Earphone steel ring flatness detection jig

By designing a fixture for detecting the flatness of the earphone steel ring, automatic feeding and unloading are achieved. Combined with a laser sensor, the problem of low efficiency in traditional testing is solved, and the stability and efficiency of large-scale testing are improved.

CN223882915UActive Publication Date: 2026-02-06SHENZHEN YUTIAN PRECISE ELECTRONIC CO LTD
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Patent Information

Application Number
CN202520674838.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-06
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Traditional headphone steel ring flatness testing is inefficient and cannot meet the needs of large-volume testing, thus affecting production progress.

Method used

Design a fixture for testing the flatness of the steel ring of an earphone. It adopts automatic feeding and unloading functions, combined with a laser sensor, to realize automatic detection and manual confirmation of non-conforming products, thereby improving the stability and efficiency of the detection.

Benefits of technology

It achieves efficient detection of the flatness of the steel ring of headphones, adapts to the needs of large-scale testing, and improves the overall work efficiency and testing stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an earphone steel ring planeness detection jig, which relates to the technical field of steel ring processing and comprises a base, a material pushing support seat, a material receiving table and a detection assembly are sequentially arranged on the base from left to right, a material pushing assembly is mounted at the upper end of the material pushing support seat, and the detection assembly comprises an upper pressing plate and a lower pressing plate. A feeding concave part and a detection concave part are arranged on the upper surface of the lower pressing plate, the detection concave part is located below the upper pressing plate, a detection channel is formed between the detection concave part and the lower surface of the upper pressing plate, and the steel ring pushed by the pushing assembly slides into the detection channel after falling into the feeding concave part and falls into the receiving table after going out of the detection channel. The headphone steel ring flatness detection jig can automatically feed and discharge materials, is high in working efficiency, can meet the detection requirements of large-batch steel rings, and is high in overall operation stability and high in practicability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel ring processing technical field, concretely is a earphone steel ring flatness detection fixture. BACKGROUND

[0002] As a kind of shape error in form error, flatness has very important influence on the quality of product.In the production and manufacture process of earphone steel ring, flatness detection is a key quality control link: earphone steel ring is usually used as the supporting component of earphone shell or internal structure, needs to be closely matched with other precision components, and the flatness of earphone steel ring does not reach standard, possibly leading to assembly difficulty, poor sealing or affecting acoustic performance.

[0003] Traditional earphone steel ring flatness detection mode is that steel ring is placed in corresponding detection tool by artificial, if flatness is within the range of qualification, detection tool is opened, then steel ring is taken out and placed in storage box, so that the detection efficiency is low, when mass production is needed, it cannot meet the batch detection demand, and production and processing progress is affected. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a earphone steel ring flatness detection fixture, to solve the above technical problem, the utility model earphone steel ring flatness detection fixture can automatically feed and discharge, can adapt to the steel ring detection demand of large batch, and under the cooperation of laser inductor, improve overall detection stability, and then improve the efficiency of overall operation, and practicality is strong.

[0005] To achieve the above-mentioned purpose, the utility model realizes by the following technical scheme:

[0006] A kind of earphone steel ring flatness detection fixture, including base, the base is sequentially provided with push material support seat, receiving table and detection assembly from left to right direction, the upper end of push material support seat is installed with push material assembly, the detection assembly includes upper pressing plate and lower pressing plate, the upper pressing plate can be installed on lower pressing plate using assembly, the upper surface of lower pressing plate is equipped with feed recess and detection recess, the detection recess is below the upper pressing plate, and detection channel is formed between the detection recess and the lower surface of upper pressing plate, the steel ring pushed by push material assembly falls into feed recess and slides to detection channel, and after coming out through detection channel, it falls on receiving table.

[0007] Preferably, the detection assembly further includes detection support seat, the detection support seat is fixed on the base below, the upper end of detection support seat is equipped with inclined portion and stop position portion, the lower surface of lower pressing plate is connected with inclined portion, and the inclined portion is arranged downwardly from right to left direction.

[0008] Preferably, one side wall of the detection support seat is provided with a discharging block, and an inclined sliding end is arranged on the upper end of the discharging block.

[0009] Preferably, the detection assembly further comprises a laser sensor and a blocking seat, the right end of the blocking seat is connected with the detection support seat, the left end of the blocking seat is located above the material receiving table, and the laser sensor is installed on an outer side wall of the right end of the blocking seat.

[0010] Preferably, the blocking seat is sequentially provided with a material blocking part, a feeding hole and a mounting hole from left to right, the upper end of the detection support seat extends upwards through the mounting hole, the discharging block is located in the feeding hole, and the material blocking part is arranged to be inclined downwards from left to right.

[0011] Preferably, the blocking seat is provided with a laser perforation, and the sensing laser emitted by the laser sensor can irradiate into the feeding hole through the laser perforation.

[0012] Preferably, the material receiving table is provided with a guide column and a material receiving pad, the lower end of the guide column is connected with the material receiving table, the upper end of the guide column is located in the feeding hole, the material receiving pad is arranged on the guide column, and the lower surface of the material receiving pad is in contact with the upper surface of the material receiving table.

[0013] Preferably, the pushing assembly comprises a driving motor, a lead screw and a sliding support block, the driving motor is installed on an outer side of the pushing support seat, the output end of the driving motor is connected with the lead screw through a connecting piece, the sliding support block is movably arranged on the lead screw, the sliding support block is internally provided with a threaded hole matched with the lead screw, and the upper end of the sliding support block is further provided with a supporting recess.

[0014] Preferably, the pushing assembly further comprises a steel ring support for placing a steel ring, the left end of the steel ring support is connected with the pushing support seat through the supporting recess, the right end of the steel ring support is provided with a downwardly curved and inclined sliding material part, and the sliding material part is located above the feeding recess.

[0015] Preferably, the pushing assembly further comprises a supporting side plate and a lead screw support block, the left end of the supporting side plate is connected with the pushing support seat, the inner side of the supporting side plate is provided with a sliding groove, the end of the sliding support block away from the steel ring support is located in the sliding groove, the lead screw support block is installed on the supporting side plate, and the right end of the lead screw is connected with the lead screw support block through a connecting piece.

[0016] The earphone steel ring flatness detection jig has the following beneficial effects:

[0017] The utility model earphone steel ring flatness detection tool, by automatic feeding of pushing material subassembly, through detection subassembly detects the flatness, if the flatness is qualified and falls into the guide material column in the direction, if the flatness is unqualified and is taken out by artificial, work efficiency is high, can adapt to the steel ring detection demand of large quantities, and under the cooperation of laser inductor, improve the stability of whole detection operation, and then improve the efficiency of whole operation, the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole schematic diagram of earphone steel ring flatness detection tool of the utility model;

[0019] Figure 2 It is structure schematic diagram of detection subassembly and material receiving table of earphone steel ring flatness detection tool of the utility model;

[0020] Figure 3 It is structure schematic diagram of material receiving table, blocking seat and laser inductor of earphone steel ring flatness detection tool of the utility model;

[0021] Figure 4 It is structure schematic diagram of pushing material subassembly and pushing material support seat of earphone steel ring flatness detection tool of the utility model;

[0022] Reference numerals in the drawing are:

[0023] 1, base;2, pushing material support seat;3, material receiving table;4, upper pressing plate;5, lower pressing plate;6, feeding recess;7, detection recess;8, limiting recess;9, detection support seat;10, inclined portion;11, blocking portion;12, blanking block;13, sliding end portion;14, laser inductor;15, blocking seat;16, material blocking portion;17, feeding hole;18, mounting hole;19, laser perforation;20, guide material column;21, material receiving pad;22, plug-in hole;23, assembly plate;24, driving motor;25, lead screw;26, sliding support block;27, support recess;28, steel ring support;29, sliding material portion;30, limiting protrusion;31, support side plate;32, lead screw support block;33, sliding recess. DETAILED DESCRIPTION

[0024] In order to make personnel in the technical field better understand the technical scheme of the utility model, the utility model product is further explained in detail below in combination with examples and drawings.

[0025] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only and are not intended to limit the scope of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0027] As shown in Figure 1 and Figure 2 A headphone steel ring flatness detection jig, comprising a base 1, the base 1 is sequentially provided with a pushing support seat 2, a receiving table 3 and a detection assembly from left to right, a pushing assembly is installed at the upper end of the pushing support seat 2, the detection assembly comprises an upper pressing plate 4 and a lower pressing plate 5, the upper pressing plate 4 is detachably installed on the lower pressing plate 5, the upper surface of the lower pressing plate 5 is sequentially divided into an inlet recess 6 and a detection recess 7 from right to left, limit grooves 8 are arranged on both sides of the inlet recess 6 and the detection recess 7, the detection recess 7 is located below the upper pressing plate 4, and a detection channel is formed between the detection recess 7 and the lower surface of the upper pressing plate 4, the steel ring pushed by the pushing assembly falls into the inlet recess 6, slides into the detection channel, and falls onto the receiving table 3 after passing through the detection channel.

[0028] It should be noted that if the steel ring can smoothly pass through the detection channel, the flatness is qualified, and if it cannot pass through the detection channel, it is unqualified.

[0029] As shown in Figure 1 and Figure 2 The detection assembly further comprises a detection support seat 9, the detection support seat 9 is fixed on the lower base 1, an inclined part 10 and a blocking part 11 are arranged at the upper end of the detection support seat 9, the lower surface of the lower pressing plate 5 is connected with the inclined part 10, and the inclined part 10 is arranged downwardly inclined from right to left. The lower pressing plate 5 can be assembled on the detection support seat 9, which is convenient for installation and disassembly.

[0030] As shown in Figure 1 and Figure 2As shown, one side wall of the detection support base 9 is provided with a blanking block 12, and the upper end of the blanking block 12 is provided with an inclined sliding end portion 13 which is arranged downwardly and obliquely from right to left.

[0031] As shown, Figure 2 the detection assembly further comprises a laser sensor 14 and a blocking seat 15, the right end of the blocking seat 15 is detachably connected with the detection support base 9 through a fitting part, the left end of the blocking seat 15 is located above the receiving table 3, and the laser sensor 14 is detachably installed on an outer side wall of the right end of the blocking seat 15, and is detachably arranged to facilitate replacement and maintenance.

[0032] As shown, Figure 3 the blocking seat 15 is sequentially provided with a material blocking part 16, a feeding hole 17 and a mounting hole 18 from left to right, the upper end of the detection support base 9 extends upwardly through the mounting hole 18, the blanking block 12 is located in the feeding hole 17, and the material blocking part 16 is arranged downwardly and obliquely from left to right. The material blocking part 16 is beneficial to the placement of the steel ring falling out of the outside.

[0033] As shown, Figure 2 and Figure 3 the blocking seat 15 is provided with a laser perforation 19, and the sensing laser emitted by the laser sensor 14 can irradiate into the feeding hole 17 through the laser perforation 19. The laser sensor 14 of the embodiment is electrically connected with the driving motor 24.

[0034] It should be noted that the utility model can be used in cooperation with the corresponding production device, and can also be used alone. When the laser sensor 14 senses that a steel ring falls down, the driving motor 24 is excited to move, and a steel ring is pushed down by the driving motor 24. If the flatness of the steel ring is unqualified or there is no product sensing, at this time, the laser sensor 14 alarms, and it is confirmed by manual that the flatness of the steel ring is unqualified to cause the material blocking, or there is no material falling down above to cause no material, and then the defective product is taken out or the driving motor 24 is operated to feed material by manual.

[0035] As shown, Figure 2 and Figure 3 the receiving table 3 is provided with a guide column 20 and a receiving pad 21, the lower end of the guide column 20 is connected with the receiving table 3, the upper end of the guide column 20 is located in the feeding hole 17, the receiving pad 21 is arranged on the guide column 20, and the lower surface of the receiving pad 21 is in contact with the upper surface of the receiving table 3. The guide column 20 is used for receiving the steel ring with qualified flatness.

[0036] It should be noted that the receiving table 3 is provided with a plug-in hole 22, and the lower end of the guide column 20 is inserted into the plug-in hole 22 to be connected with the receiving table 3. The number of the plug-in hole 22 in the embodiment is one or more, so as to facilitate the adjustment of the position of the guide column 20.

[0037] As shown in Figure 2 , further comprising an assembly plate 23, the left end of the assembly plate 23 is detachably connected with the receiving table 3 through an assembly part, and the right end of the assembly plate 23 is detachably connected with the detection support base 9 through an assembly part. The assembly part of the embodiment can be a common fastening component such as a screw or a bolt.

[0038] As shown in Figure 4 , the pushing assembly comprises a driving motor 24, a lead screw 25 and a sliding support block 26, the driving motor 24 is installed on an outer side of the pushing support base 2, the output end of the driving motor 24 is connected with the lead screw 25 through a connecting part, the sliding support block 26 is movably arranged on the lead screw 25, the sliding support block 26 is internally provided with a threaded hole matched with the lead screw 25, and the upper end of the sliding support block 26 is further provided with a support recess 27. The driving motor 24 of the embodiment can be a servo motor.

[0039] As shown in Figure 4 , the pushing assembly further comprises a steel ring support 28 for placing a steel ring, the left end of the steel ring support 28 is tightly inserted into the pushing support base 2 through the support recess 27, and the steel ring support 28 is detachably connected with the pushing support base 2, and the right end of the steel ring support 28 is provided with a downwardly curved and inclined sliding material part 29, which is located above the feeding recess 6.

[0040] As shown in Figure 4 , the steel ring support 28 is further provided with a limiting protrusion 30, which is beneficial to the orderly movement of the steel ring to the sliding material part 29, and improves the stability of the overall operation.

[0041] It should be noted that the driving motor 24 drives the lead screw 25 to rotate, and under the cooperation of the lead screw 25 and the sliding support block 26, the sliding support block 26 can be synchronously driven to move along the lead screw 25, and the movement of the sliding support block 26 can drive the steel ring on the steel ring support 28 to move until the steel ring falls into the feeding recess 6.

[0042] As shown in Figure 4 , the pushing assembly further comprises a support side plate 31 and a lead screw support block 32, the left end of the support side plate 31 is connected with the pushing support base 2, the inner side of the support side plate 31 is provided with a sliding groove 33, the end of the sliding support block 26 away from the steel ring support 28 is located in the sliding groove 33, the lead screw support block 32 is installed on the support side plate 31, and the right end of the lead screw 25 is connected with the lead screw support block 32 through a connecting part. The connecting part of the embodiment can be a common shaft coupling or other conventional connecting component, so as to facilitate the stable operation of the lead screw 25 and the driving motor 24.

[0043] AsFigure 4 As shown, the sliding groove 33 is in a "T" shape, and the sliding support block 26 is in a "T" shape at one end away from the steel ring support 28, so that when the driving motor 24 drives the rotation of the screw rod 25, the sliding support block 26 can slide along the sliding groove 33.

[0044] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolution made by those skilled in the art within the scope of the technical scheme of the present application, using the disclosed technical content, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the technical scheme of the present application.

Claims

1. A fixture for testing the flatness of a steel ring in an earphone, characterized in that: The base (1) is provided with a pushing material support seat (2), a material receiving table (3) and a detection assembly from left to right, a pushing material assembly is installed at the upper end of the pushing material support seat (2), the detection assembly comprises an upper pressing plate (4) and a lower pressing plate (5), the upper surface of the lower pressing plate (5) is provided with an inlet recess (6) and a detection recess (7), the detection recess (7) is located below the upper pressing plate (4), and a detection channel is formed between the detection recess (7) and the lower surface of the upper pressing plate (4), the steel ring pushed by the pushing material assembly slides into the detection channel after falling into the inlet recess (6), and falls into the material receiving table (3) after passing through the detection channel.

2. The earphone steel ring flatness detection jig of claim 1, wherein: The detection assembly further comprises a detection support seat (9) fixed on the base (1) below, the upper end of the detection support seat (9) is provided with an inclined portion (10) and a blocking portion (11), the lower surface of the lower pressing plate (5) is connected with the inclined portion (10), and the inclined portion (10) is arranged downwardly from right to left.

3. The earphone steel ring flatness detection jig of claim 2, wherein: One side wall of the detection support seat (9) is provided with a discharging block (12), the upper end of the discharging block (12) is provided with an inclined sliding end portion (13), and the sliding end portion (13) is arranged downwardly from right to left.

4. The earphone steel ring flatness detection jig of claim 3, wherein: The detection assembly further comprises a laser sensor (14) and a blocking seat (15), the right end of the blocking seat (15) is connected with the detection support seat (9), the left end of the blocking seat (15) is located above the material receiving table (3), and the laser sensor (14) is installed on an outer side wall of the right end of the blocking seat (15).

5. The earphone steel ring flatness detection jig according to claim 4, wherein: The blocking seat (15) is provided with a material blocking portion (16), an inlet hole (17) and a mounting hole (18) from left to right, the upper end of the detection support seat (9) extends upwardly through the mounting hole (18), the discharging block (12) is located in the inlet hole (17), and the material blocking portion (16) is arranged downwardly from left to right.

6. The earphone steel ring flatness detection jig of claim 5, wherein: The blocking seat (15) is provided with a laser perforation (19), and the sensing laser emitted by the laser sensor (14) can irradiate the steel ring in the inlet hole (17) through the laser perforation (19).

7. The earphone steel ring flatness detection jig according to claim 6, wherein: The material receiving table (3) is provided with a guide column (20) and a material receiving pad (21), the lower end of the guide column (20) is connected with the material receiving table (3), the upper end of the guide column (20) is located in the inlet hole (17), the material receiving pad (21) is arranged on the guide column (20), and the lower surface of the material receiving pad (21) is in contact with the upper surface of the material receiving table (3).

8. The earphone steel ring flatness detection jig according to claim 1, wherein: The pushing material assembly comprises a driving motor (24), a lead screw (25) and a sliding support block (26), the driving motor (24) is installed on an outer side of the pushing material support seat (2), the output end of the driving motor (24) is connected with the lead screw (25) through a connecting piece, the sliding support block (26) is movably arranged on the lead screw (25), the sliding support block (26) is provided with a threaded hole matched with the lead screw (25) in the sliding support block (26), and the upper end of the sliding support block (26) is further provided with a supporting recess (27).

9. The earphone steel ring flatness detection jig according to claim 8, wherein: The pushing assembly further comprises a steel ring support (28) for placing the steel ring, the left end of the steel ring support (28) is connected with the pushing support base (2) through the support recess (27), and the right end of the steel ring support (28) is provided with a downwardly curved and inclined sliding part (29), and the sliding part (29) is located above the feeding recess (6).

10. The earphone steel ring flatness detection jig of claim 9, wherein: The pushing assembly further comprises a support side plate (31) and a screw rod support block (32), the left end of the support side plate (31) is connected with the pushing support base (2), the inner side of the support side plate (31) is provided with a sliding groove (33), the end of the sliding support block (26) away from the steel ring support (28) is located in the sliding groove (33), and the screw rod support block (32) is installed on the support side plate (31), and the right end of the screw rod (25) is connected with the screw rod support block (32) through a connecting piece.