Part die-casting die

Abstract

The invention is used for the technical field of part die-casting machining, and discloses a part die-casting die which comprises a fixed base, a driving hydraulic rod is fixedly installed on the upper surface of the fixed base, an upper forming movable die is fixedly connected to the upper end of the driving hydraulic rod, and a sliding lower forming movable die is installed on the upper surface of the fixed base. A linkage stripping mechanism is arranged on the outer side of the fixed base, subsequent machining is facilitated in the mode that a workpiece is automatically ejected out in the separation process of the upper forming movable mold and the lower forming movable mold, the linkage stripping mechanism comprises a driving connecting rod, and the upper end of the driving connecting rod is fixedly connected with the outer side surface of the upper end of a driving hydraulic rod. According to the part die-casting die, through the linkage stripping mechanism, workpieces can be automatically ejected out in the separation process of the upper forming movable die and the lower forming movable die, manual operation or additional complex demolding equipment is not needed, the demolding time of a single workpiece is greatly shortened, and the overall production efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting processing of parts, in particular to a die-casting mould for parts. Background Art

[0002] In the context of the booming development of today's parts manufacturing industry, the die-casting process has become one of the key manufacturing methods for producing parts with its high efficiency and high precision. As the industry's requirements for parts quality and production efficiency become increasingly stringent, the innovation of die-casting mold technology is of vital importance to improving production efficiency, reducing costs and ensuring product quality. However, traditional parts die-casting molds have many disadvantages in the demoulding link, which seriously restricts the optimization of the entire die-casting production process. After the traditional die-casting mold is completed, the demoulding process of the workpiece often relies on manual operation or relatively simple demoulding devices. On the one hand, the lack of an automated demoulding mechanism makes it impossible to timely and efficiently eject the workpiece out of the mold cavity when the upper and lower molding dynamic molds are separated. This process usually requires workers to manually use tools such as crowbars, ejectors, etc. to pry or eject the casting from the mold. In some large die-casting workshops, due to the mold There are a large number of molds, and each mold needs to be demolded by workers after die-casting. This requires workers to work for a long time in a high-temperature and noisy environment, which not only greatly increases the workers' operating time and labor intensity, but also easily causes workers to fatigue, thereby affecting work efficiency and operation accuracy. In addition, due to the instability and uncontrollability of manual operation, the workpiece is easily damaged by collision, scratches, etc. during demolding, thereby affecting the product's qualification rate and quality stability. For example, some small and complex parts often deform or scratch the surface during manual demolding due to the difficulty in accurately controlling the demolding force and direction. For these high-precision parts, even a slight deformation or scratch may cause the performance of the parts to deteriorate or even fail to work properly. This is an unacceptable defect, which directly leads to an increase in the scrap rate and increases production costs; In addition, manual demoulding also has certain safety hazards. When using tools such as crowbars for demoulding, workers need to pry the castings hard. If the operation is improper, the crowbar may slip and cause injuries to the workers. Moreover, in the high-temperature die-casting environment, the surface temperature of the castings and molds is high, and workers are easily burned during operation. These safety issues will threaten the health of workers. Moreover, traditional demoulding devices are usually simple in structure and single in function, and cannot meet the demoulding requirements of parts of different types and structures. For some parts with special shapes or structures, such as parts with deep holes, thin walls, undercuts and other features, traditional demoulding devices often cannot effectively remove them from the mold, requiring workers to spend more time and energy to handle them. Summary of the invention

[0003] The object of the present invention is to provide a die-casting mold for a part to solve the problem of poor demoulding method proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting mold for a part, comprising a fixed base, a driving hydraulic rod is fixedly installed on the upper surface of the fixed base, and an upper forming movable mold is fixedly connected to the upper end of the driving hydraulic rod, a sliding lower forming movable mold is installed on the upper surface of the fixed base, and a linkage stripping mechanism is arranged on the outer side of the fixed base, and the workpiece is automatically ejected during the separation process of the upper forming movable mold and the lower forming movable mold, so as to facilitate subsequent processing; The linkage stripping mechanism includes: a driving connecting rod, the upper end of the driving connecting rod is fixedly connected to the outer surface of the upper end of the driving hydraulic rod, and the lower end of the driving connecting rod is fixedly connected to a driving toothed rod, a rotating driving gear is installed on the side surface of the fixed base on one side of the driving toothed rod, and one end of the rotating shaft of the driving gear is fixedly connected to a take-out gear, a sliding support seat is installed on the upper surface of the fixed base, and a linkage toothed rod is fixedly provided on the outer surface of the support seat, a rotating stripping gear is installed on the upper surface of the fixed base, and a stripping toothed rod is fixedly provided on the outer surface of the lower forming movable mold opposite to the stripping gear, a protective plate is fixedly provided on the outer surface of the fixed base, and a clearance groove is opened on the outer surface of the protective plate, a ejecting rod is fixedly provided on the upper surface of the fixed base, and the upper end of the ejecting rod passes through the lower forming movable mold.

[0005] Preferably, tooth blocks are provided on both outer surfaces of the driving gear rod, and the tooth blocks on both sides of the driving gear rod have different numbers of teeth, and the driving gear rod is meshed and connected with the driving gear through the tooth block on the side with more teeth.

[0006] By adopting the above technical solution, the driving gear rod can drive the driving gear to rotate.

[0007] Preferably, the driving gear and the output gear are concentrically arranged, a tooth block is arranged on the lower surface of the linkage gear rod, and the linkage gear rod is meshed and connected with the output gear through the tooth block on the lower surface, and the linkage gear rod is arranged opposite to the yield groove.

[0008] By adopting the above technical solution, the linkage gear rod can be driven by the gear to slide.

[0009] Preferably, one end of the support seat facing the lower forming movable mold is designed as an inclined surface, and the upper end surface of the support seat is in contact with the lower surface of the lower forming movable mold.

[0010] By adopting the above technical solution, when the support seat slides downward toward the movable forming mold, the inclined surface can be used to squeeze the movable forming mold downward to make it move upward.

[0011] Preferably, a tooth block is provided on the outer surface of the stripping tooth rod facing the stripping gear, and the stripping tooth rod is meshingly connected with the stripping gear through the tooth block.

[0012] By adopting the above technical solution, the stripping gear can rotate and drive the lower forming movable mold to move longitudinally through the engagement with the stripping gear rod.

[0013] Preferably, a locking mechanism is provided on one side of the fixed base, and the workpiece needs to be placed inside the upper end of the locking mechanism for unlocking after demoulding, thereby avoiding processing accidents caused by taking out the workpiece; The locking mechanism includes: a mounting frame, which is fixedly arranged on the upper surface of one end of the fixed base, and a sliding support plate is installed on the upper end of the mounting frame, and a material discharge box is fixedly connected to the upper end of the support plate, a clamping groove is provided on the outer surface of one side of the support plate, a sliding limit block is installed on the upper surface of the fixed base on one side of the mounting frame, and a limit plate is fixedly arranged on the outer surface of one end of the limit block, and a limit groove is provided on the outer surface of one side of the lower molding movable mold facing the mounting frame.

[0014] Preferably, a spring is connected between the mounting frame and the support plate, and the clamping groove is located on the outer surface of the support plate on a side close to the limiting block.

[0015] By adopting the above technical solution, the support plate can slide and reset under the support of the spring when no force is applied.

[0016] Preferably, a spring is connected between the limiting block and the fixed base, and one end of the limiting plate is located inside the clamping groove.

[0017] By adopting the above technical solution, the limiting plate can be blocked by the supporting plate and cannot slide when the limiting plate is misaligned with the engaging groove.

[0018] Preferably, the limit block is designed as an isosceles trapezoid, and the limit block and the limit slot are staggered in the upper and lower directions.

[0019] By adopting the above technical solution, the limiting block can be driven to slide when it receives the extrusion slope of the limiting groove.

[0020] Compared with the prior art, the invention has the following beneficial effects: the die-casting mold for the part: 1. When the die-casting process is completed and the upper and lower molding molds start to separate, the linkage ejection mechanism can accurately and automatically eject the workpiece, getting rid of the dependence on manual operation and the need for additional complex, cumbersome and costly demoulding equipment. This automated demoulding mode greatly shortens the demoulding time of a single workpiece. In the mass production process of parts, the slight shortening of the demoulding time of each part will significantly improve the overall production efficiency after the accumulation of a large number of parts, and the production efficiency will rise significantly; Furthermore, compared with the damage of workpiece collision, scratching and the like that is easy to occur in the traditional manual demoulding method, the present invention ensures that the workpiece can be smoothly and smoothly ejected from the mold along the predetermined precise trajectory and method by virtue of the optimized design of the ejector rod and the stable and efficient operation of the linkage mechanism. This process effectively eliminates the surface defects and dimensional deviations of the product caused by improper demoulding, effectively ensures that the surface quality of the product meets high standards, and the dimensional accuracy can also be strictly controlled within a very small tolerance range. The scrap rate caused by demoulding problems is greatly reduced, and the qualified rate and consistency of the product are greatly improved. Furthermore, the linkage stripping mechanism has a unique design that the upper molding movable mold cleverly drives the lower molding movable mold to slide upward and reset during the mold resetting and clamping process. Combined with the stable and reliable support provided by the support seat for the lower molding movable mold, the upper molding movable mold and the lower molding movable mold can achieve high-precision accurate docking when the mold is clamped. This precise clamping method lays a solid foundation for the next die-casting molding, ensures the stability and repeatability of each die-casting process, reduces product defects caused by clamping accuracy problems, and further improves the overall quality and efficiency of the production process. 2. The workpiece after demoulding is placed inside the upper end of the locking mechanism. When the workpiece is placed on the upper end of the locking mechanism after demoulding, the locking mechanism will be automatically unlocked. This design fundamentally eliminates the possibility of the mold being closed again before the molded workpiece is taken out, effectively avoiding serious processing accidents that may be caused by this. The reliable locking mechanism design provides solid safety protection for operators and reduces production risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the fixed base, the protective plate and the clearance groove of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the connection section of the driving gear rod, the driving gear and the belt-out gear of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the stripping gear and the stripping gear rod of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the support plate and the clamping groove of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the fixed base and the support base of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the connection between the lower forming movable mold and the limiting groove of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the cross-section surface connecting the fixed base and the limit block of the present invention.

[0022] In the figure: 1. Fixed base; 2. Driving hydraulic rod; 3. Upper forming movable mold; 4. Lower forming movable mold; 5. Driving connecting rod; 6. Driving gear rod; 7. Driving gear; 8. Take-out gear; 9. Support seat; 10. Linking gear rod; 11. Stripping gear; 12. Stripping gear rod; 13. Protective plate; 14. Make way groove; 15. Ejector rod; 16. Mounting frame; 17. Support plate; 18. Discharge box; 19. Clamping groove; 20. Limit block; 21. Limit plate; 22. Limit groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 8 The present invention provides a technical solution: a part die-casting mold.

[0025] Embodiment 1: This embodiment discloses a fixed base 1, a driving hydraulic rod 2 is fixedly mounted on the upper surface of the fixed base 1, and an upper forming movable die 3 is fixedly connected to the upper end of the driving hydraulic rod 2, a sliding lower forming movable die 4 is mounted on the upper surface of the fixed base 1, and a linkage stripping mechanism is arranged on the outer side of the fixed base 1, and the workpiece is automatically ejected during the separation process of the upper forming movable die 3 and the lower forming movable die 4, so as to facilitate subsequent processing; The linkage stripping mechanism includes: a driving connecting rod 5, the upper end of the driving connecting rod 5 is fixedly connected to the outer surface of the upper end of the driving hydraulic rod 2, and the lower end of the driving connecting rod 5 is fixedly connected to a driving gear rod 6, a rotating driving gear 7 is installed on the side surface of the fixed base 1 on one side of the driving gear rod 6, and a take-out gear 8 is fixedly connected to one end of the rotating shaft of the driving gear 7, a sliding support seat 9 is installed on the upper surface of the fixed base 1, and a linkage gear rod 10 is fixedly arranged on the outer surface of the support seat 9, a rotating stripping gear 11 is installed on the upper surface of the fixed base 1, and a stripping gear rod 12 is fixedly arranged on the outer surface of the lower molding movable mold 4 facing the stripping gear 11, a protective plate 13 is fixedly arranged on the outer surface of the fixed base 1, and a clearance groove 14 is opened on the outer surface of the protective plate 13, and a ejecting rod 15 is fixedly arranged on the upper surface of the fixed base 1, and the upper end of the ejecting rod 15 passes through the lower molding movable mold 4; The outer surfaces of both sides of the driving gear rod 6 are provided with tooth blocks, and the number of teeth of the tooth blocks on both sides of the driving gear rod 6 is different. The driving gear rod 6 is meshed and connected with the driving gear 7 through the tooth block on the side with more teeth. The driving gear 7 and the take-out gear 8 are concentrically arranged, and a tooth block is arranged on the lower surface of the linkage gear rod 10, and the linkage gear rod 10 is meshed and connected with the take-out gear 8 through the tooth block on the lower surface, and the linkage gear rod 10 is arranged opposite to the yielding groove 14; One end of the support seat 9 facing the lower molding movable mold 4 is designed with an inclined surface, and the upper end surface of the support seat 9 is in contact with the lower surface of the lower molding movable mold 4; A tooth block is provided on the outer surface of the stripping gear rod 12 facing the stripping gear 11, and the stripping gear rod 12 is meshed and connected with the stripping gear 11 through the tooth block; When the die-casting process is completed, the driving hydraulic rod 2 starts to drive the upper forming movable mold 3 to move upward. At the same time, the driving connecting rod 5 fixedly connected to the outer side of the upper end of the driving hydraulic rod 2 also moves upward. Since the driving gear rod 6 at the lower end of the driving connecting rod 5 is meshed and connected with the driving gear 7, as the driving gear rod 6 moves upward, the driving gear 7 starts to rotate, and the rotation of the driving gear 7 drives the outgoing gear 8 to rotate synchronously. The rotation of the outgoing gear 8 makes the linkage gear rod 10 meshed with it drive the support seat 9 to slide on the upper surface of the fixed base 1. The linkage gear rod 10 makes way in the moving direction through the give way groove 14 on the protective plate 13, protecting the operator from contact with the rotating parts without affecting the normal movement of the linkage gear rod 10. At the same time, the support seat 9 releases its support for the lower molding movable mold 4. As the driving gear rod 6 continues to slide upward, the tooth block on the side of the driving gear rod 6 with fewer teeth drives the stripping gear 11 to rotate by engaging with the stripping gear 11. The stripping gear 11 drives the lower molding movable mold 4 that has lost its support to slide downward by engaging with the stripping gear rod 12, so that the lower molding movable mold 4 is driven to slide downward relative to the ejector rod 15. The ejector rod 15 ejects the workpiece in the cavity of the lower molding movable mold 4 upward through the relative displacement with the lower molding movable mold 4, thereby completing the automatic demolding of the workpiece.

[0026] Embodiment 2: Based on Embodiment 1, this embodiment discloses that a locking mechanism is provided on one side of the fixed base 1, and the workpiece needs to be placed inside the upper end of the locking mechanism for unlocking after demoulding, thereby avoiding processing accidents caused by taking out the workpiece; The locking mechanism includes: a mounting frame 16, the mounting frame 16 is fixedly arranged on the upper surface of one end of the fixed base 1, and a sliding support plate 17 is installed on the upper end of the mounting frame 16, and a material discharge box 18 is fixedly connected to the upper end of the support plate 17, a clamping groove 19 is provided on the outer surface of the support plate 17 on one side, a sliding limit block 20 is installed on the upper surface of the fixed base 1 on one side of the mounting frame 16, and a limit plate 21 is fixedly arranged on the outer surface of one end of the limit block 20, and a limit groove 22 is provided on the outer surface of one side of the lower molding movable mold 4 facing the mounting frame 16; A spring is connected between the mounting frame 16 and the support plate 17, and the clamping groove 19 is located on the outer surface of the support plate 17 near the side of the limit block 20; A spring is connected between the limit block 20 and the fixed base 1, and one end of the limit plate 21 is located inside the clamping groove 19; The limit block 20 is designed as an isosceles trapezoid, and the limit block 20 and the limit slot 22 are arranged in an up-down staggered manner; After demoulding is completed, the lower forming movable mold 4 slides down so that the limiting groove 22 slides down to the position opposite to the limiting block 20. The limiting block 20 slides and engages with the limiting groove 22 under the drive of the spring. At this time, the support plate 17 drives the discharge box 18 to slide upward under the support of the spring between the mounting frame 16. At this time, when the formed workpiece is not taken out and placed in the discharge box 18, the driving hydraulic rod 2 is started to drive the upper forming movable mold 3 and the driving connecting rod 5 to slide down, and the support seat 9 is driven to squeeze the lower forming movable mold 4 through the inclined surface. The lower forming movable mold 4 moves up to squeeze the inclined surface of one end of the isosceles trapezoid of the limiting block 20. At this time, due to the upward sliding of the engaging groove 19, it is misaligned with the limiting plate 21, so that the limiting plate 21 is limited by the support plate 17, and the sliding of the limiting block 20 is blocked, so that the lower forming movable mold 4 and the upper forming movable mold 3 cannot move into place for die casting again; When the formed workpiece is taken out and placed in the discharge box 18, the discharge box 18 drives the support plate 17 to slide down under the action of the gravity of the workpiece, so that the clamping groove 19 slides down to a position opposite to the limit plate 21. At this time, the limit block 20 drives the limit plate 21 to slide and engage with the clamping groove 19 under the action of the extrusion inclined surface of the limit groove 22 of the lower forming movable mold 4, so that the limit block 20 slides out of the limit groove 22 and no longer limits the lower forming movable mold 4, so that the lower forming movable mold 4 and the upper forming movable mold 3 can continue to be closed for subsequent die casting.

[0027] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A die-casting mold for a part, comprising a fixed base (1), a driving hydraulic rod (2) fixedly mounted on the upper surface of the fixed base (1), and an upper forming movable mold (3) fixedly connected to the upper end of the driving hydraulic rod (2), and a sliding lower forming movable mold (4) mounted on the upper surface of the fixed base (1), characterized in that: A linkage stripping mechanism is arranged on the outer side of the fixed base (1), and the workpiece is automatically ejected during the separation process of the upper forming movable die (3) and the lower forming movable die (4), so as to facilitate subsequent processing; The linkage stripping mechanism comprises: a driving connecting rod (5), the upper end of the driving connecting rod (5) is fixedly connected to the outer surface of the upper end of the driving hydraulic rod (2), and the lower end of the driving connecting rod (5) is fixedly connected to a driving gear rod (6), a rotating driving gear (7) is installed on the side surface of the fixed base (1) on one side of the driving gear rod (6), and a take-out gear (8) is fixedly connected to one end of the rotating shaft of the driving gear (7), tooth blocks are arranged on the outer surfaces of both sides of the driving gear rod (6), and the tooth blocks on both sides of the driving gear rod (6) have different numbers of teeth, and the driving gear rod (6) is meshed with the driving gear (7) through the tooth block on the side with more teeth, and a sliding support seat (9) is installed on the upper surface of the fixed base (1), and the support seat (9 ) is fixedly provided with a linkage gear rod (10), a rotating stripping gear (11) is installed on the upper surface of the fixed base (1), and a stripping gear rod (12) is fixedly provided on the outer surface of the lower molding movable mold (4) opposite to the stripping gear (11), a tooth block is provided on the outer surface of the stripping gear rod (12) facing the stripping gear (11), and the stripping gear rod (12) is meshed with the stripping gear (11) through the tooth block, a protective plate (13) is fixedly provided on the outer surface of the fixed base (1), and a clearance groove (14) is provided on the outer surface of the protective plate (13), and a ejector rod (15) is fixedly provided on the upper surface of the fixed base (1), and the upper end of the ejector rod (15) passes through the lower molding movable mold (4).

2. A die-casting mold for parts according to claim 1, characterized in that: The driving gear (7) and the output gear (8) are arranged concentrically, a tooth block is arranged on the lower surface of the linkage gear rod (10), and the linkage gear rod (10) is meshedly connected with the output gear (8) via the tooth block on the lower surface, and the linkage gear rod (10) is arranged opposite to the clearance groove (14).

3. A die-casting mold for parts according to claim 1, characterized in that: One end of the support seat (9) facing the lower molding movable die (4) is designed as an inclined surface, and the upper end surface of the support seat (9) fits the lower surface of the lower molding movable die (4).

4. The die-casting mold for a part according to claim 1, characterized in that: A locking mechanism is provided on one side of the fixed base (1), and after demoulding, the workpiece needs to be placed inside the upper end of the locking mechanism for unlocking, thereby avoiding processing accidents caused by removing the workpiece.

5. A die-casting mold for parts according to claim 4, characterized in that: The locking mechanism comprises: a mounting frame (16), the mounting frame (16) being fixedly arranged on the upper surface of one end of the fixed base (1), and a sliding support plate (17) being installed on the upper end of the mounting frame (16), and a material discharge box (18) being fixedly connected to the upper end of the support plate (17), a clamping groove (19) being provided on the outer surface of one side of the support plate (17), a sliding limit block (20) being installed on the upper surface of the fixed base (1) on one side of the mounting frame (16), and a limit plate (21) being fixedly arranged on the outer surface of one end of the limit block (20), and a limit groove (22) being provided on the outer surface of one side of the lower molding movable mold (4) facing the mounting frame (16).

6. A die-casting mold for parts according to claim 5, characterized in that: A spring is connected between the mounting frame (16) and the support plate (17), and the clamping groove (19) is located on the outer surface of the support plate (17) on a side close to the limiting block (20).

7. The die-casting mold for a part according to claim 5, characterized in that: A spring is connected between the limit block (20) and the fixed base (1), and one end of the limit plate (21) is located inside the clamping groove (19).

8. The die-casting mold for a part according to claim 5, characterized in that: The limit block (20) is designed to be an isosceles trapezoid, and the limit block (20) and the limit slot (22) are arranged to be staggered up and down.

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