Automobile support blank surface treatment device and treatment process thereof

Abstract

The invention relates to an automobile support blank surface treatment device and a treatment process thereof, and relates to the field of automobile support surface treatment.The automobile support blank surface treatment device comprises a rack with a table top, a cross-shaped sliding table with an output end, a driving motor and a cutting circular cutter head; the cross-shaped sliding table is connected to the rack in a sliding mode in the first direction, and the driving direction of the cross-shaped sliding table to the output end is perpendicular to the first direction; the driving motor is fixedly connected to the output end of the cross-shaped sliding table; the driving motor is connected between the cutting circular cutter head and the output end of the cross-shaped sliding table and rotates around the central axis of the cutting circular cutter head, and the central axis of the cutting circular cutter head is parallel to the first direction. The cutting circular cutterhead is provided with a flat disc surface, an upper end surface and a blade ring surface; the peripheral wall of the cutting circular cutterhead is a blade ring surface, and the blade ring surface and the cutting circular cutterhead are coaxially arranged; and in the direction from the flat disc surface to the upper end surface, the blade ring surface inclines towards one side close to the central axis of the cutting circular cutter head. The burr processing device has the effect of improving the automation degree of burr processing.

Description

Technical Field

[0001] The present application relates to the field of automobile bracket surface treatment, and in particular to an automobile bracket blank surface treatment device and a treatment process thereof. Background Art

[0002] Automobiles include various types of parts, one of which is a U-shaped bracket. In order to ensure the hardness of the bracket, the bracket is formed by cutting a whole steel plate. However, after cutting, burrs may appear on the edges of the bracket, which will affect the quality of the bracket. At the same time, if there are burrs on the edges of the bracket, the subsequent staff may cut their fingers when moving the bracket by hand. Therefore, the burrs of the bracket need to be processed; At present, in order to deal with the burrs, some people use sandpaper to grind them, and some people use hand-held electric grinding wheels to grind the burrs. However, both of the above methods require manual operation and have a low degree of automation. Therefore, how to improve the degree of automation of burr processing is an urgent problem to be solved. Summary of the invention

[0003] In order to improve the degree of automation of burr processing, the present application provides a surface processing device for an automobile bracket blank and a processing process thereof.

[0004] In a first aspect, the present application provides a surface treatment device for a blank of an automobile bracket, which adopts the following technical solution: A surface treatment device for a blank of an automobile bracket, comprising: A rack having a table top; A cross slide having an output end, the cross slide being slidably connected to the frame along a first direction, and a driving direction of the cross slide to the output end being perpendicular to the first direction; A driving motor, wherein the driving motor is fixedly connected to an output end of the cross slide; and A cutting circular blade disc, wherein the driving motor is connected between the cutting circular blade disc and the output end of the cross slide, so that the cutting circular blade disc rotates around its own central axis, and the central axis of the cutting circular blade disc is parallel to the first direction; The cutting circular blade disc has a flat disc surface, an upper end surface and a blade ring surface, the flat disc surface and the upper end surface are distributed one after another in a first direction, and the flat disc surface is located on a side of the upper end surface close to the table surface, and the flat disc surface is perpendicular to the first direction; the outer peripheral wall of the cutting circular blade disc is a blade ring surface, and the blade ring surface is coaxially arranged with the cutting circular blade disc; in the direction from the flat disc surface to the upper end surface, the blade ring surface is inclined toward a side close to the central axis of the cutting circular blade disc.

[0005] By adopting the above technical solution, the workpiece is placed on the table, and the cross slide is driven to move downward until the circular cutting disc contacts the upper surface of the workpiece. Then, the cross slide drives the circular cutting disc to move along a plane perpendicular to the first direction, while the driving motor drives the circular cutting disc to rotate. The burrs on the edges of the product can be removed by the dihedral angle edges formed by the blade ring surface and the flat disk surface, which can improve the degree of automation of burr removal.

[0006] Optionally, a side cutter having a blade edge, wherein the side cutter is fixedly connected to one side of the flat disk surface of the cutting circular cutter disk, and in the orthographic projection in the first direction, the side cutter is located within the orthographic projection of the flat disk surface; The blade edge is located on a side of the side cutter away from the central axis of the cutting circular cutter disc, and the blade edge is arranged parallel to the first direction.

[0007] By adopting the above technical solution, after the cutting disc knife is overlapped on the upper surface of the workpiece, the edge of the side cutter contacts the side surface of the workpiece. The side cutter can remove the burrs on the side surface of the workpiece as the cutting disc knife rotates. It can remove the burrs on the side surface of the workpiece while removing the burrs on the upper surface of the workpiece, thereby improving the processing efficiency.

[0008] Optionally, a plurality of side cutting assemblies are sequentially distributed around the circumference of the cutting circular blade disc.

[0009] By adopting the above technical solution, the frequency of cleaning the side surface of the workpiece can be increased, thereby improving the processing efficiency.

[0010] Optionally, the circular cutting blade disc is provided with a slot on the flat disc surface, one end of the side cutter is located in the slot and fixedly connected to the circular cutting blade disc, and the other end is located outside the circular cutting blade disc.

[0011] By adopting the above technical solution, the side cutter is inserted into the slot. Compared with fixing the tool on the flat disk surface, it is possible to avoid a gap between the side cutter and the flat disk surface in the first direction, thereby enabling the edges of the workpiece to be cleaned more thoroughly.

[0012] Optionally, an avoidance gap is formed between the inner wall of the slot and the blade edge in the radial direction of the circular cutting disc, and the avoidance gap is located on a side of the blade edge away from the central axis of the circular cutting disc.

[0013] By adopting the above technical solution, after the burr is removed by the blade edge, the cut edge can temporarily enter the avoidance gap, which can prevent the removed burr from scratching the surface of the workpiece.

[0014] Optionally, the frame has a table top, and the frame is provided with an embedding groove on the table top, and the embedding groove is used for embedding the workpiece.

[0015] By adopting the above technical solution, the cross slide is usually connected to the controller, and the controller stores data for guiding the movement of the cutting circular cutter disc. Therefore, the workpiece is embedded in the groove, which can facilitate the rapid and accurate positioning of the workpiece and provide a coordinate basis for the subsequent burr removal.

[0016] Optionally, a plurality of lifting components are further included, and the lifting components include: A supporting rod, the supporting rod being passed through the table top and being able to slide on the table top along a first direction so that the supporting rod can be adjusted between a storage posture and a supporting posture; and A first linear driving member, wherein the first linear driving member is fixedly connected between the frame and the top support rod, and is used for driving the top support rod to move along a first direction; When the top support rod is in the storage posture, the top end of the top support rod is located in the embedding groove; When the supporting rod is in a supporting posture, the top end of the supporting rod is higher than the table top.

[0017] By adopting the above technical solution, when preparing for operation, the workpiece is placed in the embedding groove, and when operating, the workpiece is supported above the table surface by a supporting rod to prevent the table surface from interfering with the side cutter.

[0018] Optionally, it further includes a material pressing assembly, wherein the material pressing assembly includes a multi-stage telescopic rod and a suction cup; One end of the multi-stage telescopic rod is rotatably connected to the output end of the cross slide, and the other end is rotatably connected to the suction cup, and the rotation axis of the multi-stage telescopic rod along the output end of the cross slide and the rotation axis of the multi-stage telescopic rod along the suction cup are both parallel to the first direction; The telescopic direction of the multi-stage telescopic rod is perpendicular to the first direction. When the circular cutting disc contacts the upper surface of the workpiece, the suction cup also contacts the upper surface of the workpiece.

[0019] By adopting the above technical solution, after the suction cup is adsorbed onto the workpiece, the suction cup can fix the workpiece to prevent it from moving; then, since both ends of the multi-stage telescopic rod are hingedly connected, the cross slide can move around the suction cup to remove burrs at different positions of the workpiece.

[0020] Optionally, the pressing assembly further comprises a second linear driving member, one end of which is rotatably connected to the driving end of the cross slide, and the other end of which is rotatably connected to an end of the multi-stage telescopic rod away from the suction cup; The telescopic direction of the second linear drive member is parallel to the first direction, and the rotation axis of the second linear drive member along the output end of the cross slide and the rotation axis along the multi-stage telescopic rod are both parallel to the first direction.

[0021] By adopting the above technical solution, if the upper surface of the workpiece is uneven, the second linear drive member can drive the suction cup to move to a desired height, so that the suction cup can fix the workpiece at different heights.

[0022] In a second aspect, the present application provides a surface treatment process for a blank of an automobile bracket, which adopts the following technical solution: A surface treatment process for a blank of an automobile bracket comprises the following steps: S1: placing the blank in a cleaning tank for cleaning to obtain a processed workpiece; S2: placing the primary processed workpiece on a table in the surface treatment device, and using a cutting circular cutter disc and a side cutter to remove burrs from the primary processed workpiece to obtain a secondary processed workpiece; S3: placing the secondary treated workpiece in a phosphating tank for phosphating treatment to obtain a tertiary treated workpiece; S4: spraying the surface of the workpiece after the three-treatment to obtain a finished product.

[0023] By adopting the above technical solution and using the above surface treatment device to remove burrs on the surface of the workpiece, the degree of automation of the operation can be improved.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention drives the circular cutting disc to rotate by a driving motor, so that the burrs can be removed by the dihedral angle edge formed by the blade ring surface and the flat disc surface, which can improve the automation degree of burr removal; 2. By setting a side cutter, the burrs on the side surface of the workpiece can be removed while removing the burrs on the upper surface of the workpiece, which can improve the processing efficiency; 3. By opening a slot on the flat surface of the cutting disc, the edges of the workpiece can be cleaned more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram of a circular cutting blade in an embodiment of the present application; Figure 3 is a schematic structural diagram of a side cutter from a first perspective in an embodiment of the present application; Figure 4 is a schematic structural diagram of a side cutter from a second viewing angle in an embodiment of the present application; Figure 5 It is a structural schematic diagram of the jacking assembly in the embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the material pressing assembly in the embodiment of the present application.

[0026] Explanation of the reference numerals: 1. frame; 11. table top; 12. embedding groove; 13. guide groove; 2. support frame; 31. cross slide; 32. linear motor; 321. guide part; 322. sliding part; 33. drive motor; 34. connecting plate; 341. annular groove; 4. cutting circular blade disc; 41. flat disc surface; 42. upper end surface; 43. blade ring surface; 44. slot; 45. avoidance gap; 5. side cutting assembly; 51. side cutting knife; 511. blade edge; 6. lifting assembly; 61. supporting rod; 62. first linear drive member; 7. pressing assembly; 71. multi-stage telescopic rod; 711. first connecting seat; 712. second connecting seat; 72. second linear drive member; 73. suction cup. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-6 This application is described in further detail.

[0028] The present application embodiment discloses a surface treatment device for a blank of an automobile bracket. Figure 1 and Figure 2 The surface treatment device for automobile bracket blanks comprises a frame 1 having a table 11, a support frame body 2 fixed on the frame 1, a cross slide 31 installed on the support frame body 2, and a cutting circular cutter disc 4 installed on the cross slide 31; The cross slide 31 is connected to the support frame 2 for sliding along the first direction. In order to drive the support frame 2 to move along the first direction, a linear motor 32 having a guide portion 321 and a sliding portion 322 is fixedly connected to the support frame 2. The guide portion 321 of the linear motor 32 is fixedly connected to the support frame 2. The sliding portion 322 of the linear motor 32 is connected to the guide portion 321 for sliding along the first direction. The cross slide 31 is fixedly connected to the sliding portion 322 of the linear motor 32. The base of the cross slide 31 is fixedly connected to the sliding portion 322 of the linear motor 32. The driving direction of the cross slide 31 is perpendicular to the first direction. The cross slide 31 has an output end to drive the output end of the cross slide 31 to move on a plane perpendicular to the first direction. For the convenience of description, the plane perpendicular to the first direction is named as a transverse reference plane.

[0029] Reference Figure 1 and Figure 2 The cutting circular cutter disc 4 is perpendicular to the first direction, and the cutting circular cutter disc 4 is installed at the output end of the cross slide 31, so that the cutting circular cutter disc 4 is driven by the cross slide 31 to move on the transverse reference plane; while the cutting circular cutter disc 4 moves on the transverse reference plane, it rotates around the axis of the cutting circular cutter disc 4 itself to remove burrs on the surface of the workpiece; In order to make the cutting circular blade disc 4 rotate around its own axis, a driving motor 33 is provided between the cutting circular blade disc 4 and the output end of the cross slide 31. Specifically, the output end of the cross slide 31 is fixedly connected with a connecting disk 34, the housing of the driving motor 33 is fixedly connected to the connecting disk 34, and the output shaft of the driving motor 33 is coaxially fixedly connected to the cutting circular blade disc 4, so that the driving motor 33 drives the cutting circular blade disc 4 to rotate.

[0030] Reference Figure 2 and Figure 3 The cutting circular cutter disc 4 has a flat disc surface 41, an upper end surface 42 and a blade ring surface 43. The flat disc surface 41 is perpendicular to the first direction, the upper end surface 42 is located on the side of the flat disc surface 41 away from the table surface 11, the blade ring surface 43 is the outer peripheral surface of the cutting circular cutter disc 4, and the central axis of the blade ring surface 43 coincides with the rotation axis of the cutting circular cutter disc 4; in the direction from the flat disc surface 41 to the upper end surface 42, the blade ring surface 43 is inclined toward the side close to the rotation axis of the cutting circular cutter disc 4, that is, a dihedral angle is formed between the flat disc surface 41 and the blade ring surface 43, and the edge of the dihedral angle is a blade. After the cutting circular cutter disc 4 is placed on the upper surface of the workpiece, the blade of the cutting circular cutter disc 4 can remove burrs on the surface of the workpiece during the rotation of the cutting circular cutter disc 4.

[0031] Reference Figure 3 and Figure 4 The cutting disc 4 can remove burrs on the upper surface of the workpiece. In order to further remove burrs on the side wall of the workpiece, in some embodiments of the present application, a side cutting assembly 5 is further included. The side cutting assembly 5 is provided with a plurality of side cutting knives 51 uniformly spaced in the circumferential direction of the cutting disc 4. The side cutting assembly 5 includes a side cutting knife 51 having a blade edge 511, and the side cutting knife 51 is located on the side of the cutting circular blade disc 4 close to the table 11; the blade edge 511 of the side cutting knife 51 is parallel to the first direction, and the blade edge 511 of the side cutting knife 51 is located on the side of the side cutting knife 51 away from the central axis of the cutting circular blade disc 4; in the orthographic projection of the first direction, the blade edge 511 of the side cutting knife 51 is located on the inner side of the orthographic projection of the cutting circular blade disc 4, so that the blade edge 511 of the side cutting knife 51 can remove the burr on the side wall of the workpiece during the process of removing the burr on the upper surface of the workpiece by the cutting circular blade disc 4.

[0032] Reference Figure 3 and Figure 4 After the cutting circular blade disc 4 contacts the upper surface of the workpiece, in order to prevent a gap from appearing between the cutting circular blade discs 4, which may result in incomplete burr removal, in some embodiments of the present application, a slot 44 is provided on the flat disk surface 41 of the cutting circular blade disc 4, and the side cutting knife 51 extends into the slot 44 away from the table surface 11 and is fixedly connected to the inner wall of the slot 44, thereby preventing a gap from appearing between the side cutting knife 51 and the flat disk surface 41 in the first direction; An avoidance gap 45 is formed between the inner wall of the slot 44 and the blade edge 511 in the radial direction of the cutting circular cutter disc 4. The avoidance gap 45 is located on the side of the blade edge 511 away from the central axis of the cutting circular cutter disc 4. Due to the existence of the avoidance gap 45, the removed burrs can be temporarily stored to reduce the chances of the removed burrs scratching the workpiece.

[0033] The workpiece is placed on the table 11, and then the cross slide 31 drives the circular cutting disc 4 to move along the horizontal reference plane. During the movement, the driving motor 33 drives the circular cutting disc 4 and multiple side cutting knives 51 to rotate synchronously. While the circular cutting disc 4 removes burrs on the upper surface of the workpiece, the side cutting knives 51 remove burrs on the side walls of the workpiece.

[0034] Reference Figure 5 When placing the workpiece on the table 11, in order to position the workpiece so that the workpiece can be placed on the table 11 quickly and accurately, in some embodiments of the present application, the frame 1 is provided with a groove 12 on the table 11, and the inner contour of the groove 12 is adapted to the outer contour of the workpiece. When the workpiece is placed in the groove 12, the inner peripheral wall of the groove 12 fits with the outer peripheral wall of the workpiece, so that the workpiece can be positioned.

[0035] After the workpiece is placed in the embedding groove 12, in order to remove the burrs on the outer peripheral wall of the workpiece, in some embodiments of the present application, a lifting assembly 6 is further included, and a plurality of lifting assemblies 6 are provided, so that the workpiece is supported by the plurality of lifting assemblies 6 to improve the stability of the support; the lifting assembly 6 includes a lifting rod 61 and a first linear driving member 62; The frame 1 is provided with a guide groove 13 on the table 11, the guide groove 13 is connected with the embedding groove 12, and a corresponding support rod 61 is passed through each embedding groove 12, one end of the support rod 61 is located below the table 11, and the other end is passed through the guide groove 13; the support rod 61 can slide in the guide groove 13 along a first direction, so that the support rod 61 can be adjusted between the storage posture and the supporting posture; When the top support rod 61 is in the storage position, the top end of the top support rod 61 is located in the embedded groove 12. When the workpiece is overlapped on the top support rod 61, the bottom wall of the workpiece will be located in the embedded groove 12, so that the workpiece is limited by the inner wall of the embedded groove 12. When the top support rod 61 is in the top support posture, the top end of the top support rod 61 is located above the table 11, so that the workpiece can be separated from the embedded groove 12, which can facilitate the cutting circular cutter 4 and the side cutter 51 to process the surface of the workpiece; The first linear drive member 62 is connected between the top support rod 61 and the frame 1, so that the first linear drive member 62 drives the top support rod 61 to move along the first direction; in the present disclosure, the first linear drive member 62 is preferably a cylinder, the cylinder body of the first linear drive member 62 is fixedly connected to the frame 1, and the piston rod of the first drive cylinder is fixedly connected to the top support rod 61, so that the first linear drive member 62 can drive the top support rod 61 to move back and forth along the first direction.

[0036] Reference Figure 6 After the workpiece is supported above the table 11, in order to prevent the workpiece from shifting during the process of removing the burrs, in some embodiments of the present application, a material pressing assembly 7 is further included, and the material pressing assembly 7 includes a multi-stage telescopic rod 71, a second linear driving member 72 and a suction cup 73; The second linear drive member 72 can rotate along the connecting disk 34 around the cutting circular blade disk 4. Specifically, an annular groove 341 is provided on the outer peripheral wall of the connecting disk 34. The annular groove 341 is coaxially arranged with the cutting circular blade disk 4. A first connecting seat 711 is fixedly connected to the top of the second linear drive member 72. The first connecting seat 711 is located in the annular groove 341 and can rotate along the cutting circular blade disk 4 in the annular groove 341. In the present disclosure, the cross-sections of the first connecting seat 711 and the annular groove 341 are in an adaptive T-shape to ensure that the first connecting seat 711 rotates in the annular groove 341 while preventing the first connecting seat 711 from detaching from the annular groove 341. In the present disclosure, the second linear driving member 72 is a cylinder, the cylinder body of the second linear driving member 72 is rotatably connected to the first connecting seat 711, and the second linear driving member 72 is parallel to the first direction along the rotation axis of the first connecting seat 711, the piston rod of the second linear driving member 72 is connected to the multi-stage telescopic rod 71, and the driving direction of the second linear driving member 72 is parallel to the first direction, so that the second linear driving member 72 drives the multi-stage telescopic rod 71 to move along the first direction; The multi-stage telescopic rod 71 is located on the side of the second linear driving member 72 close to the table 11, and the telescopic direction of the multi-stage telescopic rod 71 is perpendicular to the first direction. One end of the multi-stage telescopic rod 71 is hinged to the piston rod of the second linear driving member 72, and the other end is hinged to the second connecting seat 712. Specifically, the multi-stage telescopic rod 71 is hinged to the second connecting seat 712, and the hinge axis of the multi-stage telescopic rod 71 along the second linear driving member 72 and the hinge axis along the second connecting seat 712 are parallel to the first direction; the suction cup 73 is fixedly connected to the second connecting seat 712; During operation, the linear motor 32 drives the cross slide 31 to move downward so that the cutting circular cutter disc 4 overlaps the workpiece, and then the second linear drive member 72 drives the suction cup 73 to move downward so that the suction cup 73 overlaps the workpiece; then, the cross slide 31 drives the cutting circular cutter disc 4 and the side cutter 51 to move, while the drive motor 33 drives various knives to move to remove burrs; during the cutting process, the suction cup 73 can also be placed at different positions to perform all-round burr removal operations on the workpiece; after the burr removal is completed, the suction cup 73 is used to move the workpiece to another place to facilitate the next step of operation.

[0037] The embodiment of the present application also discloses a surface treatment process for a blank of an automobile bracket. The surface treatment process for a blank of an automobile bracket is performed using the aforementioned surface treatment device for a blank of an automobile bracket, and comprises the following steps: S1: The blank is placed in a cleaning tank for a cleaning process. After the cleaning process is completed, the blank is dried to prevent moisture on the surface of the blank from falling into subsequent processing equipment, thereby obtaining a processed workpiece; S2: placing the primary processed workpiece on the table 11 in the surface treatment device, specifically, placing the workpiece in the embedding groove 12, then driving the workpiece to move above the table 11 by the lifting assembly 6, and then removing the burrs on the edges of the workpiece by the cutting disc knife and the side cutter 51, then turning the workpiece over and repeating the above steps until all the burrs on the edges of the workpiece are removed, thereby obtaining a secondary processed workpiece; S3: placing the secondary treated workpiece in a phosphating tank for phosphating treatment to obtain a tertiary treated workpiece; S4: spraying the surface of the workpiece after the three-treatment to obtain a finished product.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A surface treatment device for a blank of an automobile bracket, characterized in that: include: A frame (1) having a table top (11); A cross slide (31) having an output end, the cross slide (31) being slidably connected to the frame (1) along a first direction, and a driving direction of the cross slide (31) for the output end being perpendicular to the first direction; A driving motor (33), wherein the driving motor (33) is fixedly connected to an output end of the cross slide (31); as well as A cutting circular blade disc (4), wherein the driving motor (33) is connected between the cutting circular blade disc (4) and an output end of the cross slide (31) so as to rotate the cutting circular blade disc (4) around its own central axis, and the central axis of the cutting circular blade disc (4) is parallel to the first direction; The cutting circular blade disc (4) comprises a flat disc surface (41), an upper end surface (42) and a blade ring surface (43); the flat disc surface (41) and the upper end surface (42) are distributed in a first direction, and the flat disc surface (41) is located on a side of the upper end surface (42) close to the table surface (11), and the flat disc surface (41) is perpendicular to the first direction; the outer peripheral wall of the cutting circular blade disc (4) is a blade ring surface (43), and the blade ring surface (43) is coaxially arranged with the cutting circular blade disc (4); in the direction from the flat disc surface (41) to the upper end surface (42), the blade ring surface (43) is inclined toward a side close to the central axis of the cutting circular blade disc (4).

2. The surface treatment device for automobile bracket blank according to claim 1, characterized in that: It also includes a side cutting assembly (5), the side cutting assembly (5) comprising: A side cutter (51) having a blade edge (511), the side cutter (51) being fixedly connected to one side of the flat disk surface (41) of the circular cutting blade disk (4), and in an orthographic projection in a first direction, the side cutter (51) is located inside the orthographic projection of the flat disk surface (41); The blade edge (511) is located on a side of the side cutter (51) away from the central axis of the cutting circular cutter disc (4), and the blade edge (511) is arranged parallel to the first direction.

3. The surface treatment device for a blank of an automobile bracket according to claim 2, characterized in that: A plurality of side cutting components (5) are sequentially distributed around the circumference of the cutting circular blade disc (4).

4. The surface treatment device for a blank of an automobile bracket according to claim 3 is characterized in that: The circular cutting blade disc (4) is provided with a slot (44) on the flat disc surface (41); one end of the side cutting blade (51) is located in the slot (44) and is fixedly connected to the circular cutting blade disc (4); and the other end is located outside the circular cutting blade disc (4).

5. The surface treatment device for automobile bracket blank according to claim 4, characterized in that: An escape gap (45) is formed between the inner wall of the slot (44) and the blade edge (511) in the radial direction of the circular cutting disc (4), and the escape gap (45) is located on a side of the blade edge (511) away from the central axis of the circular cutting disc (4).

6. The surface treatment device for automobile bracket blank according to any one of claims 1 to 5, characterized in that: The frame (1) has a table top (11), and the frame (1) is provided with an embedding groove (12) on the table top (11), and the embedding groove (12) is used for embedding a workpiece.

7. The surface treatment device for automobile bracket blank according to claim 6, characterized in that: It also includes a plurality of lifting assemblies (6), wherein the lifting assemblies (6) include: A supporting rod (61), the supporting rod (61) being inserted through the table top (11) and being capable of sliding on the table top (11) along a first direction so that the supporting rod (61) can be adjusted between a storage posture and a supporting posture; and A first linear driving member (62), the first linear driving member (62) being fixedly connected between the frame (1) and the top support rod (61) to drive the top support rod (61) to move along a first direction; When the top support rod (61) is in a retracted position, the top end of the top support rod (61) is located in the embedding groove (12); When the supporting rod (61) is in a supporting posture, the top end of the supporting rod (61) is higher than the table top (11).

8. The surface treatment device for automobile bracket blank according to claim 7, characterized in that: It also includes a material pressing assembly (7), wherein the material pressing assembly (7) includes a multi-stage telescopic rod (71) and a suction cup (73); One end of the multi-stage telescopic rod (71) is rotatably connected to the output end of the cross slide (31), and the other end is rotatably connected to the suction cup (73), and the rotation axis of the multi-stage telescopic rod (71) along the output end of the cross slide (31) and the rotation axis of the multi-stage telescopic rod (71) along the suction cup (73) are both parallel to the first direction; The telescopic direction of the multi-stage telescopic rod (71) is perpendicular to the first direction, and when the circular cutting disc (4) contacts the upper surface of the workpiece, the suction cup (73) also contacts the upper surface of the workpiece.

9. The surface treatment device for automobile bracket blank according to claim 8, characterized in that: The pressing assembly (7) further comprises a second linear driving member (72), one end of the second linear driving member (72) being rotatably connected to the driving end of the cross slide (31), and the other end of the second linear driving member (72) being rotatably connected to an end of the multi-stage telescopic rod (71) away from the suction cup (73); The telescopic direction of the second linear drive member (72) is parallel to the first direction, and the rotation axis of the second linear drive member (72) along the output end of the cross slide (31) and along the rotation axis of the multi-stage telescopic rod (71) are both parallel to the first direction.

10. A surface treatment process for a blank of an automobile bracket, characterized in that: The method comprises the following steps: S1: placing the blank in a cleaning tank for cleaning to obtain a processed workpiece; S2: placing the primary processed workpiece on a table (11) in a surface processing device, and using a cutting circular cutter (4) and a side cutter (51) to remove burrs from the primary processed workpiece to obtain a secondary processed workpiece; S3: placing the secondary treated workpiece in a phosphating tank for phosphating treatment to obtain a tertiary treated workpiece; S4: spraying the surface of the workpiece after the three-treatment to obtain a finished product.

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