Gear machining forming die

Abstract

The utility model discloses a gear machining and forming die which comprises an upper die, a lower die is arranged below the upper die, a forming groove is formed in the surface of the top end of the lower die, a tooth forming die is movably installed in the forming groove, four limiting blocking pieces are movably installed at the top end of the tooth forming die, four retraction grooves are formed in the forming groove, and the tooth forming die is movably installed in the retraction grooves. And the surface of the tooth forming die is provided with a plurality of positioning holes, the bottom end of the upper die is movably provided with a plurality of positioning rods, and the positioning rods are movably inserted into the positioning holes. According to the utility model, the four limiting separation blades are rotated to the position of the retraction groove by rotating the limiting separation blades, at the moment, the four limiting separation blades can be respectively pressed towards the inner side of the retraction groove, so that the limiting separation blades retract into the retraction groove, and at the moment, the tooth forming die can be taken out from the interior of the forming groove; and the condition that the gear forming mold falls off simultaneously when the gear is demolded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gear forming molds, and specifically relates to a gear processing and forming mold. Background Technique

[0002] A gear refers to a mechanical component with teeth on the rim that can continuously mesh to transmit motion and power.

[0003] When gears are produced and processed, die-casting molds are usually used to form the gears. A die-casting mold is a tool for casting metal parts and a tool for completing the die-casting process on a dedicated die-casting forging machine.

[0004] When the existing gear processing and forming molds are in use, it is usually difficult to adjust the thickness of the formed gears, resulting in the need to use different molds for production, which is very inconvenient. Therefore, it does not meet the existing requirements, and for this reason, we propose a gear processing and forming mold. Content of the Utility Model

[0005] The purpose of the utility model is to provide a gear processing and forming mold to solve the problems mentioned in the above background technique, such as it is usually difficult to adjust the thickness of the formed gears when the gear processing and forming mold is in use, resulting in the need to use different molds for production, which is very inconvenient.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A gear processing and forming mold, including an upper mold, a lower mold is provided below the upper mold, a forming groove is provided on the top surface of the lower mold, a tooth forming mold is movably installed inside the forming groove, four limiting flanges are movably installed on the top of the tooth forming mold, four retraction grooves are provided inside the forming groove, the limiting flanges are all movably clamped into the inside of the retraction grooves, a plurality of positioning holes are provided on the surface of the tooth forming mold, a plurality of positioning rods are movably installed at the bottom end of the upper mold, and the positioning rods are all movably inserted into the inside of the positioning holes.

[0007] Preferably, compression springs are all movably installed inside the retraction grooves, wear-resistant pads are provided on the side surfaces of the limiting flanges close to the compression springs, and the surfaces of the compression springs are all in contact with the wear-resistant pads on the surfaces of the limiting flanges.

[0008] Preferably, a lifting groove is provided at the bottom end of the upper mold, a lifting plate is slidably installed inside the lifting groove, an adjusting mold is fixedly installed at the bottom end of the lifting plate, and a shaping groove is provided at the center of the bottom end of the lifting plate.

[0009] Preferably, a shaping block is fixedly installed at the position of the top of the lower mold inside the tooth forming mold, the shaping block is movably clamped into the inside of the shaping groove, and the adjusting mold is movably clamped into the inside between the tooth forming mold and the shaping block.

[0010] Preferably, a plurality of spring grooves are provided on the outer surface of the bottom end of the upper mold, the top ends of the positioning rods are slidably inserted into the interior of the spring grooves, and pressing springs are movably installed between the positioning rods and the interior of the spring grooves.

[0011] Preferably, an electric push rod is provided at the top end of the upper mold, the output end of the electric push rod is fixedly connected to the top end of the lifting plate, and a scale is provided on the outer surface of the adjusting mold.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the cooperation of the limit flapper and the tooth forming mold, when the device is in use, when it is necessary to maintain or replace the tooth forming mold, the limit flapper can be rotated to make the four limit flappers rotate to the position of the retraction groove. At this time, the four limit flappers can be respectively pressed towards the inside of the retraction groove to make the limit flapper retract into the interior of the retraction groove. At this time, the tooth forming mold can be taken out from the interior of the forming groove, avoiding the situation where the tooth forming mold falls off simultaneously when the gear is demolded;

[0014] 2. Through the cooperation of the positioning rod and the positioning hole, when the device is in use, it is necessary to align the positioning rod with the positioning hole. Only in this way can the upper mold and the lower mold cooperate when the upper mold descends, avoiding the misalignment between the adjusting mold and the tooth forming mold;

[0015] 3. Through the cooperation of the lifting groove and the lifting plate, when the device is in use, the lifting plate can be driven to lift and lower by the electric push rod, so that the distance between the adjusting mold and the interior of the bottom end of the upper mold can be adjusted according to the scale on the outer surface of the adjusting mold, and further the distance that the adjusting mold can be inserted into the tooth forming mold can be adjusted, so that the device can produce gears of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 is a front sectional view of the whole of the present utility model;

[0018] Figure 3 is a top sectional view of the whole of the present utility model;

[0019] Figure 4 is the present utility model Figure 2 a partial structural schematic diagram of part A in.

[0020] In the figure: 1. Upper die; 2. Lower die; 3. Electric push rod; 4. Forming groove; 5. Limit retaining piece; 6. Tooth forming die; 7. Positioning hole; 8. Shaping block; 9. Lifting groove; 10. Lifting plate; 11. Shaping groove; 12. Adjusting die; 13. Retraction groove; 14. Compression spring; 15. Positioning rod; 16. Spring groove; 17. Extrusion spring. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Please refer to Figures 1 to 4 , an embodiment provided by the present invention: A gear processing and forming die, including an upper die 1, a lower die 2 is arranged below the upper die 1, a forming groove 4 is arranged on the top surface of the lower die 2, a tooth forming die 6 is movably installed inside the forming groove 4, four limit retaining pieces 5 are movably installed on the top of the tooth forming die 6, four retraction grooves 13 are arranged inside the forming groove 4, and the limit retaining pieces 5 are all movably clamped into the inside of the retraction grooves 13. A plurality of positioning holes 7 are arranged on the surface of the tooth forming die 6, and a plurality of positioning rods 15 are movably installed at the bottom end of the upper die 1, and the positioning rods 15 are all movably inserted into the inside of the positioning holes 7.

[0023] Through the cooperation of the limit retaining piece 5 and the tooth forming die 6, when the device is in use, when the tooth forming die 6 needs to be maintained or replaced, the four limit retaining pieces 5 can be rotated by rotating the limit retaining piece 5 to the position of the retraction groove 13. At this time, the four limit retaining pieces 5 can be respectively pressed towards the inside of the retraction groove 13 to make the limit retaining pieces 5 retract into the inside of the retraction groove 13. At this time, the tooth forming die 6 can be taken out from the inside of the forming groove 4, avoiding the situation that the tooth forming die 6 falls off simultaneously when the gear is demolded.

[0024] Compression springs 14 are all movably installed inside the retraction grooves 13. Wear-resistant pads are arranged on the surface of the limit retaining pieces 5 close to the compression springs 14, and the surfaces of the compression springs 14 are all attached to the wear-resistant pads on the surfaces of the limit retaining pieces 5.

[0025] A lifting groove 9 is arranged at the bottom end of the upper die 1, a lifting plate 10 is slidably installed inside the lifting groove 9, an adjusting die 12 is fixedly installed at the bottom end of the lifting plate 10, and a shaping groove 11 is arranged at the center of the bottom end of the lifting plate 10.

[0026] A shaping block 8 is fixedly installed at the position of the top of the lower die 2 inside the tooth forming die 6, the shaping block 8 is movably clamped into the inside of the shaping groove 11, and the adjusting die 12 is movably clamped into the inside between the tooth forming die 6 and the shaping block 8.

[0027] On the outer surface of the bottom end of the upper die 1, there are a plurality of spring grooves 16. The top ends of the positioning rods 15 are all slidably inserted into the inside of the spring grooves 16, and extrusion springs 17 are movably installed between the positioning rods 15 and the inside of the spring grooves 16.

[0028] Through the cooperation of the positioning rod 15 and the positioning hole 7, when the device is in use, it is necessary to align the positioning rod 15 with the position of the positioning hole 7. Only in this way can the upper die 1 and the lower die 2 be matched when the upper die 1 descends, avoiding the dislocation between the adjusting die 12 and the tooth forming die 6.

[0029] An electric push rod 3 is provided at the top end of the upper die 1. The output end of the electric push rod 3 is fixedly connected to the top end of the lifting plate 10. A scale is provided on the outer surface of the adjusting die 12.

[0030] Through the cooperation of the lifting groove 9 and the lifting plate 10, when the device is in use, the electric push rod 3 can be used to drive the lifting plate 10 to lift and lower. Thus, the distance between the adjusting die 12 and the inside of the bottom end of the upper die 1 can be adjusted according to the scale on the outer surface of the adjusting die 12. Furthermore, the distance that the adjusting die 12 can insert into the tooth forming die 6 can be adjusted, so that the device can produce gears of different thicknesses.

[0031] When this gear processing and forming die is in use, first align the positioning rod 15 with the position of the positioning hole 7. Only in this way can the upper die 1 and the lower die 2 be matched when the upper die 1 descends, avoiding the dislocation between the adjusting die 12 and the tooth forming die 6.

[0032] Subsequently, the electric push rod 3 is used to drive the lifting plate 10 to lift and lower. Thus, the distance between the adjusting die 12 and the inside of the bottom end of the upper die 1 can be adjusted according to the scale on the outer surface of the adjusting die 12. Furthermore, the distance that the adjusting die 12 can insert into the tooth forming die 6 can be adjusted, so that the device can produce gears of different thicknesses.

[0033] When forming the gear, first inject the forming material of the gear into the tooth forming die 6. Subsequently, lower the upper die 1 so that the upper die 1 and the lower die 2 are in contact. At this time, the adjusting die 12 is inserted into the tooth forming die 6 to maintain the thickness of the gear. Then, the casting liquid is cooled by the cooling equipment to complete the forming of the gear.

[0034] When different types of gears need to be produced, at this time, the tooth forming die 6 needs to be replaced. First, the limit flapper 5 can be rotated to make the four limit flappers 5 rotate to the position of the retraction groove 13. At this time, the four limit flappers 5 can be respectively pressed inward to the retraction groove 13, so that the limit flappers 5 retract into the inside of the retraction groove 13. At this time, the tooth forming die 6 can be taken out from the inside of the forming groove 4, so as to replace the type of the tooth forming die 6. Moreover, the tooth forming die 6 can be limited by the limit flapper 5 to avoid the situation that the tooth forming die 6 is taken out together with the gear when the gear is demolded.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A gear processing and forming die, including an upper die (1), and a lower die (2) is arranged below the upper die (1), characterized in that: The top surface of the lower die (2) is provided with a forming groove (4). An internally toothed forming die (6) is movably installed inside the forming groove (4). Four limiting flappers (5) are movably installed at the top of the toothed forming die (6). Four retraction grooves (13) are provided inside the forming groove (4). The limiting flappers (5) are all movably snapped into the inside of the retraction grooves (13). A plurality of positioning holes (7) are provided on the surface of the toothed forming die (6). A plurality of positioning rods (15) are movably installed at the bottom end of the upper die (1). The positioning rods (15) are all movably inserted into the inside of the positioning holes (7).

2. A gear processing and forming die according to claim 1, characterized in that: Compression springs (14) are all movably installed inside the retraction grooves (13). Wear-resistant pads are provided on the surface of one side of the limiting flappers (5) close to the compression springs (14). The surfaces of the compression springs (14) are all in contact with the wear-resistant pads on the surfaces of the limiting flappers (5).

3. A gear processing and forming die according to claim 1, characterized in that: A lifting groove (9) is provided at the bottom end of the upper die (1). A lifting plate (10) is slidably installed inside the lifting groove (9). An adjusting die (12) is fixedly installed at the bottom end of the lifting plate (10). A shaping groove (11) is provided at the center of the bottom end of the lifting plate (10).

4. A gear processing and forming die according to claim 3, characterized in that: A shaping block (8) is fixedly installed at the position of the top end of the lower die (2) inside the toothed forming die (6). The shaping block (8) is movably snapped into the inside of the shaping groove (11). The adjusting die (12) is movably snapped into the inside between the toothed forming die (6) and the shaping block (8).

5. A gear processing and forming die according to claim 1, characterized in that: A plurality of spring grooves (16) are provided on the outer surface of the bottom end of the upper die (1). The top ends of the positioning rods (15) are all slidably snapped into the inside of the spring grooves (16). Extrusion springs (17) are all movably installed between the positioning rods (15) and the inside of the spring grooves (16).

6. A gear processing and forming die according to claim 3, characterized in that: An electric push rod (3) is provided at the top end of the upper die (1). The output end of the electric push rod (3) is fixedly connected to the top end of the lifting plate (10). A scale is provided on the outer surface of the adjusting die (12).

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