Iron tooth automatic trimming and ejecting die holder

Abstract

The utility model discloses an automatic trimming and ejecting die holder for iron teeth, which belongs to the technical field of iron tooth processing and comprises a lower die holder and an upper die holder connected with a press, the upper die holder is positioned above the lower die holder, and a trimming frame and a positioning die for placing the iron teeth are respectively mounted on the surfaces, close to each other, of the upper die holder and the lower die holder. The edge cutting frame is provided with an edge cutting edge matched with the positioning die, the positioning die is sleeved with a flash discharging plate, the flash discharging plate is provided with at least two first pull rods, the upper ends of the first pull rods are connected with the edge cutting frame, and an ejector die is installed between the edge cutting frame and the upper die base. The lower end of the ejector die can penetrate through the edge cutting frame to extend to the edge cutting edge, at least two second pull rods are installed on the ejector die, the lower ends of the second pull rods are connected with the lower die base, and automatic separation of iron teeth and flash can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron tooth processing, and particularly relates to an automatic trimming and ejecting die base for iron teeth. Background Art

[0002] Flash usually exists at the edge of a forging after forging and forming. The flash of an ordinary forging is removed by a simple trimming die. The forging with flash is placed on the trimming female die by a manipulator. The upper punch is installed on a press, and the press drives the upper punch to move downward to achieve the function of removing flash. Under the action of the upper punch, the forging passes through the trimming female die and falls onto the moving trolley below. The trolley drives the trimmed forging to the next process, and the flash remains above the female die and is taken away manually from above the trimming female die.

[0003] As Figure 4 shown: An iron tooth is a special-shaped workpiece, including a cuboid-like component 18 and two short teeth 19. The two short teeth 19 are integrally connected to the lower end surface of the cuboid-like component 18. An outwardly protruding arc edge 21 is provided at the edge of the cuboid-like component 18. During the forging process of the iron tooth, the flash generated is located at the most protruding part of the arc edge 21;

[0004] In order to completely remove the flash on the iron tooth, the trimming edge on the upper die base usually has a micro-gap fit with the most protruding part of the arc edge 21. After removing the flash, the roughness of the cut is relatively large, resulting in a large frictional force between the trimming edge and the iron tooth, and the iron tooth gets stuck on the trimming edge and cannot fall off;

[0005] Since the iron tooth is a special-shaped part and the cuboid-like component 18 is relatively slender, it is not convenient to be vertically placed and positioned. Therefore, the existing trimming die is not suitable for removing the flash of the iron tooth.

[0006] Aiming at the problems existing in the above-mentioned prior art, the utility model designs and manufactures an automatic trimming and ejecting die base for iron teeth to overcome the above defects. Utility Model Content

[0007] For the problems existing in the prior art, an automatic trimming and ejecting die base for iron teeth provided by the utility model can realize the automatic separation of the iron tooth and the flash.

[0008] To achieve the above object, the technical solution adopted by the utility model is as follows: An automatic trimming and ejecting die base for iron teeth, including a lower die base and an upper die base connected to a press. The upper die base is located above the lower die base. A trimming frame and a positioning die for placing the iron tooth are respectively installed on the mutually approaching surfaces of the upper die base and the lower die base. A trimming edge cooperating with the positioning die is provided on the trimming frame;

[0009] A flash discharging plate is sleeved on the positioning die, and at least two first pull rods are installed on the flash discharging plate. The upper ends of the first pull rods are connected to the trimming frame.

[0010] A part ejecting die is installed between the trimming frame and the upper die base. At least two second pull rods are installed on the part ejecting die. The lower ends of the second pull rods are connected to the lower die base. When the trimming frame rises to a certain height, the lower end of the part ejecting die can pass through the trimming frame and extend to the trimming edge to eject the iron teeth.

[0011] Preferably, the trimming frame includes a transverse pressing plate and several vertical plates. The lower ends of the vertical plates are connected to the transverse pressing plate, and the upper ends of the vertical plates are connected to the upper die base. The trimming edge is arranged on the transverse pressing plate.

[0012] Preferably, the part ejecting die includes a mounting plate and a profiling concave die. The profiling concave die is installed on the lower end face of the mounting plate. The profiling concave die is in sliding fit with the trimming edge. The mounting plate is located between the transverse pressing plate and the upper die base.

[0013] Preferably, through holes corresponding to the first pull rods one by one are provided on the mounting plate. The upper ends of the first pull rods can pass through the through holes and extend above the mounting plate.

[0014] Preferably, the profiling concave die is detachably installed on the mounting plate.

[0015] Preferably, both the part ejecting die and the positioning die are profiling dies matching the iron teeth, and the two short teeth of the iron teeth can be inserted into the positioning die.

[0016] Preferably, both the first pull rod and the second pull rod include a connecting rod. Vertical holes corresponding to the connecting rod one by one are provided on the lower die base, the transverse pressing plate, the mounting plate and the flash discharging plate. The connecting rod is in sliding fit with the vertical holes.

[0017] Preferably, stoppers are installed at both ends of the connecting rod. The diameter of the stopper is smaller than the diameter of the through hole.

[0018] The diameter of the stopper is larger than the diameter of the vertical hole. The stopper located at the upper end of the connecting rod can abut against the upper end faces of the vertical holes on the transverse pressing plate and the mounting plate, and the stopper located at the lower end face of the connecting rod can abut against the lower end faces of the vertical holes on the lower die base and the flash discharging plate.

[0019] Preferably, the height of the profiling concave die is equal to the sum of the heights of the transverse pressure plate and the trimming edge. A nitrogen spring is installed on the lower end face of the upper die base, and the lower end of the nitrogen spring is connected to the mounting plate. When the nitrogen spring is not stretched, the lower end face of the profiling concave die is higher than the lower end face of the trimming edge.

[0020] Preferably, at least two guide pillars are installed on the upper die base, and guide sleeves corresponding to the guide pillars one by one are installed on the lower die base.

[0021] The beneficial effects of the present utility model are as follows:

[0022] 1. The present utility model is provided with a blank holding die. The blank holding die is connected to the lower die base through a second pull rod. After the cutting is completed, the iron teeth stuck at the trimming edge rise together with the press to separate from the flash. After the blank holding die rises to a certain height, the first pull rod is limited and moves downward relative to the transverse pressure plate to eject the iron teeth, realizing the separation of the iron teeth from the trimming edge, facilitating the grasping by the manipulator, simplifying the actions of the manipulator, and improving the working efficiency.

[0023] 2. The present utility model is sleeved with a flash unloading plate on the positioning die and is connected to the trimming frame through a first pull rod. The flash cut by the trimming edge is sleeved on the positioning die. When the trimming frame moves upward, the stop on the first pull rod abuts against the transverse pressure plate, pulling the flash unloading plate to move upward together to separate the positioning die from the flash, facilitating the cleaning and transportation of the flash and facilitating the realization of automated production.

[0024] 3. The profiling concave die and the positioning die of the present utility model are both profiling dies for iron teeth. During the feeding by the manipulator, accurate positioning can be achieved, and a certain deviation correction function can be played. When trimming the flash, the profiling concave die and the positioning die can shape the iron teeth, and there are no defects such as deformation after trimming, improving the production quality of the iron teeth. Description of the Drawings

[0025] Figure 1 It is a cross-sectional view of an automatic trimming and blank holding die base for iron teeth of the present utility model;

[0026] Figure 2 It is a side view of an automatic trimming and blank holding die base for iron teeth of the present utility model;

[0027] Figure 3 It is an isometric side view of an automatic trimming and blank holding die base for iron teeth of the present utility model;

[0028] Figure 4 It is a schematic diagram of the iron tooth structure.

[0029] In the figure: 1 - upper die holder, 2 - vertical plate, 3 - first pull rod, 4 - through hole, 5 - transverse pressing plate, 6 - trimming edge, 7 - vertical hole, 8 - flash discharging plate, 9 - positioning die, 10 - lower die holder, 11 - guide bushing, 12 - guide pillar, 13 - profiling concave die, 14 - mounting plate, 15 - nitrogen spring, 16 - stop head, 17 - second pull rod, 18 - cuboid-like component, 19 - short tooth, 20 - connecting rod, 21 - arc edge. Detailed implementation mode

[0030] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with the attached drawings.

[0031] As Figures 1-4 shown, an automatic trimming and ejecting die holder for iron teeth includes a lower die holder 10 and an upper die holder 1 connected to a press. The upper die holder 1 is located above the lower die holder 10. A trimming frame and a positioning die 9 for placing iron teeth are respectively installed on the mutually approaching surfaces of the upper die holder 1 and the lower die holder 10, which are used for placing iron teeth and positioning the iron teeth to avoid the iron teeth shaking or being inaccurately positioned and affecting the trimming quality.

[0032] The trimming frame of the present utility model is provided with a trimming edge 6 that cooperates with the positioning die 9. The trimming frame includes a transverse pressing plate 5 and several vertical plates 2. The vertical plates 2 are installed between the transverse pressing plate 5 and the upper die holder 1. The vertical plates 2 connect the transverse pressing plate 5 and the upper die holder 1 together, and the trimming edge 6 is arranged on the transverse pressing plate 5;

[0033] Specifically, the press drives the upper die holder 1 to move downward, and the trimming frame also moves downward accordingly. The trimming edge 6 cooperates with the positioning die 9. During the downward movement, the flash on the iron teeth is cut off. The cut-off flash is pushed by the trimming edge 6 and sleeved on the positioning die 9. The iron teeth are stuck in the trimming edge 6. When the press lifts, it moves upward together with the upper die holder 1 to realize automatic separation from the flash.

[0034] A flash discharging plate 8 is sleeved on the positioning die 9 of the present utility model, and at least two first pull rods 3 are installed on the flash discharging plate 8. The upper ends of the first pull rods 3 are connected to the trimming frame;

[0035] Specifically, after the cutting is completed, the press rises. The upper ends of the first pull rods 3 abut against the trimming frame and rise together with the press. The flash discharging plate 8 connected to the lower ends of the first pull rods 3 also rises accordingly, and the flash sleeved on the positioning die 9 is pushed to the upper end of the positioning die 9. Realize the automatic separation of the flash from the device, reduce the labor intensity of workers, improve production efficiency, and facilitate automated production.

[0036] A ejector die is installed between the trimming frame of the utility model and the upper die base 1. The ejector die includes a mounting plate 14 and a profiling concave die 13. The profiling concave die 13 is detachably mounted on the lower end face of the mounting plate 14. The mounting plate 14 is located between the transverse pressure plate 5 and the upper die base 1. The profiling concave die 13 is in sliding fit with the trimming edge 6. At least two second pull rods 17 are slidably installed between the ejector die and the lower die base 10. One end of the second pull rod 17 is connected to the lower die base 10, and the other end of the second pull rod 17 can abut against the upper end face of the ejector die.

[0037] The height of the profiling concave die 13 of the utility model is equal to the sum of the heights of the transverse pressure plate 5 and the trimming edge 6. A nitrogen spring 15 is installed on the lower end face of the upper die base 1. The lower end of the nitrogen spring 15 is connected to the mounting plate 14. When the nitrogen spring 15 is not stretched, the lower end face of the profiling concave die 13 is higher than the lower end face of the trimming edge 6.

[0038] Specifically, after cutting, the ejector die connected to the nitrogen spring 15 rises together with the press. After rising to a certain height, the upper end of the second pull rod 17 abuts against the mounting plate 14, restricting the upward movement of the mounting plate 14. At this time, the press continues to drive the trimming frame upward, and the profiling concave die 13 on the ejector die moves downward relative to the trimming frame, ejecting the iron teeth in the trimming edge 6. The separation of the iron teeth from the trimming edge 6 is realized, which is convenient for the manipulator to grasp, simplifies the movement of the manipulator, and improves the working rhythm.

[0039] Both the first pull rod 3 and the second pull rod 17 of the utility model include a connecting rod 20. Stoppers 16 are installed at both ends of the connecting rod 20. Vertical holes 7 corresponding to the connecting rod 20 one by one are provided on the lower die base 10, the transverse pressure plate 5, the mounting plate 14 and the flash discharging plate 8. The connecting rod 20 is in sliding fit with the vertical holes 7.

[0040] Through holes 4 corresponding to the first pull rod 3 one by one are provided on the mounting plate 14. The diameter of the stopper 16 is smaller than the diameter of the through hole 4. The upper end of the first pull rod 3 can pass through the through hole 4 and extend above the mounting plate 14. When the press presses down, the first pull rod 3 will not interfere with the movement of the mounting plate 14.

[0041] Specifically, the diameter of the stopper 16 is larger than the diameter of the vertical hole 7. The stopper 16 located at the upper end of the connecting rod 20 can abut against the upper end faces of the vertical holes 7 on the transverse pressure plate 5 and the mounting plate 14, and the stopper 16 located at the lower end face of the connecting rod 20 can abut against the lower end faces of the vertical holes 7 on the lower die base 10 and the flash discharging plate 8, playing a role of linkage and limiting.

[0042] Specifically, both the top die and the positioning die 9 are profiling dies matching the iron teeth. The two short teeth 19 of the iron teeth can be inserted into the positioning die 9, which facilitates the manipulator to place the iron teeth. The profiling part of the short teeth 19 on the positioning die 9 can also prevent the iron teeth from shaking when the iron teeth are placed. In addition, when the press is pressed down for cutting, the top die and the positioning die 9 press on the iron teeth, and can also shape the iron teeth during the process of removing the flash, thereby improving the qualified rate of the forging.

[0043] At least two guide columns 12 are installed on the upper die base 1 of the present utility model, and guide sleeves 11 corresponding to the guide columns 12 one by one are installed on the lower die base 10 to guide the up and down movement of the press.

[0044] It should be understood that the use of these embodiments is only for illustrating the present utility model and is not intended to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. An iron tooth automatic trimming top piece die base, characterized in that: It comprises a lower die base (10) and an upper die base (1) connected to a press, the upper die base (1) being located above the lower die base (10), a trimming frame and a positioning die (9) for placing iron teeth being installed on the mutually adjacent sides of the upper die base (1) and the lower die base (10), the trimming frame being provided with a trimming edge (6) cooperating with the positioning die (9); The positioning die (9) is sleeved with a flash discharge plate (8), and at least two first pull rods (3) are installed on the flash discharge plate (8), and the upper ends of the first pull rods (3) are connected to the trimming frame; A push-piece mold is installed between the trimming frame and the upper mold base (1), and at least two second tie rods (17) are installed on the push-piece mold. The lower ends of the second tie rods (17) are connected to the lower mold base (10). When the trimming frame rises to a certain height, the lower end of the push-piece mold can pass through the trimming frame and extend to the trimming edge (6) to push out the iron teeth.

2. The die base for automatic trimming of iron teeth according to claim 1, characterized in that: The trimming frame comprises a transverse pressing plate (5) and a plurality of vertical plates (2), the lower ends of the vertical plates (2) are connected to the transverse pressing plate (5), the upper ends of the vertical plates (2) are connected to the upper die seat (1), and the trimming edge (6) is arranged on the transverse pressing plate (5).

3. The die base for automatic trimming of iron teeth according to claim 2, characterized in that: The top piece mold comprises a mounting plate (14) and a profiling die (13), wherein the profiling die (13) is mounted on the lower end surface of the mounting plate (14), the profiling die (13) is slidably matched with the trimming edge (6), and the mounting plate (14) is located between the transverse pressing plate (5) and the upper die seat (1).

4. The die base for automatic trimming of iron teeth according to claim 3, characterized in that: The mounting plate (14) is provided with through holes (4) corresponding one to one with the first pull rods (3), and the upper ends of the first pull rods (3) can pass through the through holes (4) and extend above the mounting plate (14).

5. The die base for automatic trimming of iron teeth according to claim 3, characterized in that: The profiling die (13) is detachably mounted on the mounting plate (14).

6. The iron gear automatic trimming top piece die base according to claim 1, characterized in that: The ejector mold and the positioning mold (9) are both contour molds that match the iron tooth, and the two short teeth (19) of the iron tooth can be inserted into the positioning mold (9).

7. The die base for automatic trimming of iron teeth according to claim 4, characterized in that: The first pull rod (3) and the second pull rod (17) both include a connecting rod (20); the lower die base (10), the transverse pressure plate (5), the mounting plate (14) and the flash discharge plate (8) are all provided with vertical holes (7) corresponding to the connecting rods (20); the connecting rods (20) are slidably matched with the vertical holes (7).

8. The iron gear automatic trimming top piece die base according to claim 7, characterized in that: Both ends of the connecting rod (20) are provided with stoppers (16), and the diameter of the stoppers (16) is smaller than the diameter of the through hole (4); The diameter of the stopper (16) is greater than the diameter of the vertical hole (7); the stopper (16) located at the upper end of the connecting rod (20) can abut against the upper end surface of the vertical hole (7) on the transverse pressure plate (5) and the mounting plate (14); and the stopper (16) located at the lower end surface of the connecting rod (20) can abut against the lower end surface of the vertical hole (7) on the lower die base (10) and the flash unloading plate (8).

9. The iron gear automatic trimming top piece die base according to claim 3, characterized in that: The height of the profiling die (13) is equal to the sum of the heights of the transverse pressure plate (5) and the trimming edge (6). A nitrogen spring (15) is installed on the lower end surface of the upper die base (1). The lower end of the nitrogen spring (15) is connected to the mounting plate (14). When the nitrogen spring (15) is not stretched, the lower end surface of the profiling die (13) is higher than the lower end surface of the trimming edge (6).

10. The iron gear automatic trimming top piece die base according to claim 1, characterized in that: At least two guide pillars (12) are mounted on the upper die base (1), and guide sleeves (11) corresponding one to one with the guide pillars (12) are mounted on the lower die base (10).

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