Low-cost long-service-life machine tool demolding mold

Abstract

A low-cost long-service-life machine tool demolding mold comprises a base, a stamping frame and a first telescopic cylinder fixedly connected to the top of the stamping frame, a lower mold base is arranged at the top of the base, a lower mold groove is formed in the top of the lower mold base, and the stamping frame is installed at the top of the base. And quick replacement and structure simplification are realized. Specifically, the limiting inserting block driven by the second telescopic cylinder is arranged on the side wall of the mounting box, and the mounting opening matched with the top and the side wall of the mounting box is formed in the side wall of the mounting box, so that rapid insertion and extraction and reliable locking of the upper die head are achieved, and when the die is replaced, the upper die head can be taken out through the mounting opening only by controlling the second telescopic cylinder to retract the limiting inserting block; by means of the design, the operation process is greatly simplified, maintenance difficulty and time cost caused by complex structure and tedious disassembly and assembly are reduced, potential fault points are reduced through the simplified mechanical structure, and the overall reliability of equipment is improved.

Description

Technical Field

[0001] This invention relates to the technical field of machine tool demolding, and specifically to a low-cost, long-life machine tool demolding mold. Background Technology

[0002] A die-press press is typically a stamping press, primarily designed for various sheet metal products. Through dies, it can produce blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting, and extrusion parts, among other things. It is widely used in various fields, such as switches and sockets, cups, cabinets, plates, computer cases, and many other accessories, all of which can be produced by die-press presses.

[0003] According to Chinese patent number "CN 222767079 U", an automatic demolding mold for a stamping machine is disclosed, including a base, with a set of support legs fixedly installed on the lower left and lower right ends. This invention's automatic demolding mold for a stamping machine facilitates replacement of the stamping frame by removing the pin from the reinforcing hole and connecting hole, and disassembling the connecting cylinder from the hydraulic rod. When the mold inside the stamping frame needs to be removed, firstly, the limiting pin is removed from the limiting hole and mounting hole, and two adjusting columns are controlled to move downwards. Driven by the two adjusting columns, the push plate moves downwards, and the push plate pushes, making it easy to remove the mold inside the stamping frame. By setting a mold frame and an electric push rod, the electric push rod drives the fixed plate to move upwards, and the fixed plate pushes, causing the slider to drive the connecting plate upwards, enabling the mold inside the mold frame to be demolded.

[0004] The automatic demolding mold in the above technology is removed by a positioning pin, and two adjusting columns are controlled to move downwards, while the push plate moves downwards. Under the push of the push plate, the mold inside the stamping frame is easily removed. However, in actual replacement, the above operation is relatively complicated, with many structural parts, which is not convenient for actual operation. At the same time, the electric push rod and the fixed plate are used in conjunction to push out the mold after forming during the demolding process. However, since the material used in actual use does not have a support or limiting structure, it needs to be manually handled during processing, which poses a safety risk. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the problems that the existing upper mold head replacement operation is relatively complicated, has many structural parts, is not convenient for actual operation, and the material does not have a support or limiting structure in actual processing, which requires manual handling and poses a safety risk.

[0006] The technical solution adopted to solve the above technical problems is:

[0007] A low-cost, high-life machine tool demolding mold includes a base, a stamping frame, and a first telescopic cylinder fixedly connected to the top of the stamping frame. The top of the base is provided with a lower mold base and a lower mold groove. It also includes a mounting box fixedly connected to the output end of the first telescopic cylinder. At least one upper mold head is vertically inserted into the mounting box. A freely retractable positioning mechanism is inserted into the upper mold head. When the positioning mechanism extends, it fixes the upper mold head in the mounting box. An upper pressure plate is elastically connected to the bottom of the mounting box. It also includes at least two sets of material placement platforms slidably disposed in the lower mold base. Matching materials are placed on one side of both sets of material placement platforms. Both sets of material placement platforms are connected to a reset mechanism by bolts and threads. Under normal conditions, the reset mechanism pushes the material placement platform higher than the top of the lower mold base.

[0008] As a preferred embodiment of the present invention, the positioning mechanism includes a limiting block, which is inserted into the upper mold head, and the other end of the limiting block is connected to a second telescopic cylinder, which is fixedly connected to the outer wall of the mounting box.

[0009] As a preferred embodiment of the present invention, the top of the material placement platform matches the bottom of the upper pressure plate.

[0010] As a preferred embodiment of the present invention, the bottom of the mounting box is fixedly connected with a plurality of elastic telescopic blocks, and the telescopic ends of the plurality of elastic telescopic blocks are fixedly connected to the top of the upper pressure plate.

[0011] As a preferred embodiment of the present invention, the reset mechanism includes two sets of reset springs and sliding blocks. The upper end of each set of reset springs is fixed to the bottom of the sliding block, and the interior of each sliding block is threadedly connected to the material placement table by bolts.

[0012] As a preferred embodiment of the present invention, the lower mold base is provided with at least two sets of guide grooves, the lower end of each reset spring is fixedly connected to the lower part of the inner wall of the corresponding guide groove, and the multiple material placement platforms are slidably connected in the corresponding guide grooves.

[0013] As a preferred embodiment of the present invention, the lower mold groove is disposed on the top of the lower mold base and corresponds to the upper mold head disposed above. The interior of the mounting box is provided with at least one positioning groove, the upper mold head is inserted into the positioning groove, and its lower end passes through the mounting box and passes through the upper pressure plate.

[0014] As a preferred embodiment of the present invention, the top and side walls of the mounting box are provided with mounting openings, and the mounting openings are positioned corresponding to the mounting positions of the upper mold head.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. It enables quick mold replacement and simplifies the structure, significantly improving operational safety and maintenance efficiency.

[0017] This invention achieves rapid replacement and structural simplification by optimizing the installation and locking structure of the upper die head. Specifically, by setting a limiting block driven by a second telescopic cylinder on the side wall of the mounting box, and cooperating with the mounting ports on the top and side wall of the mounting box, the upper die head can be quickly inserted and reliably locked. When changing the die, only the second telescopic cylinder needs to be controlled to retract the limiting block, and the upper die head can be taken out through the mounting port without disassembling multiple connecting parts or using special tools. This design greatly simplifies the operation process and reduces the maintenance difficulties and time costs caused by complex structure and cumbersome disassembly and assembly. At the same time, the simplified mechanical structure reduces potential failure points and improves the overall reliability of the equipment. More importantly, this design avoids the safety risks that operators may face during complex disassembly and assembly processes, making die replacement work safer and more efficient.

[0018] 2. It provides automated material support and demolding functions, effectively ensuring processing safety and molding quality.

[0019] This invention creatively incorporates a material placement platform driven by a return spring within the lower die base. In its natural state, the return spring pushes the material placement platform above the top of the lower die base, providing a stable initial support platform for the material to be processed. This fundamentally avoids the high-risk operation method where the operator must hold the material while stamping. During the stamping process, the upper pressure plate first contacts and presses the material, and then moves downward in conjunction with the material placement platform to complete the stamping process. After stamping is completed, as the upper die head returns, the return spring automatically lifts and resets the material placement platform and the formed workpiece, achieving reliable and stable automatic demolding. This integrated support and ejection structure not only completely eliminates the safety hazards of manual intervention in the stamping area, but also effectively reduces the risk of workpiece deformation or die jamming through a stable pressing and ejection process, significantly improving the consistency and stability of stamping quality.

[0020] Secondly, the material placement platform and the sliding block are connected by bolts, allowing the material placement platform to be replaced according to the material specifications, thus improving the adaptability of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the main body structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional connection structure between the lower mold base and the material placement platform of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the lower mold base body of the present invention;

[0025] Figure 5 This is a schematic diagram of the rear view structure of the present invention.

[0026] In the diagram: 1. Base; 2. Stamping frame; 3. First telescopic cylinder; 4. Upper die head; 5. Mounting box; 6. Limiting block; 7. Second telescopic cylinder; 8. Upper pressure plate; 9. Lower die base; 10. Lower die groove; 11. Material placement platform; 12. Material; 13. Guide groove; 14. Sliding block; 15. Return spring; 16. Bolt; 17. Elastic telescopic block; 18. Mounting port. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0032] Example 1

[0033] exist Figures 1-5 In this invention, a technical solution is provided: a low-cost, high-life machine tool demolding mold, including a base 1, a stamping frame 2, and a first telescopic cylinder 3 fixedly connected to the top of the stamping frame 2. A lower mold base 9 is provided on the top of the base 1, and a lower mold groove 10 is opened on the top of the lower mold base 9. The stamping frame 2 is installed on the top of the base 1.

[0034] The output end of the first telescopic cylinder 3 is fixedly connected to a mounting box 5. At least one upper die head 4 is vertically inserted into the interior of the mounting box 5. To enable quick replacement and reliable fixing of the upper die head 4, a positioning mechanism is provided on the mounting box 5. Specifically, as follows... Figure 2 As shown, the positioning mechanism includes a limiting block 6 and a second telescopic cylinder 7 that drives the limiting block 6 to extend and retract. The second telescopic cylinder 7 is fixedly installed on the outer wall of the mounting box 5, and its output end is connected to one end of the limiting block 6. The other end of the limiting block 6 can be inserted into the slot on the side wall of the upper mold head 4. When the second telescopic cylinder 7 drives the limiting block 6 to extend, the upper mold head 4 can be firmly locked in the mounting box 5. When the upper mold head needs to be replaced, the second telescopic cylinder 7 retracts, driving the limiting block 6 to exit the slot, so that the upper mold head 4 can be taken out of the mounting box 5. Compared with the existing technology, the structure is more compact, thereby improving the service life of the equipment.

[0035] To facilitate the installation and removal of the upper mold head 4, the top and side walls of the mounting box 5 are provided with mounting ports 18. The mounting ports 18 are positioned corresponding to the installation position of the upper mold head 4. Operators or tools can reach into these mounting ports 18 to apply force to insert or pull the upper mold head 4 into the positioning slot in the mounting box 5, which greatly simplifies the mold replacement process.

[0036] The bottom of the mounting box 5 is elastically connected to the upper pressure plate 8 via multiple elastic telescopic blocks 17. The lower end of the upper die head 4 passes through the mounting box 5 and extends into the upper pressure plate 8. During stamping, the first telescopic cylinder 3 drives the entire mounting box 5 downward. The upper pressure plate 8 first contacts the material and presses it tightly. Then the elastic telescopic blocks 17 are compressed, and the upper die head 4 continues to descend to complete the stamping operation. This structure can effectively prevent material movement and improve processing quality and safety.

[0037] At least two sets of material placement platforms 11 are slidably arranged inside the lower mold base 9. The top shape of the material placement platform 11 matches the bottom shape of the upper pressure plate 8. The two work together to stably support the material 12. The lower mold base 9 is equipped with a reset mechanism for each material placement platform 11. Specifically, the reset mechanism includes a reset spring 15 and a sliding block 14. A guide groove 13 is opened inside the lower mold base 9. The lower end of the reset spring 15 is fixed to the bottom of the guide groove 13, and the upper end is connected to the bottom of the sliding block 14. The sliding block 14 is threadedly connected to the material placement platform 11 by bolts 16. Under the pre-tightening force of the reset spring 15, the normal initial position of the material placement platform 11 is pushed to a position higher than the top of the lower mold base 9. During processing, the elastic telescopic block 17, together with the upper pressure plate 8, first contacts the material placement platform 11 and squeezes the material placement platform 11 and the material to move down. It then works with the lower mold base 9 to complete the molding operation, thereby facilitating the placement of the material 12 for molding and demolding.

[0038] The working principle of this invention is as follows: First, the equipment is prepared and the material is loaded. The material 12 to be processed is placed on two sets of material placement platforms 11 that are higher than the top of the lower die base 9. The material placement platform 11 is kept in an elevated state under the pre-tightening force of the return spring 15, providing stable support for the material 12. This design fundamentally avoids the safety risk of the operator having to hold the material to perform the stamping operation. Then, the first telescopic cylinder 3, which is fixedly connected to the top of the stamping frame 2, is activated. Its output end drives the entire mounting box 5 to move downward. The upper pressure plate 8 at the bottom of the mounting box 5 first contacts and presses the material 12, making it stable on the material placement platform 11. As the mounting box 5 continues to descend, multiple elastic telescopic blocks 17 connected to it and the upper pressure plate 8 begin to be compressed. This elastic buffering process ensures a smooth transition of the pressing force. Subsequently, at least one upper die head 4, which is vertically inserted into the mounting box 5, overcomes the resistance and continues to descend, finally embedding into the lower die groove 10 set at the top of the base 1, completing the stamping and forming operation of the material 12.

[0039] Then comes the crucial demolding stage. The first telescopic cylinder 3 begins its return stroke, driving the mounting box 5 and the upper mold head 4 and upper pressure plate 8 fixed on it to move upward synchronously. At this time, the previously compressed reset spring 15 begins to release energy, pushing the sliding block 14, which is threadedly connected to the material placement table 11 by bolts 16, to slide upward along the guide groove 13, thereby lifting the material placement table 11 along with the already formed workpiece, so that it can smoothly leave the lower mold groove 10 and complete the automatic demolding process.

[0040] Finally, in the mold replacement and maintenance process, when the upper mold head 4 needs to be replaced, the second telescopic cylinder 7, which is fixedly connected to the outer wall of the mounting box 5, is controlled to retract, causing the limit block 6 to exit from its position inside the upper mold head 4, thus releasing the lock on the upper mold head 4. The operator can then remove the upper mold head 4 to be replaced from the positioning groove inside the mounting box 5 through the mounting ports 18 set on the top and side walls of the mounting box 5. After the new upper mold head 4 is inserted, the second telescopic cylinder 7 drives the limit block 6 to be inserted to complete the fixation. This design enables rapid mold replacement and significantly simplifies the maintenance process.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A low-cost, high-life machine tool demolding mold, comprising a base (1), a stamping frame (2), and a first telescopic cylinder (3) fixedly connected to the top of the stamping frame (2), wherein the top of the base (1) is provided with a lower mold base (9) and a lower mold groove (10), characterized in that: It also includes a mounting box (5) fixedly connected to the output end of the first telescopic cylinder (3). At least one upper die head (4) is vertically inserted inside the mounting box (5). A freely retractable positioning mechanism is inserted inside the upper die head (4). When the positioning mechanism extends, it fixes the upper die head (4) inside the mounting box (5). An upper pressure plate (8) is elastically connected to the bottom of the mounting box (5). It also includes at least two sets of material placement platforms (11) slidably disposed in the lower die base (9). Matching materials (12) are placed on one side of both sets of material placement platforms (11). Both sets of material placement platforms (11) are threadedly connected to a reset mechanism by bolts (16). Under normal conditions, the reset mechanism pushes the material placement platform (11) higher than the top of the lower die base (9).

2. The low-cost, high-lifespan machine tool release mold according to claim 1, characterized in that: The positioning mechanism includes a limiting block (6), which is inserted into the upper mold head (4). The other end of the limiting block (6) is connected to a second telescopic cylinder (7), which is fixedly connected to the outer wall of the mounting box (5).

3. The low-cost, high-lifespan machine tool release mold according to claim 1, characterized in that: The top of the material placement platform (11) matches the bottom of the upper pressure plate (8).

4. The low-cost, high-lifespan machine tool release mold according to claim 3, characterized in that: The bottom of the mounting box (5) is fixedly connected to a plurality of elastic telescopic blocks (17), and the telescopic ends of the plurality of elastic telescopic blocks (17) are fixedly connected to the top of the upper pressure plate (8).

5. A low-cost, high-life machine tool release mold according to claim 1, characterized in that: The reset mechanism includes two sets of reset springs (15) and sliding blocks (14). The upper end of each set of reset springs (15) is fixed to the bottom of the sliding block (14). The interior of each sliding block (14) is threadedly connected to the material placement table (11) by bolts (16).

6. A low-cost, high-lifespan machine tool release mold according to claim 5, characterized in that: The lower mold base (9) is provided with at least two sets of guide grooves (13). The lower end of each reset spring (15) is fixedly connected to the lower part of the inner wall of the corresponding guide groove (13). Multiple material placement platforms (11) are slidably connected in the corresponding guide grooves (13).

7. A low-cost, high-lifespan machine tool release mold according to claim 1, characterized in that: The lower mold groove (10) is located on the top of the lower mold base (9) and corresponds to the upper mold head (4) located above. The interior of the mounting box (5) is provided with at least one positioning groove. The upper mold head (4) is inserted into the positioning groove, and its lower end passes through the mounting box (5) and passes through the upper pressure plate (8).

8. A low-cost, high-life machine tool release mold according to any one of claims 1-7, characterized in that: The top and side walls of the mounting box (5) are provided with mounting openings (18), and the mounting openings (18) are positioned corresponding to the mounting positions of the upper mold head (4).

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