Automobile metal plate thermal forming die convenient to position
By designing an automotive sheet metal thermoforming mold with an oil storage component and an oil coating component, the wear problem caused by uneven lubrication in existing molds was solved, automated lubrication was achieved, positioning accuracy and production efficiency were improved, and costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-17
AI Technical Summary
Existing thermoforming molds lack effective lubrication during frequent mold opening and closing, which leads to increased wear on positioning components, affecting positioning accuracy and production efficiency. Furthermore, existing lubrication methods are labor-intensive, costly, or unreliable.
An easy-to-position automotive sheet metal thermoforming mold was designed, comprising an oil storage component and an oil coating component. Through structures such as an oil tank, oil supply pipe, distribution pipe, and oil coating sponge, automated lubrication and uniform application of lubricating oil are achieved, ensuring lubrication of the positioning pin and positioning cylinder.
It enables automated and uniform application of lubricating oil, reduces wear on positioning components, improves positioning accuracy and production efficiency, and reduces labor costs and equipment complexity.
Smart Images
Figure CN223997033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a thermoforming mold for automotive sheet metal parts that is easy to position. Background Technology
[0002] With the booming development of the global automotive industry, consumers have increasingly higher requirements for the performance, safety and appearance design of automobiles. As a key component of the car body, the quality and forming precision of automotive sheet metal directly affect the quality of the whole vehicle. In order to meet increasingly stringent regulatory standards (such as collision safety regulations requiring higher strength of the body structure) and the market's pursuit of lightweight design, advanced materials such as high-strength steel and ultra-high-strength steel are being used more and more widely in automotive sheet metal manufacturing.
[0003] During the frequent opening and closing of existing thermoforming molds, a large amount of friction is generated between positioning components (such as guide pillars and guide sleeves). Without effective lubrication measures, not only will the opening and closing resistance of the mold be increased and the production efficiency reduced, but the wear of the positioning components will also be accelerated. The increased gap of the positioning structure after wear will in turn affect the positioning accuracy, forming a vicious cycle.
[0004] Currently, the lubrication of the positioning part is done manually by applying lubricating oil periodically. This method is not only labor-intensive and time-consuming, but also difficult to guarantee the uniformity and timeliness of each application. Some automated lubrication systems are complex in structure and expensive, and their reliability is poor in the high-temperature and high-pressure working environment of the mold. They are prone to malfunctions such as blockage and oil leakage, and are difficult to maintain. Therefore, this utility model provides a thermoforming mold for automotive sheet metal parts that is easy to position. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides a thermoforming mold for automotive sheet metal parts that is easy to position.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a thermoforming mold for automotive sheet metal parts that is easy to position, comprising a lower template and an upper stamping plate, wherein a positioning post is fixedly connected to the surface of the lower template, the upper stamping plate is located above the lower template, and a positioning cylinder is fixedly connected to the surface of the upper stamping plate, the inner wall of the positioning cylinder is slidably connected to the surface of the positioning post, and an oiling component is provided at the lower end of the positioning cylinder, and an oil storage component is provided on the lower surface of the upper stamping plate;
[0009] The oil storage assembly includes a mounting plate, which is fixedly connected to the lower surface of the upper stamping plate, and an oil storage tank is fixedly connected to the surface of the mounting plate. An oil delivery pipe is fixedly connected to the lower end of the oil storage tank, and an adjusting plug is provided on the surface of the oil delivery pipe. A diversion pipe is fixedly connected to the lower end of the oil delivery pipe.
[0010] The oiling assembly includes an oiling cylinder, the top of which is fixedly connected to the lower surface of the positioning cylinder, and an oiling sponge is provided inside the oiling cylinder, which is fixedly connected to the inner wall of the oiling cylinder.
[0011] As a preferred embodiment of the automotive sheet metal thermoforming mold for easy positioning described in this utility model, the surface of the oil tank is provided with a capacity window, and the lower end of the oil tank is provided with an oil inlet.
[0012] As a preferred embodiment of the automotive sheet metal thermoforming mold for easy positioning described in this utility model, the oiling cylinder has an oil storage cavity inside, and the surface of the oil storage cavity has oil seepage holes.
[0013] As a preferred embodiment of the automotive sheet metal thermoforming mold for easy positioning described in this utility model, a switch assembly is provided at one end of the diversion pipe. The switch assembly includes an adjusting pipe, one end of which is fixedly connected to the diversion pipe, and the other end of which is connected to the interior of the oiling cylinder. An adjusting cavity is provided inside the adjusting pipe, and a piston is slidably connected to the inner wall of the adjusting cavity. A flow hole is provided on the surface of the piston, and a sliding rod is fixedly connected to the lower end of the piston. The lower end of the sliding rod passes through the lower surface of the adjusting pipe and is fixedly connected to a push plate.
[0014] As a preferred embodiment of the automotive sheet metal thermoforming mold for easy positioning described in this utility model, the push plate is sleeved on the surface of the positioning post, and a return spring is fixedly connected to the surface of the push plate, the top of the return spring being fixedly connected to the lower surface of the oiling cylinder.
[0015] As a preferred embodiment of the automotive sheet metal thermoforming mold for easy positioning described in this utility model, a buffer spring is provided below the push plate, the buffer spring is sleeved on the surface of the positioning post, and the lower end of the buffer spring is fixedly connected to the surface of the lower template.
[0016] (III) Beneficial Effects
[0017] This utility model provides a thermoforming mold for automotive sheet metal parts that facilitates positioning. It has the following beneficial effects:
[0018] 1. Lubricating oil is injected into the oil reservoir through the oil inlet. The capacity window on the surface of the oil reservoir allows the operator to easily observe the oil level at any time. By turning the adjusting plug, the flow rate of the lubricating oil can be adjusted so that the lubricating oil can flow into the oil storage chamber of the oiling cylinder through the diversion pipe. Through the oil seepage holes on the surface of the oil storage chamber, the oiling sponge is replenished with lubricating oil. During mold closing or opening, the surface of the positioning pin can be coated with lubricating oil through the oiling sponge to prevent the positioning pin and positioning cylinder from sliding poorly due to lack of lubricating oil, which could cause the upper stamping plate and the lower template to shift during mold closing.
[0019] 2. The positioning sleeve drives the oiling cylinder and the push plate to move downwards. When the push plate and the buffer spring press against each other, the buffer spring will drive the sliding rod to move upwards through the push plate. At the same time, the push plate will press the return spring. When the sliding rod moves upwards, it will drive the piston rod to move in the adjustment chamber, so that the flow hole on the surface of the piston rod is connected to the diversion pipe. This allows the lubricating oil in the diversion pipe to flow into the oiling cylinder through the adjustment pipe, replenishing the lubricating sponge with lubricating oil. After the stamping is completed, the positioning sleeve drives the push plate to move upwards, so that the push plate no longer presses against the return spring. The return spring restores its elastic deformation, so that the sliding rod drives the piston rod to return to its original position, thereby achieving the effect of intermittently replenishing the lubricating oil in the oiling cylinder. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the oil storage component in this utility model;
[0023] Figure 3 This is a schematic diagram of the oiling component in this utility model;
[0024] Figure 4 This is a schematic diagram of the switch assembly in this utility model.
[0025] In the diagram: 1. Lower template; 2. Upper stamping plate; 3. Positioning post; 4. Positioning cylinder; 5. Oil storage assembly; 501. Mounting plate; 502. Oil tank; 503. Capacity window; 504. Oil inlet; 505. Oil delivery pipe; 506. Adjusting plug; 507. Diverter pipe; 6. Switch assembly; 601. Adjusting pipe; 602. Adjusting cavity; 603. Piston post; 604. Flow hole; 605. Sliding rod; 606. Push plate; 607. Return spring; 7. Oiling assembly; 701. Oiling cylinder; 702. Oil storage cavity; 703. Oil seepage hole; 704. Oiling sponge; 8. Buffer spring. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0027] Example 1
[0028] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present invention. This embodiment provides a thermoforming mold for automotive sheet metal parts that is easy to position, including a lower template 1 and an upper stamping plate 2. A positioning post 3 is fixedly connected to the surface of the lower template 1. The upper stamping plate 2 is located above the lower template 1, and a positioning cylinder 4 is fixedly connected to the surface of the upper stamping plate 2. The inner wall of the positioning cylinder 4 is slidably connected to the surface of the positioning post 3. An oiling component 7 is provided at the lower end of the positioning cylinder 4, and an oil storage component 5 is provided on the lower surface of the upper stamping plate 2.
[0029] The oil storage assembly 5 includes a mounting plate 501, which is fixedly connected to the lower surface of the upper stamping plate 2. An oil storage tank 502 is fixedly connected to the surface of the mounting plate 501. An oil delivery pipe 505 is fixedly connected to the lower end of the oil storage tank 502. An adjusting bolt 506 is provided on the surface of the oil delivery pipe 505. A diversion pipe 507 is fixedly connected to the lower end of the oil delivery pipe 505.
[0030] The oiling assembly 7 includes an oiling cylinder 701, the top of which is fixedly connected to the lower surface of the positioning cylinder 4, and an oiling sponge 704 is provided inside the oiling cylinder 701, which is fixedly connected to the inner wall of the oiling cylinder 701.
[0031] Specifically, the surface of the oil tank 502 is provided with a capacity window 503, the lower end of the oil tank 502 is provided with an oil inlet 504, the inside of the oiling cylinder 701 is provided with an oil storage cavity 702, and the surface of the oil storage cavity 702 is provided with an oil seepage hole 703.
[0032] Furthermore, when it is necessary to apply lubricating oil to the surface of the positioning post 3, lubricating oil is first injected into the oil storage tank 502 through the oil inlet 504. The capacity window 503 on the surface of the oil storage tank allows the operator to easily observe the amount of oil in the oil storage tank 502 at any time. By turning the adjusting bolt 506, the flow rate of the lubricating oil is adjusted so that the lubricating oil can flow into the oil storage cavity 702 of the oiling cylinder 701 through the diversion pipe 507. Through the oil seepage hole 703 on the surface of the oil storage cavity 702, the oiling sponge 704 is replenished with lubricating oil. During the mold closing or opening process, the surface of the positioning post 3 can be lubricated by applying lubricating oil through the oiling sponge 704 to prevent the positioning post 3 and the positioning cylinder 4 from sliding poorly due to lack of lubricating oil, which could cause the upper stamping plate 2 and the lower template 1 to shift during the mold closing process.
[0033] Example 2
[0034] Reference Figure 1 , Figure 2 and Figure 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. One end of the diversion pipe 507 is provided with a switch assembly 6. The switch assembly 6 includes an adjustment pipe 601. One end of the adjustment pipe 601 is fixedly connected to the diversion pipe 507, and the other end of the adjustment pipe 601 is connected to the interior of the oiling cylinder 701. An adjustment cavity 602 is opened inside the adjustment pipe 601. A piston column 603 is slidably connected to the inner wall of the adjustment cavity 602. A flow hole 604 is opened on the surface of the piston column 603, and a sliding rod 605 is fixedly connected to the lower end of the piston column 603. The lower end of the sliding rod 605 penetrates the lower surface of the adjustment pipe 601 and is fixedly connected to a push plate 606.
[0035] Specifically, the push plate 606 is sleeved on the surface of the positioning post 3, and a return spring 607 is fixedly connected to the surface of the push plate 606. The top of the return spring 607 is fixedly connected to the lower surface of the oiling cylinder 701. A buffer spring 8 is provided below the push plate 606. The buffer spring 8 is sleeved on the surface of the positioning post 3, and the lower end of the buffer spring 8 is fixedly connected to the surface of the lower template 1.
[0036] Furthermore, when the upper stamping plate 2 stamps the sheet metal part in the lower template 1, the positioning sleeve will drive the oiling cylinder 701 and the push plate 606 to move downward. When the push plate 606 and the buffer spring 8 press against each other, the buffer spring 8 will drive the sliding rod 605 to move upward through the push plate 606. At the same time, the push plate 606 will press the return spring 607. When the sliding rod 605 moves upward, it will drive the piston column 603 to move in the adjustment cavity 602, so that the flow hole 604 opened on the surface of the piston column 603 and the diversion hole are connected. The pipes 507 are connected, so that the lubricating oil in the diversion pipe 507 can flow into the oiling cylinder 701 through the regulating pipe 601 to replenish the lubricating sponge 704. After the stamping is completed, the positioning cylinder 4 drives the push plate 606 to move upward, so that the push plate 606 no longer squeezes against the return spring 607. The return spring 607 restores its elastic deformation, so that the sliding rod 605 drives the piston column 603 to return to its original position, thereby achieving the effect of intermittently replenishing the lubricating oil in the oiling cylinder 701.
[0037] Working Principle: In use, lubricating oil is first injected into the oil reservoir 502 through the oil inlet 504. The capacity window 503 on the surface of the reservoir allows the operator to easily observe the oil level. The flow rate of the lubricating oil is adjusted by turning the adjusting bolt 506, allowing it to flow into the distribution pipe 507. When the upper stamping plate 2 stamps the sheet metal part in the lower template 1, the positioning sleeve moves the oiling cylinder 701 and the push plate 606 downwards. When the push plate 606 and the buffer spring 8 press against each other, the buffer spring 8 moves the sliding rod 605 upwards via the push plate 606. Simultaneously, the push plate 606 presses the return spring 607. The upward movement of the sliding rod 605 moves the piston rod 603 within the adjusting cavity 602, connecting the flow hole 604 on the surface of the piston rod 603 with the distribution pipe 507, thus allowing the lubricating oil in the distribution pipe 507 to flow freely. The lubricating oil flows into the oiling cylinder 701 through the regulating pipe 601 to replenish the lubricating sponge 704. After the stamping is completed, the positioning cylinder 4 drives the push plate 606 to move upward, so that the push plate 606 no longer squeezes against the return spring 607. The return spring 607 restores its elastic deformation, thereby causing the sliding rod 605 to drive the piston column 603 to return to its original position. This achieves the effect of intermittently replenishing the lubricating oil in the oil storage cavity 702 of the oiling cylinder 701. After the lubricating oil flows into the oil storage cavity 702 of the oiling cylinder 701, it replenishes the lubricating sponge 704 through the oil seepage holes 703 provided on the surface of the oil storage cavity 702. During the mold closing or opening process, the surface of the positioning column 3 can be coated with lubricating oil through the oiling sponge 704 to avoid the positioning column 3 and the positioning cylinder 4 from sliding poorly due to lack of lubricating oil, which would cause the upper stamping plate 2 and the lower template 1 to shift during the mold closing process.
[0038] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. An automotive panel hot forming die for facilitating positioning, comprising a lower die plate (1) and an upper punch plate (2), characterized in that: The surface of the lower die plate (1) is fixedly connected with a positioning column (3), the upper stamping plate (2) is located above the lower die plate (1), and the surface of the upper stamping plate (2) is fixedly connected with a positioning cylinder (4), the inner wall of the positioning cylinder (4) is in sliding connection with the surface of the positioning column (3), and the lower end of the positioning cylinder (4) is provided with an oiling assembly (7), and the lower surface of the upper stamping plate (2) is provided with an oil storage assembly (5). The oil storage assembly (5) comprises a mounting plate (501), the mounting plate (501) is fixedly connected with the lower surface of the upper stamping plate (2), and the surface of the mounting plate (501) is fixedly connected with an oil storage tank (502), the lower end of the oil storage tank (502) is fixedly connected with an oil delivery pipe (505), the surface of the oil delivery pipe (505) is provided with an adjusting plug (506), and the lower end of the oil delivery pipe (505) is fixedly connected with a shunt pipe (507). The oiling assembly (7) comprises an oiling cylinder (701), the top of the oiling cylinder (701) is fixedly connected with the lower surface of the positioning cylinder (4), and the inside of the oiling cylinder (701) is provided with an oiling sponge (704), and the oiling sponge (704) is fixedly connected with the inner wall of the oiling cylinder (701).
2. The hot-stamping die for an automotive panel of claim 1, wherein: The surface of the oil storage tank (502) is provided with a capacity window (503), and the lower end of the oil storage tank (502) is provided with an oil inlet (504).
3. The hot-stamping die for an automotive panel of claim 1, wherein: The inside of the oiling cylinder (701) is provided with an oil storage cavity (702), and the surface of the oil storage cavity (702) is provided with an oil permeation hole (703).
4. The hot-stamping die for an automotive panel of claim 1, wherein: One end of the shunt pipe (507) is provided with a switch assembly (6), the switch assembly (6) comprises an adjusting pipe (601), one end of the adjusting pipe (601) is fixedly connected with the shunt pipe (507), the other end of the adjusting pipe (601) is in communication with the inside of the oiling cylinder (701), the inside of the adjusting pipe (601) is provided with an adjusting cavity (602), the inner wall of the adjusting cavity (602) is in sliding connection with a piston column (603), the surface of the piston column (603) is provided with a flow hole (604), the lower end of the piston column (603) is fixedly connected with a sliding rod (605), and the lower end of the sliding rod (605) penetrates through the lower surface of the adjusting pipe (601) and is fixedly connected with a push plate (606).
5. A hot forming die for an automotive panel as defined in claim 4, wherein: The push plate (606) is sleeved on the surface of the positioning column (3), and the surface of the push plate (606) is fixedly connected with a return spring (607), the top of the return spring (607) is fixedly connected with the lower surface of the oiling cylinder (701).
6. A hot forming die for an automotive panel as defined in claim 4, wherein: The lower surface of the push plate (606) is provided with a buffer spring (8), the buffer spring (8) is sleeved on the surface of the positioning column (3), and the lower end of the buffer spring (8) is fixedly connected with the surface of the lower die plate (1).