CN210579242U

CN210579242U - Headset support arm sliding force and service life testing machine

Info

Publication number: CN210579242U
Application number: CN201922190557.7U
Authority: CN
Inventors: 章建军
Original assignee: Shenzhen Tops Electronic Co ltd
Current assignee: Shenzhen Tops Electronic Co ltd; Top Effort Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-05-19
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a headphone support arm sliding force and life-span testing machine relates to the earphone field, and its technical scheme main points are including the frame, rotate connect in the objective table of frame, install on the objective table and be used for the headset anchor clamps of centre gripping headset support arm, install in the frame and be used for the top of centre gripping top band support arm to take anchor clamps and install in the frame and drive objective table pivoted power supply, headset anchor clamps centre gripping headset support arm rotates around the objective table, and its technological effect is that people have simulated the action of inserting to pulling out of headset support arm in the reality better for the test result is more accurate.

Description

Headset support arm sliding force and service life testing machine

Technical Field

The utility model relates to an earphone test field, in particular to headphone support arm sliding force and life-span testing machine.

Background

The earphone is the electronic product that people often used in life, is equipped with the recess in the top band support arm of earphone, and the one end of the headset support arm in the earphone is inlayed and is located in this recess and this recess sliding connection, and the maximum number of times of inserting of pulling out between the headset support arm of earphone and the top band support arm has decided the life of earphone, and the enterprise generally all need carry out the sampling test to the maximum number of times of inserting of the sliding force between the headset support arm of earphone and the top band support arm at the in-process of production earphone.

At present, chinese patent publication No. CN107770711A discloses a headset headband sliding life testing machine, which includes a frame, a movable clamp for fixing a headset, and a fixed clamp for fixing a headband, wherein the movable clamp and the fixed clamp are respectively fixed at two ends of the frame, the movable clamp includes a piston cylinder and a clamping device, the piston cylinder drives the clamping device to make a telescopic reciprocating motion towards the fixed clamp until the headset headband sliding region is damaged, and the number of times of reciprocating motion of the clamping device is recorded by a counter, thereby detecting the life of the headset headband.

Although the earphone head band sliding life tester can measure the life of the earphone, the earphone structure is that the earphone headset arm is not connected with the top band arm in a sliding mode through straight plugging, but is plugged in a rotating mode with a certain point as a circle center. The testing machine of the comparison file is used for testing the earphone through straight line plugging, and can cause continuous friction between the headset supporting arm and the side wall of the groove on the top belt supporting arm, so that the service life of the headset is shortened, and test data is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a headphone support arm sliding force and life-span testing machine, it has simulated the action of inserting of pulling out of people to the headset support arm in reality better for the test result is more accurate.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a headset boom sliding force and life test machine, comprising:

a frame;

the object stage is rotatably connected to the rack;

the headset clamp is arranged on the objective table and used for clamping the headset support arm;

the top belt clamp is arranged on the rack and used for clamping the top belt support arm; and

the power supply, the power supply is installed in the frame and is driven the objective table and rotate, headset anchor clamps centre gripping headset support arm rotates around the objective table.

Through adopting above-mentioned technical scheme, headset anchor clamps will headset support arm centre gripping and fix on the objective table, and top area anchor clamps centre gripping top area support arm, objective table are encircleed by the earphone, and the objective table drives headset anchor clamps under the drive of power supply and takes place to rotate, and the headset support arm revolves the rotation center and rotates to realize pulling out in the top area recess and inserting. Compared with the prior art, the headset support arm plugging and unplugging device better simulates the plugging and unplugging actions of people on the headset support arm in reality, so that the test result is more accurate.

Further setting: the top band clamp includes:

the supporting frame is bolted to the rack, and a supporting groove is formed in the top of the supporting frame;

the clamping blocks are arranged in the supporting grooves, and the side walls of the clamping blocks and the supporting grooves are matched with each other to form clamping gaps for accommodating the top belts; and

the pushing piece is arranged on the side wall of the supporting groove and abutted against the clamping block, and the pushing piece pushes the clamping block to slide towards the side wall of the supporting groove so as to reduce a clamping gap, so that the clamping block clamps and fixes the top belt on the supporting frame.

By adopting the technical scheme, the pushing piece can conveniently adjust the position of the clamping block, so that the top belt is conveniently clamped in the clamping gap.

Further setting: the pushing piece is a top belt adjusting bolt, the top belt adjusting bolt penetrates through the side wall of the supporting groove and is in threaded connection with the side wall of the supporting groove, and one end of the top belt adjusting bolt in the supporting groove abuts against the clamping block.

Through adopting above-mentioned technical scheme, top belt adjusting bolt can be through the lateral wall of twist or back-out support recess to can conveniently adjust the width in centre gripping gap.

Further setting: the lateral wall that the clamp splice deviates from the roof area adjusting bolt is the cambered surface with roof area lateral surface looks adaptation, the lateral wall that supports the recess and keeps away from the roof area adjusting bolt is the cambered surface with roof area medial surface looks adaptation.

Through adopting above-mentioned technical scheme, because the apical band itself sets up for the arc, the centre gripping gap that two cambered surfaces mutually supported and form can compare in two dull and stereotyped centre grippings with the shape looks adaptation in apical band, can support rather than the line with apical band formation face, agrees with more with the apical band to make the centre gripping of apical band more firm.

Further setting: the power supply is servo motor, servo motor's axis of rotation and the bottom fixed connection of objective table set up in the rotation center pin department of headset support arm.

By adopting the technical scheme, the servo motor is used as an actuating element in an automatic control system, and the received electric signal is converted into angular displacement or angular speed on the motor shaft to be output, so that the moving distance of the movable clamping plate can be accurately controlled. In addition, servo motor's axis of rotation and the bottom fixed connection of objective table set up in the rotation center pin department of headset support arm for headset support arm can be along seting up the direction of taking the recess to roll out, and the action of inserting and pulling out when having simulated the normal use earphone has reduced the friction between headset support arm and the top band recess, makes the test more accurate.

Further setting: the rack is provided with a plurality of pairs of threaded through holes in the direction away from the object stage, and the support frame is bolted to one pair of threaded through holes to be fixed on the rack.

Through adopting above-mentioned technical scheme, because the earphone of different models has different sizes for the turning radius of headset support arm changes, through selecting corresponding screw through-hole, the position of adjustment carriage in the frame makes the rotation center pin of headset support arm and servo motor's axis coincidence, can make the headset support arm smoothly pull out at the top band recess and insert, makes the test more accurate.

Further setting: the headset anchor clamps include:

the torsion sensor is connected to the objective table and used for measuring the sliding force borne by the headset clamp when the objective table rotates;

the two fixed clamping plates are oppositely arranged and fixedly arranged at the top of the torque sensor; and

and the fastener is arranged on one of the fixed clamping plates and is used for abutting the headset support arm against the other fixed clamping plate.

Through adopting above-mentioned technical scheme, the torque connector sets up on the objective table, when the objective table is at the uniform velocity when rotating, can apply a torsion for torque sensor to order about torque sensor and take place to rotate, torque sensor drives headset anchor clamps through rotating and pulls out and insert the headset support arm, and the sliding force of headset support arm in the top band recess is the size of torsion promptly. The torque sensor can measure the torque and convert the torque into an electric signal to be output.

Further setting: the fastener is headset adjusting bolt, headset adjusting bolt wears to locate on the solid fixed splint and with this solid fixed splint threaded connection, headset adjusting bolt is through the screw in or screw out solid fixed splint in order to fix or release the headset support arm.

By adopting the technical scheme, the headset adjusting bolt can be screwed in or out of the fixed clamping plate, so that the headset supporting arm is abutted against or released from the opposite fixed clamping plate.

To sum up, the utility model discloses following beneficial effect has:

1. the plugging and unplugging actions of people on the headset supporting arm in reality are better simulated, so that the test result is more accurate;

2. the clamping is more stable, and the test result is prevented from being influenced by the relative sliding of the earphone and the support frame during the test;

3. can adapt to earphones of various different specifications and has wide application range.

Drawings

Fig. 1 is an overall schematic diagram of a headset arm sliding force and life tester according to an embodiment of the invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic structural diagram of the earphone in the present embodiment.

In the figure, the position of the upper end of the main shaft,

1. a frame; 11. a threaded through hole;

2. a belt jacking clamp; 21. a support frame; 211. a support groove; 212. clamping the gap; 213. a cambered surface; 22. a clamping block; 23. a pusher member; 230. a top belt adjusting bolt;

3. a headset clamp; 31. a torque sensor; 32. fixing the clamping plate; 33. a fastener; 34. a headset adjusting bolt;

4. an object stage;

5. an earphone; 51. a top belt; 52. carrying out top belt supporting; 53. a headset support arm; 54. a headset; 55. the top belt is provided with a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A headset support arm sliding force and service life testing machine, referring to fig. 2 and 3, comprises a frame 1, an object stage 4 rotatably connected to the frame 1, a headset clamp 3 mounted on the object stage 4 and used for clamping a headset support arm 53, a top belt clamp 2 mounted on the frame 1 and used for clamping a top belt support arm 52, and a power source (not shown in the figure) mounted on the frame 1 and driving the object stage 4 to rotate, wherein the headset clamp 3 clamps the headset support arm 53 and rotates around the object stage 4.

Referring to fig. 3, the conventional earphone 5 generally includes a top band 51, top band arms 52 respectively disposed at two ends of the top band 51, a headset arm 53 slidably connected to the top band arm 52, and a headset 54 disposed at an end of the headset arm 53 far from the top band 51, wherein the top band 51, the top band arm 52, and the headset arm 53 are all arc-shaped, a top band groove 55 is disposed on an end surface of the top band arm 52 facing the headset arm 53, and the headset arm 53 is embedded in the top band groove 55 and slides in the top band groove 55.

Referring to fig. 2, the top strap fixture 2 includes a support frame 21 bolted to the frame 1, a clamping block 22 disposed on the top of the support frame 21, and a pushing member 23 disposed on the support frame 21 for fixing the top strap 51, the top of the support frame 21 is provided with a support groove 211 for accommodating the top strap 51, and the clamping block 22 is disposed in the support groove 211 and is slidably connected with the groove bottom of the support groove 211. The pushing member 23 is disposed on a sidewall of the supporting recess 211 away from the stage 4, in this embodiment, the pushing member 23 is a top belt adjusting bolt 230, the top belt adjusting bolt 230 is disposed on the sidewall of the supporting recess 211 and is in threaded connection with the sidewall of the supporting recess 211, and one end of the top belt adjusting bolt 230 in the supporting recess 211 abuts against the clamping block 22.

Continuing to refer to fig. 2, the side wall of the clamping block 22 away from the top belt adjusting bolt 230 is an arc surface 213 adapted to the outer side surface of the top belt 51, the side wall of the supporting groove 211 away from the top belt adjusting bolt 230 is an arc surface 213 adapted to the inner side surface of the top belt 51, the two arc surfaces 213 are mutually matched to form a clamping gap 212, and the clamping gap 212 is adapted to the top belt 51 arranged in an arc shape. The top belt adjusting bolt 230 can push the clamping block 22 to move toward the side wall of the supporting recess 211 opposite to the top belt adjusting bolt 230 by screwing into the side wall of the supporting recess 211, reducing the width of the clamping gap 212 to clamp and fix the top belt 51.

Continuing to refer to fig. 2, objective table 4 is installed on one side of top band clamp 2, the power source is installed at the bottom of objective table 4, in this embodiment, the power source is a servo motor (not shown in the figure), the servo motor is installed inside frame 1 and its rotating shaft penetrates the bottom of objective table 4 and is fixedly connected with objective table 4, the axis of the rotating shaft of the servo motor coincides with the rotating central axis of headset supporting arm 53, headset supporting arm 53 is naturally inserted and pulled out when top band 51 is fixed on top band clamp 2, headset supporting arm 53 will rotate around the rotating shaft of the servo motor. The frame 1 is provided with a plurality of pairs of threaded through holes 11 in a direction away from the object stage 4, and the support frame 21 is bolted to one pair of the threaded through holes 11 to be fixed on the frame 1. Because the earphones 5 of different models have different sizes, the rotating radius of the earphone support arm 53 changes, the position of the support frame 21 on the rack 1 is adjusted by selecting the corresponding threaded through hole 11, the rotating central shaft of the earphone support arm 53 is overlapped with the axis of the servo motor, the earphone support arm 53 can be smoothly plugged in the top belt groove 55, and the test is more accurate.

With continued reference to fig. 2, the headset clamp 3 includes a torsion sensor 31 attached to the stage 4, two opposing clamping plates 32 fixedly mounted on top of the torsion sensor 31, and a fastener 33 mounted on one of the clamping plates 32 for holding the headset arm 53 against the other clamping plate 32. In the embodiment, the fastening member 33 is a headset adjusting bolt 34, the headset adjusting bolt 34 is inserted through the fixing plate 32 and is in threaded connection with the fixing plate 32, and the headset adjusting bolt 34 fixes or releases the headset supporting arm 53 by screwing in or out of the fixing plate 32, so as to press or release the headset supporting arm 53 against the opposite fixing plate 32.

When the earphone is used, the threaded through hole 11 on the machine frame 1 is selected according to the size of the earphone 5 to fix the support frame 21 on the machine frame 1, then the clamping block 22 is placed in the clamping gap 212, the earphone support arm 53 is placed between the two clamping plates, then the top belt adjusting bolt 230 is screwed, the clamping block 22 is pressed towards the top belt 51, and the top and the bottom are fixed on the support frame 21. The headset adjustment bolt 34 is tightened to compress the headset arm 53 against the clamp plate. And finally, the power supply is turned on, and the service life and the sliding force of the support arm of the earphone 5 can be tested by using the servo motor and the torsion sensor 31.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. The utility model provides a headphone support arm sliding force and life test machine which characterized in that includes:

a frame (1);

the object stage (4), the object stage (4) is connected to the frame (1) in a rotating way;

the headset clamp (3) is arranged on the objective table (4) and used for clamping a headset support arm (53);

the top belt clamp (2) is arranged on the rack (1) and is used for clamping a top belt support arm (52); and

the power supply is installed on the frame (1) and drives the objective table (4) to rotate, and the headset clamp (3) clamps the headset support arm (53) to rotate around the objective table (4).

2. The headphone boom sliding force and life test machine according to claim 1, characterized in that the top band clamp (2) comprises:

the supporting frame (21), the supporting frame (21) is bolted to the rack (1), and a supporting groove (211) is formed in the top of the supporting frame (21);

the clamping block (22), the clamping block (22) is arranged in the supporting groove (211), and the side walls of the clamping block (22) and the supporting groove (211) are matched with each other to form a clamping gap (212) for accommodating the top belt (51); and

the pushing piece (23) is arranged on the side wall of the supporting groove (211) and abutted to the clamping block (22), and the pushing piece (23) pushes the clamping block (22) to slide towards the side wall of the supporting groove (211) so as to reduce the clamping gap (212), so that the clamping block (22) clamps and fixes the top belt (51) on the supporting frame (21).

3. The headset arm sliding force and life test machine according to claim 2, wherein the pushing member (23) is a top band adjusting bolt (230), the top band adjusting bolt (230) is inserted into the sidewall of the supporting groove (211) and is in threaded connection with the sidewall of the supporting groove (211), and one end of the top band adjusting bolt (230) in the supporting groove (211) abuts against the clamping block (22).

4. The headset arm sliding force and life testing machine of claim 3, wherein the side wall of the clamping block (22) away from the top band adjusting bolt (230) is an arc surface (213) matched with the outer side surface of the top band (51), and the side wall of the supporting groove (211) away from the top band adjusting bolt (230) is an arc surface (213) matched with the inner side surface of the top band (51).

5. The headset arm sliding force and life test machine according to claim 4, wherein the power source is a servo motor, and a rotation shaft of the servo motor is fixedly connected with the bottom of the stage (4) and is disposed at a rotation center axis of the headset arm (53).

6. The headphone arm sliding force and life test machine according to claim 2, wherein the frame (1) is provided with a plurality of pairs of threaded through holes (11) in a direction away from the stage (4), and the support frame (21) is bolted to one of the pairs of threaded through holes (11) to be fixed to the frame (1).

7. The headset arm sliding force and life test machine according to claim 1, wherein the headset clamp (3) comprises:

the torsion sensor (31), the said torsion sensor (31) is connected to objective table (4), is used for measuring the sliding force that the headset clamp (3) receives when the objective table (4) rotates;

the two fixing clamping plates (32) are oppositely arranged and fixedly arranged at the top of the torsion sensor (31); and

and the fastener (33), the fastener (33) is arranged on one of the fixed clamping plates (32) and is used for pressing the headset support arm (53) against the other fixed clamping plate (32).

8. The headset arm sliding force and life test machine according to claim 7, wherein the fastening member (33) is a headset adjusting bolt (34), the headset adjusting bolt (34) is inserted into the fixing clip (32) and is in threaded connection with the fixing clip (32), and the headset adjusting bolt (34) is screwed into or out of the fixing clip (32) to fix or release the headset arm (53).