Assembling jig of hearing aid shell and automatic hearing aid assembling machine

Abstract

The utility model discloses a hearing aid casing assembling jig and a hearing aid automatic assembling machine, the hearing aid casing assembling jig comprises a limiting device, a preset channel and a pressing device, the limiting device is used for limiting a hearing aid casing at an assembling position; the preset channel is arranged right above a pin hole of the hearing aid shell under the assembly position and is used for pre-placing a pin needle; the pressing device is provided with an ejector pin, and the ejector pin is inserted into the preset channel so that the pin needle in the preset channel can be pressed into the pin hole of the hearing aid shell. According to the utility model, the preset channel is arranged to preplace the pin needle, and then the pin needle is pressed into the pin hole of the hearing aid shell which is limited at the assembly position by the limiting device by virtue of the press-fit device, so that the surface of the hearing aid can be prevented from being scratched by the metal pin needle, and the appearance quality of the hearing aid is greatly improved; the press-in angle of the pin can be guided, and damage to internal important components of the hearing aid caused by dislocation of the pin in the press-in process is avoided.

Description

Technical Field

[0001] The utility model relates to the field of hearing aids, in particular to an assembly fixture for a hearing aid housing and an automatic hearing aid assembly machine. Background Art

[0002] A hearing aid is assembled by a housing and components wrapped inside the housing, and the housing is used to protect the internal components. Most of the commonly used hearing aid housings on the market are composed of an upper housing and a lower housing, and the upper housing and the lower housing are fixed by metal pins. During the assembly process of the hearing aid, generally, an operator uses tweezers to pick up a metal pin and then inserts the metal pin into the pin hole of the housing to fix the upper and lower housings.

[0003] During the process of inserting the pin, if the angle or force of the operator inserting the pin is not properly controlled, resulting in inaccurate insertion position of the pin, it may damage the internal structure of the hearing aid (such as key components like a microphone and a receiver), leading to a decline or failure in the performance of the hearing aid. At the same time, during the process of manually using tweezers to pick up the pin and align it with the pin hole of the hearing aid housing, due to the small size of the pin, the end of the pin is easily scratched on the surface of the hearing aid housing, affecting the appearance of the product. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an assembly fixture for a hearing aid and an automatic hearing aid assembly machine that are easy to assemble, have a high yield rate, and are safe.

[0005] To achieve the above purpose, a first aspect of the utility model provides an assembly fixture for a hearing aid housing, which is used for the insertion and assembly of a pin into a pin hole on the hearing aid housing, and includes:

[0006] A limiting device, which is used to limit the hearing aid housing in the assembly position;

[0007] A preset channel, which is arranged directly above the pin hole of the hearing aid housing in the assembly position and is used for pre-placing the pin;

[0008] A presser, which has a thimble, and the thimble is inserted into the preset channel to press the pin in the preset channel into the pin hole of the hearing aid housing.

[0009] Preferably, the limiting device includes a limiting box, the limiting box includes a top cover and a base that are movably connected, the top cover and the base are joined to form a limiting cavity whose shape is adapted to the outer shape of the hearing aid housing, the preset channel is arranged on the top cover, and the preset channel penetrates from the surface of the top cover to the limiting cavity.

[0010] Preferably, the port of the preset channel on the top cover is a tapered structure that gradually expands.

[0011] Preferably, it further comprises a bearing platform, and the limiting device further comprises a limiting groove of a limiting box arranged on the bearing platform.

[0012] Preferably, two pin holes on the hearing aid housing are provided with left and right intervals, and two preset channels on the limit box are provided with left and right intervals corresponding to the two pin holes, namely a left preset channel and a right preset channel, and two pressers are also provided with left and right intervals, namely a left presser and a right presser. The limit groove is a slide groove extending in the left and right directions, and the limit box is slidably fitted in the limit groove. The left and right ends of the limit groove limit the left and right extreme positions of the limit box. The left preset channel on the limit box at the left extreme position is opposite to the ejector pin of the left presser, and the right preset channel on the limit box at the right extreme position is opposite to the ejector pin of the right presser.

[0013] Preferably, the press fitter is fixedly connected to the bearing platform via a support frame.

[0014] Preferably, the press fitter comprises a manual drive structure, which is transmission-connected to the ejector pin so that the ejector pin has a pressing stroke of approaching or moving away from the pin hole of the hearing aid housing in the assembly position.

[0015] Preferably, the press comprises a bracket, a rocker arm, a connecting rod, a sliding sleeve, a sliding rod and a ejector pin. The bracket is fixedly arranged, the sliding sleeve is fixedly connected to the bracket, the sliding rod is slidably connected to the sliding sleeve, the rocker arm as the manual driving structure is rotatably connected to the bracket, the two ends of the connecting rod are respectively rotatably connected to the rocker arm and the sliding rod, and the ejector pin is fixedly connected to the sliding rod.

[0016] The second aspect of the present invention provides an automatic hearing aid assembly machine, comprising the assembly jig of the hearing aid housing provided in the first aspect of the present invention, and also comprising an automatic hearing aid housing pick-up and placement device, an automatic press fitter driving structure, and an automatic pin pick-up and placement device. The automatic hearing aid housing pick-up and placement device realizes the pick-up and placement of the hearing aid housing, the automatic press fitter driving structure realizes the action drive of the press fitter, and the automatic pin pick-up and placement device realizes the pick-up and placement of the pin.

[0017] The beneficial effects of the utility model are as follows:

[0018] (1) The utility model sets a preset channel to pre-place the pin, and then uses a press fitter to press the pin into the pin hole of the hearing aid housing that is limited in the assembly position by the limiting device. Firstly, it can prevent the surface of the hearing aid from being scratched by the metal pin, which greatly improves the appearance quality of the hearing aid. At the same time, the preset channel serves as a guide channel to guide the pressing angle of the pin, thereby avoiding damage to important internal components of the hearing aid caused by misalignment of the pin during the pressing process.

[0019] (2) The present utility model also utilizes a hand-cranked presser, which can more easily control the force of inserting the pin, avoiding damage to important internal components of the hearing aid caused by excessive insertion force during the pin pressing process.

[0020] (3) The assembly fixture for the hearing aid housing proposed in the present utility model greatly improves the safety of the operator during the assembly process and avoids personal injury.

[0021] (4) The assembly fixture for the hearing aid housing proposed in the present utility model can also be applied to an automatic hearing aid assembly machine. As one of the links in the automatic assembly of hearing aids, it can automatically achieve the assembly of the hearing aid housing to further improve the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the hearing aid housing and the pin in the preferred embodiment of the present utility model;

[0023] Figure 2 It is a front view of the assembly fixture for the hearing aid housing in the preferred embodiment of the present utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the assembly fixture for the hearing aid housing in the preferred embodiment of the present utility model;

[0025] Figure 4 It is an exploded view of the structure of the limit box (angle one) in the preferred embodiment of the present utility model;

[0026] Figure 5 It is an exploded view of the structure of the limit box (angle two) in the preferred embodiment of the present utility model.

[0027] Figure 6 It is a sectional view of the limit box in the preferred embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in the field or according to the product specifications.

[0029] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0030] Refer to Figures 1-6As shown, as a preferred embodiment of the present utility model, the assembly jig for the hearing aid housing proposed in the present utility model is used for the assembly of the hearing aid housing 100. The hearing aid housing 100 has upper and lower housing parts, and the two housing parts are fixed by the pin connection of the pin holes 101 and the pins 102. The assembly jig for the hearing aid housing in this embodiment is used for the insertion assembly of the pin 102 into the pin hole 101. Specifically, the assembly jig for the hearing aid housing includes a limiting device and a preset channel 5. The limiting device is used to limit the hearing aid housing 100 in the assembly position. The hearing aid housing 100 in the assembly position is limited and fixed, and the pin hole 101 of the hearing aid housing 100 faces upward. The preset channel 5 is arranged directly above the pin hole 101 of the hearing aid housing 100 in the assembly position for pre-placing the pin 102.

[0031] Specifically, in this embodiment, the limiting device includes a limiting box 1. The limiting box 1 includes a top cover 11 and a base 12. The top cover 11 and the base 12 are rotatably connected, so the top cover 11 can be opened or closed relative to the base 12. First limiting half-cavities 131 and second limiting half-cavities 132 are respectively arranged on the base 12 and the top cover 11. When the top cover 11 rotates and closes relative to the base, the top cover 11 and the base 12 are joined together, and the first limiting half-cavity 131 and the second limiting half-cavity 132 combine to form a limiting cavity 13 whose shape is adapted to the outer shape of the hearing aid housing 100. By opening the top cover 11, the hearing aid housing 100 can be taken out or put in, and the hearing aid housing 100 limited by the limiting cavity 13 is in the posture with the pin hole 101 facing upward. In addition to the rotatable connection, the top cover 11 and the base 12 can also adopt other connection forms, such as detachable snap connection, as long as the two are detachably joined together.

[0032] The preset channel 5 is arranged on the top cover 11. When the top cover 11 and the base 12 are joined together, the preset channel 5 penetrates from the surface of the top cover 11 to the limiting cavity 13 and corresponds to the position of the pin hole 101 of the hearing aid housing 100. When assembling the pin 102, first put the hearing aid housing 100 into the limiting box 1, then put the pin 102 into the preset channel 5, and finally press the pin 102 from the preset channel 5 into the pin hole 101. Through the above settings, first, it can avoid the surface of the hearing aid being scratched by the pin 102 during the process of manually picking up and moving the pin 102, greatly improving the appearance quality of the hearing aid. At the same time, the preset channel 5, as a guiding channel, can guide the pressing angle of the pin 102 and avoid the damage of important internal components of the hearing aid caused by misalignment during the pressing process of the pin 102. For the operation of pressing the pin 102 from the preset channel 5 into the pin hole 101, a pressing device, such as a awl, can be used.

[0033] In this embodiment, since the pin is relatively thin, the preset channel 5 is set to be a tapered structure that gradually expands at the port 51 of the top cover 11, so that the pin 102 can be placed in the preset channel 5 more accurately and quickly, avoiding the pin 102 from falling or flying out during manual operation.

[0034] In other embodiments, the limiting device and the preset channel 5 can also adopt other solutions. For example, the limiting device is replaced by a clamp seat for clamping and fixing the hearing aid housing 100. At this time, the preset channel 5 can be replaced by being fixedly arranged above the clamping position of the clamp seat. For example, a fixing plate is arranged above the clamping position of the clamp seat, and the preset channel 5 is arranged on the fixing plate and is aligned with the pin hole 101 of the hearing aid housing 100. Or, the fixing plate and the preset channel 5 can also be fixedly connected to the clamp seat. When the clamp seat is in the clamping position, the preset channel 5 also moves to directly above the pin hole 101 of the hearing aid housing 100. In this embodiment, the use of the limiting box 1 can avoid possible damage to the hearing aid housing 100 when it is clamped. At the same time, the preset channel 5 can be integrated on the limiting box 1, simplifying the mechanism of the assembly jig and making the volume of the limiting device smaller.

[0035] For the operation of pressing the pin 102 from the preset channel 5 into the pin hole 101, this embodiment uses a hand-cranked press 2 to achieve it. The press 2 includes a bracket 21, a rocker arm 23, a connecting rod 26, a sliding sleeve 24, a sliding rod 25, and a thimble 22. The bracket 21 is fixedly arranged, the sliding sleeve 24 is fixedly connected to the bracket 21, the sliding rod 25 is slidably connected to the sliding sleeve 24, the rocker arm 23 is rotatably connected to the bracket 21, both ends of the connecting rod 26 are rotatably connected to the rocker arm 23 and the sliding rod 25 respectively, and the thimble 22 is fixedly connected to the sliding rod 25. When the hearing aid housing 100 is in the assembly position, manually shake the rocker arm 23 to drive the sliding rod 25 to slide in the sliding sleeve 24, so that the thimble 22 slides closer to or away from the preset channel 5, and the pin 102 in the preset channel 5 is pressed into the pin hole 101 by inserting the thimble 22 into the preset channel 5. Using this hand-cranked press 2 is more labor-saving than using a awl, and it is easier to control the force, avoiding damage to important internal components of the hearing aid due to too large an insertion force during the process of pressing the pin 102. Further, in other embodiments, the press 2 can also be replaced by an automatic press, such as a press that can move in the up and down direction driven by a cylinder.

[0036] The assembly fixture further includes a bearing platform 3, and the presser 2 is fixedly connected to the bearing platform 3 through a support frame 6. The limiting device further includes a limiting groove 4 provided on the bearing platform 3 for limiting the limiting box 1. After the limiting box 1 is placed in the limiting groove 4, the preset channel 5 on the limiting box 1 limited by the limiting groove 4 can be aligned with the ejector pin 22 of the presser 2. The limiting device and the presser 2 are positioned relative to each other through the bearing platform 3, facilitating the assembly of the hearing aid housing at the assembly position.

[0037] In this embodiment, there are two pin holes 101 on the hearing aid housing 100 to be assembled, which are spaced left and right. There are two preset channels 5 on the limiting box 1 corresponding to the two pin holes 101 spaced left and right, namely a left preset channel and a right preset channel. The presser 2 also has two spaced left and right, namely a left presser and a right presser. The limiting groove 4 is a chute extending in the left-right direction, and the limiting box 1 is slidably fitted in the limiting groove 4. The left and right ends of the limiting groove 4 limit the left and right extreme positions of the limiting box 1. The left preset channel on the limiting box 1 at the left extreme position is aligned with the ejector pin 22 of the left presser, and the right preset channel on the limiting box 1 at the right extreme position is aligned with the ejector pin 22 of the right presser. The setting of the chute can directly limit the assembly position without manual alignment, saving operation. The limiting groove 4 can also be replaced by two independent and left-right disconnected grooves. After the limiting box 1 is assembled in one groove, it is taken out and placed in the other groove. However, this structure is not as convenient as directly sliding the limiting box 1 in the limiting groove 4 in this embodiment. If there is only one pin hole 101 on the hearing aid housing 100, only one limiting groove matching the shape of the limiting box 1 and one presser 2 are provided. When the number of pin holes in the same hearing aid housing is greater than 2, the limiting groove 4 is not set as a chute, but multiple independent limiting grooves adapted to the shape of the limiting box 1 are used to fix the limiting box 1 at the assembly position. The assembly fixture in this embodiment enables the pin 102 to be controllably and accurately pressed into the corresponding position of the hearing aid housing 100, avoiding the risks of scratching the surface of the hearing aid and damaging internal components caused by manual operation. At the same time, it can also prevent the pin 102 from flying out or popping out and causing harm to the operator during a long-term and high-intensity operation process.

[0038] The assembly fixture for the hearing aid housing of this embodiment can also be applied to the hearing aid automatic assembly machine. As one of the links in the automatic assembly of hearing aids, it can automatically achieve the assembly of the hearing aid housing to further improve the efficiency. The hearing aid automatic assembly machine can be provided with an automatic picking and placing device for the hearing aid housing, an automatic driving structure for the press, and an automatic picking and placing device for the pins. Among them, the automatic picking and placing device for the hearing aid housing realizes the picking and placing of the hearing aid housing, the automatic driving structure for the press realizes the action driving of the press, and the automatic picking and placing device for the pins realizes the picking and placing of the pins. The automatic picking and placing device for the hearing aid housing can be a manipulator, the press is driven by a motor or a cylinder, and the automatic picking and placing device for the pins can use a vacuum chuck to complete the automatic picking and placing of the pins. Such a setting can effectively reduce the labor cost, improve the yield rate and appearance quality, and accelerate the manufacturing efficiency.

[0039] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. An assembly jig for a hearing aid housing, used for inserting a pin into a pin hole on a hearing aid housing, characterized in that: include: A limiting device, the limiting device is used to limit the hearing aid housing in the assembly position, A preset channel, which is located just above the pin hole of the hearing aid housing in the assembly position and is used to pre-place the pin. The press fitter has a push pin which is inserted into the preset channel to press the pin in the preset channel into the pin hole of the hearing aid housing.

2. The assembly jig for the hearing aid housing according to claim 1, characterized in that: The limiting device includes a limiting box, which includes a top cover and a base that are movably connected. The top cover and the base are combined to form a limiting cavity whose shape is adapted to the outer shape of the hearing aid housing. The preset channel is arranged on the top cover, and the preset channel passes through the surface of the top cover to the limiting cavity.

3. The assembly jig for the hearing aid housing according to claim 2, characterized in that: The port of the preset channel at the top cover is a gradually expanding conical structure.

4. The assembly jig for the hearing aid housing according to claim 2, characterized in that: It also includes a bearing platform, and the limiting device also includes a limiting groove arranged on the bearing platform for limiting the limiting box.

5. The assembly jig for the hearing aid housing according to claim 4, characterized in that: There are two pin holes on the hearing aid housing spaced apart on the left and right, and two preset channels on the limit box are spaced apart on the left and right corresponding to the two pin holes, namely a left preset channel and a right preset channel. The presser is also provided with two pressers spaced apart on the left and right, namely a left presser and a right presser. The limit groove is a slide groove extending in the left and right directions, and the limit box is slidably fitted in the limit groove. The left and right ends of the limit groove limit the left and right extreme positions of the limit box. The left preset channel on the limit box at the left extreme position is opposite to the ejector pin of the left presser, and the right preset channel on the limit box at the right extreme position is opposite to the ejector pin of the right presser.

6. The assembly jig for the hearing aid housing according to claim 4, characterized in that: The press fitter is fixedly connected to the bearing platform through a supporting frame.

7. The assembly jig for the hearing aid housing according to claim 1, characterized in that: The press fitter comprises a manual driving structure which is transmission-connected to the ejector pin so that the ejector pin has a pressing stroke of approaching or moving away from the pin hole of the hearing aid housing at the assembly position.

8. The assembly jig for the hearing aid housing according to claim 7, characterized in that: The press comprises a bracket, a rocker arm, a connecting rod, a sliding sleeve, a sliding rod and a ejector pin. The bracket is fixedly arranged, the sliding sleeve is fixedly connected to the bracket, the sliding rod is slidably connected to the sliding sleeve, the rocker arm as the manual driving structure is rotatably connected to the bracket, the two ends of the connecting rod are rotatably connected to the rocker arm and the sliding rod respectively, and the ejector pin is fixedly connected to the sliding rod.

9. An automatic hearing aid assembly machine, characterized in that: An assembly jig for a hearing aid housing as claimed in any one of claims 1 to 8, further comprising an automatic pick-up and placement device for the hearing aid housing, an automatic drive structure for a press fitter and an automatic pick-up and placement device for a pin.

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