Assembling tool for CV joint

Abstract

The utility model discloses an assembling tool for a CV joint. The assembling tool comprises a handle, an elbow, a connecting shaft, a hammer head and a bushing, a hammer head is fixed at the other end of the handle; a gear bulge and a connecting shaft are arranged at the other end of the elbow; the inner diameter of the lining is matched with the outer diameter of the connecting shaft, and the lining is arranged outside the connecting shaft in a sleeving mode, abuts against the gear protrusion and is detachably fixed to the connecting shaft. And the outer diameter of the bushing is matched with the inner diameter of the CV inner ring. According to the assembling tool, CV joints of various models can be assembled, the assembling cost of the CV joints is reduced, the storage space of the assembling tool is saved, and the production efficiency of a whole production line is improved.

Description

Technical Field

[0001] This utility model belongs to the field of manufacturing technology of CV joints for automobiles, and relates to an assembly tool for CV joints. Background Technology

[0002] During vehicle operation, the wheels are high-speed rotating components. The CV joint, connected to the wheel hub, transmits power and torque and is a key component of the driveshaft. For example... Figure 1 As shown, the CV section consists of an outer CV ring 1, a steel ball 2, a cage 3, and an inner CV ring 4. Currently, it is mostly assembled manually. Existing manual assembly tools can only be used to install a single model of CV section. Different models of tooling require different models of assembly tools. Production units need to keep various models of assembly tools on hand, which not only increases manufacturing costs and requires more storage space, but also makes changing assembly tools time-consuming and labor-intensive, affecting the overall production efficiency of the production line. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems in the prior art and provide an assembly tool for CV sections. This assembly tool can assemble various models of CV sections with one machine, reducing the assembly cost of CV sections, saving storage space for the assembly tool, and improving the overall production efficiency of the production line.

[0004] To achieve the above objectives, the solution of this utility model is: an assembly tool for a CV section, including a handle, an elbow, a connecting shaft, a hammer, and a bushing; one end of the handle is fixed with an elbow, and the other end is fixed with a hammer; the other end of the elbow is provided with a stop protrusion and a connecting shaft; the inner diameter of the bushing matches the outer diameter of the connecting shaft, and it is sleeved on the outside of the connecting shaft, rests on the stop protrusion, and is detachably fixed to the connecting shaft; the outer diameter of the bushing matches the inner diameter of the CV inner ring.

[0005] More preferably, the inward bending angle of the elbow is 100° to 150°, and more preferably 103° to 170°. This makes operation and use more convenient.

[0006] More preferably, the central axis of the connecting shaft is offset from the central axis of the elbow and deviates towards the outer bending angle end of the elbow. At the inner bending angle end of the elbow, the stop protrusion always extends beyond the bushing, thus preventing any part other than the bushing from entering the spline hole of the CV inner ring; the stop protrusion then functions as a stop.

[0007] More preferably, the central axis of the connecting shaft is offset from the central axis of the elbow by 1-3 mm, and most preferably by 2 mm.

[0008] More preferably, the hammerhead is made of nylon or POM. Striking the steel ball during installation will not damage the steel ball.

[0009] The instructions for using the assembly tool of this utility model are as follows: First, assemble the inner CV ring and the cage together. Then, place the assembly of the cage and the inner CV ring into the outer CV ring. Next, place the bushing 9 of the assembly tool into the spline hole of the inner CV ring. Shake the assembly tool to rotate the assembly of the inner CV ring and the cage a certain angle within the inner cavity of the outer CV ring. Then, place the steel ball into the window of the cage. Repeat this operation until all the steel balls are inserted into the window of the cage. Finally, use the assembly tool to adjust the inner CV ring to a horizontal position to complete the installation.

[0010] The advantages of this invention compared to existing technologies are: because the bushing is detachable, when using different models of CV sections, simply replace it with a bushing that matches the spline hole of the CV inner ring. Therefore, this invention allows for the assembly of various models of CV sections with a single assembly tool, reducing assembly costs, saving storage space for assembly tools, and improving the overall production line efficiency. Attached Figure Description

[0011] Figure 1 This is the front view of the inner ring of CV (with partial section).

[0012] Figure 2 This is the front view of the present utility model (with partial section).

[0013] Figure 3 This is a front view (with partial section) of the handle, elbow, connecting shaft and hammer head in this utility model.

[0014] Figure 4 This is a front sectional view of the bushing in this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] like Figures 2 to 4As shown, this embodiment includes a handle 6, an elbow 7, a connecting shaft 11, a hammer 5, and a bushing 9. One end of the handle 6 is fixed to the elbow 7, and the other end is fixed to the hammer 5. The other end of the elbow 7 is provided with a stop protrusion 8 and the connecting shaft 11. The inner diameter of the bushing 9 matches the outer diameter of the connecting shaft 11; it fits over the connecting shaft 11, rests against the stop protrusion 8, and is detachably fixed to the connecting shaft 11. The outer diameter of the bushing 9 matches the inner diameter of the CV inner ring 4. Preferably, the inner bending angle of the elbow 7 is 100°–115°, more preferably 103°–110°. This makes operation more convenient. Preferably, the central axis of the connecting shaft 11 is offset from the central axis of the elbow 7 and deviates towards the outer bending angle end of the elbow. At the inner bending angle end of the elbow 7, the stop protrusion 8 always extends beyond the bushing 9, so that other parts besides the bushing cannot enter the spline hole of the CV inner ring, and the stop protrusion 8 functions as a stop. Preferably, the central axis of the connecting shaft 11 is offset from the central axis of the elbow 7 by 1-3 mm, most preferably 2 mm. Preferably, the hammer head 5 is made of nylon or POM. Striking the steel ball during installation will not damage the steel ball.

[0017] The instructions for using the assembly tool of this utility model are as follows: First, assemble the CV inner ring 4 and the cage 3 together. Then, place the assembly of the cage 3 and the CV inner ring 4 into the CV outer ring 1. Next, place the bushing 9 of the assembly tool into the spline hole of the CV inner ring 4. Shake the assembly tool to rotate the assembly of the CV inner ring 4 and the cage 3 within the inner cavity of the CV outer ring 1 by a certain angle. Then, place the steel ball 2 into the window of the cage 3. Repeat this operation until all the steel balls 2 are inserted into the window of the cage 3. Finally, use the assembly tool to adjust the CV inner ring 4 to a horizontal position to complete the installation. By simply replacing the bushing 9, this utility model can assemble any type of CV section, making it widely applicable.

[0018] The above-described embodiments are merely preferred and exemplary, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CV section assembly tool, characterized in that: It includes a handle, an elbow, a connecting shaft, a hammer, and a bushing; one end of the handle is fixed with an elbow, and the other end is fixed with a hammer; the other end of the elbow is provided with a stop protrusion and a connecting shaft; the inner diameter of the bushing matches the outer diameter of the connecting shaft, it is fitted over the connecting shaft, rests on the stop protrusion, and is detachably fixed to the connecting shaft; the outer diameter of the bushing matches the inner diameter of the CV inner ring.

2. The assembly tool for the CV section according to claim 1, characterized in that: The inner bending angle of the elbow is 100° to 115°.

3. The assembly tool for the CV section according to claim 2, characterized in that: The inner bending angle of the elbow is 103° to 110°.

4. The assembly tool for the CV section according to claim 1, 2, or 3, characterized in that: The central axis of the connecting shaft is offset from the central axis of the elbow and deviates towards the outer bending angle end of the elbow.

5. The assembly tool for the CV section according to claim 4, characterized in that: The central axis of the connecting shaft is offset from the central axis of the elbow by 1-3mm.

6. The assembly tool for the CV section according to claim 5, characterized in that: The hammerhead is made of nylon or POM.

7. The assembly tool for a CV section according to claim 1, 2, or 3, characterized in that: The hammerhead is made of nylon or POM.

Images