A vehicle bushing flanging apparatus

By introducing pressure sensors and swing arm detection mechanisms into the automotive bushing flanging equipment, the status of the flanging punch can be monitored in real time, solving the problem of failure to detect flanging punch damage in a timely manner, enabling timely replacement of the punch, reducing the risk of scrap and rework, and improving production efficiency.

CN224406151UActive Publication Date: 2026-06-26WUHU XIONGXING HARDWARE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU XIONGXING HARDWARE PROD CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, damage to the flanging punch cannot be monitored in real time, leading to the risk of scrapping or rework of the entire batch of products.

Method used

Using a pressure sensor and a swing arm detection mechanism, the deformation and breakage of the flanging punch are detected to monitor the punch status in real time. The self-rotation detection of the flanging punch is realized through the installation mechanism, and the damage of the punch is judged by the change of pressure sensor value.

Benefits of technology

This enabled timely replacement of the flanging punch, reducing the amount of scrap and rework, and improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of automobile bushing flanging equipment, it is related to automobile bushing flanging technical field, including tooling frame, the installation frame of longitudinal lifting is provided in tooling frame, several flanging punches are provided in the installation frame, detection mechanism is further provided on the installation frame, by setting pressure sensor and swing arm, utilize swing arm lower swing to realize that pressure sensor contacts the side surface of flanging punch after every time flanging, pressure sensor is clamped from spring rod and flanging punch two directions, when flanging punch is not deformed, broken, bent as a whole, every time value detected by pressure sensor does not change, and when flanging punch leads to deformation, broken, bending in a flanging process, the position of pressure sensor under detection state can change, so personnel can understand whether flanging punch is damaged in time by the value of pressure sensor, it is convenient to replace in early damage period, greatly reduce the number of scrap and rework intensity.
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Description

Technical Field

[0001] This utility model relates to the field of automotive bushing flanging technology, and in particular to an automotive bushing flanging device. Background Technology

[0002] An automotive bushing flange is a flange structure extending outward from the end of the bushing, used for positioning, limiting, sealing, or enhancing installation stability. Therefore, an automotive bushing flange device, with publication number CN222944262U, is described. In use, the automotive bushing to be flanged is placed on the bushing holder. The drive cylinder moves the mounting frame downward, causing the flanged punch to move downward synchronously to complete the flanged operation. If the flanged punch is accidentally damaged, it can be replaced. For replacement, first remove the corresponding positioning pin, then move the insert on the flanged punch away from the slot to complete disassembly. After disassembly, release the limiting position of the rotating rod, then rotate the handle to make the rotating rod rotate synchronously. The rotating rod drives the hexagonal mounting plate to rotate synchronously. When the next flanged punch rotates to the previously damaged flanged punch, the sliding rod is released. The restoring force of the compression spring can again limit the rotating rod, allowing workers to quickly replace the flanged punch in a short time, thus further meeting the needs of workers.

[0003] In the existing technology, whether the flanging punch is damaged is judged by observing whether the bushing is successfully flanged. However, when the personnel discover that the punch is damaged, the punch has often been used for a period of time. Due to the lack of real-time monitoring, the defect will be continuously replicated in dozens or even hundreds of subsequent bushings, and the entire batch of products will face the risk of being scrapped or reworked. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an automotive bushing flanging device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive bushing flanging device, comprising a tooling frame, wherein a longitudinally lifting mounting frame is provided inside the tooling frame, wherein a plurality of flanging punches are provided inside the mounting frame, and wherein the mounting frame is further provided with;

[0006] The testing mechanism includes two symmetrically arranged swing arms that are respectively hinged to the bottom edges of the two sides of the mounting frame. A perforated plate is fixedly installed on the swing edge below the swing arms. At least two inserts are arranged from top to bottom on the opposite surfaces of the two perforated plates. A spring rod is fixedly installed on one side of each insert. A pressure sensor is fixedly installed on the telescopic end of the spring rod. The detection surface of the pressure sensor is used to abut against the surface of the flange punch located below the mounting frame.

[0007] Preferably, the detection mechanism further includes a gear shaft fixedly installed at the hinge of the swing arm, the gear shaft being horizontally arranged and having a rack vertically arranged and inserted into the outer wall of the mounting frame at its end.

[0008] Preferably, the top ends of the two racks are fixedly mounted with the same connecting strip, and an electric push rod is provided between the bottom edge of the connecting strip and the top edge of the mounting frame.

[0009] Preferably, the mounting frame is provided with;

[0010] The installation mechanism includes a horizontally set and rotatably installed installation shaft within the installation frame. One end of each of the flange punches is inserted into a socket, and a bevel gear is fixedly installed on the socket. One end of each bevel gear is rotatably installed on the circumferential surface of the installation shaft and is distributed in a ring array around the central axis of the installation shaft.

[0011] Preferably, the flange punch and the socket insertion part are arranged in a block shape and connected by a pin.

[0012] Preferably, the mounting shaft is rotatably connected to a bevel gear ring that is coaxially distributed and meshes with several bevel gears, and a straight gear ring is fixedly installed on one end edge of the bevel gear ring.

[0013] Preferably, the inner tooth surface of the spur gear ring is clearance-fitted with the surface of the mounting shaft, and the surface of the mounting shaft is provided with a spur gear that is driven by a motor and meshes with the inner tooth surface of the spur gear ring.

[0014] Preferably, the flanging punch is coaxially distributed with the bevel gear and the central axis of the flanging punch is perpendicular to the central axis of the mounting shaft.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting a pressure sensor and a swing arm, the pressure sensor contacts the side of the flanging punch after each flanging by using the downward swing of the swing arm. The pressure sensor is subjected to clamping forces from both the spring rod and the flanging punch. When the flanging punch is not deformed, broken, or bent, the value detected by the pressure sensor will not change each time. However, when the flanging punch is deformed, broken, or bent during a flanging process, the position of the pressure sensor will change in the detection state. Therefore, personnel can use the value of the pressure sensor to understand in time whether the flanging punch is damaged, which is convenient for replacement in the early stage of damage. At this time, there is only one damaged bushing, which greatly reduces the number of scrapped items and the intensity of rework.

[0017] 2. In this utility model, by setting up an installation mechanism, the bevel gear drives the socket and the internally inserted flanging punch to rotate, so that the pressure sensor can detect the circumferential surface of the flanging punch. This makes it easier to further determine whether the flanging punch is damaged by reading the fluctuation of the pressure sensor value. Attached Figure Description

[0018] Figure 1This utility model provides a three-dimensional structural schematic diagram of an automotive bushing flanging device;

[0019] Figure 2 This utility model provides a structural schematic diagram of an automotive bushing flanging equipment mounting frame;

[0020] Figure 3 This utility model proposes an automotive bushing flanging device. Figure 2 A schematic diagram of the structure viewed from below;

[0021] Figure 4 This utility model proposes an automotive bushing flanging device. Figure 2 A schematic diagram of the cross-sectional structure;

[0022] Figure 5 This utility model proposes an automotive bushing flanging device. Figure 1 A schematic diagram of the right-side structure.

[0023] Legend: 1. Tooling frame; 2. Mounting frame; 3. Connecting strip; 4. Electric push rod; 5. Gear shaft; 6. Rack; 7. Swing arm; 8. Hollow plate; 9. Spring rod; 10. Insert; 11. Flanging punch; 12. Mounting shaft; 13. Pressure sensor; 14. Socket; 15. Bevel gear; 16. Bevel gear ring; 17. Straight gear ring; 18. Straight gear. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] like Figures 1-5 As shown, an automotive bushing flanging device includes a tooling frame 1, a longitudinally lifting mounting frame 2 is provided inside the tooling frame 1, and a plurality of flanging punches 11 are provided inside the mounting frame 2. The lifting method of the mounting frame 2 inside the tooling frame 1 in this solution has been disclosed in the prior art. For details, refer to the automotive bushing flanging device with publication number CN222944262U, that is, the mounting frame 2 is moved down by installing a drive cylinder inside the tooling frame 1.

[0027] The mounting frame 2 is also equipped with a detection mechanism. The detection mechanism includes two symmetrically arranged swing arms 7, each hinged to the bottom edge of one of the two sides of the mounting frame 2. A perforated plate 8 is fixedly installed on the swing edge below the swing arms 7. At least two inserts 10 are arranged from top to bottom on the opposite surfaces of the two perforated plates 8. The inserts 10 are inserted into the perforated parts of the perforated plate 8. The part of the insert 10 that passes through the perforated part of the perforated plate 8 is set as a screw. By screwing nuts onto the perforated plate 8, the surface of the perforated plate 8 is clamped, thus fixing the position of the insert 10. Depending on the length of the flange punch 11, the operator can adjust the position of the insert 10 by inserting it into the perforated parts of the perforated plate 8 at different heights. A spring rod 9 is fixedly installed on one side of the plug-in 10. A pressure sensor 13 is fixedly installed on the telescopic end of the spring rod 9. The detection surface of the pressure sensor 13 is used to abut against the surface of the flanging punch 11 located below the mounting frame 2. When the pressure sensor 13 is in contact with the surface of the flanging punch 11, as the swing arm 7 continues to swing down to a vertical position, the corresponding spring rod 9 will elastically contract. At this time, the pressure sensor 13 is subjected to clamping forces from both the spring rod 9 and the flanging punch 11, that is, the pressure sensor 13 generates a pressure value. After each use of the flanging punch 11, the pressure sensor 13 swings down with the swing arm 7 to adhere to the surface of the flanging punch 11. When the entire flanging punch 11 is in contact with the surface of the flanging punch 11, the pressure sensor 13 generates a pressure value. When the pressure sensor 13 remains unchanged regardless of deformation, breakage, or bending, the measured value will not change. However, when the flanging punch 11 deforms, breaks, or bends during a flanging process, the position of the pressure sensor 13 will change, meaning it may shift left or right. Consequently, the reaction force exerted by the spring rod 9 and the flanging punch 11 on the pressure sensor 13 will change, resulting in a change in the measured pressure value. This allows personnel to inspect the flanging punch 11 after each use, facilitating the identification and replacement of damaged punches. The inspection mechanism also includes a gear shaft 5 fixedly mounted at the hinge of the swing arm 7, with the gear shaft 5 horizontally... A rack 6 is vertically positioned and inserted into the outer wall of the mounting frame 2, with the end of the gear shaft 5 meshing with it. The top of the two racks 6 are fixedly mounted with the same connecting strip 3. An electric push rod 4 is set between the bottom edge of the connecting strip 3 and the top edge of the mounting frame 2. By retracting the electric push rod 4, the connecting strip 3 drives the rack 6 to move downward, thereby enabling the meshing gear shaft 5 to drive the swing arm to swing upward. This facilitates the downward movement of the mounting frame 2 and avoids interference from the pressure sensor 13 when the bushing is flanged using the flange punch 11 below. Conversely, by extending the electric push rod 4 to push the connecting strip 3 and rack 6 upward, the swing arm 7 can swing downward, allowing the pressure sensor 13 to fit against the flange punch 11.

[0028] An installation mechanism is provided within the mounting frame 2. The installation mechanism includes a horizontally positioned and rotatably mounted mounting shaft 12 within the mounting frame 2. Several flanging punches 11 have one end inserted into a socket 14. The insertion portion of the flanging punches 11 and socket 14 is block-shaped and connected by a pin, facilitating the disassembly and replacement of damaged flanging punches 11. A bevel gear 15 is fixedly mounted on the socket 14. The flanging punches 11 and bevel gears 15 are coaxially distributed, with the central axis of the flanging punches 11 perpendicular to the central axis of the mounting shaft 12. Several bevel gears 15 have one end rotatably mounted on the circumferential surface of the mounting shaft 12 and are arranged in a circular array around the central axis of the mounting shaft 12. A bevel gear ring 16, coaxially distributed and meshing with the bevel gears 15, is rotatably connected to the circumferential surface of the mounting shaft 12. A straight gear ring 17 is fixedly mounted on one edge of the bevel gear ring 16. The inner toothed surface of ring 17 is clearance-fitted with the surface of mounting shaft 12. The surface of mounting shaft 12 is provided with a spur gear 18 that is driven by a motor and meshes with the inner toothed surface of the spur gear ring 17. When the pressure sensor 13 detects the flanging punch 11, the spur gear 18 is driven to rotate by the motor, so that the meshing spur gear ring 17 drives the bevel gear ring 16 to rotate. This enables the meshing bevel gears 15 to drive the socket 14 and the flanging punch 11 inserted inside to rotate. This allows the pressure sensor 13 to detect the circumference of the flanging punch 11. When the flanging punch 11 is not deformed, broken, or bent, the value detected by the pressure sensor 13 will not change. However, when the flanging punch 11 is deformed, broken, or bent during a flanging process, the position of the pressure sensor 13 will change during the detection state.

[0029] Working principle: Before the bushing is flanged by the lowering of the mounting frame 2, the electric push rod 4 retracts, causing the connecting strip 3 to move the rack 6 downward. This allows the gear shaft 5 to engage and swing the swing arm upward, thereby moving the pressure sensor 13 to both sides of the mounting frame 2. The lowering of the mounting frame 2 allows the flanged punch 11 to flange the bushing. After the flange is completed and the mounting frame 2 rises and resets, the electric push rod 4 extends to push the connecting strip 3 and rack 6 upward, allowing the swing arm 7 to swing downward. This allows the pressure sensor 13 to come into contact with the flanged punch 11. The motor drives the spur gear 18 to rotate, causing the meshing spur ring 17 to drive the bevel ring 16 to rotate. This allows several meshing bevel gears 15 to drive the socket 14 and the internally inserted flanged punch 11 to rotate. By observing and analyzing the values ​​of the pressure sensor 13, it is possible to determine whether the flanged punch 11 is damaged, facilitating timely replacement.

[0030] The wiring diagrams for the pressure sensor 13, electric actuator 4, and motor in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts for the pressure sensor 13, electric actuator 4, and motor will not be explained in detail.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automotive bushing flanging device, comprising a tooling frame (1), wherein a longitudinally lifting mounting frame (2) is provided within the tooling frame (1), and a plurality of flanging punches (11) are provided within the mounting frame (2), characterized in that: The mounting frame (2) is also provided with; The testing mechanism includes two symmetrically arranged swing arms (7) that are respectively hinged to the bottom edge of the two sides of the mounting frame (2). A hollow plate (8) is fixedly installed on the swing edge below the swing arm (7). At least two plugs (10) are arranged from top to bottom on the opposite surfaces of the two hollow plates (8). A spring rod (9) is fixedly installed on one side of the plug (10). A pressure sensor (13) is fixedly installed on the telescopic end of the spring rod (9). The detection surface of the pressure sensor (13) is used to abut against the surface of the flange punch (11) located below the mounting frame (2).

2. The automotive bushing flanging equipment according to claim 1, characterized in that: The testing mechanism also includes a gear shaft (5) fixedly installed at the hinge of the swing arm (7). The gear shaft (5) is horizontally arranged and the end of the gear shaft (5) is meshed with a rack (6) that is vertically arranged and inserted into the outer wall of the mounting frame (2).

3. The automotive bushing flanging equipment according to claim 2, characterized in that: The two racks (6) are fixedly mounted with the same connecting strip (3) at their top ends, and an electric push rod (4) is provided between the bottom edge of the connecting strip (3) and the outer top edge of the mounting frame (2).

4. The automotive bushing flanging equipment according to claim 1, characterized in that: The mounting frame (2) is provided with; The installation mechanism includes a horizontally set and rotatably installed installation shaft (12) in the installation frame (2), one end of each of the flange punches (11) is inserted into a socket (14), a bevel gear (15) is fixedly installed on the socket (14), and one end of each of the bevel gears (15) is rotatably installed on the circumferential surface of the installation shaft (12) and distributed in a ring array around the central axis of the installation shaft (12).

5. The automotive bushing flanging equipment according to claim 4, characterized in that: The flange punch (11) and the socket (14) are arranged in a block shape and connected by a pin.

6. The automotive bushing flanging equipment according to claim 4, characterized in that: The mounting shaft (12) is rotatably connected to a bevel gear ring (16) that is coaxially distributed and meshes with several bevel gears (15). A straight gear ring (17) is fixedly installed on one end edge of the bevel gear ring (16).

7. The automotive bushing flanging equipment according to claim 6, characterized in that: The inner tooth surface of the spur ring (17) is clearance-fitted with the surface of the mounting shaft (12), and the surface of the mounting shaft (12) is provided with a spur gear (18) that is driven by a motor and meshes with the inner tooth surface of the spur ring (17).

8. The automotive bushing flanging equipment according to claim 4, characterized in that: The flanging punch (11) is coaxially distributed with the bevel gear (15), and the central axis of the flanging punch (11) is perpendicular to the central axis of the mounting shaft (12).