Disc type CG section grease injection and deflation clamp

Abstract

The invention discloses a grease injection and deflation clamp for a disc type CG joint. The grease injection and deflation clamp is characterized by comprising a base, a fixed plate, a sliding plate and a limiting shifting fork; the lower end of the fixed plate is fixed on the base, and the sliding plate is slidably fixed on the fixed plate; the limiting shifting fork is U-shaped, the lower end of a transverse arm of the limiting shifting fork is detachably fixed to the upper end of the sliding plate, and the distance between two vertical arms of the limiting shifting fork is larger than the diameter of a shaft rod at the lower end of the inner end rubber sleeve and smaller than the diameter of a small end opening of the inner end rubber sleeve. The two vertical arms respectively protrude upwards to form a step I and a step II, and the step II is higher than the step I; when the height difference of the step I and the step II meets the requirement for grease injection, the step I and the step II abut against the small end opening of the inner end rubber sleeve, the step II ejects the inner end rubber sleeve out of the protrusion at the end of the shaft rod, and an air bleeding channel is formed at the position. By using the deflation clamp, deflation can be carried out without manual operation, so that the production efficiency is improved, and the risk that an awl punctures or pierces through a rubber sleeve at the inner end is avoided.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts manufacturing and relates to a deflation clamp for a disc-type CG section grease injection and capping device. Background Art

[0002] The vehicle half shaft comprises a shaft rod 13, an outer end section 15 and an outer end rubber sleeve 14 fixed at one end of the shaft rod 13, an inner end section 9 and an inner end rubber sleeve 10 fixed at the other end of the shaft rod 13, 11 is a large clamp, 12 is a small clamp, such as Figure 1 As shown. The grease injection and capping equipment for disc-type CG joints is a device for grease injection and capping of disc-type CG joints. When injecting grease, it is necessary to deflate the inner end of the workpiece to avoid the gas pressure generated when injecting grease, which prevents the grease from being injected smoothly. The existing disc-type CG joint grease injection and capping equipment adopts the following method: Figure 2 The awl 1 is inserted into the travel venting channel from the small clamp end of the inner end rubber sleeve of the inner end section for venting during grease injection. This venting structure requires the operator to manually insert the awl, which not only affects the production progress of the entire shaft, but also poses the risk of the awl piercing or penetrating the inner end rubber sleeve.

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a disc-type CG joint grease injection and deflation fixture, which can be used for deflation without manual operation, thereby improving production efficiency and avoiding the risk of awl piercing or penetrating the inner end rubber sleeve.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a disc-type CG joint grease injection and degassing fixture, which includes a base, a fixed plate, a sliding plate and a limit fork; the lower end of the fixed plate is fixed on the base, and the sliding plate is slidably fixed on the fixed plate; the limit fork is U-shaped, and the lower end of its horizontal arm is detachably fixed to the upper end of the sliding plate, and the spacing between its two vertical arms is larger than the diameter of the shaft rod at the lower end of the inner end rubber sleeve, and smaller than the diameter of the small end of the inner end rubber sleeve; and the two vertical arms respectively protrude upwards with steps Ⅰ and Ⅱ, and step Ⅱ is higher than step Ⅰ; when the height difference between steps Ⅰ and Ⅱ meets the requirements of grease injection, steps Ⅰ and Ⅱ are pressed against the small end of the inner end rubber sleeve, and step Ⅱ pushes the inner end rubber sleeve out of the protrusion at this end of the shaft rod, so that a degassing channel is formed there.

[0005] Further preferably, the fixed plate has a sliding groove for the sliding plate, and the fixed plate and the sliding plate are respectively provided with a plurality of corresponding fixing holes; the sliding plate is placed in the sliding groove of the fixed plate, and is fixed together by plug pins inserted into the corresponding fixing holes of the two.

[0006] Further preferably, the base is provided with a clearance groove for fixing the outer end section and the outer end rubber sleeve.

[0007] When in use, adjust the fixed plate and the sliding plate to adapt to the length of the half shaft, fix the base of the deflation fixture on the fixed base of the outer end section fixing tooling of the grease injection mechanism of the grease injection and capping equipment, place the inner end section and the inner end rubber sleeve on the limit fork, the shaft rod is located in the U-shaped opening of the limit fork, the grease injection head of the grease injection mechanism moves down and presses on the inner end section, the servo motor drives the fixed base of the outer end section fixing tooling to move up, thereby driving the deflation fixture of the present invention to rise, the limit fork is connected to the small port of the inner end rubber sleeve, and the step II pushes the inner end rubber sleeve out of the protrusion at this end of the shaft rod, so that a deflation channel is formed there. Compared with the prior art, the present invention can deflate without manual operation, improves production efficiency, and avoids the risk of awl piercing or piercing the inner end rubber sleeve. The deflation fixture is height-adjustable to accommodate grease injection of half-axles of various lengths. The limit fork can be replaced according to the size of the half-axle to accommodate various shaft diameters and small port sizes of the inner end rubber sleeve. It is easy to use and has a wide range of adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is the front view of the half shaft for the vehicle; Figure 2 It is a schematic diagram of the three-dimensional structure of the existing deflation cone; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention. DETAILED DESCRIPTION

[0009] The present invention is further described below in conjunction with specific embodiments.

[0010] like Figure 3 As shown, this embodiment includes a base 8, a fixed plate 7, a sliding plate 5 and a limit fork 2. The lower end of the fixed plate 7 is fixed on the base 8, and the sliding plate 5 is slidably fixed on the fixed plate 7. The limit fork 2 is U-shaped, and the lower end of its horizontal arm is detachably fixed to the upper end of the sliding plate 5. The spacing between its two vertical arms is greater than the diameter of the shaft rod at the lower end of the inner end rubber sleeve and smaller than the diameter of the inner end rubber sleeve small port. And the two vertical arms respectively protrude upwards with steps Ⅰ3 and Ⅱ4, and step Ⅱ4 is higher than step Ⅰ3. When the height difference between steps Ⅰ3 and Ⅱ4 meets the requirements of grease injection, steps Ⅰ3 and Ⅱ4 push against the inner end rubber sleeve small port, and step Ⅱ4 pushes the inner end rubber sleeve out of the protrusion at this end of the shaft rod, so that a deflation channel is formed there. Preferably, the fixed plate 7 has a sliding groove for the sliding plate 5, and the fixed plate 7 and the sliding plate 5 are respectively provided with a plurality of corresponding fixing holes; the sliding plate 5 is placed in the sliding groove of the fixed plate 7, and is fixed together by plug-in pins inserted in the corresponding fixing holes of the two. Preferably, the base 8 is provided with a clearance groove 16 for fixing the outer end section and the outer end rubber sleeve.

[0011] 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 disc-type CG joint grease injection and air release fixture, characterized in that: It includes a base, a fixed plate, a sliding plate and a limit fork; the lower end of the fixed plate is fixed on the base, and the sliding plate is slidably fixed on the fixed plate; the limit fork is U-shaped, and the lower end of its horizontal arm is detachably fixed to the upper end of the sliding plate, and the spacing between its two vertical arms is greater than the diameter of the shaft rod at the lower end of the inner end rubber sleeve, and smaller than the diameter of the small end of the inner end rubber sleeve; and the two vertical arms respectively protrude upwards with steps I and II, and step II is higher than step I; when the height difference between steps I and II meets the requirements of grease injection, steps I and II press against the small end of the inner end rubber sleeve, and step II pushes the inner end rubber sleeve out of the protrusion at this end of the shaft rod, so that a deflation channel is formed there.

2. The disc-type CG joint grease injection and air release fixture according to claim 1 is characterized in that: The fixed plate has a sliding groove of the sliding plate, and the fixed plate and the sliding plate are respectively provided with a plurality of corresponding fixing holes; the sliding plate is placed in the sliding groove of the fixed plate, and is fixed together by plugging pins inserted in the corresponding fixing holes of the two.

3. The disc-type CG joint grease injection and air release fixture according to claim 1 or 2, characterized in that: The base is provided with a clearance groove for fixing tooling of the outer end section and the outer end rubber sleeve.

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