Demoulding structure of automobile body mould

Abstract

The utility model discloses an automobile body mold demolding structure which comprises a base, a lower mold is fixedly connected to the top of the base, supporting columns are fixedly connected to the four corners of the top of the base, the same supporting plate is fixedly connected to the tops of the four supporting columns, and a hydraulic cylinder is fixedly connected to the top of the supporting plate. Through the cooperation of the base, the lower die, the supporting column, the hydraulic cylinder, the sliding plate and the upper die, stamping operation can be conducted on an automobile body stamping part, then through the cooperation of the lifting groove, the ejection column, the push plate, the lifting plate and the pulling plate, after the upper die ascends to a certain height during die opening, the pulling plate can be used for pulling the lifting plate to synchronously move upwards, and the stamping operation is completed. And then the ejection column can push the push plate to synchronously push out the automobile body stamping part, so that automatic demolding of the automobile body stamping part is achieved, energy can be saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of the demoulding structure of automobile body moulds, and specifically relates to a demoulding structure of an automobile body mould. Background Art

[0002] Stamping is a forming process that uses a press and a die to apply external forces to plates, strips, tubes, profiles, etc., causing plastic deformation or separation to obtain workpieces (stamped parts) with the required shapes and sizes. Stamping and forging belong to plastic processing and are collectively called forging and pressing. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and steel strips. Among the world's steel, 60-70% are plates, and most of them are made into finished products through stamping. The body, chassis, fuel tank, radiator fins of automobiles, the steam drum of boilers, the shells of containers, the silicon steel sheets of the cores of motors and electrical appliances, etc. are all processed by stamping. There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machinery, and daily utensils.

[0003] After retrieval, a stamping die that is convenient for demoulding, with the Chinese patent application number 202322787845.7, is disclosed. This patent relates to the technical field of stamping dies and specifically relates to a stamping die that is convenient for demoulding, including a bottom plate. The rear of the upper end surface of the bottom plate is fixedly connected with a back plate, and the upper end surface of the back plate is fixedly connected with a top plate. Vibration motors are arranged on both the left and right sides of the bottom of the lower die cavity. By starting the two vibration motors to vibrate, the vibration force is transmitted to the internal workpiece through the bottom of the lower die cavity, causing the workpiece to be preliminarily separated from the lower die cavity. Subsequently, start the two telescopic rods to drive the side plates and the lower die cavity to move upward, facilitating the rotation of the lower die cavity. Further, the lower die cavity is rotated around the rotating shaft so that the opening of the lower die cavity faces downward, thus successfully pouring out the formed workpiece. If the workpiece fails to be successfully removed, start the cylinder to drive the top block to extend into the lower die cavity to achieve the purpose of ejecting the workpiece and realizing demoulding. This patent has a simple structure, convenient operation, diverse demoulding methods, ensures the smooth demoulding of the workpiece, and improves work efficiency.

[0004] Although the above patent has a simple structure, convenient operation, diverse demoulding methods, ensures the smooth demoulding of the workpiece, and improves work efficiency, in actual use, this patent uses vibration motors, telescopic rods, cylinders, etc. to push out components. Since this patent uses a relatively large number of electrical appliances for demoulding operations, it wastes a relatively large amount of energy during use, and the usage cost also increases accordingly.

[0005] Therefore, it is necessary to modify the stamping die in the above patent to effectively prevent the problem that a relatively large number of electrical appliances are used for demoulding operations, resulting in a relatively large amount of energy waste during use and an increase in usage cost. Content of the Utility Model

[0006] To solve the problems raised in the above-mentioned background art, the purpose of the present utility model is to provide a demoulding structure for an automobile body mold, which has the advantages of being able to automatically demould, saving energy use, and reducing production costs.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A demoulding structure for an automobile body mold, including a base, a lower mold is fixedly connected to the top of the base, support columns are fixedly connected to the four corners of the top of the base, the same support plate is fixedly connected to the tops of the four support columns, a hydraulic cylinder is fixedly connected to the top of the support plate, the output end of the hydraulic cylinder penetrates through the support plate and is fixedly connected to a sliding plate, pulling ports are symmetrically opened on both sides of the sliding plate, an upper mold is fixedly connected to the bottom of the sliding plate, a lifting groove is opened at the bottom of the lower mold, four ejector holes are opened at the top of the lifting groove, and the four ejector holes are symmetrically arranged in two groups of two, ejector columns are slidably connected inside the four ejector holes, the same push plate and the same lifting plate are fixedly connected to the tops and bottoms of the four ejector columns respectively, and the surface of the push plate is slidably connected to the inner wall of the lower mold, the same pull plates are symmetrically fixedly connected to both sides of the lifting plate, and the pull plates are used in cooperation with the pulling ports.

[0008] As a preferred embodiment of the present utility model, installation grooves are symmetrically opened at the top of the base, and the installation grooves are located below the lifting groove, a hollow column is fixedly connected inside the installation groove, a guiding column is slidably connected inside the hollow column, guiding grooves are symmetrically opened at the top of the lifting plate, and the guiding grooves are slidably connected to the guiding columns.

[0009] As a preferred embodiment of the present utility model, a clamping groove is opened at the top of the guiding groove, a clamping block is fixedly connected to the top of the guiding column, and the clamping block is clamped with the clamping groove.

[0010] As a preferred embodiment of the present utility model, a limiting ring is fixedly connected to the bottom of the guiding column, a return spring is sleeved on the surface of the guiding column, and the return spring is located above the limiting ring and is used in cooperation with the hollow column.

[0011] As a preferred embodiment of the present utility model, sliding ports are opened at the four corners of the sliding plate, and the sliding ports are slidably connected to the support columns, a buffer spring is sleeved on the surface of the support column, and the buffer spring is located between the base and the sliding plate.

[0012] As a preferred embodiment of the present utility model, the shape of the pull plate is T-shaped, and the top of the pull plate extends above the pulling port and is slidably connected to it.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the base, lower die, support columns, hydraulic cylinders, slide plates and upper die, the utility model can perform stamping operations on automotive body stampings. Then, through the cooperation of the lifting slots, ejector columns, push plates, lifting plates and pulling plates, when the upper die opens and rises to a certain height, the pulling plate can be used to pull the lifting plate to move upward synchronously, and then the ejector columns can push the push plates to synchronously eject the automotive body stampings, thus realizing automatic demoulding of the automotive body stampings and saving energy use and reducing production costs.

[0015] 2. Through the settings of the installation slots, hollow columns, guide columns and guide slots, the utility model can perform linear lifting movements vertically, and thus can ensure the stability of the lifting plate during lifting. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a partial sectional three-dimensional schematic structural diagram of the utility model;

[0018] Figure 3 is a three-dimensional schematic diagram of the cooperation of the push plate, lifting plate and pulling plate of the utility model;

[0019] Figure 4 is a partial sectional three-dimensional schematic diagram of the hollow column of the utility model.

[0020] In the figure: 1. Base; 2. Lower die; 3. Support columns; 4. Hydraulic cylinders; 5. Slide plates; 6. Upper die; 7. Lifting slots; 8. Ejector columns; 9. Push plates; 10. Lifting plates; 11. Pulling plates; 12. Installation slots; 13. Hollow columns; 14. Guide columns; 15. Guide slots; 16. Clamping slots; 17. Clamping blocks; 18. Limiting rings; 19. Return springs; 20. Buffer springs. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0022] Such as Figures 1 to 4As shown in the figure, a demoulding structure for an automobile body mold provided by the utility model includes a base 1. A lower mold 2 is fixedly connected to the top of the base 1. Support columns 3 are fixedly connected to the four corners of the top of the base 1. The same support plate is fixedly connected to the tops of the four support columns 3. A hydraulic cylinder 4 is fixedly connected to the top of the support plate. The output end of the hydraulic cylinder 4 penetrates the support plate and is fixedly connected to a sliding plate 5. Pulling ports are symmetrically opened on both sides of the sliding plate 5. An upper mold 6 is fixedly connected to the bottom of the sliding plate 5. A lifting groove 7 is opened at the bottom of the lower mold 2. Four ejector holes are opened at the top of the lifting groove 7, and the four ejector holes are symmetrically arranged in two groups of two. Ejector columns 8 are slidably connected to the interiors of the four ejector holes. The same push plate 9 and the same lifting plate 10 are fixedly connected to the top and bottom of the four ejector columns 8 respectively. The surface of the push plate 9 is slidably connected to the inner wall of the lower mold 2. Pulling plates 11 are symmetrically fixedly connected to both sides of the lifting plate 10, and the pulling plates 11 are used in cooperation with the pulling ports.

[0023] Reference Figure 2 and Figure 4 , mounting grooves 12 are symmetrically opened at the top of the base 1, and the mounting grooves 12 are located below the lifting groove 7. A hollow column 13 is fixedly connected to the interior of the mounting groove 12. A guiding column 14 is slidably connected to the interior of the hollow column 13. Guiding grooves 15 are symmetrically opened at the top of the lifting plate 10, and the guiding grooves 15 are slidably connected to the guiding column 14.

[0024] As a technical optimization scheme of the utility model, through the settings of the mounting groove 12, the hollow column 13, the guiding column 14 and the guiding groove 15, it can perform a vertical linear lifting motion, and thus can ensure the stability of the lifting plate 10 during lifting.

[0025] Reference Figure 3 and Figure 4 , a clamping groove 16 is opened at the top of the guiding groove 15. A clamping block 17 is fixedly connected to the top of the guiding column 14, and the clamping block 17 is clamped with the clamping groove 16.

[0026] As a technical optimization scheme of the utility model, through the settings of the clamping groove 16 and the clamping block 17, the clamping block 17 can pull the lifting plate 10 to descend and guide its descending trajectory.

[0027] Reference Figure 4 , a limiting ring 18 is fixedly connected to the bottom of the guiding column 14. A return spring 19 is sleeved on the surface of the guiding column 14, and the return spring 19 is located above the limiting ring 18 and is used in cooperation with the hollow column 13.

[0028] As a technical optimization solution of the present utility model, through the setting of the limiting ring 18 and the return spring 19, a downward thrust can be given to the limiting ring 18, thereby being able to drive the guide post 14 to pull the clamping block 17 to move downward. At this time, the clamping block 17 abuts against the clamping groove 16, thereby being able to assist the lifting plate 10 to reset.

[0029] Reference Figure 1 and Figure 2 , sliding openings are provided at the four corners of the sliding plate 5, and the sliding openings are slidably connected to the support columns 3. A buffer spring 20 is sleeved on the surface of the support columns 3, and the buffer spring 20 is located between the base 1 and the sliding plate 5.

[0030] As a technical optimization solution of the present utility model, through the setting of the sliding openings and the buffer spring 20, a buffer can be given to the sliding plate 5 when it descends, thereby being able to extend its service life.

[0031] Reference Figure 3 , the shape of the pulling plate 11 is T-shaped, and the top of the pulling plate 11 extends above the pulling opening and is slidably connected thereto.

[0032] As a technical optimization solution of the present utility model, through the setting that the shape of the pulling plate 11 is T-shaped, it can be ensured that the pulling plate 11 can pull the lifting plate 10 to move upward, thereby making its operation more stable.

[0033] The working principle and usage process of the present utility model: When using this automotive body mold, first place the automotive body stamping part in the mold cavity of the lower mold 2, and then start the hydraulic cylinder 4 to drive the sliding plate 5 to slide downward along the support columns 3. At this time, the reaction force of the return spring 19 gives a downward force to the limiting ring 18, and further can drive the guide post 14 to move downward, thereby being able to make the clamping block 17 abut against the clamping groove 16 to drive the lifting plate 10 to descend. At this time, the ejector post 8 can be used to drive the push plate 9 to retract to the lowest position in the mold cavity of the lower mold 2 until it cannot move, and the pulling plate 11 descends with the lifting plate 10 until it cannot move. At this time, the lifting plate 10 descends in the pulling opening under the action of the hydraulic cylinder 4, and the upper mold 6 performs a stamping operation on the stamping part in the lower mold 2. When the stamping is completed, the hydraulic cylinder 4 can be started to move upward, and further can drive the upper mold 6 to separate from the mold cavity of the lower mold 2. As the sliding plate 5 rises to a certain height, it can abut against the upper part of the pulling plate 11, and further can push the pulling plate 11 to move upward, and further can drive the lifting plate 10 to move upward synchronously in the lifting groove 7, and the lifting plate 10 can push the push plate 9 to move upward through the ejector post 8, and further can push the stamped automotive body stamping part in the lower mold 2 upward, thereby being able to complete the automatic demolding effect, and further can save the use of energy and reduce production costs.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A demoulding structure for an automobile body mold, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the lower mold (2), the four corners of the top of the base (1) are fixedly connected to support columns (3), the tops of the four support columns (3) are fixedly connected to the same support plate, the top of the support plate is fixedly connected to a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) passes through the support plate and is fixedly connected to a slide plate (5), the two sides of the slide plate (5) are symmetrically provided with pulling openings, the bottom of the slide plate (5) is fixedly connected to the upper mold (6), and the bottom of the lower mold (2) is opened. A lifting groove (7) is provided, and four ejection holes are opened on the top of the lifting groove (7), and the four ejection holes are symmetrically arranged in groups of two. The insides of the four ejection holes are slidably connected with ejection columns (8), and the tops and bottoms of the four ejection columns (8) are respectively fixedly connected with the same push plate (9) and the same lifting plate (10), and the surface of the push plate (9) is slidably connected to the inner wall of the lower mold (2). Pull plates (11) are symmetrically fixedly connected on both sides of the lifting plate (10), and the pull plates (11) are used in conjunction with the pulling port.

2. The automobile body mold demoulding structure according to claim 1, characterized in that: The top of the base (1) is symmetrically provided with a mounting groove (12), and the mounting groove (12) is located below the lifting groove (7); a hollow column (13) is fixedly connected inside the mounting groove (12), and a guide column (14) is slidably connected inside the hollow column (13); the top of the lifting plate (10) is symmetrically provided with a guide groove (15), and the guide groove (15) is slidably connected to the guide column (14).

3. The automobile body mold demoulding structure according to claim 2, characterized in that: A clamping groove (16) is provided at the top of the guide groove (15), a clamping block (17) is fixedly connected to the top of the guide column (14), and the clamping block (17) is clamped with the clamping groove (16).

4. The automobile body mold demoulding structure according to claim 2, characterized in that: The bottom of the guide column (14) is fixedly connected to a limiting ring (18), and the surface of the guide column (14) is sleeved with a return spring (19), which is located above the limiting ring (18) and is used in conjunction with the hollow column (13).

5. The automobile body mold demoulding structure according to claim 1, characterized in that: The four corners of the slide plate (5) are each provided with a sliding opening, and the sliding opening is slidably connected to the support column (3); a buffer spring (20) is sleeved on the surface of the support column (3), and the buffer spring (20) is located between the base (1) and the slide plate (5).

6. The automobile body mold demoulding structure according to claim 1, characterized in that: The pull plate (11) is in a T-shape, and the top of the pull plate (11) extends to the top of the pulling port and is slidably connected thereto.

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