A kind of NB8 acoustic shell welding post-audio cable pneumatic press-in tool

Abstract

The utility model relates to a kind of NB8 sound shell after welding audio cable's pneumatic press-in tool, including cylinder, cylinder lower head, rotary lower pressing connecting rod, special cable line pressure head, product profiling positioning base, bottom plate, tool antiskid support leg, special cable line placement base, manual air valve switch, mobile slide rail seat, cable line pressure head support and cylinder support;Gas cylinder is controlled by manual air valve switch to go up and down;Special cable line pressure head and air clearance groove design are used, different size rubber mushroom head is adapted and line harness damage is avoided;Shell is accurately aligned by profiling positioning base and slide rail limiting structure;Tool antiskid support leg is height-adjustable rubber support leg, ensure operation stability.The utility model can realize that cable line is quickly pressed into car audio shell product, improve product production efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a pneumatic pressing tool for inserting audio cables after welding the NB8 speaker housing. Background Technology

[0002] In the process of installing cables in car audio housings, to ensure the quality of the subwoofer, rubber mushroom-shaped caps on the audio cables are used to seal the cable mounting holes in the housing. These rubber mushroom-shaped caps have a certain degree of hardness. Currently, the installation of audio cables after welding the car audio housing largely relies on manual operation. Manual crimping is time-consuming and difficult to meet the needs of mass production. Manual alignment is prone to misalignment, causing the mushroom-shaped rubber cap to misalign with the mounting hole, affecting sound quality. Traditional tooling lacks clearance design, easily compressing the cable sheath during crimping. Existing equipment cannot accommodate cable heads of different sizes, requiring frequent tooling changes. Although some pneumatic tooling exists in existing technology, it lacks contour positioning and adjustable crimping structures, still suffering from inaccurate positioning and poor adaptability. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a pneumatic pressing tool for the audio cable after the NB8 speaker shell has been welded; the specific technical solution is as follows: A pneumatic pressing fixture for inserting audio cables after welding the shell of an NB8 speaker includes a pressing cylinder, a cylinder pressing head, a rotary pressing connecting rod, a shaped cable pressing head, a product contour positioning base, a base plate, fixture anti-slip legs, a shaped cable placement base, a manual air valve switch, a fixture nameplate, a slide groove limit block a, a slide groove limit block b, a slide rail, a movable slide rail seat, a cable pressing head bracket, and a cylinder bracket. The bottom of the base plate is provided with multiple tooling anti-slip support legs, and the top is equipped with a slide rail along the length direction; The product contour positioning base is fixed on the base plate; the slide groove limiting block a and slide groove limiting block b are symmetrically arranged at both ends of the slide rail; The irregular cable placement base and the cable pressure head bracket form a cable installation device; The cable clamp bracket is Z-shaped, with a non-shaped cable clamp mounted on the lower part of one end; the other end is connected to the movable slide rail. The irregular cable placement base is set on the base at the front end of the product contour positioning base, and the irregular cable placement base is provided with a clearance groove, which is used to accommodate the cable bundle and prevent it from being crushed. The cylinder, cylinder pressing head, rotary pressing connecting rod, and movable slide rail seat constitute the pressing device; the cylinder is vertically fixed to the base plate by an L-shaped cylinder bracket; The movable slide rail seat is mounted on the slide rail and is slidably connected to the slide rail; The rotary pressing connecting rod is installed on the cable head bracket above the irregular cable head; The cable head support moves along the slide rail via a movable slide rail seat. The slide groove limiting block a and slide groove limiting block b are used to limit the longitudinal displacement of the cable head support on the slide rail to prevent overtravel operation. The cable head bracket drives the pressing device to enter or exit the speaker housing; The manual air valve switch is located on the side of the base plate and is pneumatically connected to the cylinder to control its lifting and lowering action; The irregularly shaped cable pressure head is coaxially aligned with the rotary pressure connecting rod and the cylinder pressure head. The speaker housing is placed on the contour positioning base. The position of the housing is adjusted so that the speaker opening of the housing corresponds to the cable clamp bracket and is locked by the cable clamp bracket. By pushing the movable slide rail, the irregularly shaped cable clamp on the cable clamp bracket is inserted into the speaker housing and aligned with the mushroom-shaped rubber plug; The manual air valve switch drives the cylinder to press down, and the pressure is transmitted through the rotary pressing connecting rod. The irregular cable pressing head vertically presses the mushroom-shaped rubber plug of the audio cable into the cable mounting hole of the housing, and the clearance groove ensures the positional accuracy of the wire harness.

[0004] The preferred embodiment of the pneumatic pressing fixture for inserting audio cables after welding the NB8 speaker housing is that the anti-slip legs of the fixture are height-adjustable rubber legs, and the levelness of the base plate is adjusted by a threaded knob.

[0005] The preferred embodiment of the pneumatic pressing tool for inserting audio cables after welding the NB8 speaker housing is that the irregularly shaped cable pressing head is detachably connected to the cable pressing head bracket through a snap-fit ​​structure, and is adapted to mushroom-shaped rubber plugs of different sizes.

[0006] The preferred embodiment of the pneumatic pressing tool for the audio cable after welding the NB8 speaker housing is that the connection between the rotary pressing connecting rod and the movable slide rail is provided with a bushing to ensure the smoothness of the pressing action.

[0007] The preferred embodiment of the pneumatic pressing tool for the audio cable after welding the NB8 speaker housing is that the size of the clearance groove matches the audio cable harness to avoid damage to the harness during the pressing process.

[0008] The working process of a pneumatic pressing fixture for inserting audio cables after welding the NB8 speaker housing includes the following steps: 1) Pass the large end of the cable through the cable mounting hole on the speaker housing and out of the housing; 2) Place the product with the flared end facing to the side on the base of the pneumatic press-fit fixture; 3) Place the cable bundle on the larger end into the recessed slot of the irregular cable placement base to prevent damage to the cable; 4) Adjust the cable position so that the cable harness is perpendicular to the large circle of the housing. Move the cylinder pressure head into the housing along the slide rail. Align the irregular cable pressure head with the cable to prevent damage to the cable. The pressure head presses down on the mushroom-shaped rubber plug of the cable by gravity. 5) Turn on the pneumatic switch, and the lower cylinder will drive the lower cylinder head to complete the cable installation. Turn on the pneumatic switch again, and the lower cylinder will rise, moving the lower cylinder head up and out of the housing along the slide rail. Remove the speaker housing from the pneumatic pressing tool. Beneficial effects

[0009] This invention enables rapid insertion of cables into car audio housings. Through a combination of pneumatic drive and a contour-following positioning base, it achieves fast and precise insertion of audio cables. The anti-gauge groove design ensures no compression damage to the cable harness during insertion. The detachable, irregularly shaped cable clamp and height-adjustable anti-slip legs are compatible with different sized rubber mushroom heads and work surfaces. The slide rail and movable slide rail base, combined with a manual air valve switch, simplify the tooling's forward and backward movements and reduce operational difficulty. This technical solution improves finished product assembly efficiency, shortens production time, and reduces the number of production personnel. Attached Figure Description

[0010] Figure 1 A front view of a pneumatic press-fit fixture for inserting audio cables after welding the housing of an NB8 speaker. Figure 2 A three-dimensional view of the speaker housing and the pneumatic press-fit fixture; Figure 3 This is a structural diagram of the speaker enclosure; Figure 4 Audio cable for speaker housing.

[0011] In the diagram: 1-Cylinder, 2-Cylinder pressing head, 3-Rotary pressing connecting rod, 4-Irregular cable pressing head, 5-Product contour positioning base, 6-Base plate, 7-Tooling anti-slip support leg, 8-Irregular cable placement base, 9-Manual air valve switch, 10-Void groove, 11-Tooling nameplate, 12-Slide groove limit block a, 13-Slide groove limit block b, 14-Housing large circle, 15-Slide rail, 16-Moving slide rail seat, 17-Cable pressing head bracket, 18-Cylinder bracket, 19-Cable large end side harness, 20-Speaker housing, 21-Mushroom head rubber plug, 22-Housing cable mounting hole. Detailed Implementation

[0012] like Figures 1-4As shown, a pneumatic pressing fixture for inserting audio cables after welding the NB8 speaker housing includes a cylinder 1, a cylinder pressing head 2, a rotary pressing connecting rod 3, a shaped cable pressing head 4, a product contour positioning base 5, a base plate 6, fixture anti-slip legs 7, a shaped cable placement base 8, a manual air valve switch 9, a fixture nameplate 11, a slide groove limit block a12, a slide groove limit block b13, a slide rail 15, a movable slide rail seat 16, a cable pressing head bracket 17, and a cylinder bracket 18. The bottom of the base plate 6 is provided with multiple tooling anti-slip support legs 7, and the top is equipped with a slide rail 15 along the length direction; The product contour positioning base 5 is fixed on the base plate 6; the slide groove limiting block a12 and slide groove limiting block b13 are symmetrically arranged at both ends of the slide rail 15; The irregular cable placement base 8 and the cable pressure head bracket 17 form a cable installation device; The cable clamp bracket 17 is Z-shaped, with a non-shaped cable clamp 4 installed at the bottom of one end; the other end is connected to the movable slide rail 16. The irregular cable placement base 8 is set on the base plate 6 at the front end of the product contour positioning base 5, and the irregular cable placement base 8 is provided with a clearance groove, which is used to accommodate the cable bundle and prevent it from being crushed. The cylinder 1, cylinder pressing head 2, rotary pressing connecting rod 3 and movable slide rail seat 16 constitute a pressing device; the cylinder 1 is vertically fixed on the base plate 6 by an L-shaped cylinder bracket 18. The movable slide rail seat 16 is mounted on the slide rail 15 and is slidably connected to the slide rail 15. The rotary pressing connecting rod 3 is installed on the cable head bracket 17 above the irregular cable head 4; The cable head support 17 moves along the slide rail 15 via the movable slide rail seat 16. The slide groove limiting block a12 and slide groove limiting block b13 are used to limit the longitudinal displacement of the cable head support 17 on the slide rail 15 to prevent overtravel operation. The cable clamp bracket 17 drives the pressing device to enter or exit the speaker housing; The manual air valve switch 9 is located on the side of the base plate 6 and is pneumatically connected to the cylinder 1 to control its lifting and lowering action. The irregular cable pressure head 4 is coaxially aligned with the rotary pressure connecting rod 3 and the cylinder pressure head 2. The speaker housing 20 is placed on the contour positioning base 5. The position of the speaker housing 20 is adjusted so that its horn opening is aligned with the cable clamp bracket 17. It is then fixed by the gravity pressing down of the irregular cable clamp 4. By pushing the movable slide rail seat 16, the irregularly shaped cable head 4 on the cable head bracket 17 is inserted into the speaker housing 20 and aligned with the mushroom-shaped rubber plug 21. The manual air valve switch 9 drives the cylinder 1 to press down, and the pressure is transmitted through the rotary pressing connecting rod 3. The irregular cable pressing head 4 presses the mushroom-shaped rubber plug 21 of the audio cable vertically into the cable mounting hole 22 of the housing, and the clearance groove 10 ensures the positional accuracy of the wire harness.

[0013] The tooling anti-slip support leg 7 is a height-adjustable rubber support leg, and the levelness of the base plate 6 can be adjusted by a threaded knob.

[0014] The irregularly shaped cable clamp 4 is detachably connected to the cable clamp bracket 17 via a snap-fit ​​structure, and is compatible with mushroom-shaped rubber plugs 21 of different sizes.

[0015] A bushing is provided at the connection between the rotary pressing connecting rod 3 and the movable slide rail seat 16 to ensure the smoothness of the pressing action.

[0016] The size of the recessed groove 10 is matched with that of the audio cable harness to avoid damage to the harness during the pressing process.

[0017] The working process of a pneumatic pressing fixture for inserting audio cables after welding the NB8 speaker housing includes the following steps: 1) Pass the large end of the cable through the cable mounting hole on the speaker housing 20; 2) Place the product with the flared end facing to the side on the base plate 1 of the pneumatic press-fit fixture; 3) Place the cable bundle 19 on the larger end into the clearance groove 10 of the irregular cable placement base 8 to prevent damage to the cable. 4) Adjust the cable position so that the cable harness is perpendicular to the large circle 14 of the housing. Move the cylinder lower pressure head 2 into the speaker housing 20 along the slide rail 15. Align the irregular cable pressure head 4 with the cable to prevent damage to the cable. The pressure head presses down on the mushroom head rubber plug 21 of the cable by gravity. 5) Turn on the pneumatic switch, and the cylinder 1 drives the cylinder pressing head 2 to complete the cable installation. Turn on the pneumatic switch 9 again, and the cylinder 1 will rise, moving the cylinder pressing head 2 upward and out of the speaker housing 20 along the slide rail 15. Remove the speaker housing 20 from the pneumatic pressing tool.

Claims

1. A pneumatic pressing fixture for inserting audio cables after welding the NB8 speaker housing, characterized in that: Includes cylinder (1), cylinder pressing head (2), rotary pressing connecting rod (3), irregular cable pressing head (4), product contour positioning base (5), base plate (6), tooling anti-slip support leg (7), irregular cable placement base (8), manual air valve switch (9), tooling nameplate (11), slide groove limit block a (12), slide groove limit block b (13), slide rail (15), movable slide rail seat (16), cable pressing head bracket (17) and cylinder bracket (18); The bottom of the base plate (6) is provided with multiple tooling anti-slip support legs (7), and the top is equipped with a slide rail (15) along the length direction. The product contour positioning base (5) is fixed on the base plate (6); the slide groove limiting block a (12) and slide groove limiting block b (13) are symmetrically arranged at both ends of the slide rail (15); The irregular cable placement base (8) and the cable head bracket (17) form a cable installation device; The cable clamp bracket (17) is Z-shaped, with a non-shaped cable clamp (4) installed at the bottom of one end; the other end is connected to the movable slide rail seat (16); The irregular cable placement base (8) is set on the base plate (6) at the front end of the product contour positioning base (5), and the irregular cable placement base (8) is provided with a clearance groove (10), which is used to accommodate the cable bundle and prevent it from being crushed. The cylinder (1), cylinder pressing head (2), rotary pressing connecting rod (3) and movable slide rail seat (16) constitute a pressing device; the cylinder (1) is vertically fixed on the base plate (6) by an L-shaped cylinder bracket (18); The movable slide rail seat (16) is mounted on the slide rail (15) and is slidably connected to the slide rail (15); The rotary pressing connecting rod (3) is installed on the cable head bracket (17) above the irregular cable head (4); The cable head support (17) moves along the slide rail (15) via the movable slide rail seat (16). The slide groove limiting block a (12) and slide groove limiting block b (13) are used to limit the longitudinal displacement of the cable head support (17) on the slide rail (15) to prevent overtravel operation. The cable clamp bracket (17) drives the pressing device to enter or exit the speaker housing; The manual air valve switch (9) is located on the side of the base plate (6) and is pneumatically connected to the cylinder (1) to control its lifting action; The irregular cable pressure head (4) is coaxially aligned with the rotary pressing connecting rod (3) and the cylinder pressing head (2); The speaker housing (20) is placed on the contour positioning base (5). The position of the speaker housing (20) is adjusted so that its horn mouth is correspondingly set with the cable head bracket (17) and fixed by gravity pressure of the irregular cable head (4). By pushing the movable slide rail seat (16), the irregular cable head (4) on the cable head bracket (17) is inserted into the speaker housing and aligned with the mushroom head rubber plug (21). The manual air valve switch (9) drives the cylinder (1) to press down, and the pressure is transmitted through the rotary pressing connecting rod (3). The irregular cable pressure head (4) presses the mushroom head rubber plug (21) of the audio cable vertically into the cable mounting hole (22) of the housing, and the clearance groove (10) ensures the position accuracy of the wire harness.

2. The pneumatic pressing fixture for the audio cable after welding the NB8 speaker housing according to claim 1, characterized in that: The tooling anti-slip support leg (7) is a height-adjustable rubber support leg, and the level of the base plate (6) can be adjusted by the threaded knob.

3. The pneumatic pressing fixture for the audio cable after welding the NB8 speaker housing according to claim 1, characterized in that: The irregular cable head (4) is detachably connected to the cable head bracket (17) through a snap-fit ​​structure, and is compatible with mushroom-shaped rubber plugs (21) of different sizes.

4. The pneumatic pressing fixture for the audio cable after welding the NB8 speaker housing according to claim 1, characterized in that: The connection between the rotary pressing connecting rod (3) and the movable slide rail seat (16) is provided with a bushing to ensure the smoothness of the pressing action.

5. The pneumatic pressing fixture for the audio cable after welding the NB8 speaker housing according to claim 1, characterized in that: The size of the recessed groove (10) matches the audio cable harness to avoid damage to the harness during the pressing process.

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