Device for eliminating burrs of punched hole of automobile shell supporting column

Abstract

The utility model discloses a device for eliminating burrs of a punched hole of an automobile shell supporting column. The device comprises an upper die plate, a lower die plate, a guide assembly, a limiting assembly and a chamfering assembly. The upper die plate is connected with stamping equipment through a connecting rod, the lower die plate is fixed to a workbench of the stamping equipment, the upper die plate and the lower die plate are both rectangular plates, a guide assembly is arranged on one set of diagonal angles between the upper die plate and the lower die plate, a limiting assembly is arranged on the other set of diagonal angles between the upper die plate and the lower die plate, the two chamfering assemblies are arranged, and the two limiting assemblies are arranged on the upper die plate and the lower die plate respectively. The size of the positioning section of the positioning pin and the size of the punched hole of the automobile shell supporting column are designed to be the same, the chamfering arc section is used for eliminating the edge of the punched hole of the automobile shell supporting column in an inner chamfering punching mode, manual deburring is replaced, chamfering is machined through mechanical equipment, manual chamfering is replaced, and the working efficiency is improved; the labor intensity of workers is reduced, and the appearance quality of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially a device that eliminates punch hole burr. BACKGROUND

[0002] The raw material of the automobile shell support product is an aluminum alloy round pipe profile, and the two end faces of the product are designed as special shapes. According to the general processing procedure, the product needs to be completed with profiling and punching at both ends. After punching, burrs appear around the hole, which affects the installation and use of the product. Manual processing of the burrs around the hole is inefficient and uneven, which affects the appearance.

[0003] Chinese patent number CN220591767U discloses a die steel chamfering device. The output shaft of the translation cylinder drives the chamfering machine to move, which facilitates stable chamfering processing of the chamfering machine and effectively avoids the occurrence of deviation during chamfering. However, it is not suitable for chamfering of the punch hole of the automobile shell support.

[0004] In summary, it is urgent for relevant technical personnel in the field to develop a device that eliminates the burrs of the punch hole of the automobile shell support, to replace manual chamfering, improve work efficiency, reduce the labor intensity of workers, and improve the appearance quality of the product. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a device that eliminates the burrs of the punch hole of the automobile shell support, which uses mechanical equipment to process chamfers instead of manual chamfering, to improve work efficiency, reduce the labor intensity of workers, and improve the appearance quality of the product.

[0006] The utility model aims to solve the following technical problems:

[0007] A device that eliminates the burrs of the punch hole of the automobile shell support, comprising an upper die plate, a lower die plate, a guide assembly, a limiting assembly, and a chamfering assembly. The upper die plate is connected to a stamping device through a connecting rod, and the lower die plate is fixed on the workbench of the stamping device. Both the upper die plate and the lower die plate are rectangular plates. A group of guide assemblies are arranged on each of the two diagonal corners between the upper die plate and the lower die plate, and a group of limiting assemblies are arranged on each of the other two diagonal corners. The chamfering assembly is provided with two groups of components, which are symmetrically arranged with respect to the axis of the connecting rod. The chamfering assembly comprises a pressing plate, a mounting plate, and a positioning pin. The positioning pin is fixedly connected to the lower die plate through the mounting plate. A pressing plate is arranged above the positioning pin. The punch holes at both ends of the workpiece are fixed on the two positioning pins, respectively. The pressing plate is pressed against the punch holes on the workpiece. The stamping device drives the pressing plate to move downward, and the positioning pin extrudes the punch hole circle on the workpiece to form a chamfer.

[0008] The aforementioned device for eliminating burrs in the punched holes of automotive body pillars includes a positioning pin comprising a chamfered arc segment, a positioning segment, a guide segment, and a support segment. The arc segment, positioning segment, guide segment, and support segment are coaxial. The positioning segment and support segment are smoothly connected via the chamfered arc segment. The radius of the circle containing the chamfered arc segment is consistent with the radius required for chamfering the punched hole in the workpiece. The positioning segment and guide segment form an included angle α, where α is an obtuse angle. The punched hole on the workpiece is fixed to the positioning segment along the guide segment. The punched hole in the workpiece is chamfered and shaped by the chamfered arc segment under external force. The diameter of the positioning segment is consistent with the diameter of the punched hole in the workpiece.

[0009] In the aforementioned device for eliminating burrs in the punched holes of automobile body pillars, when the punched hole of the workpiece is an oblong hole, the locating pin is replaced with an oblong hole locating pin, and the pressure plate is simultaneously replaced with an oblong hole pressure plate.

[0010] The aforementioned device for eliminating burrs in the punched holes of automotive body pillars includes a guide assembly comprising a guide sleeve and a guide post; the guide sleeve and the guide post are coaxial, and the guide post can slide along the guide sleeve hole of the guide sleeve.

[0011] The aforementioned device for eliminating burrs in the punched holes of automotive body pillars includes a limiting component comprising an upper limiting post, a lower limiting post, and a washer; the upper limiting post, lower limiting post, and washer are coaxial, the washer is disposed on the top of the lower limiting post, the upper limiting post partially passes through the washer and slides to connect with the lower limiting post, and the limiting height is finely adjusted by adjusting the thickness of the washer.

[0012] The aforementioned device for eliminating burrs in the punched holes of automobile body pillars has lifting clasps on both the upper and lower template surfaces. Beneficial effects

[0013] The chamfering device for punching holes in automotive body pillars provided by this utility model utilizes the positioning section size of the positioning pin to match the size of the punching hole in the automotive body pillar. The chamfered arc section eliminates burrs on the edge of the punching hole in the automotive body pillar by stamping an inner chamfer, replacing manual burr removal. The chamfering is processed by mechanical equipment instead of manual chamfering, which improves work efficiency, reduces the labor intensity of workers, and improves the appearance quality of the product. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the figures.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 The left view;

[0017] Figure 3 yes Figure 2 A magnified view of part I;

[0018] Figure 4 is the structure diagram of the positioning pin in the utility model;

[0019] Figure 5 is Figure 4 the plan view;

[0020] Figure 6 is the structure diagram of the long round hole positioning pin;

[0021] Figure 7 is Figure 6 the plan view;

[0022] Figure 8 is the structure diagram of the limiting assembly in the utility model;

[0023] Figure 9 is the structure diagram of the guide assembly in the utility model.

[0024] The various reference numerals in the drawings represent: 1, upper die plate, 2, lower die plate, 3, pressure plate, 4, long round hole pressure plate, 5, guide assembly, 6, limiting assembly, 7, mounting plate, 8, long round hole positioning pin, 9, positioning pin, 11, workpiece, 12, hoisting clasp ring, 13, connecting rod, 51, guide sleeve, 52, guide column, 53, guide sleeve hole, 61, upper limiting column, 62, lower limiting column, 63, washer, 91, chamfered arc segment, 92, positioning segment, 93, guide segment, 94, support segment, 131, connecting rod axis. DETAILED DESCRIPTION

[0025] Referring to Figure 1 , Figure 2 , Figure 3 , the utility model discloses eliminate the device of automobile shell pillar punching hole burr, including upper die plate 1, lower die plate 2, guide assembly 5, limiting assembly 6 and chamfering assembly, the upper die plate 1 is connected through connecting rod 13 and is connected to the stamping equipment, the lower die plate 2 is fixed on the workbench of stamping equipment, the upper die plate 1 and lower die plate 2 are both rectangular plate material, a group of guide assembly 5 is arranged on each other between the upper die plate 1 and lower die plate 2, and a group of limiting assembly 6 is arranged on each other, the chamfering assembly sets two groups, and is symmetric to connecting rod axis 131, the chamfering assembly includes pressure plate 3, mounting plate 7 and positioning pin 9, the positioning pin 9 is fixedly connected to lower die plate 2 through mounting plate 7, the pressure plate 3 is arranged on the top of positioning pin 9, and the punching hole of workpiece 11 two ends is fixed on two positioning pins 9 respectively, the pressure plate 3 is tightly pressed on the periphery of the punching hole on workpiece 11, and the stamping equipment drives pressure plate 3 to go down, and the outer shape of positioning pin 9 extrudes the punching hole circle on workpiece 11 to form chamfer.

[0026] Referring to Figure 4 , Figure 5The positioning pin 9 includes a chamfered circular arc segment 91, a positioning segment 92, a guide segment 93 and a supporting segment 94; the circular arc segment 91, the positioning segment 92, the guide segment 93 and the supporting segment 94 are coaxial, the positioning segment 92 and the supporting segment 94 are connected by the chamfered circular arc segment 91, the radius of the circle where the chamfered circular arc segment 91 is located is consistent with the radius size required for the punch hole of the workpiece 11 to be chamfered, the positioning segment 92 and the guide segment 93 form an included angle a, the a is an obtuse angle, the punch hole on the workpiece 11 is fixed to the positioning segment 92 along the guide segment 93, the punch hole of the workpiece 11 is extruded and chamfered by the chamfered circular arc segment 91 under the action of an external force, the diameter of the positioning segment 92 is consistent with the hole diameter size of the punch hole of the workpiece 11, so that the hole diameter size of the punch hole of the workpiece 11 is ensured unchanged during extrusion chamfering.

[0027] Referring to Figure 6 , Figure 7 When the punch hole of the workpiece 11 is an oblong hole, the positioning pin 9 is replaced by an oblong hole positioning pin 8, and the pressure plate 3 is simultaneously replaced by an oblong hole pressure plate 4.

[0028] Referring to Figure 9 The guide assembly 5 includes a guide sleeve 51 and a guide column 52; the guide sleeve 51 and the guide column 52 are coaxial, and the guide column 52 can slide along the guide sleeve hole 53 of the guide sleeve 51.

[0029] Referring to Figure 8 The limiting assembly 6 includes an upper limiting column 61, a lower limiting column 62 and a gasket 63; the upper limiting column 61, the lower limiting column 62 and the gasket 63 are coaxial, the gasket 63 is arranged on the top of the lower limiting column 62, the upper limiting column 61 is partially connected to the lower limiting column 62 by sliding through the gasket 63, and the thickness of the gasket 63 is adjusted to fine-tune the limiting height.

[0030] Referring to Figure 1 The upper die plate 1 and the lower die plate 2 are each provided with a lifting clasp ring 12 on the facing surface.

Claims

1. A device for eliminating burrs in stamped holes of automobile body pillars, characterized in that, The utility model relates to a stamping device for workpiece (11) of the chamfering of the hole, including upper die plate (1), lower die plate (2), guide assembly (5), limiting assembly (6) and chamfering assembly, upper die plate (1) is connected stamping equipment through connecting rod (13), lower die plate (2) is fixed on the workbench of stamping equipment, upper die plate (1) and lower die plate (2) are both rectangular plate material, and a group of guide assembly (5) is arranged on each group of diagonal of upper die plate (1) and lower die plate (2) between, and a group of limiting assembly (6) is arranged on each group of diagonal of upper die plate (1) and lower die plate (2) between, the chamfering assembly sets two groups, and is set up symmetrically on connecting rod axis (131), the chamfering assembly includes pressure plate (3), mounting plate (7) and positioning pin (9), positioning pin (9) is fixedly connected lower die plate (2) through mounting plate (7), the positive overhead of positioning pin (9) is equipped with pressure plate (3), and the stamping hole of workpiece (11) both ends is fixed on two positioning pins (9) respectively, pressure plate (3) is pressed in the periphery of the stamping hole on workpiece (11), and stamping equipment drives pressure plate (3) to descend, and the chamfering of the hole on workpiece (11) is formed through the extrusion of the shape of positioning pin (9) periphery.

2. The apparatus for deburring the punch hole of the pillar of the automobile outer shell according to claim 1, characterized in that, The positioning pin (9) includes chamfering arc segment (91), positioning segment (92), guide segment (93) and support segment (94), the arc segment (91), positioning segment (92), guide segment (93) and support segment (94) are coaxial, the positioning segment (92) and support segment (94) are connected through the smooth transition of chamfering arc segment (91), the radius of the circle where the chamfering arc segment (91) is located is consistent with the radius size required by the chamfering of the stamping hole of workpiece (11), the positioning segment (92) and guide segment (93) form an included angle a, the a is obtuse, and the stamping hole on workpiece (11) is fixed to the positioning segment (92) along the guide segment (93), the stamping hole of workpiece (11) is extruded and chamfered into shape by chamfering arc segment (91) under the action of external force, and the diameter of the positioning segment (92) is consistent with the hole diameter size of the stamping hole of workpiece (11).

3. The apparatus for deburring the punched holes of the pillar of the automobile outer shell according to claim 1, wherein, When the stamping hole of workpiece (11) is an oblong hole, the positioning pin (9) is replaced by an oblong hole positioning pin (8), and the pressure plate (3) is simultaneously replaced by an oblong hole pressure plate (4).

4. The apparatus for deburring the punch hole of the pillar of the automobile outer shell according to claim 1, characterized in that, The guide assembly (5) includes a guide sleeve (51) and a guide column (52). The guide sleeve (51) and the guide column (52) are coaxial, and the guide column (52) can slide along the guide sleeve hole (53) of the guide sleeve (51).

5. The apparatus for deburring the punched holes of the pillar of the automobile outer shell according to claim 1, wherein, The limiting assembly (6) includes an upper limiting column (61), a lower limiting column (62), and a washer (63). The upper limiting column (61), the lower limiting column (62), and the washer (63) are coaxial. The washer (63) is arranged on the top of the lower limiting column (62). The upper limiting column (61) is partially connected to the lower limiting column (62) through the sliding of the washer (63). The thickness of the washer (63) is adjusted to fine-tune the limiting height.

6. The apparatus for deburring the punch hole of the pillar of the automobile outer shell according to claim 1, wherein, The upper die plate (1) and the lower die plate (2) are provided with lifting clamping rings (12) on their opposite surfaces.

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