CN217667664U - Rolling bearing press-fitting tool for rack shell assembly of automobile electric power steering device - Google Patents
Rolling bearing press-fitting tool for rack shell assembly of automobile electric power steering device Download PDFInfo
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- CN217667664U CN217667664U CN202222032650.7U CN202222032650U CN217667664U CN 217667664 U CN217667664 U CN 217667664U CN 202222032650 U CN202222032650 U CN 202222032650U CN 217667664 U CN217667664 U CN 217667664U
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- rolling bearing
- rack housing
- housing assembly
- positioning guide
- positioning
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Abstract
The utility model discloses an electronic power assisted steering device rack housing assembly antifriction bearing pressure equipment frock of car, including the base, set up on the base and be used for the first antifriction bearing's of suit ejector pin, cover to locate on the ejector pin and be used for placing rack housing assembly's location uide bushing and set up on the ejector pin and be used for inserting the location guide bar in rack housing assembly's the second antifriction bearing's of interior. The utility model discloses an electronic power assisted steering device rack housing subassembly antifriction bearing pressure equipment frock of car, the simple easy preparation of structure, the pressure equipment is stable and pressure equipment safe and reliable, can improve bearing pressure equipment work efficiency.
Description
Technical Field
The utility model belongs to the technical field of vehicle steering system, specifically speaking, the utility model relates to an electronic power assisted steering device rack housing subassembly antifriction bearing pressure equipment frock of car.
Background
The press mounting of the rack shell assembly of the automobile electric power steering device requires that the press mounting stress is uniform, and the magnitude and the press-in depth of the press-in force are within the qualified requirement range in the press mounting process of the rolling bearing. The existing press fitting tool is mainly manually operated during press fitting, a visual display is used for observing the size of press-in force and the press-in depth, and the press fitting process is low in efficiency and poor in press fitting safety.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electronic power assisted steering device rack housing subassembly antifriction bearing pressure equipment frock of car, the purpose improves pressure equipment work efficiency.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: a rolling bearing press-fitting tool for a rack shell assembly of an automobile electric power steering device comprises a base, an ejector rod, a positioning guide sleeve and a positioning guide rod, wherein the ejector rod is arranged on the base and used for being sleeved with a first rolling bearing, the positioning guide sleeve is sleeved on the ejector rod and used for placing the rack shell assembly, and the positioning guide rod is arranged on the ejector rod and used for being inserted into a center hole of a second rolling bearing in the rack shell assembly.
And a compression spring is arranged between the base and the guide positioning sleeve, and the ejector rod penetrates through the compression spring.
And the positioning guide sleeve is provided with a positioning pin for positioning the rack shell assembly.
And the positioning guide sleeve is provided with a mistake-proofing pin, and the positioning pin and the mistake-proofing pin extend out towards the upper part of the positioning guide sleeve.
The base is provided with an anti-rotation positioning pin, and the positioning guide sleeve is provided with a hole for the anti-rotation positioning pin to be inserted into.
The lower end of the positioning guide rod is in threaded connection with the ejector rod.
The utility model discloses an electronic power assisted steering device rack housing subassembly antifriction bearing pressure equipment frock of car, the simple easy preparation of structure, the pressure equipment is stable and pressure equipment safe and reliable, can improve bearing pressure equipment work efficiency.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is an isometric view of a rolling bearing press-fitting tool for a rack housing assembly of an electric power steering apparatus of an automobile of the present invention;
FIG. 2 is a front view of the rolling bearing press-fitting tool for the rack housing assembly of the electric power steering apparatus of the present invention;
FIG. 3 is a sectional view of the rolling bearing press-fitting tool for the rack housing assembly of the electric power steering apparatus of the present invention;
fig. 4 is a top view of the rolling bearing press-fitting tool for the rack housing assembly of the electric power steering apparatus for an automobile of the present invention;
FIG. 5 is a cross-sectional view of a press fit of a product;
FIG. 6 is an exploded view of the press fit of the product;
labeled in the figure as: 1. positioning the guide rod; 2. a top rod; 3. a mistake proofing pin; 4. positioning pins; 5. positioning a guide sleeve; 6. an anti-rotation positioning pin; 7. a compression spring; 8. a base; 9. a shaft sleeve; 10. a hexagon socket head cap screw; 11. a second rolling bearing; 12. a rack housing assembly; 13. a first rolling bearing.
Detailed Description
The following detailed description of the embodiments of the present invention is provided to help those skilled in the art to more fully, accurately and deeply understand the conception and the technical solution of the present invention, and to help them implement the same, by referring to the accompanying drawings and the description of the embodiments.
It should be noted that, in the following embodiments, the "first" and "second" do not represent absolute differences in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 to 6, the utility model provides a rack housing assembly antifriction bearing pressure equipment frock of auto electric power assisted steering device, including base 8, set up on base 8 and be used for the ejector pin 2 of the first antifriction bearing 13 of suit, the cover locate on ejector pin 2 and be used for placing rack housing assembly's location uide bushing 5 and set up on ejector pin 2 and be used for inserting the location uide bar 1 in the second antifriction bearing 11's in the rack housing assembly centre bore.
Specifically, as shown in fig. 1 to 6, the second rolling bearing 11 has been installed in the inner hole of the rack housing assembly, and the press-fitting tool of the present invention is to press-fit the second rolling bearing 11 into the inner hole of the rack housing assembly, and the first rolling bearing 13 needs to be coaxial with the second rolling bearing 11. The positioning guide sleeve 5 is located above the base 8, the base 8 is used for being installed on a press, the base 8 and the positioning guide sleeve 5 are horizontally arranged, a compression spring 7 is arranged between the base 8 and the positioning guide sleeve, the ejector rod 2 is vertically arranged, the ejector rod 2 penetrates through the compression spring 7, the compression spring 7 is a cylindrical spiral spring and is a compression spring, and the compression spring 7 applies elastic acting force for enabling the positioning guide sleeve 5 to move upwards to the positioning guide sleeve. The positioning guide sleeve 5 is provided with a through hole for the ejector rod 2 to pass through, the ejector rod 2 is provided with a first limiting surface which is contacted with the top surface of the positioning guide sleeve 5, and the diameter of the first limiting surface is larger than that of the through hole for the ejector rod 2 to pass through, which is arranged on the positioning guide sleeve 5. The ejector rod 2 is provided with a second limiting surface which is in contact with the first rolling bearing 13, the second limiting surface is positioned above the first limiting surface and is coaxially arranged with the first limiting surface, the diameter of the second limiting surface is larger than that of a central hole of the first rolling bearing 13, and the first limiting surface and the second limiting surface are planes which are perpendicular to the axis of the ejector rod 2.
As shown in fig. 1 to 6, a positioning pin 4 for positioning the rack housing assembly is provided on the positioning guide sleeve 5. The axis of locating pin 4 is parallel with the axis of ejector pin 2, and rack housing assembly has the locating hole that lets locating pin 4 insert, has certain distance between locating pin 4 and the ejector pin 2. The positioning pins 4 are provided in two.
As shown in fig. 1 to 6, the positioning guide sleeve 5 is provided with the error-proofing pin 3, and the positioning pin 4 and the error-proofing pin 3 protrude upward of the positioning guide sleeve 5. The axis of locating pin 4 is parallel with the axis of mistake proofing round pin 3, and rack housing assembly has another locating hole that lets mistake proofing round pin 3 insert, has certain distance between mistake proofing round pin 3 and the ejector pin 2, and mistake proofing round pin 3 sets up one, and the distance between mistake proofing round pin 3 and the ejector pin 2 is less than the distance between locating pin 4 and the ejector pin 2.
As shown in fig. 1 to 6, the base 8 is provided with an anti-rotation positioning pin 6, and the positioning guide sleeve 5 is provided with a hole into which the anti-rotation positioning pin 6 is inserted. The axis of the anti-rotation positioning pin 6 is parallel to the axis of the ejector rod 2, the lower end of the anti-rotation positioning pin 6 is installed on the base 8, the upper end of the anti-rotation positioning pin 6 is inserted into a hole in the positioning guide sleeve 5, a certain distance is reserved between the anti-rotation positioning pin 6 and the ejector rod 2, and the anti-rotation positioning pin 6 is used for preventing relative rotation between the positioning guide sleeve 5 and the base 8.
As shown in fig. 1 to 6, the lower end of the positioning guide rod 1 is in threaded connection with the ejector rod 2, so that the assembly and disassembly are convenient, the positioning guide rod 1 is vertically arranged, the positioning guide rod 1 is coaxial with the ejector rod 2, the positioning guide rod 1 can be upwards inserted into an inner hole of the rack housing assembly and a central hole of the second rolling bearing 11, and the outer diameter of the positioning guide rod 1 is the same as the diameter of the central hole of the second rolling bearing 11 and is smaller than the diameter of the central hole of the first rolling bearing 13. The ejector rod 2 is used for positioning the first rolling bearing 13, the positions of the ejector rod 2 and the positioning guide rod 1 are kept still in the press fitting process, the first rolling bearing 13 sleeved at the upper end of the ejector rod 2 is pressed into an inner hole of the rack shell assembly through the downward pressing of the rack shell assembly, and the positioning guide rod 1 is matched with the second rolling bearing 11 to play a role in guiding.
The specific dynamic operation flow of the press-fitting tool is as follows:
as shown in fig. 5:
the first step is as follows: after the press-fitting tool is assembled, fixing the base 8 on a press by using a bolt to realize the installation of the press-fitting tool on the press;
the second step is that: 1 first rolling bearing 13 is sleeved on the mandril 2;
the third step: placing 1 rack shell component (pressed by a second rolling bearing 11) on a positioning guide sleeve 5, and positioning the rack shell component through a positioning pin 4;
the fourth step: according to the clamping mode shown in fig. 5, a pressing cylinder provided with a pressing head is arranged on a pressing machine, the pressing cylinder provides pressure, the pressing head applies downward pressure to the rack housing assembly, the ejector rod 2 pushes the first rolling bearing 13 into an inner hole of the rack housing assembly, and the force sensor records the pressing-in force of the first rolling bearing 13 when being pressed into the rack housing assembly;
the fifth step: after the first rolling bearing 13 is pressed and assembled, the pressed and assembled rack shell assembly is manually taken down.
The press fitting tool with the structure has the following advantages:
1. the press-fitting tool is simple in structure, easy to manufacture, stable in press-fitting and safe and reliable in press-fitting;
2. in the press mounting process, the press mounting stress, the magnitude of the pressing-in force and the accuracy and the stability of the pressing-in depth between the rolling bearing and the rack shell assembly can be effectively controlled through the matching of the force sensor and the pressure provided by the press;
3. the press-fitting tool is suitable for press-fitting of rolling bearings of various models of rack shell assemblies, and is favorable for saving cost and improving production efficiency.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical scheme of the utility model can be directly applied to other occasions, all within the protection scope of the utility model.
Claims (6)
1. Electronic power assisted steering device rack housing subassembly antifriction bearing pressure equipment frock of car, its characterized in that: the rack housing assembly positioning device comprises a base, a push rod, a positioning guide sleeve and a positioning guide rod, wherein the push rod is arranged on the base and used for sleeving a first rolling bearing, the positioning guide sleeve is sleeved on the push rod and used for placing a rack housing assembly, and the positioning guide rod is arranged on the push rod and used for being inserted into a center hole of a second rolling bearing in the rack housing assembly.
2. The automobile electric power steering device rack housing assembly rolling bearing press fitting tool according to claim 1, characterized in that: and a compression spring is arranged between the base and the positioning guide sleeve, and the ejector rod penetrates through the compression spring.
3. The automobile electric power steering device rack housing assembly rolling bearing press fitting tool according to claim 1, characterized in that: and the positioning guide sleeve is provided with a positioning pin for positioning the rack shell assembly.
4. The automobile electric power steering device rack housing assembly rolling bearing press fitting tool according to claim 3, characterized in that: and the positioning guide sleeve is provided with a mistake-proofing pin, and the positioning pin and the mistake-proofing pin extend out towards the upper part of the positioning guide sleeve.
5. The automobile electric power steering device rack housing assembly rolling bearing press-fitting tool according to any one of claims 1 to 4, characterized in that: the base is provided with an anti-rotation positioning pin, and the positioning guide sleeve is provided with a hole for the anti-rotation positioning pin to be inserted into.
6. The automobile electric power steering device rack housing assembly rolling bearing press-fitting tool according to any one of claims 1 to 4, characterized in that: the lower end of the positioning guide rod is in threaded connection with the ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222032650.7U CN217667664U (en) | 2022-08-03 | 2022-08-03 | Rolling bearing press-fitting tool for rack shell assembly of automobile electric power steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222032650.7U CN217667664U (en) | 2022-08-03 | 2022-08-03 | Rolling bearing press-fitting tool for rack shell assembly of automobile electric power steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217667664U true CN217667664U (en) | 2022-10-28 |
Family
ID=83725846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222032650.7U Active CN217667664U (en) | 2022-08-03 | 2022-08-03 | Rolling bearing press-fitting tool for rack shell assembly of automobile electric power steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217667664U (en) |
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2022
- 2022-08-03 CN CN202222032650.7U patent/CN217667664U/en active Active
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