform having three support positions, each support position capable of supporting a shell, the shell being an L-shaped shell, the L-shaped shell having an inner wall, a first outer wall, and a second outer wall, the first outer wall being opposite to the inner wall, and the second outer wall being adjacent to the first outer wall, the three support positions including a first support position, a second support position, and a third support position, the first support position being capable of supporting the inner wall, the second support position being capable of supporting the first outer wall, and the third support position being capable of supporting the second outer wall, so that a CNC machine tool can process different side walls of the three shells on the support platform; a limiting device, arranged on the support platform, capable of limiting the position of the shell located on the support platform; and a clamping device, arranged on the bracket, capable of clamping and fixing the shell located on the support platform. The shell processing fixture can reduce the processing error of the shell and improve the processing accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of tooling fixtures, and in particular to a shell processing fixture. Background Art

[0002] A speaker is a device that converts audio signals into sound. Generally speaking, it refers to a speaker cabinet or subwoofer enclosure with a built-in power amplifier that amplifies the audio signal before reproducing it, making the sound louder. The main purpose of a speaker cabinet is to prevent sound waves from the front and back of the speaker diaphragm from looping back, resulting in only the small high- and mid-frequency sounds being transmitted, while other sound signals are offset.

[0003] In the related art, the box is generally made of wood, and a metal shell needs to be added to the edge of the wooden box to protect it. The shell generally has a curvature, and different surfaces and positions of the shell need to be processed during processing, resulting in multiple processing steps. When processing the shell with a CNC machine tool, the shell needs to be positioned and fixed with a fixture. After completing the processing of one surface of the shell, the fixture needs to be changed or the control parameters of the CNC machine tool need to be readjusted to process other surfaces of the shell. However, after changing the fixture, the shell needs to be repositioned and fixed again, and processing errors easily accumulate, resulting in inaccurate processing. In addition, adjusting the control parameters of the CNC machine tool multiple times is cumbersome. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a housing processing fixture that can reduce the processing error of the housing, improve the processing efficiency and accuracy, and has a simple structure.

[0005] A housing processing fixture according to an embodiment of the first aspect of the present invention includes:

[0006] Bracket;

[0007] A support platform is provided on the bracket, the support platform is provided with three support positions, each of the support positions can support a shell, the shell is an L-shaped shell, the L-shaped shell has an inner wall, a first outer wall and a second outer wall, the first outer wall is opposite to the inner wall, and the second outer wall is adjacent to the first outer wall, the three support positions include a first support position, a second support position and a third support position, the first support position can support the inner wall, the second support position can support the first outer wall, and the third support position can support the second outer wall, so that the CNC machine tool can process different side walls of the three shells on the support platform;

[0008] A limiting device is provided on the support platform, and the limiting device is capable of limiting the position of the housing located on the support platform;

[0009] A pressing device is provided on the bracket, and the pressing device can press and fix the shell located on the support platform.

[0010] The shell processing fixture according to the embodiment of the present invention has at least the following beneficial effects: the shell processing fixture is provided with three support positions, each support position can fix a shell, and a limiting device and a clamping device are provided on the shell processing fixture. The limiting device can position the shell, and the clamping device can fix the shell. Since the exposed side walls of the shell on each support position are different, the CNC machine tool can complete multiple processing steps on the same shell processing fixture without frequently changing the fixture, reducing the number of times the control parameters of the CNC machine tool are adjusted, simplifying the operation steps, and improving production efficiency.

[0011] According to some embodiments of the present invention, the inner wall has a first surface and a second surface, the first supporting position is a bump, the bump abuts the first surface and the second surface, and exposes the first outer wall and the second outer wall.

[0012] According to some embodiments of the present invention, the second supporting position is a first groove, the first outer wall abuts the bottom of the first groove, and the second outer wall abuts the side wall of the first groove, so that the inner wall is exposed and the first surface is in a vertical direction.

[0013] According to some embodiments of the present invention, the third supporting position is a second groove, the second outer wall abuts the bottom of the second groove, and the first outer wall abuts the side wall of the second groove, so that the inner wall is exposed and the second surface is in a vertical direction.

[0014] According to some embodiments of the present invention, the limiting device is provided with a first limiting assembly, the first limiting assembly includes two first limiting blocks, the two first limiting blocks are arranged at opposite ends of the support platform, the first limiting blocks at least partially protrude from the second support position and the third support position, and the first limiting assembly can simultaneously limit the shell at the second support position and the third support position.

[0015] According to some embodiments of the present invention, the limiting device is further provided with a second limiting assembly, the second limiting assembly includes two second limiting blocks, the two second limiting blocks are arranged at opposite ends of the support platform and are located close to the first support position, and the second limiting assembly can limit the shell on the first support position.

[0016] According to some embodiments of the present invention, the pressing device includes a first cylinder assembly and a second cylinder assembly, the first cylinder assembly is located near the first support position and the second support position, and is capable of pressing the shell on the first support position and the second support position, and the second cylinder assembly is located near the third support position, and is capable of pressing the shell on the third support position.

[0017] According to some embodiments of the present invention, the first cylinder assembly includes a first cylinder and a first pressure block, the first pressure block is arranged at the end of the first guide rod of the first cylinder, the first cylinder can drive the first pressure block to move in a vertical direction, and the first pressure block can cooperate with the support platform to press the shell.

[0018] According to some embodiments of the present invention, the second cylinder assembly includes a second cylinder and a second pressure block, and the second pressure block is rotatably connected to the end of the second guide rod of the second cylinder. The second pressure block can rotate under the action of the second cylinder and cooperate with the support platform to press the shell.

[0019] According to some embodiments of the present invention, the second cylinder assembly is further provided with a third pressing block and a connecting block, the third pressing block and the second pressing block are connected via the connecting block, and the third pressing block can follow the movement of the second pressing block and press the housing.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 A schematic diagram of a housing processing fixture provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the shell processing fixture from another perspective;

[0024] Figure 3 This is a side view of the shell processing fixture;

[0025] Figure 4 is a schematic diagram of the shell;

[0026] Figure 5 is a schematic diagram of the housing from another perspective;

[0027] Figure 6 This is the front view of the shell processing fixture.

[0028] Reference numerals:

[0029] Bracket 100, base plate 110, support plate 120, switch 130, mounting plate 140, support platform 200, first support position 210, second support position 220, third support position 230, shell 300, inner wall 310, first surface 311, second surface 312, first outer wall 320, second outer wall 330, limiting device 400, first limiting block 410, second limiting block 420, pressing device 500, first cylinder assembly 510, first cylinder 511, first pressure block 512, second cylinder assembly 520, second cylinder 521, second pressure block 522, fixing part 5221, rotating part 5222, third pressure block 523, connecting block 524. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] A speaker is a device that converts audio signals into sound. Generally speaking, it refers to a speaker cabinet or subwoofer enclosure with a built-in power amplifier that amplifies the audio signal before reproducing it, making the sound louder. The main purpose of a speaker cabinet is to prevent sound waves from the front and back of the speaker diaphragm from looping back, resulting in only the small high- and mid-frequency sounds being transmitted, while other sound signals are offset.

[0035] In the related art, the box is generally made of wood, and a metal shell needs to be added to the edge of the wooden box to protect it. The shell is generally curved, and different surfaces and positions of the shell need to be processed during processing, resulting in multiple processing steps. When processing the shell with a CNC machine tool, the shell needs to be positioned and fixed with a fixture. After completing one processing step, the fixture needs to be changed to process other positions of the shell. However, after changing the fixture, the shell needs to be repositioned and fixed, and the control parameters of the CNC machine tool need to be readjusted. This operation is cumbersome, and processing errors easily accumulate, resulting in inaccurate processing.

[0036] In response to the technical defects brought about by this type of fixture, the present invention provides a shell processing fixture, which is provided with three support positions, each support position can fix a side wall of the shell, and the shell processing fixture is provided with a limiting device and a clamping device, the limiting device can position the shell, and the clamping device can fix the shell. Since the limiting devices of different support positions are provided on the same shell processing fixture, that is, when the shell needs to change the processing procedure, there is no need to change the fixture for repositioning, which reduces the accumulation of processing errors and improves processing accuracy. At the same time, the three support positions on a shell processing fixture can fix three shells, and the processing procedure of each support position can be different, that is, multiple processing procedures can be completed on the same shell processing fixture, reducing the number of times the control parameters of the CNC machine tool are adjusted, simplifying the operation steps, and improving production efficiency.

[0037] It should be noted that the support positions on the housing processing fixture are not limited to the three provided in the embodiment of the present invention, and will not be described in detail here.

[0038] Reference Figure 1 and Figure 2The shell 300 processing fixture provided by the embodiment of the present invention includes: a bracket 100; a support platform 200, which is arranged on the bracket 100, and the support platform 200 is provided with a first support position 210, a second support position 220 and a third support position 230, the first support position 210 can support the inner wall 310 of the shell 300, the second support position 220 can support the first outer wall 320 of the shell 300, and the third support position 230 can support the second outer wall 330 of the shell 300; a limiting device 400, which is arranged on the support platform 200, and the limiting device 400 can limit the shell 300 located on the support platform 200; a clamping device 500, which is arranged on the bracket 100, and the clamping device 500 can clamp the shell 300 located on the support platform 200.

[0039] It should be noted that the bracket 100 includes a base plate 110 and a support plate 120. Four support plates 120 are provided, evenly arranged on the base plate 110. The support plates 120 are arranged perpendicular to the base plate 110. The support platform 200 is arranged on the support plates 120. A space is left between the base plate 110 and the support platform 200 to install the clamping device 500. The base plate 110, support plates 120, and support platform 200 can be connected by screws or welding.

[0040] It should be noted that the support platform 200 has a different number of support positions. In the embodiment of the present invention, the support platform 200 is provided with three support positions: a first support position 210, a second support position 220, and a third support position 230. The three support positions are arranged side by side on the support platform 200. The housing 300 processed by the housing 300 processing fixture is L-shaped, and the L-shaped housing 300 has a curvature. The first outer wall 320 is opposite to the inner wall, and the second outer wall 330 is opposite to the inner wall and adjacent to the first outer wall.

[0041] Specifically, such as Figure 3 and Figure 4 As shown, the first support position 210 of the support table 200 is a convex block, which abuts against the inner wall, that is, the convex block abuts against the inner wall 310, thereby exposing the first outer wall 320 and the second outer wall 330 for processing. The second support position 220 is a first groove, and the first outer wall abuts against the bottom of the first groove, that is, the inner wall 310 abuts against the bottom of the first groove, thereby exposing the inner wall 310 for processing. Figure 5As shown, the inner wall 310 is composed of a first surface 311 and a second surface 312. The first surface 311 is relative to the first outer wall 320, and the second surface 312 is relative to the second outer wall 330. Since the inner wall 310 abuts the bottom of the first groove, when the housing 300 is fixed in the first groove, the first surface 311 is horizontal and the second surface 312 is vertical, which facilitates the processing of the second surface 312 of the inner wall 310. The third support position 230 is the second groove, and the second outer wall abuts the bottom of the second groove, that is, the second outer wall 330 abuts the bottom of the second groove. At this time, the first surface 311 is vertical and the second surface 312 is horizontal, which facilitates the processing of the first surface 311 of the inner wall 310.

[0042] It should be noted that the support table 200 can place three shells 300 at the same time and process the three shells 300 at the same time. The first support position 210 is the first processing step, the second support position 220 is the second processing step, and the third support position 230 is the third processing step. In one processing process, the CNC machine tool completes three processing steps on the shell 300 processing fixture. After completing one processing process, the shell 300 of the previous support position is moved to the next support position for positioning and fixing, and then the original shell 300 is added to the first support position 210, and then the next processing process is carried out. This processing fixture and processing method can reduce the number of times the shell 300 changes different fixtures, thereby reducing the accumulation of errors and improving processing accuracy.

[0043] Reference Figure 1 and Figure 2 The limiting device 400 is provided with a first limiting assembly, which includes two first limiting blocks 410. The two first limiting blocks 410 are arranged at opposite ends of the support platform 200. The first limiting blocks 410 at least partially protrude from the second support position 220 and the third support position 230. The first limiting assembly can simultaneously limit the housing 300 on the second support position 220 and the third support position 230. The limiting device 400 is also provided with a second limiting assembly, which includes two second limiting blocks 420. The two second limiting blocks 420 are arranged at opposite ends of the support platform 200 and are located near the first support position 210. The second limiting assembly can limit the housing 300 on the first support position 210.

[0044] like Figure 3As shown, one end portion of the first limiting block 410 protrudes from the second support position 220, and the other end portion protrudes from the third support position 230. In this arrangement, only two first limiting blocks 410 are needed to limit the shell 300 on the second support position 220 and the shell 300 on the third support position 230. Specifically, the two first limiting blocks 410 limit the shell 300 from both ends, that is, the shell 300 is clamped between the two first limiting blocks 410. The second limiting block 420 is similar and will not be described in detail here. The number of limiting blocks in the first limiting assembly and the second limiting assembly is not unique. The number of limiting blocks provided in the embodiment of the present invention is a preferred solution, which can save materials, and reducing the number of limiting blocks as much as possible can reduce the positioning error between different support positions.

[0045] Reference Figure 1 and Figure 6 The pressing device 500 includes a first cylinder 511 assembly 510 and a second cylinder 521 assembly 520. The first cylinder 511 assembly 510 is located near the first support position 210 and the second support position 220, and can press the shell 300 on the first support position 210 and the second support position 220. The second cylinder 521 assembly 520 is located near the third support position 230, and can press the shell 300 on the third support position 230.

[0046] It should be noted that the first cylinder 511 assembly 510 is provided with multiple components, including a first cylinder 511 and a first pressure block 512. The first pressure block 512 is provided at the end of the first guide rod of the first cylinder 511. The first pressure block 512 can cooperate with the support platform 200 to press the housing 300. Specifically, the first cylinder 511 is provided on the base plate 110 and is located in the space between the base plate 110 and the support platform 200. The support platform 200 is provided with multiple through holes, through which the first guide rod can pass. The first pressure block 512 is located on the top of the support platform 200 and moves vertically along with the first guide rod. When the first pressure block 512 moves downward, the first pressure block 512 presses the housing 300 located on the first support position 210 or the second support position 220 and fixes the housing 300. The shape of the first pressure block 512 can be designed to be rectangular, circular, or other shapes, which will not be described in detail here. The multiple first cylinders 511 are connected by conduits, so that the multiple first pressing blocks 512 can be controlled by one switch 130 to move synchronously, that is, the multiple first pressing blocks 512 work simultaneously.

[0047] It should be noted that the second cylinder 521 assembly 520 includes a second cylinder 521 and a second pressure block 522. The second pressure block 522 is rotatably connected to the end of the second guide rod of the second cylinder 521. The second pressure block 522 can rotate under the action of the second cylinder 521 and cooperate with the support platform 200 to press the housing 300. The second cylinder 521 assembly 520 is also provided with a third pressure block 523 and a connecting block 524. The third pressure block 523 and the second pressure block 522 are connected by the connecting block 524. The third pressure block 523 can follow the movement of the second pressure block 522 and press the housing 300. A mounting plate 140 is also provided on the base plate 110, and the second cylinder 521 is provided on the mounting plate 140. There are two second cylinders 521, and the two second cylinders 521 are also connected to the multiple first cylinders 511 through a conduit. A switch 130 is provided on the base plate 110, and the switch 130 controls the multiple first cylinders 511 and the two second cylinders 521 to work simultaneously.

[0048] Specifically, refer to Figure 3 The second pressure block 522 is provided with a fixed part 5221 and a rotating part 5222, the rotating part 5222 is rotatably mounted on the fixed part 5221, the fixed part 5221 is fixed on the second cylinder 521, and the second guide rod of the second cylinder 521 passes through the fixed part 5221 and is connected to one end of the rotating part 5222, wherein when the second guide rod moves upward, the rotating part 5222 rotates and presses down to the shell 300 of the third support position 230, and when the second guide rod moves downward, the rotating part 5222 rotates and disengages from the shell 300 on the third support position 230, thereby releasing the fixation of the shell 300 on the third support position 230.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. Shell processing fixture, characterized in that, include: Bracket; A support platform is provided on the bracket, the support platform is provided with three support positions, each of the support positions can support a shell, the shell is an L-shaped shell, the L-shaped shell has an inner wall, a first outer wall and a second outer wall, the first outer wall is opposite to the inner wall, and the second outer wall is adjacent to the first outer wall, the three support positions include a first support position, a second support position and a third support position, the first support position can support the inner wall, the second support position can support the first outer wall, and the third support position can support the second outer wall, so that the CNC machine tool can process different side walls of the three shells on the support platform; A limiting device is provided on the support platform, and the limiting device is capable of limiting the position of the housing located on the support platform; A pressing device is provided on the bracket, and the pressing device can press and fix the shell located on the support platform.

2. The housing processing fixture according to claim 1, characterized in that: The inner wall has a first surface and a second surface. The first supporting position is a convex block. The convex block abuts against the first surface and the second surface and exposes the first outer wall and the second outer wall.

3. The housing processing fixture according to claim 2, characterized in that: The second supporting position is a first groove, the first outer wall abuts against the bottom of the first groove, and the second outer wall abuts against the side wall of the first groove, so that the inner wall is exposed and the first surface is along the vertical direction.

4. The housing processing fixture according to claim 3, characterized in that: The third supporting position is a second groove, the second outer wall abuts against the bottom of the second groove, and the first outer wall abuts against the side wall of the second groove, so that the inner wall is exposed and the second surface is along the vertical direction.

5. The housing processing fixture according to claim 1, characterized in that: The limiting device is provided with a first limiting assembly, which includes two first limiting blocks. The two first limiting blocks are arranged at opposite ends of the support platform, and the first limiting blocks at least partially protrude from the second support position and the third support position. The first limiting assembly can simultaneously limit the shell at the second support position and the third support position.

6. The housing processing fixture according to claim 5, characterized in that: The limiting device is also provided with a second limiting assembly, which includes two second limiting blocks. The two second limiting blocks are arranged at opposite ends of the support platform and are located close to the first supporting position. The second limiting assembly can limit the shell on the first supporting position.

7. The housing processing fixture according to claim 1, characterized in that: The pressing device includes a first cylinder assembly and a second cylinder assembly. The first cylinder assembly is located near the first support position and the second support position and can press the shell on the first support position and the second support position. The second cylinder assembly is located near the third support position and can press the shell on the third support position.

8. The housing processing fixture according to claim 7, characterized in that: The first cylinder assembly includes a first cylinder and a first pressure block. The first pressure block is arranged at the end of the first guide rod of the first cylinder. The first cylinder can drive the first pressure block to move in a vertical direction. The first pressure block can cooperate with the support platform to press the shell.

9. The housing processing fixture according to claim 8, characterized in that: The second cylinder assembly includes a second cylinder and a second pressing block. The second pressing block is rotatably connected to the end of the second guide rod of the second cylinder. The second pressing block can rotate under the action of the second cylinder and cooperate with the support platform to press the shell.

10. The housing processing fixture according to claim 9, characterized in that: The second cylinder assembly is further provided with a third pressing block and a connecting block. The third pressing block and the second pressing block are connected via the connecting block. The third pressing block can move along with the second pressing block and press the housing.

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