Die assembly facilitating installation of gear device

Abstract

The utility model relates to a die assembly, in particular to a die assembly convenient to install a gear device, which comprises an upper die and a lower die which are used for being installed on a stamping station, and a cavity for placing a first gear structure and a second gear structure is arranged between the upper die and the lower die. The upper die is used for fixing a first gear structure, the lower die is used for fixing a second gear structure, a limiting sleeve used for fixing the first gear structure is arranged in the lower die, and a gear pressing shaft die used for fixing the second gear structure and matched with a stamping mechanism is arranged on the upper die. The upper gear and the lower gear are limited through the upper die and the lower die, the gear pressing shaft die moving in a reciprocating mode is arranged on the upper portion of the upper die, the gear pressing shaft die cannot incline any more in the pressing process, the product yield is improved, meanwhile, the operation safety is improved, and the gear pressing device further has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

Description

Technical Field

[0001] This utility model relates to a mold assembly, and more particularly to a mold assembly that facilitates the installation of gear devices. Background Technology

[0002] Some gear assemblies are typically formed by pressing internal and external gears together. These pressing operations are generally performed by a stamping mechanism. However, the mold assemblies used for pressing gear assemblies on the market only have a base, on which two gears are placed. The upper gear is held by hand to allow the stamping mechanism to operate, which poses certain safety hazards. During the pressing process, the upper gear is prone to tilting, resulting in a decrease in yield. For example, the patent with announcement number CN218746028U, entitled "A Gear Shaft and Gear Plate Pressing and Fixing Device", is such a case. How to improve the pressing safety of gears and increase the yield is a technical problem that we need to solve now. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mold assembly that facilitates the installation of gear devices.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a mold assembly for convenient installation of a gear device, characterized in that it includes an upper mold and a lower mold for installation at a stamping station, a cavity for inserting a first gear structure and a second gear structure between the upper mold and the lower mold, a limiting sleeve for fixing the first gear structure in the lower mold, a pressing shaft mold for fixing the second gear structure and cooperating with the stamping mechanism on the upper mold, and a limiting hole for reciprocating motion of the pressing shaft mold on the upper mold, wherein the first gear structure and the second gear structure achieve pressing operation in the cavity through the cooperation of the pressing shaft mold and the stamping mechanism.

[0005] The bottom of the pressing shaft mold is provided with a groove for fixing the second gear structure, and the top of the second gear structure is limited by being inserted into the groove.

[0006] The top of the pressing tooth mold is provided with a boss to prevent the pressing tooth mold from falling into the cavity. The pressing tooth mold achieves a limited reciprocating motion on the upper mold through the cooperation of the boss.

[0007] The lower mold is provided with a slot for fixing the limiting sleeve. The limiting sleeve is fixed on the lower mold by being inserted into the slot.

[0008] The limiting sleeve is provided with a limiting groove for fixing the first gear structure. The first gear structure is limited on the limiting sleeve by being inserted into the limiting groove.

[0009] The upper mold has a viewing window on its side for easy observation of the interior of the cavity.

[0010] The lower mold is provided with a guide groove that matches the lower edge of the upper mold. The guide groove extends around the edge of the lower mold, and the upper mold and the lower mold are connected by the matching of the lower edge of the upper mold and the guide groove.

[0011] The lower mold has a positioning post at its bottom center.

[0012] The positioning column has a mounting hole that matches the first gear structure, and the limiting sleeve has a through hole that matches the mounting hole.

[0013] The beneficial effects of this utility model are as follows: This utility model designs a set of mold components, namely an upper mold and a lower mold. The lower mold is used to fix the lower gear, and the upper mold is used to limit the upper gear. The upper and lower molds limit the upper and lower gears. The upper part of the upper mold is provided with a reciprocating pressing shaft mold, which will not tilt during the pressing process, thus improving the product yield and improving the operational safety. This utility model also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the present invention before the pressing operation;

[0017] Figure 4 This is a cross-sectional view of the present invention after the pressing operation.

[0018] In the diagram: 100, upper mold; 200, lower mold; 300, first gear structure; 400, second gear structure; 110, cavity; 210, limiting sleeve; 500, pressure shaft mold; 120, limiting hole; 510, groove; 520, boss; 220, slot; 211, limiting groove; 130, viewing window; 230, guide groove; 240, positioning post; 241, mounting hole. Detailed Implementation

[0019] like Figures 1-4As shown, a mold assembly for convenient installation of a gear device includes an upper mold 100 and a lower mold 200 for installation at a stamping station. A cavity 110 is provided between the upper mold 100 and the lower mold 200 for inserting a first gear structure 300 and a second gear structure 400. A limiting sleeve 210 for fixing the first gear structure 300 is provided inside the lower mold 200. A pressing shaft mold 500 for fixing the second gear structure 400 and cooperating with a stamping mechanism is provided on the upper mold 100. A limiting hole 120 is provided on the upper mold 100 for reciprocating movement of the pressing shaft mold 500. The first gear structure 300 and the second gear structure 400 achieve pressing operations within the cavity 110 through the cooperation of the pressing shaft mold 500 and the stamping mechanism. The cross-sections of the upper mold 100 and the lower mold 200 can be designed to be circular. The pressing operation refers to pressing the second gear structure 400 into the first gear structure 300.

[0020] The bottom of the pressing shaft mold 500 is provided with a groove 510 for fixing the second gear structure 400. The top of the second gear structure 400 is limited by being inserted into the groove 510. The groove 510 is mainly used to fit the top of the second gear structure 400. During the pressing process, the bottom of the pressing shaft mold 500 is always pressed against the step position of the second gear structure 400 to press the second gear structure 400 towards the first gear structure 300.

[0021] The top of the pressing tooth shaft mold 500 is provided with a boss 520 to prevent the pressing tooth shaft mold 500 from falling into the cavity 110. The pressing tooth shaft mold 500 achieves a limited reciprocating motion on the upper mold 100 through the cooperation of the boss 520. The addition of the boss 520 is to prevent the pressing tooth shaft mold 500 from falling into the upper mold 100, and at the same time, it also serves as the stroke for the reciprocating motion of the pressing tooth shaft mold 500.

[0022] The lower mold 200 is provided with a slot 220 for fixing the limiting sleeve 210. The limiting sleeve 210 is fixed on the lower mold 200 by being inserted into the slot 220.

[0023] The limiting sleeve 210 is provided with a limiting groove 211 for fixing the first gear structure 300. The first gear structure 300 is limited on the limiting sleeve 210 by being inserted into the limiting groove 211. The first gear structure 300 is fitted into the limiting groove 211.

[0024] The upper mold 100 is provided with a viewing window 130 on its side for easy observation of the interior of the chamber 110. The addition of the viewing window 130 makes it easy to observe the pressing operation.

[0025] The lower mold 200 is provided with a guide groove 230 that matches the lower edge of the upper mold 100. The guide groove 230 extends around the edge of the lower mold 200. The upper mold 100 and the lower mold 200 are connected by the lower edge of the upper mold 100 and the guide groove 230. Although the upper mold 100 and the lower mold 200 are connected, there is a certain tolerance, which allows the upper mold 100 and the lower mold 200 to rotate and cooperate, making it convenient to rotate the position of the viewing window 130 of the upper mold 100.

[0026] The lower mold 200 has a positioning post 240 at the bottom center. The lower mold 200 also has a base at the bottom. The positioning post 240 is mainly used to limit the movement between the lower mold 200 and the base.

[0027] The positioning post 240 is provided with a mounting hole 241 that matches the first gear structure 300. The limiting sleeve 210 is provided with a through hole 212 that matches the mounting hole 241. Some second gear structures 400 have very long shafts. The mounting hole 241 is added to accommodate the shafts and facilitates pressing.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A mold assembly for convenient installation of gear devices, characterized in that, The device includes an upper die (100) and a lower die (200) for installation at a stamping station. Between the upper die (100) and the lower die (200) is a cavity (110) for inserting a first gear structure (300) and a second gear structure (400). The lower die (200) is provided with a limiting sleeve (210) for fixing the first gear structure (300). The upper die (100) is provided with a pressing shaft die (500) for fixing the second gear structure (400) and cooperating with the stamping mechanism. The upper die (100) is provided with a limiting hole (120) for reciprocating motion of the pressing shaft die (500). The first gear structure (300) and the second gear structure (400) achieve pressing operation in the cavity (110) through the cooperation of the pressing shaft die (500) and the stamping mechanism.

2. The mold assembly for convenient installation of a gear device as described in claim 1, characterized in that, The bottom of the pressure shaft mold (500) is provided with a groove (510) for fixing the second gear structure (400), and the top of the second gear structure (400) is limited by being inserted into the groove (510).

3. The mold assembly for convenient installation of a gear device as described in claim 2, characterized in that, The top of the pressing tooth shaft mold (500) is provided with a boss (520) to prevent the pressing tooth shaft mold (500) from falling into the cavity (110). The pressing tooth shaft mold (500) achieves limited reciprocating motion on the upper mold (100) through the cooperation of the boss (520).

4. The mold assembly for convenient installation of a gear device as described in claim 1, characterized in that, The lower mold (200) is provided with a slot (220) for fixing the limiting sleeve (210). The limiting sleeve (210) is limited on the lower mold (200) by being inserted into the slot (220).

5. The mold assembly for convenient installation of a gear device as described in claim 4, characterized in that, The limiting sleeve (210) is provided with a limiting groove (211) for fixing the first gear structure (300). The first gear structure (300) is limited on the limiting sleeve (210) by being inserted into the limiting groove (211).

6. The mold assembly for convenient installation of a gear device as described in claim 1, characterized in that, The upper mold (100) is provided with a viewing window (130) on its side for easy observation of the interior of the chamber (110).

7. The mold assembly for convenient installation of a gear device as described in claim 1, characterized in that, The lower mold (200) is provided with a guide groove (230) that matches the lower edge of the upper mold (100). The guide groove (230) extends around the edge of the lower mold (200). The upper mold (100) and the lower mold (200) are connected by the matching of the lower edge of the upper mold (100) and the guide groove (230).

8. A mold assembly for convenient installation of a gear device as described in any one of claims 1 to 7, characterized in that, The lower mold (200) has a positioning post (240) at the bottom center.

9. A mold assembly for convenient installation of a gear device as described in claim 8, characterized in that, The positioning post (240) is provided with a mounting hole (241) that mates with the first gear structure (300), and the limiting sleeve (210) is provided with a through hole (212) that mates with the mounting hole (241).

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