Ejection mechanism of precision hardware stamping die

Abstract

The utility model relates to the technical field of hardware stamping, in particular to an ejection mechanism of a precision hardware stamping die, and adopts the technical scheme that the ejection mechanism comprises a limiting table, a bottom frame is fixedly mounted at the bottom of the limiting table, clamping frames are movably inserted into the two sides of the lower end face of the limiting table respectively, and ejection plates are movably mounted on the opposite sides of the two clamping frames; a buffering plate is fixedly installed on the lower surface of the top plate, buffering grooves are formed in the upper end face of the buffering plate at equal intervals, a bottom plate is fixedly installed at the bottom of the buffering plate, and a jacking air cylinder is arranged on the lower end face of the bottom plate. According to the utility model, the aims of reducing the loss of the top part and conveniently replacing the top part after being damaged are successfully achieved, a more efficient and reliable ejection solution is provided for the field of hardware manufacturing, and the problems that the ejection part at the present stage is easy to damage during use and is inconvenient to replace after being damaged are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware stamping technical field, concretely is a kind of ejector mechanism of precision hardware stamping die. BACKGROUND

[0002] In the hardware manufacturing process, cold stamping die is indispensable tool.This kind of die is usually composed of two parts: upper die and lower die.The template of lower die is equipped with a detachable core component, and when stamping operation is carried out, it is this core that determines the final shape of hardware.

[0003] At present, when hardware stamping operation is carried out, hardware is formed in core, at this time, hardware needs to be ejected, so that finished hardware is taken out, but when actually used, since hardware is stamping formed, due to the greater stamping force, the ejector component at the bottom of core is damaged, and when damaged seriously, the ejector component needs to be repaired or replaced, and the ejector component used at present is inconvenient to replace, so a kind of ejector mechanism of precision hardware stamping die is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of ejector mechanism of precision hardware stamping die, with the advantages of reducing the loss of top component and facilitating replacement after damage, solve the problem that the ejector component of present stage is easily damaged when used and inconvenient to replace after damage.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of ejector mechanism of precision hardware stamping die, including limit table, the limit table bottom is fixedly installed with base frame, the limit table lower end surface two sides are respectively movably inserted with clamping frame, and the opposite side of two clamping frames is movably installed with top plate;

[0006] The bottom plate is fixedly installed with buffer plate on the lower surface of the top plate, buffer grooves are equidistantly formed on the upper end surface of the buffer plate, the bottom of the buffer plate is fixedly installed with bottom plate, and the bottom end surface of the bottom plate is provided with lift cylinder.

[0007] Preferably, limit grooves are formed on the two sides of the limit table, a shaping groove is formed on the upper end surface of the limit table, and the shaping groove penetrates the limit table.The design of limit groove provides accurate guidance and positioning for clamping frame, ensures that clamping frame can be stably and accurately installed below limit table, so as to maintain the stability and accuracy of top plate in the process of ejection.

[0008] The shaping groove is the key area of hardware forming, and its penetration design in the limit table enables the top plate to completely cover and lift the hardware in the shaping groove, ensuring that the hardware can be smoothly demolded from the die.

[0009] Preferably, the two ends of the inner side of the chassis are respectively fixedly installed with reinforcing strips, and the cross section of the reinforcing strip adopts a triangular structure design. The triangular structure design of the reinforcing strip provides excellent stability and strength, which can effectively resist the huge pressure and vibration generated during the stamping process, thereby prolonging the service life of the chassis and the entire mold.

[0010] Preferably, the upper end faces of the two clamping frames are respectively fixedly installed with limiting racks on the sides facing away from each other, and the two clamping frames adopt a Z-shaped structure design. The Z-shaped structure design not only provides sufficient strength and rigidity for the clamping frame, but also enables the clamping frame to flexibly adapt to the shape and size of the limiting table, ensuring that the top plate can stably support the hardware.

[0011] The design of the limiting rack further enhances the stability of the clamping frame, and through cooperation with the limiting groove, the accurate position of the clamping frame in the chassis is ensured.

[0012] Preferably, the limiting rack and the limiting groove are matched in size, and the two clamping frames are respectively movably inserted into the limiting table below the inner side of the chassis through the limiting rack and the limiting groove. The precise cooperation between the limiting rack and the limiting groove ensures that the clamping frame can be stably installed below the limiting table, thereby avoiding the shaking or deviation phenomenon that may occur during ejection.

[0013] This cooperation design also enables the clamping frame to be easily removed from the chassis, facilitating replacement when the top plate or the buffer plate is damaged.

[0014] Preferably, the cross-sectional size of the top plate matches the cross-sectional size of the shaping groove, and the upper end face of the top plate is flush with the lower end face of the limiting table. In the design, the cross-sectional size of the top plate matches the cross-sectional size of the shaping groove, ensuring that the top plate can completely cover and lift the hardware in the shaping groove, avoiding the possible damage or deformation of the hardware during ejection.

[0015] The design of the top plate upper end face flush with the lower end face of the limiting table enables the top plate to maintain close contact with the limiting table during ejection, thereby improving the stability and efficiency of ejection.

[0016] Preferably, the bottom of the jacking cylinder is fixedly connected with the inner side of the chassis, and the top of the jacking cylinder is in contact with but not fixedly connected with the top of the bottom plate on the opposite side of the two clamping frames. In the design, the fixed connection between the bottom of the jacking cylinder and the chassis ensures that the cylinder can provide stable support during ejection, thereby ensuring the smooth lifting and lowering of the top plate.

[0017] The design of the top of the jacking cylinder in contact with but not fixedly connected with the top of the bottom plate enables the cylinder to flexibly adapt to the slight movement and deformation of the top plate during ejection, avoiding additional stress and wear caused by fixed connection. At the same time, this design also facilitates maintenance or replacement when the top plate is damaged.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The buffering plate fixedly installed on the lower surface of the top plate and the buffering grooves equidistantly formed on the buffering plate play a key buffering role.In the stamping process, when the hardware is stamped into a shape, the buffering plate can absorb part of the impact force, reduce the impact directly received by the top plate, thereby reducing the loss of the top plate, the clamping frame is movably installed on the lower end surface of the limiting table, and this design allows the clamping frame to have a certain elastic deformation space when the clamping frame is impacted, further disperses the impact force, and reduces the loss of the top plate and the connecting components thereof.

[0020] The clamping frame is movably installed below the limiting table, and this design makes it convenient to disassemble the clamping frame when the top plate or the buffering plate and the like is damaged, and then the top plate and the like below the clamping frame can be easily replaced.Compared with the prior art in which the mold needs to be disassembled as a whole, this design greatly simplifies the replacement process, improves the maintenance efficiency, and the jacking cylinder on the lower end surface of the bottom plate is in contact with the top of the bottom plate but is not fixedly connected, and this design makes it unnecessary to disassemble the jacking cylinder when the top plate and the like is replaced, and only the clamping frame and the top plate and the like above the clamping frame need to be taken out as a whole.This further simplifies the replacement process and reduces the maintenance difficulty.

[0021] To sum up, the ejection mechanism of the precise hardware stamping die successfully achieves the target of reducing the loss of the top component and facilitating replacement after damage through ingenious design, and provides a more efficient and reliable ejection solution for the hardware manufacturing field. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the utility model;

[0023] Figure 2 It is a limiting table structure schematic diagram of the utility model;

[0024] Figure 3 It is a clamping frame connecting structure schematic diagram of the utility model;

[0025] Figure 4 It is a cross section schematic diagram of the clamping frame connecting structure of the utility model.

[0026] In the drawing: 1, limiting table; 11, shaping groove; 12, limiting groove; 2, clamping frame; 21, limiting frame; 3, base frame; 31, reinforcing strip; 4, top plate; 41, buffering plate; 411, buffering groove; 42, bottom plate; 5, jacking cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] Embodiment one

[0029] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the utility model provides an embodiment: a kind of ejector mechanism of precision hardware stamping die, including limit table 1, limit table 1 bottom fixed mounting has underframe 3, two sides of limit table 1 lower end surface respectively movably insert mounting clamping frame 2, and the opposite side of two clamping frames 2 movably installs top plate 4;

[0030] Top plate 4 lower surface fixed mounting has buffer plate 41, buffer groove 411 is equidistantly arranged on the upper end surface of buffer plate 41, and buffer plate 41 bottom fixed mounting has bottom plate 42, and the lower end surface of bottom plate 42 is equipped with lift cylinder 5.

[0031] Specifically, the buffer plate 41 fixedly installed on the lower surface of the top plate 4 and the buffer grooves 411 equidistantly arranged on the buffer plate 41 play a key buffering role. During the stamping process, when the hardware is formed by stamping, the buffer plate 41 can absorb part of the impact force, reduce the impact directly received by the top plate 4, thereby reducing the loss of the top plate 4, and the clamping frame 2 is movably installed on the lower end surface of the limit table 1. This design allows the clamping frame 2 to have a certain elastic deformation space when it is impacted, further disperses the impact force, and reduces the loss of the top plate 4 and its connecting components.

[0032] The clamping frame 2 is movably inserted and mounted below the limit table 1. This design allows the clamping frame 2 to be easily removed when the top plate 4 or the buffer plate 41 and other components are damaged, and the top plate 4 and the buffer plate 41 and other components below it are easily replaced. Compared with the prior art which needs to disassemble the mold as a whole, this design greatly simplifies the replacement process and improves the maintenance efficiency. The lift cylinder 5 on the lower end surface of the bottom plate 42 is in contact with the top of the bottom plate 42 but not fixedly connected. This design allows the lift cylinder 5 to be removed when replacing the top plate 4 and other components, and only the clamping frame 2 and the top plate 4 and other components above it need to be removed as a whole. This further simplifies the replacement process and reduces the difficulty of maintenance.

[0033] In summary, the ejection mechanism of the precision hardware stamping die successfully achieves the goal of reducing the loss of top components and facilitating replacement after damage through ingenious design, providing a more efficient and reliable ejection solution for the hardware manufacturing field.

[0034] Embodiment Two

[0035] In order to improve the stability of the limiting table and the structure connected with the limiting table, and facilitate disassembly during use, as shown in Figure 1 , Figure 2 and Figure 3 , in this embodiment, limiting grooves 12 are provided on both sides of the limiting table 1, and a shaping groove 11 is provided on the upper end face of the limiting table 1, which penetrates the limiting table 1. The design of the limiting groove 12 provides accurate guidance and positioning for the clamping frame 2, ensuring that the clamping frame 2 can be stably and accurately installed below the limiting table 1, thereby maintaining the stability and accuracy of the top plate 4 during ejection.

[0036] The shaping groove 11 is a key area for hardware forming, and its design of penetrating the limiting table 1 allows the top plate 4 to completely cover and lift the hardware in the shaping groove 11, ensuring that the hardware can be smoothly demolded from the mold.

[0037] Further, reinforcing bars 31 are fixedly installed at the front and rear ends of the inner side of the base frame 3, and the cross section of the reinforcing bars 31 adopts a triangular structure design. The triangular structure design of the reinforcing bars 31 provides excellent stability and strength, which can effectively resist the huge pressure and vibration generated during stamping, thereby prolonging the service life of the base frame 3 and the entire mold.

[0038] Further, limiting racks 21 are fixedly installed on the upper end faces of the two clamping frames 2 away from each other, and the two clamping frames 2 adopt a Z-shaped structure design. The Z-shaped structure design not only provides sufficient strength and rigidity for the clamping frame 2, but also allows the clamping frame 2 to flexibly adapt to the shape and size of the limiting table 1, ensuring that the top plate 4 can stably hold up the hardware.

[0039] The design of the limiting rack 21 further enhances the stability of the clamping frame 2, and through cooperation with the limiting groove 12, the accurate position of the clamping frame 2 in the base frame 3 is ensured.

[0040] Further, the limiting rack 21 is matched in size with the limiting groove 12, and the two clamping frames 2 are movably inserted into the limiting table 1 below the inner side of the base frame 3 through the limiting rack 21 and the limiting groove 12. The precise cooperation between the limiting rack 21 and the limiting groove 12 ensures that the clamping frame 2 can be stably installed below the limiting table 1, thereby avoiding the phenomenon of shaking or deviation that may occur during ejection.

[0041] This matching design also allows the clamping frame 2 to be easily removed from the bottom frame 3, making it easy to replace the top plate 4 or the buffer plate 41 when they are damaged.

[0042] Example Three

[0043] To improve the ejection efficiency of finished hardware, as shown in the embodiment, the cross-sectional size of the top plate 4 matches that of the plasticizing groove 11, and the upper end surface of the top plate 4 is flush with the lower end surface of the limiting table 1. Figure 4 In the design, the cross-sectional size of the top plate 4 matches that of the plasticizing groove 11, ensuring that the top plate 4 can completely cover and lift the hardware in the plasticizing groove 11, avoiding damage or deformation of the hardware during ejection.

[0044] The design of the top plate 4 upper end surface flush with the limiting table 1 lower end surface allows the top plate 4 to maintain close contact with the limiting table 1 during ejection, thereby improving the stability and efficiency of the ejection.

[0045] Further, the bottom of the lifting cylinder 5 is fixedly connected to the inside bottom of the bottom frame 3, and the top of the lifting cylinder 5 is in contact with the top of the bottom plate 42 on the opposite side of the two clamping frames 2 but not fixedly connected.

[0046] The design of the top of the lifting cylinder 5 being in contact with the top of the bottom plate 42 but not fixedly connected allows the cylinder to flexibly adapt to the small movements and deformations of the top plate 4 during ejection, avoiding additional stress and wear caused by fixed connection.

[0047] The utility model discloses when using, ensure that the whole ejection mechanism has been installed correctly in the lower mould part of hardware stamping die. Limiting platform 1 is fixed on the chassis 3, and the clamping frame 2 is movably inserted in the lower of limiting platform 1 through the limiting frame 21 and the limiting groove 12. The top plate 4 is movably supported by two clamping frames 2, and the upper end surface of top plate 4 is flush with the lower end surface of limiting platform 1, and the jacking cylinder 5 is in the inactivated state, and its top does not contact or only slightly contacts the bottom plate 42 without exerting pressure. When stamping hardware, the upper die descends and contacts the limiting platform 1, and the metal plate is stamped into the required shape through the plastic groove 11. At this time, the top plate 4 is buffered by the buffer plate 41, and the influence of stamping on the top plate 4 is reduced, and the clamping frame 2 can support the top plate 4. After stamping is completed, the upper die rises and leaves the limiting platform 1. At this time, the jacking cylinder 5 is activated, and its piston rod extends upward, pushing the bottom plate 42 and the buffer plate 41 and the top plate 4 above to move upward together. Since the cross-sectional dimension of the top plate 4 matches the cross-sectional dimension of the plastic groove 11, the top plate 4 will accurately lift the hardware located in the plastic groove 11, so that it is separated from the limiting platform 1. The jacking cylinder 5 continues to push the top plate 4 to rise until the hardware is completely ejected from the limiting platform 1. At this time, the operator can easily take out the hardware. After the hardware is taken out, the piston rod of the jacking cylinder 5 is retracted, driving the top plate 4 and the structure below it to descend and return to the initial position. If the top plate 4 and the buffer plate 41 are damaged due to long-term use, these components can be conveniently replaced by disassembling the clamping frame 2. Since the clamping frame 2 is movably inserted through the limiting frame 21 and the limiting groove 12, it can be easily taken out from below the limiting platform 1, and then the top plate 4 or the buffer plate 41 can be replaced.

[0048] It is obvious to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An ejection mechanism for a precision metal stamping die, comprising a limiting platform (1), wherein a base frame (3) is fixedly mounted on the bottom of the limiting platform (1), characterized in that: The limiting platform (1) has clamping frames (2) movably inserted on both sides of its lower end face, and top plates (4) are movably installed on opposite sides of the two clamping frames (2). A buffer plate (41) is fixedly installed on the lower surface of the top plate (4). Buffer grooves (411) are provided at equal intervals on the upper surface of the buffer plate (41). A bottom plate (42) is fixedly installed on the bottom of the buffer plate (41). A lifting cylinder (5) is provided on the lower surface of the bottom plate (42).

2. The ejection mechanism of a precision metal stamping die according to claim 1, characterized in that, Limiting grooves (12) are respectively opened on both sides of the limiting platform (1), and a shaping groove (11) is opened on the upper surface of the limiting platform (1), and the shaping groove (11) passes through the limiting platform (1).

3. The ejection mechanism of a precision hardware stamping die according to claim 1, characterized in that, The base frame (3) has reinforcing strips (31) fixedly installed at both the front and rear ends of its inner side. The cross section of the reinforcing strips (31) adopts a triangular structure design.

4. The ejection mechanism of a precision metal stamping die according to claim 1, characterized in that, Limiting frames (21) are fixedly installed on opposite sides of the upper surfaces of the two clamping frames (2), and both clamping frames (2) adopt a Z-shaped structure design.

5. The ejection mechanism of a precision hardware stamping die according to claim 4, characterized in that, The size of the limiting frame (21) and the limiting groove (12) are matched. The two clamping frames (2) are respectively inserted into the limiting platform (1) on the inner side of the base frame (3) through the limiting frame (21) and the limiting groove (12).

6. The ejection mechanism of a precision metal stamping die according to claim 1, characterized in that, The cross-sectional dimensions of the top plate (4) match the cross-sectional dimensions of the shaping groove (11), and the upper end face of the top plate (4) is flush with the lower end face of the limiting platform (1).

7. The ejection mechanism of a precision metal stamping die according to claim 1, characterized in that, The bottom of the lifting cylinder (5) is fixedly connected to the bottom of the inner side of the base frame (3), and the top of the lifting cylinder (5) is in contact with but not fixedly connected to the top of the base plate (42) on the opposite side of the two clamping frames (2).

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