Automobile transmission shaft assembly check ring assembly tool

Abstract

The utility model belongs to the field of automobile manufacturing technology relates to a kind of automobile transmission shaft assembly check ring assembly tool, it include: stand, base, check ring bin;Check ring bin is used to stack check ring along vertical direction, the lower cylinder mouth of check ring bin is equipped with check ring bin bottom plate, stand is equipped with swivel arm, the end of swivel arm away from stand is equipped with guide cylinder, when swivel arm rotates to the check ring position of receiving, check ring bin bottom plate horizontally moves and leaves the lower cylinder mouth of check ring bin, when swivel arm rotates and leaves the check ring position of receiving, check ring bin bottom plate horizontally moves and returns the lower cylinder mouth of check ring bin;The utility model is rotated by the rotation cooperation of check ring box and guide cylinder, so that operator only needs to operate press head to press, check ring can be continuously assembled, so the utility model improves the assembly efficiency of automobile transmission shaft assembly check ring, saves time cost and manpower cost, improves the overall efficiency on automobile transmission shaft assembly assembly line.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically relating to an assembly tooling for a retaining ring of an automobile drive shaft assembly. Background Technology

[0002] A retaining ring (also called a snap ring or locking ring) in an automotive driveshaft assembly is a mechanical component used to fix and position other parts. It is typically installed on the splined end of the driveshaft or other locations requiring fixation to prevent loosening or detachment of the connecting parts, ensuring the stability and reliability of the transmission system. The functions of the retaining ring include: fixing position, preventing loosening, and sealing. Retaining rings are classified into elastic retaining rings and rigid retaining rings. Elastic retaining rings are made of spring steel and have a certain degree of elasticity; they require special tools (such as snap ring pliers) to press in or remove them during installation. The retaining ring is a very important small part in the automotive driveshaft assembly. Although seemingly simple, it plays a crucial role in ensuring the stability of the transmission system. Proper assembly not only extends the service life of the driveshaft but also improves driving safety and comfort.

[0003] However, in existing automotive driveshaft assemblies, the retaining rings are manually placed into the shaft hole using snap ring pliers during assembly. Therefore, the existing technology of assembling retaining rings with snap ring pliers has the following disadvantages: 1. Each retaining ring needs to be picked up manually; 2. The snap ring pliers need to be inserted into the retaining ring hole. This method of assembling automotive driveshaft assembly retaining rings is inefficient and seriously affects the overall efficiency of the automotive driveshaft assembly production line.

[0004] Therefore, a tooling or device is needed to improve assembly efficiency and the assembly quality of retaining rings to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a retaining ring assembly fixture for an automotive driveshaft assembly, comprising: a column, a base, and a retaining ring compartment; the column is fixedly connected to the base, the retaining ring compartment is cylindrical, the axis of the retaining ring compartment is vertically erected on the upper surface of the base, the retaining ring compartment is used to stack and horizontally place the retaining rings of the automotive driveshaft assembly in a vertical direction, and the inner cylinder of the retaining ring compartment and the outer diameter of the retaining ring are in clearance fit; the distance between the lower opening of the retaining ring compartment and the upper surface of the base is greater than the thickness of one retaining ring but less than the thickness of two retaining rings; a retaining ring compartment bottom plate that can be translatably moved along the upper surface of the base is provided at the lower opening of the retaining ring compartment, and the thickness of the retaining ring compartment bottom plate is less than the distance between the lower opening of the retaining ring compartment and the upper surface of the base; The column is equipped with a rotating arm that can rotate horizontally around the column. The end of the rotating arm away from the column is equipped with a guide cylinder. The guide cylinder is a vertical conical hole with a larger upper diameter and a smaller lower diameter. The upper diameter of the guide cylinder is larger than the outer diameter of the retaining ring when it is in a loose state, and the lower diameter of the guide cylinder is smaller than the outer diameter of the retaining ring when it is in a tight state and locked in the retaining ring groove. When the rotating arm rotates, there are at least two positions: receiving the retaining ring and assembling the retaining ring. When receiving the retaining ring, the upper opening of the guide cylinder faces the lower opening of the retaining ring chamber from bottom to top. When assembling the retaining ring, the lower opening of the guide cylinder faces the retaining ring mounting hole that abuts against the automotive drive shaft assembly from top to bottom. The horizontal height of the upper surface of the rotating arm is higher than the bottom surface of the retaining ring chamber bottom plate, and the horizontal height of the upper surface of the rotating arm is lower than the lower cylinder opening of the retaining ring chamber. When the rotating arm rotates to the position of receiving the retaining ring, the retaining ring chamber bottom plate moves horizontally away from the lower cylinder opening of the retaining ring chamber. When the rotating arm rotates away from the position of receiving the retaining ring, the retaining ring chamber bottom plate moves horizontally back to the lower cylinder opening of the retaining ring chamber.

[0006] Preferably, the guide cylinder is slidably connected to the rotating arm, and a return spring that can extend and retract in the vertical direction is provided between the guide cylinder and the rotating arm. The two ends of the return spring are respectively fixedly connected to the guide cylinder and the rotating arm.

[0007] Preferably, a retaining ring box is provided on the side wall of the retaining ring compartment along the vertical direction. The retaining ring box is rectangular and its horizontal width is greater than the protruding width of the arc-shaped segments of the two caliper holes of the retaining ring.

[0008] Preferably, the column and the rotating arm are provided with a first bearing and a second bearing at the rotatable connection point. The inner shells of the first bearing and the second bearing are coaxially sleeved on the column, and the outer shells of the first bearing and the second bearing are connected to the rotating arm.

[0009] Preferably, the bottom plate of the retaining ring compartment is connected to a spring that can extend and retract along the horizontal plane. The spring is used to reset the bottom plate of the retaining ring compartment after it is pushed out of the lower cylinder opening of the retaining ring compartment.

[0010] Preferably, the horizontal movement of the retaining ring compartment bottom plate includes: horizontal translation and horizontal rotation.

[0011] The beneficial effects of this utility model are: This invention utilizes the rotational cooperation between the retaining ring box and the guide cylinder, allowing operators to continuously assemble the retaining ring simply by pressing down the press head. Therefore, this invention improves the assembly efficiency of automotive driveshaft assembly retaining rings, saves time and labor costs, and enhances the overall efficiency of the automotive driveshaft assembly production line. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a retaining ring assembly fixture for an automotive driveshaft assembly according to this utility model; wherein, Figure 1 (a) is the front view of the tooling. Figure 1(b) is Figure 1 Sectional view along line AA in (a); Figure 2 This utility model Figure 1 A magnified view of the area in direction B.

[0013] In the diagram, 1 is the column; 2 is the first bearing; 3 is the support; 4 is the second bearing; 5 is the guide cylinder; 6 is the return spring; 7 is the base; 8 is the bottom plate of the retaining ring compartment; 9 is the retaining ring support frame; 10 is the retaining ring box; 11 is the retaining ring compartment; 12 is the retaining ring box bracket; 13 is the retaining ring push plate; 14 is the retaining ring; and 15 is the rotating arm. Detailed Implementation

[0014] The relevant technologies of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figures 1-2 As shown, this embodiment of a car driveshaft assembly retaining ring assembly fixture includes: a column 1, a base 7, and a retaining ring chamber 11; the column 1 is fixedly connected to the base 7, the retaining ring chamber 11 is cylindrical, and the axis of the retaining ring chamber 11 is vertically erected on the upper surface of the base 7. The retaining ring chamber 11 is used to stack and horizontally place the retaining rings 14 of the car driveshaft assembly in the vertical direction. The inner cylinder of the retaining ring chamber 11 and the outer diameter of the retaining ring 14 are clearance fit; the distance between the lower opening of the retaining ring chamber 11 and the upper surface of the base 7 is greater than the thickness of one retaining ring 14 but less than the thickness of two retaining rings 14; the lower opening of the retaining ring chamber 11 is provided with a groove that can be moved along the upper surface of the base 7. The bottom plate 8 of the retaining ring compartment moves horizontally. The thickness of the bottom plate 8 is less than the distance between the lower opening of the retaining ring compartment 11 and the upper surface of the base 7. Since the retaining ring compartment 11 and the retaining ring 14 are clearance fit, the retaining ring 14 stacks upwards on the bottom plate 8 of the retaining ring compartment 11 due to its own weight. Furthermore, since the distance between the lower opening of the retaining ring compartment 11 and the upper surface of the base 7 is greater than the thickness of one retaining ring 14 but less than the thickness of two retaining rings 14, and the upper opening of the guide cylinder 5 is properly positioned, each time the bottom plate 8 of the retaining ring compartment 11 moves away and then returns, one retaining ring 14 falls downwards from the lower opening of the retaining ring compartment 11 into the upper opening of the guide cylinder 5. A rotating arm 15 is provided on the column 1, which can rotate horizontally around the column 1. A guide cylinder 5 is provided at the end of the rotating arm 15 away from the column 1. The guide cylinder 5 is a conical hole with a vertical axis of rotation, which is larger at the top and smaller at the bottom. The upper diameter of the guide cylinder 5 is larger than the outer diameter of the retaining ring 14 in the loose state, and the lower diameter of the guide cylinder 5 is smaller than the outer diameter of the retaining ring 14 in the tensioned state when it is locked in the retaining ring groove. When the rotating arm 15 rotates, it has at least two positions: receiving the retaining ring and assembling the retaining ring. In the position of receiving the retaining ring, the upper opening of the guide cylinder 5 faces the lower opening of the retaining ring chamber 11 from bottom to top. In the position of assembling the retaining ring... When in position, the lower opening of the guide cylinder 5 faces the retaining ring mounting hole of the automotive drive shaft assembly from top to bottom. Since the guide cylinder 5 is a tapered hole and its lower opening is smaller than the outer diameter of the retaining ring 14 when it is in the retaining ring groove under tension, the guide cylinder 5 receives one retaining ring 14 when receiving the retaining ring. When assembling the retaining ring, the press head presses the retaining ring 14 from top to bottom into the retaining ring mounting hole of the automotive drive shaft assembly until it is pressed into the retaining ring groove, completing one installation cycle. Then the guide cylinder 5 can return to the receiving position to receive another retaining ring 14 in preparation for the next installation. The horizontal height of the upper surface of the rotating arm 15 is higher than the bottom surface of the retaining ring chamber bottom plate 8, and the horizontal height of the upper surface of the rotating arm 15 is lower than the lower cylinder opening of the retaining ring chamber 11. When the rotating arm 15 rotates to the position of receiving the retaining ring, the retaining ring chamber bottom plate 8 moves horizontally away from the lower cylinder opening of the retaining ring chamber 11. When the rotating arm 15 rotates away from the position of receiving the retaining ring, the retaining ring chamber bottom plate 8 moves horizontally back to the lower cylinder opening of the retaining ring chamber 11.

[0016] Furthermore, the guide cylinder 5 is slidably connected to the rotating arm 15, and a return spring 6 that can extend and retract in the vertical direction is provided between the guide cylinder 5 and the rotating arm 15. The two ends of the return spring 6 are respectively fixedly connected to the guide cylinder 5 and the rotating arm 15. The guide cylinder 5 can slide up and down to be closer to the lower opening of the retaining ring chamber 11 when it is in the position of receiving the retaining ring, so that the retaining ring 14 can easily enter the guide cylinder 5. However, when the retaining ring is in the position of assembling, the lower opening of the guide cylinder 5 extends into the retaining ring mounting hole and the retaining ring 14 is placed and loosened radially, so it cannot be pressed into the mounting hole.

[0017] Furthermore, a retaining ring box 10 is provided on the side wall of the retaining ring compartment 11 along the vertical direction. The retaining ring box 10 is rectangular and its horizontal width is greater than the protruding width of the two caliper hole sections of the retaining ring 14. The retaining ring box 10 is used to limit the horizontal position of the caliper hole of the retaining ring 14 through the two caliper hole sections of the retaining ring 14, so that the horizontal angle of the retaining ring 14 assembly is adjustable and controllable, thereby improving the assembly quality.

[0018] Furthermore, a first bearing 2 and a second bearing 4 are provided at the rotatable connection between the column 1 and the rotating arm 15. The inner shells of the first bearing 2 and the second bearing 4 are coaxially sleeved on the column 1, and the outer shells of the first bearing 2 and the second bearing 4 are respectively connected to the rotating arm 15.

[0019] Furthermore, a spring that can extend and retract along the horizontal plane is connected to the bottom plate 8 of the retaining ring compartment. The spring is used to reset the bottom plate 8 after it is pushed out of the lower cylinder opening of the retaining ring compartment 11.

[0020] Furthermore, the horizontal movement of the retaining ring compartment bottom plate 8 includes: horizontal translation and horizontal rotation.

[0021] Example

[0022] In this embodiment, the retaining ring 14 can be pre-installed in a retaining ring storage device consisting of a retaining ring support frame 9, a retaining ring box 10, and a retaining ring compartment 11. The two caliper holes on the retaining ring 14 are inserted into the retaining ring box 10 to store an appropriate number of retaining rings 14 for use. The distance between the retaining ring box 10 and the retaining ring compartment 11 and the bottom plate 8 of the retaining ring compartment is slightly greater than the thickness of one retaining ring 14. The retaining rings 14 fall onto the bottom plate 8 of the retaining ring compartment due to gravity.

[0023] The retaining ring support frame 9, retaining ring box 10 and retaining ring compartment 11 are fixed to the base 7 by the retaining ring box bracket 12; the retaining ring push plate 13 is fixed to the retaining ring box bracket 12, closely attached to the bottom plate 8 of the retaining ring compartment, and tangent to the outer edge of the retaining ring 14, so that the retaining ring 14 will not move when the bottom plate 8 of the retaining ring compartment is pushed.

[0024] Support 3 is mounted on column 1 via first bearing 2 and first bearing 4, and can rotate around column 1. The rotation angle can be controlled if necessary. Guide cylinder 5 is mounted on the positioning hole of support 3 and can be axially displaced relative to support 3 within a certain length via return spring 6. Rotating support 3 pushes open the bottom plate 8 of retaining ring chamber, and retaining ring 14 falls into guide cylinder 5 by gravity. Rotating support 3 resets it, and the press head of the press presses down on retaining ring 14. Guide cylinder 5 moves downward with the pressure until it contacts the corresponding part and obtains support. Guide cylinder 5 has a suitable conical guide surface, which causes retaining ring 14 to shrink to be smaller than the part mounting hole until it is pressed into the retaining ring groove.

[0025] In summary, this invention, through the rotational cooperation between the retaining ring box and the guide cylinder, allows operators to continuously assemble the retaining ring simply by operating the press head of the press machine. Therefore, this invention improves the assembly efficiency of the automotive driveshaft assembly retaining ring, saves time and labor costs, and enhances the overall efficiency of the automotive driveshaft assembly production line.

[0026] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A tooling for assembling a retaining ring in an automotive driveshaft assembly, characterized in that, include: The column (1), base (7), and retaining ring compartment (11) are provided. The column (1) is fixedly connected to the base (7). The retaining ring compartment (11) is cylindrical. The axis of the retaining ring compartment (11) is vertically erected on the upper surface of the base (7). The retaining ring compartment (11) is used to stack and horizontally place the retaining rings (14) of the automotive drive shaft assembly in the vertical direction. The inner cylinder of the retaining ring compartment (11) and the outer diameter of the retaining ring (14) are in clearance fit. The distance between the lower cylinder opening of the retaining ring compartment (11) and the upper surface of the base (7) is greater than the thickness of one retaining ring (14) but less than the thickness of two retaining rings (14). The lower cylinder opening of the retaining ring compartment (11) is provided with a retaining ring compartment bottom plate (8) that can be translated along the upper surface of the base (7). The thickness of the retaining ring compartment bottom plate (8) is less than the distance between the lower cylinder opening of the retaining ring compartment (11) and the upper surface of the base (7). The column (1) is provided with a rotating arm (15) that can rotate horizontally around the column (1). The end of the rotating arm (15) away from the column (1) is provided with a guide cylinder (5). The guide cylinder (5) is a conical hole with a vertical rotating shaft that is larger at the top and smaller at the bottom. The upper diameter of the guide cylinder (5) is larger than the outer diameter of the retaining ring (14) in the loose state, and the lower diameter of the guide cylinder (5) is smaller than the outer diameter of the retaining ring (14) in the retaining ring groove in the tensioned state. When the rotating arm (15) rotates, it has at least two positions: receiving the retaining ring and assembling the retaining ring. In the receiving position, the upper opening of the guide cylinder (5) faces the lower opening of the retaining ring chamber (11) from bottom to top. In the assembling position, the lower opening of the guide cylinder (5) faces the retaining ring mounting hole of the automobile drive shaft assembly from top to bottom. The horizontal height of the upper surface of the rotating arm (15) is higher than the bottom surface of the retaining ring chamber bottom plate (8), and the horizontal height of the upper surface of the rotating arm (15) is lower than the lower opening of the retaining ring chamber (11). When the rotating arm (15) rotates to the receiving position of the retaining ring, the retaining ring chamber bottom plate (8) moves horizontally away from the lower opening of the retaining ring chamber (11). When the rotating arm (15) rotates away from the receiving position of the retaining ring, the retaining ring chamber bottom plate (8) moves horizontally back to the lower opening of the retaining ring chamber (11).

2. The automotive driveshaft assembly retaining ring assembly fixture according to claim 1, characterized in that, The guide cylinder (5) is slidably connected to the rotating arm (15) in the vertical direction. A return spring (6) that can extend and retract in the vertical direction is provided between the guide cylinder (5) and the rotating arm (15). The two ends of the return spring (6) are fixedly connected to the guide cylinder (5) and the rotating arm (15) respectively.

3. The automotive driveshaft assembly retaining ring assembly fixture according to claim 1, characterized in that, The retaining ring compartment (11) has a retaining ring box (10) on its side wall along the vertical direction. The retaining ring box (10) is rectangular and its horizontal width is greater than the protruding width of the arc-shaped section of the two caliper holes of the retaining ring (14).

4. The automotive driveshaft assembly retaining ring assembly fixture according to claim 1, characterized in that, The column (1) and the rotating arm (15) are provided with a first bearing (2) and a second bearing (4). The inner shells of the first bearing (2) and the second bearing (4) are coaxially sleeved on the column (1), and the outer shells of the first bearing (2) and the second bearing (4) are connected to the rotating arm (15).

5. The automotive driveshaft assembly retaining ring assembly fixture according to claim 1, characterized in that, A spring that can extend and retract along the horizontal plane is connected to the bottom plate (8) of the retaining ring chamber. The spring is used to reset the bottom plate (8) of the retaining ring chamber after it is pushed out of the lower cylinder opening of the retaining ring chamber (11).

6. The automotive driveshaft assembly retaining ring assembly fixture according to claim 1, characterized in that, The horizontal movement of the bottom plate (8) of the retaining ring compartment includes: horizontal translation and horizontal rotation.

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