A bumper cutting device

By using a servo motor-driven gear system and a hydraulic telescopic rod to adjust the limit block, the problem of needing to adjust the position and the inconvenience of the limit device before cutting the bumper is solved. This achieves automatic positioning and rapid adaptation of the bumper, improving the applicability and efficiency of the cutting device.

CN224444945UActive Publication Date: 2026-07-03SHANGHAI MINGCHEN MOLDING TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MINGCHEN MOLDING TECH
Filing Date
2025-07-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing bumper cutting devices require adjustment of the bumper position to ensure it is centered on the worktable, and the limiting device is not easily adjustable to accommodate different bumper models.

Method used

A bumper cutting device was designed, which uses a servo motor to drive the active gear to drive the driven rack, and uses a pressing plate to fix the bumper in the middle of the operating table. The limiting device is adjusted by a hydraulic telescopic rod and a limiting block to adapt to the cutting needs of different bumper models.

Benefits of technology

It enables automatic positioning of the bumper in the center of the worktable, quick adjustment of the limit block position, adapting to the cutting needs of different bumper models, and improving the flexibility and efficiency of cutting.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224444945U_ABST
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Abstract

The utility model provides a bumper cutting device relates to bumper processing technical field, including support frame, one side of support frame is fixed with manipulator, the top of manipulator is fixed with laser cutting ware, the top of support frame is fixed with operation table, the upper side of one side in support frame middle part is passed through and is equipped with the placement groove, the upper side of support frame middle part is fixed with servo motor. The device is through placing bumper on the top of operation table, through servo motor drive driving gear rotates, and then drive two driven gear racks rotate, driving gear is located in the middle part of operation table, so that two driven gear racks can be same when moving the distance of moving, and the middle part is close to, the both ends of bumper on the top of operation table are extruded, and the bumper is extruded to the middle part of operation table through two extruding plates when deviating, thereby reach the effect that bumper is fixed and automatic position operation table middle part.
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Description

Technical Field

[0001] This utility model belongs to the field of bumper processing technology, and more specifically, it relates to a bumper cutting device. Background Technology

[0002] Car bumpers are safety devices that absorb and mitigate external impacts and protect the front and rear of the vehicle. Nowadays, in addition to maintaining their original protective functions, car bumpers also need to achieve harmony and unity with the vehicle's design and be lightweight. Therefore, it is necessary to cut out certain shapes of holes to install car radar.

[0003] Based on the above, the following problems were found: Existing bumper cutting usually involves fixing the bumper to a workbench and then using a robotic arm to control a laser cutter for cutting. Holes need to be cut for installing car radar, and they are usually arranged symmetrically. Before cutting the bumper, the position of the bumper needs to be adjusted to ensure that the bumper is in the center of the workbench. At the same time, the existing bumper limiting device usually has a fixed limiting position, which makes it very inconvenient to adjust the position of the limiting device when replacing different models of bumpers.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a bumper cutting device to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a bumper cutting device to address the issue that currently, before cutting a bumper, the position of the bumper needs to be adjusted to ensure that the bumper is located in the center of the operating table.

[0006] This utility model provides a bumper cutting device, which is achieved by the following specific technical means:

[0007] A bumper cutting device includes a support frame, a robotic arm fixed to one side of the support frame, a laser cutter fixed to the top of the robotic arm, an operating table fixed to the top of the support frame, a placement slot extending through the upper part of one side of the middle of the support frame, a servo motor fixed to the upper part of the middle of the support frame, the power output end of the servo motor extending through the support frame and fixed with a drive gear, the drive gear being located inside the placement slot, and driven racks slidably connected to the top and bottom of the inner wall of the placement slot, with pressing plates fixed to opposite ends of the two driven racks, a guide rail fixed to the top of the operating table near the robotic arm, a slider slidably connected inside the guide rail, a connecting rod hinged to one side of the slider, a limit block fixed to the top of the connecting rod, and a hydraulic telescopic rod movably mounted on one side of the slider.

[0008] Furthermore, the top of the operating table is arc-shaped, and a groove is provided through the middle of the operating table, while the bottom of both ends of the operating table is convex.

[0009] Furthermore, the driving gear meshes with the two driven racks respectively, and the two driven racks are slidably connected through the protruding end at the bottom of the operating table.

[0010] Furthermore, rubber pads are fixed to opposite sides of both extrusion plates, and the tops of the two extrusion plates are positioned on the same horizontal plane.

[0011] Furthermore, a rotating shaft is fixed to one side of the slider and one side of the connecting rod. The two ends of the hydraulic telescopic rod are respectively fixed to the two rotating shafts. A limit bolt is threaded through one side of the connecting rod, and one end of the limit bolt is in contact with the inner wall of the guide rail.

[0012] Furthermore, a cutting hole is provided through the middle of the limiting block, and the limiting block is arc-shaped on the side near the slider.

[0013] Furthermore, multiple sliders, connecting rods, limiting blocks, and hydraulic telescopic rods are provided, and the hydraulic telescopic rods are connected to an external hydraulic device through a connecting pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the bumper is placed on the top of the operating table. A servo motor drives the drive gear to rotate, which in turn drives two driven racks to rotate. The drive gear is located in the middle of the operating table, so that the two driven racks can move the same distance and move towards the middle, squeezing the two ends of the bumper located on the top of the operating table. When the bumper is offset, two squeezing plates squeeze it to the middle of the operating table, thereby achieving the effect of automatically positioning the bumper in the middle of the operating table after it is fixed.

[0016] 2. In this utility model, according to the model of the bumper and the location of the hole to be cut, the position of the limiting block is adjusted accordingly, the limiting bolt is released, the slider is moved in the guide rail to adjust the position of the limiting block, and after the adjustment is completed, the limiting bolt is tightened to limit it, thereby achieving the effect of quickly adjusting the position of the limiting block according to the location of the hole to be cut, and having a stronger adaptability. Attached Figure Description

[0017] Figure 1 This is a rear view schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view schematic diagram of the overall structure of this utility model.

[0019] Figure 3This is a schematic diagram of the structure of the operating table of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the limiting block of this utility model.

[0021] The correspondence between the component names in the diagram and the attached drawing numbers is as follows:

[0022] 1. Support frame; 2. Robotic arm; 3. Laser cutter; 4. Operating table; 5. Groove; 6. Guide rail; 7. Slider; 8. Limit bolt; 9. Connecting rod; 10. Limit block; 11. Cutting hole; 12. Hydraulic telescopic rod; 13. Placement slot; 14. Servo motor; 15. Drive gear; 16. Driven rack; 17. Extrusion plate. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; in addition, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 4 As shown:

[0027] This utility model provides a bumper cutting device, including a support frame 1, a robot arm 2 fixed on one side of the support frame 1, a laser cutter 3 fixed on the top of the robot arm 2, an operating table 4 fixed on the top of the support frame 1, a placement groove 13 extending through the upper part of one side of the middle of the support frame 1, a servo motor 14 fixed on the upper part of the middle of the support frame 1, the power output end of the servo motor 14 extending through the support frame 1 and fixed with a drive gear 15, the drive gear 15 being located inside the placement groove 13, and driven racks 16 being slidably connected to the top and bottom of the inner wall of the placement groove 13, with extrusion plates 17 fixed to opposite ends of the two driven racks 16, a guide rail 6 fixed on the top of the operating table 4 near the robot arm 2, a slider 7 slidably connected inside the guide rail 6, a connecting rod 9 hinged to one side of the slider 7, a limit block 10 fixed to the top of the connecting rod 9, and a hydraulic telescopic rod 12 movably installed on one side of the slider 7.

[0028] The top of the operating table 4 is arc-shaped, and a groove 5 is opened through the middle of the operating table 4. The bottom of both ends of the operating table 4 is convex. The groove 5 allows the cut bumper scrap to fall through without affecting the subsequent processing.

[0029] The drive gear 15 meshes with two driven racks 16, and the two driven racks 16 are slidably connected to the bottom protrusion of the operating table 4. The drive gear 15 is driven to rotate by the servo motor 14, which in turn drives the two driven racks 16 to rotate. The drive gear 15 is located in the middle of the operating table 4, so that the two driven racks 16 can move the same distance when they move, and at the same time move towards the middle to squeeze the two ends of the bumper located at the top of the operating table 4.

[0030] Among them, rubber pads are fixed on opposite sides of the two extrusion plates 17, and the tops of the two extrusion plates 17 are set on the same horizontal plane. The rubber pads increase the friction between the extrusion plates 17 and the bumper, making the bumper more compact after being limited.

[0031] The slider 7 and the connecting rod 9 are both fixed with a rotating shaft. The two ends of the hydraulic telescopic rod 12 are fixed to the two rotating shafts respectively. The connecting rod 9 is threaded through and connected to a limit bolt 8. One end of the limit bolt 8 is in contact with the inner wall of the guide rail 6. When replacing different models of bumpers, the limit bolt 8 is released, and the slider 7 is moved in the guide rail 6 to adjust the position of the limit block 10. After the adjustment is completed, the limit bolt 8 is tightened to limit it.

[0032] The limiting block 10 has a cutting hole 11 through the middle. The limiting block 10 is arc-shaped on the side near the slider 7. The arc-shaped limiting block 10 can fit better with the bumper, so that the bumper will not slide randomly when it is limited.

[0033] The device includes multiple sliders 7, connecting rods 9, limiting blocks 10, and hydraulic telescopic rods 12. The hydraulic telescopic rods 12 are connected to an external hydraulic device through a connecting pipe. By using a single hydraulic device to control multiple hydraulic telescopic rods 12 simultaneously, multiple limiting blocks 10 can move synchronously. When the hydraulic telescopic rods 12 are shortened, the connecting rod 9 rotates on the slider 7, allowing the limiting blocks 10 to move towards the top of the operating table 4.

[0034] The specific usage and function of this embodiment are as follows:

[0035] In this invention, firstly, according to the model of the bumper and the location of the holes to be cut, the position of the limiting block 10 is adjusted accordingly, and the limiting bolt 8 is released. The slider 7 is moved in the guide rail 6 to adjust the position of the limiting block 10. After adjustment, the limiting bolt 8 is tightened to limit its position. Then, the bumper is placed on top of the operating platform 4. The servo motor 14 drives the drive gear 15 to rotate, which in turn drives the two driven racks 16 to rotate. The drive gear 15 is located in the middle of the operating platform 4, allowing the two driven racks 16 to move the same distance and simultaneously move towards the center, squeezing both ends of the bumper located on top of the operating platform 4. When the bumper shifts, it is squeezed by the two squeezing plates 17. The bumper is pressed to the center of the operating table 4. The rubber pad increases the friction between the pressing plate 17 and the bumper, making the bumper more tightly closed after being limited. Then, multiple hydraulic telescopic rods 12 are controlled simultaneously by a hydraulic device, so that multiple limiting blocks 10 move synchronously. When the hydraulic telescopic rods 12 shorten, the connecting rod 9 rotates on the slider 7, so that the limiting blocks 10 move towards the top of the operating table 4. The arc-shaped limiting blocks 10 can fit better with the bumper, so that the bumper will not slide randomly during cutting after being limited. Finally, the robot arm 2 drives the laser cutter 3 to cut. The groove 5 allows the scrap bumper material after cutting to fall out without affecting subsequent processing.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A bumper cutting device, comprising a support frame (1), one side of which is fixed with a mechanical hand (2), the top end of which is fixed with a laser cutter (3), characterized in that: The support frame (1) is fixed with an operating table (4) at the top. A placement slot (13) is opened through the upper part of one side of the middle of the support frame (1). A servo motor (14) is fixed at the upper part of the middle of the support frame (1). The power output end of the servo motor (14) passes through the support frame (1) and is fixed with a drive gear (15). The drive gear (15) is located inside the placement slot (13). A driven rack (16) is slidably connected to the top and bottom of the inner wall of the placement slot (13). An extrusion plate (17) is fixed to the opposite end of the two driven racks (16). A guide rail (6) is fixed to the top of the operating table (4) near the robot (2). A slider (7) is slidably connected inside the guide rail (6). A connecting rod (9) is hinged to one side of the slider (7). A limit block (10) is fixed to the top of the connecting rod (9). A hydraulic telescopic rod (12) is movably installed on one side of the slider (7).

2. The bumper cutting apparatus of claim 1, wherein: The top of the operating table (4) is arc-shaped, and a groove (5) is provided through the middle of the operating table (4). The bottom of both ends of the operating table (4) is convex.

3. The bumper cutting device as described in claim 2, characterized in that: The driving gear (15) meshes with the two driven racks (16) respectively, and the two driven racks (16) are slidably connected to the bottom protrusion of the operating table (4).

4. The bumper cutting apparatus of claim 1, wherein: Both of the two extrusion plates (17) are fixed with rubber pads on opposite sides, and the tops of the two extrusion plates (17) are set on the same horizontal plane.

5. The bumper cutting apparatus of claim 1, wherein: The slider (7) and the connecting rod (9) are both fixed with a rotating shaft. The two ends of the hydraulic telescopic rod (12) are fixed to the two rotating shafts respectively. The connecting rod (9) is threaded through and connected with a limit bolt (8). One end of the limit bolt (8) is in contact with the inner wall of the guide rail (6).

6. The bumper cutting apparatus of claim 1, wherein: The limiting block (10) has a cutting hole (11) through the middle, and the limiting block (10) is arc-shaped on the side near the slider (7).

7. The bumper cutting apparatus of claim 1, wherein: Multiple sliders (7), connecting rods (9), limiting blocks (10) and hydraulic telescopic rods (12) are provided, and the hydraulic telescopic rods (12) are connected to external hydraulic devices through connecting pipes.