Drawing jig

Abstract

The utility model discloses a drawing jig. The drawing jig comprises a base; the clamping structure at least comprises a first clamping plate and a second clamping plate which can move oppositely or oppositely, a first notch is formed in the side portion, facing the second clamping plate, of the first clamping plate, and a second notch is formed in the position, corresponding to the first notch, of the side portion of the second clamping plate; the drawing assembly is arranged on the base and used for pulling out the nylon rod in the ear hook clamped by the first clamping plate and the second clamping plate; according to the nylon rod separating device, the problems that in traditional nylon rod separating equipment, generally, a nylon rod is manually clamped to be separated from an ear hook, but due to uneven manual force application, the ear hook can be possibly deformed, and the separating efficiency is low can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bluetooth headset, concretely relates to a drawing fixture. BACKGROUND

[0002] With the popularity of bluetooth headset, as the core component of wearing stability, the production process of ear hook puts forward higher requirements for the assembly and disassembly of nylon rod (flexible support framework). The traditional nylon rod separation equipment generally separates the nylon rod from the ear hook by artificial clamping, but due to uneven human force, the ear hook may be deformed, and there is the problem of low separation efficiency. UTILITY MODEL CONTENTS

[0003] In order to overcome the above-mentioned shortcomings, the utility model discloses a drawing fixture.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme including: base; clamping structure, at least including first clamping plate and second clamping plate that can move towards or away from each other, the first clamping plate is opened with first gap on the side towards the second clamping plate, the second clamping plate side is opened with second gap corresponding to the first gap, drawing assembly, is arranged in the base, is used for drawing out the nylon rod in the ear hook clamped by the first clamping plate and second clamping plate.

[0005] In the preferred technical scheme of the above drawing fixture, the drawing assembly at least includes a drive cylinder arranged on the base and a clamping jaw cylinder arranged on the extension shaft end of the drive cylinder.

[0006] In the preferred technical scheme of the above drawing fixture, the base is arranged with a motor, the rotating shaft end of the motor is installed with a bidirectional screw rod, the first clamping plate is installed on the forward thread of the bidirectional screw rod, and the second clamping plate is installed on the reverse thread of the bidirectional screw rod.

[0007] In the preferred technical scheme of the above drawing fixture, the first gap and the second gap are both installed with rubber airbags.

[0008] In the preferred technical scheme of the above drawing fixture, the rubber airbag is internally arranged with an elastic metal wire.

[0009] In the preferred technical scheme of the above drawing fixture, the inner wall of the clamping jaw of the clamping jaw cylinder is provided with a sawtooth structure.

[0010] In the preferred technical scheme of the above drawing fixture, the base is internally arranged with a waste box that can be pulled out and removed from the base, the part between the clamping structure and the drawing assembly of the base is opened with a waste port, and the waste port is located directly above the waste box.

[0011] The utility model discloses an ear hook fixing device, which comprises a base, a first clamping plate, a second clamping plate, a driving cylinder, a clamping jaw cylinder and a motor. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model Figure 1 ;

[0013] Figure 2 It is the front view of the utility model Figure 2 ;

[0014] Figure 3 It is the front view of the utility model

[0015] In the drawing: base 1, waste port 11, first clamping plate 21, first gap 211, second clamping plate 22, second gap 221, ear hook 3, driving cylinder 41, clamping jaw cylinder 42, motor 5, bidirectional screw rod 6, rubber air bag 7, waste box 8. DETAILED DESCRIPTION

[0016] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0017] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "front", "back" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "providing", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0019] For example Figures 1 to 3As shown, the drawing fixture of the utility model includes: base 1;Clamping structure, at least including first clamping plate 21 and second clamping plate 22 that can move towards or away, first clamping plate 21 is opened with first gap 211 on the side towards second clamping plate 22, and second clamping plate 22 is opened with second gap 221 at the side corresponding to first gap 211;Drawing assembly, is located in base 1, is used to pull out the nylon stick in the ear hook 3 clamped by first clamping plate 21 and second clamping plate 22.

[0020] Referring to Figures 1 to 3 , the ear hook 3 of Bluetooth headset needs to take out the nylon stick installed inside when producing;Base 1 is provided with clamping structure for clamping the ear hook 3 of Bluetooth headset, and is also provided with drawing assembly for clamping and taking the nylon stick in ear hook 3;Among them, the clamping structure at least includes first clamping plate 21 and second clamping plate 22, first clamping plate 21 is opened with first gap 211 above the side towards second clamping plate 22, second clamping plate 22 is opened with second gap 221 above the side towards first clamping plate 21, first gap 211 and second gap 221 are correspondingly arranged and are arc-shaped structure, first clamping plate 21 and second clamping plate 22 can move towards to clamp the ear hook 3 placed in first gap 211 and second gap 221, or, move away to release the clamping of ear hook 3.

[0021] Specifically, when pulling out the nylon stick in ear hook 3, first control first clamping plate 21 and second clamping plate 22 move towards, so that first gap 211 and second gap 221 clamp ear hook 3 together, and the end of ear hook 3 with nylon stick is towards drawing assembly, then the nylon stick that stretches out of ear hook 3 by drawing assembly clamping part, then the nylon stick is pulled out of ear hook 3 by drawing assembly moving away from ear hook 3, the separation of ear hook 3 and nylon stick is completed, which has the characteristics of simple structure, convenient operation and practicality;After the separation of ear hook 3 and nylon stick is completed, control first clamping plate 21 and second clamping plate 22 to move away from each other to release the clamping of ear hook 3.

[0022] In one or more embodiments, the drawing assembly at least includes drive cylinder 41 arranged on base 1 and clamping jaw cylinder 42 arranged on the extension shaft end of drive cylinder 41.

[0023] Referring to Figure 1 、 Figure 2The clamping jaw cylinder 42 has two groups of clamping jaws which can move towards or away from each other; specifically, when the ear hook 3 is separated from the nylon rod, first, the two clamping jaws of the clamping jaw cylinder 42 are separated, then the driving cylinder 41 controls the clamping jaw cylinder 42 to move towards the ear hook 3, and then the two clamping jaws of the clamping jaw cylinder 42 clamp the nylon rod extending out of the ear hook 3, after that, the driving cylinder 41 controls the clamping jaw cylinder 42 to retract, so that the nylon rod is pulled out of the ear hook 3, realizing the automatic separation of the nylon rod and the ear hook 3, and having the characteristics of high automation degree and high separation efficiency of the nylon rod and the ear hook 3.

[0024] In one or more embodiments, a motor 5 is arranged on the base 1, and a double screw rod 6 is arranged at the rotating shaft end of the motor 5, a first clamping plate 21 is arranged on the forward thread of the double screw rod 6, and a second clamping plate 22 is arranged on the reverse thread of the double screw rod 6.

[0025] Referring to Figures 1 to 3 , a first screw hole is arranged on the first clamping plate 21, a second screw hole is arranged on the second clamping plate 22, the forward thread of the double screw rod 6 is matched with the thread in the first screw hole, and the reverse thread of the double screw rod 6 is matched with the thread in the second screw hole, so that the first clamping plate 21 and the second clamping plate 22 can move towards or away from each other by controlling the double screw rod 6 to rotate forward or reverse by the motor 5, having the characteristics of simple structure and convenient operation, and having practicality.

[0026] In other possible embodiments, a first cylinder and a second cylinder are arranged on the base 1, the extending shaft end of the first cylinder is connected with the side of the first clamping plate 21, and the extending shaft end of the second cylinder is connected with the side of the second clamping plate 22; the first cylinder can push the first clamping plate 21 to move towards the second clamping plate 22, and the second cylinder can push the second clamping plate 22 to move towards the first clamping plate 21, so as to clamp the ear hook 3.

[0027] In one or more embodiments, a rubber air bag 7 is arranged in each of the first notch 211 and the second notch 221.

[0028] Referring to Figure 3 , the rubber air bag 7 arranged in the first notch 211 is matched with the shape of the first notch 211, and the rubber air bag 7 arranged in the second notch 221 is matched with the shape of the second notch 221; through this arrangement, the ear hook 3 can be clamped and fixed, and the problem of wear of the ear hook 3 can be reduced, so as to ensure the production quality and aesthetic level of the ear hook 3.

[0029] In one or more embodiments, the rubber air bag 7 is internally configured with elastic wires. It should be noted that the elastic wires configured inside the rubber air bag 7 can assist the rubber air bag 7 to rebound, so as to prolong the service life of the elastic air bag; in addition, through the arrangement, the strength of the rubber air bag 7 can be improved, and the clamping and fixing effect of the ear hook 3 by the application can be ensured.

[0030] In one or more embodiments, the clamping jaw cylinder 42 has a clamping jaw inner wall provided with a sawtooth structure.

[0031] Referring to Figure 1 , Figure 2 , the two clamping jaws of the clamping jaw cylinder 42 are both provided with a sawtooth structure on the opposite side surface; through the arrangement, the friction between the clamping jaw and the nylon rod can be improved, so that the nylon rod can be smoothly clamped and withdrawn from the ear hook 3.

[0032] In one or more embodiments, the base 1 is internally configured with a waste box 8 which can be pulled out of the base 1, and the base 1 is provided with a waste port 11 between the clamping structure and the pulling assembly, and the waste port 11 is located directly above the waste box 8.

[0033] Referring to Figure 1 , Figure 2 Figure 1 Figure 2 Figure 1 Figure 2 Figure 1 Figure 2 Figure 1 Figure 2 Figure 1 Figure , when the clamping jaw cylinder 42 pulls out the nylon rod from the ear hook 3, the nylon rod is located above the waste port 11, at this time, only the two sets of clamping jaws are controlled to be separated, so that the nylon rod falls into the waste box 8 through the waste port 11 under the action of gravity; when the nylon rods collected in the waste box 8 reach a predetermined number, the waste box 8 can be pulled out of the base 1 and the nylon rods inside the waste box 8 can be poured out.

[0034] The above embodiments are only for illustrating the technical concept and characteristics of the application, the purpose is to let the person skilled in the art understand the content of the application and implement it, and it cannot limit the protection scope of the application, any equivalent changes or modifications made according to the spirit and essence of the application should be covered within the protection scope of the application.

Claims

1. A drawing jig characterized by comprising: The utility model relates to a ear hanging device, including: a base; a clamping structure, at least including first clamping plate and second clamping plate can move towards or opposite, first clamping plate is opened with first gap on the side towards second clamping plate, second clamping plate side is opened with second gap corresponding to first gap; pulling assembly is located in the base, is used for pulling out nylon stick in the ear hanging that first clamping plate and second clamping plate clamped.

2. The draw jig of claim 1, wherein: The pulling assembly at least includes the drive cylinder arranged in the base and the clamping jaw cylinder arranged in the drive cylinder extension shaft end.

3. The draw jig of claim 1, wherein: The base is equipped with motor, and the rotating shaft end of the motor is equipped with bidirectional screw rod, the first clamping plate is installed on the positive thread of bidirectional screw rod, and the second clamping plate is installed on the reverse thread of bidirectional screw rod.

4. The draw jig of claim 3, wherein: The first gap and second gap are all installed with rubber air bag.

5. The draw jig of claim 4, wherein: The inside of the rubber air bag is equipped with elastic wire.

6. The draw jig of claim 2, wherein: The clamping jaw cylinder has the sawtooth structure in the inner wall of clamping jaw.

7. The draw jig of claim 1, wherein: The inside of the base is equipped with the scrap box that can be pulled and removed in the base, and the part between the clamping structure and pulling assembly of the base is opened with scrap port, and the scrap port is located directly above the scrap box.

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