A cutting device for automobile parts processing

Abstract

The present invention belongs to the field of metal cutting technology, and relates to a cutting device for processing automobile parts, including a base frame, a feeding system arranged on the base frame for conveying a door hinge blank, and a positioning system for fixing the door hinge blank, a linear electric guide rail is installed on the base frame, a slider of the linear electric guide rail is connected to a connecting frame, a cutting machine 1 is installed on the connecting frame, a guide plate 1 and a guide plate 2 are connected to the base frame, a feeding channel is formed between the guide plate 1 and the guide plate 2, the feeding channel is perpendicular to and intersects with the feeding direction of the feeding system, and a pushing cylinder is installed on the base frame. The cutting machine 1 and the splitting assembly can realize automatic and continuous cutting of the door hinge blank, and after the splitting assembly is split, the excess part will automatically fall from the discharge frame, and then the door hinge is tilted and poured out by pushing it accordingly, so as to facilitate classification and collection.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal cutting, and specifically relates to a cutting device for processing auto parts. Background Art

[0002] A door hinge is a key component in the automotive body structure, responsible for connecting the door and the body and ensuring that the door can open and close smoothly and reliably.

[0003] Traditional methods for processing door hinges usually use manual or semi-automatic equipment for cutting and shaping. That is, first, according to the type of the door hinge, one or two vertical grooves are cut on the door hinge blank, and then the excess blank part on the outside is cut off in a direction perpendicular to the vertical grooves to obtain the approximate contour of the door hinge, and then operations such as hole opening and polishing are carried out.

[0004] However, it is difficult to achieve automated continuous feeding and cutting. Manual placement is required continuously, and after cutting, it is also impossible to automatically classify and collect the cut excess parts and the finished door hinge products, resulting in low work efficiency. For example, the patent with the publication number CN216462228U discloses a trimming device for processing door hinges. This trimming device for processing door hinges requires manually placing the door hinge on the placement seat, and each time after cutting, it is necessary to manually pick up and place the door hinge and the excess parts.

[0005] Based on the above-mentioned drawbacks in the prior art, a cutting device for processing auto parts is specially designed to overcome the drawbacks of the prior art, which can continuously cut door hinges, has a high degree of automation, and omits the steps of manual picking and placing and manual classification and collection. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned drawbacks of the prior art and provide a cutting device for processing auto parts that can continuously cut door hinges, has a high degree of automation, and omits the steps of manual picking and placing and manual classification and collection.

[0007] In order to solve the above technical problems, the present invention provides a cutting device for processing automotive parts, which includes a chassis, a feeding system arranged on the upper side of the rear part of the chassis for conveying a long strip-shaped door hinge blank from the rear to the front, and a positioning system for fixing the door hinge blank. Two vertically opposite linear electric guides are installed on the chassis, a connecting frame is connected between the sliders of the two linear electric guides, and a cutting machine I is installed on the connecting frame. The front upper side of the chassis is connected with a guide plate I and a guide plate II located behind the guide plate I. A feeding channel is formed between the guide plate I and the guide plate II, and the feeding channel is perpendicular to and intersects the feeding direction of the feeding system. A pushing cylinder parallel to the feeding channel is installed on the chassis, a connecting plate slidably arranged in the feeding channel is connected to the piston rod of the pushing cylinder, the connecting plate is located at the position where the feeding channel intersects the feeding direction of the feeding system, and a rotating support module located at the left end of the feeding channel is rotatably arranged on the connecting plate. The rotating support module is used to receive the door hinge blank with two vertical slots conveyed forward from the feeding system. A dividing component suitable for moving down to divide the door hinge blank is arranged above the feeding channel formed between the guide plate I and the guide plate II. A discharge frame communicated with the chassis is located below the dividing component. A guiding groove is formed on the guide plate I, a sliding shaft sliding in the guiding groove is connected to the rotating support module, and one end of the guiding groove far from the pushing cylinder is inclined downward.

[0008] Preferably, the feeding system includes two front and rear opposite lifting electric guides installed on the chassis, a blank support module for supporting a long strip-shaped door hinge blank to be cut is connected between the sliders of the two lifting electric guides, a limiting part protrudes from one end of the blank support module far from the cutting machine I, a pushing electric guide is installed on the chassis, a pushing block slidably arranged on the limiting part is connected to the slider of the pushing electric guide, and the pushing block is fitted with the limiting part; a semi-finished product support module is connected to the chassis, and the semi-finished product support module is used to support the door hinge blank cut by the cutting machine I. The semi-finished product support module and the blank support module are respectively located on the front and rear sides of the cutting machine I, and a gap for the cutting machine I to pass through is left between the semi-finished product support module and the blank support module. The rotating support module and the blank support module are respectively located on the front and rear sides of the semi-finished product support module.

[0009] Preferably, the positioning system includes a horizontal guide rail and a vertical guide rail connected to the chassis. A horizontal clamping block located at the right position between the blank support module and the semi-finished product support module slides on the horizontal guide rail. A slotted opening for the cutting machine I to pass through is formed on the horizontal clamping block. A vertical clamping block located above the blank support module slides on the vertical guide rail. A driving motor is installed on the chassis, a transmission shaft rotatably arranged on the chassis is connected to the output shaft of the driving motor, and there are two eccentric rod parts between the front end and the rear end of the transmission shaft. A connecting rod is rotatably arranged between the front eccentric rod part and the horizontal clamping block, and a connecting rod is also rotatably arranged between the rear eccentric rod part and the vertical clamping block.

[0010] Preferably, the splitting assembly includes a mounting frame connected between the upper sides of the first guide plate and the second guide plate. A lifting cylinder is mounted on the mounting frame. A lifting frame that slides between the first guide plate and the second guide plate is connected to the piston rod of the lifting cylinder. Cutting machines II for cutting off the redundant parts on the outer side of the door hinge blank of the rotary support module in a downward movement along the direction of the vertical slot are mounted on both the front and rear sides of the lifting frame. Through slots adapted for the passage of the cutting machines II are formed in both the first guide plate and the second guide plate.

[0011] Preferably, the splitting assembly further includes a resisting rod slidably disposed on the lifting frame. The resisting rod is adapted to move downward and abut against the door hinge blank on the rotary support module. A compression spring surrounding the resisting rod is connected between the resisting rod and the lifting frame. The compression spring is used for resetting the slidable resisting rod. A clamping frame in an L shape is connected to the lower part of the resisting rod.

[0012] Preferably, it further includes: a baffle connected to one side of the connecting plate and adapted to block the door hinge blank on the semi-finished product support module. A limiting plate connected to the upper part of the connecting plate and adapted to limit the height of the door hinge blank.

[0013] Preferably, it further includes: there are two notches opposite to each other in the front and rear on the rotary support module. The lower side of the connecting plate extends towards the discharging frame. A guiding plate extending towards the discharging frame is connected to the lower side of the rotary support module.

[0014] Preferably, it further includes an ejecting rod slidably penetrating through the rotary support module. A connecting spring surrounding the ejecting rod is connected between the ejecting rod and the interior of the rotary support module. A resisting plate adapted to abut against the ejecting rod is connected to the bottom frame. The resisting plate is located below the inclined end of the guiding slot on the first guide plate.

[0015] On the basis of overcoming the disadvantages of the prior art, the beneficial effects that the present invention can achieve are as follows:

[0016] 1. Through the cutting machine I and the splitting assembly, automatic continuous cutting of the door hinge blank can be achieved. After the splitting assembly finishes splitting, the redundant parts will automatically fall from the discharging frame, and then the door hinge is tilted out by a push along the trend, so as to facilitate classification and collection.

[0017] 2. Control the driving motor to drive the transmission shaft to rotate. The transmission shaft will drive the horizontal clamping block and the vertical clamping block to simultaneously fix and release the door hinge blank through two connecting rods respectively, so as to improve the stability during work when cutting the door hinge blank.

[0018] 3. When the sliding shaft on the rotary support module moves to the inclined end of the guide groove and the rotary support module rotates to pour the door hinge blank out to the right after the segmentation thereon, the rotation of the rotary support block will drive the ejector rod to abut against the abutting plate, and the ejector rod will then be squeezed by the abutting plate to move upward, so as to automatically and synchronously pour out and eject the segmented door hinge, improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an assembly schematic diagram of the present invention.

[0020] Figure 2 It is a cross-sectional view of the first guide plate of the present invention.

[0021] Figure 3 It is a schematic diagram of the base, the discharge frame and the guide plate of the present invention.

[0022] Figure 4 It is a schematic diagram of the rotary support module of the present invention in a dumping state.

[0023] Figure 5 It is a schematic diagram of the right side direction of the present invention.

[0024] Figure 6 It is a schematic diagram of the lifting electric guide rail, the blank support module and the limiting part of the present invention.

[0025] Figure 7 It is a schematic diagram of the chassis, the first guide plate and the second guide plate of the present invention.

[0026] Figure 8 It is a schematic diagram of the positioning system of the present invention.

[0027] Figure 9 It is a schematic diagram of the segmentation assembly of the present invention.

[0028] Figure 10 It is a cross-sectional view of the rotary support module of the present invention.

[0029] Figure 11 It is a schematic diagram of a door hinge blank in the prior art.

[0030] The reference signs in the accompanying drawings provided by the present invention are: 1 - chassis, 2 - feeding system, 21 - lifting electric guide rail, 22 - blank support module, 23 - limiting part, 24 - pushing electric guide rail, 25 - pushing block, 26 - semi-finished product support module, 3 - positioning system, 31 - transverse guide rail, 32 - transverse clamping block, 33 - vertical guide rail, 34 - vertical clamping block, 35 - driving motor, 36 - transmission shaft, 361 - eccentric rod part, 37 - connecting rod, 41 - linear electric guide rail, 42 - connecting frame, 43 - cutting machine I, 50 - guide plate I, 51 - guide plate II, 510 - through groove, 52 - pushing cylinder, 53 - connecting plate, 54 - rotating support module, 540 - notch, 55 - baffle plate, 56 - limiting plate, 57 - discharging frame, 58 - guiding plate, 6 - dividing component, 61 - mounting frame, 62 - lifting cylinder, 63 - lifting frame, 64 - cutting machine II, 65 - abutting rod, 66 - compression spring, 67 - clamping frame, 71 - abutting plate, 72 - ejecting rod, 73 - connecting spring, 81 - door hinge blank, 82 - vertical groove. Detailed implementation manners

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0032] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] In the prior art, as Figure 11 , the leftmost door hinge blank 81 is in the state before cutting, the middle door hinge blank 81 is in the state when two vertical grooves 82 are cut, and the rightmost door hinge blank 81 is in the state after the redundant part is divided.

[0034] A cutting device for processing auto parts, as Figures 1 - 4As shown, it includes a chassis 1, a feeding system 2 provided on the upper side of the rear part of the chassis 1 for conveying the long strip-shaped door hinge blank 81 from back to front, and a positioning system 3 for fixing the door hinge blank 81. The positioning system 3 temporarily fixes the door hinge blank 81 that has been moved forward to a specified position. At this time, the door hinge blank 81 cannot continue to move forward, thereby improving the stability during subsequent cutting. Two vertically opposite linear electric guides 41 are installed on the chassis 1. A connecting frame 42 is connected between the sliders of the two linear electric guides 41. A first cutting machine 43 is installed on the connecting frame 42. Control the linear electric guide 41 to drive the connecting frame 42 to drive the first cutting machine 43 to move to the right to cut the vertical groove 82 of the fixed door hinge blank 81. After cutting one vertical groove 82, control the linear electric guide 41 to drive the connecting frame 42 to drive the first cutting machine 43 to move to the left to reset. The positioning system 3 releases the door hinge blank 81. The feeding system 2 conveys the door hinge blank 81 forward for a certain distance again. The positioning system 3 fixes the door hinge blank 81 again. Then, make the first cutting machine 43 move to the right to cut the second vertical groove 82. After the second vertical groove 82 is cut, the first cutting machine 43 moves to the left to reset. Then convey the door hinge blank 81 forward for a certain distance and position it. Finally, make the first cutting machine 43 move to the right to cut off the door hinge blank 81 with two vertical grooves 82. Repeating this way can conveniently obtain multiple door hinge blanks 81 with two vertical grooves 82 (such as Figure 11 the schematic diagram of the middle door hinge blank 81 in), and at the same time, the door hinge blank 81 is continuously conveyed forward. A first guide plate 50 and a second guide plate 51 located behind the first guide plate 50 are connected to the upper side of the front part of the chassis 1. A feeding channel is formed between the first guide plate 50 and the second guide plate 51. The feeding channel is perpendicular to and intersects the feeding direction of the feeding system 2. The frontmost door hinge blank 81 will be conveyed forward to the left end of the feeding channel. A pushing cylinder 52 parallel to the feeding channel is installed on the chassis 1. A connecting plate 53 slidably arranged in the feeding channel is connected to the piston rod of the pushing cylinder 52. The connecting plate 53 is located at the position where the feeding channel intersects the feeding direction of the feeding system 2. A rotating support module 54 located at the left end of the feeding channel is rotatably arranged on the connecting plate 53. The rotating support module 54 is used to receive the door hinge blank 81 with two vertical grooves 82 conveyed forward from the feeding system 2. The feeding system 2 will convey the frontmost door hinge blank 81 with two vertical grooves 82 forward to the upper side of the rotating support module 54. At this time, control the pushing cylinder 52 to drive the connecting plate 53 to drive the rotating support module 54 to move to the right. The rotating support module 54 will drive the door hinge blank 81 to move to the right. A dividing assembly 6 suitable for moving down to divide the door hinge blank 81 is provided above the feeding channel formed between the first guide plate 50 and the second guide plate 51. When the rotating support module 54 drives the door hinge blank 81 to move to the right below the dividing assembly 6, make the dividing assembly 6 cut off the redundant part outside the door hinge blank 81 in the direction perpendicular to the vertical groove 82 to obtain the general outline of the door hinge blank 81 (such asFigure 11 Shown in the right door hinge blank 81 in (), a discharge frame 57 is connected to the underframe 1 and located below the dividing assembly 6. The excess parts cut from the door hinge blank 81 will fall out from the discharge frame 57. Placing a container below the discharge frame 57 can facilitate collection. A guide groove is formed on the first guide plate 50, and a sliding shaft sliding in the guide groove is connected to the rotary support module 54. The rightward-moving rotary support module 54 will move rightward along the guide groove. One end of the guide groove away from the pushing cylinder 52 is inclined downward. Therefore, after the dividing assembly 6 divides the door hinge blank 81 on the rotary support module 54, control the pushing cylinder 52 to drive the connecting plate 53 to drive the rotary support module 54 to continue moving rightward until the sliding shaft on the rotary support module 54 moves rightward to the inclined end of the guide groove. Then the rotary support module 54 will rotate to pour out the divided door hinge blank 81 on it to the right. Placing a container at the lower right of the second guide plate 51 can facilitate collection. In summary, it can be seen that the cutting machine 43 and the dividing assembly 6 can realize the cutting of the door hinge blank 81, and automatically and synchronously discharge the excess parts cut from the door hinge blank 81 and the divided door hinge blank 81 respectively, which is convenient for classified collection.

[0035] Such as Figures 5 - 7As shown, the feeding system 2 includes two front and rear relative lifting electric guide rails 21 mounted on the chassis 1. A blank support module 22 for supporting the long strip-shaped door hinge blank 81 to be cut is connected between the sliders of the two lifting electric guide rails 21. During feeding, the lifting electric guide rails 21 are controlled to drive the blank support module 22 to move downward. Then, the door hinge blank 81 to be cut is placed on the upper side of the blank support module 22. Then, the lifting electric guide rails 21 are controlled to drive the blank support module 22 to move upward and reset to complete the feeding. One end of the blank support module 22 away from the cutting machine 1 43 protrudes with a limiting part 23, and the limiting part 23 limits the rear position of the door hinge blank 81. A pushing electric guide rail 24 is mounted on the chassis 1, and a pushing block 25 slidably arranged on the limiting part 23 is connected to the slider of the pushing electric guide rail 24. The pushing block 25 is fitted with the limiting part 23. Since the limiting part 23 limits the rear position of the door hinge blank 81, the door hinge blank 81 on the blank support module 22 is located in front of the pushing block 25. At this time, the pushing electric guide rail 24 can be controlled to drive the pushing block 25 to move forward to convey the door hinge blank 81 forward; a semi-finished product support module 26 is connected to the chassis 1, and the semi-finished product support module 26 is used to support the door hinge blank 81 cut by the cutting machine 1 43. The semi-finished product support module 26 and the blank support module 22 are respectively located on the front and rear sides of the cutting machine 1 43. When the pushing block 25 moves forward, the door hinge blank 81 on the blank support module 22 will be conveyed forward to the semi-finished product support module 26. A gap for the cutting machine 1 43 to pass through is left between the semi-finished product support module 26 and the blank support module 22. The rotating support module 54 and the blank support module 22 are respectively located on the front and rear sides of the semi-finished product support module 26. Therefore, the door hinge blank 81 cut by the cutting machine 1 43 on the semi-finished product support module 26 will be conveyed forward to the rotating support module 54 and then conveyed by the rotating support module 54 to the lower part of the dividing assembly 6 for division.

[0036] As Figure 5 , Figure 7 and Figure 8As shown in the figure, the positioning system 3 includes a transverse guide rail 31 and a vertical guide rail 33 connected to the chassis 1. A transverse clamp 32 is slidably mounted on the transverse guide rail 31 at the right position between the blank support module 22 and the semi-finished product support module 26. A slot is provided on the transverse clamp 32 for passing through the cutting machine 43. When the transverse clamp 32 moves to the left, it will fix the door hinge blank 81 on the blank support module 22 and the semi-finished product support module 26. When the transverse clamp 32 moves to the right, it will release the door hinge blank 81 on the blank support module 22 and the semi-finished product support module 26. A vertical clamp 34 is slidably mounted on the vertical guide rail 33 above the blank support module 22. When the vertical clamp 34 moves downward, it will fix the door hinge blank 81 on the blank support module 22, and when it moves upward, it will release it. A driving motor 35 is installed on the chassis 1. A transmission shaft 36 rotatably provided on the chassis 1 is connected to the output shaft of the driving motor 35. There are two eccentric rod portions 361 between the front end and the rear end of the transmission shaft 36. A connecting rod 37 is rotatably provided between the front eccentric rod portion 361 and the transverse clamp 32, and a connecting rod 37 is also rotatably provided between the rear eccentric rod portion 361 and the vertical clamp 34. When the transmission shaft 36 rotates, it will drive the transverse clamp 32 to move left and right through the front connecting rod 37, and when the transmission shaft 36 rotates, it will drive the vertical clamp 34 to move up and down through the rear connecting rod 37. By controlling the driving motor 35 to drive the transmission shaft 36 to rotate, the transmission shaft 36 will drive the transverse clamp 32 and the vertical clamp 34 through the two connecting rods 37 respectively to simultaneously fix and release the door hinge blank.

[0037] As Figure 2 , Figure 3 , Figure 5 and Figure 9 As shown in the figure, the dividing assembly 6 includes a mounting frame 61 connected between the upper sides of the first guide plate 50 and the second guide plate 51. A lifting cylinder 62 is installed on the mounting frame 61. A lifting frame 63 slidable between the first guide plate 50 and the second guide plate 51 is connected to the piston rod of the lifting cylinder 62. Cutting machines 64 for cutting off the excess parts on the outer side of the door hinge blank 81 on the rotary support module 54 in the direction of the vertical slot 82 are installed on both the front and rear sides of the lifting frame 63. When the rotary support module 54 moves to the right and drives the door hinge blank 81 to move below the dividing assembly 6, the lifting cylinder 62 is controlled to drive the lifting frame 63 to drive the cutting machines 64 to move downward to divide the door hinge blank 81. Through slots 510 suitable for the cutting machines 64 to move downward through to divide the door hinge blank 81 are provided on both the first guide plate 50 and the second guide plate 51.

[0038] As Figure 9As shown, the segmentation assembly 6 also includes a resistance rod 65 slidably arranged on the lifting frame 63. Before the lifting frame 63 drives the cutting machine 2 64 to move downward for cutting, the resistance rod 65 is suitable for moving downward to pre-resist the door hinge blank 81 on the rotating support module 54, so as to improve the stability of the cutting machine 2 64 when it moves downward for cutting. A compression spring 66 surrounding the resistance rod 65 is connected between the resistance rod 65 and the lifting frame 63. The compression spring 66 is used for resetting the sliding resistance rod 65. As the cutting machine 2 64 gradually moves downward for deeper segmentation, the lifting frame 63 will squeeze the compression spring 66, so that the resistance rod 65 can more tightly resist the door hinge blank 81. The lower part of the resistance rod 65 is connected to an L-shaped clamping frame 67. The downward movement of the resistance rod 65 will drive the clamping frame 67 to move downward to clamp the right side of the door hinge blank 81 on the rotating support module 54 to prevent shaking and deviation, thereby further improving the stability during segmentation.

[0039] like Figure 3 and Figure 9 As shown, it also includes: a baffle 55 suitable for blocking the door hinge blank 81 on the semi-finished product supporting module 26 is connected to one side of the connecting plate 53. When the connecting plate 53 drives the door hinge blank 81 cut with two vertical grooves 82 to move right to the bottom of the dividing assembly 6 through the rotating supporting module 54, the connecting plate 53 will also drive the baffle 55 to move right to block the front of the semi-finished product supporting module 26. The upper part of the connecting plate 53 is connected to a limiting plate 56 suitable for limiting the height of the door hinge blank 81, so as to improve the stability during transportation.

[0040] like Figure 3 As shown, it also includes: two front and rear opposite grooves 540 on the rotating support module 54, the groove 540 is suitable for the downward avoidance position of the dividing component 6, and the excess part of the door hinge blank 81 divided can be better dropped out from the discharge frame 57 through the groove 540, the lower side of the connecting plate 53 extends toward the discharge frame 57, and the lower side of the rotating support module 54 is connected to a guide plate 58 extending toward the discharge frame 57, and the excess part of the door hinge blank 81 divided in the groove 540 is guided to the discharge frame 57 for discharge by the lower side of the connecting plate 53 and the guide plate 58.

[0041] like Figure 4 and Figure 10As shown in the figure, it further includes an ejector rod 72 that slides through the rotary support module 54. By moving the ejector rod 72 upward, the door hinge blank 81 is lifted, so as to conveniently discharge the divided door hinge blank 81 during pouring. A connecting spring 73 surrounding the ejector rod 72 is connected between the ejector rod 72 and the inside of the rotary support module 54. The connecting spring 73 is used to reset the upward-moved ejector rod 72. A contact plate 71 adapted to contact the ejector rod 72 is connected to the chassis 1. The contact plate 71 is located below the inclined end of the guide groove on the first guide plate 50. When the sliding shaft on the rotary support module 54 moves rightward to the inclined end of the guide groove and the rotary support module 54 rotates to pour the divided door hinge blank 81 on it to the right, the rotation of the rotary support block will drive the ejector rod 72 to contact the contact plate 71, and the ejector rod 72 will immediately be squeezed upward by the contact plate 71, so as to automatically and synchronously pour out and eject the divided door hinge, improving work efficiency.

[0042] Obviously, the embodiments described above are only part of the embodiments of the present invention, rather than all of them. They only represent the preferred implementation modes of the present invention, and are described in more specific and detailed terms. However, it should not be construed as a limitation to the scope of the patent of the present invention.

[0043] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, quantity increases or decreases, improvements and substitutions can be made. Therefore, based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

Claims

1. A cutting device for processing automotive parts, comprising a chassis (1), a feeding system (2) provided on the chassis (1) for conveying door hinge blanks (81), and a positioning system (3) for fixing the door hinge blanks (81). A linear electric guide rail (41) is installed on the chassis (1), a slider of the linear electric guide rail (41) is connected to a connecting frame (42), and a first cutting machine (43) is installed on the connecting frame (42), characterized in that, It further includes: A guide plate one (50) and a guide plate two (51) are connected to the chassis (1). A feeding channel is formed between the guide plate one (50) and the guide plate two (51). The feeding channel is perpendicular to and intersects the feeding direction of the feeding system (2). A pushing cylinder (52) is installed on the chassis (1). A connecting plate (53) that slides in the feeding channel is connected to the piston rod of the pushing cylinder (52). A rotating support module (54) is rotatably arranged on the connecting plate (53). The rotating support module (54) is used to receive the door hinge blank (81) conveyed from the feeding system (2). Above the feeding channel formed between the guide plate one (50) and the guide plate two (51), there is a splitting component (6) suitable for moving down to split the door hinge blank (81). A discharging frame (57) communicated with the chassis (1) is located below the splitting component (6). A guiding groove is formed on the guide plate one (50). A sliding shaft that slides in the guiding groove is connected to the rotating support module (54). One end of the guiding groove far from the pushing cylinder (52) is inclined downward.

2. The cutting device for processing automotive parts according to claim 1, characterized in that, The feeding system (2) includes a lifting electric guide rail (21) installed on the chassis (1). A blank support module (22) for supporting the door hinge blank (81) is connected to the slider of the lifting electric guide rail (21). A limiting portion (23) protrudes from one end of the blank support module (22) far from the cutting machine one (43). A pushing electric guide rail (24) is installed on the chassis (1). A pushing block (25) that slides on the limiting portion (23) is connected to the slider of the pushing electric guide rail (24). A semi-finished product support module (26) is connected to the chassis (1). The semi-finished product support module (26) and the blank support module (22) are respectively located on both sides of the cutting machine one (43). A gap for the cutting machine one (43) to pass through is left between the semi-finished product support module (26) and the blank support module (22). The rotating support module (54) and the blank support module (22) are respectively located on both sides of the semi-finished product support module (26).

3. A cutting device for processing automotive parts according to claim 2, characterized in that, The positioning system (3) includes a horizontal guide rail (31) and a vertical guide rail (33) connected to the chassis (1). A horizontal clamping block (32) slides on the horizontal guide rail (31). A slot for the cutting machine one (43) to pass through is formed on the horizontal clamping block (32). A vertical clamping block (34) slides on the vertical guide rail (33). A driving motor (35) is installed on the chassis (1). A transmission shaft (36) is connected to the output shaft of the driving motor (35). There are two eccentric rod portions (361) between the front end and the rear end of the transmission shaft (36). A connecting rod (37) is rotatably arranged between the front eccentric rod portion (361) and the horizontal clamping block (32). A connecting rod (37) is also rotatably arranged between the rear eccentric rod portion (361) and the vertical clamping block (34).

4. A cutting device for processing automotive parts according to claim 1, characterized in that, The splitting component (6) includes a mounting frame (61) connected between the upper sides of the first guide plate (50) and the second guide plate (51). An elevating cylinder (62) is mounted on the mounting frame (61). A lifting frame (63) is connected to the piston rod of the elevating cylinder (62). Cutting machines II (64) are mounted on both sides of the lifting frame (63). Through slots (510) adapted for the cutting machines II (64) to pass through are formed in both the first guide plate (50) and the second guide plate (51).

5. A cutting device for processing automotive parts according to claim 4, characterized in that, The splitting component (6) further includes a resisting rod (65) slidably disposed on the lifting frame (63). The resisting rod (65) is adapted to move downward and resist against the door hinge blank (81) on the rotary support module (54). A compression spring (66) is connected between the resisting rod (65) and the lifting frame (63). A clamping frame (67) shaped like an L is connected to the lower part of the resisting rod (65).

6. The cutting device for processing automotive parts according to claim 2, wherein, It further includes: a baffle (55) connected to one side of the connecting plate (53) and adapted to block the door hinge blank (81) on the semi-finished product support module (26); a limiting plate (56) connected to the upper part of the connecting plate (53) and adapted to limit the height of the door hinge blank (81).

7. A cutting device for processing automotive parts according to claim 6, characterized in that, It further includes: two notches (540) are provided on the rotary support module (54). The lower side of the connecting plate (53) extends towards the discharge frame (57). A guiding plate (58) extending towards the discharge frame (57) is connected to the lower side of the rotary support module (54).

8. A cutting device for processing automotive parts according to claim 1, characterized in that, It further includes an ejecting rod (72) slidably penetrating through the rotary support module (54). A connecting spring (73) is connected between the ejecting rod (72) and the rotary support module (54). A resisting plate (71) adapted to resist against the ejecting rod (72) is connected to the bottom frame (1). The resisting plate (71) is located below the inclined end of the guiding slot on the first guide plate (50).

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