Driving shaft DO inner ring subassembly assembling device

Abstract

The invention relates to the technical field of driving shafts, and provides a driving shaft DO inner ring sub-assembly assembling device which is characterized in that a retainer provided with a DO inner ring is positioned and placed in a placement groove of a positioning seat for anastomotic placement, and a steel ball is placed in each steel ball guide groove; the rotary ball mounting mechanism is rotatably arranged outside the supporting column and the positioning seat to assemble the steel balls into the retainer, so that a plurality of steel balls can be assembled at the same time through one mechanism, force applied during assembly is uniform, the assembly effect is good, and the efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of drive shaft technology, and more particularly to a drive shaft DO inner ring sub-assembly assembly device. Background Technology

[0002] The double offset sliding joint, or DO joint for short, consists of an inner ring sub-assembly comprising a DO inner ring, a cage, and six steel balls. The assembly process is as follows: 1. The DO inner ring is fitted into the cage, aligning the inner ring groove with the cage window; 2. The steel balls are sequentially hammered into the cage windows using a nylon rod. The steel balls and cage windows have an interference fit. The operator applies force directly to the steel balls using a nylon rod to hammer them into the cage, which is difficult and cannot effectively guarantee that each steel ball is properly assembled, resulting in low efficiency. The pain point of the original assembly method is that the operator needs to apply a large amount of force during steel ball assembly, and only one steel ball can be assembled at a time. Based on these problems, a new design is proposed that reduces the actual force applied during assembly and allows for the simultaneous assembly of multiple steel balls. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a drive shaft DO inner ring sub-assembly assembly device, which solves the problems in the background art.

[0004] To achieve the above objectives, the present invention provides a drive shaft sub-assembly assembly device, comprising a base, a support column disposed at the top center of the base, a cylindrical positioning seat disposed at the top of the support column, a placement groove for positioning and placing an inner ring and a retainer disposed at the top center of the positioning seat, and steel ball guide grooves for matching steel balls distributed around the placement groove at the top of the positioning seat, the steel ball guide grooves being disposed from the edge of the positioning seat toward the center of the placement groove, and the steel ball guide grooves communicating with the placement groove; a rotating ball loading mechanism is rotatably disposed outside the support column and the positioning seat to assemble the steel balls in the steel ball guide grooves into the retainer.

[0005] Preferably, the rotating ball loading mechanism includes a rotating base rotatably disposed outside the support column and the positioning seat. The rotating base is attached to the outer surface of the support column and the positioning seat. A turntable is provided on the top of the rotating base. The center of the turntable has a through hole larger than the diameter of the placement slot. Assembly slots matching the steel ball guide slots are distributed around the through hole.

[0006] Preferably, one side of the assembly groove is vertical, pointing towards the center of the vertical placement groove, and the other side of the assembly groove is arc-shaped. The vertical side of the assembly groove limits the steel ball, and the arc-shaped side applies pressure to the steel ball to insert it into the retainer.

[0007] Preferably, the base has a limiting mechanism for limiting the travel of the rotator, which limits the travel of the rotator to ensure that the travel of the rotator is the same as the travel of the steel ball assembly.

[0008] Preferably, the limiting mechanism includes a limiting arc groove formed on the top of the base, and a limiting post is provided at the bottom of the rotating base. The limiting post is inserted into the limiting arc groove and moves in an arc within the limiting arc groove.

[0009] Preferably, the travel of the limiting post within the limiting arc groove is the same as the travel during assembly with the steel ball.

[0010] Preferably, a handle is provided on the side of the turntable.

[0011] Preferably, the rotating base and the turntable are detachably fixed by a bolt assembly.

[0012] The beneficial effects of this invention are as follows: This invention positions the cage with the inner ring of DO in the placement groove of the positioning seat for a fitting fit. Each steel ball is placed in the guide groove. The steel balls are assembled into the cage by rotating the ball loading mechanism outside the support column and the positioning seat. This mechanism can achieve the simultaneous assembly of multiple steel balls, with uniform force applied during assembly, resulting in good assembly effect and high efficiency. No additional operation is required; only manual labor is needed to quickly install the steel balls.

[0013] The rotating ball loading mechanism achieves overall rotational support by fitting a rotating base onto the support column and positioning seat. The top of the rotating base is fixed to a turntable that can be detached by a bolt assembly, ensuring the stability of the entire mechanism outside the support column and positioning seat. The turntable has through holes for placing a cage with a DO inner ring. The through holes have assembly slots for assembling steel balls. The assembly slots apply pressure to the steel balls through their arc-shaped sides, loading the steel balls into the cage as the turntable rotates. The vertical sides of the assembly slots limit the movement of the steel balls.

[0014] The limiting mechanism uses a limiting post at the bottom of the turntable to make circular motion within the limiting arc groove of the base, so that the rotation can only perform circular motion. The stroke of the circular motion is the same as the stroke of the steel ball assembly, so as to achieve accurate assembly of the steel balls. The turntable can be easily rotated by a handle. The worker only needs to turn the handle, and the turntable can only rotate within the stroke specified by the limiting arc groove, so as to achieve accurate assembly of all steel balls at one time. The assembly consistency is good, and the angular force is effectively converted into axial force, so that the steel balls can be easily and labor-savingly installed into the cage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the positioning base of the present invention; Figure 3 This is a schematic diagram of the lower part of the support column and positioning seat of the present invention; Figure 4 This is a schematic diagram of the rotating ball loading mechanism of the present invention; Figure 5 This is a schematic diagram from the lower view of the rotating ball loading mechanism of the present invention; Figure 6 This is a schematic diagram of the entire invention from a lower perspective.

[0017] The diagram is marked as follows: 1-Base, 2-Support column, 3-Positioning seat, 4-Placement groove, 5-Steel ball guide groove, 6-Rotating seat, 7-Turntable, 8-Assembly groove, 9-Limiting arc groove, 10-Limiting column, 11-Handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 6As shown, a drive shaft sub-assembly assembly device includes a base 1, a support column 2 at the top center of the base 1, a cylindrical positioning seat 3 at the top of the support column 2, a placement groove 4 at the top center of the positioning seat 3 for positioning an inner ring and a cage, and steel ball guide grooves 5 arranged around the placement groove 4 on the top of the positioning seat 3 for matching steel balls. The steel ball guide grooves 5 are arranged from the edge of the positioning seat 3 toward the center of the placement groove 4 and are connected to the placement groove 4. A rotating ball loading mechanism is rotatably mounted on the support column 2 and the positioning seat 3 to assemble the steel balls in the steel ball guide grooves 5 into the cage. By positioning the cage with the inner ring DO in the placement groove 4 of the positioning seat 3 for a fitting fit, and placing one steel ball in each steel ball guide groove 5, the rotating ball loading mechanism assembles the steel balls into the cage. This mechanism allows for the simultaneous assembly of multiple steel balls with uniform force, resulting in good assembly effect and high efficiency.

[0021] The rotating ball loading mechanism includes a rotating base 6 rotatably mounted outside the support column 2 and the positioning seat 3. The rotating base 6 is attached to the outer surface of the support column 2 and the positioning seat 3. A turntable 7 is provided on the top of the rotating base 6. The rotating base 6 and the turntable 7 are detachably fixed by a bolt assembly. The center of the turntable 7 has a through hole larger than the diameter of the placement slot 4. Assembly slots 8 matching the steel ball guide slots 5 are distributed around the through hole. One side of the assembly slot 8 is vertical, pointing towards the center of the vertical placement slot 4, and the other side of the assembly slot 8 is arc-shaped. The vertical side of the assembly slot 8 limits the steel ball, and the arc-shaped side applies pressure to the steel ball to load it into the retainer. The rotating ball loading mechanism achieves overall rotational support by fitting the rotating seat 6 onto the support column 2 and the positioning seat 3. The top of the rotating seat 6 is fixed to the rotating plate 7, which is detachably fixed by bolt assembly, so that the entire mechanism is stably fitted outside the support column 2 and the positioning seat 3. The rotating plate 7 is provided with a through hole to facilitate the placement of the cage with the DO inner ring. The through hole is provided with an assembly groove 8 to assemble the steel ball. The assembly groove 8 applies pressure to the steel ball with its arc-shaped side to load the steel ball into the cage as the rotating plate rotates. The vertical side of the assembly groove 8 limits the position of the steel ball.

[0022] The base 1 has a limiting mechanism for limiting the travel of the rotary seat 6, ensuring that the travel of the rotary seat 6 is the same as the travel of the steel ball assembly. The limiting mechanism includes a limiting arc groove 9 on the top of the base 1, and a limiting post 10 on the bottom of the rotary seat 6. The limiting post 10 is inserted into the limiting arc groove 9 and moves in an arc within the groove. The travel of the limiting post 10 within the limiting arc groove 9 is the same as the travel during steel ball assembly. A handle 11 is provided on the side of the turntable 7. The limiting mechanism uses the limiting post 10 at the bottom of the turntable 6 to make arc motion within the limiting arc groove 9 of the base, so that the turntable 6 can only make arc motion. The stroke of the arc motion is the same as the stroke of the steel ball assembly, so as to achieve accurate assembly of the steel balls. The turntable 7 can be easily rotated by the handle 11. The worker only needs to turn the handle 11, and the turntable 7 can only rotate within the stroke specified by the limiting arc groove 9, so as to achieve accurate assembly of all steel balls at one time. The assembly consistency is good, and the angular force is effectively converted into axial force, so that the steel balls can be easily and labor-savingly installed into the cage.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and many other variations of different aspects of the invention as described above exist, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A drive shaft DO inner ring sub-assembly assembly device, comprising a base (1), characterized in that, The base (1) has a support column (2) at the top center, and a cylindrical positioning seat (3) is provided at the top of the support column (2). The positioning seat (3) has an inner ring and a placement groove (4) for positioning and placing the cage at the top center. The top of the positioning seat (3) is located around the placement groove (4) and has steel ball guide grooves (5) for matching steel balls distributed around it. The steel ball guide grooves (5) are arranged from the edge of the positioning seat (3) toward the center of the placement groove (4) and are connected to the placement groove (4). The support column (2) and the positioning seat (3) are rotatably provided with a rotating ball loading mechanism to assemble the steel balls in the steel ball guide grooves (5) into the cage.

2. The drive shaft DO inner ring sub-assembly assembly device according to claim 1, characterized in that, The rotating ball loading mechanism includes a rotating seat (6) that is rotatably disposed outside the support column (2) and the positioning seat (3). The rotating seat (6) is attached to the outer surface of the support column (2) and the positioning seat (3). A turntable (7) is provided on the top of the rotating seat (6). The center of the turntable (7) is a through hole larger than the diameter of the placement groove (4). Assembly grooves (8) matching the steel ball guide groove (5) are distributed around the through hole.

3. The drive shaft DO inner ring sub-assembly assembly device according to claim 2, characterized in that, One side of the assembly groove (8) is vertical, pointing towards the center of the vertical placement groove (4), and the other side of the assembly groove (8) is arc-shaped. The vertical side of the assembly groove (8) limits the steel ball, and the arc-shaped side applies pressure to the steel ball to load the steel ball into the retainer.

4. The drive shaft DO inner ring sub-assembly assembly device according to claim 2, characterized in that, The base (1) has a limiting mechanism for limiting the travel of the rotator (6). The limiting mechanism limits the travel of the rotator (6) to ensure that the travel of the rotator (6) is the same as the travel of the steel ball assembly.

5. The drive shaft DO inner ring sub-assembly assembly device according to claim 3, characterized in that, The limiting mechanism includes a limiting arc groove (9) opened on the top of the base (1), and a limiting post (10) is provided at the bottom of the rotating seat (6). The limiting post (10) is inserted into the limiting arc groove (9) and the limiting post (10) makes arc movement in the limiting arc groove (9).

6. The drive shaft DO inner ring sub-assembly assembly device according to claim 4, characterized in that, The travel of the limiting post (10) within the limiting arc groove (9) is the same as the travel of the assembly with the steel ball.

7. The drive shaft DO inner ring sub-assembly assembly device according to claim 2, characterized in that, The turntable (7) is provided with a handle (11) on its side.

8. The drive shaft DO inner ring sub-assembly assembly device according to claim 2, characterized in that, The rotating base (6) and the turntable (7) are detachably fixed by bolt assembly.

Images