Riveting tool for chassis of electric horn

By designing a riveting fixture for the electric horn chassis and utilizing an automatic positioning system to achieve the self-rotation alignment of the horn frame, the problem of slow alignment speed of positioning holes in electric horn production was solved, thus improving production efficiency.

CN224101757UActive Publication Date: 2026-04-10ZHEJIANG GUJIU AUTO ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GUJIU AUTO ELECTRIC APPLIANCE CO LTD
Filing Date
2025-07-15
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In current electric horn production, the riveting operation between the chassis and the horn frame is limited by the alignment speed of the positioning holes, which leads to low production efficiency, especially for unskilled workers.

Method used

An electric horn chassis riveting fixture was designed, comprising an automatic positioning system consisting of a chassis positioning device, a hydraulic actuator, a pneumatic gripper, an electric turntable, and rollers. The rollers drive the horn frame to rotate, achieving automatic alignment with the positioning holes, and the hydraulic actuator completes the riveting.

Benefits of technology

It improves the positioning efficiency of the speaker frame, increases production efficiency, reduces manual alignment time, and is suitable for mass production of electric speakers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mechanical equipment, and discloses an electric horn chassis riveting tool which comprises a chassis positioning device, a hydraulic press is arranged above the chassis positioning device, a lifting hydraulic rod is fixedly installed on a shell of the hydraulic press, a pneumatic clamping jaw is fixedly installed on the lifting hydraulic rod, and an electric rotary table is correspondingly arranged on one side of the hydraulic press. A plurality of swing arms are fixedly installed on the electric rotary table in the circumferential direction, a tray is fixedly installed at the tail end of the outer side of each swing arm, a limiting barrel is fixedly installed on the tray, a plurality of positioning rods are fixedly installed on the tray in the limiting barrel, a plurality of rollers are arranged above the limiting barrel around the central axis of the limiting barrel, and each roller is rotationally connected to the tray. The rollers are in transmission connection with the driving mechanism. According to the utility model, the horn basin stand automatic positioning structure consisting of the limiting cylinder, the positioning rod, the roller and the like is arranged, so that the horn basin stand can be automatically positioned, and the efficiency is higher compared with a mode of manually positioning the horn basin stand.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, more specifically, the utility model relates to a kind of electric horn chassis riveting tool. BACKGROUND

[0002] All cars are equipped with horn, to warn pedestrians and other vehicles, to attract attention, ensure driving safety, horn is divided into two categories according to the sound power, air horn and electric horn. Among them, in the process of electric horn production, chassis and horn frame need to be fixed together, the existing fixing mode is mainly to position chassis by chassis positioning device, after gluing, the positioning hole at the bottom of horn frame is aligned with the riveting piece on chassis, then horn frame is placed, and then hydraulic pressure is controlled to rivet horn frame and chassis together, in the process of placing, the positioning hole at the bottom of horn frame needs to be manually aligned with the riveting piece on chassis, so that riveting operation is subject to alignment speed, especially for some unskilled workers, which further reduces production efficiency. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an electric horn chassis riveting tool to solve the problems raised in the background.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an electric horn chassis riveting tool, comprising a chassis positioning device, a hydraulic pressure is arranged above the chassis positioning device, a pressure head is fixedly installed on the output end of the hydraulic pressure, a lifting hydraulic rod is fixedly installed on the shell of the hydraulic pressure, a pneumatic clamp jaw is fixedly installed on the output end of the lifting hydraulic rod, an electric turntable is correspondingly arranged on one side of the hydraulic pressure, a plurality of swing arms are fixedly installed on the electric turntable in a circumferential direction, one tray is fixedly installed at the outer end of each swing arm, a limiting cylinder is fixedly installed on the tray, a plurality of positioning rods are fixedly installed on the tray in the limiting cylinder, a plurality of rollers are arranged around the central axis of the limiting cylinder above the limiting cylinder, each roller is rotatably connected to the tray, and the rollers are drivingly connected to a driving mechanism.

[0005] As a preferred technical scheme of the utility model, the pneumatic clamp jaw comprises two air cylinders, the two air cylinders are symmetrically arranged, the two air cylinders are fixed on the lifting hydraulic rod through a support, and a clamping plate is fixed on the output end of each air cylinder.

[0006] As a preferred technical scheme of the utility model, the number of rollers is not less than two, and the rollers are provided with rubber sleeves.

[0007] As a preferred technical scheme of the utility model, the top end of the positioning rod is semispherical.

[0008] As a preferred technical scheme of the utility model, the driving mechanism comprises a rotating shaft, the bottom end of each rotating shaft is rotationally connected to the tray, one sub gear is coaxially fixedly installed on each rotating shaft, the sub gears are in mesh with the inner tooth ring, and the inner tooth ring is drivingly connected with a driving motor.

[0009] As a preferred technical scheme of the utility model, the bottom end of the inner tooth ring is coaxially fixed with a connecting cylinder, and the bottom end of the connecting cylinder is rotationally connected to the tray.

[0010] As a preferred technical scheme of the utility model, the inner wall of the limiting cylinder is polished.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] By being provided with multiple trays, one loudspeaker basket automatic positioning structure composed of a limiting cylinder, a positioning rod and a roller is installed on each tray, when the loudspeaker basket is placed into the tray, the driving mechanism is started, the multiple rollers of the driving mechanism rotate synchronously, the rotating roller drives the loudspeaker basket body to rotate by friction, in the process of rotation, when the positioning hole in the bottom of the loudspeaker basket is aligned with the positioning rod, the loudspeaker basket falls, so that the positioning rod can be inserted into the positioning hole in the bottom of the loudspeaker basket, so that the positioning of the loudspeaker basket is completed, and the efficiency is higher relative to the manual positioning mode. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the utility model discloses a kind of electric loudspeaker chassis riveting tool;

[0014] Figure 2 It is a partial structure schematic view of the utility model discloses a kind of electric loudspeaker chassis riveting tool;

[0015] Figure 3 It is a tray surface structure schematic view of the utility model discloses a kind of electric loudspeaker chassis riveting tool;

[0016] Figure 4 It is a schematic view of the utility model discloses a kind of electric loudspeaker chassis riveting tool, and loudspeaker basket bottom positioning hole inserts positioning rod process Figure 1 ;

[0017] Figure 5 It is a schematic view of the utility model discloses a kind of electric loudspeaker chassis riveting tool, and loudspeaker basket bottom positioning hole inserts positioning rod process Figure 2 .

[0018] In the diagram: 1. Chassis positioning device; 2. Hydraulic unit; 3. Lifting hydraulic rod; 4. Pneumatic gripper; 5. Electric turntable; 6. Pallet; 7. Limiting cylinder; 8. Positioning rod; 9. Roller; 10. Rotating shaft; 11. Secondary gear; 12. Drive motor; 13. Connecting cylinder; 14. Internal gear ring; 15. Horn frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides a riveting fixture for an electric horn chassis, including a chassis positioning device 1, a hydraulic unit 2 above the chassis positioning device 1, a pressure head fixedly installed on the output end of the hydraulic unit 2, a lifting hydraulic rod 3 fixedly installed on the outer shell of the hydraulic unit 2, a pneumatic gripper 4 fixedly installed on the output end of the lifting hydraulic rod 3, an electric turntable 5 correspondingly installed on one side of the hydraulic unit 2, several swing arms fixedly installed circumferentially on the electric turntable 5, a tray 6 fixedly installed at the outer end of each swing arm, a limiting cylinder 7 fixedly installed on the tray 6, several positioning rods 8 fixedly installed on the tray 6 inside the limiting cylinder 7, several rollers 9 arranged around the central axis above the limiting cylinder 7, each roller 9 rotatably connected to the tray 6, and each roller 9 is connected to a drive mechanism for transmission. The drive mechanism is used to drive the rollers 9 to rotate synchronously, so that the rollers 9 can drive the horn frame placed inside the limiting cylinder 7 to rotate.

[0021] As attached Figure 2 As shown, the pneumatic gripper 4 includes two cylinders, which are symmetrically arranged and fixed to the lifting hydraulic rod 3 by a bracket. A clamping plate is fixed to the output end of each cylinder. The two clamping plates can clamp the speaker frame from both sides, bypassing the roller 9, thereby preventing the roller 9 from interfering with the gripping process of the pneumatic gripper 4.

[0022] There are at least two rollers 9, and each roller 9 is covered with a rubber sleeve. By setting at least two rollers 9 and providing rubber sleeves on the rollers 9, the pushing force generated by the multiple rollers 9 on the speaker frame during rotation can be increased, making the rotation of the speaker frame easier.

[0023] The top of the positioning rod 8 is hemispherical. The hemispherical shape of the top of the positioning rod 8 can greatly reduce its contact area with the bottom surface of the speaker frame, so that the friction force experienced by the speaker frame during rotation is smaller.

[0024] The driving mechanism comprises rotating shafts 10, the bottom ends of the rotating shafts 10 are coaxially fixedly connected with the bottom ends of the rollers 9, the bottom ends of the rotating shafts 10 are rotationally connected on the tray 6, one sub-gear 11 is coaxially fixedly installed on each rotating shaft 10, the sub-gears 11 are all in mesh with an inner tooth ring 14, and the inner tooth ring 14 is drivingly connected with a driving motor 12. The driving motor 12 is fixed on the tray 6, a main gear in mesh with the inner tooth ring 14 is fixedly installed on the output shaft of the driving motor 12, the driving motor 12 drives the inner tooth ring 14 to rotate through the main gear, the inner tooth ring 14 synchronously drives the plurality of sub-gears 11 to rotate, and then the plurality of rotating shafts 10 are synchronously rotated, so that the plurality of rollers 9 can be synchronously rotated.

[0025] The bottom end of the inner tooth ring 14 is coaxially fixed with a connecting cylinder 13, and the bottom end of the connecting cylinder 13 is rotationally connected on the tray 6.

[0026] The inner wall of the limiting cylinder 7 is polished. The limiting cylinder 7 that is polished can greatly reduce the friction between the limiting cylinder 7 and the horn stand, so that the horn stand can more easily rotate in the limiting cylinder 7.

[0027] In use, the bottom disc to be riveted is placed on the bottom disc positioning device 1 after being coated with glue, then the operator places any one horn stand 15 on the limiting cylinder 7 on any one tray 6, at this time, as shown in the accompanying drawings Figures 4-5As shown, the top edge of the horn yoke 15 placed in the limiting cylinder 7 is in contact with the plurality of rollers 9 arranged above the limiting cylinder 7, and in the process, when the horn yoke 15 is placed and the positioning hole at the bottom of the horn yoke 15 is not aligned with the positioning rod 8 in the limiting cylinder 7, the positioning rod 8 will lift the horn yoke 15, and then the driving mechanism is started to synchronously rotate the plurality of rollers 9, and the rotating rollers 9 drive the horn yoke 15 to rotate by friction, and in the process of rotation, when the positioning hole at the bottom of the horn yoke 15 is aligned with the positioning rod 8, the horn yoke 15 falls, so that the positioning rod 8 can be inserted into the positioning hole at the bottom of the horn yoke 15, thus completing the positioning of the horn yoke 15, and then the electric rotating table 5 is started to rotate the positioned horn yoke 15 to be directly below the hydraulic device 2, and then the lifting hydraulic rod 3 pushes the pneumatic clamping jaw 4 to move downward to surround the horn yoke 15, the pneumatic clamping jaw 4 clamps the horn yoke 15, and then the lifting hydraulic rod 3 is controlled to move upward, so that the pneumatic clamping jaw 4 moves the clamped horn yoke 15 out of the tray 6, and finally the electric rotating table 5 is started to rotate the tray 6 out, and then the lifting hydraulic rod 3 is controlled to move downward, so that the pneumatic clamping jaw 4 places the clamped horn yoke 15 on the bottom plate of the bottom plate positioning device 1, so that the riveting piece on the bottom plate can pass through the positioning hole at the bottom of the horn yoke 15, and after the positioning of the bottom plate of the bottom plate positioning device 1 is completed, the riveting piece on the bottom plate is in one-to-one correspondence with the positioning rod 8 at the position where the tray 6 passes above, and then the hydraulic device 2 is controlled to push the pressing head to press downward, so that the riveting piece on the bottom plate is flattened, and the riveting of the bottom plate and the horn yoke 15 is completed.

[0028] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electric horn chassis riveting tooling comprising chassis positioning device (1) characterized by: The bottom plate positioning device (1) is provided with a hydraulic device (2) above, a pressure head is fixedly installed on the output end of the hydraulic device (2), a lifting hydraulic rod (3) is fixedly installed on the shell of the hydraulic device (2), a pneumatic clamp jaw (4) is fixedly installed on the output end of the lifting hydraulic rod (3), an electric rotary table (5) is correspondingly arranged on one side of the hydraulic device (2), a plurality of swing arms are fixedly installed on the electric rotary table (5) in a circumferential direction, one tray (6) is fixedly installed on the outer end of each swing arm, a limiting cylinder (7) is fixedly installed on the tray (6), a plurality of positioning rods (8) are fixedly installed on the tray (6) in the limiting cylinder (7), a plurality of rollers (9) are arranged around the central axis of the limiting cylinder (7) above, each roller (9) is rotationally connected to the tray (6), and the rollers (9) are in driving connection with a driving mechanism.

2. The electric horn chassis riveting tool according to claim 1, characterized in that: The pneumatic clamp jaw (4) comprises two air cylinders, the two air cylinders are symmetrically arranged, the two air cylinders are fixed on the lifting hydraulic rod (3) through a support, and each of the two air cylinders is fixed with a clamping plate on the output end.

3. The electric horn chassis riveting tool according to claim 1, characterized in that: The number of the rollers (9) is not less than two, and the rollers (9) are provided with rubber sleeves.

4. The electric horn chassis riveting tool according to claim 1, characterized in that: The top end of the positioning rod (8) is in a semispherical shape.

5. The electric horn chassis riveting tool according to claim 1, wherein: The driving mechanism comprises a rotating shaft (10), the rotating shaft (10) is coaxially and fixedly connected to the bottom end of each roller (9), the bottom end of each rotating shaft (10) is rotationally connected to the tray (6), a secondary gear (11) is coaxially and fixedly installed on each rotating shaft (10), the secondary gears (11) are in meshing connection with an internal tooth ring (14), and the internal tooth ring (14) is in driving connection with a driving motor (12).

6. The electric horn chassis riveting tool according to claim 5, wherein: The bottom end of the internal tooth ring (14) is coaxially fixed with a connecting cylinder (13), and the bottom end of the connecting cylinder (13) is rotationally connected to the tray (6).

7. The electric horn chassis riveting tool according to claim 5, wherein: The inner wall of the limiting cylinder (7) is polished.