Planetary gear disc and shaft assembling device

Abstract

The utility model discloses a planetary gear disc and shaft assembling device, which comprises a lower die, an upper die, an upper die, a lower die, an upper die, an upper die and a lower die, and is characterized in that the lower die is provided with a positioning groove and a pin hole; the upper die is used for punching a pin towards the lower die; the pop-up mechanism comprises an elastic assembly and a positioning column, the elastic assembly is arranged in the pin hole, the positioning column is connected with one end of the elastic assembly, the positioning column comprises a step part, and the pin hole comprises a limiting part matched with the step part so as to limit the positioning column to be separated from the pin hole; wherein the elastic assembly has a natural state and a compressed state; when the elastic assembly is in a natural state, at least part of the positioning column is located outside the pin hole under the action of the elastic assembly; when the elastic assembly is in a compressed state, the positioning column completely retracts into the pin hole. By means of the structure, the wheel disc can be positioned and popped out in the assembling process through the elastic mechanisms arranged in the pin holes, and the assembling efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to an assembly mold, in particular to a planetary gear disc and shaft assembly device. Background Art

[0002] The description of this part only provides background information related to the disclosure of the utility model, and does not constitute the prior art.

[0003] A planetary gear is a special gear transmission mechanism, in which one or more external teeth rotate around a central tooth on a disc, just like a planet orbiting the sun, so it gets its name. The multiple external teeth drive a large external gear ring to rotate through common rotation. Through the above planetary gear structure, it has the characteristics of large transmission ratio, compactness and high efficiency, and a large transmission ratio can be obtained through a few gears.

[0004] When installing the planetary gear, it is necessary to install the external teeth onto the disc, and it is necessary to pre-install the pins corresponding to the external teeth on the disc. The pins are small in size and the disc is thin in thickness. The existing installation of pins often fails to meet the accuracy requirements, and there are often situations where the pins are over-installed and protrude to the other side of the disc, affecting the yield rate. At the same time, after installing the pins, it is also difficult to take out the disc, significantly affecting the assembly output.

[0005] At present, there is no planetary gear disc and shaft assembly device that can solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a planetary gear disc and shaft assembly device, which can realize the positioning and ejection of the disc during the assembly process through an elastic mechanism arranged in the pin hole, significantly improving the assembly efficiency.

[0007] To achieve the above purpose, the utility model discloses a planetary gear disc and shaft assembly device for installing pins on a disc. Wherein, through holes for passing through the pins are provided on the disc, and a convex central tooth is provided on one side of the disc. The planetary gear disc and shaft assembly device includes:

[0008] A lower die, which is provided with a positioning groove and a pin hole. The positioning groove is used for placing the disc, and the pin hole is arranged in the positioning groove;

[0009] An upper die, which is used for stamping the pin towards the lower die;

[0010] Ejecting mechanism, the ejecting mechanism includes an elastic component and a positioning post. The elastic component is arranged in the pin hole. The positioning post is connected to one end of the elastic component, and the positioning post is arranged on the side of the elastic component facing outside the pin hole. The positioning post includes a stepped portion, and the pin hole includes a limiting portion matching the stepped portion to limit the positioning post from detaching from the pin hole;

[0011] Wherein, the elastic component has a natural state and a compressed state; when the elastic component is in the natural state, at least part of the positioning post is located outside the pin hole under the action of the elastic component; when the elastic component is in the compressed state, the positioning post completely retracts into the pin hole. Further,

[0012] Further, the lower die further includes a relief groove, the relief groove is arranged in the positioning groove, the size of the relief groove matches the center tooth, and the relief groove is used for accommodating the center tooth.

[0013] Further, a gasket is further included. When the upper die punches the lower die, the gasket is used to be placed on one side of the lower die. The gasket includes a gasket hole for placing the pin. After at least part of the pin is placed in the gasket hole, it protrudes outside the gasket hole along the direction of the upper die.

[0014] Further, the gasket has a preset thickness, so that the length of the pin protruding outside the gasket hole matches the depth dimension of the through hole, so that after the upper die completely punches the pin, one end of the pin is just installed into the through hole, and the pin will not protrude to the other side of the through hole.

[0015] Further, the number of the pins is multiple, and the lower die includes a plurality of pin holes matching the number and positions of the multiple pins.

[0016] Further, the upper die includes a stamping plate, and the stamping plate is detachably connected to the side of the upper die facing the lower die.

[0017] Further, internal threads are also provided on the side of the upper die facing the lower die, and the stamping plate is fixed on one side of the upper die through a fastener passing through the stamping plate and the internal threads.

[0018] Further, the thickness of the positioning groove matches the thickness dimension of the disk.

[0019] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0020] 1. The planetary gear disc and shaft assembly device of the present utility model can be provided with a pop-up mechanism in the pin hole of the lower die. When the pop-up mechanism is in a natural state, the pop-up mechanism can push the positioning post out of the pin hole. At this time, the positioning post can be used for precision positioning of the placed disc. When the upper die punches the pin on the lower die, the pop-up mechanism can retract into the pin hole under pressure. After the punching is completed, the pop-up mechanism can push the installed disc out of the positioning groove. The whole process is convenient and fast, and has high positioning accuracy.

[0021] 2. The planetary gear disc and shaft assembly device of the present utility model is provided with a gasket with a preset thickness, so that after the upper die punches the pin, the pin is punched to a specified depth, which can improve the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic diagram of placing a disc of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0024] Figure 2 is a schematic diagram of placing a gasket of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0025] Figure 3 is a schematic diagram of placing a pin of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0026] Figure 4 is a schematic diagram of closing the mold of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0027] Figure 5 is a schematic diagram of ejecting the disc and the pin of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0028] Figure 6 is a schematic diagram of the disc and the pin of a planetary gear disc and shaft assembly device provided by an embodiment of this specification;

[0029] In the figure: 100, roulette wheel; 101, through hole; 200, pin; 300, central tooth; 1, lower die; 11, positioning groove; 12, pin hole; 13, relief groove; 2, upper die; 21, internal thread; 3, ejection mechanism; 31, elastic component; 32, positioning post; 4, gasket; 41, gasket hole; 5, stamping plate; 6, fastener. Detailed implementation manners

[0030] In order to enable those skilled in the art of this technology to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification with reference to the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this specification.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "middle", "lower", "inner", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following will describe its implementation manners according to the overall structure of the present utility model.

[0032] Please refer to Figure 1-6 , a planetary gear disk and shaft assembly device for this embodiment; used to install the pin 200 on the roulette wheel 100. Among them, the roulette wheel 100 is provided with a through hole 101 for passing through the pin 200, and one side of the roulette wheel 100 is provided with an outwardly convex central tooth 300; among them, the planetary gear disk and shaft assembly device includes:

[0033] The lower die 1, the lower die 1 is provided with a positioning groove 11 and a pin hole 12. The positioning groove 11 is used for placing the roulette wheel 100, and the pin hole 12 is arranged in the positioning groove 11;

[0034] The upper die 2, the upper die 2 is used to punch the pin 200 in the direction of the lower die 1;

[0035] The ejection mechanism 3, the ejection mechanism 3 includes an elastic component 31 and a positioning post 32. The elastic component 31 is arranged in the pin hole 12. The positioning post 32 is connected to one end of the elastic component 31, and the positioning post 31 is arranged on the side of the elastic component 32 facing outside the pin hole 12. The positioning post 32 includes a stepped portion, and the pin hole 12 includes a limiting portion matching the stepped portion to limit the positioning post 32 from detaching from the pin hole 12.

[0036] Wherein, the elastic component 31 has a natural state and a compressed state; when the elastic component 31 is in the natural state, at least part of the positioning post 32 is outside the pin hole 12 under the action of the elastic component 31; when the elastic component 31 is in the compressed state, the positioning post 32 is completely retracted into the pin hole 12.

[0037] With the above structure, during use, the operator first places the wheel disc 100 at the position of the positioning groove 11 of the lower die 1. At this time, the elastic component 31 in the ejection mechanism 3 is in a relaxed natural state, and at least part of the positioning post 32 is pushed out of the pin hole 12 by the elastic component 31. Therefore, when the wheel disc 100 is placed, the through hole 101 of the wheel disc 100 is aligned with the positioning post 32 pushed out of the pin hole 12 at the same time; then, the pin 200 to be assembled is placed or aligned at the corresponding position at the through hole 101 through an external tool, and then the upper die 2 is started to press downward in the direction of the pin 200 of the lower die 1; during pressing, one end of the pin 200 is pressed into the through hole 101, and at the same time the elastic component 31 in the ejection mechanism 3 is compressed until one end of the pin 200 is completely pressed into the through hole 101, and an interference fit with a preset strength is formed between the pin 200 and the through hole 101 of the wheel disc 100. At this time, the elastic component 31 of the ejection mechanism 3 is in a compressed state; then, the upper die 2 is retracted. At this time, with the compression force of the elastic component 31, the pin 200 on the wheel disc 100 is ejected by the positioning post 32 at one end of the elastic component 31, and the wheel disc 100 is detached from the positioning groove 11 of the lower die 1, and it is convenient for the operator to quickly transfer the detached combined state of the wheel disc 100 and the pin 200. Thus, the assembly operation of the wheel disc 100 and the pin 200 in this process is completed.

[0038] During the above-mentioned use process, with the positioning post 32 extending out of the pin hole 12 in the ejection mechanism 3, the calibration work for positioning the disk 100 can be achieved during the placement process of the disk 100. Compared with the existing ordinary fixture that applies pressure to push for calibration, the calibration in this embodiment is achieved by aligning with the position of the through hole 101, and the positioning is more accurate. At the same time, after the lower die 1 and the upper die 2 complete stamping and the upper die 2 retracts, the elastic component 31 in the ejection mechanism 3 can change from the compressed state to the natural state, enabling the disk 100 after installation to quickly disengage from the positioning groove 11, facilitating the next operation after picking up. That is to say, in this embodiment, by means of the combined setting of the ejection mechanism 3 and the pin hole 12, the positioning and ejection of the disk 100 are simultaneously achieved through the above simple structure, which can significantly improve the assembly efficiency.

[0039] Further, as Figure 1 shown, the lower die further includes a relief groove 13, the relief groove 13 is arranged in the positioning groove 11, the size of the relief groove 13 matches that of the central tooth 300, and the relief groove 13 is used for accommodating the central tooth 300. That is to say, in this embodiment, the lower die 1 leaves sufficient relief space for the central tooth 300 to avoid bumping the central tooth 300 during the stamping process and affecting the yield rate. At the same time, the size of the relief groove 13 is significantly larger than that of the central tooth 300, which also enables the lower die 1 of this embodiment to be applicable to the processing of parts with various different sizes of central teeth 300.

[0040] Further, as Figure 2 shown, it further includes a gasket 4. When the upper die 2 stamps the lower die 1, the gasket 4 is used to be placed on one side of the lower die 1. The gasket 4 includes a gasket hole 41 for placing the pin 200. After at least part of the pin 200 is placed in the gasket hole 41, it protrudes out of the gasket hole 41 along the direction of the upper die 2. At the same time, the gasket 4 has a preset thickness so that the length of the pin 200 protruding out of the gasket hole 41 matches the depth dimension of the through hole 101, so that after the upper die 2 completely stamps the pin 200, one end of the pin 200 is just installed into the through hole 101, and the pin 200 does not protrude to the other side of the through hole 101. Through the above structure, after placing the disk 100 on the positioning groove 11 in step 1, the gasket 4 with a size matching the side of the lower die 1 facing the upper die 2 can be placed on the lower die 1 with the disk 100 placed thereon. At this time, the gasket 4 is in contact with the disk 100 on the bottom side of the gasket 4, and then in step 3, the pin 200 is pre-placed in the gasket hole 41 of the gasket 4, and the pin 200 passes through the gasket hole 41 with a diameter matching it, so that the pin 200 has better stability during subsequent stamping. At the same time, the gasket 4 and the lower die 1 remain stationary all the time. Therefore, with the help of the gasket 4 with a preset thickness, the pin 200 can be quickly stamped to the specified depth through direct high-strength stamping, and the pin 200 protruding out of the gasket hole 41 is just completely stamped flush with the gasket 4, with high efficiency.

[0041] Specifically, the holding pressure of the upper die 2 for the stamping strength is 6 tons, which has a better effect in this embodiment.

[0042] Furthermore, the number of the pins 200 is multiple, and the lower die 1 includes a plurality of pin holes 12 that match the number and positions of the multiple pins 200. In this embodiment, the number of the pins 200 is 4, and the simultaneous assembly of 4 pins 200 into the corresponding 4 through holes 101 of the wheel disc 100 can be achieved in one stamping.

[0043] Furthermore, the upper die 2 includes a stamping plate 5, and the stamping plate 5 is detachably connected to one side of the upper die 2 facing the lower die 1. And an internal thread 21 is further provided on one side of the upper die 2 facing the lower die 1, and the stamping plate 5 is fixed to one side of the upper die 2 through a fastener passing through the stamping plate 5 and the internal thread 21. In this embodiment, due to the large stamping strength and high working efficiency, the upper die 2 with the main stamping surface is easily worn. Through the arrangement of the stamping plate 5, after a certain working cycle, the worn stamping plate 5 that is difficult to meet the use requirements can be replaced. The stamping plate 5 is detachably mechanically connected to the upper die 2 through fasteners, and the operator can quickly replace it with common tools, so as to improve the convenience of maintenance.

[0044] Furthermore, in this embodiment, the thickness of the positioning groove 11 matches the thickness dimension of the wheel disc 100, that is to say, after the wheel disc 100 is placed in the positioning groove 11, it does not protrude outside the positioning groove 11 or sink into the positioning groove 11, so as to avoid the reduction of the stamping accuracy caused by the upper die 2 being blocked by other positions of the lower die 1 except the positioning groove 11 accidentally.

[0045] Although different specific embodiments are mentioned in the content of this application, however, this application is not limited to the situations described by industry standards or embodiments. Some industry standards or implementation schemes slightly modified on the basis of the implementation described by the custom method or embodiment can also achieve the same, equivalent or similar, or predictable implementation effects as the above embodiments. The embodiments applying these modified or deformed data acquisition, processing, output, judgment methods, etc. still fall within the scope of the optional implementation schemes of this application.

[0046] Although this application is depicted through embodiments, those of ordinary skill in the art know that this application has many deformations and changes without departing from the spirit of this application. It is hoped that the attached embodiments include these deformations and changes without departing from this application.

Claims

1. A planetary gear disc and shaft assembly device for mounting a pin on a wheel disc, wherein: The wheel disc is provided with a through hole for inserting the pin, and one side of the wheel disc is provided with a protruding central tooth; it is characterized in that the planetary gear disc and shaft assembly device comprises: A lower die, wherein the lower die is provided with a positioning groove and a pin hole, the positioning groove is used for placing the wheel disc, and the pin hole is arranged in the positioning groove; An upper die, the upper die being used for punching the pin in the direction of the lower die; A pop-up mechanism, the pop-up mechanism comprising an elastic component and a positioning column, the elastic component is arranged in the pin hole, the positioning column is connected to one end of the elastic component, and the positioning column is arranged on a side of the elastic component facing outside the pin hole, the positioning column comprises a step portion, and the pin hole comprises a limiting portion matching the step portion to limit the detachment of the positioning column from the pin hole; Wherein, the elastic component has a natural state and a compressed state; when the elastic component is in the natural state, at least part of the positioning column is located outside the pin hole under the action of the elastic component; when the elastic component is in the compressed state, the positioning column is completely retracted into the pin hole.

2. The planetary gear plate and shaft assembly device according to claim 1, characterized in that: The lower die also includes a clearance groove, which is arranged in the positioning groove. The size of the clearance groove matches the center tooth, and the clearance groove is used to accommodate the center tooth.

3. The planetary gear plate and shaft assembly device according to claim 1, characterized in that: It also includes a gasket, which is used to be placed on one side of the lower die when the upper die is stamping the lower die. The gasket includes a gasket hole for placing the pin. After at least part of the pin is placed in the gasket hole, it protrudes out of the gasket hole along the direction of the upper die.

4. The planetary gear plate and shaft assembly device according to claim 3, characterized in that: The gasket has a preset thickness so that the length of the pin protruding from the gasket hole matches the depth dimension of the through hole, so that after the upper mold fully punches the pin, one end of the pin is just installed in the through hole, and the pin will not protrude to the other side of the through hole.

5. The planetary gear plate and shaft assembly device according to claim 1, characterized in that: The number of the pins is multiple, and the lower mold includes multiple pin holes that match the number and positions of the multiple pins.

6. The planetary gear plate and shaft assembly device according to claim 1, characterized in that: The upper die includes a punching plate, and the punching plate is detachably connected to a side of the upper die facing the lower die.

7. The planetary gear plate and shaft assembly device according to claim 6, characterized in that: The upper die is also provided with an internal thread on one side facing the lower die, and the stamping plate is fixed to one side of the upper die by a fastener penetrating through the stamping plate and the internal thread.

8. The planetary gear plate and shaft assembly device according to claim 1, characterized in that: The thickness of the positioning groove matches the thickness of the wheel disc.

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