A device for cutting burrs on injection-molded front and rear bumper parts for automobiles

Abstract

This utility model relates to the field of cutting device technology, specifically to a cutting device for burr removal of injection-molded parts for front and rear bumpers of automobiles. The device includes a cutting table and a cutting assembly. The cutting assembly includes a protective cover, a screw, a transmission nut, a torsion spring, a connecting sleeve, a mounting bracket, and a scraper. The protective cover is fixedly connected to the cutting table, the screw is rotatably connected to the cutting table, and the screw is located inside the protective cover. The transmission nut is threadedly connected to the screw and is sleeved on the screw, and is slidably connected to the cutting table. The connecting sleeve is rotatably connected to the transmission nut and is sleeved on the outside of the transmission nut. The two ends of the torsion spring are fixedly connected to the transmission nut and the connecting sleeve, respectively. The mounting bracket is fixedly connected to the connecting sleeve. The scraper is located below the mounting bracket. The cutting table has a collection groove. This invention solves the problem that a blower can only clean the area covered by its airflow, and cannot clean areas not covered by the airflow, resulting in poor cleaning of burrs.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a cutting device for cutting burrs on injection molded parts for front and rear bumpers of automobiles. Background Technology

[0002] Injection molded parts refer to all injection molded products produced by injection molding machines. They are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. During the production of automotive front and rear bumper injection molded parts, burrs are present and need to be cleaned. Existing burr cutting devices for automotive front and rear bumper injection molded parts cannot quickly and uniformly collect the cut burrs, mostly requiring manual cleaning later, increasing the labor burden on workers.

[0003] The utility model patent with publication number CN217073067U provides a burr cutting device for injection-molded parts of household appliances. By activating a second hydraulic cylinder, the connecting plate is pushed vertically downward. After the connecting plate is pushed to a specified height, an electric push rod is activated, which drives the cutting blade to cut the burrs on the injection-molded parts. After cutting, the electric push rod is activated to move the cutting blade upward, and then a blower is activated. The blower blows air from the blower head through the air duct, causing the cut burrs to enter the storage box under the action of the air force, thus collecting the debris on the surface of the cutting table, ensuring the cleanliness of the cutting table surface, and reducing the labor required for manual cleaning.

[0004] The above method uses the airflow of a hair dryer to blow the burrs into the storage box. However, the hair dryer can only clean the area covered by the airflow, and cannot clean the areas not covered by the airflow, resulting in poor cleaning effect on the burrs. Utility Model Content

[0005] The purpose of this invention is to provide a device for cutting burrs on injection-molded parts for front and rear bumpers of automobiles. This device solves the problem that blowers can only clean the area covered by the wind, and cannot clean the areas not covered by the wind, resulting in poor cleaning effect on burrs.

[0006] To achieve the above objectives, this utility model provides a burr cutting device for injection-molded front and rear bumper parts of automobiles, including a cutting table and a cutting assembly. The cutting assembly includes a protective cover, a screw, a transmission nut, a torsion spring, a connecting sleeve, a mounting bracket, and a scraper. The protective cover is fixedly connected to the cutting table and is located above the cutting table. The screw is rotatably connected to the cutting table and is located inside the protective cover. The transmission nut is threadedly connected to the screw and is sleeved on the screw, and is slidably connected to the cutting table. The connecting sleeve is rotatably connected to the transmission nut and is sleeved on the outside of the transmission nut. The two ends of the torsion spring are fixedly connected to the transmission nut and the connecting sleeve, respectively, and the torsion spring is located between the transmission nut and the connecting sleeve. The mounting bracket is fixedly connected to the connecting sleeve. The scraper is located below the mounting bracket. The cutting table has a collection groove located on the side of the protective cover.

[0007] The transmission nut is provided with a limiting bracket on its outer side, and the cutting table has a limiting groove that is adapted to the limiting bracket, with the limiting bracket located inside the limiting groove.

[0008] The cutting assembly further includes an electromagnetic sheet and a magnetic block. The electromagnetic sheet is fixedly installed inside the protective cover, and the magnetic block is fixedly connected to the mounting bracket.

[0009] The cutting assembly further includes a robotic arm and a cutting blade. The robotic arm is fixedly installed inside the protective cover, and the cutting blade is disposed at the output end of the robotic arm.

[0010] The cutting assembly further includes an elastic element, which includes a fixed cylinder, a spring, and a movable cylinder. One end of the fixed cylinder is fixedly connected to the mounting bracket, and the movable cylinder is slidably connected to the fixed cylinder. Both ends of the spring are fixedly connected to the movable cylinder and the fixed cylinder, respectively. The spring is located inside the fixed cylinder. The scraper is fixedly connected to the movable cylinder and is located at the end of the movable cylinder away from the fixed cylinder.

[0011] This utility model discloses a burr-cutting device for injection-molded front and rear bumper parts of automobiles. After deburring the injection-molded parts, the screw rotates under the action of a motor, and the transmission nut moves relative to the cutting table under the action of the screw. This causes the scraper to scrape on the upper surface of the cutting table, pushing the burrs on the cutting table into the collection groove, thereby cleaning the burrs on the injection-molded parts of the front and rear bumper parts of automobiles. This solves the problem that blowers can only clean the area covered by the airflow, and cannot clean the areas not covered by the airflow, resulting in poor burr cleaning effect. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure of a device for cutting burrs on injection-molded parts for front and rear bumpers of automobiles, according to this utility model.

[0014] Figure 2 This is a structural cross-sectional view of a device for cutting burrs on injection-molded parts for front and rear bumpers of automobiles, according to this utility model.

[0015] Figure 3 This utility model relates to a device for cutting burrs on injection-molded front and rear bumper parts for automobiles. Figure 2 A magnified view of a portion of point A in the middle.

[0016] Figure 4 This is a partial cross-sectional view of the cutting table of a cutting device for cutting burrs on front and rear bumper injection molded parts of automobiles, located at the screw.

[0017] 100-Cutting table, 110-Collection trough, 120-Limiting groove, 210-Protective cover, 220-Screw, 230-Transmission nut, 231-Limiting bracket, 240-Torsion spring, 250-Connecting sleeve, 260-Mounting bracket, 270-Scraper, 280-Electromagnetic plate, 290-Magnetic block, 310-Mechanical arm, 320-Cutting disc, 330-Fixed cylinder, 340-Spring, 350-Moving cylinder. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1 to 4 , Figure 1 This is a structural schematic diagram of a device for cutting burrs on injection-molded front and rear bumper parts for automobiles, according to this utility model. Figure 2 This is a structural cross-sectional view of a device for cutting burrs on injection-molded front and rear bumper parts of an automobile, according to this utility model. Figure 3 This utility model relates to a device for cutting burrs on injection-molded front and rear bumper parts for automobiles. Figure 2 A magnified view of a portion of point A in the middle. Figure 4 This is a partial cross-sectional view of the cutting table of a cutting device for cutting burrs on front and rear bumper injection molded parts of automobiles, located at the screw.

[0020] This utility model provides a device for cutting burrs on injection-molded parts for front and rear bumpers of automobiles, including a cutting table 100 and a cutting assembly. The cutting assembly includes a protective cover 210, a screw 220, a transmission nut 230, a torsion spring 240, a connecting sleeve 250, a mounting bracket 260, a scraper 270, an electromagnetic plate 280, a magnetic block 290, a robotic arm 310, a cutting disc 320, and an elastic element. The elastic element includes a fixed cylinder 330, a spring 340, and a movable cylinder 350.

[0021] In this specific embodiment, the protective cover 210 is fixedly connected to the cutting table 100, and the protective cover 210 is located above the cutting table 100. The screw 220 is rotatably connected to the cutting table 100, and the screw 220 is located inside the protective cover 210. The transmission nut 230 is threadedly connected to the screw 220, and the transmission nut 230 is sleeved on the screw 220 and slidably connected to the cutting table 100. The connecting sleeve 250 is connected to the transmission nut 210. A rotatable connection is formed, with the connecting sleeve 250 sleeved on the outside of the transmission nut 230. The two ends of the torsion spring 240 are fixedly connected to the transmission nut 230 and the connecting sleeve 250, respectively, and the torsion spring 240 is located between the transmission nut 230 and the connecting sleeve 250. The mounting bracket 260 is fixedly connected to the connecting sleeve 250. The scraper 270 is disposed below the mounting bracket 260. The cutting table 100 has a collection groove 110 located on the side of the protective cover 210. The screw 220 can rotate under the drive of a motor. When the screw 220 rotates, the transmission nut 230 can move on the screw 220, and the connecting sleeve 250 can rotate relative to the transmission nut 230, allowing the mounting bracket 260 to rotate to a state that is in contact with the inside of the protective cover 210 and horizontal to the upper surface of the cutting table 100. When no external force is applied, the torsion spring 240 acts on the connecting sleeve 250, making the mounting bracket 260 horizontal with the cutting table 100, and causing the scraper 270 to fit against the upper surface of the cutting table 100. After deburring the injection-molded parts of the front and rear bumpers of the automobile, the screw 220 rotates under the action of the motor, and the transmission nut 230 moves relative to the cutting table 100 under the action of the screw 220, causing the scraper 270 to scrape on the upper surface of the cutting table 100 to push the burrs on the cutting table 100 into the collection groove 110, thereby cleaning the burrs on the injection-molded parts of the front and rear bumpers of the automobile. This solves the problem that the blower can only clean the area covered by the wind, and cannot clean the areas not covered by the wind, resulting in poor cleaning effect of the burrs.

[0022] Furthermore, a limiting bracket 231 is provided on the outer side of the transmission nut 230, and the cutting table 100 has a limiting groove 120 adapted to the limiting bracket 231, with the limiting bracket 231 located inside the limiting groove 120. The limiting bracket 231 can slide inside the limiting groove 120, and the limiting bracket 231 and the limiting groove 120 cooperate to realize the sliding connection between the transmission nut 230 and the cutting table 100.

[0023] Specifically, the electromagnetic plate 280 is fixedly installed inside the protective cover 210, and the magnetic block 290 is fixedly connected to the mounting bracket 260. The robotic arm 310 is fixedly installed inside the protective cover 210, and the cutting blade 320 is disposed at the output end of the robotic arm 310. When energized, the electromagnetic plate 280 is magnetic and can attract the magnetic block 290. When deburring the front and rear bumper injection molded parts of an automobile, the parts are placed inside the protective cover 210. The mounting bracket 260 is rotated so that the magnetic block 290 and the electromagnetic plate 280 come into contact and attract each other, thereby fixing the mounting bracket 260 in a state of close contact with the inner side of the protective cover 210. This ensures that the scraper 270 does not affect the cutting of the cutting blade 320. Subsequently, the robotic arm 310 can drive the cutting blade 320 to inject the front and rear bumper of the automobile. The parts are cut. After the cutting is completed, the electromagnetic plate 280 is de-energized. At this time, the mounting bracket 260 rotates under the action of the torsion spring 240, so that the scraper 270 contacts the upper end surface of the cutting table 100. The screw 220 rotates under the action of the motor, and the transmission nut 230 moves relative to the cutting table 100 under the action of the screw 220, so that the scraper 270 scrapes on the upper end surface of the cutting table 100 to push the burrs on the cutting table 100 into the collection groove 110, thereby cleaning the burrs of the injection molded parts of the front and rear bumpers of automobiles.

[0024] Additionally, one end of the fixed cylinder 330 is fixedly connected to the mounting bracket 260, the movable cylinder 350 is slidably connected to the fixed cylinder 330, both ends of the spring 340 are fixedly connected to the movable cylinder 350 and the fixed cylinder 330 respectively, and the spring 340 is located inside the fixed cylinder 330. The scraper 270 is fixedly connected to the movable cylinder 350, and the scraper 270 is located at the end of the movable cylinder 350 away from the fixed cylinder 330. The spring 340 abuts against the fixed cylinder 330, so that the scraper 270 can maintain a close fit with the upper surface of the cutting table 100, thereby improving the cleaning effect on burrs.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A device for cutting burrs on injection-molded front and rear bumper parts for automobiles, comprising a cutting table, characterized in that, It also includes cutting components; The cutting assembly includes a protective cover, a screw, a transmission nut, a torsion spring, a connecting sleeve, a mounting bracket, and a scraper. The protective cover is fixedly connected to the cutting table and is located above the cutting table. The screw is rotatably connected to the cutting table and is located inside the protective cover. The transmission nut is threadedly connected to the screw and is sleeved on the screw, and is slidably connected to the cutting table. The connecting sleeve is rotatably connected to the transmission nut and is sleeved on the outside of the transmission nut. The two ends of the torsion spring are fixedly connected to the transmission nut and the connecting sleeve, respectively, and the torsion spring is located between the transmission nut and the connecting sleeve. The mounting bracket is fixedly connected to the connecting sleeve. The scraper is located below the mounting bracket. The cutting table has a collection groove located on the side of the protective cover.

2. The burr cutting device for injection molded parts of front and rear bumpers of automobiles as described in claim 1, characterized in that, A limiting bracket is provided on the outside of the transmission nut, and the cutting table has a limiting groove adapted to the limiting bracket, with the limiting bracket located inside the limiting groove.

3. The burr cutting device for injection molded parts of front and rear bumpers of automobiles as described in claim 1, characterized in that, The cutting assembly also includes an electromagnetic plate and a magnetic block. The electromagnetic plate is fixedly installed inside the protective cover, and the magnetic block is fixedly connected to the mounting bracket.

4. The burr cutting device for injection molded automotive front and rear bumper parts as described in claim 1, characterized in that, The cutting assembly also includes a robotic arm and a cutting blade. The robotic arm is fixedly installed inside the protective cover, and the cutting blade is disposed at the output end of the robotic arm.

5. The burr cutting device for injection molded parts of front and rear bumpers of automobiles as described in claim 1, characterized in that, The cutting assembly further includes an elastic element, which includes a fixed cylinder, a spring, and a movable cylinder. One end of the fixed cylinder is fixedly connected to the mounting bracket, and the movable cylinder is slidably connected to the fixed cylinder. Both ends of the spring are fixedly connected to the movable cylinder and the fixed cylinder, respectively. The spring is located inside the fixed cylinder. The scraper is fixedly connected to the movable cylinder and is located at the end of the movable cylinder away from the fixed cylinder.

Images