An automobile hinge profile ear convex material removing device

Abstract

The application belongs to the field of metal processing equipment, and particularly relates to a car hinge profile ear convex material removing equipment, which comprises a workbench, a front feeding part, a milling part, a grinding part and a rear feeding part are sequentially arranged on the workbench from front to back, wherein the milling part is used for milling ear of the profile arc surface, and the grinding part is used for polishing the position of the profile arc surface after milling treatment; the rear feeding part and the front feeding part have the same driving frequency, which is used for ensuring that the conveying speeds of the two parts are consistent, the profile is clamped by the upper / lower profile feeding wheel in rotation, and the ear convex material on the upper profile is processed with the profile outer surface as the positioning reference after reaching the feeding station and the milling and grinding station, so that the processing effect of the whole profile is stable and consistent, is not affected by the thickness change of the profile section, and the working efficiency can be greatly improved through the whole continuous processing mode realized by mechanization.

Description

Technical Field

[0001] This invention belongs to the field of metal processing equipment, and in particular relates to a device for removing protruding material from the lugs of automotive hinge profiles. Background Technology

[0002] As an important component connecting the car door to the car body, the car hinge enables the door to open and close relative to the car body, and provides stable support for the door during the opening and closing process, ensuring that the door can be kept in the correct position.

[0003] Automotive hinge profiles are typically formed by heating and rolling metal billets at high temperatures. High-temperature rolling can produce larger and longer profiles with high production efficiency, meeting the needs of large-scale production. However, after hot rolling, the profiles always have protruding ears left from the rolling process. Currently, these are generally removed manually using power tools for milling and grinding. Because the rolled profiles are long, they are first fixed before processing. After fixing, the protruding ears on the profile surface are ground and polished manually using power tools with milling or grinding cutters. During this process, the power tools need to be moved multiple times along the length of the profile to complete the processing of the entire profile. Since the thickness of the profile cross-section varies, manual grinding can easily result in uneven profile surfaces and varying depths of machining marks. It is also labor-intensive, time-consuming, and labor-intensive.

[0004] To eliminate the labor-intensive and time-consuming problem of manual milling and improve the appearance quality of the processed profiles, this invention provides a device for removing protruding lugs from automotive hinge profiles. Summary of the Invention

[0005] In view of the above problems, the present application provides an automotive hinge profile lug protrusion removal device, which uses the outer surface of the profile as a reference, clamps the profile by rotating upper / lower profile feeding wheels, and drives the profile to move at a preset frequency. With the help of the adjusted cutter, the residual lug protrusion on the outer surface of the profile is removed stably and evenly, thereby improving efficiency and ensuring the quality of the profile appearance.

[0006] To achieve the above objectives, this application provides the following technical solution: a device for removing protruding lugs from automotive hinge profiles, comprising a worktable, on which a front feeding section, a milling section, a grinding section, and a rear feeding section are arranged sequentially from front to back. The milling section is used to mill the lugs on the arc surface of the profile, while the grinding section is used to grind the position of the arc surface of the profile after grinding. The rear feeding section and the front feeding section have the same driving frequency to ensure that the conveying speed of the profile is consistent between the two.

[0007] The aforementioned front feeding section includes a square frame mounted on a workbench. A material frame is mounted on the upper end of the square frame. Inside the material frame, a lower profile feeding wheel and an upper profile feeding wheel are rotatably mounted from bottom to top. The upper profile feeding wheel and the lower profile feeding wheel cooperate with each other to fit against the upper and lower profiles of the profile, respectively. A drive gear is fixedly mounted on the outer wall of one end of the shaft of the lower profile feeding wheel and the outer wall of one end of the shaft of the upper profile feeding wheel. The two drive gears mesh with each other in the working state. A transmission system for driving the lower profile feeding wheel to rotate is mounted inside the material frame. In this embodiment, the transmission system is driven by a sprocket and a motor.

[0008] The milling unit includes a positioning component for positioning the profile, an execution tool holder for processing the lug protrusions on the profile surface, and an execution component for adjusting the fit between the execution tool holder and the lug protrusions on the profile surface. The positioning component and the execution component are both bolted to the center of the worktable. The execution component is equipped with an execution tool holder, and the execution tool holder is mounted with a milling cutting tool.

[0009] According to an advantageous embodiment, the positioning assembly includes a lower positioning support and an upper positioning support respectively fixed to the workbench by bolts. The lower positioning support and the upper positioning support are arranged in a left-right direction. A lower profile positioning wheel that is controlled to rise and fall by an electric cylinder is installed on the lower positioning support, and an upper profile positioning wheel is provided on the upper positioning support. Both the upper profile positioning wheel and the lower profile positioning wheel cooperate with the profile and both can rotate circumferentially.

[0010] According to an advantageous embodiment, the execution component includes a guide rail fixedly mounted on the upper end of the worktable, a support seat slidably mounted on the guide rail and controllable by an electric cylinder to move laterally, a lifting plate rotatably mounted on the support seat near the positioning component via an ear plate and a pin, an angle adjustment unit is mounted on the end of the lifting plate away from the positioning component, a height adjustment unit is mounted on the lifting plate, a power head is connected to the height adjustment unit, and the power head is connected to the execution tool holder.

[0011] According to an advantageous embodiment, the angle adjustment unit includes two side plates disposed on the front and rear side walls of the support base. Both side plates are provided with arc-shaped grooves. A connecting seat with a bolt at one end is symmetrically fixed on the lower outer wall of the lifting plate. The bolt passes through the corresponding arc-shaped groove and is fixed by a nut. A clamping plate is disposed on the right side of the lifting plate. The angle adjustment unit also includes a fine-tuning screw with its lower end rotatably disposed on the support base via a bearing. An operating handle is connected to the top of the fine-tuning screw. A frame-type clamping bracket is threaded in the middle of the fine-tuning screw. The frame-type clamping bracket support base is slidably connected by a limiting post. The clamping plate is clamped in the frame-type clamping bracket.

[0012] According to an advantageous embodiment, the grinding section and the milling section are structurally identical except for the specific components mounted on the tool holder; the grinding section has a louvered grinding wheel mounted on the tool holder, which may also be a silicon carbide grinding wheel, an alumina grinding wheel, etc.

[0013] According to an advantageous embodiment, the upper surface feeding wheel is disposed inside the material frame by sliding up and down, and the two drive gears are always in a meshing state during the up and down sliding process of the upper surface feeding wheel.

[0014] According to an advantageous embodiment, the top of the material frame is provided with an electric push rod with the drive end facing downward. The lower end of the electric push rod is connected to an inverted U-shaped frame. The two shafts of the upper surface feeding wheel are respectively installed between the inner walls of the inverted U-shaped frame through bearings. Limiting grooves for guiding the inverted U-shaped frame to slide up and down are provided on both the left and right side walls of the material frame.

[0015] According to an advantageous embodiment, the rear feeding section is identical to the front feeding section except that it has an additional material dragging assembly for auxiliary feeding of the profile on the outer wall of the rear side of the material frame.

[0016] According to an advantageous embodiment, the upper positioning support is provided with a vertical strip groove, and the upper profile positioning wheel can be fixed at any position in the strip groove by bolts.

[0017] According to an advantageous embodiment, the limiting groove is provided with a plurality of guide plates for guiding the left and right inner and outer walls of the inverted U-shaped frame.

[0018] Compared with the prior art, the automotive hinge profile lug protrusion removal device provided by the present invention has the following beneficial effects: 1. The present invention can use the outer surface of the profile as a reference, clamp the profile by rotating upper / lower profile feeding wheels, and drive the profile to move at a preset frequency, and with the adjustment of the cutter, stably and evenly remove the lug protrusion remaining on the outer surface of the profile, thereby improving efficiency and ensuring the quality of the profile appearance.

[0019] 2. In this invention, the profile is clamped by the rotating upper / lower profile feeding wheels. After reaching the feeding station and milling station, the ear protrusions on the upper profile are processed with the outer profile as the positioning reference. Therefore, the processing effect of the entire profile is stable and consistent, and is not affected by the change in the thickness of the profile section. Moreover, the continuous processing of the entire profile by mechanization can greatly improve the work efficiency. Attached Figure Description

[0020] Figure 1 This is a diagram illustrating the process of machining the lug protrusions on the surface of a profile using existing positioning and conveying equipment, in accordance with the present invention.

[0021] Figure 2 This is a front-view perspective view of the present invention (after removing the internal motor structure of the power head).

[0022] Figure 3 This is a three-dimensional view of the rear side of the present invention (after removing the internal motor structure of the power head).

[0023] Figure 4 This is a three-dimensional structural diagram of the rear position of the milling part of the present invention.

[0024] Figure 5 This is a side view of the three-dimensional structure of the milling part of the present invention (after removing the internal motor structure of the power head).

[0025] Figure 6 This is a structural diagram of the square frame and the feed rollers on it according to the present invention.

[0026] Figure 7 This is a structural diagram of the profile targeted by the present invention.

[0027] Figure 8 This is a diagram showing the state in which both the lower and upper profile feeding wheels are in contact with the profile in this invention.

[0028] Figure reference numerals: 1. Worktable; 2. Front feeding section; 3. Milling section; 4. Grinding section; 5. Rear feeding section; 21. Square frame; 22. Material frame; 221. Lower profile feeding wheel; 222. Upper profile feeding wheel; 23. Drive gear; 24. Transmission system; 223. Electric push rod; 224. Inverted U-shaped frame; 225. Limiting groove; 226. Guide plate; 25. Material dragging assembly; 31. Positioning assembly; 32. Execution tool holder; 33. Execution assembly; 3 11. Lower positioning support; 312. Upper positioning support; 313. Lower profile positioning wheel; 314. Strip groove; 315. Upper profile positioning wheel; 331. Guide rail; 332. Support seat; 333. Lifting plate; 334. Angle adjustment unit; 335. Height adjustment unit; 336. Power head; 3341. Two side plates; 3342. Arc groove; 3343. Connecting seat; 3344. Clamping plate; 3345. Fine-tuning screw; 3346. Frame-type clamping bracket. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 This application will now be described in further detail.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 6 and Figure 7A device for removing protruding lugs from automotive hinge profiles includes a worktable 1. A front feeding section 2, a milling section 3, a grinding section 4, and a rear feeding section 5 are arranged sequentially from front to back on the worktable 1. The front feeding section 2 includes a lower profile feeding wheel 221, an upper profile feeding wheel 222, and a drive gear 23. The milling section 3 is used to mill the lugs on the arc surface of the profile, while the grinding section 4 is used to grind the area on the arc surface of the profile after grinding. The rear feeding section 5 and the front feeding section 2 have the same driving frequency to ensure that their conveying speeds of the profiles are consistent.

[0031] During operation, it needs to be used in conjunction with existing positioning and conveying equipment. First, set the profile conveying speed and other parameters. Press the start button. The top-feeding mechanism of the positioning and conveying equipment pushes the profile to the appropriate position. When the material rack sensor detects that the profile is in the appropriate position, the pneumatic gripper starts, clamping the profile between the lower profile feeding wheel 221 and the upper profile feeding wheel 222 of the front feeding section 2. The upper profile feeding wheel 222 is controlled to press down and clamp the profile with the lower profile feeding wheel 221 (see...). Figure 8 The upper profile feeding wheel 222 and the lower profile feeding wheel 221 are driven by meshing drive gears 23 with the same module and the same number of teeth, so they rotate at the same speed and can stably convey the profile backward. The profile passes through the milling part 3 and the grinding part 4 in sequence to complete the ear protrusion processing process, and finally passes through the rear feeding part 5 to be sent out.

[0032] See Figure 1 and Figure 6 The front feeding section 2 further includes a square frame 21 set on the workbench 1. A material frame 22 is set at the upper end of the square frame 21. Inside the material frame 22, a lower profile feeding wheel 221 and an upper profile feeding wheel 222 are rotatably arranged from bottom to top. The upper profile feeding wheel 222 and the lower profile feeding wheel 221 cooperate with each other to fit against the upper and lower profiles of the profile, thereby ensuring that the profile is not affected by the change in the thickness of the profile section during processing and that the profile can remain stable during processing in the conveying process. A drive gear 23 is fixedly set on the outer wall of the shaft head at one end of the lower profile feeding wheel 221 and the outer wall of the shaft head at one end of the upper profile feeding wheel 222. The two drive gears 23 mesh with each other in the working state. The material frame 22 is equipped with a transmission system 24 that drives the lower profile feeding wheel 221 to rotate. In this embodiment, the transmission system 24 is driven by a sprocket and a motor. Of course, it can also be driven by a pulley and a motor, etc.

[0033] See Figure 6 and Figure 8The upper profile feeding wheel 222 is set inside the material frame 22 by sliding up and down, and the two drive gears 23 are always in mesh during the up and down sliding process of the upper profile feeding wheel 222 to ensure that the upper profile feeding wheel 222 and the lower profile feeding wheel 221 move at the same frequency, ensuring stable conveying of the profile, thereby ensuring the effect of milling part 3 and grinding part 4 on the surface treatment of the profile.

[0034] Continue reading Figure 6 The top of the material frame 22 is provided with an electric push rod 223 with the drive end facing downward. The lower end of the electric push rod 223 is connected to an inverted U-shaped frame 224. The two shafts of the upper surface feeding wheel 222 are respectively installed between the inner walls of the inverted U-shaped frame 224 through bearings. Limiting grooves 225 for guiding the inverted U-shaped frame 224 to slide up and down are provided on the left and right side walls of the material frame 22. Several guide plates 226 are provided at the limiting grooves 225 for guiding the left and right inner and outer walls of the inverted U-shaped frame 224.

[0035] Specifically, the electric push rod 223 drives the inverted U-shaped frame 224 to move up and down, which in turn drives the upper surface feeding wheel 222 to move up and down to adjust its position. It should be noted that the travel of the electric push rod 223 is controlled within the range of one tooth root height of the drive gear 23, so as to ensure that the two drive gears 23 are always in a meshing state during the up and down movement of the upper surface feeding wheel 222.

[0036] See Figure 2 The rear feeding section 5 is identical to the front feeding section 2 except that it has an additional material dragging assembly 25 for auxiliary feeding of the profile. The purpose of setting the material dragging assembly 25 on the rear feeding section 5 is to further support the profile after the lugs on the profile have been fully processed during the conveying process, reduce the cantilever support force, and thus prevent deformation or damage to the profile at the end of the conveying process. The material dragging assembly 25 used in this embodiment mainly consists of a material seat fixedly set on the material frame 22 and a top rod that is screwed and rotated on the material seat to achieve height adjustment. The top of the top rod is equipped with a ball bearing that rolls against the lower surface of the profile to ensure smooth profile conveying.

[0037] See Figure 3 The milling unit 3 includes a positioning component 31 for positioning the profile, an execution tool holder 32 for processing the lug protrusions on the surface of the profile, and an execution component 33 for adjusting the fit between the execution tool holder 32 and the lug protrusions on the surface of the profile. The positioning component 31 and the execution component 33 are both bolted to the middle of the worktable 1. The execution tool holder 32 is provided on the execution component 33, and a milling tool is installed on the execution tool holder 32. In this embodiment, a face milling cutter is used.

[0038] The positioning component 31 is set to further ensure circumferential support at the profile processing position, fully eliminate the lateral force of the tool on the profile, thereby preventing the profile from jumping up and down and ensuring stability; the execution component 33 controls the execution tool holder 32 to drive the face milling cutter connected to it to complete the milling and removal of the ear protrusion on the outer wall of the profile.

[0039] See Figure 2 The grinding section 4 and the milling section 3 are structurally identical except for the specific components mounted on the tool holder 32. The tool holder 32 on the grinding section 4 is equipped with a common abrasive grinding wheel. In this embodiment, a louvered grinding wheel is used, but silicon carbide grinding wheels, alumina grinding wheels, etc. can also be selected. The specific operation process of the grinding section 4 is the same as that of the milling section 3.

[0040] See Figure 5 The positioning component 31 includes a lower positioning support 311 and an upper positioning support 312, which are respectively fixed to the worktable 1 by bolts. The lower positioning support 311 and the upper positioning support 312 are arranged in a left-right direction. The lower positioning support 311 is equipped with a lower profile positioning wheel 313 that is controlled to rise and fall by an electric cylinder. The upper positioning support 312 has a vertical strip groove 314 and an upper profile positioning wheel 315. The upper profile positioning wheel 315 can be fixed at any position in the strip groove 314 by bolts. Both the upper profile positioning wheel 315 and the lower profile positioning wheel 313 cooperate with the profile and can rotate circumferentially.

[0041] See Figure 4 After the initial position is adjusted, the upper profile positioning wheel 315 in the positioning component 31 is fixed by bolts and its position remains unchanged. During the processing, the upper profile positioning wheel 315 serves as the reference for the profile, which can ensure the stability of the profile.

[0042] See Figure 3 and Figure 5 The execution component 33 includes a guide rail 331 fixedly mounted on the upper end of the worktable 1. A support base 332, which can be moved laterally by an electric cylinder, is slidably mounted on the guide rail 331. A lifting plate 333 is rotatably mounted on the support base 332 near the positioning component 31 via an ear plate and a pin. An angle adjustment unit 334 is mounted on the end of the lifting plate 333 away from the positioning component 31. A height adjustment unit 335 is mounted on the lifting plate 333. A power head 336 is connected to the height adjustment unit 335. The power head 336 is connected to the execution tool holder 32.

[0043] The electric cylinder can control the movement of the support 332, thereby indirectly adjusting the face milling cutter connected to the end of the tool holder 32 to fit with the lug protrusion at the front end of the profile to complete the grinding. In specific adjustments, it is also necessary to cooperate with the operating angle adjustment unit 334 and the height adjustment unit 335 to ensure that the lug protrusion can be completely removed during the tool grinding operation.

[0044] See Figure 5 In this embodiment, the angle adjustment unit 334 includes two side plates 3341 disposed on the front and rear side walls of the support base 332. Both side plates 3341 are provided with arc-shaped grooves 3342. The lower outer wall of the lifting plate 333 is symmetrically fixed with a connecting seat 3343 with a bolt at one end. The bolt passes through the corresponding arc-shaped groove 3342 and is fixed by a nut. A clamping plate 3344 is disposed on the right side of the lifting plate 333. The angle adjustment unit 334 also includes a fine-tuning screw 3345 whose lower end is rotatably disposed on the support base 332 via a bearing. The top end of the fine-tuning screw 3345 is connected to an operating handle. The middle part of the fine-tuning screw 3345 is threaded with a frame-type clamping bracket 3346. The frame-type clamping bracket 3346 is slidably connected to the support base 332 via a limiting post. The clamping plate 3344 is clamped in the frame-type clamping bracket 3346.

[0045] In specific operation, the angle adjustment unit 334 can be operated by hand-cranking the operating handle, which, in conjunction with the limiting and guiding action of the limiting post, allows the frame-type snap-fit ​​bracket 3346 to move up and down. During the up and down movement of the frame-type snap-fit ​​bracket 3346, the snap-fit ​​plate 3344 moves accordingly, thereby causing the lifting plate 333 to undergo a slight angle adjustment (after the adjustment is completed, the nut on the bolt side of the connecting seat 3343 needs to be tightened to fix the angle), which further causes the execution tool holder 32 to tilt, so that the face milling cutter / louver grinding wheel can better fit the outer surface of the profile, thereby making the outer surface of the profile smooth.

[0046] It should be noted that the card plate 3344 is not in a locked state on the frame-type card holder 3346. When the card plate 3344 moves up and down with the frame-type card holder 3346, the card plate 3344 can move relative to the frame-type card holder 3346 to adapt to the positional changes of the card plate 3344 in the horizontal and vertical directions due to the change of the angle of the card plate 3344.

[0047] See Figure 5 In this embodiment, the power head 336 uses a motor and sprocket drive to drive the execution tool holder 32. The height adjustment unit 335 in this embodiment uses a commonly used spiral fine-tuning structure for fine-tuning, which will not be described in detail in this embodiment.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for removing protruding lugs from automotive hinge profiles, comprising a worktable, wherein a front feeding section, a milling section, a grinding section, and a rear feeding section are arranged sequentially from front to back on the worktable surface, characterized in that, The milling section is used to mill the ears on the arc surface of the profile, while the grinding section is used to grind the position after the arc surface of the profile has been ground; the rear feeding section and the front feeding section have the same driving frequency. The aforementioned front feeding section includes a square frame mounted on a workbench. A material frame is mounted on the upper end of the square frame. Inside the material frame, a lower molded surface feeding wheel and an upper molded surface feeding wheel are rotatably mounted from bottom to top. A drive gear is fixedly mounted on the outer wall of one end of the shaft of the lower molded surface feeding wheel and the outer wall of one end of the shaft of the upper molded surface feeding wheel. The two drive gears mesh with each other in the working state. A transmission system for driving the lower molded surface feeding wheel to rotate is mounted inside the material frame. The rear feeding section is identical to the front feeding section except that it has an additional material dragging assembly on the outer wall of the rear side of the material frame for auxiliary feeding of the profile. The material carrier assembly mainly consists of a material seat fixedly mounted on the material frame and a top rod that is screwed onto the material seat for height adjustment. The top of the top rod is fitted with a ball bearing that rolls against the lower surface of the profile. The upper and lower profile feeding wheels cooperate with each other to fit against the upper and lower profiles of the profile, respectively. The upper profile feeding wheel is set inside the material frame by sliding up and down, and the two drive gears are always in a meshing state during the up and down sliding process. The meshing transmission of the two drive gears drives the upper and lower profile feeding wheels that clamp the profile to rotate, so as to stably convey the profile backward. The milling unit includes a positioning component for positioning the profile, an execution tool holder for processing the lug protrusions on the profile surface, and an execution component for adjusting the fit between the execution tool holder and the lug protrusions on the profile surface. The positioning component and the execution component are both bolted to the center of the worktable. The execution component is equipped with an execution tool holder, and the execution tool holder is equipped with a milling cutting tool. The positioning component includes a lower positioning support and an upper positioning support, which are respectively fixed to the worktable by bolts. The lower positioning support and the upper positioning support are arranged in a left-right direction. The lower positioning support is equipped with a lower profile positioning wheel that is controlled to lift by an electric cylinder. The execution component includes a guide rail fixedly installed on the upper part of the worktable. A support seat that can move laterally controlled by an electric cylinder is slidably installed on the guide rail. A lifting plate is rotatably installed on the support seat near the positioning component through an ear plate and a pin shaft. An angle adjustment unit is installed on the end of the lifting plate away from the positioning component. The angle adjustment unit includes two side plates disposed on the front and rear side walls of the support base. Both side plates are provided with arc-shaped grooves. A connecting seat with a bolt at one end is symmetrically fixed on the lower outer wall of the lifting plate. The bolt passes through the corresponding arc-shaped groove and is fixed by a nut. A clamping plate is disposed on the right side of the lifting plate. The angle adjustment unit also includes a fine-tuning screw with its lower end rotatably mounted on the support base via a bearing. An operating handle is connected to the top of the fine-tuning screw. A frame-shaped clamping bracket is threaded in the middle of the fine-tuning screw. The frame-shaped clamping bracket is slidably connected to the support base via a limiting post. The clamping plate is clamped in the frame-shaped clamping bracket.

2. The automotive hinge profile lug protrusion removal device according to claim 1, characterized in that, The upper positioning support is provided with an upper profile positioning wheel. Both the upper profile positioning wheel and the lower profile positioning wheel cooperate with the profile and can rotate circumferentially.

3. The device for removing protruding lugs from automotive hinge profiles according to claim 1, characterized in that, The lifting plate is equipped with a height adjustment unit, and a power head is connected to the height adjustment unit. The power head is connected to the execution tool holder.

4. The automotive hinge profile lug protrusion removal device according to claim 1, characterized in that, The grinding section and the milling section are structurally identical except for the specific components mounted on the tool holder; the grinding section has a common abrasive grinding wheel mounted on the tool holder.

5. The device for removing protruding lugs from automotive hinge profiles according to claim 1, characterized in that, The top of the material frame is provided with an electric push rod with the drive end facing downward. The lower end of the electric push rod is connected to an inverted U-shaped frame. The two shafts of the upper surface feeding wheel are respectively installed between the inner walls of the inverted U-shaped frame through bearings. Limiting grooves for guiding the inverted U-shaped frame to slide up and down are provided on the left and right side walls of the material frame.

6. The automotive hinge profile lug protrusion removal device according to claim 2, characterized in that, The upper positioning support has a vertical strip groove, and the upper profile positioning wheel can be fixed at any position in the strip groove by bolts.

7. The device for removing protruding lugs from automotive hinge profiles according to claim 5, characterized in that, The limiting groove is equipped with several guide plates for guiding the left and right inner and outer walls of the inverted U-shaped frame.

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