A punching device for processing a door check arm

Abstract

The utility model belongs to the technical field of door limiting arm processing, and disclose a kind of punching device for door limiting arm processing, including drilling machine, the side of drilling machine is provided with base, fixedly connected with support plate on the base, rotatably connected with carousel on the support plate, the bottom surface of the support plate is provided with the drive mechanism for driving carousel rotation, fixedly connected with a plurality of mounting seat on the carousel, the mould seat compatible with limiting arm is slidably inserted in the mounting seat.The utility model can rotate limiting arm after punching to between two polishing blocks by carousel, the rotation of first motor drives the rotation of rotating shaft, so that two first gears respectively drive the rotation of two second gears, finally make two polishing blocks synchronous rotation, then use electric push rod to make two polishing blocks respectively deburring two ends of drilling, arm drilling is completed polishing, use electric push rod to make limiting arm between two polishing blocks, ensure that limiting arm moves between two polishing blocks.

Description

Technical Field

[0001] This utility model belongs to the field of door limit arm processing technology, specifically a drilling device for processing door limit arms. Background Technology

[0002] The door limit arm is a core component in the automotive door system used to control the opening angle and achieve the stopping function. Its machining accuracy directly affects the smoothness and safety of door operation. In the manufacturing process of the limit arm, the drilling process is one of the key steps, requiring the machining of holes at one end of the arm body for installation or connection.

[0003] However, traditional door limit arms often produce burrs at the hole edges during hole machining due to the cutting characteristics of the drill bit and the ductility of the material, especially on the exit side. Therefore, after drilling, the limit arm typically requires disassembly, transfer, and secondary clamping, increasing overall processing time and reducing overall production line efficiency. Furthermore, secondary clamping can lead to hole positioning deviations, resulting in inconsistent burr removal. To address these issues, we provide a drilling device for machining door limit arms. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a drilling device for processing door limit arms.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling device for processing a door limiting arm, comprising a drilling machine, a base provided on one side of the drilling machine, a support plate fixedly connected to the base, a turntable rotatably connected to the support plate, a drive mechanism for rotating the turntable provided on the bottom surface of the support plate, a plurality of mounting seats fixedly connected to the turntable, a mold seat adapted to the limiting arm being slidably inserted into the mounting seats, a pressing mechanism for preventing the limiting arm from moving provided in the middle of the turntable, a support frame provided on one side of the turntable, an electric push rod installed at the top of the support frame, a U-shaped plate fixedly connected to the telescopic end of the electric push rod, and a grinding mechanism for removing burrs from the holes of the limiting arm provided on the U-shaped plate.

[0006] Preferably, the driving mechanism includes a sleeve, which is fixedly connected to the middle of the support plate and passes through the lower part of the support plate. The sleeve is rotatably connected to the middle of the support plate. A second motor is installed on the bottom surface of the support plate. A third gear is fixedly connected to the output end of the second motor. A fourth gear is sleeved on the surface of the sleeve and meshes with the third gear.

[0007] Preferably, the pressing mechanism includes a support column, the support column passes through the turntable and the support plate and is fixedly connected to the middle of the base, and a sleeve is sleeved on the outside of the support column. A positioning plate is fixedly connected between the two top ends of the support column, and the positioning plate is located between the drilling machine and the electric push rod.

[0008] Preferably, a support cylinder is fixedly connected to the side of the support plate near the drilling machine, and a debris hopper is fixedly connected to the bottom surface of the support plate, with the debris hopper located directly below the support cylinder.

[0009] Preferably, the polishing mechanism includes a first motor mounted on a U-shaped plate. A rotating shaft is rotatably connected to the inner wall of the U-shaped plate, and the output end of the first motor is connected to one end of the rotating shaft. Polishing blocks are rotatably connected to the inner top wall and inner bottom wall of the U-shaped plate. A second gear is sleeved on the surface of each of the two polishing blocks. A first gear is fixedly connected to both ends of the rotating shaft, and the first gear meshes with the second gear.

[0010] Preferably, the support plate has a sliding groove, and the bottom surface of the turntable is equipped with a plurality of balls, which are slidably disposed in the sliding groove.

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

[0012] This invention, through the coordinated arrangement of a drilling machine, turntable, support plate, base, mounting seat, mold seat, support frame, electric push rod, U-shaped plate, drive mechanism, pressing mechanism, and grinding mechanism, can position the limiting arm to be drilled on the mold seat for positioning. Then, the turntable rotates under the operation of a second motor, causing the limiting arm with the hole to be drilled to rotate and move to the drilling machine for drilling. After the limiting arm has been drilled, the second motor rotates the drilled limiting arm between two grinding blocks via the turntable to begin grinding and deburring. First, the first motor... The operation drives the rotating shaft to rotate, causing the two first gears to drive the two second gears to rotate, ultimately making the two grinding blocks rotate synchronously. Then, the electric push rod is used to deburr both ends of the drilled hole with the two grinding blocks. After the two ends of the hole drilled by the limiting arm are ground, the electric push rod is used to position the limiting arm between the two grinding blocks, thus ensuring that the limiting arm moves between the two grinding blocks. Therefore, there is no need to remove the limiting arm and transfer it to another process for processing. This not only improves the drilling efficiency of the limiting arm, but also does not affect the positioning deviation of the limiting arm, ensuring the consistency of the deburring effect of the limiting arm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0015] Figure 3 This is a schematic diagram of the deburring mechanism of this utility model;

[0016] Figure 4 This is a top view of the support plate of this utility model.

[0017] Figure 5 This is a bottom view of the turntable structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the assembly structure of the mounting base and mold base of this utility model;

[0019] Figure 7 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Drilling machine; 2. Turntable; 3. Support plate; 4. Base; 5. Support frame; 6. Electric push rod; 7. Support column; 8. Positioning plate; 9. Mounting seat; 10. Mold seat; 11. Rotating shaft; 12. First motor; 13. U-shaped plate; 14. Debris hopper; 15. Support cylinder; 16. Slide groove; 17. First gear; 18. Second gear; 19. Grinding block; 20. Ball bearing; 21. Sleeve; 22. Fourth gear; 23. Second motor; 24. Third gear. Detailed Implementation

[0021] 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.

[0022] like Figure 1-7As shown, this embodiment proposes a drilling device for processing a door limiting arm, including a drilling machine 1. A base 4 is provided on one side of the drilling machine 1, and a support plate 3 is fixedly connected to the base 4. A turntable 2 is rotatably connected to the support plate 3, allowing the turntable 2 to rotate on the support plate 3. A drive mechanism is provided on the bottom surface of the support plate 3 to drive the turntable 2 to rotate automatically on the support plate 3, thereby ensuring that the limiting arm is rotated to the drilling and grinding positions. Several mounting seats 9 are fixedly connected to the turntable 2, and the number of mounting seats 9 can be set to four, each... The included angle between the mounting bases 9 is 90°. Personnel load and unload the limiting arm from in front of the turntable 2. A mold base 10, adapted to the limiting arm, is slidably inserted into the mounting base 9, allowing for easy disassembly and replacement of the mold base 10 within the mounting base 9. This enables its use with limiting arms of different sizes. To prevent the mold base 10 from sliding freely within the mounting base 9, a positioning pin can be inserted into one end of the mounting base 9 to position the mold base 10 and prevent it from falling out. Furthermore, the placement groove on the mold base 10 matches the limiting groove on the surface of the limiting arm. The mold base 10 is... Existing mature technologies will not be detailed here. A pressing mechanism is installed in the middle of the turntable 2 to prevent the limit arm from moving. This pressing mechanism ensures the stability of the limit arm during subsequent drilling and grinding, preventing displacement and wobbling. A support frame 5 is installed on one side of the turntable 2, and an electric push rod 6 is mounted on the top of the support frame 5. A U-shaped plate 13 is fixed to the telescopic end of the electric push rod 6. A grinding mechanism for removing burrs from the holes of the limit arm is installed on the U-shaped plate 13. With the above structure, after the limit arm is drilled by the drilling machine 1, it is then driven by the drive mechanism... The turntable 2 is rotated 90° counterclockwise, moving the drilled limiting arm to the grinding mechanism. The limiting arm to be drilled later will be at the drilling machine 1. This allows the drilling machine 1 and the grinding mechanism to process simultaneously without disassembling and transferring them to another process. This not only improves the drilling efficiency of the limiting arm but also does not affect the positioning deviation of the limiting arm, ensuring the consistency of the deburring effect of the limiting arm. The machinery, parts and equipment in this device all adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0023] like Figure 2 and Figure 5As shown, the drive mechanism includes a sleeve 21, which is fixedly connected to the middle of the support plate 3 and extends through the lower part of the support plate 3. The sleeve 21 is rotatably connected to the middle of the support plate 3. A second motor 23 is mounted on the bottom surface of the support plate 3, and a third gear 24 is fixedly connected to the output end of the second motor 23. A fourth gear 22 is sleeved on the surface of the sleeve 21, and the fourth gear 22 meshes with the third gear 24. With the above structure, the rotation of the turntable 2 on the support plate 3 can be achieved. As a result, the operation of the second motor 23 causes the third gear 24 to drive the fourth gear 22, which in turn causes the sleeve 21 to rotate the turntable 2. This moves the limiting arm on the turntable 2 to the drilling machine 1 for drilling. After the limiting arm has completed the drilling, the second motor 23 is used to move the drilled limiting arm to the grinding mechanism for further processing. The limiting arms to be drilled later will also be at the drilling machine 1, thus improving the drilling efficiency of the limiting arm.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the pressing mechanism includes a support column 7, which passes through the turntable 2 and the support plate 3 and is fixedly connected to the middle of the base 4. The sleeve 21 is fitted on the outside of the support column 7. A positioning plate 8 is fixed between the two top ends of the support column 7 and is located between the drilling machine 1 and the electric push rod 6. With the above structure, as the turntable 2 rotates, the limiting arm on the mold base 10 will be positioned by the positioning plate 8, thereby ensuring the stability of the limiting arm when the drilling machine 1 drills it and it will not shake. After the limiting arm finishes drilling, it will continue to slide on the bottom surface of the positioning plate 8 until it reaches the grinding mechanism. Then, the grinding mechanism is used to deburr the drilled area. Finally, the limiting arm is removed from the positioning plate 8 by the rotation of the turntable 2, and the operator can directly remove it, thus ensuring the stability of the limiting arm during drilling and grinding.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, a support cylinder 15 is fixedly connected to the side of the support plate 3 near the drilling machine 1, and a chip hopper 14 is fixedly connected to the bottom surface of the support plate 3. The chip hopper 14 is located directly below the support cylinder 15. The support cylinder 15 ensures the stability of the limiting arm during drilling. The chip hopper 14 facilitates the collection of chips generated at the bottom during drilling. Specifically, the chip collection cylinder can be placed below the opening of the chip hopper 14.

[0026] like Figures 1 to 3As shown, the grinding mechanism includes a first motor 12, which is mounted on a U-shaped plate 13. A rotating shaft 11 is rotatably connected to the inner wall of the U-shaped plate 13, and the output end of the first motor 12 is connected to one end of the rotating shaft 11. Grinding blocks 19 are rotatably connected to the inner top and bottom walls of the U-shaped plate 13. A second gear 18 is fitted onto the surface of each grinding block 19. A first gear 17 is fixed to both ends of the rotating shaft 11, and the first gear 17 meshes with the second gear 18. With the above structure, after one end of the limiting arm completes drilling, it will move between the two grinding blocks 19 as the turntable 2 rotates, and deburring of the drilled edge can begin. First, the operation of the first motor 12 drives the rotating shaft 11 to rotate, causing the two first gears 17 to drive the two second gears 18 to rotate, ultimately causing the two grinding blocks 19 to rotate synchronously. Then, the operation of the electric push rod 6 controls the U-shaped plate 13 to descend, allowing the upper grinding block 19 to deburr the upper part of the limit arm drill hole. After the deburring is completed, the electric push rod 6 drives the U-shaped plate 13 to rise, allowing the lower grinding block 19 to deburr the lower part of the limit arm drill hole. After the two ends of the limit arm drill hole are finished being ground, the electric push rod 6 moves the lower grinding block 19 away from the limit arm, thereby ensuring that the limit arm can move between the two grinding blocks 19.

[0027] like Figure 4 and Figure 5 As shown, a groove 16 is provided on the support plate 3, and several balls 20 are installed on the bottom surface of the turntable 2. The balls 20 are slidably disposed in the groove 16. With the above structure, the stability of the turntable 2 when rotating on the support plate 3 is ensured, and the contact friction between the turntable 2 and the support plate 3 is reduced.

[0028] The working principle and usage process of this utility model are as follows: First, the limiting arm to be drilled is placed on the mold base 10 for positioning. Then, the operation of the second motor 23 causes the third gear 24 to move the fourth gear 22, causing the sleeve 21 to drive the turntable 2 to rotate, thereby rotating and moving the limiting arm on the turntable 2 to the drilling machine 1. At this time, the operator can continuously place the limiting arm to be drilled on an empty mold base 10 for drilling. After the limiting arm has completed the drilling process by the drilling machine 1, the second motor 23 rotates the drilled limiting arm through the turntable 2 to between the two grinding blocks 19. At this time, the limiting arm to be drilled will also be at the drilling machine 1, so it can be processed simultaneously, thereby improving the drilling efficiency of the limiting arm. When the turntable 2 rotates, the limiting arm is positioned by the bottom surface of the positioning plate 8, thereby ensuring stability during drilling and grinding. During the deburring process, the first motor 12 drives the rotating shaft 11 to rotate, causing the two first gears 17 to drive the two second gears 18 to rotate, ultimately making the two grinding blocks 19 rotate synchronously. Then, the electric push rod 6 controls the U-shaped plate 13 to descend, allowing the upper grinding block 19 to deburr the area above the hole in the limiting arm. After this process, the electric push rod 6 drives the U-shaped plate 13 to rise, allowing the lower grinding block 19 to deburr the area below the hole in the limiting arm. Once both ends of the hole in the limiting arm are finished being ground, the electric push rod 6 moves the lower grinding block 19 away from the limiting arm, ensuring that the limiting arm moves between the two grinding blocks 19. Therefore, it is not necessary to remove the limiting arm and transfer it to another process, which not only improves the drilling efficiency of the limiting arm but also does not affect the positioning deviation of the limiting arm, ensuring the consistency of the deburring effect.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device for processing a door limiting arm, comprising a drilling machine (1), characterized in that: A base (4) is provided on one side of the drilling machine (1). A support plate (3) is fixedly connected to the base (4). A turntable (2) is rotatably connected to the support plate (3). A drive mechanism for rotating the turntable (2) is provided on the bottom surface of the support plate (3). Several mounting seats (9) are fixedly connected to the turntable (2). A mold seat (10) adapted to the limiting arm is slidably inserted into the mounting seat (9). A pressing mechanism for preventing the limiting arm from moving is provided in the middle of the turntable (2). A support frame (5) is provided on one side of the turntable (2). An electric push rod (6) is installed at the top of the support frame (5). A U-shaped plate (13) is fixedly connected to the telescopic end of the electric push rod (6). A grinding mechanism for removing burrs from the holes of the limiting arm is provided on the U-shaped plate (13).

2. The drilling device for processing a door limiting arm according to claim 1, characterized in that: The driving mechanism includes a sleeve (21), which is fixedly connected to the middle of the support plate (3) and passes through the bottom of the support plate (3). The sleeve (21) is rotatably connected to the middle of the support plate (3). A second motor (23) is installed on the bottom surface of the support plate (3). A third gear (24) is fixedly connected to the output end of the second motor (23). A fourth gear (22) is sleeved on the surface of the sleeve (21), and the fourth gear (22) meshes with the third gear (24).

3. The drilling device for processing a door limiting arm according to claim 2, characterized in that: The pressing mechanism includes a support column (7), the support column (7) passes through the turntable (2) and the support plate (3) and is fixedly connected to the middle of the base (4), and the sleeve (21) is sleeved on the outside of the support column (7). A positioning plate (8) is fixedly connected between the two top ends of the support column (7), and the positioning plate (8) is located between the drilling machine (1) and the electric push rod (6).

4. The drilling device for processing a door limiting arm according to claim 1, characterized in that: The support plate (3) is fixedly connected to the side of the drilling machine (1) with a support cylinder (15), and the bottom surface of the support plate (3) is fixedly connected to a chip hopper (14), and the chip hopper (14) is located directly below the support cylinder (15).

5. The drilling device for processing a door limiting arm according to claim 1, characterized in that: The polishing mechanism includes a first motor (12), which is mounted on a U-shaped plate (13). A rotating shaft (11) is rotatably connected to the inner wall of the U-shaped plate (13), and the output end of the first motor (12) is connected to one end of the rotating shaft (11). Polishing blocks (19) are rotatably connected to the inner top wall and inner bottom wall of the U-shaped plate (13). A second gear (18) is sleeved on the surface of each of the two polishing blocks (19). A first gear (17) is fixedly connected to both ends of the rotating shaft (11), and the first gear (17) meshes with the second gear (18).

6. The drilling device for processing a door limiting arm according to claim 1, characterized in that: The support plate (3) has a groove (16) and the bottom surface of the turntable (2) is equipped with a number of balls (20), and the balls (20) are slidably disposed in the groove (16).

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