Die structure for deburring orifice of automobile part

Abstract

The utility model relates to an automobile part orifice deburring die structure which comprises an upper die base and a lower die base, a lower die is fixedly connected to the lower die base, a chamfering device is arranged on the lower die and comprises a cone frustum and a cylindrical table which are connected from top to bottom, the diameter of the cylindrical table is larger than that of the bottom face of the cone frustum, and the diameter of the cylindrical table is larger than that of the bottom face of the cone frustum. The cone frustum and the cylindrical table are connected through an inclined face or an arc-shaped transition face. The top face of the cylindrical table is flush with the top face of the lower die. The upper die base is fixedly connected with an upper die, and the upper die is provided with a through hole allowing the cone frustum to be inserted therein. The automobile part orifice burr removing device can quickly remove automobile part orifice burrs, and saves labor cost and management cost.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts, and in particular relates to a mold structure for deburring the holes of automobile parts. Background Art

[0002] Many automotive parts require through holes; Figure 1 The arm body 1 of the triangular arm shown in the figure has several through holes 1.1. During production, each hole 1.1 has a large burr at the opening, which affects its assembly during use. Due to the large size of this type of product, vibration deburring is not suitable, and manual deburring is inefficient and costly. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a die structure for removing burrs from the orifices of automobile parts. The die structure can quickly and conveniently remove the burrs from the orifices of large parts.

[0004] The technical solution provided by the utility model is: a mold structure for deburring the orifices of automobile parts, comprising an upper mold base and a lower mold base, wherein the lower mold base is fixedly connected to the lower mold base, and the lower mold is provided with a chamfering device, which comprises a frustum and a cylindrical cone connected from top to bottom, the diameter of the cylindrical cone is larger than the diameter of the bottom surface of the frustum, the frustum and the cylindrical cone are connected by an inclined surface or an arc-shaped transition surface, and the top surface of the cylindrical cone is flush with the top surface of the lower mold; the upper mold base is fixedly connected to the upper mold base, and the upper mold is provided with a through hole for inserting the frustum.

[0005] A cylindrical base is provided at the bottom of the cylindrical table; the diameter of the cylindrical base is larger than the diameter of the cylindrical table; the lower die is provided with an inverted T-shaped hole, and the chamfering device is inserted into the T-shaped hole through the bottom of the lower die and fixed.

[0006] The upper die and the lower die are respectively provided with bolt holes, each of which is provided with a bolt. The upper die and the lower die are respectively fixedly connected to the upper die base and the lower die base through the bolts.

[0007] This utility model employs the aforementioned structure. The part to be deburred is placed on the lower die, with the hole positioned over the cone. When the machine tool's slide moves downward, the upper die moves downward, pressing down on the burr-free surface of the part. The force of the punch press forces the part downward, and the back of the part contacts the inclined or curved transition surface (chamfered surface) between the cone and the cylindrical cone, chamfering the hole on the back of the part and achieving the desired deburring effect. This utility model allows for rapid deburring of hole openings, saving labor and management costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural diagram of a triangular arm of an automobile part;

[0009] Figure 2 It is a structural diagram of the utility model;

[0010] Figure 3 This is a schematic diagram of the upper mold structure of the present utility model;

[0011] Figure 4 This is a schematic diagram of the lower mold structure of the present utility model. DETAILED DESCRIPTION

[0012] See also Figures 2 to 4 The utility model includes an upper die base 2 and a lower die base 7. The lower die base 7 is fixedly connected to a lower die 8. The lower die 8 is provided with chamfering devices 5 and 6. The chamfering devices 5 and 6 include a frustum 5 and a cylindrical table 6 connected from top to bottom. The diameter of the cylindrical table 6 is larger than the bottom diameter of the frustum 5. The frustum 5 and the cylindrical table 6 are connected by an inclined surface or an arc-shaped transition surface (chamfered surface) 10. The top surface of the cylindrical table 5 is flush with the top surface of the lower die 8; the upper die base 2 is fixedly connected to an upper die 3, and the upper die 3 is provided with a through hole 4 for inserting the frustum 5.

[0013] The bottom of the cylindrical table 6 is provided with a cylindrical base 11; the diameter of the cylindrical base 11 is larger than the diameter of the cylindrical table 6; the lower mold 8 is provided with an inverted T-shaped hole 12, and the chamfering device is inserted into the T-shaped hole 12 through the bottom of the lower mold 8 and fixed.

[0014] The upper die 3 and the lower die 8 are respectively provided with bolt holes 13, and bolts 9 are respectively installed in the bolt holes 13. The upper die 3 and the lower die 8 are respectively fixedly connected to the upper die base 2 and the lower die base 7 by the bolts 9. With this structural form, it is easy to disassemble and assemble, and by assembling components of various specifications and models, it can be used for processing products of different specifications and sizes.

[0015] When using this tool, a part 1 to be deburred is placed on a lower die 8, with the hole positioned over a truncated cone 5, which provides positioning and guidance. The machine's slide moves downward, driving the upper die 3 downward to press against the burr-free surface of the part 1. Under the force of the punch, the part 1 descends, and the back of the part 1 contacts the chamfered inclined or curved transition surface (chamfered surface) 10 between the truncated cone 5 and the cylindrical cone 6, chamfering the hole on the back of the part 1 and achieving the desired deburring effect. This tool can quickly remove burrs from hole openings, saving labor and management costs.

Claims

1. A mold structure for deburring the orifice of an automobile part, comprising an upper mold base and a lower mold base, characterized in that: The lower die is fixedly connected to the lower die base, and the lower die is provided with a chamfering device, which includes a frustum and a cylindrical cone connected from top to bottom, the diameter of the cylindrical cone is larger than the diameter of the bottom surface of the frustum, the frustum and the cylindrical cone are connected by an inclined surface or an arc-shaped transition surface, and the top surface of the cylindrical cone is flush with the top surface of the lower die; the upper die is fixedly connected to the upper die base, and the upper die is provided with a through hole for inserting the frustum.

2. The mold structure for deburring the openings of automobile parts according to claim 1, characterized in that: A cylindrical base is provided at the bottom of the cylindrical table; the diameter of the cylindrical base is larger than the diameter of the cylindrical table; the lower die is provided with an inverted T-shaped hole, and the chamfering device is inserted into the T-shaped hole through the bottom of the lower die and fixed.

3. The mold structure for deburring the openings of automobile parts according to claim 1 or 2, characterized in that: The upper die and the lower die are respectively provided with bolt holes, and bolts are respectively provided in the bolt holes. The upper die and the lower die are respectively fixedly connected with the upper die base and the lower die base through the bolts.

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