A sliding sleeve end cover press fitting fixture

Abstract

The invention discloses a press-fitting fixture for a sliding sleeve end cover, comprising a base with a variable diameter, a guide sleeve with a boss I on the outer peripheral wall of the lower end, a fixed sleeve with a boss II on the inner peripheral wall of the upper end, and more than 6 springs evenly and vertically distributed on the same circumference; the base is placed in the mounting hole of the press workbench, the guide sleeve with a spring in the upper receiving groove is sleeved on the guide column at the upper end of the base, and the lower end of the spring is placed in the lower groove seat of the base; the fixed sleeve is sleeved outside the guide sleeve boss I, and its boss II is clamped on the guide sleeve boss I, and it is fixed on the large diameter step of the base by a connecting piece fixed in the mounting holes I and II; the end cover is pressed into place, and the distance between the upper end face of the guide sleeve and the bottom face of the guide groove of the upper end cover of the base is the same as the distance between the mounting face of the sliding sleeve flange and the bottom face of the end cover. The invention can easily install this convex end cover, with accurate alignment, uniform pressure, convenient use, no damage to the end cover, successful installation at one time, labor saving, and high installation efficiency.

Description

Technical Field

[0001] The invention belongs to the field of half-axle processing and relates to a sliding sleeve end cover press-fitting fixture. Background Art

[0002] With the development of vehicles, more and more types of connecting parts and sleeves are used. There is a sleeve connected to the differential of an automobile with a flange-type connection structure at one end. A convex-shaped end cover with a large diameter at the opening end needs to be fixed on the inner port of the end with the flange-type connection structure to prevent the outflow of lubricating grease. Since the crimping fixation of this end cover is to install it in the direction of the opening toward the inner cavity of the sleeve, and the end cover has a thin wall and cannot be directly installed by top connection, it is imperative to develop a clamp that can easily install this convex-shaped end cover in the sleeve without damaging the end cover. 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 a sliding sleeve end cover pressing fixture that can easily install the convex end cover in the sliding sleeve. The fixture has accurate positioning, uniform pressure, is easy to use, does not damage the end cover, can be installed successfully in one time, saves labor, and has high installation efficiency.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a sliding sleeve end cover press-fitting fixture, including a base with a variable diameter, a guide sleeve with a boss I on the outer peripheral wall of the lower end, a fixed sleeve with a boss II on the inner peripheral wall of the upper end, and more than 6 springs evenly and vertically distributed on the same circumference; the lower end portion of the base with a small diameter matches the mounting hole of the press worktable, the upper end surface of the inner end of the large diameter step adjacent to the lower end is provided with a lower groove seat for each spring whose center is located on the same circumference, and the outer end is evenly provided with a plurality of mounting holes I whose center is located on the same circumference, the upper end portion of the large diameter step of the base is a guide column of the guide sleeve that precisely slides with the inner hole of the guide sleeve, and the upper end surface of the base is provided with an end cover guide groove whose inner diameter matches the small diameter of the lower end of the end cover and whose height is not higher than the height of the lower end of the end cover; the inner diameter of the guide sleeve matches the upper end of the end cover The large outer diameter of the fixing sleeve matches that of the guide sleeve boss Ⅰ, and the upper receiving grooves of each spring are formed on the lower end face thereof, and the upper port of the inner hole thereof has an inner step matching the stopper of the flange-type connection end of the sliding sleeve; the inner diameter of the fixing sleeve matches the outer diameter of the guide sleeve boss Ⅰ, and a mounting hole Ⅱ is formed on the fixing sleeve to be used in conjunction with the mounting hole Ⅰ of the base; the base is placed in the mounting hole of the press machine worktable, the guide sleeve with the spring in the upper receiving groove is sleeved on the guide column at the upper end of the base, and the lower end of the spring is placed in the lower groove seat of the base; the fixing sleeve is sleeved on the outside of the guide sleeve boss Ⅰ, and its boss Ⅱ is clamped on the guide sleeve boss Ⅰ, and it is fixed to the large diameter step of the base by the connecting pieces fixed in the mounting holes Ⅰ and Ⅱ; the end cover is pressed into place, and the distance between the upper end face of the guide sleeve and the bottom face of the guide groove of the end cover at the upper end of the base is the same as the distance between the mounting surface of the sliding sleeve flange and the bottom face of the end cover.

[0005] Further preferably, each corner of the step in the guide sleeve is an arc-shaped chamfer, the height of the guide groove of the upper end cover of the base is the same as the height of the lower end of the end cover, and each corner is an arc-shaped chamfer, which is safer to use.

[0006] Further preferably, a through hole is opened in the center of the base to reduce the weight and cost of the base.

[0007] Further preferably, the outer diameter of the large-diameter step of the base is the same as the outer diameter of the fixing sleeve.

[0008] When in use, first place the opening of the installed end cover upward into the end cover accommodation position formed between the upper end of the guide sleeve and the guide groove of the base end cover, then manually align the flange connection end of the installed sleeve with the stopper and place it on the upper end face of the guide sleeve, move the press head to the upper end face of the sleeve, press the press head downward, press the end cover into the inner port of the flange connection end of the sleeve, move the press head away, the guide sleeve returns to its position under the action of the spring, the guide sleeve tops the sleeve and is removed after the sleeve returns to its position. The present invention can easily install this convex end cover in the sleeve, each component has high concentricity with the sleeve and the plug cover, accurate alignment, uniform pressure, easy use, no damage to the end cover, one-time successful installation, saving labor, high installation efficiency, and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A sliding sleeve equipped with an end cover;

[0010] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0011] Figure 3 It is a schematic diagram of the structure of the present invention after being assembled and the installed sliding sleeve and end cover are placed in a fixture;

[0012] Figure 4 It is a schematic diagram of the structure when the sliding sleeve and the end cover are installed in place by a press after the assembly of the present invention;

[0013] Figure 5 The schematic diagram of the structure of the present invention is that after the sliding sleeve and the end cover are installed in place, the pressing head of the press is removed. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with specific embodiments.

[0015] like Figures 1 to 5As shown, this embodiment includes a base 9 with a variable diameter, a guide sleeve 5 with a boss Ⅰ52 on the outer peripheral wall of the lower end, a fixed sleeve 8 with a boss Ⅱ81 on the inner peripheral wall of the upper end, and more than 6 (8 in this embodiment) springs 6 evenly distributed vertically on the same circumference. The lower end 91 of the base 9 with a small diameter matches the mounting hole 11 of the press worktable 10, and the upper end surface of the inner end of the large diameter step 92 adjacent to the lower end 91 is provided with a lower groove seat 97 of each spring whose center is located on the same circumference, and the outer end is evenly provided with a plurality of mounting holes Ⅰ95 whose center is located on the same circumference. The upper end 93 of the large diameter step 92 of the base 9 is a guide column of the guide sleeve 5 that precisely slides with the inner hole of the guide sleeve 5, and the upper end surface of the base 9 is provided with an end cover guide groove 96 whose inner diameter matches the small diameter of the lower end of the end cover 4 and whose height is not higher than (equal to in this embodiment) the height of the lower end of the end cover 4. The inner diameter of the guide sleeve 5 matches the large outer diameter of the upper end of the end cover 4, and the lower end surface thereof is provided with upper receiving grooves 53 for each spring 6, and the upper end of the inner hole thereof is provided with an inner step 51 matching the stopper 3 of the flange connection end of the sliding sleeve 1. The inner diameter of the fixed sleeve 8 matches the outer diameter of the guide sleeve boss Ⅰ52, and the fixed sleeve 8 is provided with a mounting hole Ⅱ82 for use with the base mounting hole Ⅰ95. The base 9 is placed in the mounting hole 11 of the press machine worktable 10, and the guide sleeve 5 with the spring 6 mounted in the upper receiving groove 53 is sleeved on the guide column at the upper end of the base 9, and the lower end of the spring 6 is placed in the lower groove seat 97 of the base 9. The fixed sleeve 8 is sleeved outside the guide sleeve boss Ⅰ52, and its boss Ⅱ81 is clamped on the guide sleeve boss Ⅰ52, and it is fixed on the large diameter step 92 of the base by a connecting member (screw 7 in this embodiment) fixed in the mounting hole Ⅰ95 and the mounting hole Ⅱ82. The end cover 4 is pressed into place, and the distance between the upper end surface of the guide sleeve 5 and the bottom surface of the guide groove 96 of the upper end cover of the base 9 is the same as the distance between the flange mounting surface of the sliding sleeve 1 and the bottom surface of the end cover 4, both of which are a. At this time, the spring 6 is in the maximum compression state. Preferably, each corner of the step 51 inside the guide sleeve 5 is an arc-shaped chamfer, the height of the guide groove 96 of the upper end cover of the base 9 is the same as the height of the lower end of the end cover 1, and each corner is an arc-shaped chamfer. Preferably, a through hole is opened in the center of the base 9. Preferably, the outer diameter of the large-diameter step of the base 9 is the same as the outer diameter of the fixed sleeve.

[0016] 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 sliding sleeve end cover press-fitting fixture, Features: It comprises a base with a variable diameter, a guide sleeve with a boss I on the outer peripheral wall of the lower end, a fixed sleeve with a boss II on the inner peripheral wall of the upper end, and more than 6 springs evenly and vertically distributed on the same circumference; the lower end of the base with a small diameter matches the mounting hole of the press worktable, the upper end surface of the inner end of the large diameter step adjacent to the lower end is provided with a lower groove seat for each spring whose center is on the same circumference, and the outer end is evenly provided with a plurality of mounting holes I whose center is on the same circumference, the upper end of the large diameter step of the base is a guide column of the guide sleeve which precisely slides with the inner hole of the guide sleeve, and the upper end surface of the base is provided with an end cover guide groove whose inner diameter matches the small diameter of the lower end of the end cover and whose height is not higher than the height of the lower end of the end cover; the inner diameter of the guide sleeve matches the large outer diameter of the upper end of the end cover, and the lower end surface thereof is provided with each spring The upper receiving groove of the inner hole has an inner step matching the stopper of the flange connection end of the sliding sleeve; the inner diameter of the fixed sleeve matches the outer diameter of the guide sleeve boss Ⅰ, and a mounting hole Ⅱ is opened on it for use with the base mounting hole Ⅰ; the base is placed in the mounting hole of the press worktable, and the guide sleeve with a spring in the upper receiving groove is sleeved on the guide column at the upper end of the base, and the lower end of the spring is placed in the lower groove seat of the base; the fixed sleeve is sleeved outside the guide sleeve boss Ⅰ, and its boss Ⅱ is clamped on the guide sleeve boss Ⅰ, and it is fixed to the large diameter step of the base by the connecting piece fixed in the mounting holes Ⅰ and Ⅱ; the end cover is pressed into place, and the distance between the upper end surface of the guide sleeve and the bottom surface of the guide groove of the end cover at the upper end of the base is the same as the distance between the mounting surface of the sliding sleeve flange and the bottom surface of the end cover.

2. The sleeve end cover press-fitting fixture according to claim 1, Features: Each corner of the step in the guide sleeve is an arc-shaped chamfer, the height of the guide groove of the upper end cover of the base is the same as the height of the lower end of the end cover, and each corner is an arc-shaped chamfer.

3. The sliding sleeve end cover press-fitting fixture according to claim 1 or 2, Features: A through hole is formed in the center of the base.

4. The sliding sleeve end cover press-fitting fixture according to claim 3, Features: The outer diameter of the large-diameter step of the base is the same as the outer diameter of the fixing sleeve.

5. The sliding sleeve end cover press-fitting fixture according to claim 1 or 2, Features: The outer diameter of the large-diameter step of the base is the same as the outer diameter of the fixing sleeve.

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