AU2012100654A4

AU2012100654A4 - Auxiliary Device for Pressing Planet carrier Wheel Axle

Info

Publication number: AU2012100654A4
Application number: AU2012100654A
Authority: AU
Inventors: Xiaowei Ge
Original assignee: Hengdian Group Linix Motor Co Ltd
Current assignee: Hengdian Group Linix Motor Co Ltd
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2012-08-30
Anticipated expiration: 2020-05-16

Abstract

Title: Auxiliary Device for Pressing Planet carrier Wheel Axle Abstract The invention discloses an auxiliary device for pressing a planet carrier wheel axle, which comprises a fixed seat, wherein an unithreaded hole for penetrating and arranging a planet carrier rotating shaft is arranged in the fixed seat, a placing groove for placing a fixing disc of the planet carrier wheel axle is arranged above the unthreaded hole, a positioning structure for positioning a wheel axle fixing hole on a planet carrier is arranged on the bottom end surface of the placing groove, and a positioning disc which is matched with the positioning structure for positioning the wheel axle is further arranged in the placing groove. The invention is simple in structure and convenient to use, and can ensure the verticality of the wheel axle relative to the end surface of the planet carrier, complete the processing once, reduce the difficulty in operation of a worker, improve the production efficiency and improve the product quality. _4 11" -131 - 13 12___ 132 --- 5 - 131 -- 13 FIG. 2 FIG. 3

Description

Description Auxiliary Device for Pressing Planet carrier Wheel Axle Technical Field The invention relates to a manufacturing tooling of a small planet carrier, in particular to an auxiliary device for pressing a planet carrier wheel axle. Background of the Invention Small planet carriers, in particular to multi-stage planet carriers need to be used in some small mechanical products; as the parts are too small, planet carrier wheel axles and the planet carriers are very inconvenient to process together, and the process requirements are very difficult to achieve, the planet carriers and the wheel axles are mostly separated for processing, and then the wheel axles are fixed onto the planet carriers. When the wheel axles are fixed, the wheel axles are required to have a certain verticality relative to the end surfaces of the planet carriers, and the factors which may cause the deflection of the wheel axles during the fixing process of the wheel axles need to be avoided, thereby enabling the finally produced planet carrier finished products to meet the process requirements. Summary of the Invention The problem to be solved by the invention is to provide an auxiliary device for pressing a planet carrier wheel axle, which is simple in structure and convenient to use, and can ensure the verticality of the wheel axle relative to the end surface of a planet carrier, complete the processing once, reduce the difficulty in operation of a worker, improve the production efficiency and improve the product quality. In order to solve the technical problem, the invention adopts the following technical scheme: the auxiliary device for pressing the planet carrier wheel axle is characterized by comprising a fixed seat, an unthreaded hole for penetrating and arranging a planet carrier rotating shaft is arranged in the fixed seat, a placing groove for placing a fixing disc of the planet carrier wheel axle is arranged above the unthreaded hole, a positioning structure for positioning a wheel axle fixing hole on a planet carrier is arranged on the bottom end surface of the placing groove, and a positioning disc which is matched with the positioning structure for positioning the wheel axle is further arranged in the placing groove. Further, the bottom end surface of the placing groove is horizontally arranged, the positioning structure comprises at least one positioning hole which is vertically arranged on the bottom end surface of the placing groove and a positioning shaft arranged in the positioning hole for moving up and down, the positioning shaft corresponds to the wheel axle fixing hole on the planet carrier, and an elastic part for pushing the positioning shaft upwards is further arranged below the positioning shaft 1 in the positioning hole. Further, the positioning shaft is in clearance fit with the wheel axle fixing hole on the planet carrier. Further, the height of the positioning shaft which is exposed outside the bottom end surface of the placing groove under the natural state of the elastic part exceeds the thickness of the fixing disc of the planet carrier wheel axle. Further, a thread is arranged at the lower end of the positioning hole, the elastic part is matched with the thread through a screw for being positioned in the positioning hole and connected with the bottom end of the positioning shaft, and the elastic part is a spring or an elastic metal sheet. Further, the positioning disc is matched with the placing groove, the bottom end surface of the positioning disc is horizontally arranged, through holes which are vertical to the bottom end surface of the positioning disc are arranged on the positioning disc, each through hole corresponds to the wheel axle fixing hole on the planet carrier and the diameter of each through hole is 0.2-0.3mm larger than that of the wheel axle fixing hole on the planet carrier. Further, the positioning shaft is in clearance fit with one through hole on the positioning disc. After the technical scheme is adopted, the invention has the following advantages: the planet carrier is positioned through the placing groove and the positioning shaft so as to ensure the accurate positioning, the positioning disc is further used for assisting the guarantee of the verticality of the wheel axle, the operation is simple and convenient, the difficulty in operation of a worker is reduced, and the production efficiency and the product quality are further improved. Brief Description of the Drawings In combination of the following figures, the invention is further described. Figure 1 is a schematic diagram of sectional structure of one embodiment of the invention; Figure 2 is a top view of fixed seat; Figure 3 is a top view of positioning disc; Figure 4 is a schematic diagram of sectional structure of embodiment as shown in Figure 1 during using process; Figure 5 is a schematic diagram of structure of planet carrier finished product. Detailed Description of the Invention According to a schematic diagram of the structure of one embodiment of the invention as shown in Figures 1-5, an auxiliary device for pressing a planet carrier wheel axle comprises a fixed seat 1, an unthreaded hole 11 for penetrating and arranging a planet carrier rotating shaft 81 is arranged in the fixed seat 1, a placing groove 12 for placing a fixing disc 82 of the planet carrier wheel axle is arranged above the unthreaded hole 11, the bottom end surface of the placing groove 12 is 2 horizontally arranged, a positioning hole 13 is vertically arranged on the bottom end surface of the placing groove 12, a positioning shaft 3 which can move up and down is arranged in the positioning hole 13, the positioning shaft 3 corresponds to a wheel axle fixing hole 83 on a planet carrier, an elastic part 4 for pushing the positioning shaft 3 upwards is further arranged below the positioning shaft 3 in the positioning hole 13, the positioning shaft 3 is in clearance fit with the wheel axle fixing hole 83 on the planet carrier and the height of the positioning shaft 3 which is exposed outside the bottom end surface of the placing groove 12 under the natural state of the elastic part 4 exceeds the thickness of the fixing disc 82 of the planet carrier wheel axle; in addition, a positioning disc 2 which is matched with the positioning shaft 3 for positioning the wheel axle 84 is further arranged in the placing groove 12, the positioning disc 2 is matched with the placing groove 12, the bottom end surface of the positioning disc 2 is horizontally arranged, through holes 21 which are vertical to the bottom end surface of the positioning disc are arranged on the positioning disc 2, each through hole corresponds to the wheel axle fixing hole 83 of the planet carrier, the diameter of each through hole 21 is 0.2-0.3mm larger than that of the wheel axle fixing hole 83 on the planet carrier, and the positioning shaft 3 is in clearance fit with one through hole 21 on the positioning disc 2. In the embodiment, a step I 31 is arranged at the lower end of the positioning shaft 3, a step 11132 which is matched with the step I 31 is arranged in the positioning hole 13, the positioning shaft 3 uses the step I 31 to push against the step 11132 for limiting the position, a thread 131 is arranged at the lower end of the positioning hole 13, the elastic part 4 is matched with the thread 131 through a screw 5 for being positioned in the positioning hole 13 and connected with the bottom end of the positioning shaft 3, and the elastic part 4 is a spring or an elastic metal sheet; when the planet carrier which needs to press the wheel axle is placed in the fixed seat, the positioning shaft is arranged into the wheel axle fixing hole on the planet carrier by penetration, the positioning is convenient, then the positioning disc is placed on the planet carrier so as to enable the positioning shaft which is exposed outside the fixing disc of the planet carrier wheel axle to be arranged in one through hole on the positioning disc, then the positioning disc is fixed through the placing groove and the positioning shaft, and the wheel axle further penetrates the through hole of the positioning disc and is pressed into the wheel axle fixing hole of the planet carrier. The planet carrier is positioned through the placing groove and the positioning shaft so as to ensure the accurate positioning, the positioning disc is further used for assisting the guarantee of the verticality of the wheel axle, the operation is simple and convenient, the difficulty in operation of a worker is reduced, and the production efficiency and the product quality are further improved; after the pressing of the wheel axle is completed, as the positioning shaft can move upwards due to the thrust of the elastic part, and the wheel axle fixing hole on the planet carrier is pressed into the wheel axle, the positioning shaft can push the fixing disc of the planet carrier wheel axle out of the placing groove and the planet carrier after completing the processing is very easy to take out. The auxiliary device for pressing the Ill-stage planet carrier wheel axle is as shown in the attached drawings of the description, and the pressing against the II-stage or above 3 Ill-stage planet carrier wheel axles can be performed by improvement according to the number and the arranging positions of the through holes on the positioning disc of the invention. The wheel axle fixing hole on the planet carrier is circular or non-circular, and the device of the invention can be used for performing auxiliary processing. In addition to the preferred embodiment, the invention further has other implementation ways, those skilled in the art can make various changes and transformations according to the invention, and the changes and the transformations shall belong to the range defined by the attached claims of the invention on the premise of not separating from the spirit of the invention. 4

Claims

1. An auxiliary device for pressing a planet carrier wheel axle, characterized by comprising a fixed seat (1), an unthreaded hole (11) for penetrating and arranging a planet carrier rotating shaft (81) is arranged in the fixed seat, a placing groove (12) for placing a fixing disc (82) of the planet carrier wheel axle is arranged above the unthreaded hole, a positioning structure for positioning a wheel axle fixing hole (83) on a planet carrier is arranged on the bottom end surface of the placing groove, and a positioning disc (2) which is matched with the positioning structure for positioning the wheel axle (84) is further arranged in the placing groove.

2. The auxiliary device for pressing the planet carrier wheel axle according to claim 1, characterized in that the bottom end surface of the placing groove is horizontally arranged, the positioning structure comprises at least one positioning hole (13) which is vertically arranged on the bottom end surface of the placing groove and a positioning shaft (3) arranged in the positioning hole for moving up and down, the positioning shaft corresponds to the wheel axle fixing hole on the planet carrier, and an elastic part (4) for pushing the positioning shaft upwards is further arranged below the positioning shaft in the positioning hole.

3. The auxiliary device for pressing the planet carrier wheel axle according to claim 2, characterized in that the positioning shaft is in clearance fit with the wheel axle fixing hole on the planet carrier.

4. The auxiliary device for pressing the planet carrier wheel axle according to claim 2, characterized in that the height of the positioning shaft which is exposed outside the bottom end surface of the placing groove under the natural state of the elastic part exceeds the thickness of the fixing disc of the planet carrier wheel axle.

5. The auxiliary device for pressing the planet carrier wheel axle according to claim 2 or 4, characterized in that a thread (131) is arranged at the lower end of the positioning hole, the elastic part is matched with the thread through a screw (5) for being positioned in the positioning hole and connected with the bottom end of the positioning shaft, and the elastic part is a spring or an elastic metal sheet.

6. The auxiliary device for pressing the planet carrier wheel axle according to claim 1, characterized in that the positioning disc is matched with the placing groove, the bottom end surface of the positioning disc is horizontally arranged, through holes (21) which are vertical to the bottom end surface of the positioning disc are arranged on the positioning disc, each through hole corresponds to the wheel axle fixing hole on the planet carrier and the diameter of each through hole is 0.2-0.3mm larger than that of the wheel axle fixing hole on the planet carrier.

7. The auxiliary device for pressing the planet carrier wheel axle according to claim 2, 5 characterized in that the positioning shaft is in clearance fit with one through hole on the positioning disc. 6