Flattening device for automobile sun shield machining

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to a flattening device for automobile sun visor machining, which comprises a machine tool, a flattening assembly and positioning mechanisms are arranged on the machine tool, a driving mechanism is arranged in the machine tool, a plurality of groups of positioning mechanisms are connected with the driving mechanism, and the flattening assembly is arranged on the upper side of the machine tool and is used for flattening and correcting a sun visor. The multiple sets of positioning mechanisms are symmetrically arranged on the machine tool about the axis of the flattening assembly, the driving mechanism is arranged on the lower sides of the positioning mechanisms, the driving mechanism is connected with the multiple sets of positioning mechanisms at the same time and used for driving the positioning mechanisms to operate, and the driving mechanism comprises a first driving motor, a shaft rod and a linkage plate. The positioning mechanisms can be controlled to position and fix the sun visor, and when the sun visor is flattened and extends, the driving mechanism can synchronously drive the multiple positioning mechanisms to move in the horizontal direction, so that the situation that the positioning mechanisms hinder extension of the sun visor to the periphery is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, in particular to a flattening device for processing automobile sun visors. Background Art

[0002] A Chinese patent with the announcement number CN212636568U discloses a flattening device for processing automobile sun visors, including a machine tool, a feeding turntable provided on the machine tool, a plurality of sun visor positioning grooves symmetrically distributed in the center, a bracket provided on one side of the machine tool, a telescopic cylinder vertically downward provided on the bracket, a flattening plate corresponding to the position of the sun visor positioning groove provided at the telescopic end of the telescopic cylinder, a vertically upward limiting slide rod provided on the top of the flattening plate, a limiting sleeve for the limiting slide rod to pass through provided on the bracket, an elastic bottom plate provided at the bottom of the sun visor positioning groove, a reduction motor provided on the machine tool, a transmission shaft connected to the center of the feeding turntable via a bearing provided on the machine tool, and the output shaft of the reduction motor is connected to the transmission shaft in a transmission manner. The present invention has the characteristics of easy operation and high work efficiency. In the patent, the sun visor is positioned by placing the sun visor in the positioning groove, and the curved sun visor will stretch toward the surrounding during the flattening process, and the space in the positioning groove is constant, which is not conducive to the flattening and stretching of the sun visor when flattening.

[0003] Based on this, a flattening device for processing automobile sun visors was invented and designed to solve the problem. Summary of the invention

[0004] The purpose of the invention is to provide a flattening device for processing automobile sun visors to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a flattening device for processing automobile sun visors, comprising a machine tool, wherein the machine tool is provided with a flattening assembly and a positioning mechanism, wherein a driving mechanism is provided inside the machine tool, wherein a plurality of groups of the positioning mechanisms are connected to the driving mechanism, wherein the flattening assembly is arranged on the upper side of the machine tool and is used to flatten and correct the sun visor, wherein a plurality of groups of the positioning mechanisms are symmetrically arranged on the machine tool about the axis of the flattening assembly, wherein the driving mechanism is arranged on the lower side of the positioning mechanism, wherein the driving mechanism is simultaneously connected to a plurality of groups of the positioning mechanisms and is used to drive the positioning mechanisms to operate, wherein the driving mechanism comprises A first drive motor, a shaft and a linkage plate, wherein the first drive motor is arranged at the bottom of the machine tool, the output end of the first drive motor is arranged toward the machine tool operating table, the shaft is connected to the output end of the first drive motor, the end of the shaft away from the first drive motor is rotatably connected to the inner wall of the machine tool, the side wall of the shaft is provided with threads, the linkage plate and the shaft are threadedly connected to each other, the end of the linkage plate away from the shaft passes through the side wall of the machine tool, the side wall of the machine tool is provided with a first guide rail for the linkage plate to slide, and the end of the linkage plate away from the shaft is connected to the positioning mechanism. The positioning mechanism is driven by the driving mechanism to move horizontally or vertically, which is conducive to controlling the positioning mechanism to position and fix the sun visor, and when the sun visor is flattened and extended, the driving mechanism can synchronously drive multiple groups of positioning mechanisms to move horizontally to avoid the positioning mechanism hindering the sun visor from extending to the surroundings.

[0006] Furthermore, the machine tool operating table is provided with a plurality of sets of through slots in opposition to each other, and a plurality of sets of positioning mechanisms penetrate the through slots and extend to the lower side of the machine tool operating table. A connecting rod is provided between the positioning mechanism and the linkage plate, and both ends of the connecting rod are respectively hingedly matched with the positioning mechanism and the linkage plate.

[0007] By adopting the above technical solution, the linkage plate and the positioning mechanism are connected by a connecting rod, which is conducive to utilizing the driving mechanism to drive the positioning mechanism to move longitudinally, so that the positioning mechanism can be fixed.

[0008] Furthermore, the through slot is extended toward the axis direction of the machine tool, the positioning mechanism and the through slot are slidably connected to each other, a limit frame is slidably provided in the through slot, the positioning mechanism and the limit frame are slidably connected to each other, the sliding direction of the positioning mechanism is perpendicular to the sliding direction of the limit frame, and a clamping and fixing component for fixing the positioning mechanism is provided in the limit frame.

[0009] By adopting the above technical solution, the positioning mechanism is fixed in the limit frame by using a clamping and fixing assembly. When the positioning mechanism and the limit frame are fixedly connected to each other, the linkage plate moves and applies longitudinal and lateral external forces to the positioning mechanism through the connecting rod at the same time. Since the positioning mechanism is fixedly connected to the limit frame, the positioning mechanism cannot move longitudinally, and the fixed frame and the inner wall of the through groove are slidably connected to each other. At this time, the linkage plate moves to drive the positioning mechanism in the through groove to move laterally; when the clamping and fixing assembly is released, the positioning mechanism and the limit frame are slidably connected to each other, and at this time, the linkage plate moves to drive the positioning assembly to move longitudinally.

[0010] Furthermore, a second guide rail for the limiting frame to slide is provided in the through slot, and two sets of third telescopic components are oppositely provided in the through slot, and the two sets of third telescopic components are respectively abutted and matched with opposite sides of the limiting frame.

[0011] By adopting the above technical solution, the third telescopic components on both sides are respectively abutted and matched with the opposite sides of the limit frame, which is conducive to fixing the position of the limit frame after the positioning mechanism completes the horizontal position adjustment.

[0012] Furthermore, the clamping and fixing assembly is arranged in the limit frame, and the clamping and fixing assembly includes a bidirectional screw rod, and a plurality of groups of clamping plates are respectively provided at the opposite ends of the bidirectional screw rod, and the clamping plates are slidably connected to the inner wall of the limit frame, and the plurality of groups of clamping plates are respectively abutted and matched with the side walls of the positioning mechanism.

[0013] By adopting the above technical solution, the two-way screw rod drives multiple groups of clamping plates to move toward each other, which is conducive to clamping and fixing the positioning mechanism in the middle of the limit frame.

[0014] Furthermore, the positioning mechanism includes a positioning block, one end of which is connected to the driving mechanism, the positioning block extends toward the middle of the machine tool at one end away from the driving mechanism, a pressure plate is provided at one end of the positioning block away from the driving mechanism, and a universal joint is provided between the pressure plate and the positioning block.

[0015] By adopting the above technical solution and setting a universal joint between the positioning block and the pressure plate, it is beneficial to enable the pressure plate to rotate along different axes with respect to the positioning block, so as to facilitate adjustment of the direction of the pressure plate and enable the pressure plate to adapt to irregular curved sun visors.

[0016] Furthermore, a plurality of first telescopic components are provided between the pressure plate and the positioning block, the two ends of the plurality of first telescopic components are respectively hingedly connected to the pressure plate and the positioning block, and the plurality of first telescopic components are symmetrically arranged about the center line of the universal joint. By adopting the above technical solution, the two groups of first telescopic components are symmetrically arranged along the axis of the pressure plate, which makes it easy to control the rotation angle of the pressure plate perpendicular to the axis direction, thereby facilitating the control of the pressure plate.

[0017] Furthermore, a second telescopic component is hingedly provided between the positioning block and the pressing plate, and a plurality of groups of the second telescopic components are arranged with their paper projections perpendicular to the paper projections of the first telescopic components.

[0018] By adopting the above technical solution, the second telescopic assembly is arranged perpendicular to the first telescopic assembly, and the two groups of second telescopic assemblies are hinged to the pressure plate and the positioning block, so as to facilitate the control of the rotation angle in the axial direction of the pressure plate.

[0019] Furthermore, a roller is provided on the side of the pressure plate facing the machine tool, and the axis of the roller is arranged parallel to the axis of the machine tool.

[0020] By adopting the above technical solution, a roller is provided which rotates and rolls in a direction away from the machine tool, so that the sun visor can be stretched out in all directions when it is flattened, thereby avoiding the positioning mechanism from hindering the stretching.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention drives the positioning mechanism to move horizontally or vertically through the driving mechanism, which is beneficial to controlling the positioning mechanism to position and fix the sun visor, and when the sun visor is flattened and extended, the driving mechanism can synchronously drive multiple groups of positioning mechanisms to move horizontally, so as to avoid the positioning mechanism hindering the sun visor from extending to the surroundings; the relative sliding of the positioning mechanism and the limit frame is controlled by the clamping and fixing assembly, which is beneficial to enable the driving mechanism to simultaneously move the positioning mechanism horizontally or vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the driving mechanism of the present invention; Figure 4 It is a schematic diagram of the limit frame structure of the present invention; Figure 5 It is a schematic diagram of the positioning mechanism structure of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-machine tool, 11-first guide rail, 12-through slot, 13-third telescopic assembly, 14-second guide rail, 3-positioning mechanism, 31-positioning block, 32-pressure plate, 33-universal joint, 34-first telescopic assembly, 35-second telescopic assembly, 36-roller, 4-driving mechanism, 41-first driving motor, 42-shaft rod, 43-linkage plate, 44-connecting rod, 5-limiting frame, 51-bidirectional screw rod, 52-clamping plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0026] Combination Figure 1-5 : Reference Figure 1 , 2 As shown, a flattening device for processing a car sun visor includes a machine tool 1, a flattening assembly and a positioning mechanism 3 are provided on the machine tool 1, a driving mechanism 4 is provided inside the machine tool 1, multiple groups of positioning mechanisms 3 are connected to the driving mechanism 4, the flattening assembly is arranged on the upper side of the machine tool 1, and is used to flatten and correct the sun visor, multiple groups of positioning mechanisms 3 are symmetrically arranged on the machine tool 1 about the axis of the flattening assembly, the driving mechanism 4 is arranged on the lower side of the positioning mechanism 3, the driving mechanism 4 is simultaneously connected to the multiple groups of positioning mechanisms 3, and is used to drive the positioning mechanism 3 to operate, and the driving mechanism 4 includes a first driving motor 41, a shaft 42 and a linkage Plate 43, the first drive motor 41 is arranged at the bottom of the machine tool 1, the output end of the first drive motor 41 is arranged toward the operating table of the machine tool 1, the shaft 42 is connected to the output end of the first drive motor 41, the end of the shaft 42 away from the first drive motor 41 is rotatably connected to the inner wall of the machine tool 1, the side wall of the shaft 42 is provided with threads, the linkage plate 43 is threadedly connected to the shaft 42, the end of the linkage plate 43 away from the shaft 42 penetrates the side wall of the machine tool 1, the side wall of the machine tool 1 is provided with a first guide rail 11 for the linkage plate 43 to slide, and the end of the linkage plate 43 away from the shaft 42 is connected to the positioning mechanism 3. The positioning mechanism 3 is driven to move horizontally or vertically by the driving mechanism 4, which is conducive to controlling the positioning mechanism 3 to position and fix the sun visor, and when the sun visor is flattened and extended, the driving mechanism 4 can synchronously drive multiple groups of positioning mechanisms 3 to move horizontally to avoid the positioning mechanism 3 hindering the sun visor from extending to the surroundings.

[0027] Reference Figure 1 , 2As shown in Figures 3 and 4, a plurality of through slots 12 are provided in opposition on the operating table of the machine tool 1, and a plurality of positioning mechanisms 3 extend through the through slots 12 to the lower side of the operating table of the machine tool 1. A connecting rod 44 is provided between the positioning mechanism 3 and the linkage plate 43, and the two ends of the connecting rod 44 are respectively hinged and matched with the positioning mechanism 3 and the linkage plate 43. The through slot 12 is extended in the direction of the axis of the machine tool 1, and the positioning mechanism 3 and the through slot 12 are slidably connected to each other. A limit frame 5 is slidably provided in the through slot 12, and the positioning mechanism 3 and the limit frame 5 are slidably connected to each other, and the sliding direction of the positioning mechanism 3 is perpendicular to the sliding direction of the limit frame 5. A second guide rail 14 is provided in the through slot 12 for the limit frame 5 to slide, and two sets of third telescopic components 13 are provided in opposition in the through slot 12, and the two sets of third telescopic components 13 are respectively abutted and matched with the opposite sides of the limit frame 5. The clamping and fixing assembly is arranged in the limit frame 5, and the clamping and fixing assembly includes a bidirectional screw rod 51, and a plurality of clamping plates 52 are respectively arranged at opposite ends of the bidirectional screw rod 51, and the clamping plates 52 are slidably connected with the inner wall of the limit frame 5, and the plurality of clamping plates 52 are respectively abutted and matched with the side walls of the positioning mechanism 3. The linkage plate 43 and the positioning mechanism 3 are connected by the connecting rod 44, which is conducive to using the driving mechanism 4 to drive the positioning mechanism 3 to move longitudinally, so that the positioning mechanism 3 can be fixed. The positioning mechanism 3 is fixed in the limit frame 5 by the clamping and fixing assembly. When the positioning mechanism 3 and the limit frame 5 are fixedly connected to each other, the linkage plate 43 moves through the connecting rod 44 to simultaneously apply longitudinal and transverse external forces to the positioning mechanism 3. Since the positioning mechanism 3 and the limit frame 5 are fixedly connected to each other, the positioning mechanism 3 cannot move longitudinally, and the fixed frame and the inner wall of the through groove 12 are slidably connected to each other. At this time, the linkage plate 43 moves to drive the positioning mechanism 3 to move transversely in the through groove 12; when the clamping and fixing assembly is released, the positioning mechanism 3 and the limit frame 5 are slidably connected to each other, and at this time, the linkage plate 43 moves to drive the positioning assembly to move longitudinally. The third telescopic assemblies 13 on both sides are respectively abutted and matched with the opposite sides of the limit frame 5, which is conducive to fixing the position of the limit frame 5 after the positioning mechanism 3 completes the horizontal position adjustment. The two-way screw 51 drives multiple groups of clamps 52 to move toward each other, which is conducive to clamping and fixing the positioning mechanism 3 in the middle of the limit frame 5.

[0028] Reference Figure 5As shown, the driving mechanism 4 includes a first driving motor 41 and a shaft 42. The first driving motor 41 is arranged in the machine tool 1. The shaft 42 is connected to the output end of the first driving motor 41. A linkage plate 43 is arranged on the shaft 42. The linkage plate 43 and the shaft 42 are mutually threadedly connected. The end of the linkage plate 43 away from the shaft 42 passes through the side wall of the machine tool 1. The side wall of the machine tool 1 is provided with a first guide rail 11 for the linkage plate 43 to slide. The end of the linkage plate 43 away from the shaft 42 is connected to the positioning mechanism 3. A plurality of groups of through slots 12 are arranged opposite to each other on the operating table of the machine tool 1. A plurality of groups of positioning mechanisms 3 pass through the through slots 12 and extend to the lower side of the operating table of the machine tool 1. A connecting rod 44 is arranged between the positioning mechanism 3 and the linkage plate 43. The through slot 12 is extended toward the axis direction of the machine tool 1. The positioning mechanism 3 and the through slot 12 are mutually slidably connected. A third telescopic assembly 13 is arranged at the end of the through slot 12 away from the axis of the machine tool 1. The third telescopic assembly 13 and the positioning mechanism 3 are mutually abutted and matched. The two ends of the connecting rod 44 are respectively hinged and matched with the positioning mechanism 3 and the linkage plate 43. The first driving motor 41 drives the shaft 42 to rotate and control the linkage plate 43 to move longitudinally along the shaft 42, thereby simultaneously driving multiple groups of positioning mechanisms 3 to move and fix the sun visor. The linkage plate 43 and the positioning mechanism 3 are connected by the connecting rod 44, which is conducive to using the driving mechanism 4 to drive the positioning mechanism 3 to move. The third telescopic component 13 is mutually abutted and matched with the positioning mechanism 3, driving the positioning mechanism 3 to move along the through groove 12, and controlling the positioning mechanism 3 to be located on the operating table of the machine tool 1. Avoid the connecting rod 44 from hindering the movement of the positioning mechanism 3.

[0029] Specific application examples of the present invention: By driving the positioning mechanism 3 to move horizontally or vertically through the driving mechanism 4, it is helpful to control the positioning mechanism 3 to position and fix the sun visor. When the sun visor is flattened and extended, the driving mechanism 4 can synchronously drive multiple groups of positioning mechanisms 3 to move horizontally to prevent the positioning mechanism 3 from hindering the sun visor from extending to the surroundings.

[0030] Connecting the linkage plate 43 and the positioning mechanism 3 through the connecting rod 44 is conducive to utilizing the driving mechanism 4 to drive the positioning mechanism 3 to move longitudinally, so that the positioning mechanism 3 can be fixed.

[0031] The positioning mechanism 3 is fixed in the limit frame 5 by means of a clamping and fixing assembly. When the positioning mechanism 3 and the limit frame 5 are fixedly connected to each other, the linkage plate 43 moves through the connecting rod 44 to simultaneously apply longitudinal and transverse external forces to the positioning mechanism 3. Since the positioning mechanism 3 is fixedly connected to the limit frame 5, the positioning mechanism 3 cannot move longitudinally, and the fixed frame and the inner wall of the through groove 12 are slidably connected to each other. At this time, the linkage plate 43 moves to drive the positioning mechanism 3 to move transversely in the through groove 12; when the clamping and fixing assembly is released, the positioning mechanism 3 and the limit frame 5 are slidably connected to each other, and at this time, the linkage plate 43 moves to drive the positioning assembly to move longitudinally.

[0032] The third telescopic components 13 on both sides are respectively abutted and matched with the opposite sides of the limit frame 5, which is conducive to fixing the position of the limit frame 5 after the positioning mechanism 3 completes the horizontal position adjustment.

[0033] The two-way screw rod 51 drives the multiple groups of clamping plates 52 to move toward each other, which is beneficial for clamping and fixing the positioning mechanism 3 in the middle of the limiting frame 5 .

[0034] By providing a universal joint 33 between the positioning block 31 and the pressure plate 32, the pressure plate 32 can be rotated along different axes with respect to the positioning block 31, so that the direction of the pressure plate 32 can be adjusted and the pressure plate 32 can adapt to irregular curved sun visors.

[0035] The two groups of first telescopic components 34 are symmetrically arranged along the axis of the pressing plate 32 , so as to facilitate the control of the rotation angle of the pressing plate 32 perpendicular to the axis direction, which is beneficial to the control of the pressing plate 32 .

[0036] The second telescopic assembly 35 is arranged perpendicular to the first telescopic assembly 34 . The two sets of second telescopic assemblies 35 are hinged to the pressing plate 32 and the positioning block 31 , so as to control the rotation angle of the pressing plate 32 in the axial direction.

[0037] A roller 36 is provided which rotates and rolls in a direction away from the machine tool 1 , so that the sun visor can be stretched out in all directions when it is flattened, and the positioning mechanism 3 can avoid hindering the stretching.

[0038] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0039] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0040] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flattening device for processing automobile sun visors, comprising a machine tool (1), characterized in that: The machine tool (1) is provided with a flattening assembly and a positioning mechanism (3). The machine tool (1) is provided with a driving mechanism (4). A plurality of groups of the positioning mechanisms (3) are connected to the driving mechanism (4). The flattening assembly is arranged on the upper side of the machine tool (1) and is used to flatten and correct the sun visor. The plurality of groups of the positioning mechanisms (3) are symmetrically arranged on the machine tool (1) about the axis of the flattening assembly. The driving mechanism (4) is arranged on the lower side of the positioning mechanism (3). The driving mechanism (4) is simultaneously connected to the plurality of groups of the positioning mechanisms (3) and is used to drive the positioning mechanisms (3) to operate. The driving mechanism (4) comprises a first driving motor (41), a shaft (42) and a linkage plate (43). The first driving motor (41) is arranged on the At the bottom of the machine tool (1), the output end of the first drive motor (41) is arranged toward the operating table of the machine tool (1), the shaft (42) is connected to the output end of the first drive motor (41), one end of the shaft (42) away from the first drive motor (41) is rotatably connected to the inner wall of the machine tool (1), a thread is provided on the side wall of the shaft (42), the linkage plate (43) is threadedly connected to the shaft (42), one end of the linkage plate (43) away from the shaft (42) penetrates the side wall of the machine tool (1), the side wall of the machine tool (1) is provided with a first guide rail (11) for the linkage plate (43) to slide, and one end of the linkage plate (43) away from the shaft (42) is connected to the positioning mechanism (3).

2. The flattening device for processing automobile sun visors according to claim 1, characterized in that: A plurality of sets of through slots (12) are arranged in opposition on the operating table of the machine tool (1); a plurality of sets of the positioning mechanisms (3) penetrate the through slots (12) and extend to the lower side of the operating table of the machine tool (1); a connecting rod (44) is arranged between the positioning mechanism (3) and the linkage plate (43); and two ends of the connecting rod (44) are respectively hingedly connected to the positioning mechanism (3) and the linkage plate (43).

3. The flattening device for processing automobile sun visors according to claim 2, characterized in that: The through slot (12) is extended toward the axis direction of the machine tool (1); the positioning mechanism (3) and the through slot (12) are slidably connected to each other; a limit frame (5) is slidably provided in the through slot (12); the positioning mechanism (3) and the limit frame (5) are slidably connected to each other; and the sliding direction of the positioning mechanism (3) is perpendicular to the sliding direction of the limit frame (5).

4. The flattening device for processing automobile sun visors according to claim 3, characterized in that: A second guide rail (14) for the limit frame (5) to slide is provided in the through slot (12), and two sets of third telescopic components (13) are oppositely provided in the through slot (12). The two sets of third telescopic components (13) are respectively abutted and matched with opposite sides of the limit frame (5).

5. The flattening device for automobile sun visor processing according to claim 3, characterized in that: The clamping and fixing assembly is arranged in the limit frame (5), and the clamping and fixing assembly comprises a bidirectional screw rod (51). The two opposite ends of the bidirectional screw rod (51) are respectively provided with a plurality of clamping plates (52). The clamping plates (52) are slidably connected to the inner wall of the limit frame (5), and the plurality of clamping plates (52) are respectively abutted and matched with the side walls of the positioning mechanism (3).

6. The flattening device for processing automobile sun visors according to claim 1, characterized in that: The positioning mechanism (3) comprises a positioning block (31), one end of the positioning block (31) is connected to the driving mechanism (4), an end of the positioning block (31) away from the driving mechanism (4) extends toward the middle of the machine tool (1), and a pressure plate (32) is provided at the end of the positioning block (31) away from the driving mechanism (4), and a universal joint (33) is provided between the pressure plate (32) and the positioning block (31).

7. The flattening device for processing automobile sun visors according to claim 6, characterized in that: A plurality of groups of first telescopic components (34) are provided between the pressure plate (32) and the positioning block (31); two ends of the plurality of groups of first telescopic components (34) are respectively hingedly connected to the pressure plate (32) and the positioning block (31); and the plurality of groups of first telescopic components (34) are symmetrically arranged with respect to the center line of the universal joint (33).

8. The flattening device for processing automobile sun visors according to claim 7, characterized in that: A second telescopic assembly (35) is hingedly provided between the positioning block (31) and the pressing plate (32), and a plurality of groups of the second telescopic assemblies (35) are arranged with their paper projections perpendicular to the paper projections of the first telescopic assemblies (34).

9. The flattening device for processing automobile sun visors according to claim 8, characterized in that: A roller (36) is provided on the side of the pressure plate (32) facing the machine tool (1), and the axis of the roller (36) is arranged parallel to the axis of the machine tool (1).

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