Punching device for automotive interior panel

Abstract

The utility model provides a kind of punching device for automotive interior trim panel, it is related to automotive interior trim panel punching technical field, including inner core, the inner core top edge detachably installs rotating ring, rotating ring outside side rotation is connected with the sawtooth cylinder of being set in the surface of inner core and coaxial distribution, the inner core bottom end is inlayed and is provided with several spring rods of being distributed in annular array around sawtooth cylinder center axis, several spring rods telescopic end downward and fixedly installed have thorn, utilize gear ring to drive sawtooth cylinder relative rotating ring rotation, i.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior panel punching technology, and in particular to a punching device for automotive interior panels. Background Technology

[0002] The punching process for automotive interior panels is a crucial step in automotive parts manufacturing. Therefore, a punching device for automotive interior panels, disclosed in CN220409020U, is described. During punching, the automotive interior panel is placed between cleaning devices in the center of a workbench. Two first fixed blocks approach each other. When the two first fixed blocks approach the automotive interior panel, two first pressure sensors within the first fixed blocks sense sufficient pressure. The threaded rod rotates, causing a second moving block to move downwards, which in turn moves a clamping plate downwards to press the automotive interior panel. A hydraulic cylinder extends, causing a mounting plate to move the punching head downwards to punch the automotive interior panel. After punching is complete, the hydraulic cylinder retracts.

[0003] However, interior trim panels are typically made of plastics, composite materials, etc., which are prone to tearing under significant stress. Especially when the material lacks sufficient toughness, the impact force of the punch can directly cause the material to tear at the punching location. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a punching device for automotive interior panels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a punching device for automotive interior panels, comprising an inner core, a rotating ring detachably mounted on the top edge of the inner core, a serrated cylinder rotatably connected to the outer edge of the rotating ring and coaxially distributed on the surface of the inner core, a plurality of spring rods arranged in a circular array around the central axis of the serrated cylinder embedded in the bottom end of the inner core, the telescopic ends of the plurality of spring rods facing downward and fixedly mounted with spikes, a bracket inserted into the inner wall of the serrated cylinder near the bottom end, an impact arm rotatably connected to the bottom of the bracket, and an electric telescopic rod detachably mounted to the impact arm and used to drive the impact arm to rise and fall embedded in the center of the bottom end of the inner core.

[0006] Preferably, a toothed ring is fixedly installed on the top surface of the serrated cylinder, which is coaxially distributed and rotatably connected to the inner core, and a spur gear that meshes with the toothed ring is embedded in the upper surface of the inner core.

[0007] Preferably, the spur gear tooth surface is inserted into the inner tooth surface of the gear ring, and a motor for driving the spur gear to rotate is fixedly installed inside the inner core.

[0008] Preferably, the spring rod passes through the surface of the impact arm.

[0009] Preferably, a flange seat for connecting a hydraulic cylinder is fixedly installed at the center of the top end of the inner core.

[0010] Preferably, a housing is embedded in the center of the bottom end of the impact arm, and a protrusion that plugs into the housing is fixedly installed at the telescopic end of the electric telescopic rod.

[0011] Preferably, the edge of the insert housing is provided with several bolts that are threadedly connected to the impact arm, and the center of the bottom edge of the insert housing is also provided with a bolt, and the bolt at the center position is threadedly connected to the bottom edge of the protrusion.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the toothed ring drives the sawtooth cylinder to rotate relative to the rotating ring. That is, during the inner core descent punching process, the rotating sawtooth cylinder first cuts the interior panel. By reducing the thickness of the edge near the punching, the stress is reduced, making the edge fragile, which facilitates punching separation and avoids tearing of the interior panel during the punching process.

[0014] 2. In this utility model, the spikes are lower than the bottom opening of the serrated cylinder, that is, the spikes contact the interior panel before the serrated cylinder, and the inner core cannot rotate. Therefore, the contact action between the spikes and the interior panel can prevent the thinner interior panel from twisting during the rotation and contact process of the serrated cylinder. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a punching device for automotive interior panels;

[0016] Figure 2 This utility model proposes a punching device for automotive interior panels. Figure 1 A top-view structural diagram;

[0017] Figure 3 This utility model proposes a punching device for automotive interior panels. Figure 1 A schematic diagram of the cross-sectional structure;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] Legend: 1. Serrated cylinder; 2. Inner core; 3. Flange seat; 4. Rotating ring; 5. Gear ring; 6. Spur gear; 7. Motor; 8. Insert bracket; 9. Electric telescopic rod; 10. Spring rod; 11. Impact arm; 12. Spike; 13. Protrusion; 14. Insert shell; 15. Bolt. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] like Figures 1-4 As shown, a punching device for automotive interior panels includes an inner core 2. A flange seat 3 for connecting a hydraulic cylinder is fixedly installed at the top center of the inner core 2. In actual use, this device replaces the "punching head" in the prior art patent. The flange seat 3 is used to connect with the "hydraulic cylinder" to achieve position fixation. Therefore, the relevant parts that need to cooperate with the inner core 2 during the punching process are not shown. The parts or related structures in the prior art solution other than the "punching head" can be used directly.

[0023] A rotating ring 4 is detachably installed on the top edge of the inner core 2. A serrated cylinder 1 is rotatably connected to the outer edge of the rotating ring 4 and is sleeved on the surface of the inner core 2 and coaxially distributed. The serrated part of the serrated cylinder 1 faces downward. A toothed ring 5 is fixedly installed on the inner top surface of the serrated cylinder 1 and is coaxially distributed and rotatably connected to the inner core 2. A spur gear 6 is embedded in the upper surface of the inner core 2 and meshes with the toothed ring 5. The tooth surface of the spur gear 6 is inserted into the inner tooth surface of the toothed ring 5, and a motor 7 for driving the spur gear 6 to rotate is fixedly installed in the inner core 2. The rotating ring 4 is fixedly connected to the top of the inner core 2 by bolts. Therefore, the personnel can select the corresponding diameter of the serrated cylinder 1 according to the required hole diameter. The motor 7 drives the spur gear 6 to rotate, and the meshing toothed ring 5 drives the serrated cylinder 1 to rotate relative to the rotating ring 4. That is, during the process of the inner core 2 descending to punch the hole, the rotating serrated cylinder 1 is used to cut the interior panel first. By reducing the thickness of the edge near the punch, the stress is reduced, making the edge fragile and facilitating the punch separation.

[0024] The bottom end of the inner core 2 is embedded with several spring rods 10 arranged in a ring around the central axis of the serrated cylinder 1. The spring rods 10 pass through the surface of the impact arm 11. The telescopic ends of several spring rods 10 face downward and are fixedly installed with spikes 12. Under normal circumstances, the spikes 12 are lower than the lower opening of the serrated cylinder 1, that is, the spikes 12 contact the interior panel of the serrated cylinder 1 first, and the inner core 2 cannot rotate. Therefore, the contact action between the spikes 12 and the interior panel can prevent the thinner interior panel from twisting during the rotation contact process of the serrated cylinder 1. As the inner core 2 continues to descend, the corresponding spring rods 10 will continuously contract.

[0025] A bracket 8 is inserted into the inner wall of the serrated cylinder 1 near the bottom. An impact arm 11 is rotatably connected to the bottom of the bracket 8. The rotation of the serrated cylinder 1 causes the bracket 8 to rotate relative to the impact arm 11. An electric telescopic rod 9, which is detachably installed with the impact arm 11 and is used to drive the impact arm 11 to rise and fall, is embedded in the center of the bottom of the inner core 2. A housing 14 is embedded in the center of the bottom of the impact arm 11. A protrusion 13 that is inserted into the housing 14 is fixedly installed at the telescopic end of the electric telescopic rod 9. Several bolts 15 that are threadedly connected to the impact arm 11 are provided through the edge of the housing 14. Bolts 15 are also provided through the center of the bottom edge of the housing 14, and the bolts 15 at the center are threadedly connected to the bottom edge of the protrusion 13. The bolts 15 can be used to fix the housing 14 to the impact arm 11 and to the protrusion 13. Therefore, by extending the electric telescopic rod 9 to push the housing 14 and drive the impact arm 11 to move downward, the perforated interior panel can be removed.

[0026] Working principle: After the inner core 2 is fixed in position, the inner core 2 descends until the spikes 12 on the surface abut against the surface of the interior panel. Then, the motor 7 drives the spur gear 6 to rotate, and the meshing gear ring 5 drives the sawtooth cylinder 1 to rotate relative to the rotating ring 4. That is, during the process of the inner core 2 descending and punching, the rotating sawtooth cylinder 1 first cuts the interior panel, and after the edge of the interior panel near the punching hole is thinned, the electric telescopic rod 9 extends and pushes the insert shell 14 to drive the impact arm 11 to move downward, so that the punched part of the interior panel can be removed.

[0027] The wiring diagrams of the electric telescopic pole 9 and the motor 7 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the electric telescopic pole 9 and the motor 7 will not be explained in detail.

[0028] 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. A punching device for automotive interior panels, characterized in that: The device includes an inner core (2), on the top edge of which a rotating ring (4) is detachably mounted. A serrated cylinder (1) is rotatably connected to the outer side of the rotating ring (4) and is coaxially distributed and sleeved on the surface of the inner core (2). A number of spring rods (10) arranged in a ring array around the central axis of the serrated cylinder (1) are embedded in the bottom end of the inner core (2). The telescopic ends of the spring rods (10) face downward and are fixedly mounted with spikes (12). A bracket (8) is inserted into the inner wall of the serrated cylinder (1) near the bottom end. An impact arm (11) is rotatably connected to the bottom of the bracket (8). An electric telescopic rod (9) is detachably mounted to the impact arm (11) and used to drive the impact arm (11) to rise and fall.

2. The punching device for automotive interior panels according to claim 1, characterized in that: The sawtooth cylinder (1) has a toothed ring (5) that is coaxially distributed and rotatably connected to the inner core (2) fixedly installed on its inner top surface. The inner core (2) has a spur gear (6) that meshes with the toothed ring (5) embedded in its upper surface.

3. The punching device for automotive interior panels according to claim 2, characterized in that: The tooth surface of the spur gear (6) is inserted into the inner tooth surface of the gear ring (5), and a motor (7) for driving the spur gear (6) to rotate is fixedly installed inside the inner core (2).

4. The punching device for automotive interior panels according to claim 1, characterized in that: The spring rod (10) passes through the surface of the impact arm (11).

5. The punching device for automotive interior panels according to claim 1, characterized in that: The inner core (2) has a flange seat (3) fixedly installed at the top center for connecting the hydraulic cylinder.

6. The punching device for automotive interior panels according to claim 1, characterized in that: The impact arm (11) has a housing (14) embedded in the center of its bottom end, and the electric telescopic rod (9) has a protrusion (13) fixedly installed at its telescopic end to be inserted into the housing (14).

7. The punching device for automotive interior panels according to claim 6, characterized in that: The edge of the insert (14) is provided with several bolts (15) that are threaded to the impact arm (11), and the center of the bottom edge of the insert (14) is also provided with bolts (15), and the bolts (15) at the center are threaded to the bottom edge of the protrusion (13).

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