Hydraulic device for mould assembly

Abstract

The utility model belongs to the related technical field of machining especially a hydraulic device for die assembly. Including lifting slide and bending upper die, the bottom of lifting slide is equipped with assembly groove, and is equipped with the rear wear plate on the inner wall of assembly groove and fixes, inlaying has the locating post on the rear wear plate, is equipped with the locating hole on bending upper die, and is connected on wear plate through locating hole and locating post, the both sides fixed of lifting slide have the seat board. The utility model, hydraulic cylinder drive rack makes linear motion, realizes mechanical amplification through the tooth groove of rack and pressure knife plate's tooth engagement, completes the clamping or release of pressure knife plate, through the cooperation of the locating post and locating hole of even distribution, is used for ensuring the accurate positioning of bending upper die in the assembly process, can reduce the die testing adjustment time, compared with the screw fastening mode, can effectively improve the assembly efficiency, also avoids the professional injury caused by the worker's long time keeping screwing posture.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically a hydraulic device for mold assembly. Background Technology

[0002] Bending is an essential key process in the sheet metal processing industry. Small-batch, multi-variety sheet metal bending has become a new trend in the industry. Therefore, it is necessary to frequently change bending dies. The upper die clamping device of the bending machine is widely used on various bending machines. It is a connection device between the bending machine and the bending die. It is installed on the bending machine to clamp the upper bending die.

[0003] The upper bending die is installed between the connecting pressure plate and the upper die connecting plate. Usually, each bending machine has a certain number of clamping devices, and each clamping device is fastened by screws. So when installing or replacing the upper die, dozens of screws need to be tightened or loosened, which is time-consuming, laborious, and requires a special wrench, which is very inconvenient.

[0004] Therefore, we propose a hydraulic device for mold assembly to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a hydraulic device for mold assembly, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A hydraulic device for mold assembly includes a lifting slider and a bending upper die. The bottom of the lifting slider is provided with an assembly groove, and a rear wear-resistant plate is fixed on the inner wall of the assembly groove. A positioning post is embedded in the rear wear-resistant plate. The bending upper die is provided with a positioning hole and is engaged with the wear-resistant plate through the positioning hole and the positioning post. Seat plates are fixed on both sides of the lifting slider, and a hydraulic cylinder is fixed on the top of the seat plate. A rack is fixed to the output end of the hydraulic cylinder. A pressure plate is hinged to the seat plate, and the top of the pressure plate is provided with a tooth groove. The tooth groove and the rack mesh with each other. A front wear-resistant plate is fixed on the pressure plate.

[0010] Furthermore, the positioning posts are evenly distributed on the rear wear-resistant plate, and the positioning holes are evenly distributed on the upper bending die, with the positions of the positioning holes corresponding to those of the positioning posts.

[0011] Furthermore, the seat plate is L-shaped, and a cover plate is fixed on the seat plate.

[0012] Furthermore, a limit switch is installed on the hydraulic cylinder, and the output end of the hydraulic cylinder extends into the base plate.

[0013] Furthermore, a linear guide rail is installed in the base plate, and an adapter block is installed on the slider of the linear guide rail.

[0014] Furthermore, the adapter block is connected to the output end of the hydraulic cylinder, and the rack is fixed on the adapter block.

[0015] Furthermore, the rear wear-resistant plate and the front wear-resistant plate are arranged facing each other, and the bending upper die is located between the rear wear-resistant plate and the front wear-resistant plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a hydraulic device for mold assembly, which has the following advantages:

[0018] This invention uses a hydraulic cylinder to drive a rack in linear motion. The rack and the toothed grooves on the pressure plate mesh together to amplify the force, thus clamping or releasing the pressure plate. The evenly distributed positioning pins and positioning holes ensure the precise positioning of the bending die during assembly, reducing trial molding and adjustment time. Compared to screw fastening, this invention effectively improves assembly efficiency and avoids occupational injuries caused by workers maintaining a screw-tightening posture for extended periods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the seat plate portion of this utility model.

[0022] In the diagram: 1. Lifting slider; 2. Bending upper die; 3. Assembly slot; 4. Rear wear-resistant plate; 5. Positioning pin; 6. Positioning hole; 7. Seat plate; 8. Hydraulic cylinder; 9. Rack; 10. Pressure plate; 11. Gear groove; 12. Front wear-resistant plate; 13. Cover plate; 14. Limit switch; 15. Linear guide rail; 16. Adapter block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figures 1-3 As shown in the figure, an embodiment of the present invention provides a hydraulic device for mold assembly, including a lifting slider 1 and a bending upper die 2. The bottom of the lifting slider 1 is provided with an assembly groove 3, and a rear wear-resistant plate 4 is fixed on the inner wall of the assembly groove 3. A positioning post 5 is embedded in the rear wear-resistant plate 4. The bending upper die 2 is provided with a positioning hole 6, and is engaged with the wear-resistant plate through the positioning hole 6 and the positioning post 5. Seat plates 7 are fixed on both sides of the lifting slider 1, and a hydraulic cylinder 8 is fixed on the top of the seat plate 7. A rack 9 is fixed to the output end of the hydraulic cylinder 8. A pressure plate 10 is hinged to the seat plate 7, and the pressure plate 10... The top of the die 0 is provided with a toothed groove 11, which meshes with the rack 9. A front wear-resistant plate 12 is fixed on the pressure plate 10. The hydraulic cylinder 8 drives the rack 9 to move linearly. The mechanical amplification is achieved through the meshing of the rack 9 and the toothed groove 11 on the pressure plate 10, which completes the clamping or releasing of the pressure plate 10. The evenly distributed positioning pins 5 and positioning holes 6 are used to ensure the accurate positioning of the bending upper die 2 during the assembly process, which can reduce the trial mold adjustment time. Compared with the screw fastening method, it can effectively improve the assembly efficiency and also avoid occupational injuries caused by workers maintaining the screw-tightening posture for a long time.

[0026] like Figure 2 As shown, in some embodiments, the positioning posts 5 are evenly distributed on the rear wear-resistant plate 4, and the positioning holes 6 are evenly distributed on the bending upper die 2, with the positioning holes 6 corresponding to the positions of the positioning posts 5. The positioning posts 5 are used to support the bending upper die 2, and the positioning holes 6 and positioning posts 5 are mainly used to ensure the accurate positioning of the bending upper die 2 during the assembly process.

[0027] like Figure 1 As shown, in some embodiments, the seat plate 7 is L-shaped, and a cover plate 13 is fixed on the seat plate 7. The seat plate 7 is used to fix other components, and the cover plate 13 provides a certain degree of protection.

[0028] like Figure 1 As shown, in some embodiments, a limit switch 14 is installed on the hydraulic cylinder 8, and the output end of the hydraulic cylinder 8 extends into the seat plate 7. The limit switch 14 is often used to detect the stroke position of the hydraulic cylinder 8. Its working principle is based on detecting the piston movement state through magnetic induction or mechanical contacts, and controlling the hydraulic system action through signal transmission.

[0029] like Figure 3 As shown, in some embodiments, a linear guide rail 15 is installed in the base plate 7, and an adapter block 16 is installed on the slider of the linear guide rail 15. The core function of the linear guide rail 15 is to support and guide the moving parts so that they can perform high-precision reciprocating linear motion in a specific direction.

[0030] like Figure 3 As shown, in some embodiments, the adapter block 16 is connected to the output end of the hydraulic cylinder 8, and the rack 9 is fixed on the adapter block 16. The adapter block 16 is mainly used to fix the cylinder together with other components in a specific device, structure or system so that they can be installed or operated stably.

[0031] like Figure 2 As shown, in some embodiments, the rear wear-resistant plate 4 and the front wear-resistant plate 12 are arranged facing each other, and the bending upper die 2 is located between the rear wear-resistant plate 4 and the front wear-resistant plate 12. The bending upper die 2 completes the installation and fixation of the upper die by clamping between the rear wear-resistant plate 4 and the front wear-resistant plate 12. Both the rear wear-resistant plate 4 and the front wear-resistant plate 12 are made of tungsten steel alloy.

[0032] In use, the hydraulic cylinder 8 drives the rack 9 to move linearly. The mechanical amplification is achieved through the meshing of the rack 9 and the tooth groove 11 on the pressure plate 10, which completes the clamping or release of the pressure plate 10. The evenly distributed positioning pins 5 and positioning holes 6 are used to ensure the accurate positioning of the bending upper die 2 during the assembly process, which can reduce the trial mold adjustment time. Compared with the screw fastening method, it can effectively improve the assembly efficiency and also avoid occupational injuries caused by workers maintaining the screw-tightening posture for a long time.

[0033] In summary, the hydraulic cylinder 8 drives the rack 9 to move linearly. The mechanical amplification is achieved through the meshing of the rack 9 and the toothed grooves 11 on the pressure plate 10, which completes the clamping or releasing of the pressure plate 10. The evenly distributed positioning pins 5 and positioning holes 6 are used to ensure the precise positioning of the bending upper die 2 during the assembly process, which can reduce the trial mold adjustment time. Compared with the screw fastening method, it can effectively improve the assembly efficiency and also avoid occupational injuries caused by workers maintaining the screw-tightening posture for a long time.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic device for mold assembly, comprising a lifting slider (1) and a bending upper die (2), characterized in that: The bottom of the lifting slider (1) is provided with an assembly groove (3), and a rear wear-resistant plate (4) is fixed on the inner wall of the assembly groove (3). A positioning post (5) is embedded on the rear wear-resistant plate (4). The bending upper die (2) is provided with a positioning hole (6), and is snapped onto the wear-resistant plate through the positioning hole (6) and the positioning post (5). A seat plate (7) is fixed on both sides of the lifting slider (1), and a hydraulic cylinder (8) is fixed on the top of the seat plate (7). A rack (9) is fixed on the output end of the hydraulic cylinder (8). A pressure plate (10) is hinged on the seat plate (7), and a toothed groove (11) is provided on the top of the pressure plate (10). The toothed groove (11) and the rack (9) mesh with each other. A front wear-resistant plate (12) is fixed on the pressure plate (10).

2. The hydraulic device for mold assembly according to claim 1, characterized in that: The positioning pins (5) are evenly distributed on the rear wear-resistant plate (4), and the positioning holes (6) are evenly distributed on the bending upper die (2), with the positioning holes (6) corresponding to the positions of the positioning pins (5).

3. The hydraulic device for mold assembly according to claim 1, characterized in that: The seat plate (7) is L-shaped, and a cover plate (13) is fixed on the seat plate (7).

4. The hydraulic device for mold assembly according to claim 1, characterized in that: The hydraulic cylinder (8) is equipped with a limit switch (14), and the output end of the hydraulic cylinder (8) extends into the base plate (7).

5. A hydraulic device for mold assembly according to claim 1, characterized in that: A linear guide (15) is installed in the seat plate (7), and an adapter block (16) is installed on the slider of the linear guide (15).

6. A hydraulic device for mold assembly according to claim 5, characterized in that: The adapter block (16) is connected to the output end of the hydraulic cylinder (8), and the rack (9) is fixed on the adapter block (16).

7. A hydraulic device for mold assembly according to claim 1, characterized in that: The rear wear-resistant plate (4) and the front wear-resistant plate (12) are arranged facing each other, and the bending upper die (2) is located between the rear wear-resistant plate (4) and the front wear-resistant plate (12).

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