TWI511578B - Pressing apparatus and method - Google Patents

Description

Automatic pressing mechanism and pressing method

The invention relates to a pressing mechanism and a pressing method, in particular to a pressing mechanism capable of automatically installing a horn net and a method of pressing the same by the pressing mechanism.

Conventional sound playback devices (such as televisions, radios, stereos, notebook computers, etc.) are equipped with playback devices for playing sound. The speaker of the playing device corresponds to the speaker of the sound playing device and is usually equipped with a speaker net.

In the prior art, the connection between the speaker net and the housing is usually firstly connected to the card slot on the housing through the claws on the speaker net, and then the claws on the speaker net are bent and flattened and fixed to the shell by manual means. body. However, the above operation method is very easy to cause fatigue to the operator, which affects the production efficiency; and the above fixing method is not easy to be positioned during assembly, and the casing is easily scratched when the jaws of the horn net are manually bent. It is easy to cause problems such as tight press fit, which affects the quality of the playback device.

In view of the above, it is necessary to provide a high-precision, high-efficiency automatic pressing mechanism and a method of pressing the same using the automatic pressing mechanism.

An automatic pressing mechanism for pressing a jaw of a horn net to a housing of a playback device, the automatic nip mechanism comprising a work platform carrying a housing pre-assembled with a horn net, a first pressure plate, and a a second pressure plate, a plurality of curved members fixed to the first pressure plate, and a plurality of flattening members fixed to the second pressure plate, wherein the first pressure plate is hanged on the The second pressure plate, the flattening members slidably pass through the first pressure plate, and when the second pressure plate is driven to move, the bending members first bend the claws, and the pressure flat members will The jaws are flattened to the housing.

A pressing method for pressing a jaw of a horn net to a casing by an automatic pressing mechanism, the automatic pressing mechanism comprising a working table, a first pressing plate, a second pressing plate, and a first pressing plate a plurality of curved members and a plurality of flattening members fixed to the second platen, wherein the first platen is movably attached to the second platen, and the flattening members are slidably passed through the first platen; The method comprises the steps of: (i) securing a housing pre-assembled with a horn mesh to the table, and causing the jaws to face the respective guide members; (ii) driving the second platen movement, The isotropic bending member bends the claws toward the housing, and when the claws are bent to a predetermined angle, the guiding members stop moving; (iii) the second pressing plate drives the flattening The member presses the bent jaws against the housing.

Compared with the prior art, when the automatic pressing mechanism of the present invention drives the second pressing plate to move, the guiding members first bend the claws of the horn net, and then the pressing members make the claws Pressing the housing to achieve automatic installation of the horn net improves installation efficiency and accuracy.

10‧‧‧ Speaker Network

102‧‧‧Claws

20‧‧‧Workbench

32‧‧‧First pressure plate

32‧‧‧step hole

34‧‧‧Bending members

340‧‧‧bend surface

36‧‧‧Flexible components

38‧‧‧Limit unit

380‧‧‧Limited column

382‧‧‧stop column

52‧‧‧Second platen

54‧‧‧flattening members

540‧‧‧ Pressing surface

60‧‧‧Connecting parts

62‧‧‧ head

70‧‧‧shell

72‧‧‧ card slot

80‧‧‧ Positioning block

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a preferred embodiment of the automatic press-fit mechanism of the present invention at the beginning of press-fitting.

2 is a flow chart of an automatic pressing method of a preferred embodiment of the automatic pressing mechanism of the present invention; Figure.

Figure 3 is a schematic view showing the structure of the preferred embodiment of the automatic press-fit mechanism of the present invention at the end of press-fitting.

Referring to Figure 1, a preferred embodiment of the automatic compression mechanism of the present invention is used to bend the plurality of jaws 102 of the horn mesh 10 and press them into the housing 70 of the playback device. The automatic pressing mechanism includes a working table 20, a first pressing plate 32, a plurality of guiding members 34 corresponding to the claws 102, a plurality of elastic members 36, a limiting unit 38, a second pressing plate 52, a plurality of corresponding points, etc. The flattening member 54 of the jaw 102 and the plurality of connectors 60.

The housing 70 is correspondingly provided with a card slot 72 through which the claws 102 are inserted.

The limiting unit 38 includes a limiting post 380 and a stop post 382.

The top surface of the table 20 can be placed with the horn mesh 10 and a positioning block 80 for positioning the housing 70. The stop post 382 of the limiting unit 38 is integrally formed or assembled on the top surface of the table 20.

The first pressure plate 32 is located above the table 20. A plurality of through holes (not labeled) are provided in the middle of the first pressure plate 32 for the corresponding flattening members 54 to slide through. Each of the bending members 34 is integrally formed or disposed near the through hole of the first pressure plate 32, and the free end thereof is located below the first pressure plate 32 and is provided with an inclined bending surface 340. In the present embodiment, the bent surface 340 is substantially at an angle of 45 degrees with respect to the horizontal direction. The edge portion of the first pressure plate 32 further defines a plurality of stepped holes 320 which are large and small. The limiting post 380 of the limiting unit 38 is assembled or integrally formed on the bottom surface of the first pressure plate 32 corresponding to the stopping block 382.

The limiting unit 38 is used to limit the range of motion of the first platen 32 to avoid The overtravel of the first platen 32 destroys the horn mesh 10.

The second pressure plate 52 can be driven by a driving unit (not shown, such as a punch, a cylinder or a hydraulic cylinder, etc.) and located above the first pressure plate 32. Each of the flattening members 54 is integrally formed or mounted on the bottom surface of the second pressure plate 52 and slidably penetrates the through hole of the first pressure plate 32. The free end thereof is located below the first pressure plate 32 and is provided with a press fit. Face 540, the pressing surface 540 is adjacent to the curved surface 340 of the curved members 34. The second pressure plate 52 is provided with a plurality of positioning holes (not labeled) corresponding to the stepped holes 320 of the first pressure plate 32. In this embodiment, the positioning holes are threaded holes.

In the present embodiment, each of the elastic members 36 is a coil spring.

One end of each connecting member 60 is provided with a larger-sized head 62, and the head portion 62 is vertically provided with a rod portion, and the end portion of the rod portion is provided with a thread. The connecting member 60 is slidably mounted in the corresponding stepped hole 320 from the lower side of the first pressure plate 32. The head portion 62 is slidably received in a portion of the stepped hole 320 and abuts the stepped hole. The stepped surface in the sleeves of the connecting members 60 is sleeved with the elastic members 36 and the ends thereof are locked into the positioning holes of the second pressure plate 52. Thus, the first pressure plate 32 is longitudinally slidably suspended from the second pressure plate 52. Both ends of each elastic member 36 can respectively abut the first pressure plate 32 and the second pressure plate 52.

Referring to FIG. 1 to FIG. 3 together, the automatic pressing method of the automatic pressing mechanism of the present invention comprises the following steps:

In step S1, the speaker net 10 and the housing 70 are fixed to the table 20.

The speaker net 10 is placed on the table 20, and the housing 70 is placed on the positioning member 80, and the claw 102 of the speaker net 10 is inserted into the slot 72 of the housing 70. The curved surface 340 of the curved member 34.

In step S2, the claw 102 of the horn mesh 10 is bent.

The drive unit drives the second pressure plate 52 to move toward the table 20. Since the elastic members 36 have a large reluctance coefficient, the first pressure plate 32 moves toward the table 20 along with the second pressure plate 52. Thereby, the guide members 34, the limiting posts 380 and the flattening members 54 all move toward the table 20. After the bending surface 340 of the bending member 34 contacts the inner side of the claw 102 of the horn mesh 10, the first pressure plate 32 continues to move toward the table 20 with the second pressure plate 50, and the bending surface 340 is pressed. The corresponding jaws 102 force them to bend outward. When the claws 102 are bent outward to an angle of 45 degrees, the limiting post 380 abuts the stop post 382, and at this time, the first pressing plate 32 stops moving.

In step S3, the claw 102 of the horn mesh 10 is pressed against the housing 70.

The driving unit drives the second pressure plate 52 to continue to move toward the table 20 such that the pressing plane 540 of the flattening members 54 flattens and conforms the claw 102 bent by the horn mesh 10 to the housing 70. During this process, the elastic members 36 are elastically deformed under pressure. The connecting members 60 move with the second pressing plate 52, and the head 62 extends from the stepped holes 320 to move below the first pressing plate 32.

After the above steps are completed, the driving unit drives the second pressing plate 52 away from the table 20, and the elastic members 36 are restored to deform, so that the heads 62 of the connecting members 60 are slidably retracted to the stepped holes 320 and pressed against each other. The stepped surface of the stepped hole 320 of the first pressure plate 32 drives the first pressure plate 32 to also move upward to be reset.

The automatic pressing mechanism of the present invention can also select the elastic members 36 according to the hardness of the claws 102 of the horn mesh 10 to ensure that the elastic members 36 have sufficient elastic force to force the guiding members 34 to the card. The claw 102 is bent. In addition, the conductive members 34 and the flattening members may be disposed according to the thickness of the different casing 70 and the horn mesh 10. 54 The distance of the downward movement.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

102‧‧‧Claws

20‧‧‧Workbench

32‧‧‧First pressure plate

320‧‧‧step hole

34‧‧‧Bending members

36‧‧‧Flexible components

380‧‧‧Limited column

382‧‧‧stop column

52‧‧‧Second platen

54‧‧‧flattening members

60‧‧‧Connecting parts

62‧‧‧ head

70‧‧‧shell

72‧‧‧ card slot

80‧‧‧ Positioning block

Claims (10)

An automatic pressing mechanism for pressing a jaw of a horn net to a housing of a playback device, the automatic nip mechanism comprising a work platform carrying a housing pre-assembled with a horn net, a first pressure plate, and a a second pressure plate, a plurality of guide members fixed to the first pressure plate, and a plurality of flattening members fixed to the second pressure plate, wherein the first pressure plate is movably mounted on the second pressure plate, and the pressure flat members are slidable Through the first pressure plate, when the second pressure plate is driven to move, the bending members first bend the claws, and the pressing members press the jaws to the housing. The automatic pressing mechanism according to claim 1, wherein the first pressure plate is hung on the second pressure plate through a plurality of connecting members, each connecting piece has a head, and the first pressure plate is provided with a plurality of step holes. The connecting members pass through the corresponding stepped holes and are fixed to the second pressing plate, and the connecting members are slidable in the corresponding stepped holes, and the head portions are corresponding to the stepped surfaces of the corresponding stepped holes withstand. The automatic pressing mechanism according to the second aspect of the invention, wherein the first pressure plate and the second pressure plate are provided with a plurality of elastic members sleeved on the connecting member, and the two ends of the elastic members respectively abut against First and second pressure plates. The automatic pressing mechanism according to claim 1, wherein each of the bending members is fixed to the bottom of the first pressure plate, and is coupled with the first pressure plate, and the free end of each of the bending members is provided with an inclined Bending surface. The automatic pressing mechanism according to claim 1, wherein each of the flattening members is fixed to a bottom of the second pressure plate, and is interlocked with the second pressure plate, and each of the flattening members is away from one end of the second pressure plate. Features a press-fit surface. The automatic pressing mechanism according to claim 1, wherein the first pressing plate is provided with a plurality of through holes corresponding to the flattening members, and the flattening members are correspondingly slidably passed through the through holes. The automatic pressing mechanism according to claim 1, wherein a limiting unit is disposed between the working table and the first pressing plate, the limiting unit includes a stopping post and a flange can be opposite to the stopping post Top limit column. The automatic pressing mechanism according to claim 7, wherein the limiting post is fixed to the first pressing plate, and the stopping post is fixed to the working table and is opposite to the limiting post. The automatic pressing mechanism according to claim 1, wherein the second pressure plate is driven by a driving unit, and the driving unit may be any one of a punch, a cylinder or a hydraulic cylinder. A pressing method for pressing a jaw of a horn net to a casing by an automatic pressing mechanism, the automatic pressing mechanism comprising a working table, a first pressing plate, a second pressing plate, and a first pressing plate a plurality of curved members and a plurality of flattening members fixed to the second platen, wherein the first platen is movably attached to the second platen, and the flattening members are slidably passed through the first platen; The method comprises the steps of: (i) securing a housing pre-assembled with a horn mesh to the table, and causing the jaws to face the respective guide members; (ii) driving the second platen movement, The isotropic bending member bends the claws toward the housing, and when the claws are bent to a predetermined angle, the guiding members stop moving; (iii) the second pressing plate drives the flattening The member presses the bent jaws against the housing.