Flattening jig for flat horn

Abstract

A flattening jig for a flat horn comprises a base, a vertical plate is installed on the base through screws, a front protruding plate is installed at the upper end of the vertical plate through screws, a downward pressing air cylinder is installed on the front protruding plate, a downward pressing disc is installed at the movable end of the downward pressing air cylinder, a guide plate is installed on the vertical plate through screws, and a plurality of connecting rods are arranged on the downward pressing disc. The connecting rod is arranged on the guide plate in a penetrating mode, the lower end of the connecting rod is connected with a lower pressing ring through threads, the end, provided with a voice diaphragm, of the flat horn is located under the lower pressing ring, a positioning mechanism is arranged on the base to position the flat horn, and it can be ensured that the horn is located under the lower pressing ring through positioning of the positioning mechanism. And the lower pressing ring acts on the bonding part of the voice diaphragm and the voice coil, so that the voice diaphragm is prevented from being damaged during flattening, and in addition, the flattening effect and efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to panel loudspeaker processing technical field especially relates to a panel loudspeaker is with flat -punching fixture. BACKGROUND

[0002] The sound film of panel loudspeaker is pasted on the voice coil, in the specific processing process in order to promote the yield of loudspeaker, often through a wooden flat -punching block multiple knockings sound film to ensure the pasting effect between sound film and voice coil and the aesthetic appearance. Although the wooden flat -punching block is adopted to avoid the damage to sound film when knocking, but in the operation process, there is still the risk of causing damage to sound film. At the same time, due to the adoption of manual flat -punching mode, the problem of missing flat -punching is prone to occur, thereby affecting the quality of loudspeaker. SUMMARY

[0003] The utility model provides a panel loudspeaker is with flat -punching fixture to solve the deficiency of above -mentioned prior art, improves the efficiency of flat -punching and can position loudspeaker to improve the flat -punching effect, has stronger practicality.

[0004] In order to realize the purpose of the utility model, the following technology is adopted:

[0005] A kind of flat -punching fixture for panel loudspeaker, including base, vertical plate is installed on base by screw, front lobe is installed on the upper end of vertical plate by screw, lower pressure cylinder is installed on front lobe, the movable end of lower pressure cylinder is installed with lower pressure disc, vertical plate is installed with guide plate by screw, lower pressure disc is equipped with multiple connecting rods, connecting rod is arranged on guide plate, the lower end of connecting rod is connected with lower pressure ring by screw thread, one end of panel loudspeaker with sound film is located directly below lower pressure ring, positioning mechanism is equipped on base to position panel loudspeaker, through the positioning of positioning mechanism, it can be ensured that loudspeaker is located directly below lower pressure ring, and the adhesion of sound film and voice coil is acted on by lower pressure ring, so as to avoid damage to sound film when flat -punching, in addition, the effect and efficiency of flat -punching can be improved.

[0006] Further, the positioning mechanism includes multiple fixed rods installed on the base, the upper end of the fixed rod is connected with a fixed screw by screw thread, the upper end of the fixed rod is provided with a support disc, the support disc is installed on the upper end of the fixed rod by the fixed screw, a center hole is concentrically provided on the support disc, the center hole is concentrically arranged with the lower pressure ring, the magnet part of the panel loudspeaker is arranged in the center hole, the support disc can support the loudspeaker placed thereon, and the center hole can constrain the magnet part. This way can improve the positioning accuracy of the loudspeaker.

[0007] Further, considering that the diameter of the center hole is larger than the diameter of the magnet part, thereby affecting the accuracy of the positioning of the loudspeaker, a plurality of pairs of guide holes are arranged in a circumferential array on the support disc, movable rods are arranged in the guide holes, upper ends of each pair of movable rods are connected with positioning blocks through threads, inner walls of the positioning blocks act on the circumferential side of the panel loudspeaker, the positioning blocks are located on the upper side of the support disc, lower ends of each pair of movable rods are connected with limiting lower plates through threads, the limiting lower plates are located on the lower side of the support disc, the positioning effect on the loudspeaker can be improved through the positioning blocks, and when positioning, the inner walls act on the circumferential side of the voice coil of the loudspeaker.

[0008] Further, the inner wall of the positioning block is formed with an inner concave arc groove matched with the circumferential side of the panel loudspeaker, and the positioning effect is improved in a manner of enlarging the contact area.

[0009] Further, the limiting lower plate is provided with a lower convex plate, a spring is fixed on the lower convex plate, the other end of the spring is fixed with a mounting seat, the mounting seat is mounted on the support disc through a screw, and the outer wall of the limiting lower plate is tangent to an eccentric disc, and the eccentric disc is eccentrically provided with a rotating shaft. The positioning block can be moved to the circumferential side of the loudspeaker through the rotation of the eccentric disc, so that the loudspeaker is positioned.

[0010] Further, in order to enable the eccentric disc to rotate synchronously, thereby quickly positioning the loudspeaker, a gear is connected to the lower end of the rotating shaft through a pin, a pair of arc-shaped grooves are symmetrically arranged on the support disc, a driving rod is arranged in the arc-shaped groove, an inner tooth ring is connected to the lower end of the driving rod through threads, the inner tooth ring is engaged with the gear, a nut is connected to the driving rod through threads, and the nut is located on the upper side of the support disc.

[0011] Further, in order to prolong the rotation angle of the inner tooth ring and improve the structural strength of the support disc, the arc-shaped groove is in a quarter circular arc structure.

[0012] The above technical scheme has the following advantages:

[0013] The loudspeaker is positioned, so that the problem of damage to the sound film in the flattening process is avoided, and the flattening effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be further described in detail below with reference to the drawings.

[0015] Figure 1 A three-dimensional structure of one of the embodiments is shown Figure 1 .

[0016] Figure 2 A three-dimensional structure of one of the embodiments is shown Figure 2 .

[0017] Figure 3A magnified view of point A is shown. Detailed Implementation

[0018] like Figures 1-3 As shown, a flattening fixture for a flat-panel loudspeaker includes a base 1, a vertical plate 2 mounted on the base 1 by screws, a front protrusion plate 20 mounted on the upper end of the vertical plate 2 by screws, a pressing cylinder 21 mounted on the front protrusion plate 20, a pressing plate 22 mounted on the movable end of the pressing cylinder 21, a guide plate 23 mounted on the vertical plate 2 by screws, and multiple connecting rods 24 provided on the pressing plate 22. The connecting rods 24 pass through the guide plate 23, and the lower end of the connecting rods 24 is threadedly connected to a pressing ring 25. The end of the flat-panel loudspeaker with a diaphragm is located directly below the pressing ring 25.

[0019] The base 1 is equipped with a positioning mechanism to position the flat speaker.

[0020] Specifically, the positioning mechanism includes multiple fixing rods mounted on the base 1. The upper end of the fixing rod is connected to a fixing screw by a thread. The upper end of the fixing rod is provided with a support plate 3. The support plate 3 is mounted on the upper end of the fixing rod by a fixing screw. A central hole is concentrically opened on the support plate 3. The central hole is concentrically set with the lower pressure ring 25. The magnet part of the flat speaker passes through the central hole. Multiple pairs of guide holes 39 are arranged in a circumferential array on the support plate 3. Movable rods 38 are inserted into the guide holes 39. The upper end of each pair of movable rods 38 is connected to a positioning block 43 by a thread. The inner wall of the positioning block 43 is formed with an inwardly concave arc groove that matches the periphery of the flat horn. The inner wall of the positioning block 43 acts on the periphery of the flat horn. The positioning block 43 is located on the upper side of the support plate 3. The lower end of each pair of movable rods 38 is connected to a limiting lower plate 37 by a thread. The limiting lower plate 37 is located on the lower side of the support plate 3. A lower convex plate 40 is provided on the limiting lower plate 37. A spring 41 is fixed on the lower convex plate 40. The other end of the spring 41 is fixed to a mounting seat 42. The mounting seat 42 is installed on the support plate 3 by screws. An eccentric plate 36 is tangent to the outer wall of the limiting lower plate 37. A rotating shaft 35 is eccentrically provided on the eccentric plate 36. The lower end of the rotating shaft 35 is connected to a gear 34 via a pin. A pair of arc-shaped grooves 30 are symmetrically opened on the support plate 3. The arc-shaped grooves 30 have a quarter-circle arc structure. A toggle rod 32 passes through the arc-shaped grooves 30. The lower end of the toggle rod 32 is connected to an internal gear ring 31 via a thread. The internal gear ring 31 meshes with the gear 34. A nut 33 is connected to the toggle rod 32 via a thread. The nut 33 is located on the upper side of the support plate 3.

[0021] During application, the speaker with the attached diaphragm is placed on support plate 3. When placed, the speaker's orientation is as follows: Figure 1 As shown, the magnet part of the speaker is inserted through the central hole, while the speaker diaphragm faces upward.

[0022] Then the operator rotates the inner tooth ring 31 by rotating the lever 32, the rotation of the inner tooth ring 31 drives the gear 34 to rotate, the rotation of the gear 34 drives the rotating shaft 35 and the eccentric disc 36 on the rotating shaft 35 to rotate, the rotation of the eccentric disc 36 acts on the outer wall of the limiting lower plate 37, so that the limiting lower plate 37 moves inward under the action of the eccentric disc 36, and the spring 41 is compressed in the moving process, and the positioning block 43 on the limiting lower plate 37 also moves to the voice coil of the loudspeaker, so that the loudspeaker is positioned by the positioning block 43, and the positioned loudspeaker is located directly below the pressing ring 25, and the axial direction of the loudspeaker coincides with the axial direction of the pressing ring 25. Then the pressing cylinder 21 is started, and the pressing ring 25 is driven to move downward, and the pressing ring 25 realizes the flattening operation of the diaphragm. After completion, the pressing ring 25 returns to the initial state, the positioning of the loudspeaker is cancelled, and finally the loudspeaker is taken out.

[0023] The preferred embodiments of the present application are described above, but the present application is not limited to the above, and it is obvious that those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and changes of the present application belong to the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and changes.

Claims

1. A flattening fixture for a flat-panel loudspeaker, characterized in that, Includes a base (1), a vertical plate (2) is installed on the base (1) by screws, a front protrusion plate (20) is installed on the upper end of the vertical plate (2) by screws, a downward pressure cylinder (21) is installed on the front protrusion plate (20), a downward pressure plate (22) is installed on the movable end of the downward pressure cylinder (21), a guide plate (23) is installed on the vertical plate (2) by screws, multiple connecting rods (24) are provided on the downward pressure plate (22), the connecting rods (24) pass through the guide plate (23), the lower end of the connecting rods (24) is connected to a downward pressure ring (25) by thread, and the end of the flat speaker with the diaphragm is located directly below the downward pressure ring (25); The base (1) is equipped with a positioning mechanism to position the flat speaker.

2. The flattening fixture for a flat-panel speaker according to claim 1, characterized in that, The positioning mechanism includes multiple fixing rods installed on the base (1). The upper end of the fixing rod is connected to a fixing screw by a thread. The upper end of the fixing rod is provided with a support plate (3). The support plate (3) is installed on the upper end of the fixing rod by a fixing screw. A central hole is concentrically opened on the support plate (3). The central hole is concentrically set with the lower pressure ring (25). The magnet part of the flat speaker passes through the central hole.

3. The flattening fixture for a flat-panel speaker according to claim 2, characterized in that, The support plate (3) has multiple pairs of guide holes (39) arranged in a circumferential array. Movable rods (38) are inserted into the guide holes (39). The upper end of each pair of movable rods (38) is connected to a positioning block (43) by a thread. The inner wall of the positioning block (43) acts on the periphery of the flat horn. The positioning block (43) is located on the upper side of the support plate (3). The lower end of each pair of movable rods (38) is connected to a limit plate (37) by a thread. The limit plate (37) is located on the lower side of the support plate (3).

4. The flattening fixture for a flat-panel speaker according to claim 3, characterized in that, The inner wall of the positioning block (43) is formed with an inward concave arc groove that matches the periphery of the flat horn.

5. The flattening fixture for a flat-panel speaker according to claim 3, characterized in that, The lower limiting plate (37) is provided with a lower protrusion plate (40), and a spring (41) is fixed on the lower protrusion plate (40). The other end of the spring (41) is fixed with a mounting base (42). The mounting base (42) is installed on the support plate (3) by screws. The outer wall of the lower limiting plate (37) is tangent to an eccentric plate (36), and a rotating shaft (35) is eccentrically provided on the eccentric plate (36).

6. The flattening fixture for a flat-panel speaker according to claim 5, characterized in that, The lower end of the rotating shaft (35) is connected to a gear (34) by a pin. A pair of arc-shaped grooves (30) are symmetrically opened on the support plate (3). A toggle rod (32) is inserted in the arc-shaped groove (30). The lower end of the toggle rod (32) is connected to an internal gear ring (31) by a thread. The internal gear ring (31) meshes with the gear (34). A nut (33) is connected to the toggle rod (32) by a thread. The nut (33) is located on the upper side of the support plate (3).

7. The flattening fixture for a flat-panel speaker according to claim 5, characterized in that, The arc groove (30) has a quarter-circle arc structure.

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