A polishing device for speaker grille

Abstract

The present invention discloses a polishing device for a speaker grille, comprising a base plate, a positioning plate, and a polishing motor, wherein the polishing motor is connected to a driving wheel; a vertical support plate is provided on the positioning plate, a driven wheel is provided on the front end surface of the vertical support plate, a polishing belt is provided on the outer periphery of the driving wheel and the driven wheel, and a transverse support plate is also provided on the vertical support plate, the transverse support plate abuts against the inner surface of the polishing belt; positioning blocks are provided on both sides of the positioning plate on the base plate, a boss is provided on the top front end of the positioning block for hanging the speaker grille, and a groove is provided on the bottom front end of the positioning block for the speaker grille to avoid, which is arranged along the extension direction of the positioning block. The setting of the positioning block can ensure that the speaker grille is in a horizontal state when placed above the polishing surface, and the speaker grille can be fixed to the positioning block by the setting of the elastic holding piece, without the need for manual pressing to fix the speaker grille, which is more convenient to use, and the elastic setting can better adapt to the mounting boss of the lower mounting edge of the speaker grille.

Description

Technical Field

[0001] The present invention relates to the field of polishing devices, in particular to a polishing device for a speaker grille. Background Art

[0002] Speakers are an indispensable part of audio equipment, and speaker grilles are one of the most important parts of speakers. Speaker grilles have a polishing process during the processing. The mounting end of the speaker grille extends vertically inward with a mounting edge, and the mounting edge is bent and extended with a mounting ear with a hole. Usually, the surface of the speaker grille is painted, so that the inner surface of the mounting ear is also covered with a paint layer. In order to ensure that the mounting ear is more tightly fitted with the speaker shell when installed, the inner surface of the mounting ear is usually polished to remove the paint layer on the inner surface of the mounting ear.

[0003] In the existing technology, the inner surface of the mounting ear is usually polished by manually operating a handheld grinder. This method has high labor intensity and is difficult to operate, which easily causes the polished surface to be uneven, thereby affecting the installation accuracy of the speaker grille. The speaker grille can also be polished on a desktop grinder with a handheld grinder. Since the grinding surface of the desktop grinder is a circular surface, it is still difficult for the operator to ensure that the polished surface is smooth. Therefore, the reasonable setting of the grinder to improve the flatness of the polished surface is a key research direction in the industry.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a grinding device for a speaker grille, which is provided with a driving wheel and a driven wheel, and a grinding belt is sleeved on the outer periphery of the driving wheel and the driven wheel, so that the top of the grinding belt forms a horizontal grinding surface, and is provided with a transverse support plate that abuts against the inner surface of the grinding belt, so as to prevent the grinding belt from sagging during the grinding process, ensure that the grinding surface remains horizontal, thereby improving the grinding accuracy, and the setting of the positioning block can ensure that the speaker grille is in a horizontal state when placed above the grinding surface, and cooperates with the elastic The setting of the flexible pressure holding piece can fix the speaker grille on the positioning block. After polishing one mounting ear of the speaker grille, the entire speaker grille can be directly pushed to move the next mounting ear to the polishing position. The operation is easy and there is no need to press the speaker grille with hands to fix it, which makes it more convenient to use. The elastic setting can better adapt to the mounting boss of the lower mounting edge of the speaker grille, as well as the setting of the limit pin and the jack. Since the speaker grille will move in the opposite direction during the polishing process, the limit pin is used to press against the other mounting ears on the speaker grille to limit the movement of the speaker grille. The structure is ingenious.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A polishing device for a speaker grille comprises a base plate, a positioning plate arranged on the base plate, and a polishing motor arranged on the positioning plate, wherein the polishing motor is connected to a driving wheel;

[0008] The positioning plate is provided with a vertical support plate, and a driven wheel flush with the driving wheel is provided on the front end surface of the vertical support plate. A grinding belt is provided on the outer circumference of the driving wheel and the driven wheel, so that the top of the grinding belt forms a horizontal grinding surface. The vertical support plate is also provided with a transverse support plate, which is located at the top of the area surrounded by the grinding belt and abuts against the inner surface of the grinding belt, so as to prevent the grinding belt from sagging during the grinding process and ensure that the grinding surface remains horizontal, thereby improving the grinding accuracy;

[0009] The base plate is provided with positioning blocks on both sides of the positioning plate, the front end of the positioning block exceeds the front end of the driving wheel, the top surface of the grinding belt is flush with the top surface of the positioning block, the top front end of the positioning block is convexly provided with a boss for hanging the speaker grille arranged along the extension direction of the positioning block, the top surface of the boss is a horizontal supporting surface, and the rear end surface of the boss is a stop surface, which can ensure that the speaker grille is in a horizontal state when placed above the grinding surface. When grinding, the speaker grille is hung on the boss, and the top end of the speaker grille is manually pressed against the boss, so that the mounting ear of the speaker grille can be ground. The bottom front end of the positioning block is concavely provided with an avoidance groove arranged along the extension direction of the positioning block for the speaker grille to avoid;

[0010] The top wall of the avoidance groove is upwardly concavely provided with a receiving groove, and an elastic pressing member is slidably provided in the receiving groove, and the elastic pressing member includes a mounting bracket, an elastic member and a rubber wheel, and the elastic member is clamped between the top of the mounting bracket and the top wall of the receiving groove, and vertical guide grooves communicating with the receiving groove are provided on both sides of the positioning block, and a guide rod is movably provided in the vertical guide groove, and the guide rod passes through the mounting bracket, and the mounting bracket includes a main body and two rubber wheel mounting plates extending downward from the bottom of the main body, the two rubber wheel mounting plates are respectively located at the front end and the rear end of the main body, and the rubber wheel is rotatably arranged between the two rubber wheel mounting plates;

[0011] A socket is also provided on the top of the positioning block, and the socket is located behind the abutting surface. A limit pin for limiting the lateral movement of the speaker grille is detachably provided in the socket. The limit pin and the socket are provided. Since the speaker grille will move in the opposite direction during the polishing process, the limit pin is used to press against other mounting ears on the speaker grille to limit the movement of the speaker grille. The structure is ingenious.

[0012] As a preferred solution, the top of the mounting bracket and the top wall of the accommodating groove are both provided with sleeve portions, and the two ends of the elastic member are respectively placed in the two sleeve portions.

[0013] As a preferred solution, the elastic member is a spring.

[0014] As a preferred solution, the front end surface, horizontal support surface and abutment surface of the boss are all covered with Teflon tape. The Teflon tape has a smooth surface and anti-stick properties. The speaker grille needs to be moved on the boss to polish the multiple mounting ears on the speaker grille in turn. The Teflon tape can prevent the boss from scratching the speaker grille.

[0015] As a preferred solution, a plurality of first positioning blocks are protruding from the top of the positioning plate, and the plurality of first positioning blocks surround and form a first positioning groove for accommodating the grinding motor, and the grinding motor is confined in the first positioning groove;

[0016] The top of the positioning plate also protrudes a plurality of second positioning blocks, and the plurality of second positioning blocks are configured to form a second positioning groove for accommodating the vertical support plate. Mounting edges extend on both sides of the bottom end of the vertical support plate, and the mounting edges are confined in the second positioning groove. The first positioning groove and the second positioning groove are used to position the grinding motor and the vertical support plate, thereby ensuring that the driving wheel and the driven wheel are installed flush.

[0017] As a preferred solution, the transverse support plate extends forward from the top end of the vertical support plate as a whole.

[0018] As a preferred solution, the grinding motor and the mounting edge are both fixed to the positioning plate by screws.

[0019] As a preferred solution, there are multiple jacks, and the multiple jacks are arranged with a gradient spacing along the extension direction of the boss. Since the spacing between the mounting ears on the speaker grille will be different, the gradient arrangement can better ensure that the mounting ears to be processed stay above the horizontal support plate.

[0020] As a preferred solution, the base plate is provided with a plurality of first mounting holes for fixing the positioning plate and a plurality of second mounting holes for fixing the positioning block. Correspondingly, the positioning plate is provided with a plurality of third mounting holes corresponding to the first mounting holes. The positioning plate is fixed to the base plate by screws passing through the third mounting holes and the first mounting holes in sequence. The bottom of the positioning block is provided with a plurality of fourth mounting holes corresponding to the second mounting holes. The positioning block is fixed to the base plate by screws passing through the second mounting holes and the fourth mounting holes in sequence.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0022] The main feature is that a driving wheel and a driven wheel are provided, and the grinding belt is sleeved on the outer periphery of the driving wheel and the driven wheel, so that the top of the grinding belt forms a horizontal grinding surface, and a horizontal support plate is provided to abut against the inner surface of the grinding belt, so as to prevent the grinding belt from sagging during the grinding process, and ensure that the grinding surface remains horizontal, thereby improving the grinding accuracy. The setting of the positioning block can ensure that the speaker grille is in a horizontal state when placed above the grinding surface, and with the setting of the elastic pressing piece, the speaker grille can be fixed in the positioning position. On the block, after polishing one mounting ear of the speaker grille, directly push the entire speaker grille to move the next mounting ear to the polishing position. The operation is convenient, and there is no need to press the speaker grille with your hands to fix it. It is more convenient to use. The elastic setting can better adapt to the mounting boss of the lower mounting edge of the speaker grille, as well as the setting of the limit pin and the jack. Since the speaker grille will move in the opposite direction during the polishing process, the limit pin is used to press against the other mounting ears on the speaker grille to limit the movement of the speaker grille. The structure is ingenious.

[0023] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention;

[0025] Figure 2 is a three-dimensional schematic diagram from another perspective of a preferred embodiment of the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram from another perspective of a preferred embodiment of the present invention;

[0027] Figure 4 is a top view of a preferred embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the use of a preferred embodiment of the present invention;

[0029] Figure 6 is a side view of a preferred embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the installation of the elastic pressing member in the positioning block according to the preferred embodiment of the present invention;

[0031] Figure 8 It is a three-dimensional schematic diagram of a speaker grille according to a preferred embodiment of the present invention.

[0032] Description of the accompanying drawings:

[0033] 10. Base plate 11. First mounting hole

[0034] 12. Second mounting hole 20. Positioning plate

[0035] 21. First positioning block 22. Second positioning block

[0036] 23. Third mounting hole 30. Grinding motor

[0037] 31. Drive wheel

[0038] 40. Vertical support plate 41. Driven wheel

[0039] 42. Horizontal support plate 43. Installation edge

[0040] 50. Grinding belt 60. Positioning block

[0041] 61, boss 611, horizontal support surface

[0042] 612, blocking surface 601, avoidance groove

[0043] 602, jack 603, receiving slot

[0044] 604, vertical guide groove 70, speaker grille

[0045] 71. Mounting ears 72. Mounting bosses

[0046] 80, limit pin 90, elastic holding piece

[0047] 91. Mounting frame 911. Main body

[0048] 912, rubber wheel mounting plate 92, elastic member

[0049] 93. Rubber wheel 94. Guide rod

[0050] 901. Sleeve part. DETAILED DESCRIPTION

[0051] First of all, it should be noted that in the description of the present invention, the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0052] Please refer to Figures 1 to 8 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a substrate 10, a positioning plate 20 arranged on the substrate 10, and a grinding motor 30 arranged on the positioning plate 20.

[0053] The grinding motor 30 is connected to the driving wheel 31; the positioning plate 20 is provided with a vertical support plate 40, and the front end surface of the vertical support plate 40 is provided with a driven wheel 41 flush with the driving wheel 31, and the outer circumference of the driving wheel 31 and the driven wheel 41 are together provided with a grinding belt 50, so that the top of the grinding belt 50 forms a horizontal grinding surface, and the vertical support plate 40 is further provided with a horizontal support plate 42, which is located at the top of the area surrounded by the grinding belt 50 and abuts against the inner surface of the grinding belt 50, thereby preventing the grinding belt 50 from sinking during the grinding process, ensuring that the grinding surface remains horizontal, thereby improving the grinding accuracy; wherein, the installation of the driving wheel 31, the installation of the driven wheel 41 and the installation of the grinding belt 50 are all existing mature technologies and are not described in detail here;

[0054] Specifically, a plurality of first positioning blocks 21 are protruding from the top of the positioning plate 20, and the plurality of first positioning blocks 21 are configured to form a first positioning groove for accommodating the grinding motor 30, and the grinding motor 30 is restricted in the first positioning groove; a plurality of second positioning blocks 22 are also protruding from the top of the positioning plate 20, and the plurality of second positioning blocks 22 are configured to form a second positioning groove for accommodating the vertical support plate 40, and mounting edges 43 are extended on both sides of the bottom end of the vertical support plate 40, and the mounting edges 43 are restricted in the second positioning groove. The first positioning groove and the second positioning groove are used to position the grinding motor 30 and the vertical support plate 40, thereby ensuring that the driving wheel 31 and the driven wheel 41 are installed flush, and the grinding motor 30 and the mounting edges 43 are both fixed to the positioning plate 20 by screws;

[0055] The base plate 10 is provided with a plurality of first mounting holes 11 for fixing the positioning plate 20 and a plurality of second mounting holes 12 for fixing the positioning block 60. Correspondingly, the positioning plate 20 is provided with a plurality of third mounting holes 23 corresponding to the first mounting holes 11. The positioning plate 20 is fixed to the base plate 10 by screws passing through the third mounting holes 23 and the first mounting holes 11 in sequence; preferably, the horizontal support plate 42 extends forward as a whole from the top of the vertical support plate 40.

[0056] The base plate 10 is provided with positioning blocks 60 on both sides of the positioning plate 20. The front end of the positioning block 60 exceeds the front end of the driving wheel 31, and the top surface of the grinding belt 50 is flush with the top surface of the positioning block 60. The top front end of the positioning block 60 is convexly provided with a boss 61 arranged along the extension direction of the positioning block 60 for hanging the speaker grille 70. The top surface of the boss 61 is a horizontal supporting surface 611, and the rear end surface of the boss 61 is a stop surface 612, which can ensure that the speaker grille 70 is in a horizontal state when placed above the grinding surface. When grinding, the speaker grille 70 is hung on the boss 61, and the top end of the speaker grille 70 is manually pressed against the boss 61, so that the mounting ear 71 of the speaker grille 70 can be ground. The bottom front end of the positioning block 60 is concavely provided with an avoidance groove 601 arranged along the extension direction of the positioning block 60 for the speaker grille 70 to avoid.

[0057] The top wall of the avoidance groove 601 is recessed upwardly with a receiving groove 603, and an elastic holding member 90 is slidably provided in the receiving groove 603. The elastic holding member 90 includes a mounting frame 91, an elastic member 92 and a rubber wheel 93. The elastic member 92 is clamped between the top of the mounting frame 91 and the top wall of the receiving groove 603. Both sides of the positioning block 60 are provided with vertical guide grooves 604 connected to the receiving groove 603. A guide rod 94 is movably provided in the vertical guide groove 604. The guide rod 94 passes through the mounting frame 91. The mounting frame 91 includes a main body 911 and a self-main body. Two rubber wheel mounting plates 912 extend downward from the bottom of 911. The two rubber wheel mounting plates 912 are respectively located at the front and rear ends of the main body 911. The rubber wheel 93 is rotatably arranged between the two rubber wheel mounting plates 912. The setting of the elastic holding member can fix the speaker grille on the positioning block. After polishing one mounting ear of the speaker grille, the entire speaker grille can be directly pushed to move the next mounting ear to the polishing position. The operation is convenient and there is no need to press the speaker grille manually, which is more convenient to use. The elastic setting can better adapt to the mounting boss 72 of the lower mounting edge of the speaker grille 70.

[0058] The top of the positioning block 60 is further provided with a socket 602, which is located behind the abutting surface. A limit pin 80 for limiting the lateral movement of the speaker grille 70 is detachably provided in the socket 602. The limit pin 80 and the socket 602 are provided so that the speaker grille 70 can move in the opposite direction during the polishing process. The limit pin 80 is used to abut against the other mounting ears 71 on the speaker grille 70 to limit the movement of the speaker grille 70, which is a clever structure.

[0059] Specifically, the bottom of the positioning block 60 is provided with a plurality of fourth mounting holes (not shown) corresponding to the second mounting holes 12. The positioning block 60 is fixed to the base plate 10 by screws passing through the second mounting holes 12 and the fourth mounting holes in sequence. The top of the mounting frame 91 and the top wall of the accommodating groove 603 are both provided with sleeve portions 901, and the two ends of the elastic member 92 are respectively placed in the two sleeve portions 901.

[0060] Preferably, the front end surface, horizontal support surface, and abutment surface of the boss 61 are all covered with Teflon tape (not shown in the figure). The Teflon tape has a smooth surface and anti-stick properties. The speaker grille 70 needs to be moved on the boss 61 to polish the multiple mounting ears 71 on the speaker grille 70 in sequence. The Teflon tape can prevent the boss 61 from scratching the speaker grille 70.

[0061] There are multiple jacks 602, and the multiple jacks 602 are arranged with a gradient spacing along the extension direction of the boss 61. Since the spacing between the mounting ears 71 on the speaker grille 70 will be different, the gradient arrangement can better ensure that the mounting ears 71 to be processed stay above the transverse support plate 42. The elastic member 92 is a spring; in this embodiment, the rubber wheel mounting plate 912 is in a "convex" shape.

[0062] The design emphasis of the present invention is:

[0063] The main feature is that a driving wheel and a driven wheel are provided, and the grinding belt is sleeved on the outer periphery of the driving wheel and the driven wheel, so that the top of the grinding belt forms a horizontal grinding surface, and a horizontal support plate is provided to abut against the inner surface of the grinding belt, so as to prevent the grinding belt from sagging during the grinding process, and ensure that the grinding surface remains horizontal, thereby improving the grinding accuracy. The setting of the positioning block can ensure that the speaker grille is in a horizontal state when placed above the grinding surface, and with the setting of the elastic pressing piece, the speaker grille can be fixed in the positioning position. On the block, after polishing one mounting ear of the speaker grille, directly push the entire speaker grille to move the next mounting ear to the polishing position. The operation is convenient, and there is no need to press the speaker grille with your hands to fix it. It is more convenient to use. The elastic setting can better adapt to the mounting boss of the lower mounting edge of the speaker grille, as well as the setting of the limit pin and the jack. Since the speaker grille will move in the opposite direction during the polishing process, the limit pin is used to press against the other mounting ears on the speaker grille to limit the movement of the speaker grille. The structure is ingenious.

[0064] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A polishing device for a speaker grille, comprising a base plate, a positioning plate disposed on the base plate, and a polishing motor disposed on the positioning plate, wherein the polishing motor is connected to a drive wheel; characterized in that: The positioning plate is provided with a vertical support plate, a driven wheel flush with the driving wheel is provided on the front end surface of the vertical support plate, and a grinding belt is provided on the outer periphery of the driving wheel and the driven wheel. The vertical support plate is also provided with a transverse support plate, which is located at the top of the area surrounded by the grinding belt and abuts against the inner surface of the grinding belt; The base plate is provided with positioning blocks on both sides of the positioning plate, the front end of the positioning block exceeds the front end of the driving wheel, the top surface of the grinding belt is flush with the top surface of the positioning block, the top front end of the positioning block is provided with a boss arranged along the extension direction of the positioning block for hanging the speaker grille, the top surface of the boss is a horizontal supporting surface, the rear end surface of the boss is a blocking surface, and the bottom front end of the positioning block is provided with an avoidance groove arranged along the extension direction of the positioning block for the speaker grille to avoid; The top wall of the avoidance groove is upwardly concavely provided with a receiving groove, and an elastic pressing member is slidably provided in the receiving groove, and the elastic pressing member includes a mounting bracket, an elastic member and a rubber wheel, and the elastic member is clamped between the top of the mounting bracket and the top wall of the receiving groove, and vertical guide grooves communicating with the receiving groove are provided on both sides of the positioning block, and a guide rod is movably provided in the vertical guide groove, and the guide rod passes through the mounting bracket, and the mounting bracket includes a main body and two rubber wheel mounting plates extending downward from the bottom of the main body, the two rubber wheel mounting plates are respectively located at the front end and the rear end of the main body, and the rubber wheel is rotatably arranged between the two rubber wheel mounting plates; A socket is also provided on the top of the positioning block, and the socket is located behind the blocking surface. A limit pin for limiting the lateral movement of the speaker grille is detachably provided in the socket.

2. The polishing device for a speaker grille according to claim 1, characterized in that: The top of the mounting frame and the top wall of the accommodating groove are both provided with sleeve portions, and the two ends of the elastic member are respectively placed in the two sleeve portions.

3. The polishing device for a speaker grille according to claim 1, characterized in that: The elastic member is a spring.

4. The polishing device for a speaker grille according to claim 1, characterized in that: The front end surface, the horizontal supporting surface and the abutting surface of the boss are all covered with Teflon tape.

5. The polishing device for a speaker grille according to claim 1, characterized in that: A plurality of first positioning blocks are protruding from the top of the positioning plate, and the plurality of first positioning blocks surround and form a first positioning groove for accommodating the grinding motor, and the grinding motor is confined in the first positioning groove; The top of the positioning plate also protrudes with multiple second positioning blocks, which surround and form a second positioning groove for accommodating the vertical support plate. Both sides of the bottom end of the vertical support plate extend with installation edges, and the installation edges are confined in the second positioning groove.

6. The polishing device for a speaker grille according to claim 5, characterized in that: The transverse support plate integrally extends forward from the top end of the vertical support plate.

7. The polishing device for a speaker grille according to claim 5, characterized in that: The grinding motor and the mounting edge are both fixed to the positioning plate by screws.

8. The polishing device for a speaker grille according to claim 1, characterized in that: There are multiple sockets, and the sockets are arranged with gradually varying intervals along the extension direction of the boss.

9. The polishing device for a speaker grille according to claim 1, characterized in that: The base plate is provided with a plurality of first mounting holes for fixing the positioning plate and a plurality of second mounting holes for fixing the positioning block. Correspondingly, the positioning plate is provided with a plurality of third mounting holes corresponding to the first mounting holes. The positioning plate is fixed to the base plate by screws passing through the third mounting holes and the first mounting holes in sequence. On the base plate, a plurality of fourth mounting holes corresponding to the second mounting holes are provided at the bottom of the positioning block. The positioning block is fixed on the base plate by screws passing through the second mounting hole and the fourth mounting hole in sequence.

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