Burr Removal Device and Method for Injection Molding of Automobile Door Inner Panels

Abstract

The present invention discloses a burr removal device and method for injection molding of automobile door inner trim panels, which relates to the technical field of automobile door inner trim panels. It includes a Y-axis drive assembly. The Y-axis drive assembly has a bridge, and the bridge has a drag chain. The drive end of the Y-axis drive assembly is connected to the movable end of the drag chain, and the movable end of the drag chain is connected to the Z-axis drive assembly, and the drive end of the Z-axis drive assembly is connected to the drive end of the Y-axis drive assembly; a connecting plate in an L shape is connected to the bottom of the Z-axis drive assembly; a suction component is connected to the bottom of the upright part of the L-shaped connecting plate; the suction component includes a drive component and a negative pressure component. The drive component is connected to the L-shaped connecting plate, and the drive component is evenly connected with the negative pressure component, and the negative pressure component performs independent suction; a flipping component is connected to the horizontal part of the L-shaped connecting plate; the flipping component is connected with a cutting component; through the above method, burr removal is realized, and material taking, burr removal and blanking can be continuously operated, which is beneficial to the continuous and rapid production of enterprises and no other equipment needs to be equipped.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive door inner panels, and specifically to a burr removal device and method for injection molding of automotive door inner panels. Background Art

[0002] Automotive door inner panels are injection molded through an injection mold, and injection burrs will be formed in the injection channels of the injection mold.

[0003] After the injection molding of the automotive door inner panel is completed, it is taken out by a manipulator and then removed by other equipment, and continuous operation cannot be carried out. At the same time, the manipulator is driven by multiple suction cups, and the multiple suction cups are supplied with air by the same air supply structure. When one suction cup has a problem, it will affect the overall suction.

[0004] Therefore, a burr removal device and method for injection molding of automotive door inner panels are proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a burr removal device and method for injection molding of automotive door inner panels to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A burr removal device for injection molding of automotive door inner panels, including a Y-axis drive assembly, an outer wall of the Y-axis drive assembly is fixedly connected with a bridge, a drag chain is movably connected inside the bridge, a drive end of the Y-axis drive assembly is connected with a movable end of the drag chain, the movable end of the drag chain is connected with a Z-axis drive assembly, and a drive end of the Z-axis drive assembly is connected with the drive end of the Y-axis drive assembly;

[0007] The bottom of the Z-axis drive assembly is connected with an L-shaped connecting plate;

[0008] The bottom of the upright part of the L-shaped connecting plate is connected with a suction assembly;

[0009] The suction assembly includes a drive assembly and a negative pressure assembly, the drive assembly is connected with the L-shaped connecting plate, the drive assembly is evenly connected with the negative pressure assembly, and the negative pressure assembly performs independent suction;

[0010] The horizontal part of the L-shaped connecting plate is connected with a flipping assembly;

[0011] The flipping assembly is connected with a cutting assembly, the cutting assembly includes a second linear drive assembly, an outer cover, a cutting tool and a groove, a drive end of the second linear drive assembly is connected with the outer cover, an upper side wall in the middle of an end face of the outer cover close to the automotive door inner panel is provided with a groove, and a cutting tool is fixedly connected to the bottom of the groove.

[0012] Further, the driving assembly includes a horizontal connecting plate, a sliding rod connecting plate, and a third linear driving assembly. The horizontal connecting plate is installed at the top of the vertical part of the L-shaped connecting plate. A third linear driving assembly is installed in the mounting hole of the horizontal connecting plate, and the driving end of the third linear driving assembly is connected to the sliding rod connecting plate.

[0013] Further, the negative pressure assembly includes a negative pressure cylinder, a leather cup, a piston, and a sliding rod. The end face of the horizontal connecting plate close to the inner door panel of the vehicle is fixedly connected with negative pressure cylinders at equal intervals. The end face of the negative pressure cylinder close to the inner door panel of the vehicle is fixedly connected with a leather cup. A piston is fitted and slidably connected in the negative pressure cylinder, and one end of the piston away from the inner door panel of the vehicle is fixedly connected with a sliding rod.

[0014] Further, the outer end of the sliding rod passes through the L-shaped connecting plate and is fixedly connected to the side wall of the sliding rod connecting plate.

[0015] Further, the flipping assembly includes a first linear driving assembly, a connecting plate, a connecting seat, a limiting sliding groove, a toothed plate, a toothed block, a guide rail, and a connecting shaft. A connecting seat and a guide rail are installed on the horizontal part of the L-shaped connecting plate. The lower end of the inner wall of the connecting seat is rotatably connected to a connecting shaft through a bearing. The connecting shaft is fixedly connected to the connecting plate. The upper end arc part of the connecting plate is fixedly connected with toothed blocks at equal intervals. The driving end of the first linear driving assembly is fixedly connected with a toothed plate meshed with the toothed blocks. A limiting sliding groove for limiting sliding connection with the guide rail is formed at the top of the toothed plate.

[0016] Further, the first linear driving assembly is fixedly installed on the side wall of the vertical part of the L-shaped connecting plate.

[0017] Further, when the flipping assembly rotates to the vertical state, the outer cover is in close contact with the end face of the inner door panel of the vehicle, and the cutting tool is below the burr.

[0018] Further, the second linear driving assembly is fixedly installed at the bottom of the connecting plate.

[0019] To better achieve the purpose of the present invention, the present invention also provides a deburring method for the inner door panel injection molding of a vehicle, and the specific steps are as follows:

[0020] Step 1: The first linear driving assembly of the flipping assembly drives the toothed plate to move towards the first linear driving assembly. The toothed plate performs translation under the action of the limiting sliding groove and the guide rail. The toothed plate drives the connecting plate to rotate through the toothed block. The connecting plate drives the connecting shaft to rotate along the connecting seat, and the connecting plate drives the cutting assembly to rotate to the horizontal setting;

[0021] Step 2: The Z-axis driving assembly moves to the uppermost end of the Y-axis driving assembly, and the bridge drives the Z-axis driving assembly to move;

[0022] Step 3: The Y-axis drive assembly drives the suction assembly to move to the outer side above the inner door panel of the vehicle door, the Z-axis drive assembly drives the suction assembly to move to the outer side of the inner door panel of the vehicle door, and then the Y-axis drive assembly drives the suction assembly to move into contact with the inner door panel of the vehicle door;

[0023] Step 4: The third linear drive assembly of the drive assembly of the suction assembly drives the slide bar connecting plate to move, the slide bar connecting plate drives the slide bar to move, the slide bar drives the piston to move, the piston pumps the air in the negative pressure cylinder of the negative pressure assembly, realizing the negative pressure treatment of the negative pressure cylinder and the leather cup, and the suction assembly adsorbs and processes the inner door panel of the vehicle door;

[0024] Step 5: The Y-axis drive assembly drives the inner door panel of the vehicle door connected to the suction assembly to separate from the injection mold, the Z-axis drive assembly drives the inner door panel of the vehicle door connected to the suction assembly to move upward, and then the Y-axis drive assembly drives the inner door panel of the vehicle door connected to the suction assembly to move to the blanking position;

[0025] Step 6: The first linear drive assembly of the flipping assembly drives the toothed plate to move away from the first linear drive assembly, the toothed plate translates under the action of the limit chute and the guide rail, the toothed plate drives the connecting plate to rotate through the tooth block, the connecting plate drives the connecting shaft to rotate along the connecting seat, the connecting plate drives the cutting assembly to rotate to the vertical setting, and the burr moves through the groove into the outer cover;

[0026] Step 7: The second linear drive assembly of the cutting assembly drives the outer cover to move upward, the outer cover drives the cutting tool to move upward, and the cutting tool cuts the burr from the side wall of the inner door panel of the vehicle door, realizing burr removal;

[0027] Step 8: The first linear drive assembly of the flipping assembly drives the toothed plate to move towards the first linear drive assembly, the toothed plate translates under the action of the limit chute and the guide rail, the toothed plate drives the connecting plate to rotate through the tooth block, the connecting plate drives the connecting shaft to rotate along the connecting seat, and the connecting plate drives the cutting assembly to rotate to the horizontal setting;

[0028] Step 9: The third linear drive assembly of the drive assembly of the suction assembly drives the slide bar connecting plate to move, the slide bar connecting plate drives the slide bar to move, the slide bar drives the piston to move, and the piston adjusts the negative pressure cylinder of the negative pressure assembly to normal pressure. After normal pressure, the negative pressure cylinder and the leather cup release and blank the inner door panel of the vehicle door.

[0029] The beneficial effects of the present invention are:

[0030] 1. The Y-axis drive assembly and the Z-axis drive assembly of the present invention cooperate to conveniently drive the flipping assembly, the cutting assembly and the suction assembly to move to different positions.

[0031] 2. The third linear drive assembly of the drive assembly of the suction and movement assembly of the present invention drives the slide bar connecting plate to move. The slide bar connecting plate drives the slide bar to move, the slide bar drives the piston to move, and the piston pumps the air in the negative pressure cylinder of the negative pressure assembly, realizing the negative pressure treatment of the negative pressure cylinder and the leather cup. The suction and movement assembly adsorbs and processes the inner door panel of the car. The negative pressure assembly is an independent suction and movement assembly. When one negative pressure assembly has problems, other negative pressure assemblies perform negative pressure suction, and they do not affect each other.

[0032] 3. The first linear drive assembly of the flipping assembly of the present invention drives the toothed plate to move towards the first linear drive assembly. The toothed plate performs translation under the action of the limit chute and the guide rail. The toothed plate drives the connecting plate to rotate through the tooth block, and the connecting plate drives the connecting shaft to rotate along the connecting seat. When the cutting assembly rotates to different positions, when the cutting assembly is horizontal during rotation, it can avoid the cutting assembly contacting the injection mold. When the cutting assembly is rotated to the vertical position, the cutting assembly is convenient to fit and contact with the inner wall of the inner door panel of the car.

[0033] 4. When the cutting assembly of the present invention is rotated to the vertical position, the second linear drive assembly of the cutting assembly drives the outer cover to move upward, and the outer cover drives the cutting tool to move upward. The cutting tool cuts off the burrs from the side wall of the inner door panel of the car, realizing burr removal. The operations of material taking, burr removal, and blanking can be continuously performed, which is beneficial for the enterprise to continuously and quickly produce without the need to equip other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0035] Figure 1 is the three-dimensional structure of the present invention Figure 1 ;

[0036] Figure 2 is the front view of the structure of the present invention;

[0037] Figure 3 is the left view of the structure of the present invention;

[0038] Figure 4 is the right view of the structure of the present invention;

[0039] Figure 5 is the three-dimensional structure of the present invention Figure 2 ;

[0040] Figure 6 is the three-dimensional structure of the present invention Figure 3 ;

[0041] Figure 7Cross-sectional view along the A-A direction of the present invention Figure 3 ;

[0042] Figure 8 is Figure 6 enlarged view of the structure at B of

[0043] Figure 9 is Figure 7 enlarged view of the structure at C of

[0044] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0045] 1. Y-axis drive assembly 2. Bridge 3. Z-axis drive assembly 4. Drag chain 5. L-shaped connecting plate 6. Flipping assembly 61. First linear drive assembly 62. Connecting plate 63. Connecting seat 64. Limit chute 65. Tooth plate 66. Tooth block 67. Guide rail 68. Connecting shaft 7. Cutting assembly 71. Second linear drive assembly 72. Outer cover 73. Cutting tool 74. Groove 8. Suction assembly 81. Negative pressure cylinder 82. Horizontal connecting plate 83. Leather cup 84. Slide rod connecting plate 85. Piston 86. Third linear drive assembly 87. Slide rod. Detailed implementation mode

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Next, the present invention will be further described in conjunction with the embodiments. Embodiment 1

[0048] As Figure 1 , 2 , 3, 4, 5, 6, 7, 8 and 9 show, the burr removal device for injection molding of the inner door panel of an automobile, including a Y-axis drive assembly 1, the outer wall of the Y-axis drive assembly 1 is fixedly connected with a bridge 2, a drag chain 4 is movably connected in the bridge 2, the drive end of the Y-axis drive assembly 1 is connected with the movable end of the drag chain 4, the movable end of the drag chain 4 is connected with the Z-axis drive assembly 3, and the drive end of the Z-axis drive assembly 3 is connected with the drive end of the Y-axis drive assembly 1;

[0049] The Y-axis drive assembly 1 and the drag chain 4 are selected as linear module slides;

[0050] The bottom of the Z-axis drive assembly 3 is connected with an L-shaped connecting plate 5;

[0051] The bottom of the upright part of the L-shaped connecting plate 5 is connected with a suction assembly 8;

[0052] The Y-axis drive assembly 1 and the Z-axis drive assembly 3 cooperate to conveniently drive the flipping assembly 6, the cutting assembly 7, and the suction assembly 8 to move to different positions.

[0053] The suction assembly 8 includes a drive assembly and a negative pressure assembly. The drive assembly is connected to the L-shaped connecting plate 5, and the drive assembly is evenly connected with the negative pressure assembly, and the negative pressure assembly performs independent suction;

[0054] The drive assembly includes a horizontal connecting plate 82, a slide rod connecting plate 84, and a third linear drive assembly 86. The horizontal connecting plate 82 is installed at the top of the upright part of the L-shaped connecting plate 5. The third linear drive assembly 86 is installed in the mounting hole of the horizontal connecting plate 82, and the drive end of the third linear drive assembly 86 is connected to the slide rod connecting plate 84;

[0055] The negative pressure assembly includes a negative pressure cylinder 81, a leather cup 83, a piston 85, and a slide rod 87. The end face of the horizontal connecting plate 82 close to the inner door panel of the car is equally spaced and fixedly connected with the negative pressure cylinder 81. The end face of the negative pressure cylinder 81 close to the inner door panel of the car is fixedly connected with the leather cup 83. A piston 85 is fitted and slidably connected in the negative pressure cylinder 81. One end of the piston 85 away from the inner door panel of the car is fixedly connected with a slide rod 87;

[0056] The outer end of the slide rod 87 penetrates through the L-shaped connecting plate 5 and is fixedly connected to the side wall of the slide rod connecting plate 84;

[0057] The third linear drive assembly 86 of the drive assembly of the suction assembly 8 drives the slide rod connecting plate 84 to move. The slide rod connecting plate 84 drives the slide rod 87 to move. The slide rod 87 drives the piston 85 to move. The piston 85 pumps the air in the negative pressure cylinder 81 of the negative pressure assembly, realizing the negative pressure treatment of the negative pressure cylinder 81 and the leather cup 83. The suction assembly 8 adsorbs and treats the inner door panel of the car. The negative pressure assembly is an independent suction assembly. When one negative pressure assembly has problems, other negative pressure assemblies perform negative pressure suction, and they do not affect each other.

[0058] The flipping assembly 6 is connected to the horizontal part of the L-shaped connecting plate 5;

[0059] The flipping assembly 6 is connected with a cutting assembly 7. The cutting assembly 7 includes a second linear drive assembly 71, an outer cover 72, a cutting tool 73, and a groove 74. The drive end of the second linear drive assembly 71 is connected to the outer cover 72. A groove 74 is opened on the upper side wall of the middle part of the end face of the outer cover 72 close to the inner door panel of the car. The cutting tool 73 is fixedly connected to the bottom of the groove 74;

[0060] When the flipping assembly 6 rotates to the vertical state, the outer cover 72 is in close contact with the end face of the inner door panel of the car, and the cutting tool 73 is below the burr;

[0061] The second linear drive assembly 71 is fixedly installed at the bottom of the connecting plate 62.

[0062] When the cutting component 7 is transferred to the vertical position, the second linear drive component 71 of the cutting component 7 drives the outer cover 72 to move upward, the outer cover 72 drives the cutting tool 73 to move upward, and the cutting tool 73 cuts off the burrs from the side wall of the inner door panel of the car, realizing burr removal. Loading, burr removal, and unloading can be continuously operated, which is beneficial for the enterprise to produce continuously and quickly without the need to equip other equipment. Embodiment 2

[0063] On the basis of Embodiment 1, as shown in Figure 1 、 3 、4, 5, 6, and 7, the flipping component 6 includes a first linear drive component 61, a connecting plate 62, a connecting seat 63, a limiting chute 64, a toothed plate 65, a toothed block 66, a guide rail 67, and a connecting shaft 68. A connecting seat 63 and a guide rail 67 are installed on the horizontal part of the L-shaped connecting plate 5. The lower end of the inner wall of the connecting seat 63 is rotatably connected to a connecting shaft 68 through a bearing. The connecting shaft 68 is fixedly connected to a connecting plate 62. The upper arc part of the connecting plate 62 is fixedly connected with toothed blocks 66 at equal intervals. The driving end of the first linear drive component 61 is fixedly connected with a toothed plate 65 meshed with the toothed blocks 66. The top of the toothed plate 65 is provided with a limiting chute 64 that is limited and slidably connected to the guide rail 67;

[0064] The first linear drive component 61 is installed on the side wall of the vertical part of the L-shaped connecting plate 5;

[0065] The second linear drive component 71 is fixedly installed at the bottom of the connecting plate 62.

[0066] The first linear drive component 61 of the flipping component 6 drives the toothed plate 65 to move towards the first linear drive component 61. The toothed plate 65 translates under the action of the limiting chute 64 and the guide rail 67. The toothed plate 65 drives the connecting plate 62 to rotate through the toothed blocks 66. The connecting plate 62 drives the connecting shaft 68 to rotate along the connecting seat 63. When the connecting plate 62 drives the cutting component 7 to rotate to different positions, when the cutting component 7 rotates horizontally, the cutting component 7 can be prevented from contacting the injection mold. When the cutting component 7 is transferred to the vertical position, the cutting component 7 is convenient to be in close contact with the inner wall of the inner door panel of the car.

[0067] The second linear drive component 71, the third linear drive component 86, and the first linear drive component 61 are selected as electric push rods.

[0068] The cables of the second linear drive component 71, the third linear drive component 86, and the first linear drive component 61 are arranged in the drag chain 4.

[0069] To better achieve the purpose of the present invention, the present invention also provides a deburring method for the deburring device for injecting the inner door panel of the car, and the specific steps are as follows:

[0070] Step 1: The first linear drive component 61 of the flipping component 6 drives the toothed plate 65 to move towards the first linear drive component 61. The toothed plate 65 translates under the action of the limit sliding groove 64 and the guide rail 67. The toothed plate 65 drives the connecting plate 62 to rotate through the toothed block 66. The connecting plate 62 drives the connecting shaft 68 to rotate along the connecting seat 63. The connecting plate 62 drives the cutting component 7 to rotate to a horizontal setting, which can avoid the cutting component 7 from contacting the injection mold and can protect the cutting component 7;

[0071] Step 2: The Z-axis drive component 3 moves to the uppermost end of the Y-axis drive component 1, and the bridge 2 drives the Z-axis drive component 3 to move;

[0072] Step 3: The Y-axis drive component 1 drives the suction component 8 to move to the outer side above the inner door panel of the car. The Z-axis drive component 3 drives the suction component 8 to move to the outer side of the inner door panel of the car. The Y-axis drive component 1 then drives the suction component 8 to move into contact with the inner door panel of the car;

[0073] Step 4: The third linear drive component 86 of the drive component of the suction component 8 drives the slide bar connecting plate 84 to move. The slide bar connecting plate 84 drives the slide bar 87 to move. The slide bar 87 drives the piston 85 to move. The piston 85 pumps the air in the negative pressure cylinder 81 of the negative pressure component, realizing the negative pressure treatment of the negative pressure cylinder 81 and the leather cup 83. The suction component 8 adsorbs and processes the inner door panel of the car. The negative pressure component is an independent suction component. When one negative pressure component has problems, other negative pressure components perform negative pressure suction, and they do not affect each other;

[0074] Step 5: The Y-axis drive component 1 drives the inner door panel of the car connected to the suction component 8 to separate from the injection mold. The Z-axis drive component 3 drives the inner door panel of the car connected to the suction component 8 to move upward. The Y-axis drive component 1 then drives the inner door panel of the car connected to the suction component 8 to move to the blanking position. The Y-axis drive component 1 and the Z-axis drive component 3 cooperate to conveniently drive the flipping component 6, the cutting component 7, and the suction component 8 to move to different positions;

[0075] Step 6: The first linear drive component 61 of the flipping component 6 drives the toothed plate 65 to move away from the first linear drive component 61. The toothed plate 65 translates under the action of the limit sliding groove 64 and the guide rail 67. The toothed plate 65 drives the connecting plate 62 to rotate through the toothed block 66. The connecting plate 62 drives the connecting shaft 68 to rotate along the connecting seat 63. The connecting plate 62 drives the cutting component 7 to rotate to a vertical setting. The burrs move through the groove 74 into the outer cover 72. When the cutting component 7 rotates to the vertical position, the cutting component 7 is convenient to contact the inner wall of the inner door panel of the car;

[0076] Step Seven: When the cutting component 7 is transferred to the vertical position, the second linear drive component 71 of the cutting component 7 drives the outer cover 72 to move upward, the outer cover 72 drives the cutting tool 73 to move upward, the cutting tool 73 cuts off the burrs from the side wall of the inner door panel of the vehicle, achieving burr removal, and the outer cover 72 collects and processes the burrs;

[0077] Step Eight: The first linear drive component 61 of the flipping component 6 drives the toothed plate 65 to move towards the first linear drive component 61. The toothed plate 65 translates under the action of the limit sliding groove 64 and the guide rail 67. The toothed plate 65 drives the connecting plate 62 to rotate through the toothed block 66. The connecting plate 62 drives the connecting shaft 68 to rotate along the connecting seat 63, and the connecting plate 62 drives the cutting component 7 to rotate to the horizontal setting;

[0078] Step Nine: The third linear drive component 86 of the drive component of the suction component 8 drives the slide rod connecting plate 84 to move. The slide rod connecting plate 84 drives the slide rod 87 to move. The slide rod 87 drives the piston 85 to move. The piston 85 adjusts the negative pressure cylinder 81 of the negative pressure component to normal pressure. After normal pressure, the negative pressure cylinder 81 and the leather cup 83 release the inner door panel of the vehicle for blanking. Material taking, burr removal, and blanking can be continuously operated, which is beneficial for the enterprise to continuously and rapidly produce without the need to equip other equipment.

[0079] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0080] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. Burr removal device for injection molding of automobile door inner trim panel, including Y-axis drive assembly (1), characterized in that: An outer wall of the Y-axis drive assembly (1) is fixedly connected to a bridge (2). A drag chain (4) is movably connected inside the bridge (2). A driving end of the Y-axis drive assembly (1) is connected to a movable end of the drag chain (4). The movable end of the drag chain (4) is connected to a Z-axis drive assembly (3), and a driving end of the Z-axis drive assembly (3) is connected to the driving end of the Y-axis drive assembly (1). A bottom of the Z-axis drive assembly (3) is connected to an L-shaped connecting plate (5). A bottom of an upright portion of the L-shaped connecting plate (5) is connected to a suction assembly (8). The suction assembly (8) includes a driving assembly and a negative pressure assembly. The driving assembly is connected to the L-shaped connecting plate (5). The driving assembly is evenly connected with the negative pressure assembly, and the negative pressure assembly performs independent suction. A transverse portion of the L-shaped connecting plate (5) is connected to a flipping assembly (6). The flipping assembly (6) is connected to a cutting assembly (7). The cutting assembly (7) includes a second linear drive assembly (71), an outer cover (72), a cutting tool (73), and a groove (74). A driving end of the second linear drive assembly (71) is connected to the outer cover (72). An upper side wall in the middle of an end face of the outer cover (72) close to the inner door trim of the vehicle is provided with a groove (74). A cutting tool (73) is fixedly connected to a bottom of the groove (74). The driving assembly includes a transverse connecting plate (82), a slide bar connecting plate (84), and a third linear drive assembly (86). The transverse connecting plate (82) is installed at a top of an upright portion of the L-shaped connecting plate (5). A third linear drive assembly (86) is installed in a mounting hole of the transverse connecting plate (82). A driving end of the third linear drive assembly (86) is connected to the slide bar connecting plate (84). The negative pressure assembly includes a negative pressure cylinder (81), a leather cup (83), a piston (85), and a slide bar (87). The transverse connecting plate (82) is fixedly connected with negative pressure cylinders (81) at equal intervals on an end face close to the inner door trim of the vehicle. A leather cup (83) is fixedly connected to an end face of the negative pressure cylinder (81) close to the inner door trim of the vehicle. A piston (85) is fitted and slidably connected inside the negative pressure cylinder (81). One end of the piston (85) away from the inner door trim of the vehicle is fixedly connected to a slide bar (87). The flipping assembly (6) includes a first linear drive assembly (61), a connecting plate (62), a connecting seat (63), a limiting chute (64), a toothed plate (65), a toothed block (66), a guide rail (67), and a connecting shaft (68). A connecting seat (63) and a guide rail (67) are installed at a transverse portion of the L-shaped connecting plate (5). A lower end of an inner wall of the connecting seat (63) is rotatably connected to a connecting shaft (68) through a bearing. The connecting shaft (68) is fixedly connected to the connecting plate (62). Toothed blocks (66) are fixedly connected at equal intervals to an upper arc portion of the connecting plate (62). A driving end of the first linear drive assembly (61) is fixedly connected to a toothed plate (65) meshingly connected with the toothed blocks (66). A limiting chute (64) for limiting and sliding connection with the guide rail (67) is provided at a top of the toothed plate (65).

2. The burr removal device for injection molding of the inner door panel of an automobile according to claim 1, characterized in that: The outer end of the sliding rod (87) penetrates through the L-shaped connecting plate (5) and is fixedly connected to the side wall of the sliding rod connecting plate (84).

3. The deburring device for injection molding of the inner door panel of an automobile according to claim 2, wherein: The first linear drive assembly (61) is fixedly installed on the side wall of the upright part of the L-shaped connecting plate (5).

4. The burr removal device for injection molding of the inner door panel of an automobile according to claim 3, characterized in that: When the flipping assembly (6) rotates to the vertical state, the outer cover (72) is in close contact with the end face of the inner door panel of the vehicle, and the cutting tool (73) is below the burr.

5. The burr removal device for injection molding of the inner door panel of an automobile according to claim 4, characterized in that: The second linear drive assembly (71) is fixedly installed at the bottom of the connecting plate (62).

6. A deburring method for the deburring device for the injection-molded inner door panel of an automobile according to claim 5, characterized in that: The specific steps are as follows: Step 1: The first linear drive assembly (61) of the flipping assembly (6) drives the toothed plate (65) to move towards the first linear drive assembly (61). The toothed plate (65) moves horizontally under the action of the limit sliding groove (64) and the guide rail (67). The toothed plate (65) drives the connecting plate (62) to rotate through the toothed block (66). The connecting plate (62) drives the connecting shaft (68) to rotate along the connecting seat (63). The connecting plate (62) drives the cutting assembly (7) to rotate to the horizontal setting; Step 2: The Z-axis drive assembly (3) moves to the uppermost end of the Y-axis drive assembly (1), and the bridge (2) drives the Z-axis drive assembly (3) to move; Step 3: The Y-axis drive assembly (1) drives the suction assembly (8) to move to the upper outer side of the inner door panel of the vehicle. The Z-axis drive assembly (3) drives the suction assembly (8) to move to the outer side of the inner door panel of the vehicle. The Y-axis drive assembly (1) then drives the suction assembly (8) to move into close contact with the inner door panel of the vehicle; Step 4: The third linear drive assembly (86) of the suction assembly (8) drives the sliding rod connecting plate (84) to move. The sliding rod connecting plate (84) drives the sliding rod (87) to move. The sliding rod (87) drives the piston (85) to move. The piston (85) pumps the air in the negative pressure cylinder (81) of the negative pressure assembly, realizing the negative pressure treatment of the negative pressure cylinder (81) and the leather cup (83). The suction assembly (8) adsorbs and processes the inner door panel of the vehicle; Step 5: The Y-axis drive assembly (1) drives the inner door panel of the vehicle connected to the suction assembly (8) to separate from the injection mold. The Z-axis drive assembly (3) drives the inner door panel of the vehicle connected to the suction assembly (8) to move upward. The Y-axis drive assembly (1) then drives the inner door panel of the vehicle connected to the suction assembly (8) to move to the blanking position; Step 6: The flipping assembly (6) drives the cutting assembly (7) to rotate to the vertical setting, and the burr moves through the groove (74) into the outer cover (72); Step 7: The second linear drive assembly (71) of the cutting assembly (7) drives the outer cover (72) to move upward. The outer cover (72) drives the cutting tool (73) to move upward. The cutting tool (73) cuts off the burr from the side wall of the inner door panel of the vehicle, realizing the removal of the burr; Step 8: The flipping assembly (6) drives the cutting assembly (7) to rotate to the horizontal setting; Step 9: The suction assembly (8) releases and blanks the inner door panel of the vehicle.

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