Assembling tool for CV joint

Abstract

The invention 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, various types of CV joints can be assembled through one assembling tool, the assembling cost of the CV joints is reduced, the storage space of the assembling tool is saved, and the production efficiency of the whole production line is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of manufacturing CV joints for automobiles and relates to an assembly tool for CV joints. Background Art

[0002] When the vehicle is in operation, the wheel is a high-speed rotating component. The CV joint is connected to the wheel hub to transmit power and torque, and is a key component of the drive shaft. Figure 1 As shown, the CV joint is composed of a CV outer ring 1, a steel ball 2, a retainer 3 and a CV inner ring 4. Currently, manual assembly is mostly adopted. Existing manual assembly tools can only be used to install a single type of CV joint. Different types of tooling require different types of assembly tools for assembly. The production unit needs to prepare various types of assembly tools, which not only increases the manufacturing cost and requires more storage space, but also takes time and effort to replace the assembly tools, affecting the production efficiency of the overall production line. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide an assembly tool for a CV joint, which can assemble various types of CV joints with one assembly tool, thereby reducing the assembly cost of the CV joint, saving the storage space of the assembly tool, and improving the production efficiency of the overall production line.

[0004] To achieve the above-mentioned purpose, the solution of the present invention is: a CV joint assembly tool, including a handle, an elbow, a connecting shaft, a hammer head and a bushing; an elbow is fixed to one end of the handle, and a hammer head is fixed to the other end; a gear protrusion and a connecting shaft are provided at the other end of the elbow; the inner diameter of the bushing matches the outer diameter of the connecting shaft, and it is sleeved outside the connecting shaft, pressed on the gear protrusion and detachably fixed to the connecting shaft; the outer diameter of the bushing matches the inner diameter of the CV inner ring.

[0005] Further preferably, the inner bending angle of the elbow is 100° to 150°, preferably 103° to 170°, which is more convenient to operate and use.

[0006] Further preferably, the central axis of the connecting shaft deviates from the central axis of the elbow and deviates toward the outer bending angle end of the elbow. The stopper protrusion at the inner bending angle end of the elbow always grows out of the bushing, so that other parts except the bushing part cannot enter the spline hole of the CV inner ring, and the stopper protrusion plays the role of a stopper.

[0007] Further preferably, the central axis of the connecting shaft deviates from the central axis of the elbow by 1-3 mm, preferably 2 mm.

[0008] Further preferably, the hammer head is made of nylon or POM. When the steel ball is installed, hitting the steel ball will not cause damage to the steel ball.

[0009] The instructions for using the assembly tool of the present invention are as follows: first assemble the CV inner ring and the retaining frame together, then place the assembly of the retaining frame and the CV inner ring into the CV outer ring, then place the bushing 9 of the assembly tool into the spline hole of the CV inner ring, shake the assembly tool to rotate the assembly of the CV inner ring and the retaining frame at a certain angle in the inner cavity of the CV outer ring, then place the steel ball into the window of the retaining frame, and repeat this operation until all the steel balls are loaded into the window of the retaining frame, and then use the assembly tool to adjust the CV inner ring to a horizontal state to complete the installation.

[0010] Compared with the prior art, the present invention has the following advantages: since the bushing is detachable, when different types of CV joints are used, it is sufficient to replace the bushing with one that matches the spline hole of the CV inner ring. Therefore, one assembly tool of the present invention can assemble various types of CV joints, thereby reducing the assembly cost of the CV joint, saving the storage space of the assembly tool, and improving the production efficiency of the overall production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the main view of the CV inner ring (with partial section); Figure 2 It is the front view of the present invention (with partial cutaway); Figure 3 It is a front view (with partial section) of the handle, elbow, connecting shaft and hammer head in the present invention; Figure 4 It is a front cross-sectional view of the bushing in the present invention. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with specific embodiments.

[0013] 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. The elbow 7 is fixed at one end of the handle 6, and the hammer 5 is fixed at the other end. The other end of the elbow 7 is provided with a stop protrusion 8 and a connecting shaft 11. The inner diameter of the bushing 9 matches the outer diameter of the connecting shaft 11, and it is sleeved outside the connecting shaft 11, pressed on the stop protrusion 8 and 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° to 115°, preferably 103° to 110°. It is more convenient to operate and use. Preferably, the central axis of the connecting shaft 11 deviates from the central axis of the elbow 7 and deviates toward the outer bending angle end of the elbow. At one end of the inner bending angle of the elbow 7, the stop protrusion 8 always grows out of the bushing 9, so that other parts except the bushing part cannot enter the spline hole of the CV inner ring, and the stop protrusion 8 plays the role of a stop. Preferably, the central axis of the connecting shaft 11 deviates from the central axis of the elbow 7 by 1-3 mm, preferably 2 mm. Preferably, the hammer head 5 is made of nylon or POM. When the steel ball is installed, hitting the steel ball will not cause damage to the steel ball.

[0014] The instructions for using the assembly tool of the present invention are as follows: first assemble the CV inner ring 4 and the retainer 3 together, then place the retainer 3 and the CV inner ring 4 assembly into the CV outer ring 1, then 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 CV inner ring 4 and the retainer 3 assembly at a certain angle in the inner cavity of the CV outer ring 1, then place the steel ball 2 into the window of the retainer 3, and follow this operation until all the steel balls 2 are loaded into the window of the retainer 3, and then use the assembly tool to adjust the CV inner ring 4 to a horizontal state for installation. As long as the bushing 9 is replaced, the present invention can assemble any type of CV joint, and has a wide range of applications.

[0015] The above-described embodiments are only 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 in the protection scope of the present invention.

Claims

1. A CV joint assembly tool, characterized in that: It includes a handle, an elbow, a connecting shaft, a hammer head and a bushing; an elbow is fixed at one end of the handle, and a hammer head is fixed at the other end; a gear protrusion and a connecting shaft are arranged at the other end of the elbow; the inner diameter of the bushing matches the outer diameter of the connecting shaft, the bushing is sleeved outside the connecting shaft, pressed on the gear protrusion and detachably fixed to the connecting shaft; the outer diameter of the bushing matches the inner diameter of the CV inner ring.

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

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

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

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

6. The CV joint assembly tool according to claim 5, characterized in that: The hammer head is made of nylon or POM.

7. The CV joint assembly tool according to claim 1, 2 or 3, characterized in that: The hammer head is made of nylon or POM.

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