CN119910444B

CN119910444B - Equipment for removing lug protruding material of automobile hinge profile

Info

Publication number: CN119910444B
Application number: CN202510413059.1A
Authority: CN
Inventors: 安浩成; 丁海春; 陈涛; 李�雨; 曾警瑶
Original assignee: Jilin Hanteng Auto Parts Group Co ltd
Current assignee: Jilin Hanteng Auto Parts Group Co ltd
Priority date: 2025-04-03
Filing date: 2025-04-03
Publication date: 2025-11-11
Anticipated expiration: 2045-04-03
Also published as: CN119910444A

Abstract

The invention belongs to the field of metal processing equipment, and particularly relates to equipment for removing lug materials of an automobile hinge profile, which comprises a workbench, wherein a front feeding part, a milling part, a grinding part and a rear feeding part are sequentially arranged on the surface of the workbench from front to back, the milling part is used for milling lugs of a profile arc surface, the grinding part is used for polishing positions of the profile arc surface after the grinding treatment, the driving frequencies of the rear feeding part and the front feeding part are the same and are used for ensuring the consistent conveying speed of the profile.

Description

Equipment for removing lug protruding material of automobile hinge profile

Technical Field

The invention belongs to the field of metal processing equipment, and particularly relates to equipment for removing lugs and protruding materials of automobile hinge profiles.

Background

The automobile hinge is used as an important part for connecting an automobile door and an automobile body, can enable the door to open and close relative to the automobile body, provides stable support for the door in the opening and closing processes of the door, and ensures that the door can be kept at a correct position.

The metal blank is typically formed into an automotive hinge profile of a particular shape and size by hot-rolling the blank. The high-temperature rolling can produce the profile with larger size and longer length, the production efficiency is high, the large-scale production requirement can be met, but the profile is hot rolled and then has protruding lugs remained in the rolling process, the milling and polishing treatment is generally carried out by using an electric tool at present, because the rolled profile is longer in length, the profile is fixed firstly before the treatment, after the fixing, the electric tool is manually used for milling a cutter or polishing a cutter to grind and polish lug protruding materials on the surface of the profile, and the electric tool needs to move for a plurality of times along the length direction of the profile to finish the whole profile, because the thickness of the section of the profile is changed, the profile surface is not uniform easily caused by manual cutting and polishing, the depth of a processing trace is different, the labor intensity is high, and the labor is wasted and the time is wasted.

The invention provides equipment for removing lugs and protruding materials of an automobile hinge profile, which aims to solve the problem of labor and effort in manual milling and grinding and improve the appearance quality of the profile after the profile is processed.

Disclosure of Invention

In view of the above problems, the device for removing the ear protruding material of the automobile hinge profile provided by the embodiment of the application uses the outer surface of the profile as a reference, clamps the profile through the rotating upper/lower profile feeding wheels, drives the profile to move according to preset frequency, and stably and uniformly removes the ear protruding material remained on the outer profile of the profile by matching with the adjusted cutter, thereby realizing the effects of improving the efficiency and ensuring the appearance quality of the profile.

In order to achieve the purpose, the automobile hinge section lug protruding material removing device comprises a workbench, wherein a front feeding part, a milling part, a grinding part and a rear feeding part are sequentially arranged on the surface of the workbench from front to back, the milling part is used for milling lugs of a section bar arc surface, the grinding part is used for polishing positions of the section bar arc surface after polishing, and driving frequencies of the rear feeding part and the front feeding part are the same and are used for ensuring that conveying speeds of the rear feeding part and the front feeding part on the section bar are consistent.

The front feeding part comprises a square frame arranged on the workbench, a material frame is arranged at the upper end of the square frame, a lower profile feeding wheel and an upper profile feeding wheel are respectively arranged in the material frame in a rotating mode from bottom to top, the upper profile feeding wheel and the lower profile feeding wheel are mutually matched and respectively attached to the upper profile and the lower profile of the profile, a driving gear is fixedly arranged on the outer wall of a shaft head at one end of the lower profile feeding wheel and the outer wall of a shaft head at one end of the upper profile feeding wheel, the two driving gears are meshed with each other in a working state, a transmission system for driving the lower profile feeding wheel to rotate is arranged in the material frame, and the transmission system adopted in the embodiment is driven by a motor through a sprocket.

The milling part comprises a positioning component for positioning the section bar, an execution tool holder for processing the lug protruding material on the surface of the section bar, and an execution component for adjusting the execution tool holder to be attached to the lug protruding material on the surface of the section bar, wherein the positioning component and the execution component are arranged in the middle of the workbench through bolts, the execution component is provided with the execution tool holder, and the execution tool holder is provided with a milling cutter.

According to an advantageous embodiment, the positioning assembly comprises a lower positioning support and an upper positioning support which are fixed on the workbench through bolts respectively, the lower positioning support and the upper positioning support are distributed in the left-right direction, a lower profile positioning wheel which is controlled to lift through an electric cylinder is arranged on the lower positioning support, an upper profile positioning wheel is arranged on the upper positioning support, and the upper profile positioning wheel and the lower profile positioning wheel are matched with the profile and can circumferentially rotate.

According to an advantageous embodiment, the actuating assembly comprises a guide rail fixedly arranged at the upper end of the workbench, a supporting seat capable of transversely moving under the control of an electric cylinder is slidably arranged on the guide rail, one end, close to the positioning assembly, of the supporting seat is provided with a lifting plate through the rotation of a lug plate matched with a pin shaft, one end, far away from the positioning assembly, of the lifting plate is provided with an angle adjusting unit, the lifting plate is provided with a height adjusting unit, a power head is connected to the height adjusting unit, and the power head is connected with the actuating knife holder.

According to an advantageous embodiment, the angle adjusting unit comprises two side plates arranged on the front side wall and the rear side wall of the supporting seat, arc-shaped grooves are formed in the two side plates, connecting seats with bolts arranged at one ends are symmetrically and fixedly arranged on the front side and the rear side of the outer wall of the lower end of the lifting plate, the bolts penetrate through the corresponding arc-shaped grooves and are fixed through nuts, clamping plates are arranged on the right side of the lifting plate, the angle adjusting unit further comprises fine adjusting screw rods, the lower ends of the fine adjusting screw rods are rotatably arranged on the supporting seats through bearings, the top ends of the fine adjusting screw rods are connected with operating handles, frame-type clamping frames are arranged on middle threads of the fine adjusting screw rods, and the frame-type clamping frame supporting seats are in sliding connection through limiting columns.

According to an advantageous embodiment, the grinding part and the milling part are identical in structure except for the difference of specific components mounted on the executing tool apron, and the shutter grinding wheel is mounted on the executing tool apron on the grinding part, and a silicon carbide grinding wheel, an alumina grinding wheel and the like can be selected specifically.

According to an advantageous embodiment, the upper profile feeding wheel is arranged in the material frame in a manner of sliding up and down, and the two driving gears are always in a meshed state in the process of sliding up and down.

According to an advantageous embodiment, the top of material frame is provided with the electric putter of drive end orientation downside, and electric putter's lower extreme is connected with the type of falling U frame, two spindle heads of going up profile feed wheel are installed respectively through the bearing between the inner wall of type of falling U frame, all offer the spacing groove that is used for guiding the type of falling U frame to slide from top to bottom on the lateral wall about the material frame.

According to an advantageous embodiment, the rear feed portion is identical to the front feed portion in terms of its structure, except that the rear outer wall of the frame is provided with a further mop assembly for assisting in feeding the profile.

According to an advantageous embodiment, the upper positioning support is provided with a vertical bar-shaped groove, and the upper profile positioning wheel can be fixed at any position in the bar-shaped groove through bolts.

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

Compared with the prior art, the equipment for removing the lug protruding material of the automobile hinge profile has the advantages that 1, the profile can be clamped by the rotating upper/lower profile feeding wheels by taking the profile outer surface as a reference, the profile is driven to move according to preset frequency, and the lug protruding material remained on the profile outer surface is removed stably and uniformly by matching with an adjusted cutter, so that the effects of improving efficiency and guaranteeing profile appearance quality are achieved.

2. According to the invention, the profile is clamped by the rotating upper/lower profile feeding wheels, and the lug protruding material on the upper profile is processed by taking the profile outer profile as a positioning reference after reaching the feeding station and the milling station, so that the processing effect of the whole profile is stable and consistent, the influence of the thickness variation of the profile section is avoided, and the working efficiency can be greatly improved by a mode of mechanically realizing the whole continuous processing.

Drawings

Fig. 1 is a working diagram of the present invention for processing the lug protruding material on the surface of the profile material in cooperation with the existing positioning and conveying equipment.

Fig. 2 is a front perspective view of the present invention (with the motor structure inside the power head removed).

Fig. 3 is a rear side perspective view of the present invention (with the motor structure inside the power head removed).

Fig. 4 is a perspective view showing a rear position of the milling part according to the present invention.

Fig. 5 is a perspective view of a side view of the milling portion (with the motor structure inside the power head removed) of the present invention.

Fig. 6 is a block diagram of the square frame and profile feed wheels thereon according to the present invention.

Fig. 7 is a block diagram of a profile to which the present invention is directed.

Fig. 8 is a state diagram of the present invention in which both the lower profile feed wheel and the upper profile feed wheel are attached to the profile.

In the figure, reference numerals are 1, a workbench, 2, a front feeding part, 3, a milling part, 4, a grinding part, 5, a rear feeding part, 21, a square frame, 22, a material frame, 221, a lower profile feeding wheel, 222, an upper profile feeding wheel, 23, a driving gear, 24, a transmission system, 223, an electric push rod, 224, an inverted U-shaped frame, 225, a limit groove, 226, a guide plate, 25, a material dragging assembly, 31, a positioning assembly, 32, an executing tool apron, an executing assembly, 311, a lower positioning support, 312, an upper positioning support, 313, a lower profile positioning wheel, 314, a strip-shaped groove, 315, an upper profile positioning wheel, 331, a guide rail, 332, a supporting seat, 333, a lifting plate, 334, an angle adjusting unit, 335, a height adjusting unit, 336, a power head, 3341, two side plates, 3342, an arc groove, 3343, a connecting seat, 3344, a clamping plate, 3345, a fine adjusting screw rod, 3346 and a frame-type clamping frame.

Detailed Description

The present application is described in further detail below with reference to FIGS. 1-8.

Referring to fig. 1, 2,6 and 7, an apparatus for removing earlobe materials of an automotive hinge profile includes a workbench 1, a front feeding part 2, a milling part 3, a grinding part 4 and a rear feeding part 5 are sequentially disposed on a surface of the workbench 1 from front to back, the front feeding part 2 includes a lower profile feeding wheel 221, an upper profile feeding wheel 222 and a driving gear 23, the milling part 3 is used for milling earlobes of a profile arc surface, the grinding part 4 is used for polishing positions of the profile arc surface after polishing, and driving frequencies of the rear feeding part 5 and the front feeding part 2 are the same to ensure that conveying speeds of the profiles are consistent.

When the device works, various parameters such as profile conveying speed and the like are set firstly, a start button is pressed, a material ejecting mechanism of the positioning conveying device ejects the profile to a proper position, when a material rack sensor senses that the profile is positioned at the proper position, an air claw grip is started to clamp the profile between a lower profile feeding wheel 221 and an upper profile feeding wheel 222 of a front feeding part 2, the upper profile feeding wheel 222 is controlled to be pressed down to 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 being meshed with a driving gear 23 with the same modulus and the same tooth number, so that the profile can be stably conveyed backwards, the profile sequentially passes through a milling part 3 and a grinding part 4 to finish the processing procedure of lug protruding materials, and finally is sent out by a rear feeding part 5.

Referring to fig. 1 and 6, the front feeding portion 2 further includes a square frame 21 disposed on the workbench 1, a material frame 22 is disposed at an upper end of the square frame 21, a lower profile feeding wheel 221 and an upper profile feeding wheel 222 are disposed in the material frame 22 in a manner of rotating from bottom to top, the upper profile feeding wheel 222 and the lower profile feeding wheel 221 are respectively engaged with an upper profile and a lower profile of the profile in a manner of matching with each other, so as to ensure that the profile is not affected by thickness variation of the profile section during processing, ensure that the profile can be kept stable during processing during conveying, and fixedly provide driving gears 23 on an outer wall of one end shaft head of the lower profile feeding wheel 221 and an outer wall of one end shaft head of the upper profile feeding wheel 222, and the two driving gears 23 are engaged with each other in a working state, and a transmission system 24 for driving the lower profile feeding wheel 221 to rotate is disposed in the material frame 22.

Referring to fig. 6 and 8, the upper profile feeding wheel 222 is disposed in the material frame 22 in a manner of sliding up and down, and the two driving gears 23 are always in a meshed state during the sliding up and down of the upper profile feeding wheel 222, so as to ensure that the upper profile feeding wheel 222 and the lower profile feeding wheel 221 keep the same frequency motion, ensure stable conveying of the profile, and ensure the effect of the milling portion 3 and the grinding portion 4 on the surface treatment of the profile.

With continued reference to fig. 6, the top end of the material frame 22 is provided with an electric push rod 223 with a driving end facing to the lower side, the lower end of the electric push rod 223 is connected with an inverted U-shaped frame 224, two shaft heads of the upper profile feeding wheel 222 are respectively installed between the inner walls of the inverted U-shaped frame 224 through bearings, the left and right side walls of the material frame 22 are respectively provided with a limit groove 225 for guiding the inverted U-shaped frame 224 to slide up and down, and a plurality of guide plates 226 for guiding the left and right inner and outer walls of the inverted U-shaped frame 224 are arranged at the limit grooves 225.

Specifically, the electric push rod 223 drives the inverted U-shaped frame 224 to move up and down, so as to further drive the upper profile feeding wheel 222 to move up and down to adjust the position, and it should be noted that the stroke of the telescopic movement of the electric push rod 223 is controlled within a range of the height of a tooth root of the driving gear 23, so that the two driving gears 23 are always in a meshed state in the process of moving the upper profile feeding wheel 222 up and down.

Referring to fig. 2, the rear feeding portion 5 is compared with the front feeding portion 2, and has the same structure as the front feeding portion 2 except that a material dragging assembly 25 for assisting in feeding the profile is provided, the rear feeding portion 5 is provided with the material dragging assembly 25 for further supporting the lug protruding material on the profile in the conveying process after the complete processing is completed, so as to reduce the cantilever supporting force of the lug protruding material and prevent deformation or damage at the final stage of conveying the profile, the material dragging assembly 25 adopted in the embodiment mainly comprises a material seat fixedly arranged on the material frame 22 and a top rod rotatably arranged on the material seat through threads to realize adjustable height, and balls rolling against the lower profile of the profile are arranged at the top end of the top rod in a matched manner, so that smooth conveying of the profile is ensured.

Referring to fig. 3, the milling portion 3 includes a positioning component 31 for positioning a section, an execution tool holder 32 for processing a lug protruding material on the surface of the section, and an execution component 33 for adjusting the execution tool holder 32 to attach to the lug protruding material on the surface of the section, where the positioning component 31 and the execution component 33 are both disposed in the middle of the workbench 1 through bolts, the execution tool holder 32 is disposed on the execution component 33, and a milling tool is mounted on the execution tool holder 32, and in this embodiment, a face milling cutter is used.

The positioning component 31 is arranged to further ensure circumferential support at the processing position of the profile, sufficiently eliminate the lateral force of the cutter on the profile, prevent the profile from jumping up and down, ensure stability, and control the execution tool apron 32 to drive the face milling cutter connected with the execution tool apron 33 to complete the milling and removing work of the lug protruding material on the outer wall of the profile.

Referring to fig. 2, the grinding part 4 and the milling part 3 are identical in structure except for the difference between specific components mounted on the executing tool apron 32, and the common abrasive grinding wheel is mounted on the executing tool apron 32 on the grinding part 4, in this embodiment, a shutter grinding wheel is adopted, and a silicon carbide grinding wheel, an alumina grinding wheel and the like can be selected specifically, and the specific operation process of the grinding part 4 is identical to that of the milling part 3.

Referring to fig. 5, the positioning assembly 31 includes a lower positioning support 311 and an upper positioning support 312 fixed on the workbench 1 by bolts respectively, the lower positioning support 311 and the upper positioning support 312 are arranged in left and right directions, a lower profile positioning wheel 313 which is controlled to lift by an electric cylinder is mounted on the lower positioning support 311, a vertical bar-shaped groove 314 is formed in the upper positioning support 312, an upper profile positioning wheel 315 is arranged on the upper positioning support 312, the upper profile positioning wheel 315 can be fixed at any position in the bar-shaped groove 314 by bolts, and the upper profile positioning wheel 315 and the lower profile positioning wheel 313 are matched with the profile and can both rotate circumferentially.

Referring to fig. 4, the upper profile positioning wheel 315 in the positioning assembly 31 is fixed by bolts after the initial position is adjusted, and the position of the upper profile positioning wheel 315 is kept unchanged, and the stability of the profile can be ensured by using the upper profile positioning wheel 315 as a reference of the profile during the processing.

Referring to fig. 3 and 5, the actuating assembly 33 includes a guide rail 331 fixedly disposed at an upper end of the workbench 1, a supporting seat 332 capable of moving transversely controlled by an electric cylinder is slidably disposed on the guide rail 331, a lifting plate 333 is disposed at one end of the supporting seat 332, which is close to the positioning assembly 31, through rotation of a lug plate matching pin, an angle adjusting unit 334 is disposed at one end of the lifting plate 333, which is far away from the positioning assembly 31, a height adjusting unit 335 is disposed on the lifting plate 333, a power head 336 is connected to the height adjusting unit 335, and the power head 336 is connected to the actuating blade holder 32.

The electric cylinder can control the moving position of the supporting seat 332, thereby indirectly adjusting the surface milling cutter connected with the end of the execution tool apron 32 to be attached to the lug protruding material at the front end of the profile to finish grinding, and the angle adjusting unit 334 and the height adjusting unit 335 are matched and operated during specific adjustment, so that the lug protruding material can be completely cut off during the tool grinding operation.

Referring to fig. 5, the angle adjusting unit 334 in this embodiment includes two side plates 3341 disposed on the front and rear side walls of the supporting seat 332, arc grooves 3342 are formed on the two side plates 3341, connecting seats 3343 with bolts at one ends are symmetrically disposed on the outer walls of the lower ends of the lifting plates 333, the bolts pass through the corresponding arc grooves 3342 and are fixed by nuts, clamping plates 3344 are disposed on the right side of the lifting plates 333, fine adjusting screws 3345 with lower ends rotatably disposed on the supporting seat 332 through bearings are further disposed on the right side of the lifting plates 333, the top ends of the fine adjusting screws 3345 are connected with operation handles, frame-type clamping frames 3346 are disposed on the middle threads of the fine adjusting screws 3345, and the frame-type clamping frames 3346 are slidably connected with the supporting seat 332 through limit posts, and the clamping plates 3344 are clamped in the frame-type clamping frames 3346.

When the angle adjusting unit 334 specifically operates, the frame-shaped clamping frame 3346 can be made to move up and down through the hand operating handle and the limit guiding function of the limit column, the clamping plate 3344 of the limit clamping is driven to move along with the frame-shaped clamping frame 3346 in the process of moving up and down, so that the lifting plate 333 is driven to perform angle fine adjustment (the nuts on the bolt side of the connecting seat 3343 are required to be screwed for angle fixing after adjustment is completed), the executing tool apron 32 is further driven to incline, and the face milling tool/shutter grinding wheel can be made to better attach to the outer profile of the profile, so that the outer profile of the profile is processed smoothly.

Note that, the clamping plate 3344 is not in a clamping state in the frame-type clamping frame 3346, and when the clamping plate 3344 moves up and down along with the frame-type clamping frame 3346, the clamping plate 3344 can move relatively to the frame-type clamping frame 3346 so as to adapt to the position change of the angle change of the clamping plate 3344 in the transverse direction and the up-down direction.

Referring to fig. 5, the power head 336 in the present embodiment is driven by a motor and a sprocket, so as to drive the tool apron 32 to operate, and the height adjusting unit 335 in the present embodiment adopts a current general spiral fine adjustment structure for fine adjustment, which is not described in detail in the present embodiment.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the 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 lugs on the arc surface of the profile, and 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;

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 an upper profile positioning wheel is provided on the upper positioning support, and both the upper profile positioning wheel and the lower profile positioning wheel cooperate with the profile and can rotate circumferentially.

3. The automotive hinge profile lug protrusion removal device according to claim 1, characterized in that a height adjustment unit is provided 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.

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 installed on the tool holder; the tool holder on the grinding section is equipped with a common abrasive grinding wheel.

5. The automotive hinge profile lug protrusion removal device 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, and the left and right side walls of the material frame are provided with limiting grooves for guiding the inverted U-shaped frame to slide up and down.

6. The automotive hinge profile lug protrusion removal device according to claim 2, characterized in that 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.

7. The automotive hinge profile lug protrusion removal device according to claim 5, characterized in that a plurality of guide plates for guiding the left and right inner and outer walls of the inverted U-shaped frame are provided at the limiting groove.