Side drawing die for covering part

By setting oil injection holes and solenoid valves in the stretching mold of automotive body panels, automatic lubrication is achieved, which solves the problems of mold wear and machining accuracy and reduces production costs.

CN224087772UActive Publication Date: 2026-04-07CHONGQING CHIHENG MOLD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing automotive body panel side stretching dies have complex structures and limited functions, leading to wear on the die surface, affecting processing accuracy and increasing production costs. They are also difficult to lubricate effectively, resulting in material damage.

Method used

A side stretching die for a cover part was designed. By setting oil spray holes and solenoid valves on the upper and lower die bases respectively, the oil supply mechanism controls the spraying of lubricating oil on the bottom and top of the material to avoid contact and friction between the die and the material. The lifting and lowering of the die is controlled by a hydraulic cylinder or a pneumatic cylinder to achieve automatic lubrication.

Benefits of technology

It effectively avoids friction and scratches between the mold and the material, improves processing accuracy, reduces production costs, and ensures the lubrication effect of the material.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224087772U_ABST
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Abstract

The utility model discloses a covering part side drawing die which comprises a lower die base, an upper die base and an oil supply mechanism, a lower oil spraying hole is formed in the top of the lower die base, a first electromagnetic valve communicated with the lower oil spraying hole is arranged on the side wall of the lower die base, an upper oil spraying hole is formed in the bottom of the upper die base, and a second electromagnetic valve communicated with the upper oil spraying hole is arranged on the side wall of the upper die base. A first electromagnetic valve communicated with the upper oil hole is arranged on the side wall of the upper die base, a second electromagnetic valve communicated with the upper oil hole is arranged on the side wall of the upper die base, the oil supply mechanism comprises an oil barrel, an oil pump communicated with the oil barrel and an oil supply pipeline communicated with the oil pump, and the oil supply pipeline is respectively communicated with the first electromagnetic valve and the second electromagnetic valve. The lower oil spraying button controls the oil pump and the first electromagnetic valve to be opened, the lubricating oil is sprayed to the bottom of the automobile covering part material from the lower spraying hole to keep the bottom of the automobile covering part material lubricated, the lubricating oil is sprayed to the top of the automobile covering part material from the upper spraying hole to keep the top of the automobile covering part material lubricated, and friction scratching of the bottom and the top is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle engineering technical field, concretely is a kind of covering piece side stretch die. BACKGROUND

[0002] Automobile covering piece refers to the surface or internal part of the space shape made of metal sheet covering engine, chassis, constitutes cab, vehicle body, according to function and position can be divided into three categories of external covering piece, internal covering piece and framework covering piece, the manufacture of automobile external covering piece generally needs 3 to 5 processes, and the first process is to stretch the plate material into shape, if the first process has defect, the remaining several processes cannot be processed, workpiece is scrapped, waste material.

[0003] At present, the existing automobile covering piece side stretch die structure is complex, and the function is single, due to extrusion and friction between the covering piece, the die surface will be worn, affect the machining precision, increase production cost, it is inconvenient to add lubricating oil to the die. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model in order to avoid obscuring the purpose of this section, the abstract of the specification and the title of the utility model. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the use of covering piece side stretch die, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a kind of covering piece side stretch die, trigger lower oil injection button when upper die seat drops, lower oil injection button controls oil pump and first solenoid valve to open, lubricating oil is sprayed to the bottom of automobile covering piece material from lower oil injection hole, keep the bottom of automobile covering piece material lubrication, avoid bottom and lower die seat contact friction scratch, install oil cylinder or air cylinder to control lifting by mounting seat, during the process of descending, pressing plate triggers upper oil injection button, upper oil injection button controls oil pump and second solenoid valve to open, lubricating oil is sprayed to the top of automobile covering piece material from upper oil injection hole, keep the top of automobile covering piece material lubrication, avoid top and upper die seat contact friction scratch.

[0007] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0008] A kind of covering piece side stretch die, it includes:

[0009] Lower die seat, the top of the lower die seat is provided with lower oil injection hole, the side wall of the lower die seat is provided with first solenoid valve communicated with lower oil injection hole;

[0010] The bottom of the upper die seat is provided with an upper oil injection hole, and the sidewall of the upper die seat is provided with a second electromagnetic valve communicated with the upper oil injection hole;

[0011] The oil supply mechanism comprises an oil tank, an oil pump communicated with the oil tank, and an oil feeding pipeline communicated with the oil pump, and the oil feeding pipeline is communicated with the first electromagnetic valve and the second electromagnetic valve respectively.

[0012] As a preferred scheme of the side stretching die for the covering part, the automobile covering part material is placed between the upper die seat and the lower die seat, and the top of the upper die seat is provided with a mounting seat.

[0013] As a preferred scheme of the side stretching die for the covering part, the top of the lower die seat is provided with a movable hole, and the inside of the movable hole is provided with a supporting column.

[0014] As a preferred scheme of the side stretching die for the covering part, the bottom of the supporting column is provided with a reset spring, and the bottom of the reset spring is fixedly connected with the bottom of the movable hole.

[0015] As a preferred scheme of the side stretching die for the covering part, the sidewall of the lower die seat is provided with a guide rod, and the sidewall of the upper die seat is provided with a guide hole matched with the guide rod.

[0016] As a preferred scheme of the side stretching die for the covering part, the sidewall of the lower die seat is provided with a movable hole, and the inside of the movable hole is provided with a lower oil injection button, and the lower oil injection button is electrically connected with the first electromagnetic valve.

[0017] As a preferred scheme of the side stretching die for the covering part, the sidewall of the lower die seat is provided with an upper oil injection button, the sidewall of the upper die seat is provided with a pressing plate matched with the upper oil injection button, and the upper oil injection button is electrically connected with the second electromagnetic valve.

[0018] Compared with the prior art, the side stretching die for the covering part has the beneficial effects that when the upper die seat descends, the lower oil injection button is triggered, the oil pump and the first electromagnetic valve are controlled to be opened by the lower oil injection button, lubricating oil is sprayed from the lower oil injection hole to the bottom of the automobile covering part material, the bottom of the automobile covering part material is kept lubricated, and the bottom is prevented from being scratched by contact and friction with the lower die seat, the oil cylinder or the air cylinder is controlled to ascend and descend through the mounting seat, in the descending process, the pressing plate triggers the upper oil injection button, the oil pump and the second electromagnetic valve are controlled to be opened by the upper oil injection button, lubricating oil is sprayed from the upper oil injection hole to the top of the automobile covering part material, the top of the automobile covering part material is kept lubricated, and the top is prevented from being scratched by contact and friction with the upper die seat. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme of the embodiments of the present application more clear, the present application will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings. Among them:

[0020] Fig. 1 It is a whole structure schematic diagram of the side stretching die of the covering piece of the present application;

[0021] Fig. 2 It is a lower die seat structure schematic diagram of the side stretching die of the covering piece of the present application;

[0022] Fig. 3 It is an upper die seat part structure schematic diagram of the side stretching die of the covering piece of the present application.

[0023] 100, lower die seat; 101, automobile covering piece material; 110, guide rod; 120, lower oil injection hole; 130, upper oil injection button; 140, first electromagnetic valve; 150, movable hole; 151, support column; 160, lower oil injection button; 200, upper die seat; 210, guide hole; 220, upper oil injection hole; 230, pressing plate; 240, second electromagnetic valve; 300, oil supply mechanism; 310, oil tank; 320, oil pump; 330, oil delivery pipe. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0025] Secondly, the present application is described in detail in combination with the schematic diagram. In order to facilitate the description, the sectional view of the device structure will be partially enlarged without the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0026] In order to make the purposes, technical schemes and advantages of the present application more clear, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0027] The utility model provides a kind of covering piece side stretch die, trigger lower oil injection button when upper die holder drops, lower oil injection button controls oil pump and first solenoid valve to open, lubricating oil is sprayed from lower oil injection hole to the bottom of automobile covering piece material, keep the bottom of automobile covering piece material lubrication, avoid bottom and lower die holder contact friction scratch, oil cylinder or air cylinder control lifting is installed by mounting seat, during descending process, pressing plate triggers upper oil injection button, upper oil injection button controls oil pump and second solenoid valve to open, lubricating oil is sprayed from upper oil injection hole to the top of automobile covering piece material, keep the top of automobile covering piece material lubrication, avoid top and upper die holder contact friction scratch.

[0028] Figs. 1-3 It is shown that the structure schematic diagram of one embodiment of the utility model a kind of covering piece side stretch die, please refer to Figs. 1-3 The utility model provides a kind of covering piece side stretch die, trigger lower oil injection button when upper die holder drops, lower oil injection button controls oil pump and first solenoid valve to open, lubricating oil is sprayed from lower oil injection hole to the bottom of automobile covering piece material, keep the bottom of automobile covering piece material lubrication, avoid bottom and lower die holder contact friction scratch, oil cylinder or air cylinder control lifting is installed by mounting seat, during descending process, pressing plate triggers upper oil injection button, upper oil injection button controls oil pump and second solenoid valve to open, lubricating oil is sprayed from upper oil injection hole to the top of automobile covering piece material, keep the top of automobile covering piece material lubrication, avoid top and upper die holder contact friction scratch.

[0029] Lower oil injection hole 120 is arranged on the top of lower die holder 100, and first solenoid valve 140 is arranged on the side wall of lower die holder 100 and communicated with lower oil injection hole 120, in the embodiment, movable hole 150 is arranged on the top of lower die holder 100, support column 151 is arranged in movable hole 150, reset spring is arranged on the bottom of support column 151, and the bottom of reset spring is fixedly connected with the bottom of movable hole 150, guide rod 110 is arranged on the side wall of lower die holder 100, movable hole 150 is arranged on the side wall of lower die holder 100, lower oil injection button 160 is arranged in movable hole 150, lower oil injection button 160 is electrically connected with first solenoid valve 140, and upper oil injection button 130 is arranged on the side wall of lower die holder 100.

[0030] The upper die seat 200 is installed on the oil cylinder or the air cylinder through the mounting seat to control the lifting, and in the descending process, the pressing plate 230 triggers the upper oil injection button 130, the upper oil injection button 130 controls the oil pump 320 and the second electromagnetic valve 240 to open, lubricating oil is sprayed from the upper oil injection hole to the top of the automobile covering material 101, the top of the automobile covering material 101 is kept lubricated, and the top is prevented from being scratched by the contact friction with the upper die seat 200, specifically, the bottom of the upper die seat 200 is provided with an upper oil injection hole 220, the sidewall of the upper die seat 200 is provided with a second electromagnetic valve 240 in communication with the upper oil hole, in the embodiment, the automobile covering material 101 is placed between the upper die seat 200 and the lower die seat 100, the top of the upper die seat 200 is provided with a mounting seat, the sidewall of the upper die seat 200 is provided with a guide hole 210 matched with the guide rod 110, the sidewall of the upper die seat 200 is provided with a pressing plate 230 matched with the upper oil injection button 130, and the upper oil injection button 130 is electrically connected with the second electromagnetic valve 240.

[0031] The oil supply mechanism 300 stores lubricating oil in the oil tank 310, and the oil pump 320 passes the lubricating oil into the oil supply pipe 330, specifically, the oil supply mechanism 300 comprises the oil tank 310, the oil pump 320 in communication with the oil tank 310 and the oil supply pipe 330 in communication with the oil pump 320, and the oil supply pipe 330 is in communication with the first electromagnetic valve 140 and the second electromagnetic valve 240 respectively.

[0032] In combination Figs. 1-3 , the automobile covering material 101 is placed between the upper die seat 200 and the lower die seat 100, the top of the upper die seat 200 is provided with a mounting seat, the sidewall of the upper die seat 200 is provided with a guide hole 210 matched with the guide rod 110, the sidewall of the upper die seat 200 is provided with a pressing plate 230 matched with the upper oil injection button 130, and the upper oil injection button 130 is electrically connected with the second electromagnetic valve 240.

[0033] Although the utility model has been described above with reference to the embodiments, various modifications can be made thereto, and equivalent replacements can be made to the components thereof, without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any manner, and the combinations are not exhaustively described in the specification merely for the purpose of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A side stretching die for a cover part, characterized in that, include: The lower mold base (100) is provided with a lower oil spray hole (120) on its top and a first solenoid valve (140) communicating with the lower oil spray hole (120) on its side wall. The upper mold base (200) is provided with an upper oil spray hole (220) at its bottom and a second solenoid valve (240) communicating with the upper oil spray hole is provided on the side wall of the upper mold base (200). The oil supply mechanism (300) includes an oil tank (310), an oil pump (320) connected to the oil tank (310), and an oil delivery pipe (330) connected to the oil pump (320). The oil delivery pipe (330) is connected to a first solenoid valve (140) and a second solenoid valve (240) respectively.

2. The side stretching die for a cover part according to claim 1, characterized in that, An automotive body panel material (101) is placed between the upper mold base (200) and the lower mold base (100), and a mounting seat is provided on the top of the upper mold base (200).

3. The side stretching die for a cover part according to claim 2, characterized in that, The lower mold base (100) is provided with a movable hole (150) at its top, and a support column (151) is provided inside the movable hole (150).

4. The side stretching die for a cover part according to claim 3, characterized in that, A reset spring is provided at the bottom of the support column (151), and the bottom of the reset spring is fixedly connected to the bottom of the movable hole (150).

5. A side stretching die for a cover part according to claim 4, characterized in that, The lower mold base (100) is provided with a guide rod (110) on its side wall, and the upper mold base (200) is provided with a guide hole (210) that cooperates with the guide rod (110) on its side wall.

6. The side stretching die for a cover part according to claim 5, characterized in that, The lower mold base (100) has a movable hole (150) on its side wall. A lower oil spray button (160) is provided inside the movable hole (150). The lower oil spray button (160) is electrically connected to the first solenoid valve (140).

7. A side stretching die for a cover part according to claim 6, characterized in that, The lower mold base (100) is provided with an upper oil spray button (130) on its side wall, and the upper mold base (200) is provided with a pressure plate (230) that cooperates with the upper oil spray button (130) on its side wall. The upper oil spray button (130) is electrically connected to the second solenoid valve (240).

Citation Information

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