A multi-angle detection auxiliary device for earphone production

Abstract

This invention relates to the field of testing equipment technology and discloses a multi-angle testing auxiliary device for headphone production, including a testing clamping mechanism and an elastic clamping mechanism. This multi-angle testing auxiliary device for headphone production can provide a wrapping clamping function for the headphone cable, thereby increasing the area of ​​the cable within the clamped region and reducing the pressure on the cable per unit area. This ensures that external forces do not negatively impact the testing results during the testing process. Furthermore, the device converts the cable's resistance pressure into whether the cable is damaged under the rated clamping force, thus saving on the use of testing mechanisms and reducing equipment manufacturing costs. Since the testing area is the clamping part of the cable, the testing source is the tensile force, thereby improving the accuracy of the testing.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a multi-angle testing auxiliary device for headphone production. Background Technology

[0002] Headphone cables are frequently subjected to pulling during use, and tensile strength is a key indicator of whether a headphone cable can withstand these external forces. Through tensile testing, it can be ensured that the headphone cable is not easily broken during normal use, thus improving the product's durability.

[0003] Most existing testing auxiliary devices for headphone production include a clamping mechanism for the headphone wire, a feeding mechanism for driving the directional movement of the clamping mechanism, and a tensile testing mechanism. After the headphone wire to be tested is clamped and fixed in the clamping mechanism, the feeding mechanism is controlled to make the two clamping mechanisms pull the headphone wire, and then the testing mechanism is used to observe whether the tensile strength of the headphone wire meets the standard.

[0004] In actual testing, the clamping mechanism mostly uses a clamping plate to hold the cable. The clamping plate and the cable are mostly linear structures on the clamping surface (the clamping plate is flat while the cable is cylindrical, and the flat surface of the clamping plate clamps the symmetrical sides of the cable, with line contact between them). This results in uneven pressure on the cable per unit area. To ensure the cable is fixed, a large force is often required to clamp it. This clamping will compress the outer sheath and the internal copper wires. This compression can easily damage the outer sheath and the internal copper wires, and this damage will directly affect the tensile strength test of the headphone cable, resulting in large test errors. In addition, the separate design of the clamping and testing mechanisms will cause the tension force on both ends of the cable by the testing mechanism to be different from the actual tension force of the cable (the testing mechanism is often located on one side of the clamping mechanism, and the moving tension force of the clamping mechanism will be included in the test during the tensile strength test), further reducing the test accuracy. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-angle inspection auxiliary device for headphone production. This device can provide a wrapping clamping function for the headphone cable, thereby increasing the area of ​​the cable within the clamped region and reducing the pressure on the cable per unit area. This ensures that external forces do not negatively impact the inspection results during the inspection process. Furthermore, this device converts the cable's resistance pressure into whether the cable is damaged under the rated clamping force, thus saving on the use of inspection mechanisms and reducing equipment manufacturing costs. Since the inspection area is the clamping part of the cable, the inspection source is the tensile force, thereby improving the accuracy of the inspection and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle detection auxiliary device for headphone production, comprising a support base and two support substrates mounted on the upper surface of the support base, and a detection-type clamping mechanism, the structure of which includes a hollow disk located directly above the support base and movable along the length direction of the support base, a rotating sphere placed in the hollow disk and rotatable, an outer elastic membrane capable of changing the rotational resistance between the hollow disk and the rotating sphere, and an inner elastic membrane disposed at the center of the rotating sphere and capable of wrapping and clamping the wire; and an elastic clamping mechanism, the structure of which includes a lower clamping plate and an upper clamping plate located directly above the support base and movable along the length direction of the support base, a lower clamping groove and an upper clamping groove disposed at opposite ends of the lower clamping plate and upper clamping plate and capable of clamping the wire, and a helical spring capable of controlling the clamping force.

[0007] Preferably, the detection-type clamping mechanism further includes a first mounting base integrally disposed at the bottom of the hollow disc body. The hollow disc body has a spherical cavity with open ends at its center. The hollow disc body has a first annular hydraulic cavity on the periphery of the central region of the spherical cavity. The top of the hollow disc body has a first liquid docking channel connecting the first annular hydraulic cavity. An outer elastic membrane is embedded in the hollow disc body at the junction of the spherical cavity and the first annular hydraulic cavity. A rotatable sphere is placed inside the spherical cavity. The center of the rotatable sphere has an insertion locking hole with open ends. A second annular hydraulic cavity is disposed on the periphery of the central region of the insertion locking hole. An inner elastic membrane is installed in the rotatable sphere at the junction of the insertion locking hole and the second annular hydraulic cavity. A second liquid docking channel connecting the second annular hydraulic cavity is disposed at one end of the rotatable sphere at the insertion locking hole.

[0008] Preferably, during operation, the first liquid docking channel and the second liquid docking channel are connected to the liquid circuit of a hydraulic device through pipes, and the hydraulic device has the function of controlling the liquid flow direction and liquid flow pressure.

[0009] Preferably, the structural radius of the spherical cavity matches the structural radius of the rotating sphere, and the distance between the two open ends of the spherical cavity is not greater than the structural radius of the rotating sphere.

[0010] Preferably, the elastic clamping mechanism further includes a second mounting base integrally disposed at the bottom of the lower clamping plate. The upper surface of the lower clamping plate is provided with two symmetrical lower clamping grooves. A longitudinal limiting rod extending upward is provided at the center of the upper surface of the lower clamping plate. A top limiting plate is fixedly installed at the top of the longitudinal limiting rod. A rod through hole for sliding along the rod body is provided at the center of the upper clamping plate. An upper clamping groove corresponding to the lower clamping groove is provided at the bottom of the upper clamping plate. A helical spring in a compressed state is sleeved around the rod body between the upper clamping plate and the top limiting plate of the longitudinal limiting rod.

[0011] Preferably, the structural shape of the cross-section of the rod through the hole is consistent with the structural shape of the cross-section of the longitudinal limiting rod, both being polygonal structures, and the structural dimensions of the cross-section of the rod through the hole match the structural dimensions of the cross-section of the longitudinal limiting rod.

[0012] Preferably, it also includes a threaded feed mechanism, the structure of which includes two limiting and fixing ends fixedly mounted on the top of the support base plate, a first external thread rod and a second external thread rod rotatably mounted between the two limiting and fixing ends, and a first moving seat and a second moving seat capable of generating directional movement when the first external thread rod and the second external thread rod rotate.

[0013] Preferably, the threaded feed mechanism further includes a shaft mounting hole located at the center of the limiting and fixing end. Each shaft mounting hole has a rotating shaft mounted in it via a bearing. One end of one of the rotating shafts is fixedly mounted with a hand crank. The two rotating shafts are respectively fixedly mounted with a No. 1 external thread rod and a No. 2 external thread rod at their opposite ends via a coupling. The No. 1 external thread rod and the No. 2 external thread rod are fixedly connected at their opposite ends via a central limiting plate. A horizontal sliding rod is fixedly mounted between the two limiting and fixing ends at their opposite ends. Both the No. 1 and No. 2 moving seats have limiting sliding holes inside that can slide along the horizontal sliding rod. The center of the No. 1 moving seat has a No. 1 internal thread hole mounted on the body of the No. 1 external thread rod via a No. 1 threaded structure. The center of the No. 2 moving seat has a No. 2 internal thread hole mounted on the body of the No. 2 external thread rod via a No. 2 threaded structure. The upper surface of the No. 1 moving seat is fixedly mounted on the bottom of the No. 1 mounting base, and the upper surface of the No. 2 moving seat is fixedly mounted on the bottom of the No. 2 mounting base.

[0014] Preferably, the cross-sectional shape of the limiting sliding hole is consistent with the cross-sectional shape of the horizontal sliding rod, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the limiting sliding hole match the structural dimensions of the cross-sectional shape of the horizontal sliding rod.

[0015] Preferably, the helical direction of the first thread structure is opposite to that of the second thread structure, and the first thread structure includes an internal thread structure disposed on the inner wall of the first internal thread hole and an external thread structure disposed on the body of the first external thread rod, and the second thread structure includes an internal thread structure disposed on the inner wall of the second internal thread hole and an external thread structure disposed on the body of the second external thread rod.

[0016] Compared with the prior art, the present invention provides a multi-angle detection auxiliary device for headphone production, which has the following beneficial effects: 1. It can provide a wrap-around clamping function for the headphone cable, thereby increasing the area of ​​the cable within the clamped region and reducing the pressure on the cable per unit area. This ensures that external forces do not negatively affect the test results during the testing process. In addition, the device converts the cable's resistance pressure into whether the cable is damaged under the rated clamping force, thus saving on the use of testing mechanisms and reducing equipment manufacturing costs. Furthermore, since the testing area is the clamping part of the cable, the testing source is the tensile force, thereby improving the accuracy of the test.

[0017] 2. Equipped with a detection-type clamping mechanism, this device utilizes a combination of a hollow disc, a spherical cavity, a rotatable sphere, inner and outer elastic membranes, and a hydraulic chamber. The hydraulically driven inner elastic membrane forms a wrap-around clamping grip on the headphone cable, significantly increasing the contact area and reducing unit pressure to prevent damage from compression. Simultaneously, the outer elastic membrane, in conjunction with the first annular hydraulic chamber, precisely controls the frictional resistance of the rotating sphere, setting a standard tensile threshold. Furthermore, the rotating sphere can rotate at multiple angles within the spherical cavity, simulating different bending conditions of the headphone cable. No additional detection components are required, ensuring stable clamping while enabling multi-angle tensile testing, significantly improving detection accuracy and reliability.

[0018] 3. It is equipped with an elastic clamping mechanism, which consists of a lower clamping plate, an upper clamping plate, symmetrical clamping slots, a longitudinal limiting rod, a top limiting plate, and a helical spring. The compressed helical spring provides a stable and controllable clamping force. The upper clamping plate slides in a directional manner through the polygonal longitudinal limiting rod and the matching rod through the hole, ensuring accurate alignment and preventing deviation. The symmetrically arranged upper and lower clamping slots can adapt to the shape of the headphone cable and clamp it snugly. The overall structure is simple and easy to operate, which can quickly complete the loading, unloading and reliable fixation of the cable. The clamping force is uniform and does not easily damage the cable, which is suitable for the high-efficiency fixation requirements on the production line.

[0019] 4. Equipped with a threaded feed mechanism, consisting of a limiting fixed end, forward and reverse external threaded rods, a moving seat, a horizontal slide bar, a hand crank, and a coupling. By engaging the first and second external threaded rods with opposite helical directions and their corresponding internal threaded holes, cranking the hand crank can drive the two moving seats to move smoothly in opposite directions along the polygonal horizontal slide bar, achieving synchronous movement of the clamping mechanism away from or towards each other. The horizontal slide bar and the limiting slide hole ensure coaxiality and stability of the movement, preventing deviation. The overall structure is simple and reliable, with high transmission accuracy and labor-saving operation. It can precisely control the pulling stroke and the magnitude of the pulling force, adapting to the uniform and stable feed requirements of headphone cable tensile testing. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the detection-type clamping mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the detection-type clamping mechanism in this invention; Figure 5 This is a perspective view of the elastic clamping mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the elastic clamping mechanism in this invention; Figure 7 This is a perspective view of the threaded feed mechanism in this invention; Figure 8 This is a three-dimensional cross-sectional view of the threaded feed mechanism in this invention.

[0021] The components include: 1. Support base; 2. Support base plate; 3. Detection-type clamping mechanism; 31. Hollow disc; 32. Mounting base No. 1; 33. Spherical cavity; 34. Annular hydraulic cavity No. 1; 35. Liquid docking channel No. 1; 36. Outer elastic membrane; 37. Rotating sphere; 38. Insertion locking hole; 39. Annular hydraulic cavity No. 2; 310. Inner elastic membrane; 311. Liquid docking channel No. 2; 4. Elastic clamping mechanism; 41. Lower clamping plate; 42. Upper clamping plate; 43. Mounting base No. 2; 44. Lower clamping groove; 4 5. Upper clamping groove; 46. Rod through hole; 47. Longitudinal limiting rod; 48. Top limiting plate; 49. Helical spring; 5. Threaded feed mechanism; 51. Limiting fixed end; 52. Shaft mounting hole; 53. Rotating shaft; 54. Hand crank; 55. Coupling; 56. No. 1 external threaded rod; 57. No. 2 external threaded rod; 58. Center limiting plate; 59. No. 1 moving seat; 510. No. 2 moving seat; 511. No. 1 internal threaded hole; 512. No. 2 internal threaded hole; 513. Limiting sliding hole; 514. Horizontal sliding rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 and Figure 2 A multi-angle detection auxiliary device for headphone production includes a support base 1 and two support substrates 2 mounted on the upper surface of the support base 1. The first liquid docking channel 35 and the second liquid docking channel 311 are connected to the liquid circuit of a hydraulic device through pipes. The hydraulic device has the function of controlling the liquid flow direction and liquid flow pressure.

[0024] To secure one end of the headphone cable and, based on that, test its tensile strength, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 and Figure 4 A detection-type clamping mechanism 3 needs to be set up. Its structure includes a hollow disc 31 located directly above the support base 1 and capable of moving along the length of the support base 1; a rotating ball 37 placed inside the hollow disc 31 and capable of rotating; an outer elastic membrane 36 capable of changing the rotational resistance between the hollow disc 31 and the rotating ball 37; and an inner elastic membrane 310 located at the center of the rotating ball 37 and capable of wrapping and clamping the cable. The insertion end of the headphone cable is passed through the center of the inner elastic membrane 310 and the interior of the insertion locking hole 38, and then the insertion end of the headphone cable is inserted into the corresponding jack of the sound-producing device. Then, the hydraulic device is activated, first allowing liquid to enter the interior of the second annular hydraulic chamber 39 through the second liquid docking channel 311. Under liquid pressure, the outer periphery of the inner elastic membrane 310 is subjected to liquid pressure, causing the inner hole to close until the inner circumference of the inner elastic membrane 310 tightly clamps the cable. The device holds the headphone cable in place, and then injects liquid into the first annular hydraulic chamber 34 via a hydraulic device. Under liquid pressure, the outer circumference of the outer elastic membrane 36 will experience an inner hole closing phenomenon, thus wrapping around the outer circumference of the rotating ball 37 with a certain pressure. By controlling the pressure of the liquid on the outer elastic membrane 36, the maximum static friction between the outer elastic membrane 36 and the rotating ball 37 can be controlled. It should be noted that the tensile strength formed by this maximum static friction needs to be consistent with the tensile strength index of the headphone cable. Before testing, the rotating ball 37 needs to be rotated so that the orientation of the insertion locking hole 38 deviates from the clamping direction of the lower clamping groove 44 and the upper clamping groove 45. In other words, the headphone cable is in an angled bending state at the clamping part of the insertion locking hole 38 to simulate the tensile strength of the headphone cable at different angles, thereby fixing one end of the headphone cable and, on the basis of fixing, realizing the tensile strength test.

[0025] For details regarding the specific structure of the detection-type clamping mechanism 3, please refer to [link / reference]. Figure 3 and Figure 4 It also includes a first mounting base 32 integrally disposed at the bottom of the hollow disc body 31. The hollow disc body 31 has a spherical cavity 33 with open ends at its center. A first annular hydraulic cavity 34 is disposed around the central area of ​​the spherical cavity 33. A first liquid docking channel 35 connecting the first annular hydraulic cavity 34 is disposed at the top of the hollow disc body 31. An external elastic membrane 36 is embedded at the junction of the spherical cavity 33 and the first annular hydraulic cavity 34. A rotatable rotating ball 37 is placed inside the spherical cavity 33. An insertion locking hole 38 with open ends is disposed at the center of the rotating ball 37. A second annular hydraulic chamber 39 is provided around the central area. An inner elastic membrane 310 is installed at the junction of the insertion locking hole 38 and the second annular hydraulic chamber 39 on the rotating sphere 37. A second liquid docking channel 311 is provided at one end of the rotating sphere 37 that connects to the second annular hydraulic chamber 39. During operation, the first liquid docking channel 35 and the second liquid docking channel 311 are connected to the liquid circuit of a hydraulic device through a pipe. The hydraulic device has the function of controlling the direction and pressure of liquid flow. The structural radius of the spherical cavity 33 matches the structural radius of the rotating sphere 37, and the distance between the two open ends of the spherical cavity 33 is not greater than the structural radius of the rotating sphere 37.

[0026] To enable quick securing of the other end of the headphone cable, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 5 and Figure 6 An elastic clamping mechanism 4 needs to be set up. Its structure includes a lower clamping plate 41 and an upper clamping plate 42 located directly above the support base 1 and capable of moving along the length of the support base 1; a lower clamping groove 44 and an upper clamping groove 45 located at opposite ends of the lower clamping plate 41 and the upper clamping plate 42 and capable of clamping the wire; and a spiral spring 49 capable of controlling the clamping force. Pulling the upper clamping plate 42 upward will clamp the other end of the headphone wire inside the lower clamping groove 44 and the upper clamping groove 45. Then, the upper clamping plate 42 is released. Under the elastic pressure of the spiral spring 49, the lower clamping plate 41 and the upper clamping plate 42 can quickly clamp and fix the wire, thereby realizing the function of quickly fixing the other end of the headphone wire.

[0027] For details regarding the specific structure of the elastic clamping mechanism 4, please refer to [link / reference]. Figure 5 and Figure 6It also includes a second mounting base 43 integrally disposed at the bottom of the lower clamping plate 41. The upper surface of the lower clamping plate 41 is provided with two symmetrical lower clamping grooves 44. A longitudinal limiting rod 47 extending upward is provided at the center of the upper surface of the lower clamping plate 41. A top limiting plate 48 is fixedly installed at the top of the longitudinal limiting rod 47. A rod through hole 46 for sliding along the rod body of the longitudinal limiting rod 47 is provided at the center of the upper clamping plate 42. An upper clamping groove 45 corresponding to the lower clamping grooves 44 is provided at the bottom of the upper clamping plate 42. A coil spring 49 in a compressed state is sleeved around the rod body of the longitudinal limiting rod 47 between the upper clamping plate 42 and the top limiting plate 48. The cross-sectional shape of the rod through hole 46 is consistent with the cross-sectional shape of the longitudinal limiting rod 47, both being polygonal structures, and the cross-sectional dimensions of the rod through hole 46 match the cross-sectional dimensions of the longitudinal limiting rod 47.

[0028] To achieve directional pulling of the headphone cable and thus complete the feeding function during the pulling process, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 7 and Figure 8 A threaded feed mechanism 5 needs to be installed. Its structure includes two fixed limiting ends 51 fixedly mounted on the top of the support base plate 2, a first external threaded rod 56 and a second external threaded rod 57 rotatably mounted between the two limiting ends 51, and a first moving seat 59 and a second moving seat 510 capable of directional movement when the first external threaded rod 56 and the second external threaded rod 57 rotate. A hand crank 54 is directionally rotated. At this time, the rotating shaft 53 will drive the first external threaded rod 56 and the second external threaded rod 57 to rotate in the same direction. The direction of rotation is controlled by... Furthermore, the spiral direction of the No. 1 thread structure is opposite to that of the No. 2 thread structure, causing the No. 1 moving seat 59 and the No. 2 moving seat 510 to move away from each other. When the headphone cable is taut, slowly rotate the hand crank 54. At this time, the headphone cable is pulled. The staff needs to pay attention to whether the headphone cable speaker is making a normal sound until the pulling force causes the rotating ball 37 to rotate. This indicates that the pulling force of the headphone cable has reached the test standard. Then observe whether the headphone cable speaker is making a normal sound to test whether the tensile strength of the headphone cable meets the standard.

[0029] For details regarding the specific structure of the threaded feed mechanism 5, please refer to [link / reference]. Figure 7 and Figure 8It also includes a shaft mounting hole 52 located at the center of the limiting and fixing end 51. Each shaft mounting hole 52 contains a rotating shaft 53 mounted via a bearing. One end of one of the rotating shafts 53 is fixedly mounted with a hand crank 54. Two rotating shafts 53 are respectively fixedly mounted at opposite ends via a coupling 55 to a first external thread rod 56 and a second external thread rod 57. The first external thread rod 56 and the second external thread rod 57 are fixedly connected at opposite ends via a central limiting plate 58. A horizontal sliding rod 514 is fixedly mounted between the two limiting and fixing ends 51. Both the first moving seat 59 and the second moving seat 510 have internal limiting sliding holes 513 that can slide along the horizontal sliding rod 514. The center of the first moving seat 59 has a first internal thread hole 511 that is mounted to the body of the first external thread rod 56 via a first thread structure. The center of the second moving seat 510 has a second internal thread hole 511 that is mounted to the body of the first external thread rod 56 via a second thread structure. The threaded structure is installed in the second internal threaded hole 512 at the body of the second external threaded rod 57. The upper surface of the first moving seat 59 is fixedly installed at the bottom of the first mounting base 32. The upper surface of the second moving seat 510 is fixedly installed at the bottom of the second mounting base 43. The cross-sectional shape of the limiting sliding hole 513 is consistent with the cross-sectional shape of the horizontal sliding rod 514, both being polygonal structures. The cross-sectional dimensions of the limiting sliding hole 513 match the cross-sectional dimensions of the horizontal sliding rod 514. The helical direction of the first thread structure is opposite to that of the second thread structure. The first thread structure includes an internal thread structure set on the inner circumference of the first internal threaded hole 511 and an external thread structure set at the body of the first external threaded rod 56. The second thread structure includes an internal thread structure set on the inner circumference of the second internal threaded hole 512 and an external thread structure set at the body of the second external threaded rod 57.

[0030] In use, the first liquid connection channel 35 and the second liquid connection channel 311 are connected to the liquid circuit of a hydraulic device via pipes. This hydraulic device has the function of controlling the liquid flow direction and pressure. Then, the hydraulic device is started, first allowing liquid to enter the second annular hydraulic chamber 39 through the second liquid connection channel 311. Under liquid pressure, the outer periphery of the inner elastic membrane 310 is subjected to liquid pressure, causing the inner hole to close until the inner circumference of the inner elastic membrane 310 tightly clamps the headphone cable. Then, the liquid is transferred to the first... Liquid is injected into the annular hydraulic chamber 34. Under liquid pressure, the outer circumference of the outer elastic membrane 36 will experience an inner hole closing phenomenon, thus wrapping around the outer circumference of the rotating ball 37 with a certain pressure. By controlling the pressure of the liquid on the outer elastic membrane 36, the maximum static friction between the outer elastic membrane 36 and the rotating ball 37 can be controlled. It should be noted that the tensile strength formed by this maximum static friction needs to be consistent with the tensile strength index of the headphone cable. Before testing, the rotating ball 37 needs to be rotated so that the orientation of the insertion locking hole 38 deviates from the clamping direction of the lower clamping groove 44 and the upper clamping groove 45. In other words, the headphone cable is positioned at an angle when inserted into the locking hole 38 to simulate the tensile strength of the headphone cable at different angles. Pulling the upper clamping plate 42 upwards then secures the other end of the headphone cable within the lower clamping groove 44 and the upper clamping groove 45. Releasing the upper clamping plate 42 allows the lower clamping plate 41 and the upper clamping plate 42 to quickly clamp and fix the cable under the elastic pressure of the coil spring 49. Rotating the hand crank 54 causes the rotating shaft 53 to drive the first external threaded rod 56 and the second external threaded rod 57 to rotate in the same direction. By controlling the rotation direction, and with the spiral direction of the first thread structure opposite to that of the second thread structure, the first moving seat 59 and the second moving seat 510 are moved away from each other. When the headphone cable is taut, the hand crank 54 is slowly rotated. At this time, the headphone cable is pulled. The staff needs to pay attention to whether the speaker of the headphone cable is making a sound normally until the pulling force causes the rotating ball 37 to rotate. This indicates that the pulling force of the headphone cable has reached the test standard. Then observe whether the speaker of the headphone cable is making a sound normally, thereby testing whether the tensile strength of the headphone cable meets the standard.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle detection auxiliary device for headphone production, comprising a support base (1) and two support substrates (2) mounted on the upper surface of the support base (1), characterized in that: It also includes, The detection clamping mechanism (3) includes a hollow disc (31) located directly above the support base (1) and capable of moving along the length of the support base (1), a rotating ball (37) placed in the hollow disc (31) and capable of rotating, an outer elastic membrane (36) capable of changing the rotational resistance between the hollow disc (31) and the rotating ball (37), and an inner elastic membrane (310) located at the center of the rotating ball (37) and capable of wrapping and clamping the line. And an elastic clamping mechanism (4), the structure of which includes a lower clamping plate (41) and an upper clamping plate (42) located directly above the support base (1) and capable of moving along the length of the support base (1), a lower clamping groove (44) and an upper clamping groove (45) disposed at opposite ends of the lower clamping plate (41) and the upper clamping plate (42) and capable of clamping the line body, and a helical spring (49) capable of controlling the clamping force.

2. The multi-angle detection auxiliary device for headphone production according to claim 1, characterized in that: The detection-type clamping mechanism (3) also includes a first mounting base (32) integrally disposed at the bottom of the hollow disc (31). The hollow disc (31) has a spherical cavity (33) with open ends at its center. A first annular hydraulic cavity (34) is disposed around the central area of ​​the spherical cavity (33). A first liquid docking channel (35) connecting the first annular hydraulic cavity (34) is disposed at the top of the hollow disc (31). An external elastic membrane (36) is embedded at the junction of the spherical cavity (33) and the first annular hydraulic cavity (34). Inside the spherical cavity (33), a rotating sphere (37) is placed. The center of the rotating sphere (37) is provided with an insertion locking hole (38) with open ends. The rotating sphere (37) is provided with a second annular hydraulic cavity (39) around the middle area of ​​the insertion locking hole (38). An inner elastic membrane (310) is installed at the junction of the insertion locking hole (38) and the second annular hydraulic cavity (39) of the rotating sphere (37). A second liquid docking channel (311) connecting the second annular hydraulic cavity (39) is provided at one end of the rotating sphere (37) of the insertion locking hole (38).

3. The multi-angle detection auxiliary device for headphone production according to claim 2, characterized in that: During operation, the No. 1 liquid docking channel (35) and the No. 2 liquid docking channel (311) are connected to the liquid circuit of a hydraulic device through pipelines, and the hydraulic device has the function of controlling the liquid flow direction and liquid flow pressure.

4. The multi-angle detection auxiliary device for headphone production according to claim 3, characterized in that: The structural radius of the spherical cavity (33) matches the structural radius of the rotating sphere (37), and the distance between the two open ends of the spherical cavity (33) is not greater than the structural radius of the rotating sphere (37).

5. The multi-angle detection auxiliary device for headphone production according to claim 4, characterized in that: The elastic clamping mechanism (4) also includes a second mounting base (43) integrally disposed at the bottom of the lower clamping plate (41). The upper surface of the lower clamping plate (41) is provided with two symmetrical lower clamping grooves (44). The center of the upper surface of the lower clamping plate (41) is provided with an upwardly extending longitudinal limiting rod (47). The top end of the longitudinal limiting rod (47) is fixedly installed with a top limiting plate (48). The center of the upper clamping plate (42) is provided with a rod through hole (46) for sliding along the rod body of the longitudinal limiting rod (47). The bottom of the upper clamping plate (42) is provided with an upper clamping groove (45) corresponding to the lower clamping grooves (44). A coil spring (49) in a compressed state is sleeved around the rod body of the longitudinal limiting rod (47) between the upper clamping plate (42) and the top limiting plate (48).

6. The multi-angle detection auxiliary device for headphone production according to claim 5, characterized in that: The cross-sectional shape of the rod through hole (46) is consistent with the cross-sectional shape of the longitudinal limiting rod (47), both being polygonal structures, and the structural dimensions of the cross-sectional shape of the rod through hole (46) match the structural dimensions of the cross-sectional shape of the longitudinal limiting rod (47).

7. A multi-angle detection auxiliary device for headphone production according to claim 6, characterized in that: It also includes a threaded feed mechanism (5), the structure of which includes two limiting and fixing ends (51) fixedly installed on the top of the support base plate (2), a first external thread rod (56) and a second external thread rod (57) rotatably installed between the two limiting and fixing ends (51), and a first moving seat (59) and a second moving seat (510) capable of generating directional movement when the first external thread rod (56) and the second external thread rod (57) rotate.

8. The multi-angle detection auxiliary device for headphone production according to claim 7, characterized in that: The threaded feed mechanism (5) further includes a shaft mounting hole (52) located at the center of the limiting and fixing end (51). Each shaft mounting hole (52) has a rotating shaft (53) mounted in it via a bearing. One end of one of the rotating shafts (53) is fixedly mounted with a hand crank (54). The two rotating shafts (53) are fixedly mounted with a first external thread rod (56) and a second external thread rod (57) at their opposite ends via a coupling (55). The first external thread rod (56) and the second external thread rod (57) are fixedly connected at their opposite ends via a central limiting plate (58). A horizontal slide rod (514) is fixedly mounted between the two limiting and fixing ends (51) at their opposite ends. Both the first movable seat (59) and the second movable seat (510) are provided with limiting sliding holes (513) that can slide along the horizontal sliding rod (514). The center of the first movable seat (59) is provided with a first internal thread hole (511) that is installed on the body of the first external thread rod (56) through a first thread structure. The center of the second movable seat (510) is provided with a second internal thread hole (512) that is installed on the body of the second external thread rod (57) through a second thread structure. The upper surface of the first movable seat (59) is fixedly installed on the bottom of the first mounting base (32), and the upper surface of the second movable seat (510) is fixedly installed on the bottom of the second mounting base (43).

9. A multi-angle detection auxiliary device for headphone production according to claim 8, characterized in that: The cross-sectional shape of the limiting sliding hole (513) is consistent with the cross-sectional shape of the horizontal sliding rod (514), both being polygonal structures, and the structural dimensions of the cross-section of the limiting sliding hole (513) match the structural dimensions of the cross-section of the horizontal sliding rod (514).

10. A multi-angle detection auxiliary device for headphone production according to claim 9, characterized in that: The spiral direction of the first thread structure is opposite to that of the second thread structure. The first thread structure includes an internal thread structure set on the inner wall of the first internal thread hole (511) and an external thread structure set on the rod body of the first external thread rod (56). The second thread structure includes an internal thread structure set on the inner wall of the second internal thread hole (512) and an external thread structure set on the rod body of the second external thread rod (57).

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