A planetary gear shaft riveting tooling

Abstract

The present invention provides a riveting tooling for a planetary gear shaft, belonging to the field of planet carrier processing. The present invention includes a tooling body and a planet carrier placing base arranged above the tooling body. The planet carrier placing base can move vertically relative to the tooling body. The planet carrier placing base is further provided with a riveting hole corresponding to the position of the riveting position of the planetary gear shaft. A first punch is arranged on the tooling body below the riveting hole. The riveting tooling for the planetary gear shaft further includes a press for driving the planet carrier placing base to move vertically downward. A second punch corresponding to the first punch is arranged below the press. The first punch and the second punch cooperate to complete riveting. The beneficial effects of the present invention are: simple operation, simple structure and low cost.

Description

Technical Field

[0001] The present invention relates to a riveting tooling, and more particularly to a riveting tooling for a planetary gear shaft. Background Art

[0002] Currently, the tooling for press-fitting a planetary gear shaft has a complex structure, and there are problems such as poor coaxiality between the press head and the planetary gear shaft, complex operation, and long time consumption. Summary of the Invention

[0003] To solve the problems in the prior art, the present invention provides a riveting tooling for a planetary gear shaft.

[0004] The present invention includes a tooling body, a planetary carrier placement base disposed above the tooling body, the planetary carrier placement base being capable of moving vertically relative to the tooling body, and the planetary carrier placement base is further provided with a riveting hole corresponding to the position of the riveting position of the planetary gear shaft. A first press head is provided on the tooling body below the riveting hole. The riveting tooling for the planetary gear shaft further includes a press for driving the planetary carrier placement base to move vertically downward. A second press head corresponding to the first press head is provided below the press, and the first press head and the second press head cooperate to complete riveting.

[0005] The present invention is further improved in that the number of the riveting holes is multiple, and the number and position are consistent with the riveting positions on the planetary gear shaft.

[0006] The present invention is further improved in that the planetary carrier placement base is further provided with a base rotation handle for driving the planetary carrier placement base to rotate, and the tooling body is further provided with a limiting device for limiting the planetary carrier placement base.

[0007] The present invention is further improved in that the limiting device includes a base positioning pin provided on the tooling body, a base positioning pin movable handle for driving the base positioning pin to move downward, and a second spring provided below the base positioning pin movable handle. A positioning hole for engaging with the base positioning pin is further provided on the bottom surface of the planetary carrier placement base. When the base positioning pin movable handle is pressed down, the second spring is compressed, and the base positioning pin disengages from the positioning hole, and the planetary carrier placement base can rotate.

[0008] The present invention is further improved in that a positioning pin for positioning the planetary carrier is further provided above the planetary carrier placement base.

[0009] The present invention is further improved in that the tooling body is provided with a mounting shaft connected to the planetary carrier placement base, and a first spring is provided inside the mounting shaft. When the press is pressed down, the first spring is compressed and deformed, driving the planetary carrier placement base to move downward.

[0010] The present invention is further improved in that the press is driven manually, electrically, pneumatically or hydraulically.

[0011] The present invention is further improved, and the press is a manual rocker arm press.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: simple structure, convenient operation, and can achieve rapid positioning of the rotating base; the tooling positioning pins and the pressing head adopt a quick-change form, realizing rapid maintenance and replacement of vulnerable parts; without changing the position of the pressing head, the planetary gear shaft can be quickly moved under the pressing head through the rotating base; the coaxiality between the pressing head and the planetary gear shaft is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 and Figure 2 is a schematic structural diagram of the tooling body of the present invention;

[0014] Figure 3 is Figure 2 A - A sectional view;

[0015] Figure 4 is a schematic structural diagram after the planet carrier is installed according to the present invention;

[0016] Figure 5 is a schematic structural diagram of an embodiment of the press. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0018] As Figures 1 - 5 shown, the present invention includes a tooling body, a planet carrier placing base 3 arranged above the tooling body. The planet carrier placing base 3 can move vertically relative to the tooling body. There are also 3 riveting holes corresponding to the positions of 3 riveting positions of the planetary gear shaft on the planet carrier placing base 3, which are evenly distributed on the planet carrier placing base 3. A first pressing head 5 is arranged on the tooling body below one of the riveting holes. The planetary gear shaft riveting tooling further includes a press 9 for driving the planet carrier placing base 3 to move vertically downward. A pressing block 10 corresponding to the first pressing head 5 is arranged below the press 9, and a second pressing head is arranged below the pressing block 10. The first pressing head 5 and the second pressing head cooperate to complete the riveting of the riveting position. The press 9 in this example can be manually, electrically, pneumatically or hydraulically driven. For more convenient and flexible operation, the press 9 in this example is a manual rocker arm press with a pressure rod.

[0019] Since there are 3 riveting holes in the planet carrier 8 in this example, in order to achieve one-time processing, a base rotation handle 1 for driving the planet carrier placing base to rotate is further arranged on the planet carrier placing base 3, and a limiting device for limiting the planet carrier placing base is also arranged on the tooling body.

[0020] As an embodiment of the present invention, the limiting device includes a base positioning pin 6 provided on the tooling body, a base positioning pin movable handle 4 for driving the base positioning pin 6 to move downward, and a second spring 7 provided below the base positioning pin movable handle 4. A positioning hole for engaging with the base positioning pin 6 is further provided on the bottom surface of the planet carrier placing base 3. When the base positioning pin movable handle 4 is pressed down, the second spring 7 is compressed, and the base positioning pin 6 disengages from the positioning hole, and the planet carrier placing base 3 can rotate under the action of the base rotating handle 1.

[0021] In order to better position the planet carrier 8 and also prevent the planet carrier 8 from shifting when the planet carrier placing base 3 rotates, a positioning pin 2 for positioning the planet carrier is further provided above the planet carrier placing base 3 in this example.

[0022] Preferably, an installation shaft connected to the planet carrier placing base 3 is provided on the tooling body, and a first spring 11 is provided inside the installation shaft. When the press is pressed down, the first spring 11 is compressed and deformed, driving the planet carrier placing base to move downward.

[0023] The working principle of the present invention is as follows:

[0024] Place the planet carrier 8 with the planet gear shaft and planet gears installed on the planet carrier placing base 3 of the tooling. Use a rocker press to press down. After the second punch contacts the planet gear shaft, it drives the planet carrier 8 and the planet carrier placing base 3 to descend together until the lower end of the planet gear shaft contacts the first punch 5. The upper and lower punches together squeeze the planet gear shaft to complete the riveting process of 1 planet gear shaft.

[0025] After that, press the base positioning pin movable handle 4, use the base rotating handle 1 to rotate the base clockwise and release the base positioning pin movable handle 4. After rotating 120 degrees, the base positioning pin 6 will automatically pop out under the action of the second spring 7 and get stuck in the positioning hole on the base. At this time, rivet the second planet gear shaft. Then, rivet the third planet gear shaft in this way.

[0026] Compared with the prior art, the present invention has a simple structure and convenient operation, and can achieve rapid positioning of the rotating base; the tooling positioning pins and punches adopt a quick-change form to realize rapid maintenance and replacement of vulnerable parts; without changing the position of the punch, the planet gear shaft can be quickly moved under the punch by rotating the base; the coaxiality between the punch and the planet gear shaft is good.

[0027] The above specific implementation manners are the preferred implementation manners of the present invention, and do not limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A planetary gear shaft riveting tooling, characterized in that: It includes a tooling body and a planet carrier placing base arranged above the tooling body. The planet carrier placing base can move vertically relative to the tooling body. There are also riveting holes on the planet carrier placing base corresponding to the positions of the riveting positions of the planetary gear shafts. A first punch is arranged on the tooling body below the riveting holes. The planetary gear shaft riveting tooling further includes a press for driving the planet carrier placing base to move vertically downward. A second punch corresponding to the first punch is arranged below the press. The first punch and the second punch cooperate to complete the riveting. There is also a positioning pin for positioning the planet carrier arranged above the planet carrier placing base. The number of the riveting holes is multiple, and their number and positions are the same as those of the riveting positions on the planetary gear shafts. There is also a base rotation handle for driving the planet carrier placing base to rotate on the planet carrier placing base. There is also a limiting device for limiting the planet carrier placing base arranged on the tooling body. The limiting device includes a base positioning pin arranged on the tooling body, a base positioning pin movable handle for driving the base positioning pin to move downward, and a second spring arranged below the base positioning pin movable handle. There is also a positioning hole for clamping with the base positioning pin arranged on the bottom surface of the planet carrier placing base. When the base positioning pin movable handle is pressed down, the second spring is compressed, and the base positioning pin disengages from the positioning hole, and the planet carrier placing base can rotate.

2. The planetary gear shaft riveting tooling according to claim 1, wherein: There is an installation shaft connected to the planet carrier placing base arranged on the tooling body. A first spring is arranged inside the installation shaft. When the press presses down, the first spring is compressed and deformed to drive the planet carrier placing base to move downward.

3. The planetary gear shaft riveting tooling according to claim 2, characterized in that: The press is driven manually, electrically, pneumatically or hydraulically.

4. The planetary gear shaft riveting tooling according to claim 3, wherein: The press is a manual rocker press.

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