Automatic positioning device for trimming of outer plate of covering part

Abstract

The utility model discloses an automatic positioning device for trimming of a covering part outer plate, the positioning device is arranged on a lower die of a die, the positioning device comprises a fixed seat and a positioning elastic lifting pin arranged on the fixed seat, an elastic structure is arranged at the lower part of the positioning elastic lifting pin, and the positioning elastic lifting pin is arranged corresponding to a waste material area of trimming of the outer plate. The trimming automatic positioning device is arranged corresponding to a waste area outside the trimming conformance shape of the outer plate, and the automatic positioning device is used for positioning a hole site of the waste area through an ejected ejection pin so as to ensure the stability of the outer plate on the trimming die; and the pressing core presses the plate, the cutter block begins to trim and touches an elastic lifting pin of the positioning device, the elastic lifting pin can stretch back to the positioning seat without influencing the work of the die, and the operation is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile die technical field especially is involved in a kind of covering piece outer plate trimming automatic positioning device. BACKGROUND

[0002] At present, in the field of automobile panel die outer plate, it is difficult to position the outer plate with small modeling gap (such as the cover, fender) in the trimming process, which leads to unstable trimming and affects the forming quality of the panel.

[0003] Generally, the outer plate with small modeling gap of the panel is positioned in the product during trimming, and such positioning may affect the quality due to the deformation of the panel positioning part caused by stress during work, or the positioning is achieved by using an external simple positioning plate, which affects the positioning effect due to the unstable springback of the panel. For example, the positioning mechanism of a large shallow drawing stamping part trimming die disclosed in Chinese patent CN201720347U includes a die, a punch, a punch base and a trimming ring. The punch base is provided with a positioning punch passing through the trimming ring. The surface of one side of the positioning punch is provided with a plate limiting boss, and the surface of the other side is a semicircular surface. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a covering piece outer plate trimming automatic positioning device to achieve stable trimming positioning.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The covering piece outer plate trimming automatic positioning device is arranged on the lower die of the die, and the positioning device includes a fixed seat and a positioning spring ejector pin arranged on the fixed seat. The lower part of the positioning spring ejector pin is provided with an elastic structure, and the positioning spring ejector pin is arranged corresponding to the waste area of the outer plate trimming.

[0007] Further:

[0008] One side of the lower die is provided with a type groove, and the fixed seat is fixed in the type groove by fasteners.

[0009] The fixed seat is a hollow structure.

[0010] The type groove is an L-shaped open groove.

[0011] The elastic structure is arranged in the fixed seat and corresponds to the lower end of the positioning spring ejector pin.

[0012] The bottom of the fixed seat is provided with an adjustable plug pin.

[0013] The edge of the waste area of the outer plate is provided with a positioning hole, and the top end of the positioning spring ejector pin is positioned in the positioning hole.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The automatic trimming positioning device for the outer plate of the cover part has reasonable structure, and the automatic trimming positioning device is arranged corresponding to the waste area outside the trimming of the outer plate, the automatic positioning device positions the waste area hole through the ejection of the ejector pin to ensure the stability of the outer plate on the trimming die, and the core presses the plate part, the trimming of the cutter block touches the ejector pin of the positioning device, the ejector pin can retract to the positioning seat without affecting the die work, and the operation is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0016] The contents expressed by each figure of the present specification and the marks in the figure are briefly described as follows:

[0017] Figure 1 It is a positioning state schematic view of the utility model.

[0018] Figure 2 It is a pressing down state schematic view of the utility model.

[0019] In the figure:

[0020] 1. Fixed seat, 2. Positioning ejector pin, 3. Spring, 4. Plug pin, 5. Die core, 6. Die trimming cutter block. DETAILED DESCRIPTION

[0021] The specific implementation mode of the utility model is further explained in detail by comparing the figures and describing the embodiments.

[0022] As shown in Figure 1 And Figure 2 The automatic trimming positioning device for the outer plate of the cover part is arranged on the lower die of the die, the positioning device comprises a fixed seat 1 and a positioning ejector pin 2 arranged on the fixed seat, the lower part of the positioning ejector pin is provided with an elastic structure, and the positioning ejector pin is arranged corresponding to the waste area of the trimming of the outer plate.

[0023] One side of the lower die is provided with a type groove, and the fixed seat is fixed in the type groove through fasteners; further, the type groove is an L-shaped opening groove, and the fixed seat is also L-shaped, the bottom inner side of the fixed seat is inserted into the bottom of the type groove, and the fixed seat is fixed through horizontal fastening bolts, so that the structure is stable and reliable.

[0024] The fixed seat is a hollow structure, the elastic structure is arranged in the fixed seat, is arranged corresponding to the lower end of the positioning ejector pin, and is integrally arranged in the fixed seat, so that the structure is compact.

[0025] Further, the elastic structure is a spiral spring 3, and the bottom of the fixed seat is provided with an adjustable plug pin 4; preferably, the plug pin is arranged at the bottom of the fixed seat through a threaded structure, and the force of the spring and the positioning ejector pin can be adjusted through the position of the plug pin.

[0026] The outer plate waste area edge is provided with a positioning hole, and the top end of the positioning elastic ejector pin is matched and positioned with the positioning hole; further, the top of the positioning elastic ejector pin is provided with a detachable and replaceable positioning end head, and the positioning end head and the upper end of the positioning elastic ejector pin are fixed through a threaded structure.

[0027] The waste area outside the trimming symbol of the outer plate is punched, and an automatic positioning device is arranged outside the trimming symbol by using the hole position. The automatic positioning device positions the hole position of the waste area through the elastic ejector pin, so as to ensure the stability of the outer plate on the trimming die. When the upper die pressing core and the cutter block of the die move downward, the die pressing core 5 presses the plate, and the die trimming cutter block 6 starts trimming and touches the ejector pin of the positioning device. The ejector pin can be retracted into the positioning seat without affecting the work of the die.

[0028] The automatic positioning device for trimming of the outer plate of the covering part has reasonable structure design, and is arranged outside the waste area of the trimming symbol of the outer plate. The automatic positioning device positions the hole position of the waste area through the elastic ejector pin, so as to ensure the stability of the outer plate on the trimming die.

[0029] The above is only the preferred embodiment of the utility model, and the above technical features can be combined to form multiple embodiment schemes of the utility model.

[0030] The utility model is exemplarily described above in combination with the drawings, and apparently, the specific implementation of the utility model is not limited by the above mode. As long as various non-essential improvements are made by using the concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, all falls within the protection scope of the utility model.

Claims

1. An automatic positioning device for trimming the outer panel of a cover part, wherein the positioning device is disposed on the lower mold of a mold, characterized in that: The positioning device includes a fixed base and a positioning spring pin disposed on the fixed base. The lower part of the positioning spring pin is provided with an elastic structure, and the positioning spring pin is set in the waste area of ​​the outer plate trimming.

2. The automatic positioning device for trimming the outer panel of the cover as described in claim 1, characterized in that: The lower mold has a groove on one side, and the fixing seat is fixed in the groove by fasteners.

3. The automatic positioning device for trimming the outer panel of the cover as described in claim 1, characterized in that: The mounting base has a hollow structure.

4. The automatic positioning device for trimming the outer panel of the cover as described in claim 2, characterized in that: The groove is an L-shaped open groove.

5. The automatic positioning device for trimming the outer panel of the cover as described in claim 3, characterized in that: The elastic structure is located inside the fixed base and is positioned at the lower end of the positioning spring pin.

6. The automatic positioning device for trimming the outer panel of the cover as described in claim 5, characterized in that: The bottom of the mounting base is provided with an adjustable stopper.

7. The automatic positioning device for trimming the outer panel of the cover as described in claim 5, characterized in that: The outer plate has a positioning hole at the edge of the waste area, and the top of the positioning spring pin is matched with the positioning hole for positioning.

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